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  • 1
    Electronic Resource
    Electronic Resource
    The role of zinc in the activation of the enzyme cellulase in termites (1976)
    Springer
    Cellular and molecular life sciences 32 (1976), S. 19-20 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Chemical analysis had revealed an exceptionally high amout of zinc in the worker bodies of termites. Further investigation of the digestion of cellulose in vitro demonstrated that zinc functions as activator of the enzyme cellulase.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01932601
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    Paper (German National Licenses)
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  • 2
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    Tyrosinemia type 1: a rare and forgotten cause of reversible hypertrophic cardiomyopathy in infancy (2013)
    BioMed Central
    Details
    Publication Date: 2013-09-10
    Description: Background: Tyrosinemia type 1 (TT1) is an autosomal recessive disorder caused by deficiency of the enzyme fumarylacetoacetate hydrolase (FAH). TT1 usually presents in infancy with features suggestive of liver disease or with sepsis-like symptoms.Case presentationWe report two Saudi siblings with TT1. Case 1 was a male infant who presented at 2 months old with fever, vomiting and refusal of feeding. Examination revealed a sick-looking infant with signs of severe dehydration and hypovolemic shock. He was jaundiced, and had hepatomegaly and elevated liver enzymes. Echocardiography was performed in light of a lack of response to inotropes, and revealed biventricular and interventricular septal hypertrophies. The ventricular ejection fraction was 65%. Urine organic acid analysis showed elevated succinylacetone, consistent with a diagnosis of TT1. An FAH gene study identified a c.1 A 〉 G homozygous mutation. This patient responded well to intensive cardiorespiratory therapy, tyrosine-free formula, and oral 2-nitro-4- trifluoromethylbenzyl 1, 3 cyclohexanedione (NTBC). Echocardiographic findings reverted to normal after 4 weeks. Case 2 was the younger brother of Case 1, and was born 6 months after his brother had been confirmed with tyrosinemia. Pregnancy and delivery were uneventful. Serum amino acid and organic acid analyses 4 days after birth confirmed tyrosinemia. DNA analysis identified a c.1 A 〉 G homozygous mutation, as in his brother. Echocardiography was normal. Special formula and NTBC were commenced on day 7 of life. The infant remained asymptomatic after 9 months of follow-up. Conclusions: These cases highlight TT1 as a treatable cause of cardiomyopathy in children. It also supports the idea that early diagnosis and treatment may prevent the development of cardiomyopathy associated with tyrosinemia.
    Electronic ISSN: 1756-0500
    Topics: Biology , Medicine
    Published by BioMed Central
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  • 3
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    Tyrosinemia type 1: a rare and forgotten cause of reversible hypertrophic cardiomyopathy in infancy (2013)
    BioMed Central
    Details
    Publication Date: 2013-09-13
    Description: Background: Tyrosinemia type 1 (TT1) is an autosomal recessive disorder caused by deficiency of the enzyme fumarylacetoacetate hydrolase (FAH). TT1 usually presents in infancy with features suggestive of liver disease or with sepsis-like symptoms.Case presentationWe report two Saudi siblings with TT1. Case 1 was a male infant who presented at 2 months old with fever, vomiting and refusal of feeding. Examination revealed a sick-looking infant with signs of severe dehydration and hypovolemic shock. He was jaundiced, and had hepatomegaly and elevated liver enzymes. Echocardiography was performed in light of a lack of response to inotropes, and revealed biventricular and interventricular septal hypertrophies. The ventricular ejection fraction was 65%. Urine organic acid analysis showed elevated succinylacetone, consistent with a diagnosis of TT1. An FAH gene study identified a c.1 A 〉 G homozygous mutation. This patient responded well to intensive cardiorespiratory therapy, tyrosine-free formula, and oral 2-nitro-4- trifluoromethylbenzyl 1, 3 cyclohexanedione (NTBC). Echocardiographic findings reverted to normal after 4 weeks. Case 2 was the younger brother of Case 1, and was born 6 months after his brother had been confirmed with tyrosinemia. Pregnancy and delivery were uneventful. Serum amino acid and organic acid analyses 4 days after birth confirmed tyrosinemia. DNA analysis identified a c.1 A 〉 G homozygous mutation, as in his brother. Echocardiography was normal. Special formula and NTBC were commenced on day 7 of life. The infant remained asymptomatic after 9 months of follow-up. Conclusions: These cases highlight TT1 as a treatable cause of cardiomyopathy in children. It also supports the idea that early diagnosis and treatment may prevent the development of cardiomyopathy associated with tyrosinemia.
