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https://www.readbyqxmd.com/read/28646567/severe-menses-associated-hypertension-successfully-treated-with-gonadotropin-releasing-hormone-agonist
#1
Luke J Laffin, Munnam S Jafar, George L Bakris
A case of a 32-year-old nulliparous white woman referred for a 5-year history of severe hypertension, hypokalemia, and resultant systolic dysfunction is presented. She additionally had a left ventricular ejection fraction of 30% including left ventricular dilation and normal left ventricular mass index, as measured by cardiac magnetic resonance imaging when she initially presented to us. Her history revealed that her severe hypertension episodes were monthly and would occur around the catamenial (menses-associated) time...
June 23, 2017: Journal of Clinical Hypertension
https://www.readbyqxmd.com/read/28645895/multiparity-improves-outcomes-after-cerebral-ischemia-in-female-mice-despite-features-of-increased-metabovascular-risk
#2
Rodney M Ritzel, Anita R Patel, Monica Spychala, Rajkumar Verma, Joshua Crapser, Edward C Koellhoffer, Anna Schrecengost, Evan R Jellison, Liang Zhu, Venugopal Reddy Venna, Louise D McCullough
Females show a varying degree of ischemic sensitivity throughout their lifespan, which is not fully explained by hormonal or genetic factors. Epidemiological data suggest that sex-specific life experiences such as pregnancy increase stroke risk. This work evaluated the role of parity on stroke outcome. Age-matched virgin (i.e., nulliparous) and multiparous mice were subjected to 60 min of reversible middle cerebral artery occlusion and evaluated for infarct volume, behavioral recovery, and inflammation. Using an established mating paradigm, fetal microchimeric cells present in maternal mice were also tracked after parturition and stroke...
June 23, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28641780/associations-of-maternal-prenatal-smoking-with-umbilical-cord-blood-hormones-the-project-viva-cohort
#3
Abby F Fleisch, Sheryl L Rifas-Shiman, Lisa B Rokoff, Marie-France Hivert, Christos S Mantzoros, Emily Oken
BACKGROUND: Maternal smoking during pregnancy is associated with low fetal growth and adverse cardiometabolic health in offspring. However, hormonal pathways underlying these associations are unclear. Therefore, we examined maternal smoking habits and umbilical cord blood hormone profiles in a large, prospective cohort. METHODS: We studied 978 mother/infant pairs in Project Viva, a Boston-area cohort recruited 1999-2002. We categorized mothers as early pregnancy smokers, former smokers, or never smokers...
July 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28641524/the-bio-psycho-social-dimension-in-women-s-sexual-desire-argumentum-ad-novitatem
#4
Nur Syazwani Roslan, Nik Ruzyanei Nik Jaafar, Hatta Sidi, Najwa Baharuddin, Jaya Kumar, Srijit Das, Nik Hazlina Nik Hussein
Sexual desire includes complex motivation and drive. In the context of biological and cognitive-emotive state art of science, it is often a neglected field in medicine. With regard to the treatment, study on women's sexual function received less attention compared to the men's sexuality. In the past, this endeavor was relatively not well disseminated in the scientific community. Recently, there was a revolutionized surge of drug targets available to treat women with low sexual desire. It is timely to review the relevant biological approach, especially in the context of pharmacotherapy to understand this interesting clinical entity which was modulated by numerous interactive psychosocial inter-play and factors...
June 21, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/28641505/in-utero-exposure-to-di-n-butyl-phthalate-induces-morphological-and-biochemical-changes-in-rats-postpuberty
#5
Yuya Okayama, Shin Wakui, Michael F Wempe, Mitsuru Sugiyama, Masaya Motohashi, Tomoko Mutou, Hiroyuki Takahashi, Eisuke Kume, Hiroshi Ikegami
Pregnant Sprague-Dawley rats were orally administered di( n-butyl)phthalate (DBP; 100 mg/kg/day) on gestation days (GD) 12 to 21. We investigated the male offspring and probed morphological alterations in Sertoli cells at 7, 9, 14, and 17 weeks of age. Parameters assessed in this study included offspring number, sex ratios, body weights, testis weights, seminiferous tubule (ST) profile numbers and diameters, number of vimentin-labeled Sertoli cells, and both testosterone and follicle-stimulating hormone (FSH) levels...
