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Poor ovarian reserve

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https://www.readbyqxmd.com/read/28079292/germ-cell-tumors-insights-from-the-drosophila-ovary-and-the-mouse-testis
#1
REVIEW
Helen K Salz, Emily P Dawson, Jason D Heaney
Ovarian and testicular germ cell tumors of young adults are thought to arise from defects in germ cell development, but the molecular mechanisms underlying malignant transformation are poorly understood. In this review, we focus on the biology of germ cell tumor formation in the Drosophila ovary and the mouse testis, for which the evidence supports common underlying mechanisms such as blocking initiation into the differentiation pathway, impaired lineage progression, and sexual identity instability. We then discuss how these concepts inform our understanding of the disease in humans...
January 12, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28062641/melatonin-levels-in-follicular-fluid-as-markers-for-ivf-outcomes-and-predicting-ovarian-reserve
#2
Jing Tong, Shi-le Sheng, Yun Sun, Huihui Li, Wei-Ping Li, Cong Zhang, Zijiang Chen
Good-quality oocytes are critical for the success of in vitro fertilization (IVF), but, to date, there is no marker of ovarian reserve available that can accurately predict oocyte quality. Melatonin exerts its antioxidant actions as a strong radical scavenger that might affect oocyte quality directly, since it is the most potent antioxidant in follicular fluid. To investigate the precise role of endogenous melatonin in IVF outcomes, we recruited 61 women undergoing treatment cycles of IVF or intracytoplasmic sperm injection (ICSI) procedures and classified them into three groups according to their response to ovarian stimulation...
January 6, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28050963/live-births-after-polar-body-biopsy-and-frozen-thawed-cleavage-stage-embryo-transfer-case-report
#3
Fernando Guimarães, Matheus Roque, Marcello Valle, Alessandra Kostolias, Rodrigo A de Azevedo, Ciro D Martinhago, Marcos Sampaio, Selmo Geber
Pre-implantation genetic diagnosis (PGD) or screening (PGS) technology, has emerged and developed in the past few years, benefiting couples as it allows the selection and transfer of healthy embryos during IVF treatments. These techniques can be performed in oocytes (polar-body biopsy) or embryos (blastomere or trophectoderm biopsy). In this case report, we describe the first two live births to be published in Brazil after a polar-body (PB) biopsy. In case 1, a 42-year-old was submitted to PB biopsy with PGS due to advanced maternal age and poor ovarian reserve...
December 1, 2016: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/28032649/kras-mutation-coupled-with-p53-loss-is-sufficient-to-induce-ovarian-carcinosarcomas-in-mice
#4
Feng-Hsiang Tang, Tsung-Hua Hsieh, Chia-Yi Hsu, Hsiao-Yun Lin, Cheng-Yu Long, Kuang-Hung Cheng, Eing-Mei Tsai
Ovarian carcinosarcoma cancer is the most lethal form of gynecological malignancy, but the pathogenesis and biological function for this ovarian cancer remain unknown. We establishment the transgenic mouse model of K-ras(G12D) p53(loxP/loxP) and found that K-ras mutation and p53 deletion within the ovarian surface epithelium gave rise to ovarian lesions with a hyperproliferation and endometrioid glandular morphology. Furthermore, double mutant ovaries formed ovarian carcinosarcomas that were high grade and poorly differentiated...
December 29, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27927044/dehydroepiandrosterone-dhea-supplementation-and-ivf-outcome-in-poor-responders
#5
Olga Triantafyllidou, George Sigalos, Nikos Vlahos
Ovarian stimulation of poor ovarian responders still remains a challenging issue. The incidence of poor responders among infertile women is reported in 9-24% IVF cycles and is associated with very low clinical pregnancy rates. Different treatments have been reported in the literature in an attempt to identify the best stimulation protocol for those patients. Administration of dehydroepiandrosterone acetate (DHEA) was suggested as a promising treatment. It is well known that androgens can influence ovarian follicular growth, augment steroidogenesis, promote follicular recruitment and increase the number of primary and pre-antral follicles...
