sildenafil (Liqrev)

Cordyceps militaris polysaccharides alleviate hyperglycemia in type 2 diabetes mellitus mice by modulating gut microbiota.

Wu Na N, Hu Wenke W, Xu Xinru X, Yin Shuai S et al.

Type 2 diabetes mellitus (T2DM) involves pancreatic dysfunction and hyperglycemia, leading to hepatic impairment and gut dysbiosis. Cordyceps militaris (C. militaris) possesses polysaccharides (CMP) with hypoglycemic and hypolipidemic effects. However, the potential of C. militaris to reconfigure gut microecology in T2DM remains inadequately explored. This study assessed the therapeutic effects of CMP on glucose homeostasis and microbial composition using a high-sugar and high-fat diet combined with streptozotocin-induced T2DM in a mouse model. Structural characterization identified CMP as a heteropolysaccharide with a molecular weight of 26,336 Da, predominantly composed of mannose (49.27%) and galactose (42.13%) connected by →6)-α-Manp-(1→ glycosidic bonds. Results indicated that a four-week CMP intervention significantly alleviated hyperglycemic symptoms, evidenced by marked reductions in fasting blood glucose (FBG), the area under the curve (AUC) of the oral glucose tolerance test (OGTT), and glycated serum protein (GSP). CMP administration notably enhanced insulin sensitivity and pancreatic function, as reflected in HOMA-IS, HOMA-IR, and HOMA-β indices. Additionally, lipid profiles in both serum and liver were normalized. The high-dose group (CMP-H) exhibited greater efficacy than the low-dose group (CMP-L). High-throughput sequencing analysis revealed that CMP effectively rebalanced gut microbiota by modulating the Bacillota/Bacteroidetes ratio and suppressing the proliferation of harmful taxa, specifically Adlercreutzia and Intestinimonas. Correlation analysis highlighted two microbial markers, Anaerotruncus and Enterocloster, which demonstrated robust negative correlations with lipid parameters (serum TC and liver LDL-c) and strong positive associations with pancreatic function indices. Collectively, these findings suggest that CMP alleviates T2DM symptoms by modulating the gut microbiota and restoring metabolic homeostasis.

Elucidate the quantitative early diagnostic indicators of mild chondromalacia patella: ratios of trochlear sulcus angle to patellar and trochlear widths.

Wang Haoxian H, Chen Zhian Z, Cao Zijian Z, Xiao Jie J et al.

Chondromalacia patella (CMP) is often exacerbated by anatomical variations in patellofemoral engagement, and there are currently no sensitivity early diagnostic indicators for mild CMP. This study focused on the relationship between normal patellofemoral joint parameters and mild CMP, aiming to provide a more accurate scientific basis for the early diagnosis and treatment of CMP by studying new quantitative ratios as early diagnostic indicators. The study involved 100 patients with mild CMP (modified Noyes grade 1 and 2A) and 100 healthy volunteers (controls) who underwent imaging from 1/4/2023 to 1/4/2024. Magnetic resonance imaging and T2 mapping were performed to measure the trochlear sulcus angle (TSA), lateral trochlear inclination (LTI), trochlear depth (TD), trochlear width (TW), patellar width (PW), trochlear length(TL), patellar length(PL), patella-patellar tendon angle(P-PTA), and quadriceps-patellar tendon angle(Q-PA). Differences in demographics and all measurements between the mild CMP group and the control group were detected. Novel composite ratios integrating trochlear morphology and patellofemoral engagement were established for mild CMP diagnosis. Univariate and multivariate logistic regression (adjusted for sex, age, side, height, weight, BMI) identified significant predictors. Receiver operating characteristic (ROC) curve of the participants was analyzed to describe the accuracy of each diagnostic test using the area under the curve (AUC). The ability of TSA, LTI, TD, and six different ratios to predict mild CMP was evaluated by calculating the odds ratio (OR), sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) for each measurement. There was no significant difference in demographic characteristics between the two groups. Patients with mild CMP exhibited notable alterations in trochlear morphology and patellofemoral engagement parameters compared with controls. Among the evaluated imaging indicators, the composite ratios integrating trochlear sulcus angle with patellar and trochlear morphology demonstrated superior performance for the early identification of mild CMP. After adjustment for demographic variables, the ratio of trochlear sulcus angle to trochlear width (TSA/TW) remained the most robust independent diagnostic factor. Furthermore, ROC analysis demonstrated that TSA/TW provided the highest diagnostic accuracy and outperformed traditional imaging thresholds and other composite ratios in distinguishing mild CMP. The composite ratio TSA/TW is a potent independent early diagnostic factor of mild CMP, demonstrating superior diagnostic accuracy over traditional methods This ratio-based approach shows significant potential to improve early diagnosis of patellofemoral degeneration.

One-month suspension for spendthrift vet.

Loeb Josh J

Transient HA-100 exposure improves aggregate uniformity and cell-cell contact stability in suspension human pluripotent stem cell cultures.

Khurana Preeti P, Azad Amar J AJ, Kolundzic Nikola N, Liovic Mirjana M et al.

Human pluripotent stem cell (hPSC) manufacturing workflows frequently rely on suspension aggregation, yet inter-line and batch-to-batch variability in aggregate formation can compromise process consistency and downstream differentiation performance. We evaluated whether a short exposure to HA-100, a small-molecule inhibitor of protein kinase A and protein kinase C signaling, could be used as an upstream process intervention to improve aggregate uniformity without compromising hPSC identity or developmental competence. Nine hPSC lines, including human embryonic stem cell and induced pluripotent stem cell lines, were examined in suspension culture. HA-100 was applied during the first 24 h of aggregation. Aggregate morphology and size distribution were assessed across lines. To investigate the cellular basis of this effect, we generated an mCherry-TJP1 reporter hESC line, which enabled live visualization of junction dynamics, including responses under calcium-depleted conditions and recovery of transepithelial electrical resistance. HA-100 treatment promoted more compact and spherical aggregates, increased aggregate size into a narrower range across lines, and reduced overall variability relative to medium alone. Across the nine-line panel, HA-100-treated aggregates fell within an empirically definesd size range of 25.37-33.95 x 10^-4 mm^3 after 24 h of suspension culture, providing a practical benchmark for process monitoring. In calcium-depleted conditions, HA-100 delayed disruption of intercellular contacts and accelerated recovery of transepithelial electrical resistance, consistent with improved junctional resilience. Transient exposure to HA-100 did not abolish pluripotency marker expression or tri-lineage differentiation capacity. These data support HA-100 as a practical upstream intervention to reduce aggregate heterogeneity in suspension hPSC cultures and improve reproducibility in manufacturing-oriented workflows requiring consistent aggregation.