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https://www.readbyqxmd.com/read/28325194/multimodality-treatment-of-gastric-lymphoma
#1
REVIEW
Naruhiko Ikoma, Brian D Badgwell, Paul F Mansfield
Gastric lymphoma is rare, accounting for 3% of gastric neoplasms and 10% of lymphomas. Treatment should be stratified based on histologic type, stage, Helicobacter pylori infection, and t(11;18) translocation status. Surgery is no longer a mainstay for treatment and should be reserved for rare situations such as perforation, fistula formation, and severe bleeding. Multimodal treatment, including H pylori eradication, radiation therapy, chemotherapy, and immunotherapy, should be provided as appropriate and can result in excellent outcomes...
April 2017: Surgical Clinics of North America
https://www.readbyqxmd.com/read/28322295/alterations-in-gastric-microbiota-after-h-pylori-eradication-and-in-different-histological-stages-of-gastric-carcinogenesis
#2
Tung Hiu Li, Youwen Qin, Pak Chung Sham, K S Lau, Kent-Man Chu, Wai K Leung
The role of bacteria other than Helicobacter pylori (HP) in the stomach remains elusive. We characterized the gastric microbiota in individuals with different histological stages of gastric carcinogenesis and after receiving HP eradication therapy. Endoscopic gastric biopsies were obtained from subjects with HP gastritis, gastric intestinal metaplasia (IM), gastric cancer (GC) and HP negative controls. Gastric microbiota was characterized by Illumina MiSeq platform targeting the 16 S rDNA. Apart from dominant H...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28321977/the-relationship-between-hp-infection-and-vomiting-induced-by-gastrointestinal-cancer-chemotherapy
#3
Yiwei Yao, Chushu Ji, Yifu He, Yueyin Pan
BACKGROUND: Nausea and vomiting are the most common adverse reactions to chemotherapy. AIM: To discuss the relationship between Helicobacter pylori (HP) and chemotherapy-induced nausea and vomiting (CINV). METHODS: One hundred twelve patients with malignant tumours of the gastrointestinal tract were selected. Based on the 14C-urea breath test results, the patients were divided into HP-positive (n = 59) and HP-negative (n = 53) groups...
March 21, 2017: Internal Medicine Journal
https://www.readbyqxmd.com/read/28321304/gastric-heterotopia-in-rectum-a-literature-review-and-its-diagnostic-pitfall
#4
Peyman Dinarvand, Ashley A Vareedayah, Nancy J Phillips, Christine Hachem, Jinping Lai
OBJECTIVES: The term heterotopia, in pathology, refers to the presence of normal tissues at foreign sites. Gastric heterotopia has been reported anywhere in the gastrointestinal tract. However, the presence of gastric heterotopia in the rectum is very rare. METHODS: We, here, report a rare case of a localized 2-cm area of cratered mucosa with heaped-up borders in the rectum of a 51-year-old, asymptomatic woman who underwent screening colonoscopy. RESULTS: Histologic examination of the biopsy from the lesional tissue in rectum demonstrated fragments of rectal mucosa co-mingling with oxyntic- and antral-type gastric mucosa...
