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Ovarian failure

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https://www.readbyqxmd.com/read/29028960/ovarian-follicular-theca-cell-recruitment-differentiation-and-impact-on-fertility-2017-update
#1
JoAnne S Richards, Yi A Ren, Nicholes Candelaria, Jaye E Adams, Aleksandar Rajkovic
The major goal of this review is to summarize recent exciting findings that have been published within the past 10 years that, to our knowledge, have not been presented in detail in previous reviews and that may impact altered follicular development in polycystic ovarian syndrome (PCOS) and premature ovarian failure (POF) in women. Specifically, we will cover 1) mouse models that have led to discovery of the derivation of two precursor populations of theca cells in the embryonic gonad, 2) the key roles of the oocyte-derived factor GDF9 on the hedgehog (HH) signaling pathway and theca cell functions and 3) the impact of the HH pathway on both the specification of theca endocrine cells and theca fibroblast and smooth muscle cells in developing follicles...
October 5, 2017: Endocrine Reviews
https://www.readbyqxmd.com/read/29027807/annals-express-biochemistry-of-the-menopause
#2
John W Honour
The life of a human female is characterised from teenage years by monthly menstruation which ceases (the menopause) typically between the age of 40 and 60 years. The potential for reproduction declines and ceases as the ovaries become depleted of follicles. A transition period in mid-life, for 2 to 10 years, when menstruation is less regular is called the peri-menopause. The menopause is associated with a significant decline in plasma concentrations of sex hormones, an increase in the concentrations of the gonadotrophins and changes in other hormones such as the inhibins...
January 1, 2017: Annals of Clinical Biochemistry
https://www.readbyqxmd.com/read/29025323/cardiovascular-autonomic-responses-in-the-vcd-rat-model-of-menopause-effects-of-short-and-long-term-ovarian-failure
#3
Domitila A Huber, Darlan Bazilio, Flaviano Lorenzon, Sibele Sehnem, Lucas Pacheco, Janete A Anselmo-Franci, Fernanda B Lima
After menopause, hypertension elevates the risk of cardiac diseases, one of the major causes of women's morbidity. The gradual depletion of ovarian follicles in rats, induced by 4-vinylcyclohexene diepoxide (VCD), is a model for studying the physiology of menopause. 4-Vinylcyclohexene diepoxide treatment leads to early ovarian failure (OF) and a hormonal profile comparable to menopause in humans. We have hypothesized that OF can compromise the balance between sympathetic and parasympathetic tones of the cardiovascular system, shifting toward dominance of the former...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/29024988/low-dose-metronomic-delivery-of-cyclophosphamide-is-less-detrimental-to-granulosa-cell-viability-and-ovarian-function-than-maximum-tolerated-dose-delivery-in-the-mouse
#4
Jacqueline Dynes, Kata Osz, Allyssa Hooper, Jim Petrik
Chemotherapy can cause early menopause or infertility in women and have a profound negative impact on the quality of life of young female cancer survivors. Various factors are known to influence the risk of chemotherapy-induced ovarian failure, including the drug dose and treatment duration; however, the scheduling of dose administration has not yet been evaluated as an independent risk factor. We hypothesized that Low-Dose Metronomic (LDM) chemotherapy scheduling would be less detrimental to ovarian function than the traditional Maximum-Tolerated Dose (MTD) strategy...
August 30, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/29022562/ketogenic-diet-in-endocrine-disorders-current-perspectives
#5
REVIEW
L Gupta, D Khandelwal, S Kalra, P Gupta, D Dutta, S Aggarwal
Ketogenic diet (KD) is a high-fat, adequate-protein, and low-carbohydrate diet that leads to nutritional ketosis, long known for antiepileptic effects and has been used therapeutically to treat refractory epilepsy. This review attempts to summarize the evidence and clinical application of KD in diabetes, obesity, and other endocrine disorders. KD is usually animal protein based. An empiric vegetarian Indian variant of KD has been provided keeping in mind the Indian food habits. KD has beneficial effects on cardiac ischemic preconditioning, improves oxygenation in patients with respiratory failure, improves glycemic control in diabetics, is associated with significant weight loss, and has a beneficial impact on polycystic ovarian syndrome...
