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The Journal of Pharmacy and Pharmacology Apr 2023Peripheral neuropathy (PN), as an adverse reaction attributed to statin drugs, as well as the beneficial neuroprotective properties of statins, have been widely reported...
OBJECTIVES
Peripheral neuropathy (PN), as an adverse reaction attributed to statin drugs, as well as the beneficial neuroprotective properties of statins, have been widely reported and discussed in the literature. The aim of this study was to systematically review original publications that investigated the association of statin use and PN in diabetic and non-diabetic models, whether determined as a result of laboratory experimentation, or in a clinical setting.
KEY FINDINGS
A comprehensive search of the databases Google Scholar, PubMed/MEDLINE and Scopus was conducted. Sixty-six articles, which evaluated the link between statins and PN in either a clinical or in-vivo/in-vitro condition were included. Statin treatment in neuropathy-induced animal models demonstrates favourable neurological effects in both the morphological and functional aspects of neurons. However, an extended duration of statin treatment is minimally associated with the development of non-diabetic idiopathic neuropathy. Importantly, statins have the potential to regress diabetic PN through anti-inflammatory, anti-oxidant and immunomodulatory properties.
SUMMARY
When interpreting the results from studies that deal with the relationship between statins and PN, it is important to determine the mechanism(s) underlying the development of any potential neuropathies (in the presence or absence of diabetes), the type of model used (human or animal) and the duration of statin treatment.
Topics: Animals; Humans; Hydroxymethylglutaryl-CoA Reductase Inhibitors; Diabetic Neuropathies; Diabetes Mellitus
PubMed: 36843566
DOI: 10.1093/jpp/rgac104 -
Oncology Nursing Forum May 2017Chemotherapy-induced peripheral neuropathy (CIPN) is a dose-limiting chemotherapy toxicity, which has a long-lasting effect and decreases quality of life. Although... (Review)
Review
PROBLEM IDENTIFICATION
Chemotherapy-induced peripheral neuropathy (CIPN) is a dose-limiting chemotherapy toxicity, which has a long-lasting effect and decreases quality of life. Although several tools have been developed to detect CIPN, the study quality, psychometric properties, and practicality of CIPN assessment tools have not been systematically reviewed. .
LITERATURE SEARCH
Electronic searches using keywords were conducted in Medline, PubMed, CINAHL®, and Cochrane Library for articles published from 1980-2015. Eligible studies were included if they involved patients with cancer receiving chemotherapy, provided CIPN assessment tools with psychometric properties, and were published in English. .
DATA EVALUATION
Data were extracted, and study quality was assessed. CIPN tools were evaluated in terms of psychometric properties and practicality. .
SYNTHESIS
A total of 19 studies describing 20 tools were reviewed. The quality of studies varied from strong to weak. The validity ranged from low to high, and the reliability with internal consistency ranged from 0.56-0.96. Poor inter-rater agreement was found. Not all of the tools were deemed practical. .
CONCLUSIONS
Considering the psychometric properties and practicality, two tools (Functional Assessment of Cancer Therapy/Gynecologic Oncology Group-Neurotoxicity [FACT/GOG-Ntx] and Total Neuropathy Score [TNS]) are recommended for assessing CIPN. .
IMPLICATIONS FOR NURSING
Routine assessment of CIPN and choosing appropriate assessment tools are imperative. The FACT/GOG-Ntx and TNS are recommended for clinical use.
Topics: Adult; Aged; Aged, 80 and over; Antineoplastic Agents; Diagnostic Techniques, Neurological; Female; Humans; Male; Middle Aged; Neoplasms; Peripheral Nervous System Diseases; Psychometrics; Reproducibility of Results; Surveys and Questionnaires
PubMed: 28635977
DOI: 10.1188/17.ONF.E111-E123 -
Journal of Diabetes and Its... Oct 2021We conducted a systematic review of the literature with meta-analysis to determine whether painful diabetic neuropathy is associated with a specific inflammatory profile. (Meta-Analysis)
Meta-Analysis Review
OBJECTIVES
We conducted a systematic review of the literature with meta-analysis to determine whether painful diabetic neuropathy is associated with a specific inflammatory profile.
