RESUMO
The proportion of so-called hyperplastic polyps among other colon epithelial tumours remains unclear. Colon polyps are studied in 400 patients: hyperplastic polyps are found in 107, a combination of hyperplastic polyp with tubular adenoma in 143, tubular adenoma in 72, villous adenoma in 41 and tubulovillous adenoma in 37 cases. Hyperplastic structures and formation of adenomatous structures were, as a rule, observed in a polyp tip, this corresponding to the increase of nuclei volume and DNA amount in the tip colonocytes. The determination of karyometric coefficient (the ratio of the colonocyte nuclei volume in the polyp tip to colonocytes in the intact mucosa) is proposed as a quantitative criterion of proliferative and dysplastic processes.
Assuntos
Pólipos do Colo/patologia , Corantes de Rosanilina , Colo/química , Colo/patologia , Pólipos do Colo/química , Pólipos do Colo/etiologia , Corantes , DNA de Neoplasias/análise , Humanos , Hiperplasia/etiologia , Hiperplasia/metabolismo , Hiperplasia/patologia , Mucosa Intestinal/química , Mucosa Intestinal/patologia , Cariometria , Microespectrofotometria , Morfogênese , Coloração e RotulagemRESUMO
Under examination there were 51 patients with duodenal ulcer with the terms of 6 and 12 months after various methods of operations on the stomach. An analysis of results has shown that the alterations of the immune system found are dependent on the kind of operation. In patients with duodenal ulcer with the terms of 6 and 12 months immune insufficiency remains the same. It is less pronounced in patients subjected to organ-preserving operations with vagotomy. The immunocorrective therapy performed at the preoperative period results in the formation of more valuable immune reactions at remote terms after operation.
Assuntos
Linfócitos B/imunologia , Úlcera Duodenal/cirurgia , Gastrectomia , Linfócitos T/imunologia , Vagotomia Gástrica Proximal , Adulto , Idoso , Úlcera Duodenal/imunologia , Feminino , Humanos , Contagem de Leucócitos , Linfopenia/etiologia , Masculino , Pessoa de Meia-IdadeAssuntos
Úlcera Duodenal/imunologia , Adulto , Feminino , Humanos , Imunidade , Masculino , Pessoa de Meia-IdadeRESUMO
The fragments of the mathematical simulation of one of the present-day methods of artificial pulmonary ventilation (APV) are described. Some parameters of this APV method have been calculated on the basis of the anatomic and physiologic data and the gas dynamic methods.
