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https://www.readbyqxmd.com/read/28343323/post-traumatic-sleep-wake-disorders
#1
REVIEW
Tatyana Mollayeva, Andrea D'Souza, Shirin Mollayeva, Angela Colantonio
All living organisms that face a traumatic life event are susceptible to sleep-wake disturbances. Stress, which can result in trauma, evokes a high level of physiological arousal associated with sympathetic nervous system activation, during both sleep and wakefulness. Heredity, sex hormones, early losses, developmental factors and intra- and interpersonal conflicts, contribute to the level of baseline physiological arousal, producing either subclinical, clinical or complex clinical traits, acutely and at any time after exposure to a traumatic event...
April 2017: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/28340373/influence-of-sex-on-cardiovascular-drug-responses-role-of-estrogen
#2
REVIEW
Abdel A Abdel-Rahman
In this review we discuss the sex/estrogen-specific modulation of cardiovascular function and responses to current therapeutics. We discuss how anatomical differences such as a smaller kidney size, and lower glomerular filtration rate in females, reduce the clearance and increase the toxicity of some drugs in females. Other important sex differences include the dampening effect of estrogen on central sympathetic and renin angiotensin systems. Further, we discuss how a shift in myocardial redox status leads to paradoxical transformation of estrogen into a pro-inflammatory hormone...
March 21, 2017: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/28339967/placental-transporter-localization-and-expression-in-the-human-the-importance-of-species-sex-and-gestational-age-differences1
#3
Natasha Walker, Panagiotis Filis, Ugo Soffientini, Michelle Bellingham, Peter J O'Shaughnessy, Paul A Fowler
The placenta is a critical organ during pregnancy, essential for the provision of an optimal intrauterine environment, with fetal survival, growth and development relying on correct placental function. It must allow nutritional compounds and relevant hormones to pass into the fetal bloodstream and metabolic waste products to be cleared. It also acts as a semi-permeable barrier to potentially harmful chemicals both endogenous and exogenous. Transporter proteins allow for bidirectional transport and are found in the syncytiotrophoblast of the placenta and endothelium of fetal capillaries...
March 7, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28336768/care-of-girls-and-women-with-turner-syndrome-beyond-growth-and-hormones
#4
Caroline Culen, Diana-Allexandra Ertl, Katharina Schubert, Lisa Bartha-Doering, Gabriele Haeusler
Turner syndrome (TS), although considered a rare disease, is the most common sex chromosome abnormality in women, with an incident of 1 in 2,500 female births. TS is characterized by distinctive physical features such as short stature, ovarian dysgenesis, an increased risk for heart and renal defects as well as a specific cognitive and psychosocial phenotype. Given the complexity of the condition, patients face manifold difficulties which increase over the lifespan. Furthermore, failures during the transitional phase to adult care result in moderate health outcomes and decreased quality of life...
March 23, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28336049/hypothyroidism
#5
REVIEW
Layal Chaker, Antonio C Bianco, Jacqueline Jonklaas, Robin P Peeters
Hypothyroidism is a common condition of thyroid hormone deficiency, which is readily diagnosed and managed but potentially fatal in severe cases if untreated. The definition of hypothyroidism is based on statistical reference ranges of the relevant biochemical parameters and is increasingly a matter of debate. Clinical manifestations of hypothyroidism range from life threatening to no signs or symptoms. The most common symptoms in adults are fatigue, lethargy, cold intolerance, weight gain, constipation, change in voice, and dry skin, but clinical presentation can differ with age and sex, among other factors...
