Northern Antibiotics Presents New Data on Novel Polymyxin Compounds at the Joint ICAAC... (us in vitrofindings. The pharmacokine...)

Northern Antibiotics Presents New Data on Novel Polymyxin Compounds at the Joint ICAAC/IDSA 2008

Date:10/28/2008

us in vitro findings.

The pharmacokinetic studies, performed in Sprague-Dawley rats, showed that the serum half-lives of NAB739 and NAB7061 were close to that of colistin. However, both NAB compounds had much greater renal clearance and much higher urinary recovery than observed for colistin. Accordingly, and in contrast to colistin and polymyxin B, the NAB compounds are excreted into urine to a significant extent. This indicates that the reuptake of the NAB compounds in the proximal tubuli of the kidneys is less intense than that of colistin and polymyxin B.

The extensive reuptake is regarded to be the mechanism of the nephrotoxicity of polymyxins. Thus the reported findings suggest that NAB739 and NAB7061 are less nephrotoxic than colistin and polymyxin B. They are also in line with the previous finding (Vaara M. et al., 2008) that the affinities of NAB739 and NAB7061 for isolated rat kidney brush border membrane are significantly lower than that of polymyxin B.

These two studies were presented in the Poster Session #290 on Tuesday, October 28, 2008, 11:15 AM -12:15 PM.

Poster F1-3966: "Novel Polymyxin Derivatives are Effective in Treating Peritoneal E.coli Infection in Mice", C. VINGSBO LUNDBERG 1, T. VAARA 2, N. FRIMODT-M0LLER 1, M. VAARA 2; 1Statens Serum Inst., Copenhagen, Denmark, 2Northern Antibiotics Ltd, Helsinki, Finland

Poster FI-3997: "Pharmacokinetics (PK) of Novel Anti-Gram-negative (G-) Antibiotics in Rats", F. E. A. ALI 1, G. CAO 1, A. POUDYAL 1, T. VAARA 2, R. L. NATION 1, M. VAARA 2, J. LI 1; 1Facility for Anti-infective Drug Dev. & Innovation, Monash Univ., Melbourne, Australia, 2Northern Antibiotics Ltd, Helsinki, Finland

Professor Martti Vaara, CEO and co-founder of Northern Antibiotics Ltd., commented, "Multidrug-resistant enteric bacteria are emerging at an alarming rate. This is a serious concern, since enteric bacteria are responsible for more than 80% of all the hospital infections caused by Gram-n
'/>"/>

0

GOOD

Page: 1 2 3
Related biology technology :

1. GlaxoSmithKline and Anacor Pharmaceuticals Form Alliance to Develop Systemic Antivirals and Antibiotics Based on Boron Chemistry
2. Drugs from Johnson & Johnson/Basilea and Forest Are the Most Promising Antibiotics in the Community-Acquired Pneumonia Pipeline
3. Solving the Z rings mysteries may lead to new antibiotics
4. Skin & Aging Article Finds Derma Sciences MEDIHONEY(TM) Helps to Promote Healing Where Antibiotics Fail
5. Nektar Receives Patent Covering Pulmonary Targeted Antibiotics
6. Trius Awarded $28 Million Contract to Develop Novel Antibiotics
7. Lexicon Presents Class of Compounds Modulating TPH1, the Target for its LX1031 Investigational Drug for Irritable Bowel Syndrome
8. Touching 418 Billion Lives, Hepatitis Still Presents Significant Threat to Global Health
9. Touching 418 Million Lives, Hepatitis Still Presents Significant Threat to Global Health
10. Nektar Presents Positive Results from Phase 1 Clinical Trial of NKTR-118 (oral PEG-naloxol) at American College of Clinical Pharmacology Meeting
11. Sangamo BioSciences Presents Data Demonstrating In Vivo Protection Against HIV Infection by CCR5-ZFN Therapeutic

Post Your Comments:

Northern Antibiotics Presents New Data on Novel Polymyxin Compounds at the Joint ICAAC...(us in vitrofindings. The pharmacokine...)