Systematic review of the relationship of Helicobacter pylori infection with geographical latitude, average annual temperature and average daily sunshine

Lü, Chao; Yu, Yanan; Li, Lan; Xu, Ping

doi:10.1186/s12876-018-0779-x

Cited by 21 publications

(18 citation statements)

References 30 publications

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“…Helicobacter pylori infection is apparent in resource limited countries than in economically developed countries and the distribution varies between different communities and geographical locations [5]. About 50% of the population is infected with H. pylori in affluent countries, whereas this percentage rises to 80% in developing countries [1], and the prevalence in Ethiopia is in the range of 48–95% [6].…”

Section: Introductionmentioning

confidence: 99%

Magnitude of Helicobacter pylori and associated risk factors among symptomatic patients attending at Jasmin internal medicine and pediatrics specialized private clinic in Addis Ababa city, Ethiopia

Shiferaw

Abera

2019

BMC Infect Dis

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BackgroundMore than 50% of the people are infected worldwide with H. pylori which causes significant public health morbidity and mortality. The distribution is quite different from country to country. Hence, early information is very important to prevent upper gastrointestinal complications. The current study aimed to assess the magnitude of H. pylori and associated risk factors among symptomatic patients attending at Jasmin internal medicine and pediatrics specialized private clinic from August 2017 until May 2018 in Addis Ababa city, Ethiopia.MethodsA cross-sectional study was conducted among 487 patients with upper gastrointestinal tract complaints attending at Jasmin internal medicine and pediatrics specialized private clinic from August 2017 until May 2018. Convenient sampling technique was used to enroll participants. Information regarding to risk factors was assessed using structured questionnaire. Stool samples were collected for H. pylori antigen test. Data was entered and analyzed using SPSS version20 statistical software and a p-value less than 0.05 was considered as statistically significant.ResultsThe overall prevalence of H. pylori among participants using stool antigen was 36.8% (n = 179/487). Regarding to family income status, those who have low monthly income were more likely to be infected with H. pylori infection (AOR = 6.056, CI 95% = 1.603–22.881, P = 0.037). In addition, families with low educational level were more likely to be infected with H. pylori infection than higher level education (AOR = 4.150, CI95% = 1.059–16.270, P = 0.041). Number of family members in the house-hold, type of toilet they used and source of drinking water were not significantly associated with H. pylori infection.ConclusionsThe prevalence of H. pylori infection was 36.8% and it was related to low income and low education levels. This finding calls for improving the socioeconomic status of the community. Moreover, further studies are needed to investigate potential risk factors for H. pylori infection.

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Section: Introductionmentioning

confidence: 99%

Magnitude of Helicobacter pylori and associated risk factors among symptomatic patients attending at Jasmin internal medicine and pediatrics specialized private clinic in Addis Ababa city, Ethiopia

Shiferaw

Abera

2019

BMC Infect Dis

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“…However, a lack of information regarding this association in Asian populations has been previously identified (3) and our results add to the literature in this area. Furthermore, even within the continent, H. pylori prevalence is shown to differ widely by geography (40), as does genotypic variation (41), and our results at least suggest no correlation between H. pylori infection and ATD in our study cohort. Although NTIS is a disturbance in thyroid function, the causative agent is the underlying chronic inflammation secondary to another illness (21).…”

Section: Discussionmentioning

confidence: 42%

Higher Prevalence of Non-thyroidal-Illness Syndrome in Elderly Male Patients With Active Helicobacter pylori Infection

