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Induction of ovulation

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https://www.readbyqxmd.com/read/28736292/reproductive-features-and-use-of-an-anti-inflammatory-drug-in-estrus-induced-dairy-goats-artificially-inseminated-in-a-standing-position-with-cervix-immobilization
#1
Jeferson Ferreira Fonseca, Gilmar Pereira Alvim, Joanna Maria Gonçalves Souza-Fabjan, Maria Emília Franco Oliveira, Viviane Lopes Brair, Felipe Zandonadi Brandão, Olivardo Facó
This study evaluated reproductive features and role of Flunixin-Meglumine at timed artificial insemination (AI), using a new technique of standing position with cervix immobilization. In Experiment 1, 10 goats (n=5 nulliparous [Null] and 5 pluriparous [Plu]) were evaluated after estrus induction by recorded reproductive parameters to define the ideal time for AI. In Experiment 2, goats were artificially inseminated 51-54h after sponge removal with frozen-thawed semen. At AI, 1mL saline (CONTROL; 18 Null and 14 Plu) or 50mg Flunixin-Meglumine (FLUNIXIN; 15 Null and 18 Plu) was administered i...
July 20, 2017: Reproductive Biology
https://www.readbyqxmd.com/read/28725153/ovulation-induction-by-metformin-among-obese-versus-non-obese-women-with-polycystic-ovary-syndrome
#2
Yazed Sulaiman Al-Ruthia, Hazem Al-Mandeel, Hisham AlSanawi, Wael Mansy, Reem AlGasem, Lama AlMutairi
OBJECTIVES: There is some evidence that the efficacy of metformin as an ovulation stimulation agent depends on the body mass index (BMI) of the treated anovulatory women with polycystic ovary syndrome (PCOS). The aim of this study was to examine the likelihood of successful ovulation among obese (BMI ⩾30 kg/m(2)) versus non-obese (BMI <30 kg/m(2)) women with PCOS. METHODS: A total of 243 medical charts of women with PCOS who visited King Khaled University Hospital (KKUH) in Riyadh, Saudi Arabia, between 2006 and 2012 were reviewed...
July 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
https://www.readbyqxmd.com/read/28724178/could-myo-inositol-soft-gel-capsules-outperform-clomiphene-in-inducing-ovulation-results-of-a-pilot-study
#3
A-L Rolland, M Peigné, P Plouvier, A Dumont, S Catteau-Jonard, D Dewailly
OBJECTIVE: Insulin resistance is known to worsen polycystic ovarian syndrome (PCOS). The management of insulin resistance is crucial in the treatment of PCOS and insulin-sensitizing molecule as myo-inositol (MYO) seems to have promising effects. The aim of our pilot study was to study whether supplementation with MYO can improve patients' sensitivity to clomiphene citrate (CC) in terms of ovulation and pregnancy rates. PATIENTS AND METHODS: This study included 26 patients with PCOS, eligible to ovulation induction with CC...
June 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28713816/effect-of-the-camelid-s-seminal-plasma-ovulation-inducing-factor-%C3%AE-ngf-a-kisspeptin-target-hypothesis
#4
REVIEW
Khalid El Allali, Najlae El Bousmaki, Hassan Ainani, Valérie Simonneaux
Female mammals are classified into spontaneous and induced ovulators based on the mechanism eliciting ovulation. Ovulation in spontaneous species (e.g., human, sheep, cattle, horse, pigs, and most rodents) occurs at regular intervals and depends upon the circulating estradiol. However, in induced ovulators (e.g., rabbits, ferrets, cats, and camelids), ovulation is associated with coitus. In the later, various factors have been proposed to trigger ovulation, including auditory, visual, olfactory, and mechanic stimuli...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28708506/expression-and-localization-of-cyclooxygenases-in-the-oviduct-of-laying-hens-during-the-ovulatory-cycle
#5
M Elhamouly, N Isobe, Y Yoshimura
Prostaglandins (PGs) play important roles in regulation of the functions of the hen oviduct. However, little is known about the expression and localization of the rate-limiting cyclooxygenases (COX-1 and COX-2) in the oviduct. The aim of this study was to determine the COXs expression and localization in the different segments of the oviduct and to investigate changes in their expression levels during the ovulatory cycle of laying hens. White Leghorn laying hens were killed at 0, 4, 7, 16 and 24 h after oviposition, and samples from the infundibulum, magnum, isthmus, uterus, and vagina were collected...
