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Sperm analysis

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https://www.readbyqxmd.com/read/27913189/construction-and-analysis-of-a-human-testis-sperm-enriched-interaction-network-unraveling-the-ppp1cc2-interactome
#1
Joana Vieira Silva, Sooyeon Yoon, Pieter-Jan De Bock, Alexander V Goltsev, Kris Gevaert, José Fernando F Mendes, Margarida Fardilha
BACKGROUND: Phosphoprotein phosphatase 1 catalytic subunit gamma 2 (PPP1CC2), a PPP1CC tissue-specific alternative splice restricted to testicular germ cells and spermatozoa, is essential for spermatogenesis and spermatozoa motility. The key to understand PPP1CC2 regulation lies on the characterization of its interacting partners. METHODS: We construct a testis/sperm-enriched protein interaction network and analyzed the topological properties and biological context of the network...
November 29, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27911457/what-is-the-impact-of-extracorporeal-shock-wave-lithotripsy-on-semen-parameters-a-systematic-review-and-meta-analysis
#2
Mohammad H Radfar, Nasser Simforoosh, Mehdi Sotoudeh, Mehdi H Ramezani, Mohammad J Mollakoochakian, Maryam Nikravesh, Hamidreza Shemshaki
BACKGROUND: Extracorporeal shock wave lithotripsy (ESWL) is an important tool for the management of urolithiasis. The effects of shockwaves on tissues are established. The aim of this meta-analysis is to evaluate the microscopic semen characteristics of young men before and after ESWL treatment for lower ureteral calculi. METHODS: Literature searches were performed following the Cochrane guidelines. We conducted a systematic review and meta-analysis that included six trials that investigated the effects of ESWL on semen parameters, including sperm concentration, motility, and hematospermia...
December 2, 2016: Urologia
https://www.readbyqxmd.com/read/27908670/proteome-of-the-rete-testis-fluid-from-tropically-adapted-morada-nova-rams
#3
Mauricio Fraga van Tilburg, Solange Damasceno Sousa, Révila Bianca Ferreira de Melo, Frederico B Moreno, Ana Cristina Monteiro-Moreira, Renato A Moreira, Arlindo de Alencar Moura
The rete testis has a close relationship with sperm development and may have other functions besides serving as an intercalated channel. The aim of this study was to identify and characterize the proteins of rete testis fluid (RTF) from tropically-adapted Morada Nova rams. Testicles obtained from six Morada Nova rams were dissected and the head of the epididymis was separated to access the efferent ducts. Rete testis fluid was obtained by gentle massage of the testis. The fluid was centrifuged to remove cell debris and sperm...
November 22, 2016: Animal Reproduction Science
https://www.readbyqxmd.com/read/27907243/an-optimized-centrifugal-method-for-separation-of-semen-from-superabsorbent-polymers-for-forensic-analysis
#4
Lucy R Camarena, Bailey K Glasscock, Demi Daniels, Nicolle Ackley, Marybeth Sciarretta, Sarah J Seashols-Williams
Connection of a perpetrator to a sexual assault is best performed through the confirmed presence of semen, thereby proving sexual contact. Evidentiary items can include sanitary napkins or diapers containing superabsorbent polymers (SAPs), complicating spermatozoa visualization and DNA analysis. In this report, we evaluated the impact of SAPS on the current forensic DNA workflow, developing an efficient centrifugal protocol for separating spermatozoa from SAP material. The optimized filtration method was compared to common practices of excising the top layer only, resulting in significantly higher sperm yields when a core sample of the substrate was taken...
December 1, 2016: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/27899719/a-novel-hypothesis-for-histone-to-protamine-transition-in-bos-taurus-spermatozoa
#5
Gerly Sillaste, Lauris Kaplinski, Riho Meier, Ülle Jaakma, Elo Eriste, Andres Salumets
DNA compaction with protamines in sperm is essential for successful fertilization. However, a portion of sperm chromatin remains less tightly packed with histones, which genomic location and function remain unclear. We extracted and sequenced histone-associated DNA from sperm of nine ejaculates from three bulls. We found that the fraction of retained histones varied between samples but the variance was similar between samples from the same and different individuals. The most conserved regions showed similar abundance across all samples, while in other regions their presence correlated with the size of histone fraction...
