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95篇 您的检索式:作者名="Hallak J"
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1Serum vitamin D content is associated with semen|parameters and serum testosterone levels in men显示文摘The present study aimed to evaluate the influence of serum vitamin D levels on semen quality and testosterone levels.This is a crosssectional study conducted at Androscience,Science and Innovation Center in Andrology and High-Complex Clinical and Andrology Laboratory in Sao Paulo,Brazil,with 508 male patients,aged 18-60 years,from 2007 to 2017.Seminal parameters and serum sexual hormones were correlated with serum vitamin D concentrations in 260 men selected by strict selection criteria.Patients were divided into normozoospermic group(NZG,n=124)and a group with seminal abnormalities(SAG,n=136).Evaluation included complete physical examination,past medical history,habits and lifestyle factors,two complete seminal analysis with sperm functional tests,serum levels of 25-hydroxy-vitamin D_(3)(25(OH)VD_(3)),total and free testosterone,luteinizing hormone(LH),follicle-stimulating hormone(FSH),sex hormone-binding globulin(SHBG),total cholesterol,homeostatic model assessment of insulin resistance(HOMA-IR)index,and karyotype.The mean concentration of 25(OH)VD_(3)was significantly lower in the SAG(P<0.001)and positively correlated with all baseline seminal parameters and total testosterone levels.In addition,serum vitamin D_(3)concentration was found to be positively correlated with sperm concentration(β=2.103;P<0.001),total number of spermatozoa with progressive motility(β=2.069;P=0.003),total number of motile spermatozoa(β=2.571;P=0.015),and strict morphology(β=0.056;P=0.006),regardless of other variables.This is the first comparative study to address the issue of serum vitamin D_(3)content between normozoospermic patients and those with sperm abnormalities.It clearly demonstrates a direct and positive relationship between serum vitamin D level and overall semen quality,male reproductive potential,and testosterone levels.Inari M Ciccone Elaine MF Costa Juliana R Pariz Thiago A Teixeira Joel R Drevet Parviz Gharagozloo Robert J Aitken Jorge Hallak 2021Asian Journal of Andrology2021,23,1:2
2Equilibrium demand elasticities across quality segments 显示文摘Coibion O Einav L Hallak J C 2007International Journal of Industrial Organization2007,25,1:1
3Sperm concentration and normal sperm morphology decrease and follicle-stimulating hormone level increases with age显示文摘Pasqualotto FF Sobreiro B P Hallak J 2005BJU Int2005,96,7:1
4Cigarette smoking is related to a decrease in semen volume in a population of fertile men显示文摘Pasqualotto FF Sobreiro BP Hallak J 2006BJU Int2006,97,2:1
5Minocycline benefits negative symptoms in early schizophrenia:a randomised doubleblind placebo-controlled clinical trial in patients on standard treatment显示文摘Chaudhry IB Hallak J Husain N 2012J Psychopharmacol2012,26,:1
6Estimating Cross-Country Differences in Product Quality显示文摘HALLAK J C SCHOTT P K 2011Quarterly Journal of Economics2011,126,1:1
7Electro- myographic analysis of masseter and temporal muscles, bite force, masticatory efficiency in medicated individu- als with schizophrenia and mood disorders compared with healthy controls 显示文摘DE Oliveira R H Hallak J E Siessere S 2014J Oral Rehabil2014,41,6:1
8Induction of spermatogenesis in azoospermic men after varicocele re- pair 显示文摘Pasqualotto F F Lucon A M Hallak J 2003Hum Reprod2003,18,1:1
9Lindsay The Place Identity-Performance relationship among tourism entrepreneurs:A structural equation modeling analysis显示文摘Hallak R Brown G Noel J 0,,01:1
10Rapid improvementof acute schizophrenia symptoms after intravenous sodium nitroprusside :a randomized,double - blind,placebo - controlled trial 显示文摘Hallak JE Maia - de - Oliveira JP Abrao J 2013JAMAPsychiatry2013,70,7:1
11Matrix metalloproteinase inhibition attenuates left ventricular remodelling and dysfunction in a rat model of progressive heart failure显示文摘Peterson J T Hallak H Johnson L 2001Circulation2001,103,18:1
12Cigarette smoking is related to a decrease in semen volume in a population of fertile men 显示文摘Pasqualotto FF Sobreiro BP Hallak J 2006BJU Int2006,97,2:1
13Creatine Kinase as an indicator of sperm quality and maturity in men with oligospermia显示文摘Hallak J Sharma R K Pasqualotto F F 2001Urology2001,58,3:1
14Minocycline benefits negative symptoms in early schizophrenia:a randomised double-blind placebo-controlled clinical trial in patients on standard treatment显示文摘Chaudhry IB Hallak J Husain N 2012J Psychopharmacol2012,26,9:1
15Ripening and dilatation of the unfavourable cervix for induction of labour by a double balloon device:experience with 250 cases显示文摘Atad J Hallak M Ben-David Y 1997Br J Obstet Gynaecol1997,104,1:1
16Arandomized com-parison of prostaglandin E2, oxytocin, and double-balloon devicein inducing labor显示文摘Atad J Hallak M Auslender R 1996Obstet Gynecol1996,87,2:1
17Minocyeline benefits negative symptoms in early schizophrenia: a randomised double- blind placebo-controlled clinical trim in patients on standard treatment 显示文摘Chaudhry IB Hallak J Husain N 2012J Psychopharmacol2012,26,9:1
18Estimating Cross-Country Differences in Product Quality显示文摘Hallak J C Schott P K 2011The Quarterly Journal of Economics2011,126,1:1
19Estimating crosscountry differences in product quality显示文摘Hallak J C Schott P K 2011Quarterly Journal of Economics2011,126,1:1
20Product and Process Productivity:Implications for Quality- Choice and Conditional Exporter Premia显示文摘HALLAK J C SIVADASAN J 2003Journal of International Economics2003,91,1:1
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