The interplay between age at menopause and synaptic integrity on Alzheimer's disease risk in women.

Menopause is a major biological transition that may influence women's late-life brain health. Earlier estrogen depletion-via earlier menopause-has been associated with increased risk for Alzheimer's disease (AD). Synaptic dysfunction also incites and exacerbates AD progression.

SSRIs reduce plasma tau and restore dorsal raphe metabolism in Alzheimer's disease.

Introduction: Tau pathology impacts neurodegeneration and cognitive decline in Alzheimer's disease (AD), with the dorsal raphe nucleus (DRN) being among the brain regions showing the earliest tau pathology. As a serotonergic hub, DRN activity is altered by selective serotonin reuptake inhibitors (SSRIs), which also have variable effects on cognitive decline and pathology in AD.

Methods: We examined N = 191 subjects with baseline F-fluorodeoxyglucose positron emission tomography and plasma biomarker data to study the effects of SSRIs on tau pathology, cognitive decline, and DRN metabolism.

Sex-specific influences of APOEε4 genotype on hippocampal neurogenesis and progenitor cells in middle-aged rats.

Background: Alzheimer's disease (AD) disproportionately and uniquely affects females, and these sex differences are further exacerbated by the presence of Apolipoprotein (APOE) ε4 alleles, the top genetic risk factor for late-onset AD. To expand our understanding about how late-onset AD risk might differentially influence males and females, this study explores how APOEε4 affects hippocampal neurogenesis and microglia, key neuroplastic markers involved in AD pathogenesis, differently by sex in middle-aged rats.

Methods: A rat model expressing the humanized (h) APOEε4 allele was characterized to examine markers of adult neurogenesis (neural progenitor cells and new-born neurons) and immune cells (microglia) in the dentate gyrus of the hippocampus in 13 month-old male and female rats.

MAPK1IP1L::TFE3-rearranged renal cell carcinoma: a novel fusion adding to the differential diagnosis of oncocytic renal neoplasms.

Beyond the more common TFE3 fusion partners PRCC, ASPSCR1, and SFPQ, additional less common fusion partners of TFE3-rearranged renal cell carcinoma (RCC) have been described. Herein, we present an example of TFE3-rearranged renal cell carcinoma harboring fusion partner MAPK1IP1L, a rare rearrangement with only one other reported tumor found in the literature. The currently reported TFE3-rearranged RCC demonstrates unique histological features compared to the previously reported tumor including dense eosinophilic cytoplasm and nuclear pseudoinclusions (corroborated by electron microscopic evaluation), with features not typically seen in other TFE3-rearranged RCCs.

Considering the interconnected nature of social identities in neuroimaging research.

Considerable heterogeneity exists in the expression of complex human behaviors across the cognitive, personality and mental health domains. It is increasingly evident that individual variability in behavioral expression is substantially affected by sociodemographic factors that often interact with life experiences. Here, we formally address the urgent need to incorporate intersectional identities in neuroimaging studies of behavior, with a focus on research in mental health.