Early-onset Group (early-onset + group)

Distribution by Scientific Domains


Selected Abstracts


Influence of age of onset on clinical features in obsessive,compulsive disorder

DEPRESSION AND ANXIETY, Issue 3 2005
it Tükel M.D.
Abstract We compared early-onset and late-onset obsessive,compulsive disorder (OCD) patients in terms of demographic and clinical features. One hundred sixteen outpatients whose primary diagnosis was OCD according to DSM-IV diagnostic criteria were recruited. Early-onset (n=50) and late-onset (n=66) OCD groups were compared with respect to demographic variables and scores obtained on various scales. A male gender predominance was found in early-onset OCD group. Symmetry/exactness obsessions, religious obsessions, hoarding/saving obsessions, and hoarding/collecting compulsions also were significantly more frequent in the early-onset group than in the late-onset group. The results may suggest a phenotypic difference between the two groups. Further studies are needed to investigate the differences between early-onset and late-onset OCD groups to examine the hypothesis that early-onset OCD is a distinct subtype of the disorder. © 2005 Wiley-Liss, Inc. [source]


Facial Emotion Recognition after Curative Nondominant Temporal Lobectomy in Patients with Mesial Temporal Sclerosis

EPILEPSIA, Issue 8 2006
Shearwood McClelland III
Summary:,Purpose: The right (nondominant) amygdala is crucial for processing facial emotion recognition (FER). Patients with temporal lobe epilepsy (TLE) associated with mesial temporal sclerosis (MTS) often incur right amygdalar damage, resulting in impaired FER if TLE onset occurred before age 6 years. Consequently, early right mesiotemporal insult has been hypothesized to impair plasticity, resulting in FER deficits, whereas damage after age 5 years results in no deficit. The authors performed this study to test this hypothesis in a uniformly seizure-free postsurgical population. Methods: Controls (n = 10), early-onset patients (n = 7), and late-onset patients (n = 5) were recruited. All patients had nondominant anteromedial temporal lobectomy (AMTL), Wada-confirmed left-hemisphere language dominance and memory support, MTS on both preoperative MRI and biopsy, and were Engel class I 5 years postoperatively. By using a standardized (Ekman and Friesen) human face series, subjects were asked to match the affect of one of two faces to that of a simultaneously presented target face. Target faces expressed fear, anger, or happiness. Results: Statistical analysis revealed that the early-onset group had significantly impaired FER (measured by percentage of faces correct) for fear (p = 0.036), whereas the FER of the late-onset group for fear was comparable to that of controls. FER for anger and happiness was comparable across all three groups. Conclusions: Despite seizure control/freedom after AMTL, early TLE onset continues to impair FER for frightened expressions (but not for angry or happy expression), whereas late TLE onset does not impair FER, with no indication that AMTL resulted in FER impairment. These results indicate that proper development of the right amygdala is necessary for optimal fear recognition, with other neural processes unable to compensate for early amygdalar damage. [source]


MRI white matter hyperintensities, 1H-MR spectroscopy and cognitive function in geriatric depression: a comparison of early- and late-onset cases

INTERNATIONAL JOURNAL OF GERIATRIC PSYCHIATRY, Issue 12 2001
Tetsuhito Murata
Abstract Background and Objectives Geriatric depression is often thought to differ from that at other times of adulthood. Recently, several studies have shown that the incidence of white matter hyperintense lessions identified by brain MRI is higher in patients with geriatric depression than in healthy elderly subjects, but a consensus has not yet been reached on the relationship between the severity of white matter lesions and either cognitive impairment or depressive symptoms. Method Forty-seven patients aged 50 to 75 years with major depression were divided into two groups based on age at onset of depression: early-onset (<,50 years) group (20 patients; mean age, 62.7,±,6.7) and late-onset (,50 years) group (27 patients; mean age, 65.6,±,5.4). The severity of hyperintense white matter lesions on MRI was classified by region, then a proton magnetic resonance spectroscopy (1H-MRS) focusing on the white matter of the frontal lobes, multidimensional neuropsychological tests and evaluation of depressive symptoms were conducted. Results The severity of the deep white matter lesions, the deterioration of cognitive function related to subcortical/frontal brain system and clinician-rated depressive symptoms were all more pronounced in the late-onset group compared with those in the early-onset group. It was further observed that the more severe the deep white matter lesions, the lower the levels of N-acetylaspartate/creatine. With the age of onset as the covariate, the patients with moderate deep white matter lesions had more pronounced cognitive impairment and clinician-rated depressive symptoms than those with none and/or mild lesions. Conclusion These results suggest that subcortical/frontal type cognitive impairment and the persistence of depressive symptoms in geriatric depression is related to moderate deep white matter lesions more often complicated in the late-onset group. The 1H-MRS findings were suggested to be a useful indicator of neuronal/axonal loss in the white matter of the frontal lobes which precedes cognitive impairment. Copyright © 2001 John Wiley & Sons, Ltd. [source]


