scholarly journals EVALUATION OF INTRARENAL RESISTIVE INDEX BY DUPLEX COLOR DOPPLER ULTRASONOGRAPHY IN PATIENTS WITH DIABETIC NEPHROPATHY – COMPARISON BETWEEN HEALTHY ADULT CONTROL SUBJECTS

Author(s):  
MSI Tipu Chowdhury ◽  
Sadia Sultana ◽  
Md. Fakhrul Islam Khaled ◽  
Khaled Md. Iqbal ◽  
Sharmin Easmin

Background: Renal Doppler Ultrasonography (USG) has become a useful adjunct to gray scale sonography in the evaluation of renal function in various pathophysiological conditions like diabetic nephropathy. We can diagnose diabetic nephropathy by serum creatinine level and creatinine clearance rate. But early stage diagnosis of diabetic nephropathy is not always possible. In this study we have focused on resistive index of interlobar arteries of kidney to see changes of renal parenchyma for early stage diagnosis of diabetic nephropathy. Objectives: To observe the difference between values of intrarenal resistive  index measured by duplex color Doppler USG in type 2 diabetic  patients having diabetic nephropathy and in healthy adult control subjects. Materials and methods: This cross sectional observational study was conducted in the Department of Radiology and Imaging, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh. 65 diabetic nephropathy patients were taken as study group and 65 healthy subjects were included as healthy control subjects. Duplex Color Doppler Ultrasonography of interlobar artery was carried out in both groups to measure the peak systolic velocity, the end diastolic velocity and arterial Resistive Index. Results: The Resistive Index of interlobar artery of left kidney in control group was 0.58±0.08 and the mean RI of interlobar artery of left kidney in diabetic nephropathy patients was 0.74±0.53. The difference of Resistive index of interlobar artery of left kidney in the two groups were statistically significant and the RI of right kidney of control & that of case groups were 0.60±0.09 and 0.76±0.03 respectively. In between control and case groups the RI of right kidney were statistically significant. So, resistive index of interlobar artery was increased in type 2 diabetic nrphropathy patients compared to control group. Conclusion: It can be concluded in present study that resistive index remains significantly higher in patients with diabetic nephropathy than in controls. Thus Duplex Doppler ultrasonography allows the rapid, noninvasive evaluation of the intrarenal vasculature and can be used as an easily available parameter of the evolution and a predictor in patients with clinical diabetic nephropathy. Keywords: Doppler Ultrasonography, Intrarenal Resistive Index, Diabetic Nephropathy

2013 ◽  
Vol 34 (2) ◽  
pp. 113-120 ◽  
Author(s):  
Ihn Suk Lee ◽  
Ju Hee Lee ◽  
Hyun Jin Kim ◽  
Jae Min Lee ◽  
Seong Kyu Lee ◽  
...  

BACKGROUND: The identification and characterization of the gene, ERRFI1, in diabetes has not been reported. In this study, we evaluated the relationship between ERRFI1 polymorphism and characteristics of type 2 diabetes mellitus (T2DM) in Korea.SUBJECTS AND METHODS: We conduct a case-control study involving T2DM patients (n=342) and controls (n=473).RESULTS: A novel single nucleotide ERRFI1 gene polymorphism at +807(T/G) was found. G genotype frequency was 40.1% in the diabetic group and 42.7% in the control group; the difference was not significant (p=0.45). In the diabetic group, the urine albumin to creatinine ratio (ACR) was lower in the G genotype than in the T genotype (P=0.004). In males with T2DM, those with the G genotype displayed lower systolic blood pressure (P=0.01) and higher glomerular filtration rate (P=0.048) compare to those with the T genotype. In females with T2DM, urine ACR was low in those with the G genotype than in those with the T genotype (P=0.02). In the diabetic group, patients who harboring T allele had a 1.81 times higher risk of diabetic nephropathy than the G allele (95% CI 1.11–2.96, P=0.02). In females with T2DM, patients who harboring T allele had a 2.12 times higher risk of diabetic nephropathy (95% CI 1.07–4.1, P=0.03).CONCLUSIONS: We identify new loci associated with glycemic traits in diabetes and this finding indicates the potential of ERRFI1 as a novel therapeutic target of diabetic nephropathy.


