5/8/2023 0 Comments Brain app staining![]() Newly developed FSB is also utilized for highly sensitive amyloid staining. In addition, BSB is not only a staining dye, it is also able to block the amyloid formation FAP’s amyloid precursor TTR. BSB has twice the fluoresence strength of Congo red. Skovronsky confirmed that the dye accumulates in senile plaque of brain tissue of transgenic mice Tg2576 that express the amyloid precursor protein of Aβ(APP) 18 hours after the intravenous injection of BSB.1) Not limited to Aβ, Ando and others have announced that amyloid deposits in various systemic amyloidosis (AA, AL, ATTR, Ascr, Aβ 2M) are stained more sensitively with BSB than Congo red, which is a common dye used for β sheet staining. The dye 1-Bromo-2,5-bis(3-carboxy-4-hydroxystyryl)benzene (BSB) has been used for detecting amyloids because of its high affinity with amyloid β peptide (Aβ), the amyloid associated with Alzheimer’s disease. ![]() The proteins that cause amyloidosis can be largely divided into two groups: amylids that are deposited in various organs throughout the body (systemic amyloidosis) such as the disorders listed above, and [ amyloids that are deposited in a particular organ, such as the brain in the case of Alzheimer’s disease (localized amyloidosis). It is estimated that there are hundreds of patients throughout Japan. Disorders among many Japanese include immunocytic amyloidosis (AL amylodosis), responsive AA amyloidsis, familial amyloid polyneuropathy (FAP), and dialysis amyloidsis (DRA). Amyloidosis, a disease which has been identified as a particular disorder by the Japanese Ministry of Health, is an illness that involves an abnormal protein called amyloid that has a β sheet structure, aggregates in fibers, and is deposited on the outside of internal organs and systems, inhibiting the function of those organs and systems. ![]()
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