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| 2. |
- Betancur, Catalina, et al.
(författare)
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Serotonin transporter gene polymorphisms and hyperserotonemia in autistic disorder
- 2002
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Ingår i: Molecular Psychiatry. - : Springer Science and Business Media LLC. - 1359-4184 .- 1476-5578. ; 7:1, s. 67-71
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Tidskriftsartikel (refereegranskat)abstract
- Previous studies have provided conflicting evidence regarding the association of the serotonin transporter (5-HTT) gene with autism. Two polymorphisms have been identified in the human 5-HTT gene, a VNTR in intron 21 and a functional deletion/insertion in the promoter region (5-HTTLPR) with short and long variants.2 Positive associations of the 5-HTTLPR polymorphism with autism have been reported by two family-based studies, but one found preferential transmission of the short allele3 and the other of the long allele.4 Two subsequent studies failed to find evidence of transmission disequilibrium at the 5-HTTLPR locus.5,6 These conflicting results could be due to heterogeneity of clinical samples with regard to serotonin (5-HT) blood levels, which have been found to be elevated in some autistic subjects.7–9 Thus, we examined the association of the 5-HTTLPR and VNTR polymorphisms of the 5-HTT gene with autism, and we investigated the relationship between 5-HTT variants and whole-blood 5-HT. The transmission/disequilibrium test (TDT) revealed no linkage disequilibrium at either loci in a sample of 96 families comprising 43 trios and 53 sib pairs. Furthermore, no significant relationship between 5-HT blood levels and 5-HTT gene polymorphisms was found. Our results suggest that the 5-HTT gene is unlikely to play a major role as a susceptibility factor in autism.
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| 3. |
- Buitelaar, Jan K, et al.
(författare)
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A prospective, multicenter, open-label assessment of atomoxetine in non-North American children and adolescents with ADHD.
- 2004
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Ingår i: European Child & Adolescent Psychiatry. - : Springer Science and Business Media LLC. - 1018-8827 .- 1435-165X. ; 13:4, s. 249-257
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: The aim of this study was to study treatment response to atomoxetine in a large, multicenter study of non-North American patients with ADHD. METHODS: A total of 604 children and adolescents with ADHD were enrolled in a 10-week open-label trial with atomoxetine prior to randomization to a double-blind relapse prevention phase at 33 sites in the United Kingdom, continental Europe, Israel, South Africa, and Australia. All patients had ADHD symptom severity at least 1.5 standard deviations above United States age and gender norms for their diagnostic subtype as measured by the investigator-scored ADHD Rating Scale (ADHD RS). Outcomes were assessed by analysis of change in the ADHD RS; functional and psychosocial outcomes were assessed using the Child Health Questionnaire (CHQ). RESULTS: At endpoint, ADHD RS total scores decreased by an average of 56.7%, and 69% of patients were rated as having no or minimal symptoms. Significant improvement was observed in psychosocial and functional outcomes. Discontinuations attributed to adverse events were < 4%. CONCLUSION: These open-label data, gathered in an international setting, add to our knowledge of the value of atomoxetine in treating ADHD symptoms, as well as its safety and tolerability.
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| 4. |
- Cederlund, Mats, 1962, et al.
(författare)
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One hundred males with Asperger syndrome: a clinical study of background and associated factors.
- 2004
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Ingår i: Developmental medicine and child neurology. - 0012-1622. ; 46:10, s. 652-60
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Tidskriftsartikel (refereegranskat)abstract
- The objective of this study was to investigate the background and associated factors in a representative group of young males with Asperger syndrome (AS) presenting at a specialized autism clinic. One hundred males aged 5 years 6 months to 24 years 6 months, with a mean age of 11 years 4 months (SD 3y 10mo), who had a clinical diagnosis of AS were included in the study. An in-depth review of their medical records and neuropsychological test data was performed. There was a high rate (51%) of non-verbal learning disability (defined as Verbal IQ more than 15 points higher than Performance IQ), but otherwise there was little or no support for the notion of right-hemisphere brain dysfunction being at the core of the syndrome. There was a very high rate of close relatives with autism spectrum problems, but also high rates of prenatal and perinatal problems, including prematurity and postmaturity. In comparison with general population data, those with AS very often had a combination of genetic and prenatal and perinatal risk factors. Non-verbal learning disability test results applied in about half the group. There was a subgroup of individuals with AS who had macrocephalus. However, there was no support for an association of AS with low body mass index.
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| 5. |
- Dahlgren Sandberg, Annika, 1946, et al.
(författare)
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The Rett Syndrome Complex Communicative Functions in Relation to Developmental Level and Autistic Features
- 2000
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Ingår i: Autism. - : SAGE Publications. - 1362-3613 .- 1461-7005. ; 4:3, s. 249-267
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Tidskriftsartikel (refereegranskat)abstract
- Communicative functions and their relationship with overall developmental level and autistic features were studied in eight young women with disorders in the Rett syndrome complex, three with the classical variant and five with variants with partially preserved/ regained speech. The Vineland Adaptive Behaviour Scales, individual structured observation, and a specially designed structured interview covering early pre-linguistic and linguistic development, current receptive and expressive language and non-verbal communication skills, were used. Autistic features were evaluated in accordance with the DSM-IV. Low levels of communicative abilities and overall functioning were demonstrated. In most cases, the communicative abilities did not reach the level expected on the basis of overall development. Joint attention behaviours and expressions of communicative intent were rare. However, six of the eight subjects showed clear examples of social interaction abilities. ‘Eye pointing’, as distinct from ‘eye communication’, was demonstrated only in a minority of the cases. The level of communicative function at developmental arrest did not predict later language ability. It is suggested that intervention should focus on developing further the joint attention behaviours, intentional communications and communicative functions spontaneously used by individuals with disorders in the Rett syndrome complex.
