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Helicobacter and cancer prevention and treatment

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https://www.readbyqxmd.com/read/29460136/development-and-assessment-of-a-helicobacter-pylori-medication-adherence-and-stomach-cancer-prevention-curriculum-for-a-chinese-american-immigrant-population
#1
Simona C Kwon, Julie A Kranick, Nassira Bougrab, Janet Pan, Renee Williams, Guillermo Ignacio Perez-Perez, Chau Trinh-Shevrin
Chinese American immigrants are at increased risk for Helicobacter pylori infection and stomach cancer. Despite their increased risk, very few prevention strategies exist which target this vulnerable population. The purpose of this article is to present the stakeholder engaged development, review, assessment, refinement, and finalization of a H. pylori treatment adherence and stomach cancer prevention curriculum specifically designed to engage vulnerable, limited English proficient Chinese Americans in New York City...
February 19, 2018: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
https://www.readbyqxmd.com/read/29458240/benign-and-malignant-gastroduodenal-diseases-associated-with-helicobacter-pylori-a-narrative-review-and-personal-remarks-in-2018
#2
György M Buzás
The subject of Helicobacter pylori continues to elicit worldwide interest in many research fields. Epidemiological data suggest that the prevalence of the infection is decreasing in Western/developed countries and even in some developing regions, but this is masked by the high prevalence in the most populous regions. Chronic gastritis, caused invariably by the bacterium, was again classified in Kyoto and Helicobacter pylori-associated gastritis was included as a distinct entity. The prevalence of peptic ulcers is decreasing, but bleeding ulcers are a challenging problem, with stable mortality levels even in the endoscopic era...
February 19, 2018: Minerva Gastroenterologica e Dietologica
https://www.readbyqxmd.com/read/29445300/gastric-cancer-epidemiology-prevention-classification-and-treatment
#3
REVIEW
Robert Sitarz, Małgorzata Skierucha, Jerzy Mielko, G Johan A Offerhaus, Ryszard Maciejewski, Wojciech P Polkowski
Gastric cancer is the second most common cause of cancer-related deaths in the world, the epidemiology of which has changed within last decades. A trend of steady decline in gastric cancer incidence rates is the effect of the increased standards of hygiene, conscious nutrition, and Helicobacter pylori eradication, which together constitute primary prevention. Avoidance of gastric cancer remains a priority. However, patients with higher risk should be screened for early detection and chemoprevention. Surgical resection enhanced by standardized lymphadenectomy remains the gold standard in gastric cancer therapy...
2018: Cancer Management and Research
https://www.readbyqxmd.com/read/29410309/gastroprotective-effects-of-hwanglyeonhaedok-tang-against-helicobacter-pylori-induced-gastric-cell-injury
#4
Hee-Seon Park, Charith Ub Wijerathne, Hye-Yun Jeong, Chang-Seob Seo, Hyekyung Ha, Hyo-Jung Kwun
ETHNOPHARMACOLOGICAL RELEVANCE: Helicobacter pylori, which is found in the stomachs of approximately half of the world's population, has been associated with the development of chronic gastritis and gastric cancer. Hwanglyeonhaedok-tang (HHT) is a popular traditional medicine for the therapies of gastric ulcers and gastritis. AIM OF THE STUDY: The emerging resistance of H. pylori to antibiotics arouses requirement on alternative nonantibiotic-based therapies. In the present study, we investigated the anti-inflammatory activity and anti-microbial activity of HHT against H...
February 1, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29251014/amaranth-oil-reduces-accumulation-of-4-hydroxynonenal-histidine-adducts-in-gastric-mucosa-and-improves-heart-rate-variability-in-duodenal-peptic-ulcer-patients-undergoing-helicobacter-pylori-eradication
#5
Andriy Cherkas, Kamelija Zarkovic, Ana Čipak, Morana Jaganjac, Lidija Milković, Orest Abrahamovych, Ostap Yatskevych, Georg Waeg, Olha Yelisyeyeva, Neven Zarkovic
Helicobacter pylori-induced oxidative stress in gastric mucosa (GM) is a milieu for the development of chronic gastritis, duodenal peptic ulcer (DPU), gastric cancer and a number of extragastric diseases. Because our previous study revealed the accumulation of the protein adducts of lipid peroxidation product 4-hydroxynonenal (HNE) in GM, which persists after eradication of H. pylori, the aim of the study was to test whether Amaranth oil supplementation in addition to standard anti-Helicobacter treatment could prevent such accumulation of HNE in GM in H...
