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Autoimmune hepatitis (AIH) is a chronic progressive inflammatory disease of the liver caused by the attack of liver cells by the autoimmune system, with the features of positive serum autoantibodies, high IgG, and/or γ-globulinemia. Current studies on pregnancy in patients with AIH mainly focus on labor complications, and there is still a lack of systematic recommendations for the evaluation, treatment, and management of diseases in the progestational stage, during pregnancy, and after delivery. Although immunity is suppressed during pregnancy, poor disease control within one year before pregnancy and spontaneous drug withdrawal during pregnancy can significantly increase adverse pregnancy outcomes. Therefore, this article describes how to implement multidisciplinary collaboration and management of the whole cycle of pregnancy, so as to improve maternal and fetal safety.
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Primary biliary cholangitis (PBC) is an autoimmune disease. Although PBC has the features of autoimmune disease, it has poor response to immunosuppressants and good response to the drugs participating in bile acid metabolism, such as ursodeoxycholic acid. Studies have shown that the bicarbonate secretion of biliary epithelial cells is impaired in PBC patients, and bile acid not blocked by HCO3- umbrella enters biliary epithelial cells and mediates their damage and apoptosis, leading to the expression of autoantibodies in apoptotic cells and immunologic injury. In order to explore the role of HCO3- umbrella secreted by biliary epithelial cells in the pathogenesis of PBC, this article briefly introduces the physiological function and production mechanism of HCO3- umbrella and the influencing factors for HCO3- secretion, and it is pointed out that reduced HCO3- secretion may be a key link in the pathogenesis of PBC and a potential therapeutic target.
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Objective To investigate the infection rate and risk factors of Helicobacter pylori in healthy people in Luzhou. Methods From May 2017 to May 2018, the number of physical examinations for Helicobacter pylori infection was 18, 684 in the Affiliated Hospital of Southwestern Medical University of Ganzhou, the Affiliated Hospital of Southwestern Medical University and Cangzhou People 's Hospital and Jixian People's Hospital.C14, C13 breath test or Hp antibody positive could be considered as Helicobacter pylori infection. Eight hundred people were randomly selected to conduct a telephone survey. The survey content included general information, living habits, blood type and personal and family gastrointestinal related past medical history. Results The HP infection rate of the medical examination population in Cangzhou City was 31.6％, the male HP infection rate was32.4％ (3788/11836) , the female HP infection rate was 30.4％ (2086/6848) , and the male HP infection rate was higher than that of the female (P = 0.025). Univariate analysis showed that gender, BMI, drinking, drinking water, frequent eating, family members and the previous digestive tract diseases, and previous history of oral disease were risk factors for Helicobacter pylori infection. Results of multivariate logistic analysis showed Male, BMI, drinking, drinking water, eating out often, family members and the digestive tract disease, and a history of oral disease were risk factors for Helicobacter pylori infection. Conclusion BMI, drinking water, and eating out in the medical examination population of Quzhou City, family members, the digestive tract diseases and previous history of oral disease are risk factors for Helicobacter pylori infection.
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To investigate the effects of equal concentration of Helicobacter pylori suspension on gastric mucosal infection in mice by different gavage methods. Methods: Six-week-old male C57BL/6 mice were infected by a suspension of Brucella broth containing the same amount of NCTC11637 Helicobacter pylori suspension by A, B, C, and D methods. For method A, the mice were intragastrically administered with Helicobacter pylori suspension (0.2 mL per mouse), once two day for 5 times; for method B, the mice were intragastrically administered with Helicobacter pylori (0.2 mL per mouse) once a day for 5 times; for method C, the mice were perfused with 0.4 mL per mouse of Helicobacter pylori suspension on the first day, then once a day and 0.2 mL per mouse for 3 times; for method D, the mice were administrated with 0.4 mL per mouse Helicobacter pylori suspension on the first day, 0.2 mL per mouse every other day for 3 times. For method E, the mice received equal amounts of normal saline. The mice were killed at 2, 4, and 6 weeks after gavage. The gastric mucosa was detected by rapid urease test for Helicobacter pylori infection, and gastric mucosa was taken for HE staining to observe the degree of infection. Results: After 2 weeks of gavage, the infection rates of the mice in A, B, C, and D group were 33.3%, 50.0%, 66.7%, and 33.3%, respectively. The degree of inflammation infection was as following order: C group>B group>D group>A group>E group. The infection rates of mice after 4 weeks of gavage in the A, B, C, and D groups were 50.0%, 83.3%, 83.3%, and 66.7%, respectively. The degree of inflammation infection was as following order: C group>B group>D group>A group>E group. After 6 weeks of gavage, the infection rate in A, B, C, and D groups was 100%, while the degree of inflammation infection was as following order: C group>D group>B group>A group>E group. Conclusion: At the acute stage of Helicobacter pylori infection, different gavage methods show different infection rates in mice, and the degree of inflammation is different. At the chronic stage, different gavage methods display the same infection rate in mice with different degree. The gavage method that 0.4 mL Helicobacter pylori suspension on the first day, then once a day and 0.2 mL for 3 times is most conducive to Helicobacter pylori colonization in the gastric mucosa of mice. This method can induce the the most seriou inflammatory infection and is beneficial to the successful establishment of the Helicobacter pylori infection model.