• Title/Summary/Keyword: Histological response

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Effect of Jasinwhalhyul-tang on MRL/MpJ-Ipr/Ipr Mouse Model with Systemic Lupus Erythematosus (자심활혈탕(滋腎活血湯)이 전신성홍반성낭창(全身性紅斑性狼蒼) 동물모델에 미치는 영향(影響))

  • Choi, Hoon-Seob;Cho, Chung-Sik;Kim, Cheol-Jung
    • The Journal of Korean Medicine
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    • v.29 no.1
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    • pp.67-84
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    • 2008
  • Objective : The main purpose of this study was to evaluate the effect of Jasinwhalhyul-tang (Zishenhuoxue-tang, JWT) on MRL/MpJ-Ipr/Ipr mouse model with systemic lupus erythematosus. Methods: The effect of JWT on MRL/MpJ-Ipr/Ipr mice that have autoimmune disease similar to SLE in humans was evaluated after JWT per oral in the present study. Mice were administered with Jasinwhalhyul-tang (Zishenhuoxue-tang, JWT) (80 or 400mg/kg) or distilled water for control group from experimental week 10 for 22 weeks. Results : The amount of erythematosus skin lesion and proteinuria were significantly decreased. The size and weight of cervical lymph nodes and spleen were significantly reduced. The ratio between activated $CD3^+CD69^+$ T-cells and undifferentiated $CD3^+CD4^-CD8^-$ T-cells in lymph nodes, spleen and kidney was effectively reduced. The gene expression of TGF-$\beta$ in spleen and kidney was increased. The amount of anti-dsDNA IgG in blood was decreased. The gene expression of TGF-$\beta$ in normal mouse spleen cells was increased depending on concentration by treatment of with T cell stimulating agent. In the histological examination of skin and kidney, the amount of infiltration of immune cells involved in the inflammatory response was decreased. Conclusions : According to the above results, JWT should be considered as an applicable therapeutic agent to SLE in clinical practice. Further research is required to investigate other efficacies of JWT on SLE.

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Experimental Effects of Sibjeondaebo-tang and Gamy-Sibjeondaebo-tang on Cerebral Hemodynamics in Cerebral Ischemia Rats (십전대보탕(十全大補湯)과 가미십전대보탕(加味十全大補湯)이 뇌허혈 흰쥐의 뇌혈류역학에 미치는 실험적 영향)

  • Lee, Sang Young;Jeong, Hyun Woo
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.27 no.2
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    • pp.173-182
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    • 2013
  • This Study was designed to investigate the effects of Sibjeondaebo-tang (SDT) and Gamy-Sibjeondaebo-tang (GST, Sibjeondaebo-tang adding Cervi Pantotrichum Cornu) on the improvement in regional cerebral blood flow (rCBF) and mean arterial blood pressure (MABP) in normal rats, and in the rats with cerebral ischemia induced by middle cerebral artery occlusion, and further to determine the mechanisms. And, It was to investigate the effects of the SDT and GST with the change of histologic examination through the BDNF in the hippocampus CA1. In changes of cerebral hemodynamics, SDT and GST significantly increased rCBF in a dose-dependent manner but decreased MABP in normal rats. In mechanism of cerebral hemodynamics, Increase of GST-induced rCBF was significantly inhibited by pretreatment with methylene blue (0.01 mg/kg, i.p.), an inhibitor of guanylate cyclase, and Decrease of GST-induced MABP was significantly increased by pretreatment with methylene. These results suggested that the action of GST was mediated by guantlate cyclase pathway. In cerebral ischemics, the rCBF was stably improved by SDT (10 mg/kg, i.p.) significantly and stably increased by GST (10 mg/kg, i.p.) during the period of cerebral reperfusion, which contrast with the findings of rapid and marked increase in Control group. These results suggested that GST had anti-ischemic action in cerebral ischemic state. In histological examination through TTC stain, Sample A group and Sample B group decreased discoloration in the cortical part at $28^{th}$ day after MCAO induction. In immunohistochemistric response of BDNF, Sample A group and Sample B group increased respondent effect at $28^{th}$ day after MCAO induction. These results suggest that GST can Increase rCBF in normal state, as well as improve the stability of rCBF in cerebral ischemic state. Furthermore, methylene blue inhibitor study suggested the mechanism of blood flow enhancement by GST may be mediated by guanylate cyclase pathway.

