Effect Of Helicobacter Pylori Infection Research Articles

Clinical analysis of the effect of helicobacter pylori infection on immune function in children with peptic ulcer.

To study whether children with peptic ulcer would have abnormalities in cellular and humoral immune functions, and whether Helicobacter pylori (Hp) infection would affect the immune function of children with peptic ulcer. This is a retrospective study. The subjects of study were 72 children with diagnosed and cured peptic ulcer (ulcer group), and 50 healthy children with physical examination (control group) at Baoding Hospital, Beijing Children's Hospital Affiliated to Capital Medical University from June 2020 to December 2022. Further detection was conducted on T lymphocyte subsets (CD3+, CD4+, CD8+, and CD4+/CD8+ ratio) and immunoglobulin levels. Of the 72 children with peptic ulcer, 53(73.6%) were positive for Hp (Hp-positive group) and 19 (26.4%) were negative (Hp-negative group). The levels of CD3+, CD4+, and CD4+/CD8+ ratio in the control group were significantly higher than those in the ulcer group, with statistically significant difference (P<0.05); while the level of IgG in the control group was lower than that in the ulcer group, with statistically significant difference (P<0.05). Meanwhile, there were statistically significant differences in that the levels of CD3+, CD4+ and CD8+ were increased in Hp-positive group than those in Hp-negative group before treatment (P<0.05); while CD4+/CD8+ ratio was lower in the former group than that in the latter group, with statistically significant difference (P<0.05). Hp infection can induce the elevation of T lymphocyte subsets. The development of peptic ulcer has an intimate association with the disorder of cellular and humoral immune functions.

Efficacy of Magnifying Endoscopy with Narrow-Band Imaging in the Diagnosis of Early Gastric Cancer and Gastric Intraepithelial Neoplasia.

Early diagnosis of gastric cancer can improve the prognosis of patients, especially for those with early gastric cancer (EGC), but only 15% of patients, or less, are diagnosed with EGC and precancerous lesions. Magnifying endoscopy with narrow-band imaging (ME-NBI) can improve diagnostic accuracy. We assess the efficacy of ME-NBI in diagnosing ECG and precancerous lesions, especially some characteristics under NBI+ME. This was a retrospective analysis of 131 patients with EGC or gastric intraepithelial neoplasia (IN) who had undergone endoscopic submucosal dissection and were pathologically diagnosed with EGC or IN according to 2019 WHO criteria for gastrointestinal tract tumors. We studied the characteristics of lesions under ME-NBI ,compared the diagnostic efficacy of ME-NBI and white light endoscopy (WLI) plus biopsy, and investigated the effect of Helicobacter pylori infection on microvascular and microsurface pattern. The diagnostic accuracy of ME-NBI for EGC, high-grade IN (HGIN), and low-grade IN (LGIN) was 76.06%, 77.96%, and 77.06%, respectively. The accuracy of WLI plus biopsy in diagnosing the above lesions was 69.7%, 57.5%, and 60.53%, respectively. The rate of gyrus-like tubular pattern was highest in LGIN (60.46%), whereas the highest rate of papillary pattern was 57.14% in HGIN and villous tubular pattern was 52% in EGC. Demarcation lines have better sensitivity for differentiating EGC from IN (92.06%). The ME-NBI has higher diagnostic accuracy for EGC than WLI plus biopsy. Demarcation lines and villous and papillary-like microsurface patterns are more specific as EGC and HGIN characteristics. The cerebral gyrus-like microsurface pattern is more specific for LGIN.

Effect of Helicobacter Pylori Infection on Glucose Metabolism, Lipid Metabolism and Inflammatory Cytokines in Nonalcoholic Fatty Liver Disease Patients.

