Effects of vitamin D3 supplementation on clinical symptoms, quality of life, serum serotonin (5-hydroxytryptamine), 5-hydroxy-indole acetic acid, and ratio of 5-HIAA/5-HT in patients with diarrhea-predominant irritable bowel syndrome: A randomized clinical trial Article Swipe
YOU?
·
· 2020
· Open Access
·
· DOI: https://doi.org/10.17179/excli2020-2247
Vitamin D deficiency, common in the population with irritable bowel syndrome (IBS), can induce the main factors that lead to IBS clinical symptoms, such as depression, anxiety, and inflammation. Serotonin (5-HT) plays an important role in the pathophysiology of IBS, and its production and secretion are increased from the lumen due to stress and inflammation. The aim of this study was to evaluate the effect of vitamin D3 supplementation on the pathogenesis of diarrhea-predominant IBS (IBS-D). Seventy-four IBS-D patients (age: 18-65 y) participated in a randomized, double-blind, placebo-controlled trial study from February 2017 to May 2018, at Rasoul-e-Akram Hospital, Tehran, Iran. Subjects were allocated into two groups receiving 50,000 IU/week of vitamin D3 or placebo for 9 weeks. IBS severity score system (IBS-SSS), IBS-quality of life questionnaire (QoL), hospital anxiety and depression Scale (HADs), visceral sensitivity index (VSI) and serum 25(OH) vitamin D3, serotonin, 5-hydroxy-indole acetic acid and ratio of 5-HIAA/5-HT were evaluated before and after the interventions. Symptoms severity, QoL, HADs-depression, and VSI score improved significantly in the vitamin D group as compared to the placebo group (P-values: <0.001, 0.049, 0.023, and 0.008; respectively). There were no significant differences in abdominal bloating, HADs-anxiety, serum 5-HT, 5-HIAA, and 5-HIAA/5-HT between the two groups at the end of the study. Based on our results, we recommend serum vitamin D be evaluated in the process of treatment of these patients to ameliorate symptoms and quality life of IBS-D patients with vitamin D deficiency and/or insufficiency.
Related Topics
- Type
- article
- Language
- en
- Landing Page
- https://pubmed.ncbi.nlm.nih.gov/33013260
- OA Status
- green
- Cited By
- 23
- References
- 69
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W3089904173
Raw OpenAlex JSON
- OpenAlex ID
-
https://openalex.org/W3089904173Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.17179/excli2020-2247Digital Object Identifier
- Title
-
Effects of vitamin D3 supplementation on clinical symptoms, quality of life, serum serotonin (5-hydroxytryptamine), 5-hydroxy-indole acetic acid, and ratio of 5-HIAA/5-HT in patients with diarrhea-predominant irritable bowel syndrome: A randomized clinical trialWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2020Year of publication
- Publication date
-
2020-04-06Full publication date if available
- Authors
-
Masoumeh Khalighi Sikaroudi, Marjan Mokhtare, Farzad Shidfar, Leila Janani, Amirhossein Faghihi Kashani, Mohsen Masoodi, Shahram Agah, Afsaneh Dehnad, Shahrzad ShidfarList of authors in order
- Landing page
-
https://pubmed.ncbi.nlm.nih.gov/33013260Publisher landing page
- Open access
-
YesWhether a free full text is available
- OA status
-
greenOpen access status per OpenAlex
- OA URL
-
https://doi.org/10.17179/excli2020-2247Direct OA link when available
- Concepts
-
Medicine, Gastroenterology, Internal medicine, Placebo, Vitamin D and neurology, Vitamin, Population, Anxiety, Bloating, Diarrhea, Psychiatry, Pathology, Alternative medicine, Environmental healthTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
23Total citation count in OpenAlex
- Citations by year (recent)
-
2025: 2, 2024: 6, 2023: 4, 2022: 6, 2021: 5Per-year citation counts (last 5 years)
- References (count)
-
69Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
Full payload
| id | https://openalex.org/W3089904173 |
|---|---|
| doi | https://doi.org/10.17179/excli2020-2247 |
| ids.doi | https://doi.org/10.17179/excli2020-2247 |
| ids.mag | 3089904173 |
| ids.pmid | https://pubmed.ncbi.nlm.nih.gov/33013260 |
| ids.openalex | https://openalex.org/W3089904173 |
| fwci | 3.05529558 |
| type | article |
| title | Effects of vitamin D3 supplementation on clinical symptoms, quality of life, serum serotonin (5-hydroxytryptamine), 5-hydroxy-indole acetic acid, and ratio of 5-HIAA/5-HT in patients with diarrhea-predominant irritable bowel syndrome: A randomized clinical trial |
| biblio.issue | |
| biblio.volume | 19 |
| biblio.last_page | 667 |
| biblio.first_page | 652 |
| topics[0].id | https://openalex.org/T10365 |
| topics[0].field.id | https://openalex.org/fields/27 |
| topics[0].field.display_name | Medicine |
| topics[0].score | 0.9994000196456909 |
| topics[0].domain.id | https://openalex.org/domains/4 |
| topics[0].domain.display_name | Health Sciences |
| topics[0].subfield.id | https://openalex.org/subfields/2715 |
| topics[0].subfield.display_name | Gastroenterology |
| topics[0].display_name | Gastrointestinal motility and disorders |
