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https://www.readbyqxmd.com/read/29332622/in-vivo-and-in-vitro-strategies-to-support-caprine-preantral-follicle-development-after-ovarian-tissue-vitrification
#1
N J Donfack, K A Alves, B G Alves, R M P Rocha, J B Bruno, L F Lima, C H Lobo, R R Santos, S F S Domingues, M Bertolini, J Smitz, A P R Rodrigues
The aim of the present study was to compare fresh and vitrified goat ovarian tissue after autotransplantation and in vitro culture. Adult goats were completely ovariectomised and each ovarian pair was sliced and distributed among six different treatment groups: fresh control, fresh transplant, fresh culture, vitrified control, vitrified transplant and vitrified culture. Follicular morphology, development, growth, density, revascularisation and hormone production were evaluated in all groups. Three antral follicles (two in the fresh transplant and one in the vitrified transplant groups) were observed on the surface of the graft 90 days after transplantation...
January 15, 2018: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/29331161/hormone-therapy-gender-affirmation-surgery-and-their-association-with-recent-suicidal-ideation-and-depression-symptoms-in-transgender-veterans
#2
Raymond P Tucker, Rylan J Testa, Tracy L Simpson, Jillian C Shipherd, John R Blosnich, Keren Lehavot
BACKGROUND: Access to transition-related medical interventions (TRMIs) for transgender veterans has been the subject of substantial public interest and debate. To better inform these important conversations, the current study investigated whether undergoing hormone or surgical transition intervention(s) relates to the frequency of recent suicidal ideation (SI) and symptoms of depression in transgender veterans. METHODS: This study included a cross-sectional, national sample of 206 self-identified transgender veterans...
January 14, 2018: Psychological Medicine
https://www.readbyqxmd.com/read/29327380/effects-of-deficiency-and-surplus-dietary-threonine-on-reproductive-performance-of-primiparous-pregnant-gilts
#3
M Shi, T Liu, T Li, H Wang, T Yuan, D Li, J Wang
Dietary threonine imbalance is known to impair reproductive performances of gestating sows, but the underlying mechanisms are largely unknown. In this study, effects of deficiency and surplus dietary threonine during gestation on reproductive performance, serum metabolites and hormones concentration, and colostral nutrient and immunoglobulin contents of primiparous sows were investigated. Ninety primiparous pregnant gilts were assigned to one of the three dietary treatments with different standardized ileal digestible threonine/lysine ratios at 0...
January 11, 2018: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29322180/should-hormone-therapy-be-used-to-prevent-depressive-symptoms-during-the-menopause-transition
#4
Hadine Joffe, Martha Hickey
No abstract text is available yet for this article.
January 10, 2018: JAMA Psychiatry
https://www.readbyqxmd.com/read/29322164/efficacy-of-transdermal-estradiol-and-micronized-progesterone-in-the-prevention-of-depressive-symptoms-in-the-menopause-transition-a-randomized-clinical-trial
#5
Jennifer L Gordon, David R Rubinow, Tory A Eisenlohr-Moul, Kai Xia, Peter J Schmidt, Susan S Girdler
Importance: The menopause transition and early postmenopausal period are associated with a 2- to 4-fold increased risk for clinically significant depressive symptoms. Although a few studies suggest that hormone therapy can effectively manage existing depression during this time, to our knowledge, there have been no studies testing whether hormone therapy can prevent the onset of perimenopausal and early postmenopausal depressive symptoms. Objective: To examine the efficacy of transdermal estradiol plus intermittent micronized progesterone (TE+IMP) in preventing depressive symptom onset among initially euthymic perimenopausal and early postmenopausal women...
January 10, 2018: JAMA Psychiatry
https://www.readbyqxmd.com/read/29316826/the-role-of-metabolomic-markers-for-patients-with-infectious-diseases-implications-for-risk-stratification-and-therapeutic-modulation
#6
Seline Zurfluh, Thomas Baumgartner, Marc A Meier, Manuel Ottiger, Alaadin Voegeli, Luca Bernasconi, Peter Neyer, Beat Mueller, Philipp Schuetz
Metabolomics is a rapidly growing area of research. Metabolomic markers can provide information about the interaction of different organ systems, and thereby improve the understanding of physio-pathological processes, disease risk, prognosis and therapy responsiveness in a variety of diseases. Areas covered: In this narrative review of recent clinical studies investigating metabolomic markers in adult patients presenting with acute infectious disease, we mainly focused on patients with sepsis and lower respiratory tract infections...
