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  • Articles  (16)
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  • Life and Medical Sciences  (7)
  • Humans  (5)
  • Male  (5)
  • 2015-2019  (6)
  • 1985-1989  (9)
  • 1940-1944  (1)
  • Biology  (16)
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  • Articles  (16)
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  • 1
    Electronic Resource
    Electronic Resource
    Study of a nuclear and cytoplasmic relation in scyllina cyanipes (orthoptera) (1940)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 67 (1940), S. 567-607 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1050670310
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  • 2
    Electronic Resource
    Electronic Resource
    Intricate sutures as fractal curves (1985)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 185 (1985), S. 285-295 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The study of fractal dimensionality for complex sutures in deer skulls and ammonites reveals their extremely long and elaborate lengths in relation to the defined areas they bound. These sutures often show various scales of self-similarity (where the parent pattern is elaborated in miniature, again and again), and empirical fractal dimensions calculated lie between one and two. In the scaling elaborations of Cervid sutures, some elaborations seem isolated from the continuous suture. Small “islands” are seen in similar theoretical fractal curves as well. The evolutionary and developmental specialization of intricate sutures improves the bonds; such fitness is essential owing to extraordinary stresses. Autocorrelation (where nearby sides or elaborations tend to resemble a basic pattern and, therefore, resemble one another) of the elaborations of the sutures serves to lengthen the boundaries and theoretically enhances the development of self-similar patterns. When autocorrelation and self-similarity in the sutures are favored by an evolutionary process plastic enough to elaborate intricate form, ensuring fitness, and natural selection does not directly limit the lengths while concomitantly defining the bounded areas, then the intricacy is manifest as fractal phenomena, and practically described as such.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1051850303
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  • 3
    Electronic Resource
    Electronic Resource
    Structure and evolution of the human genes encoding protein C and coagulation factor IX (1987)
    New York, N.Y. : Wiley-Blackwell
    Journal of Cellular Biochemistry 33 (1987), S. 185-190 
    Details
    ISSN: 0730-2312
    Keywords: protein C ; factor IX ; coagulation ; methylation ; methyl cytosine ; intron ; serine protease ; evolution ; mutation ; gene structure ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Human protein C is a vitamin K-dependent plasma protein that serves as a feedback down-regulator of the coagulation cascade by specifically degrading the protein cofactors VIIIa and Va. The protein C precursor consists of the following domains: leader peptide, “gla” region, two epidermal growth factor segments, and the activation peptide/serine protease. Comparison of amino acid sequences reveals that protein C and factor IX are homologous. A comparison of the genes for protein C and factor IX shows that all seven of the introns within the protein coding regions are in identical positions and correspond to protein structure-function domain boundries. However, the base compositions of the two genes (coding and noncoding regions) are remarkably different: ∼60% guanine + cytosine (G + C) for protein C versus ∼40% G + C for factor IX. One possible explanation for this phenomenon is that the factor IX gene (located on the X chromosome) has undergone extensive deoxycytosine methylation and subsequent spontaneous deamination mutagenesis, resulting in a net C to thymine (and G to adenine) transition. This would suggest that the protein C gene may represent a more primitive form of the gene duplication precursor.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcb.240330305
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  • 4
    Electronic Resource
    Electronic Resource
    Verapamil inhibits serotonin uptake of endothelial cells in culture by a mechanism unrelated to Ca2+ channel blockade (1987)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 132 (1987), S. 178-182 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Verapamil inhibited Na+-dependent uptake of serotonin (5-HT) by bovine pulmonary artery endothelial cells in culture both exposed to room air and stimulated by prior exposure to anoxia. The effect of verapamil occurred even in the absence of Ca2+ from the assay medium. Although absence of Ca2+ from the medium moderately reduced 5-HT uptake, stimulation of uptake was nevertheless observed for cells previously exposed to anoxia. Verapamil altered the Km, but not the Vmax, of 5-HT uptake. There was no change in 45Ca2+ uptake or release by cells previously exposed to anoxia as compared to those exposed to room air and verapamil did not influence 45Ca2+ fluxes by either set of cells. It is concluded that verapamil inhibits 5-HT uptake by endothelial cells through a mechanism other than Ca2+ channel blockade; the results are consistent with competitive inhibition of a 5-HT carrier. The stimulatory effect of anoxia on 5-HT uptake does not occur through a change in Ca2+ fluxes.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1041320126
