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https://www.readbyqxmd.com/read/28343092/the-impact-of-cumulative-pain-stress-on-neurobehavioral-development-of-preterm-infants-in-the-nicu
#1
Xiaomei Cong, Jing Wu, Dorothy Vittner, Wanli Xu, Naveed Hussain, Shari Galvin, Megan Fitzsimons, Jacqueline M McGrath, Wendy A Henderson
BACKGROUND: Vulnerable preterm infants experience repeated and prolonged pain/stress stimulation during a critical period in their development while in the neonatal intensive care unit (NICU). The contribution of cumulative pain/stressors to altered neurodevelopment remains unclear. The study purpose was to investigate the impact of early life painful/stressful experiences on neurobehavioral outcomes of preterm infants in the NICU. METHODS: A prospective exploratory study was conducted with fifty preterm infants (28 0/7-32 6/7weeks gestational age) recruited at birth and followed for four weeks...
March 23, 2017: Early Human Development
https://www.readbyqxmd.com/read/28342855/regulation-of-reproduction-via-tight-control-of-gonadotropin-hormone-levels
#2
Djurdjica Coss
Mammalian reproduction is controlled by the hypothalamic-pituitary-gonadal axis. GnRH from the hypothalamus regulates synthesis and secretion of gonadotropins, LH and FSH, which then control steroidogenesis and gametogenesis. In females, serum LH and FSH levels exhibit rhythmic changes throughout the menstrual or estrous cycle that are correlated with pulse frequency of GnRH. Lack of gonadotropins leads to infertility or amenorrhea. Dysfunctions in the tightly controlled ratio due to levels slightly outside the normal range occur in a larger number of women and are correlated with polycystic ovaries and premature ovarian failure...
March 22, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28339573/augmented-h2s-production-via-cystathionine-beta-synthase-upregulation-plays-a-role-in-pregnancy-associated-uterine-vasodilation%C3%A2
#3
Lili Sheibani, Thomas J Lechuga, Honghai Zhang, Afshan Hameed, Deborah A Wing, Sathish Kumar, Charles R Rosenfeld, Dong-Bao Chen
Endogenous hydrogen sulfide (H2S) synthesized via metabolizing L-cysteine by cystathionine-beta-synthase (CBS) and cystathionine-gamma-lyase (CSE) is a potent vasodilator and angiogenic factor. The objectives of this study were to determine if human uterine artery (UA) H2S production increases with augmented expression and/or activity of CBS and/or CSE during the menstrual cycle and pregnancy and whether exogenous H2S dilates UA. Uterine arteries from nonpregnant (NP) premenopausal proliferative (pPRM) and secretory (sPRM) phases of the menstrual cycle and pregnant (P) women were studied...
January 24, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28338206/impact-and-clinical-significance-of-embosphere-microsphere-artery-embolization-therapy-in-serum-vegf-expression-level-of-women-patients-with-uterine-fibroids
#4
H-X Ge, W Xu, D-Q Du, A-J Wang
OBJECTIVE: We aimed to investigate the effect of Embosphere microsphere artery embolization on the serum level of vascular endothelial growth factor (VEGF) in patients with uterine fibroid. PATIENTS AND METHODS: From March 2014 to December 2015, 128 women in child-bearing age with uterine intramural fibroids were enrolled in the patient group. At the same time, 128 healthy cases in child-bearing age were randomly selected and enrolled in the control group. Enzyme-linked immunosorbent assay was used to measure the serum level of VEGF, and immunohistochemical staining method was used to study the expression of VEGF in the uterine fibroids...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28337936/females-exposed-to-24%C3%A2-h-of-sleep-deprivation-do-not-experience-greater-physiological-strain-but-do-perceive-heat-illness-symptoms-more-severely-during-exercise-heat-stress
#5
Rebecca Relf, Ashley Willmott, Jessica Mee, Oliver Gibson, Arron Saunders, Mark Hayes, Neil Maxwell
There is limited and inconclusive evidence surrounding the physiological and perceptual responses to heat stress while sleep deprived, especially for females. This study aimed to quantify the effect of 24 h sleep deprivation on physiological strain and perceptual markers of heat-related illness in females. Nine females completed two 30-min heat stress tests (HST) separated by 48 h in 39°C, 41% relative humidity at a metabolic heat production of 10 W · kg(-1). The non-sleep deprived HST was followed by the sleep deprivation (SDHST) trial for all participants during the follicular phase of the menstrual cycle...
