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| Title |
Human Tissue Kallikrein Activity in Angiographically Documented Chronic Stable Coronary Artery Disease
|
|---|---|
| Published in |
Arquivos Brasileiros de Cardiologia, September 2015
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| DOI | 10.5935/abc.20150109 |
| Pubmed ID | |
| Authors |
Estêvão Lanna Figueiredo, Carolina Antunes Magalhães, Karlyse Claudino Belli, Ari Mandil, José Carlos Faria Garcia, Rosanã Aparecida Araújo, Amintas Fabiano de Souza Figueiredo, Lucia Campos Pellanda |
| Abstract |
Human tissue kallikrein (hK1) is a key enzyme in the kallikrein-kinin system (KKS). hK1-specific amidase activity is reduced in urine samples from hypertensive and heart failure (HF) patients. The pathophysiologic role of hK1 in coronary artery disease (CAD) remains unclear. To evaluate hK1-specific amidase activity in the urine of CAD patientsMethods:Sixty-five individuals (18-75 years) who underwent cardiac catheterism (CATH) were included. Random midstream urine samples were collected immediately before CATH. Patients were classified in two groups according to the presence of coronary lesions: CAD (43 patients) and non-CAD (22 patients). hK1 amidase activity was estimated using the chromogenic substrate D-Val-Leu-Arg-Nan. Creatinine was determined using Jaffé's method. Urinary hK1-specific amidase activity was expressed as µM/(min · mg creatinine) to correct for differences in urine flow rates. Urinary hK1-specific amidase activity levels were similar between CAD [0.146 µM/(min ·mg creatinine)] and non-CAD [0.189 µM/(min . mg creatinine)] patients (p = 0.803) and remained similar to values previously reported for hypertensive patients [0.210 µM/(min . mg creatinine)] and HF patients [0.104 µM/(min . mg creatinine)]. CAD severity and hypertension were not observed to significantly affect urinary hK1-specific amidase activity. CAD patients had low levels of urinary hK1-specific amidase activity, suggesting that renal KKS activity may be reduced in patients with this disease. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Brazil | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 13 November 2015.
All research outputs
#17,286,379
of 25,374,647 outputs
Outputs from Arquivos Brasileiros de Cardiologia
#524
of 1,210 outputs
Outputs of similar age
#166,226
of 277,644 outputs
Outputs of similar age from Arquivos Brasileiros de Cardiologia
#4
of 17 outputs
Altmetric has tracked 25,374,647 research outputs across all sources so far. This one is in the 21st percentile – i.e., 21% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,210 research outputs from this source. They receive a mean Attention Score of 4.0. This one is in the 39th percentile – i.e., 39% of its peers scored the same or lower than it.
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We're also able to compare this research output to 17 others from the same source and published within six weeks on either side of this one. This one is in the 41st percentile – i.e., 41% of its contemporaries scored the same or lower than it.