Nathan Seppa
Biomedical Writer (retired September 2015)
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All Stories by Nathan Seppa
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Health & Medicine
HIV variant might help vaccine search
Scientists have discovered an unusual HIV protein in a Kenyan woman that makes the virus vulnerable to antibodies.
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Health & Medicine
Sleep disruption and glucose processing
Shallow sleep can depress the body's ability to process glucose efficiently.
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Health & Medicine
Down syndrome’s anti-tumor effect
The chromosomal abnormality that causes Down syndrome might protect against some solid tumors.
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Health & Medicine
New Task: Malaria drug might inhibit some cancers
The antimalarial drug chloroquine may prevent some cancers.
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Health & Medicine
Unseen Risk: Lifestyle, physical problems may underlie psoriasis link to early mortality
Severe psoriasis knocks as many years off a person's expected life span as high blood pressure.
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New clue to Down syndrome, leukemia link
One-fifth of people with Down syndrome who also have acute lymphocytic leukemia harbor a mutation in their JAK2 gene.
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Health & Medicine
Immune cells to fight leukemia
A cancer vaccine against leukemia helps some patients avoid a relapse for months or years, but only if given early in the course of the disease or when a patient is in remission.
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Health & Medicine
In search of safer marrow transplants
A synthetic antibody called ACK2 that targets certain bone marrow cells may make marrow transplants a possibility for people with severe autoimmune disease.
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Health & Medicine
Novel fused protein quells inflammation
A new compound called GIFT-15, made from the fusion of two proteins, stops inflammation in mice.
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Macho pheromones rile fellows
Pheromones that induce aggression in other male mice are found in the major urinary protein complex in the animals' urine.
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Health & Medicine
Angiogenesis Factors: Tracking down the suspects in blood vessel growth near tumors
Tumors enlist certain bone marrow cells in efforts to grow new blood vessels for self-nourishment.
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Health & Medicine
Diabetes drug shows new potential
Exendin-4 (exenatide) might complement a drug called anti-CD3 monoclonal antibody in reversing type 1 diabetes, a study in mice shows.