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https://www.readbyqxmd.com/read/28811691/association-of-prooxidant-antioxidant-balance-with-clinical-and-laboratory-parameters-and-its-relation-to-different-drug-regimens-in-polycystic-ovary-syndrome-women-with-normal-bmi
#1
Niloofar Heshmati, Shoaleh Shahgheibi, Bahram Nikkhoo, Sabrieh Amini, Mohammad Abdi
Polycystic ovarian syndrome is one of the most common hormonally leading cause infertility disorders. The effect of oxidant-antioxidant imbalance on disease progression has been studied in many disorders. The present study was aimed to evaluate prooxidant-antioxidant balance (PAB) in patients with polycystic ovarian syndrome compared to healthy subjects. We also studied the possible effect of treatment with available drugs on serum PAB. In this case-control study 100 polycystic ovary syndrome (PCOS) patients and 100 healthy individuals were enrolled in the study...
July 2017: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/28811672/an-evaluation-of-the-in-vivo-safety-of-nonporous-silica-nanoparticles-ocular-topical-administration-versus-oral-administration
#2
Martha Kim, Joo-Hee Park, Hyejoong Jeong, Jinkee Hong, Woo Sung Choi, Byung-Han Lee, Choul Yong Park
Nonporous silica nanoparticles (SiNPs) have potential as promising carriers for ophthalmic drugs. However, the in vivo safety of ocular topical SiNPs remains unclear. This study investigated the in vivo safety of oral and ocular topical applications of 100 nm-sized SiNPs in Sprague-Dawley rats. The rats were divided into the following four groups: low-dose oral administration (total 100 mg/kg of SiNPs mixed with food for one week), high-dose oral administration (total 1000 mg/kg of SiNPs mixed with food for one week), ocular topical administration (10 mg/ml concentration, one drop, applied to the right eyes four times a day for one month), or a negative control (no SiNP treatment)...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28811560/evidence-for-the-importance-of-post-transcriptional-regulatory-changes-in-ovarian-cancer-progression-and-the-contribution-of-mirnas
#3
Mengnan Zhang, Lilya V Matyunina, L DeEtte Walker, Weixuan Chen, Haopeng Xiao, Benedict B Benigno, Ronghu Wu, John F McDonald
High-throughput technologies have identified significant changes in patterns of mRNA expression over cancer development but the functional significance of these changes often rests upon the assumption that observed changes in levels of mRNA accurately reflect changes in levels of their encoded proteins. We systematically compared the expression of 4436 genes on the RNA and protein levels between discrete tumor samples collected from the ovary and from the omentum of the same OC patient. The overall correlation between global changes in levels of mRNA and their encoding proteins is low (r = 0...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28810875/role-of-iqgap3-in-metastasis-and-epithelial-mesenchymal-transition-in-human-hepatocellular-carcinoma
#4
Yongjie Shi, Nan Qin, Qiang Zhou, Yanqiu Chen, Sicong Huang, Bo Chen, Gang Shen, Hongyun Jia
BACKGROUND: Hepatocellular carcinoma (HCC) is one of the most lethal cancers worldwide owing to its high rates of metastasis and recurrence. The oncogene IQ motif-containing GTPase activating protein 3 (IQGAP3) is ubiquitously overexpressed in several human cancers, including liver, ovary, lung, large intestine, gastric, bone marrow, and breast malignancies and is involved in the invasion and metastasis of cancer cells. Therefore, we aimed to determine the biological role and molecular mechanism of IQGAP3 in HCC...
August 15, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28810859/the-presence-of-ovarian-cysts-in-a-captive-antillean-manatee-trichechus-manatus-manatus-l-1758
#5
Karolina Goździewska-Harłajczuk, Joanna Klećkowska-Nawrot, Stanisław Dzimira
BACKGROUND: Several pathological changes associated with reproductive systems of marine mammals have been reported in primary literature. However, no such records exist regarding ovarian cysts in the Antillean manatee (Trichechus manatus manatus L. 1758). CASE PRESENTATION: A nulliparous female Antillean manatee, held in captivity at the Wroclaw Zoological Garden, died in April 2015. The animal was 370 cm long from nose to tail and weighed 670 kg. The width of manatee's fluke was 80 cm...
