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Ovarian failure

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https://www.readbyqxmd.com/read/28546821/evaluation-of-neutrophil-lymphocyte-ratio-platelet-lymphocyte-ratio-and-red-blood-cell-distribution-width-platelet-ratio-for-diagnosis-of-premature-ovarian-insufficiency
#1
Gulsah Ilhan, Fatma Ferda Verit Atmaca, Esra Altan, Ali Galip Zebitay, Hamdullah Sozen, Hurkan Akyol, Meryem Kurek Eken
Objective: To evaluate whether systemic inflammatory markers (neutrophil to lymphocyte ratio (NLR), platelet to lymphocyte ratio (PLR) and red blood cell distribution width (RDW) to platelet ratio (RPR)) can be used as reliable markers for the diagnosis of premature ovarian insufficiency (POI) and to determine if there is a relationship between these markers and follicle stimulating hormone (FSH), Anti-Müllerian Hormone (AMH) levels. Materials and methods: Written and electronic medical records were reviewed using searches for diagnoses with the terms of 'premature ovarian failure', 'premature ovarian insufficiency'...
December 2016: Journal of Family & Reproductive Health
https://www.readbyqxmd.com/read/28545020/microtubule-inhibitor-sp-6-27-inhibits-angiogenesis-and-induces-apoptosis-in-ovarian-cancer-cells
#2
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...
May 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28544226/short-term-rapamycin-treatment-increases-ovarian-lifespan-in%C3%A2-young-and-middle-aged-female-mice
#3
Xiaowei Dou, Yan Sun, Jiazhao Li, Jing Zhang, Dandan Hao, Wenwen Liu, Rui Wu, Feifei Kong, Xiaoxu Peng, Jing Li
Although age-related ovarian failure in female mammals cannot be reversed, recent strategies have focused on improving reproductive capacity with age, and rapamycin is one such intervention that has shown a potential for preserving the ovarian follicle pool and preventing premature ovarian failure. However, the application is limited because of its detrimental effects on follicular development and ovulation during long-term treatment. Herein, we shortened the rapamycin administration to 2 weeks and applied the protocol to both young (8 weeks) and middle-aged (8 months) mouse models...
May 22, 2017: Aging Cell
https://www.readbyqxmd.com/read/28535578/coasting-withholding-gonadotrophins-for-preventing-ovarian-hyperstimulation-syndrome
#4
REVIEW
Arianna D'Angelo, Nazar N Amso, Rudaina Hassan
BACKGROUND: Ovarian hyperstimulation syndrome (OHSS) is an iatrogenic and potentially life threatening condition resulting from excessive ovarian stimulation. Reported incidence of moderate to severe OHSS ranges from 0.6% to 5% of in vitro fertilization (IVF) cycles. The factors contributing to OHSS have not been completely explained. The release of vasoactive substances secreted by the ovaries under human chorionic gonadotrophin (hCG) stimulation may play a key role in triggering this syndrome...
May 23, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28528817/tracing-and-characterizing-the-development-of-transplanted-female-germline-stem-cells-in%C3%A2-vivo
#5
Changqing Wu, Bo Xu, Xiaoyong Li, Wenzhi Ma, Ping Zhang, Xuejin Chen, Ji Wu
It has long been believed that most female mammalian species lose the ability to generate oocytes in postnatal ovaries. Recent evidence has demonstrated the isolation and culture of female germline stem cells (FGSCs) from adult mice and humans. However, the process and mechanisms of FGSC differentiation in vivo following transplantation have not yet been studied. Here, we isolated and characterized FGSCs from a single EGFP-transgenic mouse, and traced the development and behavior of transplanted FGSCs (F-TFs) in vivo...
May 6, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28528322/very-low-doses-of-heavy-oxygen-ion-radiation-induce-premature-ovarian-failure
#6
Birendra Mishra, Ryan Ripperdan, Laura Ortiz, Ulrike Luderer
Astronauts are exposed to charged particles during space travel, and charged particles are also used for cancer radiotherapy. Premature ovarian failure is a well-known side-effect of conventional, low linear energy transfer (LET) cancer radiotherapy, but little is known about the effects of high LET charged particles on the ovary. We hypothesized that lower LET (16.5 keV/µm) oxygen particles would be less damaging to the ovary than we previously found for iron (LET=179 keV/µm). Adult female mice were irradiated with 0, 5, 30, or 50 cGy oxygen ions or 50 cGy oxygen plus dietary supplementation with the antioxidant alpha lipoic acid (ALA)...