2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Tengkai Wang ◽  
Qian Wang ◽  
Zhimei Wang ◽  
Zuomin Xiao ◽  
Lunqin Liu

Diabetic nephropathy (DN) is a major cause of end-stage kidney disease, and therefore early diagnosis and intervention may help reverse renal damage. One hundred and sixty-eight patients with T2DM and 56 healthy volunteers (control group) were enrolled at Shandong University Qilu Hospital between April 2010 and October 2012. All subjects underwent blood sampling for sera homocysteine (Hcy) and cystatin C (Cys C) assays and a urine microalbumin test. The patients were divided into three groups according to the urine microalbumin excretion rate (UMAER): the simple DM group (SDM group, n=51), the early-stage DN group (EDN group, n=60), and the clinical DN and renal failure group (CDN group, n=57). Correlation analysis was performed to examine the association between sera Hcy and Cys C levels with UMAER. Our findings showed that sera Hcy level, Cys C level, and UMAER increased significantly in the SDM group (P<0.05, P<0.01), the EDN group (P<0.01), and the CDN group (P<0.01) as compared with the control group. These three biochemical markers also increased significantly with DN progression (P<0.01). Correlation analysis showed that sera Hcy and Cys C levels were positively correlated with UMAER (r=0.702, P<0.01; r=0.873, P<0.01). In conclusion, our results showed that sera Hcy and Cys C levels increased consistently with the development and progression of DN as indicated by UMAER. Sera Hcy and Cys C are sensitive biomarkers for the detection of early-stage DN and monitoring its progression.


2020 ◽  
Vol 20 (4) ◽  
pp. 584-590 ◽  
Author(s):  
Shima Fathi ◽  
Shiva Borzouei ◽  
Mohammad Taghi Goodarzi ◽  
Jalal Poorolajal ◽  
Fatemeh Ahmadi-Motamayel

Background: Diabetes Mellitus (DM) is a progressive metabolic disorder. Objective: The aim of this study was to investigate the relationship between antioxidant and oxidative stress markers in the saliva of patients with type 2 DM and a healthy control group. Methods: In this study, 20 patients with diabetes and 20 healthy individuals were evaluated. Salivary antioxidants markers consisted of total antioxidant capacity (TAC), uric acid (UA), peroxidase and catalase. Oxidative stress markers included total oxidant status (TOS), malondealdehyde (MDA) and total thiol (SH). Sialochemical analysis was performed with spectrophotometric assay. All the statistical analyses were conducted using STATA software. Results: TAC decreased significantly in patients with diabetes. Although salivary UA and peroxidase were lower in patients with diabetes compared to the control group, the difference was not significant. Salivary catalase in patients with diabetes was significantly lower than that in the control group. MDA and TOS exhibited significantly higher levels in type 2 DM. SH levels were slightly higher in DM. Conclusions: According to the results of the present study, there were some changes in the salivary levels of some antioxidants and oxidative stress markers in patients with type 2 DM and could be measured as an indicator of serum changes..


QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Magdy EL Sharkawy ◽  
Samir K Abdul-Hamid ◽  
Tarek T Elmelegy ◽  
Mohammed F Adawy

