CRUCES DROSOPHILA MELANOGASTER PDF

of Sodium Copper Chlorophyllin (SCC) in Somatic Cells of Drosophila melanogaster Pimentel, E., Cruces, M.P., Zimmering, S. On the persistence of the. Sodium Copper Chlorophyllin (SCC) Induces Genetic Damage in Postmeiotic and Somatic Wing Cells of Drosophila melanogaster. Martha Patricia Cruces at National Institute of Nuclear Research, Mexico ยท Martha Patricia Drosophila melanogaster deficient in endogenous.

Author: Dohn Mikinos
Country: Sierra Leone
Language: English (Spanish)
Genre: Relationship
Published (Last): 20 June 2011
Pages: 327
PDF File Size: 19.56 Mb
ePub File Size: 11.22 Mb
ISBN: 721-2-44514-499-6
Downloads: 16225
Price: Free* [*Free Regsitration Required]
Uploader: Babar

However, the evidence found in this study indicated that in organisms pretreated with PP-IX and subsequently treated with Drosolhila 3the frequency of genetic damage was reduced in most of the treated groups. Antimutagenicity of the porphyrins and non-enzyme porphyrin-containing proteins.

Wrote the first draft of the manuscript: The results indicated that the lower PP-IX concentration 0. Choose a population to examine, and decide which test crosses you want to perform.

The results obtained in our study provided evidence of this effect: The influence of porphyrins on iron-catalyzed mslanogaster of hydroxyl radicals.

Photodynamic therapy of epithelial skin tumors using delta-aminolaevulinic acid and desferrioxamine. Developed at the University of Wisconsin-Madison, CGS allows students to perform virtual test crosses melanogwster model organisms. Burlington, North Carolina with distilled water. Inhibition of the mutagenicity of amino acid pyrolysis products by hemin and other biological pyrrole pigments.

Sections 1, 2, and 3, respectively. Please review our privacy policy. The first, and the most obvious, is to avoid exposure of human beings to those agents that have the ability to modify the genetic material and, therefore, increase the risk of diseases such as cancer.

  HUNGRY CRYSTAL RENN PDF

Drosophila Genetics Simulation

Post-initiation effects of chlorophyllin and indolecarbinol in rats given 1,2-dimethylhydrazine or 2-aminomethyl-imidazo. Early experiments conducted in the lab of Thomas Morgan uncovered many interesting Drosophila phenotypes ,which greatly advanced our knowledge of genetic inheritance.

In addition to mice and Arabidopsis plantstest crosses can be performed with Drosophila melanogaster fruit flies using the CGS software. On the persistence of the radioprotective effect of chlorophyllin CHLN in somatic cells of Drosophila. The danger of this element is known to occur during the reduction process of Cr VI to Cr IIIgenerating reactive oxygen species ROS that interact with the genetic material and are able to induce various alterations, for example: How do I get started?

There is evidence that some tetrapyrrols such as protoporphyrin IX PP-IXa porphyrin without a metal center and which is a precursor of hemoglobin and cytochrome, acts as an antioxidant modulating the induction of antioxidant enzymes. Absence of an inhibitor effect of PP-IX against 20 Gy gamma rays suggested that this porphyrin acted primarily by forming complexes with chromium at low doses, inactivating its genotoxic action rather than capturing or inactivating the reactive oxygen species generated by the chromium.

Below is a screen capture of a Drosophila population being investigated: Discussion The crucial role of copper in the antimutagenicity of porphyrins was demonstrated earlier by Arimoto, 17 who found that the metal-free porphyrins in Salmonella had only a minor antimutagenic effect as compared with those in which an appropriate metal was present. Energy-transfer versus electron-transfer quenching mechanisms in photooxidations.

Commercial grade SCC is a mixture of hydrolized chlorophyll derivatives including CuCle4, CuCle6, copper pheophorbide, a copper rhodin g7, and their degradation products.

In view of those finding, and due to the association of SCC with a variety of uses in humans, perhaps notably as a chemo preventive agent and food supplement, this should demand, if not in practice as yet, greater attention to the different concentration of copper in the SCC products in use.

  BEEJ SOCKET PROGRAMMING PDF

The pathophysiological significance of lipid peroxidative cell injury. Open in a separate window. Footnotes Available online 16 October When a genetic alteration is induced in a mitotically dividing cell of a developing imaginal wing disc, it may give rise to a group of mutant cells spots easily recognizable on the adult wing blade. Contributed to the writing of the manuscript: Lipid peroxidation and cellular damage in toxic liver injury. Structure of a DNA-porphyrin complex.

The importance of the nature of metal on the porphyrin ring was demonstrated by Lanfer, 18 who compared the antioxidant activity of six natural isolated chlorophyll derivatives: One of the biggest sources of Cr VI exposure is through the release of particles during stainless steel solder [7][8]. The Biological Chemistry of the Elements.

There was a problem providing the content you requested

Find articles by Stanley Zimmering. Chlorophyllin is both a positive and negative modifier of mutagenicity. At this time, aliquots of larvae from each pretreatment ddrosophila of PP-IX were treated with 0. In order to test DNA damage, we performed the wing spot test [23] as follows: Interaction of cationic porphyrins with DNA: Footnotes Author Contributions Conceived and designed the experiments: