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https://www.readbyqxmd.com/read/28938737/complex-catsper-dependent-and-independent-ca2-i-signalling-in-human-spermatozoa-induced-by-follicular-fluid
#1
Sean G Brown, Sarah Costello, Mark C Kelly, Mythili Ramalingam, Ellen Drew, Stephen J Publicover, Christopher L R Barratt, Sarah Martins Da Silva
STUDY QUESTION: Does progesterone in human follicular fluid (hFF) activate CatSper and do other components of hFF modulate this effect and/or contribute separately to hFF-induced Ca2+ signaling? SUMMARY ANSWER: hFF potently stimulates CatSper and increases [Ca2+]i, primarily due to high concentrations of progesterone, however, other components of hFF also contribute to [Ca2+]i signaling, including modulation of CatSper channel activity and inhibition of [Ca2+]i oscillations...
October 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28937752/inverse-association-between-ambient-sulfur-dioxide-exposure-and-semen-quality-in-wuhan-china
#2
Yuewei Liu, Yun Zhou, Jixuan Ma, Wei Bao, Jingjing Li, Ting Zhou, Xiuqing Cui, Zhe Peng, Hai Zhang, Min Feng, Yuan Yuan, Yuanqi Chen, Xiji Huang, Yonggang Li, Yonggang Duan, Tingming Shi, Lei Jin, Li Wu
Evidence concerning the association between ambient gaseous air pollutant exposures and semen quality is sparse, and findings in previous studies remain largely inconsistent. We enrolled 1759 men with 2184 semen examinations at a large reproductive medical center in Wuhan, China between 2013 and 2015. Inverse distance weighting interpolation was performed to estimate individual exposures to SO2, NO2, CO and O3 during the entire period (lag 0-90 days) and key periods (lag 0-9, 10-14, 70-90 days) of sperm development...
September 22, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28933115/-rancidness-of-armeniacae-semen-amarum-involving-bianzhuang-lunzhi
#3
Jian-Ting Gong, Li-Ying Zhao, Bauer Rudolf, Wen-Juan Mi, Yang Li, Jia-Hui Li, Zhi-Yu Ren, Dong Xu, Ting Zhao, Yong-Hong Yan
This article aims to compare the qualities of Armeniacae Semen Amarum before and after rancidness, in order to study the rancidness of Armeniacae Semen Amarum. In the experiment, content of fatty oil, acid value and peroxide value were determined before and after rancidness,respectively. Meanwhile, HPLC, GC-MS were utilized to analyze laetrile and fatty acid components. Besides, colorimeter and e-nose were introduced to quantify and compare "color and odor". A correlation analysis was conducted on the above results...
December 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28933106/-review-for-sedative-and-hypnotic-mechanism-of-sedative-traditional-chinese-medicine-and-relative-active-components-on-neurotransmitters
#4
REVIEW
Fei-Yan Zhang, Jing-Jing Li, Ying Zhou, Xiao-Yu Xu
The sedative traditional Chinese medicine has a long history of clinical experience in treating insomnia. The main pharmacological effects of sedative agents are sedation, hypnosis, antianxiety and antidepression which might be related to certain neurotransmitters and cytokines and so on. This review summarized the mechanism of sedative traditional Chinese medicine and its active monomers based on neurotransmitters, including GABA, Glu, 5-HT, DA, NE and their metabolites 5-HIAA, HVA, DOPAC. The results showed that the most research about the sedative medicine at present was throught serotonergic and GABA ergic system...
December 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28932299/the-outcome-of-assisted-reproductive-techniques-among-couples-with-male-factors-at-prince-khalid-bin-sultan-fertility-centre-kingdom-of-saudi-arabia
#5
Hytham Bahaeldin Mukhtar, Amani Shaman, Hyder Osman Mirghani, Ayman Adnan Almasalmah
BACKGROUND: Thirty-three percent of infertility due to paternal factors, there are an increasing proportion of couples who decide to conceive by assisted reproductive techniques (ART). The outcome prediction is pivotal for decision making. AIM: We aimed to study the pregnancy outcomes of different ART with male factors infertility. METHODS: This is retrospective cross-sectional study conducted at Tabuk, Kingdom of Saudi Arabia. One hundred fifteen patients' records reviewed using a structured checklist to collect demographic data, sperm (concentration, motility, and morphology)...
