• 제목/요약/키워드: gastrointestinal study

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가려움증의 기전에 대한 최신 논의 고찰 - 최근의 연구 동향과 위장관계와의 연관성 (A Review of the Latest Discussions on the Mechanism of Itching - A Study on Recent Research Trend and the Relationship between Gastrointestinal Tract and Itching)

  • 김준동;한창이;서광일;김규석;김윤범
    • 한방안이비인후피부과학회지
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    • 제34권3호
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    • pp.55-69
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    • 2021
  • Objectives : The purpose of this study is to review the latest discussions on the mechanism of Itching. Methods : Articles that reviewed the mechanism of itching were searched from Pubmed (January 2016 to June 2021). In addition, review articles discussing the gastrointestinal tract and the mechanisms of pruritus were searched seperately. Results : The articles are classified into three categories. These categories are the classification according to the passage of time (acute, chronic), the immune factors involved (inflammatory, non-inflammatory), and the neurophysiological mechanism (pruritoceptive itching, neuropathic itching, neurogenic itching, psychogenic itching). In each category, the articles over the past five years are summarized and reviewed. Also, how the status of the gastrointestinal tract is reflected in itching was discussed in terms of leaky gut syndrome, neuro/gastrointestinal peptides, and gut microbiota. Conclusions : This review introduces the recently discussed mechanism of itching, and in particular, examines how the gastrointestinal tract is related to skin itching. Based on these considerations, it is expected that more diverse therapeutic approaches can be explored in the future.

중완(中脘) 자침(刺鍼)이 indomethacin 유발 소화기 질환 SD-rat 뇌(腦)의 NADPH-diaphorase 신경세포에 미치는 영향 (The Effect of Joongwan(中脘;CV12) Acupuncture on NADPH-diaphorase in the SD-rats Brain with Indomethacin-Induced Gastrointestinal Diease)

  • 박희수
    • 대한약침학회지
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    • 제6권2호
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    • pp.57-65
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    • 2003
  • Objective : This study was carried out to systemically investigate the effect of Joongwan(中脘; CV12) acupuncture in cerebrum and cerebellum of indomethacin-induced gastrointestinal disease in SD-rats. Method : 1. We induced gastrointestinal disease by indomethacin oral administration in SD-rats. 2. We selected Joongwan(中脘; CV12) acupuncture point that generally have been used to treat gastrointestinal disease. 3. We categorized SD-rats into three groups as followings. (1) Normal group : The group without any management (2) Control group : The group with indomethacin-induced gastrointestinal disease (3) Treated group : The group that Joongwan(中脘; CV12) acupuncture was performed after inducing gastrointestinal disease 4. We figured out the effect of acupuncture by analyzing staining degree of NADPH-diaphorase in cerebrum and cerebellum. Results : 1. Cerebrum (1) Normal group : The degree of staining was very low. (2) Control group : NADPH-diaphorase was mainly stained in cerebral cortex and the stained region was wider than Normal group. (3) Treated group : The degree and region of staining was higher and wider than the other goups. Sometimes the intensively stained regions were observed. 2. Cerebellum In both cases of Control group and Treated group, the regions in cortex were stained mainly. But, between Control group and Treated group, there was no remarkable difference. Conclusion : In case of cerebellum, there was no remarkable result. On the other hand, in case of cerebrum, there were certain differences among three groups. Through those results, we could conclude that Joongwan(中脘; CV12) acupuncture treatment was able to affect NADPH-diaphorase expression in the cerebrum of SD-rats that have gastrointestinal disease with indomethacin-inducing.

Overexpression of Cyclin L2 Inhibits Growth and Enhances Chemosensitivity in Human Gastric Cancer Cells

  • Li, Hong-Li;Huang, Ding-Zhi;Deng, Ting;Zhou, Li-Kun;Wang, Xia;Bai, Ming;Ba, Yi
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권4호
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    • pp.1425-1430
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    • 2012
  • Cyclin L2 is a novel member of the cyclin family, recently implicated in the regulation of cell cycle progression and/or transcriptional regulation. The present study was undertaken to investigate the effects of overexpression on tumor cell growth and chemosensitivity in human gastric cells in vitro. Cyclin L2 was transfected into human gastric cancer cell line BCG823 and expressed with a mammalian expression vector pcDNA3.1. The effects and mechanisms of cyclin L2 on cell growth, cell cycling and apoptosis were studied. Compared to control vectors, overexpression of cyclin L2 inhibited the growth of BCG823 cells and enhance their chemosensitivity to fluorouracil, docetaxel and cisplatin. The anti-proliferative effects of cyclin L2 could be due to G0/G1 arrest and apoptosis. Cyclin L2 induced G0/G1 arrest and apoptosis involved upregulation of caspase-3 and down regulation Bcl-2 and survivin. The results indicated that overexpression of cyclin L2 protein may promote efficient growth inhibition and enhance chemosensitivity to chemotherapeutic agents in human gastric cancer cells by inducing G0/G1 cell cycle arrest and apoptosis.

