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Abdel Allah Hany M. M. Zahran Walid E. El-Masry Samir A. El-Bendary Mahmoud Soliman Ahmed F. 《Clinical and experimental medicine》2022,22(2):257-267
Clinical and Experimental Medicine - Identification of host genetic factors influencing the risk of developing hepatocellular carcinoma (HCC) in patients with chronic hepatitis C virus (HCV)... 相似文献
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The discovery of Helicobacter hepaticus as a causal agent of hepatitis and hepatocellular carcinoma (HCC) in mice has stimulated interest in looking for Helicobacter species in human liver samples. In this study, we searched for association between H. pylori and HCV-related liver disease. Liver specimens were collected from eighty-five patients; they were divided into five different groups according to liver pathology (METAVIR system). Group I (the 1st control group) consisted of 16 patients with chronic hepatitis C without histological activity. Group II consisted of 25 patients with chronic active hepatitis C, Group III, 17 patients with HCV-related cirrhosis and Group IV, 16 patients with HCV-related cirrhosis and HCC. Group V (2nd control group) consisted of 11 patients suffering from gastro duodenal and gall bladder diseases but negative for HCV. All cases were tested by polymerase chain reaction on liver samples for the presence of H. pylori DNA Cag A gene. Routine biochemical, radiological and RT-PCR for HCV RNA were also performed for all cases. The positivity of H. pylori PCR CagA gene in liver tissue was directly proportional to the severity of liver pathology, this being 75%, 52.9% and 32% in groups IV, III and II, respectively, which was more significant than the 1st and 2nd control groups (P < 0.001). There was a significant difference between H. pylori PCR values when compared to METAVIR staging (F) in different groups (P = 0.001). Helicobacter pylori PCR (Cag A gene) was positive in about 28.2% cases of late fibrosis (F3 + F4) while positivity was (5.9%) in early fibrosis (F1 + F2) (P = 0.0001). There was significant difference between H. pylori PCR (Cag A gene) in liver tissue and METAVIR activity in different groups (P = 0.002) as most of H. pylori PCR-positive cases were METAVIR activity A1 and A2 (15.3% and 12.9%, respectively). There was no association between H. pylori PCR and quantitative HCV RNA (P = 0.531). Also there was no significant difference of Child-Pugh staging in the H. pylori PCR-positive group when compared to the negative group (P = 0.996). There may be an association between the presence of H. pylori (Cag A gene) in the liver and disease progression in HCV-related chronic hepatitis and cirrhosis with and without HCC. 相似文献
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A new series of quinazolin-4(3H)-one derivatives containing either a thiazole or a 1, 3, 4-thiadiazole moiety were prepared in order to study the effect of such a heterocyclic combination on the expected diuretic activity. Synthesis of the target compounds (2, 4, and 6) has been achieved through an interaction of the starting 7-chloro-2-methyl-4H-3, 1-benzoxazin-4-one 1 with different heterocyclic amines. Alkylation of 3-(2-mercapto-1, 3, 4-thiadiazol-5-yl)quinazolin-4(3H)-one derivative 4 with different alkyl halides or chloroacetic acid afforded the corresponding thioethers 5 while interaction of 2-methyl-3-(1, 3, 4-thiadiazol-5-yl or thiazol-5-yl)quinazolin-4(3H)-ones (2 and 6) with various aromatic aldehydes resulted in the formation of the arylvinyl analogs 3 and 7, respectively. On the other hand, 2-morpholinomethyl-3-(2-sulfamoyl or mercapto-1, 3, 4-thiadiazol-5-yl)quinazolin-4(3H)-one derivatives 10 have also been synthesized through an interaction of the sulfonamide or thiol analog 9 with the appropriate amine. Biological evaluation of some of the target compounds as diuretic agents was carried out. The results showed that 2-[2-(4-chlorophenyl)vinyl]-7-chloro-3-(2-sulfamoyl-1, 3, 4-thiadiazol-5-yl)quinazolin-4(3H)-one 7b exhibited significant diuretic activity. The detailed synthesis, spectroscopic and biological data are reported. 相似文献
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Mahmoud El-Bendary Mustafa Naemattalah Ahmed Yassen Naser Mousa Dina Elhammady Ahmed M Sultan Mohamed Abdel-Wahab 《World Journal of Transplantation》2020,10(6):162-172
