• Title/Summary/Keyword: Tissue damage

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Comparing the anti-inflammatory effect of nanoencapsulated lycopene and lycopene on RAW 264.7 macrophage cell line (RAW 264.7 대식세포주에서 나노입자화 리코펜의 항염증 증진 효과)

  • Seo, Eun Young;Kim, Myung Hwan;Kim, Woo-Kyoung;Chang, Moon-Jeong
    • Journal of Nutrition and Health
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    • v.48 no.6
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    • pp.459-467
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    • 2015
  • Purpose: We developed a method to load lycopene into maltodextrin and cyclodextrin in an attempt to overcome the poor bioavailability and improve the anti-inflammatory effect of this polyphenol. Methods: Nanosized lycopenes were encapsulated into biodegradable amphiphillic cyclodextrin and maltodextrin molecules prepared using a high pressure homogenizer at 15,000~25,000 psi. Cell damage was induced by lipopolysaccharides (LPS) in a mouse macrophage cell line, RAW 264.7. The cells were subjected to various doses of free lycopene (FL) and nanoencapsulated lycopene (NEL). RT-PCR was used to quantify the tumor necrosis factor (TNF-${\alpha}$), interleukin-$1{\beta}$ (IL-$1{\beta}$), IL-6, inducible nitric oxide synthase (iNOS), and cyclooxigenase-2 (COX-2) mRNA levels, while ELISA was used to determine the protein levels of TNF-${\alpha}$, IL-$1{\beta}$, and IL-6. Results: NEL significantly reduced the mRNA expression of IL-6 and IL-$1{\beta}$ at the highest dose, while not in cells treated with FL. In addition, NEL treatment caused a significant reduction in IL-6 and TNF-${\alpha}$ protein levels, compared to cells treated with a similar dose of FL. In addition, mRNA expression of iNOS and COX-2 enzyme in the activated macrophages was more efficiently suppressed by NEL than by FL. Conclusion: Overall, our results suggest that lycopene is a potential inflammation reducing agent and nanoencapsulation of lycopene can further improve its anti-inflammatory effect during tissue-damaging inflammatory conditions.

The Study on Wound Healing in Rabbit Skins by Low-intensity Laser Irradiation (저강도 레이저 조사에 의한 가토 피부의 상처 치유에 관한 연구)

  • 김식현;전진석
    • Biomedical Science Letters
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    • v.6 no.2
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    • pp.119-129
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    • 2000
  • The skin is an organ that has many important roles, including protection against infection, regulation of temperature and fluid loss, and sensory function. Injury to the skin, wound repair normally involves: (1) balanced activity of inflammation, (2) the re-epithelial phase and (3) the matrix formation of remodeling phase. Thus, skin wound healing is a finely controlled biological process involving a series of complex cellular interactions. Laser therapy is being implemented with increasing frequency in medicine. Low intensity laser is one that is capable of producing an energy density so low that any biologic alterations are the result of direct irradiation effect, not thermal events. This study was designed to evaluate the efficacy of low intensity laser therapy on skin wound healing in rabbits. A total of 10 male rabbits (New Zealand White Rabbit), age 8 weeks were used. Skin wound were surgically created dorso-lateral on the flank of 10 rabbits (2$\times$2 cm/damage areas). The experimental animals were treated with 5Hz (830 nm wave length) low-intensity laser (MILTA-01 Model) daily for 10 min (1.6 J/$cm^2$) for 12 days. Control animals were sham treated with the laser head. Laser irradiation animals showed a complete remodeling of the epithelial layer, a positive repair of connective tissues, and enhanced the wound closure rate over time as compared to the control animals. Especially, laser irradiation groups improved fibroblast activity, cellular content, granulation tissue formation, and collagen deposition which is resulted in improving the tensile strength of the wound. These findings suggest that laser photostimulation could accelerate healing of open wound in rabbits, and may be benefit in the treatment of open wound, including decubitis ulcers.

