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Disorders of sexual development

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https://www.readbyqxmd.com/read/28339861/constitutive-luteinizing-hormone-receptor-signaling-causes-sexual-dysfunction-and-leydig-cell-adenomas-in-male-mice1
#1
Lan Hai, Deepak S Hiremath, Marilène Paquet, Prema Narayan
The luteinizing hormone receptor (LHCGR) is necessary for fertility and genetic mutations cause defects in reproductive development and function. Activating mutations in LHCGR cause familial male limited precocious puberty (FMPP). We have previously characterized a mouse model (KiLHRD582G) for FMPP that exhibits the same phenotype of precocious puberty, Leydig cell hyperplasia and elevated testosterone as boys with the disorder. We observed that KiLHRD582G male mice became infertile by 6 months of age although sperm count and motility were normal...
February 17, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28339706/differential-proliferation-and-metabolic-activity-of-sertoli-cells-in-the-testes-of-broiler-and-layer-breeder-chickens
#2
Mélanie Faure, Edith Guibert, Sabine Crochet, Pascal Chartrin, Jean-Pierre Brillard, Anne Collin, Pascal Froment
Decades of genetic selection have generated 2 different, highly specialized types of chickens in which 1 type, known as the layer-type chicken, expresses high laying performance while the other type, known as the broiler-type chicken, is dedicated to the production of fast-growing birds. Selected lines for the latter type often express disorders in their reproductive performance including early sexual maturation and accelerated, non-reversible seasonal decline of their semen production and mating behavior. The aim of the present study was to characterize some metabolic markers of the Sertoli cell populations...
February 21, 2017: Poultry Science
https://www.readbyqxmd.com/read/28334875/white-matter-changes-in-paediatric-multiple-sclerosis-and-monophasic-demyelinating-disorders
#3
Giulia Longoni, Robert A Brown, Parya MomayyezSiahkal, Colm Elliott, Sridar Narayanan, Amit Bar-Or, Ruth Ann Marrie, E Ann Yeh, Massimo Filippi, Brenda Banwell, Douglas L Arnold
Most children who experience an acquired demyelinating syndrome of the central nervous system will have a monophasic disease course, with no further clinical or radiological symptoms. A subset will be diagnosed with multiple sclerosis, a life-long disorder. Using linear mixed effects models we examined longitudinal diffusion properties of normal-appearing white matter in 505 serial scans of 132 paediatric participants with acquired demyelinating syndromes followed for a median of 4.4 years, many from first clinical presentation, and 106 scans of 80 healthy paediatric participants...
March 14, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28331743/psychiatric-symptoms-and-psychosocial-problems-in-patients-with-breast-cancer
#4
REVIEW
Filiz İzci, Ahmet Serkan İlgün, Ebru Fındıklı, Vahit Özmen
Cancer is a physical disease and also one of the leading clinical manifestations where psychosocial problems are prevalent. Psychosocial problems that these patients may have in the long run include anxiety, uneasiness, mourning, helplessness, fatigue, impairment of concentration, sleep disorders, mental and cognitive reservation, sexual dysfunction, infertility, psychological distress, and psychiatric disorders. Psychosocial problems have a nature of underpinning the emergence of psychological troubles. The prevalence of psychological disorders in patients with cancer range from 29% to 47%...
July 2016: J Breast Health (2013)
https://www.readbyqxmd.com/read/28326570/reproductive-disorders-in-female-rats-after-prenatal-exposure-to-betamethasone
#5
Cibele S Borges, Tainá L Pacheco, Marina T Guerra, Aline L Barros, Patricia V Silva, Gabriela Missassi, Katiussia Pinho da Silva, Janete A Anselmo-Franci, André S Pupo, Wilma De G Kempinas
Betamethasone is the drug of choice for antenatal treatment, promoting fetal lung maturation and decreasing mortality. Previous studies in rats reported male programming and alteration in sperm parameters and sexual behavior following intrauterine betamethasone exposure. The impact on the female reproductive development is not known. In this study, rat female offspring was assessed for sexual development, morphophysiology of the reproductive tract and fertility after maternal exposure to 0.1 mg kg(-1) of betamethasone or vehicle on gestational days 12, 13, 18 and 19...
