Because ingestion is believed to be a major exposure route for HBCD (Covaci et al. 2006), and to examine stereoisomer-specific dietary concentrations from food consumed by the U.S. population, we report here, for the first time, concentrations of α-, β-, and γ-HBCD stereoisomers in selected foods from supermarkets in Dallas, Texas.
We describe for the first time betatrophin concentrations in humans, and report that circulating concentrations of betatrophin are increased in type 1 diabetes in contrast with what has recently been described in an insulin-deficient mouse model [ 3].
The present study measured for the first time betatrophin concentrations in humans and tested the hypothesis that there would be no difference in circulating betatrophin concentrations between patients with type 1 diabetes and healthy individuals.
For the first time, rich concentrations of the element boron have been found in Isua's ancient marine rocks, study author Takeshi Kakegawa, a professor at Tohoku University in Japan, said Monday (June 9).
Dr. David Melzer of the Peninsula Medical School in Exeter, Britain, and his colleagues took advantage of results from the 2003-04 U.S. National Health and Nutrition Examination Survey, which for the first time measured concentrations of BPA in urine from a representative sample of 1,455 adults.
"With ALMA's superb resolution and sensitivity, we can clearly see for the first time massive concentrations of cold gas being jettisoned by expanding shells of intense pressure created by young stars," study co-author Alberto Bolatto, astronomy professor at the University of Maryland, said in a written statement.
We report here for the first time the concentrations of parabens among children and adolescents.
In the present study, we show for the first time that concentrations of NT-proBNP, MR-proANP, and MR-proADM are significantly associated with increased aortic stiffness at the chronic phase after STEMI.
The 27-hour observation allowed scientists to measure for the first time the concentration of oxygen, neon, magnesium, and silicon in the bubbles and the disk.
In May 2013, it was big news when, for the first time, the concentration of carbon dioxide in the atmosphere hit 400 parts per million.
This study reports for the first time the concentration-dependence of this effect and the β-adrenoceptor subtype responsible.
