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https://www.readbyqxmd.com/read/27894151/value-of-the-ultrasound-in-the-study-of-ovarian-reserve-for-prediction-of-oocyte-recovery
#1
Meire Spressão, Antonio Hélio Oliani, Denise Cristina Mós Vaz Oliani
Purpose To identify which methods used in the assessment of the ovarian reserve are exclusive or complementary to identify the best response to follicle development. Methods Retrospective cohort study, involving patients undergoing assisted reproduction treatment at the Instituto de Medicina Reprodutiva e Fetal, from April 2009 to July 2014. Age, biochemical tests, and ultrasound were assessed. The data were analyzed to predict the follicular development and the relation between them, using, for statistical analysis, Statistical Package for Social Sciences software...
October 2016: Revista Brasileira de Ginecologia e Obstetrícia
https://www.readbyqxmd.com/read/27890715/effects-of-atrazine-on-ovarian-growth-in-the-estuarine-crab-neohelice-granulata
#2
G R Silveyra, I S Canosa, E M Rodríguez, D A Medesani
Atrazine, a herbicide that is intensively used in Argentina, was assayed to evaluate the alteration of reproduction in a wild species of crustaceans. Adult females of the estuarine crab Neohelice granulata were exposed to formulated atrazine during the 3-month pre-reproductive period. Three atrazine concentrations (0.03, 0.3 and 3mg/L) were assayed, together with a water dilution control. At the end of the exposure period, several variables concerning the energetic status of animals were measured, such as weight gain, glycemia, and energy reserves in both muscle and hepatopancreas...
November 24, 2016: Comparative Biochemistry and Physiology. Toxicology & Pharmacology: CBP
https://www.readbyqxmd.com/read/27889913/long-term-melatonin-treatment-delays-ovarian-aging
#3
Hiroshi Tamura, Mai Kawamoto, Shun Sato, Isao Tamura, Ryo Maekawa, Toshiaki Taketani, Hiromi Aasada, Eiichi Takaki, Akira Nakai, Russel J Reiter, Norihiro Sugino
Ovarian aging is characterized by gradual declines in oocyte quantity and quality. Melatonin is considered an anti-aging agent due to its cytoprotective actions as an antioxidant. The present study examined whether long-term melatonin treatment would delay ovarian aging in mice. Female ICR mice (10 weeks old) were given melatonin-containing water (100 μg/ml; melatonin) or water only until 43 weeks of age. Their oocytes were recovered from the oviduct, and in vitro fertilization was performed. The ovaries were used for a histological analysis of the number of follicles...
November 27, 2016: Journal of Pineal Research
https://www.readbyqxmd.com/read/27882760/-surgical-treatment-of-endometriomas-and-ovarian-reserve
#4
D Barátová, L Mekiňová, K Slabá, I Crha
OBJECTIVE: To present an overview of affect an ovarian reserve in women after laparoscopic surgery for ovarian endometriosis. SUBJECT: Review. SETTING: Department of Obstetric and Gynecology, Hospital Kyjov; Department of Obstetric and Gynecology, University Hospital, Brno. METHODS: Summary of the results of recent studies. RESULTS: The decrease in ovarian reserve has been detected in 8 of 9 evaluated studies, specifically in one retrospective study, six prospective studies and in one systematic review, the results of the meta-analysis don´t prove the reduction of ovarian reserve after the surgery for endometrioma, reduced ovarian reserve evaluated by the antral follicle count has been proven in the affect ovary before the surgery...
2016: Ceská Gynekologie
https://www.readbyqxmd.com/read/27864985/telomeric-repeat-containing-rna-terra-related-to-polycystic-ovary-syndrome-pcos
#5
Caiqin Wang, Fengxian Shen, Yuning Zhu, Yuying Fang, Shiming Lu
CONTEXT: Telomeric repeat-containing RNA (TERRA) participates in the regulation of telomere length, and leukocyte telomere length (LTL) plays an important role in the pathophysiology of polycystic ovary syndrome (PCOS), but little is known about the role of TERRA in PCOS. OBJECTIVE: To evaluate the role of TERRA and peripheral blood leukocyte telomere length (LTL) in polycystic ovary syndrome (PCOS). DESIGN AND PARTICIPANTS: Forty women with PCOS and thirty-five heathy women without PCOS were recruited...
