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The activation of α2-adrenergic receptor in the spinal cord lowers sepsis-induced mortality

  • Kim, Sung-Su;Park, Soo-Hyun;Lee, Jae-Ryung;Jung, Jun-Sub;Suh, Hong-Won
    • The Korean Journal of Physiology and Pharmacology
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    • v.21 no.5
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    • pp.495-507
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    • 2017
  • The effect of clonidine administered intrathecally (i.t.) on the mortality and the blood glucose level induced by sepsis was examined in mice. To produce sepsis, the mixture of D-galactosamine (GaLN; 0.6 g/10 ml)/lipopolysaccharide (LPS; $27{\mu}g/27{\mu}l$) was treated intraperitoneally (i.p.). The i.t. pretreatment with clonidine ($5{\mu}g/5{\mu}l$) increased the blood glucose level and attenuated mortality induced by sepsis in a dose-dependent manner. The i.t. post-treatment with clonidine up to 3 h caused an elevation of the blood glucose level and protected sepsis-induced mortality, whereas clonidine post-treated at 6, 9, or 12 h did not affect. The pre-treatment with oral D-glucose for 30 min prior to i.t. post-treatment (6 h) with clonidine did not rescue sepsis-induced mortality. In addition, i.t. pretreatment with pertussis toxin (PTX) reduced clonidine-induced protection against mortality and clonidine-induced hyperglycemia, suggesting that protective effect against sepsis-induced mortality seems to be mediated via activating PTX-sensitive G-proteins in the spinal cord. Moreover, pretreatment with clonidine attenuated the plasma tumor necrosis factor ${\alpha}$ ($TNF-{\alpha}$) induced by sepsis. Clonidine administered i.t. or i.p. increased $p-AMPK{\alpha}1$ and $p-AMPK{\alpha}2$, but decreased p-Tyk2 and p-mTOR levels in both control and sepsis groups, suggesting that the up-regulations of $p-AMPK{\alpha}1$ and $p-AMPK{\alpha}2$, or down-regulations of p-mTOR and p-Tyk2 may play critical roles for the protective effect of clonidine against sepsis-induced mortality.

Epithelial-Specific SHP1-P2 Methylation - a Novel Universal Tumor Marker for Detection of Colorectal Cancer Lymph Node Metastasis

  • Rattanatanyong, Prakasit;Keelawat, Somboon;Kitkumthorn, Nakarin;Mutirangura, Apiwat
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.8
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    • pp.4117-4123
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    • 2016
  • Background: Methylation of promoter 2 of the SHP1 gene is epithelial cell specific, with reported potential as a lymph node metastatic marker. Objective: To demonstrate SHP1-P2 methylation-specific quantitative PCR effectiveness in detecting colorectal cancer (CRC) DNA in lymph nodes. Materials and Methods: SHP1-P2 methylation levels were measured in lymph nodes of CRC patients and compared with pathological findings and patient prognosis. Results: Lymph nodes of CRC metastatic patients without microscopically detectable cancer cells had higher SHP1-P2 methylation levels than lymph nodes of controls (p<0.001). In addition, a higher SHP1-P2 methylation level was associated with a shorter duration until adverse disease events, metastasis, recurrence and death (r2 = 0.236 and p value = 0.048). Studying two cohorts of 74 CRC patients without microscopic lymph node metastases showed that only the cohort containing samples with high SHP1-P2 methylation levels had a significant hazard ratio of 3.8 (95%CI = 1.02 to 14.2). Conclusions: SHP1-P2 methylation PCR can detect CRC DNA in lymph nodes even if cancer cells are not visible under a microscope, confirming applicability as a potential universal lymph node metastatic marker.