| topics[1].id | https://openalex.org/T11768 |
| topics[1].field.id | https://openalex.org/fields/32 |
| topics[1].field.display_name | Psychology |
| topics[1].score | 0.9944000244140625 |
| topics[1].domain.id | https://openalex.org/domains/2 |
| topics[1].domain.display_name | Social Sciences |
| topics[1].subfield.id | https://openalex.org/subfields/3207 |
| topics[1].subfield.display_name | Social Psychology |
| topics[1].display_name | Music Therapy and Health |
| topics[2].id | https://openalex.org/T13108 |
| topics[2].field.id | https://openalex.org/fields/36 |
| topics[2].field.display_name | Health Professions |
| topics[2].score | 0.9868999719619751 |
| topics[2].domain.id | https://openalex.org/domains/4 |
| topics[2].domain.display_name | Health Sciences |
| topics[2].subfield.id | https://openalex.org/subfields/3603 |
| topics[2].subfield.display_name | Complementary and Manual Therapy |
| topics[2].display_name | Therapeutic Uses of Natural Elements |
| is_xpac | False |
| apc_list | |
| apc_paid | |
| concepts[0].id | https://openalex.org/C71924100 |
| concepts[0].level | 0 |
| concepts[0].score | 0.7212382555007935 |
| concepts[0].wikidata | https://www.wikidata.org/wiki/Q11190 |
| concepts[0].display_name | Medicine |
| concepts[1].id | https://openalex.org/C90924648 |
| concepts[1].level | 1 |
| concepts[1].score | 0.6379334926605225 |
| concepts[1].wikidata | https://www.wikidata.org/wiki/Q120569 |
| concepts[1].display_name | Gastroenterology |
| concepts[2].id | https://openalex.org/C126322002 |
| concepts[2].level | 1 |
| concepts[2].score | 0.6331307291984558 |
| concepts[2].wikidata | https://www.wikidata.org/wiki/Q11180 |
| concepts[2].display_name | Internal medicine |
| concepts[3].id | https://openalex.org/C27081682 |
| concepts[3].level | 3 |
| concepts[3].score | 0.5405626893043518 |
| concepts[3].wikidata | https://www.wikidata.org/wiki/Q269829 |
| concepts[3].display_name | Placebo |
| concepts[4].id | https://openalex.org/C124490489 |
| concepts[4].level | 2 |
| concepts[4].score | 0.499953031539917 |
| concepts[4].wikidata | https://www.wikidata.org/wiki/Q7936963 |
| concepts[4].display_name | Vitamin D and neurology |
| concepts[5].id | https://openalex.org/C2776940978 |
| concepts[5].level | 2 |
| concepts[5].score | 0.4461716115474701 |
| concepts[5].wikidata | https://www.wikidata.org/wiki/Q34956 |
| concepts[5].display_name | Vitamin |
| concepts[6].id | https://openalex.org/C2908647359 |
| concepts[6].level | 2 |
| concepts[6].score | 0.4435373544692993 |
| concepts[6].wikidata | https://www.wikidata.org/wiki/Q2625603 |
| concepts[6].display_name | Population |
| concepts[7].id | https://openalex.org/C558461103 |
| concepts[7].level | 2 |
| concepts[7].score | 0.4236566424369812 |
| concepts[7].wikidata | https://www.wikidata.org/wiki/Q154430 |
| concepts[7].display_name | Anxiety |
| concepts[8].id | https://openalex.org/C2776956441 |
| concepts[8].level | 3 |
| concepts[8].score | 0.4205770492553711 |
| concepts[8].wikidata | https://www.wikidata.org/wiki/Q4927059 |
| concepts[8].display_name | Bloating |
| concepts[9].id | https://openalex.org/C2779802037 |
| concepts[9].level | 2 |
| concepts[9].score | 0.41497108340263367 |
| concepts[9].wikidata | https://www.wikidata.org/wiki/Q40878 |
| concepts[9].display_name | Diarrhea |
| concepts[10].id | https://openalex.org/C118552586 |
| concepts[10].level | 1 |
| concepts[10].score | 0.12014120817184448 |
| concepts[10].wikidata | https://www.wikidata.org/wiki/Q7867 |
| concepts[10].display_name | Psychiatry |
| concepts[11].id | https://openalex.org/C142724271 |
| concepts[11].level | 1 |
| concepts[11].score | 0.08280932903289795 |
| concepts[11].wikidata | https://www.wikidata.org/wiki/Q7208 |
| concepts[11].display_name | Pathology |
| concepts[12].id | https://openalex.org/C204787440 |
| concepts[12].level | 2 |
| concepts[12].score | 0.0 |
| concepts[12].wikidata | https://www.wikidata.org/wiki/Q188504 |
| concepts[12].display_name | Alternative medicine |
| concepts[13].id | https://openalex.org/C99454951 |
| concepts[13].level | 1 |
| concepts[13].score | 0.0 |
| concepts[13].wikidata | https://www.wikidata.org/wiki/Q932068 |
| concepts[13].display_name | Environmental health |
| keywords[0].id | https://openalex.org/keywords/medicine |
| keywords[0].score | 0.7212382555007935 |
| keywords[0].display_name | Medicine |
| keywords[1].id | https://openalex.org/keywords/gastroenterology |
| keywords[1].score | 0.6379334926605225 |
| keywords[1].display_name | Gastroenterology |
| keywords[2].id | https://openalex.org/keywords/internal-medicine |
| keywords[2].score | 0.6331307291984558 |
| keywords[2].display_name | Internal medicine |
| keywords[3].id | https://openalex.org/keywords/placebo |
| keywords[3].score | 0.5405626893043518 |
| keywords[3].display_name | Placebo |
| keywords[4].id | https://openalex.org/keywords/vitamin-d-and-neurology |
| keywords[4].score | 0.499953031539917 |
