Evidence map›Paper›PMID 38951946›Full record

ArticleBMC nutrition2024

Dietary acid load as well as dietary phytochemical index, and association with multiple sclerosis: results from a case-control study.

Alireza Hatami, Maryam Ahmadi-Khorram, Fatemeh Keykhaei, Mohtaram Hashemi, Reihane Javid, Mehrara Hashempour, Ali Jafarzadeh Esfehani, Mohsen Nematy

Abstract read
In one paragraph

Article in BMC nutrition, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

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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

2 citing papers in PubMed.

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4 · The record

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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

8 authors.

Alireza HatamiDepartment of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, 91779-48564, Iran.
Maryam Ahmadi-KhorramDepartment of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, 91779-48564, Iran.
Fatemeh KeykhaeiDepartment of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, 91779-48564, Iran.
Mohtaram HashemiStudent Research Committee, Semnan University of Medical Sciences, Semnan, Iran.
Reihane JavidStudent Research Committee, Semnan University of Medical Sciences, Semnan, Iran.
Mehrara HashempourDepartment of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, 91779-48564, Iran.
Ali Jafarzadeh EsfehaniMetabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. JafarzadehEA982@mums.ac.ir.
Mohsen NematyDepartment of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, 91779-48564, Iran. NematyM@mums.ac.ir.ORCID http://orcid.org/0000-0003-3202-2709

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionMultiple sclerosis (MS) is a chronic inflammatory disease characterized by central nervous system (CNS) lesions. Although the etiology and pathogenesis of MS remains unclear, nutrition is among the environmental factors that may be involved in developing MS. Currently, no specific diet has been associated with MS. This study aimed to investigate the relationship between the dietary phytochemical index (DPI), dietary acid load (DAL), and the risk of developing MS.

methodsThis case‒control study was conducted on 174 patients with MS and 171 healthy individuals in Mashhad, Iran. Data were collected using a 160-item semiquantitative food frequency questionnaire (FFQ). The study investigated the association between DPI, DAL, and MS, considering anthropometric measures, dietary intake, smoking habits, and sex. DPI, potential renal acid load (PRAL), and net endogenous acid production (NEAP), as indicators of DAL, were calculated based on the FFQ.

resultsThe study analyzed 345 participants, comprising 174 (50.4%) MS patients and 171 (49.6%) healthy individuals. The mean age of the participants was 32.45 ± 8.66 years. The DPI score was significantly lower among MS patients, while the NEAP and PRAL scores were significantly higher among MS patients compared to the healthy group. There was no relationship between NEAP (OR 1.001; 95% CI 0.959-1.044; P = 0.974) and PRAL (OR 1.019; 95% CI 0.979-1.061; P = 0.356) and MS incidence.

conclusionsThe study found higher smoking and obesity rates in MS patients, with a reduced DPI score and increased DAL. Further studies are needed before recommending plant-based foods and dietary acid-base balance evaluation as therapeutic approach.

Indexed as

Autoimmune diseasesDietary acid loadFood frequency questionnaireInflammationIranMultiple sclerosisNeurodegenerationPhytochemicals index

Identifiers

PMID38951946
PMCPMC11218216

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