• Journal of radiological science and technology
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• v.43 no.1
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• pp.29-34
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• 2020

Mitochondria was observed much around the nuclear membrane of liver tissue where the energy metabolism process is active. Testis tissue had a large number of undifferentiated cells, and cristae in Inner membrane of Mitochondria was not observed clearly. Morphological damage occurred first in Inner membrane rather than the outer membrane. The kidney tissue was clearly observed in the form of cristae. Radiation-induced damage occurred at the edges of both ends, and the membrane was observed bursting with the thickness of the outer membrane. Small intestine cells were observed in many mitochondria in the tissues around the villus, where bowel movements were active. Morphological damage occurred with the outer and inner membranes getting tangled. Mitochondria sensitivity to radiation was sensitized in testis and small intestine tissues, and kidney, ovary and liver tissues were found to be resistant.

• Fisheries and Aquatic Sciences
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• v.6 no.4
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• pp.213-219
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• 2003

Experiments were carried out to investigate the accumulation and elimination changes in the tissue of juvenile rockfish (Sebastes schlegeli) after sub-chronic dietary Cu (0, 50, 125, 250 and 500 mg/kg) exposure for 60 days and depuration for 30 days. The profile of Cu accumulation in the tissue of rockfish was dependent on the exposure periods and Cu concentration. Liver of rockfish is a more important storage tissue than other tissues, and the order of Cu accumulation in tissues was liver > intestine > kidney > gill > muscle. The accumulation factors were increased with the exposure period in gill, intestine, liver, kidney and muscle. An inverse relationship was observed between the accumulation factor and the exposure concentrations in the gill, kidney and muscle. Cu elimination in tissues of rockfish were decreased with periods for the 30 days of depuration except kidney and muscle. The order of Cu elimination in organs during depuration was intestine > liver > gill.

• Korean Journal of Veterinary Research
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• v.56 no.1
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• pp.51-52
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• 2016

Hodgson's bats are critically endangered in South Korea. This study analyzed the concentrations of elements in liver, kidney, and intestine tissues from a Hodgson's bat found dead in the wild. The concentrations of essential elements followed the order Fe > Zn > Cu > Mn > Se in the three tissues. Hg was detected at the highest concentrations among the non-essential elements analyzed in the liver and kidney tissues, while As was the most highly concentrated non-essential element in the intestine. To the best of our knowledge, this is the first study of tissue element concentrations in Hodgson's bats.

• Preventive Nutrition and Food Science
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• v.4 no.3
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• pp.193-196
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• 1999

To investigate the effect of yam on the activity of benzo[a]pyrene hydroxylase(BPH), the key enzyme associated with polycyclic aromatic hydrocarbons(PAHs) metabolism, rats were fed a fiber free diet for 7 days, whereupon they were switched to experimental diets for another 7 days. Diets contained benzo[a] pyrene(BP, 400 mg/kg diet) and 25% or 50% yam powder (freezer dried and hot air dried ). Diets containing pectin and cellulose were compared with diets containing yam. BPH activities were assessed in the liver, lung, kidney, stomach, small intestine and large intestine of rats. BP induced BPH activities in various tissues ; 8 fold in liver, 28 in lung and stomach , and 32 in large intestine. The addition of yam significantly lowered BPH activity in liver, lung and stomach and hot air dried yam was nmor eeffectivie than freeze dried yams. These data suggested that yam containing diet may influence carcinogen metabolism in liver and extrahepatic target tissues by altering activities of BPH and may reduce exposure of these tissues to dietary carcinogens.

