Zusammenfassung der Ressource
Hepatitis B
- a viral infection of the liver
- anatomy of the liver
- hepatobiliary system
- physiology of the liver
- Blood reservoir
- recieves dual blood supply from portal vein and hepatic artery
- metabolism
- Glucose regulation - fatty acid synthesis - transamination
- detoxification
- removal of ammonia and drugs
- storage site
- Vitamen A-Vitamen B12-Iron
- Diagnosis and lab investigations
- serology
- signs and symptoms
- mainly jaundice
- types
- Pre-hepatic
- +++ RBC's destruction
- +++ unconjugated bilirubin
- casues
- hemolytic anemia
- thalassemia
- physiological jaundice
- dark urine - normal stool
- hepatic
- Liver disease
- ++ conjugated and
unconjugated bilirubin
- causes
- hepatitis
- alcoholic liver disease
- liver cancer
- ++ AST-ALT /dark urine/ clay stool
- post-hepatic
- decrease flow of bile (obstruction)
- +++ conjugated bilirubin
- casues
- gallstones
- tumor head of pancreas
- bile duct cancer
- +++ ALP/dark urine/clay stool
- treatment
- antiviral drugs
- adefovir
- lamivudin
- entacavir
- pegylated Interferon
- epidemiology
- A
- Developing countries with poor sanitary conditions and hygienic practices
- B
- Western Pacific Region and the WHO African Region
- C
- Eastern Mediterranean and European Regions
- D
- Mediterranean, Middle East, Pakistan, Central and Northern Asia, Japan
- E
- Resource-poor areas with frequent water contamination-Areas with safe drinking water supplies
- General charecteristics of viruses
- DNA
- enveloped
- HepaDNA
- Hepatitis B
- disease course
- Acute infection
- 90% resolution
- 1% fulminant hepatitis
- 9% becomes chronic
- resolution
- Asymptomatic carrier
- chronic persistent hepatitis
- chronic active hepatitis
- naked capsid
- RNA
- +
- enveloped
- Flavi
- hep C
- naked capsid
- pico
- Hep A
- Calici
- Hep E
- -
- +/-
- + via DNA
- physiology of extrahepatic biliary system