Estrogens (17尾-estraiol, estrone, and estriol) are steroid hormones produced by the developing follicles of the ovary. Although estrogens are primarily females sex hormones, males also produce estrogens. As lipophilic molecules they are believed to penetrate cell membranes and retained only in cells...
depending on the phase of the menstrual cycle. After menopause, most endogenous estrogen is produced by conversion ofandrostenedione, secreted by theadrenal cortex, to estrone by the peripheral tissues. Thus, estrone and the sulfate conjugated form, estrone sulfate, are the most abundant circulating ...
Estrogens are steroid hormones which are produced by the female gonads and have widespread effects throughout the body. Males also produce small amounts of estrogens by conversion (aromatization) of the male sex hormone testosterone and are sensitive to the estrogenic actions. The primary organs that...
Estrogens are female hormones produced by the ovaries. The ovaries make several different kinds of estrogens. In addition, scientists have been able to make a variety of synthetic estrogens. As far as we know, all these estrogens have similar properties and therefore much the same usefulness, sid...
What are the cells that are produced by the testes and ovaries? During the female reproductive cycle, ovulation primarily occurs due to a surge in which hormone: A. Estrogen B. Progesterone C. Follicle-stimulating hormone D. Luteinizing hormone ...
In infancy and childhood estrogen levels are low before the ovaries are stimulated to increase the production of E2 at puberty. In the complex course of maturation, the onset of puberty is characterized by a gradually increasing pulsatile secretion of hypothalamic gonadotropin-releasing hormone followed...
Estrogens are a group of steroid hormones present in three major physiological forms: estrone (E1; molecular weight (MW) 270.4 g/mol), 17β-estradiol (E2; MW 272.4 g/mol), and estriol (E3; 288.4 g/mol). Estrogens are mainly produced from cholesterol in the ovaries. Estrogens are also ...
Estrogen is a female sex hormone produced by the ovaries. Estrogen is necessary for many processes in the body. Conjugated estrogens are a mixture of estrogen hormones used to treat menopause symptoms such ashot flashesand vaginal changes, and to preventosteoporosis(bone loss) in menopausal women....
Plant estrogens are very similar to the estrogen produced naturally by our own body. 植物雌激素非常类似由身体自己天然产生的雌激素。 ParaCrawl Corpus These weaker plant estrogens block the effects of more powerful human-produced estrogens by fitting into the cell receptor sites for estrogen. 透...
Sewage treatment plant (STP) effluents with primarily domestic inputs are strongly suspected to be an important source of natural and synthetic estrogens contaminating the aquatic environment. Even a few ng/L of some of these substances can provoke reproductive disturbances in riverine fish. The main...