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Topic: Neuraminidase



  
 Hospital Practice: Updating the Approach to Influenza
Since resistance appears not to be a clinical issue, neuraminidase inhibitors should be effective as therapy or prophylaxis--including outbreak control in nursing homes (although the drugs are only now being studied in that setting).
Some viewers were soon visiting their physicians with a sometimes vague idea that a novel flu therapy could be prescribed.
Antiviral drugs also have value as prophylaxis in unanticipated circumstances, such as surprise changes in the circulating virus or this year's problem, a delay in vaccine manufacture.
http://www.hosppract.com/issues/2000/12/monto.htm   (3839 words)

  
 Immunization with Native or Recombinant Streptococcus pneumoniae Neuraminidase Affords Protection in the Chinchilla ...
The neuraminidase was visualized by use of UV light (Multi Image
neuraminidase or other pneumococcal antigens that were responsible
Western blot analysis to determine serum antibody response.
http://iai.asm.org/cgi/content/full/72/7/4309   (2569 words)

  
 Metabolism of the Influenza Neuraminidase Inhibitor Prodrug Oseltamivir in the Rat -- Sweeny et al. 28 (7): 737 -- Drug ...
Metabolism of the Influenza Neuraminidase Inhibitor Prodrug Oseltamivir in the Rat
Metabolism of the Influenza Neuraminidase Inhibitor Prodrug Oseltamivir in the Rat -- Sweeny et al.
These data indicated that in the rat, oseltamivir was primarily
http://dmd.aspetjournals.org/cgi/content/full/28/7/737   (2997 words)

  
 Complementation, cross correction, and drug correction studies of combined beta-galactosidase neuraminidase deficiency ...
Complementation, cross correction, and drug correction studies of combined beta-galactosidase neuraminidase deficiency in human fibroblasts -- Strisciuglio et al.
Complementation, cross correction, and drug correction studies of combined beta-galactosidase neuraminidase deficiency in human fibroblasts
Neuraminidase activity in fibroblasts obtained from a patient with combined
http://www.pedresearch.org/cgi/content/abstract/18/2/167   (229 words)

  
 Flu Drugs, NIAID Fact Sheet
In laboratory and in limited clinical studies, there have been no reported interactions of the neuraminidase inhibitors with other drugs.
For complete safety information about these drugs, talk with your pharmacist or health care provider.
These drugs have not been evaluated in pregnant women, and researchers do not know the effects these drugs could have on the unborn child.
http://www.niaid.nih.gov/factsheets/fludrugs.htm   (1162 words)

  
 Logistic issues and potential prescribing costs associated with use of neuraminidase inhibitors for the treatment of ...
with a neuraminidase inhibitor emphasizes the overriding importance
In the UK, the National Institute for Clinical Excellence has
time to benefit from treatment with a neuraminidase inhibitor,
http://www.jrsm.org/cgi/content/abstract/96/2/66   (379 words)

  
 Worthington Neuraminidase
Leach, S.: Release and Breakdown of Sialic Acid from Human Salivary Mucin and Its Role in the Formation of Dental Plaque, Nature 199, 486, 1963
Chromatographic purification has been developed in this laboratory based on work of Cassidy et al.
Rosenberg, S., Plocinik, B., and Rogentine, G.: "Unmasking" of Human Lymphoid Cell Heteroantigens by Neuraminidase Treatment, J Natl Cancer Inst 48, 1271, 1972
http://www.worthington-biochem.com/NEUP   (1500 words)

  
 [No title]
It will be appreciated by those skilled in the art that the neuraminidase inhibitors herein described may be derivatised at more than one position.
Surprisingly, we have found that neuraminidase inhibitors which are effective in the treatment of human influenza virus infections are also effective in the treatment of equine influenza virus infections.
Therefore, it is surprising and unexpected that neuraminidase inhibitors which are effective in the treatment of human influenza virus infections have now been found to be effective in the treatment of equine influenza virus infections.
http://www.wipo.int/cgi-pct/guest/getbykey5?KEY=01/97792.011227&ELEMENT_SET=DECL   (2645 words)

  
 Pereira Research
However, the neuraminidase can potently promote survival of neuroglia and neurons subjected not only to T.
What's more, the neuraminidase and other parasitokines have the potential to become therapeutic agents to treat not only infectious diseases but also unrelated disorders.
In the case of the neuraminidase, we are testing its utility as a therapeutic gent for Parkinson's disease.
http://www.tufts.edu/sackler/immunology/miercio/research.html   (256 words)

