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https://www.readbyqxmd.com/read/28211638/the-relationship-between-ovarian-function-and-ovarian-limited-dose-in-radiotherapy-postoperation-of-ovarian-transposition-in-young-patients-with-cervical-cancer
#1
Zhenhua Du, Hui Qu
In this study, the relationship between ovarian function and ovarian limited dose in radiotherapy was evaluated in young patients with cervical cancer who underwent ovarian transposition (Fig1B). Moreover, the novel ovarian dose limit for a better preservation of ovarian function in intensity-modulated radiation therapy (IMRT) was determined. We retrospectively analyzed data from 86 patients with cervical cancer who received radical hysterectomy and ovarian transposition from January 2013 to June 2015. In agreement with the National Comprehensive Cancer Network Guidelines (NCCN) for Cervical Cancer Version 2...
February 17, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28208875/erectile-dysfunction-and-low-sex-drive-in-men-with-type-2-dm-the-potential-role-of-diabetic-pharmacotherapy
#2
Hayder M Al-Kuraishy, Ali I Al-Gareeb
INTRODUCTION: Diabetic men with erectile dysfunction have not been widely studied. They have low testosterone levels, causing low sex drive and erectile dysfunction. AIM: To assess the erectile dysfunction and sex drive in relation to testosterone serum levels in type 2 Diabetes Mellitus (DM) patients. MATERIALS AND METHODS: A total of 64 patients with type 2 DM were enrolled in this cross-sectional study, according to the treatment types they were divided into three groups, group (A): 34 patients treated with metformin, group (B): 30 patients treated with sulfonylurea and group (C): 27 healthy normal non-diabetic men are taken as control...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28208851/2d-4d-ratio-and-its-implications-in-medicine
#3
Saravanakumar Jeevanandam, Prathibha K Muthu
Digit ratios, especially 2D:4D ratio, a potential proxy marker for prenatal androgen exposure shows sexual dimorphism. Existing literature and recent research show accumulating evidence on 2D:4D ratio showing correlations with various phenotypic traits in humans. Ratio of 2D:4D is found to correlate negatively to testosterone and positively to oestrogen in the foetus. Interestingly, it is constant since birth and not influenced by the adult hormone levels. Usually, males have lower ratios when compared to females...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28207156/integrating-community-based-family-planning-services-with-local-marine-conservation-initiatives-in-southwest-madagascar-changes-in-contraceptive-use-and-fertility
#4
Laura Robson, Martine Holston, Caroline Savitzky, Vik Mohan
This study assessed changes in contraceptive use and fertility between 2009 and 2013 in the Velondriake locally managed marine area of southwest Madagascar where marine conservation organization Blue Ventures began implementing an integrated health-environment program in 2007. The proportion of sexually active women aged 15 to 49 years using hormonal contraception and/or condoms during last intercourse increased more than twofold from 25 percent in 2009 to 59 percent in 2013. The number of births in the last 12 months per 1,000 women of reproductive age declined by 28 percent over the same period from 196 in 2009 to 141 in 2013...
February 16, 2017: Studies in Family Planning
https://www.readbyqxmd.com/read/28203244/pistil-transcriptome-analysis-to-disclose-genes-and-gene-products-related-to-aposporous-apomixis-in-hypericum-perforatum-l
#5
Giulio Galla, Sara Zenoni, Linda Avesani, Lothar Altschmied, Paride Rizzo, Timothy F Sharbel, Gianni Barcaccia
Unlike sexual reproduction, apomixis encompasses a number of reproductive strategies, which permit maternal genome inheritance without genetic recombination and syngamy. The key biological features of apomixis are the circumvention of meiosis (i.e., apomeiosis), the differentiation of unreduced embryo sacs and egg cells, and their autonomous development in functional embryos through parthenogenesis, and the formation of viable endosperm either via fertilization-independent means or following fertilization with a sperm cell...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28202355/ovarian-hormone-fluctuations-predict-within-cycle-shifts-in-women-s-food-intake
#6
James R Roney, Zachary L Simmons
What role do ovarian hormones play in modulating day-to-day shifts in women's motivational priorities? In many nonhuman mammals, estradiol causes drops in feeding and foraging, progesterone reverses this effect, and the two hormones in combination produce cycle phase shifts characterized by lower food intake near ovulation when sexual receptivity is at its peak. Hormonal predictors of within-cycle shifts in women's total food intake have not been previously tested. Here, in a study with both daily hormone measures and self-reported food intake, we found that within-cycle fluctuations in estradiol negatively predicted shifts in food intake, progesterone fluctuations positively predicted them, and the two hormones together statistically mediated a significant peri-ovulatory drop in eating...