A Case of Tracheal Hemangioma Manifested Massive Hemoptysis (대량객혈을 보인 기관 혈관종 1예)

  • So, Soon-Chan;Kwack, Kyung-Kunn;Park, Hae-Kyu;Kim, Jong-Hyung;Shin, Hyun-Min;Lyu, Doo-Yuel;Lee, Duck-Kee;Shin, Yuoon;Kim, Seok-Eun;Park, Young-Hye;Song, Jeong-Sup;Park, Sung-Hak
    • Tuberculosis and Respiratory Diseases
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    • v.47 no.5
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    • pp.704-708
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    • 1999
  • Hemangioma is benign tumor that represent an fail in development of the vascular system, network or retiform stage. As with hemangioma elsewhere, spontaneous regression may occur. Histologically capillary hemangioma has a diagnostic lobular arrangement of capillaries and almost all of them are located in nasal or oral mucous membranes. But, as we know, there is no report of hemangioma located in the trachea in Korea, so we report a case of tracheal hemangioma which was manifested massive hemoptysis.

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Compound K Rich Fractions Regulate NF-κB-dependent Inflammatory Responses and Protect Mice from Endotoxin-induced Lethal Shock

  • Yang, Chul-Su;Yuk, Jae-Min;Ko, Sung-Ryong;Cho, Byung-Goo;Sohn, Hyun-Joo;Kim, Young-Sook;Wee, Jae-Joon;Do, Jae-Ho;Jo, Eun-Kyeong
    • Journal of Ginseng Research
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    • v.32 no.4
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    • pp.315-323
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    • 2008
  • In the previous studies, we isolated the compound K rich fractions (CKRF) and showed that CKRF inhibited Toll-like receptor (TLR) 4- or TLR9-induced inflammatory signaling. To extend our previous studies,1) we investigated the molecular mechanisms of CKRF in the TLR4-associated signaling via nuclear factor (NF)-${\kappa}B$, and in vivo role of CKRF for induction of tolerance in lipopolysaccharide (LPS)-induced septic shock. In murine bone marrow-dervied macrophages, CKRF significantly inhibited the induction of mRNA expression of proinflammatory mediators such as tumor necrosis factor-${\alpha}$, interleukin-6, cyclooxygenase-2, and inducible nitric oxide synthase. In addition, CKRF significantly attenuated the transcriptional activities of TLR4/LPS-induced NF-${\kappa}B$. Nuclear translocation of NF-${\kappa}B$ in response to LPS stimulation was significantly abrogated by pre-treatment with CKRF. Furthermore, CKRF inhibited the recruitment of p65 to the interferon-sensitive response element flanking region in response to LPS. Finally, oral administration of CKRF significantly protected mice from Gram-negative bacterial LPS-induced lethal shock and inhibited systemic inflammatory cytokine levels. Together, these results demonstrate that CKRF modulates the TLR4-dependent NF-${\kappa}B$ activation, and suggest a therapeutic role for Gram-negative septic shock.

Effect of Vigna angularis Ethanol Extract on Papain-induced Arthritis in Mice (팥 에탄올 추출물의 Papain 유도 관절염 마우스에서의 항 골관절염 효과)

  • Jeoung, See Hwa;Kim, Seung Hyung;Kim, Hyun Kyu;Yun, Bo Ra;Lee, Hee Woong;Lim, Ju Hwan;Rho, Mun Chual;Kim, Dong Hee
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.26 no.5
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    • pp.665-671
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    • 2012
  • The purpose of this study is to examine the effect of Vigna angularis ethanol extract (VA-E) on papain induced arthritis in C57BL/10 mice. The C57BL/10 mice were injected with papain and oral administration of Vigna angularis ethanol extract (VA-E) at different doses (100 and 200 mg/kg) once a day for 42 days and compared with untreated mice. Histological examination and the measurement of inflammatory cytokine release were performed. The results showed that comparing with untreated mice, the treatment with Vigna angularis ethanol extract (VA-E) decreased the pathological changes of knee joint tissue. The level of inflammatory cytokine secreted from the tissues, such as IL-$1{\beta}$ (interleukin-$1{\beta}$), IL-6 (interleukin-6), TNF-${\alpha}$ (Tumor Necrosis Factor-${\alpha}$), were decreased. These results were confirmed by the quantification of cartilage volume using micro CT scanning. Consequently, Vigna angularis ethanol extract (VA-E) has a therapeutic potential in inflammatory joint diseases such as osteoarthritis.

