T-Cell Memory Finding May Provide Key To Cancer, AIDS Vaccines
...the March 12 issue of the journal Science that the cells that are crucialplayers for any vaccine against HIV-infected or cancerous cells aredistressingly slow learners. The problem, the researchers demonstrate, is that it takes several g......pted. "The connection between these brain cells and the circadian cycle isclear," said Charles All...search shows clearly that orphanin acts on all the cells in the SCN."Everywhere we look, orphanin directly inhibits cells," said Grandy. "It turnsthem off. I......ests have a common goal -- the collection of fetal cells sothat their chromosomes can be analyzed for defec...r in terms oftiming, the location from which fetal cells are withdrawn, and often theapproach itself. Amniocentesis has traditionally been performed at 15 to...Novel Biological Interaction Found To Explain Blood Vessel Growth To Tumors
... by depleting the chemical energythat blood vessel cells need to grow. To do this, angiostatin latches on t... on the surface ofendothelial cells, which are the cells that line blood vessels. In fact, ATPsynthase has not been known to exist outside of a cell body. It...Lo-Cal Diet Slows Prostate Cancer In Animals, New Research Finds
... In the first set of experiments, malignant cells froma form of rat prostat...ubstance producedby tumor cells that stimulates blood vessel growth. In the third set of experiments, the r...New Chemicals Could Lead To First Bone Growth Pill
...humans, bone undergoes continuous remodeling, with cells called osteoclasts"eatingup"old bone as osteoblast cells replace it with new bone. Osteoporosis, whichaffectssome 15-20 million Americans, is caused by incr...New Drug For Recurrent Brain Tumors In Tests At UNC
...eaction to the drug. "It's been suggested that the cells over-express the PDGF receptor and theystimulate themselves to grow. It is as if they're pouring gas on their ownfire," Ewend says. "By blocking or inhibiting that receptor, we might inhibitthe cell's ability to grow." The drug is administered intrav...Tip Sheet: Citrus Limonoids Versus Cancer, Cholesterol And Insects
...imals andinhibit the spread of human breast cancer cells in culture. Other studiesindicate limonoids could... inhibitors of proliferation of humanbreast cancer cells in culture, according to this paper. Tests with mice arecurrently underway. (University of Western ...Should Doctors Urge Patients To Take Breaks From Their Drugs?
...oxic T lymphocyte (CTL) response.These white blood cells kill other cells that are infected by a virus, and soare at the vanguard of the body's battle against HIV. Tr...Penn Researchers Find Chemoembolization Effective For Liver Tumors
...ks bydelivering chemotherapy directly to cancerous cells with the useof a non-surgical, interventional cath...iled. "Chemoembolization hones in on the cancerous cells thathave spread to the liver and avoids exposing the rest of the bodyto chemotherapy's toxic effects...Can We Prevent Hearing Loss In Elderly Women?
...pleswere drawn from each participant and red blood cells and serum were evaluated for vitamin B-12 and folate levels. Results showed that womenwith impaired hearing had 38% lower mean serum vitamin B-12, 31% lower mean red cell folate, and 25% lower mean serum folate thanwomen with normal hearing. The inve...Researchers Uncover Clues About Gateway To The Brain
...into the brain of theprotease inhibitors that kill cells infected with HIV, for example. Some doctorsthink ...r images originally designedto highlight cancerous cells also revealed the tissue to be a potential locationfor the p-glycoprotein (Pgp), a known transporter...Antibiotics Reduce Inflammation In Heart Disease But Effect On Heart Attacks Remains Unproven
...s IL-1 and IL-6,molecules secreted by inflammatory cells in the blood vessels and associatedwith the formation and progression of the fat-laden plaque that characterizesatherosclerosis. "Lower inflammatory marker levels were evident at six months, but not at threemonths, which lead researchers to hope that...New Book Says Cross-Train Your Brain To Increase Mental Function
...ity for reorganization." Basically, brain cells learn by making new connections with one another,growing tendril-like connections called dendrites, said Katz and Rubin, seniorcreative supervisor at K2 Design in New York City and the author of 60 Ways toRelieve Stress in 60 Seconds. These dendrites......rushed ends of severed central andperipheral nerve cells so that the repaired cells again conduct electricalsignals through the severed area within seconds to minutes after they arerej...Trial Begins For First Artificial Liver Device Using Human Cells
...tingof the first artificial liver device that uses cells from humans rather thanfrom pigs. The ELAD (Extra...evice. "Several previous devicescontaining liver cells from pigs have produced encouraging results," saidMichael Millis, M.D., associate professor of surge...New Research Points The Way To Restoring Noise-Induced Hearing Loss In Mammals, Including Humans
Damage to the sensory hair cells in the inner ear is the most frequentcause of perm...ge inflicted by loud noise or other causes.Support cells are located in the sensory epithelium (an area called the organ ofCorti on the surface of the inner ...UF Researcher Explores Complex Relationship Between Smoking And Fertility
...ke, benzo(a)pyrene,actuallyinhibited the growth of cells that could migrate and develop intoendometriosis. "But if the chemical has the same inhibitory effect on the growth ofnormal uterine tissue, this would not be favorable for establishingpregnancy," said Shiverick, noting that she has not yet c...Stress And Surgery May Increase Development Of Cancerous Tumors
...killer (NK) cells, a sub-population of white blood cells that seek out and killcertain tumor andvirally infected cells. In a study using animal models, natural killer cellactivity was suppressedby physical stress or surgery, resulting in a significant increase in tumordevelopment. Thesefindings suggest tha...