생강(生薑) 추출물의 위장관 기능개선 및 체온저하 억제효과에 대한 실험적 연구 (Effect on Promoting Gastrointestinal Function and Inhibiting of Decreasing Body Temperature of Ginger Extracts(Zingiber Officinale))

  • 김남석;정일국;이창현
    • 동의생리병리학회지
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    • 제24권6호
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    • pp.996-1003
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    • 2010
  • This study was performed to investigate the effect of promoting gastrointestinal function and inhibiting of decreasing body temperature of ginger extract(Zingiber officinale) in rats. In order to elucidate the gastrointestinal function and inhibiting effect of body temperature of native ginger and improved ginger, water extracts of ginger were orally administrated into rats. The results are as follows: The gastrointestinal transit time was significantly decreased in native ginger(7.66hrs) and improved ginger(7.72hrs) extract administrated groups compare to control group(8.44hrs). The mean red faecal weight was increased in native ginger(30.6%) and improved ginger(31.1%) extract administrated groups compare to control group(24.9%) for 24hrs. Inhibiting effect of decreasing body temperature induced by serotonin was increased in native ginger($1.116^{\circ}C$) and improved ginger($1.416^{\circ}C$) extract administrated groups compare to positive control group($0.384^{\circ}C$) during 40 minutes. Gastrin and CGRP immunoreactive density was more strongly expressed in native ginger and improved ginger extract administrated groups compare to control group. Serotonin immunoreactive density was more weakly expressed in native ginger and improved ginger extract administrated groups compare to control group. These results suggest that ginger extracts may enhance physiological activity such as gastrointestinal motility, protection of mucosa and gastric acid secretion in gastrointestinal tracts, and inhibits decreasing body temperature

Rectal cancer-derived exosomes activate the nuclear factor kappa B pathway and lung fibroblasts by delivering integrin beta-1

  • Qingkun Gao;Ke An;Zhaoya Gao;Yanzhao Wang;Changmin Ding;Pengfei Niu;Fuming Lei
    • The Korean Journal of Physiology and Pharmacology
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    • 제27권4호
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    • pp.375-381
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    • 2023
  • Numerous studies have revealed the importance of tumor-derived exosomes in rectal cancer (RC). This study aims to explore the influence of tumor-derived exosomal integrin beta-1 (ITGB1) on lung fibroblasts in RC along with underlying mechanisms. Exosome morphology was observed using a transmission electron microscope. Protein levels of CD63, CD9, ITGB1, p-p65 and p65 were detected using Western blot. To determine ITGB1's mRNA expression, quantitative real-time polymerase chain reaction was used. Moreover, levels of interleukin (IL)-8, IL-1β, and IL-6 in cell culture supernatant were measured via commercial ELISA kits. ITGB1 expression was increased in exosomes from RC cells. The ratio of p-p65/p65 as well as levels of interleukins in lung fibroblasts was raised by exosomes derived from RC cells, while was reduced after down-regulation of exosomal ITGB1. The increased ratio of p-p65/p65 as well as levels of pro-inflammatory cytokines caused by exosomes from RC cells was reversed by the addition of nuclear factor kappa B (NF-κB) inhibitor. We concluded that the knockdown of RC cells-derived exosomal ITGB1 repressed activation of lung fibroblasts and the NF-κB pathway in vitro.

Gastrointestinal hemangioma in childhood: a rare cause of gastrointestinal bleeding

  • Han, Eon Chul;Kim, Soo-Hong;Kim, Hyun-Young;Jung, Sung-Eun;Park, Kwi-Won
    • Clinical and Experimental Pediatrics
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    • 제57권5호
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    • pp.245-249
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    • 2014
  • Gastrointestinal (GI) hemangiomas are relatively rare benign vascular tumors. The choice of an appropriate diagnostic method depends on patient age, anatomic location, and presenting symptoms. However, GI hemangiomas are not a common suspected cause of GI bleeding in children because of their rarity. Based on medical history, laboratory results, and imaging study findings, the patient could be treated with either medication or surgery. Herein, we report 3 cases of GI hemangioma found in the small bowel, rectum, and GI tract (multiple hemangiomas). Better knowledge and understanding of GI hemangioma could help reduce the delayed diagnosis rate and prevent inappropriate management. Although rare, GI hemangiomas should be considered in the differential diagnosis of GI bleeding.