June 13, 2017: Theriogenology
https://www.readbyqxmd.com/read/28701684/expression-of-aldo-keto-reductase-family-1-member-c14-during-ovulation-in-the-rat
#6
Phuong T M Dam, You-Jee Jang, Ja-Yeon Kim, Seul-Gee Choi, Jae-Il Park, Young-Woo Seo, Sang-Young Chun
The potent androgen 5α-dihydrotestosterone is metabolized to the weak androgen 5α-androstane-3α, 17β-diol (3α-diol) by the enzyme aldo-keto reductase family 1, member C14 (Akr1c14) in rodents. The purpose of the present study was to investigate the regulation of Akr1c14 expression during the ovulatory process in rat ovaries. Northern blot analysis revealed that treatment of immature rats with equine chorionic gonadotropin resulted in lowered Akr1c14 expression, whereas subsequent treatment with human chorionic gonadotropin (hCG) increased ovarian Akr1c14 expression within 3 h...
July 11, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28675921/cycle-regimens-for-frozen-thawed-embryo-transfer
#7
REVIEW
Tarek Ghobara, Tarek A Gelbaya, Reuben Olugbenga Ayeleke
BACKGROUND: Among subfertile couples undergoing assisted reproductive technology (ART), pregnancy rates following frozen-thawed embryo transfer (FET) treatment cycles have historically been found to be lower than following embryo transfer undertaken two to five days following oocyte retrieval. Nevertheless, FET increases the cumulative pregnancy rate, reduces cost, is relatively simple to undertake and can be accomplished in a shorter time period than repeated in vitro fertilisation (IVF) or intracytoplasmic sperm injection (ICSI) cycles with fresh embryo transfer...
July 5, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28651331/il-1%C3%AE-up-regulates-star-and-progesterone-production-through-the-erk1-2-and-p38-mediated-creb-signaling-pathways-in-human-granulosa-lutein-cells
#8
Xuan Dang, Qinling Zhu, Yaqiong He, Yuan Wang, Yao Lu, Xiaoxue Li, Jia Qi, Hasiximuke Wu, Yun Sun
The pro-inflammatory cytokine interleukin-1β (IL-1β) may be involved in several ovulation-associated events, such as proteases synthesis, prostaglandin production and steroidogenesis in granulosa cells. However, the exact effect of IL-1β on progesterone synthesis in granulosa cells and the underlying mechanism remain unclear. By using cultured granulosa-lutein cells collected from women undergoing in vitro fertilization or intracytoplasmic sperm injection, we found that IL-1β up-regulated steroidogenic acute regulatory protein (StAR) expression and progesterone synthesis in granulosa-lutein cells, which was comparable with luteinizing hormone (LH) effect and could be abolished by an IL-1 receptor antagonist...
June 23, 2017: Endocrinology
https://www.readbyqxmd.com/read/28645863/toxicology-of-octamethylcyclotetrasiloxane-d4
#9
Allison Franzen, Tracy Greene, Cynthia Van Landingham, Robinan Gentry
Octamethylcyclotetrasiloxane (D4) is a volatile cyclic siloxane used primarily as a monomer or intermediate in the production of some silicon-based polymers widely used in industrial and consumer applications and may be present as a residual impurity in a variety of consumer products. A robust toxicological data set exists for D4. Treatment-related results from a chronic inhalation study conducted in rats are limited to mild effects on the respiratory tract, increases in liver weight, increases in the incidence of uterine endometrial epithelial hyperplasia, and a dose-related trend in the incidence of endometrial adenomas...
June 20, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28643569/iron-overload-directly-affecting-the-ovaries-in-a-patient-with-diamond-blackfan-anaemia-a-case-report
#10
Mariano Mascarenhas, Victoria Rawnsley, Adam Balen
Iron is a 'one-way' element and the primary point of regulation of body iron stores is at the level of intestinal iron absorption. Repeated blood transfusions for congenital anaemias bypass this regulatory checkpoint and inevitably lead to iron overload in the long-term. Iron overload causes multi-organ dysfunction of the heart, liver, pancreas and joints. It also causes reproductive toxicity primarily through its damaging effect on the anterior pituitary leading to hypogonadotrophic hypogonadism. Another less understood mechanism of reproductive toxicity is direct gonadal damage of excess free iron...