Abstract Background Diabetes mellitus (DM) is the most frequent cause of chronic kidney failure in both developed and developing countries. Diabetic nephropathy, is a clinical syndrome characterized by albuminuria (&gt;300 mg/day) with permanent and irreversible decrease in glomerular filtration rate (GFR). Aim of the Work To study the role of urinary TNF-α and urine KIM-1 in type 2 diabetic patients as predictors of DN comparative with albuminuria. Patients and Methods This is a cross-sectional study which include 90 type-2 diabetic patients and 30 controls selected from the outpatient clinic of Assiut University hospitals. All patients gave an informed consent and approval for the study was obtained from the IRB committee of the Assiut Medical Faculty. The recruited patients were divided into three groups: Normo-albuminuria Group (A) (n = 30): UACR less than 30 mg/gm, Microalbuminuria Group (B) (n = 30): UACR between 30-299 mg/gm and Macro-albuminuria Group (C) (n = 30): UACR equal or more than 300 mg/gm. Assess Urinary TNF-α and urine KIM-1 in comparision with albuminuria. Results Urinary KIM-1 and urinary TNF-α are statically significant with albuminuria in patients in the early stage of diabetic nephropathy (eGFR _60 mL/min/1.73 m2).Also there are statically significance between patients with macroalbuminuria than microalbuminuria. Conclusion The results of this study recommend the use of KIM-1 and TNF-α as good predictors of early detection of development of diabetic nephropathy.


2018 ◽  
Vol 6 (01) ◽  
pp. 50-55 ◽  
Author(s):  
Xin Zhao ◽  
Xiao-Mei Zhang ◽  
Ning Yuan ◽  
Xiao-Feng Yu ◽  
Li-Nong Ji

Abstract Objective To identify correlations of bone mineral density (BMD) and bone metabolism indices with the urine albumin to creatinine ratio (ACR) as an indicator of nephropathy in Chinese patients with type 2 diabetes (T2D). Methods In this retrospective analysis, 297 patients with T2D were divided into 3 groups according to the urine ACR. Patients’ data were analyzed to identify associations of general conditions, blood glucose level, lipid levels, and uric acid level with BMD and bone metabolism indices. Results BMD at every location tested (femoral neck, trochanter, inside hip, Ward’s triangle, total hip, and lumbar vertebrae) was negatively correlated with the urine ACR (all p<0.05). Osteocalcin, beta-C-terminal telopeptide (β-CTX), and procollagen type 1 N- peptide (P1NP) were positively correlated with urine ACR (all p<0.05). Finally, 25-hydroxyvitamin D [25(OH)D] was negatively correlated with urine ACR (p<0.05). Multiple regression analysis with adjustment for age, body mass index, disease duration, and other clinical measurements revealed no significant correlation between urine ACR and BMD measurements or β-CTX (p>0.05). However, significant correlations remained between urine ACR and osteocalcin, P1NP, and 25(OH)D (p<0.05). The same results were obtained for postmenopausal women specifically, with the exception of a significant correlation between the ACR and β-CTX (p<0.05). Conclusion In the early stage of diabetic nephropathy, BMD changes and bone transformation acceleration may occur, and the acceleration of bone transformation may occur before the change in BMD. Therefore, it is important to monitor bone metabolism indices in the early stage of diabetic nephropathy in T2D patients.


2016 ◽  
Vol 41 (3) ◽  
pp. 125-130
Author(s):  
Mahbuba Shirin ◽  
Mofazzal Sharif ◽  
Ayeshna Gurung ◽  
Anindita Datta