March 20, 2017: Lancet
https://www.readbyqxmd.com/read/28334178/inter-regional-variations-in-gene-expression-and-age-related-cortical-thinning-in-the-adolescent-brain
#6
Angelita Pui-Yee Wong, Leon French, Gabriel Leonard, Michel Perron, G Bruce Pike, Louis Richer, Suzanne Veillette, Zdenka Pausova, Tomáš Paus
Age-related decreases in cortical thickness observed during adolescence may be related to fluctuations in sex and stress hormones. We examine this possibility by relating inter-regional variations in age-related cortical thinning (data from the Saguenay Youth Study) to inter-regional variations in expression levels of relevant genes (data from the Allen Human Brain Atlas); we focus on genes coding for glucocorticoid receptor (NR3C1), androgen receptor (AR), progesterone receptor (PGR), and estrogen receptors (ESR1 and ESR2)...
February 25, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28333906/-phonosurgery-treatment-options-in-male-to-female-and-female-to-male-transsexuals
#7
Bożena Kosztyła-Hojna, Greta Berger, Vitaly Gryniewicz, Eugeniusz Tarasów
The voice is an important part of human identity. The voice is susceptible to impact of hormons mainly sexual hormons. The larynx is one of secondary sex characacteristics. Disorders of voice pose serious obstacle to full social integration in male to female and female to male transsexuals. The causes of transsexuality are still a matter of considerable debate. Now it is considered that, big nucleus suprachiasmaticus in the hypothalamus may be a cause of transsexuality. The aim of phonosurgery in transsexual patients is to gain acceptable voice by the patients...
March 21, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28333384/transcriptional-regulation-of-adipogenesis
#8
Paula Mota de Sá, Allison J Richard, Hardy Hang, Jacqueline M Stephens
Adipocytes are the defining cell type of adipose tissue. Once considered a passive participant in energy storage, adipose tissue is now recognized as a dynamic organ that contributes to several important physiological processes, such as lipid metabolism, systemic energy homeostasis, and whole-body insulin sensitivity. Therefore, understanding the mechanisms involved in its development and function is of great importance. Adipocyte differentiation is a highly orchestrated process which can vary between different fat depots as well as between the sexes...
March 16, 2017: Comprehensive Physiology
https://www.readbyqxmd.com/read/28332369/gender-specific-associations-between-chgb-genetic-variants-and-schizophrenia-in-a-korean-population
#9
Joong Gon Shin, Jeong Hyun Kim, Chul Soo Park, Bong Jo Kim, Jae Won Kim, Ihn Geun Choi, Jaeuk Hwang, Hyoung Doo Shin, Sung Il Woo
PURPOSE: Schizophrenia is a devastating mental disorder and is known to be affected by genetic factors. The chromogranin B (CHGB), a member of the chromogranin gene family, has been proposed as a candidate gene associated with the risk of schizophrenia. The secretory pathway for peptide hormones and neuropeptides in the brain is regulated by chromogranin proteins. The aim of this study was to investigate the potential associations between genetic variants of CHGB and schizophrenia susceptibility...
May 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/28332194/high-serum-vitamin-d-level-correlates-with-better-prognostic-indicators-in-primary-melanoma-a-pilot-study
#10
Alvin Lim, Ramin Shayan, George Varigos
BACKGROUND/OBJECTIVES: Sunlight is a major risk factor for cutaneous melanoma. However, its interaction with melanoma is complex. In particular, vitamin D is a UVB-derived hormone that has been shown to have anti-cancer effects. In this retrospective pilot study we sought to determine an association between the clinicopathological features of melanoma and the patients' corresponding serum vitamin D level. METHODS: In total, 109 primary melanomas diagnosed between 2001 and 2013 were retrospectively identified from our institutional database with a corresponding 25-hydroxyvitamin D3 level estimated within 6 months of diagnosis...
March 23, 2017: Australasian Journal of Dermatology
https://www.readbyqxmd.com/read/28332107/mechanisms-driving-gender-differences-in-asthma
#11
REVIEW
Hubaida Fuseini, Dawn C Newcomb
PURPOSE OF REVIEW: Many phenotypes of asthma exist, ranging from mild asthma with onset during childhood to severe asthma with later onset, making asthma a broad disease with different pathologies. A gender disparity exists in asthma prevalence. As adults, women have an increased asthma prevalence compared to men. Further, women are more likely to have severe asthma and a later onset of asthma compared to men. Here, we review clinical and animal studies that have defined the role of sex hormones in airway inflammation, smooth muscle contraction, mucus production, and airway mechanics associated with asthma pathogenesis...
