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 ORIGINAL ARTICLE
Year : 2018  |  Volume : 66  |  Issue : 4  |  Page : 1016--1019

Homocysteine and vitamin B12: Other causes of neural tube defects in Eastern Uttar Pradesh and Western Bihar population


1 Department of Anatomy, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
2 Department of Neurosurgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
3 Department of Neurology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
4 Department of Pediatric Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India

Correspondence Address:
Dr. Royana Singh
Department of Anatomy, Institute of Medical Sciences, Banaras Hindu University, Varanasi - 221 005, Uttar Pradesh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0028-3886.236968

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Background: Neural tube defects (NTDs) are congenital malformations with an incidence of 1–10/1000 live births. Homocysteine and vitamin B12 metabolism have been shown to be associated with NTDs. Aim: To investigate the status of maternal and neonate's folic acid, homocysteine, and vitamin B12 levels and their association with the risk of development of NTDs in the population of Eastern Uttar Pradeshand Western Bihar, India. Materials and Methods: This study is a cross-sectional, retrospective study where 96 mothers who either had a first NTD child or had a history of NTD child in the family and 126 neonates with spina bifida were recruited during the period 2012-2015. Eighty-four control mothers whose previous and current pregnancies were normal, and 87 control neonates who had no defects and were within the same age range as the NTD affected neonates, recruited from the department of pediatric surgery, were enrolled in the study. Plasma concentrations of folic acid, vitamin B12, and homocysteine were compared between cases and controls. Results: The folic acid level in the mothers and neonates was within the normal limit. A significant increase in the level of homocysteine in mothers with affected pregnancy and in neonate cases in comparison to control mothers was obseved. Further, a significant decrease in the level of vitamin B12 in mothers with NTD neonates and in the affected neonates was noted. A negative correlation was found between homocysteine and vitamin B12 levels in case and control mothers. Conclusion: A correlation of an increase in serum homocysteine with a decrease in vitamin B12 was seen in mothers of neonates with NTD. A similar observation as made in the neonates with NTDs. It may be suggested that maternal decrease in vitamin B12, in mothers who have normal folic acid may be associated with NTD in their children.






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