June 2017: Toxicologic Pathology
https://www.readbyqxmd.com/read/28640164/associations-between-postmenopausal-endogenous-sex-hormones-and-c-reactive-protein-a-clearer-picture-with-regional-adiposity-adjustment
#6
Shannon M Conroy, Heather K Neilson, Rachel O'Reilly, Christy G Woolcott, Frank Z Stanczyk, Kerry S Courneya, Christine M Friedenreich
OBJECTIVE: To better understand the pathogenesis of inflammatory-related diseases after menopause, we studied the adiposity-independent association between endogenous sex hormones and C-reactive protein (CRP), a biomarker of inflammation. METHODS: We conducted a secondary, cross-sectional analysis of baseline data from the Alberta Physical Activity and Breast Cancer Prevention Trial (2003-2007), including 319 healthy, postmenopausal women not using hormone therapy...
June 19, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28638366/gonadotropin-releasing-hormone-and-its-role-in-the-enteric-nervous-system
#7
REVIEW
Bodil Ohlsson
Gonadotropin-releasing hormone (GnRH), follicle-stimulating hormone, and luteinizing hormone orchestrate the reproduction cycle and regulate the sex steroid secretion from the gonads. In mammals, GnRH1 is secreted as a hormone from the hypothalamus, whereas both GnRH1 and GnRH2 are present as neurotransmitters/peptides in various tissues, where the peptides exert many different effects. mRNA coding for GnRH1 and GnRH2 have been described in the human gastrointestinal tract, and GnRH has been found in both submucosal and myenteric neurons...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28637499/diagnostic-relevance-of-urinary-steroid-profiles-on-ovarian-granulosa-cell-tumors-two-case-reports
#8
Anita Bufa, Nelli Farkas, Zsolt Preisz, Viktória Poór, Csilla Páger, Sándor Szukits, Bálint Farkas, Péter Miklós Gőcze
BACKGROUND: Granulosa cell tumor of the ovary is the most frequent sex cord stromal tumor and represents 2 to 5% of all primary ovarian cancers. Ovarian granulosa cell tumor is a malignant tumor with slow progression and in some cases this tumor is hormonally active. The recurrence of granulosa cell tumor often happens after 5 years. CASE PRESENTATION: We describe two cases of postmenopausal women with adult-type granulosa cell tumors of the ovary. Patient 1 is a 49-year-old European woman with a recurrent tumor; patient 2 is a 55-year-old European woman without recurrence of tumor...
June 22, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28637469/impact-of-phthalate-and-bpa-exposure-during-in-utero-windows-of-susceptibility-on-reproductive-hormones-and-sexual-maturation-in-peripubertal-males
#9
Deborah J Watkins, Brisa N Sánchez, Martha Maria Téllez-Rojo, Joyce M Lee, Adriana Mercado-García, Clara Blank-Goldenberg, Karen E Peterson, John D Meeker
BACKGROUND: Phthalates and BPA are endocrine disrupting chemicals (EDCs) widely used in consumer products. Evidence suggests that phthalate and BPA exposure alters steroid hormone levels in adults, while in utero exposure has been associated with altered fetal reproductive development in boys. However, the impact of exposure during distinct critical windows of in utero development on hormone concentrations and sexual maturation during the pubertal transition has not been examined. The objective of this study was to assess trimester-specific in utero phthalate and BPA exposure in relation to measures of reproductive development among peripubertal boys in a Mexico City birth cohort...
June 21, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/28636986/the-positivity-of-g-protein-coupled-receptor-30-gpr-30-an-alternative-estrogen-receptor-is-not-different-between-type-1-and-type-2-endometrial-cancer
#10
Jiayi Wan, Yongxiang Yin, Min Zhao, Fang Shen, Miaoxin Chen, Qi Chen
It is well-known that the clinical outcomes are different between type 1 (estrogen dependent) and type 2 (estrogen independent) endometrial cancer. Studies have suggested that the estrogen receptor (ER) is positively correlated with endometrial cancer survival, however we previously reported that there is no difference in the positivity of ER as well as sex hormone levels between subtypes of cancer. G-protein-coupled receptor-30 (GPR 30), an alternative estrogen receptor has been suggested to be negatively correlated with clinical outcomes of endometrial cancer...