March 24, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28337096/morphological-pattern-of-endometrial-biopsies-in-southwestern-nigeria
#6
Y M Abdullahi, M A Ajani, O Iyapo, K O Aramide, C A Okolo, Eeu Akang
BACKGROUND: Endometrium remains the most sensitive indicator of ovarian function and endometrial biopsy is one of the diagnostic procedures in endometrial pathology. The current study was carried out to examine the morphological pattern of endometrial biopsies in Ibadan, South-western Nigeria and compare the results with similar studies. METHOD: A retrospective study was undertaken to review all cases of endometrial biopsies received in the Department of Pathology, University College Hospital, Ibadan between January 1999 and December 2008...
December 2016: Annals of Ibadan Postgraduate Medicine
https://www.readbyqxmd.com/read/28333301/preconception-maternal-lipoprotein-levels-in-relation-to-fecundability
#7
Sarah J Pugh, Enrique F Schisterman, Richard W Browne, Anne M Lynch, Sunni L Mumford, Neil J Perkins, Robert Silver, Lindsey Sjaarda, Joseph B Stanford, Jean Wactawski-Wende, Brian Wilcox, Katherine L Grantz
STUDY QUESTION: Are maternal preconception lipid levels associated with fecundability? SUMMARY ANSWER: Fecundability was reduced for all abnormal female lipid levels including total cholesterol, low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C) and total triglyceride levels. WHAT IS KNOWN ALREADY: Subfecundity affects 7-15% of the population and lipid disorders are hypothesized to play a role since cholesterol acts as a substrate for the synthesis of steroid hormones...
March 15, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333263/loss-of-luteotropic-prostaglandin-e-plays-an-important-role-in-the-regulation-of-luteolysis-in-women
#8
Junko Nio-Kobayashi, Masataka Kudo, Noriaki Sakuragi, Toshihiko Iwanaga, W Colin Duncan
STUDY QUESTION: Do intraluteal prostaglandins (PG) contribute to luteal regulation in women? SUMMARY ANSWER: Prostaglandin E (PGE), which is produced in human granulosa-lutein cells stimulated with luteotropic hCG, exerts similar luteotropic effects to hCG, and the expression of PG synthetic and metabolic enzymes in the human CL is driven toward less PGE but more prostaglandin F (PGF) during luteolysis. WHAT IS KNOWN ALREADY: Uterine PGF is a major luteolysin in many non-primate species but not in women...
March 17, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28333238/clustering-of-pcos-like-traits-in-naturally-hyperandrogenic-female-rhesus-monkeys
#9
D H Abbott, B H Rayome, D A Dumesic, K C Lewis, A K Edwards, K Wallen, M E Wilson, S E Appt, J E Levine
STUDY QUESTION: Do naturally occurring, hyperandrogenic (≥1 SD of population mean testosterone, T) female rhesus monkeys exhibit traits typical of women with polycystic ovary syndrome (PCOS)? SUMMARY ANSWER: Hyperandrogenic female monkeys exhibited significantly increased serum levels of androstenedione (A4), 17-hydroxyprogesterone (17-OHP), estradiol (E2), LH, antimullerian hormone (AMH), cortisol, 11-deoxycortisol and corticosterone, as well as increased uterine endometrial thickness and evidence of reduced fertility, all traits associated with PCOS...
March 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333235/ovarian-hormones-and-obesity
#10
Brigitte Leeners, Nori Geary, Philippe N Tobler, Lori Asarian
BACKGROUND: Obesity is caused by an imbalance between energy intake, i.e. eating and energy expenditure (EE). Severe obesity is more prevalent in women than men worldwide, and obesity pathophysiology and the resultant obesity-related disease risks differ in women and men. The underlying mechanisms are largely unknown. Pre-clinical and clinical research indicate that ovarian hormones may play a major role. OBJECTIVE AND RATIONALE: We systematically reviewed the clinical and pre-clinical literature on the effects of ovarian hormones on the physiology of adipose tissue (AT) and the regulation of AT mass by energy intake and EE...
