摘要:
A method for discriminating and counting erythroblasts comprises the steps of: (i) staining leukocytes in a hematologic sample by adding a fluorescent labeled antibody capable of binding specifically with leukocytes to the hematologic sample; (ii) raising the permeability only of cell membranes of erythroblasts in the hematologic sample to a nucleotide fluorescent dye which does not permeate a cell membrane usually, the nucleotide fluorescent dye having a fluorescent spectrum capable of being distinguished from that of a fluorescent labeling compound of the fluorescent labeled antibody in step (i); (iii) staining nuclei of the erythroblasts in the hematologic sample with the nucleotide fluorescent dye; (iv) subjecting the hematologic sample to flowcytometry to detect at least two fluorescent signals from each cell; and (v) discriminating and counting the erythroblasts from difference in intensity between the at least two fluorescent signals.
摘要:
A hematological sample is treated with a hemolytic agent that maintains immature leukocytes in a viable state and damages other leukocytes. The damaged leukocytes are stained with a fluorochrome which can stain damaged cells. At least one kind of scattered light and at least one kind of fluorescence of the treated and stained blood cells are measured to classify and count leukocytes based on the intensities of the scattered light and the fluorescence. Highly precise measurement of immature leukocytes and simultaneous classification and counting of normal leukocytes are achieved.
摘要:
A cytoanalyzer includes a flow cell for aligning cells and permitting the same to pass therethrough, a semiconductor light emitting device for emitting a laser beam to the cells passing through the flow cell, and a light-detecting device having at least two separate photosensing portions capable of sensing two types of light scattered by each of the cells. The alignment of the cytoanalyzer may be achieved by comparing intensities of light on the at least two separate photosensing portions.
摘要:
A reagent, satisfying the undermentioned conditions, is useful for counting the number of leukocytes and measuring the hemoglobin concentration in blood samples. The reagent is free of cyanides and it is able to maintain hemoglobin in a stable state for a prolonged time. The reagent contains at least one cationic surfactant selected from the group consisting of a quaternary ammonium salt of a concentration capable of hemolyzing erythrocytes in the blood and oxidizing hemoglobin and a composition of pyridinium salts; at least one cationic, nonionic or amphoteric surfactant; and at least one hemoglobin stabilizer.
摘要:
A reagent for classification and counting of leukocytes, the reagent containing at least one dye which has the following structural formula ##STR1## where R.sub.1 is a hydrogen atom or an alkyl group, R.sub.2 and R.sub.3 each represent a hydrogen atom, a lower alkyl group or a lower alkoxy group, R.sub.4 represents a hydrogen atom, an acyl group or an alkyl group, Z represents a sulfur atom, an oxygen atom, or a carbon atom having a lower alkyl group, n denotes 0, 1 or 2, and X.sup.- represents an anion,and specifically binds to RNA to increase in fluorescence intensity, and a method for classification and counting of leukocytes which uses the reagent, whereby abnormal cells such as immature leukocytes and abnormal leukocytes can be classified and counted easily and highly accurately, and at the same time, classification and counting of normal leukocytes as well as the counting of leukocytes can be performed.
摘要:
A reagent for measuring reticulocytes which has at least one dye which specifically stains reticulocytes and at least one dye which specifically stains leukocytes.
摘要:
A hematological specimen for classifying and counting leukocytes with a flow cytometer is prepared. A sample to be assayed is prepared by eliminating influences of erythrocytes from a hematological sample without changing leukocytes morphologically; adjusting the pH value to a level suitable for staining; and staining the leukocytes with at least two dyes including Astrazon Yellow 3G capable of specifically staining at least basophils and immature granulocytes and Neutral Red capable of specifically staining at least eosinophils. Thus leukocytes contained in the hematological sample can be classified at least three or six groups including immature granulocytes by measuring a single specimen with a flow cytometer.
摘要:
A reagent for classifying leukocytes with a flow cytometer by means of optical measurements on fluorochrome-stained blood cells is included. The reagent is useful in the practice of clinical testing and includes a Neutral Red fluorochrome and either an Astrazon Organe G or an Auramine O fluorochrome to enable differentiation of leukocytes.
摘要:
A method for classifying leukocytes with a flow cytometer by means of optical measurements on fluorochrome-stained blood cells is useful in the practice of clinical testing.
摘要:
An IP encapsulator in a broadcast distributing system divides broadcast data received from an image distributing source into packets, and IP-encapsulates the packets. The IP encapsulator transmits the IP-encapsulated packets to a subscriber line terminal (SLT) via a network. The SLT includes a memory that stores therein broadcast data, and performs TOS control and transfer-route switching control based on memory occupancy of the SLT.