Microbiome composition and turnover in the face of complex lifecycles and bottlenecks: insights through the study of dung beetles.

Unlabelled: Microbiome composition and function often change throughout a host's life cycle, reflecting shifts in the ecological niche of the host. The mechanisms that establish these relationships are therefore important dimensions of host ecology and evolution; yet, their nature remains poorly understood. Here, we sought to investigate the microbial communities associated with the complex life cycle of the dung beetle and the relative contributions of host life stage, sex, and environment in determining microbiome assembly.

crANKing up the infection: ankyrin domains in and their role in host manipulation.

Intracellular bacteria use secreted effector proteins to modify host biology and facilitate infection. For many of these microbes, a particular eukaryotic domain-the ankyrin repeat (ANK)-plays a central role in specifying the host proteins and pathways targeted by the microbe. While we understand much of how some ANKs function in model organisms like and , the understudied species harbor many proteins with ANKs, some of which play critical roles during infection.

The Association of Psychotherapy With Burnout, Depression, and Measures of Well-Being in Residents and Fellows: A Pilot Study.

Purpose: Resident physicians experience high rates of burnout and depression but rarely prioritize their well-being or seek mental health care. The Accreditation Council for Graduate Medical Education mandated that training programs prioritize resident wellness and emotional and mental health to ensure readily available and accessible mental health care. To help meet that requirement and circumvent barriers to accessing care, the University of California San Diego Healer Education Assessment & Referral (HEAR) Program offers residents and fellows short-term therapy for coping with challenges that threaten their well-being.

Time-Restricted Feeding Attenuates Metabolic Dysfunction-Associated Steatohepatitis and Hepatocellular Carcinoma in Obese Male Mice.

Metabolic dysfunction-associated steatotic liver disease (MASLD) has surpassed the hepatitis B virus and hepatitis C virus as the leading cause of chronic liver disease in most parts of the Western world. MASLD (formerly known as NAFLD) encompasses both simple steatosis and more aggressive metabolic dysfunction-associated steatohepatitis (MASH), which is accompanied by inflammation, fibrosis, and cirrhosis, and ultimately can lead to hepatocellular carcinoma (HCC). There are currently very few approved therapies for MASH.

The Wolbachia WalE1 effector alters Drosophila endocytosis.

The most common intracellular bacterial infection is Wolbachia pipientis, a microbe that manipulates host reproduction and is used in control of insect vectors. Phenotypes induced by Wolbachia have been studied for decades and range from sperm-egg incompatibility to male killing. How Wolbachia alters host biology is less well understood.