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https://www.readbyqxmd.com/read/28214572/clinical-relevance-of-oxidation-reduction-potential-in-the-evaluation-of-male-infertility
#1
Ashok Agarwal, Siew May Wang
Objectives To evaluate 1) the relationship between oxidation-reduction potential (ORP) and abnormal sperm quality, 2) changes in ORP and sperm parameters over time, in search of a potential surrogate marker of poor sperm quality that may assist in the diagnosis of oxidative stress- related male infertility. Methods 194 infertile men were included and 28 patients were identified to have repeated semen analyses and ORP measurements. The semen samples obtained were categorized into normal and abnormal sperm parameters based on the World Health Organization (WHO) 5(th) edition guidelines...
February 15, 2017: Urology
https://www.readbyqxmd.com/read/28213128/quantitative-proteomic-analysis-of-human-testis-reveals-system-wide-molecular-and-cellular-pathways-associated-with-non-obstructive-azoospermia
#2
Mehdi Alikhani, Mehdi Mirzaei, Marjan Sabbaghian, Pouria Parsamatin, Razieh Karamzadeh, Samane Adib, Niloofar Sodeifi, Mohammad Ali Sadighi Gilani, Masoud Zabet-Moghaddam, Lindsay Parker, Yunqi Wo, Vivek Gupta, Paul A Haynes, Hamid Gourabi, Hossein Baharvand, Ghasem Hosseini Salekdeh
: Male infertility accounts for half of the infertility problems experienced by couples. Azoospermia, having no measurable level of sperm in seminal fluid, is one of the known conditions resulting in male infertility. In order to elucidate the complex molecular mechanisms causing male azoospermia, label-free quantitative shotgun proteomics was carried out on testicular tissue specimens from patients with obstructive azoospermia and non-obstructive azoospermia, including maturation arrest (MA) and Sertoli cell only syndrome (SCOS)...
February 14, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28212593/micrornas-and-endometriosis-distinguishing-drivers-from-passengers-in-disease-pathogenesis
#3
Warren B Nothnick
Endometriosis is a disease common in women of reproductive age, characterized by pelvic pain and infertility. Despite its prevalence, the factors and mechanisms which contribute to the development and survival of ectopic lesions remain uncertain. MicroRNAs (miRNAs) are small RNA molecules that regulate posttranscriptional gene regulation which have been proposed to contribute to the pathogenesis of many diseases including that of endometriosis. This review summarizes the results of initial studies describing differentially expressed miRNAs between endometriotic lesion tissue and eutopic endometrium...
February 17, 2017: Seminars in Reproductive Medicine
https://www.readbyqxmd.com/read/28212592/novel-insights-into-gonadotropin-releasing-hormone-action-in-the-pituitary-gonadotrope
#4
Jessica L Brown, Mark Roberson
The hypothalamic-pituitary-gonadal axis controls reproduction via a series of hormones regulating gonadal function through interconnected feedback loops. Secretion of hypothalamic-derived gonadotropin-releasing hormone (GnRH) integrates inputs from higher brain centers to coordinate the activity of the pituitary gonadotrope and the biosynthesis and secretion of the gonadotropins which ultimately regulate gonadal function. Failure of GnRH to serve as the central integrator of this system has been associated with hypogonadotropic-hypogonadism and clinical infertility, while pharmacological application of GnRH analogs and gonadotropins have important implications of the treatment of such infertility...
February 17, 2017: Seminars in Reproductive Medicine
https://www.readbyqxmd.com/read/28212475/-frequency-of-increased-thyrotropin-in-women-with-hyperprolactinemia
#5
Sebastián Carranza-Lira, María Luisa Daza-Carrasco, Rosario Chán-Verdugo
BACKGROUND: Hypothyroidism has been associated to hyperprolactinemia. The aim was to establish the frequency of high thyrotropin (TSH) levels in women with hyperprolactinemia. METHODS: Retrospective, observational, open, and non-controlled study, which included all the non-pregnant women whose prolactin (PRL) and TSH levels were measured between January 1 and December 31, 2014. RESULTS: 437 women were studied. The most frequent diagnoses that motivated PRL measurement were: infertility (31...
