dactinomycin and Abnormalities, Drug-Induced

dactinomycin has been researched along with Abnormalities, Drug-Induced in 51 studies

Research

Studies (51)

Timeframe	Studies, this research(%)	All Research%
pre-1990	48 (94.12)	18.7374
1990's	3 (5.88)	18.2507
2000's	0 (0.00)	29.6817
2010's	0 (0.00)	24.3611
2020's	0 (0.00)	2.80

Authors

Authors	Studies
BRACHET, J; DENIS, H; DEVITRY, F	1
DENIS, H	1
MERCIER-PAROT, L; TUCHMANN-DUPLESSIS, H	3
WILSON, JG	2
Ballif, M	1
Mathinos, PR; Randall, JL; Ritter, EJ; Scott, WJ; Wilson, JG	1
Leibzig, C; Schowing, J; Zivkovic, S	1
Jelínek, R; Seichert, V; Svecová, E	1
Gottschewski, GH	2
Bagshawe, KD; Walden, PA	1
Dyban, AP	1
Eibs, HG; Spielmann, H	1
Harvey, JE; Srebnik, HH	1
Bell, PS; Glass, RH	1
Bachmann, D; Merker, HJ; Neubert, D; Zimmermann, B	1
Gottschewski, GH; Polack, M	1
Byrne, J; Mulvihill, JJ; Nicholson, HS	1
Green, DM; Hall, B; Lowrie, G; Seigelstein, N; Zevon, MA	1
Juhr, NC; Ratsch, H	1
Bantle, JA; Courchesne, CL	1
Seichert, V	1
Katdare, SM; Mulherkar, L	1
Jelínek, R; Peterka, M; Rychter, Z	1
Akimova, IM	1
Tuchmann-Duplessis, H	1
Hiss, D; Mottot, G; Rosner, I; Tuchmann-Duplessis, H	1
Raynaud, A; Vasse, J	1
Köhler, E; Merker, HJ	1
Litzenbörger, H; Lücke, I; Spielmann, H	1
Auslander, SE; Kalmus, GW; Lee, H	1
Kimmel, CA; Wilson, JG	1
Merker, HJ; Schweichel, JU	1
Carpent, G; Desclin, L	1
Haruta, M	1
Gipouloux, JD	1
Lee, H	1
Billett, FS; Bowman, P; Pugh, D	1
Pozhidaev, EA	1
DiPaolo, JA; Elis, J	2
Kobayashi, Y; Takano, K	1
Lee, HY; Poprycz, W	1
Jordan, RL; Wilson, JG	1
Akimova, IM; Dyban, AP	1
Coghill, JE; Pierro, LJ	1
De Bernardi, F; Leonardi Cigada, M; Maci, R; Ranzi, S	1
Sherbet, GV	1

Reviews

1 review(s) available for dactinomycin and Abnormalities, Drug-Induced

Article	Year
[Theoretical and applied aspects of experimental teratology]. Ontogenez, 1977, Volume: 8, Issue:6 Topics: Abnormalities, Drug-Induced; Aminopterin; Animals; Dactinomycin; DNA Replication; Dose-Response Relationship, Drug; Environmental Pollutants; Female; Fetal Death; Folic Acid Antagonists; Gestational Age; Haplorhini; Humans; Mutation; Pregnancy; Pyrimethamine; Rats; Risk; Species Specificity; Teratogens; Thalidomide; Time Factors	1977

Article

Year

[Theoretical and applied aspects of experimental teratology].

Ontogenez, 1977, Volume: 8, Issue:6

Topics: Abnormalities, Drug-Induced; Aminopterin; Animals; Dactinomycin; DNA Replication; Dose-Response Relationship, Drug; Environmental Pollutants; Female; Fetal Death; Folic Acid Antagonists; Gestational Age; Haplorhini; Humans; Mutation; Pregnancy; Pyrimethamine; Rats; Risk; Species Specificity; Teratogens; Thalidomide; Time Factors

