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https://www.readbyqxmd.com/read/29453138/increased-coagulation-index-as-measured-by-thromboelastography-during-ovarian-stimulation-for-in-vitro-fertilization-influence-of-the-final-oocyte-maturation-triggering-agent
#1
Ronit Beck-Fruchter, Israel Gavish, Shira Baram, Yoel Geslevich, Amir Weiss
OBJECTIVE: Thromboelastography (TEG) is a viscoelastic test of hemostasis which allows measurement of the processes of clot initiation, propagation, stabilization, and dissolution in real time. In this study we aimed to evaluate the alterations in coagulation as measured by TEG during In Vitro Fertilization (IVF) stimulation cycles and to investigate whether final oocyte maturation with recombinant hCG (rhCG) versus GnRH agonist results in a different coagulation state. STUDY DESIGN: This is a prospective observational study which included fifty-three normogonadotrophic women...
February 10, 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/29435117/replication-of-hepatitis-e-virus-in-the-ovary-and-promotion-of-oocyte-apoptosis-in-rabbits-infected-with-hev-4
#2
Junqing An, Tianlong Liu, Ruiping She, Qiaoxing Wu, Jijing Tian, Ruihan Shi, Wenzhuo Hao, Xinxin Ren, Yue Yang, Yiyao Lu, Yifei Yang, Yuanheng Wu
Hepatitis E virus (HEV) infection can induce infertility and miscarriage in pregnant women and infect neonates through vertical transmission. However, the mechanism of infertility and vertical transmission remains unclear. In the present study, we evaluated the replication of HEV in the ovary and structural and molecular changes induced by HEV after intraperitoneal injection of HEV in rabbits. Positive- and negative-strand HEV RNA was detected in the ovaries at 28 and 49 days post-infection. Positive HEV open reading frames 2 and 3 signals were observed in the ovaries by immunohistochemistry staining...
January 12, 2018: Oncotarget
https://www.readbyqxmd.com/read/29430150/on-the-origins-of-the-semen-analysis-a-close-relationship-with-the-history-of-the-reproductive-medicine
#3
REVIEW
Fernando Tadeu Andrade-Rocha
The spermatozoa were first seen in ejaculates in the 17 th century. However, the basic mechanisms of human fertilization have been only fully understood after the discovery of ovum in 1827. As a result, the interest in developing technologies for semen analysis arose from the early 1900s. Indeed, standard methodologies for semen analysis were designed mostly along the first half of the 20 th century. Before the 1930s, semen analysis was nearly unavailable clinically, since there were still no robust methodologies for assessing sperm characteristics, as well as to set up standard references that could be able to assess the reproductive capacity of men...
October 2017: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/29416828/asymmetrically-enlarged-parietal-foramina-in-a-rare-case-of-goldenhar-syndrome-with-a-possible-etiopathogenesis
#4
Lika'a Fasih Y Al-Kzayer, Shamil Naji Sarsam, Nagham Younus Alhur, Tingting Liu, Yozo Nakazawa
Goldenhar´s syndrome (GS) also known as oculo-auriculo-vertebral spectrum (OAVS) is a relatively rare condition. GS is of multifactorial etiology that includes environmental and/or genetic factors, in addition to teratogens that disturb the blastogenesis. A 5-year-old girl from Saudi Arabia, was a member of dizygotic twins conceived by assisted reproductive technology (ART), and born with features of GS. She had asymmetrical face, cleft lip and palate, right microphthalmia and microtia. Radiological imaging showed right maxillary and mandibular bone hypoplasia, asymmetrically enlarged parietal foramina, a persistent midline occipital foramen, abnormal bone arising from occipital bone, extending along tentorium cerebelli, and a lipoma at the right tentorium cerebelli...
January 5, 2018: Oncotarget
https://www.readbyqxmd.com/read/29383942/the-association-between-trans-fatty-acids-infertility-and-fetal-life-a-review
#5
Hande Çekici, Yasemin Akdevelioğlu
Trans fatty acids (TFAs) are thought to affect reproductive health by causing adverse effects on sperm morphology and ovum quality as a result of changing membrane lipid composition which, in turn, leads to impairment in metabolic pathways. This literature review examines the evidence for the effects of dietary TFAs on male and female infertility. Studies conducted between 2007 and 2017 on the effect of dietary TFAs on human reproductive health and fetal life have been included. They indicate that TFA intakes are inversely proportional to sperm concentration and total sperm count and exhibit a positive correlation with asthenospermia, as well as an adverse association on sperm concentration and semen quality...
