Changes in serum growth factors in stroke rehabilitation patients and their relation to hemiparesis improvement.
Predicting recovery from hemiparesis after stroke is important for rehabilitation. A few recent studies reported that the levels of some growth factors shortly after stroke were positively correlated with the clinical outcomes during the chronic phase. The aim of this study was to examine the relationships between the serum levels of growth factors (vascular endothelial growth factor [VEGF], insulin-like growth factor-I [IGF-I], and hepatocyte growth factor [HGF]) and improvement in hemiparesis in stroke patients who received rehabilitation in a postacute rehabilitation hospital. Subjects were 32 stroke patients (cerebral infarction: 21 and intracerebral hemorrhage [ICH]: 11). We measured serum levels of VEGF, IGF-I, and HGF and 5 items of the Stroke Impairment Assessment Set (SIAS) for hemiparesis on admission and at discharge. Age-matched healthy subjects (n=15) served as controls. Serum levels of VEGF and HGF in cerebral infarct patients on admission were higher than those in control subjects, and the serum levels of IGF-I in stroke patients were lower than those in controls. The level of HGF in ICH patients on admission was negatively correlated with gains in SIAS, and higher outliers in HGF concentration were correlated with lower gains in SIAS. Focusing on the extremely high levels of these factors may be a predictor of the low recovery from hemiparesis after stroke.
Department of Rehabilitation Medicine II, School of Medicine, Fujita Health University, Tsu Mie, Japan. Electronic address: hideto@fujita-hu.ac.jp.
Hideto
H
Okazaki
Division of Biochemistry, Fujita Memorial Nanakuri Institute, Fujita Health University, Tsu Mie, Japan.
Hidehiko
H
Beppu
Division of Biochemistry, Fujita Memorial Nanakuri Institute, Fujita Health University, Tsu Mie, Japan.
Kenmei
K
Mizutani
Department of Rehabilitation Medicine II, School of Medicine, Fujita Health University, Tsu Mie, Japan.
Sayaka
S
Okamoto
Department of Rehabilitation Medicine II, School of Medicine, Fujita Health University, Tsu Mie, Japan.
Shigeru
S
Sonoda
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D020520:Brain Infarction / Q000097:blood* / Q000150:complications / Q000534:rehabilitation; D002543:Cerebral Hemorrhage / Q000097:blood* / Q000150:complications / Q000534:rehabilitation; D005260:Female; D017228:Hepatocyte Growth Factor / Q000097:blood*; D006801:Humans; D007334:Insulin-Like Growth Factor I / Q000378:metabolism*; D008297:Male; D008875:Middle Aged; D010291:Paresis / Q000097:blood* / Q000209:etiology / Q000534:rehabilitation; D020127:Recovery of Function; D020521:Stroke / Q000097:blood* / Q000150:complications; D000071939:Stroke Rehabilitation; D016896:Treatment Outcome; D042461:Vascular Endothelial Growth Factor A / Q000097:blood*
D042461:Vascular Endothelial Growth Factor A; D017228:Hepatocyte Growth Factor; D007334:Insulin-Like Growth Factor I
Growth factor; hemiparesis; rehabilitation; stroke