Journal of pediatric hematology/oncology · 2021
Altered von Willebrand Factor and ADAMTS13 Levels in Children With Cirrhosis and Extrahepatic Portal Hypertension.
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Islek Ali, Ilhan Derya, Ozturk Nurinnisa, Guven Burcu, Sag Elif
Аннотация
BACKGROUND/AIM: This study was concerned with whether vWF (von Willebrand factor) and a disintegrin and metalloprotease with a thrombospondin type 1 motif, member 13 (ADAMTS13) has altered in patients with cirrhosis and extrahepatic portal hypertension (EPH). We aimed to investigate changes to vWF and ADAMTS13 in children with cirrhosis and EPH.
PATIENTS AND METHODS: This study was conducted between January and October 2019 with both cirrhosis and EPH patients and with healthy volunteers. The von Willebrand factor antigen (vWF:Ag), von Willebrand Ristocetin cofactor (vWF:RCo), and ADAMTS13 antigen and activity were studied.
RESULTS: Twenty-eight children with cirrhosis, 16 children with EPH, and 20 healthy controls were included in the study. vWF:Ag and vWF:RCo levels were higher in patients with cirrhosis than in healthy controls (171.65±101.67 vs. 85.86±30.58, P<0.01 and 121.62±55.83 vs. 61.52±27.03, P<0.01, respectively). vWF:Ag and vWF:RCo levels were higher in patients with EPH than in healthy controls (133.93±80.13 vs. 85.86±30.58, P<0.01 and 103.18±58.55 vs. 61.52±27.03, P=0.02, respectively). The ADAMTS13 antigen and activity levels were lower in patients with cirrhosis than in healthy controls (0.58±0.23 vs. 0.97±0.15, P<0.01 and 49.91±22.43 vs. 86.51±22.07, P=0.02, respectively). The ADAMTS13 antigen and activity levels were lower in patients with EPH than in healthy controls (0.69±0.11 vs. 0.97±0.15, P=0.03; and 68.50±13.29 vs. 86.51±22.07, P=0.02, respectively). The increase in vWF and the decrease in ADAMTS13 were more pronounced in cirrhotic patients with autoimmune hepatitis (AIH) than in non-AIH patients.
CONCLUSIONS: While levels of vWF:Ag and vWF:RCo increased in children with cirrhosis and EPH, levels of the ADAMTS13 antigen and ADAMTS13 activity decreased. These alterations were more pronounced in patients with AIH-derived cirrhosis.
PATIENTS AND METHODS: This study was conducted between January and October 2019 with both cirrhosis and EPH patients and with healthy volunteers. The von Willebrand factor antigen (vWF:Ag), von Willebrand Ristocetin cofactor (vWF:RCo), and ADAMTS13 antigen and activity were studied.
RESULTS: Twenty-eight children with cirrhosis, 16 children with EPH, and 20 healthy controls were included in the study. vWF:Ag and vWF:RCo levels were higher in patients with cirrhosis than in healthy controls (171.65±101.67 vs. 85.86±30.58, P<0.01 and 121.62±55.83 vs. 61.52±27.03, P<0.01, respectively). vWF:Ag and vWF:RCo levels were higher in patients with EPH than in healthy controls (133.93±80.13 vs. 85.86±30.58, P<0.01 and 103.18±58.55 vs. 61.52±27.03, P=0.02, respectively). The ADAMTS13 antigen and activity levels were lower in patients with cirrhosis than in healthy controls (0.58±0.23 vs. 0.97±0.15, P<0.01 and 49.91±22.43 vs. 86.51±22.07, P=0.02, respectively). The ADAMTS13 antigen and activity levels were lower in patients with EPH than in healthy controls (0.69±0.11 vs. 0.97±0.15, P=0.03; and 68.50±13.29 vs. 86.51±22.07, P=0.02, respectively). The increase in vWF and the decrease in ADAMTS13 were more pronounced in cirrhotic patients with autoimmune hepatitis (AIH) than in non-AIH patients.
CONCLUSIONS: While levels of vWF:Ag and vWF:RCo increased in children with cirrhosis and EPH, levels of the ADAMTS13 antigen and ADAMTS13 activity decreased. These alterations were more pronounced in patients with AIH-derived cirrhosis.