Immune system

Antibody (214)
Antigen (18)
Bactericide (5)

Synopsis: 5. medicine & health: Immune system:


impactlab_2010 00679.txt

The scientists tested the animals for levels of antibodies, natural molecules produced by the sheeps immune systems to fend off infections such as influenza

The sheep whose blood contained the most antibodies lived the longest, the researchers found. These animals also were most likely to survive harsh winters.

Sheep with lower levels of antibodies tended to die earlier, they found, but also gave birth to more lambs each year.


impactlab_2013 01154.txt

If your body learns that a specific microbe or substance#any antigen, or visitor to the body#is a foe,

If it recognizes the antigen as a friend, the immune system will leave it alone.##oeexposure tells the immune system,

and who more frequently showed antibodies to the Hepatitis a virus, H. pylori bacteria and other microbes associated with poor hygiene practices#were far less likely to have allergies.


impactlab_2014 00678.txt

#How a breast milk antibody plays an important role in infant gut development Breastfeeding is an important strategy to ensure a healthy balance of good bacteria in an infant s gut.

Now, Eric Rogier from the University of Kentucky has found a milk antibody called SIGA also helps to set up the right community of gut microbes.

This antibody sets up a healthier environment in an infant s intestinal tract, so they re better prepared to withstand environmental problems later in life,

It s an antibody found in our bodily secretions. We manufacture it in ridiculous amounts:

mother s milk is the only source of the antibody. When Rogier engineered mutant mice that couldn t produce SIGA in their milk,

those that didn t get the antibody from their mothers reacted more vigorously. They strongly activated several genes that have been linked to IBD in humans.

or even if the purified antibody could help older children or adults with intestinal problems. And


Livescience_2013 01319.txt

Blood tests of 50 dromedary (one hump) camels in Oman a country in the Arabian peninsula found that all had developed antibodies against the MERS virus a sign that the camels may have been infected in the past with the MERS virus

The study did not find MERS antibodies in blood samples taken from closely related animals such as alpacas and llamas in The netherlands and Chile.


Livescience_2013 01441.txt

This occurs in the lamina propria and crypt regions of the intestine when the patient eats specific food-grain antigens or toxic amino acid sequences.

when a body s immune system overreacts to a food and produces Ige antibodies as a reaction producing histamines


Livescience_2013 04420.txt

Previously the researchers found that camels had developed antibodies against the MERS virus. So far health officials have reported 163 human cases of MERS including 71 people who died.


Livescience_2013 06689.txt

The proteins known as antibodies are examples of biomarkers indicating possible infection. Chris Remien a postdoctoral fellow at the National Institute for Mathematical and Biological Synthesis uses math to better understand how biological markers relate to the diets of animals


Livescience_2014 03531.txt

when our bodies produce allergic antibodies to the proteins in tree and grass pollens. The antibodies then sit in the immune cells we have on all surfaces of our bodies in contact with the outside.

When more pollen is inhaled the proteins then cause these antibodies to burst and release histamine.

This is a normal defence system gone astray. Histamine causes the familiar itching sneezing and running of the nose

We don t know why some people produce antibodies against pollen and others don t but it is now more common to produce them than not.

because people stop producing the allergic antibodies. Because of this development pattern people with hay fever are at greater risk of developing asthma.


Nature 00032.txt

if they have developed antibodies to the virus. The investigation into the Ebola Reston infections began after farmers in the Philippines reported high mortality rates in their pigs in 2008.

the pigs may carry antibodies that should indicate an approximate mortality rate associated with exposure. Rollin suspects that,


Nature 00235.txt

On the basis of these data, it would be appropriate to begin vaccination with the use of one dose of the usual antigen content.


Nature 00445.txt

H2 or H3 because the current human population would have antibodies against them, she says.