1977

Other Studies

50 other study(ies) available for dactinomycin and Abnormalities, Drug-Induced

Article	Year
THE EFFECTS OF ACTINOMYCIN D AND PUROMYCIN ON MORPHOGENESIS IN AMPHIBIAN EGGS AND ACETABULARIA MEDITERRANEA. Developmental biology, 1964, Volume: 9 Topics: Abnormalities, Drug-Induced; Acetabularia; Amphibians; Animals; Anura; Dactinomycin; DNA; Embryo, Mammalian; Embryo, Nonmammalian; Eukaryota; Histology; Morphogenesis; Ovum; Proteins; Puromycin; Research; Toxicology; Urodela	1964
[EFFECTS OF ACTINOMYCIN ON EMBRYONAL DEVELOPMENT. I. MORPHOLOGICAL STUDY: SUPPRESSION BY ACTINOMYCIN OF THE COMPETENCE OF THE ECTODERM AND THE INDUCTIVE CAPACITY OF THE BLASTOPORAL LIP]. Developmental biology, 1964, Volume: 9 Topics: Abnormalities, Drug-Induced; Animals; Dactinomycin; Ectoderm; Ectodermal Dysplasia; Embryo, Mammalian; Embryo, Nonmammalian; Embryonic Development; Gastrula; Histology; Lip; Research; Toxicology; Urodela	1964
[REPERCUSSIONS OF NEUROLEPTIC AND ANTITUMOR AGENTS ON PRENATAL DEVELOPMENT]. Bulletin der Schweizerischen Akademie der Medizinischen Wissenschaften, 1964, Volume: 20 Topics: Abnormalities, Drug-Induced; Alkylating Agents; Animals; Antimetabolites; Antineoplastic Agents; Antipsychotic Agents; Barbiturates; Colchicine; Dactinomycin; Folic Acid Antagonists; Glutethimide; Mice; Nitrogen Mustard Compounds; Parasympatholytics; Podophyllin; Podophyllum; Pregnancy; Pregnancy, Animal; Rabbits; Rats; Research; Thalidomide; Toxicology; Tranquilizing Agents; Urethane	1964
[CURRENT PROGRESS IN THE FIELD OF TERATOLOGY WITH SPECIAL REFERENCE TO THE APPLICATION OF 2 OR MORE KINDS OF AGENTS]. Saishin igaku. Modern medicine, 1965, Volume: 20 Topics: Abnormalities, Drug-Induced; Congenital Abnormalities; Dactinomycin; Fluorouracil; Humans; Mercaptopurine; Teratology	1965
EMBRYOLOGICAL CONSIDERATIONS IN TERATOLOGY. Annals of the New York Academy of Sciences, 1965, Mar-12, Volume: 123 Topics: Abnormalities, Drug-Induced; Cell Differentiation; Dactinomycin; Embryology; Pregnancy; Pregnancy, Animal; Rats; Research; Teratology; Toxicology	1965
[A method used in experimental embryology: localized microinjections]. Revue medicale de la Suisse romande, 1981, Volume: 102, Issue:4 Topics: Abnormalities, Drug-Induced; Animals; Chick Embryo; Dactinomycin; Microinjections	1981
Potentiative interactions between caffeine and various teratogenic agents. Teratology, 1982, Volume: 25, Issue:1 Topics: Abnormalities, Drug-Induced; Acetazolamide; Animals; Caffeine; Cycloheximide; Dactinomycin; Dose-Response Relationship, Drug; Drug Synergism; Emetine; Female; Fetal Death; Floxuridine; Hydroxyurea; Pregnancy; Rats; Rats, Inbred Strains	1982
[Morphogenesis of the embryonic head of the chicken following treatment of the isolated brain with actinomycin D and puromycin. First observations]. Bulletin de l'Association des anatomistes, 1980, Volume: 64, Issue:185 Topics: Abnormalities, Drug-Induced; Animals; Brain; Chick Embryo; Dactinomycin; Eye Abnormalities; Facial Asymmetry; Head; Puromycin	1980
Developmental view of the origination of limb malformations. Folia morphologica, 1983, Volume: 31, Issue:1 Topics: Abnormalities, Drug-Induced; Animals; Chick Embryo; Dactinomycin; Extremities; Limb Deformities, Congenital	1983
[The effect of actinomycin D on the early stages of embryonic development in the rabbit, Oryctolagus cuniculus L]. Arzneimittel-Forschung, 1980, Volume: 30, Issue:2 Topics: Abnormalities, Drug-Induced; Agranulocytosis; Animals; Cricetinae; Dactinomycin; Embryo, Mammalian; Female; Guinea Pigs; Lethal Dose 50; Leukocytosis; Mesocricetus; Pregnancy; Rabbits; Teratogens	1980