August 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28929904/sexual-behaviours-in-the-context-of-the-ebola-virus-disease-evd-in-ghana
#6
Eric Y Tenkorang
Evidence suggests that Ebola virus disease can be transmitted through unprotected sexual intercourse, in particular through contact with the semen of an infected person. Yet few studies examine sexual behaviours in the context of Ebola. Using data collected from 460 women and 340 men within 40 selected communities in the Greater Accra Region of Ghana, this study employed hierarchical linear modelling to examine individual and community-level factors that influence willingness to engage in behaviours that protect against the sexual transmission of Ebola...
September 20, 2017: Culture, Health & Sexuality
https://www.readbyqxmd.com/read/28929253/positive-rheotaxis-extended-drop-a-one-step-procedure-to-select-and-recover-sperm-with-mature-chromatin-for-intracytoplasmic-sperm-injection
#7
Hamilton De Martin, Marcello S Cocuzza, Bruno C Tiseo, Guilherme J A Wood, Eduardo P Miranda, Pedro A A Monteleone, José Maria Soares, Paulo C Serafini, Miguel Srougi, Edmund C Baracat
PURPOSE: The purpose of this study was to develop a novel one-step ICSI approach to select sperm with better chromatin maturity than the conventional method. METHODS: This was a pilot diagnostic study, which prospectively recruited men during a 6-month period in a University-affiliated infertility centre. Forty consecutive semen samples were provided for analysis. The positive rheotaxis extended drop (PRED) was set up creating a pressure and viscosity gradient. Each semen sample was divided into four aliquots: one aliquot for density gradient centrifugation (DGC), two aliquots for PRED (fresh semen (PRED-FS) and processed semen (PRED-DGC)), and one aliquot as the control (FS)...
September 19, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28923707/insemination-extender-supplementation-with-bestatin-and-edta-has-no-effect-on-rabbit-reproductive-performance
#8
L Casares-Crespo, P Fernández-Serrano, J S Vicente, E Mocé, C Castellini, A M Stabile, M P Viudes-de-Castro
The addition of aminopeptidase inhibitors (AMIs) to rabbit semen extenders could be a solution to decrease the hormone degradation (GnRH) by the aminopeptidases existing in the seminal plasma. Therefore, the quantity of GnRH needed to induce ovulation in doe would be comparable with the amount administered intramuscularly (i.m.). This study was conducted to evaluate the effects of two AMIs (bestatin and EDTA) on rabbit semen quality parameters, β nerve growth factor (β-NGF) degradation and reproductive performance after artificial insemination...
September 9, 2017: Theriogenology
https://www.readbyqxmd.com/read/28923283/longer-time-interval-between-semen-processing-and-intrauterine-insemination-does-not-affect-pregnancy-outcome
#9
Charlotte H J R Jansen, Marc G L M Elisen, Cor W Leenstra, Eugenie M Kaaijk, Karlijn J van Stralen, Harold R Verhoeve
OBJECTIVE: To study whether the pregnancy outcome of intrauterine insemination (IUI) is affected by a longer time interval between semen processing and insemination. DESIGN: Retrospective cohort. SETTING: Teaching hospital. PATIENT(S): Couples with subfertility and an indication for IUI over a 10-year period. INTERVENTION (S): Insemination performed the day after but within 24 hours of semen collection and processing (delayed insemination) compared with insemination performed immediately after sperm collection and processing (immediate insemination)...
