All Stories by Nathan Seppa
- Health & Medicine
Jarring Result: Extreme biking can hurt men’s fertility
Men who maintain grueling mountain-bicycling programs are apt to have lower sperm counts than nonbikers are.
- Health & Medicine
Enzyme Shortage May Lead to Lupus
Without the enzyme DNase I, mice are vulnerable to symptoms of lupus, a debilitating autoimmune disease.
- Health & Medicine
Protein may signal heart problems
A protein already linked to inflammation is also a strong predictor of heart problems.
- Health & Medicine
Predisposed to Trouble: Gene variants implicated in stomach cancer
A person's risk of stomach cancer can depend on the genetics of both the individual and the bacterium Helicobacter pylori.
- Health & Medicine
Virus Stopper: Vaccine could prevent most cervical cancers
A vaccine fashioned from a protein found on human papillomavirus-16 protects women from long-term viral infections that can lead to cervical cancer.
- Health & Medicine
Gene may keep breast cancer at bay
Scientists have identified a gene that seems to protect against some common breast cancers.
- Health & Medicine
New inner ear hair cells grow in rat tissue
Using a gene known to control hair-cell growth, researchers have grown hair cells in tissue taken from newborn rats' cochleas, raising hopes that inner ear damage may someday be reversible.
- Health & Medicine
Attack of the Clones: Immune cells single out melanoma tumors
Scientists can extract immune system cells that recognize tumor cells from people with melanoma, culture the rare cells to greatly increase their number, and inject them into the patients, sometimes putting the brakes on cancer.
- Health & Medicine
Immune protein may stall HIV
People who have HIV but don't progress to AIDS make extra perforin, a protein that helps kill infected cells.
- Health & Medicine
Coconspirator? Genital herpes linked to cervical cancer
Having a genital herpes infection doubles the risk of cervical cancer among women who have human papillomavirus.
- Health & Medicine
Drug combination may fight breast cancer
Retinoic acid, when combined with a drug that reverses a process called methylation in breast tumor cells, may awaken a key cancer-fighting gene.
- Health & Medicine
Hidden Effect? Hypertension risk linked to common, over-the-counter pain relievers
Women who take ibuprofen or acetaminophen for headaches or inflammation boost their chances of developing high blood pressure.
