• The Journal of Internal Korean Medicine
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• v.25 no.3
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• pp.497-507
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• 2004

This study was carried out to investigate the effects of Ikwitang extract on indomethacin-induced gastric mucosal lesions in mice. Experimental groups were classified into a non-treated group(NM group), a non-administered group(CON group), the Misoprostol-administered group(MI group) and the Ikwitang-extract-administered group(IW group). This study examined the morphological change, distribution of mast cells, mucous surface cells, acid mucose secreted cells, and apoptic cells, BrdU, COX-1, Hsp70, $NF-{\kappa}B\;p50$, PKC, COX-2 and IL-12B of gastric mucosa. Results : The results of this study were as follows: 1. In the Misoprostol-administered group and the Ikwitang-extract-administered group, the hemorrhagic erosion of gastric mucous and infiltrated mast cells decreased. 2. Mucous surface cells and acid mucose secreted cells abserved in the Misoprostol-administered group and the Ikwitang-extract administered group. 3. The distribution of apoptic cells, Hsp70, $NF-{\kappa}B\;p50$, PKC, COX-2, and IL-12B increased in the Control group, but decreased in the Misoprostol-administered group and Ikwitang-extract-administered group. 4. Cells proliferation of gastric mucosa and the COX-l positive cells decreased in the Control group, but increased in the Misoprostol-administered group and the Ikwitang-extract -administered group. The above results suggest the lkwitang extract had beneficial effects on indomethacin induced gastric mucosal lesions.

• The Journal of Korean Medicine
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• v.25 no.3
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• pp.111-122
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• 2004

Objectives : This study was carried out to investigate the effects of Jaeumgeonbi-tang extract on indomethacin-induced gastric mucosal lesions of mice. Methods : Experimental groups were classified into non-treatment group (CON group), non-administered group (GE group), misoprostol administered group (MA group) and Jaeumgeonbi-tang extract administered group (JG group). This study examined the morphological change, distribution of mast cells, mucous secreted cells and apoptotic cells, BrdU, COX-1, Hsp70, NF-κB p50, PKC, COX-2 and TNF-α of gastric mucosa. Results : 1. The hemorrhagic erosion of gastric mucosa and infiltrated mast cells were reduced in the MA and JG groups. 2. PNA reaction and mucous secreted cells were increased in the MA and JG groups. 3. The distribution of apoptotic cells, Hsp70, NF-κB p50, PKC, COX-2 and TNF-α were increased in the gastro­inflammation elicitated group, but decreased in the MA and JG groups. 4. The MA and JG groups showed increase on COX-1, BrdU. Conclusions : Jaeumgeonbi-tang extract had excellent effects on indomethacin-induced gastric mucosal lesions.

• BMB Reports
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• v.32 no.2
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• pp.112-118
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• 1999

The presence of hypoxic cells in solid tumors has long been considered a problem in cancer treatment such as in radiation therapy or treatment with some anticancer drugs. It has been suggested that hypoxic cells are involved in the development of a more aggressive phenotype and contribute to metastasis. In this study, as an attempt to understand how tumor cells adapt to hypoxic stress, we investigated the regulation of the hypoxia-induced expression of proteins that control essential processes of tumor cell survival and angiogenesis. We first examined whether hypoxia induces stress protein gene expression of murine solid tumor RIF cells. We also examined hypoxia-induced changes in angiogenic gene expression in these cells. Finally, we investigated the association of the elevated levels of stress proteins with the regulation of hypoxia-induced angiogenic gene expression. Results demonstrated that hypoxia induced the expression of the erythropoietin (EPO) gene and at least two major members of stress proteins, heat shock protein 70 (HSP70) and 25 (HSP25) in RIF tumor cells. Evidence that the expression of EPO gene was greatly potentiated in TR cells suggested that the elevated levels of HSPs may play an important role in the regulation of the hypoxia-induced EPO gene expression. One of the RIF variant cell lines, TR, displays elevated levels of HSPs constitutively. Taken together, our results suggest that a hypoxic tumor microenvironment may promote the survival and malignant progression of the tumor cells by temporarily increasing the level of stress proteins and expressing angiogenic genes. We suspect that stress proteins may be associated with the increase of the angiogenic potential of tumor cells under hypoxia.

