Thursday, April 19, 2007

Is this Information in the Biology Textbooks By Now? This paper is from 1999

It is now 2007 and most of the public has no idea of this. This paper was published before the very large study showing that the risk of schizphrenia increases with rising paternal age and there have been nine more studies showing this in different parts of the world. IS THIS TAUGHT IN HIGH SCHOOLS ALONG WITH THE CURRICULUM TO DISCOURAGE EARLY PREGNANCY? SHOULD IT BE TAUGHT?

Table II. Long-term effects of paternal ageing on offspring from table on page 2373 of Long –term effects of delayed parenthood by J.J. Tarin, J. Brines, and A. Cano

Dominant disorders
Wilms tumour, thanatophoric dysplasia, retinitis pigmentosa, osteogenisis imperfecta type IIA, acrodysostosis, achondroplasia, Apert’s disease, fibrodysplasia ossificans progressiva, aniridia, bilateral retinoblastoma, multiple exostoses, Marfan’s, Lesch-Nyan’s, Pfeiffer’s, Wardenburg’s, Treacher-Collins, Soto’s, and Crouzon’s syndromes, basel cell nevus, cleidocranial dysostosis, polyposis coli, oculodentodigital syndrome, Costello syndrome , progeria, Recklinghausen’s neurofibromatosis, tuberous sclerosis and renal polycystic kidney disease.

X-linked recessive diseases
Haemophilia A and Duchenne’s muscular dystrophy

Non-cytogenetic congential defects
Congential cataracts, reduction defects of the upper limb, nasal aplasia, pulmonic and urethtal stenosis, perauricular cyst, cleft palate,1 neural tube defects

Athetoid /dystonic cerebral palsy and congenital hemiplegia

Psychotic disorders

Decreased learning capacity and/or mental retardation

Moreover, (i) the activities of antioxidant enzymes within the seminal plasma and spermatozoa from older men may be reduced and so spermatozoa may be more vulnerable to mutational changes than spermatozoa from younger men; and (ii) late spermatids, and immature and mature spermatozoa do not have a DNA repair system.

posted by concerned heart at 8:37 PM | 0 comments

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