Experimental Assessment of the Histologic Changes of Collagen Matrix(Terudermis®) in Subcutaneous Implantation: Comparison with Autologous Dermal Graft (콜라젠 기질(Terudermis®)의 피하이식 후 조직학적 변화: 자가 진피 이식과의 비교)

  • Kim, Boo Yeong;Kang, So Ra;Lee, Ji Hyuck;Burm, Jin Sik;Kim, Yang Woo;Lee, Min Jin;Kang, Won Kyung
    • Archives of Plastic Surgery
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    • v.33 no.5
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    • pp.592-600
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    • 2006
  • Purpose: Numerous materials, both autologous and nonautologous, have been used for augmentation of sunken areas, but they have their own limitations. The purpose of this study is to determine the histologic response and volume change of the xenogenic collagen-based scaffold($Terudermis^{(R)}$) to the transfer into a subcutaneous soft tissue location in vivo rabbit model. Methods: Eighteen New Zealand white rabbits were used. Three $1.2{\times}1.2cm$ sized subcutaneous pockets were created on the dorsal surface of each ear. $1{\times}1cm$ sized collagen matrix($Terudermis^{(R)}$) and autologous dermal graft were implanted into each pocket. Full thickness of ear was harvested in 3 days, 1, 2, 4 weeks, 3, 6 months after implantation. Results: Histological analysis of implants demonstrated progressive neovascularization, fibroblast infilteration, neocollagen bundle synthesis and organization, and few foreign body reaction. The thickness of the collagen matrix in 3 days after the operation was 87.69% of the thickness of the collagen matrix in wet state. Then it decreased to 30.17% in 6 months after the operation. The rate of decrease was similar at all points at the same time compared with autologous dermal graft. Conclusion: Our experimental study suggests that $Terudermis^{(R)}$ could be a safe material as an implant for permanent augmentation in subcutaneous tissue. However the choice of graft for augmentation should be remained to the clinical situations.

The preventive effects of hydrolysis compound of cactus opuntia genus, Opuntia ficus-indica var. saboten Makino against bacterial disease on cultured flounder, Paralichthys olivaceus (손바닥선인장 줄기 가수분해 분획물 (MBT-01108)의 넙치 세균성질병 예방효과)

  • Jee, Bo-Young;Lee, Nam-Sil;Kim, Ju-Wan;Park, Mi-Seon;Jeong, Seung-Hee
    • Journal of fish pathology
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    • v.20 no.2
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    • pp.179-187
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    • 2007
  • Hydrolysis compound of cactus of opuntia genus, Opuntia ficus-indica var. saboten Makino, has predominant anti-bacterial, anti-fungal effects. In this study, we wont to know a preventive effects of bacterial disease on cultured flounder using the compound (MBT-01108), and physical and physiological responses of those fishes were examined additionally. The MBT-01108 shown any side effect on physical, hematological and histological conditions of fishes. Immunologically, CL (chemiluminescense) response were appeared at MBT-01108 (0.1%) feeding group for 4 weeks. The results of comparative livability at a experimental infection with E.tarda and S.iniae were 82.5% and 13.5% at 4 weeks MBT (0.1%) feeding group.

Histological Changes of the Acupoint by Acupuncture Stimulation (침자(鍼刺)한 경혈(經穴) 부위(部位)의 조직학적 변화(組織學的 變化))

  • Kim, Jeong-Sang;Park, Min-Hee;Cho, Kwang-Phil;Jung, Hae-Man
    • Applied Microscopy
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    • v.30 no.1
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    • pp.81-87
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    • 2000
  • This study has been carried out to understand histochemical and ultrastructural changes by acupuncture stimulation at the acupoint of the Zusanli (St. 36) in the rat. A lot of mast cells are observed in the peripheral of the hole with a sparrow-pecking and twistin -needle manipulation to the acupoint Zusanli for induction of 'Qi'. These cells contained a lot of granules with varied electron density and exocytosis granules were observed near the mast cell. H-bands of the muscle fiber that situated near the hole were shortened. It is assumed that these muscles are contracted by acupuncture stimulation. These results imply that functional relationship between mast cells in the dermis and Qi-sensation induced by acupuncture plays an important role on the specific receptor response to the mechanical stimulation.