December 7, 2016: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/27845267/protective-effects-and-mechanisms-investigation-of-kuntai-capsule-on-the-ovarian-function-of-a-novel-model-with-accelerated-aging-ovaries
#6
Jinjin Zhang, Li Fang, Liangyan Shi, Zhiwen Lai, Zhiyong Lu, Jiaqiang Xiong, Meng Wu, Aiyue Luo, Shixuan Wang
ETHNOPHARMACOLOGICAL RELEVANCE: Kuntai capsule, a traditional Chinese medicine, has been widely used for the clinical treatment of menopausal syndrome. However, its mechanisms remain poorly understood. Considering that aging ovaries are the primary cause of menopause, this study was designed to investigate the effects and mechanisms of Kuntai capsule on ovarian function in a novel mice model with accelerated aging ovaries. MATERIALS AND METHODS: Seventy-five female C57BL/6 mice were chosen for this study...
January 4, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27836979/a-mild-ovarian-stimulation-strategy-in-women-with-poor-ovarian-reserve-undergoing-ivf-a-multicenter-randomized-non-inferiority-trial
#7
M A Youssef, M van Wely, H Al-Inany, T Madani, N Jahangiri, S Khodabakhshi, M Alhalabi, M Akhondi, S Ansaripour, R Tokhmechy, L Zarandi, A Rizk, M El-Mohamedy, E Shaeer, M Khattab, M H Mochtar, F van der Veen
STUDY QUESTION: In subfertile women with poor ovarian reserve undergoing IVF does a mild ovarian stimulation strategy lead to comparable ongoing pregnancy rates in comparison to a conventional ovarian stimulation strategy? SUMMARY ANSWER: A mild ovarian stimulation strategy in women with poor ovarian reserve undergoing IVF leads to similar ongoing pregnancy rates as a conventional ovarian stimulation strategy. WHAT IS KNOWN ALREADY: Women diagnosed with poor ovarian reserve are treated with a conventional ovarian stimulation strategy consisting of high-dose gonadotropins and pituitary downregulation with a long mid-luteal start GnRH-agonist protocol...
January 2017: Human Reproduction
https://www.readbyqxmd.com/read/27759937/differences-in-survival-for-patients-with-familial-and-sporadic-cancer
#8
Myeongjee Lee, Marie Reilly, Linda Sofie Lindström, Kamila Czene
Family history of cancer is a well-known risk factor but the role of family history in survival is less clear. The aim of this study was to investigate the association between family history and cancer survival for the common cancers in Sweden. Using the Swedish population-based registers, patients diagnosed with the most common cancers were followed for cancer-specific death during 1991-2010. We used multivariate proportional hazards (Cox) regression models to contrast the survival of patients with a family history of cancer (individuals whose parent or sibling had a concordant cancer) to the survival of patients without a family history...
February 1, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27741555/morphology-and-morphometry-of-the-ovaries-and-uteri-of-the-amazonian-freshwater-stingrays-potamotrygonidae-elasmobranchii
#9
Maria Isabel da Silva, Maria Inês Braga de Oliveira, Oscar Tadeu Ferreira da Costa, Wallice Paxiúba Duncan
The reproductive biology of South American freshwater stingrays (family Potamotrygonidae) is still poorly studied compared to other marine species. In the present study, we examined the gross anatomy and histology of six species of potamotrygonids from the Amazon basin and described the structural asymmetry of the ovaries and their relationship between ovarian and uterine fecundities. Stereological techniques were used to quantify the volume of ovarian and epigonal organ tissue associated with the left and right sides of the Potamotrygon wallacei, a recently described species, locally known as the cururu ray...
October 14, 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27689035/the-meaning-of-anti-m%C3%A3-llerian-hormone-levels-in-patients-at-a-high-risk-of-poor-ovarian-response
#10
REVIEW
Hyun Jong Park, Geun Ho Lee, Du Sik Gong, Tae Ki Yoon, Woo Sik Lee
Measurements of ovarian reserve play an important role in predicting the clinical results of assisted reproductive technology (ART). The ideal markers of ovarian reserve for clinical applications should have high specificity in order to determine genuine poor responders. Basal follicle-stimulating hormone levels, antral follicle count, and serum anti-Müllerian hormone (AMH) levels have been suggested as ovarian reserve tests that may fulfill this requirement, with serum AMH levels being the most promising parameter...
