M
M. Ohashi
Researcher at American Red Cross
Publications - 18
Citations - 408
M. Ohashi is an academic researcher from American Red Cross. The author has contributed to research in topics: Typing & Human leukocyte antigen. The author has an hindex of 9, co-authored 16 publications receiving 386 citations.
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Journal ArticleDOI
Disputed Maternity Leading to Identification of Tetragametic Chimerism
Neng Yu,Margot S. Kruskall,Juan J. Yunis,Joan H M Knoll,Lynne Uhl,S. M. Alosco,M. Ohashi,Olga P. Clavijo,Zaheed Husain,Emilio Yunis,Jorge J. Yunis,Edmond J. Yunis +11 more
TL;DR: A phenotypically normal woman who was found to have tetragametic chimerism after histocompatibility testing of family members suggested that she was not the biologic mother of two of her three children is described.
Journal ArticleDOI
HLA Class I and Class II Conserved Extended Haplotypes and Their Fragments or Blocks in Mexicans: Implications for the Study of Genetic Diversity in Admixed Populations
Joaquín Zúñiga,Neng Yu,Rodrigo Barquera,S. M. Alosco,M. Ohashi,Tatiana Lebedeva,Victor Acuña-Alonzo,María Yunis,Julio Granados-Montiel,Alfredo Cruz-Lagunas,Gilberto Vargas-Alarcón,Tatiana S. Rodriguez-Reyna,Marcelo Fernandez-Vina,Julio Granados,Edmond J. Yunis +14 more
TL;DR: The aim of this study was to describe the HLA diversity in Mexican admixed individuals and it was found that HLA blocks and CEHs are primarily from Amerindian and Caucasian origin, with smaller participation of African and recent Asian ancestry.
Journal ArticleDOI
Validation of DNA-based HLA-A and HLA-B testing of volunteers for a bone marrow registry through parallel testing with serology.
Harriet Noreen,Neng Yu,Michelle Setterholm,M. Ohashi,J. Baisch,R. Endres,Marcelo Fernandez-Vina,U. Heine,Susan Hsu,Malek Kamoun,Y. Mitsuishi,Dimitri S. Monos,L. Perlee,S. Rodriguez-Marino,Anajane G. Smith,Soo Young Yang,K. Shipp,J Hegland,Carolyn Katovich Hurley +18 more
TL;DR: DNA-based testing correctly typed nearly 99% of the donors at HLA-A, more than 98% at H LA-B, and more than 97% at both HLA -A and -B validating this methodology for registry typing.
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Error rate for HLA-B antigen assignment by serology: implications for proficiency testing and utilization of DNA-based typing methods.
M. V. Bozón,Julio C. Delgado,Annamalai Selvakumar,Olga P. Clavijo,Marcela Salazar,M. Ohashi,S. M. Alosco,J. Russell,Neng Yu,Bo Dupont,Edmond J. Yunis,Edmond J. Yunis +11 more
TL;DR: The results suggest that more accurate typing results can be achieved by complementing serologic testing with DNA-based typing techniques, and the level of resolution for HLA-B antigen assignment can be obtained by this combination of serology and limited DNA- based typing.
Journal ArticleDOI
Accurate typing of HLA-A antigens and analysis of serological deficiencies.
TL;DR: The technique described is useful for large-scale bone marrow donor typings for cells with poor viability, and for resolving ambiguous results including false-positive assignments of homozygous cells.