Despite new technological advances and improved assay methods, the relationship between hormones and human sexual behavior is still poorly understood. Sex drive and responsiveness, gender identification, and sexual preference are all influenced by hormones. Endocrine studies of impotent men have produced conflicting results. Exogenous androgens seem to produce some results with impotent men....

Pregnancy is a highly regulated process, requiring strict control of the immune system in order to prevent rejection of the semiallogenic foetus. One aspect of pregnancy immunology that has been of great interest is the influence of female sex and pregnancy associated hormones, such as progesterone and oestrogen, on cells of the immune system. This review evaluates studies investigating the abi...

A Pereira-Vega, JL Sánchez Ramos, R Vázquez Oliva, JA Maldonado Pérez, M Alwakil Olbah, M Montero Fernández, I Vázquez Rico, JL Robles Rodríguez, JM Ignacio García, P Romero Palacios, JF Medina Gallardo 1 Pneumology Section, Hospital Juan Ramón Jiménez de Huelva, Huelva, Spain Department of Nursing, University of Huelva, Campus del Carmen, Huelva, Spain Pneumology Section, Hospital Infanta Elen...

Oestrogenic steroid hormones (‘oestrogens’) have a crucial role in cellular regulation in all vertebrate species. The levels required to bring about such changes are very low, around 0.1–1 pg/ml (picograms per millilitre) of serum. It has been known for over five decades that oestrogens affect the development of the male reproductive system of mammals (Zuckerman, 1940). Nonetheless, oestrogenic...

BACKGROUND Hormones can play a significant role in the pathogenesis of multiple sclerosis (MS). The aim of this study was to compare levels of ghrelin, leptin, and testosterone hormones of MS patients with healthy subjects, and assess the relationship between levels of peptide hormone and sex hormones in MS patients. METHODS 35 MS patients with definite relapsing remitting multiple sclerosis ...

Information was collected by mail survey about myocardial infarction (MI), use of female hormones after menopause, and coronary risk factors 121,964 registered nurses ages 30-55 years. One hundred twenty-three women with a known type of prior menopause reported hospitalization for MI. Overall, use of female hormones by these women was very similar to that of control women matched for age and ty...