  
 [No title]
rat cytosolic neuraminidase (42); influenza A neuraminidase, strain A/NT/60/68, (A00885) influenza B neuraminidase, strain
A model of the tetramer was generated by superimposing the monomer models on the backbone of the influenza neuraminidase tetramer.
RPV has been suggested to be the archetype morbillivirus (46).
http://www.wipo.int/cgi-pct/guest/getbykey5?KEY=99/02695.990121&ELEMENT_SET=DECL   (9328 words)

  
 ARS Publication request: Manganese Activates Pasteurella Haemolytica Neuraminidase
Activation by manganese was expressed as increased Vmax.
This study examined the effect of metal ions on the activity of the enzyme.
Technical Abstract: Neuraminidase is one of the secreted hydrolytic enzymes present in a 24-hour culture supernatant of Pasteurella hemolytica, the causative agent of acute bovine pneumonic pasteurellosis.
http://www.ars.usda.gov/research/publications/publications.htm?SEQ_NO_115=101782&pf=1   (267 words)

  
 Transport of human lysosomal neuraminidase to mature lysosomes requires protective protein/cathepsin A -- van der Spoel ...
with neuraminidase when treated with anti-Neur antiserum, demonstrating
of the neuraminidase cDNA from different sialidosis patients has
The molecular nature of the catalytic activation of neuraminidase is not clear.
http://embojournal.npgjournals.com/cgi/content/full/17/6/1588   (5445 words)

  
 eMedicine - Mucolipidosis Type I (Alpha-Neuraminidase Deficiency-Sialidosis) : Article by Grace Y Lee, MD
Medicine is a constantly changing science and not all therapies are clearly established.
Preliminary studies indicate that both of these properties have positively correlated with the clinical subtype of ML I. However, the wide variability of clinical presentation in these patients cannot be fully explained by alpha-N-acetyl neuraminidase mutations.
Because of the neuraminidase deficiency, ML I is now categorized with the sialidoses, a group of clinically distinct disease entities due to either an isolated neuramidase deficiency or a combined deficiency of neuraminidase and beta-galactosidase.
http://www.emedicine.com/ped/topic2093.htm   (1731 words)

  
 An analysis of the role of neuraminidase in the receptor-binding activity of influenza B virus: the inhibitory effect ...
We analysed the role of neuraminidase (NA) on haemadsorption
An analysis of the role of neuraminidase in the receptor-binding activity of influenza B virus: the inhibitory effect of Zanamivir on haemadsorption
An analysis of the role of neuraminidase in the receptor-binding activity of influenza B virus: the inhibitory effect of Zanamivir on haemadsorption -- Luo et al.
http://vir.sgmjournals.org/cgi/content/full/80/11/2969   (3700 words)

  
 Human Parainfluenza Virus Type 3 HN-Receptor Interaction: Effect of 4-Guanidino-Neu5Ac2en on a Neuraminidase-Deficient ...
of exogenous neuraminidase allows C28a to fuse large areas of
neuraminidase, but no such pretreatment was required for hemadsorption
(by inhibiting neuraminidase activity) has no practical consequence.
http://jvi.asm.org/cgi/content/full/75/16/7481   (5349 words)

  
 ☞ Bird - Bird Picture
Avian Influenza (" Bird Flu "): Study of Combination Therapy Utilizing Biologic TNF Inhibitors and Neuraminidase Inhibitors May be Warranted
The award winning short story and short screenplay is put in motion.
http://www.allbirdinfo.com/birdpicture   (961 words)

  
 ISMRD - Sialidosis
It is the lysosomal neuraminidase (N-acetyl-a-neuraminidase) that is lacking in sialidosis patients.
However, sialidosis patients and individuals with combined deficiencies of neuraminidase and b-galactosidase suffer from two distinct and separate genetic disorders.
About 25 mutations have been identified in the neuraminidase gene of unrelated patients with sialidosis.
http://www.mannosidosis.org/sialidosisOverview.htm   (962 words)

  
 American Family Physician: Neuraminidase Inhibitors in the Treatment of Influenza
American Family Physician: Neuraminidase Inhibitors in the Treatment of Influenza
As with zanamivir, oseltamivir also was associated with a decrease in the rate of respiratory complications that required antibiotic therapy.
Neither drug interferes with the antibody response to influenza vaccine.
http://www.findarticles.com/p/articles/mi_m3225/is_4_61/ai_59481018   (734 words)

