While aggression is often conceptualized as a highly stereotyped, innate behavior, individuals within a species exhibit a surprising amount of variability in the frequency, intensity, and targets of their aggression. While differences in genetics are a source of some of this variation across individuals (estimates place the heritability of behavior at around 25-30%), a critical driver of variability is previous life experience. A wide variety of social experiences, including sexual, parental, and housing experiences can facilitate „persistent” aggressive states, suggesting that these experiences engage a common set of synaptic and molecular mechanisms that act on dedicated neural circuits for aggression. It has long been known that sex steroid hormones are powerful modulators of behavior, and also, that levels of these hormones are themselves modulated by experience. Several recent studies have started to unravel how experience-dependent hormonal changes during adulthood can create a cascade of molecular, synaptic, and circuit changes that enable behavioral persistence through circuit level remodeling. Here, we propose that sex steroid hormones facilitate persistent aggressive states by changing the relationship between neural activity and an aggression „threshold”.The subtropical climatic conditions in the winter season characterized by low temperature may enable to induce cold stress in pregnancy and transition periods which results in the production of reactive oxygen species. However, flavonoid enriched impact on pregnancy and lactation of Beetal goats remains unclear in a subtropical cold environment. Forty-eight multiparous pregnant Beetal goats were randomly assigned into two groups, mid-pregnancy (n = 24), late pregnancy to early lactation (n = 24). Mid-pregnancy and late pregnancy were further sub-grouped into control and supplemented with an equal number of animals. Both groups of animals were offered concentrates while the supplemented group was provided additional flavonoid-rich supplementation (Loxidan) at 120 mg/kg/head during the experimental period of 45 days in each phase of pregnancy plus 33 days of kids suckling period only in late pregnancy to early lactation group. Fractional biochemical analysis of Loxidan feed revealed it contained a rich source oonment on pregnancy and lactation to improve reproductive traits.Immune checkpoint inhibitors (ICIs) have become a standard treatment for metastatic urothelial carcinoma (mUC) after platinum-based chemotherapy. However, the prognostic factors for patients with mUC receiving ICIs are not well established. We retrospectively collected clinical and laboratory data and reviewed the survival outcomes of patients with mUC who were treated with ICIs after platinum-based chemotherapy. We used univariate and multivariable Cox proportional hazard models to identify independent prognostic factors, and the concordance index (C-index) to evaluate the performance of the new prognostic model. In addition, bootstrap analysis was employed for internal validation of the prognostic model. A total of 224 patients were included in the study. With a median follow-up of 10.5 months (interquartile range, 5.1-17.4 months), median overall survival (OS) was 13.6 months (95% confidence interval [CI], 9.7-17.3 months). In multivariable analysis, independent prognostic factors predicting adverse OS were the presence of liver metastasis (LM), hypoalbuminemia, and neutrophil-lymphocyte ratio (NLR) >5. When patients were categorized into 3 risk groups, median OS was not reached (NR) (95% CI, 17.3-NR), 9.5 months (6.8-NR), and 2.9 months (2.3-4.4) for patients with a score of 0, 1, and 2+, respectively. The C-index for the new model was 0.763 (95% CI, 0.739-0.787). A novel prognostic model, including LM, hypoalbuminemia, and NLR, was developed and validated to estimate OS in patients with platinum-refractory disease on second- or subsequent-line ICI therapy. Further investigations, including prospective validation, are needed.High-density surface electromyography (HDsEMG) can be used to measure the spatial distribution of electrical muscle activity over the skin. As this distribution is associated with the generation and propagation of muscle fiber action potentials, HDsEMG is processed to extract information on regional muscle activation, muscle fiber characteristics and behaviour of individual motor units. This matrix, developed by the Consensus for Experimental Design in Electromyography (CEDE) project, summarizes recommendations on the use of HDsEMG in experimental studies. For each application, recommendations are included regarding electrode montage, electrode type and configuration, electrode location and orientation, data analysis, and interpretation. Cautions and reporting standards are also included. The steps of the Delphi process to reach consensus are contained in an appendix. This matrix is intended to help researchers when collecting, reporting, and interpreting HDsEMG data. It is hoped that this document will be used to generate new empirical evidence to improve how HDsEMG is used in research and in clinical applications.

Training helps maintain high-quality supervision and its associated benefits (e.g. reduced burnout, improved care). While studies have previously evaluated extended-duration supervision training programmes, none have treated these as complex interventions so have not employed realist approaches.

Building on a previous realist synthesis, this evaluation tests and develops programme theory for extended-duration supervision training to answer the question to what extent does the supervision training programme work, for whom, under what circumstances and why?

We conducted a realist evaluation of a novel state-wide Victorian 3-month supervision training programme including one or two 3.5-h workshops followed by weekly reflexive longitudinal audio diaries (LADs) for up to 12weeks.

Realist evaluation data comprised 25 entrance interviews with nurses and allied health professionals, 176 LADs (and 29 written diaries), and 23 exit interviews. We employed team-based realist analysis to identify context-mechanismre maximised through ongoing supervisor reflexivity paying attention to facilitator-supervisor relationships, as well as protected time for supervisors to translate learning into practice.

Our findings extend the realist synthesis programme theory by highlighting various contexts triggering outcome-generating mechanisms. Programme outcomes are maximised through ongoing supervisor reflexivity paying attention to facilitator-supervisor relationships, as well as protected time for supervisors to translate learning into practice.

