scholarly journals Serum Neutrophıl Gelatınase-Assocıated Lıpocalın Levels in Patients with Non-Dipper Hypertension

2015 ◽  
Vol 38 (1) ◽  
pp. 53 ◽  
Author(s):  
Gökhan Aksan ◽  
Sinan İnci ◽  
Gökay Nar ◽  
Serhat Siğirci ◽  
Ömer Gedikli ◽  
...  

Purpose: Neutrophil gelatinase-associated lipocalin (NGAL) is a protein belonging to the lipocalin superfamily and plays a role in atherosclerosis, renal injury and inflammation. The present study aimed to investigate serum NGAL concentrations in groups of patients with dipper and non-dipper hypertension (HT) and to characterize the relationship between NGAL concentration and circadian blood pressure in hypertensive patients. Methods: A total of 41 (22 male, 19 female, mean age: 56.1 ±8.9 years) non-dipper HT patients, 40 (19 male, 21 female, mean age: 54.0 ±10.0 years) dipper HT patients and 42 age- and gender-matched healthy individuals were enrolled in the study. Dipper and non-dipper HT were diagnosed via ambulatory blood pressure monitoring. Serum NGAL concentrations were measured by enzyme-linked immunosorbent assay from blood samples obtained from patients. Results: Serum NGAL concentrations were found to be significantly higher in the non-dipper and dipper HT patient groups in comparison with the control group (84.9 ±23.0 ng/ml and 62.1 ±17.8 vs. 46.6 ± 13.7 ng/ml, p

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Hahn-Ey Lee ◽  
Sun Hee Lee ◽  
Minki Baek ◽  
Hwang Choi ◽  
Kwanjin Park

Background. The study assessed whether measurement of urinary biomarkers of acute kidney injury could be helpful in diagnosing acute pyelonephritis and subsequent scarring. Method. Escherichia coli J96 (0.3 mL inoculum containing 1×109/mL) was directly injected into the renal cortex of 3-week-old female Sprague Dawley rats (n=20), with saline substituted in a control group (n=10). Following the injection, urine was collected 2, 7, 14, 28, and 42 days after injection. Urinary neutrophil gelatinase associated lipocalin (NGAL), kidney injury molecule-1 (Kim-1), and interleukin-18 were quantitatively measured using enzyme-linked immunosorbent assay (ELISA). The levels of the biomarkers were adjusted for creatinine. Time course changes within a group or between the groups were compared. Correlation analysis was performed to understand the relationship between urinary levels and histological scarring. Results. Significantly elevated urinary NGAL was evident at two and seven days after injection, and Kim-1 was elevated at two days after injection. Receiver operating characteristic analyses confirmed the sensitivity of these markers at these times. No urinary marker at acute stage of APN was correlated with the amount of future scarring, negating their predictive value. Conclusion. Urinary NGAL and Kim-1 could be helpful in diagnosing febrile urinary tract infection in children.


Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Bae Keun Kim ◽  
Lee Yonggu ◽  
Lim Young-Hyo ◽  
Jinho Shin

Introduction: There have been many reports showing that regular physical exercise can reduce the blood pressure (BP). Thus physical exercise is one of the important components of lifestyle modification of hypertension. It is known that nocturnal BP is an independent factor for the cardiovascular event but there are few studies for the relationship between physical exercise and nocturnal BP. Hypothesis: Hypothesized regular physical exercise reduced nocturnal BP, therefore, we aimed to analyze the relationship between regular physical exercise assessed by a questionnaire (7-day physical activity recall) and nocturnal BP in the general population. Methods: Among 4145 subjects whose data for both clinical data and ambulatory blood pressure monitoring (ABPM) data file from the 5308 Korean ABPM (KorABP) study subjects, 3689 subjects were analyzed. The exclusion criteria was age less than 20 years (n=84), missing data for the questionnaire for physical exercise (n=372). Physical exercise was defined as regular structured exercise which intensity was heavier than the fast walking for 30 minutes. The count was recorded as the number per week. Results: Age was 55.5 ± 14.1 years and female was 45.9 %. Prevalence of hypertension, antihypertensive medication (AHM), diabetes and cardiovascular diseases were 58.9%, 32.5%, 13.0%, and 21.1%, respectively. Daytime and nighttime systolic BP was 138.5 ± 17.2 mmHg and 126.3 ± 18.8 mmHg. When adjusted for age, sex, BMI, and AHM, exercise frequency was independently decreased daytime systolic BP (β = -0.52 mmHg per ex-ercise, p = 0.02). For the nighttime systolic BP further adjusted by daytime systolic BP and sleep quality, ex-ercise frequency was an independent factor (β = -0.26 mmHg per exercise, p = 0.002). The statistical significances were observed even for only for 1 times per week. When further adjusted by smoking, exercise frequency was in-dependent for nocturnal dipping (β = 0.18% per exercise, p = 0.015). Conclusions: Regular physical exercise is independently associated with lower nocturnal BP also lower daytime BP and with increased nocturnal dipping, which was independent of AHM status.


