Hybrids between chum Oncorhynchus keta and pink Oncorhynchus gorbuscha salmon: age, growth and morphology and effects on salmon production.

Mature hybrids between chum salmon Oncorhynchus keta and pink salmon Oncorhynchus gorbuscha, which were identified by an intermediate colour pattern, were caught at the Kurilsky Hatchery, Iturup Island, Russia. Most of them were female and 3 years old (a partial freshwater year and 2 marine years), which is intermediate between the ages of maturity of the parental species. The hybrids exceed both parental species in the rate of growth, are large in size and robust and might successfully compete for mating in the wild or be chosen for artificial reproduction.

[The interrelation between allergic reactions to dentures made of stainless steel and the skin hypersensitivity to Cr and Ni].

Twenty-two patients with stainless steel dentures, suffering from skin sensitization to chromium and nickel, were examined. The majority of these patients wore the dentures without complaining of local or general pathologic reactions. In three allergic catarrhal glossitis, aphthous stomatitis, and dermatitis were diagnosed.

[The incidence of intolerance for stainless-steal dentures based on data from a questionnaire and from clinical laboratory research methods].

Questionnaires were distributed among 1042 patients with stainless steel dentures. 178 of these complained of symptoms characteristic of denture intolerance. Clinical examinations, pH-metry of mixed saliva and stationary potential of the dentures, epicutaneous allergologic tests, and removal of dentures in intricate cases to specify the diagnosis have revealed intolerance of electrogalvanic nature in 62 patients.

[The intraosseous administration on kavinton in treating myeloradiculoischemia].

The authors present a comparative analysis of the efficacy of their method of administration of vasoactive drugs into the peridural venous system and traditional conservative therapy in radiculomyeloischemia of different etiology. The dynamics of the disease was evaluated both by clinical manifestations and by evoked spinal cord potentials, complex examination of the acid-base balance of the blood from the involved vascular territory and blood from extremities. Results of a detailed examination of 24 patients with myeloradiculopathy carried out by means of precise electrophysiological and laboratory methods permit to recommend this treatment in clinical conditions.

[The diagnostic value of epicutaneous tests in intolerance for dentures made of stainless steel].

A total of 19 patients with stainless denture intolerance were examined. In addition to the routine stomatological examination, the authors determined pH of mixed saliva, measured the steady-state potentials of dentures, and performed epicutaneous tests with samples made of stainless steel, chromium and nickel. In all the patients, the epicutaneous tests with chromium and/or nickel were positive, those with stainless steel were negative.