For many years there has been concern that new graduate nurses may not have been adequately prepared for the workplace, often framed in terms of whether they are work ready or practice ready and able to deal with the 'reality shock’ of transitioning from student to clinician. This has prompted significant research to investigate the practice readiness of new graduate nurses.

Identify what is known about the practice readiness of new graduate nurses upon commencement of employment, how practice readiness changes over their first year of employment and explore the factors which influence practice readiness.

Scoping review of existing reviews guided by the framework developed by Arksey and O’Malley, with search results based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) Statement.

MEDLINE, CINAHL, PsycINFO, Scopus and Web of Science were searched to identify literature reviews synthesising evidence about new graduate nurses, work readiness, practice readiness, competer understanding of workplace support for new graduate nurses.

Families’ caring competence plays a key role in caring for the elderly with dementia. In particular, the management of the behavioural and psychological symptoms of dementia is different from the management of other symptoms of dementia. However, there is no tool for evaluating family caregiver competence for managing the behavioural and psychological symptoms of dementia.

This study aimed to develop a competence scale in managing the behavioural and psychological symptoms of dementia for family caregivers and to evaluate its psychometric properties.

An instrument development and cross-sectional validation study was conducted.

Twenty-one local dementia centres in Seoul, Korea.

A total of 460 community-dwelling family caregivers of people living with dementia (mean age=69.82±11.08, female=78.7%, spouse=65.7%) participated in the study.

This study was conducted in two steps (1) instrument development and (2) psychometric tests (N=460). After item generation and the evaluation of content validity andtrated to be acceptable (Cronbach’s α=0.922, ICC=0.781).

The competence scale in managing the behavioural and psychological symptoms of dementia for family caregivers was found to be a valid and reliable instrument. The scale is potentially useful for promoting better dementia care in both research and clinical practice settings by enabling the identification of needs to be improved for family caregivers in coping with dementia symptoms.

The competence scale in managing the behavioural and psychological symptoms of dementia for family caregivers was found to be a valid and reliable instrument. The scale is potentially useful for promoting better dementia care in both research and clinical practice settings by enabling the identification of needs to be improved for family caregivers in coping with dementia symptoms.

Pressure injuries are a frequent complication in intensive care unit (ICU) patients, especially in those with comorbid conditions such as chronic obstructive pulmonary disease (COPD). Yet no epidemiological data on pressure injuries in critically ill COPD patients are available.

To assess the prevalence of ICU-acquired pressure injuries in critically ill COPD patients and to investigate associations between COPD status, presence of ICU-acquired pressure injury, and mortality.

This is a secondary analysis of prospectively collected data from DecubICUs, a multinational one-day point-prevalence study of pressure injuries in adult ICU patients. We generated a propensity score summarizing risk for COPD and ICU-acquired pressure injury. The propensity score was used as matching criterion (11-ratio) to assess the proportion of ICU-acquired pressure injury attributable to COPD. The propensity score was then used in regression modeling assessing the association of COPD with risk of ICU-acquired pressure injury, ality. As such, pressure injury may serve as a surrogate for poor prognostic status to help clinicians identify patients at high risk of death. Also, delivery of interventions to prevent pressure injury are paramount in critically ill COPD patients. Further studies should determine if early intervention in critically ill COPD patients can modify development of pressure injury and improve prognosis.