2021 ◽  
Author(s):  
Ming Fu ◽  
Xiangming Hu ◽  
Shixin Yi ◽  
Shuo Sun ◽  
Ying Zhang ◽  
...  

Abstract Masked hypertension (MHT), as an independent clinical entity, its subclinical cardiac dysfunction can be early detected by left ventricular global longitudinal strain (GLS). Yet the relationship between MHT and GLS is still unclear. Therefore, we tried to conduct a community-based cross-sectional study to define this relationship. A total of 308 consecutively enrolled participants from Dongguan, China, were divided into non-hypertension (NHT) and MHT groups. Baseline characteristics were recorded, and 2-dimentional speckle-tracking echocardiography and 24-hour ambulatory blood pressure monitoring were performed. Univariate and multivariate linear regression analyses were used to assess the associations between MHT and GLS, and the dose–response curve was plotted to demonstrate their relationship. The mean age of the NHT and MHT groups was 57 and 59 years, respectively. Signs of left ventricular diastolic function, E/A (1.01 ± 0.26 vs 0.86 ± 0.23, P < 0.001) and E/e’ (8.58 ± 2.02 vs 11.70 ± 3.37, P < 0.001) were reduced in the MHT group while those of the NHT group were nearly normal. The MHT group also showed a significantly lower (‘worse’) GLS than NHT (-15.79% ± 2.81% vs -19.62% ± 1.67% vs , P < 0.001) while left ventricular ejection fraction (LVEF) did not differ between the groups. Worse GLS was independently and significantly associated with MHT both in univariate (odds ratio [OR]: 1.97, P < 0.001) and stepwise multivariate regression analysis (OR: 1.99, P < 0.001). Further analysis showed adjusted nonlinear correlation between MHT and GLS. Our study described the relationship between MHT and GLS and concluded that -14% of GLS as the cut-off value reflected MHT-associated myocardial injury before LVEF decreases.


2021 ◽  
Vol 121 (1) ◽  
pp. 32-42
Author(s):  
Inna Berdnyk

The article summarizes the arguments and counterarguments within the scientific discussion on the methods of diagnosing hypertension and features of blood pressure control. The main purpose of this study is to evaluate the effectiveness of blood pressure monitoring in patients with normal weight and overweight and to determine their level of adherence to treatment. The relevance of the study about this pathology is that hypertension is the leading cause of cardiovascular disease and premature death worldwide. The prevalence of hypertension among the adult population is 30-45%, in 2018 the number of patients with hypertension in the world was about 1.38 billion, with more than 165 million living in Central and Eastern Europe. Systematization of literature data showed that despite the widespread use of antihypertensive drugs, only about 30% of patients have optimal blood pressure. The methodology of the study is to evaluate the use of telemedicine technologies for self-monitoring of blood pressure in patients with normal weight and overweight and increase their compliance. The study was conducted in Kyiv, Ukraine during 2018-2020, and included 111 patients aged 18 to 65 years with a previously diagnosed hypertension. By randomization, they were divided into the main group (used blood pressure monitoring) and the control group (used office and home blood pressure monitoring). The article presents the results that in the patients of the main group at the end of the study the average daily systolic and diastolic blood pressure were significantly lower in comparison with both the initial level of the group and in comparison with the control. The baseline adherence to treatment in patients in both groups was low. However, at the end of the study, the adherence of patients in the main group to treatment increased by 40.3%, while in the control group no significant changes were detected. In addition, a correlation was found between patients with overweight and less adherence to regular medication, more frequent skipping of the drug and self-withdrawal with improvement compared to patients with normal body weight. It was also noted that the patients in the main group at the end of the study significantly reduced the level of anxiety compared with the control. The study empirically confirms and theoretically proves that the use of blood pressure telemonitoring can be considered as an alternative to the standard approach that increases adherence to treatment. The results of the study will be useful for primary care physicians, cardiologists, therapists.


