| Unique ID issued by UMIN | UMIN000056403 |
|---|---|
| Receipt number | R000064390 |
| Scientific Title | The Effect of Coffee-derived Mannooligosaccharides on Calcium Absorption in Healthy Adults -A Systematic Review with Meta-analysis-:Protocol |
| Date of disclosure of the study information | 2025/10/01 |
| Last modified on | 2024/12/09 13:26:26 |
The Effect of Coffee-derived Mannooligosaccharides on Calcium Absorption in Healthy Adults
-A Systematic Review with Meta-analysis-:Protocol
The Effect of Coffee-derived Mannooligosaccharides on Calcium Absorption in Healthy Adults
-A Systematic Review with Meta-analysis-:Protocol
The Effect of Coffee-derived Mannooligosaccharides on Calcium Absorption in Healthy Adults
-A Systematic Review with Meta-analysis-:Protocol
The Effect of Coffee-derived Mannooligosaccharides on Calcium Absorption in Healthy Adults
-A Systematic Review with Meta-analysis-:Protocol
| Japan |
The subjects are healthy volunteers (excluding those under 20, pregnant women, and lactating women, who were not suffering from any diseases).
Studies that are relevant to the outcome in question and include participants being treated as patients will be excluded.
| Adult |
Others
NO
The purpose of this study was to determine whether the intake of foods containing 'coffee bean-derived mannooligosaccharides' has the ability to promote the absorption of calcium in the diet in healthy adults, specifically from the urinary calcium content (creatinine corrected) (mg/g Cr) at each intake time.
Efficacy
The primary outcome is the effect of promoting intestinal absorption of calcium.
Specifically, the urinary calcium content (creatinine corrected) (mg/g Cr) at each hour of intake will be the primary endpoint.
Others,meta-analysis etc
| 20 | years-old | <= |
| Not applicable |
Male and Female
P-Participant:The subjects are healthy volunteers (excluding those under 20, pregnant women, and lactating women, who were not suffering from any diseases).
Studies that are relevant to the outcome in question and include participants being treated as patients will be excluded.
I-Intervention:The intervention condition is oral intake of a test product containing at least 0.5 g of 'coffee bean-derived mannooligosaccharides' (any form of intake).
C-Comparison:A comparison was made among one receiving a placebo, another serving as a control group in which food was substituted with food that does not contain 'coffee-derived mannooligosaccharides' and group with no intervention.
O-Outcome measurement:
Primary outcomes:The primary outcome is the effect of promoting intestinal absorption of calcium.Specifically, the urinary calcium content (creatinine corrected) (mg/g Cr) at each hour of intake will be the primary endpoint.
S-Study design:The research designs used in the literature were randomized parallel group controlled trials, quasi-randomized controlled trials, non-randomized controlled trials, and crossover studies. In addition, the languages of presentation were documents written in Japanese and English. In principle, the form of presentation should be an original paper, but short reports and reports may be accepted if the content can be identified. To avoid publication bias, studies that include results published in clinical trial registration databases are also eligible. For the time period, studies published from the first time the databases were opened or loaded to the date of the search will be included in the search.
Abstracts of conference presentations (conference proceedings) will be excluded they are considered insufficiently descriptive. Other gray documents will be excluded it is difficult to confirm their appropriateness.
| 1st name | Toshio |
| Middle name | |
| Last name | Kumao |
Ajinomoto AGF, INC.
Technology Development Dept. Technical Research and Development Institute
210-8681
1-1, Suzuki-cho Kawasaki-ku, Kawasaki-shi Kanagawa Pref.
044-223-4157
toshio.kumaoh.hv8@agf.co.jp
| 1st name | Yuki |
| Middle name | |
| Last name | Ishitani |
Ajinomoto AGF, INC.
Technology Development Dept. Technical Research and Development Institute
2108681
1-1, Suzuki-cho Kawasaki-ku, Kawasaki-shi Kanagawa Pref.
044-223-4157
yuki.ishitani.4yu@agf.co.jp
Ajinomoto AGF, INC.
Ajinomoto AGF, INC.
Profit organization
Review team
Mr. Katsuya Suzuki, Ajinomoto AGF, Inc.
Dr. Shigeyoshi Fujii, Former employees of Ajinomoto AGF, Inc.
Research Collaborator
Professor Hiroharu Kamioka, Tokyo University of Agriculture
Holders of library librarian qualifications
N/A
N/A
044-223-4157
yuki.ishitani.4yu@agf.co.jp
NO
| 2025 | Year | 10 | Month | 01 | Day |
Unpublished
Preinitiation
| 2024 | Year | 12 | Month | 04 | Day |
| 2024 | Year | 12 | Month | 16 | Day |
| 2025 | Year | 04 | Month | 01 | Day |
Information sources
10 databases and research registries will be searched. The search targets studies published from the time the site was first established or installed up to the date of each search.
Selection process
Based on the eligibility criteria (PICOS), two research reviewers (SF and YI) will independently conduct a first screening (abstract confirmation level) and a second screening (full text level) of the articles; they will then cross-check them and decide in consultation, including TK, on any inconsistencies.
Risk of bias in individual studies
The risk of bias assessment of individual studies is carried out using a 12-item checklist arranged by SR expert HK based on the Cochrane Collaboration Programme Review Manual.
Data synthesis
For meta-analysis eligibility, meta-analyses will be conducted using Review Manager for studies with low or medium risk of bias and no heterogeneity in PICOS. Any missing data in each of the included studies will be excluded, but authors will be contacted and figures will be incorporated if known.
Meta-bias
If integration is possible, it is shown in a funnel plot and an Egger test is performed. Heterogeneity is considered to be present when the probability of significance is 10% or less.
Indirectness
Indirectness is assessed on the basis of conformity with PICOS . It is rated 'low (0)' if all PICOS are met, 'medium (-1)' if there are minor deviations from any of the PICOS and 'high (-2)' if there are significant deviations from any of the PICOS.
Imprecision
Imprecision is graded as precise (0) for a total of 80 or more cases, slightly imprecise (-1) for 40-79 cases and imprecise (-2) for less than 40 cases.
Inconsistency
Inconsistency is assessed by I2 values and tests of heterogeneity based on meta-analysis effect estimates.
| 2024 | Year | 12 | Month | 09 | Day |
| 2024 | Year | 12 | Month | 09 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000064390