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Helicobacter eradication

X B Si, Y Lan, L Qiao
Objective: The bismuth containing quadruple therapy (BCQT) acts as first-line therapy in China. Probiotics supplement also shows Helicobacter pylori eradication effects. Adding probiotics along with BCQT may improve eradication rate of Helicobacter pylori. Methods: Electronic databases including Medline, Embase, Wanfang Database, etc. were searched by the established searching strategy. After that, a funnel plot was adopted to evaluate publication bias. The meta-analysis was supplemented in fixed effect model for low heterogeneity and randomized effect model for high heterogeneity conversely...
October 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
Naïma Raaf, Wahiba Amhis, Houria Saoula, Ahmed Abid, Mhamed Nakmouche, Abdelmalek Balamane, Nassima Ali Arous, Mounira Ouar-Korichi, Filipa F Vale, Lucie Bénéjat, Francis Mégraud
BACKGROUND: Helicobacter pylori infection is common in Algeria, but there are few data on the characterization of isolated strains. The aim of this study was to update data on the prevalence of H. pylori in patients submitted to endoscopy, antibiotic resistance, and phylogeography of H. pylori strains isolated in Algiers. MATERIALS AND METHODS: This is a prospective study carried out between November 2015 and August 2016. The culture of H. pylori was performed on antral and fundic gastric biopsies of adult patients from 3 hospitals...
October 16, 2017: Helicobacter
Atsushi Takeoka, Jun Tayama, Masakazu Kobayashi, Ikuko Sagara, Sayaka Ogawa, Tatsuo Saigo, Masaki Hayashida, Hironori Yamasaki, Shin Fukudo, Susumu Shirabe
BACKGROUND: While gastrointestinal function is known to be closely related to psychological status, the influence of Helicobacter pylori-associated atrophic gastritis is currently unknown. We aimed to determine whether atrophic gastritis status or H. pylori infection is associated with psychological distress or depressed mood. MATERIALS AND METHODS: We performed a cross-sectional, observational study involving 975 Japanese individuals (503 females; mean age, 44 ± 8 years) who underwent a health checkup...
October 16, 2017: Helicobacter
Satoru Nakagawa, Tadashi Shimoyama, Masahiko Nakamura, Daisuke Chiba, Hidezumi Kikuchi, Manabu Sawaya, Daisuke Chinda, Tatsuya Mikami, Shinsaku Fukuda
A reddish depressed lesion was found in the corpus of the stomach of a 56-year-old man. Gastric biopsy showed no findings of MALT lymphoma, including lympho-epithelial lesions. A urea breath test, stool antigen test and serum IgG antibody to Helicobacter pylori test were negative. Magnifying endoscopy using narrow-band-imaging showed no malignant structures. Gastric biopsy specimens were subjected to immunohistochemistry and a PCR, which identified Helicobacter suis infection. Triple therapy with esomeprazole, metronidazole, and amoxicillin was administered for 10 days...
October 16, 2017: Internal Medicine
Hideki Mori, Hidekazu Suzuki, Juntaro Matsuzaki, Tatsuhiro Masaoka, Takanori Kanai
BACKGROUND AND AIM: Helicobacter pylori (H. pylori) eradication regimen has not been standardized for patients with penicillin allergy. We investigated the association between the efficacy of a 10-day sitafloxacin, metronidazole, and esomeprazole triple regimen and antibiotic resistance, in patients with penicillin allergy. METHODS: Penicillin-allergic patients infected with H. pylori were enrolled between March 2014 and November 2015. The minimum inhibitory concentrations (MICs) of sitafloxacin and metronidazole, and the gyrA mutation status of the H...
October 2017: United European Gastroenterology Journal
Yeon-Ji Kim, Woo Chul Chung, Byung Wook Kim, Sung Soo Kim, Jin Il Kim, Na Jin Kim, Jinho Yoo, Soo Hwan Kim
Background/Aims: To assess the long-term effect of Helicobacter pylori eradication on symptomatic improvement according to the type of antibiotic and the duration of treatment in H. pylori-associated functional dyspepsia. Methods: We searched Pubmed, Embase, CINAHL, and the Cochrane library databases for randomized controlled trials written in English and undertaken up to August 2016 that met our eligibility criteria. The search methodology used combinations of the following keywords: Helicobacter pylori OR H...
October 30, 2017: Journal of Neurogastroenterology and Motility
Ritsuko Oikawa, Yoshiyuki Watanabe, Shuichi Miyamoto, Yoshinori Sato, Shoko Ono, Katsuhiro Mabe, Hiroyuki Yamamoto, Mototsugu Kato, Fumio Itoh
The eradication of Helicobacter pylori reduces the risk of gastric cancer. A clear understanding of the factors underlying mixed infection with multiple clarithromycin-susceptible and clarithromycin-resistant H. pylori strains is necessary to design more effective therapies against H. pylori. We aimed to assess how the abundance and prevalence of H. pylori strains vary after clarithromycin-based eradication therapy. Using gastric wash samples, which represent the entire stomach, we sequentially analyzed the abundance and prevalence of H...
