J T Manning

Summary

Affiliation: University of Liverpool
Country: UK

Publications

  1. ncbi request reprint The ratio of 2nd to 4th digit length: a new predictor of disease predisposition?
    J T Manning
    School of Biological Sciences, University of Liverpool, Liverpool, UK
    Med Hypotheses 54:855-7. 2000
  2. ncbi request reprint The ratio of 2nd to 4th digit length and performance in skiing
    J T Manning
    School of Biological Sciences, University of Liverpool, Liverpool, UK
    J Sports Med Phys Fitness 42:446-50. 2002
  3. ncbi request reprint Second to fourth digit ratio: ethnic differences and family size in English, Indian and South African populations
    J T Manning
    School of Biological Sciences, The University of Liverpool, Liverpool, UK
    Ann Hum Biol 30:579-88. 2003
  4. ncbi request reprint The ratio of 2nd to 4th digit length: a proxy for testosterone, and susceptibility to HIV and AIDS?
    J T Manning
    School of Biological Sciences, University of Liverpool, UK
    Med Hypotheses 57:761-3. 2001
  5. ncbi request reprint The ratio of 2nd to 4th digit length: a proxy for transactivation activity of the androgen receptor gene?
    J T Manning
    School of Biological Sciences, University of Liverpool, Liverpool, UK
    Med Hypotheses 59:334-6. 2002
  6. ncbi request reprint Finger and toe ratios in humans and mice: implications for the aetiology of diseases influenced by HOX genes
    J T Manning
    School of Biological Sciences, University of Liverpool, UK
    Med Hypotheses 60:340-3. 2003
  7. ncbi request reprint The 2nd to 4th digit ratio and autism
    J T Manning
    Population and Evolutionary Biology Research Group, School of Biological Sciences, University of Liverpool, United Kingdom
    Dev Med Child Neurol 43:160-4. 2001
  8. ncbi request reprint 2nd to 4th digit ratio and a universal mean for prenatal testosterone in homosexual men
    J T Manning
    School of Biological Sciences, University of Liverpool, UK
    Med Hypotheses 61:303-6. 2003
  9. ncbi request reprint 2nd to 4th digit ratio and offspring sex ratio
    J T Manning
    Population Biology Research Group, School of Biological Sciences, University of Liverpool, Liverpool, UK
    J Theor Biol 217:93-5. 2002
  10. ncbi request reprint Maternal smoking during pregnancy and possible effects of in utero testosterone: evidence from the 2D:4D finger length ratio
    S Rizwan
    Child and Reproductive Health Group, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool L3 5QE, UK
    Early Hum Dev 83:87-90. 2007

