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Current Pain and Headache Reports Aug 2022Painful diabetic neuropathy (PDN) manifests with pain typically in the distal lower extremities and can be challenging to treat. The authors appraised the literature for... (Review)
Review
PURPOSE OF REVIEW
Painful diabetic neuropathy (PDN) manifests with pain typically in the distal lower extremities and can be challenging to treat. The authors appraised the literature for evidence on conservative, pharmacological, and neuromodulation treatment options for PDN.
RECENT FINDINGS
Intensive glycemic control with insulin in patients with type 1 diabetes may be associated with lower odds of distal symmetric polyneuropathy compared to patients who receive conventional insulin therapy. First-line pharmacologic therapy for PDN includes gabapentinoids (pregabalin and gabapentin) and duloxetine. Additional pharmacologic modalities that are approved by the Food and Drug Administration (FDA) but are considered second-line agents include tapentadol and 8% capsaicin patch, although studies have revealed modest treatment effects from these modalities. There is level I evidence on the use of dorsal column spinal cord stimulation (SCS) for treatment of PDN, delivering either a 10-kHz waveform or tonic waveform. In summary, this review provides an overview of treatment options for PDN. Furthermore, it provides updates on the level of evidence for SCS therapy in cases of PDN refractory to conventional medical therapy.
Topics: Diabetes Mellitus; Diabetic Neuropathies; Gabapentin; Humans; Insulins; Pregabalin; Spinal Cord Stimulation
PubMed: 35716275
DOI: 10.1007/s11916-022-01061-7 -
Diabetes/metabolism Research and Reviews Nov 2023To assess the prevalence of diabetic peripheral neuropathy (DPN) and its risk factors in the type 2 diabetes mellitus (T2DM) population.
AIMS
To assess the prevalence of diabetic peripheral neuropathy (DPN) and its risk factors in the type 2 diabetes mellitus (T2DM) population.
METHODS
This cross-sectional study enroled patients with T2DM between July and December 2017 from 24 provinces in China. Diabetic peripheral neuropathy and its severity were assessed by the Toronto clinical scoring system, neuropathy symptoms score (NSS) and neuropathy disability score. The prevalence of DPN and its risk factors were analysed.
RESULTS
A total of 14,908 patients with T2DM were enroled. The prevalence of DPN was 67.6%. Among 10,084 patients with DPN, 4808 (47.7%), 3325 (33.0%), and 1951 (19.3%) had mild, moderate, and severe DPN, respectively. The prevalence of DPN in females was higher than in males (69.0% vs. 66.6%, P = 0.002). The prevalence of DPN increased with age and course of diabetes and decreased with body mass index (BMI) and education level (all P for trend <0.05). The comorbidities and complications in patients with DPN were higher than in those without DPN, including hypertension, myocardial infarction, diabetic retinopathy, and diabetic nephropathy (all P < 0.001). Age, hypertension, duration of diabetes, diabetic retinopathy, diabetic nephropathy, glycated haemoglobin, high-density lipoprotein cholesterol, and lower estimated glomerular filtration rate were positively associated with DPN, while BMI, education level, fasting C-peptide, and uric acid were negatively associated with DPN.
CONCLUSIONS
Among patients with T2DM in China, the prevalence of DPN is high, especially in the elderly, low-income, and undereducated patients.
Topics: Male; Female; Humans; Aged; Diabetes Mellitus, Type 2; Cross-Sectional Studies; Diabetic Neuropathies; Prevalence; Risk Factors; Diabetic Retinopathy; Hypertension; Diabetic Nephropathies
PubMed: 37490047
DOI: 10.1002/dmrr.3702 -
Continuum (Minneapolis, Minn.) Oct 2023This article provides an up-to-date review of the diagnosis and management of the most common neuropathies that occur in patients with diabetes.
OBJECTIVE
This article provides an up-to-date review of the diagnosis and management of the most common neuropathies that occur in patients with diabetes.
