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  • 1
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    Gene expression during the life cycle of Drosophila melanogaster (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-09-28
    Description: Molecular genetic studies of Drosophila melanogaster have led to profound advances in understanding the regulation of development. Here we report gene expression patterns for nearly one-third of all Drosophila genes during a complete time course of development. Mutations that eliminate eye or germline tissue were used to further analyze tissue-specific gene expression programs. These studies define major characteristics of the transcriptional programs that underlie the life cycle, compare development in males and females, and show that large-scale gene expression data collected from whole animals can be used to identify genes expressed in particular tissues and organs or genes involved in specific biological and biochemical processes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arbeitman, Michelle N -- Furlong, Eileen E M -- Imam, Farhad -- Johnson, Eric -- Null, Brian H -- Baker, Bruce S -- Krasnow, Mark A -- Scott, Matthew P -- Davis, Ronald W -- White, Kevin P -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2002 Sep 27;297(5590):2270-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, Stanford University, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12351791" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Animals ; Cluster Analysis ; Drosophila Proteins/genetics/physiology ; Drosophila melanogaster/embryology/*genetics/*growth & development ; Embryo, Nonmammalian/physiology ; Female ; *Gene Expression ; Gene Expression Profiling ; Gene Expression Regulation, Developmental ; *Genes, Insect ; Germ Cells/physiology ; Larva/genetics ; Life Cycle Stages/*genetics ; Male ; Oligonucleotide Array Sequence Analysis ; Organ Specificity ; Pupa/genetics ; RNA, Messenger/genetics/metabolism ; Sex Characteristics ; Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Scientific whaling: source of illegal products for market? (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-02-24
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baker, C S -- Lento, G M -- Cipriano, F -- Dalebout, M L -- Palumbi, S R -- New York, N.Y. -- Science. 2000 Dec 1;290(5497):1695-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11186388" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Commerce ; *Conservation of Natural Resources ; Ecosystem ; International Cooperation ; Japan ; *Whales
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    The history of South American tropical precipitation for the past 25,000 years (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-02-07
    Description: Long sediment cores recovered from the deep portions of Lake Titicaca are used to reconstruct the precipitation history of tropical South America for the past 25,000 years. Lake Titicaca was a deep, fresh, and continuously overflowing lake during the last glacial stage, from before 25,000 to 15,000 calibrated years before the present (cal yr B.P.), signifying that during the last glacial maximum (LGM), the Altiplano of Bolivia and Peru and much of the Amazon basin were wetter than today. The LGM in this part of the Andes is dated at 21,000 cal yr B.P., approximately coincident with the global LGM. Maximum aridity and lowest lake level occurred in the early and middle Holocene (8000 to 5500 cal yr B.P.) during a time of low summer insolation. Today, rising levels of Lake Titicaca and wet conditions in Amazonia are correlated with anomalously cold sea-surface temperatures in the northern equatorial Atlantic. Likewise, during the deglacial and Holocene periods, there were several millennial-scale wet phases on the Altiplano and in Amazonia that coincided with anomalously cold periods in the equatorial and high-latitude North Atlantic, such as the Younger Dryas.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baker, P A -- Seltzer, G O -- Fritz, S C -- Dunbar, R B -- Grove, M J -- Tapia, P M -- Cross, S L -- Rowe, H D -- Broda, J P -- New York, N.Y. -- Science. 2001 Jan 26;291(5504):640-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Duke University, Division of Earth and Ocean Sciences, Durham, NC 27708, USA. pbaker@geo.duke.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11158674" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Atmosphere ; Bolivia ; Diatoms ; *Fresh Water ; *Geologic Sediments ; Peru ; Plankton ; *Rain ; Temperature ; Time ; *Tropical Climate
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Matriarchs as repositories of social knowledge in African elephants (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-04-21
