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https://www.readbyqxmd.com/read/28101935/effect-of-cholesterol-loaded-cyclodextrins-on-cryosurvival-of-dog-spermatozoa
#1
J Khan, M Z Tahir, A Khalid, A Sattar, N Ahmad
Cryopreservation affects integrity of cholesterol and phospholipids in the plasma membrane of sperm leading to decreased fertility of frozen-thawed semen. Cholesterol-loaded cyclodextrins (CLC) have been shown to improve post-thaw semen quality in various species. The aim of this study was to investigate the optimal concentration of CLC for better post-thaw semen quality in dogs. Semen collection, through digital manipulation, was conducted once a week in four adult German shepherd dogs (n = 20 ejaculates; five ejaculates/dog)...
January 18, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28093172/re-lifestyle-factors-and-premature-ejaculation-are-physical-exercise-alcohol-consumption-and-body-mass-index-associated-with-premature-ejaculation-and-comorbid-erectile-problems
#2
https://www.readbyqxmd.com/read/28091518/insights-into-the-molecular-basis-of-long-term-storage-and-survival-of-sperm-in-the-honeybee-apis-mellifera
#3
Ellen Paynter, A Harvey Millar, Mat Welch, Barbara Baer-Imhoof, Danyang Cao, Boris Baer
Honeybee males produce ejaculates consisting of large numbers of high quality sperm. Because queens never re-mate after a single mating episode early in life, sperm are stored in a specialised organ for years but the proximate mechanisms underlying this key physiological adaptation are unknown. We quantified energy metabolism in honeybee sperm and show that the glycolytic metabolite glyceraldehyde-3-phosphate (GA3P) is a key substrate for honeybee sperm survival and energy production. This reliance on non-aerobic energy metabolism in stored sperm was further supported by our findings of very low levels of oxygen inside the spermatheca...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28088261/parquetina-nigrescens-leaves-chemical-profile-and-influence-on-the-physical-and-biochemical-indices-of-sexual-activity-of-male-wistar-rats
#4
Omowumi Titilola Kayode, Musa Toyin Yakubu
OBJECTIVE: The leaves of Parquetina nigrescens have been claimed in folk medicine to be useful for managing sexual dysfunction, but there is inadequate scientific evidence for this claim. This investigation was conducted to assess the effects of aqueous leaf extract of Parquetina nigrescens (AEPN) in rats induced with sexual dysfunction. METHODS: Male rats were allocated into various groups after being induced into sexual dysfunction with paroxetine hydrochloride...
January 2017: Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28080186/satisfaction-with-sex-life-in-sexually-active-heterosexual-couples-dealing-with-breast-cancer-a-nationwide-longitudinal-study
#5
Nina Rottmann, Dorte Gilså Hansen, René dePont Christensen, Mariët Hagedoorn, Morten Frisch, Anne Nicolaisen, Niels Kroman, Henrik Flyger, Christoffer Johansen
BACKGROUND: A breast cancer (BC) diagnosis can profoundly affect the sex life of patient and partner within a couple. The purpose of the present study is to examine whether individual and partner sexual functioning, affectionate behavior, emotional closeness and depressive symptoms are associated with change over time in satisfaction with sex life of sexually active heterosexual couples dealing with BC and to explore whether the associations differ between patients and partners after adjustment for basic sociodemographic characteristics, comorbidity and BC treatment...
January 12, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28078226/clinical-utility-of-sperm-dna-fragmentation-testing-practice-recommendations-based-on-clinical-scenarios
#6
REVIEW
Ashok Agarwal, Ahmad Majzoub, Sandro C Esteves, Edmund Ko, Ranjith Ramasamy, Armand Zini
Sperm DNA fragmentation (SDF) has been generally acknowledged as a valuable tool for male fertility evaluation. While its detrimental implications on sperm function were extensively investigated, little is known about the actual indications for performing SDF analysis. This review delivers practice based recommendations on commonly encountered scenarios in the clinic. An illustrative description of the different SDF measurement techniques is presented. SDF testing is recommended in patients with clinical varicocele and borderline to normal semen parameters as it can better select varicocelectomy candidates...