May 20, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28524180/aberrant-epigenetic-regulation-of-gabrp-associates-with-aggressive-phenotype-of-ovarian-cancer
#7
Hye Youn Sung, San-Duk Yang, Woong Ju, Jung-Hyuck Ahn
Metastasis is a major cause of therapeutic failure in ovarian cancer. To elucidate molecular mechanisms of ovarian cancer metastasis, we previously established a metastatic xenograft mouse model using human ovarian carcinoma SK-OV-3 cells. Using gene expression profiling, we found that γ-aminobutyric acid (GABA)A receptor π subunit (GABRP) expression was upregulated (>4-fold) in metastatic tissues from our xenograft mice compared with SK-OV-3 cells. Importantly, GABRP knockdown diminished the migration and invasion of SK-OV-3 cells, and reduced extracellular signal-regulated kinase (ERK) activation while overexpression of GABRP exhibited significantly increased cell migration, invasion and ERK activation...
May 19, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28522430/the-drosophila-lin54-homolog-mip120-controls-two-aspects-of-oogenesis
#8
Mei-Hsin Cheng, Laura Andrejka, Paul J Vorster, Albert Hinman, Joseph S Lipsick
The conserved multi-protein MuvB core associates with the Myb oncoproteins and with the RB-E2F-DP tumor suppressor proteins in complexes that regulate cell proliferation, differentiation, and apoptosis. Drosophila Mip120, a homolog of LIN54, is a sequence-specific DNA-binding protein within the MuvB core. A mutant of Drosophila mip120 was previously shown to cause female and male sterility. We now show that Mip120 regulates two different aspects of oogenesis. First, in the absence of the Mip120 protein, egg chambers arrest during the transition from stage 7 to 8 with a failure of the normal program of chromosomal dynamics in the ovarian nurse cells...
May 18, 2017: Biology Open
https://www.readbyqxmd.com/read/28502486/jcl-roundtable-cardiovascular-disease-risk-reduction-in-menopausal-women
#9
REVIEW
William Virgil Brown, Martha Gulati, Gina P Lundberg
Ovarian failure occurs in most women during the late fifth decade or early sixth decade of life. This causes a number of changes in physiology as estrogen and progestin concentrations decline. These involve lipoprotein metabolism and the vasculature. The risk factors for large vessel disease increase, and dysfunction of the small resistance vessels responds with changes in blood flow to the skin causing unpleasant symptoms. These and other changes result in visits to the physician. A reassessment of risk factors and symptoms is needed to develop a new plan for effective management, both short term and long term...
March 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/28499912/cyclophosphamide-and-acrolein-induced-oxidative-stress-leading-to-deterioration-of-metaphase-ii-mouse-oocyte-quality
#10
Roohi Jeelani, Sana N Khan, Faten Shaeib, Hamid-Reza Kohan-Ghadr, Sarah R Aldhaheri, Tohid Najafi, Mili Thakur, Robert Morris, Husam M Abu-Soud
Cyclophosphamide (CTX) is a chemotherapeutic agent widely used to treat ovarian, breast, and hematological cancers as well as autoimmune disorders. Such chemotherapy is associated with reproductive failure and premature ovarian insufficiency. The mechanism by which CTX and or its main metabolite, acrolein, affect female fertility remains unclear, but it is thought to be caused by an overproduction of reactive oxygen species (ROS). Here, we investigated the effect of CTX on metaphase II mouse oocytes obtained from treated animal (120mg/kg, 24 h of single treatment), and oocytes directly exposed to increasing concentrations of CTX and acrolein (n=480; 0, 5, 10, 25, 50, and 100μM) with and without cumulus cells (CCs) for 45min which correlates to the time of maximum peak plasma concentrations after administration...
