keyword
MENU ▼
Read by QxMD icon Read
search

Ejaculate

keyword
https://www.readbyqxmd.com/read/28632408/the-burden-of-sexual-problems-perceived-effects-on-men-s-and-women-s-sexual-partners
#1
David L Rowland, Tiffany N Kolba
Sexual dysfunction sometimes negatively affects the individual, his or her partner, and the relationship. We investigated the relationship between the distress experienced by men and women with orgasmic phase difficulties and the perceived distress of their partner(s). We also identified predictors of perceived partner distress, and related self and partner distress to severity of the problem and relationship quality. Data were drawn from 374 men with premature ejaculation (PE) and 377 women with anorgasmia who responded to a survey regarding their sexual functioning, including their distress about their condition and the perceived distress of their partners...
June 20, 2017: Journal of Sex Research
https://www.readbyqxmd.com/read/28631913/-molecular-aspects-of-the-impact-of-the-speroton-complex-on-the-male-fertility-in-idiopathic-infertility
#2
Sh N Galimov, R M Akhmetov, E F Galimova, F M Bairamgulov, L R Bikkulova
AIM: To characterize the effect of the Speroton complex on the free radical homeostasis in the ejaculate of males of infertile couples and the likelihood of pregnancy in partners. MATERIALS AND METHODS: The study group comprised 30 men aged between 26 and 43 years (mean 33 +/- 4.8 years) with idiopathic infertility. All patients received Speroton one sachet once daily during meals for 3 months. The comparison group consisted of 29 men of fertile age having 1 to 3 healthy children...
June 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/28630352/structural-complexity-and-molecular-heterogeneity-of-a-butterfly-ejaculate-reflect-a-complex-history-of-selection
#3
Camille Meslin, Tamara S Cherwin, Melissa S Plakke, Brandon S Small, Breanna J Goetz, Nathan I Morehouse, Nathan L Clark
Male ejaculates are often structurally complex, and this complexity is likely to influence key reproductive interactions between males and females. However, despite its potential evolutionary significance, the molecular underpinnings of ejaculate structural complexity have received little empirical attention. To address this knowledge gap, we sought to understand the biochemical and functional properties of the structurally complex ejaculates of Pieris rapae butterflies. Males in this species produce large ejaculates called spermatophores composed of an outer envelope, an inner matrix, and a bolus of sperm...
June 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28628957/affect-symptom-fantasy-dream-clinical-and-theoretical-considerations
#4
Eugene J Mahon
A symptom being studied in the process of analysis can be seen as not unlike the unconscious affect it sprang from. The author presents a case in which a symptom, premature ejaculation, was analogous to the unconscious affect of guilt, which itself seemed to be a premature defensive transformation of a deeper current of anger. Guilt was interpreted as if it were a psychic premature ejaculation, a defensive derailment of anger. Fantasy and dream seemed to be engaged in similar transformations, with a fantasy of "premature incarceration" not unlike the symptom itself in its analogous functioning...
April 2017: Psychoanalytic Quarterly
https://www.readbyqxmd.com/read/28627033/silodosin-versus-naftopidil-in-the-treatment-of-premature-ejaculation-a-prospective-multicenter-trial
#5
Yoshikazu Sato, Toshikazu Otani, Toshiyasu Amano, Tohru Araki, Nobuyuki Kondou, Masanori Matsukawa, Musashi Tobe, Kazunori Haga, Kousuke Uchida, Ichiya Honma
OBJECTIVES: To determine the efficacy of two α1-adrenoceptor antagonists with different affinities for α1-adrenoceptor subtypes, silodosin and naftopidil, in the treatment of premature ejaculation. METHODS: This was a prospective, open-label, multicenter trial. A total of 26 patients with untreated acquired premature ejaculation were enrolled. Premature ejaculation was defined based on the International Society for Sexual Medicine recommendation. Patients self-administered on demand silodosin 4 mg or naftopidil 25 mg 1 h before intercourse, alternating drugs at least three times each...
