Sim, Boo Yong;Bak, Ji Won;Lee, Hae Jin;Jun, Ji Ae;Choi, Hak Joo;Kwon, Chang Ju;Kim, Hwa Young;Ruff, Kevin J.;Brandt, Karsten;Kim, Dong Hee
Journal of Nutrition and Health
/
v.48
no.4
/
pp.310-318
/
2015
Purpose: The aim of this study is to investigate anti-arthritis activity using natural eggshell membrane (NEM). Methods: NEM was administered at 52 mg/kg, 200 mg/kg, and 400 mg/kg to SD-Rat, where arthritis was induced by monosodium iodoacetate (MIA) at 3 mg. NO production in serum was measured using Griess reagent. Cytokines including IL-$1{\beta}$, and IL-6 were measured by Luminex and $PGE_2$, MMP-2, MMP-9, TIMP-1, $LTB_4$, and hs-CRP were measured by ELISA. The cartilage of patella volume was examined and 3-D high-resolution reconstructions of the cartilage of patella were obtained using a Micro-CT system. Results: Production of NO, IL-$1{\beta}$, IL-6, $PGE_2$, MMP-2, MMP-9, TIMP-1, $LTB_4$, and hs-CRP in serum was decreased, respectively, in comparison with control. The cartilage of patella volume increased significantly. In addition, the NEM group showed a decrease in the cartilage of patella, synovial membrane, and transformation of fibrous tissue. Conclusion: The results for NEM showed significant anti-arthritis activity. These results may be developed as a raw material for new health food to ease the symptoms mentioned above.
This study was carried out to investigate the effect of memory impairment in rats fed alcohol liquid diets. The rats were randomly divided into 4 groups. While the control(C) group received a diet containing 12% of the daily calories with isocarbohydrate, the other groups received a diet containing 12% of the daily total calories with 36% Soju (A), 25% Cynanchi wilfordii radix liquors (WA), and 25% Polygoni multiflori radix liquors (RA) for 6 weeks. After 6 weeks, ADH activity in the brain tissue of the Group A was found to be significantly lower than Group C but significantly higher than both Groups WA and RA(p<0.05). ADLH activity was revealed to be the highest in the Group WA (p<0.05). The concentration of acetaldehyde, a highly toxic metabolite, was the highest in the Group A, but its concentration decreased significantly if fed a liquid diet containing WA. The concentration of acetylcholine, which has a high correlation with memory impairment, was significantly lower in Group A, although Group RA group was the highest compared to the other groups (p<0.05). AChE activity of the Group A was higher than Group C but lower in Groups WA and RA (p<0.05).
Journal of the Korea Academia-Industrial cooperation Society
/
v.17
no.6
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pp.347-359
/
2016
People are destined to live according to the time and fate after they are born. Man is connected with the idea that is called the Chinese zodiac sign related to one out of 12 animals, regardless of one's thought. This paper was written with the expectation that it will be a new turning point understanding the mutual influence and its changing process by catching the ethnic belief and emotion as well as its cultural background in the Asian Zone by investigating the meaning of the 12 Chinese zodiac shown in the folk painting from the viewpoint of folk lore including "Chinese zodiac sign" culture rooted in our daily lives. The animal 'Rat' has been lived well human beings accompanied by the fable or the nature, while the animal 'Ox' has been living together with human history. The 'Tiger' has been considered the 'Power retreating disease or a devil' to humans, which is the most frightening but near at hand. The 'Rabbit' in the fable is inculcating hope and ideals to humans. The imaginary 'Dragon' is rooted in the deep national belief, which is seated as 'Guardian god' of farming culture and mankind, while the 'Snake' is playing a role in protecting humans as the 'Sea God' in Tsushima and Jeju Island, and has been believed and followed in the deep mind of humans. The 'Horse' in the nomad culture has been adorned as the basic creature of nomadic society in the character of a psychic medium between the human and god or their 'Guardian god'. The ancient Japanese regarded 'Monkey' as holy, being connected with treasure. It infers a human's desire to borrow wisdom from 'Monkey'. 'Chicken' includes the meaning of a lucky sign connecting the sky and the human world by arranging together with humans. The 'Dog' is believed and followed as performing the function of a messenger connecting this world with the afterlife in the next world tale of shamanism. The 'Pig' also lives well with humans, being interpreted as fecundity. Although the meaning of the 12 Chinese Zodiac animals has ethnic differences, all of them have been shared with humans, rooted in the human mind, being believed, and followed in human lives.
