Hepatitis A

Hepatitis B infection remains a global health problem, with progression to acute-chronic hepatitis, severe liver failure, and death making hepatitis B one of the most serious infections worldwide. The disease is most widely transmitted from an infected mother to her baby, after exposure to infected blood or body fluids or unsafe sexual contact.

6p viharuno 03-01-2025 0 0   Download

Hepatitis A là một trong 5 loại virus truyền nhiểm gây ra bệnh viêm gan cho người, đó là Hepatitis A, B, C, D và E. Loại virus này hiếm thấy ở những nước có hệ thống vệ sinh công cộng tốt như ở Mỹ. Tuy vậy hàng năm ước tính có khoảng 100 người chết do viêm gan có liên quan đến virus Hepatitis A (theo tài liệu CDC1) trong số 30 – 50.000 ca bệnh, hao tốn trên 300 triệu USD

80p lalan38 29-03-2013 121 19   Download

Polymerase Chain Reaction is widely held as one of the most important inventions of the 20th century in molecular biology. Small amounts of the genetic material can now be amplified to be able to a identify, manipulate DNA, detect infectious organisms, including the viruses that cause AIDS, hepatitis, tuberculosis, detect genetic variations, including mutations, in human genes and numerous other tasks.

62p zingzing09 24-04-2013 55 6   Download

Bài giảng “Hepatitis B Reactivation: A Largely Preventable Problem” giới thiệu tới người đọc các kiến thức: Users are encouraged to use these slides in their own noncommercial presentations, but we ask that content and attribution not be changed. Users are asked to honor this intent; these slides may not be published or posted online without permission from Clinical Care Options. Mời các bạn cùng tham khảo nội dung chi tiết.

69p tsmttc_004 13-06-2015 37 3   Download

The current research project genotyped HAV RNA by using protocols and primer sets designed by HAVNET. It collected and genotyped previous HAV-positive samples in VIDRL sample bank, and the results were used to establish epidemiological and molecular database of the HAV strains. The database was used to investigate the relationship between the current diagnostic samples and the previous HAV infection cases. It was expected to identify the source of the hepatitis A infection.

158p runthenight04 02-02-2023 7 2   Download

General objectives: Creating of attenuated mutant Vibrio parahaemolyticus strains causing immune response for fish to develop production of vaccines against nephrotic and hepatic necrosis disease for some marine fish.

27p tunelove 10-06-2021 13 4   Download

This study with a view to: Identifying complications after hepatic resection according to Ton That Tung’s procedure. Evaluating risk factors for complications after hepatic resection according to Ton That Tung’s procedure.

27p petsematary 02-06-2021 24 4   Download

Hepatitis B Infection is an occupational high risk factor. Immune response for vaccination was measured by Antibody to Hepatitis B surface antigen (anti HBs) levels. A course of Hep B vaccine yields a protective immune response (anti-HBs ≥10 mIU/mL) this study was designed to determine the anti HBs levels in Health Care Workers (HCWs) working as laboratory technician and staff nurses.

7p angicungduoc6 22-07-2020 21 3   Download

Schistosomiasis is an endemic disease in Egypt caused by the trematode Schistosoma which has different species. c the best known form of chronic disease with a wide range of clinical manifestations. The pathogenesis of schistosomiasis is related to the host cellular immune response. This leads to granuloma formation and neo angiogenesis with subsequent periportal fibrosis manifested as portal hypertension, splenomegaly and esophageal varices. Intestinal schistosomiasis is another well identified form of chronic schistosomal affection.

8p kethamoi1 17-11-2019 30 2   Download

Wilson disease (WD), an inherited disorder affecting copper metabolism, is characterized by hepatic cirrhosis and neuronal degeneration, which result from toxic levels of copper that accumulate in the liver and brain, respectively. We reported previously that the  1.3-kb promoter of the WD gene contains four metal response elements (MREs). Among the four MREs, MREa plays the most important role in the transcriptional activation of the WD promoter.

11p research12 01-06-2013 54 3   Download

Glycolysis from [6-3 H]glucose and gluconeogenesis from [U-14 C]glycerol were examined in isolated hepatocytes from fasted rats. A 5 mMbolus of glycerol inhibited phosphory-lationof 40 mMglucoseby50%andglycolysis bymore than 60%, and caused cellular ATP depletion and glycerol 3-phosphate accumulation. Gluconeogenesis from 5 mM glycerol was una€ected by the presence of 40 mMglucose.

