Navigation Links
Helper in Biological Definition

Defective interfering particle

... by themselves. Instead, they depend on coinfection with a suitable helper virus. The helper virus provides the gene functions that are absent from the DIPs. ...

Major histocompatibility complex

... Class II molecules interact exclusively with CD4+ T cells (also known as helper T cell lymphocytes or HTLs). The helper T cells then help to trigger an appropriate immune response which may ...

T cell

... target cells which express specific antigens that they recognize. helper T cells (CD4 + ) are "middlemen" in the immune response. When they get ... HIV infection, and the decrease of CD4 + T cells results in AIDS . Some helper T cells secrete cytokines that turn off the immune response once an ...

Antibody

... B cells of the immune system. B cells are activated upon binding to their specific antigen. In some cases the interaction of the B cell with a T helper cell is also necessary. Structure of the antibody Immunoglobulins are heavy plasma proteins, often with added sugar chains (see ...

Antigen

... cells (APCs), and degraded into fragments. The fragments are then presented on the surface of APCs by class II histocompatibility molecules to T helper cells (CD4 + ). Those that are specific for them, get activated, so they start to secrete cytokines . The cytokines then activate cytotoxic ...

Helper T cell

... A helper (or T H ) T cell is a T cell (a type of white blood cell ) which has on its surface antigen receptors that can bind to fragments of antigens ...

Immune system

... to signal that cell to become apoptotic ("commit suicide"), thus killing that cell and any viruses it is in the process of creating. helper T cells (T H cells) activate infected macrophages (cells that ingest dangerous material), and also produce cytokines ( interleukins ) that ...

Memory B cell

... system, they are stored inside the circulatory system for later use, for long periods of time, possibly a whole lifetime. Like other cells such as helper T cells , killer T cells , and plasma cells they never become directly involved in the immune response to foreign objects in a living body. If a ...
Other Contents
(Date:8/27/2014)... nerve cells to rearrange existing patterns of activity than ... a study of monkeys has found. The scientists explored ... activity of brain cell networks. The study was partly ... looked into the brain and may have seen why ... Aaron Batista, Ph.D., an assistant professor at the University ...
(Date:8/27/2014)... An invasive grass species frequently found in forests has ... feed on American toads, a new University of Georgia ... introduced to the U.S. in the early 1900s, is ... spread to more than a dozen states in the ... roads and in forests, it can survive in widely ...
(Date:8/27/2014)... pathogens posing the greatest risk to Europe based upon ... of Liverpool researchers using a ,big data, approach to ... of Infection and Global Health ranked the top 100 ... animals using a system which, they believe, will help ... the spread of infectious diseases, including as a result ...
Breaking Biology News(10 mins):Scientists plug into a learning brain 2Scientists plug into a learning brain 3More wolf spiders feasting on American toads due to invasive grass, UGA study shows 2More wolf spiders feasting on American toads due to invasive grass, UGA study shows 3Big data approach identifies Europe's most dangerous human and domestic animal pathogens 2
(Date:8/27/2014)... Amy Norton HealthDay Reporter , ... part in clinical trials of new heart disease treatments are ... new study confirms. Experts said the findings, which appear ... Association , aren,t surprising -- but they are troubling. ... more select patient population that is not fully representative of ...
(Date:8/27/2014)... from our parents shapes many aspects of our lives. ... epigenome that is set during development, but can be ... by those of our parents and grandparents. , The ... supporting proteins that determine whether genes are expressed or ... our own health, but also that it may be ...
(Date:8/27/2014)... spending for commercially insured individuals is due primarily to ... use, according to a new study led by researchers ... Practice, published in the August issue of the ... increasing concern that consolidation in the health care marketplace ... ultimately, consumers," said Carrie Colla, PhD, assistant professor at ...
(Date:8/27/2014)... 27, 2014 CarePoint Health is ... Hoboken Pediatrics has joined our network, CarePoint Health ... Dr. Piotr Oko, Dr. Yanina Meshko and Dr. ... skilled and experienced physicians comprise CarePoint Health Medical ... practices in Hudson County, representing a wide range ...
(Date:8/27/2014)... Scientists at The Scripps Research Institute (TSRI) have ... can be associated with alcohol dependence. , This ... type 1 (Nf1), which TSRI scientists found is linked ... Nf1 regulates gamma-aminobutyric acid (GABA), a neurotransmitter that lowers ... novel and seminal study provides insights into the cellular ...
Breaking Medicine News(10 mins):Health News:Heart Studies Don't Reflect Real-World Patients, Study Finds 2Health News:Heart Studies Don't Reflect Real-World Patients, Study Finds 3Health News:Scientists map the 'editing marks' on fly, worm, human genomes 2Health News:Scientists map the 'editing marks' on fly, worm, human genomes 3Health News:Scientists map the 'editing marks' on fly, worm, human genomes 4Health News:Tracking spending among the commercially insured 2Health News:Hoboken Pediatrics Joins CarePoint Health Medical Group 2Health News:Hoboken Pediatrics Joins CarePoint Health Medical Group 3Health News:Scripps Research Institute scientists link alcohol-dependence gene to neurotransmitter 2
Other TagsOther Tags