Inhibitory Effects of Banhasasim-tang Extracts on Cisplatin-induced Body Weight Decrease in Mouse Model (시스플라틴 유도 체중감소에 대한 반하사심탕 추출물의 방어효과)

  • Kim, Ha Rim;Kim, Mi Seong;Lee, Young Rae;Ryu, Do Gon;Lim, Chan Han;Kim, Byung Sook;Lee, Geum-San;Kwon, Kang Beom
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.31 no.6
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    • pp.362-366
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    • 2017
  • In this study, Banhasasim-tang extracts (BSTE) have an inhibitory effects on cisplatin-induced decrease of body weights in two mouse model. Cisplatin is the most widely used anticancer drug for treatment of various cancer. However, cisplatin treatment to cancer patients leads to many side effects such as nausea, vomiting and body weight decrease. BSTE has been used to decrease digestive disorders in South Korea. We hypothesize that BSTE improve the cisplatin-induced side effects in mouse models. We found that pre- and co-administration of BSTE inhibited decreases of body weights and food intake by cisplatin in mouse models. But BSTE had no synergistic effects for tumor shrinkage by cisplatin in xenograft model. Collectively, our data suggest that BSTE have great potential as a agent for having decrease effects on side effects by cisplatin in cancer patients.

Immuno-Modulatory Effects of Bacteriocin-Producing Pediococcus pentosaceus JWS 939 in Mice

  • Choi, Hyun-Jong;Kim, Ji-Ye;Shin, Myeong-Su;Lee, Sang-Myeong;Lee, Wan-Kyu
    • Food Science of Animal Resources
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    • v.31 no.5
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    • pp.719-726
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    • 2011
  • Pediococcus pentosaceus JWS 939 (JWS 939) is a nonpathogenic bacteriocin-producing probiotic isolated from the duck intestine. This study assessed the immunomodulatory effects of JWS 939 and compared them with those of Lactobacillus rhamnosus GG (LGG), a well-known immune enhancer. The immune-enhancing effects of JWS 939 were measured by measuring the production of nitric oxide (NO) and cytokines in C57BL/6 mouse peritoneal macrophages. In addition, to assess the immune enhancement abilities of JWS 939, in vivo, a Listeria monocytogenes challenge mice model was used. The results showed that heat-killed JWS 939 induced more NO and interleukin (IL)-$1{\beta}$ production in mouse peritoneal macrophages than in LGG, and that oral administration of viable JWS 939 in mice increased more NO, IL-$1{\beta}$, and tumor necrosis factor (TNF)-${\alpha}$ level than in LGG in serum upon L. monocytogenes challenge. In addition, mice fed with JWS 939 had a longer survival time after lethal challenge with L. monocytogenes, and these effects were stronger than those induced by LGG. Collectively, P. pentosaceus JWS 939 is a remarkable strain that, by releasing bacteriocin and enhancing host immune responses, may have potential as a duck feed additive to suppress pathogens.

FIBROMA ON THE PALATE : A CASE REPORT (구개의 섬유종 : 증례보고)

  • Kim, Young-Jae;Jang, Ki-Taeg;Hahn, Se-Hyun;Kim, Chong-Chul;Lee, Sang-Hoon;Kim, Jung-Wook
    • Journal of the korean academy of Pediatric Dentistry
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    • v.30 no.2
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    • pp.286-290
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    • 2003
  • The fibroma is the most common benign soft-tissue tumor found in the oral cavity and most commonly occurrs in sites predisposed to irritation or trauma. Treatment is conservative surgical excision. Seldom does the lesion recur. A 14-year old girl was referred to the Department of Pediatric Dentistry for evaluation and management of a mass on the palate. The patient's parents reported the slow growth of this soft tissue lesion over a 6-month period. A history of trauma or irritable habits was denied. Clinical examination revealed an asymptomatic, soft, pedunculated elevation of mucosa, measuring 3cm in diameter. Excisional biopsy of the lesion supported a diagnosis of fibroma. There have been no signs of recurrence during follow up of 4 years after surgical intervention. The clinical picture, pathology and management of the case are described, and the differential diagnosis and treatment are discussed.

