• 제목/요약/키워드: Helicobacter

검색결과 707건 처리시간 0.029초

Helicobacter pylori의 생육에 영향을 미치는 성분과 식품첨가물에 관한 연구 (Studies on Food Components and Food Additives Affecting the Growth Patterns of Helicobacter pylori)

  • 정혜진
    • 한국식품영양학회지
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    • 제12권5호
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    • pp.470-477
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    • 1999
  • The purpose of this study was to choose prinicipal food components contained in diet foods and food additives used for manufacturing processed foods and elucidate their in vivo effects on the growth pattern of Helicobacter pylori. To do this the antibacterial effects of various sources of carbon nitrogen and mineral as an effect agent on Helicobacter pylori were first assessed based upon bacterial growth degree. results show that the source of carbon tested had different effects on bacterial growth of Helicobacter pylori. It was revealed that a promotional effect of monosaccharides resulted in enhanced growth of Helicobacter pylori compared with disaccharides and polysacchrides, in particular glucose was observed to be most effective in growth of Helicobacter pylori among monosaccharides teste whereas mannose to hinder the growth of Helicobacter pylori. Polyols such as sorbitol mannitol maltitol and xylitol was however observed to show no promotion or suppression effect on growth of Helicobacter pylori. Apart from these the sources of amino acid and inorganic nitrogen were chosen and tested to assess the promotion or suppression effect of nitrogen sources on growth of helicobacter pylori. It was found that amino acid such as lysine showed its promotion effect on the growth of Helicobacter pylori while arginine (NH4)2SO4 and NH4Cl showed no effect on its growth. Ammoia and urea were however observed to have a positive effect on the growth of Helicobacter pylori. Among these effect agents lysine and methionine were revealed to show the most positive effect on growth of Helicobacter pylori. Minerals such as MgSO4 KH2PO4 and MgCl2 appered to exert their positive growth effects whereas CaCl2 and CaSo4 had a little effect. In addition FeSO4 FeCl2 and FeCl3 brought suppression on the growth of helicobacter pylori. In studies of the growth of Helicobacter pylori by food additives ascorbic acid showed extreme suppression on its growth,. Sodium nitrate and sodium chloride were also found to be of negative effect on the growth of Helicobacter pylori in rder of degree whereas tocopherol had nothing to do with microbial growth.

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개에서 Helicobacter-like organism의 검출 (The Detection of Helicobacter-like Organisms in Dogs)

  • 안중호;남헌우;한정희;김두
    • 한국임상수의학회지
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    • 제16권2호
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    • pp.281-288
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    • 1999
  • Helicobacter species have been identified in or isolated from domestic carnivores, but their prevalence in different population of animals and their clinical significance are still unknown. This study was peformed to evaluate the prevalence of Helicobacter in clinically healthy dogs by urease test, culture, morphological examination and polymerase chain reaction (PCR) technique. Tissue samples from 70 dogs in Kangwon and Kyunggi areas from August 1998 to April, 1999, were examined. The detection rates of Helicobacter by urease activity of tissue-samples were 84.6%, 61.3% and 4.8 % in the fundus, the antrum and the duodenum, respectively. One strain of Helicobacter was isolated from the duodenum. It was identified as H canis by biochemical and morphorogical examination. The detection rates of Helicobacter by histological examination were 92.3%, 79.0% and 4.8% in the fundus, antrum and the duodenum, respectively. Helicobacter organisms were colonized more in the gastric pits than in the surface of epithelium, the gastric gland or the parietal cell. Although most of dogs were colonized with Helicobacter in tissue, gross lesions and specific histopathological lesions caused by Helicobacter in these tissues were not observed. The detection rate of Helicobacter by PCR was 78.6%. The histological examination was more sensitive than urease test, culture or PCR technique for the detection of Helicobacter.

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개의 Helicobacter species 감염 실태 (Prevalence of Helicobacter species infection in dogs)

  • 남헌우;김두
    • 대한수의학회지
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    • 제40권4호
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    • pp.747-753
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    • 2000
  • Helicobacter species have commonly been isolated from the gastric mucosa of humans and animals, however have not been known its association with clinical signs. This study was aimed to detect and identify Helicobacter species in the canine stomach by urease test and polymerase chain reaction(PCR). A total of 87 dogs in Kangwon and Kyunggi areas from August, 1998 to June, 1999 were examined. The detection rate of Helicobacter species by urease test for fundal biopsy samples was 83.9%, and positive rate was increased as incubation time was increased. Helicobacter species was detected in the seventy seven dogs(88.5%) of total 87 dogs by PCR. The fifty five strains of the 77 strains of Helicobacter species were identified as H heilmannii and the three strains were identified as H felis by PCR, but the nineteen strains were not identified.

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개의 Helicobacter 균속 감염 진단을 위한 비 침습적 분변 PCR 분석법 (Development of Non-Invasive Fecal PCR Assay for Detecting the Helicobacter Species Infection in Dogs)

  • Cheol-Yong Hwang;Hwa-Young Youn;Hong-Ryul Han
    • 한국임상수의학회지
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    • 제19권3호
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    • pp.295-298
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    • 2002
  • 본 연구에서는 개의 Helicobacter 균속 감염을 비침습적 방법으로 진단하기 위해 분변을 시료로한 PCR 검사법을 확립하고 그 효능을 검정하고자 하였다. 분변 PCR 분석은 분변에서 채취된 DNA에서 Helicobacter 균속의 16S RNA의 특이적인 영역에 반응하는 primer를 이용해 수행하였다. 분변 PCR분석법에 의한 결과와 위조직 검사 법 결과를 비교해 본 결과 분변 PCR분석법은 높은 특이도 (100%)와 민감도(96%)를 나타내었다. 도한 확립된 분볍 PCR분석법을 이용해 국내 애완결들의 위내 Helicobacter 균속 감염율을 조사한 결과 감염율이 72.1%로 나타났다. 이상의 결과 본 연구에서 확립한 분변 PCR 분석법은 개의 Helicobacter 균 감염을 진단할 수 있는 새로운 비침습적 진단방법으로 이용될 수 있으리라 사료된다.

