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  • 1
    Online Resource
    Online Resource
    San Diego :Elsevier Science & Technology,
    Keywords: Cell division. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (352 pages)
    Edition: 1st ed.
    ISBN: 9781483282008
    Language: English
    Note: Front Cover -- Cell Growth and Cell Division -- Copyright Page -- Table of Contents -- LIST OF CONTRIBUTORS -- PREFACE -- Chapter 1. INDEPENDENT CYCLES OF CELL DIVISION AND OF DNA SYNTHESIS IN TETRAHYMENA -- INTRODUCTION -- THE PROBLEM -- RNA SYNTHESIS AND SYNCHRONOUS DIVISION -- ASYNCHRONOUS DNA SYNTHESIS AND SYNCHRONOUS DIVISION -- DISCUSSION -- SUMMARY -- REFERENCES -- Chapter 2. CELL DIVISION AND GROWTH STUDIES ON SYNCHRONIZED FLAGELLATES1 -- INTRODUCTION -- CONTINUOUS SYNCHRONIZED CULTURES -- OXYGEN CONSUMPTION DURING DIVISION -- STRUCTURES IN ASTASIA -- CELL DIVISION -- CELL FISSION AND THE CELL SURFACE -- SUMMARY -- REFERENCES -- Chapter 3. MACRONUCLEAR VARIABILITY OF BLEPHARISMA ASSOCIATED WITH GROWTH -- INTRODUCTION -- SPECIES AND STRAINS USED IN THIS STUDY -- NUTRITIONAL STUDIES -- TEMPERATURE STUDIES -- PRESSURE STUDIES -- STUDIES OF BLEPHARISMA GROWTH -- SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES -- Chapter 4. FACETS OF INTRACELLULAR REGULATION OF MEIOSIS AND MITOSIS -- INTRODUCTION -- EXPERIMENTAL STUDIES -- THE MEIOTIC CYCLE IN TRILLIUM ERECTUM -- DEVELOPMENTAL STAGE AND SUSCEPTIBILITY TO INHIBITION -- NATURE OF UPSETS IN THE MEIOTIC CYCLE -- UPSET OF MEIOSIS I -- UPSET OF MEIOSIS II -- CHROMOSOME STRUCTURE -- AUTONOMY AT THE MOLECULAR LEVEL -- SUMMARY -- REFERENCES -- Chapter 5. NUCLEOTIDE METABOLISM AND RIBOSOMAL ACTIVITY DURING SYNCHRONIZED CELL DIVISION -- INTRODUCTION -- RESULTS AND DISCUSSION -- CONCLUSIONS -- SUMMARY -- ACKNOWLEDGMENT -- REFERENCES -- Chapter 6. THE INTEGRATION OF PROTEIN AND RIBONUCLEIC ACID SYNTHESIS IN BACTERIA -- INTRODUCTION -- RACKGROUND -- RIBOSOMAL AND TRANSFER RNA -- THE CONTROL OF RNA SYNTHESIS -- OUTLOOK -- SUMMARY -- REFERENCES -- Chapter 7. RNA AND PROTEIN REPLACEMENT IN THE NUCLEUS DURING GROWTH AND DIVISION AND THE CONSERVATION OF COMPONENTS IN THE CHROMOSOME -- INTRODUCTION. , MATERIALS AND METHODS -- RESULTS -- SUMMARY -- REFERENCES -- Chapter 8. RNA AND PROTEIN IN NUCLEOCYTOPLASMIC INTERACTIONS1 -- RNA IN NUCLEOCYTOPLASMIC COMMUNICATION -- PROTEIN IN NUCLEOCYTOPLASMIC INTERACTIONS -- SUMMARY -- REFERENCES -- Chapter 9. THE CELL CYCLE OF A FISSION YEAST -- SUMMARY -- REFERENCES -- Chapter 10. CONTROL MECHANISMS FOR CHROMOSOME REPRODUCTION IN THE CELL CYCLE -- INTRODUCTION -- LEVELS OF OPERATION OF CONTROL MECHANISMS -- PATTERNS OF CONTROL IN REPLICATION OF CHROMOSOMAL DNA -- SUMMARY -- REFERENCES -- Chapter 11. LES FACTEURS DE LA CROISSANCE DE TUMEURS ASSOCIÉES Á DES ORGANES EMBRYONNAIRES DE POULET -- CULTURES DE TUMEURS ANIMALES ET DE SOUCHES CELLULAIRES D'ORIGINES DIVERSES -- CULTURES DE TUMEURS HUMAINES FRAÎCHES -- CONCLUSIONS -- RÉSUMÉ -- SUMMARY -- BIBLIOGRAPHIE -- Chapter 12. DYNAMISME DE L'ANA-TELOPHASE ET CYTODIÉRÈSE -- INTRODUCTION -- DIVISION NORMALE DE L'OEUF D'ARTEMIA -- DIVISION DES OEUFS ACTIVES -- INFLUENCE DES RÉACTIFS DES PROTÉINES SULFHYDRILEES SUR LA DIVISION -- CONCLUSION -- RESUME -- SUMMARY -- BIBLIOGRAPHIE -- Chapter 13. SOME OBSERVATIONS CONCERNING CELL MOVEMENT AND CELL CLEAVAGE -- SUMMARY -- REFERENCES -- Chapter 14. A NEW THEORY ON THE MECHANISM OF CELL DIVISION -- INTRODUCTION -- METHODS USED -- SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES -- Chapter 15. FORCE OF CLEAVAGE OF THE DIVIDING SEA URCHIN EGG -- INTRODUCTION -- PART I -- PART II -- PART III -- CONCLUSION -- SUMMARY -- REFERENCES -- Chapter 16. SOME PROBLEMS OF CLEAVAGE IN RELATION TO THE CELL MEMBRANE -- INTRODUCTION -- THE RELATION BETWEEN THE MITOTIC APPARATUS AND CLEAVAGE -- THE CHANGES IN THE CELL MEMBRANE DURING CLEAVAGE -- THE BIOCHEMICAL BASIS OF CLEAVAGE -- SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES -- Chapter 17. APPLICATION DE TECHNIQUES CYTOLOGIQUES MODERNES À L'ÉTUDE DU PROBLÈME DES AMITOSES DANS LES BOURGEONS MUSCULAIRES. , MATÉRIEL ET TECHNIQUES -- OBSERVATIONS PERSONNELLES -- CONCLUSIONS GÉNÉRALES ET RÉSUMÉ -- SUMMARY -- BIBLIOGRAPHIE -- Chapter 18. LE PROBLÈME DE L'AMITOSE -- SUMMARY -- BIBLIOGRAPHIE -- Chapter 19. CYTOPLASMIC DEOXYRIBONUCLEIC ACIDS: THEIR MITOCHONDRIAL LOCALIZATION AND SYNTHESIS IN SOMATIC CELLS UNDER EXPERIMENTAL CONDITIONS AND DURING THE NORMAL CELL CYCLE IN RELATION TO THE PREPARATION FOR MITOSIS -- INTRODUCTION -- POSITIVE FEULGEN REACTION IN THE CYTOPLASM -- QUANTITATIVE ESTIMATIONS OF DNA -- THE CYTOPLASMIC DNA IS CONFINED TO MODIFIED MITOCHONDRIA -- HISTORADIOAUTOGRAPHIC OBSERVATIONS -- REVERSIBILITY OF THE EFFECTS OF THE ACID DNASE -- OTHER EXPERIMENTAL PROCEDURES THAT CAUSE CYTOPLASMIC DNA -- HYPOTHESES AND SUGGESTIONS CONCERNING THE DNA LOCALIZATION AND SYNTHESIS INSIDE THE CYTOPLASM -- SUMMARY -- REFERENCES -- AUTHOR INDEX.
