Frequency of ABO blood group in peptic ulcer disease in Iranian subjects

Factors associated with peptic ulcer perforations in Uganda: a multi-hospital cross-sectional study

INTRODUCTION

Perforated peptic ulcer is the worst complication of peptic ulcer disease whose burden is disproportionately higher in low-income settings. However, there is paucity of published data on the patterns of perforated peptic ulcer in the region. The aim of this study was to determine the factors associated with anatomical patterns of peptic ulcer perforation, as well as the clinical, socio-demographic, and anatomical patterns among patients in Uganda.

METHODS

This was a cross sectional study that enrolled 81 consecutive patients with perforated peptic ulcers. Using a structured pretested questionnaire the social demographic and clinical characteristics were obtained. At surgery, the patterns of the perforations were determined. Logistic regression was done in SPSS version 22 to determine the factors associated with the anatomical patterns.

RESULTS

Perforated peptic ulcer disease was more prevalent among males (79.5%), peasants (56.8%) and those from rural areas (65.4%). Majority of study participants were of blood group O (43.2%). Gastric perforations were more common (74.1%). Majority of the perforations were found anteriorly (81.5%). Being a casual laborer was independently associated with lower odds of having a gastric perforation compared to being a peasant farmer (P < 0.05).

CONCLUSION

Public health campaigns aimed at prevention of peptic ulcer perforations should prioritize the males, peasants and those living in rural areas. When a patient in our setting is suspected to have a peptic ulcer perforation, the anterior part of the stomach should be considered as the most likely site involved more so in peasant farmers.

Association of Different ABO and Rh Blood Groups with the Erythroprotective Effect of Extracts from Navicula incerta and Their Anti-Inflammatory and Antiproliferative Properties

Previous studies have reported that different blood groups are associated with the risk of chronic degenerative diseases that mainly involve inflammation and neoplastic processes. We investigate the relationship between blood groups and the erythroprotective effect of extracts from Navicula incerta against oxidative damage as a proposal to develop drugs designed for people with a specific blood type related to chronic pathology. The study was carried out through the elucidation of the erythroprotective potential, anti-inflammatory and antiproliferative activity of Navicula incerta. Research suggests that the presence or absence of certain blood groups increases or decreases the abilities of certain phytochemicals to inhibit oxidative stress, which is related to the systemic inflammatory response involved in the development of different types of cancer. The pigment-rich extracts from Navicula incerta inhibit ROO•- induced oxidative stress in human erythrocytes on the A RhD+ve antigen without compromising the structure of the cell membrane. This result is very important, since the A antigen is related to the susceptibility of contracting prostate cancer. Similarly, it was possible to inhibit the proliferation of cervical (HeLa) and prostate (PC-3) carcinoma. The combinatorial analysis of different biological activities can help design phytochemicals as new candidates for preventive drugs treating the chronic degenerative diseases associated with a specific blood group.

The association between ABO blood group distribution and peptic ulcer disease: a cross-sectional study from Ethiopia

BACKGROUND

Studies have shown that ABO blood group antigens are associated with peptic ulcer disease (PUD). There are limited sources regarding the association of blood groups with PUD patients in Ethiopia. The aim of this study was to assess the association between ABO blood group distribution, non-steroidal anti-inflammatory drugs (NSAIDs), smoking, alcohol, coffee, and PUD at Tikur Anbessa Specialized Hospital, Addis Ababa, Ethiopia.

METHODS

A cross-sectional study was undertaken, and a total of 63 endoscopically confirmed PUD patients and 63 healthy controls were screened for ABO blood grouping using the standard slide agglutination reaction. Stool antigens were checked to determine Helicobacter pylori status of PUD patients. Chi-square and logistic regression were used for statistical analysis.

RESULTS

The ABO blood group distribution of PUD patients was 19.04% (12/63), 19.04% (12/63), 11.11% (7/63), 50.79% (32/63) for blood group A, B, AB, and O, respectively, while among control groups it was 25.39% (16/63), 23.80% (15/63), 12.69% (8/63), and 38.09% (24/63) for blood group A, B, AB, and O, respectively. 34.1% (22/63) of PUD patients had gastric ulcer and 65.9% (41/63) had duodenal ulcer. There was statistically a significant association between sex (p=0.001), use of NSAIDs (p=0.001), smoking cigarette (p=0.014), alcohol consumption (p=0.028), and PUD.

CONCLUSION

Although PUD trended as more prevalent among patients with blood group O than other blood group types their association was not statistically significant.

Determination of complete sequence information of the human ABO blood group orthologous gene in pigs and breed difference in blood type frequencies

The sequence information of the genomic form of the human ABO blood group orthologous gene (erythrocyte antigen A, EAA) is not complete in pigs. Therefore, we cloned and characterized the nucleotide sequence of EAA intron 7, which is critical to understand genetic difference between A and 0 blood groups in pigs, covering complete genomic sequence information of EAA excluding a ~560bp unsequencible gap. We also analyzed genetic polymorphisms within EAA intron 7 and exon 8. We found difference in A0 blood group frequencies among pig breeds. In addition, we designed a new genomic DNA-based A0 blood group typing method and improved the accuracy and simplicity of the typing.