LATEST DEVELOPMENTS
The prevalence of diabetes continues to grow worldwide and, as a result, the burden of diabetic neuropathies is also increasing. Most diabetic neuropathies are caused by hyperglycemic effects on small and large fiber nerves, and glycemic control in individuals with type 1 diabetes reduces neuropathy prevalence. However, among people with type 2 diabetes, additional factors, particularly metabolic syndrome components, play a role and should be addressed. Although length-dependent distal symmetric polyneuropathy is the most common form of neuropathy, autonomic syndromes, particularly cardiovascular autonomic neuropathy, are associated with increased mortality, whereas lumbosacral radiculoplexus neuropathy and treatment-induced neuropathy cause substantial morbidity. Recent evidence-based guidelines have updated the recommended treatment options to manage pain associated with distal symmetric polyneuropathy of diabetes.
ESSENTIAL POINTS
Identifying and appropriately diagnosing the neuropathies of diabetes is key to preventing progression. Until better disease-modifying therapies are identified, management remains focused on diabetes and metabolic risk factor control and pain management.
Topics: Humans; Diabetic Neuropathies; Diabetes Mellitus, Type 2; Risk Factors; Polyneuropathies; Pain
PubMed: 37851036
DOI: 10.1212/CON.0000000000001291 -
International Journal of Molecular... Oct 2021The pathogenesis of diabetic neuropathy is complex, and various pathogenic pathways have been proposed. A better understanding of the pathophysiology is warranted for... (Review)
Review
The pathogenesis of diabetic neuropathy is complex, and various pathogenic pathways have been proposed. A better understanding of the pathophysiology is warranted for developing novel therapeutic strategies. Here, we summarize recent evidence from experiments using animal models of type 1 and type 2 diabetes showing that low-grade intraneural inflammation is a facet of diabetic neuropathy. Our experimental data suggest that these mild inflammatory processes are a likely common terminal pathway in diabetic neuropathy associated with the degeneration of intraepidermal nerve fibers. In contrast to earlier reports claiming toxic effects of high-iron content, we found the opposite, i.e., nutritional iron deficiency caused low-grade inflammation and fiber degeneration while in normal or high non-heme iron nutrition no or only extremely mild inflammatory signs were identified in nerve tissue. Obesity and dyslipidemia also appear to trigger mild inflammation of peripheral nerves, associated with neuropathy even in the absence of overt diabetes mellitus. Our finding may be the experimental analog of recent observations identifying systemic proinflammatory activity in human sensorimotor diabetic neuropathy. In a rat model of type 1 diabetes, a mild neuropathy with inflammatory components could be induced by insulin treatment causing an abrupt reduction in HbA1c. This is in line with observations in patients with severe diabetes developing a small fiber neuropathy upon treatment-induced rapid HbA1c reduction. If the inflammatory pathogenesis could be further substantiated by data from human tissues and intervention studies, anti-inflammatory compounds with different modes of action may become candidates for the treatment or prevention of diabetic neuropathy.
Topics: Animals; Diabetes Mellitus, Type 1; Diabetes Mellitus, Type 2; Diabetic Neuropathies; Humans; Inflammation
PubMed: 34639176
DOI: 10.3390/ijms221910835 -
Panminerva Medica Jun 2022According to the International Diabetes Federation, the number of adults (age of 20-79) being diagnosed with diabetes mellitus (DM) have increased from 285 million in...
