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https://www.readbyqxmd.com/read/28346665/effects-of-ovarian-structures-identified-at-ovsynch%C3%A2-enrolment-disease-history-and-lactation-variables-on-odds-of-pregnancy-to-a-fixed-time-artificial-insemination-after-ovsynch%C3%A2
#1
L Ingenhoff, E Hall, S Ranjbar Ni, J K House
OBJECTIVE: To determine the effects of ovarian structures present at Ovsynch™ enrolment, disease history, lactation variables and times bred on pregnancy per fixed-time artificial insemination (FTAI) following fixed-time insemination after Ovsynch and to determine the relationship between the size of ovarian follicular structures and concurrent presence of a corpus luteum (CL). METHODS: The study was conducted in a 3000-cow Holstein dairy herd. Over a 6-month period, 886 non-pregnant cows were examined by transrectal ultrasound and enrolled into 1132 Ovsynch events...
April 2017: Australian Veterinary Journal
https://www.readbyqxmd.com/read/28344965/tuberculous-peritonitis-in-the-first-trimester-of-pregnancy
#2
Sukyung Jung, Nae Ri Yun, Jeong Ok Kim, Jeong Hoon Lee, Ho Yeon Kim, Eunseop Song, Byoung Ick Lee, Sung Ook Hwang, Soo Ran Choi
Tuberculous peritonitis in pregnancy is a rare form of extrapulmonary tuberculosis that is not easily diagnosed. The clinical presentations of tuberculous peritonitis are usually non-specific and mimic those of other diseases, such as ovarian malignancy or chronic liver disease, and this non-specificity can cause diagnostic delays and complications. The authors report the case of a 31-year-old primigravida woman who presented with uncontrolled fever, dyspnea, elevated liver enzymes, and mild abdominal distension at 13+2 weeks of gestation...
March 2017: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/28343757/clinical-utility-of-newly-developed-highly-purified-human-menopausal-gonadotrophins-a-randomized-controlled-trial
#3
Hwa Seon Koo, Hwang Kwon, Doo Seok Choi, Song Han, Jung Youn Seo, Kwang Moon Yang
The aim of this study was to evaluate the safety and efficacy of IVF-M HP, a newly developed highly purified human menopausal gonadotrophin preparation, for ovarian stimulation in women with infertility undergoing IVF, intracytoplasmic sperm injection (IVF-ICSI) and embryo transfer using a GnRH antagonist protocol. This was a multicentre, randomized, active-controlled, parallel design, open-label, non-inferiority clinical study. Of the 112 patients randomized for treatment using the GnRH antagonist protocol, 111 were treated...
March 1, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28341393/cell-specific-immuno-localization-of-progesterone-receptor-alpha-in-the-rabbit-ovary-during-pregnancy-and-after-parturition
#4
Mahmoud Abd-Elkareem
Progesterone receptor alpha (PRA) has a central coordinator role in the ovarian functions in mammals. The aim of this study was to investigate the immunolocalization of PRA in the rabbit ovary during pregnancy and after parturition. The rabbit ovary during pregnancy and after parturition had moderate cytoplasmic and moderate to intense nuclear PRA immunostaining in the ovarian surface epithelial cells, stromal cells and interstitial gland cells. The PRA was also present in granulosa cells and theca interna cells of the growing, small antral and mature Graafian follicles...
March 18, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28341386/follicular-output-rate-can-predict-clinical-pregnancy-in-women-with-unexplained-infertility-undergoing-ivf-icsi-a-prospective-cohort-study
#5
A Hassan, M Kotb, A AwadAllah, A Wahba, N Shehata
This study aimed to determine whether follicular output rate (FORT) can predict the clinical pregnancy rate in women with unexplained infertility undergoing IVF/ICSI. This was a prospective study conducted at Dar El Teb subfertility centre in Cairo between June 2014 and July 2016. A total of 303 women with unexplained infertility, who were undergoing IVF/ICSI, were divided into three groups according to FORT tertile values. FORT was calculated as pre-ovulatory follicle count/antral follicle count × 100. There was a progressive and significant increase from the low to the high FORT groups in the clinical pregnancy rate (29...
