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Buckley Akhtar posted an update 2 days, 2 hours ago
MACS processing was faster than FACS for either single or multiple samples. ACSA2 can be used to isolate astrocytes from both postnatal and adult brain, and is more suitable for purify astrocytes from newborn. FACS could get purer microglia which is helpful for deep sequencing and other related research. ACSA2 is a good marker of astrocytes.
To identify racial and sex disparities in the treatment and outcomes of muscle-invasive bladder cancer (MIBC) using a nationwide oncology outcomes database.
Using the National Cancer Database, we identified patients with muscle invasive bladder cancer from 2004 to 2014. selleck compound Treatments analyzed included no treatment, cystectomy, neoadjuvant chemotherapy plus cystectomy (“optimal treatment”), cystectomy plus adjuvant chemotherapy, and chemoradiation. Propensity matching compared mortality outcomes between sexes. Logistic models evaluated predictors of receiving optimal treatment, as well as mortality.
Forty seven thousand two hundred and twenty nine patients were identified. Most patients were male (73.4%) and underwent cystectomy alone (69.0%). Propensity score matching demonstrated increased 90-day mortality in women vs men (13.0% vs 11.6%, P = .009), despite adjusting for differences in treatments between sexes. Logistic regression models showed no difference in receipt of optimal treatment between sexes ( likely to receive optimal treatment and have a higher risk of 90-day mortality. Additional research is needed to determine the variables leading to worse outcomes in females and identify impediments to black patients receiving optimal treatment.Food marketing is a major contributor to high rates of obesity and diet-related disease among children. Researchers, advocates, and policymakers have called for improvements in the nutrition quality of foods marketed to children to improve children’s health. In the United States, for over 10 years, the food and beverage industry has responded with self-regulatory initiatives, touting the success of these efforts. However, public health researchers have documented very limited improvements. As a product of conference proceedings, we briefly summarize US self-regulation of food and beverage marketing to children, argue that reliance on industry self-regulation limits meaningful change, and explain why existing food companies cannot market truly healthy foods to children. After over a decade of self-regulation, industry continues to exploit loopholes and bombard children with marketing for foods that can negatively impact their health. Still, the political will to advocate for effective government regulation remains a challenge. Shifts in parents’ attitudes toward supporting policies to protect children from food marketing and local government actions to improve the food environment are promising indicators of increasing demand for action. However, sustained and well-publicized research and advocacy are necessary to generate broader support to enact such policies at the state and federal level in order to effectively address this public health crisis.
Endoscopy is essential for disease assessment in ulcerative colitis (UC), but subjectivity threatens accuracy and precision. We aimed to pilot a fully automated video analysis system for grading endoscopic disease in UC.
A developmental set of high-resolution UC endoscopic videos were assigned Mayo endoscopic scores (MESs) provided by 2 experienced reviewers. Video still-image stacks were annotated for image quality (informativeness) and MES. Models to predict still-image informativeness and disease severity were trained using convolutional neural networks. A template-matching grid search was used to estimate whole-video MESs provided by human reviewers using predicted still-image MES proportions. The automated whole-video MES workflow was tested using unaltered endoscopic videos from a multicenter UC clinical trial.
The developmental high-resolution and testing multicenter clinical trial sets contained 51 and 264 videos, respectively. The still-image informative classifier had excellent performance with a sensitivity of 0.902 and specificity of 0.870. In high-resolution videos, fully automated methods correctly predicted MESs in 78% (41 of 50, κ= 0.84) of videos. In external clinical trial videos, reviewers agreed on MESs in 82.8% (140 of 169) of videos (κ= 0.78). Automated and central reviewer scoring agreement occurred in 57.1% of videos (κ= 0.59), but improved to 69.5% (107 of 169) when accounting for reviewer disagreement. Automated MES grading of clinical trial videos (often low resolution) correctly distinguished remission (MES 0,1) versus active disease (MES 2,3) in 83.7% (221 of 264) of videos.
These early results support the potential for artificial intelligence to provide endoscopic disease grading in UC that approximates the scoring of experienced reviewers.
These early results support the potential for artificial intelligence to provide endoscopic disease grading in UC that approximates the scoring of experienced reviewers.Oligosaccharyltransferase (OST) complex catalyzes the N-glycosylation of nascent polypeptides in the endoplasmic reticulum. Glycoproteins are critical for normal cell-cell interactions, especially during an immune response. Abnormal glycosylation is an insignia of several inflammatory diseases. However, the mechanisms that regulate the differential N-glycosylation are not fully understood. The OST complex can be assembled with one out of two catalytic subunits, STT3A or STT3B, which have different enzymatic properties. In this work, we investigated the expression of STT3A and STT3B in several mouse models such as a crossbreeding of normal and abortion-prone mice and an intestinal inflammation model. These animals were either exposed or not to acoustic stress (acute or chronic). The expression of the isoforms was analysed by immunohistochemistry and protein immunoblot. Finally, we investigated the gene regulatory elements employing public databases. Results demonstrated that inflammation alters the balance between the expression of both isoforms in the affected tissues. In homoeostatic conditions, STT3A expression predominates over STT3B, especially in epithelial cells. This relation is reversed as a consequence of inflammation. An increase in STT3B activity was associated to the generation of mannose-rich N-glycans. Accordingly, this type of N-glycans were found to decorate diverse inflamed tissues. The STT3A and STT3B genes are differentially regulated, which could account for the differences in the expression levels observed here. Our results support the idea that these isoforms could play different roles in cellular physiology. This study opens the possibility of studying the STT3A/STT3B expression ratio as a biomarker in acute inflammation or chronic diseases.