rev:     November 26, 2003

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(anti-Human and others as indicated)

RDI Divison of researchd Industries Intl  offers a wide line of  antibodies. Since no one antibody works best for all applications (neutralization, blotting, histochemistry, ELISA, etc), we offer many different types of antibodies to help solve this problem. Please inquire for other applications or types of antibodies not listed below.

Product:          Polyclonal Anti- Neuroketals Antiserum (patent pending)

cat#                        RDI-NEUROKETabG    $315.00/0.25ml

Host:                   Goat

Immunogen:          Neuroketal-conjugate

Form:                  Whole serum

Concentration:      N/A

Supplied as:          0.25ml vials

 Titer:                 Suggested working dilution using neat serum:

                                    ELISA using immunizing peptide: approx 1: 4,000

                           A neuroketal-BSA conjugate is available as a positive control (Cat no. RDI-NEUROKET-AG $312.00)                        which can also be used to neutralize immunoreactivity.                       

                           IHC using formalin-fixed, paraffin-embedded sections: approx1:200

                                  IHC using paraformaldehyde-fixed, frozen sections: N/D

                                 Western blots: >1:2000

Specificity:          Neuroketal-adducted proteins

Preservative:        0.1% Sodium Azide   

                        (available azide free cat#RDI-NEUROKETABGXP $1125.00/1ml)

Storage:               Short term: Refrigerate at 4º C     Long term:    Freeze at -20º C


 * Various assay conditions require that the optimum working concentrations be determined by serial dilutions of this product.

Neuroketals and neuroprostanes are a class of compounds that result from the oxidation of docosahexenoic acid (DHA), which is enriched in the brain and retina, especially the synaptic membranes and retina. DHA is a membrane polyunsaturated fatty acid that is especially vulnerable to free radical attack because hydrogen radicals easily remove its double bonds. The DHA is oxidized to isoprostane-like compounds called neuroprostanes, which can dehydrate to form highly reactive A4/J4 neuroprostanes . Neuroprostanes can also undergo rearrangement to form D- and E-ring neuroprostanes. These reactive neuroprostanes are called neuroketals because DHA is so concentrated in the nervous system.

The fact that DHA is prone to free radical attack and free radicals has been implicated in a number of neurodegenerative diseases (Alzheimer's, Parkinson's, Hunnington's, amyotrophic lateral sclerosis and AIDS dementia) may make neuroketals a unique and prominent marker of oxidative injury in the brain. The brain may especially susceptible to oxidative injury due to its high content of polyunsaturated fatty acids, its high oxygen consumption rate and it's relative lack of antioxidant defenses. NK protein adducts have been shown to occur in normal human brain, suggesting ongoing oxidative stress in the brain. Adduction of critical proteins by NK may be highly injurious to neurons and may be very important in the pathogenesis of neurodegenerative diseases associated with increased oxidative stress. Since neuroprostanes are increased in the brains and CSF of Alzheimer's disease patients, reactive NK formed through the neuroprostane pathway may play a major role in oxidative brain injury.

A goat antiserum to an oxidized DHA-conjugate is currently available. This NK antiserum has been shown to be immunoreactive with a neuroketal/neuroprostane-modified protein by ELISA. It has also been shown to detect several major and many minor human brain protein modifications by western blot. Because neuroketals and neuroprostanes are not species-specific, this antibody should be applicable detect these compounds in a number of species. This antibody should be a valuable tool for scientists working to understand the role of neuroketal/neuroprostane modification in neurodegenerative diseases associated with oxidative stress.

A neuroketal-BSA conjugate is available as a positive control (Cat no. RDI-NEUROKET-AG $312.00) which can also be used to neutralize immunoreactivity.

RDI Divison of researchd Industries Intl

San Jose, 95123 CA Snell ave 658


or 408-780-0908

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