| keywords[4].display_name | Vitamin D and neurology |
| keywords[5].id | https://openalex.org/keywords/vitamin |
| keywords[5].score | 0.4461716115474701 |
| keywords[5].display_name | Vitamin |
| keywords[6].id | https://openalex.org/keywords/population |
| keywords[6].score | 0.4435373544692993 |
| keywords[6].display_name | Population |
| keywords[7].id | https://openalex.org/keywords/anxiety |
| keywords[7].score | 0.4236566424369812 |
| keywords[7].display_name | Anxiety |
| keywords[8].id | https://openalex.org/keywords/bloating |
| keywords[8].score | 0.4205770492553711 |
| keywords[8].display_name | Bloating |
| keywords[9].id | https://openalex.org/keywords/diarrhea |
| keywords[9].score | 0.41497108340263367 |
| keywords[9].display_name | Diarrhea |
| keywords[10].id | https://openalex.org/keywords/psychiatry |
| keywords[10].score | 0.12014120817184448 |
| keywords[10].display_name | Psychiatry |
| keywords[11].id | https://openalex.org/keywords/pathology |
| keywords[11].score | 0.08280932903289795 |
| keywords[11].display_name | Pathology |
| language | en |
| locations[0].id | pmid:33013260 |
| locations[0].is_oa | False |
| locations[0].source.id | https://openalex.org/S4306525036 |
| locations[0].source.issn | |
| locations[0].source.type | repository |
| locations[0].source.is_oa | False |
| locations[0].source.issn_l | |
| locations[0].source.is_core | False |
| locations[0].source.is_in_doaj | False |
| locations[0].source.display_name | PubMed |
| locations[0].source.host_organization | https://openalex.org/I1299303238 |
| locations[0].source.host_organization_name | National Institutes of Health |
| locations[0].source.host_organization_lineage | https://openalex.org/I1299303238 |
| locations[0].license | |
| locations[0].pdf_url | |
| locations[0].version | publishedVersion |
| locations[0].raw_type | |
| locations[0].license_id | |
| locations[0].is_accepted | True |
| locations[0].is_published | True |
| locations[0].raw_source_name | EXCLI journal |
| locations[0].landing_page_url | https://pubmed.ncbi.nlm.nih.gov/33013260 |
| locations[1].id | doi:10.17179/excli2020-2247 |
| locations[1].is_oa | True |
| locations[1].source.id | https://openalex.org/S7407053513 |
| locations[1].source.type | repository |
| locations[1].source.is_oa | False |
| locations[1].source.issn_l | |
| locations[1].source.is_core | False |
| locations[1].source.is_in_doaj | False |
| locations[1].source.display_name | Leibniz-Institut für Arbeitsforschung an der TU Dortmund (IfADo) |
| locations[1].source.host_organization | |
| locations[1].source.host_organization_name | |
| locations[1].license | |
| locations[1].pdf_url | |
| locations[1].version | |
| locations[1].raw_type | article-journal |
| locations[1].license_id | |
| locations[1].is_accepted | False |
| locations[1].is_published | |
| locations[1].raw_source_name | |
| locations[1].landing_page_url | https://doi.org/10.17179/excli2020-2247 |
| indexed_in | datacite, pubmed |
| authorships[0].author.id | https://openalex.org/A5080945293 |
| authorships[0].author.orcid | https://orcid.org/0000-0002-1829-4591 |
| authorships[0].author.display_name | Masoumeh Khalighi Sikaroudi |
| authorships[0].countries | IR |
| authorships[0].affiliations[0].institution_ids | https://openalex.org/I161106909 |
| authorships[0].affiliations[0].raw_affiliation_string | Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran. |
| authorships[0].institutions[0].id | https://openalex.org/I161106909 |
| authorships[0].institutions[0].ror | https://ror.org/03w04rv71 |
| authorships[0].institutions[0].type | education |
| authorships[0].institutions[0].lineage | https://openalex.org/I161106909 |
| authorships[0].institutions[0].country_code | IR |
| authorships[0].institutions[0].display_name | Iran University of Medical Sciences |
| authorships[0].author_position | first |
| authorships[0].raw_author_name | Masoumeh Khalighi Sikaroudi |
| authorships[0].is_corresponding | False |
| authorships[0].raw_affiliation_strings | Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran. |
| authorships[1].author.id | https://openalex.org/A5005595987 |
| authorships[1].author.orcid | https://orcid.org/0000-0002-4869-9442 |
| authorships[1].author.display_name | Marjan Mokhtare |
| authorships[1].countries | IR |
| authorships[1].affiliations[0].institution_ids | https://openalex.org/I161106909, https://openalex.org/I4210094544 |
| authorships[1].affiliations[0].raw_affiliation_string | Colorectal Research Center, Rasoul-e-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran. |
| authorships[1].institutions[0].id | https://openalex.org/I161106909 |
| authorships[1].institutions[0].ror | https://ror.org/03w04rv71 |
| authorships[1].institutions[0].type | education |
| authorships[1].institutions[0].lineage | https://openalex.org/I161106909 |
| authorships[1].institutions[0].country_code | IR |
| authorships[1].institutions[0].display_name | Iran University of Medical Sciences |
