scholarly journals Assessment of Peripheral Neuropathy Using Measurement of the Current Perception Threshold with the Neurometer® in Patients with Type 2 Diabetes Mellitus

2005 ◽  
Vol 33 (4) ◽  
pp. 442-453 ◽  
Author(s):  
R Matsutomo ◽  
K Takebayashi ◽  
Y Aso

Measurement of current perception threshold (CPT) using the Neurometer® at 2000, 250 and 5 Hz assesses function in three different nerve fibre types. This method was used to investigate peripheral neuropathy in 116 patients with type 2 diabetes mellitus and 38 healthy controls. The CPT at 2000 Hz was significantly higher in diabetic patients than in controls, and showed a significant negative correlation with motor and sensory nerve conduction velocities. At 250 Hz, CPT showed a significant positive correlation with the vibration perception threshold. At 5 Hz, the change in systolic blood pressure in the Schellong test in patients with hypoaesthesia tended to be less than in those with normal sensation or hyperaesthesia. Significantly higher CPT values were obtained in patients with proliferative diabetic retinopathy and macroalbuminuria. These data suggest that CPT is useful in detecting abnormalities of myelinated as opposed to unmyelinated nerve fibres in patients with type 2 diabetes.

Author(s):  
Sonali Das Pradhan ◽  
Sumana Panja ◽  
Shiuli Roy ◽  
Saktipada Pradhan ◽  
Kaushik Samajdar

Background: Type 2 diabetic patients have a higher prevalence of thyroid disorders, particularly hypothyroidism.  Peripheral neuropathy is a common and disabling complication of diabetes mellitus. Peripheral nervous system involvement in hypothyroidism is also a well-documented fact. Nerve conduction studies are generally considered to be the most sensitive and reproducible in the assessment of peripheral neuropathies. This study helped to determine the prevalence of peripheral neuropathy in diabetic hypothyroid patients as well as to compare it in diabetic patients with or without hypothyroidism. It compared the onset latency, amplitude, conduction velocity and F- wave latency of some nerves in type 2 diabetes mellitus patients with or without hypothyroidism.Methods: With RMS, EMG, EP MARK-II, nerve conduction studies are done in 30 cases (type 2 diabetes mellitus patients with hypothyroidism) and 30 controls (type 2 diabetes mellitus patients of diabetes without hypothyroidism) respectively, attending the Diabetic Clinic and Biochemistry Laboratory of North Bengal Medical College.Results: Data were treated with Unpaired t-Test. The study reveals that type 2 diabetes mellitus patients with hypothyroidism have higher prevalence of peripheral neuropathy. There is statistically significant (p<0.00) decrease in motor nerve conduction study in both right and left median nerves in diabetic patients with hypothyroidism than in diabetic patients without hypothyroidism.Conclusions: All diabetic patients should be screened for early detection of hypothyroidism as type 2 diabetic patients with hypothyroidism have higher prevalence of peripheral neuropathy. The nerve conduction study remains the most reliable, accurate, and sensitive method to evaluate peripheral nerve function.


2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Adina Stoian ◽  
Claudia Bănescu ◽  
Rodica Ioana Bălaşa ◽  
Anca Moţăţăianu ◽  
Mircea Stoian ◽  
...  

Background and Aims. Diabetic neuropathy is a frequent complication of type 2 diabetes mellitus (T2DM). Genetic susceptibility and oxidative stress may play a role in the appearance of T2DM and diabetic neuropathy. We investigated the relation between polymorphism in genes related to oxidative stress such asGSTM1,GSTT1, andGSTP1and the presence of T2DM and diabetic neuropathy (DN).Methods. Samples were collected from 84 patients with T2DM (42 patients with DN and 42 patients without DN) and 98 healthy controls and genotyped by using polymerase chain reaction and restriction fragment length polymorphism method.Results.GSTP1Ile105Val polymorphism was associated with the risk of developing T2DM (p=0.05) but not with the risk of developing DN in diabetic cases.GSTM1andGSTT1gene polymorphisms were associated with neither the risk of developing T2DM nor the risk of DN occurrence in diabetic patients. No association was observed between the patients with T2DM and DSPN (diabetic sensorimotor peripheral neuropathy) and T2DM without DSPN regarding investigated polymorphism.Conclusion. Our data suggest thatGSTP1gene polymorphisms may contribute to the development of T2DM in Romanian population.GSTM1,GSTT1, andGSTP1gene polymorphisms are not associated with susceptibility of developing diabetic neuropathy in T2DM patients.


