Algues Fixées de la Côte Atlantique Française Contenant des Substances Antimitotiques

Chénieux, J. C.; Verbist, J. F.; Biarrd, J. F.; Boterff, J. Le; Maupas, P.; Lecocq, M.

doi:10.1055/s-2008-1075019

Cited by 7 publications

(2 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Toxicity screenings of seaweed species from various geographic regions (Caccamese & Azzolina 1979, Henríquez et al 1979, Caccamese et al 1980, Chénieux et al 1980, Naqvi et al 1980, Ballesteros et al 1992) have shown repeatedly that seaweeds are an important source of bioactive products. Consequently, seaweeds have often been targeted in the search for compounds with pharmacological properties.…”

Section: Introductionmentioning

confidence: 99%

Seasonal and spatial variation of species toxicity in Mediterranean seaweed communities: correlation to biotic and abiotic factors

Martí

Uriz²,

Turon³

2004

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

The toxicity of crude extracts of 32 seaweed species from the western Mediterranean was analysed by Microtox ® assay in spring and autumn of 1996 and 1997. The species analysed represented more than 76% of seaweed coverage in the 3 algal communities studied: photophilic and sciaphilic communities from the Cabrera Archipelago (Balearic Islands), and a hemisciaphilic community from the Medes Archipelago (northeastern Iberian Peninsula). Most species showed seasonal variation of toxicity, which was greater in species from Cabrera than in those from Medes. Both, intra and interspecies variation of toxicity were found. Moreover, comparison of mean toxicity of these communities showed that toxicity was higher in November than in June in all cases, and that the photophilic community had both the highest number and the most toxic species. To make an ecologically relevant interpretation of the toxicity detected by Microtox ® , we compared the toxicity of extracts analysed by the Microtox ® test and those analysed by the commonly used sea urchin embryo assay. In addition to seaweeds, some species of invertebrates (sponges and ascidians) were compared to ascertain whether the relationship between the 2 tests was applicable to species belonging to different phyla. These comparisons allowed us to establish that 0.5 gamma units in Microtox ® assay is the threshold value between toxic and non-toxic species. Following a light gradient from the photophilic to the sciaphilic communities, the seaweed species that were occasionally toxic increased while the always-toxic seaweeds decreased. Rhodophyta and Phaeophyta had a higher percentage of toxic species than Chlorophyta. Non-encrusting seaweed forms were more toxic than the encrusting ones, and in contrast to most other seaweeds, the non-encrusting calcareous species that increased coverage from June to November simultaneously displayed a marked decrease in toxicity. We conclude that the temporal variation of toxicity observed in the seaweeds studied may be partially explained by intrinsic factors of the species (growth rates and growth shapes).

show abstract

Section: Introductionmentioning

confidence: 99%

Seasonal and spatial variation of species toxicity in Mediterranean seaweed communities: correlation to biotic and abiotic factors

Martí

Uriz²,

Turon³

2004

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

show abstract

“…In recent years, evidence for the antitumor activity of marine algae has been accumulating (Jolles et al 1963 ;Hirase & Watanabe 1971 ;Nakazawa et al 1976 ;Kashiwagi et al 1980;Chenieux et al 1980 ;Yamamoto et al 1982) . Recently we have reported antitumor activity in crude aqueous ethanolic dialyzed extracts of Macrocystis pyrifera (MP) against P-388 lymphocytic leukemia (P-388) and Ehrlich ascites carcinoma (EA) in mice (Mayer & Panick 1982) .…”

Section: Introductionmentioning

confidence: 99%

Antitumor evaluation of marine algae in Argentina

Mayer

Panick

1984

Hydrobiologia

View full text Add to dashboard Cite

The chemistry and biological activity of herbs used in Flor-Essence? herbal tonic and Essiac

Tamayo¹,

Richardson²,

Diamond³

et al. 2000

Phytother. Res.

View full text Add to dashboard Cite

The herbal mixtures, Essiac™ and Flor‐Essence™, are sold as nutritional supplements and used by patients to treat chronic conditions, particularly cancer. Evidence of anticancer activity for the herbal teas is limited to anecdotal reports recorded for some 40 years in Canada. Individual case reports suggest that the tea improves quality of life, alleviates pain, and in some cases, impacts cancer progression among cancer patients. Experimental studies with individual herbs have shown evidence of biological activity including antioxidant, antioestrogenic, immunostimulant, antitumour, and antiocholeretic actions. However, research that demonstrates these positive effects in the experimental setting has not been translated to the clinical arena. Currently, no clinical studies of Essiac™ or Flor‐essence™ are published, but a clinical study is being planned at the British Columbia Cancer Agency by the University of Texas‐Center for Alternative Medicine (UT‐CAM) and Tzu‐Chi Institute for Complementary and Alternative Medicine. Copyright © 2000 John Wiley & Sons, Ltd.

show abstract

Algues Fixées de la Côte Atlantique Française Contenant des Substances Antimitotiques

Cited by 7 publications

References 5 publications

Seasonal and spatial variation of species toxicity in Mediterranean seaweed communities: correlation to biotic and abiotic factors

Seasonal and spatial variation of species toxicity in Mediterranean seaweed communities: correlation to biotic and abiotic factors

Antitumor evaluation of marine algae in Argentina

The chemistry and biological activity of herbs used in Flor-Essence? herbal tonic and Essiac

Contact Info

Product

Resources

About