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https://www.readbyqxmd.com/read/28732188/adapted-methods-for-scanning-electron-microscopy-in-assessment-of-human-sperm-morphology
#1
Petra Nussdorfer, Ines Cilenšek, Branko Zorn, Daniel Petrovič
Infertility is a widespread problem, and in some cases, the routine basic semen analysis is not sufficient to detect the cause of male infertility. The use of the scanning electron microscope (SEM) could provide a detailed insight into spermatozoa morphology, but it requires specific sample preparation techniques. The purpose of this study was to select, adjust, and optimize a method for the preparation of spermatozoa samples prior to SEM analysis, and to establish the protocol required for its use in clinical practice...
July 21, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28731586/pregnancy-in-women-with-non-classic-congenital-adrenal-hyperplasia-time-to-conceive-and-outcome
#2
Ori Eyal, Irit Ayalon-Dangur, Anat Segev-Becker, Anita Schachter-Davidov, Shoshana Israel, Naomi Weintrob
OBJECTIVE: Non-classic congenital adrenal hyperplasia (NCAH) is common among Ashkenazi Jews (1:400). It is associated with various degrees of postnatal virilization, irregular menses and infertility. Therapy of symptomatic subjects consists of physiologic doses of glucocorticoids. The objective of this study was to evaluate the effect of glucocorticoid treatment on fertility and on pregnancy outcome in women with NCAH. DESIGN, SETTING AND PATIENTS: This retrospective study included 75 women diagnosed with NCAH who were followed in our clinic and sought fertility between 2008 and 2015...
July 21, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28731465/pr-set7-deficiency-limits-uterine-epithelial-population-growth-hampering-postnatal-gland-formation-in-mice
#3
Tongtong Cui, Bo He, Shuangbo Kong, Chan Zhou, Hangxiao Zhang, Zhangli Ni, Haili Bao, Jingtao Qiu, Qiliang Xin, Danny Reinberg, John P Lydon, Jinhua Lu, Haibin Wang
Formation of secretary endometrial glands in the uterus known as adenogenesis is a typical process of branching morphogenesis involving dynamic epithelial growth and differentiation. Unsuccessful adenogenesis often leads to female infertility. However, it remains largely unexplored so far regarding the epigenetic machinery governing normal endometrial gland formation. Here, we demonstrated that PR-Set7, an epigenetic regulator for H4K20me1 modification, was extensively expressed in the postnatal uteri, and its conditional deletion resulted in a complete lack of endometrial glands and infertility in mice...
July 21, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28730893/multicenter-study-of-genetic-abnormalities-associated-with-severe-oligospermia-and-non-obstructive-azoospermia
#4
Chong Xie, Xiangfeng Chen, Yulin Liu, Zhengmu Wu, Ping Ping
Objective * Chong Xie, Xiangfeng Chen, and Yulin Liu contributed equally to this work. Genetic defects are identified in nearly 20% of infertile males. Determining the frequency and types of major genetic abnormalities in severe male infertility helps inform appropriate genetic counseling before assisted reproductive techniques. Methods Cytogenetic results of 912 patients with non-obstructive azoospermia (NOA) and severe oligozoospermia (SOS) in Eastern China were reviewed in this multicenter study from January 2011 to December 2015...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28729781/advanced-hysteroscopic-surgery-quality-assurance-in-teaching-hospitals
#5
REVIEW
Mark M S Erian, Glenda R McLaren, Anna-Marie Erian
Advanced hysteroscopic surgery (AHS) is a vitally important technique in the armamentarium for the management of many day-to-day clinical problems, such as menorrhagia, surgical excision of uterine myomata and septa in the management of female infertility, hysteroscopic excision of chronically retained products of conception (placenta accreta), and surgical removal of intramural ectopic pregnancy. In today's climate of accountability, it is necessary that gynecologists take a more active role in assuring the quality of their work...
April 2017: JSLS: Journal of the Society of Laparoendoscopic Surgeons
https://www.readbyqxmd.com/read/28729745/insufficient-angiogenesis-cause-of-abnormally-thin-endometrium-in-subfertile-patients
#6
Joachim Alfer, Lars Happel, Ralf Dittrich, Matthias W Beckmann, Arndt Hartmann, Andreas Gaumann, Volker U Buck, Irmgard Classen-Linke
INTRODUCTION: This study investigated subfertile patients with abnormally thin endometrium after infertility treatment. As they had adequate serum concentrations of hormones, an endometrial factor for subfertility was suspected. METHODS: To elucidate the cause of subfertility, endometrial biopsies were taken in each patient in the late proliferative and mid-secretory phases of one menstrual cycle. Endometrial biopsies from women with normal menstrual cycles and confirmed fertility who were undergoing hysterectomy for benign uterine disease were used as positive controls...
July 2017: Geburtshilfe und Frauenheilkunde
https://www.readbyqxmd.com/read/28729464/mir-15a-5p-levels-correlate-with-poor-ovarian-response-in-human-follicular-fluid
#7
Kaiyue Zhang, Wanxia Zhong, Wei-Ping Li, Zijiang Chen, Cong Zhang
Poor ovarian response is a significant problem encountered during in vitro fertilization and embryo transfer procedures. Many infertile women may suffer from poor ovarian response and its incidence tends to be increasing in young patients nowadays. It is a major cause of maternal infertility because it is associated with low pregnancy and live birth rates. However, the cause of poor ovarian response is not clear. In this study, we extracted microRNAs from human follicular fluid and performed miRNA sequencing to investigate a potential posttranscriptional mechanism underlying poor ovarian response...
July 20, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28728686/spontaneous-coronary-artery-dissection-associated-with-pregnancy
#8
Marysia S Tweet, Sharonne N Hayes, Elisabeth Codsi, Rajiv Gulati, Carl H Rose, Patricia J M Best
BACKGROUND: Spontaneous coronary artery dissection (SCAD) is the most common cause of pregnancy-associated myocardial infarction and remains poorly characterized. OBJECTIVES: This study sought to assess presentation, clinical factors, and outcomes of pregnancy-associated spontaneous coronary artery dissection (P-SCAD) compared with spontaneous coronary artery dissection not associated with pregnancy (NP-SCAD). METHODS: A Mayo Clinic registry was established in 2010 to include comprehensive retrospective and prospective SCAD data...
July 25, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28728530/the-fate-of-unused-embryos-discourses-action-possibilities-and-subject-positions
#9
Sonja Goedeke, Ken Daniels, Mark Thorpe, Elizabeth du Preez
Although in vitro fertilization (IVF) has offered hope to those struggling with infertility, it has also had some unintended consequences, including the fate of embryos that may be "surplus" to requirement following IVF treatment. The number of embryos in storage across the world is high, creating a dilemma for patients who need to make disposal decisions, as well as presenting an administrative and practical dilemma for clinics. Research has suggested that patients' views of the status of their embryo/s may affect their disposal decisions, and yet the nature of the links between views of the embryo and decisions to either donate or discard remain unclear...
August 2017: Qualitative Health Research
https://www.readbyqxmd.com/read/28728349/occupational-risk-factors-among-iranian-farmworkers-a-review-of-the-available-evidence
#10
Mahin Ghafari, Zahra Cheraghi, Amin Doosti-Irani
Objectives: Farming is one of the most important components of most economies. There is not a comprehensive picture of the health status and work-related hazards among Iranian farmers. We aimed to determine the gaps in the current knowledge regarding the occupational health of Iranian farmworkers. Methods: Electronic databases including Medline, Web of Science, Scopus, and Embase, as well as national databases including the Scientific Information Database, MagIran, and Barakat Knowledge System, were searched for articles published until March 2017...
July 2, 2017: Epidemiology and Health
https://www.readbyqxmd.com/read/28727368/medical-ozone-therapy-reduces-oxidative-stress-and-testicular-damage-in-an-experimental-model-of-testicular-torsion-in-rats
#11
Mustafa Tusat, Ahmet Mentese, Selim Demir, Ahmet Alver, Mustafa Imamoglu
OBJECTIVE: Testicular torsion (TT) refers to rotation of the testis and twisting of the spermatic cord. TT results in ischemia-reperfusion (I/R) injury involving increased oxidative stress, inflammation and apoptosis, and can even lead to infertility. The aim of this study was to investigate the effect of ozone therapy on testicular damage due to I/R injury in an experimental torsion model. MATERIALS AND METHODS: 24 male Sprague-Dawley rats were divided into 3 groups; sham-operated, torsion/detorsion (T/D), and T/D+ozone...
June 14, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28726302/a-multicenter-study-to-evaluate-oxidative-stress-by-oxidation-reduction-potential-a-reliable-and-reproducible-method
#12
A Agarwal, M Arafa, R Chandrakumar, A Majzoub, S AlSaid, H Elbardisi
Seminal oxidative stress (OS) is well-known to affect male fertility status. The discrepancy in OS measurement has hindered its clinical use as a quality indicator for semen. Some tests measured single markers of oxidants or reductants, leading to lack of standardization of results. Oxidation-reduction potential (ORP) is a better representative for OS as it provides an overall measure of the activity of both oxidants and reductants. ORP assessment by MiOXSYS has been introduced as a measure of OS with high specificity in differentiating fertile from infertile semen samples...
July 20, 2017: Andrology
https://www.readbyqxmd.com/read/28726058/-rational-diagnosis-and-treatment-of-male-infertility
#13
REVIEW
S Kliesch
Male infertility can be diagnosed by evaluation of the (female and) male history with respect to risk factors, and includes scrotal sonography, hormone and semen measurements. In severe male factor infertility, genetic testing is indicated. Treatment options vary between preventive, medical or surgical strategies depending on the underlying diagnosis. Assisted reproductive techniques may be applied as a consequence of the couple's infertility profile.