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Changes of Mortality, Oxygen Consumption Rate and Organ Structure in the Oyster Crassostrea gigas Exposed to Lead (납 (Pb) 에 노출된 굴 Crassostrea gigas의 사망률, 산소소비율 및 기관계 구조의 변화)

  • Shin, Yun Kyung;Ju, Sun Mi;Park, Jung Jun;Jin, Young Guk;Lim, Hyun Sig;Lee, Jung Sick
    • The Korean Journal of Malacology
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    • v.32 no.1
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    • pp.9-15
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    • 2016
  • This study was conducted to find out biological response of the oyster Crassostrea gigas exposed to lead (Pb). Experimental period was four weeks. Experimental groups were composed of one control condition and three lead exposure conditions (0.20, 0.40 and 0.80 mg/L). The results of the study confirmed that lead induces reduction of survival rate and oxygen consumption rate and degeneration of organ structure of the bivalve. Oxygen consumption rate was observed exposure groups lower than control decline by 15%-55%. Histological analysis of organ system illustrated expansion of hemolymph sinus, degeneration of epithelial layer and connective tissue layer of the mantle. Also, epithelial degeneration and disappearance of cilia band are recognized in the gill filament and it was observed disruption of epithelial layer and degeneration of basophilic cell and epithelial cell in the digestive tubules.

Lactic Acid Fermentation of Dioscorea batatas and Its Anti-Inflammatory Effects on TNBS-induced Colits Model (TNBS에 의해 유도된 마우스 대장염모델에서 유산균 발효 마의 항염효과)

  • Hyun, Mee-Sun;Hur, Jung-Mu
    • Journal of Applied Biological Chemistry
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    • v.54 no.1
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    • pp.51-55
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    • 2011
  • To develop a health-aid preparation of Dioscorea batatas (DB), lactic acid fermentation was attempted using a mixed starter comprising of Lactobacillus acidophilus, Lactobacillus plantarum, Bifidobacterium longum. The anaerobic fermentation of a 10% DB flour suspension gave a uniform suspension of pH 3.65, containing $8{\times}10^6$ CFU/mL lactic acid bacteria. During the administration of the lactic acid fermented DB (FDB) and DB to trinitrobenzene sulfonic acid (TNBS)-induced colitis mouse model, histological lesions, morphological damage, and myeloperoxidase acitivity were significantly reduced at a dosage of 200 and 400 mg/kg/day. Dose-response (200 and 400 mg/kg/day) studies revealed that FDB pre-treatment of mice significantly ameliorated the appearance of diarrhoea and the disruption of colonic architecture. In FDB-pretreated mice, there was a significant reduction in the degree of both neutrophil infiltration (measured as decrease in myeloperoxidase activity) and weight loss rates. Theses findings suggest that FDB exerts beneficial effects in experimental colitis and may be useful in the treatment of inflammatory bowel disease.

p38 MAPK Participates in Muscle-Specific RING Finger 1-Mediated Atrophy in Cast-Immobilized Rat Gastrocnemius Muscle

  • Kim, Jung-Hwan;Won, Kyung-Jong;Lee, Hwan-Myung;Hwang, Byong-Yong;Bae, Young-Min;Choi, Whan-Soo;Song, Hyuk;Lim, Ki-Won;Lee, Chang-Kwon;Kim, Bo-Kyung
    • The Korean Journal of Physiology and Pharmacology
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    • v.13 no.6
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    • pp.491-496
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    • 2009
  • Skeletal muscle atrophy is a common phenomenon during the prolonged muscle disuse caused by cast immobilization, extended aging states, bed rest, space flight, or other factors. However, the cellular mechanisms of the atrophic process are poorly understood. In this study, we investigated the involvement of mitogen-activated protein kinase (MAPK) in the expression of muscle-specific RING finger 1 (MuRF1) during atrophy of the rat gastrocnemius muscle. Histological analysis revealed that cast immobilization induced the atrophy of the gastrocnemius muscle, with diminution of muscle weight and cross-sectional area after 14 days. Cast immobilization significantly elevated the expression of MuRF1 and the phosphorylation of p38 MAPK. The starvation of L6 rat skeletal myoblasts under serum-free conditions induced the phosphorylation of p38 MAPK and the characteristics typical of cast-immobilized gastrocnemius muscle. The expression of MuRF1 was also elevated in serum-starved L6 myoblasts, but was significantly attenuated by SB203580, an inhibitor of p38 MAPK. Changes in the sizes of L6 myoblasts in response to starvation were also reversed by their transfection with MuRF1 small interfering RNA or treatment with SB203580. From these results, we suggest that the expression of MuRF1 in cast-immobilized atrophy is regulated by p38 MAPK in rat gastrocnemius muscles.

