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Biomedical subjects

A Buczek

Publications and source records attributed to A Buczek.

31 records · Page 2Linked to original sources
PubMed1991

[Disturbances in the process of hatching of larvae Argas (A) reflexus (Fabr.) (Acari: Ixodida: Argasidae) exposed to various thermal and humidity conditions].

The most cases of abnormal hatch larvae (40.2%) of A. reflexus were in relative humidity 90% and temperature 25 degrees C; the least (0-2.8%)--at the low relative humidity levels (10 and 30%) in all examined temperatures of experiments. The rise of relative humidity caused the greater number of the disturbances of hatch larvae. The most often +non-separation of integument eggs from body of larvae was observed, what made impossible normal formation of legs and made difficult locomotive faculty.

Animals↗
PubMed1987

The effect of gastric banding on body weight in experimental animals.

Recently a new method of gastroplasty has been used in operative treatment of extreme obesity in humans. It depends on putting on the stomach an inabsorbable band in order to form two reservoirs: one small upper, the other large lower, and a narrow passage connecting them, without the necessity to open the stomach. Before using this method on humans it has been experimentally examined on 19 pigs. Gastric banding has little effect on the decrease of body weight, it has some effect only in the first 3-6 weeks. Bands put on the stomach move inside it because of the excessive built-up of pressure in the upper reservoir. The reservoirs vanish. Animals quickly put up weight. The pathological mechanism of moving the band inside the stomach can be explained by the presence of two processes: one reperative, on the serose layer, the other destructive, into the stomach. These findings prove that in operative treatment of extreme obesity in humans it seems essential not to allow the pressure to build up excessively in the upper stomach reservoir.

Animals↗
PubMed1985

Evaluation of immunity of sheep after splenectomy, splenic artery ligation and autotransplantation of splenic tissue.

The studies aiming at evaluation of immunity after splenectomy, splenic artery ligation, and autotransplantation of splenic tissue were performed in sheep. It was found that splenectomy alters both humoral and cellular immunity. The phagocytic activity of granulocytes, reduced level of IgG, drop in T and ARF cells as well as bone marrow stimulation were noted. In animals subjected to splenic artery ligation or autotransplantation of splenic tissue no significant differences in parameters studied were observed. These results correlated with histological examinations indicate that in the case of spleen trauma two important steps should be followed: the spleen, if possible, should be saved or a spleen saving procedure should be employed; in case of extensive trauma or if contraindications for spleen saving exist, autotransplantation of splenic tissue should be performed.

Animals↗