I Porsti
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Explore the profile of I Porsti including associated specialties, affiliations and a list of published articles.
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88
Citations
535
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Recent Articles
11.
Laukkarinen J, Koobi P, Kalliovalkama J, Sand J, Mattila J, Turjanmaa V, et al.
Neurogastroenterol Motil
. 2002 Apr;
14(2):183-8.
PMID: 11975718
Disturbances in sphincter of Oddi (SO) function may prevent normal bile flow and thus enhance probability of common bile duct stone (CBDS) formation. We have previously shown increased prevalence of...
12.
Inkinen J, Sand J, Arvola P, Porsti I, Nordback I
Dig Dis Sci
. 2001 Mar;
46(1):182-6.
PMID: 11270783
Sphincter of Oddi (SO) motility has an important role in the regulation of bile flow. SO function disturbances (stenosis or dyskinesia) may prevent normal bile flow and thus enhance the...
13.
Sand J, Arvola P, Porsti I, Jantti V, Oja O, Baer G, et al.
Neurogastroenterol Motil
. 2000 Dec;
12(6):573-9.
PMID: 11123713
Histamine decreases sphincter of Oddi (SO) contractility in vivo in opossum, but increases contractility in vitro in guinea-pig. In resistor-like SO, such as in pig and man, the histamine effect...
14.
Jolma P, Kalliovalkama J, Tolvanen J, Koobi P, Kahonen M, Hutri-Kahonen N, et al.
Am J Physiol Heart Circ Physiol
. 2000 Sep;
279(3):H1036-43.
PMID: 10993766
Because the effects of calcium supplementation on arterial tone in nitric oxide-deficient hypertension are unknown, we investigated the influence of elevating dietary calcium from 1.1 to 3.0% in Wistar rats...
15.
Kalliovalkama J, Kahonen M, Tolvanen J, Wu X, Voipio J, Pekki A, et al.
Pharmacol Toxicol
. 2000 Mar;
86(1):36-43.
PMID: 10720105
Treatment with the angiotensin-converting enzyme inhibitor, quinapril, has been shown to normalize increased dihydropyridine sensitivity and impaired potassium relaxation, characteristic features of arterial smooth muscle in spontaneously hypertensive rats, and...
16.
Arvola P, Wu X, Kahonen M, Makynen H, Riutta A, Mucha I, et al.
Cardiovasc Res
. 2000 Jan;
43(4):992-1002.
PMID: 10615427
Objective: Regular exercise is recommended for the non-pharmacological treatment of hypertension, but the mechanisms underlying the lowering of blood pressure remain controversial. Therefore, we studied the effects of 22-week-long training...
17.
Magga J, Kalliovalkama J, Romppanen H, Vuolteenaho O, Porsti I, Kahonen M, et al.
J Hypertens
. 1999 Dec;
17(11):1543-52.
PMID: 10608466
Objective: To study the effects of long-term treatment with the type 1 angiotensin (AT1) receptor antagonist losartan and the angiotensin-converting enzyme (ACE) inhibitor enalapril, on cardiac adrenomedullin (ADM), atrial natriuretic...
18.
Kalliovalkama J, Jolma P, Tolvanen J, Kahonen M, Hutri-Kahonen N, Wu X, et al.
Cardiovasc Res
. 1999 Oct;
42(3):773-82.
PMID: 10533618
Objective: Since the effects of angiotensin II receptor antagonism on arterial function in nitric oxide (NO)-deficient hypertension are unknown, we investigated the influence of losartan therapy (20 mg kg-1 day-1)...
19.
Kalliovalkama J, Jolma P, Tolvanen J, Kahonen M, Hutri-Kahonen N, Saha H, et al.
Am J Physiol
. 1999 Oct;
277(4):H1622-9.
PMID: 10516203
Chronic renal failure is associated with increased cardiovascular morbidity and abnormal arterial tone, but the underlying pathophysiological mechanisms are poorly understood. Therefore, we studied the responses of isolated mesenteric arterial...
20.
Kahonen M, Wu X, Schini-Kerth V, Ylikotila O, Arvola P, Tolvanen J, et al.
Naunyn Schmiedebergs Arch Pharmacol
. 1999 Aug;
360(1):63-8.
PMID: 10463335
Insulin has been suggested to prevent the induction of nitric oxide synthase (NOS) in vitro in arterial smooth muscle, but whether such a mechanism is operative in vivo is not...