News tagged with death
(Medical Xpress)—A research team, led by Jeremy Barr, a biology post-doctoral fellow, unveils a new immune system that protects humans and animals from infection.
Immunology 21 hours ago | 4.7 / 5 (19) | 8 |
Study IDs key protein for cell death, offers way to kill cancer cells by forcing them into programmed-death pathway
When cells suffer too much DNA damage, they are usually forced to undergo programmed cell death, or apoptosis. However, cancer cells often ignore these signals, flourishing even after chemotherapy drugs have ...
Genetics May 14, 2013 | 5 / 5 (9) | 0 |
Researchers have pinpointed a catalytic trigger for the onset of Alzheimer's disease – when the fundamental structure of a protein molecule changes to cause a chain reaction that leads to the death of neurons ...
Alzheimer's disease & dementia May 20, 2013 | 5 / 5 (3) | 0 |
(AP)—Twenty-three youths have died in the past nine days at initiation ceremonies that include circumcisions and survival tests, South African police said Friday.
Diseases, Conditions, Syndromes May 17, 2013 | 5 / 5 (2) | 4
One in ten South Africans is HIV positive but AIDS-related deaths are falling as ramped-up treatment begins to have an impact, the country's official statistics agency said Tuesday.
HIV & AIDS May 14, 2013 | 5 / 5 (1) | 0
People with strokes caused by blood clots fared better in hospitals participating in the Get With The Guidelines-Stroke program according to a study presented at the American Heart Association's Quality of Care and Outcomes ...
Cardiology May 16, 2013 | 5 / 5 (1) | 0
Depressed cancer survivors are twice as likely to die prematurely than those who do not suffer from depression, irrespective of the cancer site. That's according to a new study, by Floortje Mols and colleagues, from Tilburg ...
Cancer May 16, 2013 | 5 / 5 (1) | 0
Scientists investigating the interaction of a group of proteins in the brain responsible for protecting nerve cells from damage have identified a new target that could increase cell survival.
Medical research May 17, 2013 | 5 / 5 (1) | 0
Bed sharing with parents is linked to a fivefold increased risk of sudden infant death syndrome (SIDS), even when the parents are non-smokers and the mother has not been drinking alcohol and does not use illegal drugs, according ...
Health 21 hours ago | 1.3 / 5 (3) | 0
Death is the permanent termination of the biological functions that define a living organism. It refers to both a particular event and to the condition that results thereby. The true nature of the latter has for millennia been a central concern of the world's religious traditions and of philosophical enquiry. Many religions maintain faith in either some kind of afterlife or reincarnation. The effect of physical death on any possible mind or soul remains for many an open question.
Animals almost without exception (see hydra) die in due course from senescence. Intervening phenomena which commonly bring death earlier include malnutrition, predation, disease, accidents resulting in terminal physical injury, or, in extreme circumstances, grave ecosystem disruption. Intentional human activity causing death includes suicide, homicide, and war. Roughly 150,000 people die each day across the globe. Death in the natural world can also occur as an indirect result of human activity: an increasing cause of species depletion in recent times has been destruction of ecological systems as a consequence of the widening spread of industrial technology.
Death in this context is now seen as less an event than a process: conditions once considered indicative of death are now reversible. Where in the process a dividing line is drawn between life and death depends on factors beyond the presence or absence of vital signs. In general, clinical death is neither necessary nor sufficient for a determination of legal death. A patient with working heart and lungs determined to be brain dead can be pronounced legally dead without clinical death occurring. Precise medical definition of death, in other words, becomes more problematic, paradoxically, as scientific knowledge and technology advance.
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