To probe into the influence of Helicobacter pylori (Hp) infection on glucose metabolism, lipid metabolism, and inflammatory cytokines in patients with nonalcoholic fatty liver disease (MASLD). A total of 140 MASLD patients admitted to our Hospital between June 2020 and May 2021 were selected as the research objects. Based on the presence or absence of Hp infection, they were divided into the study group (73 cases with infection) and control group (67 cases without infection). Glucose metabolism indicators [fasting blood glucose (FBG), 2-hour postprandial glucose (2hPG), fasting insulin (FINS), glycated hemoglobin (HbAlc)], lipid metabolism indicators [total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C)], and inflammatory indicators [interleukin-37 (IL-37), interleukin-18 (IL-18)] were measured and compared between the two groups. In terms of glucose metabolism indicators, the study group exhibited higher levels of FBG (5.84±0.49 vs 5.40±0.51, t=2.535, P=0.012), 2hPG (7.26±1.30 vs 6.50±1.53, t=3.321, P<0.001), and FINS (11.13±4.13 vs 9.12±3.72, t=3.224, P<0.001), and Insulin resistance index (HOMA-IR) (2.97±0.35 VS 2.13±0.54, t=3.761, P<0.001) and a lower level of HbAlc (5.25±0.56 vs 6.12±0.57, t=5.473, P<0.001) compared to the control group. Regarding lipid metabolism indicators, the study group exhibited higher levels of TC (5.64±1.49 vs 5.01±1.32, t=3.332, P<0.001), TG (1.89±0.34 vs 1.32±0.43, t=3.411, P<0.001), and LDL-C (3.31±0.43 vs 2.12±0.29, t=4.142, P<0.001), and a lower level of HDL-C (1.45±0.21 vs 1.78±0.42, t=4.347, P<0.001) compared to the control group. As for the inflammatory indicators, the study group exhibited higher levels of IL-37 (45.56±6.02 vs 34.02±3.28, t=9.332, P<0.001) and IL-18 (73.57±5.82 vs 60.34±4.84, t=10.141, P<0.001) compared to the control group. It is crucial to place appropriate emphasis on the impact of Hp infection on the glucose metabolism, lipid metabolism, and inflammatory response in MASLD patients, warranting careful consideration during the treatment of these patients.

Response to Article "Effect of Helicobacter Pylori Infection on Glucose Metabolism, Lipid Metabolism and Inflammatory Cytokines in Nonalcoholic Fatty Liver Disease Patients" [Letter

Response to Article "Effect of Helicobacter Pylori Infection on Glucose Metabolism, Lipid Metabolism and Inflammatory Cytokines in Nonalcoholic Fatty Liver Disease Patients" [Letter

The causal effect of Helicobacter pylori infection on coronary heart disease is mediated by the body mass index: a Mendelian randomization study

The association between Helicobacter pylori (H. pylori) infection and coronary heart disease (CHD) remains controversial, with an unclear causal link. This study employed bidirectional Mendelian randomization (MR) method, using H. pylori infection as the exposure, to investigate its causal relationship with CHD diagnosis, prognosis, and potential pathogenesis. H. pylori infection exhibited a causal association with body mass index (BMI) (β = 0.022; 95% CI 0.008–0.036; p = 0.001). Conversely, there was no discernible connection between H. pylori infection and the diagnosis of CHD (OR = 0.991; 95% CI 0.904–1.078; p = 0.842; IEU database; OR = 1.049; 95% CI 0.980–1.118; p = 0.178; FinnGen database) or CHD prognosis (OR = 0.999; 95% CI 0.997–1.001; p = 0.391; IEU database; OR = 1.022; 95% CI 0.922–1.123; p = 0.663; FinnGen database). Reverse MR analysis showed no causal effect of CHD on H. pylori infection. Our findings further support that H. pylori infection exerts a causal effect on CHD incidence, mediated by BMI. Consequently, eradicating or preventing H. pylori infection may provide an indirect clinical benefit for patients with CHD.

Effect of Helicobacter pylori infection on body fat percentage in middle-aged and elderly populations