June 18, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/28626150/comparison-of-sperm-subpopulation-structures-in-first-and-second-ejaculated-semen-from-japanese-black-bulls-by-a-cluster-analysis-of-sperm-motility-evaluated-by-a-casa-system
#6
Chihiro Kanno, Kentaro Q Sakamoto, Yojiro Yanagawa, Yoshiyuki Takahashi, Seiji Katagiri, Masashi Nagano
In the present study, bull sperm in the first and second ejaculates were divided into subpopulations based on their motility characteristics using a cluster analysis of data from computer-assisted sperm motility analysis (CASA). Semen samples were collected from 4 Japanese black bulls. Data from 9,228 motile sperm were classified into 4 clusters; 1) very rapid and progressively motile sperm, 2) rapid and circularly motile sperm with widely moving heads, 3) moderately motile sperm with heads moving frequently in a short length, and 4) poorly motile sperm...
June 18, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28615783/premature-ejaculation-a-redundant-entity-in-the-era-of-somatic-symptom-disorder
#7
Arghya Pal, Rudraprasad Acharya
No abstract text is available yet for this article.
May 2017: Indian Journal of Psychological Medicine
https://www.readbyqxmd.com/read/28611437/reproductive-isolation-through-experimental-manipulation-of-sexually-antagonistic-coevolution-in-drosophila-melanogaster
#8
Zeeshan Ali Syed, Martik Chatterjee, Manas Arun Samant, Nagaraj Guru Prasad
Promiscuity can drive the evolution of sexual conflict before and after mating occurs. Post mating, the male ejaculate can selfishly manipulate female physiology, leading to a chemical arms race between the sexes. Theory suggests that drift and sexually antagonistic coevolution can cause allopatric populations to evolve different chemical interactions between the sexes, thereby leading to postmating reproductive barriers and speciation. There is, however, little empirical evidence supporting this form of speciation...
June 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28611311/genome-wide-5-hydroxymethylcytosine-patterns-in-human-spermatogenesis-are-associated-with-semen-quality
#9
Olga A Efimova, Anna A Pendina, Andrei V Tikhonov, Sergey E Parfenyev, Irina D Mekina, Evgeniia M Komarova, Mariia A Mazilina, Eugene V Daev, Olga G Chiryaeva, Ilona A Galembo, Mikhail I Krapivin, Oleg S Glotov, Irina S Stepanova, Svetlana A Shlykova, Igor Yu. Kogan, Alexander M Gzgzyan, Tatyana V Kuznetzova, Vladislav S Baranov
We performed immunofluorescent analysis of DNA hydroxymethylation and methylation in human testicular spermatogenic cells from azoospermic patients and ejaculated spermatozoa from sperm donors and patients from infertile couples. In contrast to methylation which was present throughout spermatogenesis, hydroxymethylation was either high or almost undetectable in both spermatogenic cells and ejaculated spermatozoa. On testicular cytogenetic preparations, 5-hydroxymethylcytosine was undetectable in mitotic and meiotic chromosomes, and was present exclusively in interphase spermatogonia Ad and in a minor spermatid population...
June 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28611113/active-paraoxonase-1-is-synthesised-throughout-the-internal-boar-genital-organs
#10
Isabel Barranco, Cristina Perez-Patiño, Asta Tvarijonaviciute, Inmaculada Parrilla, Alejandro Vicente-Carrillo, Manuel Alvarez-Rodriguez, Jose J Ceron, Emilio Martinez, Heriberto Rodriguez-Martinez, Jordi Roca
The paraoxonase type 1 (PON1) is an enzyme with antioxidant properties recently identified in the seminal plasma (SP) of several species, including the porcine. The aims of the present study were to (1) describe the inmunohistochemical localization of PON1 in the genital organs of fertile boars and (2) evaluate the relationship among PON1 activity and high-density lipoprotein cholesterol (HDL-C) concentration in fluids of the boar genital organs. Immunohistochemical analysis demonstrated that PON1 was present in testis (specifically in Leydig cells, blood vessels, spermatogonia and elongated spermatids), epididymis (specifically in the cytoplasm of the principal epithelial cells, luminal secretion and in the surrounding smooth muscle) and the lining epithelia of the accessory sexual glands (cytoplasmic location in the prostate and membranous in the seminal vesicle and bulbourethral glands)...
June 13, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28610652/novel-insights-into-the-role-of-cell-free-seminal-mrnas-on-semen-quality-and-cryotolerance-of-spermatozoa-in-bulls-bos-taurus
#11
Munivenkatappa Shilpa, Sellappan Selvaraju, Venkataswamy GirishKumar, Sivashanmugam Parthipan, Krishnan B Binsila, Arunachalam Arangasamy, Janivara Parameshwaraiah Ravindra
The aim of the present study was to ascertain the effectiveness of seminal plasma mRNAs as markers to assess the reproductive performance of bulls. Semen samples (33 ejaculates) from 11 bulls were evaluated for sperm kinematic and functional parameters. Total RNA was isolated from cell-free seminal (cfs) using TRIzol LS reagent and the concentration of cfs-RNA was 24.4±2.3µgmL-1 seminal plasma. The cfs-RNA was fragmented to a size of 25-500bp. Of the cfs-mRNAs screened using real time PCR, expression of protamine 1 (PRM1) was positively (P<0...
June 14, 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28609394/evaluation-of-depressive-symptoms-in-mid-aged-women-report-of-a-multicenter-south-american-study
#12
Danny Salazar-Pousada, Alvaro Monterrosa-Castro, Eliana Ojeda, Sandra C Sánchez, Ingrid F Morales-Luna, Faustino R Pérez-López, Peter Chedraui
OBJECTIVE: To evaluate depressive symptoms and related factors among mid-aged women using the 10-item Center for Epidemiologic Studies Depression Scale (CESD-10). METHODS: This was a cross-sectional multicenter study in which women aged 40 to 65 from various South American countries were surveyed with the CESD-10 and a general questionnaire containing personal and partner data. RESULTS: In all, 864 women were interviewed from Colombia (Afro-Colombian, n = 215), Ecuador (Mestizo, n = 202), Perú (Quechua at high altitude, n = 231), and Paraguay (Mestizo, n = 216)...
June 12, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28608609/artificial-insemination-with-frozen-thawed-boar-sperm
#13
REVIEW
Marc Yeste, Joan E Rodríguez-Gil, Sergi Bonet
Artificial insemination with frozen-thawed semen in pigs is not a routine technique; its use is restricted to specific cases, such as preservation of valuable genetic material (germplasm banks), safety strategies in case of natural disasters, long-distance transport of sperm, and in combination with sex-sorting. Cryoinjuries resulting from freeze-thawing protocols are a major concern with regard to the fertilization capacity of the treated sperm, which is lower than that of liquid-stored semen. Here we provide an overview of artificial insemination using cryopreserved sperm, and summarize the factors that influence cryopreservation success before, during, and after freeze-thaw (i...
June 13, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28608426/monitoring-of-libido-and-semen-quality-parameters-in-melatonin-treated-french-alpine-bucks-during-the-non-breeding-season
#14
S Vince, H Valpotić, V Berta, S Milinković-Tur, M Samardžija, J Grizelj, B Špoljarić, D Đuričić, I Nazansky, I Žura Žaja
The aim of this study was to investigate the effects of exogenous melatonin on libido and semen quality parameters in bucks during the non-breeding season. Twelve bucks of the French alpine breed from 1.5 to 4 years of age were assigned into melatonin (MG) and control (CG) groups, with 6 bucks in each group. The experimental period was 3 months (March-May), divided into six periods of 15 days each. The bucks in the MG group received four melatonin implants at the end of March. Two semen samples were taken from the bucks by artificial vagina once per week and their libido estimated...
June 13, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28601162/immature-and-mature-sperm-morphometry-in-fresh-and-frozen-thawed-falcon-ejaculates
#15
S Villaverde-Morcillo, A J Soler, M C Esteso, C Castaño, A Miñano-Berna, F Gonzalez, J Santiago-Moreno
Sperm morphometry is one characteristic which may be useful in prediction of fertility and sperm freezability in a species. Knowledge of the sperm characteristics of the ejaculate and the morphometric descriptors is necessary to effectively develop sperm cryopreservation. The aim of the current study was to provide a general description of the sperm from two falcon species (Peregrine falcon Falco peregrinus peregrinus/brookei and Gyrfalcon Falco rusticolus) including immature sperm, sperm head morphometric descriptors, and the existence of mature sperm subpopulations...