January 31, 2018: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/29338139/occurrence-of-ovarian-follicular-dominance-during-stimulation-for-ivm-impacts-usable-blastocyst-yield
#6
Sergio Romero, Ricardo Pella, Francisco Escudero, Ygor Pérez, Mario García, Patricia Orihuela
OBJECTIVE: To evaluate the influence of ovarian follicular dominance on the outcome of oocyte in-vitro maturation. METHODS: This retrospective cohort study included 21 patients with polycystic ovaries or polycystic ovary syndrome (Rotterdam criteria, 2004) subjected to 24 in-vitro maturation (IVM) cycles between October 2015 and January 2017. Patients undergoing IVM received minimal gonadotropin stimulation starting on day 2 or 3 of the cycle; ovum pick-up typically occurred on days 6 to 8...
January 17, 2018: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/29332425/dermatological-manifestations-in-patients-undergoing-in-vitro-fertilisation-a-prospective-study
#7
Aradhana Sood, Suvash Sahu, Sandeep Karunakaran, Rajneesh K Joshi, Deep Kumar Raman
BACKGROUND: Changing sociodemographic patterns with an increase in the age of childbirth have affected fertility rates worldwide. With advancing reproductive medicine, assisted reproductive techniques (ARTs) are becoming common. While dermatological manifestations in normal pregnancies have been well documented, there is a paucity of data regarding cutaneous manifestations in patients undergoing ART. OBJECTIVES: The objectives of our study were to estimate the incidence and types of dermatological manifestations in patients undergoing in vitro fertilisation (IVF) and to study their associations with age, type of infertility, and outcome of the procedure...
January 1, 2018: Journal of Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/29322719/life-threatening-medical-complications-due-to-ovarian-hyperstimulation-syndrome-a-hidden-etiology
#8
Prerana N Bhavsar, Namita J Padwal, Madhura Bhide, Santosh P Ghagare, Anagha R Joshi, Niteen D Karnik
Ovarian hyperstimulation syndrome is usually an iatrogenic complication in women taking ovulation induction medications during assisted reproduction. We hereby report the case of a 25 years old female who presented with hypertension, polyserositis with tense ascites and large cystic ovaries. She developed sigmoid and transverse sinus thrombosis. She had undergone a clandestine ovulation induction therapy as a commercial ovum donor. She fitted in severe category of ovarian hyperstimulation syndrome.
November 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/29318466/combined-or-individual-effects-of-dietary-probiotic-pediococcus-acidilactici-and-nucleotide-on-reproductive-performance-in-goldfish-carassius-auratus
#9
Nooshin Mehdinejad, Mohammad Reza Imanpour, Valiollah Jafari
This work evaluated the effect of dietary supplementation of probiotic, Pediococcus acidilactici and nucleotide (combined or individual) on reproductive performance including semen quality (motility and density) and egg indices (egg diameter, ovum diameter, absolute fecundity, relative fecundity, gonadosomatic index, hepatosomatic index, fertilization rate, and hatching rate) in goldfish (Carassius auratus). Fish (46.9 ± 2.15 g) were acclimatized and divided into eight experimental diets supplemented with P...
January 9, 2018: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/29316440/putting-your-best-egg-forward
#10
Christopher K Patil, Vladimir Denic
In a recent issue of Nature, Bohnert and Kenyon (2017) describe a signaling pathway that prevents transgenerational inheritance of cytoplasmic protein aggregates. Fertilizing sperm trigger aggregate clearance in the ovum by a microautophagy-like effector mechanism mediated by inter-organelle communication between lysosomes and mitochondria.