Seo, Ki Hyun;Choi, Jae Sung;Na, Joo Ok;Uh, Soo Taek;Kim, Yong Hoon;Park, Choon Sik
Tuberculosis and Respiratory Diseases
/
v.61
no.3
/
pp.256-264
/
2006
Background: An acute lung injury(ALI) is characterized by the recruitment, activation, and apoptosis of inflammatory cells, numerous products released by inflammatory cells such as reactive oxygen species, inflammatory mediators, and a variety of proteolytic enzymes. It was reported that bacterial infections in diabetics showed impaired PMN functions such as reduced PMN respiratory burst and decreased microbicidal activity in inflamed tissue. However, the effect of the proteinase - inhibitor (MMP-9 vs TIMP-1) in ALI in diabetics is unclear. This study evaluated the differences in the expression of MMP-9 and TIMP-1 after the stimulation of endotoxin in a rat model. Methods: Six-week-old male Sprague-Dawley rats were classified into normal, DM, LPS and DM+LPS groups. The peripheral blood, BAL fluids, and lung tissues were obtained from individual rats. The MMP-9 activity was measured by gelatin zymography and the TIMP-1 level was measured by Western blotting. Results: The total BAL cells of the DM-LPS groups were significantly lower than the LPS groups (p < 0.01). The MMP-9 activities in the serum were higher in the DM+LPS groups than in the other groups. The MMP-9 activities in the BAL fluids were significantly higher in the DM+LPS group than in the normal and diabetic rats (p < 0.05). TIMP-1 expressions in the BAL fluids were significantly lower in the DM+LPS group than other groups (p < 0.05). The ratio between MMP-9 and TIMP-1 in the BAL fluids was significantly higher in the DM+LPS groups (p < 0.05). Conclusion: In ALI in diabetics the higher MMP-9 activity and lower TIMP-1 level are believed to prolonged and intensify the course of inflammation.
This study was undertaken to investigate the relation between orthodontic force magnitude and the amount of tooth movement. And more light force application for reducing root resorption Twenty-four rats were divided into three experimental groups(A, B, C) based on force magnitude and application method. Springs of 50g force were applied to A group, springs of 100g force were applied to B group and springs of 25g force were applied to C group initially, and after 4 days springs of C group were changed to springs of 50g force. Two kinds of $sentally^{(R)}$(GAC U.S.A.) closed coil spring, 50g and 100g, were used. And we made 25g springs by heat treatment process of 50g springs. Each spring was inserted between the maxillary central incisor and the maxillary left first molar. Amounts of tooth movement were measured everyday by digital caliper($Digimatic^{(R)}$, Mitutoyo, Japan) under inhalation anesthesia for 15 days. After 15 days, all rats were sacrificed and histological samples were obtained with Hematoxyline-Eosin stain and Masson's trichrome stain. Following conclusion were made; 1. Group B showed the mean cumulative tooth movement of $2.19{\pm}0.41mm$ at 15th day, which was greatest among three groups, followed by group C($2.06{\pm}0.10mm$), group A($1.90{\pm}0.49mm$) respectively. however, there was no statistically difference among three groups. 2. All groups showed general tooth movement pattern and A, B, C group finished lag phase at 9th, 8th, 7th day, but there was no statistical significance. 3. Group A,B,C showed root resorption and especially group B showed the most severe root resorption and group C showed milder root resorption than other groups. According to the above results, large initial force with the development of a flirty widespread hyalinized zone may cause severe root resorption, so initial force should be applied lightly to reduce hyalinized area and eventually root resorption and then increased force will induce efficient tooth movement.
