Role of Carnosine in Combination With Vitamin B Complex in Preventing the Progression of Diabetic Neuropathy in Type 2 Diabetes Patients

NCT ID: NCT05422352

Last Updated: 2022-06-29

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-01-14

Study Completion Date

2022-03-28

Brief Summary

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Evaluation of the influence of oral administration of carnosine in combination with vitamin B Complex in preventing the progression of diabetic neuropathy in type 2 diabetes patients.

Detailed Description

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Diabetic peripheral neuropathy (DPN) is considered the most common chronic complication of diabetes mellitus, with an incidence rate of about 50%.

DPN is a group of clinical syndromes that affects single or combined regions in the nervous system and is considered one of the microvascular complications that affect greatly the quality of life of patients due to pain and frequency of hospitalization.

DPN commonly develops silent without symptoms in the early stages and when symptoms start appearing only a few effective therapies are available and that is what causes significant patient suffering and societal burden.

Those mechanisms of pain and treatment remain challenging and are restricted by variable efficacy and side effects of therapies and intensification of glycemic control remain the cornerstone for the prevention or delay of DPN.

Lately, it has been proven that long-term low-grade inflammation has an important role in DPN pathogenesis. Clinical trials in DPN patients with pain and without pain showed that the DPN with pain group had higher inflammation markers.

In addition, DPN patients with pain had more increased cytokine levels compared with DPN patients without pain. Besides the correlation between abnormalities in nerve fibers and the rise in interleukin (IL)-6 and IL-10.

Moreover, Oxidative stress plays an important role in the development of diabetic neuropathy a reactive oxygen species (ROS) increases the progression of nerve fiber damage and dysfunction.

Those reactive oxygen species are capable of destroying the lipids found in the myelinated structures of nerves resulting in axon loss and disturbance in the microvasculature of the peripheral nervous system.

Antioxidants are available endogenously as a normal defense mechanism of the cell or obtained exogenously from diet and could play an important role in the progression of damage to the neurons in Diabetic neuropathy.

Carnosine, a naturally-occurring dipeptide (β-alanyl-L-histidine) first described in 1900 by Gulewitsch and Amiradzibi, is found predominantly in post-mitotic tissues (e.g. brain and innervated muscle) of vertebrates.

Carnosine is claimed to decrease oxygen-free-radical mediated damage to cellular macromolecules either by chelating divalent cations or scavenging hydroxy radicals with its imidazole moiety. Free-radical damage is not the only process to affects the structure of proteins and nucleic acids.

Furthermore, previous studies proved the neuroprotective action of carnosine with its anti-inflammatory and antioxidant properties.

Moreover, another study highlighted the use of carnosine as a supportive treatment against neurotoxins.

Also, Carnosine has been shown to protect cultured neurons from oxygen-glucose deprivation and to exhibit neuroprotective properties in animal models of global and cerebral ischemia

Conditions

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Diabetic Neuropathies

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

intervention study clinical trial
Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

intervention clinical trial

Study Groups

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intervention Group

Patients who will receive carnosine supplementation + Vitamin B complex two tablets per day

Group Type EXPERIMENTAL

Carnosine

Intervention Type DIETARY_SUPPLEMENT

Patients who will receive carnosine supplementation 500mg capsules (Now foods) in combination with Vitamin B complex (B1+B6+B12, 150 mg+100 mg+1 mg, respectively, Neurovit, European Egyptian Pharm. Ind., Egypt), two tablets per day

Control group

Patients will receive only Vitamin B Complex two tablets per day

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Carnosine

Patients who will receive carnosine supplementation 500mg capsules (Now foods) in combination with Vitamin B complex (B1+B6+B12, 150 mg+100 mg+1 mg, respectively, Neurovit, European Egyptian Pharm. Ind., Egypt), two tablets per day

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Type 2 diabetes Patients as per ADA criteria.
* Patients were showing clinical signs of Diabetic neuropathy verified by a neurologist and confirmed by a score ≥7 on the MNSI questionnaire (Michigan Neuropathy Screening Instrument), with abnormal nerve conduction measurement.
* Patients on a regular visit to the clinic.

