摘要:
A semiconductor laser device having a stripe-shaped active region defined between a pair of end surfaces, at least one of the end surfaces having a curved cross-section in a plane parallel to the active region with a radius of curvature from 10 to 300 .mu.m, the stripe of the active region having such a width that a single transverse mode and a multi-longitudinal mode are allowed. The laser beam emitted from this laser can have little astigmatism and small spot size.
摘要:
The present invention provides a method for selecting dopaminergic neuron progenitor cells, which comprises detecting any one or more of markers selected from the group consisting of CD15 (SSEA-1), CD24, CD46, CD47, CD49b, CD57, CD58, CD59, CD81, CD90, CD98, CD147, CD184, Disalogangliosid GD2, SSEA-4, CD49f, SERINC4, CCR9, PHEX, TMPRSS11E, HTR1E, SLC25A2, Ctxn3, Ccl7, Chrnb4, Chrna3, Kcnv2, Grm2, Syt2, Lim2, Mboat1, St3gal6, Slc39a12, Tacr1, Lrtm1, Dscam and CD201.
摘要:
The present invention provides markers that can selectively distinguish pancreatic progenitor cells. The present invention also provides methods for distinguishing pancreatic progenitor cells by using the markers as an indicator, and reagents to be used in the methods.The present inventors successfully identified the surface marker Nephrin-like 3 (Neph3) which is specifically expressed in pancreatic progenitor cells, and isolated pancreatic progenitor cells using the marker as an indicator or such. Viable pancreatic progenitor cells can be selected by using Neph3 as an indicator without using translated products and transcripts of any foreign genes. The marker is useful in preparing and identifying pancreatic progenitor cells which are applied to regenerative medicine or such for treatment of pancreatic diseases.
摘要:
The present inventors identified a selective marker 65B13 for GABA neuron progenitor cells of the spinal dorsal horn and cerebellum, and successfully isolated GABA neuron progenitor cells using antibodies that bind to a protein encoded by the gene. 65B13 was demonstrated to be useful as a marker to isolate GABA-producing neuron progenitor cells in the spinal dorsal horn and cerebellum. GABA neuron progenitor cells can be efficiently identified or isolated by using the identified marker as an indicator.
摘要:
In neuron transplantation therapy, in terms of safety, it is preferable to use a cell population consisting only of a desired type of cells, and to use postmitotic neurons in consideration to avoid the risk of tumorigenesis. Moreover, greater therapeutic effects would be expected through the use of earlier progenitor cells in consideration of post-transplantation viability, proper network formation ability, and such.According to the present invention, Lrp4, a gene that is specifically expressed in dopaminergic neuron proliferative progenitor cells prior to cell cycle exit, was identified. The use of Lrp4 expression in cells as an index allows for the isolation. of cells suitable for transplantation therapy of neurodegenerative diseases such as Parkinson's disease in terms of safety, survival rate, and network formation ability.
摘要:
The present invention is a probe, a primer, and an antibody, for detecting a dopaminergic neuron proliferative progenitor cell. According to the present invention, there is provided a polynucleotide probe and a polynucleotide primer for use in the detection or selection of a dopaminergic neuron proliferative progenitor cell, which can hybridize with a polynucleotide consisting of a nucleotide sequence of a Nato3 gene, or a complementary sequence thereto, and an antibody against a Nato3 protein, or a part thereof for use in the detection or selection of a dopaminergic neuron proliferative progenitor cell.
摘要:
A novel gene 65B13 expressed specifically and transiently in dopaminergic neuron precursor cells immediately after cell cycle exit was obtained by the present invention. The cellular expression of 65B13 can be used as an index to select cells that are suitable in terms of their safety, survival rate, and network formation ability, for transplant therapy of neurodegenerative diseases such as Parkinson's disease.
摘要:
As a result of screening for genes that are selectively expressed in fetal mouse brain region by subtraction method, the present inventors obtained a cDNA fragment encoding Corl1. The expression of Corl1 was examined by RT-PCR, in situ hybridization, and immunostaining using polyclonal antibodies. The results demonstrated that Corl1 was especially expressed at a high level of selectively in the central nervous system during embryonic stages. The expression patterns of Corl1 determined using various markers in embryonic spinal cord were compared to identify types of neurons expressing Corl1. The results revealed that Corl1 was specifically expressed in spinal cord interneurons dI4, dI5, dILA, and dILB. Accordingly, the present invention provides for discrimination between dI4 and dI6, neurons which previously could only be discriminated based on developmental location, using the expression of Corl1 as an indicator.
摘要:
A method for production of metal by molten-salt electrolysis of the present invention is a method for production of metal by molten-salt electrolysis which is performed by filling a molten salt of calcium chloride in an electrolysis vessel having a anode and a cathode, one of the anode or cathode is arranged surrounding the other electrode, the cathode has at least one hole communicating the inner area surrounded by the cathode with the outer area, and the molten salt flows through the communicating holes from one area including the anode (the inner area or outer area) to the other area.
摘要:
A temperature sensitive fluid-type fan coupling device comprises a closed enclosure including a casing journalled on a rotary shaft through a bearing and having a cooling fan at its outer periphery, and a cover, a partition adapted to divide the interior of the closed enclosure into an oil chamber and a torque transmission chamber within which a drive disk is located and including a oil flow adjustment opening, a dam mounted to the inner periphery of the closed enclosure in a face-to-face relation to the outer periphery of the drive disk, an oil flowing toward the inner periphery of the closed enclosure during spinning of the closed enclosure, a circulation passage extending from the torque transmission chamber to the oil chamber through the dam, a valve element mounted within the oil chamber and having one end operable to open the flow adjustment opening when external temperature exceeds a given temperature and close the flow adjustment opening when external temperature is below the given temperature, a temperature sensitive element mounted to the front of the cover and deformed according to temperature fluctuation to move the valve element, and a magnet mounted to bias the valve element in a direction to open the flow adjustment opening.