March 21, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/28318416/conflicts-between-motivational-systems-related-to-attachment-trauma-key-to-understanding-the-intra-family-relationship-between-abused-children-and-their-abusers
#6
Giovanni Liotti
Research on disorganization of infant attachment provides evidence that it can be caused not only by violent aggression or very early sexual abuse, but also by covert maltreating behavior, which includes the abdication of the caregiver's responsibility to soothe the infant's distress. This paper argues that both overtly abusive caregivers and merely "abdicating" caregivers may cause disorganization of infant attachment through a simultaneous and conflicting activation of the motivational systems governing attachment and survival defense in the infant...
March 1, 2017: Journal of Trauma & Dissociation
https://www.readbyqxmd.com/read/28303465/pharmacotherapy-in-generalized-anxiety-disorder-novel-experimental-medicine-models-and-emerging-drug-targets
#7
REVIEW
David S Baldwin, Ruihua Hou, Robert Gordon, Nathan T M Huneke, Matthew Garner
Many pharmacological and psychological approaches have been found efficacious in patients with generalized anxiety disorder (GAD), but many treatment-seeking patients will not respond and others will relapse despite continuing with interventions that initially had beneficial effects. Other patients will respond but then stop treatment early because of untoward effects such as sexual dysfunction, drowsiness, and weight gain. There is much scope for the development of novel approaches that could have greater overall effectiveness or acceptability than currently available interventions or that have particular effectiveness in specific clinical subgroups...
March 16, 2017: CNS Drugs
https://www.readbyqxmd.com/read/28301762/sex-differences-in-binge-eating-gonadal-hormone-effects-across-development
#8
Kelly L Klump, Kristen M Culbert, Cheryl L Sisk
Eating disorders are highly sexually differentiated disorders that exhibit a female predominance in risk. Most theories focus on psychosocial explanations to the exclusion of biological/genetic influences. The purpose of this descriptive review is to evaluate evidence from animal and human studies in support of gonadal hormone effects on sex differences in binge eating. Although research is in its nascent stages, findings suggest that increased prenatal testosterone exposure in males appears to protect against binge eating...
March 16, 2017: Annual Review of Clinical Psychology
https://www.readbyqxmd.com/read/28299510/psychosexual-functioning-of-cognitively-able-adolescents-with-autism-spectrum-disorder-compared-to-typically-developing-peers-the-development-and-testing-of-the-teen-transition-inventory-a-self-and-parent-report-questionnaire-on-psychosexual-functioning
#9
Linda P Dekker, Esther J M van der Vegt, Jan van der Ende, Nouchka Tick, Anneke Louwerse, Athanasios Maras, Frank C Verhulst, Kirstin Greaves-Lord
To gain further insight into psychosexual functioning, including behaviors, intrapersonal and interpersonal aspects, in adolescents with Autism Spectrum Disorder (ASD), comprehensive, multi-informant measures are needed. This study describes (1) the development of a new measure of psychosexual functioning in both parent- and self-reports (Teen Transition Inventory; TTI) covering all three domains of psychosexual functioning (i.e. psychosexual socialization, psychosexual selfhood, and sexual/intimate behavior)...
March 16, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28295339/annual-research-review-childhood-maltreatment-latent-vulnerability-and-the-shift-to-preventative-psychiatry-the-contribution-of-functional-brain-imaging
#10
REVIEW
Eamon J McCrory, Mattia I Gerin, Essi Viding
BACKGROUND: Childhood maltreatment is a potent predictor of poor mental health across the life span. We argue that there is a need to improve the understanding of the mechanisms that confer psychiatric vulnerability following maltreatment, if we are to progress from simply treating those with a manifest disorder, to developing effective preventative approaches that can help offset the likelihood that such disorders will emerge in the first place. METHODS: We review extant functional neuroimaging studies of children and adolescents exposed to early neglect and/or maltreatment, including physical, sexual and emotional abuse across four neurocognitive domains: threat processing, reward processing, emotion regulation and executive control...
