WebJul 16, 2007 · The genetic factors, which are rare, mainly affect the enzymes involved in thyroxin synthesis. Environmental factors are amongst the most common factors that interfere in thyroxin synthesis and lead to goiter formation. ... Iodine deficiency has been identified as the world’s major cause of preventable mental retardation. Its severity can ... WebMental retardation, seizures, breathing problems, learning disabilities, bladder and bowel control problems, skeletal deformities, eating difficulties, dental problems, digestive problems, and hearing and vision problems are often linked to cerebral palsy. The severity of these problems varies widely, from very mild and subtle to very profound.
Causes of Mental Retardation - Psychologenie
WebMar 1, 2011 · Intellectual disability can be caused by any condition that impairs development of the brain before birth, during birth or in the childhood years. Several hundred causes have been discovered, but in about one-third of the people affected, the cause remains unknown. The three major known causes of intellectual disability are WebCauses. There are many different causes of intellectual disability. It can be associated with a genetic syndrome, such as Down syndrome or Fragile X syndrome. It may develop … hills and harbour distillery
The Genetics of Mental Retardation IntechOpen
WebJan 9, 2013 · Down syndrome is the most frequent genetic cause of mental retardation. Results of standardized intelligence test IQ scores, in Down syndrome, may vary from low normal to severely retarded 85-20, dependent on the degree of cognitive deficits. WebThe Rh antigens maintain the integrity of the RBC membrane and therefore, RBCs which lack Rh antigens have an abnormal shape. There are two types of Rh deficiency syndrome: The regulator type is associated with many different changes in the RHAG gene . The amorph type is caused by inactive copies of a gene (silent alleles) at the RH locus. WebRh incompatibility occurs when a mother has Rh-negative blood and the baby has Rh-positive blood. The mother’s body will produce an auto-immune response that attacks the fetus or newborn’s blood cells as if they were a bacterial or viral invader. This immune response is fairly slow to develop and is rarely a serious issue in first pregnancies. smart forfour body panels