August 15, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28810828/suitable-reference-gene-for-quantitative-real-time-pcr-analysis-of-gene-expression-in-gonadal-tissues-of-minnow-puntius-sophore-under-high-temperature-stress
#6
Arabinda Mahanty, Gopal Krishna Purohit, Sasmita Mohanty, Nihar Ranjan Nayak, Bimal Prasanna Mohanty
BACKGROUND: High ambient temperature is known to affect fish gonadal development and physiology in a variety of ways depending on the severity and duration of exposure; however, the underlying molecular mechanisms are poorly understood. Gonadal gene expression influence the gonadal development, physiology and the quality of egg/sperm produced in teleosts and the mechanistic understanding of spatio-temporal changes in the gonadal gene expression could be instrumental in controlling the fate of egg/sperm and the quality of seed produced...
August 15, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28810587/association-of-polycystic-ovary-syndrome-with-metabolic-syndrome-and-gestational-diabetes-aggravated-complication-of-pregnancy
#7
Kui Yao, Ce Bian, Xia Zhao
Polycystic ovary syndrome (PCOS) affects 5-20% of the reproductive age women globally. PCOS is diagnosed by the presence of hyperandrogenism, oligo-anovulation, and polycystic morphology of at least one ovary. Insulin resistance (IR), hyperinsulinemia and associated metabolic abnormalities including metabolic syndrome play a significant role in the development of PCOS. The chances of developing MS in PCOS women was shown to increase by almost 14-fold in patients with increasing body mass index. Even in the absence of overt obesity, a preferential deposition of intra-abdominal fat is noted in PCOS women and this intra-abdominal fat leads to impaired insulin action and functional IR and hyperandrogenism...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28810294/-morphologic-features-of-fallopian-tubal-epithelium-in-pelvic-high-grade-serous-carcinoma
#8
R J Zhao, Y Y Wang, Z Li, K Y Wu, L F Kong, W X Zheng
Objective: To study the pathologic features of fallopian tubal epithelium in patients with pelvic high-grade serous carcinoma (HGSC), to investigate its role in pelvic serous carcinogenesis and to reclassify the primary site of HGSC based on recently proposed criteria. Methods: The fallopian tubes in 58 cases of pelvic HGSC (54 cases of ovarian primary, 3 cases of tubal primary, 1 case of peritoneum) and 25 cases of pelvic non-HGSC (5 cases of ovarian low-grade serous cancer, 9 cases of endometrioid cancer, and 11 cases of clear cell ovary carcinoma) were collected from June 2015 to December 2016, and serially examined under light microscope (SEE-FIM protocol)...
August 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/28809393/ythdc2-is-an-n-6-methyladenosine-binding-protein-that-regulates-mammalian-spermatogenesis
#9
Phillip J Hsu, Yunfei Zhu, Honghui Ma, Yueshuai Guo, Xiaodan Shi, Yuanyuan Liu, Meijie Qi, Zhike Lu, Hailing Shi, Jianying Wang, Yiwei Cheng, Guanzheng Luo, Qing Dai, Mingxi Liu, Xuejiang Guo, Jiahao Sha, Bin Shen, Chuan He
N(6)-methyladenosine (m(6)A) is the most common internal modification in eukaryotic mRNA. It is dynamically installed and removed, and acts as a new layer of mRNA metabolism, regulating biological processes including stem cell pluripotency, cell differentiation, and energy homeostasis. m(6)A is recognized by selective binding proteins; YTHDF1 and YTHDF3 work in concert to affect the translation of m(6)A-containing mRNAs, YTHDF2 expedites mRNA decay, and YTHDC1 affects the nuclear processing of its targets. The biological function of YTHDC2, the final member of the YTH protein family, remains unknown...
August 15, 2017: Cell Research
https://www.readbyqxmd.com/read/28808611/red-snappers-and-red-herrings-pelvic-tuberculosis-causing-elevated-ca-125-and-mimicking-advanced-ovarian-cancer-a-case-report-and-literature-review
#10
Johnnie Alphonse Yates, Olivia Ann Collis, Thanasak Sueblinvong, Tarquin Kamakana Collis
Female genital tuberculosis (FGTB) is a form of extra-pulmonary tuberculosis that has been primarily described in developing countries, where it is an important cause of infertility, ectopic pregnancy, and miscarriage. FGTB is rare in the United States and because its clinical presentation is non-specific and often insidious, FGTB may be misdiagnosed as a gynecologic malignancy or endometriosis. The tendency of tuberculosis to dramatically increase serum CA 125 levels contributes to the potential for FGTB to be mistaken for ovarian cancer in particular...
