SEARCH

20 ജനുവരി, 2014



HEPATITIS

Hepatitis is an inflammation of the liver, most commonly caused by a viral infection. There are five main hepatitis viruses, referred to as types A, B, C, D and E. These five types are of greatest concern because of the burden of illness and death they cause and the potential for outbreaks and epidemic spread. In particular, types B and C lead to chronic disease in hundreds of millions of people and, together, are the most common cause of liver cirrhosis and cancer.Hepatitis A and E are typically caused by ingestion of contaminated food or water. Hepatitis B, C and D usually occur as a result of parenteral contact with infected body fluids. Common modes of transmission for these viruses include receipt of contaminated blood or blood products, invasive medical procedures using contaminated equipment and for hepatitis B transmission from mother to baby at birth, from family member to child, and also by sexual contact.
Hepatitis A  is an acute infectious disease of the liver caused by the hepatitis A virus,The incubation period is 15–50 days. HAV is excreted in the feces towards the end of the incubation period, specific diagnosis is made by the detection of HAV-specific IgMantibodies in the blood. IgM antibody is only present in the blood following an acute hepatitis A infection. It is detectable from one to two weeks after the initial infection and persists for up to 14 weeks. The presence of IgG antibody in the blood means that the acute stage of the illness is past and the person is immune to further infection.There is no specific treatment for hepatitis A. Sufferers are advised to rest, avoid fatty foods and alcohol (these may be poorly tolerated for some additional months during the recovery phase and cause minor relapses), eat a well-balanced diet, and stay hydrated.

Hepatitis E is a viral hepatitis (liver inflammation) caused by infection with a virus called hepatitis E virus (HEV).The incubation period of hepatitis E varies from 3 to 8 weeks. After a short prodromal phase symptoms lasting from days to weeks follow. They may include jaundice, fatigue and nausea. The symptomatic phase coincides with elevated hepatic aminotransferase levels.
Acute infection may occur with limited or no symptoms, or may include symptoms such as jaundice (yellowing of the skin and eyes), dark urine, extreme fatigue, nausea, vomiting and abdominal pain.Hepatitis may occur with limited or no symptoms, but often leads to jaundiceanorexia (poor appetite) and malaise. Hepatitis is acute when it lasts less than six months and chronic when it persists longer. Worldwide hepatitis viruses are the most common cause of the condition, but hepatitis can be caused by other infections, toxic substances (notably alcohol, certain medications, some industrial organic solvents and plants), and autoimmune diseases.

Most liver damage is caused by 3 hepatitis viruses, called hepatitis A, B and C. However, hepatitis can also be caused by alcohol and some other toxins and infections, as well as from our own autoimmune process (the body attacks itself). 
LIVER IS AFFECTED ................
The liver has a wide range of functions, including:
  • Detoxification (filters harmful substances form the blood, such as alcohol)
  • Stores vitamins A, D, K and B12 (also stores minerals)
  • Protein synthesis (makes certain amino acids - the building blocks of proteins)
  • The production of biochemicals needed for digestion, such as bile
  • Maintains proper levels of glucose in the blood
  • Produces 80% of your body's cholesterol (cholesterol is vital)
  • The storage glycogen (also converts glucose to glycogen)
  • Decomposing red blood cells
  • Synthesizing plasma protein
  • The production of hormones
  • Produces urea (the main substance of urine

അഭിപ്രായങ്ങളൊന്നുമില്ല:

ഒരു അഭിപ്രായം പോസ്റ്റ് ചെയ്യൂ

നിങ്ങളുടെ അഭിപ്രായങ്ങള്‍ ഇവിടെ അറിയിക്കുക