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https://www.readbyqxmd.com/read/25322266/whole-exome-sequencing-identifies-homozygous-gpr161-mutation-in-a-family-with-pituitary-stalk-interruption-syndrome
#1
Ender Karaca, Ramazan Buyukkaya, Davut Pehlivan, Wu-Lin Charng, Kursat O Yaykasli, Yavuz Bayram, Tomasz Gambin, Marjorie Withers, Mehmed M Atik, Ilknur Arslanoglu, Semih Bolu, Serkan Erdin, Ayla Buyukkaya, Emine Yaykasli, Shalini N Jhangiani, Donna M Muzny, Richard A Gibbs, James R Lupski
CONTEXT: Pituitary stalk interruption syndrome (PSIS) is a rare, congenital anomaly of the pituitary gland characterized by pituitary gland insufficiency, thin or discontinuous pituitary stalk, anterior pituitary hypoplasia, and ectopic positioning of the posterior pituitary gland (neurohypophysis). The clinical presentation of patients with PSIS varies from isolated growth hormone (GH) deficiency to combined pituitary insufficiency and accompanying extrapituitary findings. Mutations in HESX1, LHX4, OTX2, SOX3, and PROKR2 have been associated with PSIS in less than 5% of cases; thus, the underlying genetic etiology for the vast majority of cases remains to be determined...
January 2015: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/21032895/-stress-and-the-thyroid-gland
#2
REVIEW
L I Nadol'nik
The review highlights the effects of acute and chronic stress on thyroid metabolism. Special attention is paid to the influence of stress and the direct effects of glucocorticoids on the thyroid status, the activities of thyrocyte iodine uptake, oxidation and organification as well as peripheral metabolism of thyroid hormones (deposition and transport of thyroid hormones, deiodinase activities in different tissues). The role of stress in the development of thyroid pathology is analysed and characteristic features of thyroid function alterations during impaired functioning of the pitiutary-adrenal system are established...
July 2010: Biomedit︠s︡inskai︠a︡ Khimii︠a︡
https://www.readbyqxmd.com/read/19766543/heart-rate-variability-of-young-men-with-idiopathic-hypogonadotropic-hypogonadism
#3
Necip Ermis, Ferhat Deniz, Alper Kepez, Batuhan Kara, Omer Azal, Mustafa Kutlu
BACKGROUND: There is little data available regarding the effects of male sex hormones on cardiac autonomic function. The aim of this study is to evaluate the association between hormones of male hypothalamo-pitiutary-gonadal axis and cardiac autonomic function by comparing heart rate variability (HRV) parameters of young male idiopathic hypogonadotropic hypogonadism patients with those of healthy controls. METHODS: The study consisted of 22 male idiopathic hypogonadotropic hypogonadism patients (mean age 20...
January 15, 2010: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/5323607/the-intracellular-localization-of-pituitary-thyrotropic-hormone
#4
F S Greenspan, J R Hargadine
The intracellular localization of a bovine anterior pituitary preparation of thyroid-stimulating hormone (TSH) was studied in guinea pigs and dogs. The preparation was administered intravascularly or applied directly to tissue sections. TSH was detected by an indirect technique utilizing bovine TSH antiserum and fluorescein-labeled anti-rabbit globulin; the presence of TSH in the tissue was indicated by fluorescence when the tissue was examined under the microscope with an ultraviolet light source. After either intravascular administration or direct application of the TSH preparation, striking fluorescence was found in the nuclei of the thyroid cells and to a lesser degree in the nuclei of retro-orbital fat tissue and kidney tubules in both species studied...
July 1965: Journal of Cell Biology
https://www.readbyqxmd.com/read/4793408/-3-cases-of-pitiutary-adenoma-necrosis
#5
D Philippides, F Buchheit, D Maitrot
No abstract text is available yet for this article.
October 1973: Revue D'oto-neuro-ophtalmologie
https://www.readbyqxmd.com/read/4356264/quantitative-relations-of-fetal-and-maternal-pitiutary-adrenal-systems
#6
B T Jackson, H F Rauschecker, G J Piasecki
Even though certain aspects of the fetal pituitary-adrenal system have been extensively studied, much remains to be learned of its basic development and function. In the present work, the effect of maternal hypophysectomy upon quantitative pituitary-adrenal relations in mother and fetus was investigated in pregnant beagle dogs. At 57 days gestation in each of seven normal animals and seven animals 3 wk posthypophysectomy, a cannula for collection of adrenal effluent was placed in a single fetus in utero under halothane anesthesia...
