• Korean Journal of Food Science and Technology
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• v.23 no.4
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• pp.459-464
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• 1991

The mackerel meat was packed in square No 3B can, and thermally processed at $121.1^{\circ}C$ to reach Fo values of 5, 10 and 15. On heating at $121.1^{\circ}C$, pH and volatile basic nitrogen content increased markedly, and histamine was detected at concentrations of 3.98 mg/100g in raw meat, 10.45 mg/100g in Fo 5 sample, 7.54 mg/100g in Fo 15 sample, respectively. Total free amino acid content of mackerel meat decreased with increasing Fo values. Little changes were observed in free amino acid composition, but histidine decreased significantly during heat treatment. Degradation of inosine monophosphate was proceeded during preparation and thermal processing of samples, and trimethylamine oxide changed to trimethylamine almost equivalently. In changes of lipid components, peroxide and carbonyl values were increased markedly during heat treatment. When the sample was heated at the Fo values of 5 or higher, content of non-polar lipid(NL) was increased while that of polar lipid(PL) was decreased, and percentages of polyenes such as 22 : 6 decreased with increasing Fo values. The decomposition of polyunsaturated fatty acids in PL were much greater than those in total lipid and NL.

• Journal of radiological science and technology
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• v.36 no.4
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• pp.299-304
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• 2013

Whole body bone scan has been used to confirm bone metastasis and follow-up study with radio isotope. However, if the factors related to $^{99m}Tc$ uptake and waiting time for study are inappropriate, it would be image of low quality. The purpose of present study was to investigate correlation between the evaluation index of renal function and uptake of radiopharmaceuticals. The population for this retrospective study consisted of 387 patients who underwent whole body bone scan between June 2012 and December 2012. As a result of quantitative and qualitative analysis, we were able to confirm that GFR of less than normal range and creatinine levels in blood of more than average are more likely to be under the mean uptake rate. As a result of analysis on the indicator affecting soft-tissue and bone uptake, the correlation of all elements was somewhat low. Also there are no statistically significances due to the other parameters we did not deal with. Therefore, further research on additional factors is needed for exact study and improvement of the image quality.

• Journal of Yeungnam Medical Science
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• v.14 no.2
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• pp.430-442
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• 1997

Due to the lowering of biological functions resulted from old age, the elderly is known to have many different clinical laboratory data compared with the young adults. But, in korea, such study is lacking. This research is to find the differences between the elderly and the young adults, and also to know the sexual differences, by comparing the outcomes of the clinical. laboratory data. Along with that, it is to help clinical usage of the data in the future. The age of the elderly was between 60 and 83(average age 63.8), and that of the young. controls was between 20 and 35. In both sexes, MCV, MCH, ESR, CRP, AST, ALT, ${\gamma}$GTP, ALP, BUN, total cholesterol were significantly higher in the elderly than in the controls. And lymphocyte count(%), total bilirubin, direct bilirubin, total protein, albumin, $T_3$ were significantly lower in the elderly than in the controls(P<0.05). Hemoglobin, Hct, platelet count, $T_4$ were significantly lower only in the male elderly, and eosinophil count(%), creatinine were significantly higher only in the female elderly(P<0.05). HDL cholesterol was significantly higher only in the male elderly(P<0.01). There were no significant difference between two groups regarding WBC count, segment neutrophil count(%), monocyte count(%), TSH. Many clinical laboratory data are different between the elderly and the young adults, and some clinical laboratory data also have sexual differences.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.32 no.3
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• pp.252-255
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• 1999