| authorships[1].institutions[1].id | https://openalex.org/I4210094544 |
| authorships[1].institutions[1].ror | https://ror.org/00kh76710 |
| authorships[1].institutions[1].type | healthcare |
| authorships[1].institutions[1].lineage | https://openalex.org/I4210094544 |
| authorships[1].institutions[1].country_code | IR |
| authorships[1].institutions[1].display_name | Rasool Akram Hospital |
| authorships[1].author_position | middle |
| authorships[1].raw_author_name | Marjan Mokhtare |
| authorships[1].is_corresponding | False |
| authorships[1].raw_affiliation_strings | Colorectal Research Center, Rasoul-e-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran. |
| authorships[2].author.id | https://openalex.org/A5060025470 |
| authorships[2].author.orcid | https://orcid.org/0000-0002-6531-9253 |
| authorships[2].author.display_name | Farzad Shidfar |
| authorships[2].countries | IR |
| authorships[2].affiliations[0].institution_ids | https://openalex.org/I161106909 |
| authorships[2].affiliations[0].raw_affiliation_string | Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran. |
| authorships[2].affiliations[1].institution_ids | https://openalex.org/I161106909, https://openalex.org/I4210094544 |
| authorships[2].affiliations[1].raw_affiliation_string | Colorectal Research Center, Rasoul-e-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran. |
| authorships[2].institutions[0].id | https://openalex.org/I161106909 |
| authorships[2].institutions[0].ror | https://ror.org/03w04rv71 |
| authorships[2].institutions[0].type | education |
| authorships[2].institutions[0].lineage | https://openalex.org/I161106909 |
| authorships[2].institutions[0].country_code | IR |
| authorships[2].institutions[0].display_name | Iran University of Medical Sciences |
| authorships[2].institutions[1].id | https://openalex.org/I4210094544 |
| authorships[2].institutions[1].ror | https://ror.org/00kh76710 |
| authorships[2].institutions[1].type | healthcare |
| authorships[2].institutions[1].lineage | https://openalex.org/I4210094544 |
| authorships[2].institutions[1].country_code | IR |
| authorships[2].institutions[1].display_name | Rasool Akram Hospital |
| authorships[2].author_position | middle |
| authorships[2].raw_author_name | Farzad Shidfar |
| authorships[2].is_corresponding | False |
| authorships[2].raw_affiliation_strings | Colorectal Research Center, Rasoul-e-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran., Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran. |
| authorships[3].author.id | https://openalex.org/A5029309701 |
| authorships[3].author.orcid | https://orcid.org/0000-0003-3829-6364 |
| authorships[3].author.display_name | Leila Janani |
| authorships[3].countries | IR |
| authorships[3].affiliations[0].institution_ids | https://openalex.org/I161106909 |
| authorships[3].affiliations[0].raw_affiliation_string | Department of Biostatistics, School of Public Health, Iran University of Medical Sciences, Tehran, Iran. |
| authorships[3].institutions[0].id | https://openalex.org/I161106909 |
| authorships[3].institutions[0].ror | https://ror.org/03w04rv71 |
| authorships[3].institutions[0].type | education |
| authorships[3].institutions[0].lineage | https://openalex.org/I161106909 |
| authorships[3].institutions[0].country_code | IR |
| authorships[3].institutions[0].display_name | Iran University of Medical Sciences |
| authorships[3].author_position | middle |
| authorships[3].raw_author_name | Leila Janani |
| authorships[3].is_corresponding | False |
| authorships[3].raw_affiliation_strings | Department of Biostatistics, School of Public Health, Iran University of Medical Sciences, Tehran, Iran. |
| authorships[4].author.id | https://openalex.org/A5025653046 |
| authorships[4].author.orcid | https://orcid.org/0000-0002-1667-1875 |
| authorships[4].author.display_name | Amirhossein Faghihi Kashani |
| authorships[4].countries | IR |
| authorships[4].affiliations[0].institution_ids | https://openalex.org/I161106909, https://openalex.org/I4210094544 |
| authorships[4].affiliations[0].raw_affiliation_string | Colorectal Research Center, Rasoul-e-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran. |
| authorships[4].institutions[0].id | https://openalex.org/I161106909 |
| authorships[4].institutions[0].ror | https://ror.org/03w04rv71 |
| authorships[4].institutions[0].type | education |
| authorships[4].institutions[0].lineage | https://openalex.org/I161106909 |
| authorships[4].institutions[0].country_code | IR |
| authorships[4].institutions[0].display_name | Iran University of Medical Sciences |
| authorships[4].institutions[1].id | https://openalex.org/I4210094544 |
| authorships[4].institutions[1].ror | https://ror.org/00kh76710 |
| authorships[4].institutions[1].type | healthcare |
| authorships[4].institutions[1].lineage | https://openalex.org/I4210094544 |
| authorships[4].institutions[1].country_code | IR |