December 1973: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/4287609/effects-of-norethandrolone-on-cortisone-induced-pitiutary-adrenal-suppression-in-the-rat
#7
J I Kitay, M D Coyne
No abstract text is available yet for this article.
May 1966: Acta Endocrinologica
https://www.readbyqxmd.com/read/1241848/-composite-microassays-of-plasma-progesterone-17alpha-oh-progestrerone-estrone-17beta-estradiol-and-estriol-in-normal-adult-women-i-assay-methods-and-steroid-patterns-in-normal-menstrual-cycle-author-s-transl
#8
H Suginami
Composite microassays for plasma progesterone (P), 17alpha-OH-progesterone (17P), estrone (E1), 17beta-estradiol (E2), and estriol (E3) were developed. Steroids were extracted from plasma samples with diethyl ether, and were separated from each other through two steps of sephadex LH-20 microcolumn chromatography (benzene:methanol 85:15, and n-hexane: benzene: methanol 80:10:10), prior to assays by radioimmunoassay (P, E1, E1, and E3) and competitive protein binding assay (17P). Steroids were recovered satisfactorily through these procedures (mean recovery; P:107...
November 20, 1975: Nihon Naibunpi Gakkai Zasshi
https://www.readbyqxmd.com/read/1167809/spontaneous-and-estrogen-produced-tumors-in-nb-rats-and-their-behavior-after-transplantation
#9
R L Noble, B C Hochachka, D King
Tumors in rats of the Nb strain, arising either spontaneously or after prolonged treatment with s.c. pellets of estrogen, were transplanted to establish whether hormone conditioning was required for their growth. Whereas all spontaneous tumors arising in males and many of those in females were autonomous on transplant, most of those arising in estrogenized rats continued to require hormones for growth after transplantation. The latter included carcinomas of the adrenal cortex, breast, pituitary ectopic tissue, ovary (thecomas), Leydig cells of testis, thymus, pancreas,salivary glands, oribital gland (fibroadenoma), liposarcoma, and lymphoma...
March 1975: Cancer Research
https://www.readbyqxmd.com/read/1093914/pituitary-responsiveness-to-luteinizing-hormone-releasing-hormone-in-insulin-dependent-diabetes-mellitus
#10
L A Distiller, J Sagel, J E Morley, H C Seftel
Impaired fertility and menstrual disturbances are common in diabetes mellitus. In order to study the effect of diabetes on gonadotropin secretion by the pituitary gland, twenty premenopausal diabetic females and seven diabetic males were investigated using luteinizing hormone-releasing hormone (LH-RH). Although the gonadotropes responded to LH-RH in the patients studied, a relative impairment was apparent when compared to normal matched control groups. In the female diabetic patients there was no difference in the gonadotropin responses obtained in those with oligomenorrhea or amenorrhea when compared to those with normal menses...
April 1975: Diabetes
https://www.readbyqxmd.com/read/870869/fetal-neurohypophyseal-arginine-vasopressin-and-arginine-vasotocin-in-man-and-sheep
#11
W R Skowsky, D A Fisher
Immunoreactive arginine vasopressin (AVP) and arginine vasotocin (AVT) were quantitated in 15 of 17 human fetal pituitary glands early in gestation (11-19 weeks) and in 8 of 9 ovine fetal pituitary glands late in gestation (109-137 days). In 14 of 15 human fetal glands, AVT content exceeded that of AVP. There was a significant rise of AVP (as a percentage of total AVP plus AVT content) with gestational age over the period of 12-19 weeks (P less than 00.01). The ovine fetal glands demonstrated a preponderance of AVP over AVT...
May 1977: Pediatric Research
https://www.readbyqxmd.com/read/380282/hypothalamic-pituitary-ovarian-interactions-during-reproductive-senescence-in-the-rat
#12
M M Wilkes, K H Lu, S L Fulton, S S Yen
The neuroendocrine status of Long-Evans female rats was evaluated at several key stages of reproductive senescence. Young (4-8 mo), middle-aged (10-14 mo) and old (24-30 mo) animals were studied according to reproductive state. The reproductive states studied were (1) regularly cycling, (2) constant estrus and (3) pseudopregnant, as determined by vaginal smear cytology. Neuroendocrine parameters at the levels of the hypothalamus, pituitary and steroid-producing organs were compared between each group. DA3, E and NE concentrations in the median eminence of the hypothalamus were determined by a highly sensitive radioenzymatic assay...
1978: Advances in Experimental Medicine and Biology
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