METHODS
The study is based on the PRISMA statement for systematic reviews. We performed a search of published studies up until January 2021 in MEDLINE and Web of Science based on heading and free text terms. The search strategy included the phrases: diabetic peripheral neuropathy, painful peripheral neuropathy individually and in combination with the terms: inflammation and inflammatory biomarkers. We screened titles and abstracts and performed data extraction. We also manually searched the article titles in the reference lists of key studies and reviews published in the last 20 years.
DATA EXTRACTION
Data extracted from the studies included study design, inclusion and exclusion criteria, sample type including serum and plasma, source of the sample including patients with peripheral diabetic neuropathy or patients with painful and painless neuropathy of any etiology. Blood concentrations of all measured cytokines were recorded. Whenever possible we calculated the effect size and confidence interval. Non-human studies were excluded from the meta-analysis.
RESULTS
Thirteen studies were included in this meta-analysis. The study design was cross-sectional, case control or cohort type studies. Specific inflammatory mediators are significantly higher in painful than in painless diabetic neuropathy as well as in painful neuropathies of any etiology. Markers of inflammation are also increased in those patients with diabetes mellitus, who suffer from peripheral neuropathy in comparison to patients with diabetes mellitus but no signs of peripheral neuropathy. A proinflammatory state may be the common denominator of pain and peripheral neuropathy in patients with diabetes mellitus but the inflammatory profiles seem to differ.
Topics: Biomarkers; Cross-Sectional Studies; Diabetes Mellitus; Diabetic Neuropathies; Humans; Inflammation; Pain; Peripheral Nervous System Diseases
PubMed: 34389235
DOI: 10.1016/j.jdiacomp.2021.108017 -
Diabetic Medicine : a Journal of the... Nov 2016To evaluate treatment options for neuropathic pain and sensory symptoms resulting from diabetic peripheral neuropathy of the feet. (Review)
Review
AIM
To evaluate treatment options for neuropathic pain and sensory symptoms resulting from diabetic peripheral neuropathy of the feet.
METHODS
The databases PubMed, Embase and Web-of-Science were searched for randomized controlled trials, published in the period from database inception to 2 July 2015, that evaluated treatments for diabetic peripheral neuropathy of the feet with placebo or standard treatment as comparators. Participants in these trials included people with diabetes mellitus and diabetic peripheral neuropathy who were given any treatment for diabetic peripheral neuropathy. Risk of bias was assessed using the Delphi list of criteria. Data from the trials were extracted using standardized data extraction sheets by two authors independently. All analyses were performed using RevMan 5.2. In case of clinical homogeneity, statistical pooling was performed using a random effects model.
RESULTS
This review included 27 trials on pharmacological, non-pharmacological and alternative treatments. In the meta-analysis of trials of α-lipoic acid versus placebo, total symptom score was reduced by -2.45 (95% CI -4.52; -0.39) with 600 mg i.v. α-lipoic acid (three trials), and was reduced by -1.95 (95% CI -2.89; -1.01) with 600 mg oral α-lipoic acid (two trials). Significant improvements in diabetic peripheral neuropathy symptoms were found with opioids, botulinum toxin A, mexidol, reflexology and Thai foot massage, but not with micronutrients, neurotrophic peptide ORG 2677 and photon stimulation therapy.
CONCLUSION
In this review, we found that α-lipoic acid, opioids, botulinum toxin A, mexidol, reflexology and Thai foot massage had significant beneficial results.
Topics: Complementary Therapies; Diabetic Foot; Diabetic Neuropathies; Humans; Neuralgia; Pain Management; Randomized Controlled Trials as Topic
PubMed: 26822889
DOI: 10.1111/dme.13083 -
The Cochrane Database of Systematic... Jan 2024Diabetic peripheral neuropathy (DPN) is a frequent complication in people living with type 1 or type 2 diabetes. There is currently no effective treatment for DPN.... (Review)
Review
BACKGROUND
Diabetic peripheral neuropathy (DPN) is a frequent complication in people living with type 1 or type 2 diabetes. There is currently no effective treatment for DPN. Although alpha-lipoic acid (ALA, also known as thioctic acid) is widely used, there is no consensus about its benefits and harms.
