scholarly journals Neurophysiological evaluation of short-term outcome of pharmacological treatment of diabetic neuropathy

2017 ◽  
Vol 74 (8) ◽  
pp. 723-727 ◽  
Author(s):  
Milan Cvijanovic ◽  
Svetlana Simic ◽  
Aleksandar Kopitovic ◽  
Ranko Raicevic

Background/Aim. Diabetic polyneuropathy (DPN) is a very frequent and progressive disease that severely impairs the overall quality of life, accompanied by a high rate of disability. For these reasons, the testing of therapeutic agents for this disease is increasing. Methods. We tested the most frequently used drugs for diabetic neuropathy in our area, along with electrophysiological monitoring in order to avoid subjectivity and the "placebo effect". A total of 120 patients were divided into four groups: three groups who received alpha-lipoic acid, benfotiamine or gabapentin respectively, and the control group who did not receive any treatment. In all the patients we analyzed motor conduction velocity, distal latency, sensory conduction velocity, F wave and F wave chronodispersion before and after treatment with each drug. Results. It is evident that some drugs had a favorable impact on the condition of the peripheral nerves. Alpha-lipoic acid and benfotiamine had an impact on the recovery of the nerve, i.e. pathophysiological processes, whereas gabapentin had no impact on the recovery, similarly to the control group without any treatment. Electrophysiological indicators had different sensitivity to detect conditions of the peripheral neurons. The best effect, in terms of increased sensory conduction velocity, had the patients treated with alpha-lipoic acid. Conclusion. The effect of alpha-lipoic acid and benfotiamine on the condition of peripheral nerve was evident. The failure of recovery, i.e. deterioration of electrophysiological parameters in patients who did not receive neuroprotective therapy suggests the need of permanent medication and periodic electrophysiological monitoring of patients with diabetic polyneuropathy.

Diabetic neuropathy (DN) is the most common chronic complication of diabetes mellitus. Hyperglycemia-induced oxidative stress induces programmed cell death of nerves, which contributes to the pathology of Diabetic neuropathy. Many clinical trials depend on supplement, in an attempt to improve neuropathy symptoms such as (pain & tingling) and patient quality of life, one of them is alpha-lipoic acid (ALA). Alpha-lipoic acid is a potent anti-inflammatory and antioxidant with insulin-mimetic activity, it has been shown to improve clinical symptoms in experimental Diabetic neuropathy and protect peripheral nerves from ischemia, in addition to stimulate the nerve growth factor and promote fiber regeneration. This study is aimed to evaluate the effect of Alpha-lipoic acid supplement as adjuvant therapy to gabapentin in patients with diabetic neuropathy, which can reflect by the improvement in nerve conduction velocity (NCV) a test was conducted to assess the severity of iabetic neuropathy and clinical symptoms. A prospective randomized- open-label interventional study for 3 months include 33 DN patients, aged (18-69) years were divided into two groups; group A include 16 patients received gabapentin 300 mg once daily at night, and group B include 17 patients received gabapentin 300 mg once daily at night plus alpha-lipoic acid 600mg once daily. Pre and post 3 months of treatment, blood samples used to measure metabolic biomarkers (FBG, HbA1c), in addition to Nerve conduction velocity. The results showed that, the intervention group produced a highly significant change in HbA1c & no significant change in FBG levels after 3months of Alpha-lipoic acid supplementation. Meanwhile, there is no significant change in HbA1c & FBG levels in patients treated with gabapentin alone. Moreover, results showed highly significant improvement (P˂0.01) in Nerve conduction velocity for two groups at the end of the study. Addition of Alpha-lipoic acid to gabapentin in diabetic neuropathy patients result to improve the glycemic control & Nerve conduction velocity. after three months of treatment.


BioMed ◽  
2021 ◽  
Vol 2 (1) ◽  
pp. 1-12
Author(s):  
Dominika Mačáková ◽  
Markéta Plchová ◽  
Lubica Cibičková ◽  
Ondřej Krystyník ◽  
David Karásek ◽  
...  