December 2016: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28073201/azoospermic-patient-s-treatment-an-experience-of-a-pma-hospital-unit-and-role-of-ultrasonography
#7
Paolo Panella, Pietro Pepe, Placido Borzì, Maria Elena Vento, Michele Pennisi, Paolo Scollo
INTRODUCTION: Azoospermia causes about 10% of male infertility and the best therapeutic option is the retrieval of sperm from testis or epididymis. MATERIAL AND METHODS: From Juanary 2008 to June 2016, 92 men (median 36 years; range: 25-54 years) were submitted in 47 cases to TESE (testicular sperm extraction) and in 45 cases to PESA (percutaneous epididymal sperm aspiration) for secretory and obstructive azoospermia, respectively; moreover, all the patients previously underwent color Doppler ultrasound of the testis and transrectal ultrasound of the prostate...
December 30, 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28073193/analysis-of-myo-inositol-effect-on-spermatozoa-motility-in-hyper-viscous-ejaculates-and-in-patients-with-grades-ii-and-iii-varicocele
#8
Filomena Scarselli, Anna Maria Lobascio, Mario Terribile, Valentina Casciani, Pierfrancesco Greco, Giorgio Franco, Maria Giulia Minasi, Ermanno Greco
The goal of this study is to evaluate MYOInositol effects on spermatozoa motility, in patients' ejaculates with severe varicocele or hyper viscosity. The study included normal viscosity ejaculate from 30 patients affected by varicocele and hyper viscosity ejaculate from 33 patients without any testicular pathologies. All selected samples showed sperm concentration > 2 million/ml and progressive motility < 32%. In both groups, the pellet obtained after centrifugation in buffered medium, was divided in two aliquots, both incubated for 15 minutes at 37°C: one with MYO-Inositol and the other one, as control, only in phosphate buffered saline (PBS)...
December 30, 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28068904/long-term-kinetics-of-zika-virus-rna-and-antibodies-in-body-fluids-of-a-vasectomized-traveller-returning-from-martinique-a-case-report
#9
Guenter Froeschl, Kristina Huber, Frank von Sonnenburg, Hans-Dieter Nothdurft, Gisela Bretzel, Michael Hoelscher, Lothar Zoeller, Matthias Trottmann, Francisco Pan-Montojo, Gerhard Dobler, Silke Woelfel
BACKGROUND: The magnitude of the current Zika virus (ZIKV) epidemic has led to a declaration of a Public Health Emergency of International Concern by the WHO. Findings of viable viral particles in semen for several weeks are corroborating reports of sexual transmission of ZIKV. Serious consequences of a positive diagnostic result particularly in the pregnant patient are calling for precise diagnostic tools also at later time points after infection. Currently, recommendations suggest a diagnostic period of direct viral detection of 5 to 7 days after onset of symptoms in serum or plasma, and up to 3 weeks in urine samples...
January 10, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28068122/functions-of-vocalization-in-sociosexual-behaviors-in-rats-rattus-norvegicus-in-a-seminatural-environment
#10
Xi Chu, Eelke Snoeren, Anders Ågmo
Both male and female rats produce vocalizations in the presence of a potential sexual partner. In this study, we evaluated the role of vocalizations in sociosexual behaviors in an ecologically valid procedure. Three males and 4 females were housed in a seminatural environment. In each group, 1 or 2 males and females were devocalized, and the other subjects were sham operated. Sociosexual interactions between males and females were recorded for a period of 1 hr when all 4 females were receptive so that the males had the choice to interact either with vocalizing or with silent females...
January 9, 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28066955/dose-rates-of-antimicrobial-substances-in-boar-semen-preservation-time-to-establish-new-protocols
#11
M Schulze, M Grobbel, A Riesenbeck, S Brüning, J Schaefer, M Jung, R Grossfeld
To achieve a standardized number of spermatozoa in the final AI dose, varying amounts of extender fluid with a fixed concentration of antimicrobial substances are currently added to boar ejaculates. This practice ignores the different degrees of dilution of the antimicrobials in the end product. In calculating the final concentration of gentamicin in AI doses from 27,538 processed boar ejaculates, we demonstrated varying gentamicin concentrations in the resultant extended boar semen samples. The median concentration was 220...
