Listar Producción científica por autor "Beall, Cynthia M"

Mostrando ítems 1-5 de 5

    • Hemoglobin concentration of high-altitude Tibetans and Bolivian Aymara 

      Beall, Cynthia M; Brittenham, Gary M; Strohl, Kingman P; Blangero, John; Williams-Blanguero, Sarah; Goldstein, Melvyn C; Decker, Michael J; Vargas, Enrique; Villena, Mercedes; Soria, Rudy; Alarcón, Ana María; Gonzales, Cristina (American Journal of Physical Anthropology, 1998)
      Abstract. Elevated hemoglobin concentrations have been reported for high-altitude sojourners and Andean high-altitude natives since early in the 20th century. Thus, reports that have appeared since the 1970s describing ...

    • Percent of oxygen saturation of arterial hemoglobin among Bolivian aymara at 3,900-4000 m 

      Beall, Cynthia M; Almasy, Laura A; Blangero, John; Williams-Blangero, Sarah; Brittenham, Gary M; Strohl, Kingman P; Decker, Michael J; Vargas, Enrique; Villena, Mercedes; Soria, Rudy; Alarcón, Ana María; Gonzales, Cristina (American Journal of Physical Anthroplogy, 1999)
      ABSTRACT. A range of variation in percent of oxygen saturation of arterial hemoglobin (SaO2) among healthy individuals at a given high altitude indicates differences in physiological hypoxemia despite uniform ambient ...

    • Pulmonary nitric oxide in mountain dwellers 

      Beall, Cynthia M; Laskowski, Daniel; Strohl, Kingman; Soria, Rudy; Villena, Mercedes; Vargas, Enrique; Alarcón, Ana María; Gonzales, Cristina; Erzurum, Serpil C (NATURE, 2001-11-22)
      Nitric oxide is synthesized in the lungs to help regulate blood flow, and its levels have been found to drop in species native to low altitudes, including humans, upon acute exposure to reduced oxygen concentration1–3. ...

    • Seasonal and circadian variation in salivary testosterone in rural Bolivian men 

      Vitzthum, Virginia J; Worthman, Carol M; Beall, Cynthia M; Thornburg, Jonathan; Vargas, Enrique; Villena, Mercedes; Soria Sánchez, Rudy; Cáceres, Esperanza; Spielvogel, Hilde (American Journal of Human Biology, 2009-02-19)
      Abstract. Testosterone (T) plays a key role in the increase and maintenance of muscle mass and bone density in adult men. Life history theory predicts that environmental stress may prompt a reallocation of such investments ...

    • Ventilation and hypoxic ventilatory response of Tibetan and Aymara high altitude natives 

      Beall, Cynthia M; Strohl, Kingman P; Blangero, John; Williams-Blangero, Sarah; Almasy, Laura A; Decker, Michael J; Worthman, Carol M; Goldstein, Melvyn C; Vargas, Enrique (American Journal Physical Anthropology, 1997)
      ABSTRACT. Newcomers acclimatizing to high altitude and adult male Tibetan high altitude natives have increased ventilation relative to sea level natives at sea level. However, Andean and Rocky Mountain high altitude natives ...