January 8, 2018: Developmental Cell
https://www.readbyqxmd.com/read/29273062/enhanced-expressions-of-neurodegeneration-associated-factors-ups-impairment-and-excess-a%C3%AE-accumulation-in-the-hippocampus-of-mice-with-persistent-cerebral-toxocariasis
#11
Chia-Mei Chou, Yueh-Lun Lee, Chien-Wei Liao, Ying-Chieh Huang, Chia-Kwung Fan
BACKGROUND: Toxocariasis is a worldwide zoonotic parasitic disease mainly caused by Toxocara canis. Humans can be infected by accidental ingestion of T. canis embryonated ovum-contaminated food, water, or encapsulated larvae in paratenic hosts' viscera or meat. Since humans and mice are paratenic hosts of T. canis, the wandering larvae might cause mechanical tissue damage and excretory-secretory antigens may trigger inflammatory injuries to local organs. Long-term residence of T. canis larvae in a paratenic host's brain may cause cerebral toxocariasis (CT) that contributes to cerebral damage, neuroinflammation and neuropsychiatric disorders in mice and clinical patients...
December 22, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29259492/intra-follicular-kisspeptin-levels-are-related-to-oocyte-maturation-and-gonadal-hormones-in-patients-who-are-undergoing-assisted-reproductive-technology
#12
Yuka Taniguchi, Akira Kuwahara, Ayaka Tachibana, Yuya Yano, Kiyohito Yano, Yuri Yamamoto, Mikio Yamasaki, Takeshi Iwasa, Kenji Hinokio, Toshiya Matsuzaki, Minoru Irahara
Purpose: To assess the kisspeptin concentrations in follicular fluid and their relationship with clinical outcomes during assisted reproductive technology. Methods: Thirty-nine patients who were aged 24-40 years and underwent oocyte retrieval for in vitro fertilization/intracytoplasmic sperm injection participated in this study. In 65 follicular fluid samples that had been obtained from 30 patients and their blood samples, the kisspeptin levels were measured in order to investigate the correlations with their gonadal hormone levels...
October 2017: Reproductive Medicine and Biology
https://www.readbyqxmd.com/read/29244804/conditional-knockout-mice-for-the-distal-appendage-protein-cep164-reveal-its-essential-roles-in-airway-multiciliated-cell-differentiation
#13
Saul S Siller, Himanshu Sharma, Shuai Li, June Yang, Yong Zhang, Michael J Holtzman, Wipawee Winuthayanon, Holly Colognato, Bernadette C Holdener, Feng-Qian Li, Ken-Ichi Takemaru
Multiciliated cells of the airways, brain ventricles, and female reproductive tract provide the motive force for mucociliary clearance, cerebrospinal fluid circulation, and ovum transport. Despite their clear importance to human biology and health, the molecular mechanisms underlying multiciliated cell differentiation are poorly understood. Prior studies implicate the distal appendage/transition fiber protein CEP164 as a central regulator of primary ciliogenesis; however, its role in multiciliogenesis remains unknown...
December 15, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/29211889/reduced-live-birth-rates-after-ivf-icsi-in-women-with-previous-unilateral-oophorectomy-results-of-a-multicentre-cohort-study
#14
Tekla Lind, Jan Holte, Jan I Olofsson, Nermin Hadziosmanovic, Johannes Gudmundsson, Elizabeth Nedstrand, Mikael Lood, Lars Berglund, Kenny Rodriguez-Wallberg
STUDY QUESTION: Is there a reduced live-birth rate (LBR) after IVF/ICSI treatment in women with a previous unilateral oophorectomy (UO)? SUMMARY ANSWER: A significantly reduced LBR after IVF/ICSI was found in women with previous UO when compared with women with intact ovaries in this large multicentre cohort, both crudely and after adjustment for age, BMI, fertility centre and calendar period and regardless of whether the analysis was based on transfer of embryos in the fresh cycle only or on cumulative results including transfers using frozen-thawed embryos...
December 4, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29198975/improvement-of-bovine-in%C3%A2-vitro-embryo-production-by-ovarian-follicular-wave-synchronization-prior-to-ovum-pick-up
#15
F L B Cavalieri, F Morotti, M M Seneda, A H B Colombo, M A Andreazzi, I P Emanuelli, L P Rigolon
This study evaluated the effects of the synchronization of ovarian follicular wave emergence on the efficiency of in vitro embryo production. Bos indicus cows (n = 20) were divided into two groups (control vs. synchronization) and subjected to repeated ovum pick-up (OPU) sessions (8 replicates each, with an interval of 21 days in a 2 × 2 crossover design) and subsequent in vitro embryo production. Cows in the control group (n = 10) were submitted to OPU procedures without any stimulation every 21 days...