November 16, 2016: Clinical Endocrinology
https://www.readbyqxmd.com/read/27862876/tomato-facultative-parthenocarpy-results-from-slagamous-like-6-loss-of-function
#6
Chen Klap, Ester Yeshayahou, Anthony M Bolger, Tzahi Arazi, Suresh K Gupta, Sara Shabtai, Björn Usadel, Yehiam Salts, Rivka Barg
The extreme sensitivity of the microsporogenesis process to moderately high or low temperatures is a major hindrance for tomato (Solanum lycopersicum) sexual reproduction and hence year-round cropping. Consequently, breeding for parthenocarpy, i.e. fertilization-independent fruit set, is considered a valuable goal especially for maintaining sustainable agriculture in the face of global warming. A mutant capable of setting high quality seedless (parthenocarpic) fruit was found following a screen of EMS mutagenized tomato population for yielding under heat stress...
November 11, 2016: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/27862494/ht-proteins-contribute-to-s-rnase-independent-pollen-rejection-in-solanum
#7
Alejandro Tovar-Méndez, Lu Lu, Bruce McClure
Plants have mechanisms to recognize and reject pollen from other species. Although widespread, these mechanisms are less well understood than the self-incompatibility (SI) mechanisms plants use to reject pollen from close relatives. Previous studies have shown that some interspecific reproductive barriers (IRBs) are related to SI in the Solanaceae. For example, the pistil SI proteins S-RNase and HT protein function in a pistil-side IRB that causes rejection of pollen from self-compatible (SC) red/orange-fruited species in the tomato clade...
November 8, 2016: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/27861716/high-androgen-levels-protect-against-hypothyroidism
#8
Johanna Schmidt, Eva Dahlgren, Inger Bryman, Kerstin Berntorp, Penelope Trimpou, Lars Wilhelmsen, Kerstin Landin-Wilhelmsen
Hypothyroidism is a common disorder, mainly in women but less frequently found in women with polycystic ovary syndrome (PCOS). The objective was to test the hypothesis that hyperandrogenism might protect against hypothyroidism MATERIAL AND METHODS: The data from three prospective follow-up (up to 21 years) and one register study were compared; women with PCOS (Rotterdam criteria), n=25, women with Turners syndrome, n=217, a random population sample of women, n=315, and men, n=95, (the WHO MONICA study). Findings were to be verified or rejected in all females, n=553 716, from the same region...
November 12, 2016: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/27847382/there-is-a-positive-correlation-between-socioeconomic-status-and-ovarian-reserve-in-women-of-reproductive-age
#9
Mert Ulas Barut, Elif Agacayak, Murat Bozkurt, Tarık Aksu, Talip Gul
BACKGROUND The purpose of this study was to investigate the potential association between socioeconomic status and ovarian reserve, anti-Mullerian hormone level, antral follicle count, and follicle stimulating hormone level in women of reproductive age. MATERIAL AND METHODS A total of 101 married women between 20-35 years of age who presented to the Department of Obstetrics and Gynecology, Health Research System In Vitro Fertilization (HRS IVF) Center between October 2014 and November 2015 and met the inclusion criteria were included in this study...
November 16, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
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
#10
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...
November 11, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27842995/antim%C3%A3-llerian-hormone-levels-and-cardiometabolic-risk-in-young-women-with-polycystic-ovary-syndrome
#11
Rebecca A Feldman, Kathleen O'Neill, Samantha F Butts, Anuja Dokras
OBJECTIVE: To determine the association between antimüllerian hormone (AMH) levels and metabolic syndrome (MetSyn) in young women with polycystic ovary syndrome (PCOS). DESIGN: Cross-sectional study. SETTING: Academic PCOS center. PATIENT(S): A total of 252 women aged 18-46 years with PCOS. INTERVENTION: None. MAIN OUTCOME MEASURE(S): Association of AMH with markers of cardiometabolic risk and MetSyn...
