OBJECTIVETo evaluate a calculating method of wound water loss (WWL) in hospitalized burn patients.

METHODSEighty-five adult burn patients with total burn area over 50% were enrolled in the study. The WWL formula after shock stage (after 3rd postburn day) was given as: WWL (ml/%/kg/24 h) = [input (ml/24 h)-urine output (ml/24 h)-500 ml] / actual burn wound area(%) / body weight (kg). The result was compared with that determined by other formulas such as Davies, S.M.S.P and Lamke and palm rule.

RESULTSThe calculated daily WWL in burn patients after shock stage was found out to be 0.9 +/- 0.1 ml/%/kg/24 h by this method. This figure is comparable with that calculated by several different methods. Palm rule could be simply applied in the patients with body weight around 60 kg.

CONCLUSIONThis method and palm rule were proved to be simple and practical for the calculation of WWL in burn patients, which could be applied in clinical work.

Adolescent ; Adult ; Algorithms ; Body Water ; metabolism ; Burns ; metabolism ; physiopathology ; Female ; Humans ; Male ; Middle Aged ; Water Loss, Insensible ; Water-Electrolyte Imbalance

For developing race-specific anthropometry-based total body water (TBW) equations, we measured TBW using bioelectrical impedance analysis (TBW(BIA)) in 2,943 healthy Korean adults. Among them, 2,223 were used as a reference group. Two equations (TBW(K1) and TBW(K2)) were developed based on age, sex, height, and body weight. The adjusted R2 was 0.908 for TBW(K1) and 0.910 for TBW(K2). The remaining 720 subjects were used for the validation of our results. Watson (TBW(W)) and Hume-Weyers (TBW(H)) formulas were also used. In men, TBW(BIA) showed the highest correlation with TBW(H), followed by TBW(K1), TBW(K2) and TBW(W). TBW(K1) and TBW(K2) showed the lower root mean square errors (RMSE) and mean prediction errors (ME) than TBW(W) and TBW(H). On the Bland-Altman plot, the correlations between the differences and means were smaller for TBW(K2) than for TBW(K1). On the contrary, TBW(BIA) showed the highest correlation with TBW(W), followed by TBW(K2), TBW(K1), and TBW(H) in females. RMSE was smallest in TBW(W), followed by TBW(K2), TBW(K1) and TBW(H). ME was closest to zero for TBW(K2), followed by TBW(K1), TBW(W) and TBW(H). The correlation coefficients between the means and differences were highest in TBW(W), and lowest in TBW(K2). In conclusion, TBW(K2) provides better accuracy with a smaller bias than the TBW(W) or TBW(H) in males. TBW(K2) shows a similar accuracy, but with a smaller bias than TBW(W) in females.
Adult ; *Algorithms ; Anthropometry ; Body Height ; Body Water/*metabolism ; Body Weight ; Comparative Study ; Female ; Humans ; Korea ; Linear Models ; Male ; Middle Aged

Even though we drink and excrete water without recognition, the amount and the composition of body fluid remain constant everyday. Maintenance of a normal osmolality is under the control of water balance which is regulated by vasopressin despite sodium concentration is the dominant determinant of plasma osmolality. The increased plasma osmolality (hypernatremia) can be normalized by the concentration of urine, which is the other way of gaining free water than drinking water, while the low plasma osmolality (hyponatremia) can be normalized by the dilution of urine which is the only regulated way of free water excretion. On the other hand, volume status depends on the control of sodium balance which is regulated mainly by renin-angiotensin-aldosterone system, through which volume depletion can be restored by enhancing sodium retention and concomitant water reabsorption. This review focuses on the urine concentration and dilution mechanism mediated by vasopressin and the associated disorders; diabetes insipidus and syndrome of inappropriate antidiuretic hormone secretion.
Body Fluids ; Diabetes Insipidus ; Drinking Water ; Hand ; Metabolism* ; Osmolar Concentration ; Plasma ; Renin-Angiotensin System ; Sodium ; Vasopressins

This study was designed to investigate the effects of pyroligneous liquor on lipid metaboilsm in serum of SPF/VAF Cri/ Bgi CD rats. Male CD rats were fed basic diet prepared in our Lab., and PL-0 ( control) , PL-1, PL-25, PL-50, PL-75 groups were prepared with pyroligneous liquor ( 35% of Choa Co. Ltd.) of 0%, 1%, 25%, 50% and 75% in purified water per day for 8 weeks. Body weights and food intakes almost did not change in these five groups, and triglyceride ( TG) levels were significantly decreased ( 20.5% and 19.5%, respectively) in these PL-25 and PL-50 groups compared with control group. Total and LDL-cholesterol levels were markedly decreased ( 20.7%, 16.3% and 20.3 %, 116.9%, respecti-vely) in these PL-25 and PL-50% groups, but HDL-cholesterol levels were significantly increased about 36.4% and 25.5% in serum of PL-25 and PL-50 groups compared with control group. Atherogenic indices were also remarkedly decreased ( 63.0%, and 50%, respectively) in these PL-25 and PL-50 groups compared with control group. These results suggest that long term administration orally of pyroligneous liquor in 25 to 50% may inhibit chronic degenerative disease through improving of lipid metabolism of lower TG & LDL-cholesterol and higher HDL-cholesterol, and lower AJ.
Animals ; Body Weight ; Diet ; Humans ; Lipid Metabolism* ; Male ; Rats* ; Triglycerides ; Water