    Electronic ISSN: 1756-0500
    Topics: Biology , Medicine
    Published by BioMed Central
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  • 4
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    The role of zinc in the activation of the enzyme cellulase in termites (1976)
    Springer
    Details
    Publication Date: 1976-01-01
    Print ISSN: 0014-4754
    Topics: Biology , Medicine
    Published by Springer
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  • 5
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    Unique role for ATG5 in neutrophil-mediated immunopathology during M. tuberculosis infection (2015)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2015-12-10
    Description: Mycobacterium tuberculosis, a major global health threat, replicates in macrophages in part by inhibiting phagosome-lysosome fusion, until interferon-gamma (IFNgamma) activates the macrophage to traffic M. tuberculosis to the lysosome. How IFNgamma elicits this effect is unknown, but many studies suggest a role for macroautophagy (herein termed autophagy), a process by which cytoplasmic contents are targeted for lysosomal degradation. The involvement of autophagy has been defined based on studies in cultured cells where M. tuberculosis co-localizes with autophagy factors ATG5, ATG12, ATG16L1, p62, NDP52, BECN1 and LC3 (refs 2-6), stimulation of autophagy increases bacterial killing, and inhibition of autophagy increases bacterial survival. Notably, these studies reveal modest (~1.5-3-fold change) effects on M. tuberculosis replication. By contrast, mice lacking ATG5 in monocyte-derived cells and neutrophils (polymorponuclear cells, PMNs) succumb to M. tuberculosis within 30 days, an extremely severe phenotype similar to mice lacking IFNgamma signalling. Importantly, ATG5 is the only autophagy factor that has been studied during M. tuberculosis infection in vivo and autophagy-independent functions of ATG5 have been described. For this reason, we used a genetic approach to elucidate the role for multiple autophagy-related genes and the requirement for autophagy in resistance to M. tuberculosis infection in vivo. Here we show that, contrary to expectation, autophagic capacity does not correlate with the outcome of M. tuberculosis infection. Instead, ATG5 plays a unique role in protection against M. tuberculosis by preventing PMN-mediated immunopathology. Furthermore, while Atg5 is dispensable in alveolar macrophages during M. tuberculosis infection, loss of Atg5 in PMNs can sensitize mice to M. tuberculosis. These findings shift our understanding of the role of ATG5 during M. tuberculosis infection, reveal new outcomes of ATG5 activity, and shed light on early events in innate immunity that are required to regulate disease pathology and bacterial replication.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kimmey, Jacqueline M -- Huynh, Jeremy P -- Weiss, Leslie A -- Park, Sunmin -- Kambal, Amal -- Debnath, Jayanta -- Virgin, Herbert W -- Stallings, Christina L -- GM007067/GM/NIGMS NIH HHS/ -- U19 AI109725/AI/NIAID NIH HHS/ -- England -- Nature. 2015 Dec 24;528(7583):565-9. doi: 10.1038/nature16451. Epub 2015 Dec 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Microbiology, Washington University School of Medicine, St Louis, Missouri 63110, USA. ; Department of Pathology and Immunology, Washington University School of Medicine, St Louis, Missouri 63110, USA. ; Department of Pathology and Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, California 94143, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26649827" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autophagy/genetics ; Dendritic Cells/immunology/metabolism ; Female ; Immunity, Innate/immunology ; Interferon-gamma/deficiency/immunology ; Macrophages, Alveolar/immunology/metabolism ; Male ; Mice ; Microtubule-Associated Proteins/deficiency/*metabolism ; *Mycobacterium tuberculosis/immunology/physiology ; Neutrophils/*immunology/metabolism ; Tuberculosis/*immunology/microbiology/*pathology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 6
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    Helminth infection reactivates latent gamma-herpesvirus via cytokine competition at a viral promoter (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-06-28
    Description: Mammals are coinfected by multiple pathogens that interact through unknown mechanisms. We found that helminth infection, characterized by the induction of the cytokine interleukin-4 (IL-4) and the activation of the transcription factor Stat6, reactivated murine gamma-herpesvirus infection in vivo. IL-4 promoted viral replication and blocked the antiviral effects of interferon-gamma (IFNgamma) by inducing Stat6 binding to the promoter for an important viral transcriptional transactivator. IL-4 also reactivated human Kaposi's sarcoma-associated herpesvirus from latency in cultured cells. Exogenous IL-4 plus blockade of IFNgamma reactivated latent murine gamma-herpesvirus infection in vivo, suggesting a "two-signal" model for viral reactivation. Thus, chronic herpesvirus infection, a component of the mammalian virome, is regulated by the counterpoised actions of multiple cytokines on viral promoters that have evolved to sense host immune status.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4531374/" 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/PMC4531374/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reese, T A -- Wakeman, B S -- Choi, H S -- Hufford, M M -- Huang, S C -- Zhang, X -- Buck, M D -- Jezewski, A -- Kambal, A -- Liu, C Y -- Goel, G -- Murray, P J -- Xavier, R J -- Kaplan, M H -- Renne, R -- Speck, S H -- Artyomov, M N -- Pearce, E J -- Virgin, H W -- AI032573/AI/NIAID NIH HHS/ -- AI084887/AI/NIAID NIH HHS/ -- CA119917/CA/NCI NIH HHS/ -- CA164062/CA/NCI NIH HHS/ -- CA52004/CA/NCI NIH HHS/ -- P30 CA021765/CA/NCI NIH HHS/ -- R01 AI032573/AI/NIAID NIH HHS/ -- R01 AI084887/AI/NIAID NIH HHS/ -- R01 AI095282/AI/NIAID NIH HHS/ -- R01 CA052004/CA/NCI NIH HHS/ -- R01 CA119917/CA/NCI NIH HHS/ -- R01 CA164062/CA/NCI NIH HHS/ -- U54 AI057160/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2014 Aug 1;345(6196):573-7. doi: 10.1126/science.1254517. Epub 2014 Jun 26.