2,456 results
2,456 results for: mutations
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Genetic Clue to Aging? Mutation causes early-aging syndrome
A gene defect that causes accelerated aging may provide insight into normal aging.
- Anthropology
Cannibalism’s DNA Trail: Gene may signal ancient prion-disease outbreaks
Cannibalism among prehistoric humans may have left lasting genetic marks.
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Autism Advance: Mutated genes disrupt nerve cell proteins
Two gene mutations that cause autism suggest that nerve cell connections called synapses are key to the disorder.
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Dad’s Hidden Influence
Fathers share more than genes with their children. Where a man works, the chemicals he is exposed to, and even his age can leave a medical legacy for future children.
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Micromanagers
Some scientists believe the human brain is the creation of RNA. Only noncoding RNAs are plentiful, and powerful enough to handle the billions of complex interactions the brain faces every day.
- Chemistry
Energy in Motion
The molecular machines of living cells harvest energy out of randomness, and scientists are learning how to do the same with artificial molecules.
- Health & Medicine
Weighty Evidence
Connections between the family of insulin hormones and cancer have been suspected for more than 2 decades, and today, drug companies are testing anticancer drugs based on the actions of an insulin cousin.
- Humans
Science News of the Year 2007
A review of important scientific achievements reported in Science News during the past year.
- Health & Medicine
Mother Knows All
Fragments of a fetus' genetic material that leak into a pregnant woman's bloodstream reveal details of early fetal development.
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Dolly Was Lucky
Scientists studying the data on animal cloning argue that cloning a person would be unsafe.
- Health & Medicine
Immunity’s Eyes
Proteins called toll-like receptors allow human immune cells to detect microbes.
- Health & Medicine
Vaccine Verity
Widely publicized concerns about vaccination leading to autism, multiple sclerosis, and diabetes have not been borne out by research.
