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Ritual circumcision linked to increased risk of autism in young boys

  • - Urology / Nephrology News
  • Jan 13, 2015
  • Comments
  • Viewed: 2129
  
Tags: | autism | autism spectrum disorder | circumcision | hyperactivity disorder |

Research published today by the Journal of the Royal Society of Medicine suggests that circumcised boys are more likely than intact boys to develop autism spectrum disorder (ASD) before the age of 10. Risk is particularly high for infantile autism before the age of five. The research was carried out in Denmark among a cohort of all children born between 1994 and 2003. During the study over 340,000 boys were followed up to the age of nine between 1994 and 2013 and almost 5,000 cases of ASD were diagnosed. The study showed that regardless of cultural background circumcised boys may run a greater risk of developing ASD. The researchers also made an unexpected observation of an increased risk of hyperactivity disorder among circumcised boys in non-Muslim families.

Professor Morten Frisch of the Statens Serum Institut, Copenhagen, who led the research, said: “Our investigation was prompted by the combination of recent animal findings linking a single painful injury to lifelong deficits in stress response and a study showing a strong, positive correlation between a country’s neonatal male circumcision rate and its prevalence of ASD in boys.”

Today it is considered unacceptable practice to circumcise boys without proper pain relief but none of the most common interventions used to reduce circumcision pain completely eliminates it and some boys will endure strongly painful circumcisions. The researchers say that the pain associated with circumcision in very young babies is likely to be more severe during the operation and post-operatively.

Painful experiences in neonates have been shown in animal and human studies to be associated with long-term alterations in pain perception, a characteristic often encountered among children with ASD.

“Possible mechanisms linking early life pain and stress to an increased risk of neurodevelopmental, behavioural or psychological problems in later life remain incompletely conceptualised,” said Professor Frisch. “Given the widespread practice of non-therapeutic circumcision in infancy and childhood around the world, our findings should prompt other researchers to examine the possibility that circumcision trauma in infancy or early childhood might carry an increased risk of serious neurodevelopmental and psychological consequences.”

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Notes to editors

Ritual circumcision and risk of autism spectrum disorder in 0- to 9-year-old boys - national cohort study in Denmark (DOI: 10.1177/0141076814565942:) by Morten Frisch and Jacob Simonsen will be published by the Journal of the Royal Society of Medicine at 00:05hrs (UK time) on Friday 9 January 2015.

For further information or a copy of the paper please contact:
Rosalind Dewar
Media Office, Royal Society of Medicine
DL +44 (0) 1580 764713
M +44 (0) 7785 182732
.(JavaScript must be enabled to view this email address)

Professor Morten Frisch, MD, PhD, DSc(Med)
Department of Epidemiology Research
Statens Serum Institut
Copenhagen
Denmark
Phone: +45 3268 3160
.(JavaScript must be enabled to view this email address)

The JRSM is the flagship journal of the Royal Society of Medicine and is published by SAGE. It has full editorial independence from the RSM. It has been published continuously since 1809. Its Editor is Dr Kamran Abbasi.

SAGE is a leading international publisher of journals, books, and electronic media for academic, educational, and professional markets. Since 1965, SAGE has helped inform and educate a global community of scholars, practitioners, researchers, and students spanning a wide range of subject areas including business, humanities, social sciences, and science, technology, and medicine. An independent company, SAGE has principal offices in Los Angeles, London, New Delhi, Singapore and Washington DC.

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Rosalind Dewar
.(JavaScript must be enabled to view this email address)

Journal of the Royal Society of Medicine

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