    Description: Despite widespread interest in the evolution of social intelligence, little is known about how wild animals acquire and store information about social companions or whether individuals possessing enhanced social knowledge derive biological fitness benefits. Using playback experiments on African elephants (Loxodonta africana), we demonstrated that the possession of enhanced discriminatory abilities by the oldest individual in a group can influence the social knowledge of the group as a whole. These superior abilities for social discrimination may result in higher per capita reproductive success for female groups led by older individuals. Our findings imply that the removal of older, more experienced individuals, which are often targets for hunters because of their large size, could have serious consequences for endangered populations of advanced social mammals such as elephants and whales.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McComb, K -- Moss, C -- Durant, S M -- Baker, L -- Sayialel, S -- New York, N.Y. -- Science. 2001 Apr 20;292(5516):491-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Experimental Psychology, School of Biological Sciences, University of Sussex, Brighton BN1 9QG, UK. karenm@biols.susx.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11313492" target="_blank"〉PubMed〈/a〉
    Keywords: *Aging ; Animals ; *Behavior, Animal ; Biological Evolution ; Conservation of Natural Resources ; *Discrimination (Psychology) ; *Elephants/physiology ; Exploratory Behavior ; Female ; Kenya ; Reproduction ; Social Behavior ; *Vocalization, Animal
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Protein structure prediction and structural genomics (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-10-06
    Description: Genome sequencing projects are producing linear amino acid sequences, but full understanding of the biological role of these proteins will require knowledge of their structure and function. Although experimental structure determination methods are providing high-resolution structure information about a subset of the proteins, computational structure prediction methods will provide valuable information for the large fraction of sequences whose structures will not be determined experimentally. The first class of protein structure prediction methods, including threading and comparative modeling, rely on detectable similarity spanning most of the modeled sequence and at least one known structure. The second class of methods, de novo or ab initio methods, predict the structure from sequence alone, without relying on similarity at the fold level between the modeled sequence and any of the known structures. In this Viewpoint, we begin by describing the essential features of the methods, the accuracy of the models, and their application to the prediction and understanding of protein function, both for single proteins and on the scale of whole genomes. We then discuss the important role that protein structure prediction methods play in the growing worldwide effort in structural genomics.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baker, D -- Sali, A -- GM 54762/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2001 Oct 5;294(5540):93-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of Washington, Seattle, WA 98195, USA. dabaker@u.washington.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11588250" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Binding Sites ; *Computational Biology ; Computer Simulation ; Databases, Factual ; *Genomics ; Humans ; Internet ; *Models, Molecular ; *Protein Conformation ; Protein Folding ; Protein Structure, Tertiary ; Proteins/*chemistry/genetics/physiology ; Sequence Alignment ; Software ; Templates, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Prevention of organ allograft rejection by a specific Janus kinase 3 inhibitor (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-11-01
    Description: Because of its requirement for signaling by multiple cytokines, Janus kinase 3 (JAK3) is an excellent target for clinical immunosuppression. We report the development of a specific, orally active inhibitor of JAK3, CP-690,550, that significantly prolonged survival in a murine model of heart transplantation and in cynomolgus monkeys receiving kidney transplants. CP-690,550 treatment was not associated with hypertension, hyperlipidemia, or lymphoproliferative disease. On the basis of these preclinical results, we believe JAK3 blockade by CP-690,550 has potential for therapeutically desirable immunosuppression in human organ transplantation and in other clinical settings.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Changelian, Paul S -- Flanagan, Mark E -- Ball, Douglas J -- Kent, Craig R -- Magnuson, Kelly S -- Martin, William H -- Rizzuti, Bonnie J -- Sawyer, Perry S -- Perry, Bret D -- Brissette, William H -- McCurdy, Sandra P -- Kudlacz, Elizabeth M -- Conklyn, Maryrose J -- Elliott, Eileen A -- Koslov, Erika R -- Fisher, Michael B -- Strelevitz, Timothy J -- Yoon, Kwansik -- Whipple, David A -- Sun, Jianmin -- Munchhof, Michael J -- Doty, John L -- Casavant, Jeffrey M -- Blumenkopf, Todd A -- Hines, Michael -- Brown, Matthew F -- Lillie, Brett M -- Subramanyam, Chakrapani -- Shang-Poa, Chang -- Milici, Anthony J -- Beckius, Gretchen E -- Moyer, James D -- Su, Chunyan -- Woodworth, Thasia G -- Gaweco, Anderson S -- Beals, Chan R -- Littman, Bruce H -- Fisher, Douglas A -- Smith, James F -- Zagouras, Panayiotis -- Magna, Holly A -- Saltarelli, Mary J -- Johnson, Kimberly S -- Nelms, Linda F -- Des Etages, Shelley G -- Hayes, Lisa S -- Kawabata, Thomas T -- Finco-Kent, Deborah -- Baker, Deanna L -- Larson, Michael -- Si, Ming-Sing -- Paniagua, Ricardo -- Higgins, John -- Holm, Bari -- Reitz, Bruce -- Zhou, Yong-Jie -- Morris, Randall E -- O'Shea, John J -- Borie, Dominic C -- New York, N.Y. -- Science. 