Opening: Hepatitis B is a viral liver disease that can cause mild to severe illness. The virus is one of several types of hepatitis viruses that cause inflammation and affect your liver's ability to function. Body: Hepatitis B is a contagious liver infection caused by the hepatitis B virus. Hepatitis B can be acute or chronic. Every type of hepatitis can increase your risk of liver scarring and liver failure. Hepatitis B infection may be either acute (short-lived) or chronic (long lasting): • Acute hepatitis B infection may last less than six months. Normally your body will clear of the virus within a few months of infection. Hepatitis B often cause acute infection, but in some cases it might be chronic. • If the infection lasts longer than
As you know autoimmune diseases are your immune auto-generate antibodies against cells of your body. In here, I don’t tell physiology of autoimmune diseases but I will tell one of most autoimmune diseases that is immune fertility disease. Researchers at the University of Virginia Health System have found a new human protein, radical radial spoke protein 44 (RSP44) in July, 2007. RSP44 is antigen can be found in all men, residing in the sperm tail at the center of a structure known as the axoneme. Antigens can only stimulate antibody production when they come in contact with components of the blood. Under normal conditions, blood and sperm do not mix. Direct contact between the two is prevented by a cellular structure in the testes called
Hepatitis B virus infection is caused by a DNA virus belonging to the hepadnaviridae family of viruses. Approximately 2.2 million people in the United States of America are infected with Hepatitis B virus. Many of these patients, though they appear healthy, continue to spread the virus to others. Hepatitis B virus infection can be transmitted in the following ways: contact with contaminated blood (shared needles), sexual contact, and from mother to child. Unlike Hepatitis A, Hepatitis B is not spread through food, water, or causal contact. 95% of adults who get Hepatitis B can clear the virus through their system. However the remainder of the adults go on to develop chronic hepatitis B infection. This can
The Hepatitis B virus is a disease that affects the liver and results in swelling and loss of normal function in the liver. It is estimated that 350 million people are infected with Hepatitis B worldwide, with 50 million new cases diagnosed every year.(1) In the Unit...
Hepatitis B Virus (HBV) is a virus that leads to infection of the liver. Infection of the HBV can be acute or lifelong (chronic). Humans are the only known host for HBV (CSC, 2017). This virus can survive on environmental surfaces for up to seven days (WHO, 2017).
The Hepatitis A Virus affects many different systems within the body. The first being the digestive system and the gastrointestinal system because Hepatitis A causes an acute liver infection. The liver’s job is to process nutrients, filter the blood and toxin from your body, and fight infections. It produces important blood components, proteins, and bile which helps you digest food. The liver also stores glucose and vitamins. The Hepatitis A Virus causes inflammation that interrupts the liver’s ability to perform these vital functions. Having a healthy liver is crucial to your health because it supports many other body systems. For example, one function of the liver is to produce bile which is needed to break down fats. The body stores bile in the gallbladder and then sends it to the beginning section of the small intestine. Bile is then combined with other digestive
Hepatitis B Virus (HBV) is a double-stranded DNA virus in the Hepadnaviridae family. The infectious particle is 42nm in diameter, with a genome 3200 nucleotides long. It has an outer envelope and an icosahedral nucleocapsid, which contains viral DNA polymerase and has a diameter of 27nm. The envelope contains the HBV surface antigen (HBsAg); this is the molecule to which anti-HBV antibodies are directed. The non-infectious hepatitis B particles are composed of HBsAg only and come in the form of filaments and spheres. Their only likely purpose is binding up antibodies so the infectious particles can remain free. In humans HBV infects hepatocytes where it replicates within the nucleus, but can also be found in smooth muscle, bone marrow, kidneys, thyroid glands and other sites.
Hepatitis B virus (HBV) is a severe and common virus that has infected ‘more than two billion people alive today at some point in their life.’1 It is a hepadanavirus that interferes with the liver functions as it replicates in the hepatocytes (liver cells) and induces a immune response that is responsible for the inflammation of liver.2 Viruses are not motile, which means that HBV is also sessile and does not form spores. The spherical virion, is called a Dane Particle3 that is 42nm in diameter binds to the surface of hepatocyte.1 The virion itself contains an inner protein core, 27nm thick filled with circular partially double stranded DNA, DNA polymerase and reverse transcriptase.1 It is an enveloped virus, so it also holds an outer lipoprotein envelope4 that is 7nm thick and is comprised of many embedded surface proteins such as surface antigen for viral binding and entry.1 HBV has an average incubation period of three months, which means that it does not start showing symptoms for the first three months that the person is infected and that person can unknowingly infect others.2 ...
“Hepatitis is an inflammation of the liver.”("What Is Hepatitis?") There are three main types of hepatitis. These include hepatitis A, B, and C. These three types of hepatitis cause the most concern to medical staff due to their ability to spread and cause outbreaks. “Hepatitis A is a contagious liver disease that results from infection with the Hepatitis A virus.” (Centers for Disease Control and Prevention) It can range from acute to chronic. An individual can become infected with hepatitis A if they eat or drink food or water that has been contaminated with the virus. Some common “sources of vitamin A include shellfish, fruits, vegetables, ice and water”. (U.S. National Library of Medicine. “Hepatitis A.”) Hepatitis B is a serious, endemic, worldwide disease that can occur at any age. (Wilkins 45) The hepatitis B virus causes hepatitis B infection. Hepatitis B is transmitted though contact with the blood or bodily fluids of an infected person. (U.S. National Library of Medicine. “Hepatitis B.”) Hepatitis C...
