scholarly journals Peripheral Brain-Derived Neurotrophic Factor and Contactin-1 Levels in Patients with Attention-Deficit/Hyperactivity Disorder

2019 ◽  
Vol 8 (9) ◽  
pp. 1366 ◽  
Author(s):  
Liang-Jen Wang ◽  
Chih-Ching Wu ◽  
Min-Jing Lee ◽  
Miao-Chun Chou ◽  
Sheng-Yu Lee ◽  
...  

Brain-derived neurotrophic factor (BDNF) facilitates neuronal growth and plasticity, and is crucial for learning and memory. Contactin-1 (CNTN1) is a member of the subfamily of neural immunoglobulin and is involved in the formation of axon connections in the developing nervous system. This cross-sectional study investigates whether BDNF and CNTN1 affect susceptibility to attention deficit/hyperactivity disorder (ADHD). A total of 136 drug-naïve patients with ADHD (108 boys and 28 girls) and 71 healthy controls (45 boys and 26 girls) were recruited. Blood samples were obtained to measure the plasma levels of BDNF and CNTN1 in each child. We found that BDNF levels in the ADHD boys exceeded those in the control boys, but BDNF levels in the ADHD girls were lower than those in the control girls. Boys who had higher BDNF levels performed worse on the Wechsler Intelligence Scale for Children—Fourth Edition, but girls who had higher BDNF levels made fewer omission errors in the Conners’ Continuous Performance Test. However, CNTN1 level did not differ significantly between patients and controls, and were not correlated to ADHD characteristics, regardless of gender. The findings suggest BDNF may influence sex-specific susceptibility to ADHD, but CNTN1 was not associated with ADHD pathophysiology.

2019 ◽  
pp. 85-91
Author(s):  
Dinh Duong Le ◽  
Van Thang Vo ◽  
Thi Mai Nguyen ◽  
Thi Han Vo ◽  
Huu Chau Duc Nguyen ◽  
...  

Objectives: The study aims to explore the prevalence of attention deficit hyperactivity disorder and to examine the associated factors with ADHD among primary students by Vanderbilt ADHD rating scale for teacher and parents. Methods: A cross-sectional study design was conducted in 564 students who selected randomly in 4 primary schools in Hue city. Vanderbilt ADHD rating scale for parents and teachers were applied to evaluate the ADHD of children over 6 months ago. Results: The overall prevalence of children who had high risk with ADHD was 4.1% (95%CI: 2.44 - 5.72), including 4.6% and 4.8% in the rating of teachers and parents, respectively. Male was more likely to have ADHD than female (OR adj: 4.64 (95%CI: 1.53 - 14.05) and lack of closely friend (OR adj: 5.11 (95% CI: 2.13 - 12.24). Conclusion: Vanderbilt ADHD diagnosis rating scale for teachers and parents can be used to early recognization children with a high risk of ADHD. Key words: ADHD, Vanderbilt, ratings scale, teacher, parent, children


2018 ◽  
Vol 11 (1) ◽  
pp. 58-69 ◽  
Author(s):  
Ana Carolina Sierra Montoya ◽  
Sandra Catalina Mesa Restrepo ◽  
Jorge Mauricio Cuartas Arias ◽  
William Cornejo Ochoa

Introduction: Attention Deficit Hyperactivity Disorder (ADHD) is the most common behavioral issue for children. One of the sleeping disorders most frequently related to ADHD is the Restless Legs Syndrome (RLS), characterized by an irresistible urge to move the legs, something that is generally associated with paresthesias and motor restlessness. The prevalence rate of RLS in children diagnosed with ADHD is close to 18%, but in Colombia, these cases have been hardly studied. Objective: To determine the frequency of RLS, in children with ADHD. Methods: A cross-sectional study, filled out by parents of children diagnosed with ADHD, were analyzed. This questionnaire contained clinical criteria for classifying ADHD according to the DSM-IV, as well as diagnostic criteria for RLS by the National Institutes of Health (2003). Results: A predominance rate of 65.6% in combined ADHD was observed in children with RLS criteria. Upon carrying out an exploratory data analysis, it was found that having a family history of RLS and belonging to the middle or low socioeconomic strata are conditions associated with the presence of RLS in children with ADHD, with a significant p (p < 0.000) and a PR of 4.47 (3.16-6.32). Conclusions: The prevalence of RLS was similar to the findings of other clinical investigations. However, it highlights new prevalence values in relation to the comorbidity between ADHD and RLS, suggesting the need for new clinical and therapeutic alternatives amidst the presence of both syndromes.


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