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  • 2
    Online Resource
    Online Resource
    San Diego :Elsevier Science & Technology,
    Keywords: Cytogenetics. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (326 pages)
    Edition: 1st ed.
    ISBN: 9781483281995
    Language: English
    Note: Front Cover -- Cytogenetics of Cells in Culture -- Copyright Page -- Table of Contents -- CHARLES MARC POMERAT -- LIST OF CONTRIBUTORS -- PREFACE -- Chapter 1. CYTOGENETIC ALTERATIONS IN MIXED CULTURES OF MAMMALIAN SOMATIC CELLS IN VITRO -- INTRODUCTION -- CONCLUSIONS AND SUMMARY -- REFERENCES -- Chapter 2. HYBRIDIZATION OF SOMATIC CELLS JN VITRO -- INTRODUCTION -- HYBRIDS OBTAINED UP TO DATE -- SELECTION AND VIABILITY OF HYBRIDS -- CHROMOSOME SEGREGATION^ -- SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES -- Chapter 3. SELECTION PRESSURE IN MAMMALIAN CELL POPULATIONS -- INTRODUCTION -- THE CONTRIBUTION OF ERROR -- NORMAL SOMATIC TISSUES -- IRRADIATED SOMATIC TISSUES -- DISCUSSION -- SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES -- Chapter 4. PHASE CINEMATOGRAPHY STUDIES ON THE EFFECTS OF RADIATION AND OF SOME CHEMICALS ON CELLS AND CHROMOSOMES -- INTRODUCTION -- CYTOLOGICAL RESPONSES OF VARIOUS CELLULAR ORGANELLES TO CERTAIN CHEMICALS -- BEHAVIOR OF CHROMOSOMES IN GRASSHOPPER SPERMATOCYTES FOLLOWING β-IRRADIATION -- BEHAVIOR OF THE TELOPHASE CHROMOSOME GROUP IN SILKWORM SPERMATOCYTES FOLLOWING ULTRAVIOLET MICROBEAM IRRADIATION -- GENERAL SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES -- Chapter 5. CELLULAR INTERPRETATION OF ASPECTS OF THE ACUTE MAMMALIAN RADIATION SYNDROME -- INTRODUCTION -- DIFFICULTIES IN INTERPRETATION OF THE RADIATION SYNDROME -- SURVIVAL CURVES FOR MAMMALIAN CELLS IN VITRO -- INTERPRETATION OF THE ACUTE WHOLE-BODY RADIATION SYNDROME ON THE BASIS OF CELL REPRODUCTIVE KILLING -- FURTHER EXPERIMENTAL EVIDENCE FOR THIS FORMULATION -- IDENTIFICATION OF THE SITE WITHIN THE CELL RESPONSIBLE FOR THE LETHAL ACTION -- SUMMARY -- REFERENCES -- Chapter 6. RETENTION OF EUPLOIDY AND MUTAGENICITY OF HETEROCHROMATIN IN CULTURE -- INTRODUCTION -- SEX HETEROCHROMATIN -- RETENTION OF EUPLOIDY IN VITRO -- EUPLOID SPONTANEOUS NEOPLASIA -- INDUCED MALIGNANCIES. , IN VIVO TRANSPLANTATION OF POLYOMA-TRANSFORMED EUPLOID CELL LINES -- SPONTANEOUS TUMOR 89 -- SPECIFICITY OF BUDR FOR SECONDARY CONSTRICTIONS -- TELOMERIC ASSOCIATION -- LESION OF SECONDARY CONSTRICTIONS OF X-CHROMOSOMES OF POLYOMA-TRANSFORMED CELLS -- CHARACTERISTICS OF AN ADENOVIRUS -- SUMMARY -- ADDENDUM -- REFERENCES -- Chapter 7. THE NATURE, ORIGIN, AND GENETIC IMPLICATIONS OF STRUCTURAL ABNORMALITIES OF THE SEX CHROMOSOMES IN MAN -- INTRODUCTION -- ABNORMALITIES OF THE Y-CHROMOSOME -- SUMMARY -- ACKNOWLEDGMENT -- REFERENCES -- Chapter 8. CHROMOSOME STUDIES IN THE GENERAL POPULATION -- INTRODUCTION -- COMPOSITION OF THE STUDY POPULATION -- METHOD -- RESULTS: GERIATRIC POPULATION -- GENERAL POPULATION -- DISCUSSION -- SUMMARY -- REFERENCES -- Chapter 9. ALTÉRATIONS CHROMOSOMIQUES DANS DES CELLULES CULTIVÉES EN PRÉSENCE D'EXTRAITS TISSULAIRES HÉTÉROSPÉCIFIQUES1 -- INTRODUCTION -- MATERIEL ET TECHNIQUES -- RESULTATS -- DISCUSSION -- RESUME -- SUMMARY -- BIBLIOGRAPHIE -- Chapter 10. CHROMOSOMAL STUDIES ON HUMAN LEUCOCYTES FOLLOWING TREATMENT WITH RADIOACTIVE IODINE IN VIVO AND IN VITRO -- INTRODUCTION -- MATERIALS AND METHODS -- RESULTS -- DISCUSSION -- SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES -- Chapter 11. THE LIMITED IN VITRO LIFETIME OF HUMAN DIPLOID CELL STRAINS -- INTRODUCTION -- MATERIALS AND METHODS -- EXPERIMENTAL RESULTS -- DISCUSSION -- SUMMARY -- REFERENCES -- Chapter 12. REGULATION OF DNA REPLICATION AND VARIEGATION-TYPE POSITION EFFECTS -- PATTERNS OF ASYNCHRONOUS REPLICATION -- LATE REPLICATION, HETEROPYCNOSIS, AND GENETIC INACTIVATION -- TESTS OF THE INACTIVATION HYPOTHESIS -- INDUCTION OF THE