Evidence map›Paper›PMID 26445645›Full record

ArticleTherapeutic advances in endocrinology and metabolism2015

Effect of Ramadan fasting in Saudi Arabia on serum bone profile and immunoglobulins.

Suhard M Bahijri, Ghada M Ajabnoor, Anwar Borai, Jumana Y Al-Aama, George P Chrousos

Open access · greenAbstract read
In one paragraph

Article in Therapeutic advances in endocrinology and metabolism, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 2 pooled it
1.3field-weighted citation impact, top 20% 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

23 citing papers in PubMed, 2 syntheses or guidelines pooled it, 39 citations in OpenAlex.

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  19. Cortical thickness, neurocognitive, and body composition effects of fasting during Ramadan.Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences · 2019
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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

5 authors at 2 institutions in 2 countries.

Suhard M BahijriDepartment of Clinical Biochemistry, Faculty of Medicine, Saudi Diabetes Research Group, King Fahd Medical Research Center, King Abdulaziz University, PO Box 4873, Jeddah 21412, Saudi Arabia.
Ghada M AjabnoorDepartment of Clinical Biochemistry, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia.
Anwar BoraiSaudi Diabetes Research Group, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia.
Jumana Y Al-AamaSaudi Diabetes Research Group, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia.
George P ChrousosSaudi Diabetes Research Group, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia.
King Abdulaziz University · SAChildren's Hospital Agia Sophia · GR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEach year Muslims fast from dawn to sunset for 1 month (Ramadan). In Saudi Arabia, the sleep-wake cycle during Ramadan is severely disturbed and is associated with abolition of the circadian cortisol rhythm, exposing Saudis to continuously increased cortisol levels, which may influence the immune response. In addition to cortisol, sleep and fasting affect the secretion of parathyroid hormone (PTH) and hence bone metabolism.

methodsOur objective was to investigate the effect of Ramadan type fasting on secretory patterns of PTH, markers of bone metabolism, and serum immunoglobulins. Blood samples from healthy young volunteers were collected at 9 a.m. and 9 p.m. (± 1 hour) before (Shaban) and 2 weeks into Ramadan. Calcium, phosphorus, magnesium, albumin, alkaline phosphatase, 25-OH vitamin D, intact PTH (iPTH), and immunoglobulin (Ig) A, M and G were measured.

resultsDuring Ramadan, evening-adjusted calcium was higher (p = 0.036) and phosphate lower (p < 0.001) than the corresponding morning value. Moreover, the Ramadan mean morning phosphate was higher and the evening level lower was than Shabaan values (p = 0.010 and p <0.001, respectively), while mean iPTH level was decreased compared with the morning value (p = 0.001), and the evening mean during Shabaan (p = 0.029). Mean IgG concentration was significantly lower during Ramadan (p = 0.003 and p = 0.021 for morning and evening, respectively).

conclusionsChanges in dietary practices during Ramadan modulated PTH secretion to a pattern which might be beneficial to bone health. Combined effects of fasting and disturbed sleep led to a noted decrease in IgG level. Therefore, a possible beneficial effect of fasting on bone turnover is combined with decreased immune response.

Indexed as

bone metabolismcortisolimmune responseimmunoglobulinsPTHRamadan fastingsleep–wake cycle

Identifiers

PMID26445645
PMCPMC4579416
OpenAlexW1821248785

What OpenQuestion holds

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Read underepoch 390

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.