| authorships[4].institutions[1].display_name | Rasool Akram Hospital |
| authorships[4].author_position | middle |
| authorships[4].raw_author_name | AmirHossein Faghihi Kashani |
| authorships[4].is_corresponding | False |
| authorships[4].raw_affiliation_strings | Colorectal Research Center, Rasoul-e-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran. |
| authorships[5].author.id | https://openalex.org/A5037009737 |
| authorships[5].author.orcid | https://orcid.org/0000-0001-8471-9220 |
| authorships[5].author.display_name | Mohsen Masoodi |
| authorships[5].countries | IR |
| authorships[5].affiliations[0].institution_ids | https://openalex.org/I161106909, https://openalex.org/I4210094544 |
| authorships[5].affiliations[0].raw_affiliation_string | Colorectal Research Center, Rasoul-e-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran. |
| authorships[5].institutions[0].id | https://openalex.org/I161106909 |
| authorships[5].institutions[0].ror | https://ror.org/03w04rv71 |
| authorships[5].institutions[0].type | education |
| authorships[5].institutions[0].lineage | https://openalex.org/I161106909 |
| authorships[5].institutions[0].country_code | IR |
| authorships[5].institutions[0].display_name | Iran University of Medical Sciences |
| authorships[5].institutions[1].id | https://openalex.org/I4210094544 |
| authorships[5].institutions[1].ror | https://ror.org/00kh76710 |
| authorships[5].institutions[1].type | healthcare |
| authorships[5].institutions[1].lineage | https://openalex.org/I4210094544 |
| authorships[5].institutions[1].country_code | IR |
| authorships[5].institutions[1].display_name | Rasool Akram Hospital |
| authorships[5].author_position | middle |
| authorships[5].raw_author_name | Mohsen Masoodi |
| authorships[5].is_corresponding | False |
| authorships[5].raw_affiliation_strings | Colorectal Research Center, Rasoul-e-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran. |
| authorships[6].author.id | https://openalex.org/A5006349952 |
| authorships[6].author.orcid | https://orcid.org/0000-0002-5269-4644 |
| authorships[6].author.display_name | Shahram Agah |
| authorships[6].countries | IR |
| authorships[6].affiliations[0].institution_ids | https://openalex.org/I161106909, https://openalex.org/I4210094544 |
| authorships[6].affiliations[0].raw_affiliation_string | Colorectal Research Center, Rasoul-e-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran. |
| authorships[6].institutions[0].id | https://openalex.org/I161106909 |
| authorships[6].institutions[0].ror | https://ror.org/03w04rv71 |
| authorships[6].institutions[0].type | education |
| authorships[6].institutions[0].lineage | https://openalex.org/I161106909 |
| authorships[6].institutions[0].country_code | IR |
| authorships[6].institutions[0].display_name | Iran University of Medical Sciences |
| authorships[6].institutions[1].id | https://openalex.org/I4210094544 |
| authorships[6].institutions[1].ror | https://ror.org/00kh76710 |
| authorships[6].institutions[1].type | healthcare |
| authorships[6].institutions[1].lineage | https://openalex.org/I4210094544 |
| authorships[6].institutions[1].country_code | IR |
| authorships[6].institutions[1].display_name | Rasool Akram Hospital |
| authorships[6].author_position | middle |
| authorships[6].raw_author_name | Shahram Agah |
| authorships[6].is_corresponding | False |
| authorships[6].raw_affiliation_strings | Colorectal Research Center, Rasoul-e-Akram Hospital, Iran University of Medical Sciences, Tehran, Iran. |
| authorships[7].author.id | https://openalex.org/A5071340374 |
| authorships[7].author.orcid | https://orcid.org/0000-0001-5731-8894 |
| authorships[7].author.display_name | Afsaneh Dehnad |
| authorships[7].countries | IR |
| authorships[7].affiliations[0].institution_ids | https://openalex.org/I161106909 |
| authorships[7].affiliations[0].raw_affiliation_string | Department of English Language, School of Health Management and Information Sciences, Iran University of Medical Sciences, Tehran, Iran. |
| authorships[7].institutions[0].id | https://openalex.org/I161106909 |
| authorships[7].institutions[0].ror | https://ror.org/03w04rv71 |
| authorships[7].institutions[0].type | education |
| authorships[7].institutions[0].lineage | https://openalex.org/I161106909 |
| authorships[7].institutions[0].country_code | IR |
| authorships[7].institutions[0].display_name | Iran University of Medical Sciences |
| authorships[7].author_position | middle |
| authorships[7].raw_author_name | Afsaneh Dehnad |
| authorships[7].is_corresponding | False |
| authorships[7].raw_affiliation_strings | Department of English Language, School of Health Management and Information Sciences, Iran University of Medical Sciences, Tehran, Iran. |
| authorships[8].author.id | https://openalex.org/A5006279992 |
| authorships[8].author.orcid | |
| authorships[8].author.display_name | Shahrzad Shidfar |
| authorships[8].countries | US |
