Vitamin D’s Molecular Action Mechanism in Attention-Deficit/ Hyperactivity Disorder: A Review of Evidence

2018 ◽  
Vol 17 (4) ◽  
pp. 280-290 ◽  
Author(s):  
Ahmad Saedisomeolia ◽  
Mahsa Samadi ◽  
Fatemeh Gholami ◽  
Marzieh Seyedi ◽  
Mohammad Effatpanah ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Vitamin D ◽  
Attention Deficit Hyperactivity Disorder ◽  
Attention Deficit ◽  
Molecular Mechanisms ◽  
Healthy Children ◽  
Related Factors ◽  
Children With Adhd ◽  
Hyperactivity Disorder ◽  
Vitamin D Levels

Background & Objective: Attention-deficit/hyperactivity disorder (ADHD) is a heterogeneous disorder characterized by hyperactivity, impulsivity and inattention. Children with ADHD have challenges with learning, behavior and psychosocial adjustments, sometimes retained into adulthood. The exact etiology of ADHD is unknown, and the pathophysiology of this disease is complex. Several hypotheses have been raised regarding ADHD pathogenesis, including serotonergic and catecholaminergic signalling pathway dysfunction, neurotropic-related factors, oxidative stress, or neuroinflammation. Vitamin D has an important protective effect against inflammation, oxidative stress and certain neurotrophic factors and neurotransmitter, as well as facilitating dopaminergic and serotonergic functions. Vitamin D levels in children with ADHD are lower than in healthy children, and thus may be involved in the pathogenesis of ADHD. These observations, therefore, confirm the neuroprotective role of vitamin D through multiple molecular mechanisms and can be considered as a promising target in understanding ADHD pathology. Conclusion: In this context, the present study reviews the molecular pathways of vitamin D in ADHD patients.

scholarly journals Serum Levels of Vitamin A and Vitamin D and Their Association With Symptoms in Children With Attention Deficit Hyperactivity Disorder

2020 ◽  
Vol 11 ◽  
Author(s):  
Hong-Hua Li ◽  
Xiao-Jing Yue ◽  
Cheng-Xin Wang ◽  
Jun-Yan Feng ◽  
Bing Wang ◽  
...  
Keyword(s):  
Vitamin D ◽  
Attention Deficit Hyperactivity Disorder ◽  
Vitamin A ◽  
Attention Deficit ◽  
Serum Levels ◽  
Adhd Group ◽  
Healthy Children ◽  
Serum Concentrations ◽  
Children With Adhd ◽  
Hyperactivity Disorder

Objective: To measure levels of vitamin A (VA) and vitamin D (VD) and the symptomatic association of their co-deficiencies on attention deficit hyperactivity disorder (ADHD) in Chinese children (6–9 years).Methods: Eighty-two children (69 boys and 13 girls; mean age = 7.1 ± 0.9 years at the time of the diagnosis) with ADHD were recruited as ADHD group. A total of 106 healthy children were recruited as the healthy control (HC) group. Serum levels of retinol and 25-hydroxyvitamin D (25(OH)D) of all children were evaluated using high-performance liquid chromatography (HPLC) and HPLC-tandem mass spectrometry. The Swanson, Nolan, and Pelham IV Rating Scale (SNAP-IV) was employed to assess the clinical symptoms of ADHD.Results: Children suffering from ADHD had significantly reduced serum levels of retinol and 25(OH)D compared with those of HCs, and the prevalence of VA deficiency and VD deficiency were higher in children suffering from ADHD. Serum concentrations of 25(OH)D and retinol were linked closely with the presence or absence of ADHD after adjustment for age, body mass index, season of blood sampling, and sun exposure. Serum concentrations of 25(OH)D and retinol showed a negative correlation with the total scores of SNAP-IV. Children with ADHD as well as VA and VD co-deficiency had increased SNAP-IV total scores and ADHD inattention subscale scores.Conclusion: VA deficiency and VD deficiency in children with ADHD were increased in comparison with that in HCs. VA and VD co-deficiency associated with ADHD symptom severity. Attention should be paid to regular testing of VA levels and VD levels. However, the mechanism of VA and VD in ADHD needs to be further studied. Interventional studies on VA and VD supplementation are recommended to further verify the relationship between VA and VD co-deficiency and ADHD.

scholarly journals Factors Related to Caregiver Intentions to Vaccinate Their Children with Attention-Deficit/Hyperactivity Disorder against COVID-19 in Taiwan

Vaccines ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 983
Author(s):  
Ching-Shu Tsai ◽  
Ray C. Hsiao ◽  
Yu-Min Chen ◽  
Cheng-Fang Yen
Keyword(s):  
Attention Deficit Hyperactivity Disorder ◽  
Attention Deficit ◽  
Linear Regression Analysis ◽  
Online Questionnaire ◽  
Related Factors ◽  
Children With Adhd ◽  
Hyperactivity Disorder ◽  
Family Attitudes ◽  
Oppositional Defiant ◽  
Comorbid Psychopathology