October 2017: Journal of Postgraduate Medicine
https://www.readbyqxmd.com/read/29021840/vaccination-and-autoimmune-diseases-is-prevention-of-adverse-health-effects-on-the-horizon
#6
REVIEW
Maria Vadalà, Dimitri Poddighe, Carmen Laurino, Beniamino Palmieri
Autoimmune diseases, including multiple sclerosis and type 1 diabetes mellitus, affect about 5% of the worldwide population. In the last decade, reports have accumulated on various autoimmune disorders, such as idiopathic thrombocytopenia purpura, myopericarditis, primary ovarian failure, and systemic lupus erythematosus (SLE), following vaccination. In this review, we discuss the possible underlying mechanisms of autoimmune reactions following vaccinations and review cases of autoimmune diseases that have been correlated with vaccination...
September 2017: EPMA Journal
https://www.readbyqxmd.com/read/29020678/ovarian-cancer-a-heterogeneous-disease
#7
Myriam Kossaï, Alexandra Leary, Jean-Yves Scoazec, Catherine Genestie
Ovarian cancer encompasses a collection of neoplasms with distinct clinicopathological and molecular features and prognosis. Despite there being a variety of ovarian cancer subtypes, these are treated as a single disease. Tremendous efforts have been made to characterize these subtypes and identify tumoral pathways and potential biomarkers for therapeutic strategies. As in other cancer types, tumor heterogeneity appears to be very high across subtypes and within a single tumor, representing a major cause of treatment failure...
October 12, 2017: Pathobiology: Journal of Immunopathology, Molecular and Cellular Biology
https://www.readbyqxmd.com/read/29019594/allogeneic-mesenchymal-stem-cells-and-xenogenic-platelet-rich-plasma-associated-or-not-in-the-repair-of-bone-failures-in-rabbits-with-secondary-osteoporosis
#8
Mariá Andrade de Carvalho Rocha, Laís Meireles Costa Silva, Wellson Andrade de Oliveira, Dayseanny de Oliveira Bezerra, Gustavo Cardoso da Silva, Lucilene Dos Santos Silva, Brenda Lurian do Nascimento Medeiros, Sílvia de Araújo França Baêta, Maria Acelina Martins de Carvalho, Napoleão Martins Argôlo
PURPOSE: To assess the efficacy of allogeneic mesenchymal stem cells and xenogenic platelet rich plasma in the treatment of bone failure of osteoporotic rabbits secondary to estrogenic deprivation and iatrogenic hypercortisolism. METHODS: Eight female rabbits underwent ovarian resection and corticoid therapy to induce clinical status of osteoporosis. Four failures were produced in the tibiae, with each failure being treated with hemostatic sponge, allogenic mesenchymal stem cells, xenogenic platelet-rich plasma and the association between both...
September 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/28990742/autoimmune-endocrine-diseases
#9
Rosaria M Ruggeri, Giuseppe Giuffrida, Alfredo Campennì
The endocrine system is interested by several autoimmune diseases, characterized by different impact and severity, according to the organs involved. Autoimmune thyroid disorders (i.e. Hashimoto's thyroiditis and Graves' disease) and type 1 diabetes mellitus are the most common autoimmune endocrine disorders, while hypophysitis, adrenalitis (90% of cases of primary hypocortisolism or Addison's disease), premature ovarian failure and hypoparathyroidism represent quite rare conditions. Autoimmune endocrine diseases can also coexist in the same individuals and cluster in families...
October 9, 2017: Minerva Endocrinologica
https://www.readbyqxmd.com/read/28989055/down-regulation-of-hectd3-by-her2-inhibition-makes-serous-ovarian-cancer-cells-sensitive-to-platinum-treatment
#10
Tong Shu, Yi Li, Xiaowei Wu, Bin Li, Zhihua Liu
Resistance to platinum-based chemotherapy is a major cause of treatment failure in patients with epithelial ovarian cancer and predicts a poor prognosis. Previously, we found that HECTD3 confers cancer cell resistance to apoptosis. However, the significance of HECTD3 expression in ovarian cancer and its regulatory mechanisms were unknown. Here, we found that HECTD3 depletion promotes carboplatin-induced apoptosis in both an ovarian cancer cell model and a xenograft mouse model. Moreover, high HECTD3 expression is significantly associated with poor platinum response and prognosis in ovarian cancer patients...