REPRESSED STATE -- HYPOTHESIS FOR A GENERAL REPRESSOR SYSTEM -- SUMMARY AND PREDICTIONS -- ACKNOWLEDGMENT -- REFERENCES -- Chapter 13. IDENTIFICATION AND CHARACTERIZATION OF HUMAN CHROMOSOMES BY DNA REPLICATION SEQUENCE -- INTRODUCTION. , CHROMOSOMAL CHARACTERISTICS -- COMMENTS -- SUMMARY -- REFERENCES -- Chapter 14. MUTAGENIC RESPONSE OF HUMAN SOMATIC CELL LINES -- INTRODUCTION -- MATERIALS AND METHODS -- RESULTS AND DISCUSSION -- CONCLUSIONS AND SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES -- Chapter 15. DNA SYNTHESIS AND CHROMOSOMAL MORPHOLOGY OF CHINESE HAMSTER CELLS CULTURED IN MEDIA CONTAINING N-DEACETYL-N-METHYLCOLCHICINE (COLCEMID) -- INTRODUCTION -- PROCEDURES -- EXPERIMENTAL DATA -- DISCUSSION -- SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES -- Chapter 16. HETEROCHROMATIN IN THE HUMAN MALE -- INTRODUCTION -- MATERIALS AND METHODS -- RESULTS -- SUMMARY -- REFERENCES -- Chapter 17. CHROMOSOME BREAKAGE ASSOCIATED WITH VIRUSES AND DNA INHIBITORS -- INTRODUCTION -- ROUS SARCOMA -- MEASLES -- DEOXYADENOSINE AND CYTOSINE ARABINOSIDE -- ROUS VIRUS AND HUMAN LEUCOCYTE CULTURES -- SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES -- Chapter 18. QUANTITATION AND AUTOMATION OF CHROMOSOMAL DATA WITH SPECIAL REFERENCE TO THE CHROMOSOMES OF THE HAMSHIRE PIG -- INTRODUCTION -- MATERIALS AND METHODS -- RESULTS -- DISCUSSION -- SUMMARY -- REFERENCES -- AUTHOR INDEX.
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  • 3
    Online Resource
    Online Resource
    San Diego :Elsevier Science & Technology,
    Keywords: Cytology. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (449 pages)
    Edition: 1st ed.
    ISBN: 9781483282015
    Language: English
    Note: Front Cover -- The Interpretation of Ultrastructure -- Copyright Page -- Table of Contents -- LIST OF CONTRIBUTORS -- PREFACE -- CHAPTER 1. CHEMICAL FIXATIVES FOR ELECTRON MICROSCOPY -- CONCLUSIONS -- SUMMARY -- REFERENCES -- DISCUSSION -- REFERENCES TO DISCUSSION -- CHAPTER 2. WATER-SOLUBLE EMBEDDING MEDIA FOR ULTRASTRUCTURAL CYTOCHEMISTRY -- INTRODUCTION -- MATERIALS AND METHODS -- OBSERVATIONS -- DISCUSSION -- SUMMARY -- REFERENCES -- DISCUSSION -- REFERENCES TO DISCUSSION -- CHAPTER 3. CRITICAL EVALUATION OF ULTRASTRUCTURAL PATTERNS WITH RESPECT TO FIXATION -- SUMMARY -- REFERENCES -- DISCUSSION -- CHAPTER 4. INTERPRETATION OF ULTRASTRUCTURE IN THE CELL NUCLEUS -- SUMMARY -- REFERENCES -- DISCUSSION -- REFERENCES TO DISCUSSION -- CHAPTER 5. CORRELATION OF ELECTRON MICROSCOPE AND X-RAY DIFFRACTION DATA IN ULTRASTRUCTURE STUDIES OF LIPOPROTEIN MEMBRANE SYSTEMS -- SUMMARY -- REFERENCES -- CHAPTER 6. QUANTITATIVE ELECTRON MICROSCOPY -- INTRODUCTION -- DISCUSSION -- SUMMARY -- REFERENCES -- CHAPTER 7. CYTOLOGY AND MICROCYTOLOGY OF LIVING AND FIXED CYTOPLASMIC CONSTITUENTS IN THE EGGS OF TUBIFEX AND THE CELL OF AMOBEA PROTEUS -- INTRODUCTION -- SUMMARY -- REFERENCES -- CHAPTER 8. LIGHT AND ELECTRON MICROSCOPIC STUDY OF MEMBRANOUS CYTOPLASMIC ORGANELLES -- INTRODUCTION -- SUMMARY -- REFERENCES -- DISCUSSION -- CHAPTER 9. NUCLEOSIDEPHOSPHATASE ACTIVITIES OF CYTOMEMBRANES -- CYTOCHEMICAL METHODS FOR ENZYME ACTIVITIES: MICROSCOPIC BIOCHEMISTRY -- PLASMA MEMBRANE -- ENDOPLASMIC RETICULUM -- THE GOLGI APPARATUS -- GOLGI APPARATUS AND LYSOSOMES -- SECRETORY GRANULES AND LYSOSOMES -- POSSIBLE ROLES OF NUCLEOSIDEPHOSPHATASES IN CYTOMEMBRANES -- POSSIBLE FUNCTIONAL SIGNIFICANCE OF THE INTIMATE TOPOGRAPHICAL RELATION BETWEEN LYSOSOMES AND GOLGI LAMELLAE -- DYNAMIC STEADY STATE: MEMBRANE FLOW IN ENDOPLASMIC RETICULUM, GOLGI APPARATUS AND LYSOSOMES. , CONCLUDING REMARKS -- SUMMARY -- REFERENCES -- CHAPTER 10. COMBINATION OF CYTOCHEMICAL STAINING METHODS FOR ENZYME LOCALIZATION WITH ELECTRON MICROSCOPY -- SUMMARY -- REFERENCES -- CHAPTER 11. NUCLEOPROTEIN LOCALIZATION IN ELECTRON MICROGRAPHS: METAL BINDING AND RADIOAUTOGRAPHY -- INTRODUCTION -- MATERIALS