January 9, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28065363/relationship-between-amyloid-precursor-protein-in-seminal-plasma-and-abnormal-penile-sympathetic-skin-response-in-lifelong-premature-ejaculation
#12
Zhiwei Hong, Yuming Feng, Hualong Ding, Xuechun Hu, Jin-Chun Lu, Xie Ge, Yifeng Ge, Bing Yao
INTRODUCTION: Hyperactivity of the sympathetic nervous system can play an important role in lifelong premature ejaculation (PE). Our previous study found that amyloid precursor protein (APP) levels in seminal plasma of patients with PE were clearly increased. Amyloid-β (Aβ) is derived from APP. Excessive Aβ, especially Aβ42, can cause neuronal dysfunction. AIM: To determine whether APP and Aβ42 are associated with an abnormal penile sympathetic skin response (PSSR)...
January 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/28062807/junctional-adhesion-molecule-a-expression-in-the-murine-epididymal-tract-and-accessory-organs-and-acquisition-by-maturing-sperm
#13
Kathie Z Wu, Kun Li, Deni S Galileo, Patricia A Martin-DeLeon
STUDY QUESTION: Is junctional adhesion molecule A (JAM-A), a sperm protein essential for normal motility, expressed in the murine post-testicular pathway and involved in sperm maturation? SUMMARY ANSWER: JAM-A is present in the prostate and seminal vesicles and in all three regions of the epididymis where it is secreted in epididymosomes in the luminal fluid and can be delivered to sperm in vitro. WHAT IS KNOWN ALREADY: JAM-A shares with the plasma membrane Ca(2+)ATPase 4 (PMCA4, the major Ca(2+) efflux pump in murine sperm) a common interacting partner, CASK (Ca(2+)/CaM-dependent serine kinase)...
January 6, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28060836/diagnosis-of-partial-retrograde-ejaculation-in-non-azoospermic-infertile-men-with-low-semen-volume
#14
Roger Mieusset, Marie Walschaerts, François Isus, Thierry Almont, Myriam Daudin, Safouane M Hamdi
In non-azoospermic patients with low semen volume (LSV), looking for partial retrograde ejaculation (PRE) by searching sperm in the postejaculatory urine (PEU) is required. The use of a retro-ejaculatory index (R-ratio) was suggested to define PRE, but none of the studies indicated a specific threshold above which PRE must be considered. Our objective was to propose a threshold value for the R-ratio as indicative of PRE in patients with LSV selected to be devoid of any known causes or risk factors for retrograde ejaculation or LSV...
2017: PloS One
https://www.readbyqxmd.com/read/28060317/observation-and-quantification-of-mating-behavior-in-the-pinewood-nematode-bursaphelenchus-xylophilus
#15
Najie Zhu, Liqun Bai, Stefan Schütz, Baojun Liu, Zhenyu Liu, Xingyao Zhang, Hongshi Yu, Jiafu Hu
A method for observing and quantifying the mating behavior of the pinewood nematode, Bursaphelenchus xylophilus, was established under a stereomicroscope. To improve the mating efficiency of B. Xylophilus and to increase the chances of mating observation, virgin adults were cultured and used for the investigation. Eggs were obtained by keeping the nematodes in water and allowing the females to lay eggs for 10 min. The second-stage juveniles (J2) were synchronized by incubating the eggs for 24 h at 25 °C in the dark, and the early J4 were obtained by culturing the J2 with grey mold, Botrytis cinerea, for another 52 h...