March 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28332021/female-hormone-17%C3%AE-estradiol-downregulated-mmp-2-expression-and-upregulated-a1pi-expression-in-human-corneal-stromal-cells
#12
Hongbo Yin, Qi Wan, Yan Tian, Bo Zhao, Yingping Deng
Collagens are essential for cornea functions. In non-ocular tissues, it has been demonstrated that sex hormones modulate the collagen remodeling. In this study, we investigated whether the primary female hormone 17β-estradiol plays a role in the expressions of matrix metalloproteinases and proteinase inhibitors in cultured human corneal stromal cells. We found that 17β-estradiol treatment significantly reduced the matrix metalloproteinase-2 mRNA in human corneal stromal cells as well as the matrix metalloproteinase-2 proteins, while the matrix metalloproteinase-9 mRNA level was not significantly altered...
March 23, 2017: Cell Biochemistry and Biophysics
https://www.readbyqxmd.com/read/28330882/adiponectin-and-resistin-a-role-in-the-hypothalamo-pituitary-gonadal-axis
#13
Agnieszka Rak, Namya Mellouk, Pascal Froment, Joëlle Dupont
Adipokines, including adiponectin and resistin, are cytokines produced mainly by adipose tissue. They play a significant role in the metabolic functions that regulate insulin sensitivity and inflammation. Alteration of adiponectin and resistin plasma levels, or their expression in metabolic and gonadal tissue, are observed in some metabolic pathologies, such as obesity. Several studies have shown that these two hormones and the receptors for adiponectin, AdipoR1 and AdipoR2, are present in various reproductive tissues in both sexes of different species...
March 22, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28330858/prolactin-up-regulates-female-predominant-cyp-gene-expressions-and-down-regulates-male-predominant-gene-expressions-in-mice-liver
#14
Yuya Sato, Yoshikatsu Kaneko, Takamasa Cho, Kei Goto, Tadashi Otsuka, Suguru Yamamoto, Shin Goto, Hiroki Maruyama, Ichiei Narita
Prolactin is a polypeptide hormone with over 300 separate biological activities and its serum level is increased during pregnancy and lactation. It has been described that pregnancy and lactation affect drug and steroid metabolism in mice and humans. Several studies reported that pregnancy or lactation influences liver cytochrome P450 (Cyp) expression and its activity, affecting the biosynthesis of steroids and xenobiotics through growth hormone or sex hormones; however, the role of prolactin as the regulator of liver Cyp expression has not been elucidated so far...
March 22, 2017: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/28329583/dermatologic-care-of-the-transgender-patient
#15
Timothy Hermosura Almazan, Filamer D Kabigting
Literature is limited regarding the medical and cosmetic dermatologic issues pertinent to transgender patients and the reasons why 19 transgender individuals seek care from dermatologists. Clinical management of this population has historically been limited to 20 mental health providers, endocrinologists, and select surgeons with expertise in sex reassignment surgery. The impact of hormonal 21 therapy on transgender skin has been well documented in endocrinology journals, but is underrepresented in dermatology 22 literature...
October 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28329361/sex-hormones-affect-outcome-in-arrhythmogenic-right-ventricular-cardiomyopathy-dysplasia-from-a-stem-cell-derived-cardiomyocyte-based-model-to-clinical-biomarkers-of-disease-outcome
#16
Deniz Akdis, Ardan M Saguner, Khooshbu Shah, Chuanyu Wei, Argelia Medeiros-Domingo, Arnold von Eckardstein, Thomas F Lüscher, Corinna Brunckhorst, H S Vincent Chen, Firat Duru
Aims: Arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D) is characterized by fibrofatty infiltration of the myocardium and ventricular arrhythmias that may lead to sudden cardiac death. It has been observed that male patients develop the disease earlier and present with more severe phenotypes as compared to females. Thus, we hypothesized that serum levels of sex hormones may contribute to major arrhythmic cardiovascular events (MACE) in patients with ARVC/D. Methods and results: The serum levels of five sex hormones, sex hormone-binding globulin, high sensitivity troponin T, pro-brain natriuretic peptide, cholesterol, triglycerides, insulin, and glucose were measured in 54 ARVC/D patients (72% male)...