Examination of gastrointestinal helminth in livestock grazing in grassland of Bangladesh

  • Mondal, M.-Motahar-Hussain;Islam, M-Khyrul;Hur, Jin;Lee, John-Hwa;Baek, Byeong-Kirl
    • Parasites, Hosts and Diseases
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    • 제38권3호
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    • pp.187-190
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    • 2000
  • To determine association of grassland with parasitic diseases of livestock in Bangladesh, the 'Tracer' animals (two cow calves and two goats) were released for a month in a grassland used for communal grazing of livestock near school premise in Kanthal, Trishal, Mymensingh, Bangladesh. After slaughtering of the tracer animals, their gastrointestinal tract examination revealed six species of nematode and one cestode. The nematode species were Haemonchus contortus, Trichostrongylus axei, Mecistocirrus digitatus, Oesophagostomum spp., Trichuris spp. and Bunostomum sp. The cestode was one of the genus Moniezia. With this preliminary study, grasslands are thought to be one of the main sources of gastrointestinal parasitic diseases of livestock in Bangladesh.

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감초사심탕(甘草瀉心湯)을 이용한 위궤양 환자에서 나타난 위장관 증상 치험 1례 (A Case Report of Gastrointestinal Symptoms in Gastric Ulcer Treated with Gamchosasim-tang)

  • 김경림;정유진;김경민
    • 대한한방내과학회지
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    • 제40권5호
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    • pp.878-887
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    • 2019
  • Objective: The purpose of this case report was to report the effect of Gamchosasim-tang in patients with gastrointestinal symptoms due to gastric ulcer. Methods: We treated a patient suffering from epigastric pain, sucking sensations in the epigastrium, and nausea using Gamchosasim-tang (甘草瀉心湯) for 35 days. The patient's symptoms were charted and evaluated using a visual analogue scale (VAS) and a gastrointestinal symptom rating scale (GSRS). Results: After treatment, the symptoms related to gastric ulcer were decreased and evaluation using the VAS and GSRS showed improvement in the patient. Conclusion: This study shows that Korean medicine treatment with Gamchosasim-tang may be valuable for relieving gastric ulcer symptoms.

Effects of Analgecine on Oxaliplatin-Induced Neurotoxicity in Patients with Gastrointestinal Cancer

  • Liu, Meng-Yan;Huang, Xin-En
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권10호
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    • pp.4465-4468
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    • 2015
  • Background: As the third generation of platinum-based antineoplastic agent aginst gastrointestinal cancer, oxaliplatin is considered to be associated with severe sensory neurotoxicity. Acorrding to previous studies, vitaminE, intravenous Ca/Mg and glutamine may partly reduce the incidence and severity of oxaliplatin-induced neurotoxicity. The aim of this study was to investigate the safety and efficacy of analgecine for preventing oxaliplatin-induced neurotoxicity in the patients with gastrointestinal tumors. Method: In this study, patients undergoing oxaliplatin-based chemotherapy were assigned to analgecine (experimental) group or control group. Analgecine 6ml was administered once a day for seven days from the day of oxaliplatin treatment. The National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE; version 3) was used to evaluate oxaliplatin-induced neurotoxicity. The incidence rates and grade of neurotoxicity of patients were assessed before and during (after four and eight cycles) treatment. Results: Totally, 82 patients were enrolled in this study, 42 in experimental group and 40 in control group. The occurrence of each grade neurotoxicity in the experimental group was significantly lower than that in control group. The overall occurrence rate was 31% vs 55% (P=0.043) after 4 cycles and 52% vs 75% (P=0.050) after 8 cycles. Conclusion: Analgecine appears could be effective in reducing oxaliplatin-induced neurotoxicity and be applicated for patients with gastrointestinal tumors who would be treated with oxaliplatin-based chemotherapy.

Film screen system과 DR system하의 상부위장관 조영술 진단 결과의 비교 분석 (Comparison Film Screen System with Digital Radiographic System in upper gastrointestinal study)

  • 이희정;손순룡;강성호;장용철;류명선
    • 대한방사선협회지
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    • 제28권1호
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    • pp.55-60
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    • 2002
  • Purpose : The aim of this study is to rise interest in system control for digital image of high quality by investigating diagnostic value of Digital radiographic system in upper gastrointestinal study Materials and Method : Upper gastrointestinal study wa

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