2017: SAGE open medical case reports
https://www.readbyqxmd.com/read/28321089/improvement-in-platelet-count-after-3rd-line-and-4th-line-eradication-therapy-for-helicobacter-pylori-in-patients-with-immune-thrombocytopenia
#5
Wataru Jomen, Takashi Sato, Chihaya Maesawa
Case 1: A 78-year-old woman was diagnosed with H. pylori positive gastritis at a previous hospital in April 2012 and received 3rd-line H. pylori eradication therapy, which ended in failure. She was referred to our department due to oral hemorrhage, petechiae involving all four extremities, and thrombocytopenia in January 2016. She was hospitalized with a diagnosis of ITP and received inpatient treatment. While receiving outpatient prednisolone (PSL) treatment, we administered 4th-line eradication therapy in March...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28320722/in-vitro-and-in-vivo-antibacterial-activities-of-patchouli-alcohol-a-natural-occurring-tricyclic-sesquiterpene-against-helicobacter-pylori-infection
#6
Y F Xu, D W Lian, Y Q Chen, Y F Cai, Y F Zheng, P L Fan, W K Ren, L J Fu, Y C Li, J H Xie, H Y Cao, B Tan, Z R Su, P Huang
This study further evaluated the in vitro and in vivo anti-Helicobacter pylori activity and potential underlying mechanism of patchouli alcohol (PA), a tricyclic sesquiterpene. In in vitro assay, the capacities of PA to inhibit and kill H. pylori were tested on three standard strains at different pH values and 12 clinical isolates. The effects of PA on H. pylori adhesion (and its alpA, alpB and babA genes), motility (and its flaA and flaB genes), ultrastructure and flagellation were investigated. Moreover, the H...
March 20, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28316150/-the-principle-and-strategy-for-the-treatment-of-refractory-helicobacter-pylori-infection
#7
(no author information available yet)
No abstract text is available yet for this article.
March 14, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28303625/eradication-rate-of-helicobacter-pylori-infection-is-directly-influenced-by-adherence-to-therapy-in-children
#8
Kallirroi Kotilea, Joyce Mekhael, Assaad Salame, Tania Mahler, Veronique Yvette Miendje-Deyi, Samy Cadranel, Patrick Bontems
BACKGROUND: Current commonly accepted strategies to eradicate Helicobacter pylori in children are a 10-day sequential treatment or a triple therapy for 7-14 days. To avoid further expensive and possibly risky investigations as well as induction of secondary antimicrobial resistance, a success rate of elimination strategies over 90% in a per-protocol analysis is the target goal but rates observed in clinical trials are lower. Antimicrobial resistance is a well-recognized risk factor for treatment failure; therefore, only a treatment tailored to susceptibility testing should be recommended...
March 17, 2017: Helicobacter
https://www.readbyqxmd.com/read/28302498/early-apoptosis-of-monocytes-induced-by-helicobacter-pylori-infection-through-multiple-pathways
#9
Ying Zhang, Hui Sun, Huilin Zhao, Xingxing Chen, Jiaojiao Li, Boqing Li
Only a small percentage of people infected with Helicobacter pylori (H. pylori) will develop overt chronic gastric diseases. To understand the pathological mechanism, the action of H. pylori on monocyte apoptosis was detected. H. pylori co-culturing with peripheral blood monocytes, THP-1 or U937 cells result in early apoptosis at 6, 12, and 24 h after infection. The phosphorylated Bad and JNK were increased, and Bcl-2 was declined at 6, 12, and 24 h in peripheral blood monocytes after H. pylori infection...
March 14, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28294543/probiotics-as-an-adjuvant-treatment-in-helicobacter-pylori-eradication-therapy
#10
REVIEW
Xinyan Zhu, Fei Liu
Over 80% population with Helicobacter pylori (H. pylori) infection is asymptomatic. H. pylori was considered as a primary reason for various natural gastric physiopathology. Increased antibiotic resistance and less medication compliance lead to the failure of antibiotic eradication therapy. Probiotics have been applied as a supplementary treatment in H. pylori eradication therapy in recent years. They have direct and indirect inhibitory effects on H. pylori in both animal models and clinical trials. Because of the improvement in eradication rates and therapy-related side effects, probiotics have been considered as the useful supplementation to current eradication therapy although the treatment outcomes were controversial due to the heterogeneity of probiotics in species, strains, doses and therapeutic duration...
