Campylobacter ureolyticus: an emerging gastrointestinal pathogen?

A total of 7194 faecal samples collected over a 1-year period from patients presenting with diarrhoea were screened for Campylobacter spp. using EntericBio(®) , a multiplex-PCR system. Of 349 Campylobacter-positive samples, 23.8% were shown to be Campylobacter ureolyticus, using a combination of 16S rRNA gene analysis and highly specific primers targeting the HSP60 gene of this organism. This is, to the best of our knowledge, the first report of C. ureolyticus in the faeces of patients presenting with gastroenteritis and may suggest a role for this organism as an emerging enteric pathogen.

Predictors of ADHD persistence in girls at 5-year follow-up.

OBJECTIVE: The main aim of this study was to examine the age-dependent remission from ADHD in girls transitioning through childhood into adolescence and early adulthood. METHOD: We conducted a 5-year prospective follow-up study of 123 girls with ADHD and 106 non-ADHD control girls aged between 6 and 17 years at ascertainment. ADHD was considered persistent at follow-up if participants met full diagnostic criteria for DSM-IV ADHD or met residual criteria for DSM-IV ADHD with associated impairment (Global Age Forum [GAF] score < 60). RESULTS: By age 16 years, ADHD was persistent in 71% (95% CI = 61-79%) of girls with ADHD. Participants with persistent ADHD at follow-up had more psychiatric comorbidity, behavior problems, and functional impairment than girls with ADHD in remission. Remitted ADHD, however, continued to be associated with functional impairment relative to non-ADHD controls. Persistence at 5 years was predicted by increased behavioral impairment at baseline. CONCLUSION: This 5-year follow-up suggests that many girls with ADHD experience persistent symptoms and/or functional impairment through late adolescence and into early adulthood.

Family-based genome-wide association scan of attention-deficit/hyperactivity disorder.

OBJECTIVE: Genes likely play a substantial role in the etiology of attention-deficit/hyperactivity disorder (ADHD). However, the genetic architecture of the disorder is unknown, and prior genome-wide association studies (GWAS) have not identified a genome-wide significant association. We have conducted a third, independent, multisite GWAS of DSM-IV-TR ADHD. METHOD: Families were ascertained at Massachusetts General Hospital (MGH; N = 309 trios), Washington University at St. Louis (WASH-U; N = 272 trios), and University of California at Los Angeles (UCLA; N = 156 trios). Genotyping was conducted with the Illumina Human1M or Human1M-Duo BeadChip platforms. After applying quality control filters, association with ADHD was tested with 835,136 SNPs in 735 DSM-IV ADHD trios from 732 families. RESULTS: Our smallest p value (6.7E-07) did not reach the threshold for genome-wide statistical significance (5.0E-08), but one of the 20 most significant associations was located in a candidate gene of interest for ADHD (SLC9A9, rs9810857, p = 6.4E-6). We also conducted gene-based tests of candidate genes identified in the literature and found additional evidence of association with SLC9A9. CONCLUSIONS: We and our colleagues in the Psychiatric GWAS Consortium are working to pool together GWAS samples to establish the large data sets needed to follow-up on these results and to identify genes for ADHD and other disorders.

Adult psychiatric outcomes of girls with attention deficit hyperactivity disorder: 11-year follow-up in a longitudinal case-control study.

OBJECTIVE: Few follow-up studies have been conducted of girls with ADHD, and none have followed girls into adulthood. The authors sought to estimate the prevalence of psychopathology in girls with and without ADHD followed into young adulthood. METHOD: The authors conducted a longitudinal case-control study of 6- to 18-year-old girls with (N=140) and without (N=122) ADHD ascertained from psychiatric and pediatric sources. At the 11-year follow-up, 96 (69%) of the girls with ADHD and 91 (75%) of the comparison girls were reassessed (mean age=22 years). Participants were blindly assessed by structured diagnostic interviews. RESULTS: Lifetime and 1-year risks for all composite categories of psychopathology were significantly greater in girls with ADHD grown up relative to comparison girls; lifetime hazard ratios were 7.2 (95% CI=4.0-12.7) for antisocial disorders, 6.8 (95% CI=3.7-12.6) for mood disorders, 2.1 (95% CI=1.6-2.9) for anxiety disorders, 3.2 (95% CI=2.0-5.3) for developmental disorders, 2.7 (95% CI=1.6-4.3) for addictive disorders, and 3.5 (95% CI=1.6-7.3) for eating disorders. For lifetime psychopathology, all six composite categories remained statistically significant after controlling for other baseline psychopathology. Except for addictive disorders, significant 1-year findings remained significant after controlling for baseline psychopathology. The 1-year prevalences of composite disorders were not associated with lifetime or 1-year use of ADHD medication. CONCLUSION: By young adulthood, girls with ADHD were at high risk for antisocial, addictive, mood, anxiety, and eating disorders. These prospective findings, previously documented in boys with ADHD, provide further evidence for the high morbidity associated with ADHD across the life cycle.

Risk for switch from unipolar to bipolar disorder in youth with ADHD: a long term prospective controlled study.

BACKGROUND: To investigate whether ADHD is a risk factor for switches from unipolar to bipolar disorder over time. METHODS: Data from two large controlled longitudinal family studies of boys and girls with and without ADHD and their siblings were used. Subjects (n=168) were followed prospectively and blindly over an average follow-up period of 7 years. Comparisons were made between youth with unipolar major depression who did and did not switch to full or subthreshold BP-I disorder at the follow-up assessment. Subjects were assessed at baseline and follow-up on multiple domains of functioning. Positive family history of parental psychiatric disorders was also compared between groups. RESULTS: ADHD was associated with a significantly higher risk for switches from unipolar to bipolar disorder (28% versus 6%; z=2.80, p=0.005). In subjects with ADHD, switches from unipolar to bipolar disorder were predicted by baseline comorbid conduct disorder, school behavior problems, and a positive family history of parental mood disorder. LIMITATIONS: Psychosis was an exclusionary criterion in the original ascertainment of the studies of ADHD probands, so we were unable to test this as a predictor of switching to BPD. CONCLUSIONS: ADHD is a risk factor for switches from unipolar to bipolar disorder, and switches could be predicted by the presence of baseline conduct disorder, school behavior problems, and a positive family history of a mood disorder in a parent. These characteristics can aid clinicians in their treatment of youth with MDD.

The long view: how the financial downturn will change health care.

There are five reasons that today's economic downturn will have a much broader impact on U.S. health care than did past recessions: This downturn is likely to be more severe and last longer. Healthcare organizations are experiencing problems from several directions simultaneously. Healthcare organizations entered this downturn more heavily leveraged and more vulnerable. This downturn is notjust a recession, but a major realignment for financing practices. As the realignment occurs and the new financing order sorts itself out, healthcare organizations are not likely to receive the favorable treatment they had in the past.