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  • 5
    Electronic Resource
    Electronic Resource
    Transforming activity of human nasopharyngeal carcinoma DNA (1986)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 129 (1986), S. 21-26 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: NIH 3T3 cells were transfected with the DNAs from biopsy specimens of human nasopharyngeal carcinoma (NPC, EBV DNA positive) using calcium phosphate precipitation method. The malignant, transformed foci of NIH 3T3 cells have been observed and cloned. The hybridization of transfectant DNA digested by EcoRI with total human leukocyte DNA as probe was performed. The strong signal of smear comparing with NIH 3T3 DNA as control was observed. It was implied that the putative human transforming sequences had been integrated into transformed cells. Employing soft agar culture, the transformed cells can grow and form cell colonies. Following transfer, the foci were able to grow and adhere to a glass wall. These cells were easily agglutinated by con A. The cloned foci have been inoculated into nude mice with the formation of highly malignant sarcomas. In preliminary experiments for characterizing the transforming sequences, Ha-ras and Blym 1 were found in transfectants derived from one of the NPC DNA samples. It is implicated that these two oncogenes might be responsible for the acquisition of malignant phenotypic character of some human NPC. The further identification of oncogenes in NPC is currently in progress.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1041290406
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  • 6
    Electronic Resource
    Electronic Resource
    Elastin repeat peptides as chemoattractants for bovine aortic endothelial cells (1989)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 140 (1989), S. 512-518 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Cultured bovine aortic endothelial cells migrate toward a concentration gradient of repeating elastin peptides, specifically the repeating nonamers Gly-Phe-Gly-Val-Gly-Ala-Gly-Val-Pro and Gly-Leu-Gly-Val-Gly-Ala-Gly-Val-Pro and the repeating hexamer Val-Gly-Val-Ala-Pro-Gly. Dose-response experiments demonstrate that the peak of activity occurs at 8 × 10-8 M for the nonapeptides and 1 × 10-8 M for the hexapeptide. Checkerboard assays establish that the movement is chemotaxis and not chemokinesis. Because of the concentration difference in the responsiveness between the nonapeptide and the hexapeptide, the cells can differentiate between the two types of repeats. The positive control for the chemo-taxis studies was fibronectin.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1041400316
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  • 7
    Electronic Resource
    Electronic Resource
    Brain temperature measurements in rats: A comparison of microwave and ambient temperature exposures (1986)
    New York, NY [u.a.] : Wiley-Blackwell
    Bioelectromagnetics 7 (1986), S. 243-258 
    Details
    ISSN: 0197-8462
    Keywords: microwave ; 2450 MHz ; brain temperature ; rat ; Life and Medical Sciences ; Occupational Health and Environmental Toxicology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Physics
    Notes: In an effort to understand microwave heating better, regional brain and core temperatures of rats exposed to microwave radiation (2450 MHz) or elevated air temperatures were measured in two studies. In general, we have found no substantial evidence for temperature differentials, or “hot spots,” in the brain of these animals. In the first study, after a 30-min exposure, no temperature differences between brain regions either after microwave or ambient air exposure were found. However, a highly significant correlation between brain and core temperatures was found and this correlation was the same for both microwave and ambient air heating. In the second study, time-temperature profiles were measured in rats exposed to either 30 mW/cm2 or 36.2°C. In this study, the 30-min exposure period was divided into seven intervals and the change in temperature during each period was analyzed. Only the cortex showed significantly different heating rates between the air heating and microwave heating; however, this difference disappeared after the initial 5 min of exposure.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bem.2250070302
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  • 8
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    Molecular cloning of two types of GAP complementary DNA from human placenta (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-12-23
