title: Timing of serum active MMP-9 and MMP-2 levels in acute and subacute phases after spontaneous intracerebral hemorrhage.
abstract: Serum active matrix metalloproteinase (MMP)-9 and -2 levels and their tissue inhibitors TIMP-1 and -2 were measured in 28 patients with spontaneous intracerebral hemorrhage (SICH) at 24 h, 48 h and 7 days after bleeding. Perihematomal edema volume was calculated on non-enhanced computed tomography scans by using the formula AxBxC/2 at the same time points. Mean levels of serum active MMP-9 and MMP-2, as well as perihematomal edema volume, were significantly different over time (p < 0.0001). In comparison to values observed at 24 h, serum active MMP-9 mean concentrations increased at 48 h and reached their peak at 7 days, serum active MMP-2 mean levels progressively declined at 48 h and at 7 days, whereas perihematomal edema volume increased at 48 h and at 7 days. Perihematomal edema volume was positively correlated with active MMP-9 and MMP-2 at 24 h (p < 0.02 and p < 0.05, respectively) and with active MMP-9 at 48 h (p < 0.05), but was inversely correlated with active MMP-2 at 7 days (p < 0.02). These findings suggest a different involvement of active MMP-9 and MMP-2 in perihematomal-associated inflammatory response occurring in the transition from acute to subacute phases after SICH.
authors.affiliation: Section of Neurology, Department of Medical and Surgical Sciences of the Communication and Behaviour, University of Ferrara, Ferrara, Italy.
authors.forename: Massimiliano
authors.initials: M
authors.lastname: Castellazzi
authors.forename: Carmine
authors.initials: C
authors.lastname: Tamborino
authors.forename: Giuseppe
authors.initials: G
authors.lastname: De Santis
authors.forename: Francesco
authors.initials: F
authors.lastname: Garofano
authors.forename: Angelica
authors.initials: A
authors.lastname: Lupato
authors.forename: Vania
authors.initials: V
authors.lastname: Ramponi
authors.forename: Alessandro
authors.initials: A
authors.lastname: Trentini
authors.forename: Ilaria
authors.initials: I
authors.lastname: Casetta
authors.forename: Tiziana
authors.initials: T
authors.lastname: Bellini
authors.forename: Enrico
authors.initials: E
authors.lastname: Fainardi
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000704:Analysis of Variance; D001929:Brain Edema / Q000209:etiology; D002543:Cerebral Hemorrhage / Q000097:blood* / Q000150:complications / Q000000981:diagnostic imaging; D004797:Enzyme-Linked Immunosorbent Assay / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D020778:Matrix Metalloproteinase 2 / Q000097:blood*; D020780:Matrix Metalloproteinase 9 / Q000097:blood*; D008875:Middle Aged; D013997:Time Factors; D019715:Tissue Inhibitor of Metalloproteinase-1 / Q000097:blood; D019716:Tissue Inhibitor of Metalloproteinase-2 / Q000097:blood; D014057:Tomography, X-Ray Computed / Q000379:methods
chemical_list: D019715:Tissue Inhibitor of Metalloproteinase-1; D019716:Tissue Inhibitor of Metalloproteinase-2; D020778:Matrix Metalloproteinase 2; D020780:Matrix Metalloproteinase 9