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https://www.readbyqxmd.com/read/29770151/research-on-establishment-of-abnormal-phlegmatic-syndrome-with-premature-ovarian-failure-rat-model-and-effects-of-balgham-munziq-treatment
#1
Muladili Yuemaier, Mayire Tuerhong, Abulizi Keremu, Nafeisha Kadeer, Ayiguzhali Aimaiti, Xilinguli Wushouer, Adilijiang Yiming, Xiamixinuer Yilike
This study aimed to establish and explore the biological basis of abnormal phlegmatic syndrome with premature ovarian failure (POF) model in rats based on the Uighur medicine (UM) in the first place and investigate the effects of unique herbal medicine, Balgham Munziq (BMq). Mature female Wistar rats were fed with spinach and coriander in cold and humid condition for approximately 20 weeks until abnormal phlegmatic syndrome (APS) model was established. When APS model was confirmed by Uighur medical experts, APS with POF disease rats were subdivided into APS with POF disease model group and APS with POF disease treated with BMq group; the rest of them were subdivided into APS model group and APS treated with BMq group...
2018: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29743077/role-of-hormonal-and-inflammatory-alterations-in-obesity-related-reproductive-dysfunction-at-the-level-of-the-hypothalamic-pituitary-ovarian-axis
#2
REVIEW
Michelle Goldsammler, Zaher Merhi, Erkan Buyuk
BACKGROUND: Besides being a risk factor for multiple metabolic disorders, obesity could affect female reproduction. While increased adiposity is associated with hormonal changes that could disrupt the function of the hypothalamus and the pituitary, compelling data suggest that obesity-related hormonal and inflammatory changes could directly impact ovarian function. OBJECTIVE: To review the available data related to the mechanisms by which obesity, and its associated hormonal and inflammatory changes, could affect the female reproductive function with a focus on the hypothalamic-pituitary-ovarian (HPO) axis...
May 9, 2018: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/29656043/pituitary-estrogen-receptor-alpha-is-involved-in-luteinizing-hormone-pulsatility-at-mid-gestation-in-the-south-american-plains-vizcacha-lagostomus-maximus-rodentia-caviomorpha
#3
Sofía Proietto, Lorena Yankelevich, Federico Martín Villarreal, Pablo Ignacio Felipe Inserra, Santiago Elías Charif, Alejandro Raúl Schmidt, Santiago Andrés Cortasa, María Clara Corso, Noelia Paula Di Giorgio, Victoria Lux-Lantos, Alfredo Daniel Vitullo, Julia Halperin, Verónica Berta Dorfman
The South American plains vizcacha, Lagostomus maximus, is a caviomorph rodent native from Argentina, Bolivia and Paraguay. It shows peculiar reproductive features like pre-ovulatory follicle recruitment during pregnancy with an ovulatory process at around mid-gestation. We have described the activation of the hypothalamic - pituitary - ovarian (HPO) axis during pregnancy. A progressive decrease of progesterone (P4) at mid-pregnancy elicits the delivery of gonadotropin-releasing hormone (GnRH) with the consequent secretion of follicle stimulating hormone (FSH) and estradiol (E2 ) followed by luteinizing hormone (LH) release resulting in follicular luteinization and the P4 concentration recover...
April 12, 2018: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29588175/identification-and-analysis-of-micrornas-mrnas-pairs-associated-with-nutritional-status-in-seasonal-sheep
#4
Heng Yang, Xianxia Liu, Guangdong Hu, Yifan Xie, Shan Lin, Zongsheng Zhao, Jingbo Chen
Given the important role of nutritional status for reproductive performance, we aimed to explore the potential microRNA (miRNA)-mRNA pairs and their regulatory roles associated with nutritional status in seasonal reproducing sheep. Individual ewes were treated with and without 0.3 kg/day concentrates, and the body condition score, estrus rate, and related miRNAs and target genes were compared. A total of 261 differentially expressed miRNAs were identified, including 148 hypothalamus-expressed miRNAs and 113 ovary-expressed miRNAs, and 349 target genes were predicted to be associated with nutritional status and seasonal reproduction in sheep...