BackgroundObesity, which is associated with excessive accumulation of body fat, is emerging as a new public health problem. Bioelectrical impedance analysis (BIA) is a non-invasive and straightforward method to analyze body composition, providing a more accurate estimate of obesity than the commonly used body mass index. The primary objective of this study was to examine the potential impact of Helicobacter pylori (H. pylori) infection on body fat percentage in a population using cross-sectional and cohort studies. Methods: A population of people who underwent physical examinations at Taizhou Hospital between 2017 and 2022 was included. The participants underwent various tests, including urea breath test, hematological examination, and anthropometric measurement, in addition, their body fat percentage was determined through the use of BIA. Univariate and multifactorial regression analyses were conducted to identify factors associated with excess body fat. Results: There was a difference in body fat percentage between H. pylori positive and negative populations. The population was divided into young and middle-aged and elderly according to age, and H. pylori infection was found to differ only in the middle-aged and elderly population. Multifactorial logistic regression showed that H. pylori infection remained associated with excess body fat in the middle-aged and elderly population. A subsequent cohort study confirmed the association of persistent H. pylori infection with excess body fat in the population. Conclusion: H. pylori was negatively associated with excess body fat in middle-aged and elderly populations, and long-term H. pylori infection has a negative effect on body fat in people.

The effect of Helicobacter pylori infection on duodenal bulbar microbiota in children with duodenal ulcer

Objective: To investigate the characteristics of duodenal bulbar microbiota in children with duodenal ulcer and Helicobacter pylori (Hp) infection. Methods: This prospective cohort study enrolled 23 children with duodenal ulcers diagnosed by gastroscopy who were admitted to the Children's Hospital of Zhejiang University School of Medicine due to abdominal pain, abdominal distension, and vomiting from January 2018 to August 2018. They were divided into Hp-positive and Hp-negative groups according to the presence or absence of Hp infection. Duodenal bulbar mucosa was sampled to detect the bacterial DNA by high-throughput sequencing. The statistical difference in α diversity and β diversity, and the relative abundance in taxonomic level between the two groups were compared. Microbial functions were predicted using the software PICRUSt. T-test, Rank sum test or χ2 test were used for comparison between the two groups. Results: A total of 23 children diagnosed with duodenal ulcer were enrolled in this study, including 15 cases with Hp infection ((11.2±3.3) years of age, 11 males and 4 females) and 8 cases without Hp infection ((10.1±4.4) years of age, 6 males and 2 females). Compared with Hp-negative group, the Hp-positive group had higher Helicobacter abundance (0.551% (0.258%, 5.368%) vs. 0.143% (0.039%, 0.762%), Z=2.00, P=0.045) and lower abundance of Fusobacterium, Streptococcus and unclassified- Comamonadaceae (0.010% (0.001%, 0.031%) vs. 0.049% (0.011%, 0.310%), Z=-2.24, P=0.025; 0.031% (0.015%, 0.092%) vs. 0.118% (0.046%, 0.410%), Z=-2.10, P=0.036; 0.046% (0.036%, 0.062%) vs. 0.110% (0.045%, 0.176%), Z=-2.01, P=0.045). Linear discriminant analysis (LDA) effect sized showed that at the genus level, only Helicobacter was significantly enriched in Hp-positive group (LDA=4.89, P=0.045), while Streptococcus and Fusobacterium significantly enriched in Hp-negative group (LDA=3.28, 3.11;P=0.036,0.025, respectively). PICRUSt microbial function prediction showed that the expression of oxidative phosphorylation and disease-related pathways (pathways in cancer, renal cell carcinoma, amoebiasis, type 1 diabetes mellitus) in Hp-positive group were significantly higher than that in Hp-negative group (all P<0.05), while the expression of pathways such as energy metabolism and phosphotransferase system pathways were significantly lower than that in Hp-negative group (all P<0.05). Conclusion: In children with Hp-infected duodenal ulcers, the mucosal microbiota of the duodenal bulb is altered, characterized by an increased abundance of Helicobacter and a decreased abundance of Clostridium and Streptococcus, and possibly alters the biological function of the commensal microbiota through specific metabolic pathways.

The Effect of Helicobacter pylori Infection on Overweight: A Systematic Review and Meta-Analysis.

The association between Helicobacter pylori infection and overweight, as one of the most common health issues, remains controversial. In this study, we systematically reviewed the effect of H. pylori infection and overweight to get a reliable answer. We used the Preferred Reporting Items for the Systematic Review and Meta-Analysis statement. We searched the association between H. pylori and overweight infection in international databases including Medline, Web of knowledge and Scopus, without any limitations of language, publication type, and publication status in search step of this systematic review from 2000 to 2020. We surveyed the title, abstract and full text of each research studies, and we used Newcastle-Ottawa quality for assessing the quality of each paper. A random effects model was used to calculate the pooled odd ratio with 95% confidence intervals. Fifteen papers were eligible for this review. The selected studies reported different Odd Ratio between overweight and H. pylori infection but Odds Ratio (95% confidence interval) in our systematic and meta-analysis study was estimated at 1.42 (95% CI; 1.12, 1.81) and it was statistically significant (P: 0.003). H. pylori infection is significantly associated with overweight, therefore, the eradication of H. pylori infection is suggested because this infectious might be resulted in overweight.

