The brain coordinates the homeostatic defense of multiple metabolic variables, including blood glucose levels, in the context of ever-changing external and internal environments. The biologically defended level of glycemia (BDLG) is the net result of brain modulation of insulin-dependent mechanisms in cooperation with the islet, and insulin-independent mechanisms through direct innervation and neuroendocrine control of glucose effector tissues. In this article, we highlight evidence from animal and human studies to develop a framework for the brain's core homeostatic functions-sensory/afferent, integration/processing, and motor/efferent-that contribute to the normal BDLG in health and its elevation in diabetes.
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http://dx.doi.org/10.2337/dbi24-0001 | DOI Listing |
Reprod Sci
January 2025
Department of Biology, Faculty of Science, University of Qom, Qom, 3716146611, Iran.
Fluoxetine is used in the management of depression, anxiety and other mood disorders by increasing serotonin levels in the brain and can cause sexual side effects by changing the homeostasis of sex hormones and increasing oxidative stress. Since many men who take fluoxetine are of reproductive age and sperm are exposed to fluoxetine for a considerable time, this study aimed to examine the in vitro effects of fluoxetine on human sperm biochemical markers and sperm parameters. Semen samples from 30 fertile men were divided into three groups: a positive control group, a negative control group and a fluoxetine-treated group.
View Article and Find Full Text PDFZhong Nan Da Xue Xue Bao Yi Xue Ban
July 2024
Department of Endocrinology, First Affiliated Hospital of Baotou Medical College, Baotou Inner Mongolia Autonomous Region 014010, China.
Obesity, as a global health crisis, is increasingly linked to intestinal microecology. Probiotics colonise the body, effectively regulating the balance of intestinal flora, while strengthening the intestinal barrier, activating the immune response, releasing beneficial substances, and maintaining micro-ecological balance. This process not only enhances the defence against pathogens, but also reduces the production of inflammatory factors and lowers the level of chronic inflammation.
View Article and Find Full Text PDFPediatr Crit Care Med
January 2025
Department of Pediatrics, Division of Critical Care Medicine, Children's National Hospital and The George Washington University School of Medicine and Health Sciences, Washington, DC.
Objectives: To examine the relationship between adequacy of caloric nutritional support during the first week after severe traumatic brain injury (TBI) and outcome.
Design: Single-center retrospective cohort, 2010-2022.
Setting: Tertiary care children's hospital with a level 1 trauma center.
Background: Alzheimer's disease (AD) is a progressive neurodegenerative disease with multifactorial etiology. The toxicity of senile plaques and neurofibrillary tangles is associated with changes in the clearance of tau and beta-amyloid proteins, which are closely related to inflammatory imbalances. Pro-inflammatory cytokines are present in abnormal details due to the overactivation of immunological pathways, especially toll-like receptors.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
MRC Unit for Lifelong Health & Ageing at UCL, London, United Kingdom.
Background: Associations of common infections with Alzheimer's disease have been reported, but potential mechanisms underlying these relationships are unclear. A hypothesised mechanism is amyloid-beta (Aβ) aggregation as a defense mechanism in response to infection, with subsequent tau accumulation. However, no studies have assessed associations of infections with cerebral Aβ and tau pathology in vivo.
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