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ER-LD Membrane Contact Sites: A Budding Area in the Pathogen Survival Strategy.
Contact (Thousand Oaks)
December 2024
Department of Pathology, Microbiology and Immunology, University of Nebraska Medical Center, Omaha, Nebraska, USA.
The endoplasmic reticulum (ER) and lipid droplets (LDs) are essential organelles involved in lipid synthesis, storage, and transport. Physical membrane contacts between the ER and LDs facilitate lipid and protein exchange and thus play a critical role in regulating cellular lipid homeostasis. Recent research has revealed that ER-LD membrane contact sites are targeted by pathogens seeking to exploit host lipid metabolic processes.
View Article and Find Full Text PDF["Pseudoneurotransmission" and gut microbiome - brain communication in neuropsychiatric disorders].
Psychiatriki
December 2024
Democritus University of Thrace, Alexandroupolis, Greece.
The gut microbiome, which comprises symbiotic bacteria colonizing the human digestive tract, undergoes dynamic changes during the lifespan, as evidenced by the fact that the number of species and the diversity of their composition decrease significantly with age. The aim of this review is to illuminate bilateral neuroimmunological pathways that determine the role of gut microbiome dysbiosis, not only as a cause but also as a byproduct of many neurodegenerative diseases of the CNS, such as Alzheimer's disease (AD) and Parkinson's disease (PD), but also in the frame of several behavioral and psychiatric pathological conditions such as depressive and anxiety disorders, schizophrenia, and autism spectrum disorder (ASD). Dysbiosis, in particular, reveals a model of "deceptive" mimicry of host molecules that might cause abnormal folding ("misfolding") and pathological aggregation of Aβ-peptide, leading to its dispersion through the gut-brain axis, precipitating microglia cell activation.
View Article and Find Full Text PDFA corollary study to substantiate the therapeutic role of receptor from in mitigating the sperm immobilization factor-mediated negative influences on mouse spermatozoa: a molecular mimicry-based approach.
Reprod Fertil Dev
December 2024
Department of Microbiology, Panjab University, Chandigarh, India.
Context Sperm immobilization factor (SIF) isolated from Staphylococcus aureus has been implicated earlier in the laboratory in infertility due to its negative impact on sperm function. Moreover, SIF was found to bind not only to human and mouse spermatozoa but also to several bacteria. Among the array of bacteria, we selected Shigella flexneri to investigate if it shares antigenic determinants with spermatozoa.
View Article and Find Full Text PDFFood choice mimicry on a large university campus.
PNAS Nexus
December 2024
School of Computer and Communication Sciences, EPFL, 1015 Lausanne, Switzerland.
Social influence is a strong determinant of food consumption, which in turn influences the environment and health. Purchasing mimicry, a phenomenon where a person copies another person's purchases, has been identified as the key governing mechanism. Although consistent observations have been made on the role of purchasing mimicry in driving similarities in food consumption, much less is known about the precise prevalence, the affected subpopulations, and the food types most strongly associated with mimicry effects.
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