November 11, 2016: Fertility and Sterility
https://www.readbyqxmd.com/read/27813082/cancer-risks-in-nairobi-2000-2014-by-ethnic-group
#12
Anne Korir, Emma Yu Wang, Peter Sasieni, Nathan Okerosi, Victor Ronoh, D Maxwell Parkin
We investigated the ethnic differences in the risk of several cancers in the population of Nairobi, Kenya, using data from the Nairobi Cancer Registry. The registry records the variable "Tribe" for each case, a categorisation that includes, as well as 22 tribal groups, categories for Kenyans of European and of Asian origin, and non-Kenyan Africans. Tribes included in the final analysis were Kikuyu, Kamba, Kisii, Kalenjin, Luo, Luhya, Somalis, Asians, non-Kenyans, Caucasians, Other tribes and unknown. The largest group was taken as the reference category for the calculation of odds ratios; this was African Kenyans (for comparisons by race), and Kikuyus (the tribe with the largest numbers of cancer registrations (38% of the total)) for comparisons between the Kenyan tribes...
November 3, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27812411/specialization-on-pollen-or-nectar-in-bumblebee-foragers-is-not-associated-with-ovary-size-lipid-reserves-or-sensory-tuning
#13
Adam R Smith, Peter Graystock, William O H Hughes
Foraging specialization allows social insects to more efficiently exploit resources in their environment. Recent research on honeybees suggests that specialization on pollen or nectar among foragers is linked to reproductive physiology and sensory tuning (the Reproductive Ground-Plan Hypothesis; RGPH). However, our understanding of the underlying physiological relationships in non-Apis bees is still limited. Here we show that the bumblebee Bombus terrestris has specialist pollen and nectar foragers, and test whether foraging specialization in B...
2016: PeerJ
https://www.readbyqxmd.com/read/27805276/anti-m%C3%A3-llerian-hormone-reflects-the-severity-of-polycystic-ovary-syndrome
#14
S L Jacob, H P Field, N Calder, H M Picton, A H Balen, J H Barth
OBJECTIVE: To examine the relationship between anti-Müllerian hormone (AMH) and the severity of the phenotype of patients with polycystic ovary syndrome (PCOS) and whether AMH can act as a diagnostic marker for PCOS? DESIGN: A prospective diagnostic utility study of AMH as a marker of PCOS. PATIENTS: A consecutive series of women presenting to a tertiary infertility clinic (n = 164) plus a second series of women prepared for assisted conception treatments (n = 89) recruited between June 2012 and May 2013...
November 2, 2016: Clinical Endocrinology
https://www.readbyqxmd.com/read/27803581/effect-of-antitubercular-treatment-on-ovarian-function-in-female-genital-tuberculosis-with-infertility
#15
Jai Bhagwan Sharma, J Sneha, U B Singh, Sunesh Kumar, K K Roy, Neeta Singh, Sona Dharmendra
AIM: To evaluate the effect of antitubercular therapy (ATT) on an ovarian function such as ovarian reserve, ovarian dimensions, and ovarian stromal blood flow. SETTINGS AND DESIGN: Prospective study design. MATERIALS AND METHODS: Fifty infertile women with female genital tuberculosis (FGTB) without tubo-ovarian masses diagnosed by positive acid-fast bacilli culture or epithelioid granuloma on endometrial aspirate or positive polymerase chain reaction with positive findings on laparoscopy or hysteroscopy were recruited...
July 2016: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/27799628/ovarian-function-and-reproductive-senescence-in-the-rat-role-of-ovarian-sympathetic-innervation
#16
Gonzalo Cruz, Daniela Fernandois, Alfonso Paredes
Successful reproduction is the result of a myriad of interactions in which the ovary and the ovarian follicular reserve play a fundamental role. At present, women who delay maternity until after 30 years of age have a decreased fertility rate due to various causes, including damaged follicles and a reduction in the reserve pool of follicles. Therefore, the period just prior to menopause, also known as the subfertile period, is important. The possibility of modulating the follicular pool and the health of follicles during this time period to improve fertility is worth exploring...