February 18, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28329228/gender-differences-in-the-effects-of-cardiovascular-drugs
#17
J Tamargo, G Rosano, W Thomas, J Duarte, A Niessner, J C Kaski, C Cecconi, H Drexel, K Kjeldsen, G Savarese, C Torp-Pedersen, D Atar, B S Lewis, S Agewall
Although sex-specific differences in cardiovascular medicine are well-known, the exact influences of sex on the effect of cardiovascular drugs remain unclear. Women and men differ in body composition and physiology (hormonal influences during the menstrual cycle, menopause and pregnancy) and they present differences in drug pharmacokinetics (absorption, distribution, metabolism and excretion) and pharmacodynamics, so that is not rare that they may respond differently to cardiovascular drugs. Furthermore, women are also less often treated with evidence-based drugs thereby preventing optimization of therapeutics for women of all ages, experience more relevant adverse drug reactions than men, and remain under-represented in most clinical trials...
February 28, 2017: European Heart Journal. Cardiovascular Pharmacotherapy
https://www.readbyqxmd.com/read/28329004/gnrh-mediated-olfactory-and-visual-inputs-promote-mating-like-behaviors-in-male-zebrafish
#18
Lei Li, Jennifer L Wojtowicz, John H Malin, Tao Huang, Eric B Lee, Zijiang Chen
The engagement of sexual behaviors is regulated by a number of factors which include gene expression, hormone circulation, and multi-sensory information integration. In zebrafish, when a male and a female are placed in the same container, they show mating-like behaviors regardless of whether they are kept together or separated by a net. No mating-like behaviors are observed when same-sex animals are put together. Through the olfacto-visual centrifugal pathway, activation of the terminalis nerve in the olfactory bulb increases GnRH signaling in the brain and triggers mating-like behaviors between males...
2017: PloS One
https://www.readbyqxmd.com/read/28327105/association-of-physical-activity-on-body-composition-cardiometabolic-risk-factors-and-prevalence-of-cardiovascular-disease-in-the-korean-population-from-the-fifth-korea-national-health-and-nutrition-examination-survey-2008-2011
#19
Gwang-Sil Kim, Eui Im, Ji-Hyuck Rhee
BACKGROUND: Data regarding associations among physical activity (PA) level, body composition, and prevalence of cardiovascular diseases in Asian populations are rare. METHODS: The International Physical Activity Questionnaire (IPAQ) was utilized to estimate PA levels and analyze the association of PA level with various body composition parameters and the prevalence of cardiovascular diseases by using data from the Korean National Health and Nutrition Examination Survey from 2008 to 2011...
March 21, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28326829/endogenous-sex-hormone-levels-and-coronary-heart-disease-risk-in-postmenopausal-women-a-meta-analysis-of-prospective-studies
#20
Haihui Wang, Yuehua Li, Xinlu Wang, Jianhong Bu, Guoliang Yan, Danfei Lou
Background Low testosterone levels have been associated with coronary heart disease (CHD) morbidity and mortality in men, but the influence of hormones in postmenopausal women is unclear. This meta-analysis aimed to examine whether there is an association between endogenous sex hormones and CHD risk in postmenopausal women. Methods A systematic search of the PubMed and EMBASE databases from 1966 to 30 November 2016 was performed for prospective studies that reported an association between endogenous sex hormones and CHD in postmenopausal women...
April 2017: European Journal of Preventive Cardiology
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