AND METHODS -- SUMMARY -- REFERENCES -- DISCUSSION -- REFERENCES -- CHAPTER 12. THE STUDY OF NATURAL AND ARTIFICIAL DNA-PLASMS BY THIN SECTIONS -- INTRODUCTION -- CONCLUSIONS AND DISCUSSION -- SUMMARY -- REFERENCES -- DISCUSSION -- REFERENCES FOR THE DISCUSSION -- CHAPTER 13. NEGATIVE STAINING AND ITS USE IN THE STUDY OF VIRUSES AND THEIR SEROLOGICAL REACTIONS -- RESOLUTION AND CONTRAST -- INCREASING INSTRUMENTAL RESOLUTION BY SHADOWCASTING -- INCREASING RESOLUTION OF SPECIMEN PREPARATION -- NEGATIVE STAINING IN THEORY AND PRACTICE -- RESULTS AND DISCUSSION -- SUMMARY -- REFERENCES -- CHAPTER 14. AN ASSESSMENT OF NEGATIVE STAINING TECHNIQUES FOR REVEALING ULTRASTRUCTURE -- INTRODUCTION -- THE THEORY OF NEGATIVE STAINING -- THE PROPERTIES OF A GOOD NEGATIVE STAIN -- EXPERIMENTAL INVESTIGATION OF VARIOUS NEGATIVE STAINS -- THE BEST MATERIAL FOR A NEGATIVE STAIN -- CONTRAST LIMIT OF NEGATIVE STAINING -- STRUCTURES NOT SHOWN BY NEGATIVE STAINING -- STRUCTURAL SUBUNITS SHOWN BY NEGATIVE STAINING -- SUMMARY -- REFERENCES -- DISCUSSION -- CHAPTER 15. THE FINER STRUCTURE OF THE MITOTIC APPARATUS -- INTRODUCTION -- SUMMARY -- REFERENCES -- DISCUSSION -- CHAPTER 16. INTERPRETATION OF THE ULTRATEXTURE IN GROWING PLANT CELL WALLS -- INTRODUCTION -- ULTRATEXTURES OF PRIMARY CELL WALLS -- THEORIES OF PASSIVE ORIENTATION -- ACTIVE ORIENTATION -- SUMMARY -- REFERENCES -- CHAPTER 17. THE ELECTRON MICROSCOPY AND ELECTRON DIFFRACTION ANALYSIS OF NATURAL CELLULOSE -- INTRODUCTION -- SUMMARY -- REFERENCES -- DISCUSSION -- REFERENCES TO DISCUSSION. , CHAPTER 18. THE MOLECULAR STRUCTURE OF LIPID-WATER SYSTEMS AND CELL MEMBRANE MODELS STUDIED WITH THE ELECTRON MICROSCOPE -- INTRODUCTION -- RESULTS AND DISCUSSION -- SUMMARY -- REFERENCES -- DISCUSSION -- CHAPTER 19. THE EVOLUTION OF INTRACELLULAR PHOSPHOLIPID MEMBRANE SYSTEMS -- SUMMARY -- REFERENCES -- CHAPTER 20. RECOVERY OF VIRUS FROM THE BLOOD OF RATS WITH INDUCED LEUKAEMIA -- INTRODUCTION -- MATERIALS AND METHODS -- RESULTS -- DISCUSSION -- SUMMARY -- REFERENCES -- DISCUSSION -- CHAPTER 21. ELECTRON MICROSCOPY IN THE STUDY OF EMBRYONIC DIFFERENTIATION -- INTRODUCTION -- CYTOPLASMIC ARCHITECTURE AND DEVELOPMENTAL CAPACITIES IN EGGS AND EMBRYONIC CELLS -- ULTRASTRUCTURAL CHARACTERISTICS AS RELATED TO DETERMINATIVE EVENTS IN DEVELOPMENT -- CONCLUDING REMARKS -- SUMMARY -- REFERENCES -- DISCUSSION -- CHAPTER 22. NEW APPROACHES IN THE STUDY OF BIOLOGICAL ULTRASTRUCTURE BY HIGH-RESOLUTI ON ELECTRON MICROSCOPY -- SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES -- AUTHOR INDEX.
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  • 4
    Keywords: Cytology -- Congresses. ; Genetics -- Congresses. ; Embryology -- Congresses. ; Electronic books.
    Description / Table of Contents: Biological Organization at the Cellular and Supercellular Level provides information on some of the most intriguing problems of cell biology. This book discusses the models for gene function as well as the simple mechanisms found in bacteria. Organized into 14 chapters, this book begins with an overview of the model for the regulation of DNA replication. This text then examines the specific properties of an organism, which arise from its catalytic constitution. Other chapters consider the experiments to test whether enzyme induction is accompanied by an increase in the rate of synthesis of the specific messenger RNA corresponding to the structural gene that controls the induced enzyme. This book discusses as well the comparison of the properties of the two types of CO2-sensitive flies, namely, the non-stabilized and the stabilized. The final chapter deals with the morphological or structural aspects of biological organization. This book is a valuable resource for geneticists, embryologists, and cancerologists.
    Type of Medium: Online Resource
    Pages: 1 online resource (273 pages)
    Edition: 1st ed.