October 31, 2016: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/27798957/identification-of-an-igg-cdr-sequence-contributing-to-co-purification-of-the-host-cell-protease-cathepsin-d
#17
Jared S Bee, LeeAnn M Machiesky, Li Peng, Kristin C Jusino, Matthew Dickson, Jeffrey Gill, Douglas Johnson, Hung-Yu Lin, Kenneth Miller, Jenny Heidbrink Thompson, Richard L Remmele
Recombinant therapeutic monoclonal antibodies (mAbs) must be purified from host cell proteins (HCPs), DNA, and other impurities present in Chinese hamster ovary (CHO) cell culture media. HCPs can potentially result in adverse clinical responses in patients and, in specific cases, have caused degradation of the final mAb product. As reported previously, residual traces of cathepsin D caused particle formation in the final product of mAb-1. The current work was focused on identification of a primary sequence in mAb-1 responsible for the binding and consequent co-purification of trace levels of CHO cathepsin D...
October 31, 2016: Biotechnology Progress
https://www.readbyqxmd.com/read/27793768/cognitive-changes-across-the-menopause-transition-a-longitudinal-evaluation-of-the-impact-of-age-and-ovarian-status-on-spatial-memory
#18
Stephanie V Koebele, Sarah E Mennenga, Ryoko Hiroi, Alicia M Quihuis, Lauren T Hewitt, Mallori L Poisson, Christina George, Loretta P Mayer, Cheryl A Dyer, Leona S Aiken, Laurence M Demers, Catherine Carson, Heather A Bimonte-Nelson
Cognitive changes that occur during mid-life and beyond are linked to both aging and the menopause transition. Studies in women suggest that the age at menopause onset can impact cognitive status later in life; yet, little is known about memory changes that occur during the transitional period to the postmenopausal state. The 4-vinylcyclohexene diepoxide (VCD) model simulates transitional menopause in rodents by depleting the immature ovarian follicle reserve and allowing animals to retain their follicle-deplete ovarian tissue, resulting in a profile similar to the majority of perimenopausal women...
October 26, 2016: Hormones and Behavior
https://www.readbyqxmd.com/read/27790765/acupuncture-does-not-restore-metabolic-disturbances-in-the-p450-aromatase-inhibitor-induced-polycystic-ovary-syndrome-rat-model
#19
Manuel Maliqueo, Anna Benrick, Rodrigo Rodrigues Marcondes, Julia Johansson, Miao Sun, Elisabet Stener-Victorin
Low-frequency electroacupuncture restores sex steroid synthesis and sympathetic activity in women with polycystic ovary syndrome, which may improve its metabolic disturbances likely by modulating sympathetic nerve activity or sex steroid synthesis. We investigated whether low-frequency electroacupuncture regulates the metabolic function to the same extent as treatment with estradiol or β-adrenergic blocking in a rat model of polycystic ovary syndrome induced by a P450 aromatase inhibitor (letrozole). Letrozole (200 μg per day) or placebo pellets were implanted in pre-pubertal Wistar rats...
October 28, 2016: Experimental Physiology
https://www.readbyqxmd.com/read/27787477/assessment-of-ovarian-reserve-and-fertility-preservation-strategies-in-children-treated-for-cancer
#20
Laura Guzy, Isabelle Demeestere
INTRODUCTION: The survival rate of chemotherapy treatments of malignant cancer or non- malignant conditions are continuously improving. As a result, there is an increased number of patients who received a gonadotoxic treatment during childhood and who later face fertility issues. Depending on the extent of the damage to the ovaries, acute or late complications may occur. Acute ovarian failure is defined by permanent amenorrhea after a high-risk treatment. When the drugs used are less gonadotoxic, ovarian insufficiency might appear later...
October 27, 2016: Minerva Ginecologica
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