June 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636803/atorvastatin-attenuates-testosterone-induced-benign-prostatic-hyperplasia-in-rats-role-of-peroxisome-proliferator-activated-receptor-%C3%AE-and-cyclo-oxygenase-2
#11
Ismail O Ishola, Habeeb K Tijani, Olufunke O Dosumu, Charles C Anunobi, Tolulope O Oshodi
Diabetes and obesity have been reported to alter sex steroid hormone metabolism. In this study, an attempt was made to investigate the protective effect of atorvastatin (ATR) in combination with celecoxib (CEL) or pioglitazone (PIO) on testosterone-induced BPH in rats. Male Wistar rats (200-250 g) were randomly divided into 9 groups (n=8) and orally treated as follows for 28 consecutive days; Group 1: vehicle (10 ml/kg), group 2: vehicle (10 ml/kg), groups 3 - 5: ATR (0.5, 2.5 and 5 mg/kg, respectively); group 6: CEL (20 mg/kg); Group 7: PIO (20 mg/kg); Groups 8-9: ATR 0...
June 21, 2017: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/28636075/molecular-cloning-mrna-expression-and-biological-activity-of-the-pheromone-biosynthesis-activating-neuropeptide-pban-from-the-european-corn-borer-ostrinia-nubilalis
#12
J Fodor, G Köblös, Á Kákai, Z Kárpáti, B P Molnár, T Dankó, G Bozsik, C Bognár, G Szőcs, A Fónagy
Pheromone biosynthesis activating neuropeptide (PBAN) is a member of the pyrokinin (FXPRLamide) insect neuropeptides. Here, we report the cloning of the gene Ostnu-PBAN from the E and Z pheromone strains of the European corn borer (ECB), Ostrinia nubilalis (Lepidoptera: Crambidae), a major pest of maize. The Ostnu-PBAN genomic sequence is > 5 kb in length and consists of six exons. The deduced amino acid sequence revealed a 200-residue precursor protein including a signal peptide, a 24-amino acid (aa) diapause hormone, a 37-aa PBAN and three other FXPRLamide neuropeptides...
June 21, 2017: Insect Molecular Biology
https://www.readbyqxmd.com/read/28635127/cardiovascular-risk-score-is-linked-to-subcutaneous-adipocyte-size-and-lipid-metabolism
#13
Mikael Rydén, Peter Arner
OBJECTIVE: Although white adipose tissue mass and distribution correlates with cardiovascular disease, the fat cell-specific perturbations underlying this association are not known. We determined the relationship between adipocyte size and lipid metabolism with cardiovascular risk. DESIGN/SUBJECTS: Adipocyte size as well as spontaneous (basal) and hormone-stimulated effects on adipocyte lipid metabolism (lipolysis and lipogenesis) were investigated in abdominal subcutaneous adipose tissue of 304 men and 775 women...
June 21, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28634267/30-years-of-the-mineralocorticoid-receptor-the-role-of-the-mineralocorticoid-receptor-in-the-vasculature
#14
REVIEW
Jennifer J DuPont, Iris Z Jaffe
Since the mineralocorticoid receptor (MR) was cloned 30 years ago, it has become clear that MR is expressed in extra-renal tissues, including the cardiovascular system, where it is expressed in all cells of the vasculature. Understanding the role of MR in the vasculature has been of particular interest as clinical trials show that MR antagonism improves cardiovascular outcomes out of proportion to changes in blood pressure. The last 30 years of research have demonstrated that MR is a functional hormone-activated transcription factor in vascular smooth muscle cells and endothelial cells...
July 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28634006/testosterone-differentially-affects-t-cells-and-neurons-in-murine-and-human-models-of-neuroinflammation-and-neurodegeneration
#15
Megan G Massa, Christina David, Stefanie Jörg, Johannes Berg, Barbara Gisevius, Sarah Hirschberg, Ralf A Linker, Ralf Gold, Aiden Haghikia
The high female-to-male sex ratio of multiple sclerosis (MS) prevalence has continuously confounded researchers, especially in light of male patients' accelerated disease course at later stages of MS. Although multiple studies have concentrated on estrogenic mechanisms of disease modulation, fairly little attention has been paid to androgenic effects in a female system, and even fewer studies have attempted to dissociate hormonal effects on the neurodegenerative and neuroinflammatory processes of MS. Herein, we demonstrate the differential effects of hormone treatment on the acute inflammatory and chronic neurodegenerative phases of murine experimental autoimmune encephalomyelitis...