One fifth dilution of formocresol is usually used for pulpotomy of the primary teeth and emergency pulpotomy of the permanent teeth. However the use of formaldehyde has been subjected to criticism because it may be absorbed into the blood stream and become distributed systemically, it nay also alter the pulp tissue rendering it immunologically active, and have carcinogenic potential. Recently Depulpin$^{\circledR}$(VoCo., Germany) gains popularity as a devitalizing agent during root canal therapy in spite of high concentration of 49 % paraformaldehyde because it facilitate devitalization of pulp and make root canal therapy easier But there have been not enough publications about the reaction of pulp and periapical tissue caused by Depulpin. This study was performed to evaluate the histological changes in pulp and periapical tissue of rats after pulpotomy using formocresol and Depulpin and to elucidate the toxic effects of these agents. Thirty six Sprague-Dawley rats were anesthetized by intraperitoneal injection of ketamine Maxillary first molar teeth were used for pulpotomy with formocresol and Depulpin. Rats were sacrificed after 2 days, 4 days, 1 week, 2 weeks, 3 weeks and 4 weeks respectively. Specimens were histologically observed by light microscope changes in pulp and periapical tissue. The obtained results were as follows. 1. Formocresol group A zone of fixed tissue. in which odontoblasts could clearly be defined, was present directly underneath the pulpotomy dressing in almost all teeth of this group. This was followed by an area of necrotic tissue which resembled dried out fibrous tissue with no cellular detail except some pyknotic nuclei. In the specimens of after 2 days, 4 days, 1 week, 2 weeks in which vital tissue was present, it was separated from the fibrous area by a zone of inflammation. In the specimens of after 3 weeks and after 4 weeks, inflammatory infiltrate was in the periodontal ligament adjacent to the apical foramina of the teeth. 2. Depulpin$^{\circledR}$ group The area of necrotic tissue which had no cells and fibers, was present adjacent to the dressing. This was followed by dried out fibrous tissue with no cellular details except some pyknotic nuclei, A short stump of vital pulp with odontoblasts was present at the end of the canal after 2 days. Inflammatory infiltrate was in the periodontal ligament after 4 days and after 1week. Severe root resolution and necrosis of periapical tissue opposite the root resorption site were defined after 2 weeks and after 3 weeks. Periapical lesion which consist of necrotic tissue surrounded by a fibrous connective wall, was found after 4 weeks. The results indicated that Depulpin can cause more adverse reaction to the dental pulp and periapical tissue than formocresol, and further studies are needed for its clinical use with safety.
The study was carried out to investigate the effects of chitosan-adding (0.5-1.5%) on nitrite-reduced (30 ppm) and sodium lactate-reduced (0-2%) sausages to avoid using excessively sodium lacte, which is substituted for sodium nitrite, The number of 24 rats for blood properties were used in this experiment and raised for 1-4 weeks. The color of sausages showed significant differences each treatment (p<0.05) and $a^*$ (redness) had the highest value in control (nitrite 100 ppm) and $b^*$ (yellowness) had the lowest value in T3 (nitrite 30 ppm + sodium lactate 0% + chitosan 1.5%). There were not significant differences in pH (5.53-5.66) and water holding capacity (66.06-69.75%) between control and two treatments (T1, nitrite 30 ppm + sodium lactate 2% + chitosan 0.5%; T2, nitrite 30 ppm +sodium lactate 1% + chitosan 1%), but T3 had significant differences in pH (5.06) and water holding capacity (62.44%), respectively. Springiness, cohesiveness, chewness and adhesiveness in texture analysis had not significant differences between control and three treatments, but hardness and gumminess had lower values in control than in three treatments. Appearance and color in sensory evaluation had higher values in control than in T1, but texture and flavor had lower values than in three treatments. Microbial counts had not significant differences in control, T2 and T3 for 1 week, for 3 weeks, it showed the lowest value in control than in three treatments. Anti-oxidant activity (TBARS) in sausages were more effective in control (p<0.05). The body weigh gain of rat were significantly increased in three treatments and also neutral fat, total cholesterol, LDL-cholesterol were significantly decreased in three treatments. However, T1 treatment had higher blood glucose content and significantly decreased in HDL-cholesterol, compared with control, but T2 and T3 treatments showed similar results in body weight gain and blood properties. So, through the addition of chitosan, it's possible to manufacture nitrite-reduced and sodium lactate-reduced sausage which is supplemented its function.