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| 6. |
- Faraone, Stephen V, et al.
(författare)
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The worldwide prevalence of ADHD: is it an American condition?
- 2003
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Ingår i: World Psychiatry. - 1723-8617. ; 2:2, s. 104-113
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Tidskriftsartikel (refereegranskat)abstract
- Attention-deficit/hyperactivity disorder (ADHD) is a behavioral disorder that affects up to 1 in 20 children in the USA. The predominance of American research into this disorder over the past 40 years has led to the impression that ADHD is largely an American disorder and is much less prevalent elsewhere. This impression was reinforced by the perception that ADHD may stem from social and cultural factors that are most common in American society. However, another school of thought suggested that ADHD is a behavioral disorder common to children of many different races and societies worldwide, but that is not recognized by the medical community, perhaps due to confusion regarding its diagnosis and/or misconceptions regarding its adverse impact on children, their families, and society as a whole. In this article we present the available data, with a view to determining the worldwide prevalence of ADHD. A total of 50 studies were identified from a MEDLINE search for the terms ADHD, ADD, HKD, or attention-deficit/hyperactivity disorder and prevalence combined, for the years 1982 to 2001. 20 were studies in US populations and 30 were in non-US populations. Analysis of these studies suggests that the prevalence of ADHD is at least as high in many non-US children as in US children, with the highest prevalence rates being seen when using DSM-IV diagnoses. Recognition that ADHD is not purely an American disorder and that the prevalence of this behavioral disorder in many countries is in the same range as that in the USA will have important implications for the psychiatric care of children.
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| 7. |
- Gillberg, Christopher, 1950, et al.
(författare)
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Autism and Asperger syndrome: coexistence with other clinical disorders.
- 2000
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Ingår i: Acta Psychiatrica Scandinavica. - : Wiley. - 0001-690X .- 1600-0447. ; 102:5, s. 321-330
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Tidskriftsartikel (refereegranskat)abstract
- Objective: To provide a clinically useful analysis of the extent to which autism and Asperger syndrome coexist with other disorders. Method: Selective review of the literature detailing data pertaining to symptoms and disorders sometimes encountered in connection with autism or Asperger syndrome. Results: A large number of medical conditions, psychiatric disorders and behavioural and motor dyscontrol symptoms are associated with autism and Asperger syndrome. Conclusion: Comorbidity is to be expected in autism spectrum disorders — directly or indirectly. Comorbid conditions may be markers for underlying pathophysiology and suggest a more varied treatment approach. There is a great need for in-depth research into this area, meaning that the exclusion criteria of current diagnostic manuals, i.e. those that rule out a diagnosis of autism in some disorders, and a diagnosis of certain other disorders in autism may have to be revised.
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| 8. |
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| 9. |
- Gillberg, Christopher, 1950, et al.
(författare)
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Co-existing disorders in ADHD -- implications for diagnosis and intervention.
- 2004
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Ingår i: European Child & Adolescent Psychiatry. - : Springer Science and Business Media LLC. - 1018-8827 .- 1435-165X. ; 13 Suppl 1, s. I80-92
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: It is only recently that "comorbidity" in ADHD has come to the forefront as one of the most important aspects of the disorder. It is agreed that, often, these problems are at least as important as ADHD in contributing to the longer term outcome in the individual child. OBJECTIVE: To provide the reader with basic information about clinics and treatment of "comorbidity" in ADHD. METHOD: Review of the empirically based literature. RESULTS: ADHD exists in a surprisingly high frequency together with a broad range of child neuropsychiatric disorders. This is accompanied with many still unresolved treatment problems. CONCLUSION: It would not be appropriate to develop ADHD-services where clinicians would only have expertise in ADHD as such. Anyone working with children, adolescents and adults with ADHD would need to have training in general neuropsychiatry. Further research in this field is urgently needed.
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| 10. |
- Gillberg, Christopher, 1950
(författare)
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Deficits in attention, motor control, and perception: a brief review.
- 2003
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Ingår i: Archives of Disease in Childhood. - 1468-2044. ; 88:10, s. 904-910
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Tidskriftsartikel (refereegranskat)abstract
- The concept of DAMP (deficits in attention, motor control, and perception) has been in clinical use in Scandinavia for about 20 years. DAMP is diagnosed on the basis of concomitant attention deficit/hyperactivity disorder and developmental coordination disorder in children who do not have severe learning disability or cerebral palsy. In clinically severe form it affects about 1.5% of the general population of school age children; another few per cent are affected by more moderate variants. Boys are overrepresented; girls are currently probably underdiagnosed. There are many comorbid problems/overlapping conditions, including conduct disorder, depression/anxiety, and academic failure. There is a strong link with autism spectrum disorders in severe DAMP. Familial factors and pre- and perinatal risk factors account for much of the variance. Psychosocial risk factors appear to increase the risk of marked psychiatric abnormality in DAMP. Outcome in early adult age was psychosocially poor in one study in almost 60% of unmedicated cases. There are effective interventions available for many of the problems encountered in DAMP.
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