Relationship Between Glycated Hemoglobin and Vibration Perception Threshold in Diabetic Peripheral Neuropathy

2019 ◽  
Vol 19 (2) ◽  
pp. 120-124 ◽  
Author(s):  
Arun G. Maiya ◽  
Anche Parameshwar ◽  
Manjunath Hande ◽  
Vinayak Nandalike

Foot ulcers, infections, and deformity are some of the major sources of mortality and morbidity among the diabetic population. The relationship between glycated hemoglobin (HbA1c) and diabetic peripheral neuropathy (DPN) has been well established. There is a dearth of literature on the relationship between vibration perception threshold (VPT) and HbA1c values. So, the objective of the study was to determine the strength of linear relationship between HbA1c levels and vibration perception threshold in DPN. This cross-sectional study was conducted at Kasturba Hospital, Manipal, and diabetic foot screening camps held at various parts of Udupi district. Ethical approval was obtained from the Institutional Ethics Committee, Kasturba Hospital, Manipal (IEC:281/2017). A total of 534 participants ranging from 30 to 70 years of age and were diagnosed with type 2 diabetes mellitus on medications were included in the study. Neuropathy assessment consisting of monofilament and vibration perception threshold was done using Neurotouch beta version (Yostra Labs, Bengaluru, India). HbA1c measurement was done using turbidimetric inhibition immunoassay technique (Roche Diagnostics, Mannheim, Germany). Pearson correlation coefficient showed a moderate to good correlation between HbA1c and VPT ( r = .0.753, P < .001). Linear regression result has shown a significant relationship of VPT with HbA1c (4.033 [95% confidence interval = 3.67-4.39]). The present study has concluded that there is strong relationship between HbA1c values and VPT and could be a predictor for complications in the foot following DPN.

2021 ◽  
Author(s):  
pijun yan ◽  
Qian Tang ◽  
Yuru Wu ◽  
Qin Wan ◽  
Zhihong Zhang ◽  
...  

Abstract Background: Studies that investigated the association between serum albumin and the risk of diabetic peripheral neuropathy (DPN) have reported inconsistent results. The objective of this study was to explore the relationship between serum albumin and DPN in Chinese patients with type 2 diabetes mellitus (T2DM). Methods: Serum albumin levels were measured in 1465 patients with T2DM aged 16–89 years. The relationships between serum albumin and the prevalence of DPN and other parameters were analyzed. Results: Patients in the highest quartile of serum albumin had lower prevalence of DPN compared with subjects in the lowest quartile (P <0.01). Serum albumin was positively associated with DBP, total cholesterol, triglycerides, high-density lipoprotein cholesterol, uric acid, and negatively with glycated hemoglobin A1c, γ-glutamyltransferase, cystatin C, serum creatinine, albumin- to-creatinine ratio, neutrophil-to-lymphocyte ratio, vibration perception thresholds (VPT), and prevalence of DPN after adjustments for age, gender, body mass index, and diabetic duration ( P<0.01 or P<0.05). There was an 50.1% decreased risk of DPN (95% confidence interval [CI] 0.404-0.544; P <0.01) per 1 SD increase of serum and 62.7% decreased risk of DPN in quartile 4 of serum albumin versus quartiles 1, 2, and 3 (95% CI 0.195-0.714; P=0.003) after multivariate adjustment. Serum albumin could predict DPN with 65.88% sensitivity and 66.7% specificity for the best cutoff value of 39.95 g/L. Conclusions: These findings suggest that lower serum albumin might be associated with the presence of DPN via increased oxidative stress, inflammation, and vasculopathy. Further larger and prospective studies are needed to confirm our findings.


2021 ◽  
Vol 10 (1) ◽  
pp. 20-25
Author(s):  
Sujan Shrestha ◽  
Mamen Prasad Gorhaly ◽  
Manil Ratna Bajracharya

Background Diabetic peripheral neuropathy (DPN) is a significant independent risk factor for diabetic foot, and an effective screening instrument is required to diagnose DPN early to prevent future ulceration and amputation. This study aims to determine the diagnostic accuracy of monofilament test to detect diabetic peripheral neuropathy. Methods This cross-sectional study was conducted in National Academy of Medical Sciences, Bir hospital, Mahabouddha, Kathmandu from February 2016 to January 2017. A total of 96 diabetic patients attending inpatient and outpatient Department were selected. Diabetic peripheral neuropathy was assessed by measurement of loss of protective sensation (LOPS) by monofilament test and compared with vibration perception threshold by standard biothesiometer. The sensitivity, specificity, positive predictive value and negative predictive value of monofilament test were calculated. Results The prevalence of diabetic peripheral neuropathy was 26%. The sensitivity, specificity, positive predictive value and negative predictive value of monofilament test were found to be 92.0%, 95.8%, 88.5% and 97.1% respectively. There was strong association between LOPS by monofilament and vibration perception threshold by biothesiometer. Conclusion This study showed a strong diagnostic accuracy of monofilament test to detect DPN when compared with biothesiometer. As monofilament test is a cheap, easily available, and portable, it can be used in the periphery where biothesiometer is not available.  


2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Pijun Yan ◽  
Qin Wan ◽  
Zhihong Zhang ◽  
Yong Xu ◽  
Ying Miao ◽  
...  

