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Biomedical subjects

I Owczarczyk

Publications and source records attributed to I Owczarczyk.

At least 19 recordsLinked to original sources
PubMed1985

Prolactin and thyrotropin response to thyrotropin-releasing-hormone in adolescent females with insulin-treated diabetes mellitus.

Prolactin and thyrotropin response to TRH and basal gonadotropins levels in blood were investigated in insulin-treated adolescent females with regular menstruation cycles (Group I) and menstruation disturbances (Group II) compared with control, healthy girls. No significant differences were found in TSH secretion after TRH administration and basal LH, FSH levels between the observed groups. Blood basal PRL levels were significantly lower in young females in Group II, and a highly increased mobilization of PRL secretion (delta % PRL)--masked hyperprolactinaemia--in all of the groups of diabetic girls was revealed. Cytological examination of vaginal smears confirmed hypoestrogenic status of girls from Group II compared with Group I and the control group.

Adolescent↗
PubMed1981

Effects of phentolamine on serum concentrations of TSH and thyroid hormones in hemithyreoidectomized rats.

The effects of phentolamine on the concentrations of TSH and the thyroid hormones in hemithyreoidectomized (hemiTXized) rats have been examined. Phentolamine caused a decrease of TSH level in blood serum 30 min after the injection, suggesting an inhibiting effect of phentolamine on TSH secretion. Thyroxine (T4) concentration decreased after 30 min. While triiodothyronine (T3) fell 60 min after the injection, as either a consequence of the earlier TSH fall or a result of a direct inhibiting effect of phentolamine at the thyroid level. Three repeated injections of phentolamine to hemiTXized rats brought about an increase in TSH level, in comparison with the hemiTXized control. This increase of TSH level may be explained as a "rebound effect" resulting from the earlier strong inhibition of TSH release by phentolamine. Another possible explanation is a longer inhibiting effect of phentolamine at the thyroid level than at the pituitary level. This assumption is supported by T3 concentration which, at the same time, remains still low.

Animals↗
PubMed1979

Serum immunoglobulins IgG and IgM in the seminal plasma of men with normospermia, oligozoospermia, and azoospermia.

The seminal plasma of eight males with normospermia, seven with oligozoospermia, and eight with azoospermia was examined for the presence of IgG and IgM by means of double-gel immunodiffusion. IgG was present in every seminal plasma sample. The highest titers of IgG were found in azoospermic and normospermic samples, but the lowest IgG titers were seen only in normospermic samples. IgM was detected only in some cases, mainly in the azoospermic group. Testicular biopsy was performed in all the azoospermic patients, but IgM was found only in the cases demonstrating spermatogenic arrest and was not found in the cases with complete spermatogenesis. It is concluded that the IgM present in the seminal plasma was of testicular origin and was associated with injury of the male genital system.

Adult↗
PubMed1979

Decrease of plasma somatotropin levels following thyroliberin (TRH) administration in patients with hyperthyroidism.

Thyroliberin was observed to induce a significant decrease of plasma somatotropin levels in patients with untreated hyperthyroidism, except those with very low initial somatotropin levels. These data have confirmed our previous finding where we noted that under the conditions of thyroid hormone excess thyroliberin was able to exert an inhibitory effect on somatotropin release.

Adolescent↗