2003 Oct 31;302(5646):875-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Immunology Group, Department of Antibacterials and Immunology, Pfizer Global Researchand Development, Groton, CT 06340, USA. paul_s_changelian@groton.pfizer.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14593182" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Enzyme Inhibitors/administration & dosage/pharmacology/therapeutic use/toxicity ; Gene Expression Regulation/drug effects ; Graft Rejection/*prevention & control ; Graft Survival/drug effects ; *Heart Transplantation ; Humans ; Immunosuppressive Agents/administration & dosage/*pharmacology/therapeutic ; use/toxicity ; Interleukin-2/immunology ; Janus Kinase 3 ; *Kidney Transplantation ; Lymphocyte Activation/drug effects ; Lymphocyte Count ; Lymphocyte Culture Test, Mixed ; Lymphocyte Subsets/drug effects ; Macaca fascicularis ; Mice ; Mice, Inbred C57BL ; Mice, Inbred DBA ; Myocardium/metabolism ; Piperidines ; Protein-Tyrosine Kinases/*antagonists & inhibitors/metabolism ; Pyrimidines/administration & dosage/*pharmacology/therapeutic use/toxicity ; Pyrroles/administration & dosage/*pharmacology/therapeutic use/toxicity ; Transplantation, Heterotopic ; Transplantation, Homologous ; Tumor Cells, Cultured
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Oscillatory patterns in sympathetic neural discharge and cardiovascular variables during orthostatic stimulus (2000)
    In:  Other Sources
    Details
    Publication Date: 2011-08-24
    Description: BACKGROUND: We tested the hypothesis that a common oscillatory pattern might characterize the rhythmic discharge of muscle sympathetic nerve activity (MSNA) and the spontaneous variability of heart rate and systolic arterial pressure (SAP) during a physiological increase of sympathetic activity induced by the head-up tilt maneuver. METHODS AND RESULTS: Ten healthy subjects underwent continuous recordings of ECG, intra-arterial pressure, respiratory activity, central venous pressure, and MSNA, both in the recumbent position and during 75 degrees head-up tilt. Venous samplings for catecholamine assessment were obtained at rest and during the fifth minute of tilt. Spectrum and cross-spectrum analyses of R-R interval, SAP, and MSNA variabilities and of respiratory activity provided the low (LF, 0.1 Hz) and high frequency (HF, 0.27 Hz) rhythmic components of each signal and assessed their linear relationships. Compared with the recumbent position, tilt reduced central venous pressure, but blood pressure was unchanged. Heart rate, MSNA, and plasma epinephrine and norepinephrine levels increased, suggesting a marked enhancement of overall sympathetic activity. During tilt, LF(MSNA) increased compared with the level in the supine position; this mirrored similar changes observed in the LF components of R-R interval and SAP variabilities. The increase of LF(MSNA) was proportional to the amount of the sympathetic discharge. The coupling between LF components of MSNA and R-R interval and SAP variabilities was enhanced during tilt compared with rest. CONCLUSIONS: During the sympathetic activation induced by tilt, a similar oscillatory pattern based on an increased LF rhythmicity characterized the spontaneous variability of neural sympathetic discharge, R-R interval, and arterial pressure.
    Keywords: Life Sciences (General)
    Type: Circulation (ISSN 0009-7322); Volume 101; 8; 886-92
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  • 8
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    Biosensors for Real-Time Monitoring of Radiation-Induced Biologic Effects in Space (2002)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: This work seeks to develop cellular biosensors based on dendritic polymers. Nanoscale polymer structures less than 20 nm in diameter will be used as the basis of the biosensors. The structures will be designed to target into specific cells of an astronaut and be able to monitor health issues such as exposure to radiation. Multiple components can be assembled on the polymers including target directors, analytical devices (such as molecular probes), and reporting agents. The reporting will be accomplished through fluorescence signal monitoring, with the use of multispectral analysis for signal interpretation. These nanosensors could facilitate the success and increase the safety of extended space flight. The design and assembly of these devices has been pioneered at the Center for Biologic Nanotechnology in the University of Michigan. This period, synthesis of the test-bed biosensors continued. Studies were performed on the candidate fluorescent dyes to determine which might be suitable for the biosensor under development. Development continued on producing an artificial capillary bed as a tool for the use in the production of the fluorescence signal monitor. Work was also done on the in vitro multispectral analysis system, which uses the robotic microscope.