The quality characteristics of the Korean traditional salt-fermented fish sauces, the traditional anchovy sauce (TAS) and the sandlance sauce(TKS) were evaluated comparing to the commercial anchovy sauce (CAS) and sandlance sauce (CKS). The acidity was higher in TKS than in TAS, whereas the contents of VBN, total-N and amino-N were higher levels in TAS. In color values, L and b values in TAS were generally higher than those in TKS, whereas a and ${\Delta}E$ values were higher in TKS. The contents of total free amino acids in TAS and TKS were $12.40\;g\%$ (w/v) and $9.549 g\%$ (w/v), respectively. The contents or six amino acids, alanine, glutamic acid, leucine, isoleucine, valine and Iysine were higher in TAS, whereas the contents of arginine, glutamic acid, leucine, alanine and valine were higher in TKS. Nucleotides such as IMP and hypoxanthine were principal components in both TAS and TKS. The nitrogen related compounds, TMAO, TMA and total creatinine were determined to be $108.8\;mg\%$ (w/v), $60.5\;mg\%$ (w/v), $62.4\;mg\%$ (w/v) in TAS, and those in TKS were $60.1\;mg\%$ (w/v), $24.1\;mg\%$ (w/v), $67.6\;mg\%$ (w/v), respectively.

• Korean Journal of Environmental Biology
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• v.37 no.2
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• pp.136-143
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• 2019

This study investigates the effect of denitrified biofloc water on changes in the water quality parameters and the physiological characteristics of shrimps. Biofloc rearing water contains a large number of microorganisms and can rapidly stabilize the water quality and energy saving if reusable due to high water temperatures. Rearing water contain floating bacteria with both aerobic and anaerobic bacteria. Therefore, when the carbon source is added in limited air supply, the anaerobic state is activated and the denitrification process is possible. In this study, the denitrification water had the following properties: ammonia (6.9 mg L^-1), nitrite (0.3 mg L^-1), nitrate concentration (9.2 mg L^-1), high pH (8.42) and alkalinity (590 mg L^-1). The experimental group consisted of seawater (SW, control), a mixture of Seawater and denitrified biofloc water (DNW) in the ratio of 3:1, 1:1 and DNW only. All experiments were done in triplicate. As a result, the survival rate never changed even when 100% of the denitrification water was utilized. However, a body fluid analysis showed that creatine and BUN were increased due to index of stress and the tissue damage resulting from the high denitrified water content. Body fluid ions (Na⁺, K⁺, and Cl^-) significantly decreased as the denitrified water content increased. It was recommended that the denitrification water be mixed with a certain ratio (less than 50%) in the future as it may affect the osmotic pressure control in shrimps.

• Journal of Veterinary Clinics
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• v.32 no.1
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• pp.36-40
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• 2015

Equine colic is a major concern in equine industry due to high morbidity and mortality rates. The purpose of this study was to establish mortality rates during medically and surgically treated colic and to identify potential prognostic indicators for mortality of equine colic in Korea. The overall mortality rate was 18/119 (15%). The 93 cases (78%) were treated medically and 26 cases (22%) surgically out of the 119 records reviewed. The mortality rate in small intestinal lesion was 7/9 (78%) and strangulating lesion was 10/11 (91%). The significance between individual factors and prognosis of equine colic was not valid but high frequency rate was found in ${\leq}3$ years age (59%) and male (50%). In dead group showed higher, rectal temperature and heart rate than those of survived group. The mortality rate was significantly high in the pale mucous membrane color and severe pain and decreased intestinal motility. In laboratory factors, dead group showed lower level of platelet than survived group, and had higher values of RBC, hemoglobin, PCV with significance (P < 0.05). Group with increased enzyme activity of CK, LDH, glucose showed poor prognosis.

• Journal of The Korean Society of Clinical Toxicology
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• v.7 no.2
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• pp.156-163
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• 2009

Purpose: Doxylamine succinate (DS) is frequently used to treat insomnia and it may induce rhabdomyolysis in the overdose cases. The purpose of this study is to evaluate the factors that can predict the serum creatine kinase (CK) level normalization time for patients with rhabdomyolysis due to DS ingestion. Methods: This study was conducted on 71 patients who were admitted with rhabdomyolysis after DS ingestion during the period from January 2000 to July 2009. Rhabdomyolysis was defined as a serum CK level over 1,000 U/L. The collected data included the general characteristics, the anticholinergic symptoms, the ingested dose, the peak serum CK level, the time interval (TI) from the event to the peak CK level and the TI from the event to a CK level below 1,000 U/L. We evaluated the correlation between the patients' variables and the TI from the event to the peak CK level time and the time for a CK level below 1,000 U/L. Results: The mean ingested dose per body weight (BW) was $30.86{\pm}18.63\;mg/kg$ and the mean TI from the event to treatment was $4.04{\pm}3.67$ hours. The TI from the event to the peak CK level was longer for the patients with a larger ingestion dose per BW (r=0.587, p<0.05). The CK normalization time was longer for the patients with a larger ingested dose per BW (r=0.446, p<0.05) and a higher peak CK level (r=0.634, p<0.05). Conclusion: The ingested dose per BW was correlated with the TI from the event to the peak CK level, and the ingested dose per BW and the peak CK level have significant correlations with the CK normalization time. These factors may be used to determine the discharge period of patients who had rhabdomyolysis following a OS overdose.

