Patients with sepsis are poorly protected against acute respiratory acid-base derangements due to a lower noncarbonic buffer power, which is caused both by reduction in the major buffers, i.e. hemoglobin and albumin, reduced buffering capacity of albumin. Electrolyte shifts from red blood cells determining variations strong ion difference mechanism during disorders.

Introduction The kidney maintains blood pH by filtering metabolic acids and regenerating blood buffers such as bicarbonate. During CRRT, pH is regulated in a comparable way, metabolic acids are filtered or dialysed and buffer is replaced to correct metabolic acidosis and compensate for the bicarbonate lost by filtration or diffusion. Lactate, bicarbonate, acetate and citrate are the available b...

It is well known that biochemical reactions take place in buffered media and that minor changes in hydrogen-ion concentration can affect profoundly the course of reactions. In the blood of man a variation of more than ±0.1 pH from the normal 7.4 is considered pathological, and a change greater than ±0.4 pH is usually fatal. The pH of the blood is maintained within these narrow limits by a syste...

Hepatic blood supply is uniquely regulated by the hepatic arterial buffer response (HABR), counteracting alterations of portal venous blood flow by flow changes of the hepatic artery. Hydrogen sulfide (H(2)S) has been recognized as a novel signaling molecule with vasoactive properties. However, the contribution of H(2)S in mediating the HABR is not yet studied. In pentobarbital-anesthetized and...

Agnathans, comprising lamprey and hagfish species, have been reported to be practically devoid of HCO3-/Cl- exchange across the red blood cell membrane. This suggests that the capacity of their haemoglobin (Hb) to remove H+ is essential for obtaining a high CO2-carrying capacity in the blood. Hydrogen ion titrations were performed on oxygenated and deoxygenated composite Hbs from river lamprey ...

abstract antioxidant capacity and quality of fruits usually changed during storage. in the current study, the changes of antioxidant capacity and postharvest quality of two blood (pigmented) orange cultivars (‘tarocco’ and ‘morro’) and ‘thompson navel’ orange, after 60 days storage at 7ºc and 90 rh% was investigated. during fruit storage weight loss, tss, ta, tss/ta, vitamin c, total phenol, an...