25 research outputs found
Subclinical immune reactions to viral infections may correlate with child and adolescent diagnosis of attention-deficit/hyperactivity disorder: A preliminary study from Turkey
Background: Attention-Deficit/Hyperactivity Disorder (ADHD) is one of the most common neuro-developmental disorders of childhood and adolescence. Studies focusing on the relationship of infectious agents and ADHD are scarce. It is also known that cerebellar injury may lead to hyperactive behavior. This study aimed to evaluate the relationship between viral agents of cerebellitis and the diagnosis of ADHD.Methods: The study group was formed of 60 consecutive ADHD patients and 30 healthy children. IgG levels for VZV; HSV-1, CMV, Measles, Mumps, Rubella and EBV were evaluated.Results: Males were significantly higher among patients with ADHD (65% vs. 40%, p=0.025). Patients with ADHD displayed significantly higher positivity for measles IgG (80% vs. 60%, p=0.044). When patients with ADHD were classified according to their pubertal status, adolescents with ADHD displayed higher positivity for mumps (100% vs. 74.4%, p=0.043). Most of the patients were diagnosed with ADHD-Combined or Hyperactive/Impulsive Subtypes (56.6%) while 43.3% were diagnosed with ADHD-predominantly inattentive type. When patients with subtypes of ADHD were compared in terms of seropositivity, it was found that patients with ADHD-Combined/ Hyperactive-Impulsive subtypes had significantly elevated reactions for Rubella (100% vs. 88.5%, p=0.044).Conclusion: Although limited to a single center and may be prone to sampling biases, our results may support the notion that immune reactions may be related with ADHD among children and adolescents. Further, prospective studies from multiple centers are needed to support our findings and establish causality.Key words: ADHD, infection, immunology, measles, rubella, mumps, Ig
Cartilage oligomeric matrix protein in idiopathic pulmonary fibrosis
Idiopathic pulmonary fibrosis (IPF) is a progressive and life threatening disease with median survival of 2.5-3 years. The IPF lung is characterized by abnormal lung remodeling, epithelial cell hyperplasia, myofibroblast foci formation, and extracellular matrix deposition. Analysis of gene expression microarray data revealed that cartilage oligomeric matrix protein (COMP), a non-collagenous extracellular matrix protein is among the most significantly up-regulated genes (Fold change 13, p-value <0.05) in IPF lungs. This finding was confirmed at the mRNA level by nCounter® expression analysis in additional 115 IPF lungs and 154 control lungs as well as at the protein level by western blot analysis. Immunohistochemical analysis revealed that COMP was expressed in dense fibrotic regions of IPF lungs and co-localized with vimentin and around pSMAD3 expressing cells. Stimulation of normal human lung fibroblasts with TGF-β1 induced an increase in COMP mRNA and protein expression. Silencing COMP in normal human lung fibroblasts significantly inhibited cell proliferation and negatively impacted the effects of TGF-β1 on COL1A1 and PAI1. COMP protein concentration measured by ELISA assay was significantly increased in serum of IPF patients compared to controls. Analysis of serum COMP concentrations in 23 patients who had prospective blood draws revealed that COMP levels increased in a time dependent fashion and correlated with declines in force vital capacity (FVC). Taken together, our results should encourage more research into the potential use of COMP as a biomarker for disease activity and TGF-β1 activity in patients with IPF. Hence, studies that explore modalities that affect COMP expression, alleviate extracellular matrix rigidity and lung restriction in IPF and interfere with the amplification of TGF-β1 signaling should be persuaded. © 2013 Vuga et al
Consensus guidelines for the use and interpretation of angiogenesis assays
The formation of new blood vessels, or angiogenesis, is a complex process that plays important roles in growth and development, tissue and organ regeneration, as well as numerous pathological conditions. Angiogenesis undergoes multiple discrete steps that can be individually evaluated and quantified by a large number of bioassays. These independent assessments hold advantages but also have limitations. This article describes in vivo, ex vivo, and in vitro bioassays that are available for the evaluation of angiogenesis and highlights critical aspects that are relevant for their execution and proper interpretation. As such, this collaborative work is the first edition of consensus guidelines on angiogenesis bioassays to serve for current and future reference
Motivation for treatment in patients with substance use disorder: personal volunteering versus legal/familial enforcement