September 2016: Clinical and Experimental Reproductive Medicine
https://www.readbyqxmd.com/read/27687487/individualised-fsh-dosing-and-ivf-outcome-in-agonist-downregulated-cycles-a-systematic-review
#11
Theodora C Van Tilborg, Frank J M Broekmans, Madeleine Dólleman, Marinus J C Eijkemans, Ben Willem Mol, Joop S E Laven, Helen L Torrance
INTRODUCTION: This systematic review examines whether individualised gonadotropin dosing in in-vitro fertilisation (IVF) leads to better outcomes with respect to safety, costs and live birth rates compared to standard dosing. MATERIAL AND METHODS: Electronic databases searched were PubMed, Embase and Cochrane. The primary outcome was live birth rate. The secondary outcomes included pregnancy rate, costs and safety. Papers were critically appraised by two reviewers...
September 30, 2016: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/27549023/does-poor-ovarian-response-to-gonadotrophins-predict-early-menopause-a-retrospective-cohort-study-with-minimum-of-10-year-follow-up
#12
Natasha A K Szmidt, Siladitya Bhattacharya, Abha Maheshwari
One in 10 women reach menopause before they are 45 years of age, and 1 in 100 before 40. In most cases, poor ovarian response to gonadotrophins is a result of poor ovarian reserve. An early menopause is associated with long-term health risks. Identifying women at risk may allow appropriate measures to be instigated early. Women aged <40 years treated in the Aberdeen Fertility Centre between 1998 and 2002 were identified. Those with poor response to an age appropriate dose of gonadotrophins (obtaining ≤3 eggs or had cycle cancelled) after exclusion of hypothalamic insufficiency, or whose cycle was cancelled due to poor response were age matched with good responders (6-15 eggs)...
September 2016: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/27510172/how-fsh-and-amh-reflect-probabilities-of-oocyte-numbers-in-poor-prognosis-patients-with-small-oocyte-yields
#13
Norbert Gleicher, Sarah K Darmon, Vitaly A Kushnir, Andrea Weghofer, Qi Wang, Lin Zhang, David F Albertini, David H Barad
In poor prognosis patients undergoing in vitro fertilization, advance determinations of likely oocyte yields are especially important since oocyte numbers to large degree determine in vitro fertilization cycle outcomes. Based on baseline follicle stimulating hormone and anti-müllerian hormone levels at time of initial presentation, we here, therefore, determined at all ages the probabilities of obtaining 1-≥5 oocytes in a retrospective analysis of 1554 consecutive patients undergoing in vitro fertilization cycles at an academically affiliated private fertility center...
August 10, 2016: Endocrine
https://www.readbyqxmd.com/read/27496944/nomogram-to-predict-live-birth-rate-after-fertility-sparing-surgery-for-borderline-ovarian-tumours
#14
L Ouldamer, S Bendifallah, I Naoura, G Body, C Uzan, P Morice, M Ballester, E Daraï
STUDY QUESTION: Can a nomogram be used to predict the individual probability of live birth (LB) in women with borderline ovarian tumours (BOTs) receiving primary fertility-sparing surgery? SUMMARY ANSWER: A nomogram built according to the woman's age, histological subtype (serous versus mucinous), type of ovarian surgical treatment and FIGO stage can accurately predict the probability of LB in women with BOT. WHAT IS KNOWN ALREADY: Current prediction models determine the probability of pregnancy after medically assisted reproduction (MAR) and form the basis of patient counselling to guide the decision as to whether to consider in vitro fertilization but do not take into account prediction of the LB rate...
August 2016: Human Reproduction
https://www.readbyqxmd.com/read/27452080/risk-factors-and-biomarkers-for-the-recurrence-of-ovarian-endometrioma-about-the-immunoreactivity-of-progesterone-receptor-isoform-b-and-nuclear-factor-kappa-b
#15
Ae Ra Han, Taek Hoo Lee, Sunzoo Kim, Hwa Young Lee
Ovarian endometrioma is one of the important causes of poor ovarian reserve and up to half of them have been recurred. However, the treatment for recurrence prevention has limited efficiency and repeated surgery makes worsen the ovarian reserve. To find better management for recurrence prevention, we investigated risk factors and biomarkers for the recurrent endometriomas. The medical records of women with history of surgical dissection for ovarian endometrioma were collected. After exclusion of the cases with concurrent hysterectomy, been menopaused during follow-up, incomplete medical record, and loss of follow-up, a total of 134 women were enrolled...