Reproductive performance of women successfully treated for gestational trophoblastic tumors. American journal of obstetrics and gynecology, 1976, Aug-15, Volume: 125, Issue:8 Topics: Abnormalities, Drug-Induced; Antineoplastic Agents; Azauridine; Child; Child, Preschool; Dactinomycin; Drug Therapy, Combination; Female; Follow-Up Studies; Humans; Hydatidiform Mole; Infant; Infant, Newborn; Leucovorin; Male; Mercaptopurine; Methotrexate; Pregnancy; Pregnancy Complications; Trophoblastic Neoplasms; Uterine Neoplasms	1976
Recent progress in teratology. A survey of methods for the study of drug actions during the preimplantation period. Arzneimittel-Forschung, 1978, Volume: 28, Issue:10 Topics: Abnormalities, Drug-Induced; Animals; Blastocyst; Culture Techniques; Cyclophosphamide; Dactinomycin; DNA Repair; Embryo Transfer; Embryo, Mammalian; Embryonic Development; Female; Fetus; Gestational Age; Litter Size; Maternal-Fetal Exchange; Mice; Morphogenesis; Pregnancy; Rabbits; Rats	1978
Induction of malformations by actinomycin D at mid-pregnancy in the rat and protection by L-thyroxine. Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.), 1978, Volume: 157, Issue:4 Topics: Abnormalities, Drug-Induced; Animals; Clubfoot; Dactinomycin; Female; Gestational Age; Injections, Subcutaneous; Male; Pregnancy; Rats; Teratogens; Thyroxine	1978
Development of the mouse blastocyst after actinomycin D treatment. Fertility and sterility, 1975, Volume: 26, Issue:5 Topics: Abnormalities, Drug-Induced; Animals; Blastocyst; Cell Adhesion; Dactinomycin; Embryo Implantation; Embryo, Mammalian; Eye Abnormalities; Female; Fetus; Genetic Code; Leg; Mice; Pregnancy; Protein Biosynthesis; RNA; Time Factors; Toes	1975
Induction of skeletal malformations in organ cultures of mouse limb buds. Experientia, 1975, Feb-15, Volume: 31, Issue:2 Topics: Abnormalities, Drug-Induced; Animals; Dactinomycin; Humerus; Organ Culture Techniques; Scapula; Teratogens	1975
[Brain malformations in rabbit fetuses after treatment of the mother with actinomycin D during early pregnancy and at the time of organogenesis]. Zeitschrift fur Versuchstierkunde, 1976, Volume: 18, Issue:1-2 Topics: Abnormalities, Drug-Induced; Animals; Brain; Dactinomycin; Female; Gestational Age; Pregnancy	1976
Absence of birth defects in offspring of women treated with dactinomycin. The New England journal of medicine, 1992, Jan-09, Volume: 326, Issue:2 Topics: Abnormalities, Drug-Induced; Dactinomycin; Female; Fetus; Humans; Mutagens	1992
Congenital anomalies in children of patients who received chemotherapy for cancer in childhood and adolescence. The New England journal of medicine, 1991, Jul-18, Volume: 325, Issue:3 Topics: Abnormalities, Drug-Induced; Antineoplastic Agents; Dactinomycin; Fathers; Female; Heart Defects, Congenital; Humans; Male; Mothers; Mutagens; Neoplasms	1991
[Modification of the teratogenesis of actinomycin D and cyclophosphamide by a Mycoplasma pulmonis infection in rats]. Zeitschrift fur Versuchstierkunde, 1990, Volume: 33, Issue:6 Topics: Abnormalities, Drug-Induced; Animals; Cyclophosphamide; Dactinomycin; Female; Fetal Resorption; Mycoplasma Infections; Pregnancy; Rats; Rats, Inbred Strains; Specific Pathogen-Free Organisms	1990
Analysis of the activity of DNA, RNA, and protein synthesis inhibitors on Xenopus embryo development. Teratogenesis, carcinogenesis, and mutagenesis, 1985, Volume: 5, Issue:3 Topics: Abnormalities, Drug-Induced; Animals; Cycloheximide; Cytarabine; Dactinomycin; DNA Replication; Drug Evaluation, Preclinical; Embryo, Nonmammalian; Ethidium; Female; Hydroxyurea; Protein Biosynthesis; Teratogens; Transcription, Genetic; Xenopus	1985
