Cigarettes leave toxins on surfaces that may endanger prenatal and postnatal infants Stepping outside to smoke a cigarette might not be enough to safeguard the lungs and lifestyle of a pregnant woman’s unborn child, relating to a new study in the American Journal of Physiology. The study, by researchers at the Los Angeles Biomedical Study Institute at Harbor-UCLA INFIRMARY , discovered prenatal contact with toxic components of a newly recognized category of tobacco smoke-known as ‘thirdhand smoke cigarettes’-can have as severe or a far more negative impact on an infants’ lung development as postnatal or childhood contact with smoke.The DNA after that can't fix itself and relies instead on more error-prone means of repairing that sometimes function and sometimes don't. If it generally does not work, more genetic abnormalities arise and cancer develops. Many BRCA2 and BRCA1 cancers are breasts and ovarian cancers, but a BRCA2 mutation can also be associated with a wider variance of cancers including melanoma, pancreatic cancer, prostate malignancy, and more rarely, uterine and gastric cancers. The BRCA gene is certainly therefore very important. The mutation could be what is known as a germline mutation, where every cell in your body contains that mutation, or it may be a somatic mutation, where the mutation is found within malignancy cells rather than in your skin or blood cells, for instance.

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