EXPERIMENTAL STUDIES ABOUT HEALING PROCESS OF BLOOD VESSELS FOLLOWING MICROVASCULAR ANNASTOMOSES (미세혈관문합 후 혈관내벽의 치유과정에 관한 실험적 연구)

  • Choi, Sung-Weon;Kim, Sung-Moon
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.16 no.4
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    • pp.397-418
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    • 1994
  • Microvascular surgery has been widely used in the clinical field of replantation and reconstructive surgery. Since the last 20 years, microsurgical techniques and instruments have been rapidly developed and the success rate is remarkably increased. But thrombotic occlusion of vessels remains the major reason for clinical failure. The change of vessel wall is the most important factor in thrombus formation. If we can reduce the traumatic changes in the vessel walls during surgery, the success rate can be markedly increased. For this study, femoral arteries and veins of 36 Sprague-Dawley rats with average weights of 300gm were used. The author observed the histological changes and healing process in the anastomostic site after 1 hour, 24 hours, 1, 2, 3 and 4 weeks under light microscopy and scanning electron microscopy. The results were as follows : 1. The patency rate was 100% in femoral arteries and 85% in femoral vein. 2. At the early stages after microvascular anastomosis, the loss of endothelial cell in the vessel walls was observed in the wide area including anastomotic site. In scanning electron microscopic finding the anastomotic site was covered with much fibrin, many red blood cells and some platelets. 3. At 1st week, new endothelial cells were formed toward anastomotic site and at 3rd week, the anastomotic site was completely covered by new endothelial cells. At 4th week, the complete endothelialization over the threads was observed. 4. The media extended from the anastomotic site toward the end of the specimen. At later stages, the extent of media necrosis was markedly decreased. But the media necrosis of anastomotic site was not regenerated till 4th week. 5. Intimal hyperplasia appeared at 1st week and increased till 4th week. The layer consisted of endothelialization the most luminal layers and smooth muscle in the deeper layers. But in veins, the response was less pronounced than in arteries. 6. Foreign body granuloma remained during 4 weeks and aneurysm was observed at 3rd week in artery. In aneurismal wall, media necrosis, loss of elastic lamina and intimal hyperplasia were seen.

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Lack of Any Role of Systemic Inflammatory Responses in Predicting Muscle Invasion by Bladder Cancer

  • Solakhan, Mehmet;Demirpence, Ozlem;Orhan, Nuri;Yildirim, Omer Aydin;Guzel, Ebru;Yildirim, Mustafa
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.8
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    • pp.3735-3737
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    • 2016
  • Background: The purpose of this study is to evaluate if there is a relation between platelet: lymphocyte ratio (PLR) and neutrophil lymphocyte ratio (NLR) values and tumour histology and spread in bladder cancer cases. Materials and Methods: Bladder cancer patients undergoing TUR-M operation, with histopathologically verified diagnosis, followed-up and treated at the Private Medical Park Gaziantep Hospital between 2010 and 2015, have were included in the study. NLR and PLR values were calculated using complete blood count data obtained at the first presentation. Results: A total of 99 patients were included in the study, 7 (7.1%) women and 92 men (92.9%). When NLR was used as the indicator of systemic inflammatory response (SIR), it was determined that, 52 (52.5%) of the patients were SIR negative and 47 (47.5%) SIR positive. No significant relation could be detected between NLR and tumour grade and muscle invasion (p=0.948, p=0.480). When PLR was used as SIR indicator, it was determined that 71 (71.7%) of the patients were found as negative and 28 (28.3%) as positive. No significant relation could be detected between PLR and tumour grade and muscle invasion (p=0.651, p=0.494). Conclusions: In our study we did not detected a relation between tumour histological behavior and PLR and NLR in bladder cancer. However, NLR and PLR are easily calculated, accessible, inexpensive and simple-to-use laboratory data from whole blood counts.