Critically ill COPD patients have a statistically significant higher risk of pressure injury. Moreover, those that develop pressure injury are at higher risk of mortality. As such, pressure injury may serve as a surrogate for poor prognostic status to help clinicians identify patients at high risk of death. Also, delivery of interventions to prevent pressure injury are paramount in critically ill COPD patients. Further studies should determine if early intervention in critically ill COPD patients can modify development of pressure injury and improve prognosis.PI3K kinase plays an important role in regulating key processes in cells, such as cell growth, metabolism, proliferation, and apoptosis. The overexpression of PI3K kinase exists in many cancers. The proteolytic target chimera (PROTAC) technology is a new technology that uses the ubiquitin-proteasome system to degrade a given target protein. It has been described that CRBN-based PROTAC targets the degradation of PI3K kinase. However, PROTAC based on VHL has not been reported yet. Here, we connected the previously obtained highly active PI3K inhibitor to the VHL ligand through different small molecules, and obtained a series of PROTAC molecules targeting PI3K kinase. Obtain the most active compound through screening. It provides evidence for the feasibility of PROTAC technology to recruit VHL E3 ligase in PI3K kinase.T cell receptors (TCRs) orchestrate cellular immunity by recognizing peptide antigens bound and presented by major histocompatibility complex (MHC) proteins. Due to the TCR’s central role in immunity and tight connection with human health, there has been significant interest in modulating TCR properties through protein engineering methods. Complicating these efforts is the complexity and vast diversity of TCR-peptide/MHC interfaces, the interdependency between TCR affinity, specificity, and cross-reactivity, and the sophisticated relationships between TCR binding properties and T cell function, many aspects of which are not well understood. Here we review TCR engineering, starting with a brief historical overview followed by discussions of more recent developments, including new efforts and opportunities to engineer TCR affinity, modulate specificity, and develop novel TCR-based constructs.Heat stress reduces the number of Sertoli cells and impairs spermatogenesis. Mounting evidence indicates that lipid homeostasis is fundamental to cell survival. However, little is known about the role of lipid peroxides in the heat stress-induced apoptosis of Sertoli cells. In the present study, we used metabolomics to explore the changes of lipid peroxides in porcine Sertoli cells under heat stress using liquid chromatograph-mass spectrometry. These results showed a notable increase in the content of 8-hydroxyeicosatetraenoic acid (8-HETE), and 15-hydroxyeicosatetraenoic acid (15-HETE). Furthermore, we found that among arachidonate lipoxygenases, heat stress significantly increased the expression of arachidonate 15-lipoxygenase type B (ALOX15B). Moreover, baicalein, a specific inhibitor of ALOX15B, reduced the content of 8-HETE and 15-HETE, and decreased the apoptosis rate in heat stress-treated porcine Sertoli cells. In addition, baicalein and small interfering RNAs targeting ALOX15B increased the content of 8-HETE and 15-HETE, and activated the p38-p53 pathway, causing apoptosis in heat stress treated porcine Sertoli cells. Interestingly, a p38 inhibitor decreased the expression of ALOX15B, reduced the content of 8-HETE and 15-HETE, and decreased the expression of p53 and the apoptosis rate in heat stress treated porcine Sertoli cells. A p53 inhibitor had similar effect on Sertoli cells. These results indicated that heat stress enhanced the expression of ALOX15B, increased the content of 8-HETE and 15-HETE, and activated the p38-p53 pathway to cause apoptosis. ALOX15B and lipid peroxides obtained feedback from the p38-p53 pathway. Our findings will help to reveal the mechanism of lipid metabolism in Sertoli cells, and could provide a new targeted substrate for anti-heat stress strategies.The cold-inducible RNA-binding protein (CIRBP) assists cells in adapting to new environmental conditions stabilizing specific mRNAs and promoting their translation. CIRBP participates in anti-apoptotic and anti-senescence processes, and its expression is induced by mild hypothermia, which may be advantageous to oocytes during vitrification. Several newly discovered small molecules, like zr17-2, mimic the effects of cold temperatures by increasing the expression of CIRBP at normothermia. This study aimed to evaluate the mRNA changes of a group of cold-inducible protein-encoding and apoptotic genes in response to exogenous supplementation of zr17-2 (experiment 1) or CIRBP (experiment 2) in vitro matured bovine oocytes and their cumulus cells. In experiment 1, cumulus-oocyte complexes (COCs) were randomly exposed to three concentrations of zr17-2 (1, 10, and 100 μM) during 24 h of in vitro maturation (IVM) under normothermia (38.5 °C) or mild hypothermia (34 °C) culture conditions. In experiment 2, COCs were randomly exposed to three concentrations of CIRBP (2, 4, and 6 μg/mL) or subjected to mild hypothermia (34 °C), followed by oocyte vitrification/warming after 20 h of IVM. The quantification of the selected gene transcript expression was performed separately in oocytes and cumulus cells by quantitative real-time PCR. We show that oocytes and cumulus cells exhibited similar mRNA expression responses to mild hypothermia and vitrification. However, minor differences were observed when COCs were exposed to exogenous supplementation with zr17-2 and CIRBP. In conclusion, the alterations observed in the mRNA expression in these experimental conditions may impact the quality of the cumulus-oocyte complexes in terms of vitrification and sublethal hypothermia challenges. In this sense, our results should complement other oocyte quality assessments for its application in future assisted reproductive techniques in the bovine species, including improving oocyte cryotolerance to vitrification.The present study aimed to use cryogenic deep freezers that could be a feasible alternative for cryopreserved semen storage. A total of 284 straws from three Simmental bulls and 272 Simmental cows were used. The experimental group consisted of 151 semen straws that were stored at -152 °C for a week. Moreover, the control group consisted of 133 semen straws that were stored at -196 °C. Firstly, two samples per bull (n = 6) were examined in terms of sperm kinetic parameters by CASA. Furthermore, plasma membrane, acrosome integrity (PMAI) and high mitochondrial membrane potential (HMMP) were analyzed by flow cytometry. Then, artificial inseminations were performed on Simmental cows with 272 straws belonging to two groups. Then, 56th-day Non-return Rate (NRR56) was determined. All spermatological data were subjected to a linear mixed model. Chi-Square test was performed to NRR56 between storage temperature groups. Also, logistic regression analysis was used to examine the effect of bull, storage temperature and age of cows on pregnancy status. While age of cows was included in the final logistic regression model, effect of bull x storage temperature was not included because it was found as non-significant. The post-thaw PMOT and STR of cryopreserved bull semen, which was stored at -152 °C, had lower and statistically significant values (p 0.05). Nevertheless, these results should be supplemented with more pre-freezing and post-thaw sperm quality analyses and more fertility data for increasing the accuracy of the method.The operating principle of innovative interval radon exposure meters INERAD (types IE-2 and IE-4) is described. The major technical features of the both models have been standardized as much as possible. The exposure meters use the LR-115 type 2 track threshold detector, which is sensitive to alpha particles.155Tb [t1/2 = 5.32 d, Eγ = 87 keV (32%); 105 keV (25%) (IAEA, 2021)] is a novel promising radionuclide for theranostic applications in nuclear medicine. Its physical properties make it suitable for single photon emission computed tomography (SPECT) imaging, while its chemistry allows it to be used as a diagnostic partner for therapeutic radiolanthanides or pseudo-radiolanthanides, such as 177Lu and 90Y. Moreover, 155Tb could be used as a precise diagnostic match for the β–emitter 161Tb, opening doors for the true theranostics concept. The availability of 155Tb in quantity and quality suitable for medical applications is an open issue and its production with medical cyclotrons via the 155Gd(p,n)155Tb and 156Gd(p,2n)155Tb nuclear reactions represents a possible but challenging solution. For this purpose, an accurate knowledge of the production cross sections is mandatory. In this paper, we report on the measurement of the production cross sections of 155Tb and other terbium radionuclides formed by proton irradiation of natGd2O3, 155Gd2O3 and 156Gd2O3 enriched targets, performed at the Bern University Hospital cyclotron laboratory. On the basis of the obtained results, the production yield and purity were calculated to assess the optimal irradiation conditions. The results of several production tests are also presented.Accuracy of shoulder kinematics predicted by multi-body kinematics optimisation depend on the joint models used. This study assesses the influence of four different subject-specific gleno-humeral joint models within multi-body kinematics optimisation a 6-degree-of-freedom joint (i.e. single-body kinematics optimisation), a sphere-on-sphere joint (with two spheres of different radii) and a spherical joint with or without penalised translation. To drive these models, the 3D coordinates of 12 skin markers of 6 subjects performing static arm abduction poses up to 180° were used. The reference data was obtained using biplane X-rays from which 3D bone reconstructions were generated scapula and humerus were 3D reconstructed by fitting a template model made of geometrical primitives on the two bones’ X-rays. Without any motion capture system, the recording of the skin markers was performed at the very same time than the X-rays with radiopaque markers. The gleno-humeral displacements and angles, and scapula-thoracic angles were computed. The gleno-humeral sphere-on-sphere joint provided slightly better results than the spherical joint with or without penalised translation, but considerably better gleno-humeral displacements than the 6-DoF joint. Considering that it can easily be personalised from medical images, this sphere-on-sphere model seems promising for shoulder multi-body kinematics optimisation.Accommodation alters the shape of the eye lens to change focus from distant to near vision. This function declines with age in the development of presbyopia and most people experience a near total loss of accommodative ability by 55 years. Currently, there are no surgical procedures that correct presbyopia, but considerable work has been done in the development of accommodative intraocular lenses (AIOLs) implanted during cataract surgery. Despite these efforts, AIOLs only restore ∼ 20% of youthful accommodative amplitude and they suffer from high rates of visually-debilitating fibrosis. An important design tool that is lacking that could aid in improving AIOL designs is modeling. Herein, we addressed this need through the development of a fully 3-D finite element model that was used to predict the behavior of a dual-optic AIOL implanted within the post-surgical lens capsule. Models of the native human lens were developed to identify the stress-free configuration of the lens capsule needed to accurately predict the accommodated state of the lens and the configuration of the zonular traction needed for the disaccommodated state. The AIOL model demonstrated the functional importance of implant stiffness and predicted an approximately linear relationship between zonular traction magnitude and axial displacement of the optics. To our knowledge, this is the first model that can be used to gain insights into AIOL efficacy. It provides a foundation for continued development of a predictive tool that could ultimately improve AIOL designs that seek to restore youthful accommodative function.