6p research12 01-06-2013 44 6   Download

Fructose 2,6-bisphosphate (Fru-2,6-P2 ) plays an important role in the regulation of major carbohydrate fluxes as both allosteric activator and inhibitor of target enzymes. To examine the role of Fru-2,6-P2in the regulation of hepatic carbohydrate metabolism in vivo,Fru-2,6-P2 levels were elevated in ADM mice with adenovirus-mediated overex-pression of a double mutant bifunctional enzyme, 6-phos-phofructo-2-kinase/fructose-2,6-bisphosphatase (n¼6), in comparison to normal control mice (control,n¼6). ...

9p research12 29-04-2013 50 5   Download

Hexadecylphosphocholine (HePC) is a synthetic lipid rep-resentative of a new group of antiproliferative agents, alkylphosphocholines (APC), which are promising candi-dates in anticancer therapy. Thus we have studied the action of HePC on the human hepatoblastoma cell line HepG2, which is frequently used as a model for studies into hepatic lipid metabolism.

7p research12 23-04-2013 42 1   Download

Hepatopoietin (HPO) is a novel human hepatotrophic growth factor. Recently, we demonstrated that the extra-cellular ligand form of HPO can stimulate proliferation of hepatic cells via its specific receptor, which is on the surface of these cells.Also, the intracellular formofHPOpotentiates the transcriptional factor AP-1. Intriguingly, a variety of HPO complexes with different molecular masses were detected in hepatocytes.

6p research12 23-04-2013 25 5   Download

Although efficient vaccines are available, chronic hepatitis B (HBV) infection poses a major health problem worldwide, and prolonged treatment of chronicallyinfected HBV patients with nucleoside analogs often results in drug-resistantHBVvariants.Therefore, it is critical toevaluate the contribution of the HBV polymerase to mutations. FLAG-taggedwild-type (FPolE) andmutant (FPolE/D551A)HBV polymerases have been expressed in insect cells and purified. The purified FPolE showed DNA polymerase activity, but FPolE/D551A did not, implying that the activity was derived from FPolE....

8p fptmusic 16-04-2013 41 3   Download

Multiple signalling pathways are involved in themechanism by which insulin stimulates hepatic glycogen synthesis. In this study we used selective inhibitors of glycogen synthase kinase-3 (GSK-3) and an allosteric inhibitor of phosphory-lase (CP-91149) that causes dephosphorylation of phos-phorylasea, to determine the relative contributions of inactivation of GSK-3 and dephosphorylation of phos-phorylaseaas alternative pathways in the stimulation of glycogen synthesis by insulin in hepatocytes.

9p fptmusic 16-04-2013 41 3   Download

The immune coagulant fgl2/fibroleukin has been previously shown to play a pivotal role in the pathogenesis of murine and human fulminant hepatitis and fetal loss syndrome. Constitutive expression of fgl2 transcripts at low levels are seen in cytotoxic T cells, endothelial, intestinal and tropho-blast cells, while specific factors (such as virus and cytokines) are required to induce high levels of fgl2 expression in other cell types including monocytes/macrophages.

13p fptmusic 16-04-2013 37 5   Download

A search has been initiated for lead inhibitors of the non-structural protein 3 (NS3)-associated NTPase/helicase activities of hepatitis C virus,the related West Nile virus, Japanese encephalitis virus and the human mitochondrial Suv3 enzyme. Random screening of a broad range of unre-lated low-molecular mass compounds,employing both RNA and DNA substrates, revealed that 4,5,6,7-tetra-bromobenzotriazole (TBBT) hitherto known as a potent highly selective inhibitor of protein kinase 2,is a good inhibitor of the helicase,but not NTPase,activity of hepa-titis C virus NTPase/helicase. ...

9p fptmusic 16-04-2013 41 4   Download

The humanSUV3gene encodes an NTP-dependent DNA⁄RNA DExH box helicase predominantly localized in mitochondria. Its orthologue in yeast is a component of the mitochondrial degradosome complex involved in the mtRNA decay pathway. In contrast to this, the physiological func-tion of human SUV3remains to be elucidated. In this report we demon-strate that the hSuv3 protein interacts with HBXIP, previously identified as a cofactor of survivin in suppression of apoptosis and as a protein that binds the HBx protein encoded by the hepatitis B virus....

12p fptmusic 12-04-2013 39 3   Download

We have defined thein vivo andin vitro metabolic fate of internalized chol-era toxin (CT) in the endosomal apparatus of rat liver. In vivo, CT was internalized and accumulated in endosomes where it underwent degrada-tion in a pH-dependent manner. In vitro proteolysis of CT using an endo-somal lysate required an acidic pH and was sensitive to pepstatin A, an inhibitor of aspartic acid proteases.

13p fptmusic 11-04-2013 35 3   Download