Evidence map›Paper›PMID 38653887›Full record

Trial reportObesity surgery2024

Impact of Probiotics on Gastrointestinal Function and Metabolic Status After Roux-en-Y Gastric Bypass: A Double-Blind, Randomized Trial.

Hamid Melali, Alimeh Abdolahi, Erfan Sheikhbahaei, Kimia Vakili, Mohsen Mahmoudieh, Behrouz Keleidari, Shahab Shahabi

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Obesity surgery, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 3 pooled it
5.7field-weighted citation impact, top 4% 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

13 citing papers in PubMed, 3 syntheses or guidelines pooled it, 10 citations in OpenAlex.

  1. Pooled it
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  8. Review
  9. Article
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  12. The impact of probiotics on glycemic control during the first 3 months after sleeve gastrectomy: a prospective placebo‑controlled study.Wideochirurgia i inne techniki maloinwazyjne = Videosurgery and other miniinvasive techniques · 2025
    Article
  13. [Research progress of probiotics regulating intestinal micro-ecological environment in obese patients after bariatric surgery].Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences · 2024
    Review
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 4 institutions in 1 country.

Hamid MelaliIsfahan Minimally Invasive Surgery and Obesity Research Center, Department of Surgery, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
Alimeh AbdolahiDepartment of General Surgery, School of Medicine, Isfahan University of Medical Science, Isfahan, Iran.
Erfan SheikhbahaeiIsfahan Minimally Invasive Surgery and Obesity Research Center, Department of Surgery, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
Kimia VakiliStudent Research Committee, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Mohsen MahmoudiehIsfahan Minimally Invasive Surgery and Obesity Research Center, Department of Surgery, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
Behrouz KeleidariIsfahan Minimally Invasive Surgery and Obesity Research Center, Department of Surgery, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
Shahab ShahabiMinimally Invasive Surgery Research Center, Division of Minimally Invasive and Bariatric Surgery, Iran University of Medical Sciences, Hazrat-E Rasool General Hospital, Masouri St. Niyayesh St. Satarkhan Ave., Tehran, 14665-354, Iran. shshahabi@yahoo.com.ORCID 0000-0002-8415-2567
Isfahan University of Medical Sciences · IRIran University of Medical Sciences · IRShahid Beheshti University of Medical Sciences · IRUniversity of Isfahan · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposePostoperative changes in gut microbiota may occur in patients undergoing Roux-en-Y gastric bypass surgery. In this study, we evaluate the impact of administering probiotic tablets on the gastrointestinal function and metabolic status of these patients. MATERIALS AND

methodsThis double-blinded randomized clinical trial was conducted from 2021 to 2022 on 135 Roux-en-Y surgery candidates. The intervention group underwent the surgical procedure and started receiving probiotic supplements (Familact Co.) 1 week after surgery; the control group received a placebo. The laboratory and anthropometric data were measured and analyzed before and 3 and 6 months after the intervention. GIQLI questionnaire was also used at the beginning and 6 months after the intervention to evaluate GI symptoms.

resultsWe observed significantly reduced BMI in both groups after surgeries (P < 0.001). The levels of FBS and HbA1C were significantly lower in the probiotic group compared to the placebo in 3 months (P = 0.02 and P = 0.001, respectively) and 6 months (P < 0.001 for both) after the intervention. The levels of vitamin B12 increased significantly in the probiotic group (P < 0.001), and the values were substantially higher than the placebo group in 3 and 6 months (P < 0.001), respectively. Analysis of the GIQLI questionnaire before and 6 months after interventions also revealed significant improvement in the GIQLI score in both groups (P < 0.001 for probiotics and P = 0.03 for placebo).

conclusionProbiotic supplement administration following RYGB improves patients' vitamin and metabolic profile, as well as GI function, although it cannot significantly affect weight loss.

Indexed as

Gastric BypassObesity, MorbidProbioticsAdultBody Mass IndexDietary SupplementsDouble-Blind MethodFemaleGastrointestinal MicrobiomeHumansMaleMiddle AgedQuality of LifeTreatment OutcomeWeight LossBariatric surgeryClinical trialGut microbiotaObesityObesity surgeryProbiotic

Identifiers

PMID38653887
OpenAlexW4395027116

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.