Antiplatelet agents may attenuate inflammatory and coagulation responses in patients with sepsis. This study aimed to examine the association between pre-sepsis antiplatelet therapy and survival outcomes in patients with sepsis.

This was a secondary analysis of a Japanese multicenter registry dataset. Participants aged >16 years who were admitted to intensive care units for the treatment of severe sepsis (Sepsis 2 criteria) were dichotomized, according to their pretreatment status with antiplatelet agents. The primary outcome was in-hospital mortality. The data were analyzed using inverse probability of treatment weighting (IPTW) with a propensity score for pre-existing treatment using antiplatelet medication after multiple imputation.

Data from a total of 1184 eligible patients (2016-2017) were analyzed. A total of 175 patients were pretreated with antiplatelet medication. After IPTW, the patients’ characteristics were well balanced between the groups. The in-hospital mortality rate among patients pretreated with antiplatelet medication was significantly lower than that among patients pretreated without antiplatelet medication (18.15% vs. 25.31%, difference -7.86%, 95% confidence interval [CI] -14.3 to -1.4, p = 0.016).

In this study, pretreatment with antiplatelet medication before the onset of sepsis was associated with decreased in-hospital mortality rates.

In this study, pretreatment with antiplatelet medication before the onset of sepsis was associated with decreased in-hospital mortality rates.

To investigate the impact of pulmonary artery catheter (PAC) monitoring on survival of cardiogenic shock(CS), in the light of the controversies in available evidence.

MEDLINE, EMBASE, Cochrane library and Web of Science were systematically screened to identify most relevant studies on patients with CS comparing PAC use to non-use during hospital stay. Short-term mortality was the primary endpoint and the use of Mechanical Circulatory Support (MCS) devices was the secondary one.

Six observational studies including 1,166,762 patients were selected. The most frequent etiology of CS was post-myocardial infarction (75% [95% CI 55-89%] in PAC-group and 81%[95% CI 47-95%] in non-PAC group). Overall, PAC was used in 33%(95% CI 24-44%) of cases. Pooling data adjusted for confounders, a significant association between the PAC-group and a reduction in short-term mortality emerged when compared to the non-PAC group (36%[95% CI 27-45%] vs 47%[95% CI 35-59%];AdjustedOR 0.71, 95% CI 0.59-0.87, p < 0.01). MCS use was significantly higher in PAC vs non-PAC group (59% [95% CI 54-65%]) vs 48% [95% CI 43-53%]);OR 1.60 [95% CI 1.27-2.02, p < 0.01]).