Significance of the differential growth, relative tissue shifts and the vascular bed in limb development. Acta Universitatis Carolinae. Medica. Monographia, 1988, Volume: 125 Topics: Abnormalities, Drug-Induced; Adenine; Animals; Chick Embryo; Citrates; Citric Acid; Dactinomycin; Ectoderm; Extremities; Mesoderm; Morphogenesis; Teratogens; Wings, Animal	1988
Alleviation of the toxicity of actinomycin D by uridine and thymidine on the morphogenesis of chick embryos cultivated in vitro. Experientia, 1972, Jun-15, Volume: 28, Issue:6 Topics: Abnormalities, Drug-Induced; Animals; Chick Embryo; Culture Techniques; Dactinomycin; Heart Defects, Congenital; Microcephaly; Thymidine; Uridine	1972
[Early detection of teratogenous effects on chick embryo]. Ceskoslovenska pediatrie, 1972, Volume: 27, Issue:8 Topics: Abnormalities, Drug-Induced; Animals; Azauridine; Chick Embryo; Dactinomycin; Morphogenesis; Thiazines; Time Factors	1972
[Skeletal developmental anomalies in rat embryos following the action of actinomucin D]. Arkhiv anatomii, gistologii i embriologii, 1973, Volume: 64, Issue:3 Topics: Abnormalities, Drug-Induced; Abnormalities, Multiple; Animals; Dactinomycin; Embryonic and Fetal Development; Female; Flavonoids; Injections, Intraperitoneal; Microscopy; Pregnancy; Rats; Time Factors	1973
[Problems posed by the effects of medication on offspring]. Pure and applied chemistry. Chimie pure et appliquee, 1969, Volume: 19, Issue:1 Topics: Abnormalities, Drug-Induced; Animals; Dactinomycin; Female; Fetus; Glutethimide; Humans; Hypoglycemic Agents; Immunosuppressive Agents; Mice; Pregnancy; Rabbits; Rats; Thalidomide	1969
Embryotoxic and teratogenic effect of actinomycin D in the Syrian hamster. Toxicology, 1973, Volume: 1, Issue:2 Topics: Abnormalities, Drug-Induced; Animals; Bone and Bones; Cricetinae; Dactinomycin; Dose-Response Relationship, Drug; Embryo, Mammalian; Embryonic and Fetal Development; Eye Abnormalities; Face; Female; Fetus; Gestational Age; Nervous System Malformations; Pregnancy	1973
[Attempted prevention of the embryotoxic and teratogenic effects of actinomycin D. II. Influence of the lactogenic hormone]. Comptes rendus des seances de la Societe de biologie et de ses filiales, 1970, Volume: 164, Issue:1 Topics: Abnormalities, Drug-Induced; Abortion, Spontaneous; Animals; Dactinomycin; Female; Fetus; Pregnancy; Pregnancy, Animal; Prolactin; Rats	1970
[Attempted prevention of the embryotoxic and teratogenic effects of actinomycin D. I. Action of progesterone or of an association of progesterone and folliculin]. Comptes rendus des seances de la Societe de biologie et de ses filiales, 1970, Volume: 164, Issue:1 Topics: Abnormalities, Drug-Induced; Animals; Dactinomycin; Estrone; Fetus; Progesterone; Rats	1970
[General effects of dactinomycin on the embryo of the green lizard (Lacerta viridis Laur.)]. Comptes rendus des seances de la Societe de biologie et de ses filiales, 1970, Volume: 164, Issue:10 Topics: Abnormalities, Drug-Induced; Animals; Cell Differentiation; Dactinomycin; Embryo, Nonmammalian; Female; Lizards; Ovum; Urogenital System	1970
Studies on the teratogenic phase specificity of actinomycin D in the rat. Naunyn-Schmiedeberg's archives of pharmacology, 1972, Volume: 275, Issue:1 Topics: Abnormalities, Drug-Induced; Animals; Cell Nucleolus; Cell Nucleus; Dactinomycin; Decidua; DNA-Directed RNA Polymerases; Ectoderm; Embryo, Mammalian; Female; Fetal Death; Fetus; Gestational Age; Maternal-Fetal Exchange; Microscopy, Electron; Organ Specificity; Placenta; Pregnancy; Rats; Tissue Extracts; Tritium	1972