June 23, 2017: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/28643088/potential-therapeutic-applications-of-human-anti-m%C3%A3-llerian-hormone-amh-analogues-in-reproductive-medicine
#11
REVIEW
Vitaly A Kushnir, David B Seifer, David H Barad, Aritro Sen, Norbert Gleicher
Members of the transforming growth factor-beta (TGF-beta) superfamily are key regulators of various physiological processes. Anti-Müllerian hormone (AMH) which is also commonly known as Müllerian-inhibiting substance (MIS) is a member of the TGF-beta superfamily and an important regulator of reproductive organ differentiation and ovarian follicular development. While AMH has been used for diagnostic purposes as a biomarker for over 15 years, new potential therapeutic applications of recombinant human AMH analogues are now emerging as pharmacologic agents in reproductive medicine...
June 22, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28630466/comparative-effectiveness-of-9-ovulation-induction-therapies-in-patients-with-clomiphene-citrate-resistant-polycystic-ovary-syndrome-a-network-meta-analysis
#12
Yiping Yu, Lanlan Fang, Ruizhe Zhang, Jingyan He, Yujing Xiong, Xiaoyi Guo, Qingyun Du, Yan Huang, Yingpu Sun
The comparative efficacies of ovulation-induction treatments in patients with clomiphene citrate-resistant (CCR) polycystic ovary syndrome (PCOS) are not well known. Therefore, we conducted a network meta-analysis to rank the reproductive efficacies of these treatments. We ultimately included 26 randomized clinical trials with 2722 participants and 9 types of therapies: clomiphene citrate (CC), metformin, letrozole, follicle stimulating hormone (FSH), human menopausal gonadotropin (hMG), unilateral laparoscopic ovarian drilling (ULOD), bilateral laparoscopic ovarian drilling (BLOD), the combination of metformin with letrozole (metformin+letrozole), and the combination of metformin with CC (metformin+CC)...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28615049/a-case-of-acute-sheehan-s-syndrome-and-literature-review-a-rare-but-life-threatening-complication-of-postpartum-hemorrhage
#13
Shinya Matsuzaki, Masayuki Endo, Yutaka Ueda, Kazuya Mimura, Aiko Kakigano, Tomomi Egawa-Takata, Keiichi Kumasawa, Kiyoshi Yoshino, Tadashi Kimura
BACKGROUND: Sheehan's syndrome occurs because of severe postpartum hemorrhage causing ischemic pituitary necrosis. Sheehan's syndrome is a well-known condition that is generally diagnosed several years postpartum. However, acute Sheehan's syndrome is rare, and clinicians have little exposure to it. It can be life-threatening. There have been no reviews of acute Sheehan's syndrome and no reports of successful pregnancies after acute Sheehan's syndrome. We present such a case, and to understand this rare condition, we have reviewed and discussed the literature pertaining to it...
June 14, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28609806/what-do-infertile-women-think-about-oocyte-reception-oocyte-donation-and-child-adoption
#14
Juliana Straehl, Lúcia Alves da Silva Lara, Marcos Felipe Silva de Sá, Rosana Maria Reis, Ana Carolina Japur de Sá Rosa-E-Silva
Purpose The views of infertile couples regarding oocyte donation by third parties and adoption are unknown, as these may be interpreted as a final closure of the available options for conception. This study aimed to determine the acceptance of oocyte donation, oocyte reception, and child adoption of infertile women who submitted to assisted reproductive technology (ART) treatment Methods Sixty-nine women who were under treatment for infertility and submitted to ART procedures were included in this cross-sectional study...
June 2017: Revista Brasileira de Ginecologia e Obstetrícia
https://www.readbyqxmd.com/read/28609269/corifollitropin-alfa-compared-to-daily-rfsh-or-hp-hmg-in-gnrh-antagonist-controlled-ovarian-stimulation-protocol-for-patients-undergoing-assisted-reproduction
#15
Priscila Morais Galvão Souza, Bruno Ramalho de Carvalho, Hitomi Miura Nakagawa, Thalita Reis Esselin Rassi, Antônio César Paes Barbosa, Adelino Amaral Silva
OBJECTIVE: This study aimed to compare the outcomes of controlled ovarian stimulation (COS) with corifollitropin alfa versus daily recombinant follicle-stimulating hormone (rRFSH) or highly purified human menopausal gonadotropin (HP-HMG) in patients undergoing in vitro fertilization (IVF) cycles based on gonadotropin-releasing hormone (GnRH) antagonist protocols. The primary endpoints were total number of oocytes and mature oocytes. METHODS: This retrospective study looked into 132 controlled ovarian stimulation cycles from IVF or oocyte cryopreservation performed in a private human reproduction center between January 1 and December 31, 2014...