    Description: The ras p21 GTPase-activating protein (GAP) was purified from human placental tissue. Internal amino acid sequence was obtained from this 120,000-dalton protein and, by means of this sequence, two types of complementary DNA clones were isolated and characterized. One type encoded GAP with a predicted molecular mass of 116,000 daltons and 96% identity with bovine GAP. The messenger RNA of this GAP was detected in human lung, brain, liver, leukocytes, and placenta. The second type appeared to be generated by a differential splicing mechanism and encoded a novel form of GAP with a predicted molecular mass of 100,400 daltons. This protein lacks the hydrophobic amino terminus characteristic of the larger species, but retains GAP activity. The messenger RNA of this type was abundantly expressed in placenta and in several human cell lines, but not in adult tissues.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Trahey, M -- Wong, G -- Halenbeck, R -- Rubinfeld, B -- Martin, G A -- Ladner, M -- Long, C M -- Crosier, W J -- Watt, K -- Koths, K -- New York, N.Y. -- Science. 1988 Dec 23;242(4886):1697-700.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, Cetus Corp., Emeryville, CA 94608.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3201259" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Brain Chemistry ; *Cloning, Molecular ; DNA/*genetics/isolation & purification ; Female ; GTPase-Activating Proteins ; Gene Expression Regulation ; Humans ; Leukocytes/analysis ; Liver/analysis ; Lung/analysis ; Molecular Sequence Data ; Molecular Weight ; Nucleic Acid Hybridization ; Oligonucleotide Probes ; Placenta/*analysis ; Pregnancy ; Proteins/*genetics/isolation & purification ; RNA, Messenger/analysis/genetics ; Sequence Homology, Nucleic Acid ; ras GTPase-Activating Proteins
    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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  • 9
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    Documenting rare disease data in China (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-09-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lin, Haotian -- Long, Erping -- Chen, Weirong -- Liu, Yizhi -- New York, N.Y. -- Science. 2015 Sep 4;349(6252):1064. doi: 10.1126/science.349.6252.1064-b.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, 510060, China. ; The State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, 510060, China. yizhi_liu@aliyun.com.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26339020" target="_blank"〉PubMed〈/a〉
    Keywords: Cataract/*congenital/*therapy ; Child, Preschool ; China ; Clinical Trials as Topic ; Humans ; Pilot Projects ; Rare Diseases/*congenital/*therapy ; Translational Medical Research/economics
    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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  • 10
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    Structure and inhibition of EV-D68, a virus that causes respiratory illness in children (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-01-03
    Description: Enterovirus D68 (EV-D68) is a member of Picornaviridae and is a causative agent of recent outbreaks of respiratory illness in children in the United States. We report here the crystal structures of EV-D68 and its complex with pleconaril, a capsid-binding compound that had been developed as an anti-rhinovirus drug. The hydrophobic drug-binding pocket in viral protein 1 contained density that is consistent with a fatty acid of about 10 carbon atoms. This density could be displaced by pleconaril. We also showed that pleconaril inhibits EV-D68 at a half-maximal effective concentration of 430 nanomolar and might, therefore, be a possible drug candidate to alleviate EV-D68 outbreaks.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4307789/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4307789/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Yue -- Sheng, Ju -- Fokine, Andrei -- Meng, Geng -- Shin, Woong-Hee -- Long, Feng -- Kuhn, Richard J -- Kihara, Daisuke -- Rossmann, Michael G -- AI11219/AI/NIAID NIH HHS/ -- R24 GM111072/GM/NIGMS NIH HHS/ -- R37 AI011219/AI/NIAID NIH HHS/ -- RR007707/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2015 Jan 2;347(6217):71-4. doi: 10.1126/science.1261962.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, Hockmeyer Hall of Structural Biology, 240 South Martin Jischke Drive, Purdue University, West Lafayette, IN 47907, USA. ; Department of Biological Sciences, Hockmeyer Hall of Structural Biology, 240 South Martin Jischke Drive, Purdue University, West Lafayette, IN 47907, USA. Department of Computer Science, 305 North University Street, Purdue University, West Lafayette, IN 47907, USA. ; Department of Biological Sciences, Hockmeyer Hall of Structural Biology, 240 South Martin Jischke Drive, Purdue University, West Lafayette, IN 47907, USA. mr@purdue.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25554786" target="_blank"〉PubMed〈/a〉
    Keywords: Antiviral Agents/*chemistry/pharmacology/therapeutic use ; Capsid/*chemistry/drug effects/ultrastructure ; Child ; Crystallography, X-Ray ; Enterovirus D, Human/*chemistry/drug effects/ultrastructure ; Enterovirus Infections/drug therapy/epidemiology/*virology ; Humans ; Hydrophobic and Hydrophilic Interactions ; Oxadiazoles/*chemistry/pharmacology/therapeutic use ; Respiratory Tract Diseases/drug therapy/epidemiology/*virology ; United States/epidemiology ; Viral Proteins/chemistry/ultrastructure
    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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