Proceedings: Transplantation of blastocysts as a tool in teratologic studies on the pre-implantation period of the rat. Naunyn-Schmiedeberg's archives of pharmacology, 1974, Volume: 282, Issue:Suppl Topics: Abnormalities, Drug-Induced; Age Factors; Animals; Cyclophosphamide; Dactinomycin; Dose-Response Relationship, Drug; Embryo Transfer; Female; Pregnancy; Rats; Time Factors; Transplantation, Homologous	1974
Some new data concerning effect of actinomycin D on early chick embryos. Experientia, 1973, Volume: 29, Issue:12 Topics: Abnormalities, Drug-Induced; Animals; Brain; Chick Embryo; Dactinomycin; Heart; Time Factors	1973
Skeletal deviations in rats: malformations or variations? Teratology, 1973, Volume: 8, Issue:3 Topics: Abnormalities, Drug-Induced; Acetazolamide; Animals; Bone and Bones; Dactinomycin; Dose-Response Relationship, Drug; Female; Genetic Variation; Maternal-Fetal Exchange; Pregnancy; Rats; Ribs; Salicylates; Spine; Sternum	1973
The morphology of various types of cell death in prenatal tissues. Teratology, 1973, Volume: 7, Issue:3 Topics: Abnormalities, Drug-Induced; Animals; Cell Survival; Cyclophosphamide; Dactinomycin; Embryo, Mammalian; Embryonic and Fetal Development; Female; Fetus; Magnesium Deficiency; Mercaptopurine; Mice; Mice, Inbred Strains; Microscopy, Electron; Necrosis; Niacinamide; Pregnancy; Rats; Rats, Inbred Strains; Vincristine; Vitamin A	1973
[Apropos of the mechanism of action of actinomycin D on gestation in the rat]. Comptes rendus hebdomadaires des seances de l'Academie des sciences. Serie D: Sciences naturelles, 1967, Jun-19, Volume: 264, Issue:25 Topics: Abnormalities, Drug-Induced; Animals; Dactinomycin; Estrone; Female; Fetal Diseases; Pituitary Gland; Pregnancy; Progesterone; Prolactin; Rats	1967
Teratogenic effects of actinomycin-D on ddO mouse embryos. Acta pathologica japonica, 1968, Volume: 18, Issue:3 Topics: Abdomen; Abnormalities, Drug-Induced; Animals; Body Weight; Bone and Bones; Dactinomycin; Eye Abnormalities; Female; Fetal Death; Fetus; Gestational Age; Growth; Jaw Abnormalities; Male; Mice; Placenta; Pregnancy; Thorax	1968
[Migration of germinal cells of the common toad (Bufo bufo L.) after treatment of embryos with actinomycin D]. Comptes rendus hebdomadaires des seances de l'Academie des sciences. Serie D: Sciences naturelles, 1969, Jul-16, Volume: 269, Issue:2 Topics: Abnormalities, Drug-Induced; Abnormalities, Multiple; Animals; Anura; Brain; Dactinomycin; Diffusion; Embryo, Nonmammalian; Fertility; Germ Cells; Protein Biosynthesis; Tail; Time Factors	1969
Effects of anthramycin methyl ether on early chick embryos. Growth, 1972, Volume: 36, Issue:1 Topics: Abnormalities, Drug-Induced; Animals; Autoradiography; Benzazepines; Brain; Cell Differentiation; Cell Nucleus; Chick Embryo; Dactinomycin; Ethers; Gestational Age; Heart; Mesoderm; Mitosis; RNA; Tritium; Uridine	1972
The effects of actinomycin D on the early development of quail and chick embryos. Journal of embryology and experimental morphology, 1971, Volume: 25, Issue:3 Topics: Abnormalities, Drug-Induced; Animals; Birds; Brain; Chick Embryo; Dactinomycin; DNA; Embryo, Nonmammalian; Female; Germ Layers; Mesoderm; Nucleosides; RNA; RNA, Messenger; Tritium; Vitelline Membrane	1971