개의 위내 Helicobacter 균속 감염에 대한 삼중요법의 효과 (Effect of Triple Therapy on Eradication of Gastric Helicobacter Species Infection in Dogs)

  • Hwang, Cheol-Yong;Youn, Hwa-Young;Han, Hong-Ryul
    • 한국임상수의학회지
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    • 제18권3호
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    • pp.201-205
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    • 2001
  • 위내 Helicobacter 균속에 자연 감염된 개에서 삼중요법의 효과를 알아보기 위해 Helicobacter 균속에 자연 감염된 것으로 판명된 7두의 개를 대상으로 amoxicillin, metronidazole을 14일간 경구투여하였다. 삼중요법 실시에 따른 Helicobacter 균속 감염상태 변화를 평가하기 위해 투여 7일째, 14일째 그리고 투여 중지후 30일째의 위생검 조직에 대한 요소검사, Helicobacter 균속에 대한 중합효소 연쇄반응 검사와 함께 분변시료를 이용한 중합효소 연쇄반응 검사를 실시하였다. 삼중요법 14일째 위생검 조직의 요소검사에서는 7두중 6두가 음성이었으나 위생검조직과 분변시료의 중합효소 연쇄반응 검사에서는 각각 3두와 4두만이 음성이었다. 삼중요법 중지후 30일째 검사에서는 각 검사법이 모두 동일한 결과를 나타내었는데 7두중 3두에서 음성으로 나타났다. 이상의 결과를 바탕으로 위내 Helicobacter 균속에 자연 감염된 개에서 amoxicillin, metronidazole과 omeprazole을 이용한 삼중요법은 Helicobacter 균속 감염 정도를 낮추거나 때로는 완전 박멸할 수 있을 것으로 보여지기에 만성위염의 임상증상을 나타내는 개의 Helicobacter 균속 감염증에 적용할 수 있으리라 사료된다.

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위암발증 원인에 대한 생활습관 및 영양섭취에 있어서 농촌지역 주민 조사 -강원도 화천군 주민의 Helicobacter pylori 감염률을 중심으로- (Survey on the Risk Factor Affecting on the Gastric Cancer Incident to the Healthy Adults in Rural Area -Infection of Helicobacter pylori in Whachon Area Kang-Won Do-)

  • 이정선
    • 한국식품영양학회지
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    • 제12권1호
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    • pp.13-19
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    • 1999
  • To examine the relationship between the casual infection of gastric cancer and lifestyle and nutritional status we surveyed 169 persons 90 females and 79 males aged 40∼69 years from June 7 to June 14 1997 in Whachon area Kang-Won Do Korea. For this purpose we investigated Helicobacter pylori infec-tion and identified the effect of sex age, smoking alcohol consumption economic status occupation life-style and food intake on Helicobacter phlori infection. Helicobacter pylori status was evaluated using an en-zyme-linked immunosorbant assay(ELISA) for anti-Helicobacter pylori immunoglobulin G(IgG). Helicob-acter pylori infection was present in 66.3% of total subjects namely 67.7% of female and 64.4% of male and its prevalence increased with smoking low education level and low monthly income. Energy total protein calcium and vitamin C intakes in the negative Helicobacgter phlori infection group were higher than those in positive Helicobacter pylori infection group. However iron and niacin intakes were lower in the helicobacter pylori negative group than in the positive group.

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Helicobacter Pylori에 의해 유발(誘發)되는 위질환(胃疾患)에 대(對)한 고찰(考察) (A Study on the Gastric diseases caused by Helicobacter Pylori)

  • 이연월;손창규;조종관
    • 혜화의학회지
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    • 제8권2호
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    • pp.153-170
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    • 2000
  • This paper presents a study for a development of the oriental medical treatment on the gastric disease caused by Helicobacter Pylori. Helicobacter Pylori is observed in stomach mucosa and it is caused gastric disease via various routes. Helicobacter Pylori is spread generally mouth to mouth by men. So it is related to personal health condition or life style. The treatment of Helicobacter Pylori is an antibiotic combination therapies, but it caused a problem of side effect and drug resistant. In the oriental medical treatment, an immunopotentiation reduces an infective rate of Helicobacter Pylori and prevents a progressive gastric disease.

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Helicobacter heilmannii 균 감염이 확인된 개에서의 위장염 발생 증례 (Gastritis in a Dog Infected with Helicobacter heilmannii)

  • 황철용;윤화영;한홍율
    • 한국임상수의학회지
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    • 제19권3호
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    • pp.375-378
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    • 2002
  • A 3-year-old intact female korean pungsan dog showing chronic intermittent vomiting and anorexia was admitted to The Veterinary Medical leaching Hospital of Seoul National University. The patient had been received antiemetics, antacids or proton pump inhibitor for these symptoms but had not been recovered yet. All results of physical examination, complete blood count, serum chemical analysis, fecal test and radiography were normal. Gastric endoscopic examination was also performed and gastritis with hemorrhage on near antrum region was detected. In PCR assay of bioptic gastric tissues for detecting Helicobacter species infection, Helicobacter heilmannii infection was confirmed. After receiving triple therapy with amoxicillin, metronidazole and omeprazole for 21 days, all symptoms were recovered and had not been occurred again. Helicobacter heilmannii also were not detected.