January 9, 2018: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/29313190/structural-inequities-and-social-networks-impact-hormone-use-and-misuse-among-transgender-women-in-los-angeles-county
#7
Kirsty Clark, Jesse B Fletcher, Ian W Holloway, Cathy J Reback
In order to reduce gender dysphoria and combat stigma, transgender women often affirm their gender through social and medical transition, which may include cross-sex hormone therapy. This study examined associations between medically monitored hormone use and hormone misuse (non-prescribed hormone use including "fillers"), structural inequities (access to housing, health insurance, and income), and social network dynamics among 271 transgender women in Los Angeles. Hormone use status was coded trichotomously (hormone use, hormone misuse, no hormone use), and robust multinomial logistic regression as well as novel social network analysis was conducted to examine associations...
January 8, 2018: Archives of Sexual Behavior
https://www.readbyqxmd.com/read/29309748/turner-syndrome-transition-from-childhood-to-adolescence
#8
Ioanna Kosteria, Christina Kanaka-Gantenbein
Transition from pediatric to adult care for young women with Turner Syndrome (TS) is characterized by high drop-out rates and inadequate follow-up, leading to increased morbidity and mortality. The complexity of the health issues young women with TS face or new problems that may arise warrants a well-structured and efficiently coordinated gradual transition plan, which is adapted to the individual needs of the emerging young adult and is based on interdisciplinary communication between physicians. In order to achieve a high level of care, it is important for the patient to be sincerely informed about her condition but also supported throughout this critical period of rising responsibility and autonomy by an experienced, multidisciplinary team...
January 5, 2018: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29309514/follicle-stimulating-hormone-levels-and-subclinical-atherosclerosis-in-older-postmenopausal-women
#9
Elizabeth R Bertone-Johnson, Jyrki K Virtanen, Tarja Nurmi, Leo Niskanen, Jaakko Mursu, Sari Voutilainen, Kimmo Ronkainen, Jussi Kauhanen, Tomi-Pekka Tuomainen
Recent studies of perimenopausal women suggest that follicle-stimulating hormone (FSH) levels may be associated with atherosclerosis, independent of estradiol. Whether FSH is related to atherosclerosis in older postmenopausal women, who have completed the menopausal transition, remains unknown. We assessed the relationship of serum FSH and estradiol levels with carotid artery intima-media thickness (IMT) among 587 postmenopausal participants in the Kuopio Ischemic Heart Disease Risk Factor Study (Kuopio, Finland)...
January 1, 2018: American Journal of Epidemiology
https://www.readbyqxmd.com/read/29306054/tyrosine-phosphorylation-determines-afterdischarge-initiation-by-regulating-an-ionotropic-cholinergic-receptor
#10
Sean H White, Raymond M Sturgeon, Yueling Gu, Alysha Nensi, Neil S Magoski
Changes to neuronal activity often involve a rapid and precise transition from low to high excitability. In the marine snail, Aplysia, the bag cell neurons control reproduction by undergoing an afterdischarge, which begins with synaptic input releasing acetylcholine to open an ionotropic cholinergic receptor. Gating of this receptor causes depolarization and a shift from silence to continuous action potential firing, leading to the neuroendocrine secretion of egg-laying hormone and ovulation. At the onset of the afterdischarge, there is a rise in intracellular Ca2+, followed by both protein kinase C (PKC) activation and tyrosine dephosphorylation...
January 3, 2018: Neuroscience
https://www.readbyqxmd.com/read/29303477/a-gonad-expressed-opsin-mediates-light-induced-spawning-in-the-jellyfish-clytia
#11
Gonzalo Quiroga Artigas, Pascal Lapébie, Lucas Leclère, Noriyo Takeda, Ryusaku Deguchi, Gáspár Jékely, Tsuyoshi Momose, Evelyn Houliston
Across the animal kingdom, environmental light cues are widely involved in regulating gamete release, but the molecular and cellular bases of the photoresponsive mechanisms are poorly understood. In hydrozoan jellyfish, spawning is triggered by dark-light or light-dark transitions acting on the gonad, and is mediated by oocyte maturation-inducing neuropeptide hormones (MIHs) released from the ectoderm. We determined in Clytia hemisphaerica that blue-cyan light triggers spawning in isolated gonads. A candidate opsin (Opsin9) was found co-expressed with MIH within specialised ectodermal cells...