July 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28632505/obesity-and-prostate-cancer
#16
Marco Bandini, Giorgio Gandaglia, Alberto Briganti
PURPOSE OF REVIEW: To investigate the association between obesity and prostate cancer (PCa). RECENT FINDINGS: Obesity has been proposed to be involved in the pathogenesis of PCa through different biological mechanisms that include deregulation of the insulin axis, sex hormone secretion, adipokines signaling, and oxidative stress. Hypertrophic peritumoral adipocytes may also facilitate the local spread of PCa through the chemo-attraction of tumor cells. Clinical studies demonstrate that obesity might have clinical implications also in disease detection and management...
June 16, 2017: Current Opinion in Urology
https://www.readbyqxmd.com/read/28631840/the-effect-of-infant-vocalization-in-alloparental-responsiveness-of-common-marmosets-callithrix-jacchus
#17
Maricele Nascimento Barbosa, Maria Teresa da Silva Mota, Marcela Nascimento Barbosa
Among mammals, alloparental care can be influenced by hormones as well as by previous experience and sensory stimuli from the infants, such as sight and sound, smell, and physical contact with the infant. To determine the responsiveness of common marmoset (Callithrix jacchus) nonreproductive females and males with and without previous experience in caretaking to infant sensory cues, we exposed 12 females and 12 males to vocalization recordings for 10 min under two conditions: (1) exposure to adult conspecific vocalization recordings, and (2) exposure to infant vocalization recordings...
June 20, 2017: American Journal of Primatology
https://www.readbyqxmd.com/read/28631746/prevalence-of-androgen-deficiency-in-chronic-spinal-cord-injury-patients-suffering-from-erectile-dysfunction
#18
M Behnaz, Z Majd, M Radfar, H Ajami, M Qorbani, A Kokab
STUDY DESIGN: Retrospective cross-sectional study. OBJECTIVES: To estimate the prevalence of biochemical androgen deficiency in Iranian spinal cord injured men suffering from erectile dysfunction (ED) and to determine factors related to this problem. SETTING: An andrology clinic of a teaching hospital in Tehran. METHODS: Men, 18 years of age and older, with chronic (>2 years) spinal cord injury (SCI) suffering from ED were recruited...
June 20, 2017: Spinal Cord
https://www.readbyqxmd.com/read/28631236/use-of-ctx-i-and-pinp-as-bone-turnover-markers-national-bone-health-alliance-recommendations-to-standardize-sample-handling-and-patient-preparation-to-reduce-pre-analytical-variability
#19
P Szulc, K Naylor, N R Hoyle, R Eastell, E T Leary
N-terminal propeptide of type I procollagen and C-terminal telopeptide of type I collagen are the reference standards for bone turnover markers for monitoring osteoporosis treatment. We provide recommendations for standardized sample handling and encompassing aspects of preanalytical variability to improve the reproductibility of their measurements, their reliability, and clinical interpretation. The International Osteoporosis Foundation and International Federation of Clinical Chemistry bone turnover marker standards working group have identified N-terminal propeptide of type I procollagen (PINP) and C-terminal telopeptide of type I collagen (CTX-I) in the blood to be the international reference standards for bone turnover markers for the prediction of fracture risk and monitoring of osteoporosis treatment...
June 19, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28630662/sex-differences-in-endogenous-cortical-network-activity-spontaneously-recurring-up-down-states
#20
Charalambos Sigalas, Eleni Konsolaki, Irini Skaliora
BACKGROUND: Several molecular and cellular processes in the vertebrate brain exhibit differences between males and females, leading to sexual dimorphism in the formation of neural circuits and brain organization. While studies on large-scale brain networks provide ample evidence for both structural and functional sex differences, smaller-scale local networks have remained largely unexplored. In the current study, we investigate sexual dimorphism in cortical dynamics by means of spontaneous Up/Down states, a type of network activity that is exhibited during slow-wave sleep, quiet wakefulness, and anesthesia and is thought to represent the default activity of the cortex...
2017: Biology of Sex Differences
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