Nature 00541.txt

and found that those born before 1918 were more likely to produce antibodies capable of neutralizing the swine flu virus. That protection is somewhat counterintuitive:

But it is still possible that the immune response elicited by one virus can offer protection against the other (see Old seasonal flu antibodies target swine flu virus). Oddly,

exposure to similar viruses that circulated from the 1920s to 1950s was not enough to elicit these antibodies a result that doesn't mesh with the lower infection rates among those who are over the age of 60

One possible explanation is that antibodies that are not able to fully neutralize a virus can


Nature 00584.txt

The monoclonal antibody gained recommendations from an advisory committee at the Food and Drug Administration on 14 august,


Nature 00954.txt

as both will test positive for antibodies against the virus. Cows also pass on antibodies to their offspring through their milk.


Nature 00972.txt

as both will test positive for antibodies against the virus. Cows also pass on antibodies to their offspring through their milk.


Nature 01436.txt

such as chickens and pigs, for antibodies that signal the presence of pathogens. Both methods put people at risk of exposure to the viruses.


Nature 01446.txt

the California-based drug company's treatment for osteoporosis. The monoclonal antibody will be used to treat postmenopausal women who have increased an risk of fractures,


Nature 01919.txt

which specializes in vaccines and antibody therapies. Crucell's board of directors unanimously supports the deal, and shareholders will vote on the matter on 8 february.


Nature 02660.txt

but in 2008 the team reported finding antibodies to them in Eidolon helvum fruit bats in Ghana, West Africa, indicating that these bats had been infected too1.

In a paper published on 22 september in Plos ONE, the team reports finding antibodies against members of the Henipavirus genus in 5%of 97 pigs studied.


Nature 02731.txt

Antibody offers hope for multiple sclerosis treatment: Nature Newsthe first drug to show signs of not just halting multiple sclerosis (MS),

in Amsterdam, found that 78%of patients treated with the monoclonal antibody alemtuzumab remained free from relapse after two years and half the relapse rate of one of the standard therapies,


Nature 02912.txt

Those given the experimental monoclonal antibody pertuzumab and the widely used drug trastuzumab (Herceptin), together with chemotherapy, gained an extra 6-month lull in disease progression compared with women receiving only chemotherapy and trastuzumab.

Both antibodies target the protein affected by HER2 mutations. See go. nature. com/hwxlbd for more.


Nature 03115.txt

BUSINESS Biosimilars rules Drug-makers keen to sell generic forms of branded biological drugs such as enzymes and antibodies were excited to finally see draft guidance on the matter emerge from the US Food and Drug


Nature 03383.txt

Researchers tested milk from dairy herds across England and Wales for antibodies against F. hepatica, an indication of infection,


Nature 03701.txt

Connecticut, said on 6 Â August that they would no longer work on the monoclonal antibody bapineuzumab. It binds a peptide, amyloid-Ã Â,


Nature 04147.txt

Discovery of goat facility adds to antibody provider's woesa herd of 841 goats has kicked up a stir for one of the world s largest antibody suppliers after US agricultural officials found the animals including 12

in poor health in an unreported antibody production facility owned by California-based Santa cruz Biotechnology."

In 2012, Santa cruz Biotechnology ranked as the second-largest supplier in the US$1. 6-billion global market for research antibodies, according to an international survey by The Scientist and market-research firm Frost & Sullivan

Neuroscientist Erik Ullian at the University of California, San francisco, says that the industry giant develops more hard-to-find antibodies for speciality applications than its rivals."

"Sometimes Santa cruz is the only option that we have for trying an antibody. But for years, the company has run foul of animal regulators.

and animal products by NIH-funded researchers exempts purchases of off-the-shelf antibodies. On 11 january, the Animal Welfare Institute petitioned the NIH director Francis Collins


Nature 04161.txt

The now-separate firm plans to expand the market for its blockbuster anti-inflammatory antibody Humira (adalimumab),


Nature 04643.txt

and pig antibodies.""What s hampering the research is that we don t have reagents, says Linda  Saif, a virologist at Ohio State university in Wooster.