August 2017: Hawai'i Journal of Medicine & Public Health: a Journal of Asia Pacific Medicine & Public Health
https://www.readbyqxmd.com/read/28808352/the-effect-of-androgen-excess-on-maternal-metabolism-placental-function-and-fetal-growth-in-obese-dams
#11
Romina Fornes, Manuel Maliqueo, Min Hu, Laila Hadi, Juan M Jimenez-Andrade, Kerstin Ebefors, Jenny Nyström, Fernand Labrie, Thomas Jansson, Anna Benrick, Elisabet Stener-Victorin
Pregnant women with polycystic ovary syndrome (PCOS) are often overweight or obese. To study the effects of maternal androgen excess in obese dams on metabolism, placental function and fetal growth, female C57Bl6J mice were fed a control (CD) or a high fat/high sucrose (HF/HS) diet for 4-10 weeks, and then mated. On gestational day (GD) 15.5-17.5, dams were injected with dihydrotestosterone (CD-DHT, HF/HS-DHT) or a vehicle (CD-Veh, HF/HS-Veh). HF/HS dams had higher fat content, both before mating and on GD18...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28807722/coronary-microvascular-dysfunction-is-not-associated-with-a-history-of-reproductive-risk-factors-in-women-with-angina-pectoris-an-ipower-substudy
#12
Hannah Elena Suhrs, Anna Meta Kristensen, Anna Bay Rask, Marie Mide Michelsen, Daria Frestad, Naja Dam Mygind, Kira Bové, Eva Prescott
BACKGROUND: Reproductive risk factors such as preeclampsia and recurrent miscarriages have been associated with adverse cardiovascular (CV) events. Underlying coronary microvascular dysfunction (CMD) may be a common denominator. PURPOSE: We investigated whether a history of reproductive risk factors was associated with CMD in women with angina pectoris and no obstructive coronary artery disease (CAD). METHODS: Participants from the iPOWER study, including women with angina pectoris and no obstructive CAD (<50% stenosis), were invited to complete an electronic survey regarding reproductive risk factors: recurrent miscarriages, gestational diabetes, preeclampsia, rhesus immunity, polycystic ovary syndrome and menopausal status as well as migraine and Raynaud phenomenon...
August 11, 2017: Maturitas
https://www.readbyqxmd.com/read/28807396/polycystic-ovary-morphology-age-based-ultrasound-criteria
#13
Hyun-Jun Kim, Judith M Adams, Jens A Gudmundsson, Gudmundur Arason, Cindy T Pau, Corrine K Welt
OBJECTIVE: To determine age-based criteria for polycystic ovary morphology. DESIGN: Cross-sectional, case-control design. SETTING: Outpatient setting. SUBJECT(S): Women with polycystic ovary syndrome (PCOS) defined by hyperandrogenism and irregular menses (n = 544) and controls with regular menses and no evidence of hyperandrogenism (n = 666) participated. Parameters were tested in a second cohort of women with PCOS (n = 105) and controls (n = 32) meeting the same criteria...
August 11, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28807160/treatment-of-chinese-herbal-medicine-for-female-infertility
#14
Dan Jiang, Lily Li, Bai-Yun Zeng
Female infertility is when a woman of reproductive age and sexual active, without contraception, cannot get pregnant after a year and more or keeps having miscarriages. Although conventional treatments for infertility such as hormone therapy, in vitro fertilization and many more, helped many female patients with infertility get pregnant during past a few decades, it is far from satisfactory with prolonging treatment time frames and emotional and financial burden. In recent years, more patients with infertile problems are seeking to alternative and complementary medicines to achieve a better outcome...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28807003/overexpression-of-mir-21-in-stem-cells-improves-ovarian-structure-and-function-in-rats-with-chemotherapy-induced-ovarian-damage-by-targeting-pdcd4-and-pten-to-inhibit-granulosa-cell-apoptosis
#15
Xiafei Fu, Yuanli He, Xuefeng Wang, Dongxian Peng, Xiaoying Chen, Xinran Li, Qing Wang
BACKGROUND: Chemotherapy-induced premature ovarian failure (POF) is a severe complication affecting tumor patients at a childbearing age. Mesenchymal stem cells (MSCs) can partially restore the ovarian structure and function damaged by chemotherapy. miR-21 is a microRNA that can regulate cell apoptosis. This study discusses the repair effect and mechanism of MSCs overexpressing miR-21 on chemotherapy-induced POF. METHODS: Rat MSCs and granulosa cells (GCs) were isolated in vitro...