July 23, 2016: Gynecological Endocrinology
https://www.readbyqxmd.com/read/27397619/effectiveness-of-embolization-or-sclerotherapy-of-pelvic-veins-for-reducing-chronic-pelvic-pain-a-systematic-review
#16
Jane P Daniels, Rita Champaneria, Laila Shah, Janesh K Gupta, Judy Birch, Jonathan G Moss
PURPOSE: Chronic pelvic pain (CPP) in the presence of dilated and refluxing pelvic veins is often described as pelvic congestion syndrome (PCS), although the causal relationship between pelvic vein incompetence and CPP has not been established. Percutaneous embolization is the principal treatment for PCS, with high success rates cited. This study was undertaken to systematically and critically review the effectiveness of embolization of incompetent pelvic veins. MATERIALS AND METHODS: A comprehensive search strategy encompassing various terms for pelvic congestion, pelvic pain, and embolization was deployed in 17 bibliographic databases, with no restriction on study design...
October 2016: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/27382229/poor-ovarian-reserve
#17
REVIEW
Padma Rekha Jirge
Poor ovarian reserve (POR) is an important limiting factor for the success of any treatment modality for infertility. It indicates a reduction in quantity and quality of oocytes in women of reproductive age group. It may be age related as seen in advanced years of reproductive life or may occur in young women due to diverse etiological factors. Evaluating ovarian reserve and individualizing the therapeutic strategies are very important for optimizing the success rate. Majority or women with POR need to undergo in vitro fertilization to achieve pregnancy...
April 2016: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/27300031/fertility-in-women-of-late-reproductive-age-the-role-of-serum-anti-m%C3%A3-llerian-hormone-amh-levels-in-its-assessment
#18
REVIEW
B Meczekalski, A Czyzyk, M Kunicki, A Podfigurna-Stopa, L Plociennik, G Jakiel, M Maciejewska-Jeske, K Lukaszuk
INTRODUCTION: Fertility is referred to the capability for having offspring and can be evaluated by fertility rate. Women's fertility is strictly dependent on individual's age. The fertility peak occurs in the early 20s, and it starts to decline in the third and fourth decades of life (falling sharply after age 35). AIM: The aim of this work is to review the available data concerning fertility in women of late reproductive age, especially the role of serum anti-Müllerian hormone (AMH) levels...
November 2016: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/27225067/the-prognostic-significance-of-specific-hox-gene-expression-patterns-in-ovarian-cancer
#19
Zoe Kelly, Carla Moller-Levet, Sophie McGrath, Simon Butler-Manuel, Thumuluru Kavitha Madhuri, Andrzej M Kierzek, Hardev Pandha, Richard Morgan, Agnieszka Michael
HOX genes are vital for all aspects of mammalian growth and differentiation, and their dysregulated expression is related to ovarian carcinogenesis. The aim of the current study was to establish the prognostic value of HOX dysregulation as well as its role in platinum resistance. The potential to target HOX proteins through the HOX/PBX interaction was also explored in the context of platinum resistance. HOX gene expression was determined in ovarian cancer cell lines and primary EOCs by QPCR, and compared to expression in normal ovarian epithelium and fallopian tube tissue samples...
October 1, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27206316/focused-screening-of-mitochondrial-metabolism-reveals-a-crucial-role-for-a-tumor-suppressor-hbp1-in-ovarian-reserve
#20
Z Dong, M Huang, Z Liu, P Xie, Y Dong, X Wu, Z Qu, B Shen, X Huang, T Zhang, J Li, J Liu, T Yanase, C Zhou, Y Xu
Granulosa cells (GCs) are tightly associated with fertility and the fate of ovarian follicles. Mitochondria are the central executers of apoptosis. However, the genetic basis underlying mitochondrial modulation in GCs during the ovarian development is poorly understood. Here, CRISPR/Cas9-mediated genetic screening was used to identify genes conferring mitochondrial metabolism in human GCs. The results uncovered roles for several tumor suppressors, including HBP1, in the augmentation of mitochondrial function...
October 2016: Cell Death and Differentiation
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