  
 Illini PorkNet: Paper Display: Purification of Haemophilus...
Immunologic and genetic analysis of the neuraminidase of Pasteurella multocida.
Neuraminidase was not expressed in a functional form in screened plaques.
To do so, we devised a method to renature the activity of the neuraminidase.
http://www.traill.uiuc.edu/porknet/paperDisplay.cfm?ContentID=127   (2851 words)

  
 Role of neuraminidase in influenza virus-induced apoptosis -- Morris et al. 80 (1): 137 -- Journal of General Virology
neuraminidase when fetuin was used as the substrate.
neuraminidase plays some role in the induction of apoptosis and that it
An analysis of the role of neuraminidase in the receptor-binding activity of influenza B virus: the inhibitory effect of Zanamivir on haemadsorption
http://vir.sgmjournals.org/cgi/content/abstract/80/1/137   (789 words)

  
 Neuraminidase - Wikipedia, the free encyclopedia
Administration of chemical inhibitors of neuraminidase is a treatment that limits the severity and spread of viral infections.
Neuraminidase is also a virulence factor for the bacteria Bacteroides fragilis.
Nine neuraminidase subtypes are known, many occur only in various species of duck and chicken.
http://en.wikipedia.org/wiki/Neuraminidase   (242 words)

  
 Neuraminidase, Exoglycosidases, New England Biolabs
Q6: What is a good positive control for neuraminidase?
Q3: What is the difference between Neuraminidase and α2-3 Neuraminidase?
As with the above question we've observed excellent Neuraminidase activity at higher and lower pH's, and we've also found it to work very well on a protein that has been denatured.
http://www.neb.com/nebecomm/products/faqproductP0720.asp   (395 words)

  
 A Novel CD8 T Cell-Restricted CD45RB Epitope Shared by CD43 Is Differentially Affected by Glycosylation -- Carlow et ...
LNC were treated with or without neuraminidase as indicated.
D26 and LNC, neuraminidase had no effect on the expression of 1B11-CD43
neuraminidase effect was not observed on myeloid cells from
http://www.jimmunol.org/cgi/content/full/163/3/1441   (5450 words)

  
 [No title]
  What I would like to mention is that the viruses that we are seeing with the 155/156 change are also clustering in terms of their neuraminidase.
  We had been sequencing neuraminidase for a number of years, but we've also been looking at the antigenic properties of neuraminidase.
  There hasn't been very much variation in the N1 neuraminidase genes since 1999, when the vaccine strain was chosen.
http://www.fda.gov/ohrms/dockets/ac/03/transcripts/3922t1.htm   (6887 words)

  
 Neuraminidase inhibitor definition - Medical Dictionary definitions of popular medical terms
Neuraminidase inhibitor definition - Medical Dictionary definitions of popular medical terms
Neuraminidase inhibitor: A drug that inhibits the enzyme called neuraminidase.
MedicineNet Home > MedTerms medical dictionary A-Z List > Neuraminidase inhibitor
http://www.medterms.com/script/main/art.asp?articlekey=10987   (217 words)

  
 Neuraminidase Inhibitors
Clinical trials have shown that both these drugs are effective when taken within 48 hours of the onset of the symptoms of influenza, shaving off up to two days off flu's typical run of six days or more.
Tamiflu, a neuraminidase inhibitor in pill form, is effective against the A strain, but has minimal activity against the B strain (US approval covered both A and B strains).
During an interview with IMS HEALTH in September 1999, Dr James Niedel, executive director science and technology Glaxo Wellcome said, "If Tamiflu is equally effective to Relenza, the battle will be on side effects — Relenza is 100% free of side effects, but we know that Tamiflu is associated with some nausea and vomiting."
http://www.ims-global.com/insight/news_story/news_story_991103c.htm   (181 words)

  
 [No title]
The RNA genome has enormous capacity to change and thus influenza escapes from vaccines or antiviral drugs.
Air, G.M., Laver, W.G. and Webster, R.G. 1990: Mechanism of antigenic variation in an individual epitope on influenza virus N9 neuraminidase.
Laver, W.G., Colman, P.N., Webster, R.G., Hinshaw, V.S. and Air, G.M. 1984: Influenza virus neuraminidase with hemagglutinin activity.
http://w3.ouhsc.edu/biochem/ocmg/Air.htm   (2813 words)