PAC was associated with lower incidence of short-term mortality in CS pooling adjusted observational studies. Prospective studies are needed to confirm our hypothesis and better clarify the mechanisms of this potential prognostic benefit.

PAC was associated with lower incidence of short-term mortality in CS pooling adjusted observational studies. Prospective studies are needed to confirm our hypothesis and better clarify the mechanisms of this potential prognostic benefit.In this paper, we consider image quality assessment (IQA) as a measure of how images are amenable with respect to a given downstream task, or task amenability. When the task is performed using machine learning algorithms, such as a neural-network-based task predictor for image classification or segmentation, the performance of the task predictor provides an objective estimate of task amenability. In this work, we use an IQA controller to predict the task amenability which, itself being parameterised by neural networks, can be trained simultaneously with the task predictor. We further develop a meta-reinforcement learning framework to improve the adaptability for both IQA controllers and task predictors, such that they can be fine-tuned efficiently on new datasets or meta-tasks. We demonstrate the efficacy of the proposed task-specific, adaptable IQA approach, using two clinical applications for ultrasound-guided prostate intervention and pneumonia detection on X-ray images.Automatic diagnosis of 3D medical data is a significant goal of intelligent healthcare. By exploiting the abundant pathological information of 3D data, human experts and algorithms can provide accurate predictions for patients. Considering the high cost of collecting exhaustive annotations for 3D data, a sustainable alternative is to develop diagnosis algorithms with merely patient-level labels. Motivated by the fact that 2D slices of 3D data hold explicit diagnostic efficacy, we propose the Instance Importance-aware Graph Convolutional Network (I2GCN) under the multi-instance learning (MIL). Specifically, we first calculate the instance importance of each slice towards diagnosis using a preliminary MIL classifier, which is further utilized to promote the refined diagnosis branch. In the refined diagnosis branch, we devise the Instance Importance-aware Graph Convolutional Layer (I2GCLayer) to exploit complementary features in both importance-based and feature-based topologies. Moreover, to alleviate the deficient supervision of 3D dataset, we propose the importance-based Sub-Graph Augmentation (SGA) to effectively regularize the framework training. Extensive experiments confirm the effectiveness of our method with different organs and modals on the CC-CCII and PROSTATEx datasets, which outperforms state-of-the-art methods by a large margin. The source code is available at https//github.com/CityU-AIM-Group/I2GCN.G protein coupled receptors (GPCRs) are a class of membrane proteins that sense extracellular signals ranging from light to odorants and small molecules and activate intracellular signaling pathways that control important physiological responses. Being composed of 7 transmembrane helices linked by extracellular and intracellular loops, the great majority of the sequence of these receptors is embedded in the lipid membrane. Therefore, it is expected GPCR structure and function to be impacted by the surrounding lipid environment and the lipid membrane physico-chemical and mechanical properties. A large number of examples from the literature is provided to highlight the role of the lipid nature (lipid headgroup, membrane polyunsaturation and cholesterol) and membrane physical and mechanical properties (curvature elastic stress, membrane thickness and hydrophobic mismatch, fluidity) in the activity of different GPCRs. In addition, lipids are important co-factors being identified in very specific locations in several GPCR structures. GPCRs and G proteins can also be lipid post-translationally modified and such events can significantly impact membrane binding, trafficking and signaling. These aspects are all treated in this review. Understanding how the lipid can modulate GPCR activity is important not only from a fundamental point of view but also due to the fact that certain pathologies, where GPCRs are central targets, have been associated with important lipid imbalance. Establishing a link between the lipid pathological imbalance and the receptor functioning in such environment is thus essential as it can open avenues to potentially innovative therapeutic strategies.The etiology of cognitive dysfunction associated with Alzheimer’s disease (AD) and dementia is multifactorial. Yet, mechanistic interactions among key neurobiological factors linked to AD pathology are unclear. This study tested the effect of interactions between cerebrovascular function, individual genotype, and structural brain pathology on response inhibition performance, an early and sensitive indicator of cognitive executive dysfunction with aging. We quantified cerebrovascular response (CVR) to moderate-intensity aerobic exercise using transcranial doppler ultrasound and global amyloid-beta (Aβ) deposition using positron emission tomography in a group of cognitively normal older adults genotyped as APOE4 carriers and noncarriers. We quantified response inhibition during a cognitive Stroop test. Individuals with blunted CVR possessed greater Aβ deposition. There was CVR-by-carrier status-by-Aβ interaction on response inhibition. Blunted CVR was associated with impaired response inhibition specifically in APOE4 carriers. Despite having greater Aβ deposition, APOE4 carriers with higher CVR demonstrated better response inhibition. Cerebrovascular interactions with individual genotype and structural brain pathology may provide a physiologically-informed target for precision-medicine approaches for early treatment and prevention of cognitive dysfunction with aging.Numerous studies indicate large heterogeneity in brain ageing, which can be attributed to modifiable lifestyle factors, including sleep. Inadequate sleep has been previously linked to gray (GM) and white (WM) matter changes. However, the reported findings are highly inconsistent. By contrast to previous research independently characterizing patterns of either GM or WM changes, we used here linked independent component analysis (FLICA) to examine covariation in GM, and WM in a group of older adults (n = 50). Next, we employed a novel technique to estimate the brain age delta (difference between chronological and brain age assessed using neuroimaging data) and study its associations with sleep quality and sleep fragmentation, hypothesizing that inadequate sleep accelerates brain ageing. FLICA revealed a number of multimodal components, associated with age, sleep quality, and sleep fragmentation. Subsequently, we show significant associations between brain age delta and inadequate sleep, suggesting 2 years deviation above the chronological age. Our findings indicate sensitivity of multimodal approaches and brain age delta in detecting link between inadequate sleep and accelerated brain ageing.