2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28212156/impact-of-very-low-anti-m%C3%A3-llerian-hormone-on-pregnancy-success
#6
Alberto Pacheco, María Cruz, Juan A García-Velasco
PURPOSE OF REVIEW: Biomarkers are useful tool to help clinicians to estimate the chances of pregnancy of an infertile couple prior to assisted reproductive treatment. One proposed candidate is anti-Müllerian hormone (AMH), but its role as a predictor of reproductive success, especially in patients with low or very low levels, is under discussion. This review highlights recent findings from literature regarding to reproductive outcome in women with very low levels of AMH. RECENT FINDINGS: Although there is a general agreement about the lower pregnancy rates of patients with very low levels of AMH compared with patients with normal AMH levels, the role of AMH as a predictor of success is still under discussion...
February 15, 2017: Current Opinion in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28210483/intra-peritoneal-leiomyoma-of-the-round-ligament-in-a-patient-with-mayer-rokitansky-k%C3%A3-ster-hauser-mrkh-syndrome
#7
G Salem Wehbe, R Bitar, T Zreik, M Samaha, C Walter, Z Sleiman
BACKGROUND: The occurrence of an extra-uterine leiomyoma, arising from the intra-peritoneal portion of the round ligament in a lady with Müllerian agenesis diagnosed at the age of forty is extremely rare. We report a case of this rare combination in a Middle Eastern woman. CASE: A 40 years old lady, primarily amenorrheic, presented to our clinic for an infertility consultation. The work- up showed features suggestive of Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome with a leiomyoma arising from the intra-peritoneal part of the round ligament...
December 2016: Facts, Views & Vision in ObGyn
https://www.readbyqxmd.com/read/28210478/the-twin-epidemic-in-infertility-care-why-do-we-persist-in-transferring-too-many-embryos
#8
EDITORIAL
W Ombelet
The epidemic of iatrogenic multiple births as a result of infertility treatment are responsible for an unacceptable high incidence of maternal, perinatal and childhood morbidity and mortality. Healthcare costs due to infertility therapy are too high and this may lead to social and political concern. The introduction of single embryo transfer (SET) was a real breakthrough, but was only accepted in most European countries and Japan. The United States, Latin America and most developing countries still have high multiple pregnancy rates...
December 2016: Facts, Views & Vision in ObGyn
https://www.readbyqxmd.com/read/28208955/high-serum-estradiol-and-heavy-metals-responsible-for-human-spermiation-defect-a-pilot-study
#9
Manish Jain, Amanpreet Kaur Kalsi, Amita Srivastava, Yogendra Kumar Gupta, Ashutosh Halder
INTRODUCTION: Spermiation is a process of releasing sperm into the lumen of seminiferous tubules. Failure in releasing sperm into the lumen is designated as spermiation defect. Spermiation defect cases present as oligo-azoospermia or azoospermia despite normal gonadotropins and testicular histology/cytology. Human spermiation defect never got attention to investigate infertility practice. Most of the information on spermiation defect, so far is from animal experiments. We assume some cases of non-obstructive azoospermia with normal gonadotropins and testicular histology/cytology could be due to spermiation defect...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28208941/anti-mullerian-hormone-a-marker-of-ovarian-reserve-and-its-association-with-polycystic-ovarian-syndrome
#10
Anil Kumar Verma, Sarita Rajbhar, Jyoti Mishra, Mayank Gupta, Mratunjai Sharma, Geeta Deshmukh, Wahid Ali
INTRODUCTION: Anti-Mullerian Hormone (AMH) is a useful endocrine marker for assessing the ovarian reserve. AMH serum level reflects the number of follicles that have made the transition from the primordial pool into the growing follicle pool, and it is not controlled by gonadotropins. AIM: The present study was conducted to correlate serum AMH levels with Polycystic Ovarian Syndrome (PCOS) and type of treatment protocol. MATERIALS AND METHODS: Serum AMH levels were performed in the early follicular phase (on 2(nd) day of menstrual cycle) both in infertile females including PCOS and control women...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28208750/the-consequences-of-chromosome-segregation-errors-in-mitosis-and-meiosis
#11
REVIEW
Tamara Potapova, Gary J Gorbsky
Mistakes during cell division frequently generate changes in chromosome content, producing aneuploid or polyploid progeny cells. Polyploid cells may then undergo abnormal division to generate aneuploid cells. Chromosome segregation errors may also involve fragments of whole chromosomes. A major consequence of segregation defects is change in the relative dosage of products from genes located on the missegregated chromosomes. Abnormal expression of transcriptional regulators can also impact genes on the properly segregated chromosomes...