March 16, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28339937/uterine-artery-leptin-receptors-during-the-ovarian-cycle-and-pregnancy-regulate-angiogenesis-in-ovine-uterine-artery-endothelial-cells
#6
Vladimir E Vargas, Rosalina Villalon Landeros, Gladys E Lopez, Jing Zheng, Ronald R Magness
Leptin regulates body weight, reproductive functions, blood pressure, endothelial function, and fetoplacental angiogenesis. Compared to the luteal phase, the follicular phase and pregnancy are physiological states of elevated estrogen, angiogenesis, and uterine blood flow (UBF). Little is known concerning leptin and its receptors (OB-R) for regulating uterine artery (UA) angiogenesis. We : 1) Ex vivo expression of OB-R in UA endothelium (UAendo) and UA vascular smooth muscle (UAvsm) is elevated in pregnant vs...
March 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28339599/a-single-nucleotide-polymorphism-in-coq9-affects-mitochondrial-and-ovarian-function-and-fertility-in-holstein-cows%C3%A2
#7
M Sofia Ortega, Stephanie Wohlgemuth, Paula Tribulo, Luiz G B Siqueira, Daniel J Null, John B Cole, Marcus V Da Silva, Peter J Hansen
A single missense mutation at position 159 of coenzyme Q9 (COQ9) (G→A; rs109301586) has been associated with genetic variation in fertility in Holstein cattle, with the A allele associated with higher fertility. COQ9 is involved in the synthesis of coenzyme COQ10, a component of the electron transport system of the mitochondria. Here we tested whether reproductive phenotype is associated with the mutation and evaluated functional consequences for cellular oxygen metabolism, body weight changes, and ovarian function...
February 3, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28333696/a-universal-freeze-all-strategy-why-it-is-not-warranted
#8
Baris Ata, Emre Seli
PURPOSE OF REVIEW: There's some preclinical evidence of an adverse effect of multifollicular growth on endometrial function in assisted reproductive technology cycles. Universal elective frozen embryo transfer (eFET) in an unstimulated cycle is being promoted as a panacea, regardless of patient, and cycle characteristics. We review the clinical evidence on the effectiveness and safety of eFETs. RECENT FINDINGS: Randomized controlled trials (RCTs) comparing fresh and eFET yield contradictory results in terms of live birth rates...
March 22, 2017: Current Opinion in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28333356/the-safety-and-efficacy-of-controlled-ovarian-hyperstimulation-for-fertility-preservation-in-women-with-early-breast-cancer-a-systematic-review
#9
Rachael J Rodgers, Geoffrey D Reid, Juliette Koch, Rebecca Deans, William L Ledger, Michael Friedlander, Robert B Gilchrist, Kirsty A Walters, Jason A Abbott
STUDY QUESTION: Can controlled ovarian hyperstimulation (COH) for fertility preservation be effectively conducted in women with breast cancer without worsening their prognosis? SUMMARY ANSWER: COH with co-administration of letrozole suppresses oestradiol levels without significantly impacting oocyte yield or decreasing disease-free survival rates. WHAT IS KNOWN ALREADY: Oestradiol has the capacity to stimulate the proliferation of breast cancer cells...
February 27, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333275/anti-m%C3%A3-llerian-hormone-inhibits-activation-and-growth-of-bovine-ovarian-follicles-in-vitro-and-is-localized-to-growing-follicles
#10
M Y Yang, R A Cushman, J E Fortune
STUDY QUESTION: Does anti-Müllerian hormone (AMH) inhibit activation (initiation of growth) of primordial follicles and attenuate the growth of primary follicles in cattle, an excellent animal model for human ovarian follicular development? SUMMARY ANSWER: AMH inhibited activation of bovine primordial follicles and attenuated the growth of activated follicles in vitro. WHAT IS KNOWN ALREADY: In mice null mutant for AMH, the pool of primordial follicles is depleted prematurely and AMH inhibits follicle activation in vitro...
