Ammonium Salts Promote Functional Adaptation of Rat Erythrocytes on the Model of Forced Swimming

Bulletin of Experimental Biology and Medicine - Ammonium, an end-product of catabolism, in low doses can promote adaptation of metabolic pathways in erythrocytes under conditions of extreme...     

The isolation and characteristics of continuous virus-producing lymphoid suspension cultures of African green monkey cells

Five continuous lymphoid suspension cell cultures were established by cultivation of lymphocytes from African green monkeys. The immunological typing revealed the mixed pattern of cultures consisting of B and T cell types. Two types of viruses: herpesvirus and retrovirus C-type were demonstrated by electron microscopy. Indirect immunofluorescence and molecular hybridization studies showed one of the viruses to be an EBV-related herpesvirus of green monkeys designated HVGM and the other to belong to H (S) TLV-1 group.     

Splanchnic hemodynamics in acute cholecystitis and mechanical jaundice

The authors analyze results of the investigation of hemodynamics in the abdominal cavity vessels by the method of duplex scanning in 30 patients with acute cholecystitis, in 30 patients with mechanical jaundice and cholelithiasis and in 30 healthy subjects. It was found that these patients had less blood flow along the upper mesenterial artery and the portal vein. As a compensation the blood flow increased along the hepatic artery.     

Electrophysiologic and anatomic parallels in the status of the external rectal sphincter in healthy children and in those with anorectal developmental abnormalities

Electromyography was used to examine the external rectal sphincter in 44 neonate patients and in 24 patients aged 2 months to 3 years with different anorectal developmental abnormalities. The same examinations were performed in the control groups: in 30 normal neonates, in 15 premature (grade I-II) neonates, and in 64 normal children aged 1 to 14 years. According to the data of comparative morphometry, a study was made of the autopsy material of the external rectal sphincter from 15 full-term stillborns and 16 premature (grade I-II) stillborns as well as from 11 infants with anorectal developmental abnormalities who died within the first days after birth without any surgical intervention. It is concluded that in patients with anorectal developmental abnormalities, the contractility of the external rectal sphincter is considerably lower than in the respective weight groups of normal children and that such patients demonstrated the lack of the normal time-course of changes in its increase with age.     

Use of nitroglycerin to prevent arterial hypertension during general anesthesia using ketamine

Central hemodynamics was studied in 82 patients during surgery performed under various types of general intravenous ketamine anesthesia. Ketamine was shown to have a stimulating effect on hemodynamics both alone and in combinations with droperidol and diazepam. Single intravenous injection (0.25 mg) or drip infusion (0.3 micrograms/(kg.min) of nitroglycerin effectively prevented arterial hypertension, decreased peripheral vascular resistance and myocardial oxygen demand.