February 8, 2017: Biology
https://www.readbyqxmd.com/read/28207807/how-much-is-a-child-worth-providers-and-patients-views-and-responses-concerning-ethical-and-policy-challenges-in-paying-for-art
#12
Robert Klitzman
Infertility treatments remain expensive and in many countries are covered by little, if any, insurance, raising critical questions concerning how patients and providers view and make decisions regarding these challenges. In-depth semi-structured interviews of approximately 1 hour were conducted with 37 IVF providers and 10 patients (17 physicians, 10 other providers and 10 patients), and were systematically analyzed. These data suggest current insurance policies and legislation pose critical ethical and logistical challenges for both patients and providers...
2017: PloS One
https://www.readbyqxmd.com/read/28206990/a-familial-study-of-azoospermic-men-identifies-three-novel-causative-mutations-in-three-new-human-azoospermia-genes
#13
Moran Gershoni, Ron Hauser, Leah Yogev, Ofer Lehavi, Foad Azem, Haim Yavetz, Shmuel Pietrokovski, Sandra E Kleiman
PURPOSE: Up to 1% of all men experience azoospermia, a condition of complete absence of sperm in the semen. The mechanisms and genes involved in spermatogenesis are mainly studied in model organisms, and their relevance to humans is unclear because human genetic studies are very scarce. Our objective was to uncover novel human mutations and genes causing azoospermia due to testicular meiotic maturation arrest. METHODS: Affected and unaffected siblings from three families were subjected to whole-exome or whole-genome sequencing, followed by comprehensive bioinformatics analyses to identify mutations suspected to cause azoospermia...
February 16, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/28205525/testicular-activin-and-follistatin-levels-are-elevated-during-the-course-of-experimental-autoimmune-epididymo-orchitis-in-mice
#14
Nour Nicolas, Vera Michel, Sudhanshu Bhushan, Eva Wahle, Susan Hayward, Helen Ludlow, David M de Kretser, Kate L Loveland, Hans-Christian Schuppe, Andreas Meinhardt, Mark P Hedger, Monika Fijak
Experimental autoimmune epididymo-orchitis (EAEO) is a model of chronic inflammation, induced by immunisation with testicular antigens, which reproduces the pathology of some types of human infertility. Activins A and B regulate spermatogenesis and steroidogenesis, but are also pro-inflammatory, pro-fibrotic cytokines. Expression of the activins and their endogenous antagonists, inhibin and follistatin, was examined in murine EAEO. Adult untreated and adjuvant-treated control mice showed no pathology. All mice immunised with testis antigens developed EAEO by 50 days, characterised by loss of germ cells, immune cell infiltration and fibrosis in the testis, similar to biopsies from human inflamed testis...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28205220/comprehensive-genome-profiling-of-single-sperm-cells-by-multiple-annealing-and-looping-based-amplification-cycles-and-next-generation-sequencing-from-carriers-of-robertsonian-translocation
#15
Yanwei Sha, Yankun Sha, Zhiyong Ji, Lu Ding, Qing Zhang, Honggen Ouyang, Shaobin Lin, Xu Wang, Lin Shao, Chong Shi, Ping Li, Yueqiang Song
Robertsonian translocation (RT) is a common cause for male infertility, recurrent pregnancy loss, and birth defects. Studying meiotic recombination in RT-carrier patients helps decipher the mechanism and improve the clinical management of infertility and birth defects caused by RT. Here we present a new method to study spermatogenesis on a single-gamete basis from two RT carriers. By using a combined single-cell whole-genome amplification and sequencing protocol, we comprehensively profiled the chromosomal copy number of 88 single sperms from two RT-carrier patients...
