Epilepsy can be hereditary. Here is some information about epilepsy and genetics. (chromosome bands). I've also listed some other conditions related to those chromosome bands.
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4p15 | epilepsy, partial, w pericentral spikes | (gene locus: epps)
4p15.3-p16.1 | bipolar disorder
4p16-p15.2 | systemic lupus erythematosus | (gene locus: sleb3)
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10q25.3-q26.1 | epilepsy | (gene locus: emx2)
10q23.3-q24.1 | partial epilepsy | (gene locus: ept)
10q24 | partial epilepsy w. Auditory features | (gene locus: ept)
10q24-q26 | adhd | (adra2 a2-adrenergic receptor)
10q26 | bipolar disorder (susceptibility)
10q26 | schizophrenia
10q24.3 | pcos | (gene locus: cyp17)
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15q13-14 | juvenile myoclonic epilepsy | (gene locus: chrna7)
15q11-q13 | angelman ayndrome, autism, autistic/asperger savant skills, epilepsy, bipolar disorder | (gaba-a receptor beta3 and alpha5 subunit gene cluster on chromosome)
15q13-14 | schizophrenia | (gene locus: chrna7)
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16p13 | epilepsy,myoclonic,infantile | (gene locus: eim)
16p13.3 | tuberous sclerosis 2* | (gene locus: tsc2)
*tsc2 can include:epilepsy, autism, rosacea, renal & cardiac problems
16p13.3 | bipolar affective disorder | (gene locus: sstr5)
16p13.3 | systemic lupus erythematosus
16p13 | attention deficit-hyperactivity disorder | (gene locus: adhd)
16p13.3-p13.12 | polycystic kidney disease, pkd1 adult type I | (gene locus: pkd)
16p13.3 | pkd, infantile severe, with tuberous sclerosis | (gene locus: pkdts)
16p13-p12 | pseudohypoaldosteronism, type I | (gene locus: scnn1b)
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19p13.1 | generalized and partial epilepsy | (gene locus: gefs)
19p13.1 | celiac disease | (gene locus: d19s899)
19p13.1 | rheumatoid arthritis | (il12rb1/interleukin 12 receptor, beta 1)
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22q11-q12 | epilepsy, partial, with variable foci | (gene locus: fpevf)
22q11.2 deletion | bipolar; mixed state & rapid cycling | (gene locus: grk3)
22q11.2 | schizophrenia, susceptibility to
22q11-13 | schizophrenia, susceptibility to
22q11.21 | leukemia, chronic myeloid
22q11.21 | leukemia, acute lymphocytic
22q13.1 | autism, succinylpurinemic
sources:
http://www.Gene.Ucl.Ac.Uk/public-files/nom
en/
http://www.Gene.Ucl.Ac.Uk/public-files/nom
en/monthly-updates/
http://www.Ncbi.Nlm.Nih.Gov/htbin-post/omi
m/getmap?
http://www.Cib.Nig.Ac.Jp/dda/backup/tendo/
genemap.Html
http://www.Mad-cow.Org/00/genbrow_table_co
l.Html
http://www.Isat.Jmu.Edu/users/klevicca/neu
roconn/genetable.Html
http://www.Chr7.Org/tableview.Asp?Table=di
seasegenes.Tab
http://genecards.Weizmann.Ac.Il/geneloc/