Internet and Psychiatry
  • Home
    • Editorials
    • Research news
    • Research papers
    • Interviews with eminent psychiatrists
    • Ten years ago
    • Fifteen years ago
  • Topics
    • Alcohol and Drug Abuse
    • Anxiety Disorders
    • Biomedical Science
    • Compulsive gambling
    • Disaster Medicine
    • Education
    • General Medicine
      • Acupuncture
      • Physical medicine and Rehabilitation
    • Human Rights
    • Interviews with eminent psychiatrists
    • Mood Disorders
      • Bipolar Disorder
      • Depression
      • Seasonal Affective Disorder
    • Neurological Disorders
    • Other Psychiatric Disorders
    • Posttraumatic Stress Disorder
    • Sexual Behavior
  • Books
    • Comorbidity of Depression and Alcohol Use Disorders
    • “Immigration and Mental Health” chapter abstracts
    • “Internet and Suicide” chapter abstracts
    • “Neurobiology of PTSD” chapter abstracts
    • “Suicidal Behavior in Alcohol…” chapter abstracts
    • “Suicide in the Military” chapter abstracts
    • “Terror and Suicide” chapter abstracts
    • “War and Suicide” chapter abstracts
  • Editors
    • Leo Sher, M.D.
    • Alexander Vilens, M.S.
  • Guests
    • Distinguished Guests
    • Our Contributors
  • Reflections
    • Poetry
    • Quotes

Biomedical Science

Strong Amerind/white sex bias and a possible Sephardic contribution among the founders of a population in northwest Colombia

April 15, 2012

Carvajal-Carmona LG, Soto ID, Pineda N, Ortíz-Barrientos D, Duque C, Ospina-Duque J, McCarthy M, Montoya P, Alvarez VM, Bedoya G, Ruiz-Linares A.
Am J Hum Genet. 2000 Nov;67(5):1287-95.

Historical and genetic evidences suggest that the recently founded population of Antioquia (Colombia) is potentially useful for the genetic mapping of complex traits. This population was established in the 16th-17th centuries through the admixture of Amerinds, Europeans, and Africans and grew in relative isolation until the late 19th century. To examine the origin of the founders of Antioquia, we typed 11 markers on the nonrecombining portion of the Y chromosome and four markers on mtDNA in a sample of individuals with confirmed Antioquian ancestry. The polymorphisms on the Y chromosome (five biallelic markers and six microsatellites) allow an approximation to the origin of founder men, and those on mtDNA identify the four major founder Native American lineages. These data indicate that approximately 94% of the Y chromosomes are European, 5% are African, and 1% are Amerind. Y-chromosome data are consistent with an origin of founders predominantly in southern Spain but also suggest that a fraction came from northern Iberia and that some possibly had a Sephardic origin. In stark contrast with the Y-chromosome, approximately 90% of the mtDNA gene pool of Antioquia is Amerind, with the frequency of the four Amerind founder lineages being closest to Native Americans currently living in the area. These results indicate a highly asymmetric pattern of mating in early Antioquia, involving mostly immigrant men and local native women. The discordance of our data with blood-group estimates of admixture suggests that the number of founder men was larger than that of women.

Related Posts

Biomedical Science /

The sorting receptor SorCS1 regulates trafficking of neurexin and AMPA receptors

Biomedical Science /

Blast exposure induces post traumatic stress disorder-related traits in a rat model of mild traumatic brain injury

Biomedical Science /

Implications for health and disease in the genetic signature of the Ashkenazi Jewish population

‹ Perceived Prevalence and Definitions of Sexual Dysfunction as Predictors of Sexual Function and Satisfaction › Mental illness among journalists: A systematic review

Editorials

  • Making space for pregnancy in compassionate use
  • COVID-19 and suicide
  • Pregnancy and COVID-19
  • Physician distress and relief during the coronavirus pandemic

Research Papers

  • Examination of depressive signs and symptoms among 803 University students in seven Universities and Colleges. Hungary, Romania, Serbia.
  • Examination of spirituality and the dimensions of spirituality among 803 students in seven different Universities. Hungary, Romania and Serbia.
  • Examination of depressive signs and symptoms among 932 students in eight different secondary schools in Hungary
  • Examination of psychological immune system among 932 students in eight different secondary schools in Hungary

Research News

  • Traumatic memory reactivation with or without propranolol for PTSD and comorbid major depression symptoms
  • COVID-19 prevalence and mortality among patients with schizophrenia
  • Bidirectional relations between COVID-19 and psychiatric disorders
  • Mental health problems among healthcare professionals during the COVID-19 crisis

Latest News

  • Suicide rates decreased in the United States
  • American Psychiatric Association Position Statement on Use of the Terms Client and Provider
  • Leading world experts on suicide. Expertscape, the January 31, 2021 report
  • Leading world experts on suicide. Expertscape, December 2020

Interviews with eminent psychiatrists

  • Interview with Professor Shih-Ku Lin
  • Interview with Professor Masahito Fushimi
  • Interview with Professor Maurizio Pompili
  • Interview with Professor Marco Sarchiapone

Ten Years Ago

  • Posttraumatic stress disorder and the Neuroevolutionary Time-depth Principle
  • The role of endogenous opioids and monoamine neurotransmitters in non-suicidal self-injury
  • The 2003 SARS outbreak and suicide among older adults
  • Objections to suicide among mood disordered patients with co-occurring alcohol use disorders

Back to Top

  • About
  • Contact
  • Privacy Policy
  • Terms and Conditions
Copyright © 2021 AVCalc LLC. All rights reserved worldwide.