March 17, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28333271/impact-of-thyroid-autoimmunity-in-euthyroid-women-on-live-birth-rate-after-iui
#11
D Unuane, B Velkeniers, B Bravenboer, P Drakopoulos, H Tournaye, J Parra, M De Brucker
STUDY QUESTION: Does thyroid autoimmunity (TAI) predict live birth rate in euthyroid women after one treatment cycle in IUI patients? SUMMARY ANSWER: TAI as such does not influence pregnancy outcome after IUI treatment. WHAT IS KNOWN ALREADY: The role of TAI on pregnancy outcome in the case of IVF/ICSI is largely debated in the literature. This is the first study to address this issue in the case of IUI. STUDY DESIGN, SIZE, DURATION: This was a retrospective cohort study...
February 23, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333265/improving-oocyte-quality-by-transfer-of-autologous-mitochondria-from-fully-grown-oocytes
#12
Stine Gry Kristensen, Susanne Elisabeth Pors, Claus Yding Andersen
Older women are often the most challenging group of patients in fertility clinics due to a decline in both number and overall quality of oocytes. The quality of oocytes has been linked to mitochondrial dysfunction. In this mini-review, we discuss this hypothesis and suggest alternative treatment options using autologous mitochondria to potentially augment pregnancy potential in ART. Autologous transfer of mitochondria from the patient's own germline cells has attracted much attention as a possible new treatment to revitalize deficient oocytes...
March 2, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333228/efficacy-of-ovarian-tissue-cryopreservation-for-fertility-preservation-lessons-learned-from-545-cases
#13
P Jadoul, A Guilmain, J Squifflet, M Luyckx, R Votino, C Wyns, M M Dolmans
STUDY QUESTION: How effective is ovarian tissue cryopreservation (OTC)? SUMMARY ANSWER: In our cohort of patients who underwent OTC, premature ovarian failure (POF) rates, return rates and pregnancy rates after autotransplantation were 31.5, 4.4 and 33%, respectively. WHAT IS KNOWN ALREADY: OTC for fertility purposes has been performed for >20 years now. With over 86 live births reported worldwide and success rates of ~30% after autotransplantation of frozen-thawed ovarian cortex, the procedure should no longer be considered experimental...
March 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333222/ivf-or-iui-as-first-line-treatment-in-unexplained-subfertility-the-conundrum-of-treatment-selection-markers
#14
R I Tjon-Kon-Fat, P Tajik, M H Zafarmand, A J Bensdorp, P M M Bossuyt, G J E Oosterhuis, R van Golde, S Repping, M D A Lambers, E Slappendel, D Perquin, M J Pelinck, J Gianotten, J W M Maas, M J C Eijkemans, F van der Veen, B W Mol, M van Wely
STUDY QUESTION: Are there treatment selection markers that could aid in identifying couples, with unexplained or mild male subfertility, who would have better chances of a healthy child with IVF with single embryo transfer (IVF-SET) than with IUI with ovarian stimulation (IUI-OS)? SUMMARY ANSWER: We did not find any treatment selection markers that were associated with better chances of a healthy child with IVF-SET instead of IUI-OS in couples with unexplained or mild male subfertility...
February 24, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333207/endometrial-thickness-in-women-undergoing-iui-with-ovarian-stimulation-how-thick-is-too-thin-a-systematic-review-and-meta-analysis
#15
N S Weiss, M N van Vliet, J Limpens, P G A Hompes, C B Lambalk, M H Mochtar, F van der Veen, B W J Mol, M van Wely
STUDY QUESTION: Is pre-ovulatory endometrial thickness (EMT) in women with unexplained subfertility undergoing IUI with ovarian stimulation (OS) associated with pregnancy chances? SUMMARY ANSWER: We found no evidence for an association between EMT and pregnancy chances. WHAT IS KNOWN ALREADY: It has been suggested that OS with clomiphene citrate (CC) results in a lower EMT than with gonadotrophins or aromatase inhibitors, but the clinical consequences in terms of pregnancy are unclear...
