objectives: the aim of this study was to identify the role of attentional process in postural control using choice reaction time task while changing the visual and proprioceptive cues under difficult balance task (standing on one-leg). methods: this cross-sectional study was conducted by participating 20 young people (22.75±2.29). each subject performed one-leg standing as balance task for each...

This paper attempts to illustrate historically how important developments in the comparatively new field of physical chemistry during the second half of the 19th century made possible the understanding of ions and acid-base phenomena in clinical and laboratory medicine. Primarily based upon the revolutionary concept of ionization by Svante Arrhenius, it was the studies of two Americans, Lawrenc...

Objective: To review the normal human acid-base physiology and the pathophysiology and management of acid-base disturbances in a two-part presentation. Data sources: Articles and published peer-review abstracts and a review of studies reported from 1990 to 2000 and identified through a MEDLINE search of the English language literature on acid-base balance. Summary of review: In a healthy indivi...

The processing of seawater by the marine teleost fi sh intestine includes high rates of base (bicarbonate) secretion into the intestinal fl uids. The resulting high bicarbonate concentrations in the intestinal fl uids combine with the calcium in the ingested seawater to form calcium carbonate crystals. This process is important for the salt and water balance of the marine teleost fi sh and lead...

BACKGROUND/AIMS Vascular calcification (VC), a major complication in humans and animals with chronic kidney disease (CKD), is influenced by changes in acid-base balance. The purpose of this study was to describe the acid-base balance in uremic rats with VC and to correlate the parameters that define acid-base equilibrium with VC. METHODS Twenty-two rats with CKD induced by 5/6 nephrectomy (5/...

While long term disturbances in the acid–base balance can disturb the normal growth and development, acute short term, but severe changes in pH, can also be drastic. The body's acid base balance is maintained by different organ systems, including the lungs and the kidneys, along with the intracellular and extracellular buffer systems. A human body’s normal pH ranges from 7.35-7.45. pH and hydro...

tion. The APS Constitution and Bylaws appears in the FASEB Membership Directory. Officers: President, Alfred P. Fishman, University of Pennsylvania Hospital, Philadelphia, PA; President-Elect, John B. West, University of California, La Jolla, CA; Past President, Walter C. Randall, Loyola University, Maywood, IL; Council, Alfred P. Fishman, John B. West, Walter C. Randall, Franklyn G. Knox, Jack...

There are many disorders/diseases that lead to changes in acid base balance. These conditions are not rare or uncommon in clinical practice, but everyday occurrences on the ward or in critical care. Conditions such as asthma, chronic obstructive pulmonary disease (bronchitis or emphasaemia), diabetic ketoacidosis, renal disease or failure, any type of shock (sepsis, anaphylaxis, neurogenic, car...