March 2, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28333208/soluble-vcam-1-soluble-icam-1-ratio-is-a-promising-biomarker-for-diagnosing-endometriosis
#11
L Kuessel, R Wenzl, K Proestling, S Balendran, P Pateisky, Yotova, G Yerlikaya, B Streubel, H Husslein
STUDY QUESTION: Do cell adhesion molecules play a role in endometriosis, and can they be used as a biomarker for diagnosing endometriosis? SUMMARY ANSWER: Altered expression of vascular cell adhesion molecule-1 (VCAM-1) and intercellular adhesion molecule-1 (ICAM-1) in the endometrium and peritoneum may play a key role in endometriosis and the soluble VCAM-1/soluble ICAM-1 ratio is a promising biomarker. WHAT IS KNOWN ALREADY: Cell adhesion molecules are cell surface proteins that mediate cellular adherence, inflammatory and immune responses, and cancer-related biological processes...
February 23, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333087/magnetically-bioprinted-human-myometrial-3d-cell-rings-as-a-model-for-uterine-contractility
#12
Glauco R Souza, Hubert Tseng, Jacob A Gage, Arunmani Mani, Pujan Desai, Fransisca Leonard, Angela Liao, Monica Longo, Jerrie S Refuerzo, Biana Godin
Deregulation in uterine contractility can cause common pathological disorders of the female reproductive system, including preterm labor, infertility, inappropriate implantation, and irregular menstrual cycle. A better understanding of human myometrium contractility is essential to designing and testing interventions for these important clinical problems. Robust studies on the physiology of human uterine contractions require in vitro models, utilizing a human source. Importantly, uterine contractility is a three-dimensionally (3D)-coordinated phenomenon and should be studied in a 3D environment...
March 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28331909/evaluating-the-effect-of-insulin-sensitizers-metformin-and-pioglitazone-alone-and-in-combination-on-women-with-polycystic-ovary-syndrome-an-rct
#13
Seyed Mojtaba Sohrevardi, Fahime Nosouhi, Saeed Hossein Khalilzade, Parichehr Kafaie, Mojgan Karimi-Zarchi, Iman Halvaei, Mehdi Mohsenzadeh
BACKGROUND: Insulin resistance and hyperinsulinemia may play a role in pathogenesis of PCOS. One of the common therapeutic methods is using insulin-sensitizing drugs such as metformin and thiazolidinediones. OBJECTIVE: The purpose was to determine the effect of metformin and pioglitazone on clinical, hormonal and metabolic parameters in women with PCOS. MATERIALS AND METHODS: Eighty four women randomly received one of the following for 3 months: metformin (n=28) (500 mg three times a day), pioglitazone (30 mg daily) (n=28) and combination of both metformin and pioglitazone (n=28) (30 mg/day pioglitazone plus 500 mg metformin three times a day)...
December 2016: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/28331289/transcriptome-analysis-of-endometrial-tissues-following-gnrh-agonist-treatment-in-a-mouse-adenomyosis-model
#14
Song Guo, Xiaowei Lu, Ruihuan Gu, Di Zhang, Yijuan Sun, Yun Feng
PURPOSE: Adenomyosis is a common, benign gynecological condition of the female reproductive tract characterized by heavy menstrual bleeding and dysmenorrhea. Gonadotropin-releasing hormone (GnRH) agonists are one of the medications used in adenomyosis treatment; however, their underlying mechanisms are poorly understood. Moreover, it is difficult to obtain endometrial samples from women undergoing such treatment. To overcome this, we generated an adenomyosis mouse model, which we treated with an GnRH agonist to determine its effect on pregnancy outcomes...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28329745/interleukin-6-and-hepcidin-levels-during-hormone-deplete-and-hormone-replete-phases-of-an-oral-contraceptive-cycle-a-pilot-study
#15
Marc Sim, Brian Dawson, Grant Landers, Dorine W Swinkels, Erwin Wiegerinck, Bu B Yeap, Debbie Trinder, Peter Peeling
BACKGROUND: In the past, elevated estradiol levels were reported to downregulate the iron regulatory hormone hepcidin, thereby potentially improving iron metabolism. As estrogen plays a role in regulating the menstrual cycle and can influence the cytokine interleukin-6 (IL-6; a hepcidin up-regulator), this investigation examined the effects of estradiol supplementation achieved by the use of a monophasic oral contraceptive pill (OCP) on IL-6, hepcidin levels and iron status during the hormone-deplete versus hormone-replete phases within an oral contraceptive cycle (OCC)...
