Articles Related to hormones

This study was carried out to study the peculiarities of the topography, the macrostructure and the analysis of the structural and functional organization patterns of the parenchyma of the thyroid gland of dairy cows (local breed from the Souk Ahras region, Algeria). A complex of macroscopic and histological techniques was used, as well as immunohistochemical staining of thyroid gland sections to identify localization characteristics of thyrocyte populations in the parenchyma.

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Toxoplasmosis is a cosmopolitan disease with acute and chronic infections, caused by the obligate intracellular protozoan parasite. Toxoplasma gondii that can infect a variety of cells in almost all warm blooded animals including humans. The study aimed to determine the seroprevalence of T. gondii infection among males in Duhok city using ELISA (IgG and IgM).The relationship between toxoplasmosis and reproductive hormones including testosterone, free testosterone, and follicle stimulating hormone (FSH) levels and its association with male sterility were also investigated.

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Eating related hormones may be strongly involved in the control of food intake under stressful conditions. The development and maintenance of eating disorders such as obesity, binge eating disorder, and bulimia nervosa might be in part explained by the altered release of insulin, ghrelin or leptin in particular in vulnerable subjects such as restrained eaters. The present investigation describes the secretion of these hormones before and after stress in a sample of 44 young women, who were selected according to a high degree of dietary restraint. Hormones were analysed from blood samples which were drawn 30 and 60 minutes after a validated stressor. Ghrelin levels significantly rise after stress induction. Insulin and Leptin both significantly fall after stress. The results are discussed with regard to biological as well as psychological causes and consequences of stress related hormone release in restrained eaters.

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In assisted reproduction of cattle the design and preparation of in vitro culture media has been instrumental in supporting the development of bovine oocytes and embryos. In vitro production (IVP) involves three main sequential steps: oocyte aspiration and in vitro maturation (IVM); in vitro fertilization (IVF); and in vitro culture (IVC) of early pre-implantation embryos.

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Assisted reproductive technologies, such as artificial insemination and embryo transfer, have produced significant outcomes in cattle. These technologies are useful not only for improving fertility but also for increasing the rate of genetic change in beef and dairy livestock. Today, embryo transfer in cattle is both practical and commercially viable. However, bovine embryo transplantation still remains suboptimal under on-farm conditions, one of the main reasons for which may be inefficient nutritional management.

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They are cytokines secreted by adipose tissue considered to be immunomodulating agents, however they can be more accurately put into the larger, growing list of adipose-derived hormones.

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