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Garrison Wooten opublikował 1 rok, 3 miesiące temu
These genes were mainly involved in extracellular matrix composition, collagen fibril organization, protein digestion and absorption. Additionally, insulin-related signaling pathways were affected. The clinical analysis indicated that insulin resistance is associated with the diabetic ED severity. Notably, the bioinformatics analysis also suggested that ferroptosis pathway was elevated under the diabetic ED condition. Conclusion The impaired protein synthesis induced by deficient insulin signaling is probably an important cause of the diabetic ED. The improvement of protein synthesis through restoring insulin function may be potentially useful for diabetic ED therapy.Heart failure is a major contributor to global morbidity and mortality burden affecting approximately 1-2% of adults in developed countries, mounting to over 10% in individuals aged >70 years old. Heart failure is characterized by a prothrombotic state and increased rates of stroke and thromboembolism have been reported in heart failure patients compared with the general population. However, the impact of antithrombotic therapy on heart failure remains controversial. Administration of antiplatelet or anticoagulant therapy is the obvious (and well-established) choice in heart failure patients with a cardiovascular comorbidity that necessitates their use, such as coronary artery disease or atrial fibrillation. In contrast, antithrombotic therapy has not demonstrated any clear benefit when administered for heart failure per se, i.e. with heart failure being the sole indication. Randomized studies have reported decreased stroke rates with warfarin use in patients with heart failure with reduced left ventricular ejection fraction, but at the expense of excessive bleeding. Non-vitamin K oral anticoagulants have shown a better safety profile in heart failure patients with atrial fibrillation compared with warfarin, however, current evidence about their role in heart failure with sinus rhythm is inconclusive and further research is needed. In the present review we discuss the role of antithrombotic therapy in heart failure (beyond coronary artery disease), aiming to summarize evidence regarding the thrombotic risk and the role of antiplatelet and anticoagulant agents in patients with heart failure.Alzheimer’s disease (AD) is a chronic neurodegenerative disorder that is marked by cognitive dysfunctions and existence of neuropathological hallmarks such as amyloid plaques, and neurofibrillary tangles. It has been observed that a persistent immune response in the brain has appeared as another neuropathological hallmark in AD. The persistent activation of the microglia, the brain’s resident macrophages, and other immune cells has been shown to aggravate both tau and amyloid pathology and may consider as a connection in the AD pathogenesis. However, the basic mechanisms that link immune responses in the pathogenesis of AD are unclear until now since the process of neuroinflammation can have either a harmful or favorable effect on AD, according to the phase of the disease. Numerous researches recommend that nutritional fruits, as well as vegetables, possess neurodefensive properties against the detrimental effects of neuroinflammation and aging. Moreover, these effects are controlled by diverse phytochemical compounds that are found in plants and demonstrate anti-inflammatory, neuroprotective as well as other beneficial actions. In this review, we focus on the link of neuroinflammation in AD as well as highlight the probable mechanisms of alkaloidal phytochemicals to combat neuroinflammatory aspect of AD.Nanosized particles, with a size of less than 100 nm, have a wide variety of applications in various fields of nanotechnology and biotechnology, especially in the pharmaceutical industry. Metal nanoparticles [MNPs] have been synthesized by different chemical and physical procedures. Still, the biological approach or green synthesis [phytosynthesis] is considered as a preferred method due to eco-friendliness, nontoxicity, and cost-effective production. Various plants and plant extracts have been used for the green synthesis of MNPs, including biofabrication of noble metals, metal oxides, and bimetallic combinations. Biomolecules and metabolites present in plant extract cause the reduction of metal ions into nanosized particles by one-step preparation methods. MNPs have remarkable attractiveness in biomedical applications for their use as potential antioxidant, anticancer and antibacterial agents. The present review offers a comprehensive aspect of MNPs production via top-to-bottom and bottom-to-top approach with considerable emphasis on green technology and their possible biomedical applications. The critical parameters governing the MNPs formation by plant-based synthesis are also highlighted in this review.Aims A review of analytical methods for the determination of hypericin in foods, herbal, biological and pharmaceutical matrices. Background Hypericin (HYP) is naturally-occurring pigment obtained from some plants of the genus Hypericum. Although HYP has been known for many years, it has recently attracted attention due to its varied biological properties, such as anti-inflammatory and antidepressant activity and it is also an efficient photosensitizer. Objective The objective of this review is to provide insights about the physicochemical properties of HYP, as well as to report the analytical methods existing in the literature and official compendia for different matrices. Methods The survey data were collected by Google Scholar® and Scopus® using keys terms. Result Analytical methods involving HYP are mainly concerned with the quality control of pharmaceutical preparations, foods, beverages, biological samples and drug delivery