Introduction: One of the most common chronic complications of diabetes mellitus is diabetic neuropathy. The aim of the study was to elucidate the association between selected markers of oxidative stress and markers of vascular stiffness and to contribute to the understanding of the pathophysiological links between oxidative stress and micro- and macrovascular complications of diabetes. Methods: We enrolled patients with type 2 DM (n = 49), with moderate to severe diabetic polyneuropathy of lower extremities, and a control group without microvascular complications (n = 29). The neuropathy group received alpha-lipoic acid infusion therapy. Sampling was performed before and after treatment to determine the level of oxidative markers (advanced glycation end-products—AGEs, glycation products of AOPP proteins, MDA malondialdehyde and oxidized LDL), parameters of metabolic control and parameters of vascular wall stiffness were measured by sphygmomanometry. Results: After the administration of alpha-lipoic acid, we demonstrated a significant reduction in the level of three selected oxidation markers (AOPP: p < 0.001, AGE: p < 0.001, oxLDL: p < 0.05). In contrast, the level of MDA did not change significantly (p = 0.83). Throughout the group, oxLDL was significantly correlated with central BP (SBP and DBP in the aorta, p < 0.05 and <0.01) and with the augmentation index (AiX/75 bpm, p < 0.01). AOPP significantly correlated with systolic BP in the aorta (p < 0.05). We did not find significant associations in the remaining oxidation markers. Conclusion: In our study, we demonstrated a reduction in the level of oxidative markers after alpha-lipoic acid administration and also an association between markers of oxidative damage to lipids and proteins (oxLDL and AOPP) and some parameters of vascular stiffness.


2000 ◽  
Vol 108 (03) ◽  
pp. 168-174 ◽  
Author(s):  
E. Haak ◽  
K. Usadel ◽  
K. Kusterer ◽  
P. Amini ◽  
R. Frommeyer ◽  
...  

Life Sciences ◽  
2019 ◽  
Vol 216 ◽  
pp. 101-110 ◽  
Author(s):  
Nasrin Sadeghiyan Galeshkalami ◽  
Mohammad Abdollahi ◽  
Rezvan Najafi ◽  
Maryam Baeeri ◽  
Akram Jamshidzade ◽  
...  

2021 ◽  
Vol 55 (4) ◽  
pp. 246
Author(s):  
Gede Wira Buanayuda ◽  
Hamdani Lunardhi ◽  
Indra Gusti Mansur

Infertility is a problem for husband and wife, in the last 20 years the number of infertile couples has tended to increase by around 6.5 million pairs. The infertile couple can use the intrauterine insemination method to obtain offspring if a conventional method approach cannot be performed. Insemination requires a sperm preparation stage in which there are centrifugation and resuspension procedures that tend to produce excess reactive oxygen species (ROS). Excessive ROS will damage the motility of the spermatozoa. This study aims to prove the addition of alpha lipoic acid (ALA) as an antioxidant in the process of sperm preparation to improve and maintain better sperm motility. This research is a laboratory study with an experimental research design. The sample consisted of 10 infertile men who visited the Andrology section of the Sayyidah Jakarta Mother and Child Hospital (RSIA), where each ejaculate from the patient would be divided into 3 groups namely (k1) fresh semen as a control group, (k2) sperm preparation group without ALA, (k3) group of sperm preparation with the addition of ALA. The motility of spermatozoa was observed with the WHO 1999 method for 4 hours in units of percent. Progressive motility in k3 (47.95 ± 3.617) was higher than in k2 (38.05 ± 3.278) statistically significantly different after 3 hours of observation (p<0.0001). Progressive motility in k3 (78.8 ± 5.841) was higher than k1 (56.55 ± 7.511) from the initial observation (p <0.0001). The progressive motility of k2 (76.05 ± 6.768) was higher than k1 (56.55 ± 7.511) from the start of the observation (0.0001). It can be concluded that the addition of ALA in the sperm preparation process increases and maintains progressive motility that is better than sperm preparation without ALA addition after 3 hours of observation.


2020 ◽  
Vol 12 (4) ◽  
pp. 113-118
Author(s):  
V. A. Golovacheva ◽  
I. A. Strokov

The most common form of peripheral nervous system damage in diabetes mellitus is distal symmetric sensorimotor polyneuropathy (DSSMPN). Chronic hyperglycemia, dyslipidemia, and impaired microcirculation are considered to be the key mechanisms for the development of DSSMPN, but its pathogenesis is still unclear and continues to be studied. The paper analyzes the issues of diagnosis of DSSMPN and the effective principles of patient treatment. It also discusses the use of alpha-lipoic acid (ALA) as a drug for the pathogenetic treatment of DSSMPN and describes the results of clinical trials of its treatment with ALA preparations.