January 5, 2018: ELife
https://www.readbyqxmd.com/read/29300862/reproductive-alterations-in-chronically-exposed-female-mice-to-environmentally-relevant-doses-of-a-mixture-of-phthalates-and-alkylphenols
#12
Daniel Patiño-García, Leonor Cruz-Fernandes, Julio Buñay, Jaime Palomino, Ricardo D Moreno
Endocrine-disrupting chemicals (EDCs) are exogenous compounds that modify hormone biosynthesis, causing adverse effects to human health. Among them, phthalates, and alkylphenols are important due to their wide use in plastics, detergents, personal care products, cosmetics and food packaging. However, their conjoint effects over reproductive female health have not been addressed. The aim of this work was to test the effect of chronically exposed female mice to a mixture of three phthalates [bis (2-ethylhexyl), dibutyl and benzyl butyl] and two alkylphenols [4-nonylphenol and 4-tert-octylphenol], from conception to adulthood at environmentally relevant doses...
December 28, 2017: Endocrinology
https://www.readbyqxmd.com/read/29295829/medication-therapy-management-after-hospitalization-in-ckd-a-randomized-clinical-trial
#13
Katherine R Tuttle, Radica Z Alicic, Robert A Short, Joshua J Neumiller, Brian J Gates, Kenn B Daratha, Celestina Barbosa-Leiker, Sterling M McPherson, Naomi S Chaytor, Brad P Dieter, Stephen M Setter, Cynthia F Corbett
BACKGROUND AND OBJECTIVES: CKD is characterized by remarkably high hospitalization and readmission rates. Our study aim was to test a medication therapy management intervention to reduce subsequent acute care utilization. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: The CKD Medication Intervention Trial was a single-blind (investigators), randomized clinical trial conducted at Providence Health Care in Spokane, Washington. Patients with CKD stages 3-5 not treated by dialysis who were hospitalized for acute illness were recruited...
January 2, 2018: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/29285667/epigenetic-erasing-and-pancreatic-differentiation-of-dermal-fibroblasts-into-insulin-producing-cells-are-boosted-by-the-use-of-low-stiffness-substrate
#14
Georgia Pennarossa, Rosaria Santoro, Elena F M Manzoni, Maurizio Pesce, Fulvio Gandolfi, Tiziana A L Brevini
Several studies have demonstrated the possibility to revert differentiation process, reactivating hypermethylated genes and facilitating cell transition to a different lineage. Beside the epigenetic mechanisms driving cell conversion processes, growing evidences highlight the importance of mechanical forces in supporting cell plasticity and boosting differentiation. Here, we describe epigenetic erasing and conversion of dermal fibroblasts into insulin-producing cells (EpiCC), and demonstrate that the use of a low-stiffness substrate positively influences these processes...
December 28, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/29284718/cohort-profile-study-of-transition-outcomes-and-gender-strong-to-assess-health-status-of-transgender-people
#15
Virginia P Quinn, Rebecca Nash, Enid Hunkeler, Richard Contreras, Lee Cromwell, Tracy A Becerra-Culqui, Darios Getahun, Shawn Giammattei, Timothy L Lash, Andrea Millman, Brandi Robinson, Douglas Roblin, Michael J Silverberg, Jennifer Slovis, Vin Tangpricha, Dennis Tolsma, Cadence Valentine, Kevin Ward, Savannah Winter, Michael Goodman
PURPOSE: The Study of Transition, Outcomes and Gender (STRONG) was initiated to assess the health status of transgender people in general and following gender-affirming treatments at Kaiser Permanente health plans in Georgia, Northern California and Southern California. The objectives of this communication are to describe methods of cohort ascertainment and data collection and to characterise the study population. PARTICIPANTS: A stepwise methodology involving computerised searches of electronic medical records and free-text validation of eligibility and gender identity was used to identify a cohort of 6456 members with first evidence of transgender status (index date) between 2006 and 2014...