March 10, 2017: Journal of Digestive Diseases
https://www.readbyqxmd.com/read/28294071/safety-of-one-week-first-line-standard-triple-therapy-for-helicobacter-pylori-eradication-in-a-japanese-population
#11
Kazutoshi Hori, Tetsuya Takagawa, Nobuyuki Hida, Shiro Nakamura
BACKGROUND: Standard triple therapy with the proton pump inhibitors, clarithromycin and amoxicillin for Helicobacter pylori infection is considered to be safe; however, the development of significant adverse events (AEs), such as skin rashes, has been reported. OBJECTIVE: To reconfirm the safety of this treatment. METHODS: This was a retrospective cohort study. After the exclusion of patients allergic to penicillin, 322 consecutive patients, consisting of 305 outpatients and 17 inpatients, had received the first-line eradication treatment with lansoprazole (30 mg), clarithromycin (200 mg), and amoxicillin (750 mg) twice daily for 7 days...
March 9, 2017: Current Drug Safety
https://www.readbyqxmd.com/read/28293545/helicobacter-pylori-secreted-protein-hp1286-triggers-apoptosis-in-macrophages-via-tnf-independent-and-erk-mapk-dependent-pathways
#12
Raquel Tavares, Sushil Kumar Pathak
Macrophages constitute a powerful line of defense against H. pylori. The final disease outcome is highly dependent on the bacterial ability to modulate the effector functions of activated macrophages. Here, we report that H. pylori secreted protein HP1286 is a novel regulator of macrophage responses. Differential expression and release of HP1286 homologues were observed among H. pylori strains. Recombinant purified HP1286 (rHP1286) had the ability to bind to primary human monocyte-derived macrophages (MDM) and macrophage cell lines...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28291549/erratum-to-iv-spanish-consensus-conference-on-helicobacter-pylori-infection-treatment-gastroenterol-hepatol-39-2016-697-721
#13
Javier P Gisbert, Javier Molina-Infante, Javier Amador, Fernando Bermejo, Luis Bujanda, Xavier Calvet, Manuel Castro-Fernández, Antonio Cuadrado-Lavín, J Ignasi Elizalde, Emili Gene, Fernando Gomollón, Ángel Lanas, Carlos Martín de Argila, Fermín Mearin, Miguel Montoro, Ángeles Pérez-Aisa, Emilio Pérez-Trallero, Adrián G McNicholl
No abstract text is available yet for this article.
March 10, 2017: Gastroenterología y Hepatología
https://www.readbyqxmd.com/read/28289662/mucosa-associated-lymphoid-tissue-lymphoma-of-the-cecum-and-rectum-a-case-report
#14
Myung Jin Nam, Byung Chang Kim, Sung Chan Park, Chang Won Hong, Kyung Su Han, Dae Kyung Sohn, Weon Seo Park, Hee Jin Chang, Jae Hwan Oh
A colonic mucosa-associated lymphoid-tissue (MALT) lymphoma is relatively rare compared to lymphomas of the stomach or small intestine. We present a case of a MALT lymphoma in the cecum and rectum found during screening colonoscopy. A 54-year-old female, who had undergone right-breast-conserving surgery with axillary dissection due to an invasive ductal carcinoma and a left-breast excisional biopsy due to microcalcification following adjuvant chemoradiation therapy 3 years earlier, was found to have 3-mm-sized smooth elevated lesions in both the cecum and rectum...
February 2017: Annals of Coloproctology
https://www.readbyqxmd.com/read/28288721/epidemiology-and-environmental-aspects-of-marginal-zone-lymphomas
#15
REVIEW
Priya Sriskandarajah, Claire E Dearden
Marginal zone lymphomas (MZLs) account for between 5% and 17% of all non-Hodgkin's lymphomas. MZLs consist of 3 different subtypes with extranodal being the most commonly reported, representing 50-70% of MZL, followed by splenic (20%) and nodal (10%). Median age at presentation varies between these lymphoma sub-types, ranging between 50 and 69 years, with an overall greater incidence noted in males compared to females. Given the rarity of these lymphomas, epidemiologic data has been sparse, although it has been suggested the aetiology is multi-factorial including ethnicity and geographical factors...
