M1AP

gene
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Also known as D6Mm5eSPATA37

Summary

M1AP (meiosis 1 associated protein, HGNC:25183) is a protein-coding gene on chromosome 2p13.1, encoding Meiosis 1 arrest protein (Q8TC57). Required for meiosis I progression during spermatogenesis.

This gene encodes a protein that is likely to function in progression of meiosis. A similar protein in mouse plays a role in gametogenesis in both sexes. Alternate splicing results in multiple transcript variants encoding different isoforms.

Source: NCBI Gene 130951 — RefSeq curated summary.

At a glance

  • Gene–disease (curated): spermatogenic failure 48 (Strong, GenCC)
  • GWAS associations: 1
  • Clinical variants (ClinVar): 105 total — 2 pathogenic, 2 likely-pathogenic
  • Phenotypes (HPO): 6
  • MANE Select transcript: NM_001321739

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:25183
Approved symbolM1AP
Namemeiosis 1 associated protein
Location2p13.1
Locus typegene with protein product
StatusApproved
AliasesD6Mm5e, SPATA37
Ensembl geneENSG00000159374
Ensembl biotypeprotein_coding
OMIM619098
Entrez130951

Gene structure

Transcript identifiers

Ensembl transcripts: 11 — 6 protein_coding, 4 protein_coding_CDS_not_defined, 1 nonsense_mediated_decay

ENST00000290536, ENST00000409585, ENST00000421985, ENST00000422394, ENST00000438226, ENST00000464686, ENST00000478437, ENST00000485997, ENST00000536235, ENST00000924975, ENST00000924976

RefSeq mRNA: 4 — MANE Select: NM_001321739 NM_001281295, NM_001281296, NM_001321739, NM_138804

CCDS: CCDS33229, CCDS62941

Canonical transcript exons

ENST00000421985 — 11 exons

ExonStartEnd
ENSE000018062267464826574648330
ENSE000019137577455788374558874
ENSE000025328897455969874559709
ENSE000034781377457543874575579
ENSE000034812487457645674576618
ENSE000035032357456221774562423
ENSE000035564987456015174560291
ENSE000035603217460705574607223
ENSE000036524367464003674640327
ENSE000036697167458167474581847
ENSE000037870187461496474615149

Expression profiles

Bgee: expression breadth ubiquitous, 154 present calls, max score 85.51.

FANTOM5 (CAGE): breadth broad, TPM avg 0.5860 / max 31.7260, expressed in 259 samples.

FANTOM5 promoters (3 alternative TSS)

Promoter IDTPM avgSamples expressed
292550.3331122
292570.1895110
292560.063426

Top tissues by expression

243 total, by Bgee expression score (0-100, higher = more expressed):

TissueAnatomy IDExpression scoreQuality
primordial germ cell in gonadCL:0000670 ∩ UBERON:000099185.51gold quality
male germ line stem cell (sensu Vertebrata) in testisCL:0000089 ∩ UBERON:000047384.41gold quality
bone marrow cellCL:000209276.12gold quality
monocyteCL:000057671.74gold quality
leukocyteCL:000073871.61gold quality
right testisUBERON:000453471.00gold quality
left testisUBERON:000453370.63gold quality
testisUBERON:000047370.54gold quality
olfactory segment of nasal mucosaUBERON:000538668.44gold quality
granulocyteCL:000009467.22gold quality
islet of LangerhansUBERON:000000666.68gold quality
prefrontal cortexUBERON:000045166.11gold quality
right uterine tubeUBERON:000130265.56gold quality
adenohypophysisUBERON:000219665.12gold quality
right lobe of thyroid glandUBERON:000111964.35gold quality
bone marrowUBERON:000237162.82gold quality
subcutaneous adipose tissueUBERON:000219062.61gold quality
C1 segment of cervical spinal cordUBERON:000646962.28gold quality
pituitary glandUBERON:000000761.91gold quality
right lungUBERON:000216761.88gold quality
left lobe of thyroid glandUBERON:000112061.27gold quality
amygdalaUBERON:000187661.18gold quality
sural nerveUBERON:001548861.15silver quality
thyroid glandUBERON:000204661.14gold quality
smooth muscle tissueUBERON:000113560.82gold quality
bloodUBERON:000017860.72gold quality
Brodmann (1909) area 9UBERON:001354060.66gold quality
omental fat padUBERON:001041460.59gold quality
peritoneumUBERON:000235860.54gold quality
spinal cordUBERON:000224060.32gold quality

Single-cell (SCXA)

Detected in 1 experiment(s), a significant marker in 0.

