Evidence map›Paper›PMID 35620310›Full record

ArticleBiomedical reports2022

Correlation between vitamin D and serum brain derived neurotropic factor levels in type 2 diabetes mellitus patients.

Mohammad Alqudah, Mariam Khanfar, Mahmoud A Alfaqih, Othman Al-Shboul, Doa'A Ghazi Al-U'Datt, Ahmed Al-Dwairi, Mohammed Allouh

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Article in Biomedical reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.8field-weighted citation impact, top 37% of its field
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

3 citing papers in PubMed, 7 citations in OpenAlex.

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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 at 2 institutions in 2 countries.

Mohammad AlqudahDepartment of Physiology and Biochemistry, School of Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan.
Mariam KhanfarDepartment of Physiology and Biochemistry, School of Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan.
Mahmoud A AlfaqihDepartment of Physiology and Biochemistry, School of Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan.
Othman Al-ShboulDepartment of Physiology and Biochemistry, School of Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan.
Doa'A Ghazi Al-U'DattDepartment of Physiology and Biochemistry, School of Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan.
Ahmed Al-DwairiDepartment of Physiology and Biochemistry, School of Medicine, Jordan University of Science and Technology, Irbid 22110, Jordan.
Mohammed AllouhDepartment of Anatomy, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain 15551, United Arab Emirates.
Jordan University of Science and Technology · JOUnited Arab Emirates University · AE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Diabetes Mellitus (DM) currently ranks as the most common endocrine disorder worldwide. Current opinion views DM as a group of heterogeneous metabolic diseases characterized by hyperglycemia triggered by defects in the ability of the body to produce or use insulin in type 1 and 2 DM, respectively. Brain-derived neurotrophic factor (BDNF), one of the neurotrophin family of growth factors, has been linked to the pathogenesis of DM and insulin resistance. Moreover, vitamin D has been associated with insulin resistance and DM. Recently, the interactions between vitamin D and BDNF have been investigated in diabetic rats. However, this correlation has never been investigated in humans. Thus, the aim of the present study was to assess the alterations in serum BDNF and vitamin D levels in T2DM patients in Jordan, prior to and following vitamin D supplementation. A combination of non-experimental case-control and experimental designed studies were utilized to assess the relationship between serum BDNF and vitamin D levels in T2DM patients. The levels of BDNF and vitamin D were measured using commercially available ELISA kits, and fasting blood glucose (FBG) and HbA1c levels were measured in medical labs. The results showed that diabetic patients had lower levels of serum vitamin D and higher levels of BDNF compared with the healthy controls. Moreover, linear regression analysis indicated that BDNF levels were inversely correlated with serum vitamin D levels. Furthermore, vitamin D supplementation significantly increased vitamin D serum levels and decreased BDNF serum levels in diabetic patients. Intriguingly, FBG and HbA1c levels were significantly improved post vitamin D supplementation. These data demonstrate a positive effect of vitamin D supplementation in diabetic patients suggesting the implementation of vitamin D as part of future T2DM treatment plans. However, additional studies are needed to investigate the direct link between vitamin D, BDNF, and T2DM.

Indexed as

brain-derived neurotropic factortype 2 diabetes mellitusvitamin D

Identifiers

PMID35620310
PMCPMC9112377
OpenAlexW4229022247

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Registered trials

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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.