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Cells from human embryos can be transformed into heart cells or insulin-secreting cells.
Fueled only by promising studies of cells, a California research team has invited controversy by beginning to give a little-used malaria drug to patients who have the human version of mad cow disease.
Widely publicized concerns about vaccination leading to autism, multiple sclerosis, and diabetes have not been borne out by research.
Two compounds stop menstruation in monkeys, suggesting that similar drugs might someday enable women to bypass monthly bleeding.
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The protein Ki-67, sometimes present on tissue lining the lungs, may act as a warning sign of lung cancer risk for ex-smokers.
Expectant mothers who've already given birth by cesarean section put themselves at increased risk of uterine rupture by trying vaginal birth.
The inflammatory enzyme Cox-2 is present in stomach tumors, suggesting that drugs that inhibit the enzyme might help supress tumor formation.
A genetically engineered drug that fuses an antibody to a toxin attacks cancerous cells in hairy-cell leukemia.
Taking dietary antioxidant supplements along with certain cholesterol-regulating drugs may diminish the effectiveness of those drugs in boosting the so-called good cholesterol.
Mice inoculated with a component of sand fly saliva develop immunity to Leishmania, a protozoan that infects hundreds of thousands of people in the tropics each year.
In women with early-stage breast cancer, malfunctioning ovaries and significant bone loss can occur within 6 months of chemotherapy treatment.
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