Relationship Between Neonatal Vitamin D at Birth and Risk of Autism Spectrum Disorders: the NBSIB Study
Journal of Bone and Mineral Research, 27 November 2017. DOI: 10.1002/jbmr.3326
Dong-Mei Wu, Xin Wen, Xin-Rui Han, Shan Wang, Yong-Jian Wang, Min Shen, Shao-Hua Fan, Juan Zhuang, Meng-Qiu Li, Bin Hu, Chun-Hui Sun, Ya-Xing Bao, Jing Yan, Jun Lu, Yuan-Lin Zheng
- Overview Autism and vitamin D
- Autism rate cut in half when multivitamins (including vitamin D) used during pregnancy – Oct 2017
- Autistic child 2.4 X more likely if less than 10 ng of vitamin D during 2nd trimester – April 2017
- Autism risk factors – many are associated with low vitamin D – meta-meta-analysis March 2017
- Autism risk reduced 2X by prenatal vitamins (Vitamin D or Folic) – Feb 2019
- Autism and Vitamin D massive review – latitude, season, migration, VitD levels and intervention – April 2016
- Autism rate in siblings reduced 4X by vitamin D: 5,000 IU during pregnancy, 1,000 IU to infants – Feb 2016
- Autism associated with low Zinc during pregnancy (Zinc is needed by Vitamin D Receptor) – July 2018
- Autistics have half of the response to Vitamin D – RCT Oct 2018
Autism treated by Vitamin D: Dr. Cannell - video June 2013 includes many reasons why he believes Autism is related to Vitamin D
- Both have strong inheritance features – Vitamin D about 60%
- Both have gotten substantially worse in last 30 years
- Vitamin D is known to be involved in brain development
- All autistic children are VitD deficient, but not all children who are deficient are autistic: genes are involved
- When giving vitamin D to cure children of rickets “mental dullness” decreases as well
- Children with genes which give them too much (Williams Syndrome) have to reverse of autism – too sociable
- Mothers having lots of fish (and thus more vitamin D) give birth to kids with less autistic symptoms
- Both associated with weak bones
- Both worse around the age of weaning
- Autism is more common in rich families – more likely to apply sun screen and stay indoors
- Autism increases with drugs which lower levels of vitamin D
- Seizures are common with Autism - Vitamin D has been shown to reduce seizures
- Fewer autistic symptoms (such as sleep problems) during summer: when child gets more vitamin D from the sun
- Both worse with latitude
- Both vary with Ultraviolet light
- Both vary with time of year (more birth of autistics in March in Northern hemisphere)
- 2X more urban autism – less UVB in urban environments
- Both worse with pollution
- Both worse with increased clouds and rain
- Both worse with closely spaced pregnancies
- Autistics have abnormal immune response – similar to that of vitamin D deficiency
- Low levels of vitamin D in mother animals reduces brain function in offspring
- Vitamin deficient rat pups have similar brain abnormalities to that of human autistic children
- Autistic children get less vitamin D in their blood for the same amount of sun exposure
- The 4 males/1 female ratio - Note estrogen increases vitamin D in the brain (testosterone does not)
- Both worse in African Americans (A-A 2-3 increased autism rate)
- Both worse in Dark-skinned immigrants in Europe
- Note: All articles in Autism category
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Many of the above Autism associations are also associated with low Vitamin D during pregnancyPrevious studies suggested that lower vitamin D might be a risk factor for autism spectrum disorders (ASDs). The aim of this study was to estimate the prevalence of ASDs in 3-year-old Chinese children and to examine the association between neonatal vitamin D status and risk of ASDs. We conducted a study of live births who had taken part in expanded newborn screening (NBS), with outpatient follow-up when the children 3-year old. The children were confirmed for ASDs in outpatient by the Autism Diagnostic Interview-Revised and Diagnostic and Statistical Manual of Mental Disorders (DSM)-5 criteria. Intellectual disability (ID) status was defined by the intelligence quotient (IQ < 80) for all the participants. The study design included a 1:4 case to control design. The concentration of 25-hydroxyvitamin D3 [25(OH)D3] in children with ASD and controls were assessed from neonatal dried blood samples.
A total of 310 children were diagnosed as having ASDs; thus, the prevalence was 1.11% (95% CI, 0.99% to 1.23%). The concentration of 25(OH)D3 in 310 ASD and 1240 controls were assessed. The median 25(OH)D3 level was significantly lower in children with ASD as compared to controls (p < 0.0001).Compared with the fourth quartiles, the relative risk (RR) of ASDs was significantly increased for neonates in each of the three lower quartiles of the distribution of 25(OH)D3, and increased risk of ASDs by
- 260% (RR for lowest quartile: 3.6; 95% CI, 1.8 to 7.2; p < 0.001),
- 150% (RR for second quartile: 2.5; 95% CI, 1.4 to 3.5; p = 0.024), and
- 90% (RR for third quartile: 1.9; 95% CI, 1.1 to 3.3; p = 0.08), respectively.
Furthermore, the nonlinear nature of the ID-risk relationship was more prominent when the data were assessed in deciles. This model predicted the lowest relative risk of ID in the 72rd percentile (corresponding to 48.1 nmol/L of 25(OH)D3). Neonatal vitamin D status was significantly associated with the risk of ASDs and intellectual disability. The nature of those relationships was nonlinear.
Autistic children were 3.6 X more likely to have low levels of vitamin D – Nov 2017Printer Friendly Follow this page for updates5925 visitors, last modified 20 May, 2023, This page is in the following categories (# of items in each category)Attached files
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