OBJECTIVES
To assess the effects of alpha-lipoic acid as a disease-modifying agent in people with diabetic peripheral neuropathy.
SEARCH METHODS
On 11 September 2022, we searched the Cochrane Neuromuscular Specialised Register, CENTRAL, MEDLINE, Embase, and two clinical trials registers. We also searched the reference lists of the included studies and relevant review articles for additional references not identified by the electronic searches.
SELECTION CRITERIA
We included randomised clinical trials (RCTs) that compared ALA with placebo in adults (aged 18 years or older) and that applied the study interventions for at least six months. There were no language restrictions.
DATA COLLECTION AND ANALYSIS
We used standard methods expected by Cochrane. The primary outcome was change in neuropathy symptoms expressed as changes in the Total Symptom Score (TSS) at six months after randomisation. Secondary outcomes were change in neuropathy symptoms at six to 12 months and at 12 to 24 months, change in impairment, change in any validated quality of life total score, complications of DPN, and adverse events. We assessed the certainty of the evidence using GRADE.
MAIN RESULTS
Our analysis incorporated three trials involving 816 participants. Two studies included people with type 1 or type 2 diabetes, while one study included only people with type 2 diabetes. The duration of treatment was between six months and 48 months. We judged all studies at high risk of overall bias due to attrition. ALA compared with placebo probably has little or no effect on neuropathy symptoms measured by TSS (lower score is better) after six months (mean difference (MD) -0.16 points, 95% confidence interval (CI) -0.83 to 0.51; 1 study, 330 participants; moderate-certainty evidence). The CI of this effect estimate did not contain the minimal clinically important difference (MCID) of 0.97 points. ALA compared with placebo may have little or no effect on impairment measured by the Neuropathy Impairment Score-Lower Limbs (NIS-LL; lower score is better) after six months (MD -1.02 points, 95% CI -2.93 to 0.89; 1 study, 245 participants; low-certainty evidence). However, we cannot rule out a significant benefit, because the lower limit of the CI surpassed the MCID of 2 points. There is probably little or no difference between ALA and placebo in terms of adverse events leading to cessation of treatment within six months (risk ratio (RR) 1.48, 95% CI 0.50 to 4.35; 3 studies, 1090 participants; moderate-certainty evidence). No studies reported quality of life or complications associated with DPN.
AUTHORS' CONCLUSIONS
Our analysis suggests that ALA probably has little or no effect on neuropathy symptoms or adverse events at six months, and may have little or no effect on impairment at six months. All the studies were at high risk of attrition bias. Therefore, future RCTs should ensure complete follow-up and transparent reporting of any participants missing from the analyses.
Topics: Adult; Humans; Thioctic Acid; Diabetic Neuropathies; Diabetes Mellitus, Type 2; Lower Extremity; MEDLINE
PubMed: 38205823
DOI: 10.1002/14651858.CD012967.pub2 -
BMJ Open Diabetes Research & Care May 2021There is growing evidence of excess peripheral neuropathy in pre-diabetes. We aimed to determine its prevalence, including the impact of diagnostic methodology on... (Review)
Review
There is growing evidence of excess peripheral neuropathy in pre-diabetes. We aimed to determine its prevalence, including the impact of diagnostic methodology on prevalence rates, through a systematic review conducted according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. A comprehensive electronic bibliographic search was performed in MEDLINE, EMBASE, PubMed, Web of Science and the Cochrane Central Register of Controlled Trials from inception to June 1, 2020. Two reviewers independently selected studies, extracted data and assessed risk of bias. An evaluation was undertaken by method of neuropathy assessment. After screening 1784 abstracts and reviewing 84 full-text records, 29 studies (9351 participants) were included. There was a wide range of prevalence estimates (2%-77%, IQR: 6%-34%), but the majority of studies (n=21, 72%) reported a prevalence ≥10%. The three highest prevalence estimates of 77% (95% CI: 54% to 100%), 71% (95% CI: 55% to 88%) and 66% (95% CI: 53% to 78%) were reported using plantar thermography, multimodal quantitative sensory testing and nerve conduction tests, respectively. In general, studies evaluating small nerve fiber parameters yielded a higher prevalence of peripheral neuropathy. Due to a variety of study populations and methods of assessing neuropathy, there was marked heterogeneity in the prevalence estimates. Most studies reported a higher prevalence of peripheral neuropathy in pre-diabetes, primarily of a small nerve fiber origin, than would be expected in the background population. Given the marked rise in pre-diabetes, further consideration of targeting screening in this population is required. Development of risk-stratification tools may facilitate earlier interventions.
