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Timm Boyer opublikował 1 rok, 8 miesięcy temu
The proposed modeling approach shows a good patient-specific response and appears to be potentially useful in clinical practice. However, this approach needs to be evaluated in a larger cohort of patients and could possibly be improved through more accurate oscillometric BP measurement methods.
Cardiac auscultation skills have proven difficult to train and maintain. The authors investigated whether using phonocardiograms as visual adjuncts to audio cases improved first-year medical students’ cardiac auscultation performance.
The authors randomized 135 first-year medical students using an email referral link in 2018 and 2019 to train using audio-only cases (audio group) or audio with phonocardiogram tracings (combined group). Training included 7cases with normal and abnormal auscultation findings. The assessment included feature identification and diagnostic accuracy using 14audio-only cases, 7presented during training, and 7alternate versions of the same diagnoses. The assessment-administered immediately after training and repeated 7days later-prompted participants to identify the key features and diagnoses for 14audio-only cases. Key feature scores and diagnostic accuracy were compared between groups using repeated measures ANOVA.
Mean key feature scores were statistically significantly higher in the combined group (70%, 95% CI 67-75%) compared to the audio group (61%, 95% CI 56-66%) (F(1,116) = 6.144, p = 0.015, d
= 0.45). Similarly, mean diagnostic accuracy in the combined group (68%, 95% CI 62-73%) was significantly higher than the audio group, although with small effect size (59%, 95% CI 54-65%) (F(1,116) = 4.548, p = 0.035, d
= 0.40). Time on task for the assessment and prior auscultation experience did not significantly impact performance on either measure.
The addition of phonocardiograms to supplement cardiac auscultation training improves diagnostic accuracy and heart sound feature identification amongst novice students compared to training with audio alone.
The addition of phonocardiograms to supplement cardiac auscultation training improves diagnostic accuracy and heart sound feature identification amongst novice students compared to training with audio alone.The number of cancer survivors is expected to rise to up to 20 million by 2026. It is of utmost importance that nurses who provide survivorship care enhance their knowledge and skills to meet the needs of cancer survivors. The purpose of this project is to propose a pilot evidence-based educational project to incorporate the concept and framework of the survivorship care plan for nursing students. We evaluated feedback from nursing students for their knowledge and attitude on cancer survivorship care. A pilot educational project was given to 38 undergraduate students and 17 graduate students. Pre- and post-test feedback were collected from these students. Content analysis was used to analyze the data. At least 60% of both undergraduate and graduate nursing students had experience in either adult or pediatric oncology units. Only 11% of undergraduate and 18% of graduate students reported awareness of survivorship care plans. However, all of the students believed the survivorship care plan will be helpful for cancer patients. We recommend that it is imperative to incorporate the concept of cancer survivorship in the early stage of nursing education.
Hyperinsulinaemia and insulin resistance (IR) are strongly associated with obesity and are forerunners of type 2 diabetes. Little is known about metabolic alterations separately associated with obesity, hyperinsulinaemia/IR and impaired glucose tolerance (IGT) in adolescents.
To identify metabolic alterations associated with obesity, hyperinsulinaemia/IR and hyperinsulinaemia/IR combined with IGT in obese adolescents.
81 adolescents were stratified into four groups based on body mass index (lean vs. obese), insulin responses (normal insulin (NI) vs. high insulin (HI)) and glucose responses (normal glucose tolerance (NGT) vs. IGT) after an oral glucose tolerance test (OGTT). The groups comprised (1) healthy lean with NI and NGT, (2) obese with NI and NGT, (3) obese with HI and NGT, and (4) obese with HI and IGT. Targeted nuclear magnetic resonance-based metabolomics analysis was performed on fasting and seven post-OGTT plasma samples, followed by univariate and multivariate statistical analyses.
Two groups of metabolites were identified (1) Metabolites associated with insulin response level adolescents with HI (groups 3-4) had higher concentrations of branched-chain amino acids and tyrosine, and lower concentrations of serine, glycine, myo-inositol and dimethylsulfone, than adolescents with NI (groups 1-2). (2) Metabolites associated with obesity status obese adolescents (groups 2-4) had higher concentrations of acetylcarnitine, alanine, pyruvate and glutamate, and lower concentrations of acetate, than lean adolescents (group 1).
Obesity is associated with shifts in fat and energy metabolism. Hyperinsulinaemia/IR in obese adolescents is also associated with increased branched-chain and aromatic amino acids.
Obesity is associated with shifts in fat and energy metabolism. Hyperinsulinaemia/IR in obese adolescents is also associated with increased branched-chain and aromatic amino acids.Rab-like 3 (RABL3) is a member of Rab family that is related with several kinds of cancers. However, the functional roles of RABL3 in oral squamous cell carcinoma (OSCC) remain largely unknown. In the current study, we examined the expression levels of RABL3 in OSCC tissues and cell lines. The results showed that RABL3 expression was markedly increased in OSCC tissues and cell lines. Knockdown of RABL3 significantly suppressed the proliferation, migration and invasion of OSCC cells. Overexpression of RABL3 exhibited opposite effects with RABL3 knockdown. In vivo assay demonstrated that knockdown of RABL3 suppressed the tumorigenesis of OSCC. Moreover, RABL3 regulated the activation of focal adhesion kinase (FAK)/protein kinase B (Akt) signaling pathway in OSCC cells. Inhibition of FAK reversed the effects of RABL3 overexpression on cell proliferation, migration and invasion of OSCC cells. In conclusion, these findings demonstrated that RABL3 acted as an oncogene in OSCC, which was attributed to the regulation of FAK/Akt pathway. Thus, RABL3 may be potential therapeutic target for the treatment of OSCC.