2016 ◽  
Vol 23 (2) ◽  
pp. 159-168 ◽  
Author(s):  
Farah N. Abass ◽  
Moshtak Abdul-Atheem ◽  
Hanan F. Aswad

AbstractBackground and aims: This study aims to evaluate the electroencephalographic and nerve conduction changes in type 2 diabetes mellitus (T2DM) patients with and without peripheral neuropathy (DPN) and to investigate the relationship with other variables such as age, gender, duration of the diabetes and the degree of metabolic control.Materials and methods: This was a cross-sectional study, including 100 patients with T2DM and 100 control subjects, aged 34 to 77 years. All patients enrolled in the study were subjected to full assessment, including: history, biochemical and electrophysiological tests.Results: The study found that patients with diabetic peripheral neuropathy (DPN) in comparison to patients without DPN and control subjects were older, had longer duration of diabetes and poorer glycemic control reflected by fasting blood glucose and glycated hemoglobin. The electrophysiological findings showed that patients with DPN have significant differences in nerve conduction study (NCS) parameters when compared to patients without DPN and control subjects in the form of axonal degeneration and demyelination. They also had abnormalities of the electroencephalogram (EEG) which are correlated with nerve conduction study severity.Conclusion: Routine NCS is an important method for evaluating DPN. Investigating sensory nerves of lower limbs is helpful in discovering the early stages of DPN when other tested nerves are normal. The F-wave can be used as a sensitive indicator for the early diagnosis of DPN and it can help to detect the subclinical lesions. EEG examination in diabetic patients with severe DPN is important in showing the defect in the central nervous system.


2015 ◽  
Vol 85 (3-4) ◽  
pp. 145-155 ◽  
Author(s):  
Marjan Ghane Basiri ◽  
Gity Sotoudeh ◽  
Mahmood Djalali ◽  
Mohammad Reza Eshraghian ◽  
Neda Noorshahi ◽  
...  

Abstract. Background: The aim of this study was to identify dietary patterns associated with general and abdominal obesity in type 2 diabetic patients. Methods: We included 728 patients (35 - 65 years) with type 2 diabetes mellitus in this cross-sectional study. The usual dietary intake of individuals over 1 year was collected using a validated semi-quantitative food frequency questionnaire. Weight, height, and waist circumference were measured according to standard protocol. Results: The two major dietary patterns identified by factor analysis were healthy and unhealthy dietary patterns. After adjustment for potential confounders, subjects in the highest quintile of the healthy dietary pattern scores had a lower odds ratio for the general obesity when compared to the lowest quintile (OR = 0.45, 95 % CI = 0.26 - 0.79, P for trend = 0.02), while patients in the highest quintile of the unhealthy dietary pattern scores had greater odds for the general obesity (OR = 3.2, 95 % CI = 1.8 - 5.9, P for trend < 0.001). There were no significant associations between major dietary patterns and abdominal obesity, even after adjusting for confounding factors. Conclusion: This study shows that in patients with type 2 diabetes mellitus, a healthy dietary pattern is inversely associated and an unhealthy dietary pattern is directly associated with general obesity.


Author(s):  
Shah Namrata Vinubhai ◽  
Pardeep Agarwal ◽  
Bushra Fiza ◽  
Ramkishan Jat

Background: Serum ferritin is known as an index for body iron stores also as an inflammatory marker and it is influenced by several disease. We were looking for a correlation between HbA1c and S. Ferritin in type 2 DM. Methodology: The present study a total of 150 participants were enrolled of which 100 were confirmed cases of Type 2 Diabetes Mellitus and rest 50 age and sex matched healthy subjects constituted the control group. All were screened for HbA1c, Fasting blood sugar, Post prandial blood sugar and S.Ferritin. Results: A highly significant variation and positive correlation was observed with respect to S.Ferritin and HbA1c levels. Mean S.Ferritin was high in the subgroup with poor glycemic control. Conclusion: The fasting, post prandial sugar levels, HbA1c and S.Ferritin were significantly higher in the diabetic subjects. This study shows a positive correlation between HbA1c and S. Ferritin levels. So we can conclude that in diabetic patients S. Ferritin may serve as an independent marker of poor glycemic and metabolic control. Keywords: Serum ferritin, Type 2 Diabetes Mellitus, HbA1c.


Nutrients ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 183
Author(s):  
Anna Izzo ◽  
Elena Massimino ◽  
Gabriele Riccardi ◽  
Giuseppe Della Pepa

Type 2 diabetes mellitus (T2DM) represents a major health burden for the elderly population, affecting approximately 25% of people over the age of 65 years. This percentage is expected to increase dramatically in the next decades in relation to the increased longevity of the population observed in recent years. Beyond microvascular and macrovascular complications, sarcopenia has been described as a new diabetes complication in the elderly population. Increasing attention has been paid by researchers and clinicians to this age-related condition—characterized by loss of skeletal muscle mass together with the loss of muscle power and function—in individuals with T2DM; this is due to the heavy impact that sarcopenia may have on physical and psychosocial health of diabetic patients, thus affecting their quality of life. The aim of this narrative review is to provide an update on: (1) the risk of sarcopenia in individuals with T2DM, and (2) its association with relevant features of patients with T2DM such as age, gender, body mass index, disease duration, glycemic control, presence of microvascular or macrovascular complications, nutritional status, and glucose-lowering drugs. From a clinical point of view, it is necessary to improve the ability of physicians and dietitians to recognize early sarcopenia and its risk factors in patients with T2DM in order to make appropriate therapeutic approaches able to prevent and treat this condition.


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