Crystal Koh

Dr.

Former affiliation
  • 860 Citations
  • 13 h-Index
19932017
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Research Output 1993 2017

  • 860 Citations
  • 13 h-Index
  • 20 Article
  • 3 Review article
  • 1 Chapter
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Article
2017
4 Citations (Scopus)

Altered blood cytokines, CD4 T cells, NK and neutrophils in patients with obstructive sleep apnea

Said, E. A., Al-Abri, M. A., Al-Saidi, I., Al-Balushi, M. S., Al-Busaidi, J. Z., Al-Reesi, I., Koh, C. Y., Hasson, S. S., Idris, M. A., Al-Jabri, A. A. & Habbal, O., Oct 1 2017, In : Immunology Letters. 190, p. 272-278 7 p.

Research output: Contribution to journalArticle

Obstructive Sleep Apnea
Neutrophils
Cytokines
T-Lymphocytes
Natural Killer Cells
2016
2 Citations (Scopus)

A potential inhibitory profile of liver CD68+ cells during HCV infection as observed by an increased CD80 and PD-L1 but not CD86 expression

Said, E. A., Al-Reesi, I., Al-Riyami, M., Al-Naamani, K., Al-Sinawi, S., Al-Balushi, M. S., Koh, C. Y., Al-Busaidi, J. Z., Idris, M. A. & Al-Jabri, A. A., Apr 1 2016, In : PLoS One. 11, 4, e0153191.

Research output: Contribution to journalArticle

Liver
hepatocytes
Infection
infection
liver
2 Citations (Scopus)

Frequency of TLR4 (1063A/G and 1363C/T) polymorphisms in healthy and HIV-infected Omani individuals and their relationship to viral load and T cell count

Said, E. A., Al-Yafei, F., Zadjali, F., Al-Balushi, M. S., Hasson, S. S., Al-Mahroqi, S. H., Koh, C. Y., Al-Naamani, K., Al-Busaidi, J. Z., Idris, M. A., Balkhair, A. & Al-Jabri, A. A., Apr 4 2016, In : Genetics and Molecular Research. 15, 2, 15027671.

Research output: Contribution to journalArticle

CD4 Lymphocyte Count
Viral Load
Single Nucleotide Polymorphism
Cell Count
HIV
11 Citations (Scopus)

Increased CD86 but Not CD80 and PD-L1 expression on liver CD68+ cells during chronic HBV infection

Said, E. A., Al-Reesi, I., Al-Riyami, M., Al-Naamani, K., Al-Sinawi, S., Al-Balushi, M. S., Koh, C. Y., Al-Busaidi, J. Z., Idris, M. A. & Al-Jabri, A. A., Jun 1 2016, In : PLoS One. 11, 6, e0158265.

Research output: Contribution to journalArticle

Liver
hepatocytes
Infection
infection
T-cells
2014
15 Citations (Scopus)
HIV Infections
Single Nucleotide Polymorphism
Cell Count
Genotype
HIV
1 Citation (Scopus)

Connaissances, attitudes et comportements souhaités concernant le dépistage du VIH et l'autoprotection: Une enquête auprès de femmes enceintes omanaises

Translated title of the contribution: Knowledge, attitudes and intended behaviours towards HIV testing and self-protection: a survey of Omani pregnant womenAl-Jabri, A. A., Youssef, R. M., Hasson, S. S., Al-Belushi, M., Balkhair, A. A., Al-Saadoon, M., Mathew, M., Al-Mahroqi, S., Said, E., Koh, C. Y. & Idris, M. A., Oct 1 2014, In : Eastern Mediterranean Health Journal. 20, 10, p. 614-622 9 p.

Research output: Contribution to journalArticle

Pregnant Women
HIV
Oman
Disclosure
Antiviral Agents

Genetic diversity and prevalence of CCR2-CCR5 gene polymorphisms in the Omani population

Al-Mahruqi, S. H., Zadjali, F., Beja-Pereira, A., Koh, C. Y., Balkhair, A. & Al-Jabri, A. A., 2014, In : Genetics and Molecular Biology. 37, 1, p. 7-14 8 p.

Research output: Contribution to journalArticle

Alleles
Haplotypes
Population
Genes
Indian Ocean
2 Citations (Scopus)
CCR Receptors
Population
Genes
Chemokines
Ethnic Groups
2005
8 Citations (Scopus)
Chimerism
Homologous Transplantation
Bone Marrow Transplantation
Allografts
Bone Marrow
2003
30 Citations (Scopus)

NK-cell purging of leukemia: Superior antitumor effects of NK cells H2 allogeneic to the tumor and augmentation with inhibitory receptor blockade

Koh, C. Y., Ortaldo, J. R., Blazar, B. R., Bennett, M. & Murphy, W. J., Dec 1 2003, In : Blood. 102, 12, p. 4067-4075 9 p.