Major depressive disorder (MDD) is underscored by daytime dysfunction-associated features, including mood disturbances, impaired cognition, fatigue, and daytime sleepiness. Importantly, the gut-brain axis may represent a potential mechanistic link between MDD and daytime dysfunction. Therefore, this study aimed to explore the gut microbiome composition and daytime dysfunction in Chinese patients with MDD.

We enrolled 36 patients with MDD and 45 healthy controls (HCs) matched by age, sex, and body mass index (BMI). Daytime function including emotion, fatigue, and sleepiness were assessed using the Epworth Sleepiness Scale (ESS), Fatigue Severity Scale (FSS), Hamilton Anxiety Scale (HAMA), and Hamilton Depression Scale (HAMD). 16S rRNA sequencing was employed to characterize the gut microbiota in stool samples.

The operational taxonomic units (OTUs) OTU255, OUT363 were positively correlated with HAMD and HAMA. OTU244, OTU542 and OTU221 were positively correlated with ESS, HAMD and HAMA. OTU725 and OTU80 w microbiota changes that occur in MDD, and will enable the development of specific therapeutic strategies for targeting the various symptoms of depression.

There is increasing evidence that adiponectin, resistin and leptin may be implicated in the pathophysiology of neuropsychiatric disorders, including schizophrenia. The results of the studies so far remain controversial. Our aim was to compare serum adiponectin, leptin and resistin levels between drug-naïve, first -episode patients with psychosis and healthy controls and in the same group of patients after six weeks of antipsychotic treatment.

Forty first-episode patients with psychosis and 40 matched controls were included in the study. Serum levels of adiponectin, resistin and leptin were measured by enzyme linked immunosorbent assay (ELISA) in both groups. In the patient group, the same adipokines were also measured six weeks after the initiation of antipsychotic treatment.

Log-transformed serum levels of adiponectin (mean difference=1.68, 95% confidence interval [CI]=1.30 to 2.06, U=157, p<0.0001), resistin (0.48, 95% CI=0.36 to 0.59, t=8.00, p<0.0001) and leptin (0.66, 95% CI=0.52 to 0.80, U=160, p<0.0001) were significantly higher to the patient group compared to controls. Leptin levels were significantly decreased in the patient group six weeks after the initiation of antipsychotic treatment (mean change=-0.40, 95% CI=-0.59 to -0.21, W=666; p<0.0001) while those of adiponectin and resistin levels did not change significantly.

In our study we found higher levels of adiponectin, leptin and resistin in drug-naïve, first-episode patients with normal Body Mass Index (BMI) compared to controls. After six weeks of antipsychotic treatment, there was no change in adiponectin and resistin levels, while leptin levels were reduced compared to baseline.

In our study we found higher levels of adiponectin, leptin and resistin in drug-naïve, first-episode patients with normal Body Mass Index (BMI) compared to controls. After six weeks of antipsychotic treatment, there was no change in adiponectin and resistin levels, while leptin levels were reduced compared to baseline.

Traumatic Brain Injury (TBI) has long-term devastating effects for which there is no accurate and effective treatment for inflammation and chronic oxidative stress. As a disease that affects multiple signalling pathways, the search for a drug with a broader spectrum of pharmacological action is of clinical interest. The fact that endocrine disruption (e.g hypogonadism) has been observed in TBI patients suggests that endogenous therapy with testosterone, or its more androgenic derivative, dihydrotestosterone (DHT), may attenuate, at least in part, the TBI-induced inflammation, but the underlying molecular mechanisms by which this occurs are still not completely clear.

In this study, the main aim was to investigate proteins that may be related to the pathophysiological mechanism of TBI and also be pharmacological targets of DHT in order to explore a possible therapy with this androgen using network pharmacology.