• Journal of Preventive Medicine and Public Health
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• v.15 no.1
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• pp.95-110
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• 1982

For the purpose of investigation to identify the quantities of heavy metals contained in the tissues of the Korean people, a series of analyses was conducted with atomic absorption spectrophotometry to measure the amount of lead, cadmium and copper distributed in various tissues, such as brain, liver, kidney, heart, lung, spleen, large intestine, hair, muscle, fat, stomach, costal cartilage, blood and urine, obtained from 30 cadaverous bodies who were believed not exposed to the said heavy metals during their life time either occupationally or therapeutically. 1. Lead content: Inter-individual difference was noted in lead contents in each tissue, vis., the average content of lead in hair was the highest with $14.90{\pm}9.74ppm$. The next was in costal cartilage that contained $5.56{\pm}3.86ppm$. The average contents of lead in liver, kidney and muscle were the lowest in value, showing $1.11{\pm}0.92ppm,\;0.73{\pm}0.48ppm\;and\;0.06{\pm}0.06ppm$, respectively, The lead contents in tissues of children under the age of 10 were significantly lower than those of adults, and the higher values were shown in males than in females in general. The lead contents in most of the tissues such as hair, costal cartilage, kidney, lung, fat, stomach, large intestine, heart, muscle and urine were well correlated with age. 2. Cadmium content: The average content of cadmium in kidney appeared to be the highest of other tissues showing $20.72{\pm}9.82ppm$, and liver came next with the value of $1.17{\pm}0.99ppm$. It was estimated that 83.9% of the total cadmium absorbed into the body was stored in kidney, 4.796 in liver, and the remaining 11.4% was distributed in the rest of the tissues. Cadmium contents in tissues showed difference between both sexes showing higher values in the females than in the males, which was quite contrary to the lead content. Cadmium contents in tissues steadily increased in amount with age, showing a significant correlation with age in all tissues. 3. Copper content: The average content of copper in hair was the highest with $10.36{\pm}2.21ppm$, and liver came next with $6.31{\pm}1.24ppm$. The copper that was absorbed into the body was distributed in each tissue: 29.9% in hair, 18.2% in liver, $5{\sim}11.0%$ in brain, heart and kidney, and $3.0{\sim}3.5%$ in stomach, blood, and lung. The copper contents in tissues of children under the age of 10 showed significantly higher values in liver, kidney, heart and large intestine than those of the adults. The copper contents in brain, costal cartilage and fat were well correlated with age showing the highest correlation coefficient of 0.870 (p<0.01) in brain tissue. There was no difference in copper contents in tissues between both sexes, and the values were, in general, lower than those for Japanese.

• Korean Journal of Veterinary Research
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• v.25 no.1
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• pp.1-5
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• 1985

The morphological development of the small intestinal tissues of the Korean native goat were observed by light microscopy. Samples were taken from a 60-, 90-, 120-day-old fetus, a newborn goat and a 30-day-old goat. The results were summarized as follows; 1. In the small intestine of 60-day-old fetus, the apexes and sides of villi were covered with a simple columnar epithelium, and intervilous areas and mucosal ridges were still covered with stratified epithelium of two to six cell layers. Mesenchymal tissues formed lamina propria, circular muscle layer and serosa. The numbers of villi per cross section of the small intestine (NVPCS) were 10 to 18. 2. In 90-day-old fetus, intervillous areas and mucosal ridges of the organ were covered with simple columnar epithelium. Goblet cells in epithelium and outer longitudinal muscle layer often appeared. NVPCS were 35 to 60 and Brunner's glands were appeared. 3. In 120-day-old fetus, Brunner's glands of the duodenum and circular connection of outer longitudinal muscle layer were formed, NVPCS were 50 to 87. 4. In newborn goat, Peyer's patches were fully formed and NVPCS were 50 to 87. 5. In 30-day goat, the small intestine was fully matured and NVPCS were 81 to 102.