Effect of Helicobacter pylori infection and its eradication on the expression of tight junction proteins in the gastric epithelium in relation to gastric carcinogenesis.

Tight junction proteins (TJPs) play a role in epithelial defense mechanisms. However, the effect of Helicobacter pylori (Hp) on TJPs remains unclear. This study aimed to evaluate the expression of TJPs in relation to Hp infection and eradication in gastric carcinogenesis. In total, 510 subjects (284 controls and 226 gastric cancer [GC] patients) were prospectively enrolled in the study. The expression of claudin-1 and -2 (CLDN-1, -2), occludin (OCLN), and tight junction protein 1 (TJP1) was measured based on their Hp infection status in normal corpus mucosa and evaluated following Hp eradication using quantitative real-time polymerase chain reaction (qPCR) and immunohistochemistry (IHC). The expression of TJP1 in Hp+ controls was significantly lower than that in Hp- controls (p=0.006), whereas it was higher in Hp+ than in Hp- GC patients (p=0.001). Moreover, the increased expression of TJP1 in Hp+ GC patients was reduced to levels in Hp- within a year after Hp eradication and was maintained for more than 5 years. Furthermore, IHC results for TJP1 were similar to qPCR results. In particular, the higher IHC staining intensity of TJP1 in the cytosol of GC patients (p=0.019) decreased after Hp eradication (p=0.040). Hp infection affects TJP expression. The high expression of TJP1 in Hp+ GC patients was restored to control levels after Hp eradication, suggesting that TJP1 plays a role in gastric carcinogenesis.

Effect of Helicobacter pylori infection on the first-line treatment outcomes in patients with immune thrombocytopenic purpura.

Helicobacter pylori (H. pylori) eradication therapy is known to increase the platelet count, but in immune thrombocytopenic purpura (ITP), the effect of H. pylori infection on the response to treatment is not clear. This study aims to determine whether the response to the first-line treatment is affected by the states of H. pylori-positivity and -negativity in ITP patients. Adult newly diagnosed or chronic ITP patients who had not received eradication therapy for H. pylori infection were included. Characteristics of the patients, presence and severity of bleeding, initial platelet count, administered treatments, and treatment response rates were inspected. Of 119 total patients, 66 (55.5%) were female, 32 (26.9%) were H. pylori-positive, 87 (73.1%) were H. pylori-negative. H. pylori-positive and H. pylori-negative groups were not significantly different in terms of age (p=0.127), gender (p=0.078), diagnosis status (p=0.094) and the distribution of bleeding symptoms (p=0.712). The most common treatment was standard-dose steroid in both groups (62.5% vs. 68.9%, p=0.524). Rates of complete response, partial response, no response were comparable for the two groups (respectively, 75% vs. 73.6%, and 18.8% vs. 19.5%, and 6.2% vs. 6.9%), and there was no significant difference between the groups (p=0.283). It can be stated according to the present study that in ITP patients in whom treatment is indicated, the response to the first-line treatment without the administration of H. pylori eradication therapy is similar between H. pylori-positive and H. pylori-negative patients.

Effect of Helicobacter Pylori Infection on Nutrition, Metabolism, Cognition, and Serum Vitamin B12 in the Elderly

Effect of Helicobacter Pylori Infection on Nutrition, Metabolism, Cognition, and Serum Vitamin B12 in the Elderly

Helicobacter pylori Infection as a Risk Factor for Abnormal Serum Protein Levels in General Population of China.