We identified 2.700 proteins related to TBI and 1.567 that are potentially molecular targets omolecular processes we next identified that out of 32 mitochondrial-related proteins 3-hydroxy-3-methyl-glutaryl-coenzyme A reductase (HMGCR), peroxisome proliferator activated receptor gamma (PPGARG) and prohibitin are those found highly regulated in the network and potential targets of DHT in TBI. In conclusion, the identification of these cellular nodes may prove to be essential as targets of DHT for therapy against post-TBI inflammation.Liver fibrosis, a disease characterized by the excessive accumulation of extracellular matrix originating from activated hepatic stellate cells (HSCs), is a common pathological response to chronic liver injury resulting from a variety of insults. However, drugs that effectively block the activation of HSCs have still not been adequately investigated. This study demonstrates that metformin decreased the number of activated-HSCs through induction of apoptosis, but did not impact numbers of hepatocytes. Metformin upregulated BAX activation with facilitation of BIM, BAD and PUMA; downregulated Bcl-2 and Bcl-xl, but did not affect Mcl-1. Additionally, metformin induced cytochrome c release from mitochondria into the cytoplasm, directly triggering caspase-9-mediated mitochondrial apoptosis. The decline in mitochondrial membrane potential (ΔΨm) and deposition of superoxide in mitochondria accelerated the destruction of the integrity of mitochondrial membrane. Moreover, we verified the therapeutic effect of metformin in our mouse model of liver fibrosis associated with nonalcoholic steatohepatitis (NASH) in which hepatic function, NASH lesions and fibrosis were improved by metformin. In conclusion, this study indicated that metformin has significant therapeutic value in NASH-derived liver fibrosis by inducing apoptosis in HSCs, but does not affect the proliferation of hepatocytes.The effect of IL-17A in diabetic kidney disease (DKD) has received increasing attention. Interleukin (IL)-17A promotes renal inflammation and the progression of DKD, and IL-17A deficiency improves experimental DKD. However, recent studies have found that the effect of IL-17A on DKD is more complicated than the negative impact. IL-17A alleviates renal inflammation and fibrosis via regulating autophagy or the macrophage phenotype. Moreover, paradoxical expression of IL-17A has been reported in human DKD. This review focuses on how IL-17A affects the progression of DKD and the resulting opportunities and challenges.Trichinellosis is a serious food-borne parasitic zoonosis worldwide. Different host macrophage subsets play various roles during helminth infection; however, the dynamic changes in macrophage subsets following Trichinella spiralis infection have not been reported. Here, flow cytometry and immunofluorescence were used to assess macrophage activation in mesenteric lymph nodes (MLN), spleen, intestine, and muscle from T. spiralis-infected mice at 1, 5, 15, and 30 days post infection (dpi). Macrophages in the intestine, MLN, and spleen tended to be activated M1-type at 1 and 5 dpi, while at 15 dpi, M2-type macrophages started to become a major constituent of the spleen macrophage population, and in the intestine and MLN, macrophages were primarily mixed M1 and M2 type. At 30 dpi, macrophages in the intestine, muscle, MLN, and spleen were all mainly activated M2 cells. Additionally, mouse macrophages were cleared and the adult T. spiralis load were determined to evaluate the impact of macrophages on adult parasite expulsion. The results suggested that predominantly M1 macrophages contribute to adult T. spiralis expulsion in the enteral stage of infection. At the newborn larvae migration stage, M2 macrophage-mediated immunity had a weak scavenging effect on adults, but primarily promoted tissue repair and assisted muscle larva immune escape. Our study reveals further details of the interaction between T. spiralis and the host immune system.Mounting evidence has postulated estrogen as a contributor for lung cancer development and progression. Here, we focused on the effect of estradiol (E2) on the immune escape of non-small cell lung cancer (NSCLC). The expression of FOXO3a in NSCLC samples was screened by gene microarray and then verified using Western blot analysis in NSCLC cell lines. Interaction between E2, SIRT1, FOXO3a and PD-L1 was determined. Following ectopic expression and depletion experiments in A549 and H1435 cells, cell proliferation and killing of cytotoxic T lymphocytes (CTLs) on NSCLC cells were evaluated. Xenograft mouse models were prepared to validate the in vivo effect of E2. E2 activated SIRT1 by up-regulating the expression of ERβ and thereby weakened the killing of CTLs on NSCLC cells. E2 elevated PD-L1 by up-regulating the ERβ/SIRT1 axis to promote the immune escape of NSCLC cells. SIRT1 degraded FOXO3a by reducing the acetylation level of FOXO3a and increased its ubiquitination. E2 inhibited the expression of FOXO3a and elevated PD-L1 expression, thereby promoting the immune escape of NSCLC cells. In vivo results showed that E2 facilitated the growth and metastasis of NSCLC cells in nude mice by elevating ERβ via SIRT1/FOXO3a/PD-L1 axis. In summary, our data revealed the critical roles of E2/ERβ/SIRT1/FOXO3a/PD-L1 axis in the immune escape of NSCLC cells and suggested that the axis may be promising therapeutic targets for NSCLC.Thiram, a well-known sulfur containing organic compound is frequently and extensively used in agriculture because of high biological activity to control different pests. In certain cases, due to long persistence in the environment pesticides and other environmental contaminants induce undesirable toxic impacts to public health and environment. To ascertain the potential mechanisms of toxicity of thiram on different immune organs of broilers, a total of 100 one-day-old chicks were obtained and randomly divided into two groups including thiram group (50 mg/kg) and untreated control group. Thymus and spleen tissues were collected at the age of 14 days from the experimental birds. At necropsy level, thymus was congested, enlarged and hyperemic while spleen had no obvious lesions. The results on mechanisms (apoptosis and autophagy) of immunotoxicity showed significantly increased expression of bax, caspase3, cytc, ATG5, beclin1 and p62 in spleen of treated mice. Results indicated significantly decreased expression of m-TOR and bcl2 to activate apoptosis and autophagy. The expressions of bax, p53 and m-TOR were up-regulated in the thymus while the expressions of ATG5 and Beclin1 were down-regulated to mediate cell apoptosis and inhibit autophagy. The results on different metabolome investigation showed that the sphingolipid metabolism in the thymus of chicks exposed to thiram was disrupted resulting in up-regulation of metabolites related to cell membrane components such as SM, galactosylceramide and lactosylceramide. The results of our experimental research suggest that thiram can interfere with the sphingolipid metabolism in thymus and angiogenesis, inhibit the proliferation of vascular endothelial cells to induce potential toxic effects in chicken.