February 12, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/28197550/sexually-dimorphic-risk-mitigation-strategies-in-rats
#7
Blake A Pellman, Bryan P Schuessler, Mohini Tellakat, Jeansok J Kim
The scientific understanding of fear and anxiety-in both normal and pathological forms-is presently limited by a predominance of studies that use male animals and Pavlovian fear conditioning-centered paradigms that restrict and assess specific behaviors (e.g., freezing) over brief sampling periods and overlook the broader contributions of the spatiotemporal context to an animal's behavioral responses to threats. Here, we use a risky "closed economy" system, in which the need to acquire food and water and the need to avoid threats are simultaneously integrated into the lives of rats, to examine sex differences in mitigating threat risk while foraging...
January 2017: ENeuro
https://www.readbyqxmd.com/read/28193195/assessing-the-burden-of-treatment-emergent-adverse-events-associated-with-atypical-antipsychotic-medications
#8
Pierre-Michel Llorca, Christophe Lançon, Ann Hartry, T Michelle Brown, Dana B DiBenedetti, Siddhesh A Kamat, Clément François
BACKGROUND: Treatment of schizophrenia and major depressive disorder (MDD) with atypical antipsychotics (AAPs) show improved efficacy and reduced side effect burden compared with older antipsychotic medications. However, a risk of treatment-emergent adverse events (TEAEs) remains. TEAEs are hard to quantify and perspectives on the importance of TEAEs differ across patients and between patients and physicians. The current study is a qualitative assessment that investigates TEAEs of AAPs from both patient and physician perspectives to provide better understanding of the occurrence and burden of TEAEs associated with these medications...
February 13, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28190638/long-term-toxicity-and-health-related-quality-of-life-after-single-fraction-high-dose-rate-brachytherapy-boost-and-hypofractionated-external-beam-radiotherapy-for-intermediate-risk-prostate-cancer
#9
N Shahid, A Loblaw, H T Chung, P Cheung, E Szumacher, C Danjoux, R Sankreacha, L Zhang, A Deabreu, A Mamedov, G Morton
AIMS: To report health-related quality of life (HRQOL) and toxicity in prostate cancer patients treated with single-fraction high dose rate (HDR) brachytherapy boost and external beam radiotherapy (EBRT). MATERIALS AND METHODS: Patients with intermediate-risk prostate cancer were accrued to a phase II clinical trial of 15 Gy HDR boost and EBRT to a dose of 37.5 Gy in 15 fractions. HRQOL (Expanded Prostate Cancer Index Composite [EPIC]), urinary symptoms (International Prostate Symptom Score [IPSS]), erectile function (International Index of Erectile Function [IIEF]) and toxicity (Common Terminology Criteria for Adverse Events [CTCAE], version 3...
February 9, 2017: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/28189029/disruption-of-thyroxine-and-sex-hormones-by-1-2-dibromo-4-1-2-dibromoethyl-cyclohexane-dbe-dbch-in-american-kestrels-falco-sparverius-and-associations-with-reproductive-and-behavioral-changes
#10
Sarah C Marteinson, Vince Palace, Robert J Letcher, Kim J Fernie
1,2-dibromo-4-(1,2-dibromoethyl)cyclohexane (DBE-DBCH - formerly TBECH) is an emerging brominated flame retardant (BFR) pollutant with androgen potentiating ability and other endocrine disrupting effects in birds and fish. The objectives of this study were to determine the effects of exposure to environmentally-relevant levels of DBE-DBCH on circulating levels of thyroid and sex steroid hormones in American kestrels, and if hormonal concentrations were related to previously reported changes in reproductive success and courtship behaviors...