June 1, 2017: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/28598116/-optimal-ovulation-induction-in-polycystic-ovary-syndrome-resistant-to-clomiphene-citrate-or-letrozole
#16
Ying Chen, Dan Zhang
OBJECTIVES: To investigate the optimal ovulation induction with the combination of combining letrozole(LE),clomiphene citrate (CC),and human menopausal gonadotropin (HMG) in polycystic ovary syndrome(PCOS) patients resistant to CC or LE. METHODS: Two hundreds nine PCOS patients (209 cycles) resistant to CC or LE were randomly divided into three groups: CC+HMG group (59 cycles),LE+HMG group (72 cycles) and LE+CC group (78 cycles).The patients in LE+CC group unable to form the dominant follicle after 54 cycles were enrolled into LE+CC+HMG group...
November 2016: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28593057/clomiphene-associated-inferior-stemi-in-a-young-female-due-to-right-coronary-artery-dissection
#17
Feras Husain Abuzeyad, Eltigani Seedahmed Ibnaouf, Mudhaffar Al Farras
Nonatherosclerotic spontaneous coronary artery dissection (NA-SCAD) is an uncommon cause of myocardial infarction. It most commonly affects females in the perimenopausal age. NA-SCAD has been associated with many predisposing factors including pregnancy and hormonal therapy for both contraception and ovulation induction. The presented case is a previously healthy 41-year-old woman diagnosed with inferior ST-elevation myocardial infarction due to right descending coronary artery dissection associated with recent use of clomiphene monotherapy for ovulation induction (a previously fertile woman), which was not previously reported...
2017: Case Reports in Emergency Medicine
https://www.readbyqxmd.com/read/28582566/non-classic-congenital-adrenal-hyperplasia-due-to-21-hydroxylase-deficiency-revisited-an-update-with-a-special-focus-on-adolescent-and-adult-women
#18
Enrico Carmina, Didier Dewailly, Héctor F Escobar-Morreale, Fahrettin Kelestimur, Carlos Moran, Sharon Oberfield, Selma F Witchel, Ricardo Azziz
BACKGROUND: Non-classic congenital hyperplasia (NCAH) due to 21-hydroxylase deficiency is a common autosomal recessive disorder characterized by androgen excess. OBJECTIVE AND RATIONALE: We conducted a systematic review and critical assessment of the available evidence pertaining to the epidemiology, pathophysiology, diagnosis and management of NCAH. A meta-analysis of epidemiological data was also performed. SEARCH METHODS: Peer-reviewed studies evaluating NCAH published up to October 2016 were reviewed...
June 5, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28578447/maternal-and-neonatal-outcomes-in-twin-and-triplet-gestations-in-western-saudi-arabia
#19
Samera F AlBasri, Ghadah M Shouib, Osama S Bajouh, Hasan A Nasrat, Ejaz Ahmad, Fahad M AlGreisi
Tocompare maternal and neonatal complications in twin and triplet gestations at King Abdulaziz University Hospital, Jeddah, Saudi Arabia. Methods: Retrospective medical records of 165 women with 144 twin and 21 triplet pregnancies from 2004 to 2011 were analyzed. Comparisons were carried out for maternal complications, gestational age at birth, neonatal birth weight, and neonatal intensive care admission. Results: Most common complications were preterm birth (49%), gestational diabetes mellitus (13.3%), and premature rupture of membrane (4...
June 2017: Saudi Medical Journal
https://www.readbyqxmd.com/read/28578436/gonadotropin-releasing-hormone-agonist-triggering-with-concomitant-administration-of-low-doses-of-human-chorionic-gonadotropin-or-a-freeze-all-strategy-in-high-responders
#20
Meric Karacan, Erkan Erdem, Akin Usta, Ayse Arvas, Ziya Cebi, Teksen Camlibel
To compare the live birth rates and moderate/severe ovarian hyperstimulation syndrome (OHSS) rates of 2 different approaches using gonadotropin-releasing hormone (GnRH) agonist triggering in high responder women. Methods: A retrospective cohort study was performed to evaluate intracytoplasmic sperm injection (ICSI) and embryo transfer (ET) outcomes in high responder women who underwent ovulation induction with a GnRH antagonist protocol between April 2011 and March 2015. In group 1 (n=74), GnRH agonist was used for ovulation triggering with the concomitant use of 1500 IU of urinary human chorionic gonadotropin (hCG) immediately after oocyte retrieval followed by fresh ET and standard luteal support...
June 2017: Saudi Medical Journal
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