The aims of this study were to examine the proportion of caregivers who were hesitant to vaccinate their children with attention-deficit/hyperactivity disorder (ADHD) against coronavirus disease 2019 (COVID-19) and the factors related to caregiver intentions to vaccinate their children against COVID-19. In total, 161 caregivers of children with ADHD were recruited in this study. The caregivers completed an online questionnaire to provide data regarding their intention to vaccinate their children against COVID-19, concerns about the effectiveness and safety of vaccines, unfavorable family attitudes toward vaccines, and children’s medication use for ADHD and comorbid psychopathology. The factors related to caregiver intentions to vaccinate their child were examined using linear regression analysis. The results indicated that 25.5% of caregivers were hesitant to vaccinate their children with ADHD, and 11.8% refused to vaccinate their children against COVID-19. The caregivers’ concerns about the safety of vaccines and children’s regular use of medication for ADHD were negatively associated with caregiver intentions to vaccinate, whereas the children’s comorbid conduct or oppositional defiant problems were positively associated with the caregiver intentions to vaccinate. An intervention that enhances caregiver intentions to vaccinate their children with ADHD against COVID-19 by addressing the related factors found in this study is warranted.

The Effect of Vitamin D3 Supplementation on Serum BDNF, Dopamine, and Serotonin in Children with Attention-Deficit/Hyperactivity Disorder

2019 ◽  
Vol 18 (6) ◽  
pp. 496-501 ◽  
Author(s):  
Marzieh Seyedi ◽  
Fatemeh Gholami ◽  
Mahsa Samadi ◽  
Mahmoud Djalali ◽  
Mohammad Effatpanah ◽  
...  
Keyword(s):  
Vitamin D ◽  
Attention Deficit Hyperactivity Disorder ◽  
Vitamin D3 ◽  
Attention Deficit ◽  
Neurotrophic Factors ◽  
Serum Levels ◽  
Children With Adhd ◽  
Hyperactivity Disorder ◽  
Vitamin D3 Supplementation ◽  
Serum Bdnf

Background & Objective: Attention-Deficit/Hyperactivity Disorder (ADHD) is one of the most common psychiatric disorders in childhood. The exact etiology of this disease is unknown, but it is believed to be related to the disorder of catecholaminergic and serotonergic systems. Also, serum vitamin D levels in patients with ADHD is lower. Several studies have also shown the effect of vitamin D on the synthesis pathways of dopamine, serotonin, and a number of neurotrophic factors. Therefore, this study aimed to investigate the effect of vitamin D3 supplementation on serum levels of Brain-Derived Neurotrophic Factor (BDNF), dopamine, and serotonin in school-aged children with ADHD. Methods: Eighty-six children with ADHD were divided into two groups, based on randomized permuted blocks. Patients received 2000 IU vitamin D/day or a placebo for 12 weeks. Serum levels of BDNF, dopamine, serotonin, and 25-hydroxyvitamin D [25(OH)D] were measured at baseline and at the end of the study. Results: Serum levels of 25(OH)D and dopamine significantly increased in the vitamin D group, compared to the placebo group (p < 0.05). However, serum BDNF and serotonin levels did not change significantly. Conclusion: Vitamin D3 supplementation in children with ADHD can increase serum dopamine levels, but further studies are needed to determine the effects of vitamin D on neurotrophic factors and serotonin.

scholarly journals Differential motor alterations in children with three types of attention deficit hyperactivity disorder

2014 ◽  
Vol 72 (11) ◽  
pp. 856-861 ◽  
Author(s):  
Adrián Poblano ◽  
Belinda Luna ◽  
César Reynoso
Keyword(s):  
Attention Deficit Hyperactivity Disorder ◽  
Motor Skills ◽  
Attention Deficit ◽  
Healthy Children ◽  
Age And Gender ◽  
Children With Adhd ◽  
Hyperactivity Disorder ◽  
Hand Coordination ◽  
And Gender ◽  
Motor Alterations

Objective To determine frequency of motor alterations in children with attention deficit hyperactivity disorder (ADHD). Method We evaluated 19 children aged 7-12 years with ADHD classified in three sub-types: Combined (ADHD-C), with Inattention (ADHD-I), and with Hyperactivity (ADHD-H). Controls were age- and gender matched healthy children. We utilized Bruininks-Oseretsky Test of Motor Proficiency (BOTMP) for measuring motor skills. Results We observed differences between children with ADHD and controls in BOTMP general score and in static coordination, dynamic general- and hand- coordination, and in synkinetic movements. We also found differences in dynamic hand coordination between controls and children with ADHD-C; in dynamic general coordination between controls and children with ADHD-H; and in frequency of synkinetic movements between controls and children with ADHD-H. Conclusion Children with ADHD with a major degree of hyperactivity showed greater frequency of motor alterations.