May 9, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28494682/operative-transvaginal-hydrolaparoscopy-improve-ovulation-rate-after-clomiphene-failure-in-polycystic-ovary-syndrome
#11
Pierluigi Giampaolino, Nicoletta De Rosa, Luigi Della Corte, Ilaria Morra, Antonio Mercorio, Carmine Nappi, Giuseppe Bifulco
Aim of our study was to assess the ovulation rate, with mid-luteal progesterone level and ultrasound follicles monitoring, in PCOS CC-resistant patients undergone transvaginal hydrolaparoscopy ovarian drilling. A prospective observational study was carried out in 123 PCOS, infertile, CC-resistant patients who undergone THL ovarian drilling. Each woman was evaluated by hormonal measurement, and ultrasound evaluation during 6 months follow-up. Progesterone serum levels were assessed on days 20-24 of the cycle after surgical treatment...
May 11, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28493175/treatment-for-lupus-nephritis-an-overview-of-systematic-reviews-and-meta-analyses
#12
REVIEW
Yuehong Chen, Jianhong Sun, Kun Zou, Yuan Yang, Gang Liu
The aim is to systematically review the treatment for lupus nephritis (LN) by performing an overview of systematic reviews and meta-analyses. Electronic databases of OVID MEDLINE, OVID EMBASE, and Cochrane Library were searched to identify published systematic reviews and meta-analyses investigating treatments for LN up to 13 July 2016. A measurement tool to assess systematic reviews (AMSTAR) was used to assess the quality of included studies. Totally, 24 studies were included. Of the eligible studies, 3 studies were rated as poor quality, 11 as moderate, and 10 as good...
May 10, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28489567/eg5-inhibitor-yl001-induces-mitotic-arrest-and-inhibits-tumor-proliferation
#13
Yufei Wang, Xingyu Wu, Mufeng Du, Xi Chen, Xianling Ning, Hong Chen, Siyuan Wang, Jia Liu, Zhenming Liu, Ridong Li, Ge Fu, Chunguang Wang, Michael A McNutt, Demin Zhou, Yuxin Yin
Eg5 is a kinesin spindle protein that controls chromosomal segregation in mitosis and is thus a critical drug target for cancer therapy. We report the discovery of a potent, selective inhibitor of Eg5 designated YL001. YL001 was obtained through shape similarity based virtual screening, and it bears a 1,5-disubstituted tetrazole scaffold. YL001 exhibits favorable bioactivity in a variety of cancer cell lines, including taxol-resistant ovarian cancer and 6TG-resistant breast cancer cell lines. This compound inhibits tumor growth by 60% and significantly prolongs median survival time by more than 50% in a xenograft mouse model...
April 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28486650/factors-influencing-the-decision-to-attend-screening-for-cancer-in-the-uk-a-meta-ethnography-of-qualitative-research
#14
B Young, L Bedford, D Kendrick, K Vedhara, J F R Robertson, R das Nair
Background: This review aimed to better understand experiences of being invited to cancer screening and associated decision-making. Methods: Qualitative evidence explaining UK cancer screening attendance decisions was systematically identified. Data were extracted and meta-ethnography used to identify shared themes, synthesize findings and generate higher level interpretations. Results: Thirty-four studies met inclusion criteria. They related to uptake of breast, cervical, colorectal, prostate, ovarian and lung cancer screening...
May 9, 2017: Journal of Public Health
https://www.readbyqxmd.com/read/28485514/incidence-puberty-and-fertility-in-45-x-47-xxx-mosaicism-report-of-a-patient-and-a-literature-review
#15
Han Hyuk Lim, Hong Ryang Kil, Sun Hoe Koo
Turner syndrome (TS), characterized by short stature and premature ovarian failure, is caused by chromosomal aberrations with total or partial loss of one of the two X chromosomes. Spontaneous puberty, menarche, and pregnancy occur in some patients depending on the abnormality of the X. Moreover, spontaneous pregnancy is uncommon (<0.5%) for TS with 45,X monosomy. Among TS patients, 45,X/47,XXX karyotype is extremely rare. Previous reports have demonstrated that TS with 45,X/47,XXX is less severe than common TS due to higher occurrence of puberty (83%), menarche (57-67%), and fertility (14%) and lower occurrence of congenital anomalies (<5%)...