ExperimentMarker?Max mean expression
E-ANND-3no4.18

Regulation

Is transcription factor: no

miRNA regulators (miRDB)

45 targeting M1AP, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):

miRNAMax scoreAvg scoremiRNA target_count
HSA-MIR-4795-3P100.0074.624024
HSA-MIR-4682100.0068.891258
HSA-MIR-30A-5P100.0076.313233
HSA-MIR-30B-5P100.0076.293248
HSA-MIR-30C-5P100.0076.293248
HSA-MIR-30D-5P100.0076.323233
HSA-MIR-30E-5P100.0076.323242
HSA-MIR-4425100.0067.591049
HSA-MIR-126-5P100.0072.713180
HSA-MIR-3934-3P99.7665.511351
HSA-MIR-4666B99.6468.691282
HSA-MIR-150-3P99.4370.51920
HSA-MIR-580-5P99.2870.941776
HSA-MIR-491-5P99.1365.981468
HSA-MIR-474499.0169.911581
HSA-MIR-511-5P98.9770.942268
HSA-MIR-520G-3P98.9167.381914
HSA-MIR-520H98.9167.381914
HSA-MIR-224-3P98.9168.421815
HSA-MIR-522-3P98.9168.561817
HSA-MIR-412-3P98.8666.89712
HSA-MIR-6754-3P98.8466.60889
HSA-MIR-76098.8166.651392
HSA-MIR-3135B98.6165.331470
HSA-MIR-318898.5865.60878
HSA-MIR-6818-3P98.5668.231307
HSA-MIR-366898.5268.76951
HSA-MIR-5089-5P98.4566.061388
HSA-MIR-48498.1666.921074
HSA-MIR-3155A98.1666.09965

Literature-anchored findings (GeneRIF, showing 2)

  • An M1AP homozygous splice-site mutation associated with severe oligozoospermia in a consanguineous family. (PMID:32017041)
  • Structural analysis of M1AP variants associated with severely impaired spermatogenesis causing male infertility. (PMID:35341049)

Cross-species orthologs

3 orthologs

OrganismSymbolGene ID
danio_reriom1apENSDARG00000099485
mus_musculusM1apENSMUSG00000030041
rattus_norvegicusM1apENSRNOG00000007288

Protein

Protein identifiers

Meiosis 1 arrest proteinQ8TC57 (reviewed: Q8TC57)

Alternative names: Meiosis 1-arresting protein, Meiosis 1-associated protein, Spermatogenesis-associated protein 37

All UniProt accessions (3): Q8TC57, C9JPR9, F8WEA5

UniProt curated annotations — full annotation on UniProt →

Function. Required for meiosis I progression during spermatogenesis.

Subcellular location. Cytoplasm.

Disease relevance. Spermatogenic failure 48 (SPGF48) [MIM:619108] An autosomal recessive infertility disorder caused by spermatogenesis defects resulting in non-obstructive azoospermia. The disease may be caused by variants affecting the gene represented in this entry.

Isoforms (4)

UniProt IDNamesCanonical?
Q8TC57-11yes
Q8TC57-22
Q8TC57-33
Q8TC57-44

RefSeq proteins (4): NP_001268224, NP_001268225, NP_001308668, NP_620159 (=MANE)

Domains & families (InterPro)

IDNameType
IPR033587M1APFamily

UniProt features (16 total): sequence variant 7, splice variant 5, chain 1, region of interest 1, sequence conflict 1, compositionally biased region 1

Structure

Experimental structures (PDB)

0 structures.

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-Q8TC57-F174.030.44

Function

Pathways and Gene Ontology

Reactome pathways

0 pathways

MSigDB gene sets: 79 (showing top): GSE45365_NK_CELL_VS_CD8A_DC_DN, GSE45365_NK_CELL_VS_CD11B_DC_UP, GOBP_MEIOTIC_CHROMOSOME_SEGREGATION, MODULE_511, IVANOVA_HEMATOPOIESIS_MATURE_CELL, GOBP_CHROMOSOME_SEPARATION, GOBP_MALE_GAMETE_GENERATION, GOBP_ORGANELLE_FISSION, GOBP_MEIOTIC_CHROMOSOME_SEPARATION, GOBP_FEMALE_GAMETE_GENERATION, GOBP_DEVELOPMENTAL_PROCESS_INVOLVED_IN_REPRODUCTION, GOBP_MEIOTIC_CELL_CYCLE_PROCESS, GOBP_NUCLEAR_CHROMOSOME_SEGREGATION, GOBP_MEIOTIC_CELL_CYCLE, MARSON_BOUND_BY_FOXP3_STIMULATED