Nature 04663.txt

The antibody-based drug, which targets the amyloid-Ã Â protein, will be tested in a large-scale phase III trial.


Nature 04715.txt

The animals responded by making antibodies that blocked that virus but aided infection with the swine flu H1n1,

In the study, a vaccine for H1n2 spurred pigs to produce antibodies that bound the cap and the stem of that virus s haemagglutinin.

But some of those antibodies also targeted the stem of H1n1 s haemagglutinin protein, helping that virus fuse to cell membranes.

The new study suggests that such vaccines could also produce antibodies that enhance the ability of some viruses to infect new hosts,


Nature 04765.txt

GM rice delivers antibodies against deadly rotavirusa strain of rice genetically engineered to protect against diarrhoeal disease could offer a cost-effective way to protect children in developing countries,

by adding an antibody to fight rotavirus originally found in llamas in the rice genome.

although the antibodies could also be ingested either in cooked rice or by drinking the water in

Previous clinical trials in Bangladesh have established already that the antibody arp1 can protect against rotavirus.

Llamas produce single-chain antibodies which have two important properties: one, they are very small

and can reach areas of the pathogen which otherwise might not be reached by other antibodies

Normal human antibodies are chained dual. If you eat it and it goes through the stomach,

and the fact that it is produced widely as a staple food make it a good vehicle for delivering the antibody.


Nature 05220.txt

when researching a vaccine against human immunodeficiency virus  1 (HIV-1) by spiking rabbit blood samples with antibodies.


popsci_2013 00669.txt

Well supposed adequate antibody titer levels are the measure but these have failed repeatedly to correlate with protection (meaning blood work on the few occasions it is checked will reveal antibodies from the vaccine present

but the person still'caught'the disease). In vaccinated people that still get sick that would imply an immune issue that failed to ward off a pathogen early

and thus major symptoms came forth even with vaccine antibodies present. And this happens every time an'outbreak'occurs somewhere (just like the above example.


popsci_2013 01282.txt

and inhibit the natural development of antibody production by the immune system. The complexity of the issue makes relevant comment difficult.


popsci_2013 02420.txt

The hollow virus works because its outside stimulates the immune system to create antibodies against it.


popsci_2013 03169.txt

You use the goats to produce all kinds of antibodies that you then extract and sell to biological researchers all over the world.

You are in fact one of the world's biggest suppliers of these antibodies--a true industry leader.

or a suspended license for their violations of animal welfare and for lying to the USDA but an even bigger problem (for Santa cruz Biotechnology) may come from the NIH who currently exempts off-the-shelf antibodies from the set of animal treatment rules that governs NIH-funded research.

They're extracting antibodies for use in research by other companies. Second it doesn't sound

They might produce a large percentage of the antibodies used in research --but that could be a pretty small market.


Popsci_2014 00293.txt

The doctors eventually learned that Immunoglobulin e (Ige) antibodies in their patients were reacting with a sugar in the drug called alpha-gal.

since nearly everyone produces these antibodies but not every patient reacted poorly to the drug.

They discovered that the Ige antibodies in their patients blood samples binded to the Lone Star tick extract;

meanwhile the same antibodies from people without the meat allergy did not glom onto the tick proteins.


ScienceDaily_2013 01957.txt

A history of allergies to airborne antigens was associated with a higher risk of hematologic malignancies.


ScienceDaily_2013 03224.txt

Five calves in the herds were tested for antibodies against this virus and then again six months later.

if at least one animal aged between 150-365 days was shown to have antibodies against the virus The young age of the animals tested would indicate that they probably were infected quite recently i e. during the course of the last year.


ScienceDaily_2013 03240.txt

We reviewed the role of serum Immunoglobulin g antibodies and the basophil activation assay in food allergy as well as the histology findings in the food allergy diagnosis said Dr. Carroccio.


