分子クローニングとG型肝炎ウイルスの疾患関連:輸血で感染する薬剤
J Linnen1, J Wages, Z Y Zhang-Keck
1Genelabs Technologies, Redwood City, CA 94063, USA.
まとめ
RNAウイルスであるG型肝炎ウイルス (HGV) は,急性肝炎と慢性肝炎を引き起こし,長年持続することがあります. この輸血で感染するウイルスは,米国の献血者も含め,世界中で存在しています.
科学分野:
- ウイルス学 ウイルス学 ウイルス学
- 肝臓病理学 肝臓病理学
- 感染症 感染症は感染症です.
背景:
- G型肝炎ウイルス (HGV) は,慢性肝炎の患者で特定されたRNAウイルスです.
- HGVは,GBウイルスC (GBV-C) と遺伝的類似性を共有しており,C型肝炎ウイルス (HCV) と遠縁関係にある.
研究 の 目的:
- 新しく特定されたG型肝炎ウイルス (HGV) のゲノムと臨床関連性を特徴づける.
主な方法:
- 補完的なDNAクローンの配列を解析し,HGVの完全なゲノムを決定する.
- 暗号化されたポリタンパク質を識別するためにウイルスRNAの分析.
- 肝炎とHGVの関連とウイルス性の持続時間を評価するための臨床データレビュー.
主要な成果:
- HGVの完全なゲノムは9392個のヌクレオチドで,2873-アミノ酸ポリタンパク質をコードしています.
- HGVは,急性肝炎と慢性肝炎の両方に関連しています.
- 感染した患者では,最大9年間持続する持続性ウイルス病が観察されました.
- HGVは輸血で感染し,世界的な分布があり,米国の献血者から発見されています.
結論:
- G型肝炎ウイルス (HGV) は,ウイルス性肝炎の重要な原因であり,長期的な持続の可能性があります.
- HGVの世界的な流行と輸血による感染性は,公衆衛生上の重要性を強調しています.
関連する概念動画
Blood Transfusion and Agglutination
Blood transfusion is a therapeutic measure to restore the blood volume after extensive blood loss due to an accident or a medical procedure. Blood transfusion involves drawing a certain amount of blood from a suitable donor and infusing it into the recipient.
History
The history of blood transfusion dates back to the 17th century, when early attempts were made in animals. In 1818 James Blundell, a British doctor, performed the first successful human blood transfusion. Later in 1900, Karl...
History
The history of blood transfusion dates back to the 17th century, when early attempts were made in animals. In 1818 James Blundell, a British doctor, performed the first successful human blood transfusion. Later in 1900, Karl...
Blood Transfusion
Blood transfusion is a critical medical procedure that saves lives and treats various medical conditions. It involves transferring blood from a donor to a recipient. This process requires a thorough understanding of the ABO blood group system and its associated antigens and antibodies.
Blood Transfusion Overview
A blood transfusion is a medical procedure used to replace blood lost due to injury, surgery, or to treat conditions such as anemia or cancer. During a transfusion, donor blood is...
Blood Transfusion Overview
A blood transfusion is a medical procedure used to replace blood lost due to injury, surgery, or to treat conditions such as anemia or cancer. During a transfusion, donor blood is...
Pharmacokinetics: Drug–Food and Drug–Viral Interactions
A drug interaction occurs when the concurrent use of another drug, food, or an external substance alters the pharmacological activity of a drug. This interaction can modify the action of the original drug, affecting its effectiveness and safety.Drug–food interactions are significant as they impact drug absorption, metabolism, and excretion. For example, grapefruit juice is a well-known disruptor of drug metabolism. It inhibits the cytochrome P450 3A4 enzyme, crucial for the metabolism of many...
Transmission of Pathogens
Pathogens spread from their reservoirs to susceptible hosts through three main routes: contact transmission, vehicle transmission, and vector transmission. Each route involves distinct mechanisms of transfer.Contact TransmissionThis category includes direct contact, indirect contact, and droplet transmission:Direct contact involves immediate physical interaction between individuals—such as a handshake—which can spread pathogens like Streptococcus pyogenes, the bacterium responsible for...
Hepatitis
Hepatitis is an inflammatory condition of the liver most commonly caused by hepatotropic viruses (A–E), though non-infectious causes such as alcohol and drugs also exist.Hepatitis AHepatitis A virus (HAV) is a non-enveloped RNA virus of the Picornaviridae family. It is primarily transmitted via the fecal-oral route, typically through ingestion of contaminated food or water. After ingestion, HAV enters the bloodstream through the oropharynx or intestinal epithelium and reaches the liver. The...
Viral Hepatitis I: Introduction
Viral hepatitis is an inflammatory condition of the liver caused by infection with hepatotropic viruses, most commonly hepatitis A, B, C, D, and E. Despite variations in structure and transmission, all viruses mentioned infect hepatocytes and provoke immune responses that can hinder liver function. Additionally, some non-hepatotropic viruses can also lead to hepatic inflammation.Hepatitis A VirusHepatitis A virus (HAV) is transmitted through the fecal–oral route, typically by ingestion of food...


