Tag: "immune" at biology news
Discovery Of Plant-Like Metabolic Pathway In Common Parasites Supplies New Targets For Therapy
... cause devastating problemsfor those with weakened immune
systems or when transmitted from mother to unbornc...m : causes severe diarrhea in those with weakened immune
systems andis a common infection in AIDS patients. A recent Cryptosporidiosis outbreak was traced t...
Boosting Immune Response Against HIV-1 Key To Controlling Infection, Say University Of Pittsburgh Researchers
...s-killing capability of asmall but potent group of immune
cells, CD8 T cells, also referred to as killerT ce...-HIV-1 effect,researchers treated another group of immune
cells called dendritic cells (DCs)with HIV-1 proteins and interleukin-12 (IL-12). Exposing D...
HIV-1 Levels In Semen Don't Correspond To Viral Levels In Blood, Say Pitt
Researchers In A Report At 12th World AIDS Conference
...inal virus. CD4 T cells, the initiators of immune
responses against HIV-1 and otherforeign substances in the body, are the primary targets of HIV-1. A change inthe number or activity of these cells would explain the discrepancy in virallevels between the blood and semen in HIV-infected men. Howeve...
Fauci To Present New Insights Into HIV Latency At 12th World AIDS Conference
...ted individual (the"host"), notably the network of immune
signalling molecules (especiallycytokines and CC-chemokines) involved in the normal immune
response. "Pro-inflammatory" cytokines such as IL-2, IL-6 and TNF-alpha, boost replicationof certa...
Pharmacologists Discover Linkage Of Key Cell Switches
...art inactivating T-cells, the warrior cells of the immune
system that patrol the bodyseeking invaders such a...gene transcription in theprocess of turning on the immune
system's T-cells. "We believe that we will find a general mechanism in cells that containCaM...
Summer Science: Where Have All The Honeybees Gone? UD 'Bee Guy' Asks Why--From
America To The Amazon
... Do theyspread viral infection or weaken the bees' immune
system, allowing otherdiseases to kill the colony? Do mite-infected bees have lower cold tolerance?This knowledge could help us to develop new control strategies or to identifydesirable traits to select for in breeding programs. Other studies should ...
Scientists Make Progress Toward Gene Therapy For HIV Infection
...m a novel study to determine whethervirus-fighting immune
cells can be genetically altered to boost the immu...for future efforts totreat HIV by manipulating the immune
system," says NIAID Director Anthony S.Fauci, M.D. The NIAID scientists studied 30 sets of identical...
The Perils Of Discontinuing Therapy: Without HAART, Cytokines Stimulate HIV From Latently Infected Cells
...Rather, the virus persists in safe havenswhere the immune
system cannot detect it. These hiding places includenon-dividing, resting CD4+ T cells in the blood and lymph nodes, which canharbor HIV DNA for prolonged periods while remaining invisible to the immunesystem. In an HIV-infected person's body, 1 to ...
Inter-Element Recombination Between Retrotransposons May Be Strategy For
Evolution Of Viruses Like HIV
... artists ofthe microbial world and outrun both the immune
system and medicines designed tofight them. And im... ableto evolve so rapidly and thus outrun the host immune
system. "Understanding how new retroviruses, such as HIV, evolve will move uscloser to being...
Scientists Identify New Gene That Controls Sleep/Wake Cycle
...ural biology, of human genetics, of immunology and immune
diseases, ofsensory neurosciences and of the links between physics and biology....
Wistar Scientist To Speak At Toxicology Forum On Effects Of Conjugated Linoleic Acid On Preventing And Reversing Atherosclerosis
...olecules likeinterleukin-12, which are helping the immune
system fight bacteria, parasites,viruses and cancer; and location of genes that contribute to the development ofdiseases like breast, lung and prostate cancer. Wistar is a National CancerInstitute Cancer Center....
University Of Pittsburgh Reports Novel Ways To Improve Transplant Acceptance At
Transplantation Society Meeting
... 12-17 in Montreal. Known asthe pacemakers of the immune
system, DCs are specialized white blood cells thatregulate the activity of other immune
cells within the body. In the case oforgan transplantation, investigators are harnessing DCs to tea...
Syphilis Genome Sequence Offers Clues To Better Diagnosis, Prevention And Treatment
...oreof these surface components might stimulate the immune
system to respond to aninvasion of T. pallidum when an uninfected person is exposed to syphilis. "The genome sequence represents an encyclopedia of information on this elusivebacterium," says Dr. Weinstock. "We can now figure out ways to disarm itsd...
Researchers Identify A Protein Critical For T Cell Development And Activation
...zzle of immunesytem activation. Stimulation of the immune
systeminvolves more than a binary on-off response....and activation ofT cells, an important part of the immune
system. This finding is reported in theJuly 17 issue of Science magazine. The finding provides scien...
Pool Of Latently Infected, "Resting" Cells Established Early In HIV Infection
...s Diseases(NIAID). The pool of latently infected immune
system cells is established even if apatient is tr...d be more likely to ultimately becontrolled by the immune
defenses of the patient," adds Dr. Fauci. The NIAID investigators and others are pursuing studies ...
Spices May Reduce Escherichia Coli O157:H7 In Meat
...ly low infectious dose. In peoplewith compromised immune
systems, for example, fewer than 10 cells may causeillness. Spices, however, may potentially add another margin of safety toproper food handling and cooking. The antimicrobial properties of spices have been noted in severalstudies, includi...
Reengineered Poliovirus Proves Effective As Vector For Prompting Key Immune
Response In A Study With Mice
...d vehiclecould prompt the cell-mediated arm of the immune
system into action, issuing aresponse from CD8 T-c... prompt a CD8 T-cell response, all 40 of them were immune
to the cancer.Evidence suggests, said Andino, that being able to incite both arms of theimmune syste...
Security Code Helps Immune Cells Attack Foe And Spare Self
..., checking for harmful microbes. Otherparts of the immune
system blow an invader's cover by posting fragment...-cell dispose of a virus-infectedcell or stimulate immune
cells that manufacture antibodies. Helper cells use receptors on their surface to read anti...
Allergy And Asthma-Exaceberating Mites, Molds And Pollens On The Rise Due To El Niño . . . La Niña
... medications, allergy injections canhelp teach the immune
system not to be allergic. These injections are usuallygiven once a week for six months. If the patient is improving, the injectionsare reduced to once a month for two to three years. INTERVIEWOPPORTUNITY: Zab Mohsenifar, M.D., Chair, Pulmonary and C...
Social Stress Causes Dormant Herpes Virus To Resurface In Mice
... significantly suppress the immune
system and increase the incidence of infectious diseases. "When a new boss comes in, people worry if their position will be the same, if the order of dominance will change," ...
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