| authorships[8].affiliations[0].institution_ids | https://openalex.org/I2799713793 |
| authorships[8].affiliations[0].raw_affiliation_string | Worcester Memorial Hospital, University of Massachusetts, Worcester, U.S.A. |
| authorships[8].institutions[0].id | https://openalex.org/I2799713793 |
| authorships[8].institutions[0].ror | https://ror.org/0132qa516 |
| authorships[8].institutions[0].type | healthcare |
| authorships[8].institutions[0].lineage | https://openalex.org/I2799713793 |
| authorships[8].institutions[0].country_code | US |
| authorships[8].institutions[0].display_name | Worcester Memorial Hospital |
| authorships[8].author_position | last |
| authorships[8].raw_author_name | Shahrzad Shidfar |
| authorships[8].is_corresponding | False |
| authorships[8].raw_affiliation_strings | Worcester Memorial Hospital, University of Massachusetts, Worcester, U.S.A. |
| has_content.pdf | False |
| has_content.grobid_xml | False |
| is_paratext | False |
| open_access.is_oa | True |
| open_access.oa_url | https://doi.org/10.17179/excli2020-2247 |
| open_access.oa_status | green |
| open_access.any_repository_has_fulltext | False |
| created_date | 2025-10-10T00:00:00 |
| display_name | Effects of vitamin D3 supplementation on clinical symptoms, quality of life, serum serotonin (5-hydroxytryptamine), 5-hydroxy-indole acetic acid, and ratio of 5-HIAA/5-HT in patients with diarrhea-predominant irritable bowel syndrome: A randomized clinical trial |
| has_fulltext | False |
| is_retracted | False |
| updated_date | 2025-11-06T06:51:31.235846 |
| primary_topic.id | https://openalex.org/T10365 |
| primary_topic.field.id | https://openalex.org/fields/27 |
| primary_topic.field.display_name | Medicine |
| primary_topic.score | 0.9994000196456909 |
| primary_topic.domain.id | https://openalex.org/domains/4 |
| primary_topic.domain.display_name | Health Sciences |
| primary_topic.subfield.id | https://openalex.org/subfields/2715 |
| primary_topic.subfield.display_name | Gastroenterology |
| primary_topic.display_name | Gastrointestinal motility and disorders |
| related_works | https://openalex.org/W2977482522, https://openalex.org/W2978565435, https://openalex.org/W2978787633, https://openalex.org/W1509755737, https://openalex.org/W2062882054, https://openalex.org/W2977245174, https://openalex.org/W4307500928, https://openalex.org/W2121080036, https://openalex.org/W2115434474, https://openalex.org/W2145190142 |
| cited_by_count | 23 |
| counts_by_year[0].year | 2025 |
| counts_by_year[0].cited_by_count | 2 |
| counts_by_year[1].year | 2024 |
| counts_by_year[1].cited_by_count | 6 |
| counts_by_year[2].year | 2023 |
| counts_by_year[2].cited_by_count | 4 |
| counts_by_year[3].year | 2022 |
| counts_by_year[3].cited_by_count | 6 |
| counts_by_year[4].year | 2021 |
| counts_by_year[4].cited_by_count | 5 |
| locations_count | 2 |
| best_oa_location.id | doi:10.17179/excli2020-2247 |
| best_oa_location.is_oa | True |
| best_oa_location.source.id | https://openalex.org/S7407053513 |
| best_oa_location.source.type | repository |
| best_oa_location.source.is_oa | False |
| best_oa_location.source.issn_l | |
| best_oa_location.source.is_core | False |
| best_oa_location.source.is_in_doaj | False |
| best_oa_location.source.display_name | Leibniz-Institut für Arbeitsforschung an der TU Dortmund (IfADo) |
| best_oa_location.source.host_organization | |
| best_oa_location.source.host_organization_name | |
| best_oa_location.license | |
| best_oa_location.pdf_url | |
| best_oa_location.version | |
| best_oa_location.raw_type | article-journal |
| best_oa_location.license_id | |
| best_oa_location.is_accepted | False |
| best_oa_location.is_published | False |
| best_oa_location.raw_source_name | |
| best_oa_location.landing_page_url | https://doi.org/10.17179/excli2020-2247 |
| primary_location.id | pmid:33013260 |
| primary_location.is_oa | False |
| primary_location.source.id | https://openalex.org/S4306525036 |
| primary_location.source.issn | |
| primary_location.source.type | repository |
| primary_location.source.is_oa | False |
| primary_location.source.issn_l | |
| primary_location.source.is_core | False |
| primary_location.source.is_in_doaj | False |
| primary_location.source.display_name | PubMed |
| primary_location.source.host_organization | https://openalex.org/I1299303238 |
| primary_location.source.host_organization_name | National Institutes of Health |
| primary_location.source.host_organization_lineage | https://openalex.org/I1299303238 |
| primary_location.license | |
| primary_location.pdf_url | |
| primary_location.version | publishedVersion |
| primary_location.raw_type | |
| primary_location.license_id | |
| primary_location.is_accepted | True |
| primary_location.is_published | True |
| primary_location.raw_source_name | EXCLI journal |
| primary_location.landing_page_url | https://pubmed.ncbi.nlm.nih.gov/33013260 |
| publication_date | 2020-04-06 |
| publication_year | 2020 |