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The Prognostic Significance of Compliance with Postoperative Adjuvant Chemotherapy in Patients with Stage III Gastric Cancer: an Observational Study

  • Jang, Sung Ho;Jung, Young Jae;Kim, Min Gyu;Kwon, Sung Joon
    • Journal of Gastric Cancer
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    • v.18 no.1
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    • pp.48-57
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    • 2018
  • Purpose: Postoperative adjuvant chemotherapy is usually prescribed to improve the survival of patients with advanced gastric cancer who undergo curative surgery. This study was designed to determine the impact that the degree of compliance with chemotherapy has on the prognosis of patients with gastric cancer. Materials and Methods: Among 252 patients with stage III gastric cancer who underwent curative surgery between July 2004 and December 2014, 85 patients were postoperatively treated with S-1, the oral fluoropyrimidine derivative, 23 received no chemotherapy, and 144 received other regimens. Overall survival was compared between the complete compliance group (who received 8 cycles of S-1 chemotherapy, n=44) and the incomplete compliance group (who received less than 8 cycles of S-1 chemotherapy, n=41). Factors that influenced patient compliance with chemotherapy were also analyzed. Results: The overall 5-year survival rate was significantly different between the complete chemotherapy and incomplete chemotherapy groups (80.0% vs. 42.7%, P<0.001). Based on univariate and multivariate survival analyses of patients who received S-1 chemotherapy, the independent prognostic factors were tumor, node, and metastasis (TNM) stage (IIIa vs. IIIb vs. IIIc) and compliance with chemotherapy. TNM stage and age are significant factors that influence compliance with chemotherapy. Conclusions: TNM stage and compliance with chemotherapy are independent prognostic factors in patients with stage III gastric cancer who received postoperative chemotherapy. TNM stage and age are significant factors that influence patient compliance with chemotherapy.

Effect of Polysaccharides from Acanthopanax senticosus on Intestinal Mucosal Barrier of Escherichia coli Lipopolysaccharide Challenged Mice

  • Han, Jie;Xu, Yunhe;Yang, Di;Yu, Ning;Bai, Zishan;Bian, Lianquan
    • Asian-Australasian Journal of Animal Sciences
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    • v.29 no.1
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    • pp.134-141
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    • 2016
  • To investigate the role of polysaccharide from Acanthopanax senticosus (ASPS) in preventing lipopolysaccharide (LPS)-induced intestinal injury, 18 mice (at 5 wk of age) were assigned to three groups with 6 replicates of one mouse each. Mice were administrated by oral gavage with or without ASPS (300 mg/kg body weight) for 14 days and were injected with saline or LPS at 15 days. Intestinal samples were collected at 4 h post-challenge. The results showed that ASPS ameliorated LPS-induced deterioration of digestive ability of LPS-challenged mice, indicated by an increase in intestinal lactase activity (45%, p<0.05), and the intestinal morphology, as proved by improved villus height (20.84%, p<0.05) and villus height:crypt depth ratio (42%, p<0.05), and lower crypt depth in jejunum (15.55%, p<0.05), as well as enhanced intestinal tight junction proteins expression involving occludin-1 (71.43%, p<0.05). ASPS also prevented intestinal inflammation response, supported by decrease in intestinal inflammatory mediators including tumor necrosis factor ${\alpha}$ (22.28%, p<0.05) and heat shock protein (HSP70) (77.42%, p<0.05). In addition, intestinal mucus layers were also improved by ASPS, as indicated by the increase in number of goblet cells (24.89%, p<0.05) and intestinal trefoil peptide (17.75%, p<0.05). Finally, ASPS facilitated mRNA expression of epidermal growth factor (100%, p<0.05) and its receptor (200%, p<0.05) gene. These results indicate that ASPS can prevent intestinal mucosal barrier injury under inflammatory conditions, which may be associated with up-regulating gene mRNA expression of epidermal growth factor and its receptor.