GO Biological Process (7): chromatin organization (GO:0006325), RNA processing (GO:0006396), meiosis I (GO:0007127), spermatogenesis (GO:0007283), female gamete generation (GO:0007292), cell differentiation (GO:0030154), male meiosis chromosome separation (GO:0051308)

GO Molecular Function (2): identical protein binding (GO:0042802), protein binding (GO:0005515)

GO Cellular Component (2): cytoplasm (GO:0005737), membrane (GO:0016020)

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
cellular anatomical structure2
cellular component organization1
gene expression1
RNA biosynthetic process1
primary metabolic process1
meiotic telophase I1
meiosis I cell cycle process1
meiotic nuclear division1
developmental process involved in reproduction1
male gamete generation1
gamete generation1
cellular developmental process1
male meiosis chromosome segregation1
male meiotic nuclear division1
meiotic chromosome separation1
protein binding1
binding1
intracellular anatomical structure1

Protein interactions and networks

STRING

764 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
M1APSTAG3Q9UJ98584
M1APFBXO47Q5MNV8578
M1APMEIOCA2RUB1558
M1APMEI1Q5TIA1558
M1APSTPG2Q8N412557
M1APSHOC1Q5VXU9545
M1APADAD2Q8NCV1516
M1APPRDM9Q9NQV7465
M1APRAD21L1Q9H4I0464
M1APCCDC142Q17RM4460
M1APOR5K3A6NET4447
M1APHAUS8Q9BT25437
M1APSMC1BQ8NDV3429
M1APTEX38Q6PEX7420
M1APLRRC42Q9Y546416

IntAct

56 interactions, top by confidence:

ABTypeScore
M1APM1APpsi-mi:“MI:0915”(physical association)0.670
CRXM1APpsi-mi:“MI:0915”(physical association)0.670
M1APTRIP13psi-mi:“MI:0915”(physical association)0.560
M1APPOLR3GLpsi-mi:“MI:0915”(physical association)0.560
M1APPLEKHA2psi-mi:“MI:0915”(physical association)0.560
BAHD1M1APpsi-mi:“MI:0915”(physical association)0.560
SIAH1M1APpsi-mi:“MI:0915”(physical association)0.560
GOLGA6L9M1APpsi-mi:“MI:0915”(physical association)0.560
CWF19L2M1APpsi-mi:“MI:0915”(physical association)0.560
OTX2M1APpsi-mi:“MI:0915”(physical association)0.560
LMNB1M1APpsi-mi:“MI:0915”(physical association)0.560
OTX1M1APpsi-mi:“MI:0915”(physical association)0.560
ZNF740M1APpsi-mi:“MI:0915”(physical association)0.560
UBL3M1APpsi-mi:“MI:0915”(physical association)0.560
DESM1APpsi-mi:“MI:0915”(physical association)0.560
NPKPNA6psi-mi:“MI:0914”(association)0.350
ATG16L1ESYT2psi-mi:“MI:0914”(association)0.350
KLHL34IFT56psi-mi:“MI:0914”(association)0.350
AMZ1IFT56psi-mi:“MI:0914”(association)0.350
POLR3GLM1APpsi-mi:“MI:0915”(physical association)0.000
M1APPLEKHA2psi-mi:“MI:0915”(physical association)0.000
M1APM1APpsi-mi:“MI:0915”(physical association)0.000
M1APBAHD1psi-mi:“MI:0915”(physical association)0.000
M1APSIAH1psi-mi:“MI:0915”(physical association)0.000

BioGRID (19): M1AP (Two-hybrid), M1AP (Two-hybrid), M1AP (Two-hybrid), M1AP (Two-hybrid), M1AP (Two-hybrid), M1AP (Two-hybrid), M1AP (Two-hybrid), M1AP (Two-hybrid), M1AP (Two-hybrid), M1AP (Two-hybrid), M1AP (Two-hybrid), M1AP (Two-hybrid), OTX2 (Two-hybrid), PLEKHA2 (Two-hybrid), DES (Two-hybrid)