October 6, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28981934/-analysis-a-family-with-partial-xq-deletion
#11
Yuying Jiang, Jianlong Zhuang, Yuanbai Wang, Qianmei Zhuang, Shuhong Zeng
OBJECTIVE: To analyze partial deletion of the long arm of X chromosome in a family and explore the mechanism underlying its phenotypes. METHODS: G-banding technique was employed to analyze the karyotypes of the subjects, and fluorescence in situ hybridization (FISH) was used to analyze their X chromosomes with Xpter, Xqter and WCPX probes. RESULTS: The karyotypes of the proband, her mother and her fetus were all 46,X,del(X)(q24). Combined FISH and karyotyping analysis suggested that the proband and her fetus both carried a Xq24q27...
October 10, 2017: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/28978336/the-oncogenic-golgi-phosphoprotein-3-like-overexpression-is-associated-with-cisplatin-resistance-in-ovarian-carcinoma-and-activating-the-nf-%C3%AE%C2%BAb-signaling-pathway
#12
Shanyang He, Gang Niu, Jianhong Shang, Yalan Deng, Zhiyong Wan, Cai Zhang, Zeshan You, Hongwei Shen
BACKGROUND: Chemo-resistance is a leading cause of tumor relapse and treatment failure in patients with ovarian cancer. The identification of effective strategies to overcome drug resistance will have a significant clinical impact on the disease. METHODS: The protein and mRNA expression of GOLPH3L in ovarian cancer cell lines and patient tissues were determined using Real-time PCR and Western blot, respectively. 177 human ovarian cancer tissue samples were analyzed by IHC to investigate the association between GOLPH3L expression and the clinicopathological characteristics of ovarian cancer patients...
October 4, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28978013/microtubule-inhibitor-sp-6-27-inhibits-angiogenesis-and-induces-apoptosis-in-ovarian-cancer-cells
#13
Arpita Kulshrestha, Gajendra K Katara, Safaa A Ibrahim, Renukadevi Patil, Shivaputra A Patil, Kenneth D Beaman
In ovarian cancer (OVCA), treatment failure due to chemo-resistance is a serious challenge. It is therefore critical to identify new therapies that are effective against resistant tumors and have reduced side effects. We recently identified 4-H-chromenes as tubulin depolymerizing agents that bind to colchicine site of beta-tubulin. Here, we screened a chemical library of substituted 4-H-chromenes and identified SP-6-27 to exhibit most potent anti-proliferative activity towards a panel of human cisplatin sensitive and resistant OVCA cell lines with 50% inhibitory concentration (IC50; mean ± SD) ranging from 0...
September 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28971890/altered-mirna-profile-dependent-on-art-outcome-in-early-pregnancy-targets-wnt-pathway
#14
Alexander Freis, Andreas Keller, Nicole Ludwig, Eckart Meese, Julia Jauckus, Julia Rehnitz, Edison Capp, Thomas Strowitzki, Ariane Germeyer
Main goal of this study is to detect possible alterations in microRNA(miRNA)-expression and the pathway targeted in plasma at the time of embryo transfer and pregnancy testing dependent on the assisted reproductive treatment (ART) outcome after ovarian hyperstimulation for in vitro fertilization. Changes in miRNA-expression in plasma of women, who became pregnant (n=6) vs. women who failed implantation (n=6) following day 5 embryo transfer (ET), were investigated at day of ET and pregnancy testing (PT). Protein expression to validate the finding was performed with a sample size of n=20 (10 per group) using enzyme-linked immunosorbent assay...
September 29, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28971280/reproductive-ovarian-testing-and-the-alphabet-soup-of-diagnoses-dor-poi-pof-por-and-for
#15
REVIEW
Lisa M Pastore, Mindy S Christianson, James Stelling, William G Kearns, James H Segars
There are large variations in the number of oocytes within each woman, and biologically, the total quantity is at its maximum before the woman is born. Scientific knowledge is limited about factors controlling the oocyte pool and how to measure it. Within fertility clinics, there is no uniform agreement on the diagnostic criteria for each common measure of ovarian reserve in women, and thus, studies often conflict. While declining oocyte quantity/quality is a normal physiologic occurrence as women age, some women experience diminished ovarian reserve (DOR) much earlier than usual and become prematurely infertile...