November 26, 2017: Theriogenology
https://www.readbyqxmd.com/read/29177245/controlled-ovarian-stimulation-with-r-fsh-plus-r-lh-vs-hmg-plus-r-fsh-in-patients-candidate-for-ivf-icsi-cycles-an-rct
#16
Ensieh Shahrokh Tehraninejad, Mina Farshbaf Taghinejad, Batool Hossein Rashidi, Fedyeh Haghollahi
Background: Different combination of gonadotropin preparation has been introduced with no definite superiority of one over others in in vitro fertilization (IVF), but individualized regimens for each patient are needed. Objective: The aim of the present study was to investigate the effect of controlled ovarian stimulation with recombinant- follicle stimulating hormone (r-FSH) plus recombinant-luteinizing hormone (rLH) versus human menopausal gonadotropin (HMG) plus r-FSH on fertility outcomes in IVF patients...
July 2017: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/29153167/a-100-year-review-reproductive-technologies-in-dairy-science
#17
S G Moore, J F Hasler
Reproductive technology revolutionized dairy production during the past century. Artificial insemination was first successfully applied to cattle in the early 1900s. The next major developments involved semen extenders, invention of the electroejaculator, progeny testing, addition of antibiotics to semen during the 1930s and 1940s, and the major discovery of sperm cryopreservation with glycerol in 1949. The 1950s and 1960s were particularly productive with the development of protocols for the superovulation of cattle with both pregnant mare serum gonadotrophin/equine chorionic gonadotrophin and FSH, the first successful bovine embryo transfer, the discovery of sperm capacitation, the birth of rabbits after in vitro fertilization, and the development of insulated liquid nitrogen tanks...
December 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29134715/relationship-between-follicular-volume-and-oocyte-competence-blastocyst-development-and-live-birth-rate-optimal-follicle-size-for-oocyte-retrieval
#18
Barbara Wirleitner, Jasmin Okhowat, Lucie Vištejnová, Milena Králíčková, Marie Karlíková, Pierre Vanderzwalmen, Fabien Ectors, Libor Hradecký, Maximilian Schuff, Maximilian Murtinger
OBJECTIVES: To analyse the oocyte competence in GnRHa stimulation cycles with regard to maturity, fertilization and blastocyst rate and clinical outcome (pregnancy and live birth rate) in correlation to follicular volume measured by 3D sonography and follicular fluid composition. METHODS: This was a prospective single-centre study conducted in the period June 2012 - June 2014 including 118 ovum pick-ups (OPUs) with subsequent embryo transfers (ET). Out of 1,493 aspirated follicles we analysed 1,236 follicles and traced oocytes grouped according to follicular volume...
November 14, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29132036/holding-immature-bovine-oocytes-in-a-commercial-embryo-holding-medium-high-developmental-competence-for-up-to-10%C3%A2-h-at-room-temperature
#19
Osvaldo Bogado Pascottini, Maaike Catteeuw, Ann Van Soom, Geert Opsomer
Bovine in vitro embryo production (IVP) following Ovum Pick Up (OPU) is all too often hampered by a large time gap between the harvest of oocytes of the first and last OPU session of the day. Immediately after retrieval, oocyte maturation is initiated, resulting in oocytes maturing at different time points which necessitates laborious scheduling of the IVP process. In this study, the potential of a commercial embryo holding medium (EHM; Syngro, Bioniche Inc.) to hold immature bovine oocytes was validated. We assessed the effect of holding time and temperature on (1) oocytes' maturation; (2) blastocyst development and quality at day 8 post insemination; and (3) blastocyst yield in small groups of oocytes/zygotes simulating OPU settings...
November 4, 2017: Theriogenology
https://www.readbyqxmd.com/read/29131658/measuring-male-to-male-differences-in-fertility-or-effects-of-semen-treatments
#20
Rupert P Amann, Richard G Saacke, Guy F Barbato, Dagmar Waberski
Fertility is a convenient but meaningless term unless the outcome measure is stipulated and accounts for dependence of male fertility on the female population. We describe outcome measures and detail the impacts of the physiological status of each female and her external environment, as well as management imposed by humans. We explain the dominant role of the female reproductive tract as a series of hurdles for sperm seeking an ovum. Each spermatozoon in an ejaculate is unique, although usually most are morphologically similar...
November 13, 2017: Annual Review of Animal Biosciences
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