    Keywords: Life Sciences (General)
    Type: NAS2-02069-4
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  • 9
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    Antigenic Protein In Microgravity-Grown Human Mixed Mullerian Tumor (LN1) Cells Preserved In RNA Stabilizing Agent (2004)
    In:  Other Sources
    Details
    Publication Date: 2019-07-18
    Description: Cells treated with RNAlater(TradeMark) have previously been shown to contain antigenic proteins that can be visualized using Western blot analysis. These proteins seem to be stable for several months when stored in RNA stabilizer at 4 C. Antigenic protein can be recovered from cells that have been processed using an Ambion RNAqueous(Registered TradeMark) kit to remove RNA. In this set of experiments, human mixed Mullerian tumor (LNI) cells grown on the International Space Station during Expedition 3 were examined for antigenic stability after removal of RNA. The cells were stored for three months in RNAlater(TradeMark) and RNA was extracted. The RNA filtrate containing the protein was precipitated, washed, and suspended in buffer containing sodium dodecyl sulfate (SDS). Samples containing equal concentrations of protein were loaded onto SDS-polyacrylamide gels. Proteins were separated by electrophoresis and transferred by Western blot to polyvinylidene fluoride (PVDF) membrane. The Western blots were stained with an enhanced chemiluminescent ECL(Registered Trademark) Plus detection kit (Amersham) and scanned using a Storm 840 gel image analyzer (Amersham, Molecular Dynamics). ImageQuant(Registered TradeMark) software was used to quantify the densities of the protein bands. The ground control and flight LN1 cell samples showed a similar staining pattern over time with antibodies to vimentin, glyceraldehyde-3-phosphate dehydrogenase, and epithelial membrane antigens.
    Keywords: Life Sciences (General)
    Type: 2004 ASGSB Meeting; Nov 09, 2004 - Nov 12, 2004; Brooklyn, NY; United States
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  • 10
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    Antigenic Protein In Microgravity-Grown Human Mixed Mullerian Tumor (LN1) Cells Preserved In RNA Stabilizing Agent (2004)
    In:  CASI
    Details
    Publication Date: 2019-07-18
    Description: Cells treated with RNAlater(TradeMark) have previously been shown to contain antigenic proteins that can be visualized using Western blot analysis. These proteins seem to be stable for several months when stored in RNA stabilizer at 4 C. Antigenic protein can be recovered from cells that have been processed using an Ambion RNAqueous(Registered TradeMark) kit to remove RNA. In this set of experiments, human mixed Mullerian tumor (LN1) cells grown on the International Space Station during Expedition 3 were examined for antigenic stability after removal of RNA. The cells were stored for three months in RNAlater(TradeMark) and RNA was extracted. The RNA filtrate Containing the protein was precipitated, washed, and suspended in buffer containing sodium dodecyl sulfate (SDS). Samples containing equal concentrations of protein were loaded onto SDS-polyacrylamide gels. Proteins were separated by electrophoresis and transferred by Western blot to polyvinylidene fluoride (PVDF) membrane. The Western blots were stained with an enhanced chemiluminescent ECL(Registered TradeMark)Plus detection kit (Amersham) and scanned using a Storm 840 gel image analyzer (Amersham, Molecular Dynamics). ImageQuant(Registered TradeMark)a software was used to quantify the densities of the protein bands. The ground control and flight LN1 cell samples showed a similar staining pattern over time with antibodies to vimentin, glyceraldehyde-3-phosphate dehydrogenase, and epithelial membrane antigens.
    Keywords: Life Sciences (General)
    Type: JSC-CN-8736 , 2004 ASGSB Meeting; Nov 09, 2004 - Nov 12, 2004; Brooklyn, NY; United States
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