Mechanism of stigmasterol dealkylation in insect

A self-consistent mechanism for dealkylation in soman-inhibited acetylcholinesterase.

Stigmasterol: a Comprehensive Review

Extensive research has been carried out from last decades to discover potential constituents from plant sources. Stigmasterol is an important constituent and has been isolated from plants. It is involved in the synthesis of many hormones like progesterone, androgens, estrogens and corticoids. In addition to stigmasterol many of its derivatives like, spinasterol, fucosterol, cyasterone, stigmast...

The Motor Mechanism of the Insect Leg

IN view of the number of papers that have appeared in recent years on* the neuromuscular systems of various groups of animals, it is somewhat surprising that no attempt has been made to clarify the position in regard to the insects. There can be no doubt that a particular interest attaches to this group from the standpoint of comparative physiology. As the most highly developed members of the A...

The Reflex Mechanism of the Insect Leg

IN attempts to resolve animal behaviour into simpler terms much weight has always been given to the concept of the reflex as a unit. Since the classical work of Sherrington and others (Creed, etc., 1932) on the responses of the spinal vertebrate, many authors have supposed it to be merely a matter of time before all behaviour would be interpreted in such terms. In recent years, however, another...

the effects of high non fibrous carbohydrates diet on milk production, inflammation and molecular mechanism of innate immunity in lactating dairy cows

پژوهش حاضر با هدف بررسی اثر جیره حاوی کربوهیدراتهای غیرالیافی زیاد و بروز التهاب در گاوهای شیرده در دو آزمایش جداگانه انجام شد. در آزمایش اول 20 رأس گاو مبتلا به ورم پستان از دو گروه کم تولید و پرتولید (هر کدام 10 رأس) و 20 رأس گاو سالم از دو گروه کم تولید و پرتولید (هر کدام 10 رأس) انتخاب شدند. همه گاوها در دوره دوم و یا سوم شیردهی و در روزهای 80-120 پس از زایش بودند. میانگین تولید شیر در گروه...