An estimated 242,251 Canadians, and 150 million people worldwide are chronically infected with the hepatitis C virus, and more than 350 000 people die every year from hepatitis C-related liver diseases.1 Hepatitis C can lead to other serious diseases, such as liver failure, death, etc. But without any vaccines available to prevent the contraction of the disease, it may be hard to avoid. Due to disease generally being asymptomatic many people are unaware that they have it, further spreading the disease because of a lack of prevention mechanisms. Hepatitis C when developed chronically can cause serious affects on the liver, which may even lead to death. With hepatitis C being such a serious disease, it is important that more people be tested for it so they can start treatment in the early stages of the disease, as well as be aware and informed, before it becomes a chronic infection leading to serious complications.
Hepatitis A is a virus or an infection that causes liver disease and inflammation of the liver. According to Centers for Disease and Prevention, hepatitis A is a self- limited disease that does not cause a chronic infection and it is rarely fatal. The virus is an infectious disease of the liver which cannot be transmitted by sneezing and coughing. It is usually transmitted from person to person through the feces or the mouth, from consuming contaminated food or water. Many people do not experience any symptoms of hepatitis A, but if someone was to get it, then the symptoms could last from 2 weeks to 6 weeks. The blood is tested to determine how the liver is functioning. The blood is usually taken from the vein in the arm and
Hepatitis A is caused by a virus that infected the liver cells which spread when people eat and drink something contaminated with feces. According to Mayo Clinic, the virus can spread by eating food when someone with the virus does not thoroughly wash their hands after using the restroom, drinking water that has been infected with feces, eating raw shellfish from water polluted with sewage, being in close contact with someone who is infected even if the person has no symptoms, and having sexual partners who have the virus. According to the Centers for Disease Control, a hep A vaccine is recommended for homosexual men, laboratory workers, people who use illegal drugs, people with chronic liver disease, and people who travel the world. Cases of hepatitis A are not distinct from other types of acute viral hepatitis. According to WHO, specific diagnosis are made by the detection of Hepatitis A Virus (HAV)-specific Immunoglobulin G (IgM) antibodies in the blood. Additional tests include reverse
What is hepatic cirrhosis? According to the medical dictionary hepatic cirrhosis is when scar tissue replaces the liver’s healthy tissue. This disease changes the structure of the liver and blood vessels that nurture it. It reduces the liver’s capability to produce proteins and process hormones, nutrients, medications, and poisons. Cirrhosis is an illness that gets worse over time and possibly can become life threatening. This serious illness is ranked as the ninth leading cause of death in the U.S. It is the third most common cause of death for adults between 45 and 65 years of age. It occurs in more than fifty percent of undernourished chronic alcoholics. Unfortunately it kills about 35,000 people per year. In other country’s such as Africa and Asia death from cirrhosis is usually caused by hepatitis B.
Hepatitis B, an infectious disease caused by the Hepatitis B virus (HBV, a DNA virus), was formerly called serum hepatitis, inoculation hepatitis and post-transfusion hepatitis. Infection with HBV may result in acute, fulminant or chronic hepatitis, sometimes even resulting in a chronic asymptomatic carrier state, apart from hepatocellular carcinoma and liver cirrhosis (Davis 179). The disease is transmitted when an individual comes in contact with infected blood or objects. It may also be transferred from an infected mother to her infant either during or after birth (Zuckerman et al. 211). Transmission may also occur by accidental inoculation from infected needles and hospital equipment, intravenous drug abuse, body piercing, tattooing, and mouth-mouth kissing (Zuckerman et al. 210). The risk of Hepatitis B is particularly high in individuals with multiple sex partners, and in homosexuals. The HBV virus occurs in morphologically different forms in the serum of infected individuals. HBV infection has an incubation period of about 75 days. Systemic symptoms of the disease include fatigue, fever, dyspepsia, arthralgia, malaise, and rash, while local symptoms include hepatomegaly, jaundice, dark urine, and pale stools (Davis 179; Zuckerman et al. 210).
This case study is about Abdul Chidiac, a 51 year old male, married with 4 children. He had a medical history of hypertension, hypercholesterolaemia and cirrhosis with two admissions in the last six months. He is a smoker and drinks beer, 5-6 bottles per day. As Carithers & McClain (2010) explained the patient’s medical history is another indicator of the risk for cirrhosis; the progression to cirrhosis is adaptable and may take time over weeks or many years. Cirrhosis is a liver disease characterized by permanent scarring of the liver that interferes with its normal functions including alcoholism. Most people who drink large amounts of alcohol cause harm to the liver in some way (Heidelbaugh & Bruderly, 2006). The cause of cirrhosis is not yet known, but the connection between cirrhosis and excessive alcohol ingestion is established (Jenkins & Johnson, 2010). Common causes of cirrhosis include: alcohol abuse, hepatitis B infection, hepatitis C infection and non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (Schuppan & Afdhal, 2008).
The common change is liver cell necrosis. It may be the form of an acute hepatitis or viral or alcoholic type. Alternatively there may be continuous liver cell damage as in metabolic disorders. When necrosis is massive as in severe viral or drug induced hepatitis, the areas of surviving parenchyma are assumed to undergo regeneration but fail to reproduce normal lobular or acinar architecture. The compressed necrotic zones then form the basis of the fibrous septa of the cirrhotic liver.