September 15, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28920796/successful-laparoscopic-oviductal-artificial-insemination-in-the-clouded-leopard-neofelis-nebulosa-in-thailand
#10
Wanlaya Tipkantha, Paweena Thuwanut, Umaporn Maikeaw, Ampika Thongphakdee, Saifon Yapila, Sumate Kamolnorranath, Boripat Siriaroonrat, Pierre Comizzoli, Kaywalee Chatdarong
Captive breeding of clouded leopards (Neofelis nebulosa) is challenging because of mating incompatibility, high incidence of teratospermia in males, and inconsistent ovulation patterns in females. Assisted reproductive techniques, therefore, are necessary to overcome these issues and maintain the genetic diversity in the captive population. The objective was to use laparoscopic oviductal artificial insemination (AI) to breed genetically valuable females (n = 4; aged 4.5-5 yr) that were unsuccessfully paired...
September 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28917863/purification-characterization-and-biological-effect-of-reversing-the-kidney-yang-deficiency-of-polysaccharides-from-semen-cuscutae
#11
Song Yang, Xinfang Xu, Hefang Xu, Shuya Xu, Qinghua Lin, Zhe Jia, Ting Han, Hui Zhang, Ying Zhang, Huan Liu, Yan Gao, Xiangri Li
Semen cuscutae is a well-known Chinese medicine which has been used to nourish kidney. It is the first study to demonstrate that the polysaccharides from semen cuscutae showed significant activity of nourishing kidney-yang by increasing the levels of testosterone and estradiol, decreasing the level of blood urea nitrogen, improving immune function, possessing antioxidant effect. Three homogeneous polysaccharides were obtained by DEAE-cellulose and Sephacryl S-400 which were named as C-7WR1, C-7WR2 and C-7WR3 with average molecular weight of 7...
November 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28917726/ovulation-and-fertility-responses-for-sows-receiving-once-daily-boar-exposure-after-weaning-and-ovugel-%C3%A2-followed-by-a-single-fixed-time-post-cervical-artificial-insemination
#12
R R Ulguim, F P Bortolozzo, I Wentz, M Johnston, S K Webel, L Arend, R V Knox
Boar exposure is used to stimulate follicle development and estrus in sows after weaning and also to improve semen uptake and sperm transport with insemination. However, the need and value of boar exposure is uncertain when ovulation induction is used. These studies were designed to determine the effect of daily boar exposure after weaning when used with ovulation induction and fixed time post-cervical artificial insemination (PCAI). In experiment 1, sows were weaned into stalls and assigned to receive 3 min of daily fenceline boar exposure (BE, n = 7) or no boar exposure (NBE, n = 8)...
September 8, 2017: Theriogenology
https://www.readbyqxmd.com/read/28916146/chinese-sacbrood-virus-infection-in-asian-honey-bees-apis-cerana-cerana-and-host-immune-responses-to-the-virus-infection
#13
Liu Shan, Wang Liuhao, Guo Jun, Tang Yujie, Chen Yanping, Wu Jie, Li Jilian
Chinese Sacbrood virus (CSBV) is a positive-stranded RNAvirus that infects both the European honey bee (Apis mellifera) and the Asian honey bee (A. cerana). However, CSBV has much more devastating effects on Asian honey bees than on European honey bees, posing a serious threat to the agricultural and natural ecosystems that rely on A. cerana for pollination service. Using quantitative RT-PCR method, we conducted studies to examine the CSBV infection in Asian honey bee colonies and immune responses of individual bees in response to CSBV infection...
September 12, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/28915245/effects-of-gnrh-vaccination-in-wild-and-captive-african-elephant-bulls-loxodonta-africana-on-reproductive-organs-and-semen-quality
#14
Imke Lueders, Debbie Young, Liana Maree, Gerhard van der Horst, Ilse Luther, Stephan Botha, Brendan Tindall, Geoffrey Fosgate, André Ganswindt, Henk J Bertschinger
OBJECTIVES: Although the African elephant (Loxodonta africana) is classified as endangered by the International Union for Conservation of Nature (IUCN), in some isolated habitats in southern Africa, contraception is of major interest due to local overpopulation. GnRH vaccination has been promoted as a non-invasive contraceptive measure for population management of overabundant wildlife. We tested the efficacy of this treatment for fertility control in elephant bulls. METHODS: In total, 17 male African elephants that were treated with a GnRH vaccine were examined in two groups...
