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High mitochondrial mutation rates estimated from deep-rooting Costa Rican pedigrees
(American Journal of Physical Anthropology 2012 July ; 148(3): 327–333., 2012-07)
Estimates of mutation rates for the noncoding hypervariable Region I (HVR-I) of mitochondrial
DNA (mtDNA) vary widely, depending on whether they are inferred from phylogenies (assuming
that molecular evolution is clock-like) ...
Mitochondrial polymorphisms are associated both with increased and decreased longevity
(Hum Hered 2009;67:147–153, 2008-12-15)
Previous work compared frequency of longevity-associated polymorphisms (LAPS) in long-lived individuals and in controls from the general population (primarily in Europe and Japan), suggesting the polymorphisms are responsible ...
Genetic Structure Analysis of Three Hispanic Populations from Costa Rica, Mexico, and the Southwestern United States Using Y-Chromosome STR Markers and mtDNA Sequences
(Human Biology, October 2006, v. 78, no. 5, pp. 551–563., 2006)
Two hundred seventeen male subjects from Costa Rica, Mexico,
and the Hispanic population of the southwestern United States were
studied. Twelve Y-chromosome STRs and the HVSI sequence of the mtDNA
were analyzed to ...
Una hipótesis evolutiva sobre la ausencia del antígeno (Di-a) en Amerindios chibchas
(1990)
Se estudiaron 141 tribus amerindias de todo
el continente y esquimales de Alaska y Canadá
en relación con el grupo sanguíneo Diego. Se
encontró que 26 (18%) no presentaron el antígeno
Di-a y de estas 20 (77%) pertenecían ...
Mortalidad por cáncer de cuello del útero en Costa Rica
(Acta Médica Costarricense 28(1) p 57-61 ., 1981)
Se analizó la mortalidad por cáncer del
cuello del útero en Costa Rica con datos de
los tabulados de las Estadisticas Vitales de
la Dirección General de Estadística y Censos.
Se computarízaron y calcularon las tasas ...
Demografía y genética de la población amerindia Guaymí de Limoncito, Costa Rica
(Revista de Biología Tropical 29(1):123-131, 1981)
El estudio de las poblaciones indígenas es muy importante para la comprensión de la estructura cultural, genética y ecológica de los grupos humanos. En las últimas dos décadas se ha desarrollado un intenso trabajo teórico ...
Grupos sanguíneos ABO y Rh y proteínas séricas en una población amerindia, Matambú, Costa Rica
(1985-06)
Se llevó a cabo un estudio de la estructura genética de la población de Matambú, Costa Rica, utilizando marcadores genéticos de 6 loci que incluyen los grupos sanguíneos ABO y Rh y la albilmina, ceruloplasmina, haptoglobina ...
mtDNA variation in the chibcha ameridian huetar from Costa Rica
(1994)
The genetic variation in a Chibcha-speaking Amerindian tribe from lower Central America, the Huetar, was analyzed using nucleotide sequences of the hypervariable segments of the mitochondria! DNA (mtDNA) control region, ...
Mitochondrial DNA “clock” for the Amerinds and its implications for timing their entry into North America
(1994-02)
Students of the time of entry of the ancestors of the Amerinds into the New World are divided into two camps, one favoring an "early" entry [more than approximately 30,000 years before the present (YBP)], the other favoring ...
Genetic variation and racial admixture in the Miskito of the southern Mosquito Shore, Nicaragua
(1998)
A survey of the electrophoretic variation at eleven loci red-blood cell enzymes. hemoglobins and serum proteins was performed on a sample of 59 Miskitos stemming from the southernmost part of the Mosquito shore of Nicaragua. ...