March 24, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29549734/hypothalamic-pituitary-ovarian-axis-perturbation-in-the-basis-of-bisphenol-a-bpa-reproductive-toxicity-in-female-zebrafish-danio-rerio
#5
Ana Molina, Nieves Abril, Noelia Morales-Prieto, José Monterde, Nahúm Ayala, Antonio Lora, Rosario Moyano
Thousands of safety-related studies have been published on bisphenol A (BPA), an ubiquitous environmental pollutant with estrogenic activity and many other potential biological effects. In recent years, BPA exposure has been shown to cause anovulation and infertility through irreversible alteration of the hypothalamic-pituitary-gonadal axis in several organisms, including fish and mammals. Recently, the European Chemical Agency classified BPA as a "substance of very high concern" because of its endocrine-disrupting properties, which have serious effects on human health...
July 30, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29537383/abnormal-uterine-bleeding-in-adolescents
#6
Selin Elmaoğulları, Zeyra Aycan
Abnormal uterine bleeding (AUB) is the major gynecologic complaint of adolescents admitting to hospital. Heavy menstrual bleeding (HMB) is the most common clinical presentation of AUB. Anovulatory cycles owing to immature hypothalamic-pituitary-ovarian axis is the leading etiology of HMB and there is an accompanying bleeding disorder in almost %20 of patients with HMB. Additionally, endocrine disorders such as hypothyroidism, hyperprolactinemia and polycystic ovary syndrome (PCOS) are possible causes of AUB...
February 28, 2018: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/29529690/the-effect-of-metformin-on-serum-gonadotropin-levels-in-postmenopausal-women-with-diabetes-and-prediabetes-a-pilot-study
#7
Robert Krysiak, Witold Szkróbka, Bogusław Okopień
BACKGROUND: Metformin was found to decrease serum levels of prolactin and thyrotropin. The aim of this study was to investigate the effect of this drug on hypothalamic-pituitary-ovarian axis activity in postmenopausal women with recently diagnosed and untreated glucose metabolism abnormalities. METHODS: The study included three matched groups of postmenopausal women: patients with type 2 diabetes (group A, n=16), women with prediabetes (group B, n=14), and individuals with normal glucose metabolism (group C, n=14)...
March 12, 2018: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/29523133/obesity-as-disruptor-of-the-female-fertility
#8
REVIEW
Erica Silvestris, Giovanni de Pergola, Raffaele Rosania, Giuseppe Loverro
Both obesity and overweight are increasing worldwide and have detrimental influences on several human body functions including the reproductive health. In particular, obese women undergo perturbations of the 'hypothalamic pituitary ovarian axis', and frequently suffer of menstrual dysfunction leading to anovulation and infertility. Besides the hormone disorders and subfertility that are common in the polycystic ovary syndrome (PCOS), in obesity the adipocytes act as endocrine organ. The adipose tissue indeed, releases a number of bioactive molecules, namely adipokines, that variably interact with multiple molecular pathways of insulin resistance, inflammation, hypertension, cardiovascular risk, coagulation, and oocyte differentiation and maturation...
March 9, 2018: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/29391677/endocrine-abnormalities-in-adolescents-with-menstrual-disorders
#9
Siddhesh R Rajiwade, Haritha Sagili, R Soundravally, L Subitha
Purpose: To look for endocrine abnormalities like thyroid disorders, hyperprolactinemia, hyperandrogenism and PCOS among adolescents with menstrual disorders and to compare the above endocrine status with those without menstrual disorders. Methods: This was a case-control study carried out in adolescent girls aged 10-19 years in gynecology outpatient department of a tertiary care hospital. Sample of venous blood (5 ml) was taken for hormonal studies as clinically indicated-thyroid function test, serum prolactin, total testosterone, which were analyzed by chemiluminescence system...
February 2018: Journal of Obstetrics and Gynaecology of India
https://www.readbyqxmd.com/read/29297778/chronic-cholestasis-is-associated-with-hypogonadism-and-premature-ovarian-failure-in-adult-rats-cholestasis-causes-ovarian-hypogonadism
#10
Yomna I Mahmoud
Hypogonadism is a well-known complication in males with chronic liver diseases. However, the consequences of chronic hepatopathies on female reproductive capacities have received relatively little attention. The present study evaluates the effect of chronic obstructive jaundice on the ovary of adult cycling rats. Estrous cyclicity was monitored to check the functional status of the hypothalamic-pituitary-ovarian axis. Ovarian changes were assessed using histomorphometric, immunohistochemical, and ultrastructural techniques...