et al. 2021

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Objective: It is currently unclear whether the Helicobacter pylori (H. pylori) infection leads to associated alterations in thyroid functions and thyroidal illnesses. This study aims to analyse this relationship in an elderly male cohort over a five-year period.Design: A case retrospective study.Methods: A longitudinal study was designed to collect subjects (≥65 years old) receiving both a thyroid examination and H. pylori infection status determined by 13C-urea breath test in 2013 at our unit. Subjects were followed every 1 to 2 years until December 2017 for laboratory results, visits to outpatient clinics/emergency departments etc. Blood tests and thyroid ultrasonography were performed to determine thyroid function and morphology.Results: 356 male subjects with mean age 78.5 ± 9.8 years were included. Active H. pylori infection was positive in 88 subjects (24.7%). Thyroid function tests and ultrasonography showed similar patterns between H. pylori positive and negative groups. Non-thyroidal-illness syndrome (NTIS) was diagnosed in 30/210 (14%) patients who experienced acute illnesses and hospitalization over five-year follow-up. Notably, NTIS demonstrated significantly higher prevalence in the H. pylori positive group compared to the negative group (17.1 vs. 5.6%, P = 0.001). Multivariate analysis showed that when age, APACHE II score and hemoglobin levels were adjusted, H. pylori status still has significant interrelationship with NTIS (OR = 3.497, P = 0.003).Conclusions: There is a positive association between chronic active H. pylori infection and NTIS prevalence in this elderly male cohort. Further studies are needed to elucidate the role of H. pylori infection on NTIS in elderly male patients.

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“…We found 41.22 years of mean age of patients and infection rate was higher among males 118(60.2%). Similarly Lu et al [27] found infection rate of H. pylori was 1.1 times greater among males than the females. Zhu et al [28] reported a mean age of 50.15 years for h-pylori infected cases with a greater rate of infection among females as compared to males.…”

Section: Discussionmentioning

confidence: 84%

Association of dupA, iceA, homB Genes of Helicobacter pylori with Gastritis, Peptic Ulcer Disease and Gastric Cancer

Bajwa

Idrees²,

Maheshwari

2020

JPRI

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Objective: To determine the association of dupA, iceA, homB genes of Helicobacter pylori with gastro-duodenal diseases such as gastritis, peptic ulcer disease PUD and gastric cancer. Materials and Methods: This cross-sectional analytical study was conducted at Gastroenterology Department, Shaikh Zayed Hospital Lahore. Patients with gastro-duodenal diseases and positive H. pylori were included. Gastric biopsies were taken from fundus, body and antrum. H. pylori DNA were removed utilizing Gentra DNA extraction Kit (Life Technologies, USA) as per the technique and Qualitative PCR for the recognition of H. Pylori DNA. The PCR primers sets were designed for the specific detection of dupA, iceA and homB genes of H. pylori. All the data was recorded in proforma and analyzed by SPSS version 20. Results: Mean age of the cases was 41.22+8.04 years. Males were more affected 118(60.2%). HomB was the most common 76(38.8%) followed by dupA and iceA 28.6% and 24.5% respectively. Peptic ulcer disease and gastritis were higher among patients having dup A and iceA positive strains as compared to homB gene patients, while gastric cancer was significantly higher among HomB gene infected patients, p-values were quite significant. Conclusion: It was concluded that homB gene was most frequent in H. pylori infected population. Peptic ulcer disease and gastritis are markedly associated with dupA and iceA genes, while homB gene infected patients are at high risk of gastric cancer.

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Systematic review of the relationship of Helicobacter pylori infection with geographical latitude, average annual temperature and average daily sunshine

Cited by 21 publications

References 30 publications

Magnitude of Helicobacter pylori and associated risk factors among symptomatic patients attending at Jasmin internal medicine and pediatrics specialized private clinic in Addis Ababa city, Ethiopia

Magnitude of Helicobacter pylori and associated risk factors among symptomatic patients attending at Jasmin internal medicine and pediatrics specialized private clinic in Addis Ababa city, Ethiopia

Higher Prevalence of Non-thyroidal-Illness Syndrome in Elderly Male Patients With Active Helicobacter pylori Infection

Association of dupA, iceA, homB Genes of Helicobacter pylori with Gastritis, Peptic Ulcer Disease and Gastric Cancer

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