PURPOSE: We wanted to evaluate the effect of body composition and age on the metabolic responses before and after elective colorectal resection. METHODS: We studied 20 active, healthy patients who underwent elective colorectal surgery. Their body composition was measured by using a Bioelectrical Impedance Analyzer. The O2 and CO2 consumption (VO2 and VCO2), respiratory quotient (RQ) and resting energy expenditure (REE) were measured by Indirect Calorimetry with using a Ventilated Hood System. RESULTS: The median age was 55 year (range: 35~70 year). The serum glucose, cortisol, insulin, C-reactive protein, cathecholamine and total body water (TBW), postoperative mean VO2, VCO2 and REE were all independent of patient age. The REE increased 9+/-4.3% after operation, but this increase was not related to age. The TBW was strongly related with the preoperative VO2 and VCO2, and the preoperative REE (r2=0.42~0.57, P<0.001). The postoperative VO2, VCO2 and REE were dependent on the TBW. The preoperative REE was dependent on the age, gender, preoperative TBW and body muscle mass (r2=0.526, P<0.000). The postoperative REE was dependent on the TBW and it was strongly related with the preoperative value (r2=0.796, P< 0.000). The postoperative day change of the REE was dependent on the postoperative day change of the TBW (r2=0.700, P=0.04). CONCLUSION: The TBW was not related to age. The TBW was the most valuable index to predict the change of the postoperative REE. Therefore, the preoperative TBW may be considered as the meaningful indicator to predict the change of the postoperative REE.
Blood Glucose ; Body Composition* ; Body Water ; C-Reactive Protein ; Calorimetry, Indirect ; Colorectal Surgery* ; Electric Impedance ; Energy Metabolism ; Humans ; Hydrocortisone ; Insulin

OBJECTIVES: The objective of this study is to identify alcohol pharmacokinetics and to investigate the correlations between various factors for alcohol metabolism of healthy Korean males. METHODS: The 101 recruited volunteers were randomized into two groups as one group provided 0.35 mg/mL/kg and 0.7 mg/mL/kg, the other. Blood alcohol concentration was measured and analyzed in enzymatic methods eight times from drinking point. RESULTS: Alcohol elimination rate (beta) was found to be -0.0083%/h for low dose group and -0.0157%/h for the high dose group. The results indicate discrepancy in the legal criteria of alcohol elimination rate (-0.008%/h). The measured alcohol pharmacokinetic properties were following : mean time to reach maximum alcohol concentration in blood was 30 minutes, absorption rate was 0.0197%, maximum alcohol concentration in blood was 0.4930%, and Area under the curve was 59.25. Also, alcohol elimination was not affected by age, smoking, total body water, drinking capacity, body mass index, blood cholesterol, body fat, and body fat ratio. CONCLUSION: These results suggest that legal limitation could be adjusted in Korean males. Also the research should be extended including female and senior citizens for statistical significance of the research. These findings have contributed to our knowledge of the alcohol pharmacokinetics in Korean male.
Absorption ; Adipose Tissue ; Adult* ; Body Mass Index ; Body Water ; Cholesterol ; Drinking ; Female ; Humans ; Male* ; Metabolism ; Pharmacokinetics* ; Smoke ; Smoking ; Volunteers

PURPOSE: The study was conducted to investigate the skin hydration level in various body sites and identify the influencing factors in neonates. METHODS: An exploratory comparison study was designed to measure the stratum corneum hydration, using a National DM-R2 on the forehead, abdomen, buttocks, and the back of the hands and feet of 198 neonates including 92 premature infants. RESULTS: The results showed 32.7%-36.5% of stratum corneum hydration for all sites. Premature infants revealed a higher hydration level on the peripheral sites (dorsal hand and feet) than those of the full-term infants, possibly resulting from therapeutic regimens including an incubator or radiant warmer. Infants in an incubator showed a higher hydration level than those in radiant warmers, suggesting more attention to fluid management for infants in the open environment. In addition, all stratum corneum hydration measurements except one, from the forehead, showed a positive correlation with postnatal age in full-term infants while showing no relation to any measurements in premature infants. CONCLUSION: The study demonstrated the very low skin hydration levels in hospitalized neonates, particularly in premature neonates with more susceptible skin hydration instability despite therapeutic interventions for fluid balance. More vigilant fluid management is imperative in neonates, particularly those in the open environment.
Body Water/*metabolism ; Demography ; Epidermis/*metabolism ; Female ; Humans ; Incubators, Infant ; Infant, Newborn ; Infant, Premature ; Male ; Phototherapy/methods ; *Skin Physiological Phenomena ; Water Loss, Insensible