Rabia Bilici,1 Esra Yazici,2 Ali Evren Tufan,3 Elif Mutlu,4 Filiz İzci,1 Görkem Karakas Ugurlu5 1Erenkoy Mental Health and Neurology Training and Research Hospital, Department of Psychiatry, Istanbul; 2Sakarya University, Medical Faculty, Department of Psychiatry, Sakarya, 3Abant Izzet Baysal University, Medical Faculty, Department of Child and Adolescent Psychiatry, Bolu, 4Bakirköy Mental Health and Neurology Training and Research Hospital, Department of Psychiatry, Istanbul, 5Yildirim Beyazit University, Medical Faculty, Department of Psychiatry, Ankara, Turkey Background: Motivation for treatment on the part of patients with addictive disorders is known to affect their prognosis, and lack thereof is reported to be among the most common reasons for failed treatment adherence and relapse after treatment. This study evaluated the relationship between volunteering, personality, demographic factors, and motivation for treatment. Methods: The study was conducted at a substance dependence center in the eastern part of Turkey. Forty-five patients (mean age 37.9±11.2 years) with a substance use disorder were included. They were assessed using the Structured Clinical Interview for DSM (Diagnostic and Statistical Manual of Mental Disorders) Axis II disorders. Depression and anxiety were evaluated using the Beck depression and anxiety inventories, and motivation for treatment was measured using the Turkish version of the Texas Christian University Motivation for Treatment scale. Results: All patients had been using substances daily and 41 (88.9%) had been using multiple drugs. The most commonly used substance was heroin (n=18, 40%). Voluntary admission was a predictor of motivation for treatment (P<0.05). Having a personality disorder and higher depression scores were related to less motivation for treatment. Conclusion: Motivation for treatment is affected by external factors such as type of admission and internal factors such as personality disorder and depression. Investigation of ways to encourage voluntary admission for treatment instead of enforced strategies may be helpful for achieving higher levels of motivation for treatment in substance users. Keywords: substance use, motivation, treatment, voluntary, personality, depressio
Vitamin B12, folate, and homocysteine levels in patients with obsessive–compulsive disorder
Nuray Türksoy,1 Rabia Bilici,2 Altan Yalçiner,3 Y Özay Özdemir,2 Ibrahim Örnek,4 Ali Evren Tufan,5 Ayşe Kara6 1Simurg Psychiatry and Psychotherapy Center, Istanbul, 2Erenköy State Hospital for Psychiatric and Neurological Diseases, Istanbul, 3Düzen Laboratories, Istanbul, 4Florence Nightingale Hospital, Istanbul, 5Department of Child and Adolescent Psychiatry, Abant Izzet Baysal University, Bolu, 6Bakırköy State Hospital for Psychiatric and Neurological Diseases, Istanbul, Turkey Abstract: It is known that elevated serum homocysteine, decreased folate, and low vitamin B12 serum levels are associated with poor cognitive function, cognitive decline, and dementia. Current literature shows that some psychiatric disorders, mainly affective and psychotic ones, can be related to the levels of vitamin B12, folate, and homocysteine. These results can be explained by the importance of vitamin B12, folate, and homocysteine in carbon transfer metabolism (methylation), which is required for the production of serotonin as well as for other monoamine neurotransmitters and catecholamines. Earlier studies focused on the relationship between folate deficiency, hyperhomocysteinemia, and depressive disorders. Although depressive and anxiety disorders show a common comorbidity pattern, there are few studies addressing the effect of impaired one-carbon metabolism in anxiety disorders – especially in obsessive–compulsive disorder (OCD). This study aimed to measure the levels of vitamin B12, folate, and homocysteine specifically in order to see if eventual alterations have an etiopathogenetic significance on patients with OCD. Serum vitamin B12, folate, and homocysteine concentrations were measured in 35 patients with OCD and 22 controls. In addition, the Structured Clinical Interview for the Diagnostic and Statistical Manual for Mental Disorders, Fourth Edition, Text Revision, Yale–Brown Obsessive Compulsive Scale, Hamilton Rating Scale for Depression, and Hamilton Rating Scale for Anxiety were conducted for each patient. It was found that vitamin B12 levels were decreased and homocysteine levels were increased in some OCD patients. Homocysteine levels were positively correlated with Yale–Brown compulsion and Yale–Brown total scores. In conclusion, findings of this study suggest that some OCD patients might have vitamin B12 deficiency and higher homocysteine levels. Keywords: obsessive–compulsive disorder, vitamin B12, folate, homocysteine, obsession, compulsio
Gender Differences in Sexually Abused Children and Adolescents: A Multicenter Study in Turkey
PMID = 2726653