By means of a “Personal Computer”, a technique has been worked out for the acquisition and processing of data, for the tridimensional reconstruction of vegetable structures starting out from information, in the form of photographic images, obtained by optical or electronic microscope.
Examples fo the application of this program to vegetable drugs (corolla of Lavandula anqustifolia Mill. flowers) are given.
The antimicrobial activity of some drugs utilized in traditional African medicine and selected on the basis of medicinal folklore reports, have been studied, within a screening program. The distribution of the antimicrobial activity among gram-positive, gram-negative bacteria, yeasts and mycoplasma is reported.
Summary
The present study was undertaken to define the effects of Trema guineense (Schum. and Thonn.) Ficalho (Ulmaceae) on some metabolic activity in the rat. A decoction of leaves, administered by gastric intubation, lowers haematic uric acid levels and increases urinary elimination of the same acid. No changes in the blood glucose and cholesterol levels were observed.
The classical therapy of congestive heart failure (CHF) with inotropic agents (digitalis and newer inotropics) and diuretic agents remains unsatisfactory in many cases. More recently it is recognized, that some of the neuro-endocrine compensatory processes associated with CHF are detrimental in the long run, and therefore potentially targets for drug treatment. This holds for the following neuro-endocrine mechanisms:o increased activity of the sympathetic nervous system and high plasma catecholamines, accompanied by down-regulation of β1- but not β2-receptors in the heart: stimulation of the renin-angiotensin-aldosterone system (RAAS), causing higher levels of renin, A II and aldosterone.
The detrimental sequelae of both processes are even enhanced by their complex mutual interactions. Drug treatment aiming to reduce or suppress these processes and their negative results is potentially offered by: vasodilators, counteracting vasoconstriction, low dose selective β1-adrenoceptor blockers, which will not only impair tachycardia but also upregulate cardiac β1-recep-
Effects on germination, growth and active principle contents of Achillea millefolium L. of an increase of cadmium concentration in soil and in atmosphere were investigated. Soil pollution reduced germination and growth. No significant differences were found in GLC analysis of all plants extracts.
The effects on Matricaria recutita L. of an increase of cadmium concentration in soil and in atmosphere were investigated. Data on germination, survival, growth and dry weight were collected and methilenic extracts of the drugs were analyzed. Cd pollution affects Matricaria germination and growth and GLC analysis of extracts shows a significant difference in active principles between the plants subject undergone different treatments.
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：