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1.
Therap Adv Gastroenterol ; 16: 17562848231160620, 2023.
Article in English | MEDLINE | ID: mdl-37324320

ABSTRACT

Background: Helicobacter pylori (H. pylori) is a group 1 carcinogen and the etiological agent of gastric diseases such as gastritis, ulcers, and gastric cancer. It infects approximately half of the world's population. Risk factors associated with H. pylori infection include socioeconomic status, lifestyle, and diet. Objectives: This study aimed to evaluate the association between eating habits and H. pylori infection in patients from a reference hospital in Central Brazil. Design: This cross-sectional study included 156 patients from 2019 to 2022. Methods: Data were collected using a structured questionnaire on sociodemographic and lifestyle characteristics and a validated food frequency questionnaire. The H. pylori infection status (positive versus negative) was determined using the histopathological method. After grams/day, foods were stratified into tertiles of consumption (low, medium, and high). Simple and multiple binary logistic regression models were used in the analysis of odds ratios (ORs) and their respective 95% confidence intervals (CIs), with a 5% significance level. Results: The prevalence of H. pylori infection was 44.2% (69/156 patients). Infected individuals had a mean age of 49.6 ± 14.6 years; 40.6% were men, 34.8% were aged 60 years or older, 42.0% were unmarried, 7.2% had higher education, 72.5% were non-white, and 30.4% were obese. In the H. pylori-positive group, 55.1% were alcohol drinkers and 42.0% were smokers. The results of multiple analyses showed that the chance of H. pylori infection was higher among male participants (OR = 2.25; CI = 1.09-4.68) and individuals with obesity (OR = 2.68; CI = 1.10-6.51). Participants with moderate consumption of refined grains (bread, cookies, cakes, breakfast cereal) (OR = 2.41; CI = 1.04-5.62) and fruits (OR = 2.53; CI = 1.08-5.94) were more likely to be infected. Conclusion: In this study, male sex, obesity, and the consumption of refined grains and fruits were positively associated with H. pylori infection. Further research is needed to investigate this association and elucidate the underlying mechanisms.

2.
Clin. biomed. res ; 43(2): 170-179, 2023. tab, ilus
Article in Portuguese | LILACS | ID: biblio-1517940

ABSTRACT

Helicobacter pylori é uma bactéria Gram-negativa que acomete cerca de 50% da população mundial. A infecção causada por H. pyloriestá associada com algumas enfermidades gástricas. Entretanto, estudos mais recentes têm demonstrado a etiologia do microrganismo em doenças extra gástricas, como doenças metabólicas. O trabalho teve como objetivo realizar uma pesquisa na literatura de artigos que avaliaram a associação da infecção por H. pyloricom doenças metabólicas, com foco em diabetes. Foram utilizadas as seguintes bases de dados, PubMed, Medline, LILACS e SciELO. Termos combinados juntamente com o operador booleano "AND" em português e em inglês foram empregados. O resultado do levantamento bibliográfico totalizou 31 artigos. A infecção por H. pyloripossivelmente está relacionada com a síndrome metabólica. A relação pode ser decorrente da inflamação crônica, redução dos movimentos gastrointestinais, falta de secreção de ácido gástrico e interferência na produção ou secreção de alguns hormônios. Apesar dos estudos demonstrarem que entre os indivíduos infectados por H.pyloria prevalência da síndrome metabólica é maior e que a erradicação do microrganismo favorece a melhora dos índices glicêmicos, mais pesquisas são requeridas. A compreensão da etiologia da infecção porH. pyloriem doenças metabólicas, pode auxiliar em políticas públicas de erradicação da bactéria.


Helicobacter pylori is a Gram-negative bacterium that affects about 50% of the world's population. Infection caused by H. pylori is associated with some gastric diseases. However, more recent studies have demonstrated the etiology of the microorganism in extra gastric diseases, such as metabolic diseases. The objective of this study was to carry out a literature search for articles that evaluated the association ofH. pyloriinfection with metabolic diseases, focusing on diabetes. The following databases were used, PubMed, Medline, LILACS and SciELO. Combined terms together with the Boolean operator "AND" in Portuguese and English were used. The result of the bibliographic survey totaled 31 articles.H. pyloriinfection is possibly related to the metabolic syndrome. The relationship may be due to chronic inflammation, reduced gastrointestinal movements, lack of gastric acid secretion and interference in the production or secretion of some hormones. Despite studies demonstrating that infected individuals had a higher prevalence of metabolic syndrome and that the eradication of the microorganism favors the improvement of glycemic indexes, more research is required. Understanding the etiology of H. pyloriinfection in metabolic diseases can help in public policies to eradicate the bacterium.