ScienceDaily_2013 03972.txt

Such innate immune responses do not require prior immunization or the development of specific antibodies. By contrast during an adaptive immune response the immune system generates antibodies that recognize the invading pathogen or toxin;

this process makes it possible to vaccinate against infectious diseases. Adaptive immunity is usually a faster more specific and more effective form of defense than innate immunity.

In allergic reactions a type of antibody called Ige binds to the surface of mast cells and prompts them to initiate an adaptive immune response

when exposed to the antigen recognized by that Ige. The functions of Ige and mast cells are known mostly in the context of allergies said Thomas Marichal DVM Phd a postdoctoral scholar

and these antibodies because if they were just bad and deleterious they would have been eliminated. The researchers hypothesized that Ige might be required for protection against a lethal sting

and higher levels of Ige antibodies against the venom than control mice injected with a salt solution.

To determine whether Ige antibodies were required for this protection the team tested mice with three types of mutations:

It was the first time we could see a beneficial function for these Ige antibodies. Pre-immunization with a low dose of venom from the Russell's viper also protected mice from a higher dose of venom from this snake which is one of the big four species responsible for most snakebite


ScienceDaily_2013 04238.txt

It also provides support for inducing inhibitory factors in breast milk that might be even more protective such as antibodies that would completely protect babies from HIV infection in this setting.


ScienceDaily_2013 06581.txt

and she discovered that more than 70%of the adult birds had developed antibodies against Influenza a virus. The majority of the kittiwakes had antibodies against an influenza virus subtype typically found in gulls namely H16.

Ducks can become infected with influenza virus through consumption of surface water contaminated with faeces shed by virus infected birds.

and specific antibodies against H16 were found in the same two chickens. The chickens did not become ill


ScienceDaily_2013 08208.txt

But Herceptin is an antibody to the HER2 gene--it naturally seeks out this protein--so the research team used key parts of Herceptin to guide the nanodrug into HER2-positive cancer cells.

By attaching the new fusion antibody to the nanoplatform we were able to deliver Herceptin directly to HER2-positive cancer cells at the same time transporting IL-2 to the tumor site to stimulate the immune system.


ScienceDaily_2013 09811.txt

Newborn screening of umbilical cord blood for diabetes susceptibility in the human leukocyte antigen (HLA) region was performed at St joseph's Hospital in Denver

Our data suggest multiple foods/antigens play a role and that there is a complex relationship between the timing and type of infant food exposures and T1dm risk.


ScienceDaily_2013 11844.txt

The researchers demonstrated that GNVS can transport various therapeutic agents including anticancer drugs DNA/RNA and proteins such as antibodies.


ScienceDaily_2013 12328.txt

which contains high concentrations of nutrients and antibodies for the baby. During this period babies often lose weight


ScienceDaily_2013 12347.txt

The researchers then exposed some of these strains to antibodies provoked by the current H3 seasonal-flu vaccines.

As they predicted these antibodies were unable to recognize or attack these H3 strains. Of the 581 HA sequences six swine strains already contain the standard HA mutations necessary for human adaptation


ScienceDaily_2013 14267.txt

It steals membranes from the cell as it leaves the cell to cloak itself in this envelope that then protects it from antibodies.

but to wrap itself in a membrane to evade neutralizing antibodies and facilitate its spread within the host once it has infected a person said Lemon.

The vaccine one of the most effective in use was thought to elicit neutralizing antibodies that attack the virus in the blood.

While it was thought previously that vaccine-induced antibodies attacked the virus outside of the cell the new findings suggest antibodies may actually be able to restrict viral replication within a cell.


ScienceDaily_2013 16534.txt

They chose the first plant-derived anti-HIV monoclonal antibody to be tested in humans. It was isolated purified


ScienceDaily_2013 17449.txt

#Genetically modified tobacco plants produce antibodies to treat rabiessmoking tobacco might be bad for your health

In a new research report appearing in The FASEB Journal scientists produced a monoclonal antibody in transgenic tobacco plants that was shown to neutralize the rabies virus.

