Repeated tDCS at clinically-relevant field intensity can boost concurrent motor learning in rats.

Unlabelled: Electric fields used in clinical trials with transcranial direct current stimulation (tDCS) are small, with magnitudes that have yet to demonstrate measurable effects in preclinical animal models. We hypothesized that weak stimulation will nevertheless produce sizable effects, provided that it is applied concurrently with behavioral training, and repeated over multiple sessions. We tested this here in a rodent model of dexterous motor-skill learning.

Different PD-L1 Assays Reveal Distinct Immunobiology and Clinical Outcomes in Urothelial Cancer.

Testing for PD-L1 expression by immunohistochemistry (IHC) is used to predict immune checkpoint blockade (ICB) benefit but has performed inconsistently in urothelial cancer (UC) clinical trials. Different approaches are used for PD-L1 IHC. We analyzed paired PD-L1 IHC data on UC samples using the SP142 and 22C3 assays from the phase 3 IMvigor130 trial and found discordant findings summarized by four phenotypes: PD-L1 positive by both assays (PD-L1 double positive; PD-L1DP), PD-L1 positive by the SP142 assay only (SP142 single positive; SP142SP), PD-L1 positive by the 22C3 assay only (22C3 single positive; 22C3SP), and PD-L1 negative by both assays double negative (PD-L1 double negative; PD-L1DN).

A Threshold Technique Study to Understand Patient Preference for Smooth Versus Textured Breast Implants.

Background: Breast implant surfaces are categorized as smooth or textured. Compared with smooth implants, textured surface implants have a higher risk of breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) but may have a lower risk of capsular contracture (CC). This study aimed to quantify whether survey respondents would be willing to accept a higher risk of BIA-ALCL in exchange for the potential reported benefits of textured breast implants.

Influence of forage-to-concentrate ratio on the effects of a radiata pine bark extract on methane production and fermentation using the rumen simulation technique.

Climate change and food safety standards have intensified research into plant-based compounds as alternatives to dietary supplements in animal feed. These compounds can reduce enteric methane (CH) emissions and the formation of ruminal ammonia. This study investigated the effects of radiata pine bark extract (PBE) supplementation on CH production, ruminal fermentation parameters, and nutrient disappearance using the rumen simulation technique in diets with different forage-to-concentrate (F:C) ratios.

Glutathione, Vitamin C, and Cysteine Use in Autistic Children With Disruptive Behavior: A Double-Blind, Placebo-Controlled Crossover Pilot Study.

Objective: Autism spectrum disorder (ASD) is a complex neurodevelopmental condition characterized by social communication differences and restricted interests. One proposed biologic mechanism underlying ASD is oxidative stress, leading to the clinical use of glutathione based on anecdotal reports of improved behavior in autistic children. In this pilot study, we tested this observation using a randomized clinical trial format to collect preliminary data on glutathione safety and efficacy.