March 2017: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/28288705/clinical-aspects-and-therapy-of-gastrointestinal-malt-lymphoma
#16
REVIEW
Catherine Thieblemont, Emanuele Zucca
Extranodal marginal zone B-cell lymphomas of the mucosa associated lymphoid tissue (MALT) arise from lymphoid populations that are induced by chronic inflammation in extranodal sites. Among the MALT lymphomas, gastrointestinal (GIT) MALT lymphoma is the most frequent compared to non-GIT MALT lymphoma arising from other sites. Gastric MALT lymphoma has been the first to be described with the evidence of an etiopathogenetic link provided by the association between Helicobacter pylori-positive gastritis and gastric MALT lymphoma...
March 2017: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/28283804/enhancement-of-adherence-of-helicobacter-pylori-to-host-cells-by-virus-possible-mechanism-of-development-of-symptoms-of-gastric-disease
#17
Hong Wu, Takashi Nakano, Youichi Suzuki, Yukimasa Ooi, Kouichi Sano
It remains unclear why gastric disease does not develop in all cases of Helicobacter pylori infection. In this study, we analyzed whether simian virus 5 (SV5) enhanced adherence of H. pylori to adenocarcinoma epithelial cells (AGS). H. pylori in AGS (harboring SV5) and SV5-infected Vero cells, and an agglutination of H. pylori mixed with SV5 were observed by light microscopy, scanning and transmission electron microscopies. The adherent rate of H. pylori to SV5-infected Vero cells and treated with an anti-SV5 antibody was determined...
March 10, 2017: Medical Molecular Morphology
https://www.readbyqxmd.com/read/28275687/hedgehog-signaling-links-chronic-inflammation-to-gastric-cancer-precursor-lesions
#18
REVIEW
Juanita L Merchant, Lin Ding
Since its initial discovery in Drosophila, Hedgehog (HH) signaling has long been associated with foregut development. The mammalian genome expresses 3 HH ligands, with sonic hedgehog (SHH) levels highest in the mucosa of the embryonic foregut. More recently, interest in the pathway has shifted to improving our understanding of its role in gastrointestinal cancers. The use of reporter mice proved instrumental in our ability to probe the expression pattern of SHH ligand and the cell types responding to canonical HH signaling during homeostasis, inflammation, and neoplastic transformation...
March 2017: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28275685/the-clinical-evidence-linking-helicobacter-pylori-to-gastric-cancer
#19
REVIEW
Steven F Moss
Gastric cancer has long been recognized to be accompanied and preceded by chronic gastritis, lasting decades. Arguably, the most important development in our understanding of gastric cancer pathogenesis over the past 50 years has been the realization that, for most cases of gastric cancer, Helicobacter pylori is the cause of the underlying gastritis. Gastritis can promote gastric carcinogenesis, typically via the Correa cascade of atrophic gastritis, intestinal metaplasia, and dysplasia. Nested case-control studies have shown that H pylori infection increases the risk of gastric cancer significantly, both of the intestinal and diffuse subtypes, and that H pylori is responsible for approximately 90% of the world's burden of noncardia gastric cancer...
March 2017: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28272373/%C3%AE-defensins-in-the-fight-against-helicobacter-pylori
#20
REVIEW
Raffaela Pero, Lorena Coretti, Ersilia Nigro, Francesca Lembo, Sonia Laneri, Barbara Lombardo, Aurora Daniele, Olga Scudiero
Antimicrobial peptides (AMPs) play a pivotal role in the innate immune responses to Helicobacter pylori (Hp) in humans. β-Defensins, a class of cationic arginine-rich AMPs, are small peptides secreted by immune cells and epithelial cells that exert antimicrobial activity against a broad spectrum of microorganisms, including Gram-positive and Gram-negative bacteria and fungi. During Hp infections, AMP expression is able to eradicate the bacteria, thereby preventing Hp infections in gastrointestinal tract. It is likely that gastric β-defensins expression is increased during Hp infection...
March 7, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
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