• Korean Journal of Medicinal Crop Science
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• v.25 no.1
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• pp.45-51
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• 2017

Background: This study was performed to evaluate the protective effect of Saururus chinensis ethanol extract (SCE) against styrene toxicity in mouse spermatocyte cells [GC-2spd (ts) cell line]. Methods and Results: Cytotoxicity in mouse spermatocyte cells was measured using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Generation of reactive oxygen species (ROS) was determined using 2',7'-dichlorodihydrofluorescein diacetate (DCF-DA) assay. Semi-quantitative reverse transcription polymerase chain reaction (RT-PCR) and western blotting were performed to quantify the mRNA and protein expression levels, resepectiviely, of stress or apoptosis-related genes including p21, p53, heat shock protein 70 (Hsp70), heat shock protein 90 (Hsp90), Bax, Bcl-2, and caspase-3. The results of the MTT assay showed that $50 {\mu}g/m{\ell}$ SCE did not affect cell viability. ROS generation in mouse spermatocyte cells increased by treatment with $100{\mu}M$ styrene, and decreased by co-treatment with SCE. SCE repressed the mRNA expression of stress-related genes, which increased by styrene treatment. In addition, SCE inhibited the apoptosis of mouse spermatocyte cells by ameliorating mRNA and protein levels of apoptotic genes that were altered by styrene treatment. Conclusions: These results suggest that SCE may alleviate styrene toxicity in mouse spermatocyte cells by reducing ROS stress and regulating genes related to styrene toxicity.

• Journal of Life Science
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• v.25 no.8
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• pp.942-946
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• 2015

The Korean rhinoceros beetle (Allomyrina dichotoma) is popular as a pet and as a food ingredient, and it is commercially distributed in Korea. It is also traditionally regarded as a medicine for liver-related diseases. Recently, the Oryctes rhinoceros nudivirus was introduced from Southeast Asia. This virus is reported as a disease factor for A. dichotoma in mass-rearing facilities, and economic losses due to this viral infection have been increasing in Korea since the 2010s. In this study, we observed serious structural changes in the fat body and the intestine of virus-infected beetles. We report five genes that are up-regulated by the viral infection in the intestine: BTF3H4-like (transcription factor BTF3 homolog 4-like), SPS-like (serine proteinase stubble-like), COPB1 (coatomer protein complex, subunit beta 1), T-CP (T-complex 1 subunit gamma), and HSP70 HSP70 (heat shock protein 70). The results may provide a clue for the early diagnosis and disease-treatment that occurs in mass-rearing facilities. The improvement of stable productivity will increase the farmers’ income, and quality control of beetle-breeding will help industries to utilize this beetle as a promising food ingredient.

• The Korean Journal of Mycology
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• v.35 no.2
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• pp.68-75
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• 2007

The seventy nine isolates of Botrytis spp. were obtained from leaf blight lesions of lily in Korea, Japan and Netherlands. Morphological and cultural characteristics of them were investigated and molecular characteristics of them were determined using sequence analysis of RNA polymerase II (RPB2) and heat-shock protein 60 (HSP60) gene. A selection of Botrytis isolates were evaluated for their pathogenicity to lily. Based on morphological and cultural characteristics, the Botrytis isolates were divided into two groups, and identified as B. elliptica (n = 54) and B. cinerea (n = 25). Based on analysis of RPB2 and HSP60 sequences, the Botrytis isolates were also divided into two groups and well supported morphological groupings. Spore suspensions of B, elliptica showed significant pathogenicity on lily leaves and flowers, however those of B. cinerea showed pathogenicity only on flowers but not on leaves. The latter showed pathogenicity on lily leaves only when spore suspensions amended with PDB were used as inocula.

• Korean Journal of Poultry Science
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• v.43 no.3
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• pp.177-189
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• 2016

This study was conducted to verify the relationships between the expression values of stress-related markers and their production performances in 25 strains of Korean domestic chicken breeds. For stress response markers, the amount of telomeric DNA; expression levels of heat shock protein (HSP)-70, $HSP-90{\alpha}$, and $HSP-90{\beta}$; and comet scores were analyzed. Production performances were measured by the survival rate, body weights, days at first egg laying, egg weight and hen housed egg production. The results showed that the production traits and values of stress-related markers showed significant differences between strains. In general, the stress response of pure bred chickens with heavy weights was relatively high, while that of hybrid chickens with light weights was relatively low. The correlation coefficients between telomere contents and body weights showed that there were weak negative relationships. However, the correlations of telomere content with the survival rate and egg production were weakly positive after 20 weeks old. The expression levels of HSP genes and DNA damage rate (comet scores) were positively correlated to body weight, but were negatively correlated to the survival rate and egg production. The results implied that increasing body weight was associated with increasing HSPs expression and the DNA damage rate was associated with decreasing telomere content. In addition, increasing HSPs expression and the DNA damage rate decreased the survival rate and egg production, but the relationships with the telomere content was the reverse. Correlations among the stress-related markers showed that there were significant correlation coefficients between all of the marker values. HSPs expression was negatively correlated to the telomere content, while it was positively correlated to the DNA damage rate. There was a highly negative correlation between the telomere content and DNA damage rate. In conclusion, increasing the HSP values and DNA damage rate can promote telomere reduction, which led to a decrease in disease resistance and robustness of the chicken. Thus, increasing the stress response was verified to adversely affect the laying performance and viability of chickens.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.32 no.1
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• pp.19-26
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• 2006