    ISBN: 9781483274256
    DDC: 574.87082
    Language: English
    Note: Front Cover -- Biological Organization at the Cellular and Supercellular Level -- Copyright Page -- Table of Contents -- LIST OF CONTRIBUTORS AND PARTICIPANTS -- PREFACE -- CHAPTER 1. ELEMENTS OF REGULATORY CIRCUITS IN BACTERIA -- SUMMARY -- INTRODUCTION -- REGULATION OP ENZYMATIC ACTIVITY: ALLOSTERIC EFFECTS -- REGULATION OF PROTEIN SYNTHESIS -- REGULATION OF DNA REPLICATION: THE "REPLICON" HYPOTHESIS -- CONCLUDING REMARKS -- REFERENCES -- CHAPTER 2. THE KINETIC STRUCTURE OF ORGANISMS -- SUMMARY -- INTRODUCTION -- THE BOUNDARIES OF AN ORGANISM -- THECELLAS AN OPEN SYSTEM -- CATALYTIC CONTROL OF THE STEADY STATE -- EQUIFINALITY AND THE RECORD OF PAST EVENTS -- FLUX CONTROL AND GENETIC REDUNDANCY -- SEQUENCE INTERACTIONS -- HISTORICAL AND GENIC DETERMINATION -- CONCLUSIONS -- REFERENCES -- CHAPTER 3. STIMULATION OF THE RATE OF SYNTHESIS OF SPECIFIC MESSENGER RNA AFTER ENZYME INDUCTION IN E. COLI -- SUMMARY -- INTRODUCTION -- BASE SEQUENCE COMPLEMENTARITY WITH HOMOLOGOUS DNA REGIONS AS A BASIS FOR THE DETECTION OF SPECIFIC MESSENGER RNA -- DETECTION OF THE mRNA SPECIFICALLY RELATED TO THE "GAL" REGION -- DETECTION OF THE mRNA SPECIFICALLY RELATED TO THE "LAC" REGION -- DISCUSSION -- ACKNOWLEDGMENTS -- REFERENCES -- CHAPTER 4. THE RELATIONSHIP OF THE HEREDITARY VIRUS OF DROSOPHILA TO ITS HOST -- SUMMARY -- REFERENCES -- CHAPTER 5. RELATIONSHIP BETWEEN CYTOPLASM AND CHROMOSOME IN THE TRANSMISSION OF MELANOTIC TUMOURS IN DROSOPHILA -- SUMMARY -- THE PHBNOTYPE AND ITS GENESIS -- TRANSMISSION OF CHARACTER -- DISCUSSION -- REFERENCES -- DISCUSSION -- CHAPTER 6. ASPECTS OF MUTUAL EXCLUSION IN TETRAHYMENA -- SUMMARY -- INTRODUCTION -- THE ORGANISM -- INTRA-LOCUS EXCLUSION -- INTER-LOCUS EXCLUSION -- INTER-ALLELIC EXCLUSION -- DISCUSSION -- REFERENCES. , CHAPTER 7. LOSS OF NUCLEAR POTENTIALITY IN THE SOMA VERSUS PRESERVATION OF NUCLEAR POTENTIALITY IN THE GERM LINE -- SUMMARY -- INTRODUCTION -- EXPERIMENT SWITH THE GALLMIDGE MAYETIOLA DESTRUCTOR (CECIDOMYIDAE) -- EXPERIMENTS WITH THE GERM LINE IN THE ANURA (AMPHIBIA ) -- EXPERIMENTS INVOLVING THE TRANSPLANTATION OF SOMATIC NUCLEI IN AMPHIBIA -- CONCLUSIONS -- REFERENCES -- CHAPTER 8. THE FOURTH MOMENT OF A CHARACTER DISTRIBUTION AS AN INDEX OF THE REGULATIVE EFFICIENCY OF THE GENETIC CODE -- SUMMARY -- I. DIFFERENCES IN KURTOSIS BETWEEN HATCHING TIME DISTRIBUTIONS IND, -- II. WHY SHOULD THE INTEGRATION OF THE GENETIC SYSTEM BE REFLECTED IN KURTOSIS? -- III. LEPTOKURTOSIS AND CHROMOSOMAL POLYMORPHISM IND -- IV. KURTOSIS AS AN INDICATION OF FITNESS -- ACKNO\VLEDGMENTS -- REFERENCES -- CHAPTER 9. ORIENTED CELL MOVEMENTS IN EMBRYOGENESIS -- SUMMARY -- INTRODUCTION -- CONTROL OF CELL MOVEMENTS -- DIRECTIONAL CONTROL -- MIGRATION OF PRECARDIAC MESODERM AS AN EXAMPLE OF CONTACT GUIDANCE -- REFERENCES -- CHAPTER 10. THE ROLE OF THE NUCLEIC ACIDS IN THE PROCESSES OF INDUCTION, REGULATION AND DIFFERENTIATION IN THE AMPHIBIAN EMBRYO AND THE UNICELLULAR ALGA, ACETABULARIA MEDITERRÁNEA -- SUMMARY -- INTRODUCTION -- EXPERIMENTAL EVIDENCE -- DISCUSSION -- ACKNOWLEDGMENT -- REFERENCES -- CHAPTER 11. THE ROLE OF REGIONAL SPECIFIC INDUCERS IN THE PRIMARY DETERMINATION AND DIFFERENTIATION OF AMPHIBIA -- SUMMARY -- INTRODUCTION -- FORMATION OF DEUTERENCEPHALIC INDUCTIONS BY CO-OPERATION OF TWO INDUCING FACTORS -- INACTIVATION OF INDUCING FACTORS B Y PROTEOLYTIC ENZYMES AND DIFFERENTIAL SENSITIVITY TO CHEMICAL AGENTS -- SPECIFIC ACTION VERSUS RELAIS-MECHANISM -- MECHANISM OF ACTION AT PRIMARY INDUCTION AND DIFFERENTIATION -- ACKNO\VLEDGMENT -- REFERENCES -- DISCUSSION -- CHAPTER 12. THE TRANSMISSION OF INFORMATION DURING PRIMARY EMBRYONIC INDUCTION -- SUMMARY. , INTRODUCTION -- THE TRANSMISSION OF INFORMATION -- THE TRANSMISSION OF MATERIALS -- THE RELEASE OF MATERIALS -- FINAL REMARKS -- REFERENCES -- DISCUSSION -- CHAPTER 13. SOME PROBLEMS OF DIFFERENTIATION AND INTEGRATION IN NEOPLASIA -- SUMMARY -- INTRODUCTION -- THE COURSE OF NEOPLASIA -- DIFFERENTIATION -- NEOPLASTIC DEVELOPMENT -- CONCLUSIONS -- REFERENCES -- CHAPTER 14. BIOLOGICAL ORGANIZATION: SUMMARIZING LECTURE -- CONCLUDING REMARKS -- REFERENCES -- Author Index.
