Sentences with phrase «at nanogram»

In Cell Metabolism on August 13, the Harvard scientists who discovered irisin address this contentious issue by showing that human irisin circulates in the blood at nanogram levels and increases during exercise.

Not exact matches

The interdisciplinary project team is made up of eco - and human toxicologists, physicists, chemists and biologists, and they have just managed to take their first major step forward in achieving their goal: they have developed a method for testing a variety of environmental samples such as river water, animal tissue, or human urine and blood that can detect nanomaterials at a concentration level of nanogram per liter (ppb — parts per billion).

However, both 2,000 and 4,000 IUs restored the desirable levels of 30 nanograms per milliliter to individuals with previous levels of less than 20 ng / mL, levels which put them at high risk for bone - weakening rickets and potentially other maladies.

Phosphane is toxic to human lymphocytes at levels of a few nanograms per kilogram.

Researchers at São Paulo State University's Botucatu Medical School (FMB - UNESP) detected MetS in 57.8 % of the women analyzed with vitamin D insufficiency (20 - 29 nanograms per milliliter of blood) or deficiency (less than 20 ng / ml) and in only 39.8 % of participants with sufficient vitamin D (30 ng / ml or more).

Although irisin circulates at low levels (nanograms), this range is comparable to that observed for other important biological hormones such as insulin.

MP concentrations in plasma (nanograms per milliliter) did not differ between groups at 10 min (controls, 195 ± 51; abusers, 194 ± 45), 25 min (controls, 125 ± 24; abusers, 121 ± 19), or 40 min (controls, 102 ± 25; abusers, 94 ± 15).

To determine the effect of the conditioned medium on NGF - induced neurite outgrowth, PC12 cells were dissociated and plated on polyornithine - coated tissue culture dishes in the following conditions: 1) HT22 conditioned medium, 2) J147 treated HT22 conditioned medium, 3) DMEM alone plus J147, 4) DMEM plus NGF at 50 nanograms per ml, 5) J147 treated HT22 conditioned medium pre-incubated for one hour with 10 μg / ml anti-NGF and N2 supplement (Invitrogen).

What to do: A «25 - hydroxy vitamin D» test of your blood (taken from a vein at the docs office) can check your levels; normal is about 16 to 74 nanograms per milliliter.

But the levels of caffeine found in these areas is still relatively low — around 45 nanograms per litre compared to your typical cup of coffee at 500,000,000 nanograms per litre.