[CO2-laser treatment of cicatriceal stenosis after Dixon's operation].

A non-tumoral stenosis of the gastrointestinal tract (after rectum resection) was treated successfully with CO2 laser. The case was not suitable for classic surgical resection.

Surgical treatment of stenosed duodenal ulcers.

Based on the clinical pattern (case history, radiological, endoscopic and laboratory examinations) four stages of ulcerous stenoses are distinguished (stage I: subclinical; stage II: compensated; stage III: decompensated; stage IV; complete stenosis). Organ-preserving vagotomy is justified only in stages I and II, in which the motoric function and emptying of the stomach is not yet damaged. In stages III and IV resection is the operation of choice.

Early complications of gastric resection.

Analyzing the patient material of 506 patients with gastric resection, authors deal with the early complication of resection, its diagnosis and treatment. They review the complications, their frequency and mortality in their own material. After operations made for tumour, complications occurred more frequently than after interventions because of ulcer.

Involvement of dopaminergic receptors in action of corticotropin releasing factor (CRF) under in vitro conditions.

ACTH release under the effect of median eminence extract (ME) was studied in both incubation and superfusion experiments. ACTH content of the incubation medium was measured by radioimmunoassay or by the corticosterone production of trypsinisolated adrenocortical cells. Dopamine at low concentration led to a slight increase of basal ACTH secretion, while at higher concentration failed to influence ACTH release.

Effect of the depletion on brain noradrenaline on the plasma FSH and growth hormone levels in ovariectomized rats.

The electrolytic lesion of locus coeruleus reduced the hypothalamic noradrenaline (NE) content to 28% of the control values and resulted in a marked decrease of the plasma FSH level in ovariectomized rats before puberty. The local microinjection of 6-OH-dopamine into the locus coeruleus led to a reduction in the hypothalamic NE content to 21% of the control level and induced a decrease of the compensatory ovarian hypertrophy and that of the plasma FSH level. The electrolytic lesion of the locus coeruleus or the 6-OH-dopamine treatment failed to influence the plasma growth hormone (GH) level.