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Effect of Jaeumganghwa-tang on Production and Secretion of Respiratory Mucus (자음강화탕(滋陰降火湯)이 호흡기 점액의 생성 및 분비에 미치는 영향)

  • Cheon, Jin Hong;Min, Sang Yoen;Kim, Jang Hyun
    • The Journal of Pediatrics of Korean Medicine
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    • v.30 no.2
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    • pp.31-46
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    • 2016
  • Objectives In this study, the effects of Ja-eum-gang-hwa-tang (JGT) on the increase in airway epithelial mucosubstances of rats and ATP- or PMA- or EGF- or TNF-${\alpha}$-induced MUC5AC mucin production and gene expression from human airway epithelial cells were investigated. Materials and Methods Hypersecretion of airway mucus was produced by exposure of $SO_2$ to rats for 3 weeks. The effect of orally-administered JGT for 2 weeks on increased epithelial mucosubstances from tracheal goblet cells of rats was assessed by using histopathological analysis after staining the epithelial tissue with Hematoxylin-eosin and PAS-alcian blue. Possible cytotoxicity of JGT was assessed by investigating the potential damage on kidneys and liver functions by measuring serum GOT/GPT activities and serum BUN concentration of rats and the body weight gain during experiment. Also, the effect of JGT on ATP- or PMA- or EGF- or TNF-${\alpha}$-induced MUC5AC mucin production and gene expression from human airway epithelial cells (NCI-H292) were investigated. Confluent NCI-H292 cells were pretreated for 30 min in the presence of JGT and treated with ATP ($200{\mu}M$) or PMA ($10ng/ml$) or EGF ($25ng/ml$) or TNF-${\alpha}$ (0.2 nM) for 24 hrs to assess the effect of JGT both on ATP- or PMA- or EGF- or TNF-${\alpha}$-induced MUC5AC mucin production by using enzyme-linked immunosorbent assay (ELISA) and on gene expression by the same inducers using reverse transcription-polymerase chain reaction (RT-PCR). Results (1) JGT decreased the amount of intraepithelial mucosubstances of trachea of rats. (2) JGT did not show any renal and hepatic toxicities, and did not affect body weights either. (3) JGT significantly inhibited ATP-, PMA-, EGF-, and TNF-${\alpha}$-induced MUC5AC mucin productions from NCI-H292 cells. (4) JGT inhibited EGF-, and PMA-induced expression levels of MUC5AC gene in NCI-H292 cells. However, ATP- and TNF-${\alpha}$-induced MUC5AC gene expression levels were not affected in NCI-H292 cells. Conclusions The result from the present study suggests that JGT might control the production and gene expression of airway mucin observed in various respiratory diseases which accompanied by mucus hypersecretion. Also, JGT did not show liver toxicity or impact on kidney functions. The effect of JGT should be further studied by using animal experimental models which can show proper pathophysiology of airway diseases.

Biological Activities of Hominis Placenta Herbal Acupuncture prepared by Hydrochloric Acid Hydrolysis (염산 가수분해 추출법으로 조제된 자하거 약침액의 생리활성 효과)

  • Seo, Geun-Young;Lee, Sung-Won;Park, Sung -Joo;Kim, Sung-Chul;Sohn, In-Chul;Hwang, Sung-Yeoun;Ahn, Seong-Hun
    • Journal of Pharmacopuncture
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    • v.13 no.2
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    • pp.5-12
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    • 2010
  • Reactive Oxygen Species(ROS) are continuously produced at a high rate as a by-product of aerobic metabolism. Since tissue damage by free radical increases with age, the reactive oxygen species(ROS) such as hydrogen peroxide($H_2O_2$), nitric oxide(NO). Several lines of evidence provided that ROS appears to cause to develop aging-related various diseases such as cancer, arthritis, cardiovascular disease. In this study, we have conducted to investigate the biological activities of Hominis Placenta Herbal Acupuncture by measuring total polyphenol content, DPPH radical scavenging, ABTS radical scavenging, Superoxide dismutase(SOD)-like activity, Nitrite scavenging ability in vitro. The total polyphenol contents of Hominis Placenta Herbal Acupuncture was $24.6m{\ell}/m{\ell}$. Elctron donation ability on DPPH was 49.4%. The 2,2'-azinobis-3-ehtlbezothiazoline-6-sulfonic acid radical decolorization (ABTS) was 50.01%, similar 10 the DPPH free radical scavenging. The superoxide dismutase (SOD)-like activities of hominis placenta herbal acupuncture was 50.876%. The nitrite scavenging abilities at pH 1.5, pH 3.0, pH 6.0 were 52.8%, 29.4%, 15.4%, respectively; these abilities decreased as pH increased. We conclude that Hominis Placenta Herbal Acupuncture may be useful as potential sources of antioxidant.