Early microbial recognition by the innate immune system is accomplished by Toll-like receptors (TLRs), with resultant initiation of a pro-inflammatory response against infecting organisms. In spite of presence of an abundance of Toll-like receptors on the surface of the liver, gut bacteria does not elicit an inflammatory reaction in healthy individuals due to tolerance to these TLRs, suggesting that the inflammatory responses seen in the liver are the result of breakdown of this tolerance. While orthotopic liver transplantation is often life saving in many instances, death following this procedure is most commonly due to infection that occurs in up to 80% of transplant recipients, most commonly due to microbial causes in up to 70% of cases and viral infections in 20%, while fungal infections affect only 8% of cases. The probability of acquiring infection following hepatic transplantation is heightened due to affection of the innate immune defense mechanisms of the host following this procedure. Single nucleotide polymorphisms of TLRs have been associated with increased likelihood of either development of post-transplant infection or eradication of infecting organism. However, conflicting reports from other studies reveal that prevalence of this single nucleotide polymorphism is not increased in infected patients. 相似文献
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Ahmed M. Abd El-Khalek Nehal Tharwat Mohammed El-Sayed Hatem Elalfy Tarek Besheer Khaled Farid Mohamed ElAgezy Wagdi Elkashef Ahmed Alhawarey Mahmoud El-Bendary Ali Hasan Elmokadem 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(3):797-803
Introduction
Percutaneous treatment of simple or hydatid liver cysts is widely used in clinical practice and ethanol is the commonest sclerosant used. Abdominal discomfort and pain commonly occurs after ethanol injection which increase with increased ethanol volume.Purpose
To evaluate the safety and efficacy of the combination of tetracycline and ethanol for percutaneous sclerotherapy of either symptomatic simple hepatic cysts or unilocular hepatic hydatid cysts.Patients and methods
A total of 34 adult patients with symptomatic simple cyst and 36 unilocular hydatid cysts underwent clinical, laboratory and radiological evaluations followed by diagnostic cyst aspiration. Each was divided into 2 arms. The first arm was treated by ethanol sclerotherapy and the second was treated by combined ethanol and tetracycline sclerotherapy.Results
Combined ethanol and tetracycline sclerotherapy was associated with fewer sessions than ethanol sclerotherapy (P?=?≤0.001) and higher rate of sustained cyst size reduction on follow up (P?=?≤0.001). Also second arm was associated with less pain than alcohol alone due to the beneficial effect of tetracycline. Conclusion: combined ethanol and tetracycline seems to be more effective, non expensive, more sustained action and more comfortable to our patients than single ethanol use. 相似文献9.
Background and study aimsChronic hepatitis is characterised by increased regenerative cell proliferation, a process that makes cells more susceptible to gene mutations and development of hepatocellular carcinoma (HCC). Evaluation of the proliferative index could be a useful tool for identifying patients at risk for HCC. The current study was planned to evaluate hepatocyte proliferation in predominant causes of chronic liver disease in an attempt to investigate predictors of proliferation.Patients and methodsThis study included 84 patients with chronic liver diseases, and they were classified into three groups: chronic hepatitis C (50 patients), non-alcoholic steatohepatitis (NASH) (20 patients) and chronic hepatitis B (14 patients). All cases were investigated by liver function tests, polymerase chain reaction (PCR) hepatitis C virus (HCV) and hepatitis B virus (HBV), routine abdominal ultrasound and liver biopsy with detection of the proliferative index using the monoclonal antibody MIBI-Ki-67.ResultsThe proliferative index was significantly higher in the chronic hepatitis C group than in the chronic hepatitis B group (P value = 0.007). There were significant correlations of the Ki-67 index in both zone 1 and zones 2 and 3 with alanine aminotransferase (ALT), aspartate aminotransferase (AST) and histological activity index (HAI) score. Using the multiple regression analysis on the variables affecting proliferation, it was found that predictors of zone 1 proliferation were the following variables: ALT, age, AST and aetiological factor, in that order.ConclusionHCV aetiology had significantly higher proliferation index, whereas NASH had the least. Increased HAI score is associated with higher proliferative index in either zone 1 or zones 2 and 3. Predictors of proliferation index in zone 1 were ALT, age, AST and aetiological factor. 相似文献
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