2017: PloS One
https://www.readbyqxmd.com/read/28912811/corrigendum-to-in-vitro-antioxidant-treatment-of-semen-samples-in-assisted-reproductive-technology-effects-of-myo-inositol-on-nemaspermic-parameters
#15
Mariangela Palmieri, Palma Papale, Antonietta Della Ragione, Giuseppa Quaranta, Giovanni Russo, Sabatino Russo
[This corrects the article DOI: 10.1155/2016/2839041.].
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/28911932/varicocelectomy-to-upgrade-semen-quality-to-allow-couples-to-use-less-invasive-forms-of-assisted-reproductive-technology
#16
Mary K Samplaski, Kirk C Lo, Ethan D Grober, Armand Zini, Keith A Jarvi
OBJECTIVE: To determine the magnitude of improvement in semen parameters after a varicocelectomy and the fraction that have improvements such that couples needing IVF or IUI are "upgraded" to needing less invasive assisted reproductive technology (ART). DESIGN: Retrospective review of prospectively collected data. SETTING: Academic medical centers. PATIENT(S): Men presenting for a fertility evaluation with a clinical varicocele...
September 11, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28911211/are-there-intracellular-ca2-oscillations-correlated-with-flagellar-beating-in-human-sperm-a-three-vs-two-dimensional-analysis
#17
G Corkidi, F Montoya, P Hernández-Herrera, W A Ríos-Herrera, M F Müller, C L Treviño, A Darszon
STUDY QUESTION: Are there intracellular Ca2+ ([Ca2+]i) oscillations correlated with flagellar beating in human sperm? SUMMARY ANSWER: The results reveal statistically significant [Ca2+]i oscillations that are correlated with the human sperm flagellar beating frequency, when measured in three-dimensions (3D). WHAT IS KNOWN ALREADY: Fast [Ca2+]i oscillations that are correlated to the beating flagellar frequency of cells swimming in a restricted volume have been detected in hamster sperm...
September 1, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28905766/re-semen-quality-of-young-adult-icsi-offspring-the-first-results
#18
Craig Niederberger
No abstract text is available yet for this article.
October 2017: Journal of Urology
https://www.readbyqxmd.com/read/28904798/patterns-of-residual-hiv-1-rna-shedding-in-the-seminal-plasma-of-patients-on-effective-antiretroviral-therapy
#19
Christophe Pasquier, Marie Walschaerts, Stéphanie Raymond, Nathalie Moinard, Karine Saune, Myriam Daudin, Jacques Izopet, Louis Bujan
BACKGROUND: More and more HIV-1-infected men on effective antiretroviral treatment (ART) have unprotected sex in order to procreate. The main factor influencing transmission is seminal HIV shedding. While the risk of HIV transmission is very low, it is difficult to assess in individuals. Nevertheless, it should be quantified. RESULTS: We retrospectively analysed seminal plasma HIV-1 shedding by 362 treated HIV-infected men attending a medically assisted reproduction centre (1998-2013) in order to determine its frequency, the impact of the antiretroviral regimen on HIV shedding, and to identify shedding patterns...
2017: Basic and Clinical Andrology
https://www.readbyqxmd.com/read/28903836/reconsidering-a-lower-level-of-follicle-stimulating-hormone-as-abnormal-in-sub-fertile-males-of-pakistan
#20
Shehla Arif, Ayesha Khan
OBJECTIVE: To assess the association between Follicle-Stimulating Hormone (FSH) and semen parameters in order to evaluate whether the current laboratory reference for abnormal FSH levels should be readjusted. STUDY DESIGN: Observational, cross-sectional study. PLACE AND DURATION OF STUDY: Infertility Clinic of Gynecology Unit 1, Civil Hospital, Karachi, from May 2015 to April 2016. METHODOLOGY: The study included 100 sub-fertile males inducted from the clinic...
August 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
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