Keijiro Samejima - Concepedia

Author

Keijiro Samejima

Josai University

Also Known As

K Samejima, KEIJIRO SAMEJIMA, Keijiro SAMEJIMA, Keijiro Samejima

134

Publications

2.2K

Citations

H-Index

135

Concepts

All Affiliations

Josai University Tokyo Biochemical Research Foundation Gunma University Musashino University The University of Tokyo

About

Keijiro Samejima is an author at Josai University specializing in medicine, pharmacology, and biochemistry.

Top Concepts

#	Concept	H-Index	Publications	Citations
1	Medicine	20	43	1.1K
2	Natural Sciences	15	23	594
3	Engineering	13	17	592
4	Health Sciences	5	5	90
5	Public Health	3	3	70

Keijiro Samejima

Publications

Citations

H-Index

Page 1

	Year	Citations
Condensation of ninhydrin with aldehydes and primary amines to yield highly fluorescent ternary products Keijiro Samejima, Wallace Dairman, Sidney Udenfriend Analytical Biochemistry Organic Material ChemistryFluorescent Ternary ProductsEngineeringPrimary AminesOrganic Chemistry	1971	98
Determination of Protonation Sites in Thermospermine and in Some Other Polyamines by <sup>15</sup>N and <sup>13</sup>C Nuclear Magnetic Resonance Spectroscopy Yasuko Takeda, Keijiro Samejima, Kozo Nagano, European Journal of Biochemistry	1983	87
Condensation of ninhydrin with aldehydes and primary amines to yield highly fluorescent ternary products Keijiro Samejima, Wallace Dairman, James Stone, Analytical Biochemistry Organic Material ChemistryFluorescent Ternary ProductsEngineeringPrimary AminesOrganic Chemistry	1971	82
N1-Aminopropylagmatine, a New Polyamine Produced as a Key Intermediate in Polyamine Biosynthesis of an Extreme Thermophile, Thermus thermophilus Mio Ohnuma, Yusuke Terui, Masatada Tamakoshi, Journal of Biological Chemistry	2005	74
Separation of fluorescamine derivatives of aliphatic diamines and polymines by high-speed liquid chromatography Keijiro Samejima Journal of Chromatography A Chemical EngineeringEngineeringFluorescamine DerivativesSeparation ScienceSelective Separation	1974	65
Syntheses of a series of linear pentaamines with three and four methylene chain intervals. Masaru Niitsu, Keijiro Samejima Chemical and Pharmaceutical Bulletin Combinatorial ChemistryBiochemistryMethylene Chain IntervalsLinear PentaaminesNatural Sciences	1986	65
Systematic analysis of naturally occurring linear and branched polyamines by gas chromatography and gas chromatography—mass spectrometry Masaru Niitsu, Keijiro Samejima, Shigeru Matsuzaki, Journal of Chromatography A EngineeringGas ChromatographyMedicineSystematic AnalysisMass Spectrometry	1993	64
Effects of inhibitors of spermidine synthase and spermine synthase on polyamine synthesis in rat tissues Akira Shirahata, Norio Takahashi, Takanobu BEPPU, Biochemical Pharmacology SpermatogenesisMedicineSpermidine SynthaseNeuropharmacologySpermine Synthase	1993	61
A sensitive fluorometric method for the determination of aliphatic diamines and polyamines in biological materials by high-speed liquid chromatography Keijiro Samejima, M Kawase, Shunji Sakamoto, Analytical Biochemistry Chemical MeasurementEngineeringBiochemistryGas ChromatographySensitive Fluorometric Method	1976	60
Correlation between the effects of polyamine analogues on DNA conformation and cell growth. Hirak S. Basu, Burt G. Feuerstein, Dennis F. Deen, PubMed Medicinal ChemistryNucleic Acid ChemistryPolyamine AnaloguesBiochemistryNatural Sciences	1989	60

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