October 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
Youhua Wang, Rulin Zhao, Ben Wang, Qiaoyun Zhao, Zhen Li, Liya Zhu-Ge, Wenzhu Yin, Yong Xie
BACKGROUND: Sequential and concomitant therapies are two innovative therapies for Helicobacter pylori (H. pylori) eradication. However, the comparative efficacy and safety of these treatments are controversial. Therefore, we aimed to conduct an updated systematic review and meta-analysis of studies that compared these two treatments. METHODS: A search of PubMed, Embase, the Cochrane Library, and Web of Science was carried out. Randomized controlled trials (RCTs) that compared sequential with concomitant therapies were selected for meta-analysis...
October 8, 2017: European Journal of Clinical Pharmacology
Cemile Ucgul Atilgan, Pinar Kosekahya, Ahmet Yozgat, Emine Sen, Nilufer Berker, Mehtap Caglayan, Selam Yekta Sendul, Emin Altiparmak, Pelin Yilmazbas
BACKGROUND: To compare retinal nerve fiber layer thicknesses (RNFLT) of patients with or without Helicobacter pylori infection and to reveal the possible RNFLT changes after H. pylori eradication. MATERIALS AND METHODS: Sixty-five eyes of 65 patients that tested positive for H. pylori (Group 1) and 48 eyes of 48 patients that tested negative for H. pylori (Group 2) were included. RNFLT analyses were performed with spectral-domain (SD) optical coherence tomography (OCT) in a total of five regions: the superior, inferior, nasal, and temporal quadrants and the average...
October 5, 2017: Helicobacter
Yutaka Okagawa, Kohichi Takada, Yohei Arihara, Junji Kato
A 65-year-old man was admitted under emergency to our hospital because of abdominal pain. His current medication history did not include steroids or nonsteroidal antiinflammatory drugs. He had taken an eradication agent for Helicobacter pylori, and his serum was negative for H. pylori IgG antibody. Abdominal computed tomography indicated gastric perforation;therefore, emergency surgery was performed. Two weeks later, esophagogastroduodenoscopy revealed a gastric ulcer on the lesser curvature of the gastric angle and bezoars...
2017: Nihon Shokakibyo Gakkai Zasshi, the Japanese Journal of Gastro-enterology
Mateusz Kowalik, Joanna Masternak, Barbara Barszcz
The application of coordination chemistry in the light of nanotechnology is a rapidly developing research field in medicine. Bismuth complexes have been widely and willingly used in biomedicine with satisfactory therapeutic effects, mostly in Helicobacter pylori eradication, but also as potential anti-microbial and anti-leishmanial agents. Additionally, in recent years, an application of bismuth-based compounds as potent anticancer drugs has also been studied extensively. Therefore, in this review, we want to highlight a number current problems connected with: (1) characterization of bismuth complexes based on thiosemicarbazone, hydrazone, and dithiocarbamate classes of ligands as potential chemotherapeutics, (2) pioneering research on application of bismuth-based nanoparticles and nanodots for radiosensitization, and (3) research challenges in using bismuth radionuclides in targeted radioimmunotherapy...
October 3, 2017: Current Medicinal Chemistry
Evangelos I Kazakos, Nick Dorrell, Stergios A Polyzos, Georgia Deretzi, Jannis Kountouras
Attaran et al([1]) have recently shown that decreased susceptibility of established Helicobacter pylori (H. pylori) biofilms to specific antibiotics, was associated with the overtly enhanced transcription of two efflux pump genes, hp1165 and hefA, involved in specific resistance to tetracycline and multiple antibiotics, respectively. Apart from antibiotic exposure, secretion of multiple antimicrobial peptides, such as human β-defensins (hβDs), by the gastric epithelium upon Hp challenge, may act as early triggering events that positively impact biofilm formation and thus, antibiotic resistance...
September 7, 2017: World Journal of Gastroenterology: WJG
Masaya Iwamuro, Ryuta Takenaka, Masahiro Nakagawa, Yuki Moritou, Shunsuke Saito, Shinichiro Hori, Tomoki Inaba, Yoshinari Kawai, Tatsuya Toyokawa, Takehiro Tanaka, Tadashi Yoshino, Hiroyuki Okada
AIM: To identify the clinical features of gastric mucosa-associated lymphoid tissue (MALT) lymphoma with extra copies of MALT1. METHODS: This is a multi-centered, retrospective study. We reviewed 146 patients with MALT lymphoma in the stomach who underwent fluorescence in situ hybridization analysis for t(11;18) translocation. Patients were subdivided into patients without t(11;18) translocation or extra copies of MALT1 (Group A, n = 88), patients with t(11;18) translocation (Group B, n = 27), and patients with extra copies of MALT1 (Group C, n = 31)...