Subject(s)
Humans , Helicobacter pylori , Helicobacter pylori/pathogenicity , Metabolic Syndrome/physiopathology , Diabetes Mellitus/physiopathology , Helicobacter Infections/complications , Helicobacter Infections/epidemiology , Metabolic Syndrome/complications , Inflammation
3.
Clin. biomed. res ; 43(2): 201-208, 2023. tab, ilus
Article in Portuguese | LILACS | ID: biblio-1517947

ABSTRACT

Helicobacter pylori é uma bactéria gram-negativa que coloniza a mucosa gástrica de mais da metade da população mundial. A erradicação dessa bactéria é realizada com terapia tripla de primeira linha para reduzir o aparecimento de doenças gástricas relacionadas à infecção. H. pylori foi considerada pela Organização Mundial da Saúde uma das principais bactérias que necessitam de novas estratégias para o desenvolvimento de fármacos. O objetivo desse estudo foi descrever o padrão de resistência da H. pylori frente aos antibióticos utilizados em diferentes esquemas terapêuticos. Trata-se de uma revisão integrativa, cujo levantamento dos artigos foi efetuado nas bases de dados PubMed, LILACS, Science Direct e SciELO. Os critérios de inclusão foram estudos publicados em português e inglês, indexados nos últimos dez anos, com acesso livre na íntegra e que abordassem a temática. Os resultados demonstraram médias nas taxas de resistência ao metronidazol de 47,6%, levofloxacina de 24,7% e claritromicina de 24,6%. Para tetraciclina e amoxicilina as médias foram 1,5% e 0,9% respectivamente. Esses resultados demonstram padrões variáveis de resistência e reforça a necessidade do desenvolvimento de novos fármacos. Conclui-se que o uso abusivo de antibióticos tem levado ao aumento da resistência da H. pylori aos antibióticos usados na erradicação.


Helicobacter pylori is a gram-negative bacterium that colonizes the gastric mucosa of more than half of the world's population. Eradication is performed with first-line triple therapy to reduce the onset of infection-related gastric disease. H. pylori was considered by the World Health Organization as one of the main bacteria that need new strategies for drug development. The aim of this study was to describe the pattern of resistance of H. pylori to antibiotics used in different therapeutic regimens. This is an integrative review, whose articles were surveyed in the PubMed, LILACS, Science Direct and SciELO databases. The inclusion criteria were studies published in Portuguese and English, indexed in the last ten years, with free access in full and that addressed the theme. The results showed mean resistance rates to metronidazole of 47.6%, levofloxacin of 24.7% and clarithromycin of 24.6%. For tetracycline and amoxicillin the means were 1.5% and 0.9% respectively. These results demonstrate varying patterns of resistance and reinforce the need to develop new drugs. It is concluded that the abusive use of antibiotics has led to increased resistance of H. pylori to the antibiotics used in its eradication.


Subject(s)
Helicobacter pylori/drug effects , Helicobacter Infections/drug therapy , Anti-Bacterial Agents/therapeutic use , Anti-Bacterial Agents/pharmacology , Helicobacter pylori/physiology , Treatment Outcome
4.
Clin. biomed. res ; 42(2): 176-185, 2022.
Article in Portuguese | LILACS | ID: biblio-1391647

ABSTRACT

Helicobacter pylori, uma bactéria gram-negativa, desde 1984 vem sendo associada às doenças gástricas. A partir da década de 1990, surgiram crescentes relatos indicando a relação da infecção com manifestações extragástricas. Nesse sentido, o objetivo do estudo foi investigar, através de uma revisão integrativa, as evidências relacionadas à H. pylori e a presença de doenças hematológicas, focando na anemia por deficiência de ferro (ADF) e na púrpura trombocitopênica idiopática (PTI). Bases de dados foram consultadas com as palavras-chave e descritores Helicobacter pylori, Doenças extragástricas, Doenças hematológicas, Anemia ferropriva e Púrpura Trombocitopênica Idiopática, nos idiomas inglês, português e espanhol, combinados com o operador booleano "AND". Após a leitura de 1.964 títulos, 85 artigos atendiam aos critérios de inclusão. Com a exclusão dos artigos duplicados e pela análise dos resumos, 62 trabalhos foram selecionados e lidos na íntegra. Por fim, 27 estudos foram incluídos: 13 relacionados à ADF e 77% deles encontraram associação com H. pylori, e 14 relacionados à PTI, nos quais a relação com a bactéria foi encontrada em 93%. As evidências que associam essas doenças hematológicas com H. pylori são expressivas, portanto, mais estudos são necessários para elucidar os mecanismos relacionados e contribuir para prevenção, diagnóstico e tratamento mais eficazes.


Helicobacter pylori is a gram-negative bacterium that has been associated with gastric diseases since 1984. Since the 1990s, there have been increasing reports indicating that the infection may also be associated with extragastric manifestations. This integrative review aimed to investigate the evidence on the relationship between H. pylori and hematological diseases, specifically iron deficiency anemia (IDA) and idiopathic thrombocytopenic purpura (ITP). Databases were searched for the keywords "Helicobacter pylori," "extragastric diseases," "hematologic diseases," "iron deficiency anemia," and "idiopathic thrombocytopenic purpura" in English, Portuguese, and Spanish, combined with the boolean operator "AND." The search yielded 1,964 studies. After reading the titles, only 85 met the inclusion criteria. Sixty-two studies were selected for full-text reading after exclusion of duplicates and abstract analysis. Finally, 27 studies were included in this review. Thirteen studies addressed IDA, among which 77% found an association with H. pylori; whereas 14 studies addressed ITP, among which 93% found a relationship with H. pylori. There is strong evidence supporting the association between hematologic diseases and H. pylori. Further studies are needed to elucidate the mechanisms involved in this relationship, contributing to more effective prevention, diagnosis, and treatment.


Subject(s)
Humans , Helicobacter pylori , Helicobacter Infections/complications , Purpura, Thrombocytopenic, Idiopathic/virology , Anemia, Iron-Deficiency/virology
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