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Biomedical subjects

S D Kim

Publications and source records attributed to S D Kim.

79 records · Page 5Linked to original sources
PubMedDate not supplied

The survey of PCDDs and PCDFs in the ambient air of the urban and industrial sites in Korea, 1998-99.

A comprehensive quality survey for PCDDs/PCDFs in ambient air has been studied in Korea for two years. Monitoring was undertaken at two locations throughout Seoul (urban site) and Incheon (industrial site) in winter and spring. The periods are during 16 to 17 March 1998, 21 to 22 January 1999 and 28 to 29 April 1999 (Seoul) and 25 to 26 March 1998, 18 to 19 January 1999 and 26 to 27 April 1999 (Incheon). The values of PCDDs/PCDFs in ambient air were expressed as concentrations and international TEF values. The contents of PCDDs/PCDFs in urban site (Seoul) were lower than in industrial site (Incheon). The measurements in wintertime were higher than in springtime. The contents of 2,3,4,7,8-PeCDF with half toxicity of 2,3,7,8-TCDD were high. Thus we assumed to have an interest to the contents of 2,3,4,7,8-PeCDF. In this study, sample size was small (sample number was only 18) and sampling period was limited by 24 h. Therefore, we need more widespread and long-term surveys in order to estimate the human exposure by inhalation.

Air Pollutants↗
PubMedDate not supplied

Coexistence of disseminated superficial porokeratosis in childhood with congenital linear porokeratosis.

Porokeratosis is a genodermatosis characterized by abnormal epidermal keratinization with the histologic finding of cornoid lamella. To date, five clinical variants have been identified. However, the coexistence of these variants in a single patient has been described only rarely. We report a 5-year-old girl with the simultaneous occurrence of porokeratotic lesions in linear and disseminated patterns. Linear lesions were detected at birth and the disseminated lesions developed at the age of 3 years. Histologically the lesions had cornoid lamella, which is typical of this condition.

Child, Preschool↗
PubMedDate not supplied

The effects of a liquid ethanol diet on nutritional status and fluid balance in the rat.

The liquid ethanol diet is a widely used method of ethanol administration. The purpose of this study was to evaluate fluid balance using a multitude of physiological parameters (electrolytes, osmolality, total serum proteins, fluid intake/output and body weight), during and after the introduction of liquid ethanol diet. Animals were randomized into four different dietary protocols (two control and two ethanol groups) and were placed in metabolic cages for 16 days. Serum electrolytes, as well as the above parameters, were measured before, during and 1 week after the introduction of 9% (v/v) ethanol-containing diet (Lieber-DeCarli: LD). After the first night on 9% (v/v) ethanol LD, animals had significantly decreased diet consumption, urine output and body weight. However, a major finding of this study was that, during the habituation phase, the electrolyte values remained within the normal range for rats and, in particular, serum sodium was not altered at any time point measured in this study. Based upon the findings from this study, it is recommended that body weight be carefully monitored as a measure of the animal's equilibration and physiological adaptation during the initiation of a liquid ethanol diet, since neither the serum sodium nor calculated osmolality values were changed. Our results also highlight the need to offer water to animals during the habituation phase of ethanol consumption. This is because ethanol rats that were offered water ad libitum lost less weight than groups that did not receive water ad libitum, despite consuming the same amount of LD diet.

Analysis of Variance↗
PubMedDate not supplied

Comparison of central venous catheterization sites in infants.

This study aimed to compare the rates of success and complications between different sites of central venous catheterization in infants. A total of 272 infants were randomized to four groups: right subclavian group (G-RSCV), right internal jugular group (G-RIJV), left subclavian group (G-LSCV) and left internal jugular vein group (G-LIJV). In 77.2% of the patients, we successfully introduced a catheter at the first attempt. The rate of successful catheter placement was highest in the and LSCV 55.9%). With regard to complications, the rate of arterial puncture, guide wire advancement failure and malpositioning of the catheter were all significantly more frequent during SCV catheterization (SCV versus IJV: 10.1% versus 2.1%, 12.4% versus 0% and 13.4% versus 0.6%, respectively). Our results imply that IJV, especially RIJV, should be the first choice for central venous catheterization in infants.

Catheterization, Central Venous↗