Cardiovascular disease which is associated with cardiac dysfunction, usually measured with circulating levels of B-type natriuretic peptide (BNP), has been associated with incidence and progression of diabetic peripheral neuropathy (DPN). The potential relationship of circulating physiological levels of BNP with DPN, however, has not been reported. Circulating levels of BNP were measured in 258 patients with type 2 diabetes mellitus (T2DM), and participants were divided into a DPN group ( n = 61 ) and no DPN group ( n = 197 ). The relationship between circulating physiological levels of BNP and DPN and other parameters was analyzed. Circulating levels of BNP were significantly elevated in T2DM patients with DPN compared to those without ( P = 0.001 ). Circulating levels of BNP were significantly and positively associated with systolic blood pressure ( P = 0.035 ), neutrophil-to-lymphocyte ratio ( P = 0.007 ), creatinine ( P = 0.030 ), vibration perception threshold values ( P = 0.021 ), and the prevalence of diabetic foot ulceration ( P = 0.039 ), peripheral arterial disease ( P = 0.013 ), DPN ( P = 0.032 ), and diabetic nephropathy ( P = 0.020 ) and negatively with lymphocyte count ( P = 0.003 ) and ankle-brachial index ( P = 0.038 ), irrespective of age, sex, and body mass index. Moreover, circulating levels of BNP was an independent decisive factor for the presence of DPN after multivariate adjustment (odds ratio, 1.044; 95% confidence interval, 1.006-1.084; P = 0.024 ). Additionally, the higher quartiles of circulating BNP were related significantly to an increased risk of DPN compared to the lowest quartile ( P = 0.003 ). Last but most importantly, the analysis of receiver operating characteristic curves revealed that the best cutoff value for circulating levels of BNP to predict DPN was 15.18 pg/mL (sensitivity 78.7% and specificity 48.2%). These findings suggest that high circulating physiological levels of BNP may be associated with the development of DPN and may be a potential biomarker for DPN in patients with T2DM.


Diabetes Care ◽  
2010 ◽  
Vol 33 (12) ◽  
pp. 2635-2641 ◽  
Author(s):  
C. L. Martin ◽  
B. H. Waberski ◽  
R. Pop-Busui ◽  
P. A. Cleary ◽  
S. Catton ◽  
...  

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Jun Yang ◽  
Pi-jun Yan ◽  
Qin Wan ◽  
Hua Li

Objective. To investigate the relationship between hemoglobin levels and diabetic peripheral neuropathy (DPN) in type 2 diabetes mellitus (T2DM). Methods. 1511 patients with T2DM were included in the study. DPN was diagnosed based on symptoms, signs, and laboratory tests. Hemoglobin was defined as both a continuous variable and a quartile category variable. We compared patient characteristics between the no diabetic peripheral neuropathy (NDPN) and DPN groups. Logistic regression was conducted to investigate the association of DPN with hemoglobin in all T2DM patients. Linear regression was also performed to investigate the impact of hemoglobin on the vibrating perception threshold (VPT). Results. Compared with the NDPN group, hemoglobin level in the DPN group was significantly lower (118.54 ± 16.91 versus 131.62 ± 18.32 g/L, P<0.01). The prevalence of DPN increased by 50.1% (95% CI: 42.2–57.0%; P<0.001) per standard deviation decrease in hemoglobin. Compared to the highest quartile of hemoglobin, the lower quartiles were associated with a significantly increased risk of DPN in the entire T2DM population (all P<0.01). A per unit decrease in hemoglobin leads to a 0.12 (95% CI: 0.07–0.168) unit increase in VPT after adjustment for possible confounders (P<0.001). Conclusions. Lower hemoglobin levels were associated with increased prevalence of DPN and higher VPT.


2020 ◽  
Vol 9 (8) ◽  
pp. 858-863
Author(s):  
Shufei Zang ◽  
Lei Shi ◽  
Jinying Zhao ◽  
Min Yang ◽  
Jun Liu ◽  
...  

The aim of our study was to explore the diagnostic value of prealbumin to fibrinogen ratio (PFR) for predicting prognosis with the optimal cut-off value in diabetic peripheral neuropathy (DPN) patients. A total of 568 type 2 diabetes mellitus (T2DM) patients were enrolled in this study. The values including Toronto clinical neuropathy score (TCNS), nerve conduction velocity (NCV), vibration perception threshold (VPT), blood cells count, biochemical parameters, fibrinogen and PFR were recorded. The patients were divided into tertiles based on admission PFR value. First, clinical parameters were compared among the groups. Secondly, a logistic regression and ROC analysis were performed as the statistical model. The percentage of DPN, TCNS and VPT were significantly higher in the lowest PFR tertile than in the middle PFR tertile and the highest PFR tertile (P < 0.01–0.001). NCV was significantly lower in lowest PFR tertile than in the middle PFR tertile and the highest PFR tertile (P < 0.01–0.001). The Spearman correlation analysis showed that PFR was negatively correlated with TCNS and VPT (P < 0.001), while PFR was positively correlated with median motor NCV (P < 0.001), peroneal motor NCV (P < 0.001), median sensory NCV (P < 0.001), and peroneal sensory NCV (P < 0.001). After adjusting these potentially related factors, PFR was independently related to DPN (P = 0.007). The area under ROC curve was 0.627. This study finds the first evidence to suggest PFR may be the key component associated with DPN in T2DM, while PFR might underlie the pathophysiologic features of DPN.


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