Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UNIPROT:P02794 (ferritin)
 17,525 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Menorrhagia is the most frequent symptom in women with leiomyomata uteri. We induced transient hypoestrogenism with a gonadotropin-releasing hormone agonist, goserelin (Zoladex, I.C.I.), in a depot formulation, to resolve severe anemia in 16 women with uterine myomas. Subcutaneous administration of goserelin 3.6 mg was repeated every 28 days for 6 months. Thirteen patients became amenorrheic in 5 weeks and 3 reported scanty bleeding. Estradiol fell to postmenopausal levels after one month's treatment with hormonal surges on only three occasions. Uterine volume decreased by 49% after 3 months' treatment but subsequent reduction was not achieved. Mean hemoglobin rose from 7.4 g/dl pretreatment to 13.2 g/dl at 3 months (+78.3%) and mean hematocrit from 26.1% to 39.8% (+52.4%) without any further improvement. Serum ferritin increased constantly during the 6 months. Goserelin depot therapy in severely anemic patients with leiomyomas and menorrhagia is practical, safe and may avoid the need for preoperative transfusion.
 ...
PMID:Use of goserelin depot, a gonadotropin-releasing hormone agonist, for the treatment of menorrhagia and severe anemia in women with leiomyomata uteri. 214 63

To test the hypothesis that deficiencies in hypothalamic-pituitary function in genetic hemochromatosis result from cellular injury by iron deposits, we conducted provocative tests in 11 men with genetic hemochromatosis before and after iron depletion by serial phlebotomy and in 10 control subjects. We gave combination intravenous injections of insulin (0.15 U/kg), luteinizing hormone releasing hormone (LHRH, 100 micrograms), and thyrotropin releasing hormone (400 micrograms) and then measured plasma glucose, growth hormone, corticosteroids, follicle-stimulating hormone, luteinizing hormone, prolactin, and thyroid-stimulating hormone at 30-minute intervals for 90 minutes. Phlebotomy caused a substantial decrease in median values for serum ferritin, deferoxamine-chelatable iron, and hepatic iron concentration. Before phlebotomy, stimulation by hypoglycemia and thyrotropin releasing hormone caused significantly less secretion of growth hormone (P = 0.004) and prolactin (P = 0.03) in patients than in control subjects. No significant improvement was noted, however, in growth hormone or prolactin secretion after phlebotomy. Of the 11 patients, 7 had secondary hypogonadism, and phlebotomy did not improve the serum testosterone, follicle-stimulating hormone, luteinizing hormone, or responses to LHRH in any case. Chlorpromazine injections failed to elevate serum prolactin in all patients, and administration of levodopa caused a partial reduction in serum prolactin; thus, the hypothalamus may be an important locus of endocrine malfunction in these patients. We conclude that abnormal hypothalamic-pituitary function in genetic hemochromatosis is not substantially improved by iron-depletion therapy.
 ...
PMID:Influence of phlebotomy treatment on abnormal hypothalamic-pituitary function in genetic hemochromatosis. 310 26

Levels of testosterone, free testosterone, oestrogen, LH, FSH, prolactin were measured in 39 dialysed men. A LHRH stimulation test was performed. This study was analysed in function of the underlying renal disease, the duration of hemodialysis, and serum ferritin levels. In chronic glomerulonephritis serum gonadotrophins concentrations were significantly higher than in chronic interstitial nephritis or polycystic disease. A correlation between prolactin and ferritin was found, which may reflect the pituitary iron overload. Free testosterone levels were significantly lower in patients with gynecomastia (23-29 patients). In fact, the most direct relationship that we found with gynecomastia in dialysed men was with the free testosterone/oestrogen ratio.
 ...
PMID:[Anomalies of human gonadal function in periodic hemodialysis: role of the etiology of kidney failure and the role of iron overload]. 687 81