systems using different types of analysis methods. Some difficulties have been also identified due to physicochemical properties of HYP. It presents great solubility in alkaline solutions, organic bases and common polar organic solvents. Conclusion It can be analyzed by thin layer chromatography, spectrophotometry in the ultraviolet region, but the most commonly used method is by HPLC. HYP presents monographs in the American, British and European Pharmacopoeias, however the methods of analysis are not yet harmonized.Cytomegalovirus is the classic opportunistic infection after solid organ transplantation. This review will discuss updates and future directions in the diagnosis, prevention and treatment of CMV infection in solid organ transplant recipients. Antiviral prophylaxis and pre-emptive therapy are the mainstays of CMV prevention, but they should not be mutually exclusive and each strategy should be considered depending on a specific situation. The lack of a widely applicable viral load threshold for diagnosis and preemptive therapy is emphasized as a major factor that should pave way for individualized approach to prevention. Valganciclovir and intravenous ganciclovir remain as drugs of choice for CMV management, and strategies for managing drug-resistant CMV infection are enumerated. There is increasing use of CMV-specific cell-mediated immune assays to stratify the risk of CMV infection after solid organ transplantation, and their potential role in optimizing CMV prevention and treatment efforts is discussed.Turner’s or Turner syndrome (TS) is the most prevalent chromosomal abnormality in female live births. Patients with TS are predisposed to increased risk of cardiovascular disease (CVD), mainly due to the frequently observed congenital structural cardiovascular defects, such as valvular and aortic abnormalities (coarctation, dilatation and dissection). The increased prevalence of cardiometabolic risk factors, such as arterial hypertension, insulin resistance, diabetes mellitus, dyslipidaemia, central obesity and increased carotid intima-media thickness, also contribute to increased morbidity and mortality in TS patients. Menopausal hormone therapy (MHT) is the treatment of choice, combined with growth hormone (GH). Although MHT may, in general, ameliorate CVD risk factors, its effect on CVD mortality in TS has not yet been established. The exact effect of GH on these parameters has not yet been clarified. Specific consideration should be provided in TS cases during pregnancy, due to the higher risk of CVD complications, such as aortic dissection. Optimal cardiovascular monitoring, including physical examination, electrocardiogram, CVD risk factor assessment and transthoracic echocardiography is recommended. Moreover, cardiac magnetic resonance from the age of 12 years is recommended due to the high risk of aortic aneurysm and other anatomical vascular complications.Aims To develop an oral delivery system of glucagon-like peptide 1 (GLP-1)(28-36) for treating Type-2 Diabetes, B.S-GLP-1(28-36), a recombinant Bacillus subtilis spores transformed with a plasmid vector encoding five consecutive GLP-1 (28-36) nonapeptides with an enterokinase site was constructed. Methods and results GLP-1(28-36) nonapeptide was successfully expressed on the surface of B. subtilis spores and validated by western blot and immunofluorescence. The therapeutic effect of oral administration of B.S-GLP-1 (28-36) spores was evaluated in type 2 diabetic model mice. The efficacy of recombinant spores was examined for a period of 13 weeks after oral administration in diabetic mice. At the end of the sixth week, diabetic mice with oral administration of BS-GLP-1 (28-36) spores showed decreased blood glucose levels from 2.4×102 mol l-1 to 1.7×102 mol l-1 . By the ninth week, the mean fasting blood glucose level in the experimental group was significantly lower than that in the control group 30 min after injection of pyruvate. At the end of the tenth week of oral administration, the blood glucose of the experimental group was significantly lower than that of the control group after intraperitoneal injection of glucose. By the twelfth week, fasting blood glucose level and fasting insulin level were measured in all mice, the results showed that the recombinant spores increased the insulin sensitivity of mice. Conclusions The results of pathological observation showed that the recombinant spores also had a certain protective effect on the liver and islets of mice, and the content of GLP-1 (28-36) in the pancreas of the experimental group was increased. Significance and impact of study The results of this study revealed that GLP-1 (28-36) nonapeptides can reduce blood glucose and play an important role in the treatment of type 2 diabetes.Hepatocellular carcinoma (HCC) is a highly heterogeneous liver cancer with significant male biases in incidence, disease progression, and outcomes. Previous studies have suggested that genes on the Y chromosome could be expressed and exert various male-specific functions in the oncogenic processes. In particular, the RNA-binding motif on the Y chromosome (RBMY) gene is frequently activated in HCC and postulated to promote hepatic oncogenesis in patients and animal models. In the present study, immunohistochemical analyses of HCC specimens and data mining of The Cancer Genome Atlas (TCGA) database revealed that high-level RBMY expression is associated with poor prognosis and survival of the patients, suggesting that RBMY could possess oncogenic properties in HCC. To examine the immediate effect(s) of the RBMY overexpression in liver cancer cells, cell proliferation was analyzed on HuH-7 and HepG2 cells. The results unexpectedly showed that RBMY overexpression inhibited cell proliferation in both cell lines as its immediate effect, which led to vast cell death in HuH-7 cells.


