[Study of P50 and 2,3-diphosphoglycerate in 23 bronchoemphysema patients as a function of hypoxia and hemoglobin concentration].

2,3-DPG and P50 were measured in 23 patients with chronic obstructive lung disease. All patients had a chronic hypercapnia (PaCO2 greater than or equal to 45 Torr). They are shared in 3 groups, according to hemoglobin content [Hb] and hypoxia : group I(PaO2 = 48.

2,3-Diphosphoglycerate red cell concentration changes during the menstrual cycle in woman.

The authors showed that 2,3-DPG red cell concentration (2,3-DPG) WAS SIGNIFICANTLY HIGHER DURING THE LAST WEEK Of the menstrual cycle of five women (1.08+/-0.09 mol-,p;Hb-1) (M +/- 1 SE) THAN DURING THE First part and the last but one week of the cycle (0.