HEPATITIS B
Definition
Hepatitis B, hepatitis B virus (HBV) is formed by an infectious disease. Hepatitis is one of the most common infectious diseases in the world B is the ninth leading cause of death all over the world.
Hepatitis B, mild symptoms and not from an infection, the more severe liver disease and cirrhosis to hepatocellular carcinoma in the meantime (liver cancer) can cause various tables ranging. Liver cancer in the world is one of the most common cancers.
Inflammation: In response to infectious agents or irritants in the collection of a tissue of inflammatory cells and cytokines.
The antigen enters the body and the immune system does not recognize any foreign substances.
Antibodies: connect to a foreign antigen by the immune system and a protein complex that it pursues the neutralization purposes.
How is hepatitis B transmitted?
Hepatitis B, can be transmitted in various ways. Severe infection most common in the region, takes place from mother to child and from child to child. in body fluids such as blood and semen it is known to transmit the virus. (The taking of blood or sexually transmitted infection)
Asia-Pacific region, the majority of patients with the virus at a time close to the time of birth or date of birth edinir1 - they move to adulthood 9 out of 10 people who are infected with hepatitis B still infected with hepatitis B olacaklar.2
The rest of the world, the hepatitis B virus, suffered through sexual contact or blood contamination, likely to be obtained in adolescence or adulthood is higher.
What are the biological functions of the liver?
Liver oil and vitamin absorption of fat absorbed; such as albumin and coagulation factors is an important organ for making protein. in the detoxification of waste, it is still responsible for the liver. of nutrients absorbed into the bloodstream from the liver involved in the intestines; The place is treated prior to synthesis of proteins and other cellular constituents. In addition, the liver stores glucose and vitamins then to be used to dispose of harmful substances from the body, rendering it harmless (detoxification).
What is the fate of the hepatitis B virus in the liver?
Hepatitis B virus, after infecting them connected to the liver cells, resulting in the development of chronic infection, multiply by a unique mechanism. Circulation, mixing large amounts of virus and viral proteins.
How to Make Hepatitis B Virus Disease?
Hepatitis B virus placing their genetic material into the liver cells, enables the reproduction routine mechanism proliferation of these cells. The human body immune system, containing the genetic material of the virus into action to attack its liver cells. So the virus damages the liver indirectly. incessant attacks the immune system, resulting in damage to the liver cells and the dead.
Hepatitis B is the Natural History How?
Hepatitis B infection may be observed in various forms. Acute hepatitis usually heal spontaneously, but is a benign infection progresses the proportion of patients with chronic hepatitis B direction. Chronic hepatitis B, cirrhosis, including, liver failure and liver cancer can cause more serious situation to be in.
Other informations
In some individuals the virus may completely disappear during acute hepatitis.
until the end of 25-40% of patients with chronic infection will die as a result of a disease associated with the hepatitis B virus.
Organ / tissue transplanted or HIV (AIDS virus) in humans with chronic infection that infected individuals immune problems such as greatly increased.
Liver cancer in people developing this usually occurs after 30 -50 years after the acute infection.
75-90% of all liver cancer cases are the result of chronic hepatitis B.
Hepatitis B is an infectious disease, are ranked ninth in the world in the list of causes of death. More than 2 billion people throughout the world HBV (hepatitis B virus) are infected and 350 million of them, is a chronic carriers of the disease.
Hepatitis B virus in liver cells, the infected immune system (germ-infected) destroys indirectly stimulates the liver cells to attack. However, the immune system does not always completely eliminate hepatitis B virus infection.
Initially following the infection of hepatitis B symptoms may be mild or private. If symptoms appear, primarily jaundice, loss of appetite and abdominal pain may be in the form. Hepatitis B virus infection may proceed in different ways. Acute hepatitis B continues a period of 4 weeks for 6 months with chronic hepatitis B. The active form of the transition can be as long as 15-30 years.
The virus in the blood (viremia of) the most reliable method of putting forward and be counted is monitoring the hepatitis B virus DNA.
There are some antigen and antibody tests for the diagnosis of hepatitis B virus infection. These;
Pointing to the chronic hepatitis B virus infection; Testing for hepatitis B surface antigen (HBsAg)
showing that the increase of the virus; Hepatitis B e antigen (HBeAg) or HBV DNA.
0 yorum:
Yorum Gönder