Lactobacillus casei Secreting ${\alpha}$-MSH Induces the Therapeutic Effect on DSS-Induced Acute Colitis in Balb/c Mice

  • Yoon, Sun-Woo;Lee, Chul-Ho;Kim, Jeong-Yoon;Kim, Jie-Youn;Sung, Moon-Hee;Poo, Har-Young
    • Journal of Microbiology and Biotechnology
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    • v.18 no.12
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    • pp.1975-1983
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    • 2008
  • The neuropeptide ${\alpha}$-melanocyte-stimulating hormone (${\alpha}$-MSH) has anti-inflammatory property by down regulating the expressions of proinflammatory cytokines. Because ${\alpha}$-MSH elicits the anti-inflammatory effect in various inflammatory disease models, we examined the therapeutic effect of oral administration of recombinant Lactobacillus casei, which secretes ${\alpha}$-MSH (L. casei-${\alpha}$-MSH), on dextran sulfate sodium (DSS)-induced colitis in Balb/c mice. Thus, we constructed the ${\alpha}$-MSH-secreting Lactobacillus casei by the basic plasmid, pLUAT-ss, which was composed of a PldhUTLS promoter and ${\alpha}$-amylase signal sequence from Streptococcus bovis strain. Acute colitis was induced by oral administration of 5% DSS in drinking water for 7 days. To investigate the effect of L. casei-${\alpha}$-MSH on the colitis, L. casei or L. casei-${\alpha}$-MSH was orally administered for 7 days and their effects on body weight, mortality rate, cytokine production, and tissue myeloperoxidase (MPO) activity were observed. Administration of L. casei-${\alpha}$-MSH reduced the symptom of acute colitis as assessed by body weight loss (DSS alone: $14.45{\pm}0.2\;g$; L. casei-${\alpha}$-MSH: $18.2{\pm}0.12\;g$), colitis score (DSS alone: $3.6{\pm}0.4$; L. casei-${\alpha}$-MSH: $1.4{\pm}0.6$), MPO activity (DSS alone: $42.7{\pm}4.5\;U/g$; L. casei-${\alpha}$-MSH: $10.25{\pm}0.5\;U/g$), survival rate, and histological damage compared with the DSS alone mice. L. casei-${\alpha}$-MSH-administered entire colon showed reduced in vitro production of proinflammatory cytokines and $NF-{\kappa}B$ activation. The ${\alpha}$-MSH-secreting recombinant L. casei showed significant anti-inflammatory effects in the murine model of acute colitis and suggests a potential therapeutic role for this agent in clinical inflammatory bowel diseases.

Special quality research about action output waveform change by gap (1.0mm and 1.6mm)difference of skin excessive expense $CO_2$ Laser (피부과용$CO_2$ 레이저의 공극(1.0mm및 1.6mm)차이에 따른 동작출력 파형변화에 관한 특성 연구)

