New Vaccine Provides Protection From HIV In Monkeys
...ightoff viruses and other invading microbes. This occurs while the intruders arestill in the blood and lymph systems, before they can invade individual cells inthe body. The second line of defense is cellular immunity, where T lymphocytesrecognize when host cells have become infected and destroy them. T ......ified by screeningtests, the authors explain. This occurs when plasma is collected in donors whowere recently infected with HIV. To eliminate the risk of transmission fromthese donations, blood plasma products are heat treated. There have been nocases of HIV transmission through blood plasma since heat trea......e Presence of Labor." Nitric oxide that naturally occurs in the feto-placental circulation and theuterus contributes to vascular and uterine functions during pregnancy and at thetime of birth. Nitric oxide (NO) levels may decrease with advancing gestationbut the levels at various gestational ages have not ......hat it is involved in cell responses todamage that occurs in heart attack, stroke and neurodegenerative diseases andpossibly in the development of cancer." When the DNA in a cell is damaged, a complex set of cellular signalingpathways begins. These pathways can lead to repair of the damage, program...New Type Of Artificial Surfactant Shows Promise In Treating Lung Disease
... said. In newborns, lung tissue damage sometimes occurs during the birth process whenmeconium--fetal stool--in the amniotic fluid is inadvertently inhaled. Inadults, tissue damage is associated with near-drowning, major trauma, pulmonaryinfection, complications related to cardiac surgery, and accidental ......currently part of a diabetic's dailylife. Diabetes occurs when the body's cells are unable to absorb enough ...se glucose. This cascade ofevents doesn't occur-or occurs poorly-in diabetics, either because their bodiesdon't produce insulin (type I diabetes), or because ...Immunex Advances CD40 Ligand To Phase II Clinical Trial In People With Metastatic Kidney Cancer
...a almost twiceas often as women are and it usually occurs between the ages of 50-70 years. CD40L is a protein primarily expressed on the surface of activated CD4+T cells. Its receptor, CD40, is expressed on B cells, antigen presenting cellssuch as dendritic cells, macrophages and on some other norm...Jefferson Scientists Show Tumor Characteristics May Help Explain Tumor Biology And Prognosis
...cular machinery that fixes the cell when DNAdamage occurs in repetitive DNA sequences. "MSI presence can be used as a pretest for HNPCC," says Dr. Boman. "Manyindividuals in the general population may have MSI, but the key is how to pickthem up. You need family history and other factors to be able t...New book on osteoporosis covers preventing and treating 'The Aging Disease' in consumer language
...obably a better description." "Bone weakening occurs because there is a significant change in thestructure of bone and loss of bone mass. Through a complicated process calledthe bone remodeling cycle, bone constantly is being created and maintainedthroughout life. As we age, this process changes and ......in five years oftransplantation, chronic rejection occurs in about 15 to 20 percent of allpediatric heart recipients and is the leading cause of death. "Animal studies to date gave us every indication that the time was right for ahuman trial, and we have proven the procedure is safe and feasible. Time wil...Abgenix Reports Positive Survival Data From A Phase II Trial Of ABX-CBL In Graft Versus Host Disease
...is a life threatening complication that frequently occurs following anallogeneic BMT. BMTs are used in the treatment of patients with end stageleukemia, certain other serious cancers and immune system disorders. Anallogeneic BMT procedure involves transferring marrow, the graft, from a healthyperson into ...Children Benefit Most From Sun Safety Interventions
... an estimated 80 percentof total lifetime exposure occurs during childhood, according to a team ofUniversity of Hawaii and Harvard scientists. The researchers studied a multi-ethnic group of 756 children in Hawaii aged sixto eight, their parents, and 176 members of outdoor recreation program staffs. The s......ruction." Acute colonic pseudo-obstruction occurs in some hospitalized patientsfollowing surgery or severe medical illness. The condition is caused by a lossof normal motility or spontaneous bowel action. Also called Ogilvie's syndrome,it causes a severely distended colon (large intestine). ......ses the possibility that even afterunstable angina occurs and the bells go off, heart attack can be prevented withmedical therapy." The drug, abciximab, is a blood-thinner. It keeps blood particles known asplatelets from clumping and forming clots that block blood flow, leading to aheart attack or stroke. ...Angina sufferers find significant relief with noninvasive technique
... device times the counterpulsation wave so that it occurs right during theheart's relaxation phase, giving a surge of blood back to the heart that itotherwise would not be able to develop. The thought is, if you do this over andover, patients would be able to achieve improved blood flow." The research team ...Early stroke treatment with t-PA has long-lasting benefit, according to NEJM report
...months afterstroke. Stroke or brain attack occurs when parts of the brain become starvedfor blood. ...mic stroke, which comprises 85 percent of strokes, occurs whena blood vessel in the brain becomes blocked by atherosclerosis or a clot. Hemorrhagic stroke is ...UMass researchers teaching computers to interpret MRIs
... of the division of neurology at Baystate. Astroke occurs when an artery delivering blood to the brain becomes clogged orruptures. "When a stroke occurs, the blood supply is disrupted, and brain cellsare starved of oxygen, causing tissue death in the area. The effects of a strokemay be slight or severe, tem...Novel drug therapy tackles third 'pathway' causing congestive heart failure
...ideeffects from the drug. Congestive heart failure occurs when the heart fails to function as efficientlyas it should and can't pump enough blood to meet the body's needs. It can bethe result of a heart attack, high blood pressure, a congenital defect in theheart, or an infection or defect in a heart valve......rprise sleep paralysis - an inability to move that occurs at sleep onset or uponawakening hypnagogic hallucinations - vivid, realistic and often frightening dream-likeexperiences when first falling asleep or upon awakening disruptions of normal nighttime sleep "automatic behavior" - performing familiar or r...