Abstract:
WHAT IS ALREADY KNOWN ABOUT THIS SUBJECT:Desmopressin is a known haemostatic agent and is also being used, albeit at lower doses, during the diagnostic work-up of Cushing's syndrome, a condition characterized by excess cortisol concentrations and frequent thromboembolic events. No study has yet evaluated whether administration of desmopressin for diagnostic purposes induces significant, adverse changes in endothelial cell markers in these patients. WHAT THIS STUDY ADDS:Administration of desmopressin to patients with Cushing's disease induces changes in endothelial cell markers comparable with those observed in obese and normal weight subjects. It follows, that desmopressin testing does not induce disease-specific untoward changes in coagulatory markers in patients with endogenous hypercortisolism and its use in this context appears safe. AIMS:Desmopressin, a vasopressin analogue, is used for various clinical purposes, including haemostasis and, in recent times, the diagnostic work-up of patients with Cushing's syndrome, a condition associated with a known prothrombotic profile. We decided to evaluate whether and to what extent a diagnostic dose of desmopressin induces significant changes in endothelial parameters in patients with Cushing's disease (CD) and obese and normal weight controls. METHODS:Twelve patients with CD, 10 obese and five normal weight controls were studied. Von Willebrand antigen (VWF:Ag), tissue plasminogen activator (t-PA) and plasminogen activator inhibitor type 1 (PAI-1) were measured at baseline and up to 4 h after 10 µg desmopressin i.v. RESULTS:Desmopressin 10 µg transiently increased VWF:Ag and t-PA and decreased PAI-1 in all subjects. The magnitude of the VWF:Ag and t-PA increases after desmopressin was comparable in the three groups (VWF:Ag peak-to-basal ratio 1.9 ± 0.17, 1.5 ± 0.11 and 1.8 ± 0.13 and t-PA peak-to-basal ratio 1.6 ± 0.18, 1.6 ± 0.20 and 1.8 ± 0.24 for CD, obese and controls, respectively, all NS). The PAI-1 decrease observed in patients with CD was comparable with obese (0.7 ± 0.07 and 0.6 ± 0.09, NS) and controls (0.7 ± 0.07 vs. 0.4 ± 0.09, P= 0.08). CONCLUSIONS:Administration of desmopressin to patients with CD for diagnostic purposes induces a transitory increase in VWF:Ag counterbalanced by a decrease in PAI-1 and increase in t-PA. The magnitude of these changes is largely comparable with that observed in obese and normal weight controls. Our data show that testing with desmopressin does not induce disease-specific changes in endothelial markers in patients with CD.
journal_name
Br J Clin Pharmacoljournal_title
British journal of clinical pharmacologyauthors
Pecori Giraldi F,Ambrogio AG,Fatti LM,Rubini V,Cozzi G,Scacchi M,Federici AB,Cavagnini Fdoi
10.1111/j.1365-2125.2010.03812.xsubject
Has Abstractpub_date
2011-01-01 00:00:00pages
132-6issue
1eissn
0306-5251issn
1365-2125journal_volume
71pub_type
杂志文章abstract:AIMS:Kisangani is an area with intense malaria transmission and sulfadoxine-pyrimethamine resistance. Alternative antimalaria prophylaxis medication and protocols are needed, particularly with pregnant individuals. In this study, we compare the tolerance and effectiveness of mefloquine regimen as a split dose with a me...
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journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:2000-07-01 00:00:00
abstract:AIMS:Our goal was to evaluate the association between antidepressant use and the risk of coronary heart disease (CHD) among subjects with no history of coronary heart disease. METHODS:A search of Medline, EMBASE, PsycINFO and the Cochrane Library was performed in January 2013. Two authors independently reviewed and se...
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doi:10.1111/bcp.14698
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journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章
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abstract::The plasma concentrations of sodium cromoglycate were measured for 4 h following a single dose of 20 mg given by inhalation to six normal volunteers. A series of forced expiratory manoeuvres was performed 2 h after the dose, which resulted in a rapid and marked increase in the plasma concentrations of the drug. A simi...
journal_title:British journal of clinical pharmacology
pub_type: 临床试验,杂志文章
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abstract:WHAT IS ALREADY KNOWN ABOUT THIS SUBJECT:* Exposure to bosentan was lower in paediatric pulmonary arterial hypertension (PAH) patients treated with the marketed adult formulation at a dose of about 2 mg kg(-1) when compared with adult PAH patients. * In healthy adult subjects, bosentan pharmacokinetics are less than do...
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pub_type: 临床试验,杂志文章,多中心研究
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abstract::1 Theories linking 5-hydroxytryptamine (5-HT) with depression are briefly reviewed. The various experimental strategies adopted to investigate this relationship, examination of autopsy data, CSF metabolite data, 5-HT re-uptake patterns in human blood platelets and imipramine binding studies in human platelets, are dis...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
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journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1990.tb03740.x
更新日期:1990-07-01 00:00:00
abstract::The influence of cimetidine pretreatment on the pharmacokinetics of 5-fluorouracil (5FU) has been studied in 15 ambulant patients with carcinoma. Neither pretreatment with a single dose of cimetidine (400 mg) nor with daily treatment at 1000 mg for 1 week altered 5FU pharmacokinetics. Pretreatment with cimetidine for ...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1984.tb02484.x
更新日期:1984-09-01 00:00:00
abstract:AIMS:Although cysteamine was first used in the treatment of cystinosis in 1976 and approved by the FDA as cysteamine bitartrate (Cystagon) in 1994, surprisingly little pharmacological data are available for this compound. Cysteamine and its related drugs are currently being evaluated for the treatment of Huntington's a...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
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abstract::Six patients received 10 mg of midazolam intravenously during the anhepatic period of liver transplantation. Arterial blood was sampled during this time and for a similar period following revascularisation. The plasma was analysed using gas chromatography and electron capture detection (GC-ECD) for midazolam alpha-hyd...
journal_title:British journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1365-2125.1989.tb03429.x
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abstract::After many years of basic research we have now begun to learn how to manipulate the serotonergic mechanisms within the gut. This has lead to a number of significant advances including 5HT3 antagonists for the treatment of functional diarrhoea, 5HT4 agonists for the treatment of constipation and 5HT1 agonists for the t...
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abstract:WHAT IS ALREADY KNOWN ABOUT THIS SUBJECT:Nitrates may facilitate syncope through various pathways, but the precise mechanism of nitrate-induced syncope is still under debate. The purpose of the present study was to compare the underlying haemodynamic mechanisms in subjects without and with presyncopal symptoms during a...
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abstract::This is the second of two papers which review issues concerning complementary medicines. The first reviewed the extent of use of complementary medicines, and issues related to the regulation and pharmaceutical quality of these products; the second considers evidence for the efficacy of several well-known complementary...
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abstract:AIMS:To establish the dose-response for pharmacodynamics (bronchodilatation), safety and pharmacokinetics for a nebulized formulation of the long acting muscarinic antagonist glycopyrrolate (EP-101) with a high efficiency nebulizer in patients with chronic obstructive pulmonary disease (COPD). METHODS:Patients with mo...
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abstract::Twenty-three elderly hypertensive subjects received nitrendipine 10mg daily by mouth for 8 days. Plasma nitrendipine concentrations were measured after the first and last dose. There was no significant difference in plasma concentrations at any time point between the two days nor in derived pharmacokinetic measurement...
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