  • Kim, Whi-Young
    • Journal of the Korea Computer Industry Society
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    • v.8 no.2
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    • pp.107-112
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    • 2007
  • Laser wave length can have evaporation effect by absorption because outer skin or tissue of focus is consisted of water almost though absorption of water occurs more than 90% almost in formation thickness of very thin floor. Can operate outer skin, steam by floor and correct incision of formation is available. Suture surgical operation is available to vein or lymph system and surgical operation region can dry and see as eye and radish bleeding surgical operation is available. Specially, stability of tube both end output about pulse by weight very, this research can cause various curative effect because can reduce bulk and control easily current wave style of medical laser using electric power conversion device of high frequency way. If introduce ZVS (Zero Voltage Switching) or ZVZCS (Zero Voltage and Zero Current Switching), is more profitable because can reduce switching damage. Because electric power department of proposed medical laser can do stable soft-switching in wide subordinate extent introducing ZVZCS technique by the first help and control department composes microcontroller, output current waveform user have free form make Result that experiment because design and manufacture, brought result that improve of 20% than existing equipment, and will be bought to get into superior result if supplement as systematic late.

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Effect of D-glucose feeding on mortality induced by sepsis

  • Kim, Sung-Su;Sim, Yun-Beom;Park, Soo-Hyun;Lee, Jae-Ryeong;Sharma, Naveen;Suh, Hong-Won
    • The Korean Journal of Physiology and Pharmacology
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    • v.20 no.1
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    • pp.83-89
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    • 2016
  • Sepsis is the life-threatening response to infection which can lead to tissue damage, organ failure, and death. In the current study, the effect of orally administered D-glucose on the mortality and the blood glucose level induced by D-Galactosamine (GaLN)/lipopolysaccharide (LPS)-induced sepsis was examined in ICR mice. After various amounts of D-glucose (from 1 to 8 g/kg) were orally fed, sepsis was induced by injecting intraperitoneally (i.p.) the mixture of GaLN /LPS. Oral pre-treatment with D-glucose dose-dependently increased the blood glucose level and caused a reduction of sepsis-induced mortality. The oral post-treatment with D-glucose (8 g/kg) up to 3 h caused an elevation of the blood glucose level and protected the mortality observed in sepsis model. However, D-glucose post-treated at 6, 9, or 12 h after sepsis induction did not affect the mortality and the blood glucose level induced by sepsis. Furthermore, the intrathecal (i.t.) pretreatment once with pertussis toxin (PTX; $0.1{\mu}g/5ml$) for 6 days caused a reduction of D-glucose-induced protection of mortality and hyperglycemia. Furthermore, once the hypoglycemic state is continued up to 6 h after sepsis initiated, sepsis-induced mortality could not be reversed by D-glucose fed orally. Based on these findings, it is assumed that the hypoglycemic duration between 3 and 6 h after the sepsis induction may be a critical time of period for the survival. D-glucose-induced protective effect against sepsis-induced mortality appears to be mediated via activating PTX-sensitive G-proteins in the spinal cord. Finally, the production of hyperglycemic state may be critical for the survival against the sepsis-induced mortality.

Enact of Glutathione(GSH/GSSG) Contents of Fermented Ginseng on the ${\gamma}$-irradiated Liver of Mice (감마선을 조사한 생쥐 간에서 발효인삼이 Glutathione 함량에 미치는 영향)

  • Ko, In-Ho
    • The Journal of Korean Society for Radiation Therapy
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    • v.18 no.1
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    • pp.29-34
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    • 2006
  • Purpose: The radioprotective effects of white and fermented ginseng on liver damage induced by $^{60}Co\;{\gamma}$-ray were investigated. Materials and Methods: To one group of ICR male mice were given white(150 mg/kg/day for 7 days, orally) and fermented ginseng(150 mg/kg/day for 7 days, orally) before $^{60}Co\;{\gamma}$-ray irradiation. To another group were irradiated by 5 Gy(1.01 Gy/min) dose of $^{60}Co\;{\gamma}$-ray. Contrast group were given with saline(0.1 mL). The levels of reduced(GSH) and oxidized(GSSG) glutathione in liver tissue were measured. Results: In the fermented(150 mg/kg) and white ginseng(150 mg/kg) groups than irradiation group, the GSH levels were significantly increased, but the GSSG levels were significantly decreased. The ratio of GSSG/total GSH was significantly decreased in the fermented(150 mg/kg) and white ginseng(150 mg/kg) groups than irradiation group. Conclusion: In the fermented(150 mg/kg) groups than white ginseng(150 mg/kg) groups the GSH levels were significantly increased. The radioprotective effects of fermented(150 mg/kg) groups than white ginseng(150 mg/kg) groups were increased.