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA. ; Emory University Vaccine Center, Atlanta, GA 30322, USA. ; Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, FL 32610, USA. ; Departments of Pediatrics and Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA. ; Center for Computational and Integrative Biology and Gastrointestinal Unit, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA. ; Departments of Infectious Diseases and Immunology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA. ; Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA. virgin@wustl.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24968940" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Gammaherpesvirinae/genetics/*physiology ; Gene Expression Regulation, Viral ; Herpesvirus 8, Human/genetics/*physiology ; Humans ; Interferon-gamma/*immunology/pharmacology ; Interleukin-4/*metabolism/pharmacology ; Macrophages/immunology ; Mice ; Mice, Inbred C57BL ; Nematospiroides dubius/immunology ; Ovum/immunology ; Promoter Regions, Genetic ; STAT6 Transcription Factor/*metabolism ; Schistosoma mansoni/*immunology ; Schistosomiasis mansoni/*immunology ; Strongylida Infections/immunology ; Virus Activation/drug effects/genetics/*physiology ; Virus Latency/physiology ; Virus Replication/physiology
    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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  • 7
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    Commensal microbes and interferon-lambda determine persistence of enteric murine norovirus infection (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-11-29
    Description: The capacity of human norovirus (NoV), which causes 〉90% of global epidemic nonbacterial gastroenteritis, to infect a subset of people persistently may contribute to its spread. How such enteric viruses establish persistent infections is not well understood. We found that antibiotics prevented persistent murine norovirus (MNoV) infection, an effect that was reversed by replenishment of the bacterial microbiota. Antibiotics did not prevent tissue infection or affect systemic viral replication but acted specifically in the intestine. The receptor for the antiviral cytokine interferon-lambda, Ifnlr1, as well as the transcription factors Stat1 and Irf3, were required for antibiotics to prevent viral persistence. Thus, the bacterial microbiome fosters enteric viral persistence in a manner counteracted by specific components of the innate immune system.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4409937/" 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/PMC4409937/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Baldridge, Megan T -- Nice, Timothy J -- McCune, Broc T -- Yokoyama, Christine C -- Kambal, Amal -- Wheadon, Michael -- Diamond, Michael S -- Ivanova, Yulia -- Artyomov, Maxim -- Virgin, Herbert W -- 1F31CA177194/CA/NCI NIH HHS/ -- 5T32AI007163/AI/NIAID NIH HHS/ -- 5T32CA009547/CA/NCI NIH HHS/ -- F31 CA177194/CA/NCI NIH HHS/ -- R01 AI084887/AI/NIAID NIH HHS/ -- T32 AI007163/AI/NIAID NIH HHS/ -- T32 CA009547/CA/NCI NIH HHS/ -- U19 AI083019/AI/NIAID NIH HHS/ -- U19 AI106772/AI/NIAID NIH HHS/ -- U19 AI109725/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2015 Jan 16;347(6219):266-9. doi: 10.1126/science.1258025. Epub 2014 Nov 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA. ; Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA. Departments of Medicine and Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA. ; Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA. virgin@wustl.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25431490" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anti-Bacterial Agents/pharmacology ; Caliciviridae Infections/drug therapy/immunology/microbiology/*virology ; Cytokines/*physiology ; Female ; Gastroenteritis/drug therapy/immunology/microbiology/*virology ; Intestines/*microbiology/virology ; Male ; Mice, Inbred C57BL ; Mice, Knockout ; *Microbiota/drug effects ; Norovirus/immunology/*physiology ; Receptors, Cytokine/genetics/metabolism ; Signal Transduction ; *Symbiosis ; Viral Load ; Virus Replication ; Virus Shedding
    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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  • 8
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    A genetic and biochemical study on pericarp pigments in a cross between two cultivars of grain sorghum, Sorghum bicolor (1976)
    Springer Nature
    Details
    Publication Date: 1976-12-01
    Print ISSN: 0018-067X
    Electronic ISSN: 1365-2540
    Topics: Biology
    Published by Springer Nature
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  • 9
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    Estimates of General and Specific Combining Ability in Grain Sorghum Sorghum vulgare Pers. 1 (1965)
    Wiley
    Details
    Publication Date: 1965-11-01
    Print ISSN: 0011-183X
    Electronic ISSN: 1435-0653
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Wiley
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  • 10
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    Manifestations of Hybrid Vigor in Grain Sorghum and the Relations Among the Components of Yield, Weight per Bushel, and Height 1 (1966)
    Wiley
    Details
    Publication Date: 1966-11-01
    Print ISSN: 0011-183X
    Electronic ISSN: 1435-0653
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Wiley
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