Active clinical trials for "Attention Deficit Disorder with Hyperactivity"

In this study we try to identify the signature of brain activity in the EEG of attention deficit disorder (ADHD) patients compared to healthy subjects under different doses of Ritalin (methylphenidate) treatment.

The goal of this research study is to measure what percentage of women who suspect they have symptoms of ADHD will go on to be diagnosed with ADHD using accepted practice standards. The study will also evaluate the influence education on the genetics of ADHD has on a woman in her deciding to receive behavioral health treatment for ADHD.

Tourette's disorder (TD) is a childhood-onset neuropsychiatric disorder, manifesting motor and vocal tics with increased likelihood of comorbid with attention-deficit/hyperactivity disorder (ADHD) and other psychiatric disorders. Literature documents the comorbid condition with ADHD predicts an increased functional deficit among individuals with ADHD. The information about neuropsychological functioning among individuals with TD adn/or ADHD is little in Asian population. This study aims to validate the diagnoses of TD, ADHD, and TD comorbid ADHD by symptomatology, neuropsychological measures, and social adjustment. This is a case-control study with a sample of 30 subjects with TD, 60 with ADHD, 30 with TD+ADHD, and 60 controls aged from 6 to 18. All subjects will receive comprehensive assessment including standard psychiatric diagnostic interviews using (K-SADS-E), behavioral assessments (SNAP-IV, CPRS:R-S, CTRS:R-S, CBCL, YBOCS, YGTSS), social adjustment (SAICA, GCAS), parenting (PBI, APGAR) and neuropsychological assessment (CPT, CANTAB, WISC-III). We anticipate that this study will provide the primitive data to validate the TD and ADHD using neuropsychological and clinical measures.

The aim of the present proposal is to prove that adult attention deficit hyperactivity disorder (ADHD) patients show lower serotonin transporter (5-HTT) binding using positron emission tomography (PET) and the selective radioligand [11C]DASB. Specifically, the 5-HTT binding will be quantified in 20 adult medication-free ADHD patients (50% females) and in 20 age- and sexmatched healthy controls. Investigating untreated adult ADHD patients without any psychiatric comorbidities will provide the opportunity to estimate the change of serotonin transporter binding in adult ADHD patients compared to a group of healthy controls. Several lines of evidence support the hypothesis that serotonergic neurotransmission may, in addition to dopamine, play an important role in the aetiology of ADHD. So far, no PET study investigating serotonergic neurotransmission in adult ADHD patients has been conducted, although alterations in the serotonin system may be substantially involved in the susceptibility and subtype characterization of ADHD.

This study is being conducted to enhance and extend the clinical utility of the Quotient® ADHD System Adolescent and Adult Version Test by adding large numbers of well-screened controls to the existing Quotient® ADHD System database of adolescents and adults (ages 15-55).

To evaluate the dental status of children using ritalin and suffering from ADHA in comparison to healthy children.

To understand whether a relationship exists between eating disorders and ADHD, we seek to clarify the prevalence of ADHD in individuals with eating disorders. To this end, we will estimate the prevalence of ADHD, and other neuropsychiatric disorders, in outpatients with history of an eating disorder diagnosis. Secondarily, we will identify patterns of cognitive deficits in outpatients with history of an eating disorder diagnosis. We will also examine whether ADHD in this population is associated with functional and familial correlates associated with ADHD.

Attention deficit and hyperactivity (ADHD) affect 6% of school-aged children. Few studies reported higher prevalence of caries and restorations among children with ADHD. Methylphenidate is the drug of choice to treat ADHD. according to the medical literature methylphenidate can cause xerostomia. Our study will investigate saliva parameters (such as quantity, bacteria in saliva, buffer capacity), oral hygiene and diet habits and their influence on caries among children with ADHD and among healthy children. Our hypothesis is: Children with ADHD will have more caries. Children with ADHD will have more detrimental oral hygiene and diet habits. There will be a difference in the saliva parameters between children with ADHD and healthy children.

Host-microbe interactions play a key role in brain development and function and in the etiology of neurodevelopmental disorders. Attention-deficit/hyperactivity disorder (ADHD) is a heterogeneous disorder that affects 1 in 20 children and results in poor life-time outcomes. However, the etiology of ADHD is unclear and its diagnosis and treatment are still challenging. Different factors reported to be associated with the risk of developing ADHD and/or linked to different ADHD manifestations have also been linked to shifts in gut microbiota composition, suggesting a link between the microbiota and the disorder. Here, we will perform a metagenome-wide association study and serum metabolomics profiling in a cohort of control and ADHD, 6-15 years, Chinese individuals. We aim to identify ADHD-associated gut microbial species linked to changes in circulating metabolites. We also aim to find the possible intervention strategy in ADHD by targeting the gut microbiota.

Source: Sample bank of Xijing Hospital and Children's Hospital Affiliated to Soochow University; Sample form: Whole blood; Estimated number of samples: 100 patients with ADHD and age, sex matched healthy controls; Case exclusion criteria: all kinds of neuropsychiatric disorders, IQ value of less than 70; Study protocol: Using Qiagen kit to extract the genomic DNA of 200 microliters of blood. UV spectrophotometer test DNA purity of 260/280 close to 1.8 (1.8 ± 0.05), the concentration of 100ng/μL or more before the next sequencing. The extracted genomic DNA will be sent to Sangon Biology Engineering Limited Company (Shanghai) and sequenced to find candidate mutations related to ADHD risk sequence. According to NIH gene database, the longest transcript of NDRG2 (ID: 57447 gene, https://www.ncbi.nlm.nih.gov/nuccore/NC_000014.9? Report=genbank&from=21016763&to=21070872&strand=true) (a total of 17 exons and 16 introns and the gene 5 'UTR and 3' UTR region) will be alignmented sequences to find potential mutations. Using the chi square analysis and other statistical methods to determine the relationship between the mutations and susceptibility to ADHD.