BackgroundHelicobacter pylori (HP) infection is considered as a risk factor for nutritional and metabolic abnormalities, and serum protein is an important marker of the nutritional and immune status. It is still unknown whether HP infection affects serum protein levels.MethodsThe participants who underwent health screening from July 2020 to August 2021 were included, among whom, 1485 subjects with 14C-urea breath test (14C-UBT) values ≥100 disintegrations per minute (dpm) were defined as HP-positive cases, and 4864 cases with 14C-UBT values <100 dpm were defined as HP-negative cases. Anthropometric measurements were taken, and biochemical parameters of the blood were analyzed for all subjects. Categorical variables were compared using the χ2 test and continuous variables using Student’s t test. Logistic regression analysis was used to determine the effect of HP infection on serum proteins.ResultsAge, the proportion of female, globulin levels, total cholesterol levels, and low-density lipoprotein cholesterol levels were significantly higher in the HP infected group than in the non-infected group (P < 0.05). Height, weight, body mass index, hip circumference, albumin levels, albumin to globulin ratio, triglycerides levels, and uric acid levels were significantly higher in the non-infected group than in the infected group (P < 0.05). Multifactorial analysis revealed that HP infection was significantly associated with the risk of decreased serum albumin levels (odds ratio [OR] = 0.809, P = 3.51×10−4); HP infection was significantly associated with the risk of increased serum globulin levels (model 1: OR = 1.257, P = 1.39× 10−4); and HP infection was significantly associated with the risk of decreased albumin/globulin ratio (OR= 0.775, P = 2.30×10−5).ConclusionHP infection was significantly associated with lower serum albumin levels, elevated globulin levels, and lower albumin/globulin ratio. Thus, it is an important factor affecting nutritional metabolism.

Association of Helicobacter pylori Infection With Carotid Atherosclerosis in a Northern Chinese Population: A Cross-Sectional Study.

Numerous studies have shown that Helicobacter pylori (HP) infection may be involved in the development of carotid atherosclerosis (CAS), but this conclusion is still controversial. The aim of this study was to explore whether there is a positive association between HP infection and CAS occurrence. We collected data on demographic characteristics, lifestyle, and disease history of the participants by questionnaire. We obtained clinical anthropometric data and blood samples of the participants from clinical examinations and laboratory work. The 13C urea breath test (13C-UBT) was performed to assess the HP infection status, and carotid ultrasonography was used to diagnose the CAS and plaque types. Univariate analysis and multivariate logistic regression were used to identify the relationship between HP infection and CAS. A total of 1,424 participants were recruited for this study. A total of 740 HP-positive individuals and 684 HP-negative individuals were identified, and 345 participants were diagnosed with CAS. The prevalence of CAS was higher in the HP-positive group (26.4%) than in the HP-negative group (21.7%) (P < 0.05). A significantly higher prevalence of carotid intima-media thickening, carotid plaque, and carotid stenosis was identified in the HP-positive group than in the HP-negative group (P < 0.05). There was no significant difference in the detection rate of unstable plaques between the HP-positive and HP-negative groups (P > 0.05). In multivariate models adjusted for covariates, HP infection showed a positive association with CAS, independent of other risk factors (ORs range: 1.283–1.333, P < 0.05). HP infection independently accounted for approximately 5% of the CAS risk in the absence of other cardiovascular risk factors. A positive association between HP infection and CAS was demonstrated in this study. HP infection might be an independent risk factor for CAS. Although the effect of HP infection on CAS observed in our study was less than that of traditional risk factors, we believe that this is an indispensable advance in the etiological study of CAS. These results imply that the microbial population might play an essential role in CAS, which provides a new perspective for the primary prevention of CAS.

Observation on the Treatment and Clinical Effect of Helicobacter Pylori Infection Complicated with Gastric Ulcer

Observation on the Treatment and Clinical Effect of Helicobacter Pylori Infection Complicated with Gastric Ulcer

Effect of Helicobacter pylori infection on malignancy of undifferentiated-type gastric cancer

