Four novel coeliac disease regions replicated in an association study of a Swedish-Norwegian family cohort.

Recent genome-wide association studies have identified 1q31 (RGS1), 2q11-12 (IL18RAP), 3p21 (CCR1/CCR3/CCR2), 3q25-26 (IL12A/SCHIP1), 3q28 (LPP), 4q27 (IL2/IL21), 6q25 (TAGAP) and 12q24 (SH2B3) as susceptibility regions for coeliac disease (CD). We have earlier replicated association with the IL2/IL21 region. This study aimed at replicating the remaining regions in a family cohort using the transmission disequilibrium test, which is not prone to population stratification as a source of false-positive results. Nine single nucleotide polymorphisms (SNPs) within these regions were genotyped in 325 Swedish-Norwegian CD families. We found significant associations with the same alleles in the regions 1q31 (rs2816316; P(nc)=0.0060), 3p21 (rs6441961; P(nc)=0.0006), 3q25-26 (rs17810564; P(nc)=0.0316 and rs9811792; P(nc)=0.0434) and 3q28 (rs1464510; P(nc)=0.0037). Borderline, but non-significant, associations were found for rs917997 (IL18RAP), whereas no evidence for association could be obtained for rs13015714 (IL18RAP) or rs1738074 (TAGAP). The lack of replication of the latter SNPs could be because of limited power. rs3184504 (SH2B3) was not analysed because of assay failure. The most significantly associated region, 3p21 (CCR1/CCR3/CCR2), was further analysed by typing of 30 SNPs, with the aim of identifying the causal variant responsible for the initial association. Several SNPs showed association with CD, but none displayed associations stronger than rs6441961, nor did any of them add to the effect initially marked by rs6441961 in a conditional analysis. However, differential effects of rs6441961(*)C carrying haplotypes were indicated, and we thus cannot exclude the possibility that our inability to obtain evidence for multiple independent effects in the CCR1/CCR3/CCR2 gene region was related to a power issue.

An intervention program for university students who have parents with alcohol problems: a randomized controlled trial.

AIM: To study the effects of alcohol and coping intervention among University students who have parents with alcohol problems. METHODS: A total of 82 university students (56 women and 22 men, average age 25) with at least one parent with alcohol problems were included. The students were randomly assigned to one of three programs: (i) alcohol intervention program, (ii) coping intervention program, and (iii) combination program. All programs were manual based and individually implemented during two 2-h sessions, 4 weeks apart. This assessment contained both a face-to-face interview and six self-completion questionnaires; AUDIT, SIP, EBAC, coping with parents' abuse questionnaire, SCL-90 and ISSI. Follow-up interviews were conducted after 1 year. RESULTS: All participants finished the baseline assessment, accepted and completed the intervention, while 95% of the students completed the 12-month follow-up assessment. The two groups that received alcohol intervention improved their drinking pattern significantly more than the group that did not receive alcohol intervention [change of standardized scores -0.27 (CI -0.53 to -0.03)]. The groups receiving coping intervention did not differ from the group not receiving coping intervention concerning their ability to cope with their parents' alcohol problems. Nor did they differ regarding changes in their own mental health or in their social interaction capacity. CONCLUSION: The intervention improved drinking patterns in adult children of alcoholics.