November 29, 2016: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/27899313/prognostic-factors-for-assisted-reproductive-technology-in-women-with-endometriosis-related-infertility
#6
Chloé Maignien, Pietro Santulli, Vanessa Gayet, Marie-Christine Lafay-Pillet, Diane Korb, Mathilde Bourdon, Louis Marcellin, Dominique de Ziegler, Charles Chapron
BACKGROUND: Assisted reproductive technology is one of the therapeutic options offered for managing endometriosis-associated infertility. Yet, published data on assisted reproductive technology outcome in women affected by endometriosis are conflicting and the determinant factors for pregnancy chances unclear. OBJECTIVE: To evaluate assisted reproductive technology outcomes in a series of 359 endometriosis patients, to identify prognostic factors and determine if there is an impact of the endometriosis phenotype...
November 26, 2016: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27896474/worldwide-prevalence-of-adverse-pregnancy-outcomes-among-singleton-pregnancies-after-in-vitro-fertilization-intracytoplasmic-sperm-injection-a-systematic-review-and-meta-analysis
#7
REVIEW
Jia-Bi Qin, Xiao-Qi Sheng, Di Wu, Shi-You Gao, Yi-Ping You, Tu-Bao Yang, Hua Wang
PURPOSE: The worldwide prevalence of adverse pregnancy outcomes (APOs) in singleton pregnancies after in vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI) is suggested to vary; however, a complete overview is missing. The aim of this review is to estimate the worldwide prevalence of APOs associated with IVF/ICSI singleton pregnancies. METHODS: PubMed, Google Scholar, Cochrane Libraries, and Chinese databases were searched for studies assessing APOs among IVF/ICSI singleton births through March 2016...
November 28, 2016: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/27895910/proteomic-identification-of-cryostress-in-epididymal-spermatozoa
#8
Sung Jae Yoon, Md Saidur Rahman, Woo Sung Kwon, Do Yeal Ryu, Yoo Jin Park, Myung Geol Pang
BACKGROUND: Cryopreservation of epididymal spermatozoa is important in cases in which it is not possible to collect semen using normal methods, as the sudden death of an animal or a catastrophic injury. However, the freezing and thawing processes cause stress to spermatozoa, including cold shock, osmotic damage, and ice crystal formation, thereby reducing sperm quality. We assessed the motility (%), motion kinematics, capacitation status, and viability of spermatozoa using computer-assisted sperm analysis and Hoechst 33258/chlortetracycline fluorescence staining...
2016: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/27895139/human-spermatozoa-quantitative-proteomic-signature-classifies-normo-and-asthenozoospermia
#9
Mayank Saraswat, Sakari Joenväärä, Tushar Jain, Anil Kumar Tomar, Ashima Sinha, Sarman Singh, Savita Yadav, Risto Renkonen
Scarcely understood defects lead to asthenozoospermia which results in poor fertility outcomes. Incomplete knowledge of these defects hinders the development of new therapies and reliance on interventional therapies, such as in vitro fertilization, increases. Sperm cells, being transcriptionally and translationally silent, necessitate the proteomic approach to study the sperm function. We have performed a differential proteomics analysis of human sperm and seminal plasma and identified and quantified 667 proteins in sperm and 429 proteins in seminal plasma dataset which were used for further analysis...
November 28, 2016: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/27893825/low-birth-weight-is-associated-with-a-decreased-overall-adult-health-status-and-reproductive-capability-results-of-a-cross-sectional-study-in-primary-infertile-patients
#10
Luca Boeri, Eugenio Ventimiglia, Paolo Capogrosso, Silvia Ippolito, Angela Pecoraro, Marco Paciotti, Roberta Scano, Alessandro Galdini, Luca Valsecchi, Enrico Papaleo, Francesco Montorsi, Andrea Salonia
Individuals born with low birth weight (LBW) risk cardiometabolic complications later in life. However the impact of LBW on general health status and male reproductive function has been scantly analysed. We investigated the clinical and seminal impact of different birth weights (BW) in white-European men presenting for primary couple's infertility. Demographic, clinical, and laboratory data from 827 primary infertile men were compared with those of 373 consecutive fertile men. Patients with BW ≤2500, 2500-4200, and ≥4200gr were classified as having LBW, normal (NBW), and high BW (HBW), respectively...