Diabetes mellitus is one of the systemic diseases affecting the kidneys. Diabetic nephropathy is a serious microvascular complication of diabetes mellitus. It is the most important cause of death in type I diabetic patients, of whom 30%-40% eventually develop end-stage renal failure and 40% of type II diabetics are at risk of developing diabetic nephropathy. So, diagnosis of diabetic nephropathy is paramount for the survivability of the diabetic patients not only because of the consequences of renal progression but also because of the strong association with the risk of developing cardiovascular disease. A total number of 53 subjects were enrolled in this present cross sectional study in the department of Radiology and Imaging, Bangabandhu Sheikh Mujib Medical University (BSMMU) in collaboration of Nephrology and Medicine of the same institution during two years (2011-13) aim to evaluate the diagnostic usefulness of renal resistive index (RI) by duplex Doppler ultrasonography for detection of renal dysfunction in diabetic patients. Clinically diagnosed diabetic patients having diabetic nephropathy referred to the department of Radiology and Imaging in BSMMU for ultrasonography of Kidneys, Ureters and Bladder (KUB) region or whole abdomen were selected as sample. Biochemical reports (Serum creatinine and Urinary albumin) and the RI value of intrarenal artery were correlated and analyzed. Only those patients biochemically were diagnosed as having diabetic nephropathy was included. Those with incomplete data, hydro nephrosis and renal calculus were excluded. Both the kidneys were visualized by commercially available real time scanner (GE Voluson) equipped with a curvilinear transducer operating at 3.5 MHz First Gray scale ultrasonography was done followed by Color Doppler of intra renal artery and then RI was measured. Majority (45.3%) patients were in 6th decade with the mean age was of 52.66±7.4 years and ranging from 38 to 65 years in patients. Male was found to be 54.7% of diabetic patients with male to female ratio 1.2:1. Resistive index of (? 0.7) was found in 73.6% patients with diabetes with the mean resistive index of 0.71±0.04. Positive correction between resistive index with serum creatinine (r=0.581, p<0.01) and albuminuria (r=0.725, p<0.01) were observed. It can be concluded that Resistive Index measured by duplex Doppler ultrasonography is useful diagnostic modality for detection of renal dysfunction in diabetic nephropathy patients. Resistive Index has value in identifying diabetic patients who are developing nephropathy and can be used as an additional diagnostic tool. Also it is well correlated with Serum Creatinine and Albuminuria which are the biochemical parameters to diagnose diabetic nephropathy.


2008 ◽  
Vol 27 (3) ◽  
pp. 376-382 ◽  
Author(s):  
Tatjana Cvetković ◽  
Predrag Vlahović ◽  
Vidosava đorđević ◽  
Lilika Zvezdanović ◽  
Dušica Pavlović ◽  
...  

The Significance of Urinary Markers in the Evaluation of Diabetic Nephropathy Oxidative stress is considered to be a unifying link between diabetes mellitus (DM) and its complications, including nephropathy (DN). The aim of this study was to determine the parameters of oxidative injury of lipids and proteins as well as the activity of ectoenzymes in the urine of DN patients. The study included 40 individuals: 10 patients with type 2 diabetes mellitus and microalbuminuria (DMT2-MIA), 10 type 2 diabetic patients with macroalbuminuria (DMT2-MAA), 10 patients with type 1 diabetes and microalbuminuria (DMT1-MIA) and 10 age- and sex-matched healthy subjects (control). In the urine we determined TBA reactive substances (TBARS), reactive carbonyl groups (RCG), and the activity of ectoenzymes N-acetyl-β-d-glucosaminidase (NAG), plasma cell differentiation antigen (PC-1), aminopeptidase N (APN) and dipeptidyl peptidase IV (DPP IV). A higher concentration of TBARS in the urine was found in DMT2-MIA and DMT1-MIA, compared to the control group (p<0.001 and P<0.05). The urine concentration of RCD shows similar results with a significant elevation in the groups with DMT2-MAA and DMT1-MIA, compared to the DMT2-MIA (p<0.001) and control group (p<0.001). Activities of NAG, APN and DPPIV were significantly higher in the urine of DMT2-MAA, compared to the control (p<0.01). The activity of PC-1 was slightly increased in that group, but not significantly. In conclusion, the level of oxidative stress markers and activities of brush border ectoenzymes in the urine may be a useful non-invasive and easily repeatable test in DN.


2020 ◽  
Vol 20 (2) ◽  
pp. 833-840
Author(s):  
Erhan Onalan ◽  
Yusuf Doğan ◽  
Ebru Onalan ◽  
Nevzat Gozel ◽  
Ilay Buran ◽  
...  