ESM2 similar proteins: A1A4J7, A2A9C3, A2BID5, B1WC10, E7FAW3, E7FCN8, O02696, O15360, O75153, O75800, O95248, Q08D69, Q1JPG0, Q3U6Q4, Q499Q5, Q5BLE2, Q5SW28, Q5SW45, Q5T011, Q5U1Z0, Q5U249, Q5UE93, Q5ZIB8, Q6AXZ5, Q6GLY5, Q6GR21, Q6PGF3, Q6ZNJ1, Q6ZQA0, Q7L4E1, Q8BK03, Q8BM55, Q8BMG7, Q8C3S2, Q8CJF7, Q8ND04, Q8QZV7, Q8TC57, Q8VDR9, Q8VE18

Diamond homologs: Q8TC57, Q9Z0E1

SIGNOR signaling

0 interactions.

Disease & clinical

Clinical variants and AI predictions

ClinVar

105 variants total. Per-class counts are floors (≥ shown; pagination cap):

ClassificationCount (floor)
Pathogenic2
Likely pathogenic2
Uncertain significance82
Likely benign9
Benign1

Top pathogenic / likely-pathogenic (4)

Variant IDHGVSClassification
3061751NM_001321739.2(M1AP):c.1073_1074+10delPathogenic
870128NM_001321739.2(M1AP):c.1435-1G>APathogenic
4845729NM_001321739.2(M1AP):c.932+1G>ALikely pathogenic
4845843NM_001321739.2(M1AP):c.13C>T (p.Arg5Ter)Likely pathogenic

SpliceAI

1695 predictions. Top by Δscore:

VariantEffectΔscore
2:74560288:TGCT:Tacceptor_gain1.0000
2:74560290:CT:Cacceptor_gain1.0000
2:74560292:C:CCacceptor_gain1.0000
2:74576442:C:Adonor_gain1.0000
2:74576454:A:ACdonor_gain1.0000
2:74576455:C:CCdonor_gain1.0000
2:74576615:CACA:Cacceptor_gain1.0000
2:74576616:ACACT:Aacceptor_loss1.0000
2:74576617:CA:Cacceptor_gain1.0000
2:74576618:ACT:Aacceptor_loss1.0000
2:74576619:C:CCacceptor_gain1.0000
2:74576620:T:Cacceptor_loss1.0000
2:74581672:A:ACdonor_gain1.0000
2:74581673:C:CCdonor_gain1.0000
2:74640031:CTTA:Cdonor_loss1.0000
2:74640032:TTACC:Tdonor_loss1.0000
2:74640033:TAC:Tdonor_loss1.0000
2:74640325:CAC:Cacceptor_gain1.0000
2:74560145:CGGTA:Cdonor_loss0.9900
2:74560146:GGTAC:Gdonor_loss0.9900
2:74560147:GTA:Gdonor_loss0.9900
2:74560148:TACC:Tdonor_loss0.9900
2:74560149:A:AGdonor_loss0.9900
2:74560287:ATGCT:Aacceptor_gain0.9900
2:74560291:TC:Tacceptor_loss0.9900
2:74560293:T:Aacceptor_loss0.9900
2:74575576:AGCCC:Aacceptor_gain0.9900
2:74575577:GCCCT:Gacceptor_gain0.9900
2:74575578:CC:Cacceptor_gain0.9900
2:74575579:CC:Cacceptor_gain0.9900

AlphaMissense

916 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
2:74640081:A:CS65R0.996
2:74640081:A:TS65R0.996
2:74640083:T:GS65R0.996
2:74640142:A:GL45P0.986
2:74615035:C:GG119R0.977
2:74615035:C:TG119R0.977
2:74640202:A:GL25P0.976
2:74615034:C:TG119E0.974
2:74615035:C:AG119W0.972
2:74640046:A:GL77P0.972
2:74640146:C:GA44P0.968
2:74640154:A:GL41P0.968
2:74640205:A:GL24P0.964
2:74640082:C:AS65I0.961
2:74615124:A:GL89S0.960
2:74640040:A:GF79S0.960
2:74615046:G:TA115E0.959
2:74640176:A:GW34R0.959
2:74640176:A:TW34R0.959
2:74640051:G:CC75W0.958
2:74640202:A:CL25R0.957
2:74615103:A:GL96P0.956
2:74640053:A:GC75R0.954
2:74615031:A:GL120P0.953
2:74640145:G:TA44D0.949
2:74640077:A:CY67D0.947
2:74640085:A:GF64S0.947
2:74640082:C:TS65N0.945
2:74615043:A:TV116E0.944
2:74640202:A:TL25H0.944