CHOP T/C and C/T haplotypes contribute to early-onset type 2 diabetes in Italians

JOURNAL OF CELLULAR PHYSIOLOGY, Issue 2 2008
*Article first published online: 4 AUG 200, Claudia Gragnoli
Type 2 diabetes (T2D) is characterized by impaired insulin secretion, insulin insensitivity and decreased beta-cell mass. Multiple genes contribute to T2D. The chromosome 12q13.1 region is in linkage to T2D in different populations, including our Italian dataset. CHOP is a candidate gene for the linkage, as it is located in the chromosome 12q13.1 region, and may contribute to T2D by increasing beta-cell apoptosis susceptibility and by impairing insulin sensitivity. Our goal was to identify any potential CHOP gene variants contributing to T2D in our Italian early-onset T2D families, which show linkage to the CHOP region. We directly sequenced the CHOP gene in 28 Italian probands of the linked T2D families and in 115 control subjects. We performed genotype and haplotype association tests with T2D of the identified single nucleotide polymorphisms (SNPs). We performed model-free and parametric association haplotype tests with T2D. We identified three SNPs [5,UTR-c.279T,>,C, 5,UTR-c.120A,>,G and,+,nt30C,>,T (F10F)] in CHOP. These SNPs are in complete linkage disequilibrium. The genotype association test showed an association trend with T2D of TT (F10F) and AG (-c.120A,>,G). The haplotype association test provided significant results for the haplotypes T/C (frequency,=,0.33) and C/T (frequency,=,0.01) (at 5,UTR-c.279T,>,C and,+,nt30C,>,T, respectively) under non-parametric analysis (P -value,=,0.0000), recessive model (P -value,=,0.0000) and additive model (P -value,=,0.0014). Our data show that CHOP described haplotypes T/C and C/T, as an additive and as a homozygous variant, contribute significantly to T2D in our Italian early-onset group. We conclude that the CHOP T/C and C/T haplotype contributes to our T2D linkage signal on chromosome 12q13.1. J. Cell. Physiol. 217: 291,295, 2008. © 2008 Wiley-Liss, Inc. [source]


Diabetic autoimmunity in infants and pre-schoolers with type 1 diabetes

PEDIATRIC DIABETES, Issue 3 2000
Eba H Hathout
The incidence of type 1 diabetes is increasing most rapidly in children under 5 yrs of age, a group where the disease appears to be more accelerated than traditional type 1 diabetes. Little is known about demographics, and markers of diabetes autoimmunity, in infants and pre-schoolers with type 1 diabetes. We report an analysis of 47 children diagnosed with type 1 diabetes prior to 5 yrs of age compared with a representative cohort (n=49) diagnosed after 5 yrs of age, and all were followed at Loma Linda University (LLU) Children's Hospital. Ethnic, familial, seasonal, and autoimmune marker characteristics are outlined. To determine the prevalence of diabetes autoimmune markers, ICA512, GAD65 and insulin autoantibodies (IAA) antibodies were measured. Children with early-onset diabetes had a significantly higher incidence of viral illness symptoms (p=0.005) and diabetic ketoacidosis (DKA; p=0.017) at the time of diagnosis. However, hemoglobin A1C (HbA1c) levels at diagnosis were significantly higher in the later-onset group (p=0.001). A honeymoon period was reported in 14.8% of children diagnosed before 5 yrs of age compared with 42.1% in those diagnosed over 5 yrs of age (p=0.038). Islet-cell antibodies (ICAs) and glutamic acid decarboxylase (GAD) antibody titers were significantly different between early- and later-onset groups. ICA titers were positive in 35.29%, and GAD in 41.38% of the early-onset group versus 70.83 and 71.74% in children with later-onset disease, (p=0.001 and 0.009, respectively). IAA titers, drawn after instituting insulin therapy, were not significantly different between the two groups. GAD and ICA512 antibody results suggest a relative lack of diabetes immune markers in infants and toddlers with new-onset diabetes. This finding, and the apparent shorter pre-clinical phase reflected in the lower HbA1c values, may indicate age-related differences in type 1 diabetes autoimmunity or the existence of non-autoimmune diabetogenic mechanisms in younger children. [source]