| D011643 |
Publishing |
"The business or profession of the commercial production and issuance of literature" (Webster's 3d). It includes the publisher, publication processes, editing and editors. Production may be by conventional printing methods or by electronic publishing. |
Electronic Publishing,Publishing, Electronic,Electronic Publishings,Publishings, Electronic |
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| D006801 |
Humans |
Members of the species Homo sapiens. |
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man |
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| D000328 |
Adult |
A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. |
Adults |
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| D012621 |
Seasons |
Divisions of the year according to some regularly recurrent phenomena usually astronomical or climatic. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) |
Seasonal Variation,Season,Seasonal Variations,Variation, Seasonal,Variations, Seasonal |
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| D014429 |
Twins, Dizygotic |
Two offspring from the same PREGNANCY. They are from two OVA, fertilized at about the same time by two SPERMATOZOA. Such twins are genetically distinct and can be of different sexes. |
Twins, Fraternal,Dizygotic Twin,Dizygotic Twins,Fraternal Twin,Fraternal Twins,Twin, Dizygotic,Twin, Fraternal |
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| D014430 |
Twins, Monozygotic |
Two off-spring from the same PREGNANCY. They are from a single fertilized OVUM that split into two EMBRYOS. Such twins are usually genetically identical and of the same sex. |
Twins, Identical,Identical Twin,Identical Twins,Monozygotic Twin,Monozygotic Twins,Twin, Identical,Twin, Monozygotic |
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| D014807 |
Vitamin D |
A vitamin that includes both CHOLECALCIFEROLS and ERGOCALCIFEROLS, which have the common effect of preventing or curing RICKETS in animals. It can also be viewed as a hormone since it can be formed in SKIN by action of ULTRAVIOLET RAYS upon the precursors, 7-dehydrocholesterol and ERGOSTEROL, and acts on VITAMIN D RECEPTORS to regulate CALCIUM in opposition to PARATHYROID HORMONE. |
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| D015090 |
25-Hydroxyvitamin D3 1-alpha-Hydroxylase |
A mitochondrial cytochrome P450 enzyme that catalyzes the 1-alpha-hydroxylation of 25-hydroxyvitamin D3 (also known as 25-hydroxycholecalciferol) in the presence of molecular oxygen and NADPH-FERRIHEMOPROTEIN REDUCTASE. This enzyme, encoded by CYP27B1 gene, converts 25-hydroxyvitamin D3 to 1-alpha,25-dihydroxyvitamin D3 which is the active form of VITAMIN D in regulating bone growth and calcium metabolism. This enzyme is also active on plant 25-hydroxyvitamin D2 (ergocalciferol). |
25-Hydroxycholecalciferol 1-Hydroxylase,CYP27B1,Calcidiol 1-Monooxygenase,Cytochrome P-450 CYP27B1,25-Hydroxycholecalciferol-1-Hydroxylase,25-Hydroxyergocalciferol 1-alpha-Hydroxylase,25-Hydroxyvitamin D 1-alpha-Hydroxylase,25-Hydroxyvitamin D(3) 1 alpha-Hydroxylase,25-Hydroxyvitamin D2 1-hydroxylase,1-alpha-Hydroxylase, 25-Hydroxyergocalciferol,1-alpha-Hydroxylase, 25-Hydroxyvitamin D,1-hydroxylase, 25-Hydroxyvitamin D2,25 Hydroxycholecalciferol 1 Hydroxylase,25 Hydroxyergocalciferol 1 alpha Hydroxylase,25 Hydroxyvitamin D 1 alpha Hydroxylase,25 Hydroxyvitamin D2 1 hydroxylase,25 Hydroxyvitamin D3 1 alpha Hydroxylase,Calcidiol 1 Monooxygenase,Cytochrome P 450 CYP27B1 |
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| D018433 |
Twin Studies as Topic |
Works about methods of detecting genetic etiology in human traits. The basic premise of twin studies is that monozygotic twins carry identical genes, while zygotic twins are genetically no more similar than two siblings born after separate pregnancies. (Last, J.M., A Dictionary of Epidemiology, 2d ed) |
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| D019655 |
Quantitative Trait, Heritable |
A characteristic showing quantitative inheritance such as SKIN PIGMENTATION in humans. (From A Dictionary of Genetics, 4th ed) |
Heritable Quantitative Trait,Heritable Quantitative Traits,Quantitative Traits, Heritable,Trait, Heritable Quantitative,Traits, Heritable Quantitative |
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