[Preclinical toxicological study of ecorsin]. / Doklinicheskoe toksikologicheskoe izuchenie ékorsina.

A new drug preparation ecorsin based on the dry aspen bark extract was studied for toxicological safety on a preclinical stage. The drug exhibited no toxicity upon a single administration to rats and mice (both male and female). The intragastric administration of ecorsin for 3 months to rats (at a daily dose of 50, 250, and 500 mg/kg) and rabbits (25 and 50 mg/kg) led to neither functional not morphological changes in hemopoietic and lymphoid organs, liver, kidney, heart, digestive system, and CNS. The long-term administration resulted in a partial atrophic modification of convoluted seminiferous tubules in impuberal male rats, while not affecting the testes of aged animals. The administration of ecorsin at 50, 250, and 500 mg/kg led to dose-dependent changes in some characteristics of the reproductive capacity in rats. Ecorsin did not modify the extent of allergic reactions and produced no immunotoxicant and mutagen effects.

[Effect of Scutellaria baicalensis extract on the immunologic status of patients with lung cancer receiving antineoplastic chemotherapy]. / Vliianie ékstracta shlemnika baikal'skogo na immunologicheskii status bol'nykh rakom legkogo v usloviiakh protivoopukholevoi khimioterapii.

Cytostatic therapy of patients with lung cancer is attended with decrease in the relative number of T-lymphocytes and their theophylline-resistant population. Patients who were given SB showed a tendency towards increase of these parameters during antitumor chemotherapy. The immunoregulation index (IRI) in this case was approximately twice the background values during the whole period of investigation. The inclusion of SB in the therapeutic complex promotes increase in the number of immunoglobulins A at a stable level of immunoglobulins G.