BackgroundAlthough almost all cases of gastric cancer are caused by Helicobacter pylori (HP) infection, there are some rare exceptions. Furthermore, the clinicopathological characteristics of gastric cancer may differ depending on HP infection status. This study aimed to determine the clinicopathological characteristics of undifferentiated-type gastric cancer (UD-GC) according to HP status.MethodsThe study involved 83 patients with UD-GC who were selected from 1559 patients with gastric cancer who underwent endoscopic resection at our hospital and whose HP infection status was confirmed. Clinicopathological characteristics were evaluated according to HP status (eradicated, n = 28; infected, n = 32; not infected, n = 23).ResultsIn patients without HP infection, UD-GCs were < 20 mm and intramucosal with no vascular invasion. In patients with eradicated HP, there was no correlation between development of UD-GC and time since eradication. Nine of twelve patients with a tumor detected ≥ 5 years after eradication had undergone yearly endoscopy. Submucosal invasion was observed in two of four patients and lymphovascular invasion in three of four patients whose UD-GC was detected ≥ 10 years after eradication. There was no significant between-group difference in the frequency of lesions with invasion into the submucosal layer or deeper (14.3%, 10.5%, and 0% in the UD-E, UD-I, and UD-U groups, respectively).ConclusionThe clinicopathological characteristics of UD-GC were similar between HP-infected patients and HP-eradicated patients. Three of four patients with eradicated HP whose UD-GC developed ≥ 10 years after eradication were not eligible for endoscopic treatment and required additional surgery resection. In contrast, UD-GC was curable by endoscopic resection in all patients without HP infection.

The Effect of Helicobacter pylori Infection on Thyroid Function Tests in Diabetic Patients and Its Relationship with Autoimmune Thyroiditis

The Effect of Helicobacter pylori Infection on Thyroid Function Tests in Diabetic Patients and Its Relationship with Autoimmune Thyroiditis

&lt;i&gt;Helicobacter pylori&lt;/i&gt; infection reduces the risk of gastroesophageal reflux disease

The aim is to study the effect of Helicobacter pylori infection on risk of developing gastroesophageal reflux disease. Materials and methods - cross-sectional observational study of 1007 patients with dyspepsia syndrome who underwent videoesophagogastroduodenoscopy with biopsy and histological examination of biopsy specimens of the gastric mucosa by OLGA-system. The age, gender, overweight, cigarette smoking, presence of Helicobacter pylori infection and gastritis stage were assessed. Results - the study showed a significant decrease in the incidence of gastroesophageal reflux disease in patients with positive H. Pylori status by 4% (RR 0,68; 95% CI, 0.49-0.94, p=0,041). The risk of developing gastroesophageal reflux disease significantly higher in overweight (RR 2,62; 95% CI 2,0-3,56; р&lt;0,001) men (RR 1,76; 95% CI 1,33-2,32; р=0,0046) who smoked cigarettes (RR 3,23; 95% CI 2,45-4,24; р&lt;0,001) and was not associated with the patient’s age and the stage of gastritis (р&gt;0,05). Conclusion - a significant reduction in the frequency and risk of developing gastroesophageal reflux disease in patients with Helicobacter pylori infection is demonstrated.

Screening and surveillance for gastric cancer: Does family history play an important role in shaping our strategy?

Family history is an important risk factor of gastric cancer. No guidelines have been developed that target gastric cancer with a family history; only hereditary familial gastric cancer is targeted. We review the available evidence regarding the familial aggregation mechanisms of gastric cancer and a strategy of screening and surveillance for gastric cancer in individuals with a positive family history of the disease. As there is a synergic effect of Helicobacter pylori infection and family history on the increased risk of gastric cancer, Helicobacter pylori eradication should be considered in all infected individuals with a family history of gastric cancer. Currently, there is weak evidence indicating that suitable timing to initiate eradication therapy is at the age of 20, when precancerous lesions, including significant gastric atrophy and intestinal metaplasia, have not been established. Reasonable timing to initiate screening for gastric cancer in individuals with a family history of gastric cancer is 10 years prior to the age of onset of gastric cancer in affected relatives. A 2-year surveillance interval, instead of the 3-year interval recommended in the present guidelines, may be better to detect early gastric cancer in those individuals who have already developed precancerous gastric lesions.