Objective: In order to elucidate the retrogressive degeneration of orofacial cleft, the fissured tissues of prenatal and postnatal cleft lip and palate were examined by histological and immunohistochemical methods. Design: Totally 42 cases of prenatal (n=17) and postnatal (n=25) cleft lip and/or palate were examined in comparison with 10 cases of normal lip and oral mucosa using immunohistochemical stainings of MMP-3, MMP-9, MMP-10, cathepsin G, PCNA, E-cadherin, TGase 2, HSP-70, vWF, and VEGF. Main Outcome Measures: In the fissured tissue the sebaceous glands were strongly positive for PCNA and grew into the underlying fibromuscular tissue (24/42). Some hyperplastic sebaceous glands of prenatal cleft lip produced infundibular follicular cyst (9/17). The skin and mucosal epithelia from the postnatal cleft lip and palate (10/25) showed severe basal hyperplasia (11/25) and melanocyte infiltration (7/25). Results: The immunostaining of MMP-3 and HSP-70 were strongly positive in the hyperplastic sebaceous glands and nearby atrophying muscle bundles of the fissured tissue, while MMP-9, MMP-10, and cathepsin G were almost negative. The immunoreactions of the other antibodies used in this study were similar between in the fissured tissues and in the normal controls. Conclusions: These data suggest that the over-expression of MMP-3 is closely related to the sebaceous gland hyperplasia, epithelial dysplasia, and the muscle degeneration, and that the over-expression of MMP-3 in the fissured tissue may continuously aggravate the cleft condition in the later life.

• Journal of Pharmacopuncture
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• v.3 no.2
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• pp.191-212
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• 2000

Objective: This study was perfomled to examine the therapeutic effect of aqua-acupuncture solution of Hominis Placenta(HP) on kidney and liver intoxicated by $HgCI_2$ in rats. Methods: $10\%$ and $25\%$ HP aqua-acupuncture were carried out everyday for 8 days on corresponding bilateral loci of Shinsu(BL23) and Kansu(BL18), respectively, after mercuric chloride intoxication in rats. Thereafter BUN, creatinine, GOT, GPT, ALP, ${\gamma}$-GT, albumin and total bilirubin were measured before intoxication, and at the 4th and the 8th experimental day. Histopathological and immunochemical observation were also carried out. Results: 1. It showed significant decreases of BUN in the group of $10\%$ HP aqua-acupuncture into Shinsu on the 4th experimental day as compared with the control group. 2. It showed significant decreases of creatinine in the group of $10\%$ HP aqua-acupuncture into Shinsu on the 4th and the 8th experimental days as compared with the control group. 3. There were not any significant changes of GOT, GPT, ALP,${\gamma}$-GT, albumin and total bilirubin in the HP aqua-acupuncture groups compared with the control group. 4. By the histopathological observations on kidney under a light microscope, alt the $10\%$ and $25\%$ HP aqua-acupuncture into Shinsu showed the preventive effect on tubulo-interstitial necrosis and muItifocal calcification in tubular lumen respectively compared with the control group. 5. By the histopathological observations on liver under a light mIcroscope, the groups $10\%$ and $25\%$ HP aqua--acupuncture into Kansu did not show any significant changes in the liver compared with the control group. 6. By the immunochemical analysis of heat shock protein(hsp) and glucose-regulated protein(grp) in rat renal cortex, the expressions of hsp70 and grp78 were decreased in the $10\%$ and $25\%$ HP aqua-acupuncture into Shinsu respectively compared with the control group. Conclusion: These results suggest that Hominis Placenta aqua-acupuncture have an effect on prevention and protection of renal intoxication by $HgCI_2$ in rats.

• Korean Journal of Food Science and Technology
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• v.25 no.6
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• pp.596-601
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• 1993

Changes of textural properties of garlic pickle was studied during aging at room temperature with or without skin or addition of $CaCl_{2}$. The alcohol insoluble solids(AIS) was gradually decreased by aging. The decreasing rate of AIS was less for those of unpeeled and $CaCl_{2}-added$ pickles. In pectic substances, HSP was a little decreased and HXSP was significantly increased and HWSP and total pectin was changed little. The $CaCl_{2}-added$ pickles showed higher HSP and lower HXSP than those of $CaCl_{2}-not$ added pickles. The hardness of unpeeled pickles was slightly higher than peeled pickles and of $CaCl_{2}-added$ pickles was higher than $CaCl_{2}-not$ added pickles and decreased generally during aging for all samples.