March 2017: Annals of Human Genetics
https://www.readbyqxmd.com/read/28204493/estimating-infertility-prevalence-in-low-to-middle-income-countries-an-application-of-a-current-duration-approach-to-demographic-and-health-survey-data
#16
Chelsea B Polis, Carie M Cox, Özge Tunçalp, Alexander C McLain, Marie E Thoma
No abstract text is available yet for this article.
February 15, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28203451/case-report-a-rare-cause-of-complicated-urinary-tract-infection-in-a-woman-with-herlyn-werner-wunderlich-syndrome
#17
Jun-Li Tsai, Shang-Feng Tsai
INTRODUCTION: Urinary tract infection is a common disease in the general population. However, in patients with frequent urinary tract infection, it is important to determine any treatable cause to avoid recurrence. CASE PRESENTATION: Herlyn-Werner-Wunderlich syndrome or OHVIRA syndrome is a very rare congenital anomaly with uterus didelphys, obstructed hemivagina, and ipsilateral renal agenesis. The earliest presentation of this syndrome is hematocolpos that develops during menstruation and results in dysmenorrhea and a pelvic mass shortly after menarche...
November 2016: Iranian Red Crescent Medical Journal
https://www.readbyqxmd.com/read/28202187/male-factor-infertility-and-lack-of-openness-about-infertility-as-risk-factors-for-depressive-symptoms-in-males-undergoing-assisted-reproductive-technology-treatment%C3%A2-in-italy
#18
Alessandra Babore, Liborio Stuppia, Carmen Trumello, Carla Candelori, Ivana Antonucci
OBJECTIVE: To investigate the association between male factor infertility and openness to discussing assisted reproductive technology (ART) treatment with levels of depression among men undergoing infertility treatment. DESIGN: Cross-sectional. SETTING: Not applicable. PATIENT(S): Three hundred forty participants (170 men and their partners) undergoing ART treatments. INTERVENTION(S): Administration of a set of questionnaires...
February 12, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28202061/in-vitro-generation-of-sertoli-like-and-haploid-spermatid-like-cells-from-human-umbilical-cord-perivascular-cells
#19
Ekaterina Shlush, Leila Maghen, Sonja Swanson, Shlomit Kenigsberg, Sergey Moskovtsev, Tanya Barretto, Andrée Gauthier-Fisher, Clifford L Librach
BACKGROUND: First trimester (FTM) and term human umbilical cord-derived perivascular cells (HUCPVCs), which are rich sources of mesenchymal stem cells (MSCs), can give rise to Sertoli cell (SC)-like as well as haploid germ cell (GC)-like cells in vitro using culture conditions that recapitulate the testicular niche. Gamete-like cells have been produced ex vivo using pluripotent stem cells as well as MSCs. However, the production of functional gametes from human stem cells has yet to be achieved...
February 15, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28199965/whole-exome-sequencing-identified-a-homozygous-brdt-mutation-in-a-patient-with-acephalic-spermatozoa
#20
Lin Li, Yanwei Sha, Xi Wang, Ping Li, Jing Wang, Kehkooi Kee, Binbin Wang
Acephalic spermatozoa is a very rare disorder of male infertility. Here, in a patient from from a consanguineous family, we have identified, by whole-exome sequencing, a homozygous mutation (c.G2783A, p.G928D) in the BRDT gene. The gene product, BRDT, is a testis-specific protein that is considered an important drug target for male contraception. The G928D mutation is in the P-TEFb binding domain, which mediates the interaction with transcription elongation factor and might affect the transcriptional activities of downstream genes...
February 10, 2017: Oncotarget
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