Collaborators

Detail Information

Publications19

  1. ncbi request reprint The ratio of 2nd to 4th digit length: a new predictor of disease predisposition?
    J T Manning
    School of Biological Sciences, University of Liverpool, Liverpool, UK
    Med Hypotheses 54:855-7. 2000
    ..We suggest that 2D:4D ratio is predictive of these diseases and may be used in diagnosis, prognosis and in early life-style interventions which may delay the onset of disease or facilitate its early detection...
  2. ncbi request reprint The ratio of 2nd to 4th digit length and performance in skiing
    J T Manning
    School of Biological Sciences, University of Liverpool, Liverpool, UK
    J Sports Med Phys Fitness 42:446-50. 2002
    ..There is evidence that low 2D:4D ratio is associated with high prenatal and adult levels of testosterone, good visuo-spatial ability, protection against heart attack, high self-reported sporting attainment and good soccer ability...
  3. ncbi request reprint Second to fourth digit ratio: ethnic differences and family size in English, Indian and South African populations
    J T Manning
    School of Biological Sciences, The University of Liverpool, Liverpool, UK
    Ann Hum Biol 30:579-88. 2003
    ..Negative associations between male 2D:4D and family size and positive associations between female 2D:4D and family size have been found in some European populations...
  4. ncbi request reprint The ratio of 2nd to 4th digit length: a proxy for testosterone, and susceptibility to HIV and AIDS?
    J T Manning
    School of Biological Sciences, University of Liverpool, UK
    Med Hypotheses 57:761-3. 2001
    ..Infection rates may therefore be reduced by education and condom supply directed towards low 2D:4D adults...
  5. ncbi request reprint The ratio of 2nd to 4th digit length: a proxy for transactivation activity of the androgen receptor gene?
    J T Manning
    School of Biological Sciences, University of Liverpool, Liverpool, UK
    Med Hypotheses 59:334-6. 2002
    ..Findings from 2D:4D studies predict that short CAG length will be common in autism and Asperger's syndrome, while high numbers of CAG repeats will be found in men who are prone to early myocardial infarction...
  6. ncbi request reprint Finger and toe ratios in humans and mice: implications for the aetiology of diseases influenced by HOX genes
    J T Manning
    School of Biological Sciences, University of Liverpool, UK
    Med Hypotheses 60:340-3. 2003
    ....
  7. ncbi request reprint The 2nd to 4th digit ratio and autism
    J T Manning
    Population and Evolutionary Biology Research Group, School of Biological Sciences, University of Liverpool, United Kingdom
    Dev Med Child Neurol 43:160-4. 2001
    ..It was concluded that 2D:4D ratio may be a possible marker for autism which could implicate prenatal testosterone in its aetiology...
  8. ncbi request reprint 2nd to 4th digit ratio and a universal mean for prenatal testosterone in homosexual men
    J T Manning
    School of Biological Sciences, University of Liverpool, UK
    Med Hypotheses 61:303-6. 2003
    ..Speculations regarding the effect of early sex steroids on the health of male homosexuals should therefore focus on the effects of prenatal testosterone levels associated with 2D:4D ratios of between 0.96 and 0.97...
  9. ncbi request reprint 2nd to 4th digit ratio and offspring sex ratio
    J T Manning
    Population Biology Research Group, School of Biological Sciences, University of Liverpool, Liverpool, UK
    J Theor Biol 217:93-5. 2002
    ..We present evidence from three populations (English, Spanish and Jamaican) that 2D:4D is negatively related to sex ratio, independent of the sex and ethnicity of the parents...
  10. ncbi request reprint Maternal smoking during pregnancy and possible effects of in utero testosterone: evidence from the 2D:4D finger length ratio
    S Rizwan
    Child and Reproductive Health Group, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool L3 5QE, UK
    Early Hum Dev 83:87-90. 2007
    ..We compare the 2D:4D ratio of children whose mothers smoked during pregnancy with the 2D:4D of children whose mother did not smoke...
  11. ncbi request reprint The 2nd-4th digit ratio (2D:4D) and neck circumference: implications for risk factors in coronary heart disease
    B Fink
    Department for Sociobiology Anthropology, Institute for Zoology and Anthropology, University of Goettingen, Goettingen, Germany
    Int J Obes (Lond) 30:711-4. 2006
    ....
  12. ncbi request reprint 2nd to 4th digit ratios, fetal testosterone and estradiol
    S Lutchmaya
    Developmental Psychiatry Section, University of Cambridge, Douglas House, 18b Trumpington Road, Cambridge CB2 2AH, UK
    Early Hum Dev 77:23-8. 2004
    ..However, there are no studies which show direct relationships between fetal testosterone (FT), fetal estradiol (FE) and 2D:4D...
  13. ncbi request reprint Sex and ethnic differences in 2nd to 4th digit ratio of children
    J T Manning
    Department of Psychology, The University of Central Lancashire, Preston PR1 2HE, UK
    Early Hum Dev 80:161-8. 2004
    ..However, little is known of the patterns of sex and ethnic differences in the 2D:4D ratio of children...
  14. ncbi request reprint Second to fourth finger ratio and possible precursors of developmental psychopathology in preschool children
    J H G Williams
    Department of Child Health, The Medical School, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD, UK
    Early Hum Dev 72:57-65. 2003
    ..Behaviours such as hyperactivity and poor social cognition are common in preschoolers. An association between 2D:4D and these possible precursors of psychopathology would be most readily identified in this group...
  15. ncbi request reprint "Constitutive" skin pigmentation: a marker of breast cancer risk?
    J T Manning
    Department of Psychology, University of Central Lancashire, Preston PR1 2HE, UK
    Med Hypotheses 63:787-9. 2004
    ..Scores for 'constitutive' skin pigment may therefore be predictive of risk for breast cancer and low scores could be used to identify individuals at high risk...
  16. ncbi request reprint Second to fourth digit ratio (2D:4D) and testosterone in men
    J T Manning
    Department of Psychology, University of Central Lancashire, Preston PR1 2HE, UK
    Asian J Androl 6:211-5. 2004
    ..To investigate the relationship between 2D:4D and testosterone in men attending an infertility clinic and men drawn from the general population...
  17. ncbi request reprint Second to fourth digit ratio, body mass index, waist-to-hip ratio, and waist-to-chest ratio: their relationships in heterosexual men and women
    B Fink
    Ludwig Boltzmann Institute of Urban Ethology, University of Vienna, Austria
    Ann Hum Biol 30:728-38. 2003
    ....
  18. ncbi request reprint The ratio of second to fourth digit lengths: a marker of impaired fetal growth?
    G Ronalds
    MRC Environmental Epidemiology Unit, Southampton General Hospital, Tremona Road, SO16 6YD, Southampton, UK
    Early Hum Dev 68:21-6. 2002
    ..Recent studies have suggested that the ratio of the length of the second finger relative to the length of the fourth finger (2D:4D ratio) is determined during fetal life and may be such a marker...
  19. ncbi request reprint The androgen receptor gene: a major modifier of speed of neuronal transmission and intelligence?
    J T Manning
    Department of Psychology, University of Central Lancashire, Preston, UK
    Med Hypotheses 68:802-4. 2007
    ..In support of the model I discuss the link between the X-chromosome and g, the comparative structure of the AR gene in the primates, and the variation in CAGn and g in human ethnic groups...