March 23, 2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28329228/gender-differences-in-the-effects-of-cardiovascular-drugs
#16
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/28326753/effects-of-essential-oil-exposure-on-salivary-estrogen-concentration-in-perimenopausal-women
#17
Kazuyuki Shinohara, Hirokazu Doi, Chizu Kumagai, Erika Sawano, Wataru Tarumi
OBJECTIVES: The menopausal transition is the time from the onset of menstrual changes until one year after the final menstrual period. During this phase, perimenopausal women experience a variety of health-related symptoms, which seemingly derive from declining level of estrogen secretion. It has long been recognized that some essential oils have the efficacy of alleviating menopausal symptoms. On the basis of this, it is possible that these essential oils have the potency to facilitate estrogen secretion in women...
January 2017: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/28324043/reduced-transforming-growth-factor-beta-activity-in-the-endometrium-of-women-with-heavy-menstrual-bleeding
#18
J A Maybin, L Boswell, V J Young, W C Duncan, Hod Critchley
Context: Heavy menstrual bleeding (HMB) is common and incapacitating. Aberrant menstrual endometrial repair may result in HMB. The TGFβ superfamily contributes to tissue repair, but its role in HMB is unknown. Objective: We hypothesised that TGFβ1 is important for endometrial repair and women with HMB have aberrant TGFβ1 activity at menses. Participants/Setting: Endometrial biopsies were collected from women and menstrual blood loss objectively measured (HMB >80ml/cycle, normal menstrual bleeding, NMB <80ml)...
January 3, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28323989/preconception-low-dose-aspirin-restores-diminished-pregnancy-and-live-birth-rates-in-women-with-low-grade-inflammation-a-secondary-analysis-of-a-randomized-trial
#19
Lindsey A Sjaarda, Rose G Radin, Robert M Silver, Emily Mitchell, Sunni L Mumford, Brian Wilcox, Noya Galai, Neil J Perkins, Jean Wactawski-Wende, Joseph B Stanford, Enrique F Schisterman
Context: Inflammation is linked to causes of infertility. Low dose aspirin (LDA) may improve reproductive success in women with chronic, low-grade inflammation. Objective: To investigate the effect of preconception-initiated LDA on pregnancy rate, pregnancy loss, live birth rate, and inflammation during pregnancy. Design: Stratified secondary analysis of a multi-center, block-randomized, double-blind, placebo-controlled trial. Setting: Four U...
February 3, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28323982/versican-proteolysis-by-adamts-proteases-and-its-influence-on-sex-steroid-receptor-expression-in-uterine-leiomyoma
#20
Ndeye-Aicha Gueye, Timothy J Mead, Christopher D Koch, Charles V Biscotti, Tommaso Falcone, Suneel S Apte
Context: Leiomyomas have abundant extracellular matrix (ECM), with upregulation of versican, a large proteoglycan. Objective: To investigate ADAMTS protease-mediated versican cleavage in myometrium and leiomyoma and the effect of versican knockdown in leiomyoma cells. Design: We used qRT-PCR, western blotting, immunohistochemistry and RNA in situ hybridization for analysis of myometrium, leiomyoma, and immortalized myometrium and leiomyoma cells...
February 6, 2017: Journal of Clinical Endocrinology and Metabolism
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