October 2, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28967642/comparison-of-various-tissue-and-cell-therapy-approaches-when-restoring-ovarian-hepatic-and-kidney-s-function-after-chemotherapy-induced-ovarian-failure
#16
M M Kozub, V Y Prokopiuk, K P Skibina, O V Prokopiuk, N I Kozub
About 1% of women suffer from premature ovarian failure, which leads to a significant deterioration in the life quality. Most often this condition is caused by performed chemotherapy, autoimmune diseases, surgery performed on ovaries, uterus, or fallopian tubes. The aim of this study was to compare different approaches of tissue and cell therapy in restoring the sexual function in case of ovarian failure induced by chemotherapy. MATERIALS AND METHODS: The study was carried out in BALB/c mice with the modeled ovarian failure, induced by cyclophosphamide and busulfan...
September 2017: Experimental Oncology
https://www.readbyqxmd.com/read/28954601/restoring-ovarian-function-with-human-placenta-derived-mesenchymal-stem-cells-in-autoimmune-induced-premature-ovarian-failure-mice-mediated-by-treg-cells-and-associated-cytokines
#17
Na Yin, Wei Zhao, Qianqian Luo, Wendan Yuan, Xiying Luan, Hongqin Zhang
Regulatory T (Treg) cells play a key role in the regulation of autoimmunity and transplantation. Human placenta-derived mesenchymal stem cell (hPMSC) transplantation has a potential to restore ovarian dysfunction associated with premature ovarian failure (POF), while the exact function of the Treg cells in the transplantation still needs to be further investigated. In this study, hPMSCs were intravenously injected into POF mice following zona pellucida glycoprotein 3 (pZP3) treatment. Ovarian function was measured by analyzing estrous cycle, folliculogenesis, and hormone secretion, also, with the detection of apoptotic granular cells (GCs) in ovarian tissues...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28947984/drug-resistance-reversal-in-ovarian-cancer-cells-of-paclitaxel-and-borneol-combination-therapy-mediated-by-peg-pamam-nanoparticles
#18
Liang Zou, Di Wang, Yichen Hu, Chaomei Fu, Wei Li, Liping Dai, Lin Yang, Jinming Zhang
Paclitaxel (PTX) is frequently suffered from multidrug resistance (MDR), resulting in lower chemotherapeutic efficacy and even chemotherapy failure. To combine the P-glycolprotein (P-gp) inhibitor would be a useful strategy to overcome MDR. However, what is needed now is an efficient vehicle to deliver multiple drugs into tumor simultaneously. In this study, PTX and Borneol (BNL), a natural compound with P-gp inhibition effect confirmed in intestinal absorption, were co-loaded in the fabricated PEG-PAMAM nanoparticle (NPs) by a one-step nano-precipitation method with high drug loading efficiency, narrow size distribution and low hemolysis rate...
September 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28947558/perspectives-on-the-co-treatment-with-gnrha-in-female-patients-undergoing-hematopoietic-stem-cell-transplantation
#19
Luminita Nicoleta Cima, Anca Colita, Simona Fica
Outcomes after hematopoietic stem cell transplantation (HSCT) for patients with both malignant and nonmalignant diseases have improved significantly in recent years. However, the endocrine system is highly susceptible to damage by the high-dose chemotherapy and/or irradiation used in the conditioning regimen before HSCT. Ovarian failure and subsequent infertility are frequent complications that long-term HSCT survivors and their partners face with a negative impact on their QoL. Several meta-analyses of randomized clinical trials showed that gonadotropin-releasing hormone agonist (GnRHa) administration in advance of starting standard chemotherapy decreases the risk of gonadal dysfunction and infertility in cancer patients, but GnRHa use for ovarian protection in HSCT patients is not fully determined...
September 25, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28946816/effect-of-tnf-%C3%AE-on-molecules-related-to-the-insulin-action-in-endometrial-cells-exposed-to-hyperandrogenic-and-hyperinsulinic-conditions-characteristics-of-polycystic-ovary-syndrome
#20
Lorena Oróstica, Paula García, Carolina Vera, Víctor García, Carmen Romero, Margarita Vega
Polycystic ovary syndrome (PCOS) affects not only ovarian functions but is also able to affect endometrium metabolism. Around 80% of women with PCOS are obese. High tumor necrosis factor (TNF)-α production and low adiponectin levels are characteristics of obesity. Interestingly, endometrium from obese women with PCOS presents an insulin-resistance condition, high TNF-α levels, and low adiponectin levels. However, TNF-α effect on molecules associated with insulin action in endometrial cells remains unclear...
January 1, 2017: Reproductive Sciences
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