August 2017: Theriogenology
https://www.readbyqxmd.com/read/28601160/sperm-collection-by-transrectal-ultrasound-guided-massage-of-the-accessory-sex-glands-is-less-stressful-than-electroejaculation-without-altering-sperm-characteristics-in-conscious-goat-bucks
#16
Silvia Abril-Sánchez, Aline Freitas-de-Melo, Florencia Beracochea, Juan Pablo Damián, Julia Giriboni, Julián Santiago-Moreno, Rodolfo Ungerfeld
In anesthetized non-domestic ruminants transrectal ultrasound-guided massage of the accessory sex glands (TUMASG) is an alternative method to collect semen slightly less stressful than electroejaculation (EE). However, some sperm characteristics are better when semen is collected with EE than with TUMASG. As anesthesia reduces the response to stressors, the advantages of TUMASG may be reduced in anesthetized animals, and thus, TUMASG may be even more advantageous in conscious animals. Therefore, the aim of the present study was to compare the stress response and the characteristics of the sperm collected with TUMASG and EE in conscious goat bucks...
August 2017: Theriogenology
https://www.readbyqxmd.com/read/28601155/boar-genotype-as-a-factor-shaping-age-related-changes-in-semen-parameters-and-reproduction-longevity-simulations
#17
Damian Knecht, Anna Jankowska-Mąkosa, Kamil Duziński
The aim of this study was a detailed analysis of the boar genotypes used in AI stations with an indication of their production capacity, including age and a precise analysis of their culling time and reason. The study included 334 boars: 81 Polish Large White (PLW), 108 Polish Landrace (PL), 49 Pietrain (P), 56 Duroc × Pietrain (D × P) and 40 Hampshire × Pietrain (H × P). Semen volume, spermatozoa concentration, total number of spermatozoa, number of motile spermatozoa, and number of insemination doses were analyzed...
August 2017: Theriogenology
https://www.readbyqxmd.com/read/28601154/spermatozoal-transcripts-expression-levels-are-predictive-of-semen-quality-and-conception-rate-in-bulls-bos-taurus
#18
Sivashanmugam Parthipan, Sellappan Selvaraju, Lakshminarayana Somashekar, Arunachalam Arangasamy, Muniandy Sivaram, Janivara Parameswaraiah Ravindra
Spermatozoal transcripts expression levels could be used to assess fertility potential of a male. The objective of the present study was to elucidate the predictive ability of the expression levels of growth, apoptosis and homeostasis regulating transcripts on sperm functions and fertility. The expression levels of spermatozoal RNA isolated from the neat semen samples were related to the good (discarded ejaculate, <25%; n = 7) and poor (discarded ejaculate, >40%, n = 6) quality semen producer and bulls (n = 12) with known conception rate...
August 2017: Theriogenology
https://www.readbyqxmd.com/read/28599293/dysregulation-of-an-x-linked-primate-specific-epididymal-microrna-cluster-in-unexplained-asthenozoospermia
#19
Xingrong Qing, Jian Shi, Tingting Dong, Chunlin Wu, Lian Hu, Honggang Li
Asthenoszoopermia, characterized by reduced sperm motility, is one of the primary forms of male infertility. Whereas most cases were diagnosed into unexplained asthenozoospermia (UA) because the etiology cannot be identified. In animal models, epigenetic dysregulation in epididymis can impair sperm maturation and result in asthenozoospermia. However, researches of epididymal epigenetic regulation on humans are impeded by the difficulty in obtaining epididymal tissues. We previously identified cell-free seminal microRNAs predominately derived from epididymis in human ejaculate...
May 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28597829/urogenital-infection-as-a-risk-factor-for-male-infertility
#20
Hans-Christian Schuppe, Adrian Pilatz, Hamid Hossain, Thorsten Diemer, Florian Wagenlehner, Wolfgang Weidner
BACKGROUND: Infections of the genital tract are considered common causes of male fertility disorders, with a prevalence of 6-10%. Most of the affected men are asymptomatic. The diagnostic evaluation is based mainly on laboratory testing. Inconsistent diagnostic criteria have been applied to date, and this may explain the controversial debate about the role of infection and inflammation in the genital tract as a cause of infertility. The risk of an irreversible fertility disorder should not be underestimated...
May 12, 2017: Deutsches Ärzteblatt International
keyword
keyword
114827
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"