May 9, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28483347/the-potentiality-of-two-dimensional-preantral-follicle-culture-as-an-in-vitro-model-in-predicting-premature-ovarian-failure
#16
Ting Zhang, Ying Chen, Yang Yang, Zhonghui Wang, Qi Pan, Sichong Xu, Zuyue Sun
The purpose of this study is to identify the potential of a two-dimensional preantral follicle culture as an in vitro model of predicting premature ovarian failure. The two-dimensional preantral follicles culture method was established by cultivating preantral follicles collected from ICR F1 hybrids (aged 12-14days) for 12days. The preantral follicles were incubated with 0.54mg/ml cyclophosphamide, 0.5mg/ml busulfan, 0.12mg/ml cisplatin, 3.12mg/ml 4-vinylcyclohexene diepoxide, 5mg/ml D (+) galactose, and 0...
May 5, 2017: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/28479757/premature-ovarian-failure-an-unusual-manifestation-of-systemic-sclerosis
#17
Aruna Nigam, Anupam Prakash, Shikha Sharma, Narendra Kumar
A 31-year-old woman presented with secondary amenorrhoea and inability to conceive, which was of 3 years duration. She had Raynaud's phenomenon for 16 years, primary hypothyroidism for 5 years, digital ulcers for 4 years and skin tightening for 2 years. She had an expressionless face, with loss of wrinkles and restriction of the mouth opening along with flexion contractures of the hands and the terminal digit resorptions. Investigations showed Antinuclear antibodies (ANA) and anti-Scl 70 positivity confirming the presence of systemic sclerosis (SSc)...
January 2017: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/28470962/do-patients-have-worse-outcomes-in-heart-failure-than-in-cancer-a-primary-care-based-cohort-study-with-10-year-follow-up-in-scotland
#18
Mamas A Mamas, Matthew Sperrin, Margaret C Watson, Alasdair Coutts, Katie Wilde, Christopher Burton, Umesh T Kadam, Chun Shing Kwok, Allan B Clark, Peter Murchie, Iain Buchan, Philip C Hannaford, Phyo K Myint
AIMS: This study was designed to evaluate whether survival rates in patients with heart failure (HF) are better than those in patients with diagnoses of the four most common cancers in men and women, respectively, in a contemporary primary care cohort in the community in Scotland. METHODS AND RESULTS: Data were obtained from the Primary Care Clinical Informatics Unit from a database of 1.75 million people registered with 393 general practices in Scotland. Sex-specific survival modelling was undertaken using Cox proportional hazards models, adjusted for potential confounders...
May 3, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/28461075/rfsh-in-medically-assisted-procreation-evidence-for-ovarian-follicular-hyperplasia-and-interest-of-mass-spectrometry-to-measure-17-hydroxyprogesterone-and-%C3%AE-4-androstenedione-in-serum
#19
M C Menet, M L Hebert-Schuster, N Lahlou, L Marcellin, M C Leguy, V Gayet, J Guibourdenche
Ovarian monitoring requires the determination of serum estradiol and progesterone levels. We investigated whole follicular steroidogenesis under rFSH in medically assisted procreation (MAP: 26 IVF, 24 ICSI) compared to 11 controls (IUI). Estrone, estradiol, Δ4-androstenedione, testosterone, progesterone and 17-hydroxyprogesterone were measured by immunoassay and mass spectrometry except for estrogens. At the start of a spontaneous or induced cycle, steroids levels fluctuated within normal ranges: estradiol (314-585 pmol/L), estrone (165-379 pmol/L) testosterone (1...
April 28, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28460567/human-mesenchymal-stem-cells-partially-reverse-infertility-in-chemotherapy-induced-ovarian-failure
#20
Sara A Mohamed, Shahinaz M Shalaby, Mohamed Abdelaziz, Soumia Brakta, William D Hill, Nahed Ismail, Ayman Al-Hendy
INTRODUCTION: Chemotherapy is the most commonly used modality to treat human cancers; however, in many cases it causes irreversible ovarian failure. In this work, we plan to evaluate the restorative function of human bone marrow mesenchymal stem cells (BMSCs) in a chemotherapy-induced ovarian failure mouse model. METHODS: Acclimatized 4 to 6 week-old female mice (C57BL/6) were assigned randomly to a vehicle-treated control group (group 1), chemotherapy-treated group followed by vehicle alone (group 2), or chemotherapy-treated group followed by stem cell intraovarian injection (group 3)...
January 1, 2017: Reproductive Sciences
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