Backround: Elabela (ELA) is a hormone that is secreted at high levels in the kidneys of a healthy adult. This study aims to investigate whether serum ELA levels of patients with Type 2 Diabetes vary with the severity of renal damage. Methods: Our study included 50 healthy control subjects and 100 diabetic patients, who were categorized into groups based on urine albumin/creatinine ratios (ACR). Patients included in the study were assigned to four groups: Group 1 (healthy control), Group 2 (ACR<29mg/g), Group 3 (ACR=30-299 mg/g), and Group 4 (ACR>300 mg/g normal or high serum creatinine). Physical examination findings, demographic characteristics of the study group were recorded, and serum ELA levels and other laboratory parameters were assessed using appropriate methods. Results: The results of the study indicated that ELA levels determined in healthy individuals gradually decreased through stages of normal albuminuria, microalbuminuria, and macroalbuminuria. Moreover, ELA had a significant negative corre- lation with LDL-C (r=-0.201, p=0.014), glucose (r=-0.437, P<0.001), retinopathy (r=-0.222, P=0.006), serum BUN (r=- 0.161, P=0.049), and a positive correlation with eGFR (r=0.250, P=0.002). Conclusions: The fact that ELA levels are higher in healthy individuals compared to diabetic patients without microalbu- minuria, and higher in diabetic patients without microalbuminuria compared to patients with advanced albuminuria and kidney damage, suggests that the ELA level can be an important clinical prognostic variable and even a promising agent for the treatment of diabetic nephropathy patients. Keywords: Elabela, diabetes, diabetic kidney disease, albuminuria.


2021 ◽  
Vol 12 ◽  
Author(s):  
Fuyao Yu ◽  
Bing He ◽  
Li Chen ◽  
Fengzhe Wang ◽  
Haidong Zhu ◽  
...  

ObjectiveSkeletal muscle fat content is one of the important contributors to insulin resistance (IR), but its diagnostic value remains unknown, especially in the Chinese population. Therefore, we aimed to analyze differences in skeletal muscle fat content and various functional MRI parameters between diabetic patients and control subjects to evaluate the early indicators of diabetes. In addition, we aimed to investigate the associations among skeletal muscle fat content, magnetic resonance parameters of skeletal muscle function and IR in type 2 diabetic patients and control subjects.MethodsWe enrolled 12 patients (age:29-38 years, BMI: 25-28 kg/m2) who were newly diagnosed with type 2 diabetes (intravenous plasma glucose concentration≥11.1mmol/l or fasting blood glucose concentration≥7.0mmol/l) together with 12 control subjects as the control group (age: 26-33 years, BMI: 21-28 kg/m2). Fasting blood samples were collected for the measurement of glucose, insulin, 2-hour postprandial blood glucose (PBG2h), and glycated hemoglobin (HbAlc). The magnetic resonance scan of the lower extremity and abdomen was performed, which can evaluate visceral fat content as well as skeletal muscle metabolism and function through transverse relaxation times (T2), fraction anisotropy (FA) and apparent diffusion coefficient (ADC) values.ResultsWe found a significant difference in intermuscular fat (IMAT) between the diabetes group and the control group (p&lt;0.05), the ratio of IMAT in thigh muscles of diabetes group was higher than that of control group. In the entire cohort, IMAT was positively correlated with HOMA-IR, HbAlc, T2, and FA, and the T2 value was correlated with HOMA-IR, PBG2h and HbAlc (p&lt;0.05). There were also significant differences in T2 and FA values between the diabetes group and the control group (p&lt;0.05). According to the ROC, assuming 8.85% of IMAT as the cutoff value, the sensitivity and specificity of IMAT were 100% and 83.3%, respectively. Assuming 39.25ms as the cutoff value, the sensitivity and specificity of T2 value were 66.7% and 91.7%, respectively. All the statistical analyses were adjusted for age, BMI and visceral fat content.ConclusionDeposition of IMAT in skeletal muscles seems to be an important determinant for IR in type 2 diabetes. The skeletal muscle IMAT value greater than 8.85% and the T2 value greater than 39.25ms are suggestive of IR.


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