This new antibody works by preventing the virus from attaching to nerve endings around the bite site

Producing an inexpensive antibody in transgenic plants opens the prospect of adequate rabies prevention for low-income families in developing countries.

and colleagues humanized the sequences for the antibody so people could tolerate it. Then the antibody was produced using transgenic tobacco plants as an inexpensive production platform.

The antibody was purified from the plant leaves and characterized with regards to its protein and sugar composition.

The antibody was shown also to be active in neutralizing a broad panel of rabies viruses and the exact antibody docking site on the viral envelope was identified using certain chimeric rabies viruses.

Although treatable by antibodies if caught in time rabies is said bad news Gerald Weissmann M d. Editor-In-chief of The FASEB Journal.

This is especially true for people in the developing world where manufacturing costs lead to treatment shortages.

Being able to grow safe humanized antibodies in genetically modified tobacco should reduce costs to make treatments more accessible and save more lives.

Story Source: The above story is provided based on materials by Federation of American Societies for Experimental Biology.


ScienceDaily_2013 18381.txt

because milk enriched with the mother's antibodies helps ward off infection and gastrointestinal problems. The meaning of privacy might differ for mothers and the hospital.


ScienceDaily_2014 02090.txt

Mother's milk a source of protectionprevious studies by the research group showed that protective antibodies against porcine neonatal coccidiosis are transferred to the piglets through the sow's milk directly after birth.

Sows that had been exposed to the pathogen produced the respective antibodies from which the piglets could then benefit.

They deliberately infected sows with the parasites during gestation in order to increase the antibody levels in the maternal animals.

The aim was to supply the piglets with as many antibodies from the mother's milk during their first days of life as possible.

The more antibodies a sow transferred to its piglets the weaker the symptoms exhibited by the piglets.


ScienceDaily_2014 02314.txt

#Combining antibodies, iron nanoparticles and magnets steers stem cells to injured organsresearchers at the Cedars-Sinai Heart Institute infused antibody-studded iron nanoparticles into the bloodstream to treat

In an attempt to target healing stem cells to the site of the injury researchers coated iron nanoparticles with two kinds of antibodies proteins that recognize


ScienceDaily_2014 02420.txt

Next the research team coated the scaffold's vessels with an antibody designed to make them more sticky

Our cell seeding method combined with the antibody improves the attachment of cells to the vessel wall


ScienceDaily_2014 03414.txt

In the case of the potentially much more dangerous cow milk allergy however the body's immune system attacks milk proteins with its own Ige antibodies.

Th2 lymphocytes contribute in great measure to the production of Ige antibodies to milk proteins. Hence people develop an allergic reaction to milk.

As a consequence the production of Ige antibodies against the milk protein is stimulated. The patient gets sensitized


ScienceDaily_2014 03738.txt

and duration of antibody used for costimulation blockade to suppress T and B cell immune response in the hosts.

In several groups longer survival of transplants was observed with the use of anti-CD40 monoclonal antibodies

but the longest-surviving group was treated specifically with a high dose of recombinant mouse-rhesus chimeric antibody (clone 2c10r4).

In contrast use of an anti-CD40 monoclonal antibody generated in a mouse (clone 3a8) did not extend survival.

Anti-CD40 monoclonal antibodies also allow for faster recovery says Dr. Mohiuddin. No complications including infections were seen in the longest-survival group.


ScienceDaily_2014 04279.txt

They found that animals with strong antibody responses produced fewer offspring each year but also lived longer.


ScienceDaily_2014 04363.txt

The researchers also plan to develop the vaccine into the type of antibody serum therapy used in the first U s. recipients in a platform that could deliver at least 2000 doses of potentially lifesaving serum per month.

But for those patients who already have the disease antibody-based therapies could be the best treatment--it's a way to give the body's own defenses time to ramp up.

Dr. Schnell and his team have developed a vaccine that activates the immune system to produce large amounts of antibodies against three virus strains

In order to address this issue Dr. Schnell is working with another company with a novel method of producing antibodies en masse.

