Animal tissues synthesize cholesterol from metabolities of small molecular size, principally cholesterol. This synthetic process is known to take place in the liver but may also occur in other organs. In all tissues, with the exception of brain and nerve, cholesterol is continually regenerated. Cholesterol is the parent substance which the animal organism uses to produce bile acids, progesteron...

24-Epibrassinolide belongs to the brassinosteroid family of plant hormones, and carbenoxolone is a synthetic analogue of glycyrrhizic acid that inhibits enzymes important in steroid and prostaglandin action in animals. The e€ect of these compounds on root nodulation, root growth and shoot growth of Glycine max (L.) Merr. cv. Tracy M was examined. Epibrassinolide reduced total nodulation, plant ...

Endocrine disruption is a hypothesis of common mode of action that may define a set of structurally varied chemicals, both natural and synthetic. Their common mode of action may suggest that they produce or contribute to similar toxic effects, although this has been difficult to demonstrate. Insights from developmental biology suggest that development of hormone sensitive systems, such as the b...

Madin-Darby canine kidney (MDCK) cells can grow in synthetic medium supplemented with five factors--insulin, transferrin, prostaglandin E1, hydrocortisone, and triiodothyronine--as a serum substitute. These five factors permit growth for 1 month in the absence of serum and a growth rate equivalent to that observed in serum-supplemented medium. Dibutyryl adenosine 3',5'-cyclic monophosphate subs...

All methods of contraception have failure rates. Additional failures may occur when interacting drugs are used, and knowledge of these mechanisms should help minimise such problems. This article will look at interactions with hormonal methods of contraception, only some of which, at the present state of knowledge, have clinical significance. The synthetic hormones ethinyloestradiol (EE) and pro...

The effect of diethylstilboestrol (DES; 0.5 mg/100 g) and progesterone (2.5 mg/100 g) was studied on the catecholamine content of adrenals and uteri of seven day ovariectomized albino rats. The agents were administered i.p. on alternate days for one week and the tissue catecholamine content was determined spectrophoto fluorometrically. DES treatment increased the total adrenaline contents of ad...

Organic agricultural products are the best raw materials for food with high nutritional density (food supplements, functional foods, and nutraceuticals). The applied technologies in organic farming system use inputs free of hormones, GMOs, pesticides, antibiotics other synthetic substances - all these allow both preservation bio-availability active compounds during processing elimination toxico...

The human body is composed of many systems and organs that work together to ensure our well-being survival. Hormones are the messengers allow communicate. thyroid a butterfly-shaped gland located in neck uses iodine from diet (mainly present seafood) produce hormones: thyroxine (T4) triiodothyronine (T3). hormones very important for brain development, growth, metabolism. A lack impairs producti...

background: the aim of this study, we have compared the advantages of oral dydrogestrone with vaginal progesterone (cyclogest) for luteal support in intrauterine insemination (iui) cycles. progesterone supplementation is the first line treatment when luteal phase deficiency (lpd) can reasonably be assumed. objective: this study was conduct to compare the effect of oral dydrogestrone with vagina...