December 17, 2017: Free Radical Research
https://www.readbyqxmd.com/read/29110085/safety-of-first-line-triple-therapy-with-a-potassium-competitive-acid-blocker-for-helicobacter-pylori-eradication-in-children
#6
Chika Kusano, Takuji Gotoda, Sho Suzuki, Hisatomo Ikehara, Mitsuhiko Moriyama
BACKGROUND: Helicobacter pylori infection is a risk factor for gastric cancer, and it has been reported that eradication of H. pylori is effective for preventing such cancer. Recently, H. pylori eradication has been performed in children as first-line therapy against gastric cancer. Here, we report use of triple therapy with a potassium-competitive acid blocker (P-CAB) for H. pylori eradication in children. METHODS: H. pylori infection testing and eradication therapy began in fiscal year 2015 in junior high school students located in Yurihonjo city and Nikaho city, Akita prefecture, Japan...
November 7, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28970547/ginsenosides-rb3-and-rd-reduce-polyps-formation-while-reinstate-the-dysbiotic-gut-microbiota-and-the-intestinal-microenvironment-in-apc-min-mice
#7
Guoxin Huang, Imran Khan, Xiaoang Li, Lei Chen, Waikit Leong, Leung Tsun Ho, W L Wendy Hsiao
Studies showed that manipulation of gut microbiota (GM) composition through the treatment of prebiotics could be a novel preventive measure against colorectal cancer (CRC) development. In this study, for the first time, we assessed the non-toxic doses of the triterpene saponins (ginsenoside-Rb3 and ginsenoside-Rd) - as prebiotics - that effectively reinstated the dysbiotic-gut microbial composition and intestinal microenvironment in an Apc(Min/+) mice model. Rb3 and Rd effectively reduced the size and the number of the polyps that accompanied with the downregulation of oncogenic signaling molecules (iNOS, STAT3/pSTAT3, Src/pSrc)...
October 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28969123/prevalence-of-specific-helicobacter-pyloricaga-vaca-icea-urec-genotypes-and-its-clinical-relevance-in-the-patients-with-acid-peptic-diseases
#8
Himani Bhardwaj Pandya, Harihar Hardas Agravat, Jagdish Shantilal Patel
INTRODUCTION: Virulent markers of H. pylori, the vacuolating cytotoxin (vacA), cytotoxin-associated gene A (cagA), induced by contact with epithelium factor antigen (iceA gene) and the urease C gene (ureC) may plays a major role in determining the clinical outcome of Helicobacter infections. AIM: To detect the prevalence of the cagA, vacA, ureC and iceA genotypes of H. pylori from antral biopsy specimens of patients and to associate its role in specific disease...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28920420/metachronous-gastric-cancer-following-curative-endoscopic-resection-of-early-gastric-cancer
#9
Seiichiro Abe, Ichiro Oda, Takeyoshi Minagawa, Masau Sekiguchi, Satoru Nonaka, Haruhisa Suzuki, Shigetaka Yoshinaga, Amit Bhatt, Yutaka Saito
This review article summarizes knowledge about metachronous gastric cancer (MGC) occurring after curative endoscopic resection (ER) of early gastric cancer (EGC), treatment outcomes of patients who developed MGC, and efficacy of Helicobacter pylori eradication to prevent MGC. The incidence of MGC following curative ER increases over time and is higher than in patients undergoing gastrectomy. Increasing age and multifocal EGC are independent risk factors for developing MGC. An MGC following curative ER is usually a small (<20 mm) and differentiated intramucosal cancer...
September 18, 2017: Clinical Endoscopy
https://www.readbyqxmd.com/read/28771198/prevention-of-gastric-cancer-eradication-of-helicobacter-pylori-and-beyond
#10
REVIEW
Tetsuya Tsukamoto, Mitsuru Nakagawa, Yuka Kiriyama, Takeshi Toyoda, Xueyuan Cao
Although its prevalence is declining, gastric cancer remains a significant public health issue. The bacterium Helicobacter pylori is known to colonize the human stomach and induce chronic atrophic gastritis, intestinal metaplasia, and gastric cancer. Results using a Mongolian gerbil model revealed that H. pylori infection increased the incidence of carcinogen-induced adenocarcinoma, whereas curative treatment of H. pylori significantly lowered cancer incidence. Furthermore, some epidemiological studies have shown that eradication of H...