• Korean Journal of Veterinary Research
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• v.33 no.4
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• pp.591-596
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• 1993

The smear preparations of the semen from Korean native bull and the tissue preparations of the organs from male and female mice were performed by fluorescent staining method. More than 600 spermatozoa per straw from two semen straw groups and more than 300 cells per mouse organ from two mice per sex were observed and then the ratio of spermatozoa bearing B-body and the cells bearing F-body were assessed, respectively. 1. The ratios of spermatozoa bearing B-body in semen of Korean native bull were $37.3{\pm}3.1%$. 2. The ratios of cells bearing F-body in the organs of mice were $63.5{\pm}4.5%$ in male tissues and $7.5{\pm}3.2%$ in female tissues. 3. The organs with higher appearance frequency of F-body were ordered as brain, kidney, stomach, lung, testis, liver, small intestine, spleen and pancreas in male mice and pancreas, small intestine, liver, brain, kidney, lung, spleen and stomach in female mice.

• The Journal of the Korea Contents Association
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• v.10 no.7
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• pp.297-304
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• 2010

As Small Intestine Absorptive Epithelium Cells are surrounded by mucus polysaccharide and lymphocytes and mitochondria, they are sensitive to radiation energy. Damaged cells lead to a deficiency of nutrients and the imbalance of electrolyte metabolism, which in turn can becomes a major cause of an intestine tract death. This research observed ultra structures after injecting propolis into the abdominal cavity in order to reveal the radiation damage mechanism and radioprotection effect of intestine absorptive epithelium cells. The result of this research's observation found that stenosis occurred in the small intestine in some tissues 20 days after 5Gy irradiation, their surface turned black, and their elasticity dropped. Through observation with an optical microscope, it was found that the size of the goblet cells decreased, while the paneth granulate cells atrophied and were vacuolated. Observation with an transmission electron microscope(TEM) revealed that while microvill and lysosome were normally observed in jejunum tissues, mitochondria membrane was damaged and uneven surfaces were formed on lymphocytes. The membrane of absorptive epithelium cells hypertrophied in tissues of the ileum, and vacuole was observed. However, the observation after injecting propolis into the abdominal cavity found that mitochondria damage dropped dramatically, and radioprotection effects were to some extent confirmed, considering that glycocalyx of villi was clear, and M cells could be observed.

• Journal of fish pathology
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• v.15 no.2
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• pp.83-92
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• 2002

EST analysis was performed to identify stress-responsive and immune-related genes from mud loach (Misgurnus mizolepis), cDNA libraries were constructed with liver, intestine and kidney tissues and randomly chosen clones (216 for liver, 198 for intestine and 224 for kidney) were subjected to automated sequence analysis. Of 638 clones sequenced in totlal, approximalely 25% of ESTs was novel sequences (no match to GenBank) or sequences with high homology to hypothrtical/unknown genes. Several potential stress-responsive biomarker and/or immure-related genes were identified in all the tissues examined. It included lectin, MHC class I/II proteins, proteinase inhibitors, superoxide dismulase, catalase, glutathionc-S. transferase, heat-shock protein, warm temperature acclimation protein, complements, methylrransferasc, zinc finger proteins, macrophage maturation associated protein, and others. This information will offer new possibilities as fundamental baseline data for the molecular genetics and breeding of this species with an emphasis on the development of stress. (and disease)-resistsnt fish.

• Korean Journal of Veterinary Service
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• v.24 no.1
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• pp.95-99
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• 2001

In order to clarify the cadmium(Cd) contents of normal deer, tissue samples including kidney, liver, muscle, spleen, heart, lung, rumen, abomasum, intestine, skin and bone were collected from 18 deer which were slaughtered in Korea. All samples were burned to ashes and analyzed for Cd contents by atomic absorption spectrophotometric method. The mean Cd contents in \mu\textrm{g}$/g wet matter for 18 deer were liver 0.013, kidney 0.286, muscle 0.010, spleen 0.001, heart 0.007, lung 0.005, men 0.019, abomasum 0.016, intestine 0.018, skin 0.016 and bone 0.312, respectively. Two samples in kidney, one sample in muscle out of 18 deer showed higher Cd contents than normal limit value of 0.50\mu\textrm{g}$/g for liver and kidney, 0.10\mu\textrm{g}$/g for muscle. In addition, three deer also showed higher Cd contents in one body tissue than normal limit value which reported foreign countries.