Status epilepticus (SE) is a continuous episode of seizures which leads to hippocampal neurodegeneration, severe systemic inflammation, and extreme damage to the brain. Modafinil, a psychostimulant and wake-promoting agent, has exerted neuroprotective and anti-inflammatory effects in previous preclinical studies. The aim of this study was to assess effects of modafinil on the lithium-pilocarpine-induced SE rat model and to explore possible involvement of tumor necrosis factor-α (TNF-α) and nitric oxide (NO) pathways in this regard.

Status epilepticus was provoked by injection of lithium chloride (127 mg/kg, intraperitoneally [i.p]) and pilocarpine (60 mg/kg, i.p.) in rats. Animals received different modafinil doses (50, 75, 100, and 150 mg/kg, i.p.) and SE scores were documented over 3 hours of duration. Moreover, the role of the nitrergic pathway in the effects of modafinil was evaluated by injection of the non-selective NO synthase (NOS) inhibitor L-N

-Nitro arginine methyl ester (L-NAME, 10 mg/kg, i.pffects of modafinil in the lithium-pilocarpine-induced SE rat model via possible involvement of TNF-α and nitrergic pathways.

Pharmacoresistant bilateral mesial temporal lobe epilepsy often implies poor resective surgical candidacy. Low-frequency stimulation of a fiber tract connected to bilateral hippocampi, the fornicodorsocommissural tract, has been shown to be safe and efficacious in reducing seizures in a previous short-term study. Here, we report a single-blinded, within-subject control, long-term deep-brain stimulation trial of low-frequency stimulation of the fornicodorsocommissural tract in bilateral mesial temporal lobe epilepsy. Outcomes of interest included safety with respect to verbal memory scores and reduction of seizure frequency.

Our enrollment goal was 16 adult subjects to be randomized to 2-Hz or 5-Hz low-frequency stimulation of the fornicodorsocommissural tract starting at 2 mA. The study design consisted of four two-month blocks of stimulation with a 50%-duty cycle, alternating with two-month blocks of no stimulation.

We terminated the study after enrollment of five subjects due to slow accrual. Fornicodorsocommissural tract, efficacy of low-frequency stimulation in reducing seizures, and safety as regards verbal memory.Older adults often present difficulties understanding speech that cannot be explained by age-related changes in sound audibility. Psychoacoustic and electrophysiologic studies have linked these suprathreshold difficulties to age-related deficits in the auditory processing of temporal and spectral sound information. These studies suggest the existence of an age-related temporal processing deficit in the central auditory system, but the existence of such deficit in the spectral domain remains understudied. The FFR is an electrophysiological evoked response that assesses the ability of the neural auditory system to reproduce the spectral and temporal patterns of a sound. The main goal of this short review is to investigate if the FFR can identify and measure spectral processing deficits in the elderly compared to younger adults (for both, without hearing loss or competing noise). Furthermore, we want to determine what stimuli and analyses have been used in the literature to assess the neural encoding of spectrals, with possible applications in the field of hearing aid fitting.This study examines the impact that pharmaceutical innovation, which accounts for most private biomedical research expenditure, has had on longevity. We perform two types of two-way fixed-effects analyses, which control for the effects of many potentially confounding variables. First, we analyze long-run (2006-2018) changes in longevity associated with different diseases in a single country the U.S. Then, we analyze relative longevity levels associated with different diseases in 26 high-income countries during a single time period (2006-2016). The measure of longevity we analyze, mean age at time of death, is strongly positively correlated across countries with life expectancy at birth. The measure of pharmaceutical innovation we use is the mean vintage (year of initial world launch) of the drugs used to treat each disease in each country. Changes in the vintage distribution of drugs are due to both entry of new drugs and exit of old drugs. Our analysis of U.S. data indicates that the diseases for which thereve.

Childhood maltreatment increases the risk of depression, especially after experiencing a stressful life event, such as bereavement. Employing emotion regulation strategies can mitigate the impact childhood maltreatment has on depression later in life following the loss of a spouse.

We evaluated how cognitive reappraisal and expressive suppression moderated the impact of childhood maltreatment and depressive symptoms following spousal bereavement.

We examined 130 bereaved individuals 3months after the death of a spouse, 4months after the death of a spouse, and 6months after the death of a spouse.

We utilized a mixed model approach to test the interaction between childhood maltreatment and cognitive reappraisal and between childhood maltreatment and expressive suppression to predict depressive symptoms across 3 time points.

Cognitive reappraisal moderated the relationship between childhood maltreatment and depressive symptoms (b=-0.17,p=.003); expressive suppression did not (b=0.06,p=.452). Participan future interventions for individuals experiencing a stressful life event.Dysfunction of the cholinergic basal forebrain (BF) neurotransmitter system, including cholinergic axon denervation of the cortex, plays an important role in cognitive decline and dementia. A validated method to directly quantify cortical cholinergic terminal integrity enables exploration of the involvement of this system in diverse cognitive profiles associated with dementia, particularly at a prodromal stage. In this study, we used the radiotracer [18F]-fluoroethoxybenzovesamicol (FEOBV) as a direct measure of cholinergic terminal integrity and investigated its value for the assessment of cholinergic denervation in the cortex and associated cognitive deficits. Eighteen participants (8 with mild cognitive impairment (MCI) and 10 cognitively unimpaired controls) underwent neuropsychological assessment and brain imaging using FEOBV and [18F]-florbetaben for amyloid-β imaging. The MCI group showed a significant global reduction of FEOBV retention in the cortex and in the parietal and occipital cortices specifically compared to the control group.