August 3, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28691004/population-knowledge-attitude-and-practice-regarding-helicobacter-pylori-transmission-and-outcomes-a-literature-review
#11
REVIEW
Lisa J Driscoll, Heidi E Brown, Robin B Harris, Eyal Oren
BACKGROUND: Helicobacter pylori infection is associated with the development of chronic gastritis, peptic ulcer disease, and gastric cancer. Current clinical recommendations are that H. pylori test-and-treat should be individualized based on comorbidities and patient preferences among populations at increased risk for certain morbidities. However, knowledge, attitudes and practices regarding H. pylori among potential patient populations are largely unknown. MATERIALS: We conducted a literature review to assess knowledge, attitudes, and practices of patients or community populations around H...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28668512/h-pylori-infection-increases-gastric-mucosal-cox2-and-mtor-expression-in-chronic-gastritis-implications-for-cancer-progression
#12
Dalia M Badary, Mohammed Zakaria Ali Abu Rahma, Ahmed M Ashmawy, Mohamed Z Hafez
BACKGROUND: Helicobacter Pylori is a Gram-negative bacterium that infects the human stomach and plays an important role in the pathogenesis of chronic gastritis. H. pylori associated chronic gastritis affects various molecular markers related to gastric cancer development. The aim of this study to assess the effect of H. pylori infection on gastric mucosa and to explore its role in gastric carcinogenesis via COX2 and mTOR mucosal expression. MATERIALS AND METHODS: This study comprised archival blocks from 60 dyspeptic patients who underwent gastric endoscopic biopsies for histopathological examination...
September 2017: Pathophysiology: the Official Journal of the International Society for Pathophysiology
https://www.readbyqxmd.com/read/28616085/helicobacter-pylori-infection-old-and-new
#13
REVIEW
S Diaconu, A Predescu, A Moldoveanu, C S Pop, C Fierbințeanu-Braticevici
Helicobacter pylori is a spiral-shaped bacterium that grows in the digestive tract and may be present in more than half of the world's population. The clinical features of Helicobacter pylori range from asymptomatic gastritis to gastrointestinal malignancy. Mucosa-associated lymphoid tissue (MALT) lymphoma is a low-grade B-cell marginal zone lymphoma and Helicobacter pylori has been detected in more than 75% of the patients with MALT lymphoma. Many tests for the detection of Helicobacter pylori are available, including antibody tests, urea breath tests, stool antigen tests and endoscopic biopsies...
April 2017: Journal of Medicine and Life
https://www.readbyqxmd.com/read/28577915/histo-blood-group-carbohydrates-as-facilitators-for-infection-by-helicobacter-pylori
#14
REVIEW
Cinara Cássia Brandão de Mattos, Luiz Carlos de Mattos
Helicobacter pylori infect millions of people around the world. It occupies a niche in the human gastrointestinal tract characterized by high expression of a repertoire of carbohydrates. ABO and Lewis histo-blood group systems are controlled by genes coding for functional glycosyltransferases which synthesize great diversity of related fucosylated carbohydrate in different tissues, including gastrointestinal mucosa, and exocrine secretions. The structural diversity of histo-blood group carbohydrates is highly complex and depends on epistatic interactions among gene-encoding glycosyltransferases...
September 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28569272/gastric-adenocarcinoma
#15
REVIEW
Jaffer A Ajani, Jeeyun Lee, Takeshi Sano, Yelena Y Janjigian, Daiming Fan, Shumei Song
Gastric cancers, with gastric adenocarcinoma (GAC) as the most common histological type, impose a considerable global health burden. Although the screening strategies for early detection have been shown to be successful in Japan and South Korea, they are either not implemented or not feasible in most of the world, leading to late diagnosis in most patients. Helicobacter pylori infection contributes to the development of many endemic GACs, and pre-emptive eradication or early treatment of this bacterial infection might provide effective primary prevention...
