Sci Total Environ
December 2024
Bisphenol A (BPA) is a widely used industrial chemical found in various products, leading to human exposure through dietary and non-dietary sources. It acts as an endocrine disruptor, affecting reproductive processes in vertebrates by binding to estrogen receptors. While its effects on vertebrates have been extensively studied, much less is known about its impact on invertebrates.
View Article and Find Full Text PDFIntroduction: In colorectal cancer, men exhibit a higher incidence than women, and there is a disturbance in the levels of sex steroids in serum in patients with this disease. Consistently, in animals, males have greater tumor growth than females in diverse models. Nevertheless, the role of sex steroids is not well established.
View Article and Find Full Text PDFIntroduction: Sexual dimorphism significantly influences cancer incidence and prognosis. Notably, females exhibit a lower risk and favorable prognosis for non-reproductive cancers compared to males, a pattern observable beyond the scope of risk behaviors such as alcohol consumption and smoking. Colorectal cancer, ranking third in global prevalence and second in mortality, disproportionately affects men.
View Article and Find Full Text PDFFront Immunol
April 2024
Introduction: Worldwide, breast cancer is the most important cancer in incidence and prevalence in women. Different risk factors interact to increase the probability of developing it. Biological agents such as helminth parasites, particularly their excretory/secretory antigens, may play a significant role in tumor development.
View Article and Find Full Text PDFThe physiologic increase in some sex hormones has been associated with an increase in the parasite load caused by Haemonchus contortus in ewes, especially prolactin. In lambs that are especially susceptible to hemonchosis, the levels of sex hormones are low; in contrast, the levels of another pituitary hormone, growth hormone (GH), which is structurally very similar to prolactin, are high. In this study, the in vitro and in vivo effects of GH on H.
View Article and Find Full Text PDFAlthough the modulation of immunity by exercise has been a long-studied paradigm, the molecular pathways connecting the two are still not fully understood. Regular moderate aerobic exercise is associated with improved health and directly impacts the immune system by changing the proportion of cell subpopulations, their function, and interleukin production. The endocannabinoid system has gained importance as an immune modulator, affected by moderate aerobic promoting the production of endocannabinoids, which are ligands of the cannabinoid receptors (CBRs) expressed on the surface of all immune cells.
View Article and Find Full Text PDFOutdoor air pollution is responsible for the exacerbation of respiratory diseases in humans. Particulate matter with an aerodynamic diameter ≤2.5 μm (PM) is one of the main components of outdoor air pollution, and solvent extracted organic matter (SEOM) is adsorbed to the main PM core.
View Article and Find Full Text PDFCancers (Basel)
August 2023
Metastasis remains the leading cause of mortality in prostate cancer patients. The presence of tumor cells in lymph nodes is an established prognostic indicator for several cancer types, such as melanoma, breast, oral, pancreatic, and cervical cancers. Emerging evidence highlights the role of microRNAs enclosed within extracellular vesicles as facilitators of molecular communication between tumors and metastatic sites in the lymph nodes.
View Article and Find Full Text PDFCrit Rev Toxicol
August 2023
Parkinson's disease is a neurodegenerative disorder characterized by oxidative stress and immune activation in the nigro-striatal pathway. Simvastatin regulates cholesterol metabolism and protects from atherosclerosis disease. Simvastatin-tween 80 was administered 7 days before sterotaxic intrastriatal administration of MPP (1-methyl-4-phenylpyridine) in rats.
View Article and Find Full Text PDFInt J Mol Sci
October 2022
Breast cancer treatment failure is related to low response rates, high costs, and long-term toxicities. Thus, it is necessary to find less toxic, cheaper, and more effective treatments. In situ administration ensures drug delivery to tumor cells and decreases systemic toxic effects.
View Article and Find Full Text PDFThe effects of administration of four different fractions of T. hydatigena larvae vesicular concentrate (ThLVC) prior to immunization with ovalbumin (OVA) in rats on different parameters of the immune response were evaluated. The amount of anti-OVA IgG by ELISA, amount of blood eosinophils (BE), percentage of cell subpopulations by flow cytometry (CD3+/CD4+, CD3+/CD8+, CD3-/CD45RA+, and CD11b/c+), and production of serum cytokines by bead-based immunoassays (IL-2, IL-4, INFγ, IL-5, TNFα, GM-CSF, IL-17F, IL-17A IL-13, IL-22, and IL-6) were measured.
View Article and Find Full Text PDFNotwithstanding that most biomedical research today focuses on the pandemic caused by the SARs-CoV-2 virus, there are many unresolved diseases that are almost forgotten worldwide [...
View Article and Find Full Text PDFInt J Environ Res Public Health
June 2022
Unlabelled: Phthalates and bisphenols are ubiquitous environmental pollutants with the ability to perturb different systems. Specifically, they can alter the endocrine system, and this is why they are also known as endocrine-disrupting compounds (EDCs). Interestingly, they are related to the development and progression of breast cancer (BC), but the threshold concentrations at which they trigger that are not well established.
View Article and Find Full Text PDFMast cells (MCs) play a crucial role during infections, which is transmitted through the bite of an infected sand fly that injects saliva together with the parasite. Sand fly saliva is a complex fluid that modulates the host immune response. In addition, hormonal factors modulate the host immune response and alter susceptibility to infections.
View Article and Find Full Text PDFThe interaction of the nervous, immune, and endocrine systems is crucial in maintaining homeostasis in vertebrates, and vital in mammals. The spleen is a key organ that regulates the neuroimmunoendocrine system. The mouse system is an excellent experimental model to study the complex host-parasite relationship, particularly sex-associated susceptibility to infection.
View Article and Find Full Text PDFInt J Mol Sci
February 2022
Breast cancer (BC) metastasis represents the main physiopathology leading to poor prognosis and death. Bisphenol A (BPA) is a pollutant, classified as an endocrine-disrupting chemical compound with estrogenic properties, their exposure in the early stages of neonatal life leads to an increase in the size and weight of breast tumors and induces cellular changes in the tumoral immune microenvironment where cytokines play a key role. Thus, we used female BALB/c mice exposed neonatally to a single dose of BPA.
View Article and Find Full Text PDFInt J Environ Res Public Health
February 2022
Public concern has emerged about the effects of endocrine-disrupting compounds (EDCs) on neuropsychiatric disorders. Preclinical evidence suggests that exposure to EDCs is associated with the development of major depressive disorder (MDD) and could result in neural degeneration. The interaction of EDCs with hormonal receptors is the best-described mechanism of their biological activity.
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View Article and Find Full Text PDFPrimary neuroendocrine differentiation in prostate cancer occurs infrequently and represents a therapeutic challenge at present due to the poor prognosis involved. We present the case of a patient with de novo neuroendocrine prostate cancer who later developed metastases to adrenals bilaterally which were initially managed surgically.
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