Showing papers by "Ilya Raskin published in 2002"

Methods for treating disorders using plant extracts

Abstract: The present invention provides materials and methods relating to mildly polar fluid extracts of plant materials, such as Artemisia plant species, useful in methods for treating diabetes and methods for modulating the activity of glucagon-like peptide-1 (GLP-1), and in methods for modulating phosphoenol pyruvate carboxykinase (PEPCK) activity in a diabetes-specific manner. The extracts are generally non-toxic and non-mutagenic and may be administered to diabetics with beneficial effect on blood glucose levels. The extracts may also be administered to non-diabetics without deleterious effect. The plants are easily grown with a minimum of time, labor, and cost. Extracts are inexpensively and quickly prepared without the need for fractionation to remove potentially deleterious compounds, and the extracts may be administered to mammals such as humans through various routes, in a variety of forms, and at convenient concentrations.

Bioengineering of a phytoremediation plant by means of somatic hybridization.

Abstract: Phytoremediation is a technology that exploits a plant's ability to remove contaminants from the environment or render toxic compounds harmless. An efficient metal phytoremediating plant must combine high biomass production and established cultivation methods with high tolerance to a specific contaminant and ability for root uptake, translocation, and compartmentalization of contaminants in the above-ground biomass. Symmetric and asymmetric somatic hybridizations were used to introduce toxic metal-resistant traits from Thlaspi caerulescens into Brassica juncea. B. juncea hypocotyl protoplasts were fused with T. caerulescens mesophyll protoplasts. The hypocotyl protoplasts of B. juncea were stained with CFDA before fusion and thus fluoresced green under UV, whereas the mesophyll protoplasts of T. caerulescens had red autofluorescense. Heteroplasmic fusion products were identified and selected by flow cytometry and cell sorting. All putative hybrids grown in the greenhouse had morphological characteristics of B. juncea. A Thlaspi-specific repetitive sequence was hybridized to total DNA of plants, including the parental species. All plants from both symmetric and asymmetric fusions showed Thlaspi-specific hybridization patterns while B. juncea did not exhibit any hybridization signal. Hybrid plants, produced by asymmetric somatic hybridization between the two species, demonstrated high metal accumulation potential, tolerance to toxic metals, and good biomass production.

Method for treating type 2 diabetes with an extract of Artemisia

Abstract: The present invention provides materials and methods relating to mildly polar fluid extracts of plant materials, such as Artemisia plant species, useful in methods for treating diabetes and methods for modulating the activity of glucagon-like peptide-1 (GLP-1), and in methods for modulating phosphoenol pyruvate carboxykinase (PEPCK) activity in a diabetes-specific manner. The extracts are generally non-toxic and non-mutagenic and may be administered to diabetics with beneficial effect on blood glucose levels. The extracts may also be administered to non-diabetics without deleterious effect. The plants are easily grown with a minimum of time, labor, and cost. Extracts are inexpensively and quickly prepared without the need for fractionation to remove potentially deleterious compounds, and the extracts may be administered to mammals such as humans through various routes, in a variety of forms, and at convenient concentrations.