December 25, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28058738/epigallocatechin-3-gallate-egcg-and-green-tea-polyphenols-do-not-improve-stallion-semen-parameters-during-cooling-at-4%C3%A2-c
#16
D Bucci, M Spinaci, B Mislei, B Gadani, G Rizzato, C C Love, C Tamanini, G Galeati, G Mari
Stallion semen storage for artificial insemination is mainly based on liquid cooled storage. In many stallions this technique maintains sperm quality for an extended period of time (24-72 hr) at 7°C. While this technique is commonly used in the horse industry, there can be a decline in fertility in some stallions, due to an inability of their sperm to tolerate the cool storage process. The aim of the present work was to evaluate the effect of two natural antioxidants (epigallocatechin-3-gallate (EGCG) at 20, 60 and 120 μm and green tea polyphenols, and p at ...
January 6, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28058728/untargeted-metabolomic-profiling-of-seminal-plasma-in-non-obstructive-azoospermia-men-a-non-invasive-detection-of-spermatogenesis
#17
Kambiz Gilany, Ahmad Mani-Varnosfaderani, Arash Minai-Tehrani, Fateme Mirzajani, Alireza Ghassempour, Mohammed Reza Sadeghi, Mehdi Amini, Hassan Rezadoost
Male factor infertility is involved in almost half of all infertile couples. Lack of the ejaculated sperm due to testicular malfunction has been reported in 6-10% of infertile, a condition named non-obstructive azoospermia (NOA). In this study, we investigated untargeted metabolomic profiling of the seminal plasma in NOA men using gas chromatography-mass spectrometry (GC-MS) and advance chemometrics. In this regard, the seminal plasma fluids of 11 NOA men with TESE-negative (AZN), 9 NOA men with TESE-positive (AZP) and 10 fertile (F) healthy men (as a control group) were collected...
January 6, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28057874/pregnancy-and-live-birth-rates-after-microsurgical-vasoepididymostomy-for-azoospermic-patients-with-epididymal-obstruction
#18
Jing Peng, Zhichao Zhang, Yiming Yuan, Wanshou Cui, Weidong Song
STUDY QUESTION: Can microsurgical vasoepididymostomy (MVE) be an effective treatment for azoospermic men with epididymal obstruction? SUMMARY ANSWER: MVE is an effective treatment for epididymal obstruction, with overall patency and live birth rates of 76.3% and 34.8%, respectively. WHAT IS KNOWN ALREADY: We showed that MVE was an effective treatment for non-vasectomized patients with epididymal obstruction and prior failed sperm retrieval for ICSI...
January 5, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28053952/diagnosis-and-treatment-of-premature-ejaculation-by-urologists-in-south-korea
#19
Deok Ha Seo, Seong Uk Jeh, See Min Choi, Sung Chul Kam, Sae Woong Kim, Dae Yul Yang, Du Geon Moon, Sang Kuk Yang, Ki Ha Moon, Jae Seog Hyun
PURPOSE: This study discusses the treatment of premature ejaculation (PE) using various approaches with the goal of evaluating the methods of diagnosis and treatment of PE in clinical practice in 2014 in South Korea. MATERIALS AND METHODS: We surveyed 200 urologists and andrologists who treated patients with PE from July 1, 2014 to July 29, 2014 using an online questionnaire. The questionnaire was composed of 4 parts: disease, comorbidities, diagnosis, and treatment...
December 2016: World Journal of Men's Health
https://www.readbyqxmd.com/read/28053946/ancient-chinese-fangzhongshu-sexual-skills-and-methods-therapy-for-premature-ejaculation
#20
REVIEW
Yong Zhu, Qiang Chen, Yuexing Gu, Jin Yue, Qingqi Zeng
Premature ejaculation (PE) is a common male sexual dysfunction that can have significant effects on a couple's relationship. Behavioral therapy and psychotherapy are both safe and effective methods of treating PE. Ancient Chinese fangzhongshu (sexual skills and methods), which reflects a summary of expert experiences in sexology, contains many therapies for sexual dysfunction that are similar to those used in behavioral therapy or psychotherapy. A brief introduction dealing with the latest definitions of PE and treatment strategies drawn from behavioral therapy and psychotherapy is provided...
December 2016: World Journal of Men's Health
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