January 2018: Ultrastructural Pathology
https://www.readbyqxmd.com/read/29278519/gnrh-dependent-precocious-puberty-manifested-at-the-age-of-14-months-in-a-girl-with-47-xxx-karyotype
#11
Nicos Skordis, Eleana Ferrari, Aria Antoniadou, Leonidas A Phylactou, Pavlos Fanis, Vassos Neocleous
This case report describes a 47,XXX girl who presented very early, at the age of 14 months, with signs of sexual precocity (breast and pubic hair development, menarche) and was finally diagnosed with GnRH dependent precocious puberty with no evidence of underlying central nervous system pathology. Molecular testing did not identify any genetic defect in any of the genes tested (KISS1, KISS1R, DLK1 and the intronless MKRN3). Though previous studies have shown a link between karyotype 47,XXX and precocious puberty, this is the youngest patient reported so far...
July 2017: Hormones: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29210631/uterine-function-from-normal-to-polycystic-ovarian-syndrome-alterations
#12
Silvana R Ferreira, Alicia B Motta
BACKGROUND: The endometrium is one of the most important female reproductive organs. Polycystic ovarian syndrome (PCOS) is a reproductive and endocrine pathology that affect women of reproductive age. PCOS negatively affects the endometrium, leading to implantation failure and proliferative aberrations. METHODS: We conducted a search at the http://www.ncbi.nlm.nhi.gov/pubmed/electronic database using the following key words: endometrial steroid receptors, endometrium, uterine function, endometrium and PCOS, implantation window, implantation and PCOS, implantation markers, inflammation, oxidative stress...
2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29153058/induction-of-the-lh-surge-in-premenarchal-girls-confirms-early-maturation-of-the-hypothalamic-pituitary-ovarian-axis
#13
Polina Rovner, Julia Keltz, Amanda Allshouse, Barbara Isaac, Cheryl Hickmon, Jennifer Lesh, Justin Chosich, Nanette Santoro
PURPOSE: To determine whether premenarchal girls exhibit positive estradiol feedback similar to regularly cycling adult women when given exogenous estradiol. METHODS: This was a prospective clinical cohort study at 2 institutions. Nine girls and 6 women received a 7-day course of transdermal estradiol designed to produce physiologic, mid-cycle circulating estradiol levels. Participants collected daily morning urine for luteinizing hormone (LH), estradiol metabolites (E1c), and progesterone metabolites (Pdg), corrected for creatinine...
January 2018: Reproductive Sciences
https://www.readbyqxmd.com/read/29037105/the-role-of-female-obesity-on-in-vitro-fertilization-outcomes
#14
Miro Kasum, Slavko Orešković, Ermin Čehić, Albert Lila, Emina Ejubović, Dragan Soldo
The aim of this review is to analyze the role of obesity on fertility outcome in women undergoing in vitro fertilization (IVF) with respect to clinical or live birth rates and pregnancy loss rates. Despite findings from several earlier and newer studies that obesity does not adversely affect pregnancy outcome in women attempting conception, numerous reports from mostly recent studies suggest that obesity undoubtedly impairs IVF outcomes. Obesity impairs ovarian responsiveness to gonadotrophin stimulation, requiring higher doses of medication, increased risk of cycle cancelation, pre-term delivery, low birth weight or miscarriage, and decreases implantation, clinical pregnancy or live birth rates compared to women of normal weight...
March 2018: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28980840/prolactin-receptor-gene-polymorphism-and-the-risk-of-recurrent-pregnancy-loss-a-case-control-study
#15
Jin Ju Kim, Young Min Choi, Sung Ki Lee, Kwang Moon Yang, Eun Chan Paik, Hyeon Jeong Jeong, Jong Kwan Jun, Ae Ra Han, Kyu Ri Hwang, Min A Hong
Since the first study was published reporting the candidate association between the prolactin receptor gene intron C/T polymorphism (rs37389) and recurrent miscarriage, no replication study has been performed. In this study, we investigated the role of the prolactin receptor gene C/T polymorphism in 311 Korean women with recurrent pregnancy loss and 314 controls. Genotyping for prolactin receptor gene intron C/T polymorphism was performed using a TaqMan assay. The significance of difference in the genotype distribution was assessed using a chi-square test, and continuous variables were compared using a Student's t-test...
