Pubmed du 09/12/09

Pubmed du jour

2009-12-09 12:03:50

1. Gau SS, Chou MC, Lee JC, Wong CC, Chou WJ, Chen MF, Soong WT, Wu YY. {{Behavioral problems and parenting style among Taiwanese children with autism and their siblings}}. {Psychiatry Clin Neurosci};2009 (Nov 24)

Aims: The purpose of the present study was to investigate the behavioral problems and parenting style among children with autism and their siblings in an ethnic Chinese population. Methods: A total of 151 children with DSM-IV autistic disorder, aged 3-12, 134 siblings without autism, and 113 normally developing controls were recruited. Both parents reported their parenting styles and psychological status and mothers also reported children’s behavioral problems. Results: Children with autism had significantly more severe behavioral problems and obtained less affection and more overprotection and authoritarian controlling from their parents than the other two groups. Compared to the controls, unaffected siblings showed some behavioral problems, and obtained less maternal care. Withdrawal and attention, social, and thought problems were the most associated behavioral syndromes to distinguish children with autism from those without. Conclusions: In addition to children with autism, who have a wide range of behavioral problems and impaired parent-child interactions, their siblings may be at risk for such problems.

2. Goldson E. {{Autism: an update}}. {Adv Pediatr};2009;56(1):187-201.

3. Gordon Bell J, Miller D, Macdonald DJ, Mackinlay EE, Dick JR, Cheseldine S, Boyle RM, Graham C, O’Hare AE. {{The fatty acid compositions of erythrocyte and plasma polar lipids in children with autism, developmental delay or typically developing controls and the effect of fish oil intake}}.{ Br J Nutr};2009 (Dec 9):1-8.

The erythrocyte and plasma fatty acid compositions of children with autism were compared in a case-control study with typically developing (TD) children and with children showing developmental delay (DD). Forty-five autism subjects were age-matched with TD controls and thirty-eight with DD controls. Fatty acid data were compared using paired t tests. In addition, blood fatty acids from treatment-naive autism subjects were compared with autism subjects who had consumed fish oil supplements by two-sample t tests. Relatively few differences were seen between erythrocyte fatty acids in autism and TD subjects although the former had an increased arachidonic acid (ARA):EPA ratio. This ratio was also increased in plasma samples from the same children. No changes in n-3 fatty acids or ARA:EPA ratio were seen when comparing autism with DD subjects but some SFA and MUFA were decreased in the DD subjects, most notably 24 : 0 and 24 : 1, which are essential components of axonal myelin sheaths. However, if multiple comparisons are taken into account, and a stricter level of significance applied, most of these values would not be significant. Autism subjects consuming fish oil showed reduced erythrocyte ARA, 22 : 4n-6, 22 : 5n-6 and total n-6 fatty acids and increased EPA, 22 : 5n-3, 22 : 6n-3 and total n-3 fatty acids along with reduced n-6:n-3 and ARA:EPA ratios. Collectively, the autism subjects did not have an underlying phospholipid disorder, based on erythrocyte fatty acid compositions, although the increased ARA:EPA ratio observed suggested that an imbalance of essential highly unsaturated fatty acids may be present in a cohort of autism subjects.

4. Wirojanan J, Jacquemont S, Diaz R, Bacalman S, Anders TF, Hagerman RJ, Goodlin-Jones BL. {{The efficacy of melatonin for sleep problems in children with autism, fragile X syndrome, or autism and fragile X syndrome}}. {J Clin Sleep Med};2009 (Apr 15);5(2):145-150.

STUDY OBJECTIVE: To determine the efficacy of melatonin on sleep problems in children with autistic spectrum disorder (ASD) and fragile X syndrome (FXS). METHODS: A 4-week, randomized, double blind, placebo-controlled, crossover design was conducted following a 1-week baseline period. Either melatonin, 3 mg, or placebo was given to participants for 2 weeks and then alternated for another 2 weeks. Sleep variables, including sleep duration, sleep-onset time, sleep-onset latency time, and the number of night awakenings, were recorded using an Actiwatch and from sleep diaries completed by parents. All participants had been thoroughly assessed for ASD and also had DNA testing for the diagnosis of FXS. RESULTS: Data were successfully obtained from the 12 of 18 subjects who completed the study (11 males, age range 2 to 15.25 years, mean 5.47, SD 3.6). Five participants met diagnostic criteria for ASD, 3 for FXS alone, 3 for FXS and ASD, and 1 for fragile X premutation. Eight out of 12 had melatonin first. The conclusions from a nonparametric repeated-measures technique indicate that mean night sleep duration was longer on melatonin than placebo by 21 minutes (p = .02), mean sleep-onset latency was shorter by 28 minutes (p = .0001), and mean sleep-onset time was earlier by 42 minutes (p = .02). CONCLUSION: The results of this study support the efficacy and tolerability of melatonin treatment for sleep problems in children with ASD and FXS.