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Biomedical subjects

J Soria

Publications and source records attributed to J Soria.

At least 181 records · Page 10Linked to original sources

[Evaluation of coagulation factor XIII. Critical study of the different techniques used (author's transl)].

A critical study of various techniques of factor XIII determination was performed. The method using dansyl-cadaverin seems to be the most sensitive one but not easily usable in routine tests. The biological techniques using factor XIII-free fibrinogen (screening test and classical test) are satisfactory in clinical trials but are not sensitive for the detection of moderate deficiency of factor XIII. The immunological tests used are the electro-immuno-diffusion test and the test of the consumption of an anti-serum. However, only the antibody directed against the sub unit. A must be used. All these techniques were performed in acquired deficiency of factor XIII and a good correlation was obtained. However, in factor XIII congenital deficiency, we propose to associate a biological assay and the antigenic determination of factor XIII in order to detect a possible abnormal factor XIII.

Cadaverine↗

[The detection of soluble fibrin complexes by a haemagglutination test. Clinical applications (author's transl)].

Testing for soluble fibrin complexes was performed using a sensitive and reliable haemagglutination assay, with red cells sensitized by fibrin monomers. The principle is based on the fact that the monomers linked to red cells and induce their agglutination. This test, used in clinical trials, has revealed the presence of soluble complexes in every confirmed case of acute DIC, but also in Chronic DIC where diagnosis is difficult to establish (negative ethanol gelation test, normal or sub-normal levels of fibrin breakdown products). In Cirrhosis of the liver, the test gives positive results in a non negligible number of cases. Several hypotheses are made to explain why in certain confirmed cases of DIC, low fibrin breakdown products levels are found.

Aged↗

Glycosylated haemoglobin concentrations and clinitest results in insulin-dependent diabetes.

In 11 insulin-dependent diabetic outpatients, haemoglobin AIc (HbAIc) was measured by an electrofocusing method. Diabetic control was evaluated by the semiquantitative urine test for sugar, 'Clinitest', three times a day every day in the 8 weeks before the HbAIc determination. 24-hour glycosuria and fasting and postprandial blood-glucose levels were measured one to five times during this period. The HbAIc concentration correlated highly with the semi-quantitative urinary-sugar-concentration index but not with the other parameters.

Blood Glucose↗

Prolactin responsiveness to TRH in amenorrheic women with and without galactorrhea.

Sixty women were given intravenous injection of 200 microgram TRH to assess its diagnostic potential as a stimulus to PRL release. Following the administration of TRH, there was a prompt increase in serum PRL to 614.6%, to 296%, to 282.1%, and 34% in normal women, amenorrheic patients, non tumoral galactorrheic cases, and patients with pituitary tumors respectively. The TRH response above baseline of PRL levels was statistically significant in all groups, but the women with pituitary tumors which showed a blunted response. The per cent of increment of PRL levels after TRH was similar in amenorrheic women regardless the presence or not of galactorrhea; this increase was significantly greater than in patients with pituitary tumors (p less than 0.01). The per cent of increment above baseline of PRL was significantly greater in menstruating women than in amenorrheic patients (p less than 0.001). In basis of present data: 1) there is a diminished PRL secretion after TRH in amenorrheic women regardless the presence of galactorrhea or hyperprolactinemia; 2) a blunted response to TRH in hyperprolactinemic women may be indicative of a pituitary tumor.

Amenorrhea↗