Tributyltin (TBT) used world-wide in antifouling paints for ships is a widespread environmental pollutant and cause reproductive organs atrophy in rodents. At low doses, antiproliferative modes of action have been shown to be involved, whereas at higher doses apoptosis seems to be the mechanism of toxicity in reproductive organs by TBT. In this study, we investigated that the mechanisms underlying DNA fragmentation induced by TBT in the rat leyding cell line, R2C. Effects of TBT on intracellular Ca$\^$2+/ level and reactive oxygen species (ROS) were investigated in R2C cells by fluorescence detector. TBT significantly induced intracellular Ca$\^$2+/ level in a time-dependent manner. The rise in intracellular Ca$\^$2+/ level was followed by a time-dependent generation of reactive oxygen species (ROS) at the cytosol level. Simultaneously, TBT induced the release of cytochrome c from the mitochondrial membrane into the cytosol. Furthermore, ROS production and the release of cytochrome c were reduced by BAPTA, an intracellular Ca$\^$2+/ chelator, indicating the important role of Ca$\^$2+/ in R2C during these early intracellular events. In addition, Z-DEVD FMK, a caspase-3 inhibitor, decreased apoptosis by TBT. Taken together, the present results indicated that the apoptotic pathway by TBT might start with an increase in intracellular Ca$\^$2+/ level, continues with release of ROS and cytochrome c from mitochondria, activation of caspases,and finally results in DNA fragmentation.
Jo, Seung-Mook;Kim, Sung-Jun;Park, Seung-Kook;Kang, Tae-Cheon;Won, Moo-Ho
Applied Microscopy
/
v.30
no.4
/
pp.357-365
/
2000
Paneth cells have been suggested to contribute to the elimination of excess metals into the intestinal lumen. The purpose of this study wat to investigate the changes of the zinc pools in rats subjected to functional loading with zinc salt by mean of both light and electron microscopical autometallography (AMG). Wistar rats 4 were administrated with zinc chloride (20 mg/kg body weight) intraperitoneally dissolved in 1 ml distilled water. The control group received 1 ml saline IP. After further one hour the animals were transcardially perfused with 0.4% sodium sulphide dissolved in 0.1 M PB fellowed by 3% glutaraldehyde solution for 10 minutes. Pieces of ileum were frozen with solid $CO_2$ and sectioned on a cryostat. The sections $(20{\mu}m)$ were autometallographically developed. Sections selected for EM were reembedded on top of a blank Epon block, from which ultrathin sections (100 nm) were cut. The ultrathin sections were double stained with uranyl acetate (30 min) and lead citrate (5 min), then examined under electron microscope. Studies of comparable sections from control and zinc loaded animals with the AMG selenium method gave quite different results. The control animals demonstrated a weakly positive staining in the cytoplasm of the Paneth cells. In the electron microscope the AMG silver grains were found to be located in the cytoplasm, while the electron dense secretary granules and other cell organelles were void of staining. Few AMG grains were located at the apical surface of the Paneth cells. In sections from zinc loaded rats, the AMG grains were seen in abundance in the lumen of the Lieberkuhn crypts at light microscopic levels. At EM levels the zinc revealing silver grains were located in the cytoplasm as in the controls, but much more AMG grains were shifted into the secretary granules. Furthermore, profound AMG grains were found in the lumen of the crypts and surrounding vessels. And a few grains were seen in the endothelium. The AMG technique demonstrated a pattern of AMG grains in the Paneth cells that strongly suggests a transport of zinc ions through these cells.
Jo, Seung-Mook;Gorm, Danscher;Kim, Sung-Jun;Park, Seung-Kook;Kang, Tae-Cheon;Won, Moo-Ho
Applied Microscopy
/
v.30
no.4
/
pp.347-355
/
2000
Zinc is one of the most abundant oligoelements in the living cell. It appears tightly bound to some metalloproteins and nucleic acids, loosely bound to some metallothioneins or even as free ion. Small amounts of zinc ions (in the nanomolar range) regulate a plentitude of enzymatic proteins, receptors and transcription factors, thus rolls need accurate homeostasis of zinc ions. Zinc is an essential catalytic or structural element of many proteins, and a signaling messenger that is released by neural activity at many central excitatory synapses. Growing evidences suggest that zinc may also be a key mediator and modulator of the neuronal death associated with transient global ischemia and sustained seizures, as well as perhaps other neurological disease stoles. Some neurons have developed mechanisms to accumulate zinc in specific membrane compartment ('vesicular zinc') which can be evidenced using histochemical techniques. Substances giving a bright colour or emitting fluorescence when in contact with divalent metal ions are currently used to detect them inside cells; their use leads to the so called 'direct' methods. The fixation and precipitation of metal ions as insoluble salt precipitates, their maintenance along the histological process and, finally, their demonstration after autometallographic development are essential steps for other methods, the so called 'indirect methods'. This study is a short report on the autometallograhical approaches for zinc detection in the central nervous system (CNS) by means of a modified selenium method.
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