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  • 5
    Online Resource
    Online Resource
    Saint Louis :Elsevier Science & Technology,
    Keywords: Cell division. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (352 pages)
    Edition: 1st ed.
    ISBN: 9781483262109
    DDC: 571.844
    Language: English
    Note: Front Cover -- Cell Growth and Cell Division -- Copyright Page -- Table of Contents -- LIST OF CONTRIBUTORS -- PREFACE -- CHAPTER 1. INDEPENDENT CYCLES OF CELL DIVISION AND OF DNA SYNTHESIS IN TETRAHYMENA -- INTRODUCTION -- THE PROBLEM -- RNA SYNTHESIS AND SYNCHRONOUS DIVISION -- ASYNCHRONOUS DNA SYNTHESIS AND SYNCHRONOUS DIVISION -- DISCUSSION -- SUMMARY -- REFERENCES -- CHAPTER 2. CELL DIVISION AND GROWTH STUDIES ON SYNCHRONIZED FLAGELLATES -- INTRODUCTION -- CONTINUOUS SYNCHRONIZED CULTURES -- OXYGEN CONSUMPTION DURING DIVISION -- STRUCTURES IN ASTASIA -- CELL DIVISION -- CELL FISSION AND THE CELL SURFACE -- SUMMARY -- REFERENCES -- CHAPTER 3. MACRONUCLEAR VARIABILITY OF BLEPHARISMA ASSOCIATED WITH GROWTH -- INTRODUCTION -- SPECIES AND STRAINS USED IN THIS STUDY -- NUTRITIONAL STUDIES -- TEMPERATURE STUDIES -- PRESSURE STUDIES -- STUDIES OF BLEPHARISMA GROWTH -- SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES -- CHAPTER 4. FACETS OF INTRACELLULAR REGULATION OF MEIOSIS AND MITOSIS -- INTRODUCTION -- EXPERIMENTAL STUDIES -- THE MEIOTIC CYCLE IN TRILLIUM ERECTUM -- DEVELOPMENTAL STAGE AND SUSCEPTIBILITY TO INHIBITION -- NATURE OF UPSETS IN THE MEIOTIC CYCLE -- UPSET OF MEIOSIS I -- UPSET OF MEIOSIS II -- CHROMOSOME STRUCTURE -- AUTONOMY AT THE MOLECULAR LEVEL -- SUMMARY -- REFERENCES -- CHAPTER 5. NUCLEOTIDE METABOLISM AND RIBOSOMAL ACTIVITY DURING SYNCHRONIZED CELL DIVISION -- INTRODUCTION -- RESULTS AND DISCUSSION -- CONCLUSIONS -- SUMMARY -- ACKNOWLEDGMENT -- REFERENCES -- CHAPTER 6. THE INTEGRATION OF PROTEIN AND RIBONUCLEIC ACID SYNTHESIS IN BACTERIA -- INTRODUCTION -- BACKGROUND -- RIBOSOMAL AND TRANSFER RNA -- THE CONTROL OF RNA SYNTHESIS -- OUTLOOK -- SUMMARY -- REFERENCES -- CHAPTER 7. RNA AND PROTEIN REPLACEMENT IN THE NUCLEUS DURING GROWTH AND DIVISION AND THE CONSERVATION OF COMPONENTS IN THE CHROMOSOME -- INTRODUCTION. , MATERIALS AND METHODS -- RESULTS -- DISCUSSION AND CONCLUSIONS -- SUMMARY -- REFERENCES -- CHAPTER 8. RNA AND PROTEIN IN NUCLEOCYTOPLASMIC INTERACTIONS -- RNA IN NUCLEOCYTOPLASMIC COMMUNICATION -- PROTEIN IN NUCLEOCYTOPLASMIC INTERACTIONS -- SUMMARY -- REFERENCES -- CHAPTER 9. THE CELL CYCLE OF A FISSION YEAST -- SUMMARY -- REFERENCES -- CONTROL MECHANISMS FOR CHROMOSOME REPRODUCTION IN THE CELL CYCLE -- INTRODUCTION -- LEVELS OF OPERATION OF CONTROL MECHANISMS -- PATTERNS OF CONTROL IN REPLICATION OF CHROMOSOMAL DNA -- SUMMARY -- REFERENCES -- CHAPTER 10. LES FACTEURS DE LA CROISSANCE DE TUMEURS ASSOCIÉES Á DES ORGANES EMBRYONNAIRES DE POULET -- CULTURES DE TUMEURS ANIMALES ET DE SOUCHES CELLULAIRES D'ORIGINES DIVERSES -- CULTURES DE TUMEURS HUMAINES FRAÎCHES -- CONCLUSIONS -- RÉSUMÉ -- SUMMARY -- BIBLIOGRAPHIE -- CHAPTER 11. DYNAMISME DE L'ANA-TELOPHASE ET CYTODIERESE -- INTRODUCTION -- DIVISION NORMALE DE L'OEUF D'ARTEMIA -- DIVISION DES OEUFS ACTIVES -- INFLUENCE DES RÉACTIFS DES PROTÉINES SULFHYDRILEES SUR LA DIVISION -- CONCLUSION -- RÉSUMÉ -- SUMMARY -- BIBLIOGRAPHIE -- CHAPTER 12. SOME OBSERVATIONS CONCERNING CELL MOVEMENT AND CELL CLEAVAGE -- SUMMARY -- REFERENCES -- CHAPTER 13. A NEW THEORY ON THE MECHANISM OF CELL DIVISION -- INTRODUCTION -- METHODS USED -- SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES -- CHAPTER 14. FORCE OF CLEAVAGE OF THE DIVIDING SEA URCHIN EGG -- INTRODUCTION -- PART I -- PART II -- PART III -- CONCLUSION -- SUMMARY -- REFERENCES -- CHAPTER 15. SOME PROBLEMS OF CLEAVAGE IN RELATION TO THE CELL MEMBRANE -- INTRODUCTION -- THE RELATION BETWEEN THE MITOTIC APPARATUS AND CLEAVAGE -- THE CHANGES IN THE CELL MEMBRANE DURING CLEAVAGE -- THE BIOCHEMICAL BASIS OF CLEAVAGE -- SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES. , CHAPTER 16. APPLICATION DE TECHNIQUES CYTOLOGIQUES MODERNES À L'ÉTUDE DU PROBLÉME DES AMITOSES DANS LES BOURGEONS MUSCULAIRES -- MATÉRIEL ET TECHNIQUES -- OBSERVATIONS PERSONNELLES -- CONCLUSIONS GÉNÉRALES ET RÉSUMÉ -- SUMMARY -- BIBLIOGRAPHIE -- CHAPTER 17. LE PROBLÈME DE L'AMITOSE -- SUMMARY -- BIBLIOGRAPHIE -- CHAPTER 18. CYTOPLASMIC DEOXYRIBONUCLEIC ACIDS: THEIR MITOCHONDRIAL LOCALIZATION AND SYNTHESIS IN SOMATIC CELLS UNDER EXPERIMENTAL CONDITIONS AND DURING THE NORMAL CELL CYCLE IN RELATION TO THE PREPARATION FOR MITOSIS -- INTRODUCTION -- POSITIVE FEULGEN REACTION IN THE CYTOPLASM -- QUANTITATIVE ESTIMATIONS OF DNA -- THE CYTOPLASMIC DNA IS CONFINED TO MODIFIED MITOCHONDRIA -- HISTORADIOAUTOGRAPHIC OBSERVATIONS -- REVERSIBILITY OF THE EFFECTS OF THE ACID DNASE -- OTHER EXPERIMENTAL PROCEDURES THAT CAUSE CYTOPLASMIC DNA -- HYPOTHESES AND SUGGESTIONS CONCERNING THE DNA LOCALIZATION AND SYNTHESIS INSIDE THE CYTOPLASM -- SUMMARY -- REFERENCES -- AUTHOR INDEX.
