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AVI BioPharma Announces Publication of Positive Results from New Class of Antibiotics Using NEUGENE Antisense Technology.


PORTLAND, Ore. -- AVI BioPharma, Inc. (Nasdaq:AVII) today announced the publication of positive preclinical results from a new class of antisense-based antibiotics, called NeuBiotics. The article, titled "Gene-Specific Effects of Antisense antisense, DNA or RNA manipulated in a laboratory so that its components (nucleotides) form a complementary copy of normal, or "sense," messenger RNA (mRNA; see nucleic acid).  Phosphorodiamidate Morpholino Oligomer-Peptide Conjugates on Escherichia coli and Salmonella enterica Serovar Typhimurium in Pure Culture and in Tissue Culture," appears in the August issue of the journal Antimicrobial Agents and Chemotherapy Antimicrobial Agents and Chemotherapy (print-ISSN 0066-4804, CODEN AMACCQ; canceled ISSN 0074-9923, canceled CODEN AACHAX) is an academic journal published by the American Society for Microbiology. , Vol. 50, No. 8, p. 2789-2796. AVI (Audio Video Interleaved) A Windows multimedia video format from Microsoft. It interleaves standard waveform audio and digital video frames (bitmaps) to provide reduced animation at 15 fps at 160x120x8 resolution. Audio is 11,025Hz, 8-bit samples.  research scientists Bruce Geller, Ph.D., and Lucas Tilley authored the paper.

Highlights from the NeuBiotic study include the following:

--AVI has developed peptide conjugates that are effective in delivering NeuBiotic compounds directly into bacteria.

--NeuBiotics are both specific and effective in blocking the bacterial genetic target.

--Targeted bacteria can be eliminated without causing toxicity to human cells.

--NeuBiotics eliminated both E. coli and S. typhimurium infection in cell culture, which demonstrates the broad applicability of the NeuBiotic approach.

"Our antisense approach to developing a new class of antibiotics has enormous potential to treat infections caused by emerging strains of antibiotic-resistant, gram-positive bacteria," said Patrick L. Iversen, Ph.D., senior vice president of research and development at AVI. "Based on these results, we are now in a strong position to develop NeuBiotics for a variety of microbial microbial

pertaining to or emanating from a microbe.


microbial digestion
the breakdown of organic material, especially feedstuffs, by microbial organisms.
 infections."

AVI recently announced that it was issued U.S. Patent No. 7,049,431, titled "Antisense Antibacterial Cell Division Composition and Method," providing broad protection for NEUGENE(R) antisense compounds targeting bacterial cell division and cell cycle genes for the development of this new class of antibiotics.

NeuBiotics are antisense antibiotics composed of relatively short (10-13 subunits) NEUGENE antisense polymers covalently linked to bacteria-permeating peptides. The antisense oligomers target and disable essential bacterial gene function, and the delivery peptides improve the antisense uptake into bacterial cells.

The Growing Problem of Antibiotic Resistance

Antibiotic resistance is an increasing threat around the globe. According to the Centers for Disease Control and Prevention Centers for Disease Control and Prevention (CDC), agency of the U.S. Public Health Service since 1973, with headquarters in Atlanta; it was established in 1946 as the Communicable Disease Center.  (CDC See Control Data, century date change and Back Orifice.

CDC - Control Data Corporation
) and the World Health Organization (WHO), nearly all significant bacterial infections in the world are becoming resistant to the most commonly prescribed antibiotic treatments. Consequences of resistance include longer-lasting illness and an increased risk of death, more-frequent doctor visits or extended hospital stays, and the need for more expensive and toxic medications. In addition, according to the WHO, treatment failures increase the numbers of infected people moving through a community. This in turn exposes the general population to prolonged risk of contracting a resistant strain of infection.

About AVI BioPharma

AVI BioPharma develops therapeutic products for the treatment of life-threatening diseases using third-generation NEUGENE antisense drugs. AVI's lead NEUGENE antisense compound is designed to target cell proliferation disorders, including cardiovascular restenosis, cancer and polycystic kidney disease Polycystic Kidney Disease Definition

Polycystic kidney disease (PKD) is one of the most common of all life-threatening human genetic disorders.
. In addition to targeting specific genes in the body, AVI's antiviral program uses NEUGENE antisense compounds to combat disease by targeting single-stranded RNA viruses, including West Nile virus West Nile virus, microorganism and the infection resulting from it, which typically produces no symptoms or a flulike condition. The virus is a flavivirus and is related to a number of viruses that cause encephalitis. , hepatitis C virus
This page is for the virus. For the disease, see Hepatitis C.
The Hepatitis C virus (HCV) is a small (50 nm in size), enveloped, single-stranded, positive sense RNA virus in the family Flaviviridae.
, dengue virus, Ebola virus and influenza A virus. AVI has introduced a NEUGENE-based exon-skipping technology called ESPRIT therapy. More information about AVI is available on the company's Web site at http://www.avibio.com.

"Safe Harbor" Statement under the Private Securities Litigation Reform Act The Private Securities Litigation Reform Act of 1995 (PSLRA) implemented several significant substantive changes affecting certain cases brought under the federal securities laws, including changes related to pleading, discovery, liability, class representation and awards fees and  of 1995: The statements that are not historical facts contained in this release are forward-looking statements that involve risks and uncertainties, including, but not limited to, the results of research and development efforts, the results of preclinical and clinical testing, the effect of regulation by the FDA FDA
abbr.
Food and Drug Administration


FDA,
n.pr See Food and Drug Administration.

FDA,
n.pr the abbreviation for the Food and Drug Administration.
 and other agencies, the impact of competitive products, product development, commercialization and technological difficulties, and other risks detailed in the company's Securities and Exchange Commission filings.
COPYRIGHT 2006 Business Wire
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2006, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Publication:Business Wire
Geographic Code:1USA
Date:Aug 9, 2006
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