scholarly journals Maternal Vitamin D Levels and the Risk of Offspring Attention-Deficit/Hyperactivity Disorder

2021 ◽  
Vol 60 (1) ◽  
pp. 142-151.e2 ◽  
Author(s):  
Minna Sucksdorff ◽  
Alan S. Brown ◽  
Roshan Chudal ◽  
Heljä-Marja Surcel ◽  
Susanna Hinkka-Yli-Salomäki ◽  
...  
Keyword(s):  
Vitamin D ◽  
Attention Deficit Hyperactivity Disorder ◽  
Attention Deficit ◽  
Maternal Vitamin ◽  
Hyperactivity Disorder ◽  
Vitamin D Levels

Caries Experience Associated with Attention – Deficit / Hyperactivity Disorder

2006 ◽  
Vol 30 (1) ◽  
pp. 3-8 ◽  
Author(s):  
Michael Todd Grooms ◽  
Martha Ann Keels ◽  
Michael Roberts ◽  
F. Thomas McIver
Keyword(s):  
Attention Deficit Hyperactivity Disorder ◽  
Attention Deficit ◽  
Caries Experience ◽  
Control Group ◽  
Daily Routine ◽  
Healthy Children ◽  
Children With Adhd ◽  
Hyperactivity Disorder ◽  
Whole Saliva ◽  
Significant Difference

The purpose of this cross-sectional study was to examine whether children with attention-deficit / hyperactivity disorder (ADHD) had a total caries experience that was equivalent to children without the disorder. Methods: The test sample included children ages 6 to 10 years old diagnosed with ADHD by physicians at Duke University Medical Center. The control group also included healthy children 6 to 10 years old without the diagnosis of ADHD.A visual dental exam for caries was performed and a sample of whole, unstimulated saliva was collected. The parent / guardian of each participant completed a health/medication history and a questionnaire concerning the child's oral health and habits, daily routine, and demographic information. Results: Wilcoxon and chi-square tests showed that children with ADHD have significantly more enamel caries in the primary and permanent dentitions and a significantly higher prevalence of total caries experience when compared to controls. There was no significant difference in whole saliva production between the ADHD children and the controls. Conclusions: Dentists should be aware that children with ADHD are at higher risk for caries.

scholarly journals Comparison of Nutrients' Intakes in Children with and without Attention Deficit Hyperactivity Disorder

2020 ◽  
Author(s):  
Elham Shareghfarid ◽  
Zohreh Sadat Sangsefidi ◽  
Mahdieh Hosseinzadeh ◽  
Amin Salehi-Abargouei ◽  
Mohammad Mohammadi
Keyword(s):  
Attention Deficit Hyperactivity Disorder ◽  
Attention Deficit ◽  
Control Group ◽  
Healthy Children ◽  
Dietary Intakes ◽  
Children With Adhd ◽  
Hyperactivity Disorder ◽  
Adhd Children ◽  
Calcium Magnesium ◽  
Control Survey

Background: Attention deficit hyperactivity disorder (ADHD) is the most common chronic mental disorder among children. Children with ADHD may be at risk for a variety of nutrients' deficiencies. We aimed to assess the nutrients' intakes among ADHD children and compare them with the healthy ones. Methods: This was a hospital-based case-control survey over 120 ADHD as the cases and 240 non-ADHD children as the control participants aged 6-13 years. Usual dietary intakes were assessed using a validated semi quantitative food-frequency questionnaire (FFQ). The P-values were considered significant if they were < 0·05. Results: Energy: 2812.2 ± 1029.9 kcal/day vs. 3136.4 ± 1360.3 kcal/day, P = 0.001), fat: 78.3 ± 28.8 g/day vs. 87.2 ± 44.9 g/day, P > 0.001), and carbohydrate: 436.8 ± 192.6 g/day vs. 479.9 ± 244.2 g/day, P = 0.009) intakes were significantly lower in ADHD than healthy children. Similarly, consumption of calcium: 968.5 ± 358.3 mg/day vs. 1055.7 ± 453.4 mg/day, P = 0.03) and magnesium: 363.1 ± 173.9 mg/day vs. 411.9 ± 220.8 mg/day, P = 0.01) were significantly lower in the cases than control group. However, intakes of thiamin: 34.4±18.8 mg/day vs. 40.4 ± 25.6 mg/day, P = 0.002), riboflavin: 1.99 ± 0.76 mg/day vs. 2.21 ± 0.95 mg/day, P = 0.01), niacin: 24.9 ± 10.6 mg/day vs. 27.5 ± 13.2 mg/day, P = 0.01), and vitamin B5: 6.85 ± 3.35 mg/day vs. 7.49 ± 3.84 mg/day, P = 0.02) were significantly lower in the case than control group. Conclusion: Children with ADHD consumed significantly lower quantities of energy, macronutrients, calcium, magnesium, B vitamins (B1, B2, B3, B5), and vitamin C compared with the healthy children.

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