Topics: Humans; Peripheral Nervous System Diseases; Prediabetic State; Prevalence; Research Design
PubMed: 34006607
DOI: 10.1136/bmjdrc-2020-002040 -
Integrative Cancer Therapies 2023This systematic review and meta-analysis aimed to determine whether chemotherapy-induced peripheral neuropathy (CIPN) affects the risk of falls and physical function in... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
This systematic review and meta-analysis aimed to determine whether chemotherapy-induced peripheral neuropathy (CIPN) affects the risk of falls and physical function in patients with cancer.
METHODS
A literature search was conducted in the CINAHL, Scopus, and PubMed databases for articles published from January 1950 to April 2022. Seven review authors retrieved studies using predetermined eligibility criteria, extracted the data, and evaluated the quality.
RESULTS
Nine studies were included in the analysis. Patients with CIPN had a significantly higher risk of falls than those without CIPN (risk ratio = 1.38, 95% confidence interval [CI] =1.18-1.62). Patients with CIPN had lower grip strength (standardized mean difference [SMD] =-0.42, 95% CIs = -0.70 to -0.14, = .003), longer chair stand time (SMD = 0.56, 95% CIs = -0.01 to 1.17, = .05), worse timed up and go test time (SMD = 0.79, 95% CIs = 0.41 to 1.17, < .0001), and lower mean Fullerton Advanced Balance scale score (SMD = -0.81, 95% CIs = -1.27 to -0.36, = .005) than patients without CIPN. There were no significant differences in gait speed ( = .38) or Activities-specific Balance Confidence Scale score ( = .09) between patients with and without CIPN.
CONCLUSIONS
This systematic review and meta-analysis demonstrated that patients with CIPN are prone to falls and impaired balance function and muscle strength.
Topics: Humans; Antineoplastic Agents; Postural Balance; Time and Motion Studies; Neoplasms; Peripheral Nervous System Diseases
PubMed: 37822238
DOI: 10.1177/15347354231185110 -
BMJ Supportive & Palliative Care Mar 2023Duloxetine has previously been reported to be promising in the setting of chemotherapy-induced peripheral neuropathy (CIPN). The aim of this study was to conduct a... (Meta-Analysis)
Meta-Analysis
INTRODUCTION
Duloxetine has previously been reported to be promising in the setting of chemotherapy-induced peripheral neuropathy (CIPN). The aim of this study was to conduct a comprehensive systematic review and meta-analysis, on the use of duloxetine in prevention and treatment of CIPN.
METHODS
PubMed, Embase and Cochrane CENTRAL were searched from database inception up until April 2022. Articles were included in this review if they reported on duloxetine use in the setting of CIPN, in a multiarm comparative human trial. A random effects DerSimonian-Laird model was used to calculate summary risk ratios (RR) and corresponding 95% CIs, comparing duloxetine to placebo. This review was registered on.
RESULTS
Seven randomised controlled trials that included 645 patients were identified. Five reported on duloxetine for treatment of CIPN, and two for prevention of CIPN. Two studies had some concern for bias. Duloxetine was statistically similar to placebo in its efficacy, both in the treatment (RR 0.92, 95% CI 0.84 to 1.01) and prevention (RR 1.02, 95% CI 0.87 to 1.19) of CIPN. Safety profile was similar, in the treatment (RR 1.31, 95% CI 0.90 to 1.89) and prevention (RR 1.52, 95% CI 0.98 to 2.38) setting.
CONCLUSION
There is currently limited evidence supporting duloxetine's use for CIPN. There is a need for more comprehensive and higher-quality trials assessing duloxetine in the setting of CIPN, before further clinical practice recommendations.
