Abstract:
The invention is directed to a method of detecting the release of substances from cell organelles by means of flow cytometry, com rising the steps of: fixing cells to be studied; permeabilizing the outer cell membrane; staining the cells with a fluorochrome compound which binds specifically to at least one substance to be studied; measuring the individual cells by means of flow cytometry while stimulating the fluorochrome compound; and determining the fluorescent strength of the cells.
Abstract:
In flow cytometry, the problem occurs that it is desirable to simultaneously determine two fluorochromes, with overlapping peak emissions. The above is achieved by means of a single laser flow cytometer with two fluorescent channels of various receiver wavelengths in a method comprising the following steps: A) stimulation of the first fluorochrome of reference cells marked with said fluorochrome, by means of a laser beam suitable for both fluorochromes; B) adjustment of the photomultiplier tube voltage in the second fluorescence channel, set for the emissions from the second fluorochrome, to a value at which no fluorescence emission signal is detected in the second fluorescence channel as a result of the first fluorochrome; C) stimulation of the fluorochrome of the sample cells, marked with the first and second fluorochrome by means of the laser beam; D) measurement of the fluorescence emission signal of the first fluorochrome in the sample cells in the first fluorescence channel set for the emissions of the first fluorochrome and E) measurement of the fluorescence emission signal of the second fluorochrome in the sample cells in the second fluorescence channel.
Abstract:
The invention relates to new assays for detecting substances influencing apoptosis for a new treatment of the disease caused by the human immunodeficiency virus (HIV). The invention is based on the discovery in the human immunodeficiency virus (HIV) of a new region homologous to the "death effector domain" (DED) and on a new antiviral strategy, based on said discovery, for eliminating HIV-infected cells from the body and preventing the acquired immune deficiency syndrome (AIDS).
Abstract:
Use of specific carotenoids in dye sensitized solar cells. Preferred carotenoids according to the present invention are listed in the following : Bixin (A), Canthaxanthin (B), Astaxanthin (C), Zeaxanthin (D), Torularhodin (E).
Abstract:
The present invention relates to a novel use of 3,3'-diindolylmethane (CAS1968-05-4) and/or its derivatives in the form of a pharmaceutical and/or nutritional composition to retard or delay typical signs of aging and/or age-related pathological changes.
Abstract:
The present invention relates to an improved process for the preparation of an extract enriched in dihydrochalcones, and more specifically enriched in phlorizin, starting from a polyphenolic fraction originating from industrial apple processing. The invention also relates to a dihydrochal-cone extract obtainable by this process, and to a food or a nutraceutical product comprising a dihydrochalcone extract of the present invention.
Abstract:
The present invention relates to a novel use of 3,3'-diindolylmethane (CAS1968-05-4) and/or its derivatives in the form of a pharmaceutical and/or nutritional composition to retard or delay typical signs of aging and/or age-related pathological changes.
Abstract:
The invention relates to a method for apoptosis diagnosis in cells wherein the cells are loaded with a substrate for ICE/Ced3 family proteases and the protease reaction of the substrate is monitored by imaging methods. The invention also concerns a kit in order to carry out this method.