منابع مشابه
Smoking and skin aging in identical twins.
BACKGROUND A twin pair can provide a rare opportunity to control for genetic susceptibility and exposure variables, which often serve as major confounders in population-based studies on the relationship between smoking and skin aging. OBSERVATIONS We describe a unique twin pair who spent not only their first 2 decades of life together but also in their later decades had the same type of job a...
متن کاملAging and epigenetic drift: a vicious cycle.
The term epigenetics refers to stable patterns of gene expression that are seen during differentiation or X chromosome inactivation and are not dependent on dynamic changes in coding DNA. These gene expression states are encoded in the epigenome - a collection of marks on DNA or on histone tails that are established during embryogenesis. Genome-wide studies in aging cells and tissues have uncov...
متن کاملNarcolepsy in identical twins.
Narcolepsy has been observed in chronic encephalitis, cerebral arteriosclerosis, brain tumour, and following trauma, but when these cases are excluded there remains a group without demonstrable brain pathology. The existence of this idiopathic group has been a controversial subject. Among the more impressive evidence is that suggesting a hereditary factor in idiopathic narcolepsy. To date this ...
متن کامل[Sarcoidosis in identical twins].
M.R.C.S., F.R.S., and R. B. THOMPSON, M.D., M.R.C.P. .................................................... 605 Fulminating Staphylococcal Pneumonia Associated with Influenza Virus C C. S. DARKE, M.D., M.R.C.P., P. H. WATKINS, B.M., and J. E. M. WHITEHEAD, M.B., DiP.BaCt. ..... ......... 606 Protoveratrine A in Treatment of Hypertension IAN R. GRAY, M.D., M.R.C.P., and NEIL A. J. HAMER, M.B., M.R...
متن کاملIdentical atherosclerotic lesions in identical twins.
In 1997, a 55-year-old man underwent percutaneous coronary angioplasty (PTCA) of a lesion in the middle segment of the left anterior descending coronary artery (LAD) (Figure, A). He subsequently informed his cardiologist that his twin brother had also been treated successfully with PTCA at another hospital for stenosis of the LAD. The cineangiographic film of the twin brother was retrieved (Jac...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2005
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.0504743102