Exclusion Criteria

* Patients with neuropathy of non-diabetic origin were excluded.
* Patients with a BMI of 40 kg/m2 or more and those pregnant or breastfeeding were also excluded
Minimum Eligible Age

20 Years

Maximum Eligible Age

100 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Beni-Suef University

OTHER

Sponsor Role lead

Responsible Party

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Mahitab Hany Ahmed

Principle investigator (Assistant lecturer of clinical pharmacy department )

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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H F Salem, Professor

Role: STUDY_CHAIR

Beni-Suef University

Locations

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Beni Suef University faculty of pharmacy

Banī Suwayf, Beni Suweif Governorate, Egypt

Site Status

Countries

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Egypt

References

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Hipkiss AR. Glycation, ageing and carnosine: are carnivorous diets beneficial? Mech Ageing Dev. 2005 Oct;126(10):1034-9. doi: 10.1016/j.mad.2005.05.002.

Reference Type BACKGROUND
PMID: 15955546 (View on PubMed)

Oyenihi AB, Ayeleso AO, Mukwevho E, Masola B. Antioxidant strategies in the management of diabetic neuropathy. Biomed Res Int. 2015;2015:515042. doi: 10.1155/2015/515042. Epub 2015 Mar 2.

Reference Type RESULT
PMID: 25821809 (View on PubMed)

Edwards JL, Vincent AM, Cheng HT, Feldman EL. Diabetic neuropathy: mechanisms to management. Pharmacol Ther. 2008 Oct;120(1):1-34. doi: 10.1016/j.pharmthera.2008.05.005. Epub 2008 Jun 13.

Reference Type RESULT
PMID: 18616962 (View on PubMed)

Tesfaye S, Selvarajah D. Advances in the epidemiology, pathogenesis and management of diabetic peripheral neuropathy. Diabetes Metab Res Rev. 2012 Feb;28 Suppl 1:8-14. doi: 10.1002/dmrr.2239.

Reference Type RESULT
PMID: 22271716 (View on PubMed)

Vinik A I, "Diabetic Neuropathies," Contemp. Endocrinol. Controv. Treat. Diabetes Clin. Res. Asp.(2000), 109-134.

Reference Type RESULT

Callaghan BC, Cheng HT, Stables CL, Smith AL, Feldman EL. Diabetic neuropathy: clinical manifestations and current treatments. Lancet Neurol. 2012 Jun;11(6):521-34. doi: 10.1016/S1474-4422(12)70065-0. Epub 2012 May 16.

Reference Type RESULT
PMID: 22608666 (View on PubMed)

Shakher J, Stevens MJ. Update on the management of diabetic polyneuropathies. Diabetes Metab Syndr Obes. 2011;4:289-305. doi: 10.2147/DMSO.S11324. Epub 2011 Jul 21.

Reference Type RESULT
PMID: 21887102 (View on PubMed)

Jin HY, Park TS. Role of inflammatory biomarkers in diabetic peripheral neuropathy. J Diabetes Investig. 2018 Sep;9(5):1016-1018. doi: 10.1111/jdi.12794. Epub 2018 Jan 22.

Reference Type RESULT
PMID: 29277966 (View on PubMed)

Doupis J, Lyons TE, Wu S, Gnardellis C, Dinh T, Veves A. Microvascular reactivity and inflammatory cytokines in painful and painless peripheral diabetic neuropathy. J Clin Endocrinol Metab. 2009 Jun;94(6):2157-63. doi: 10.1210/jc.2008-2385. Epub 2009 Mar 10.

Reference Type RESULT
PMID: 19276232 (View on PubMed)

Hipkiss AR, Michaelis J, Syrris P. Non-enzymatic glycosylation of the dipeptide L-carnosine, a potential anti-protein-cross-linking agent. FEBS Lett. 1995 Aug 28;371(1):81-5. doi: 10.1016/0014-5793(95)00849-5.

Reference Type RESULT
PMID: 7664889 (View on PubMed)

Tsai SJ, Kuo WW, Liu WH, Yin MC. Antioxidative and anti-inflammatory protection from carnosine in the striatum of MPTP-treated mice. J Agric Food Chem. 2010 Nov 10;58(21):11510-6. doi: 10.1021/jf103258p. Epub 2010 Oct 6.

Reference Type RESULT
PMID: 20925384 (View on PubMed)

Other Identifiers

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Carnosine Diabetic neuropathy

Identifier Type: -

Identifier Source: org_study_id

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