According to the International Diabetes Federation, the number of adults (age of 20-79) being diagnosed with diabetes mellitus (DM) have increased from 285 million in year 2009 to 463 million in year 2019 which comprises of 95% type 2 DM patient (T2DM). Research have claimed that genetic predisposition could be one of the factors causing T2DM complications. In addition, T2DM complications cause an incremental risk to mortality. Therefore, this article aims to discuss some complications of T2DM in and their genetic association. The complications that are discussed in this article are diabetic nephropathy, diabetes induced cardiovascular disease, diabetic neuropathy, diabetic foot ulcer (DFU) and Alzheimer's disease (AD). According to the information obtained, genes associated with diabetic nephropathy (DN) are gene GABRR1 and ELMO1 that cause injury to glomerular. Replication of genes FRMD3, CARS and MYO16/IRS2 shown to have link with DN. The increase of gene THBS2, NGAL, PIP, TRAF6 polymorphism, ICAM-1 encoded for rs5498 polymorphism and C667T increase susceptibility towards DN in T2DM patient. Genes associated with cardiovascular diseases are adiponectin gene (ACRP30) and apolipoprotein E (APOE) polymorphism gene with ξ2 allele. Haptoglobin (Hp) 1-1 genotype and mitochondria superoxide dismutase 2 (SOD2) plays a role in cardiovascular events. As for genes related to diabetic neuropathy, janus kinase (JAK), mutation of SCN9A and TRPA1 gene and destruction of miRNA contribute to pathogenesis of diabetic neuropathy among T2DM patients. Expression of cytokine IL-6, IL-10, miR-146a are found to cause diabetic neuropathy. Besides, A1a16Va1 gene polymorphism, an oxidative stress influence was found as one of the gene factors. Diabetic retinopathy (DR) is believed to have association with monocyte chemoattractant protein-1 (MCP-1) and insulin-like growth factor 1 (IGF1). Over-expression of gene ENPP1, IL-6 pro-inflammatory cytokine, ARHGAP22's protein rs3844492 polymorphism and TLR4 heterozygous genotype are contributing to significant pathophysiological process causing DR, while research found increases level of UCP1 gene protects retina cells from oxidative stress. DFU is manifested by slowing in re-epithelialization of keratinocyte, persistence wound inflammation and healing impairment. Re-epithelialization disturbance was caused by E2F3 gene, reduction of Tacl gene encoded substance P causing persistence inflammation while expression of MMp-9 polymorphism contributes to healing impairment. A decrease in HIF-1a gene expression leads to increased risk of pathogenesis, while downregulation of TLR2 increases severity of wound in DFU patients. SNPs alleles has been shown to have significant association between the genetic dispositions of T
2 DM and AD. The progression of AD can be due to the change in DNA methylation of CLOCK gene, followed with worsening of AD by APOE4 gene due to dyslipidemia condition in T2DM patients. Insulin resistance is also a factor that contributes to pathogenesis of AD.Topics: Adult; Cardiovascular Diseases; Case-Control Studies; Diabetes Mellitus, Type 2; Diabetic Foot; Diabetic Nephropathies; Diabetic Neuropathies; Diabetic Retinopathy; Genetic Predisposition to Disease; Genotype; Humans; Inflammation; Interleukin-6; NAV1.7 Voltage-Gated Sodium Channel; Polymorphism, Single Nucleotide
PubMed: 34609116
DOI: 10.23736/S0031-0808.21.04285-3 -
Muscle & Nerve Jan 2021Diabetic neuropathies are the most common type of neuropathies seen in clinical practice. These neuropathies can range clinically from asymptomatic to manifesting... (Review)
Review
Diabetic neuropathies are the most common type of neuropathies seen in clinical practice. These neuropathies can range clinically from asymptomatic to manifesting symptoms caused by motor, sensory, and autonomic nerve dysfunction. These neuropathies can affect the peripheral nervous system, pain receptors, cardiovascular, urogenital, and gastrointestinal systems. This monograph presents an overview of the different types of diabetic neuropathies, their presentations, diagnostic tools, and strategies for management.
Topics: Autonomic Nervous System; Autonomic Nervous System Diseases; Cardiovascular System; Diabetes Mellitus; Diabetic Neuropathies; Humans
PubMed: 32589300
DOI: 10.1002/mus.27014 -
Experimental and Clinical Endocrinology... Feb 2023
Topics: Humans; Diabetic Neuropathies; Diabetes Mellitus
PubMed: 36720239
DOI: 10.1055/a-1946-3813 -
Experimental and Clinical Endocrinology... Aug 2021
Topics: Adult; Comorbidity; Diabetic Neuropathies; Diagnosis, Differential; Diagnostic Techniques, Endocrine; Endocrinology; Germany; Humans; Pain Management; Perioperative Care; Risk Factors
PubMed: 34404106
DOI: 10.1055/a-1284-6245 -
Current Diabetes Reviews 2021Peripheral neuropathy is a major and chronic complication of diabetes mellitus affecting more than 50% patients suffering from diabetes. There is the involvement of both... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Peripheral neuropathy is a major and chronic complication of diabetes mellitus affecting more than 50% patients suffering from diabetes. There is the involvement of both large and small diameter nerve fibres leading to altered somatosensory and motor sensations, thereby causing impaired balance and postural instability.