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Synergistic Effects of 5-Fluorouracil (FU) and Curcumin on Human Cervical Cancer Cells (5-fluorouracil과 curcumin의 복합투여에 의한 자궁암세포의 성장억제와 p53유전자 발현의 상승 효과)

  • Ahn, Seong-Ho;Kim, Dong-Heui;Kang, Jung-Hoon;Lee, Myeong-Seon
    • Applied Microscopy
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    • v.40 no.4
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    • pp.229-235
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    • 2010
  • Cervical cancer is associated with low antioxidant status. It has a high prevalence especially amongst woman in Asia and is a leading cause of cancer death. Cancer chemotherapy in vivo improved in cases with high p53 expression in the tumor tissue. The restoration of p53 levels could be a potential strategy to increase chemoresponsiveness. Under circumstances where damage is extensive, p53 plays a direct role in trigering apoptosis. To investigate the effect of curcumin (CMN) as an antioxidant agent on anticancer agent 5-fluorouracil (5FU) induced apoptosis and p53 expression, HPV-18 positive HeLa cells were treated with noncytotoxic amounts of antioxidant. Curcumin induced apoptosis in cervical cancer cells. Morphological hallmarks of apoptosis such as nuclear fragmentation and internucleosomal fragmentation of DNA were observed. CMN caused upregulation of p53 expression, evident from Western blotting data and also increased the susceptibility/apoptosis induced by 5FU. These results show that increasing drug sensitivity of cervical cancer cells by upregulation of p53 using CMN is novel approach and could have a possible therapeutic potential in cervical cancer.

Treatment of Combat-related Gunshot and Explosive Injuries to the Extremities (전투 상황에서 발생한 사지 총상 및 폭발창의 치료)

  • Lee, Jung Eun;Lee, Young Ho;Baek, Goo Hyun;Lee, Kyung-Hag;Cho, Young Jae;Kim, Yeong Cheol;Suh, Gil Joon
    • Journal of Trauma and Injury
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    • v.26 no.3
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    • pp.111-124
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    • 2013
  • Purpose: We should prepare proper medical service for disaster control as South Korea is not free from terrorism and war, as we experienced through the two naval battles of the Yeonpyeong, one in 1999 and the other in 2002, the sinking of Cheonan in 2010, and the attack against the border island of Yeonpyeong in 2010. Moreover, North Korea's increasingly bellicose rhetoric and mounting military threats against the world demand instant action to address the issue. The aim of this article is to describe our experience with three patients with combat-related gunshot and explosive injuries to their extremities and to establish useful methods for the management of patients with combat-related injuries. Methods: Three personnel who had been injured by gunshot or explosion during either the second naval battle of the Yeonpyeong in 2002 or the attack against the border island of Yeonpyeong in 2010 were included in our retrospective analysis. There were one case of gunshot injury and two cases of explosive injuries to the extremities, and the injured regions were the left hand, the right foot, and the right humerus. In one case, the patient had accompanying abdominal injuries, and his vital signs were unstable. He recovered after early initial management and appropriate emergency surgery. Results: All patients underwent emergent surgical debridement and temporary fixation surgery in the same military hospital immediately after their evacuations from the combat area. After that, continuous administration of antibiotics and wound care were performed, and definite reconstructions were carried out in a delayed manner. In the two cases in which flap operations for soft tissue coverage were required, one operation was performed 5 weeks after the injury, and the other operation was performed 7 weeks after the injury. Definite procedures for osteosynthesis were performed at 3 months in all cases. Complete union and adequate functional recovery were achieved in all cases. Conclusion: The patient should be stabilized and any life-threatening injuries must first be evaluated and treated with damage control surgery. Staged treatment and strict adherence to traditional principles for open fractures are recommended for combat-related gunshot and explosive injuries to the extremities.