| referenced_works | https://openalex.org/W84621281, https://openalex.org/W2056304431, https://openalex.org/W1532990492, https://openalex.org/W2132910924, https://openalex.org/W2149248302, https://openalex.org/W1978557545, https://openalex.org/W2153059487, https://openalex.org/W2026222517, https://openalex.org/W2752431154, https://openalex.org/W2522799228, https://openalex.org/W2619099808, https://openalex.org/W2796097440, https://openalex.org/W1845447069, https://openalex.org/W2166281097, https://openalex.org/W2065163505, https://openalex.org/W2001391702, https://openalex.org/W1967812258, https://openalex.org/W2130505437, https://openalex.org/W967662607, https://openalex.org/W2278275864, https://openalex.org/W2078722963, https://openalex.org/W1593677402, https://openalex.org/W2416369080, https://openalex.org/W2156980099, https://openalex.org/W2409034689, https://openalex.org/W1898708983, https://openalex.org/W2344997643, https://openalex.org/W2021485150, https://openalex.org/W2124070987, https://openalex.org/W2498068237, https://openalex.org/W2162610091, https://openalex.org/W2124572713, https://openalex.org/W2031167188, https://openalex.org/W2774860195, https://openalex.org/W2146589073, https://openalex.org/W2502928238, https://openalex.org/W2434534914, https://openalex.org/W2055963492, https://openalex.org/W2374494912, https://openalex.org/W1897274595, https://openalex.org/W2167343594, https://openalex.org/W2165925551, https://openalex.org/W2032288122, https://openalex.org/W2105893051, https://openalex.org/W2125035146, https://openalex.org/W2577548076, https://openalex.org/W1943555183, https://openalex.org/W2599376433, https://openalex.org/W2518991284, https://openalex.org/W2781649790, https://openalex.org/W2155876431, https://openalex.org/W2058447512, https://openalex.org/W2107237727, https://openalex.org/W2531004731, https://openalex.org/W2049830359, https://openalex.org/W2157866334, https://openalex.org/W2794124501, https://openalex.org/W1989110940, https://openalex.org/W2001167462, https://openalex.org/W2211508475, https://openalex.org/W2088962840, https://openalex.org/W2102354860, https://openalex.org/W2148894673, https://openalex.org/W2128077096, https://openalex.org/W4211073917, https://openalex.org/W2105445407, https://openalex.org/W2503766608, https://openalex.org/W2857227641, https://openalex.org/W1991539495 |
| referenced_works_count | 69 |
| abstract_inverted_index.9 | 116 |
| abstract_inverted_index.D | 1, 170, 217, 239 |
| abstract_inverted_index.a | 84 |
| abstract_inverted_index.D3 | 67, 112 |
| abstract_inverted_index.an | 32 |
| abstract_inverted_index.as | 24, 172 |
| abstract_inverted_index.at | 96, 203 |
| abstract_inverted_index.be | 218 |
| abstract_inverted_index.in | 4, 35, 83, 167, 190, 220 |
| abstract_inverted_index.no | 187 |
| abstract_inverted_index.of | 38, 57, 65, 72, 110, 124, 149, 206, 223, 225, 234 |
| abstract_inverted_index.on | 69, 210 |
| abstract_inverted_index.or | 113 |
| abstract_inverted_index.to | 19, 51, 61, 93, 174, 228 |
| abstract_inverted_index.we | 213 |
| abstract_inverted_index.y) | 81 |
| abstract_inverted_index.D3, | 142 |
| abstract_inverted_index.IBS | 20, 74, 118 |
| abstract_inverted_index.May | 94 |
| abstract_inverted_index.The | 55 |
| abstract_inverted_index.VSI | 163 |
| abstract_inverted_index.aim | 56 |
| abstract_inverted_index.and | 27, 40, 43, 53, 130, 138, 147, 154, 162, 182, 197, 231 |
| abstract_inverted_index.are | 45 |
| abstract_inverted_index.can | 12 |
| abstract_inverted_index.due | 50 |
| abstract_inverted_index.end | 205 |
| abstract_inverted_index.for | 115 |
| abstract_inverted_index.its | 41 |
| abstract_inverted_index.our | 211 |
| abstract_inverted_index.the | 5, 14, 36, 48, 63, 70, 156, 168, 175, 200, 204, 207, 221 |
| abstract_inverted_index.two | 105, 201 |
| abstract_inverted_index.was | 60 |
| abstract_inverted_index.2017 | 92 |
| abstract_inverted_index.IBS, | 39 |
| abstract_inverted_index.QoL, | 160 |
| abstract_inverted_index.acid | 146 |
| abstract_inverted_index.from | 47, 90 |
| abstract_inverted_index.into | 104 |
| abstract_inverted_index.lead | 18 |
| abstract_inverted_index.life | 125, 233 |
| abstract_inverted_index.main | 15 |
| abstract_inverted_index.role | 34 |
| abstract_inverted_index.such | 23 |
| abstract_inverted_index.that | 17 |
| abstract_inverted_index.this | 58 |
| abstract_inverted_index.were | 102, 151, 186 |
| abstract_inverted_index.with | 7, 237 |
| abstract_inverted_index.(VSI) | 137 |
| abstract_inverted_index.(age: | 79 |
| abstract_inverted_index.18-65 | 80 |
| abstract_inverted_index.2018, | 95 |
| abstract_inverted_index.5-HT, | 195 |
| abstract_inverted_index.Based | 209 |
| abstract_inverted_index.IBS-D | 77, 235 |
| abstract_inverted_index.Iran. | 100 |
| abstract_inverted_index.Scale | 132 |
| abstract_inverted_index.There | 185 |
| abstract_inverted_index.after | 155 |
| abstract_inverted_index.bowel | 9 |
| abstract_inverted_index.group | 171, 177 |
| abstract_inverted_index.index | 136 |