2016: PloS One
https://www.readbyqxmd.com/read/27892789/4-vinylcyclohexene-diepoxide-disrupts-sperm-characteristics-endocrine-balance-and-redox-status-in-testes-and-epididymis-of-rats
#11
Isaac A Adedara, Amos O Abolaji, Emmanuel O Ladipo, Ore J Fatunmibi, Ayodeji O Abajingin, Ebenezer O Farombi
OBJECTIVES: Exposure to 4-vinylcyclohexene diepoxide (VCD) was reported to induce testicular germ cell toxicity in rodents. However, there is paucity of information on the precise biochemical and molecular mechanisms of VCD-induced male reproductive toxicity. METHODOLOGY: This study investigated the influence of VCD on testicular and epidydimal functions following oral exposure of Wistar rats to VCD at 0, 100, 250 and 500 mg/kg for 28 consecutive days. RESULTS: Administration of VCD significantly decreased the body weight gain and organo-somatic indices of the testes and epididymis...
November 28, 2016: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/27892527/abnormal-hypermethylation-of-the-vdac2-promoter-is-a-potential-cause-of-idiopathic-asthenospermia-in-men
#12
Aiming Xu, Yibo Hua, Jianzhong Zhang, Wei Chen, Kai Zhao, Wei Xi, Hainan Wang, Jianzheng Fang, Shifeng Su, Min Tang, Bianjiang Liu, Zengjun Wang
This study aimed to explore the association between the methylation status of the VDAC2 gene promoter region and idiopathic asthenospermia (IAS). Twenty-five IAS patients and 27 fertile normozoospermia (NZ) were involved. GC-2spd cells were treated with different concentrations of 5-aza-2'-deoxycytidine (5-Aza-CdR) for 24 h and 48 h. qRT-PCR was conducted to reveal whether or not VDAC2 expression was regulated by methylated modification. A dual-luciferase activity detection was used to verify VDAC2 promoter activity in GC-2spd cells...
November 28, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27888380/kinetin-improves-motility-viability-and-antioxidative-parameters-of-ram-semen-during-storage-at-refrigerator-temperature
#13
Elham Zadeh Hashem, Mohsen Eslami
The present experiment was conducted to evaluate the effect of kinetin on ram semen quality during cold storage. Ejaculates were collected using an artificial vagina from five Qezel rams. Ejaculates which met the criteria (volume of 0.75-2 ml; minimum spermatozoa concentration of 2.5 × 109 spermatozoa/ml and forward progressive motility of 80%), were pooled, diluted with extender without kinetin (control) or enriched with 25 (K 25), 50 (K 50), 100 (K 100) and 200 (K 200) μM kinetin at a final concentration of 500 × 106 spermatozoa per mL...
November 25, 2016: Cell and Tissue Banking
https://www.readbyqxmd.com/read/27887759/implementing-an-open-access-casa-software-for-the-assessment-of-stallion-sperm-motility-relationship-with-other-sperm-quality-parameters
#14
Elisa Giaretta, Mauro Munerato, Marc Yeste, Giovanna Galeati, Marcella Spinaci, Carlo Tamanini, Gaetano Mari, Diego Bucci
Setting an open-access computer assisted sperm analysis (CASA) may benefit the evaluation of motility in mammalian sperm, especially when economic constraints do not allow the use of a commercial system. There have been successful attempts to develop such a device in Zebra fish sperm and the system has been used in very few studies on mammalian spermatozoa. Against this background, the present study aimed at developing an open-access CASA system for mammalian sperm using the horse as a model and based upon the Image J software previously established for Zebra fish sperm...
November 13, 2016: Animal Reproduction Science
https://www.readbyqxmd.com/read/27887718/novel-centrifugal-technology-for-measuring-sperm-concentration-in-the-home
#15
Ulrich Y Schaff, Laura L Fredriksen, Jon G Epperson, Tiffany R Quebral, Sara Naab, Mark J Sarno, Michael L Eisenberg, Greg J Sommer
OBJECTIVE: To evaluate the analytical performance and usability of the Trak Male Fertility Testing System, a semiquantitative (categorical) device recently US Food and Drug Administration (FDA)-cleared for measuring sperm concentration in the home by untrained users. DESIGN: A three-site clinical trial comparing self-reported lay user results versus reference results obtained by computer-aided semen analysis (CASA). SETTING: Simulated home use environments at fertility centers and urologist offices...