2021 ◽  
Vol 42 (Supplement_1) ◽  
Author(s):  
S Ermasova ◽  
K Popov ◽  
Y Shvarts

Abstract Purpose Low blood pressure may be as harmful as high. Symptomatic hypotensive episodes should be a manifestation of circulatory disorders of hypertension – mediated organs especially among hypertensive patients. However, the association of such episodes with blood pressure variability is unknown. Aim To study the relationship between the symptomatic hypotensive episodes and the daily blood pressure variability according to the ambulatory blood pressure monitoring (ABPM) in patients with hypertension. Materials and methods 106 patients aged between 40 and 65 years with hypertension were studied. A questionnaire developed by the authors was used to identify symptomatic hypotension. During the study all the subjects had ABPM. Daily blood pressure variability was defined as standard deviation. Results Among all patients, symptomatic hypotensive episodes were observed in 60.6%. Among patients without myocardial infarction or stroke in anamnesis - 52.4%, with ones - 75% participants (p=0.05). Among patient without myocardial infarction or stroke and with symptomatic hypotensive episodes, the high variability of daily systolic BP was observed in 36% of the subjects and averaged 14.3 mm Hg, in the absence of symptomatic hypotensive episodes, the variability of daily systolic BP was 16.3 mm Hg, with a variety of blood pressure exceeding the norm, 80% of the participants (p&lt;0.05). In case of stroke or myocardial infarction in anamnesis and the presence of symptomatic hypotensive episodes, the systolic BP variability of daytime (18.0 mm Hg) and nighttime (14.8 mm Hg) was the highest. The proportion of participants with daily systolic BP variability exceeding the norm was 78%. In the absence of symptomatic hypotensive episodes, the blood pressure variability indicators did not deviate from the norm (p&lt;0.05). Conclusion Heart attack and/or stroke in anamnesis with symptomatic hypotensive episodes are associated with lower daily systolic BP variability (14.3 mm Hg) in comparison with patients without symptomatic hypotensive episodes (16.3 mm Hg). If there were stroke or myocardial infarction in anamnesis, patients with symptomatic hypotensive episodes have higher daily systolic BP variability (18.0 mm Hg) than without hypotensive episodes (14.5 mm Hg). Symptomatic hypotensive episodes are not unidirectionally associated with the variability of blood pressure, the character of the relationship is associated with the presence of heart attack and/or stroke diseases in anamnesis. FUNDunding Acknowledgement Type of funding sources: None.


2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Jing Ye ◽  
Yuan Wang ◽  
Zhen Wang ◽  
Ling Liu ◽  
Zicong Yang ◽  
...  

Background. The interleukin-12 (IL-12) family consists of four members, namely, IL-12, IL-23, IL-27, and IL-35. The aim of this study was to examine the expression of circulating IL-12, IL-23, IL-27, and IL-35 in hypertensive patients. Methods. Blood samples were collected from hypertensive patients and nonhypertensive (control) subjects, and protein multifactorial monitor kits were used to measure the plasma IL-12, IL-23, IL-27, and IL-35 levels in each sample. In addition, all enrolled subjects underwent ambulatory blood pressure monitoring (ABPM) and vascular stiffness. Results. Hypertensive patients exhibited higher IL-12, IL-23, and IL-27 levels and lower IL-35 levels than control subjects; IL-12, IL-23, and IL-27 levels were positively correlated with both systolic blood pressure (SBP) and diastolic blood pressure (DBP), while IL-35 levels were negatively correlated with SBP and DBP. IL-12, IL-23, and IL-27 levels gradually increased in patients with grade I, II, and III hypertension, while IL-35 levels gradually reduced. According to the ABPM results, hypertensive patients were divided into the dipper and nondipper hypertension groups; IL-12, IL-23, IL-27, and IL-35 levels showed no differences between the two groups, but IL-12, IL-23, and IL-27 levels in both groups increased compared with those in the control group, while IL-35 levels decreased. Additionally, the expression of these IL-12 family members was influenced by many clinical factors and was independently associated with the occurrence of carotid atherosclerotic plaques. Conclusions. The changes in IL-12, IL-23, IL-27, and IL-35 levels were not associated with the presence of the nondipper type but were closely associated with the development of carotid atherosclerotic plaque in hypertensive patients.


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