Search PubMed⌕ Search

Biomedical subjects

M Honma

Publications and source records attributed to M Honma.

At least 199 records · Page 11Linked to original sources

Plasma cyclic GMP: response to cholinergic agents.

S.c. injections of cholinergic agents, carbachol, methacholine and bethanechol, into fasted rats caused rapid increases in the plasma concentration of cyclic GMP, with a sharp peak at 5--10 min after the injection. Acetylcholine gave rise to a rapid accumulation of cyclic GMP in plasma only when administered together with physostigmine which produced only a slight, if any, potentiation of the action of the cholinesterase-resistant choline esters. Cyclic AMP also increased after these drugs, but only subsequently to the rise of cyclic GMP; the primary action of the cholinergic drugs appeared to be the increase in cyclic GMP. Atropine was effective not only in abolishing the increase in plasma cyclic GMP induced by cholinergic drugs but also in lowering the baseline level of cyclic GMP. It was concluded that the plasma concentration of cyclic GMP could serve as a good parameter of cholinergic activity in rats.

Acetylcholine↗

An epidemic of acute hemorrhagic conjunctivitis in Sendai area, 1973-1974.

In 1973 and 1974, an epidemic of acute hemorrhagic conjunctivitis (AHC) with a tendency of less frequent conjunctival hemorrhage occurred among the staff of the National Railways and their family in Sendai area. Four strains of AHC virus and 4 strains, 1 of type 7 and 3 of type 8, of adenoviruses were isolated from 22 conjunctival swabs of the patients. Thirty-six (66%) out of 55 cases examined were proved serologically to be of AHC virus infection, and 7 cases (13%) were of adenovirus infection. Clinically, infrequent association of hemorrhagic conjunctivitis was most remarkable. Only 10 cases (28%) had detectable signs of hemorrhagic conjunctivitis. There were no substantial changes in antigenicity and optimum temperature for virus multiplication between prototype and isolated strains. The isolated strains, however, seemed to be less neutralizable and less producible at 29 degrees C than prototype strain.

Acute Disease↗