December 27, 2017: BMJ Open
https://www.readbyqxmd.com/read/29280744/update-on-the-genetics-of-idiopathic-hypogonadotropic-hypogonadism
#16
A Kemal Topaloğlu
Traditionally, idiopathic hypogonadotropic hypogonadism (IHH) is divided into two major categories: Kallmann syndrome (KS) and normosmic IHH (nIHH). To date, inactivating variants in more than 50 genes have been reported to cause IHH. These mutations are estimated to account for up to 50% of all apparently hereditary cases. Identification of further causative gene mutations is expected to be more feasible with the increasing use of whole exome/genome sequencing. Presence of more than one IHH-associated mutant gene in a given patient/pedigree (oligogenic inheritance) is seen in 10-20% of all IHH cases...
December 27, 2017: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/29275992/variation-in-splicing-efficiency-underlies-morphological-evolution-in-capsella
#17
Ushio Fujikura, Runchun Jing, Atsushi Hanada, Yumiko Takebayashi, Hitoshi Sakakibara, Shinjiro Yamaguchi, Christian Kappel, Michael Lenhard
Understanding the molecular basis of morphological change remains a central challenge in evolutionary-developmental biology. The transition from outbreeding to selfing is often associated with a dramatic reduction in reproductive structures and functions, such as the loss of attractive pheromones in hermaphroditic Caenorhabditis elegans and a reduced flower size in plants. Here, we demonstrate that variation in the level of the brassinosteroid-biosynthesis enzyme CYP724A1 contributes to the reduced flower size of selfing Capsella rubella compared with its outbreeding ancestor Capsella grandiflora...
December 20, 2017: Developmental Cell
https://www.readbyqxmd.com/read/29275000/the-metamorphosis-of-adolescent-hormonal-stress-reactivity-a-focus-on-animal-models
#18
REVIEW
Russell D Romeo
As adolescents transition from childhood to adulthood, many physiological and neurobehavioral changes occur. Shifts in neuroendocrine function are one such change, including the hormonal systems that respond to stressors. This review will focus on these hormonal changes, with a particular emphasis on the pubertal and adolescent maturation of the hypothalamic-pituitary-adrenal axis. Furthermore, this review will concentrate on studies using animal models, as these model systems have contributed a great deal to our mechanistic understanding of how factors such as sex and experience with stress shape hormonal reactivity during development...
December 21, 2017: Frontiers in Neuroendocrinology
https://www.readbyqxmd.com/read/29274928/optimal-adjuvant-endocrine-treatment-of-er-her2-breast-cancer-patients-by-age-at-diagnosis-a-population-based-cohort-study
#19
G M H E Dackus, K Jóźwiak, G S Sonke, E van der Wall, P J van Diest, M Hauptmann, S Siesling, S C Linn
BACKGROUND: Prior randomised controlled trials on adjuvant hormonal therapy included HER2any patients; however, a differential effect of aromatase inhibitors (AIs) versus tamoxifen (TAM) may have been missed in ER+/HER2+ patients that comprise 7-15% of all breast cancer patients. In addition, a woman's hormonal microenvironment may influence sensitivity to TAM and AIs in the adjuvant setting, which changes during menopausal transition, a process that takes years. We studied the efficacy of AIs versus TAM in ER+/HER2+ breast cancer patients grouped by age at diagnosis as a proxy for menopausal status using treatment and outcome data from the nationwide population-based Netherlands Cancer Registry (NCR)...
December 21, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/29274753/multiple-sclerosis-re-examined-essential-and-emerging-clinical-concepts
#20
REVIEW
Jonathan Zurawski, James Stankiewicz
Multiple sclerosis (MS) is a chronic autoimmune disease of the central nervous system characterized by exacerbations of neurological dysfunction due to inflammatory demyelination. Neurologic symptoms typically present in young adulthood and vary based on the site of inflammation, though weakness, sensory impairment, brainstem dysfunction and vision loss are common. MS occurs more frequently in women and its development is complex-genetics, hormones, geography, vitamin D, and viral exposure all play roles. Early MS is characterized by relapsing-remitting course and inflammation of the white matter though as patients age, the disease often transitions to a pathologically distinct secondary progressive phase with gradual disability accrual affecting gait, coordination and bladder function...
December 21, 2017: American Journal of Medicine
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