| abstract_inverted_index.lumen | 49 |
| abstract_inverted_index.plays | 31 |
| abstract_inverted_index.ratio | 148 |
| abstract_inverted_index.score | 120, 164 |
| abstract_inverted_index.serum | 139, 194, 215 |
| abstract_inverted_index.study | 59, 89 |
| abstract_inverted_index.these | 226 |
| abstract_inverted_index.trial | 88 |
| abstract_inverted_index.(5-HT) | 30 |
| abstract_inverted_index.(IBS), | 11 |
| abstract_inverted_index.(QoL), | 127 |
| abstract_inverted_index.0.008; | 183 |
| abstract_inverted_index.0.023, | 181 |
| abstract_inverted_index.0.049, | 180 |
| abstract_inverted_index.25(OH) | 140 |
| abstract_inverted_index.50,000 | 108 |
| abstract_inverted_index.acetic | 145 |
| abstract_inverted_index.and/or | 241 |
| abstract_inverted_index.before | 153 |
| abstract_inverted_index.common | 3 |
| abstract_inverted_index.effect | 64 |
| abstract_inverted_index.groups | 106, 202 |
| abstract_inverted_index.induce | 13 |
| abstract_inverted_index.stress | 52 |
| abstract_inverted_index.study. | 208 |
| abstract_inverted_index.system | 121 |
| abstract_inverted_index.weeks. | 117 |
| abstract_inverted_index.(HADs), | 133 |
| abstract_inverted_index.5-HIAA, | 196 |
| abstract_inverted_index.IU/week | 109 |
| abstract_inverted_index.Tehran, | 99 |
| abstract_inverted_index.Vitamin | 0 |
| abstract_inverted_index.anxiety | 129 |
| abstract_inverted_index.between | 199 |
| abstract_inverted_index.factors | 16 |
| abstract_inverted_index.placebo | 114, 176 |
| abstract_inverted_index.process | 222 |
| abstract_inverted_index.quality | 232 |
| abstract_inverted_index.vitamin | 66, 111, 141, 169, 216, 238 |
| abstract_inverted_index.(IBS-D). | 75 |
| abstract_inverted_index.February | 91 |
| abstract_inverted_index.Subjects | 101 |
| abstract_inverted_index.Symptoms | 158 |
| abstract_inverted_index.anxiety, | 26 |
| abstract_inverted_index.clinical | 21 |
| abstract_inverted_index.compared | 173 |
| abstract_inverted_index.evaluate | 62 |
| abstract_inverted_index.hospital | 128 |
| abstract_inverted_index.improved | 165 |
| abstract_inverted_index.patients | 78, 227, 236 |
| abstract_inverted_index.results, | 212 |
| abstract_inverted_index.severity | 119 |
| abstract_inverted_index.symptoms | 230 |
| abstract_inverted_index.syndrome | 10 |
| abstract_inverted_index.visceral | 134 |
| abstract_inverted_index.Hospital, | 98 |
| abstract_inverted_index.Serotonin | 29 |
| abstract_inverted_index.abdominal | 191 |
| abstract_inverted_index.allocated | 103 |
| abstract_inverted_index.bloating, | 192 |
| abstract_inverted_index.evaluated | 152, 219 |
| abstract_inverted_index.important | 33 |
| abstract_inverted_index.increased | 46 |
| abstract_inverted_index.irritable | 8 |
| abstract_inverted_index.receiving | 107 |
| abstract_inverted_index.recommend | 214 |
| abstract_inverted_index.secretion | 44 |
| abstract_inverted_index.severity, | 159 |
| abstract_inverted_index.symptoms, | 22 |
| abstract_inverted_index.treatment | 224 |
| abstract_inverted_index.<0.001, | 179 |
| abstract_inverted_index.(IBS-SSS), | 122 |
| abstract_inverted_index.(P-values: | 178 |
| abstract_inverted_index.ameliorate | 229 |
| abstract_inverted_index.deficiency | 240 |
| abstract_inverted_index.depression | 131 |
| abstract_inverted_index.population | 6 |
| abstract_inverted_index.production | 42 |
| abstract_inverted_index.serotonin, | 143 |
| abstract_inverted_index.5-HIAA/5-HT | 150, 198 |
| abstract_inverted_index.IBS-quality | 123 |
| abstract_inverted_index.deficiency, | 2 |
| abstract_inverted_index.depression, | 25 |
| abstract_inverted_index.differences | 189 |
| abstract_inverted_index.randomized, | 85 |
| abstract_inverted_index.sensitivity | 135 |
| abstract_inverted_index.significant | 188 |
| abstract_inverted_index.Seventy-four | 76 |
| abstract_inverted_index.participated | 82 |
| abstract_inverted_index.pathogenesis | 71 |
| abstract_inverted_index.HADs-anxiety, | 193 |
| abstract_inverted_index.double-blind, | 86 |
| abstract_inverted_index.inflammation. | 28, 54 |
| abstract_inverted_index.questionnaire | 126 |
| abstract_inverted_index.significantly | 166 |
| abstract_inverted_index.Rasoul-e-Akram | 97 |
| abstract_inverted_index.insufficiency. | 242 |
| abstract_inverted_index.interventions. | 157 |
| abstract_inverted_index.respectively). | 184 |
| abstract_inverted_index.pathophysiology | 37 |
| abstract_inverted_index.supplementation | 68 |
| abstract_inverted_index.5-hydroxy-indole | 144 |
| abstract_inverted_index.HADs-depression, | 161 |
| abstract_inverted_index.placebo-controlled | 87 |
| abstract_inverted_index.diarrhea-predominant | 73 |
| cited_by_percentile_year.max | 98 |
| cited_by_percentile_year.min | 95 |
| countries_distinct_count | 2 |
| institutions_distinct_count | 9 |
| citation_normalized_percentile.value | 0.89837872 |
| citation_normalized_percentile.is_in_top_1_percent | False |
| citation_normalized_percentile.is_in_top_10_percent | True |