Abstract
BACKGROUND: TT virus (TTV), a novel DNA virus, was originally thought to be transmitted by transfusion. However, nonparenteral transmission is recently suspected to be a major mode of transmission. To investigate the possibility of reinfection with TTV in multiply transfused patients and to evaluate the significance of transfusion transmission of TTV in patients with hemophilia, serial changes in TTV genotype were investigated in three groups. STUDY DESIGN AND METHODS: Serial changes in TTV genotype were investigated in 16 multiply transfused patients with hemophilia, 16 age-matched patients with chronic hepatitis C, and 16 age-matched healthy subjects. RESULTS: Mixed infection with multiple TTV genotypes was common in all groups. However, changes in TTV genotype were frequent in patients with hemophilia (15/16; 93.8%) but rare in patients with chronic hepatitis C and in healthy subjects (each group: 1/16; 6.3%). CONCLUSION: Changes in TTV genotype were frequently observed in multiply transfused patients with hemophilia but not in patients with chronic hepatitis or in healthy subjects without risk of transfusion transmission. This difference may suggest that exposure to TTV or even reinfection occurs frequently in patients with hemophilia, which could be evidence of transfusion transmission of TTV in this population.
| Original language | English |
|---|---|
| Pages (from-to) | 1130-1135 |
| Number of pages | 6 |
| Journal | Transfusion |
| Volume | 41 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 26-09-2001 |
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All Science Journal Classification (ASJC) codes
- Immunology and Allergy
- Immunology
- Hematology
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TT virus genotype changes frequently in multiply transfused patients with hemophilia but rarely in patients with chronic hepatitis C and in healthy subjects. / Toyoda, Hidenori; Fukuda, Yoshihide; Nakano, Isao; Katano, Yoshiaki; Yokozaki, Shoichi; Hayashi, Kazuhiko; Ito, Yoshinori; Suzuki, Koji; Nakano, Hiroshi; Saito, Hidehiko; Takamatsu, Junki.
In: Transfusion, Vol. 41, No. 9, 26.09.2001, p. 1130-1135.Research output: Contribution to journal › Article
TY - JOUR
T1 - TT virus genotype changes frequently in multiply transfused patients with hemophilia but rarely in patients with chronic hepatitis C and in healthy subjects
AU - Toyoda, Hidenori
AU - Fukuda, Yoshihide
AU - Nakano, Isao
AU - Katano, Yoshiaki
AU - Yokozaki, Shoichi
AU - Hayashi, Kazuhiko
AU - Ito, Yoshinori
AU - Suzuki, Koji
AU - Nakano, Hiroshi
AU - Saito, Hidehiko
AU - Takamatsu, Junki
PY - 2001/9/26
Y1 - 2001/9/26
N2 - BACKGROUND: TT virus (TTV), a novel DNA virus, was originally thought to be transmitted by transfusion. However, nonparenteral transmission is recently suspected to be a major mode of transmission. To investigate the possibility of reinfection with TTV in multiply transfused patients and to evaluate the significance of transfusion transmission of TTV in patients with hemophilia, serial changes in TTV genotype were investigated in three groups. STUDY DESIGN AND METHODS: Serial changes in TTV genotype were investigated in 16 multiply transfused patients with hemophilia, 16 age-matched patients with chronic hepatitis C, and 16 age-matched healthy subjects. RESULTS: Mixed infection with multiple TTV genotypes was common in all groups. However, changes in TTV genotype were frequent in patients with hemophilia (15/16; 93.8%) but rare in patients with chronic hepatitis C and in healthy subjects (each group: 1/16; 6.3%). CONCLUSION: Changes in TTV genotype were frequently observed in multiply transfused patients with hemophilia but not in patients with chronic hepatitis or in healthy subjects without risk of transfusion transmission. This difference may suggest that exposure to TTV or even reinfection occurs frequently in patients with hemophilia, which could be evidence of transfusion transmission of TTV in this population.
AB - BACKGROUND: TT virus (TTV), a novel DNA virus, was originally thought to be transmitted by transfusion. However, nonparenteral transmission is recently suspected to be a major mode of transmission. To investigate the possibility of reinfection with TTV in multiply transfused patients and to evaluate the significance of transfusion transmission of TTV in patients with hemophilia, serial changes in TTV genotype were investigated in three groups. STUDY DESIGN AND METHODS: Serial changes in TTV genotype were investigated in 16 multiply transfused patients with hemophilia, 16 age-matched patients with chronic hepatitis C, and 16 age-matched healthy subjects. RESULTS: Mixed infection with multiple TTV genotypes was common in all groups. However, changes in TTV genotype were frequent in patients with hemophilia (15/16; 93.8%) but rare in patients with chronic hepatitis C and in healthy subjects (each group: 1/16; 6.3%). CONCLUSION: Changes in TTV genotype were frequently observed in multiply transfused patients with hemophilia but not in patients with chronic hepatitis or in healthy subjects without risk of transfusion transmission. This difference may suggest that exposure to TTV or even reinfection occurs frequently in patients with hemophilia, which could be evidence of transfusion transmission of TTV in this population.
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UR - http://www.scopus.com/inward/citedby.url?scp=17944362685&partnerID=8YFLogxK
U2 - 10.1046/j.1537-2995.2001.41091130.x
DO - 10.1046/j.1537-2995.2001.41091130.x
M3 - Article
VL - 41
SP - 1130
EP - 1135
JO - Transfusion
JF - Transfusion
SN - 0041-1132
IS - 9
ER -