November 22, 2016: Fertility and Sterility
https://www.readbyqxmd.com/read/27887716/who-requests-their-sperm-donor-s-identity-the-first-ten-years-of-information-releases-to-adults-with-open-identity-donors
#16
Joanna E Scheib, Alice Ruby, Jean Benward
OBJECTIVE: To report findings from 10 years of requests from adults eligible to obtain their open-identity sperm donor's information. DESIGN: Analysis of archived family and donor data. Semistructured interviews at information releases. SETTING: Not applicable. PATIENT(S): A total of 85 DI adults requesting 43 donor identities; program data on 256 DI families. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): We identified [1] demographic predictors of requesting donor identities, [2] information release timing and length, and [3] request motives...
November 22, 2016: Fertility and Sterility
https://www.readbyqxmd.com/read/27885720/a-retrospective-clinical-study-of-endoscopic-assisted-transcervical-insemination-in-the-bitch-with-frozen-thawed-dog-semen
#17
S J Mason
Since the conclusion of data collation from previously published work, a further 352 inseminations using frozen-thawed dog semen by endoscopic-assisted transcervical insemination (EIU) have been performed by the author. Insemination was performed on the second day in which crenulation of the anterior vagina was detected in conjunction with a progesterone concentration of >10 ng/ml. All semen samples were analysed for total number of sperm, total motility and progressive motility using computer-assisted semen analysis (CASA)...
November 24, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27882589/attenuation-of-the-cyproterone-acetate-induced-testicular-hypofunction-by-a-novel-nutraceutical-lycopene-a-genomic-approach
#18
A Tripathy, A Ghosh, A Dey, B P Pakhira, D Ghosh
This study was designed to explore the cyproterone acetate (CPA)-induced andrological hypofunction and its correction by oral administration of lycopene. In this concern, spermatogenic, biochemical, histological and genomic profiles were studied. Cyproterone acetate administration for 1 month helped to develop infertile model rats. A significant recovery was noted in sperm motility, sperm count, sperm viability, hypo-osmotic swelling tail-coiled spermatozoa; activities of testicular ∆(5) , 3β-hydroxysteroid dehydrogenase (HSD), 17β-HSD, catalase (CAT) and superoxide dismutase (SOD); and levels of conjugated diene (CD), malondialdehyde (MDA), testicular cholesterol and serum testosterone after the administration of lycopene at 1...
November 24, 2016: Andrologia
https://www.readbyqxmd.com/read/27881764/zebrafish-embryonic-development-is-induced-by-carp-sperm
#19
Thomas A Delomas, Konrad Dabrowski
Haploid gynogenetic screens increase the efficiency of forward genetic screens and linkage analysis in fish. Typically, UV-irradiated zebrafish sperm is used to activate zebrafish oocytes for haploid screens. We describe the use of UV-irradiated common carp sperm to activate haploid gynogenetic zebrafish development. Carp × zebrafish hybrids are shown to have a characteristic set of features during embryonic development and exhibit functional development of several tissues (muscle, heart and nervous system)...
November 2016: Biology Letters
https://www.readbyqxmd.com/read/27881345/-extraction-and-identification-of-semen-derived-exosomes-using-peg6000
#20
Cheng Yang, Wen-Bin Guo, Wan-Song Zhang, Jun Bian, Jian-Kun Yang, Tao Qi, Chun-Yan Wang, Cun-Dong Liu
OBJECTIVE: To extract and identify semen-derived exosome using PEG6000. METHODS: Exosomes were extracted from semen specimens from 6 healthy volunteers with step-by-step centrifugations and ultracentrifugation prior to 8% PEG6000 enrichment. The extracted exosomes were characterized by transmission electron microscopy (TEM), nanoparticle tracking analysis (NTA) and Western blotting. RESULTS: The pellets obtained were round or elliptic membrane vesicles 30 to 150 nm in diameter with intact double membranes and contained low electron density material...
November 20, 2016: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
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