dbSNP variants (sampled 300 via entrez): RS1000039060 (2:74603320 T>G), RS1000053489 (2:74623927 T>C), RS1000059030 (2:74585966 CTTG>C), RS1000127390 (2:74584666 A>G), RS1000221941 (2:74584811 T>A), RS1000223025 (2:74637427 A>T), RS1000233625 (2:74638830 G>T), RS1000236398 (2:74630359 T>C), RS1000239173 (2:74578830 G>A), RS1000240289 (2:74616558 A>G), RS1000319307 (2:74563965 C>G), RS1000356694 (2:74591382 T>C), RS1000406904 (2:74577414 A>C), RS1000422956 (2:74598317 G>T), RS1000482834 (2:74630502 G>T)

Disease associations

OMIM: gene MIM:619098 | disease phenotypes: MIM:619108

GenCC curated gene-disease

DiseaseClassificationInheritance
spermatogenic failure 48StrongAutosomal recessive

Mondo (2): spermatogenic failure 48 (MONDO:0030846), male infertility (MONDO:0005372)

Orphanet (1): Male infertility with azoospermia or oligozoospermia due to single gene mutation (Orphanet:399805)

HPO phenotypes

6 total (6 of 6 shown, HPO-id order):

HPOTerm
HP:0000007Autosomal recessive inheritance
HP:0000027Azoospermia
HP:0000798Oligozoospermia
HP:0003251Male infertility
HP:0003581Adult onset
HP:0031038Spermatogenesis maturation arrest

GWAS associations

1 associations (top):

StudyTraitp-value
GCST010002_394Refractive error2.000000e-11

MeSH disease descriptors (1)

DescriptorNameTree numbers
D007248Infertility, MaleC12.100.500.430; C12.100.750.700; C12.200.294.430

Drugs & pharmacology

Drug and pharmacology data

Is drug target: no

PharmGKB: 1 entry (VIP=true, CPIC=false)

CTD chemical–gene interactions

13 total (human), top 13 by PubMed support.

ChemicalActions (top 5)PubMed papers
potassium chromate(VI)increases expression, affects cotreatment, decreases expression2
triphenyl phosphateaffects expression1
bisphenol Aincreases expression1
epigallocatechin gallateaffects cotreatment, decreases expression1
di-n-butylphosphoric acidaffects expression1
chromium hexavalent ionaffects expression1
bisphenol Sincreases methylation1
Benzo(a)pyrenedecreases methylation1
Formaldehydeaffects response to substance1
Phthalic Acidsdecreases methylation1
Vanadatesdecreases expression1
Cadmium Chloridedecreases expression1
Genisteindecreases expression1

Clinical trials (associated diseases)

125 trials via MONDO — disease-level, not drug-specific.

