Evidence map›Paper›PMID 32550202›Full record

ArticleJournal of diabetes and metabolic disorders2020

Metformin/Donepezil combination modulates brain antioxidant status and hippocampal endoplasmic reticulum stress in type 2 diabetic rats.

Tajudeen Olabisi Obafemi, Oluwaseun R Olasehinde, Oyindamola A Olaoye, Kikelomo F Jaiyesimi, Funmilayo D Adewumi, Olusola B Adewale, Blessing A Afolabi

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In one paragraph

Article in Journal of diabetes and metabolic disorders, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Tajudeen Olabisi ObafemiBiochemistry Programme, Department of Chemical Sciences, Afe Babalola University, Ado-Ekiti, PMB 5454 Nigeria.ORCID 0000-0001-8894-9365
Oluwaseun R OlasehindeMedical Biochemistry Unit, College of Health Sciences, Afe Babalola University, PMB 5454, Ado-Ekiti, Nigeria.
Oyindamola A OlaoyeBiochemistry Programme, Department of Chemical Sciences, Afe Babalola University, Ado-Ekiti, PMB 5454 Nigeria.
Kikelomo F JaiyesimiBiochemistry Programme, Department of Chemical Sciences, Afe Babalola University, Ado-Ekiti, PMB 5454 Nigeria.
Funmilayo D AdewumiIndustrial Chemistry Programme, Department of Chemical Sciences, Afe Babalola University, Ado-Ekiti, PMB 5454 Nigeria.
Olusola B AdewaleBiochemistry Programme, Department of Chemical Sciences, Afe Babalola University, Ado-Ekiti, PMB 5454 Nigeria.
Blessing A AfolabiDepartment of Biochemistry, Bowen University, Iwo, PMB 284 Nigeria.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeDiabetes mellitus is associated with perturbations in brain biochemical parameters associated with dementia. This study aimed at comparing the effect of metformin and metformin/donepezil combination on oxidative stress, endoplasmic reticulum stress and inflammation in the brain of diabetic Wistar rats.

methodsDiabetes was induced by single intraperitoneal injection of 40 mg/kg streptozotocin after administration of 10% fructose for 14 days. Animals were randomly assigned to four groups of five animals each. Group 1 was the normal control and received only distilled water. Groups 2 and 3 were diabetic rats treated with metformin/donepezil combination and metformin only respectively, while group 4 was diabetic control. Treatment lasted for 21 days after confirmation of diabetes. Activities of acetylcholinesterase (AchE), butyrylcholinesterase (BchE), superoxide dismutase (SOD), glutathione peroxidase (GPx) and catalase were evaluated in the brain of diabetic rats. Enzyme-linked immunosorbent assay was used to estimate brain levels of tumour necrosis factor-α (TNF-α), interleukin-6 (IL-6) malondialdehyde and glucose transporter-4 (GLUT4), while expression of endoplasmic reticulum stress markers - glucose regulated protein-78 (GRP78), activating transcription factor-4 (ATF4) and C/EBP homologous protein (CHOP) was determined using real-time PCR in the hippocampus of diabetic rats.

resultsTreatment with metformin/donepezil combination significantly reduced the activities of AchE, BchE as well as levels of malondialdehyde, TNF-α and IL-6, while the activities of SOD, GPx and catalase were significantly increased in the brain. Moreover, expression of ER stress markers was attenuated in the hippocampus.

conclusionMetformin/donepezil combination appeared more efficacious than metformin only and could be considered for managing diabetes-associated dementia.

Indexed as

AcetylcholinesteraseAntioxidantDementiaGlucoseInflammation

Identifiers

PMID32550202
PMCPMC7271310

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.