S464 Helicobacter pylori Infection and Risk of Esophageal Carcinoma: A Systematic Review and Meta-Analysis

Introduction: Helicobacter pylori (HP) is the most common cause of peptic ulcers in the gastrointestinal tract (GIT) and has been linked to various GIT malignancies, especially gastric cancer. There is little data on the association between HP infection and esophageal cancer incidence (EC). Therefore, we aimed to conduct this meta-analysis to investigate the effect of HP infection on the risk of developing esophageal cancer. Methods: We searched PubMed and the CINHAL databases for studies reporting the association between H. pylori infection and esophageal cancer from inception to September 2020. We assessed the relationship between H. Pylori infection and the incidence of esophageal adenocarcinoma (EAC) and esophageal squamous cell carcinoma (ESCC) using odds ratio (OR) and relative 95% confidence intervals (CI). Two investigators extracted the data independently, and discrepancies were resolved by discussion with a third investigator. We used RevMan Software to perform the analysis and assessed the heterogeneity using the I2 statistic. Results: This meta-analysis included 45 studies. Total HP positive cases were 311,974 and 38,188 in the ESCC and EAC group, respectively. No statistically significant difference was found between HP and ESCC (OR = 1.10, 95% CI [0.80-1.52], P = 0.55). However, according to region, the subgroup analysis revealed a significantly higher incidence of ESCC with HP (OR = 1.83, 95% CI [1.17-2.87]) for North America. There was a statistically significant reduction in EAC with HP in the overall study population (OR = 0.54, 95% CI [0.34-0.87], P = 0.01). Subgroup analysis showed that western countries were associated with statistically reduced EAC incidence (OR = 0.51, 95% CI [0.32-0.83]). On the other hand, subgroup analysis of eastern countries reported non-significant results (OR = 0.81, 95% CI [0.15-4.30]). Conclusion: Overall, no significant association was found between H. pylori infection and the risk of ESCC. There was a statistically significant reduction in EAC with HP in the overall study population. In subgroup analysis a significantly increased incidence of ESCC is seen in North America and a significantly reduced risk of EAC in western countries. Further randomized controlled trials are need to investigate the protective effect of helicobacter pylori infection for risk of esophageal adenocarcinoma.

Relationship between helicobacter pylori infection and type 2 diabetes using machine learning BPNN mathematical model under community information management

ObjectiveThis exploration aims to explore the effect of Helicobacter pylori infection on blood glucose mechanism and gastric function in patients with type 2 diabetes under the background of electronic medicine, and the effect of community information management platform on health management efficiency of patients with Helicobacter pylori, so as to lay the foundation for clinical research on Helicobacter pylori participation in the mechanism of type 2 diabetes. MethodsIn this paper, 300 patients who were treated in our hospital from June 2016 to June 2019 were selected as the research object. Among them, 228 patients with type 2 diabetes were recorded as the experimental group, and 72 patients with non-type 2 diabetes were recorded as the control group. 13C breath test and serum IgG antibody test were performed on each research object. Patients infected with Helicobacter pylori in the experimental group were divided into groups according to the degree of urine albumin excretion. Urinary albumin excretion rate was <30 mg/24 h as group A, between [30,300]mg/24 h as group B, and greater than 300 mg/24 h as group C. The control group was recorded as group D. Blood biochemical indexes and gastroscopy were detected in the four groups; the blood biochemical indexes of each group were compared and analyzed by statistical software; the artificial intelligence health information platform in community information management was established, and the mathematical prediction model of diabetes was established based on Back Propagation Neural Network (BPNN). ResultsThe proportion of Helicobacter pylori infection in patients with type 2 diabetes was 60%, and the proportion of Helicobacter pylori infection in the control group was 40%. There was a significant difference in fasting blood glucose indicator and cholesterol indicator between group C and group D, P < 0.05. There was a significant difference in the percentage indicator of glycated protein between group A and group C, P < 0.05. There was a significant difference in normal gastroscopy between group A and group D, P < 0.05. In the process of training, the error of the train set of the mathematical model based on BPNN is gradually reduced, and it has good convergence. When the number of hidden layer units is 3, the AUC (Area Under Curve) of train set is the largest. When the number of hidden layer units is 1, the AUC of the test set is the largest, so the network model with one hidden layer unit is selected. ConclusionThe community use efficiency of each performance of the artificial intelligence health information platform in community information management has been significantly improved compared with that before optimization, which can improve the health management level on the basis of patients' electronic medical information.