July 19, 2017: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/28725644/pesticides-curbing-soil-fertility-effect-of-complexation-of-free-metal-ions
#14
Sukhmanpreet Kaur, Vijay Kumar, Mohit Chawla, Luigi Cavallo, Albert Poater, Niraj Upadhyay
Researchers have suggested that the reason behind infertility is pernicious effect of broad spectrum pesticides on non target, beneficial microorganism of soil. Here, studying the chelating effect of selective organophosphate and carbamate pesticides with essential metal ions, at all possible combinations of three different pH (4 ± 0.05, 7 ± 0.05 and 9 ± 0.05) and three different temperatures (15 ± 0.5°C, 30 ± 0.5°C and 45 ± 0.5°C), shows very fast rate of reaction which further increases with increase of pH and temperature...
2017: Frontiers in Chemistry
https://www.readbyqxmd.com/read/28725614/a-review-of-varicocele-repair-for-pain
#15
REVIEW
Ryan C Owen, Benjamin J McCormick, Bradley D Figler, Robert M Coward
A dilation of the pampiniform venous plexus in the scrotum above the testicle, called a varicocele, affects approximately 15% of the general male population. While the majority is asymptomatic, pain results in up to 10% of cases of varicoceles. The pain associated with varicoceles is typically mild and is described as heavy, achy, or dull-and is usually isolated to the testicle or spermatic cord. Guidelines clearly recommend varicocele repair in males with varicoceles, infertility, and an abnormal semen analysis...
May 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28724632/hydrogen-peroxide-produced-by-superoxide-dismutase-sod-2-is-required-for-sperm-activation-in-caenorhabditis-elegans
#16
Taro Sakamoto, Hirotaka Imai
Superoxide dismutase (SOD) is a ubiquitous antioxidant enzyme that catalytically converts the superoxide radical to hydrogen peroxide (H2O2). In mammals, high SOD activity can be detected in sperm and seminal plasma, and a correlation between loss of SOD activity and male infertility has been observed; however, the underlying mechanisms remain to be clarified. Here, we report that the deletion of two major SOD genes in Caenorhabditis elegans, sod-1 and sod-2, cause sperm activation defects, thereby leading to a significant reduction in brood size...
July 19, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28724183/physiological-intra-cytoplasmic-sperm-injection-picsi-outcomes-after-oral-pretreatment-and-semen-incubation-with-myo-inositol-in-oligoasthenoteratozoospermic-men-results-from-a-prospective-randomized-controlled-trial
#17
T Korosi, C Barta, K Rokob, T Torok
OBJECTIVE: The aim of the current study was to evaluate the effect of an oral pretreatment with a mix of myo-inositol (Myo-Ins), folic acid, vitamin E, L-carnitine, L-arginine and selenium (Folandrol, Exeltis, Hungary) and subsequent direct Myo-Ins incubation of spermatozoa before Physiological Intra-Cytoplasmic Sperm Injection (PICSI) procedures in infertile couples due to oligoasthenoteratozoospermia with previous failed PICSI procedures. PATIENTS AND METHODS: We performed a prospective, randomized controlled trial at the Assisted Reproduction Unit of the Kaáli Institute (Győr, Hungary)...
June 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28724181/finding-the-best-therapeutic-approach-for-pcos-the-importance-of-inositol-s-bioavailability
#18
B Orrù, R Circo, P Logoteta, S Petousis, G Carlomagno
Broadening clinical evidence has markedly designated inositol(s) as a common and effective therapeutic approach for PCOS and infertility. Although considerable research has been focused on the use in clinical practice of myo-inositol (myo-ins) and D-chiro-inositol (D-chiro-ins), the two major inositol stereoisomers, less attention has been paid to their bioavailability. Therefore, the aim of this paper is to gather and analyze information on inositol(s) bioavailability, to better delineate its optimal concentration for scientific and clinical purposes...
June 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28724179/contribution-of-electron-microscopy-to-study-in-vitro-inositol-effects-on-human-spermatozoa
#19
M Colone, A Calcabrini, V Unfer, A Stringaro
Infertility is a worldwide problem and male partner contributes to almost 30% of cases of infertility. The term oligoasthenoteratospermia is related to defective spermatogenesis and is characterized by a reduction of motility and number of spermatozoa and a change in their morphology. Electron microscopes are frequently used in order to evaluate sperm pathology and overall to establish a correlation between structural and functional deficiencies of altered sperm. High levels of reactive oxygen species endanger sperm function and viability...
June 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28724176/myo-inositol-as-a-male-fertility-molecule-speed-them-up
#20
R A Condorelli, S La Vignera, L M Mongioì, S G Vitale, A S Laganà, L Cimino, A E Calogero
Myo-inositol (MYO) usually represents a therapeutic option for female infertility associated with insulin resistance. Recently, several evidences are accumulating about the potential use of MYO for the treatment of male infertility. This article summarizes the rationale for MYO in the treatment of male infertility. In particular, it illustrates the potential antioxidant and prokinetic role of MYO, and its importance for the modulation of hormonal regulation. In the final part of the manuscript has been added a proposal for a clinical algorithm reserved for patients with asthenozoospermia, where probably MYO could exert specific pharmacological effects...
June 2017: European Review for Medical and Pharmacological Sciences
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