Research output: Contribution to journalArticle

Purging
Natural Killer Cells
Tumors
Bone
Leukemia
204 Citations (Scopus)

The proteasome inhibitor PS-341 sensitizes neoplastic cells to TRAIL-mediated apoptosis by reducing levels of c-FLIP

Sayers, T. J., Brooks, A. D., Koh, C. Y., Ma, W., Seki, N., Raziuddin, A., Blazar, B. R., Zhang, X., Elliott, P. J. & Murphy, W. J., Jul 1 2003, In : Blood. 102, 1, p. 303-310 8 p.

Research output: Contribution to journalArticle

Proteasome Inhibitors
Tumors
Apoptosis
Cells
Neoplasms
2002
21 Citations (Scopus)

NK inhibitory-receptor blockade for purging of leukemia: Effects on hematopoietic reconstitution

Koh, C. Y., Raziuddin, A., Welniak, L. A., Blazar, B. R., Bennett, M. & Murphy, W. J., 2002, In : Biology of Blood and Marrow Transplantation. 8, 1, p. 17-25 9 p.

Research output: Contribution to journalArticle

KIR Receptors
Natural Killer Cells
Leukemia
Coculture Techniques
Neoplasms
2001
122 Citations (Scopus)

Augmentation of antitumor effects by NK cell inhibitory receptor blockade in vitro and in vivo

Koh, C. Y., Blazar, B. R., George, T., Welniak, L. A., Capitini, C. M., Raziuddin, A., Murphy, W. J. & Bennett, M., May 15 2001, In : Blood. 97, 10, p. 3132-3137 6 p.

Research output: Contribution to journalArticle

Natural Killer Cell Receptors
Tumors
Major Histocompatibility Complex
Natural Killer Cells
KIR Receptors
2000
23 Citations (Scopus)

The functional relevance of NK-cell-mediated upregulation of antigen-specific IgG2a responses

Koh, C. Y. & Yuan, D., Sep 15 2000, In : Cellular Immunology. 204, 2, p. 135-142 8 p.

Research output: Contribution to journalArticle

Natural Killer Cells
Up-Regulation
Plasma Cells
Antigens
T Independent Antigens
1999
10 Citations (Scopus)

The mechanism of activation of NK-cell IFN-γ production by ligation of CD28

Cheung, J. C., Koh, C. Y., Gordon, B. E., Wilder, J. A. & Yuan, D., Apr 1999, In : Molecular Immunology. 36, 6, p. 361-372 12 p.

Research output: Contribution to journalArticle

Natural Killer Cells
Ligation
Interleukin-12
Cytokines
Messenger RNA
1998

Mechanism of induction of NK cell-IFN-γ production by anti-CD28 and IL-12

Koh, C. Y., Cheung, J. C. & Yuan, D., Mar 20 1998, In : FASEB Journal. 12, 5

Research output: Contribution to journalArticle

interleukin-12
natural killer cells
Interleukin-12
Natural Killer Cells
Chemical activation
1997
25 Citations (Scopus)

The Effect of NK Cell Activation by Tumor Cells on Antigen-Specific Antibody Responses

Koh, C. Y. & Yuan, D., Nov 15 1997, In : Journal of Immunology. 159, 10, p. 4745-4752 8 p.

Research output: Contribution to journalArticle

Natural Killer Cells
Antibody Formation
Antigens
Interleukin-12
Neoplasms
1996
76 Citations (Scopus)

The role of NK cells during in vivo antigen-specific antibody responses

Wilder, J. A., Koh, C. Y. & Yuan, D., Jan 1 1996, In : Journal of Immunology. 156, 1, p. 146-152 7 p.

Research output: Contribution to journalArticle

Natural Killer Cells
Antibody Formation
Antigens
Down-Regulation
Immunoglobulin G

The role of NK cells in enhancement of IGG2A response and ADCC in early immune responses

Koh, C. Y. & Yuan, D., 1996, In : FASEB Journal. 10, 6

Research output: Contribution to journalArticle

Antibody-Dependent Cell Cytotoxicity
natural killer cells
Natural Killer Cells
Tumors
immune response
1993
20 Citations (Scopus)

Prolactin receptor expression by lymphoid tissues in normal and immunized rats

Koh, C. Y. & Phillips, J. T., 1993, In : Molecular and Cellular Endocrinology. 92, 2

Research output: Contribution to journalArticle

Prolactin Receptors
Lymphoid Tissue
Rats
Tissue
Immunization