April 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/28295047/diagnostic-application-of-targeted-next-generation-sequencing-of-80-genes-associated-with-disorders-of-sexual-development
#11
Yanjie Fan, Xia Zhang, Lili Wang, Ruifang Wang, Zhuo Huang, Yu Sun, Ruen Yao, Xiaodong Huang, Jun Ye, Lianshu Han, Wenjuan Qiu, Huiwen Zhang, Lili Liang, Xuefan Gu, Yongguo Yu
Disorders of sexual development (DSD) are estimated to occur in 1 of 4500 births. Since the genetic etiology of DSD is highly heterogeneous, obtaining a definitive molecular diagnosis by single gene test is challenging. Utilizing a high-throughput sequencing upfront is proposed as an efficient approach to aid in the diagnosis. This study aimed to examine the diagnostic yield of next-generation sequencing in DSD. 32 DSD patients that previously received clinical examinations and single gene tests were selected, with or without a diagnosis...
March 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28276079/a-randomized-controlled-trial-to-examine-the-effects-of-the-tackling-teenage-psychosexual-training-program-for-adolescents-with-autism-spectrum-disorder
#12
Kirsten Visser, Kirstin Greaves-Lord, Nouchka T Tick, Frank C Verhulst, Athanasios Maras, Esther J M van der Vegt
BACKGROUND: Previous research underscores the importance of psychosexual guidance for adolescents with autism spectrum disorder (ASD). Such guidance is provided in the Tackling Teenage Training (TTT) program, in which adolescents with ASD receive psycho-education and practice communicative skills regarding topics related to puberty, sexuality, and intimate relationships. This randomized controlled trial investigated the effects of the TTT program on (a) cognitive outcomes (i.e. psychosexual knowledge, and insight in interpersonal boundaries) and (b) behavioral outcomes (i...
March 9, 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/28273860/microglial-function-across-the-spectrum-of-age-and-gender
#13
REVIEW
Jillian C Nissen
Microglia constitute the resident immunocompetent cells of the central nervous system. Although much work has focused on their ability to mount an inflammatory response in reaction to pathology, recent studies have delved into their role in maintaining homeostasis in the healthy brain. It is important to note that the function of these cells is more complex than originally conceived, as there is increasing evidence that microglial responses can vary greatly among individuals. Here, this review will describe the changing behavior of microglia from development and birth through to the aged brain...
March 4, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28271667/consequences-of-early-adverse-rearing-experience-eare-on-development-insights-from-non-human-primate-studies
#14
REVIEW
Bo Zhang
Early rearing experiences are important in one's whole life, whereas early adverse rearing experience(EARE) is usually related to various physical and mental disorders in later life. Although there were many studies on human and animals, regarding the effect of EARE on brain development, neuroendocrine systems, as well as the consequential mental disorders and behavioral abnormalities, the underlying mechanisms remain unclear. Due to the close genetic relationship and similarity in social organizations with humans, non-human primate(NHP) studies were performed for over 60 years...
January 18, 2017: Zool Res
https://www.readbyqxmd.com/read/28269241/label-free-detection-of-sex-determining-region-y-sry-via-capacitive-biosensor
#15
Shilpa Sivashankar, Christos Sapsanis, Sumeyra Agambayev, Ulrich Buttner, Khaled Nabil Salama
In this work, we present for the first time, the use of a simple fractal capacitive biosensor for the quantification and detection of sex-determining region Y (SRY) genes. This section of genetic code, which is found on the Y chromosome, finds importance for study as it causes fetuses to develop characteristics of male sex-like gonads when a mutation occurs. It is also an important genetic code in men, and disorders involving the SRY gene can cause infertility and sexual malfunction that lead to a variety of gene mutational disorders...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268037/sexual-health-after-breast-cancer-recommendations-from-the-spanish-menopause-society-federaci%C3%A3-n-espa%C3%A3-ola-de-sociedades-de-sexolog%C3%A3-a-sociedad-espa%C3%A3-ola-de-m%C3%A3-dicos-de-atenci%C3%A3-n-primaria-and-sociedad-espa%C3%A3-ola-de-oncolog%C3%A3-a-m%C3%A3-dica
#16
REVIEW
Nicolás Mendoza, Francisca Molero, Fermín Criado, Mª Jesús Cornellana, Encarna González
Breast cancer is the most common cancer in women. As survival rates are increasing, the long-term health problems of survivors now need attention. Many survivors develop sexual disorders as a consequence of either the side-effects of treatment or induced menopause. A panel of experts from various Spanish scientific societies (Spanish Menopause Society, SMS; Federación Española de Sociedades de Sexología, FESS; Sociedad Española de Médicos de Atención Primaria, SEMERGEN; and Sociedad Española de Oncología Médica) met to develop recommendations for the management of sexual health in breast cancer survivors based on the best evidence available...