2018 ◽  
Vol 8 (1) ◽  
pp. 6-6 ◽  
Author(s):  
Parisa Jamor ◽  
Hassan Ahmadvand ◽  
Hesam Ashoory ◽  
Esmaeel Babaeenezhad

Background: Myeloperoxidase (MPO) is involved in the initiation, progression, and complications of atherosclerosis in diabetic patients. Objectives: In the current study, the impact of alpha-lipoic acid (LA), a natural antioxidant and a cofactor in the enzyme complexes on MPO, catalase (CAT) and glutathione peroxidase (GPx) activity, glutathione (GSH) and malondialdehyde (MDA) level, histopathology of kidney and expression of antioxidant enzymes, superoxide dismutase (SOD), GPx and CAT which are involved in the detoxification of reactive oxygen species (ROS), was evaluated in alloxan-induced diabetic rats. Materials and Methods: In this study, 30 male Rattus norvegicus rats randomly divided into three groups; control (C), non-treated diabetic (NTD), and LA-treated diabetics (LATD) was induced by alloxan monohydrate (100mg/kg; subcutaneous [SC]). Then treatment was performed with alphaLA (100 mg/kg intraperitoneal (i.p) daily to 6 weeks). Blood sample of animals collected to measure levels of MPO, CAT and GPx activity GSH and MDA. Kidney paraffin sections were prepared to estimate histological studies and to measure quantitative gene expression SOD, GPX and CAT in kidney. Results: Induction of diabetes led to a significant increase in MPO and MDA, reduced GSH level and GPx and CAT activities (P < 0.05). However, treatment with alpha-LA led to a significant elevation in GPx, CAT and GSH levels with a reduction in MPO activities and MDA levels (P < 0.05). Furthermore, the real-time reverse transcriptase-polymerase chain reaction (RT-PCR) analysis results showed increased expressions of GPx, CAT and SOD enzyme in the treatment group compared with the diabetic control group. Histopathological lesions such as increased glomerular volume and lymphocyte infiltration were attenuated in the alpha-LA treated group. Conclusions: Our findings indicated that alpha-LA supplementation is effective in preventing complications induced by oxidative stress and atherosclerosis in diabetic rats.


2019 ◽  
Vol 70 (9) ◽  
pp. 3108-3114 ◽  
Author(s):  
Amorin Remus Popa ◽  
Simona Bungau ◽  
Cosmin Mihai Vesa ◽  
Andrei Cristian Bondar ◽  
Carmen Pantis ◽  
...  

Distal symmetric painful diabetic neuropathy is the most frequent clinical form of diabetic neuropathy. The condition appears as a result of alteration of the structure and function of nervous fibres as a consequence of hyperglycaemia. Hyperglycaemia determines the metabolism of glucose on alterative pathways and generates increased oxidative stress, mechanisms that cause an accelerated apoptosis of the neurons and a high intensity of lipid peroxidation. Pathogenic treatment of diabetic neuropathy includes limited options, two of them are: Benfotiamine (inhibits the metabolism of glucose on hexosamine pathway, reducing the formation of advanced glycosylation end products) and alpha-lipoic acid (has a scavenger effect on free radical species). The study included 120 patients with distal symmetric painful diabetic neuropathy randomized in 3 treatment groups. We evaluated the effect of oral administration for 8 weeks of Benfotiamine in a dosage of 300mg/day in monotherapy, of alpha-lipoic acid in a dosage of 600 mg/day in monotherapy, respectively of both -in combined therapy - on the parameters that are used to determine the severity of distal symmetric painful diabetic neuropathy: Diabetic Neuropathy Symptoms score, Neuropathy Disability Score and the intensity of lower limb pain on the visual analogue pain scale. All the three therapies were effective with a statistically significant improvement of these parameters, but the combined therapy with alpha-lipoic acid and Benfotiamine was superior to the monotherapy with alpha-lipoic acid or Benfotiamine.


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