TrialPhaseStatusTitle
NCT02202382PHASE4COMPLETEDEffects of Korean Red Ginseng on Male Infertility
NCT02204826PHASE4COMPLETEDEffects of Korean Red Ginseng on Semen Parameters in Male Infertility Patients: a Randomized, Placebo-controlled, Double-blind Clinical Study
NCT03802864PHASE4COMPLETEDPost-operative Pain Control of Testicular Sperm Extraction Using Liposomal Bupivacaine
NCT06100432PHASE4ACTIVE_NOT_RECRUITINGEffect of Eurycoma Longifolia (DLBS5055) and Multivitamins (Vitamin C+Vitamin E+ β-carotene) for Infertile Males
NCT07523022PHASE4ENROLLING_BY_INVITATIONComparison of the Effect of Gonadotropin and Clomiphene Citrate Treatment on Sperm Parameters and the Outcome of Assisted Reproductive Procedures in Subfertile Men Based on the APHRODITE Groups
NCT00975117PHASE3COMPLETEDSpermotrend in the Treatment of Male Infertility
NCT01407432PHASE3COMPLETEDImpact of Folates in the Care of the Male Infertility
NCT01895816PHASE3COMPLETEDHerbal Tonic Fertile Supplement(ZO2C5)
NCT02605070PHASE3TERMINATEDPilot Study on the Effects of FSH Treatment on the Epigenetic Characteristics of Spermatozoa in Infertile Patients With Severe Oligozoospermia
NCT07402759PHASE3ACTIVE_NOT_RECRUITINGImpact of tdrd9 Gene Mutations in the Therapeutic Response to L-carnitine in Oligoasthenozoospermic Men
NCT01880086PHASE2COMPLETEDClomiphene Citrate for the Treatment of Low Testosterone Associated With Chronic Opioid Pain Medication Administration
NCT02061384PHASE2COMPLETEDRA-2 13-cis Retinoic Acid (Isotretinoin)
NCT02421887PHASE2COMPLETEDMales, Antioxidants, and Infertility Trial
NCT05200663PHASE2UNKNOWNEfficacy Comparison of Tamoxifen and Tamoxifen With Antioxidants on Semen Quality of Male With Idiopathic Infertility
NCT05290558PHASE2ACTIVE_NOT_RECRUITINGThe Therapeutic Effects of Bu Shen Yi Jing Pill on Semen Quality in Sub Fertile Males: a Randomized Controlled Trial
NCT06091969PHASE2NOT_YET_RECRUITINGSupplementation for Male Subfertility
NCT01595308PHASE1COMPLETEDA Pilot Study to Evaluate the Effect of Pomegranate Juice on Semen Parameters in Healthy Male Volunteers
NCT02122211PHASE1COMPLETEDCholine Dehydrogenase and Sperm Function: Effects of Betaine
NCT02575924PHASE1UNKNOWNInfluence of Culture Media on Clinical Outcomes in Poor Responders or Severe Male Infertility
NCT01304927PHASE2/PHASE3COMPLETEDVitamin D Supplementation and Male Infertility: The CBG-study a Randomized Clinical Trial
NCT02349945PHASE2/PHASE3COMPLETEDFSH Receptor Polymorphism p.N680S and Efficacy of FSH Therapy
NCT05222841PHASE2/PHASE3COMPLETEDThe Effectiveness of Spermotrend Food Supplement in the Treatment of Male Infertility
NCT05616598PHASE2/PHASE3COMPLETEDEffect of New Oral Treatment for Hepatitis C Virus on Seminal Parameters
NCT02025270PHASE1/PHASE2COMPLETEDMSCs For Treatment of Azoospermic Patients
NCT04541459EARLY_PHASE1UNKNOWNValidation of New Devices Against Ambient Electromagnetic Radiation
NCT05792813EARLY_PHASE1UNKNOWNEfficacy and Safety of Linggui Yangyuan Paste in Patients With Male Infertility
NCT06188936EARLY_PHASE1COMPLETEDHome Semen Analysis Tests As a Screening Tool for Fertility Patients
NCT00012480Not specifiedCOMPLETEDEffect of Environmental Exposures on the Egg Fertilizing Ability of Human Sperm
NCT00044369Not specifiedCOMPLETEDRole of the Toxic Metal Cadmium in the Mechanism Producing Infertility With a Varicocele
NCT00119925Not specifiedUNKNOWN‘SPRING’-Study: Subfertility Guidelines: Patient Related Implementation in the Netherlands Among Gynaecologists
NCT00178516Not specifiedCOMPLETEDVitamin E and Male Infertility
NCT00315029Not specifiedCOMPLETEDPatient-Centered Implementation Trial for Single Embryo Transfer
NCT00341120Not specifiedCOMPLETEDGenetic Causes of Male Infertility
NCT00481403Not specifiedCOMPLETEDStudy of Sperm Molecular Factors Implicated in Male Fertility
NCT00548977Not specifiedCOMPLETEDGenetic Studies Spermatogenic Failure
NCT00596739Not specifiedCOMPLETEDA Study of the Pre- and Post-operative Semen Analyses and Reproductive Hormone Levels of Men Undergoing Weight-reduction Surgery
NCT00756561Not specifiedCOMPLETEDHOP-2A - Intratesticular Hormone Levels
NCT00961558Not specifiedTERMINATEDCanadian Varicocelectomy Initiative (CVI): Effects on Male Fertility and Testicular Function of Varicocelectomy
NCT01075334Not specifiedUNKNOWNIs a Carnitine Based Food Supplement (PorimoreTM) for Infertile Men Superior to Folate and Zinc With Regard to Pregnancy Rates in Intrauterine Insemination Cycles?
NCT01178463Not specifiedUNKNOWNSpermatogonial Stem Cells in Azoospermic Patients: a Comparison Between Obstructive and Non-obstructive Azoospermia