enero 2013 – Página 6 – Cátedra Internacional de Estudios Avanzados en Hidratación

The altered fluid distribution in obesity may reflect plasma hypertonicity.

OBJECTIVE: This study explored whether the increased extracellular relative to intracellular fluid (ECF/ICF) ratio in obesity mightreflect osmotic effects of elevated plasma solute concentrations. DESIGN: Cross-sectional, epidemiological survey. SETTING AND SUBJECTS: The present analysis used nationally representative data from the Third National Health and Nutrition Examination Survey on community-dwelling adults (aged 40-59 years) in the [...]

By CIEAH - ICASH|2017-05-21T03:18:10+00:00enero 31st, 2013|Documentos científicos, Regulation of water and electrolyte balance|Comentarios desactivados

Hydration in Advanced Cancer: Can Bioelectrical Impedance Analysis Improve the Evidence Base? A Systematic Review of the Literature.

CONTEXT: Decisions surrounding the administration of clinically assisted hydration to patients dying of cancer can be challenging because of the limited understanding of hydration in advanced cancer and a lack of evidence to guide health care professionals. Bioelectrical impedance analysis (BIA) has been used to assess hydration in various patient groupings, but evidence for its [...]

By CIEAH - ICASH|2017-05-21T03:17:46+00:00enero 31st, 2013|Cancer, Documentos científicos|Comentarios desactivados

A proposed method for assessing plasma hypertonicity in vivo

Indices ofÂ plasmaÂ hypertonicity, elevatedÂ plasmaÂ concentrations of solutes that draw fluid out of cells by osmosis, are needed to pursueÂ hypertonicityÂ as a possible risk factor for obesity and chronic disease. This paper proposes a new index that may be more sensitive to mildÂ hypertonicityÂ inÂ vivoÂ at a point in time than traditional measures. The index compares mean corpuscular volume (MCV) estimates from [...]

By CIEAH - ICASH|2017-05-21T03:17:43+00:00enero 31st, 2013|Documentos científicos, Regulation of water and electrolyte balance|Comentarios desactivados

Origins for the estimations of water requirements in adults.

Water homeostasis generally occurs without conscious effort; however, estimating requirements can be necessary in settings such as health care. This review investigates the derivation of equations for estimating water requirements. Published literature was reviewed for water estimation equations and original papers sought. Equation origins were difficult to ascertain and original references were often not cited. [...]

By CIEAH - ICASH|2017-05-21T03:18:09+00:00enero 31st, 2013|Assessment methodologies, Documentos científicos|Comentarios desactivados

High prevalence of plasma hypertonicity among community-dwelling older adults: results from NHANES III.

OBJECTIVE: Recent data suggest that as many as 50% ofÂ olderÂ adultsÂ may have hypertonicÂ plasma, an indicator of cell dehydration that predicts a range of adverse outcomes. To determine if aÂ prevalenceÂ of this magnitude could be real, this study used nationally representative data to estimate theÂ prevalenceÂ ofÂ hypertonicity, and to test for biologically plausible associations betweenÂ hypertonicity,Â olderÂ age, glucose dysregulation, hemoconcentration, reduced bioelectrical [...]

By CIEAH - ICASH|2017-05-21T03:17:44+00:00enero 31st, 2013|Assessment methodologies, Documentos científicos|Comentarios desactivados

Water intake and risk of breast cancer: a case-control study

Several studies have shown positive associations between diuretic beverage consumption and breast cancer risk (van der Brandt, 1995). Water consumption has been linked to reduced breast cancer risk in a pilot caseâ€“control study (Stookey et al. 1997). The study showed that plain water consumption (versus not drinking plain water) was associated with a 4.7 times [...]

By CIEAH - ICASH|2017-05-21T03:17:45+00:00enero 31st, 2013|Documentos científicos, Hydration and health|Comentarios desactivados

Hypertonic hyperglycemia progresses to diabetes faster than normotonic hyperglycemia.

To explore whether elevated plasma glucose might progress to diabetes via a mechanism that involves plasma hypertonicity, we evaluated the independent and joint effects of these variables on diabetes risk. Community-dwelling older adults (70+years), who reported no previous diagnosis of diabetes and had glucose levels below 200 mg/dl in the 1992 Duke EPESE survey, were [...]

By CIEAH - ICASH|2017-05-21T03:17:45+00:00enero 31st, 2013|Documentos científicos, Hydration and health|Comentarios desactivados

Plasma hypertonicity: another marker of frailty?

OBJECTIVES: To determine whetherÂ plasmaÂ hypertonicityÂ might be aÂ markerÂ of early frailty, this study tested the associations betweenÂ plasmaÂ hypertonicity, incident disability, and mortality in nondisabled older adults. DESIGN: Longitudinal, observational study. SETTING: Community-based. PARTICIPANTS: Older adults (> or =70), who reported no disability and gave blood in the 1992 Duke Established Populations for Epidemiologic Studies of the Elderly survey (n=705), [...]

By CIEAH - ICASH|2017-05-21T03:17:46+00:00enero 31st, 2013|Documentos científicos, Hydration and health|Comentarios desactivados

Influence of skin type, race, sex, and anatomic location on epidermal barrier function.

The intact skin represents a barrier to the uncontrolled loss of water, proteins, and plasma components from the organism. Owing to its complex structure, the epidermal barrier with its major layer, the stratum corneum, is the rate-limiting unit for the penetration of exogenous substances through the skin. The epidermal barrier is not a static structure. [...]

By CIEAH - ICASH|2017-05-21T03:17:43+00:00enero 31st, 2013|Documentos científicos, Hydration and skin|Comentarios desactivados

Interrelations between serum sodium concentration, serum osmolarity and totalexchangeable sodium, total exchangeable potassium and total body water.

Although much is known about the effects of changes in electrolyte and water balance on serum sodium concentration, the quantitative relationships between body composition and the concentration of sodium in serum have not been established. Also, no definitive study has been made of the correspondence between serum sodium concentration and total serum osmolarity. It is [...]

By CIEAH - ICASH|2017-05-21T03:17:46+00:00enero 31st, 2013|Body water content; body composition, Documentos científicos|Comentarios desactivados