PMID- 10677311 OWN - NLM STAT- MEDLINE DCOM- 20000330 LR - 20240510 IS - 0002-9297 (Print) IS - 1537-6605 (Electronic) IS - 0002-9297 (Linking) VI - 66 IP - 2 DP - 2000 Feb TI - Reproducibility and complications in gene searches: linkage on chromosome 6, heterogeneity, association, and maternal inheritance in juvenile myoclonic epilepsy. PG - 508-16 AB - Evidence for genetic influences in epilepsy is strong, but reports identifying specific chromosomal origins of those influences conflict. One early study reported that human leukocyte antigen (HLA) markers were genetically linked to juvenile myoclonic epilepsy (JME); this was confirmed in a later study. Other reports did not find linkage to HLA markers. One found evidence of linkage to markers on chromosome 15, another to markers on chromosome 6, centromeric to HLA. We identified families through a patient with JME and genotyped markers throughout chromosome 6. Linkage analysis assuming equal male-female recombination probabilities showed evidence for linkage (LOD score 2.5), but at a high recombination fraction (theta), suggesting heterogeneity. When linkage analysis was redone to allow independent male-female thetas, the LOD score was significantly higher (4.2) at a male-female theta of.5,.01. Although the overall pattern of LOD scores with respect to male-female theta could not be explained solely by heterogeneity, the presence of heterogeneity and predominantly maternal inheritance of JME might explain it. By analyzing loci between HLA-DP and HLA-DR and stratifying the families on the basis of evidence for or against linkage, we were able to show evidence of heterogeneity within JME and to propose a marker associated with the linked form. These data also suggest that JME may be predominantly maternally inherited and that the HLA-linked form is more likely to occur in families of European origin. FAU - Greenberg, D A AU - Greenberg DA AD - Mount Sinai School of Medicine, Box 1229, New York, NY 10029, USA. dag@shallot.salad.mssm.edu FAU - Durner, M AU - Durner M FAU - Keddache, M AU - Keddache M FAU - Shinnar, S AU - Shinnar S FAU - Resor, S R AU - Resor SR FAU - Moshe, S L AU - Moshe SL FAU - Rosenbaum, D AU - Rosenbaum D FAU - Cohen, J AU - Cohen J FAU - Harden, C AU - Harden C FAU - Kang, H AU - Kang H FAU - Wallace, S AU - Wallace S FAU - Luciano, D AU - Luciano D FAU - Ballaban-Gil, K AU - Ballaban-Gil K FAU - Tomasini, L AU - Tomasini L FAU - Zhou, G AU - Zhou G FAU - Klotz, I AU - Klotz I FAU - Dicker, E AU - Dicker E LA - eng SI - GENBANK/AF107699 GR - R01 NS037466/NS/NINDS NIH HHS/United States GR - NS27941/NS/NINDS NIH HHS/United States GR - R01 DK031775/DK/NIDDK NIH HHS/United States GR - NS37466/NS/NINDS NIH HHS/United States GR - DK31775/DK/NIDDK NIH HHS/United States GR - R01 MH048858/MH/NIMH NIH HHS/United States GR - R01 NS027941/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Am J Hum Genet JT - American journal of human genetics JID - 0370475 RN - 0 (HLA-D Antigens) SB - IM MH - Alleles MH - Chromosome Mapping/*methods MH - Chromosomes, Human, Pair 6/*genetics MH - Extrachromosomal Inheritance/*genetics MH - Fathers MH - Female MH - Gene Frequency/genetics MH - *Genetic Heterogeneity MH - HLA-D Antigens/genetics MH - Humans MH - Lod Score MH - Male MH - Molecular Sequence Data MH - *Mothers MH - Myoclonic Epilepsy, Juvenile/*genetics MH - Pedigree MH - Recombination, Genetic/genetics MH - Reproducibility of Results PMC - PMC1288104 EDAT- 2000/03/21 09:00 MHDA- 2000/04/01 09:00 PMCR- 2000/08/01 CRDT- 2000/03/21 09:00 PHST- 2000/03/21 09:00 [pubmed] PHST- 2000/04/01 09:00 [medline] PHST- 2000/03/21 09:00 [entrez] PHST- 2000/08/01 00:00 [pmc-release] AID - S0002-9297(07)63425-9 [pii] AID - 991155 [pii] AID - 10.1086/302763 [doi] PST - ppublish SO - Am J Hum Genet. 2000 Feb;66(2):508-16. doi: 10.1086/302763.