Although they do not confer the long-lasting immunity of a vaccine antibodies attach to virus particles

if needed those antibodies need to look human to the immune system. The experimental therapy that humanitarian aid workers Kent Brantly and Nancy Writebol received was purified based on a monoclonal antibodies from mice genetically engineered to produce humanlike antibodies against the Ebola virus.

However the company that produced the serum had limited a very quantity available. SAB Biotherapeutics is a company in South dakota with a small herd of cattle that can produce humanlike antibodies.

Together with SAB Dr. Schnell is applying for a grant that would allow the team to vaccinate the cows with his vaccine in order to produce large quantities of antibodies specific for the three viral strains.

The cows would have harvested their blood plasma every two weeks to produce 30-60 liters of serum every month from one animal--the equivalent of 2000 doses. The vaccinated cows would produce polyvalent antibodies--antibodies that can recognize many

different viral components--rather than the monoclonal antibodies administered to Brantly and Writebol. Polyvalent antibodies are more likely to remain effective

if the virus mutates. If money were no object we could have the first batch of serum ready for human testing in four to six months says Dr. Schnell.

Story Source: The above story is provided based on materials by Thomas Jefferson University. Note: Materials may be edited for content and length h


ScienceDaily_2014 04686.txt

Ma said frequent mutations to the cap help the virus avoid antibodies; this is the reason people need flu shots every year.


ScienceDaily_2014 05981.txt

and the limited use of bactericides would be part of such an integrated strategy the researchers said.


ScienceDaily_2014 06388.txt

Ultimately the best kind of immunization would be to increase the mucosal immune response antibodies secreted on the surfaces of the throat gastrointestinal tract


ScienceDaily_2014 06537.txt

when our immune system produces antibodies to destroy enemy molecules like those from bacteria and viruses.

In the case of milk allergies the antibodies are called Ige. Medical doctors can diagnose milk allergies by simply detecting an overproduction of Ige

First Ige antibodies from the patient's blood are isolated by interaction with magnetic beads that are coated with a different type of antibody.

The bead antibodies recognize and bind the patient's Ige antibodies. This takes place inside a long and narrow glass tube only 50 micrometers in diameter called a capillary.

The bound antibodies are flushed then out of the capillary and powerfully attached to the magnetic beads through a process called'crosslinking

'which keeps them from detaching. The beads with the patient's Ige are placed then again inside the capillary.

As the milk's proteins pass over the patient's Ige antibodies the ones that cause allergies are caught by them

The beads are washed then with a strong chemical that causes the allergy-inducing protein to dissociate from the patient's Ige antibodies.

and quantification of a patient's specific Ige antibodies or the laborious and resource-intensive diagnostic methods used currently.


ScienceDaily_2014 09167.txt

These findings prompted the researchers at the Institute for Parasitology to look for a way to increase the level of these antibodies in sows.

The ultimate goal was to provide the piglets with as much antibodies as possible via their mother's milk during the first few days of life.

Sows produce antibodies for their offspringto stimulate antibody production against Cystoisospora suis in sows researchers exposed pregnant sows to infectious stages (oocysts) of the parasite two weeks before parturition.

High concentrations of antibodies against the parasites are passed on to the piglets in the first few hours of life through their mother's milk where they enter the blood stream

and the intestines of the newborns who cannot yet produce their own antibodies. These maternal antibodies protect the piglets from infections in the first few weeks of life.

The higher the concentration of antibodies in the sow's milk the better protected her offspring are.

More antibodies mean less diarrheapiglets with milder symptoms showed higher concentrations of Iga in their blood.

These immunoglobulins are not just in the bloodstream they are primarily found on the surface of the mucous membranes including the intestines where they serve as a defence against pathogens.

Additional studies are required to identify the exact role played by the antibodies Schwarz explains. Protective milk as the basis for a vaccineresearchers found particularly high concentrations of Iga in the very first milk known as colostrum a highly nutritious milk all mammals ingest during the first days of life.


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