September 7, 2017: World Journal of Gastroenterology: WJG
Kirti Katherine Kabeer, Nilakanthan Ananthakrishnan, Chetan Anand, Sivaprakash Balasundaram
INTRODUCTION: The association between psychological factors and non-ulcer dyspepsia remains controversial. AIM: To determine the prevalence of Helicobacter pylori (HP) and Stress/Anxiety/Depression (SAD) in patients with Functional Dyspepsia (FD) and assess the outcome at three months after appropriate intervention. MATERIALS AND METHODS: This prospective non-randomized interventional study was conducted on 120 patients with FD. Initial workup included upper gastrointestinal endoscopy to confirm HP infection with either of two tests, the urease test or histopathology...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
Shinji Kitamura, Naoki Muguruma, Koichi Okamoto, Toshihito Tanahashi, Akira Fukuya, Kumiko Tanaka, Daisaku Fujimoto, Tetsuo Kimura, Hiroshi Miyamoto, Yoshimi Bando, Hisashi Takeuchi, Masako Shiba, Tetsuji Takayama
BACKGROUND/AIMS: Gastric xanthomas are frequently observed in the stomach as small yellowish plaques or nodules. A close relationship among Helicobacter pylori infection, atrophic gastritis, and xanthomas has been reported. We assessed the clinicopathological features of gastric cancer with or without xanthomas. METHODS: A total of 91 patients who were diagnosed as having early gastric cancer were enrolled. We evaluated the gastritis status using scores for gastritis and atrophy, positivity of H...
September 30, 2017: Digestion
Mei-Jyh Chen, Ming-Shiang Wu, Chien-Chuan Chen, Chieh-Chang Chen, Yu-Jen Fang, Ming-Jong Bair, Chi-Yang Chang, Ji-Yuh Lee, Wen-Feng Hsu, Jiing-Chyuan Luo, Jaw-Town Lin, Jyh-Ming Liou
Background: The impact of amoxicillin resistance on the efficacy of regimens containing amoxicillin for Helicobacter pylori eradication remains unknown. Objectives: To investigate whether the efficacy of an amoxicillin-containing regimen is affected by amoxicillin resistance and to identify the optimal breakpoint for amoxicillin resistance. Methods: This was a pooled analysis of five randomized trials conducted in Taiwan from 2007 to 2016...
September 18, 2017: Journal of Antimicrobial Chemotherapy
Daniela Munteanu, Ohad Etzion, Gil Ben-Yakov, Daniel Halperin, Leslie Eidelman, Doron Schwartz, Victor Novack, Naim Abufreha, Pavel Krugliak, Alexander Rozenthal, Nava Gaspar, Alexander Moshkalo, Vitaly Dizingof, Alexander Fich
BACKGROUND AND AIMS: Quadruple therapy is recommended as second-line treatment for Helicobacter pylori eradication failure. However, high cost, multiple side effects, and low adherence rates are major drawbacks to its routine use. Our aim was to compare the efficacy and safety of sequential versus quadruple regimens as second line treatment for persistent Helicobacter pylori infection. METHODS: Prospective, randomized, open label trial was conducted at a large academic, tertiary care center in Israel...
2017: PloS One
Joo Hyun Lim, Sang Gyun Kim, Ji Min Choi, Hyo-Joon Yang, Joo Sung Kim, Hyun Chae Jung
Background/Aims: To investigate whether Helicobacter pylori eradication can reverse epigenetic silencing of microRNAs (miRNAs) which are associated with H. pylori-induced gastric carcinogenesis. Methods: We examined expression and promoter methylation of miR-34b/c, miR-133a, let-7a, and let-7i in gastric cancer cell line, before/after demethylation. Among them, epigenetically controlled miRNAs were identified. Their expression and promoter methylation was examined in human tissues of H...
September 28, 2017: Gut and Liver
Suman Som, Gourab Dutta Banik, Abhijit Maity, Sujit Chaudhuri, Manik Pradhan
Nitric oxide (NO) plays a key role in the development of peptic ulcer disease (PUD). Conversely, the gastric pathogen Helicobacter pylori colonizes the human stomach and contributes to the development of non-ulcer dyspepsia (NUD) and PUD. But, the underlying relation between molecular NO in exhaled breath and H. pylori associated NUD and PUD largely remains unknown. Here, we explored that the excretion kinetics of NO profiles in exhaled breath are markedly altered for H. pylori infected NUD and PUD subjects...
September 26, 2017: Journal of Breath Research
Seung Young Kim, Sang Woo Lee, Jung Wan Choe, Sung Woo Jung, Jong Jin Hyun, Young Kul Jung, Ja Seol Koo, Hyung Joon Yim
BACKGROUND: The efficacy of the standard triple therapy for Helicobacter pylori eradication has decreased to an unacceptable level. We aimed to compare the efficacy of sequential and concomitant therapies as for the first-line treatments for H. pylori eradication and analyzed the effect of clarithromycin resistance on the eradication rates. MATERIALS AND METHODS: Four hundred and seventy-eight patients with H. pylori infection were randomly assigned to either concomitant therapy (amoxicillin 1000 mg with clarithromycin 500 mg, metronidazole 500 mg, and pantoprazole 40 mg twice daily for 10 days) or sequential therapy (amoxicillin 1000 mg with pantoprazole 40 mg twice daily for 5 days, followed by clarithromycin 500 mg with metronidazole 500 mg and pantoprazole 40 mg twice daily for 5 days)...
September 21, 2017: Helicobacter
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