February 20, 2017: Maturitas
https://www.readbyqxmd.com/read/28261839/clinical-and-molecular-characteristics-in-15-patients-with-androgen-receptor-gene-mutations-from-south-china
#17
L Su, J Cheng, X Yin, G Liu, Z Lu, H Sheng, Y Cai, Q Shi, L Liu
A variety of mutations in the androgen receptor (AR) gene are linked to androgen insensitivity syndrome (AIS) or sexual development disorder. Here, we studied 15 patients with various degrees of disorders of genital hypoplasia from South China. Clinical data including basal hormone level, phenotype, karyotyping and SRY gene identification were documented. Exons with flanking intronic region of the AR gene were sequenced and analysed for mutations, and a total of eight mutations were identified in the AR gene...
March 6, 2017: Andrologia
https://www.readbyqxmd.com/read/28259255/eurycoma-longifolia-as-a-potential-adoptogen-of-male-sexual-health-a-systematic-review-on-clinical-studies
#18
REVIEW
Hnin Ei Thu, Isa Naina Mohamed, Zahid Hussain, Putri Ayu Jayusman, Ahmad Nazrun Shuid
Eurycoma longifolia (EL) has been well recognized as a booster of male sexual health. Over the past few decades, numerous in vivo animal studies and human clinical trials have been conducted across the globe to explore the promising role of EL in managing various male sexual disorders, which include erectile dysfunction, male infertility, low libido, and downregulated testosterone levels. The aim of the present review is to analyze and summarize the literature on human clinical trials which revealed the clinical significance and therapeutic feasibility of EL in improving male sexual health...
January 2017: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/28258933/contemporary-review-of-grafting-techniques-for-the-surgical-treatment-of-peyronie-s-disease
#19
REVIEW
Georgios Hatzichristodoulou, Daniar Osmonov, Hubert Kübler, Wayne J G Hellstrom, Faysal A Yafi
INTRODUCTION: Peyronie's disease (PD) is a benign fibrotic disorder of the tunica albuginea of the penis, which can cause penile pain, curvature, shortening, erectile dysfunction, and psychological distress. Surgery is indicated when penile curvature prevents satisfactory sexual intercourse. Plaque incision or excision with grafting has been suggested as an option in patients with a penile curvature greater than 60°, a shortened penis, and/or an hourglass or complex deformity. AIM: To provide an overview of recent studies reporting outcomes of grafting techniques and to report advances in the development of new grafting materials for PD surgery...
February 28, 2017: Sexual Medicine Reviews
https://www.readbyqxmd.com/read/28258336/adverse-childhood-experiences-and-disordered-gambling-assessing-the-mediating-role-of-emotion-dysregulation
#20
Julia C Poole, Hyoun S Kim, Keith S Dobson, David C Hodgins
Adverse childhood experiences (ACEs), such as sexual and physical abuse, have been established as risk factors for the development of disordered gambling. The underlying mechanism by which ACEs influence disordered gambling, however, remains unknown. The aims of the present research were to comprehensively investigate ten types of childhood adversity and their relationships to disordered gambling in adulthood, and to test whether emotion dysregulation mediated the relationship between ACEs and disordered gambling...
March 3, 2017: Journal of Gambling Studies
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