Congenital myasthenic syndrome (CMS) is a heterogeneous group of rare disorders with impaired neuromuscular transmission caused by genetic defects, which is characterized by fatigable muscle weakness.
Herein, we report a case of limb-girdle CMS (LG-CMS) in a 15-year-old Chinese girl with limb weakness and mild ptosis. The patient presented with well-defined clinical manifestations, muscle imaging, and electrophysiological features associated with CMS. On muscle biopsy, in addition to tubular aggregates identified, an extremely unusual pathological change of rimmed vacuoles in muscle fibers was observed. Whole-exome sequencing disclosed two novel heterozygous variants (c.14T>A and c.581T>C) in the human glutamine-fructose-6-phosphate transaminase 1 (GFPT1) gene, leading to the substitutions of phenylalanine to tyrosine (p.F5Y) and serine (p.F194S), respectively. Both variants were predicted to be likely pathogenic by SIFT, Polyphen-2, and Mutation Taster. Treatments with pyridostigmine bromide and albuterol produced a dramatic improvement.
Collectively, molecular genetic analysis and muscle biopsy play crucial roles in the diagnosis of GFPT1-related LG-CMS with rimmed vacuoles (a rare phenotype of CMS) and have important implications for treatment decision.
Collectively, molecular genetic analysis and muscle biopsy play crucial roles in the diagnosis of GFPT1-related LG-CMS with rimmed vacuoles (a rare phenotype of CMS) and have important implications for treatment decision.
Scarce data are available regarding the proportion of drugs that have provoked new-onset seizures. The aim of this study was to investigate the types of causative drugs of drug-induced new-onset seizures in a relatively large population of patients who were admitted to our epilepsy monitoring unit.
Using a hospital-based database, patients with new-onset seizures were selected and the underlying etiology of new-onset seizures was reviewed. Based on the etiologic conditions, acute symptomatic seizure was classified into 7 groups of provocation factors drug, alcohol, encephalitis, stroke, hypoxic injury, metabolic, and unclassified. Causative drugs for new-onset seizures were further investigated.
Altogether, 363 patients with new-onset seizures were reviewed in this study. The most common cause of new-onset seizures was epilepsy, followed by syncope, acute symptomatic seizure, and others. Drugs were found to be the most common provocation factor for acute symptomatic seizures. The most common causative drug was antihistamine, followed by stimulants, antibiotics, and other drugs. Most patients with antihistamine-induced seizures had normal renal function and were under treatment at the therapeutic dose.
In our population, antihistamine accounted for the highest proportion of drug-induced seizures. Considering that antihistamines are widely used as over-the-counter drugs around the world, they should be considered a possible cause of new-onset seizures.
In our population, antihistamine accounted for the highest proportion of drug-induced seizures. Considering that antihistamines are widely used as over-the-counter drugs around the world, they should be considered a possible cause of new-onset seizures.
This study investigated the characteristics of double-seropositive myasthenia gravis (DSP-MG) in southern China for disease subtype classification.
A case-control study was carried out in which the characteristics of DSP-MG patients (n= 17) were compared to those of muscle-specific tyrosine kinase antibody-positive (MuSK)-MG and acetylcholine receptor antibody-positive (AChR)-MG patients (n= 8 and 27, respectively). We also performed a literature review of DSP-MG patients.
Compared to AChR-MG, DSP-MG had greater bulbar dysfunction (47.1% vs 18.6%, P= 0.04), higher incidence of myasthenia crisis (41.2% vs 14.8%, P = 0.04), more severe Myasthenia Gravis Foundation of America classification at maximum worsening, greater autoantibody abnormalities (70.6% vs 33.3%, P= 0.015), greater need for immunosuppressant treatment (58.8% vs 3.7%, P< 0.001), and worse prognosis with less remission (11.8% vs 55.6%, P= 0.001). There were no differences between DSP-MG and MuSK-MG patients. DSP-MG described in published reports was comparable to MuSK-MG.
DSP-MG in southern China may be a subtype of MuSK-MG.
DSP-MG in southern China may be a subtype of MuSK-MG.Coronary microvascular dysfunction (CMD) is defined as a mismatch of myocardial blood supply and oxygen consumption due to a dysfunction of the coronary microvessels. Up to 20-30% of patients with CMD have progressive worsening of symptoms with significant impairment of quality of life. Large-scale randomized studies of the pharmacologic treatment of CMD are lacking. Classic anti-ischemic drugs are the initial form of treatment, but efficacy is often limited. Ranolazine has a unique mechanism of action that does not affect blood pressure or heart rate. When added to existing anti-anginal agents, ranolazine improved at least one domain in eight of ten studies in which a questionnaire was used to assess patient health status. Five studies evaluated coronary arterial flow reserve (CFR), reporting that patients with low values had significant improvement in CFR and suggesting that those with more severe CMD respond more favorably to ranolazine. In two studies, exercise duration and time to myocardial ischemia were significantly increased after treatment with ranolazine.