PURPOSE: This study was designed to determine the effects of a school-based obesity-management program on obese primary school children. METHODS: A total of 995 children (6-12 years old) in a primary school were screened in March 2008, and of those, 101 obese students (44 boys and 57 girls, body mass index (BMI) > or = 95 percentile) were enrolled for a study group. The school-based, obesity management program, which includes physical exercise and nutritional education, was conducted as part of an extracurricular program for 12 weeks. The measurement of height, weight, waist circumference, blood pressure (BP), and bioelectrical impedance analysis (BIA) was performed before and after the program. RESULTS: Height and weight increased significantly (P<0.05). The BMI and obesity index decreased significantly (P<0.01). Systolic and diastolic BP decreased significantly (P<0.01). BMI decreased in 61.4% of boys and 66.7% of girls. Protein and basal metabolic rate (BMR) increased significantly on the BIA (P<0.01). Fat decreased significantly (P<0.05). The total body water (TBW) and percent body fat (PBF) decreased significantly (P<0.01). The changes in protein, fat, TBW, PBF, and BMR significantly correlated to the change in BMI (P<0.05). In a multiple logistic regression analysis, BMI change was significantly correlated to the changes in protein and fat content (P<0.01). CONCLUSION: The school-based obesity management program is a very effective way to manage obesity for obese primary school children.
Adipose Tissue ; Basal Metabolism ; Blood Pressure ; Body Composition ; Body Mass Index ; Body Water ; Child ; Electric Impedance ; Exercise ; Humans ; Logistic Models ; Obesity ; Waist Circumference

BACKGROUND: Groundwater is believed to possess many beneficial effects due to its natural source of various minerals. In this study, we examined the effects of natural Jeju groundwater S1 (Samdasoo(TM)), S2 and S3 pumped up from different locations of Jeju Island, Korea, along with local tap water, on body weight gain, serum lipids and lipoproteins, and liver histopathology in high-fat diet-induced hyperlipidemic rats. MATERIALS/METHODS: Rats were randomly and equally divided into 6 groups. Different water samples were supplied to the hyperlipidemic rats as their daily drinking water and the widely-used anti-hyperlipidemic drug simvastatin was used as a positive control. Body weight, serum lipids and lipoproteins were measured weekly. Liver weight, liver index and liver histopathology were examined after the execution of the rats. RESULTS: After drinking Jeju groundwaters for two months, S2 but not S3 significantly reduced weight growth and serum triglycerides levels and increased high density lipoprotein-C (HDL-C) without affecting total cholesterol or LDL-C. S1 and particularly S2 significantly reduced the severity of liver hypertrophy and steatosis. All Groundwaters had much higher contents of vanadium (S3>S2>S1>>tap water) whereas S1 and S2 but not S3 markedly blocked autoxidation of ferrous ions. CONCLUSION: Jeju Groundwater S1 and particularly S2 exhibit protective effects against hyperlipidemia and fatty liver and hypothesize that the beneficial effect of Jeju Groundwaters may be contributed from blockade of autoxidation of ferrous ions rather than their high contents of vanadium.
Animals ; Body Weight ; Cholesterol ; Drinking ; Drinking Water ; Fatty Liver ; Groundwater* ; Hyperlipidemias ; Hypertrophy ; Ions ; Korea ; Lipid Metabolism* ; Lipoproteins ; Liver ; Minerals ; Rats* ; Simvastatin ; Triglycerides ; Vanadium ; Water

To find reference total body water (TBW) values in healthy Korean adults, we performed single frequency bioelectrical impedance analysis on 2942 healthy adults and compared these data with those of normal western adults. Males were found to have greater TBW than females. Conversely, females were found to have greater percent fat (pFat) than males. In both sexes, body weight (BW) and TBW were significantly lower in age groups of < 30, 50 - 59, >or= 60 years than in the 40 - 49 years age group. pFats were significantly higher in age groups of 50 - 59 and >or= 60 years than in the 40 - 49 years age group. pFats were similar among age groups of < 30, 30 - 39, and 40 - 49 in both sexes. In all age groups, pFats were significantly higher in females than in males. TBW was significantly correlated with BW, height (HT), fat mass, and body mass index (BMI) in both sexes. There was a significant correlation between TBW and age in males(r=-0.15, p=0.00), but not in females (r=-0.02, p=0.45). On linear regression analysis, TBW values were independently associated with BW, HT and age in males and were independently associated with BW and BMI in females. In all age groups, Korean males and females had lower mean TBW than in Western populations. However, this difference was greater in males than in females. In summary, we represented the contemporary normal TBW data in healthy Korean adults. At present, there are no national reference data relating TBW in Korea. We hope the results of this study will be useful as the baseline data for the evaluation of hydration and nutritional status in healthy and ill adults, including end-stage renal disease (ESRD).
Adult ; Body Water/*metabolism ; Comparative Study ; Electric Impedance ; Female ; Human ; Korea ; Male ; Middle Age ; Reference Values ; Western World