• Journal of dental hygiene science
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• v.15 no.1
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• pp.32-37
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• 2015

The purpose of this study was to quantify urinary and salivary bisphenol-A (BPA) concentrations according to sealant procedure among children. Nine students who had never treated with composite resin or sealant before, were recruited from one elementary school, Daegu, Korea from August 2013 to April 2014. Before sealant procedure, saliva and urine sample were collected. Immediately after sealant procedure saliva sample was collected and 24 hours after the procedure urine sample was collected. Creatinine was measured and adjusted to calculate urinary BPA concentration. Salivary and urinary BPA concentration after sealant procedure were $2.43{\pm}1.54{\mu}g/L$, $4.08{\pm}3.05{\mu}g/g{\cdot}$creatinine respectively, which were relatively higher than those before sealant procedure ($1.41{\pm}1.06{\mu}g/L$, $2.89{\pm}2.91{\mu}g/g{\cdot}$creatinine) but these were not statistically significant. We suggest that more large scale studies considering environmental confounders which have an effect on BPA are needed to establish the relationship between sealant exposure and BPA among children.

• Journal of Veterinary Clinics
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• v.23 no.1
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• pp.61-64
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• 2006

A 4.65 kg 13-month-old male Pekingese dog was referred to veterinary teaching hospital of Konkuk University for evaluation of dysuria. On physical examination, severe distention of urinary bladder was found in abdominal palpation. Urinary catheter could not be guided into urinary bladder. On serum biochemistry, blood urea nitrogen (35.6 mg/dl) and creatinine (1.9 mg/dl) were increased. Obstruction part of proximal membranous urethra was founded on urethrogram. The length (13 mm) of obstruction part was callipered by cystourethrogram and urethrogram on operation. Surgical resection of obstruction part of urethra was performed without pubic osteotomy, and anastomosis was performed with 5-0 polyglycolic acid. Omentum was placed around the urethral anastomosis. On first day after surgery, appetite was good. On day 5, complete blood count and serum biochemistry showed normal range but mild urinary incontinence was showed after removing catheter. On day 7, urinalysis showed normal condition. On day 14, no leakage of surgical site was observed in excretory urogram. On day 21, no more urinary incontinence and good micturition were found. On 1 year later, the patient showed healthy condition without recurrence.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.12
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• pp.395-400
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• 2020

Pigs have been used widely in biomedical research owing to their physiologic and anatomic similarities to humans. Analysis of the hematologic and biochemical values in pigs is an important basis for biomedical research and veterinary clinical diagnosis, but research on transgenic pigs has been sparse. This study was conducted to obtain basic data on transgenic pigs and to describe and compare the reference values for hematologic and biochemical parameters in human tissue plasminogen activator (htPA) transgenic pigs vs normal pigs. Blood samples were obtained from 7 normal LY (Landrace-Yorkshire crossbred) pigs and 8 transgenic pigs and 16 hematologic and 15 serum biochemical parameters were tested. Among the hematologic parameters tested, significant differences were observed in the red blood cells (RBC), mean red blood cell hemoglobin (MCH), and lymphocytes (LYM), between the non-transgenic and transgenic pigs. Among the biochemical parameters tested, the blood urea nitrogen (BUN), total protein (TP), cholesterol (CHOL), alanine aminotransferase (ALT), creatinine (CREA), gamma glutamyl transpeptidase (GGT), globin (GOB), and amylase (AMYL) showed significant differences between the two groups. Thus, the values determined in this study can be used as basic reference values for transgenic pigs and will contribute to their use in biomedical research.