February 23, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333185/randomized-open-trial-comparing-a-modified-double-lumen-needle-follicular-flushing-system-with-a-single-lumen-aspiration-needle-in-ivf-patients-with-poor-ovarian-response
#16
Kyra von Horn, Marion Depenbusch, Askan Schultze-Mosgau, Georg Griesinger
STUDY QUESTION: Is a modified double-lumen aspiration needle system with follicular flushing able to increase the mean oocyte yield by at least one in poor response IVF patients as compared to single-lumen needle aspiration without flushing? SUMMARY ANSWER: Follicular flushing with the modified flushing system did not increase the number of oocytes, but increased the procedure duration. WHAT IS KNOWN ALREADY: Most studies on follicular flushing were performed with conventional double-lumen needles in patients who were normal responders...
February 9, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28333033/freeze-all-cycle-in-reproductive-medicine-current-perspectives
#17
Matheus Roque, Marcello Valle, Alessandra Kostolias, Marcos Sampaio, Selmo Geber
The freeze-all strategy has emerged as an alternative to fresh embryo transfer (ET) during in vitro fertilization (IVF) cycles. Although fresh ET is the norm during assisted reproductive therapies (ART), there are many concerns about the possible adverse effects of controlled ovarian stimulation (COS) over the endometrium. The supra-physiologic hormonal levels that occur during a conventional COS are associated with modifications in the peri-implantation endometrium, which may be related to a decrease in pregnancy rates and poorer obstetric and perinatal outcomes when comparing fresh to frozen-thawed embryo transfers...
February 1, 2017: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/28333025/high-progesterone-levels-in-the-beginning-of-icsi-antagonist-cycles-and-clinical-pregnancy-still-a-concern
#18
Tatiana R Panaino, Joyce B da Silva, Maria Augusta T de Lima, Paloma Lira, Patricia C Arêas, Ana Cristina A Mancebo, Marcelo M de Souza, Roberto A Antunes, Maria do Carmo B de Souza
OBJECTIVE: In controlled ovarian hyperstimulation (COH) using antagonist cycles, an incomplete luteolysis could happen after an inefficient previous luteolysis. Since antagonist cycles are frequent today, this study aims to access the impact of serum progesterone in the beginning and at the end of stimulation, and pregnancy outcomes. METHODS: single-center cohort study, 461 fresh embryo transfers in ICSI antagonist cycles. Serum progesterone levels was measured in the beginning of COH (P4i) and on hCG day (P4f) using threshold values of 1...
February 1, 2017: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/28332107/mechanisms-driving-gender-differences-in-asthma
#19
REVIEW
Hubaida Fuseini, Dawn C Newcomb
PURPOSE OF REVIEW: Many phenotypes of asthma exist, ranging from mild asthma with onset during childhood to severe asthma with later onset, making asthma a broad disease with different pathologies. A gender disparity exists in asthma prevalence. As adults, women have an increased asthma prevalence compared to men. Further, women are more likely to have severe asthma and a later onset of asthma compared to men. Here, we review clinical and animal studies that have defined the role of sex hormones in airway inflammation, smooth muscle contraction, mucus production, and airway mechanics associated with asthma pathogenesis...
March 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28331195/galactose-and-its-metabolites-deteriorate-metaphase-ii-mouse-oocyte-quality-and-subsequent-embryo-development-by-disrupting-the-spindle-structure
#20
Mili Thakur, Faten Shaeib, Sana N Khan, Hamid-Reza Kohan-Ghadr, Roohi Jeelani, Sarah R Aldhaheri, Bernard Gonik, Husam M Abu-Soud
Premature ovarian insufficiency (POI) is a frequent long-term complication of classic galactosemia. The majority of women with this disorder develop POI, however rare spontaneous pregnancies have been reported. Here, we evaluate the effect of D-galactose and its metabolites, galactitol and galactose 1-phosphate, on oocyte quality as well as embryo development to elucidate the mechanism through which these compounds mediate oocyte deterioration. Metaphase II mouse oocytes (n = 240), with and without cumulus cells (CCs), were exposed for 4 hours to D-galactose (2 μM), galactitol (11 μM) and galactose 1-phosphate (0...
March 22, 2017: Scientific Reports
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