OBJECTIVE
The aim of this study is to assess the effects of exercises on posture and balance in patients suffering from diabetes mellitus.
METHODS
Mean changes in Timed Up and Go test (TUGT), Berg Balance Scale and Postural Sway with eyes open and eyes closed on Balance System were primary outcome measures. RevMan 5.3 software was used for the meta-analyses. Eighteen randomized controlled trials met the selection criteria and were included in the study. All the studies ranked high on the PEDro Rating scale. The risk of bias was assessed by the Cochrane collaboration tool of risk of bias. Included studies had a low risk of bias. Sixteen RCT's were included for the meta-analysis.
RESULTS
Results of meta-analysis showed that there was a statistically significant improvement in TUGT with p≤ 0.05 and substantial heterogeneity (I2 = 84%, p < 0.00001) in the experimental group as compared to control group. There was a statistically significant difference in Berg Balance Scale scores and heterogeneity of I2 = 62%, p < 0.00001 and significant changes in postural stability (eyes open heterogeneity of I2 = 100%, p =0.01 and eyes closed, heteogeneity I2 = 0%, p =0.01). Sensitivity analysis causes a change in heterogeneity.
CONCLUSION
It can be concluded that various exercises like balance training, core stability, Tai-Chi, proprioceptive training, etc. have a significant effect on improving balance and posture in diabetic neuropathy.
Topics: Diabetes Mellitus; Diabetic Neuropathies; Exercise; Exercise Therapy; Humans; Postural Balance; Posture; Time and Motion Studies
PubMed: 32619175
DOI: 10.2174/1573399816666200703190437 -
Diabetes & Metabolism Journal Jul 2021Diabetic peripheral neuropathy (DPN) is one of the most serious complications of type 2 diabetes mellitus (T2DM). DPN increases the risk of ulcers, foot infections, and...
BACKGROUND
Diabetic peripheral neuropathy (DPN) is one of the most serious complications of type 2 diabetes mellitus (T2DM). DPN increases the risk of ulcers, foot infections, and noninvasive amputations, ultimately leading to long-term disability.
METHODS
Seven hundred patients with T2DM were investigated from 2013 to 2017 in the Sanlin community by obtaining basic data from the electronic medical record system (EMRS). From September 2018 to July 2019, 681 patients (19 missing) were investigated using a questionnaire, physical examination, biochemical index test, and follow-up Toronto clinical scoring system (TCSS) test. Patients with a TCSS score ≥6 points were diagnosed with DPN. After removing missing values, 612 patients were divided into groups in a 3:1 ratio for external validation. Using different Lasso analyses (misclassification error, mean squared error, -2log-likelihood, and area under curve) and a logistic regression analysis of the training set, models A, B, C, and D were established. The receiver operating characteristic (ROC) curve, calibration plot, dynamic component analysis (DCA) measurements, net classification improvement (NRI) and integrated discrimination improvement (IDI) were used to validate discrimination and clinical practicality of the model.
RESULTS
Through data analysis, model A (containing four factors), model B (containing five factors), model C (containing seven factors), and model D (containing seven factors) were built. After calibration, ROC curve, DCA, NRI and IDI, models C and D exhibited better accuracy and greater predictive power.
CONCLUSION
Four prediction models were established to assist with the early screening of DPN in patients with T2DM. The influencing factors in model C and D are more important factors for patients with T2DM diagnosed with DPN.
Topics: Diabetes Mellitus, Type 2; Diabetic Neuropathies; Humans; ROC Curve; Risk Factors
PubMed: 34352988
DOI: 10.4093/dmj.2020.0100