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  • 6
    Online Resource
    Online Resource
    San Diego :Elsevier Science & Technology,
    Keywords: Cytogenetics. ; Tissue culture. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (326 pages)
    Edition: 1st ed.
    ISBN: 9781483262116
    Language: English
    Note: Front Cover -- Cytogenetics of Cells in Culture -- Copyright Page -- Table of Contents -- Dedication -- LIST OF CONTRIBUTORS -- PREFACE -- CHAPTER 1. CYTOGENETIC ALTERATIONS IN MIXED CULTURES OF MAMMALIAN SOMATIC CELLS IN VITRO -- INTRODUCTION -- CONCLUSIONS AND SUMMARY -- REFERENCES -- CHAPTER 2. HYBRIDIZATION OF SOMATIC CELLS IN VITRO -- INTRODUCTION -- HYBRIDS OBTAINED UP TO DATE -- SELECTION AND VIABILITY OF HYBRIDS -- CHROMOSOME SEGREGATION -- SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES -- CHAPTER 3. SELECTION PRESSURE IN MAMMALIAN CELL POPULATIONS -- INTRODUCTION -- THE CONTRIBUTION OF ERROR -- NORMAL SOMATIC TISSUES -- IRRADIATED SOMATIC TISSUES -- DISCUSSION -- SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES -- CHAPTER 4. PHASE CINEMATOGRAPHY STUDIES ON THE EFFECTS OF RADIATION AND OF SOME CHEMICALS ON CELLS AND CHROMOSOMES -- INTRODUCTION -- CYTOLOGICAL RESPONSES OF VARIOUS CELLULAR ORGANELLES TO CERTAIN CHEMICALS -- BEHAVIOR OF CHROMOSOMES IN GRASSHOPPER SPERMATOCYTES FOLLOWING ß-IRRADIATTON -- BEHAVIOR OF THE TELOPHASE CHROMOSOME GROUP IN SILKWORM SPERMATOCYTES FOLLOWING ULTRAVIOLET MICROBEAM IRRADIATION -- GENERAL SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES -- CHAPTER 5. CELLULAR INTERPRETATION OF ASPECTS OF THE ACUTE MAMMALIAN RADIATION SYNDROME -- INTRODUCTION -- DIFFICULTIES IN INTERPRETATION OF THE RADIATION SYNDROME -- SURVIVAL CURVES FOR MAMMALIAN CELLS IN VITRO -- INTERPRETATION OF THE ACUTE WHOLE-BODY RADIATION SYNDROME ON THE BASIS OF CELL REPRODUCTIVE KILLING -- FURTHER EXPERIMENTAL EVIDENCE FOR THIS FORMULATION -- APPLICATION OF THESE CONSIDERATIONS TO OTHER ASPECTS OF THE WHOLE-BODY RADIATION SYNDROME -- IDENTIFICATION OF THE SITE WITHIN THE CELL RESPONSIBLE FOR THE LETHAL ACTION -- SUMMARY -- REFERENCES -- CHAPTER 6. RETENTION OF EUPLOIDY AND MUTAGENICITY OF HETEROCHROMATIN IN CULTURE -- INTRODUCTION -- SEX HETEROCHROMATIN. , RETENTION OF EUPLOIDY M VITRO -- EUPLOID SPONTANEOUS NEOPLASIA -- INDUCED MALIGNANCIES -- IN VIVO TRANSPLANTATION OF POLYOMA-TRANSFORMED EUPLOID CELL LINES -- SPONTANEOUS TUMOR -- SPECIFICITY OF BUDR FOR SECONDARY CONSTRICTIONS -- TELOMERIC ASSOCIATION -- LESION OF SECONDARY CONSTRICTIONS OF X-CHROMOSOMES OF POLYOMA-TRANSFORMED CELLS -- CHARACTERISTICS OF AN ADENOVIRUS -- SUMMARY -- ADDENDUM -- REFERENCES -- CHAPTER 7. THE NATURE, ORIGIN, AND GENETIC IMPLICATIONS OF STRUCTURAL ABNORMALITIES OF THE SEX CHROMOSOMES IN MAN -- INTRODUCTION -- STRUCTURAL ABNORMALITIES OF THE X-CHROMOSOME -- ABNORMALITIES OF THE Y-CHROMOSOME -- SUMMARY -- ACKNOWLEDGMENT -- REFERENCES -- CHAPTER 8. CHROMOSOME STUDIES IN THE GENERAL POPULATION -- INTRODUCTION -- COMPOSITION OF THE STUDY POPULATION -- METHOD -- GENERAL POPULATION -- DISCUSSION -- SUMMARY -- REFERENCES -- CHAPTER 9. ALTÉRATIONS CHROMOSOMIQUES DANS DES CELLULES CULTIVÉES EN PRÉSENCE D'EXTRAITS TISSULAIRES HÉTÉROSPÉCIFIQUES -- INTRODUCTION -- MATÉRIEL ET TECHNIQUES -- DISCUSSION -- RÉSUMÉ -- SUMMARY -- BIBLIOGRAPHIE -- CHAPTER 10. CHROMOSOMAL STUDIES ON HUMAN LEUCOCYTES FOLLOWING TREATMENT WITH RADIOACTIVE IODINE IN VIVO AND IN VITRO -- INTRODUCTION -- MATERIALS AND METHODS -- RESULTS -- DISCUSSION -- SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES -- CHAPTER 11. THE LIMITED IN VITRO LIFETIME OF HUMAN DIPLOID CELL STRAINS -- INTRODUCTION -- MATERIALS AND METHODS -- EXPERIMENTAL RESULTS -- DISCUSSION -- SUMMARY -- REFERENCES -- CHAPTER 12. REGULATION OF DNA REPLICATION AND VARIEGATION-TYPE POSITION EFFECTS -- PATTERNS OF ASYNCHRONOUS REPLICATION -- LATE REPLICATION, HETEROPYCNOSIS, AND GENETIC INACTIVATION -- TESTS OF THE INACTIVATION HYPOTHESIS -- INDUCTION OF THE REPRESSED STATE -- HYPOTHESIS FOR A GENERAL REPRESSOR SYSTEM -- SUMMARY AND PREDICTIONS -- ACKNOWLEDGMENT -- REFERENCES. , CHAPTER 13. IDENTIFICATION AND CHARACTERIZATION OF HUMAN CHROMOSOMES BY DNA REPLICATION SEQUENCE -- INTRODUCTION -- CHROMOSOMAL CHARACTERISTICS -- COMMENTS -- SUMMARY -- REFERENCES -- CHAPTER 14. MUTAGENIC RESPONSE OF HUMAN SOMATIC CELL LINES -- INTRODUCTION -- MATERIALS AND METHODS -- RESULTS AND DISCUSSION -- CONCLUSIONS AND SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES -- CHAPTER 15. DNA SYNTHESIS AND CHROMOSOMAL