February 8, 2017: Environmental Research
https://www.readbyqxmd.com/read/28182836/an-exploratory-study-evaluating-the-impact-of-opioid-and-non-opioid-pain-medications-on-serum-plasma-free-testosterone-and-free-estradiol-concentrations
#11
Julie A Ray, Mark M Kushnir, A Wayne Meikle, Jill E Sindt, Frederick G Strathmann
Chronic use of opioid medications has been reported to cause altered sexual function. It is not known if non-opioid pain medications have similar effects. Assessment of this effect through the measurement of concentrations of free hormones is limited. Positivity of opioid medications (hydrocodone, oxycodone, morphine, methadone, tramadol and fentanyl) and non-opioid pain medications (gabapentin or pregabalin) in human serum and plasma samples from adult men and women were evaluated for association with concentrations of free testosterone (fTe) and free estradiol (fE2) measured using equilibrium dialysis-liquid chromatography-tandem mass spectrometry methods...
February 9, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28177387/evaluation-of-the-influence-of-prenatal-transportation-stress-on-gnrh-stimulated-luteinizing-hormone-and-testosterone-secretion-in-sexually-mature-brahman-bulls
#12
B P Littlejohn, M C Roberts, M N Bedenbaugh, A W Lewis, D A Neuendorff, D G Riley, J A Carroll, R C Vann, M Amstalden, R D Randel, T H Welsh
This study examined the relationship of prenatal transportation stress (PNS) with exogenous GnRH-induced LH and testosterone secretion in sexually mature Brahman bulls. Brahman cows (n = 96; 48 were stressed by transportation at 5 stages of gestation and 48 were controls) produced a calf crop of 85 calves. All bulls (n = 46) from this calf crop were electroejaculated every 2 wk beginning at a scrotal circumference of 24 cm until sexual maturity (SM; i.e., 500 million sperm/ejaculate). The initial 11 control and 12 PNS bulls to reach SM were selected for the experiment...
January 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28168997/icv-galanin-like-peptide-stimulates-non-contact-erections-but-not-touch-based-erections-in-adult-sexually-experienced-male-rats
#13
Gregory S Fraley
Galanin-like peptide (GALP) is a neuropeptide transcribed only within the arcuate nucleus of the hypothalamus and is thought to be a mediator between energetics and reproductive function. Intracerebroventricular (ICV) injection of GALP is known to have effects on feeding, and to significantly increase gonadotropin releasing hormone- (GnRH-) mediated luteinizing hormone (LH) secretion. Furthermore, ICV GALP is known to stimulate fos production in the medial pre-optic area (mPOA) and to a lesser extent, the paraventricular nucleus (PVN)...
January 23, 2017: Neuropeptides
https://www.readbyqxmd.com/read/28164078/an-11-month-old-girl-with-central-precocious-puberty-caused-by-hypothalamic-hamartoma
#14
Da Young Yoon, Jae Hyun Kim
Central precocious puberty (CPP) is caused by premature activation of the hypothalamic-gonadal axis, and must be treated adequately. In particular, CPP that occurs at a relatively young age or in boys is likely to be caused by an organic lesion. Hypothalamic hamartoma (HH) is the most common organic cause of CPP. The present case report describes an 11-month-old female infant who presented with vaginal bleeding and rapidly progressive secondary sex characteristics from the age of 6 months. She was diagnosed with CPP following the detection of HH via magnetic resonance imaging...
December 2016: Annals of Pediatric Endocrinology & Metabolism
https://www.readbyqxmd.com/read/28162243/seasonal-morphophysiological-variations-in-the-prostatic-complex-of-the-tarabul-s-gerbil-gerbillus-tarabuli
#15
Arezki Kheddache, Elara N'tima Moudilou, Yamina Zatra, Naouel Aknoun-Sail, Zaina Amirat, Jean-Marie Exbrayat, Farida Khammar
Gerbillus tarabuli is a nocturnal Saharan rodent which has an annual reproductive cycle characterized by the reproductive activity in spring and a long phase of sexual quiescence in other seasons. We describe the morphology and hormonal regulation of the prostatic complex of this rodent in the two periods, based on anatomical, histological, morphometric, and immunohistochemical analyses. The organisation of this prostatic complex is similar to that reported for Meriones unguiculatus, but different from the prostate of Psammomys obesus, the rat, and the mouse...
