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| 1 | Serum 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 | 2021 | Asian Journal of Andrology2021，23，1： | 2 |
| 2 | Hexabenzocoronene model compounds for asphalt fractions:synthesis & characterization显示文摘 | Felaniaina R Hicham F Parviz R | | 0，，： | 1 |
| 3 | Bacterial CpG- DNA and lipopolysaccharides activate Toll - like receptors at distinct cellular compartments 显示文摘 | Parviz AN Hacker H Mark R | 2002 | Eur J Immunol2002，32，7： | 1 |
| 4 | Photocatalytie activi- ty of hydrogenated TiO2 显示文摘 | Leshuk T Parviz R Everett P | 2013 | ACS applied materials&inteoCaces2013，5，6： | 1 |
| 5 | The effect of car bon additives on the mesophase induction period of Athabas ca bitumen 显示文摘 | Thomas G Parviz R Ripudaman M | 2001 | Fuel Processing Technology2001，69，3： | 1 |
| 6 | Control of Plastic shrinkage cracking with specialty cellulose fibers显示文摘 | PARVIZ S SIAVOSH R | 1998 | ACI Materials Journal1998，95，4： | 1 |
| 7 | 显示文摘 | Leshuk T Parviz R Everett P | 2013 | ACS ApplMater In ter2013，5，6： | 1 |
| 8 | Detection of human papillomavirus type 16 and 18 in pathologic samples from patients with cervical cancer by PCR and RFLP methods 显示文摘 | Parviz M Mohammad R Bahram K | 2006 | DARU2006，14，2： | 1 |
| 9 | Fabrica- tion of DLC thin films with improved diamond- like carbon character by the application of exter- nal magnetic field显示文摘 | ALI M PARVIZ K MEHDI R | 2015 | Carbon2015，94，： | 1 |
| 10 | Separation and Preconcentration System Based on Microextraction with Ionic Liquid for Determination of Copper in Water and Food Samples by Stopped-flow Injection Spectrofluorimetry显示文摘 | Mohsen Z Mohammad R G Parviz N | 2011 | Food and Chemical Toxicology2011，49，： | 1 |
| 11 | Experimental and Computational Investigation of Flow and Thermal Behavior of a Mechanical Seal显示文摘 | NoRIAKI PKITA PHILLIPS R L | 1999 | Tribology Transactions1999，42，4： | 1 |
| 12 | Control of plastic shrinkage cracking with specialty cellulose fibers显示文摘 | Parviz S Siavosh R | 1998 | ACI Materials Journal1998，，： | 1 |
| 13 | Sub-second adsorption for sub-nanomolar monitoring of metoclopramide by fast stripping continuous cyclic voltammetry显示文摘 | Parviz N Mohammad R G Parisa M | 2005 | Electrochemistry Communications2005，7，4： | 1 |
| 14 | An adaptive flux observer with online estimation of DC-Link voltage and rotor resistance for VSI-Based induction Motors显示文摘 | Farzadg R S Tooraj A N Parviz J M | 2010 | IEEE Transactions on Power Electronics2010，25，5： | 1 |
| 15 | Photocatalytic activi- ty of hydrogenated TiOa 显示文摘 | Leshuk T Parviz R Everett P | 2013 | ACS Appl Mater Interf2013，5，： | 1 |
| 16 | Evidence of the subperiosteal origin of osteoid osteoma in tubular bones: analysis by CT and MR imaging显示文摘 | Donald R Parviz H | 1998 | AJR1998，170，： | 1 |
| 17 | Experi- mental and Computational Investigation of Flow and Thermal Be- havior of a Mechanical Seal 显示文摘 | Parviz Merati Noriaki Pkita Phillips R L and Jacobs L | 1999 | Tribology Transactions1999，42，4： | 1 |
| 18 | Host (Nano- pores of Zeolite Y)-Guest(Oxovanadium(Ⅳ) Tetradentate Schiff-Base Complexes) Nanocomposite Materials: Synthe- sis, Characterization and Liquid Phase Hydroxylation of Phe- nol with Hydrogen Peroxide 显示文摘 | Masoud S N Mohammad R G Parviz N | 2007 | J Porous Mater2007，14，4： | 1 |
| 19 | Perclorate-selectivemembrane sensors based on two nickel-hexaaza-macrocycle complexes显示文摘 | Mohammad R G Parviz N | 2007 | Sensors and ActuatorsB:Chemical2007，120，2： | 1 |
| 20 | Ultrasensitive flow-injec- tion electrochemical method for determination of histamine in tuna fish samples显示文摘 | Behrouz A Parviz N Mohammad R G | 2010 | Food Research International2010，43，： | 1 |
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