TRIAL REGISTRATION NUMBER
PROSPERO (CRD42022327487).
Topics: Humans; Duloxetine Hydrochloride; Peripheral Nervous System Diseases; Antineoplastic Agents; Randomized Controlled Trials as Topic
PubMed: 36194493
DOI: 10.1136/spcare-2022-003815 -
European Journal of Neurology Apr 2021Human immunodeficiency virus (HIV)-associated neurological syndromes occur in affected individuals as a consequence of primary HIV infection, opportunistic infections,... (Meta-Analysis)
Meta-Analysis
BACKGROUND AND PURPOSE
Human immunodeficiency virus (HIV)-associated neurological syndromes occur in affected individuals as a consequence of primary HIV infection, opportunistic infections, inflammation and as an adverse effect of some forms of antiretroviral treatment (ART). The aim of this systematic review was to establish the epidemiological characteristics, clinical features, pathogenetic mechanisms and risk factors of HIV-related peripheral neuropathy (PN).
METHODS
A systematic, computer-based search was conducted using the PubMed database. Data regarding the above parameters were extracted. Ninety-four articles were included in this review.
RESULTS
The most commonly described clinical presentation of HIV neuropathy is the distal predominantly sensory polyneuropathy. The primary pathology in HIVPN appears to be axonal rather than demyelinating. Age and treatment with medications belonging in the nucleoside analogue reverse transcriptase class are risk factors for developing HIV-related neuropathy. The pooled prevalence of PN in patients naïve to ARTs was established to be 29% (95% CI: 9%-62%) and increased to 38% (95% confidence interval [CI]: 29%-48%) when looking into patients at various stages of their disease. More than half of patients with HIV-related neuropathy are symptomatic (53%, 95% CI: 41%-63%). Management of HIV-related neuropathy is mainly symptomatic, although there is evidence that discontinuation of some types of ART, such as didanosine, can improve or resolve symptoms.
CONCLUSIONS
Human immunodeficiency virus-related neuropathy is common and represents a significant burden in patients' lives. Our understanding of the disease has grown over the last years, but there are unexplored areas requiring further study.
Topics: HIV; HIV Infections; Humans; Peripheral Nervous System Diseases; Risk Factors
PubMed: 33226721
DOI: 10.1111/ene.14656 -
Neurology Aug 2017To assess the design characteristics and reporting quality of published randomized controlled trials (RCTs) for treatments of chemotherapy-induced peripheral neuropathy... (Review)
Review
OBJECTIVE
To assess the design characteristics and reporting quality of published randomized controlled trials (RCTs) for treatments of chemotherapy-induced peripheral neuropathy (CIPN) initiated before or during chemotherapy.
METHODS
In this systematic review of RCTs of preventive or symptomatic pharmacologic treatments for CIPN initiated before or during chemotherapy treatment, articles were identified by updating the PubMed search utilized in the CIPN treatment guidelines published in the in 2014.
RESULTS
Thirty-eight articles were identified. The majority included only patients receiving platinum therapies (61%) and used a placebo control (79%). Common exclusion criteria were preexisting neuropathy (84%), diabetes (55%), and receiving treatments that could potentially improve neuropathy symptoms (45%). Ninety-five percent of studies initiated the experimental treatment before CIPN symptoms occurred. Although 58% of articles identified a primary outcome measure (POM), only 32% specified a primary analysis. Approximately half (54%) of the POMs were patient-reported outcome measures of symptoms and functional impairment. Other POMs included composite measures of symptoms and clinician-rated signs (23%) and vibration tests (14%). Only 32% of articles indicated how data from participants who prematurely discontinued chemotherapy were analyzed, and 21% and 29% reported the number of participants who discontinued chemotherapy due to neuropathy or other/unspecified reasons, respectively.
CONCLUSIONS
These data identify reporting practices that could be improved in order to enhance readers' ability to critically evaluate RCTs of CIPN treatments and use the findings to inform the design of future studies and clinical practice. Reporting recommendations are provided.
Topics: Antineoplastic Agents; Humans; Peripheral Nervous System Diseases; Randomized Controlled Trials as Topic
PubMed: 28747442
DOI: 10.1212/WNL.0000000000004272