M. Marttila

Publications21
h-index15
Citations1,044
Highly Influential Citations48
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Characterization of the human prolyl 4-hydroxylase tetramer and its multifunctional protein disulfide-isomerase subunit synthesized in a baculovirus expression system.
Prolyl 4-hydroxylase (EC 1.14.11.2), an alpha 2 beta 2 tetramer, catalyzes the posttranslational formation of 4-hydroxyproline in collagens. The enzyme can easily be dissociated into its subunits,… Expand
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Involvement of transcriptional and posttranscriptional mechanisms in cardiac overload-induced increase of B-type natriuretic peptide gene expression.
The induction of atrial and ventricular B-type natriuretic peptide (BNP) gene expression is one of the earliest events occurring during hemodynamic overload. To examine the molecular mechanisms for… Expand
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Brain natriuretic peptide in plasma, atria, and ventricles of vasopressin- and phenylephrine-infused conscious rats.
To evaluate the mechanisms of brain natriuretic peptide (BNP) gene expression, we determined the effect of acute cardiac overload (from 30 min to 4 h) on atrial and ventricular BNP mRNA levels in… Expand
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Endothelin-1 is involved in stretch-induced early activation of B-type natriuretic peptide gene expression in atrial but not in ventricular myocytes: acute effects of mixed ET(A)/ET(B) and AT1…
BACKGROUND The precise role of paracrine and autocrine factors in mechanical load-induced activation of cardiac gene expression is unknown. Here we report the effects of endothelin-1 (ET-1) and… Expand
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GATA4 mediates activation of the B-type natriuretic peptide gene expression in response to hemodynamic stress.
To identify the mechanisms that couple hemodynamic stress to alterations in cardiac gene expression, DNA constructs containing the rat B-type natriuretic peptide (BNP) promoter were injected into the… Expand
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Atrial stretch induces rapid increase in brain natriuretic peptide but not in atrial natriuretic peptide gene expression in vitro.
Pressure and volume overload in vivo is characterized by induction of the expression of two cardiac hormones, atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP), but whether stretch… Expand
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Mechanical load-induced alterations in B-type natriuretic peptide gene expression.
Atrial natriuretic peptide (ANP), B-type natriuretic peptide (BNP), and C-type natriuretic peptide are the known members of the mammalian natriuretic peptide system. Like ANP, BNP is a natriuretic… Expand
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The Zinc Finger-Only Protein Zfp260 Is a Novel Cardiac Regulator and a Nuclear Effector of α1-Adrenergic Signaling
ABSTRACT α1-Adrenergic receptors mediate several biological effects of catecholamines, including the regulation of myocyte growth and contractility and transcriptional regulation of the atrial… Expand
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Adrenomedullin Gene Expression in the Rat Heart is Stimulated by Acute Pressure Overload: Blunted Effect in Experimental Hypertension.
The levels of adrenomedullin (ADM), a newly discovered vasodilating and natriuretic peptide, are elevated in plasma and ventricular myocardium in human congestive heart failure suggesting that… Expand
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Coronary pressure as a determinant of B-type natriuretic peptide gene expression in isolated perfused adult rat heart.
The role of coronary flow in the regulation of ventricular B-type natriuretic peptide (BNP) gene expression was studied in isolated perfused rat heart preparation. The increase of coronary flow from… Expand
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