August 14, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28806987/a-prospective-study-to-evaluate-the-risk-malignancy-index-and-its-diagnostic-implication-in-patients-with-suspected-ovarian-mass
#16
Santosh Kumar Dora, Atal Bihari Dandapat, Benudhar Pande, Jatindra Prasad Hota
BACKGROUND: There is no universal screening method for discrimination between benign and malignant adnexal masses yet. Various authors have tried tumor markers, imaging studies, cytology but no one yet is a definite method for screening of cancer ovary, for which a combined diagnostic modality has come to practice in form of RMI. With this background we conducted our study "Evaluation of risk malignancy index and its diagnostic value in patients with adnexal masses". METHODS: The aim of the study was to determine the effectiveness of risk of malignancy index (RMI-3) in preoperative discrimination between benign and malignant masses and also to reveal the most suitable cut off value...
August 14, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28805910/evaluation-of-an-intravaginal-triptorelin-acetate-gel-for-inducing-ovulation-in-mares
#17
C D Sinclair, S K Webel, T L Douthit, L W Murray, A L Jager, D M Grieger, J M Kouba
The objective of these studies was to investigate the efficacy of an intravaginal triptorelin acetate (TA) gel as an ovulation-inducing agent in mares. In Exp. 1, 24 mares were blocked using a combination of parity and age and randomly assigned to 1 of 3 treatment groups: 5 mL TA gel (TA5), 10 mL TA gel (TA10), or 5 mL vehicle gel only (CON). Following the appearance of a follicle ≥ 25 mm, a blood sample was obtained for measurement of LH from each mare every 24 h until treatment administration. When a follicle ≥ 35 mm was observed, treatments were administered intravaginally...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28805600/the-effect-of-oxytocin-and-kisspeptin-10-in-ovary-and-uterus-of-ischemia-reperfusion-injured-rats
#18
M Aslan, G Erkanli Senturk, H Akkaya, S Sahin, B Yılmaz
OBJECTIVE: Ischemia/reperfusion (I/R) injuries result in damage to endothelial and parenchymal cells. Oxytocin (OXY) stimulates uterine contraction during parturition and myoepithelial cells during suckling. OXY has been used as a protective antioxidant. Kisspeptin plays a key role in the central control of reproductive functions and onset of puberty. Recent studies show that these reproductive hormones have protective potential as antioxidant. The aim of this study is to investigate the potential protective effects of Kisspeptin and OXY as antioxidants on I/R injured ovary and uterus of female rats...
August 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28805302/torix-group-rickettsia-are-widespread-in-culicoides-biting-midges-diptera-ceratopogonidae-reach-high-frequency-and-carry-unique-genomic-features
#19
Jack Pilgrim, Mats Ander, Claire Garros, Matthew Baylis, Gregory D D Hurst, Stefanos Siozios
There is increasing interest in the heritable bacteria of invertebrate vectors of disease as they present novel targets for control initiatives. Previous studies on biting midges (Culicoides spp.), known to transmit several RNA viruses of veterinary importance, have revealed infections with the endosymbiotic bacteria, Wolbachia and Cardinium. However, rickettsial symbionts in these vectors are underexplored. Here, we present the genome of a previously uncharacterized Rickettsia endosymbiont from Culicoides newsteadi (RiCNE)...
August 14, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/28804932/kisspeptin-regulates-ovarian-steroidogenesis-during-delayed-embryonic-development-in-the-fruit-bat-cynopterus-sphinx
#20
Anuradha, Amitabh Krishna
Cynopterus sphinx, a fruit bat, undergoes delayed embryonic development during the winter months, a period that corresponds to low levels of progesterone and estradiol synthesis by the ovary. Kisspeptins (KPs) are a group of neuropeptide hormones that act via G-protein coupled receptor 54 (GPR54) to stimulate hypothalamic secretion of Gonadotropin-releasing hormone, thereby regulating ovarian steroidogenesis, folliculogenesis, and ovulation. GPR54 is also expressed in the ovary, suggesting a direct role for KPs in ovarian steroidogenesis...
August 14, 2017: Molecular Reproduction and Development
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