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Biomedical subjects

F Kumanov

Publications and source records attributed to F Kumanov.

7 recordsLinked to original sources
PubMed1998

[Multiple pregnancy and microelements: zinc (preliminary report)].

The aim af the study was to define the concentration of zinc in sera of women with multiple pregnancies during the last trimester and to compare it with the values in normal pregnancies. The study included 12 women with gemini and 67 with single fetus pregnancies. A statistically significant decrease was found in the mean zinc concentration in twin pregnancies--8.1 +/- 1.72 mcmol/L compared to the mean values in normal pregnancies--10.5 +/- 1.90 mcmol/L (p < 0.001). Various mechanisms, possibly responsible for the stated changes, their relation to some complications of multiple pregnancy and delivery are discussed, as well as their prophylactics.

Analysis of Variance↗
PubMed1997

[The copper concentration in the maternal serum in missed abortion].

Two groups of women with missed abortion examined in different periods of time were included in the study--the first group of 43 patients was examined in 1989-1990 and the second group of 24 in 1994. The control group consist of 73 women in the first trimester of normal pregnancy and 75 nonpregnant women. The serum copper concentration of the first group with missed abortion (19.47 +/- 4.62 mumol/l) was significantly (p < 0.001) lower than those of control group with normal pregnancy (23.40 +/- 5.10 mumol/l). The serum concentration of the second group with missed abortion was even lower--17.82 +/- 2.95 mumol/l. The serum copper level was measured directly with flame atomic absorption spectrometry. The histology reveals dystrophic and necrotic changes and also inflammatory changes with edema of chorion villi without enhanced collagenisation. We discuss the possible mechanisms of the observed changes.

Abortion, Missed↗
PubMed1991

[Endocrine changes in males with anorexia nervosa: 2 of the authors' own cases].

Two men with nervous anorexia were fully investigated and the results were compared with those of 15 healthy men and 19 women with the same disease. A similarity of the hormonal changes in both sexes concerning the somatotropic hormone, thyroid and cortico-suprarenal axis was established. A difference was found between the women and the two men concerning the gonadotropic hormones which in the men showed a well expressed reaction to gonadoliberin with an early maximum.

Adolescent↗
PubMed1989

[Diagnosis and treatment of idiopathic hypogonadotropic hypogonadism in men based on a clinical case].

A patient with tertiary hypogonadotropic hypogonadism was followed up for many years. On the basis of this observation the possibilities for a correct diagnosis with the gonadoliberin test are pointed out. A positive effect of the treatment with gonadotropic hormones, especially on the spermatogenesis, is established. Several other new therapeutic means which can be applied in these patients are discussed.

Adult↗
PubMed1983

[Prolactin secretion and gynecomastia].

Nine males with gynecomastia were examined. The serum levels of LH, FSH, prolactin, testosteron, estradiol were determined, in some of the patients--progesteron. A stimulation with thyreoliberin was carried out to follow up prolactin reaction. The same examinations were performed with a control group of healthy males. Contrary to the healthy subjects, the patients with gynecomastia had a significantly higher levels of FSH and progesteron and testosteron was reduced with statistical significance. The basal level of prolactin in the patients with gynecomastia was not significantly increased and no deviations in the parameters of prolactin reaction was observed after the stimulation by thyreoliberin. On the base of those results progesteron in the males with gynecomastia is admitted to be able to support the mammo--tropic effect of estrogens, together with the reduced androgens and the altered receptivity of the mammary glands. Prolactin is of no great importance for gynecomastia.

Adolescent↗