Release of prostaglandins in experimental immunecomplex endophthalmitis and phacoallergic uveitis

Prostaglandins-E were demonstrated in the aqueous humour, the anterior uvea, and the choroid of rabbits in which type III allergic reactions were produced by two different methods. In general the levels of prostaglandins were found to be higher in those animals in which the immune complexes were formed from autologous rather than heterologous tissue antigens.

Electrolytes in surgical patients: the effect of pre-operative starvation and environmental temperature

Serum sodium, potassium and chloride values were measured before and after pre-operative starvation and after premedication in healthy subjects under going routine surgery, during both temperate and hot weather. No significant change in serum electrolytes occurred during temperate weather either after starvation or after premedication. In hot weather, when the subjects were sweating, a rise in serum electrolytes occurred, indicating fluid deficit of about 1-8 litres after a mean period of starvation of 11 hours; premedication with atropine and diazepam in these subjects was followed by a significant decrease in the serum electrolytes from the previous raised level after pre-operative starvation.

Incorporation of palmitate-1-14C into liver lipids of rats fed millet (Sorghum vulgarie) at different protein levels

Feeding of defatted millet <i>(Sorghum vulgarie) </i>at different protein levels to rats for 6 weeks caused significant increases in liver total lipids, cholesterol, fatty acids, triglycerides (TG), phospholipids and its two major fractions PC and PE, as compared to the controls. Plasma triglycerides in millet protein fed rats were not reduced. Incorporation of palmitate-1-¹⁴C into liver TG, PC and PE of millet protein fed rats was significantly greater than the controls. The incorporation of palmitate-1-¹⁴C into plasma TG and into liver FC and EC of rats fed millet protein was equal to or slightly increased as compared to controls. These results show that the accumulation of TG in liver of rats fed millet at different protein levels results from their greatly enhanced synthesis and unimpaired secretion into plasma.

Diversity, dominance, stability, and net production in the grasslands at Varanasi, India

A study conducted on the grassland of Varanasi (Tropical), has shown that species diversity increases productive efficiency of the ecosystem while dominance makes the system stable, though less efficient for production. These results are contradictory to McNaughton's observation that diversity decreases efficiency and generates community stability, and thus call for further work before generalization for all situations can be drawn.