[Characteristics of embryogenesis following the effects of actinomycin D and levomycetin (chloramphenicol) on female rats before and after their insemination]. Arkhiv anatomii, gistologii i embriologii, 1969, Volume: 56, Issue:5 Topics: Abnormalities, Drug-Induced; Animals; Chloramphenicol; Dactinomycin; Embryo Implantation; Female; Fetal Death; Gestational Age; Injections, Intraperitoneal; Methods; Ovum; Pregnancy; Rats; Time Factors	1969
The alteration of actinomycin D teratogenicity by hormones and nucleic acids. Teratology, 1970, Volume: 3, Issue:1 Topics: Abnormalities, Drug-Induced; Animals; Cricetinae; Dactinomycin; DNA; Estrone; Female; Fetal Death; Maternal Mortality; Pregnancy; Progesterone; RNA	1970
Effect of actinomycin D and urethan on successive litters and generations of mice. Teratology, 1970, Volume: 3, Issue:1 Topics: Abnormalities, Drug-Induced; Animals; Breeding; Dactinomycin; Female; Fetal Death; Lung Neoplasms; Mice; Pregnancy; Time Factors; Urethane	1970
[Teratogenic effects of actinomycin D in rats]. Kaibogaku zasshi. Journal of anatomy, 1970, Aug-01, Volume: 45, Issue:4 Topics: Abnormalities, Drug-Induced; Animals; Dactinomycin; Embryo, Mammalian; Female; Fetal Death; Gestational Age; Injections, Intraperitoneal; Male; Pregnancy; Rats	1970
Effects of actinomycin D on explanted early chick embryos. Growth, 1970, Volume: 34, Issue:4 Topics: Abnormalities, Drug-Induced; Animals; Brain; Cell Differentiation; Chick Embryo; Dactinomycin; Heart; Mitosis; Ribonucleases; RNA	1970
Radioautographic study of RNA synthesis in normal and actinomycin D treated rat embryos. The Anatomical record, 1970, Volume: 168, Issue:4 Topics: Abnormalities, Drug-Induced; Animals; Autoradiography; Dactinomycin; Decidua; Deoxyribonucleases; DNA; Embryo, Mammalian; Endoderm; Female; Gestational Age; Pregnancy; Rats; RNA; Tritium; Trophoblasts; Uridine	1970
[Characteristics of mammal embryogenesis in blocked RNA synthesis (experiments with actinomycin D in rats)]. Arkhiv anatomii, gistologii i embriologii, 1967, Volume: 52, Issue:5 Topics: Abnormalities, Drug-Induced; Animals; Dactinomycin; Depression, Chemical; Embryo Implantation; Embryo, Mammalian; Female; Fetal Death; Gestational Age; Pregnancy; Rats; RNA	1967
[The teratogenic risk in the use of drugs]. Wiener medizinische Wochenschrift (1946), 1967, Oct-21, Volume: 117, Issue:42 Topics: Abnormalities, Drug-Induced; Animals; Central Nervous System; Cyclophosphamide; Dactinomycin; Drug-Related Side Effects and Adverse Reactions; Embryo, Mammalian; Female; Fetal Death; Pharmaceutical Preparations; Pregnancy; Pregnancy, Animal; Rabbits	1967
Interaction in teratogenesis: Actinomycin D, puromycin and deoxyguanosine. Teratology, 1968, Volume: 1, Issue:1 Topics: Abnormalities, Drug-Induced; Animals; Axis, Cervical Vertebra; Chick Embryo; Dactinomycin; Nucleosides; Puromycin; Thorax	1968
On protein synthesis during the development of lithium-treated embryos. Experientia, 1969, Feb-15, Volume: 25, Issue:2 Topics: Abnormalities, Drug-Induced; Animals; Anura; Centrifugation, Density Gradient; Chick Embryo; Dactinomycin; Daunorubicin; Depression, Chemical; Embryo, Nonmammalian; Lithium; Protein Biosynthesis; Protein Hydrolysates; Puromycin; Ribosomes; Spectrophotometry	1969
The inhibitory effects of calf thymus-histone fractions on the development of the chick embryo. Journal of embryology and experimental morphology, 1966, Volume: 16, Issue:1 Topics: Abnormalities, Drug-Induced; Animals; Autoradiography; Cattle; Cell Differentiation; Cell Nucleus; Chick Embryo; Dactinomycin; Genes; Histones; In Vitro Techniques; Thymus Gland; Tritium	1966