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L A Kuznetsova

Publications and source records attributed to L A Kuznetsova.

At least 73 records · Page 4Linked to original sources
PubMedDate not supplied

[Peritrophic membrane of the 2d type in females of the genus Aedes].

In the females of bloodsucking mosquitoes of the genus Aedes there was recognised a secretory activity of the cells of the external wall of the cardial portion of the intestine. The secretion excreted according to the macroapocrine type forms in the cardial cavity a peritrophic membrane of the 2-nd type. A difference in the development rate of the membrane in the species studied was noted.

Aedes↗
PubMedDate not supplied

[The dual regulation by glucagon of the adenylate cyclase system in the embryonic chick heart].

Taken in physiological concentrations, glucagon increases the activity of adenylate cyclase from the heart of 11-day chick embryos, i.e. at the earliest investigated stage. High glucagon concentrations inhibit the enzyme from cardiac membranes at all ontogenetic stages except mature chicks in which glucagon produces stimulating effect. Guanine nucleotides potentiate this effect up to the 16th day of incubation, this effect being absent at later periods. Reconstruction of adenylate cyclase system from the heart of 16-day embryos with N-proteins from mature liver tissue of chicks results in the recovery of potentiating effect. However, at later developmental stages, potentiation was absent even in the presence of N-proteins.

Adenylyl Cyclases↗