January 19, 2017: Tissue & Cell
https://www.readbyqxmd.com/read/28161937/gonadal-and-sexual-dysfunction-in-childhood-cancer-survivors
#16
Ju Young Yoon, Hyeon Jin Park, Hee Young Ju, Jong Hyung Yoon, Jin Soo Chung, Sang Hyun Hwang, Dong Ock Lee, Hye Young Shim, Byung-Kiu Park
Purpose: Few studies have addressed gonadal and sexual dysfunctions in childhood cancer survivors. We evaluated the prevalence rates and risk factors for gonadal failure among adolescent/young adult childhood cancer survivors and their sexual function. Materials and Methods: Subjects were childhood cancer survivors aged 15-29 years who had completed therapy more than two years ago. Demographic and medical characteristics were obtained from the patients' medical records...
January 25, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28161756/safety-profile-of-finasteride-distribution-of-adverse-effects-according-to-structural-and-informational-dichotomies-of-the-mind-brain
#17
Ion G Motofei, David L Rowland, Mirela Manea, Simona R Georgescu, Ioana Păunică, Ioanel Sinescu
Finasteride is currently used extensively for male androgenic alopecia and benign prostatic hyperplasia; however, some adverse effects are severe and even persistent after treatment cessation, the so-called 'post-finasteride syndrome'. The following most severe adverse effects-sexual dysfunction and depression-often occur together and may potentiate one other, a fact that could explain (at least in part) the magnitude and persistence of finasteride adverse effects. This paper presents the pharmacological action of finasteride and the corresponding adverse effects, the biological base explaining the occurrence, persistence and distribution of these adverse effects, and a possible therapeutic solution for post-finasteride syndrome...
February 4, 2017: Clinical Drug Investigation
https://www.readbyqxmd.com/read/28161412/proteomic-characterization-of-seminal-plasma-from-alternative-reproductive-tactics-of-chinook-salmon-oncorhynchus-tswatchysha
#18
Robert Gombar, Trevor E Pitcher, Jason A Lewis, Janeen Auld, Panayiotis O Vacratsis
: Chinook salmon (Oncorhynchus tshawytscha) are external fertilizers that display sneak-guard alternative reproductive tactics. The larger hooknose males dominate mating positions, while the smaller jack males utilize sneak tactics to achieve fertilization. Although poorly understood, previous studies have suggested that differences in spermatozoa quality may play a critical role in sperm competition. Considering that the seminal plasma strongly regulates spermatozoa quality and other processes critical for fertilization success, we employed label free quantitative mass spectrometry utilizing ion mobility separation coupled to cross-species bioinformatics to examine the seminal plasma proteome of Chinook salmon...
February 1, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28161388/estrogen-dependent-estrous-behavior-in-rabbits-is-antagonized-by-the-antiprogestin-ru486
#19
Gabriela González-Mariscal, José Antonio Gallegos, Rafael I Rueda Morales, Kurt Hoffman
Estrogen receptor-alpha (ERα) dimerizes with unliganded progesterone receptor (PR) in target tissues to trigger genomic and non-genomic effects. In ovariectomized rats the antiprogestin RU486 or antisense nucleotides against PR antagonize estradiol-induced sexual receptivity. We determined the relevance of unliganded PR for the expression of estrogen-dependent scent-marking (chinning) and sexual receptivity by injecting RU486 to: a) ovariectomized (ovx) rabbits given estradiol benzoate (EB; 5μg/day); b) intact rabbits...
February 1, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/28158270/developmental-time-course-and-effects-of-immunostressors-that-alter-hormone-responsive-behavior-on-microglia-in-the-peripubertal-and-adult-female-mouse-brain
#20
Mary K Holder, Jeffrey D Blaustein
In female mice, the experience of being shipped from the breeder facility or a single injection of the bacterial endotoxin, lipopolysaccharide (LPS), during pubertal development alters the behavioral response to estradiol in adulthood as demonstrated by perturbations of estradiol's effects on sexual behavior, cognitive function, as well as its anxiolytic and anti-depressive properties. Microglia, the primary type of immunocompetent cell within the brain, contribute to brain development and respond to stressors with marked and long-lasting morphological and functional changes...
2017: PloS One
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