MORPHOLOGY OF CHINESE HAMSTER CELLS CULTURED IN MEDIA CONTAINING W-DEACETYL-N-METHYLCOLCHICINE ( COLCEMID ) -- INTRODUCTION -- PROCEDURES -- EXPERIMENTAL DATA -- DISCUSSION -- SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES -- CHAPTER 16. HETEROCHROMATIN IN THE HUMAN MALE -- INTRODUCTION -- MATERIALS AND METHODS -- RESULTS -- SUMMARY -- REFERENCES -- CHAPTER 17. CHROMOSOME BREAKAGE ASSOCIATED WITH VIRUSES AND DNA INHIBITORS -- INTRODUCTION -- ROUS SARCOMA -- MEASLES -- DEOXYADENOSINE AND CYTOSINE ARABINOSIDE -- ROUS VIRUS AND HUMAN LEUCOCYTE CULTURES -- SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES -- CHAPTER 18. QUANTITATION AND AUTOMATION OF CHROMOSOMAL DATA WITH SPECIAL REFERENCE TO THE CHROMOSOMES OF THE HAMSHIRE PIG (SUS SCROFA) -- INTRODUCTION -- MATERIALS AND METHODS -- RESULTS -- DISCUSSION -- SUMMARY -- REFERENCES -- AUTHOR INDEX.
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  • 7
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 22 (1950), S. 1337-1338 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: In a 2-year double-blind placebo controlled study an immunological evaluation was carried out on 33 patients (15 males, 18 females, mean age 29.2 years) with mite-induced perennial rhinitis who were submitted to specific immunotherapy (IT) with an alginate-conjugated extract of D. pteronyssinus. The behaviour of IgE, IgG, IgG1, and IgG4, antibodies specific to D. pteronyssinus and its major allergen Der p1, was characterized by assessment of their changes m serum, and changes in IgG in nasal secretions during the treatment. The placebo-treated patients did not show any significant variation in the levels of specific antibodies, while in the actively treated patients we found; a statistically significant decrease (P 〈 0.005) of specific IgE, a statistically significant increase of specific IgG (P 〈 0.005), IgG1, (P 〈 0.005) and IgG4 (P 〈 0.005) in serum and a statistically significant increase (P 〈 0.001) of specific IgG in nasal secretions. The IgG response showed an early relative predominance of the IgG1 subclass and a late absolute predominance of IgG4 subclass, that confirmed the model of IgG4 restriction in prolonged allergen stimulation. No correlation was found between immunological and clinical data.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: A study of 10 anaesthetised patients placed in the lateral position for thoracoscopic surgery assessed whether transient increases in pleural pressure on the side of the non-ventilated lung might increase the speed at which gas vents from that lung. The transient increases in pleural pressure were generated by the mediastinal displacement that occurs with each inspiratory phase of positive pressure ventilation of the dependent lung. When combined with a unidirectional valve allowing gas to flow out of the non-ventilated lung, and a second valve allowing ambient airflow into, but not out of, the thoracic cavity via an initial thoracoscopy access site, this mediastinal displacement could conceivably serve to ‘pump’ gas out of the non-ventilated lung. Using the four different combinations of valve inclusion or omission, the volume of gas that vented from the non-ventilated lung into a measuring spirometer was recorded during a 120-s measurement sequence. It was found that the speed of venting was not increased by the transient increases in pleural pressure, and that in all but one of a total of 34 measurement sequences, venting had ceased by the end of the sequence. Gas venting was a mean (SD) of 85.5 (11.9)% complete in 25 s (five breaths), and 96.6 (6.1)% complete in 60 s. This prompt partial lung collapse very likely reflected the passive elastic recoil of the lung, while the failure of transient increases in pleural pressure to result in ongoing venting of gas was probably a consequence of airways closure as the lung collapsed. It is concluded that techniques that aim to speed lung collapse by increasing pleural pressure are unlikely to be effective.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 161 (1948), S. 931-931 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IMPROVED methods have been sought for the isolation and preparation of the purine and pyrimidine nucleosides of yeast ribosenucleic acid as a preliminary to the study of the constitution of the nucleic acids of normal and malignant tissues. Bredereck et al.1 were able to prepare adenosine ...
    Type of Medium: Electronic Resource
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