  
 Modeling of Protein- Neuraminidase Complexed with Zanamivir
As with the NDV HN, the active site of the HN of parainfluenza viruses is structurally flexible, suggesting that it may be able to switch between a receptor-binding state and a catalytic state.
Furthermore, as demonstrated by the diagram, the neuraminidase structure is mostly made up of beta pleated sheets and one alpha helix, an observation which is supported by looking back at the initial image of neuraminidase (Figure 1).
Figure 10 shows the ligand interactions with respect to the entire A protein chain of neuraminidase (indicated by a grey line ribbon), while still focusing in on the specific ligand interactions indicated by the LIGPLOT.
http://mason.gmu.edu/~dniessen/chem350/project/protein/final.htm   (2023 words)

  
 TAMIFLU How TAMIFLU Works
These inhibitors treat the cause of influenza infection by inhibiting the critical neuraminidase protein on the surface of the virus.
The relationship between the invitro anti-viral activity in cell culture and the inhibition of influenza virus replication in humans has not been established.
TAMIFLU works to stop the spread of flu virus in the body.
http://www.tamiflu.com/consumer_howitworks.asp   (178 words)

  
 Hemagglutinin-Neuraminidase
In almost all mutants there is a decreased level of both HA and NA activities (8).
Having a structure similar to the influenza neuraminidase, it contains a barrel motif composed of b-propellers.
The structure of the globular head of HN in Newcastle virus has been determined using hexagonal crystal and orthorhombic crystal forms (4).
http://www.arches.uga.edu/~tye/bcmb8010   (628 words)

  
 TAMIFLU Neuraminidase Information
Use and access of this site is subject to the terms and conditions as set out in our Legal Statement and PRIVACY Statement.
Inhibition of viral neuraminidase prevents newly formed influenza virus from escaping infected cells, therefore interrupting the spread of infection between cells
Neuraminidase is a critical protein on the surface membrane of the influenza virus
http://www.tamiflu.com/hcp/neuramin/neura_index.asp   (128 words)

  
 NYSL: Reference: Databases (Arranged Alphabetically)
Gale Encyclopedia of Medicine Articles on diseases or disorders typically cover definition; description; causes and symptoms; diagnosis; treatments; prevention; and more.
Disorders covered include Down Syndrome, trisomy, hemophilia and Tourette Syndrome, and rarely seen diseases such as Meckel Syndrome, neuraminidase deficiency and phenylketonuria.
http://www.nysl.nysed.gov/reference/dbers.htm   (5719 words)

  
 ISD: PDB information page
The Protein Data Bank (PDB) includes structural information about the hemagglutinin, neuraminidase and matrix proteins of influenza.
NEURAMINIDASE N9 (E.C.3.2.1.18) (SIALIDASE) (MUTANT WITH LYS 432 REPLACED
For convenience, we provide a list of these proteins.
http://www.flu.lanl.gov/tools/pdb_info.html   (303 words)

  
 Role of the Hemagglutinin-Neuraminidase Protein in the Mechanism of Paramyxovirus-Cell Membrane Fusion -- Takimoto et ...
HeLa T4 cells, and their biological activities (neuraminidase
http://jvi.asm.org/cgi/content/full/76/24/13028   (4237 words)

  
 Neuraminidase - definition of Neuraminidase in Encyclopedia
Embed a dictionary search in your own web page
http://encyclopedia.laborlawtalk.com/Neuraminidase   (41 words)

  
 Martindale's Bioscience & Biotechnology Center: Section IV: Pathways, Microorganisms, Pheromones, Genetics
It is intended to provide the research community with easy sequence deposit and retrieval capabilities, together with tools tailored, in particular, to the analysis of hemagglutinin and neuraminidase sequences..."
http://www.martindalecenter.com/GradBioscience_3_MP.html   (1925 words)

  
 Publications
Shibazaki, M., Tanaka, K., Nagai, K., Watanabe, M., Fujita, S., Suzuki, K., Okada, G., and Yamamoto, T. YM-92447 (spinosulfate A), a neuraminidase inhibitor produced by an unidentified pycnidial fungus.
http://www.jcm.riken.jp/JCM/publish.html   (9146 words)

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