February 2018: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28931575/case-report-of-clitoral-hypertrophy-in-2-extremely-premature-girls-with-an-ovarian-cyst
#16
Anne-Laure Nerré, Pierre Bétrémieux, Sylvie Nivot-Adamiak
Neonatal clitoromegaly is mainly attributed to in utero androgen exposure secondary to congenital adrenal hyperplasia. We report on 2 extremely premature girls with clitoromegaly, increased androgen levels, no salt wasting syndrome, and ovarian cyst. In case 1, the cyst liquid was aspired during ovarian hernia surgery and revealed high androgen levels. After aspiration, serum androgen levels decreased, as did clitoral size. In case 2, an ovarian cyst was seen on pelvic ultrasound. Aspiration was not indicated...
October 2017: Pediatrics
https://www.readbyqxmd.com/read/28930603/centchroman-a-safe-reversible-postcoital-contraceptive-with-curative-and-prophylactic-activity-in-many-disorders
#17
Ved P Kamboj, Suprabhat Ray, Nitya Anand
Centchroman (INN: Ormeloxifene), a reversible post-coital/weekly oral contraceptive (half-life of about 168 hours), designed and developed at CDRI, Lucknow is the only non-steroidal oral contraceptive in clinical use in the world today. Synthesized in 1967 and completing pre-clinical and clinical studies in 1989, this drug was approved for marketing in 1991, social marketing in 1995 and NFPW in April 2016. It acts by preventing implantation of blastocyst in endometrium. It is the only contraceptive which neither suppresses ovulation nor interferes with the hypothalamic-pituitary-ovarian axis...
January 1, 2018: Frontiers in Bioscience (Elite Edition)
https://www.readbyqxmd.com/read/28867888/efficacy-of-combined-cabergoline-and-metformin-compared-to-metformin-alone-on-cycle-regularity-in-patients-with-polycystic-ovarian-disease-with-hyperprolactinemia-a-randomized-clinical-trial
#18
Mervat Ali Mohamed Elsersy
PURPOSE: Polycystic ovarian syndrome (PCOS) is a common reproductive disorder. Increasing serum prolactin in these patients could be detected in both follicular and luteal phase of the normal and stimulated cycles. Hyperprolactinemia affects the hypothalamic-pituitary-ovarian axis causing anovulation and abnormal uterine bleeding. In this study, the efficacy of combined cabergoline and metformin therapy was compared to metformin therapy alone in patients with PCOS on the body mass index, androgen profile and menstrual cycle regulation...
October 2017: Journal of Obstetrics and Gynaecology of India
https://www.readbyqxmd.com/read/28745464/elite-athletes-and-pubertal-delay
#19
Karina Kapczuk
Intensive physical training and participation in competitive sports during childhood and early adolescence may affect athletes' pubertal development. On the other hand, pubertal timing, early or late, may impact on an athlete selection for a particular sport. Genetic predisposition, training load, nutritional status and psychological stress determine athletes' pubertal timing. Athletes that practice esthetic sports, especially gymnasts, are predisposed to a delay in pubertal development. The growing evidence indicates that energy deficiency, not a systemic training per se, plays a crucial role in the pathogenesis of functional hypothalamic hypogonadism in female athletes...
October 2017: Minerva Pediatrica
https://www.readbyqxmd.com/read/28672284/association-of-concussion-with-abnormal-menstrual-patterns-in-adolescent-and-young-women
#20
Meredith L Snook, Luke C Henry, Joseph S Sanfilippo, Anthony J Zeleznik, Anthony P Kontos
Importance: Brain injury may interrupt menstrual patterns by altering hypothalamic-pituitary-ovarian axis function. Investigators have yet to evaluate the association of concussion with menstrual patterns in young women. Objective: To compare abnormal menstrual patterns in adolescent and young women after a sport-related concussion with those after sport-related orthopedic injuries to areas other than the head (nonhead). Design, Setting, and Participants: This prospective cohort study of adolescent and young women with a sport-related concussion (n = 68) or a nonhead sport-related orthopedic injury (n = 61) followed up participants for 120 days after injury...
September 1, 2017: JAMA Pediatrics
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