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Biomedical subjects

A Safar

Publications and source records attributed to A Safar.

14 recordsLinked to original sources

[Effects of gonadoliberin administered nasally in cryptorchidism in aged 1 to 6].

93 cryptorchid boys aged 1 to 6 years were treated with nasal spray of LHRH according with two different protocols: 0.4 mg thrice daily during 28 consecutive days in 39 (32 uni and 7 bilaterally cryptorchid) and 0.4 mg twice daily on alternate days three days per week for 1 month in 32 and 3 months in 22 (34 uni and 20 bilaterally cryptorchid). The results did not vary according to age or to the protocol and duration of treatment. Complete testicular descent was obtained for only 10% of unilaterally undescended testes, and reached 29% in bilaterally undescended testes. These results do not relate to the more or less high position of the testis nor to hypothetical changes in plasma gonadotropins or testosterone. The treatment had very minor side-effects. For this reason, in spite of its very limited results, it may be used either as an attempt before surgery at 4-6 years or as a means to distinguish retractile from undescended testes.

Administration, Intranasal

[Cryptorchism].

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Child

Pituitary LH and FSH and testosterone secretion in infants with undescended testes.

Twelve male infants with undescended testes (5 bilaterally, 7 unilaterally) were studied between the ages of 1 week and 11 months. As in older pre-pubertal cryptorchid boys, a significant decrease of the LH response to LH-RH test was found, while basal plasma levels of gonadotrophins and FSH response to LH-RH were normal. Plasma testosterone levels were in the normal range, and Leydig cells responded to stimulation by HCG, the degree of this response being significantly and positively correlated to the LH peak elicited by LH-RH. It may be concluded that some early defect of the pituitary-Leydig cell axis is associated with undescended testis.

Chorionic Gonadotropin

[Infantile and juvenile hypothyroidism with the gland in place and low radio-iodide uptake].

27 hypothyroid infants of children, with a low iodine uptake in spite of a thyroid gland or thyroid tissue in normal pretracheal place, have been studied. 21 cases are related to primary thyroid involvement leading to vanishing iodine or technetium uptake. In 8 of these cases, clinical onset in late childhood, high frequency of antithyroid antibodies and of familial thyroid dysfunction were similar to those found in childhood's thyroiditis. 8 other cases had a precocious onset (first months in 6, first year in 1, second year in 1) with some pretracheal iodine uptake when first studied and no uptake at further examinations, 1 patient having received no treatment from first to second study, the others being without treatment from more than two months and certain of them receiving injections of TSH. The last 5 cases of this group were those of children born to 2 mothers with treated hypothyroidism, with low iodine uptake in pretracheal place. The role of genetic factors and auto-immunity in theses cases is discussed. The 6 other patients had clinically isolated hypothyroidism secondary to TSH deficiency, eventually associated to clinically inapparent GH or ACTH deficiencies, most of them by hypothalamic defect with normal response to TRH.

Adolescent

Partial trisomy 9q: a new syndrome.

Two unrelated patients with a strikingly similar phenotype (low birth weight and poor thriving; mental retardation; dolichocephaly; beaked nose; deeply set eyes; prominent maxilla and receding small chin; long fingers with a peculiar clench) were partially trisomic for two different segments of 9q. The segment found to be trisomic in both patients is small and corresponds to the q31q32 region. This new syndrome is compared to observations of trisomy 9 reported in the literature.

Blood Group Antigens

[Thyroid dysgenesis in mother and daughter].

A case of congenital hypothyroidism with lingual thyroid in a woman and her daughter is presented. The scarcity of familial cases of thyroid malformations leads to discuss the genetic factors involved.

Adult