June 1, 2017: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/28492711/curcumin-in-combination-with-triple-therapy-regimes-ameliorates-oxidative-stress-and-histopathologic-changes-in-chronic-gastritis-associated-helicobacter-pylori-infection
#16
RANDOMIZED CONTROLLED TRIAL
Arezu Judaki, Asghar Rahmani, Jalil Feizi, Khairollah Asadollahi, Mohammad Reza Hafezi Ahmadi
BACKGROUND: Helicobacter pylori (H. pylori) gastric infection is a main cause of inflammatory changes and gastric cancers. OBJECTIVE: The aim of this study was finding the effects of curcumin on oxidative stress and histological changes in chronic gastritis associated with H. pylori. METHODS: In a randomized clinical trial, patients were divided into two groups: a standard triple therapy group and triple therapy with curcumin group. Endoscopic and histological examinations were measured for all patients before and after 8 weeks...
July 2017: Arquivos de Gastroenterologia
https://www.readbyqxmd.com/read/28488765/antitumoral-potential-antioxidant-activity-and-carotenoid-content-of-two-southern-italy-tomato-cultivars-extracts-san-marzano-and-corbarino
#17
Daniela Barone, Letizia Cito, Giuseppina Tommonaro, Agnese A Abate, Danila Penon, Rocco De Prisco, Antonella Penon, Iris M Forte, Elisabetta Benedetti, Annamaria Cimini, Paola Indovina, Barbara Nicolaus, Francesca Pentimalli, Antonio Giordano
Gastric cancer represents a diffuse and aggressive neoplasm, whose mortality index is among the highest in the world. Predisposing factors are E-cadherin mutations, Helicobacter pylori infection, and a diet rich in salted and smoked food, with a low intake of fresh fruits and vegetables. Here, we analyzed the effect of total lipophilic extracts of two Southern Italy tomato varieties, San Marzano and Corbarino, on an in vitro model of gastric cancer, YCC-1, YCC-2 and YCC-3 cell lines, characterized by different aggressiveness...
February 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28473630/epidermal-growth-factor-receptor-inhibition-downregulates-helicobacter-pylori-induced-epithelial-inflammatory-responses-dna-damage-and-gastric-carcinogenesis
#18
Johanna C Sierra, Mohammad Asim, Thomas G Verriere, M Blanca Piazuelo, Giovanni Suarez, Judith Romero-Gallo, Alberto G Delgado, Lydia E Wroblewski, Daniel P Barry, Richard M Peek, Alain P Gobert, Keith T Wilson
OBJECTIVE: Gastric cancer is the third leading cause of cancer death worldwide and infection by Helicobacter pylori is the strongest risk factor. We have reported increased epidermal growth factor receptor (EGFR) phosphorylation in the H. pylori-induced human carcinogenesis cascade, and association with DNA damage. Our goal was to determine the role of EGFR activation in gastric carcinogenesis. DESIGN: We evaluated gefitinib, a specific EGFR inhibitor, in chemoprevention of H...
May 4, 2017: Gut
https://www.readbyqxmd.com/read/28462373/oxidative-stress-resulting-from-helicobacter-pylori-infection%C3%A2-contributes-to-gastric-carcinogenesis
#19
REVIEW
Lindsay D Butcher, Gerco den Hartog, Peter B Ernst, Sheila E Crowe
Helicobacter pylori is a gram-negative, microaerophilic bacterium that infects the stomach and can lead to, among other disorders, the development of gastric cancer. The inability of the host to clear the infection results in a chronic inflammatory state with continued oxidative stress within the tissue. Reactive oxygen species and reactive nitrogen species produced by the immune and epithelial cells damage the host cells and can result in DNA damage. H pylori has evolved to evoke this damaging response while blunting the host's efforts to kill the bacteria...
May 2017: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28451066/helicobacter-pylori-recurrence-after-eradication-in-latin-america-implications-for-gastric-cancer-prevention
#20
Juan E Corral, Robertino Mera, Corey W Dye, Douglas R Morgan
AIM: To estimate Helicobacter pylori (H. pylori) recurrence rate in Latin America, a region with a significant H. pylori prevalence and gastric cancer burden. METHODS: PubMed, LILACS, SciELO, Cochrane databases and abstracts from relevant meetings were reviewed. Information collected included: Participants' characteristics, recruitment strategy, diagnostic modality, treatment arms, follow-up and recurrence rates. Recurrence was calculated using 100-patients-year rates, and data were pooled using a random effects model...
April 15, 2017: World Journal of Gastrointestinal Oncology
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