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MSG and Gastrointestinal Motility

Effect of Monosodium Glutamate on Upper Gastrointestinal Tract Motility

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01009658
Enrollment
40
Registered
2009-11-09
Start date
2009-12-31
Completion date
Unknown
Last updated
2015-03-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gastroesophageal Reflux

Keywords

Gastrointestinal motility, Gastroesophageal reflux, Gastric emptying, Sodium glutamate, Lower esophageal sphincter

Brief summary

The purpose of this study is to clarify the physiological function of sodium glutamate by measuring its effect on upper GI motility ( gastric emptying).

Detailed description

Amino acids such as monosodium glutamate are known to stimulate both endocrine and exocrine secretion. In addition, there is a report that oral intake of glutamate evokes the activation of vagal afferent nerves in the rat. Thus, such amino acids are thought to be influential in the process of digestion and absorption. . To investigate the effect of monosodium glutamate on gastrointestinal motility, we planned a single-blind randomized study. The participants will take either monosodium glutamate or sodium chloride before the first examination of upper GI motility and the other agent before the second examination. The order of intake will be randomized by the envelope method.

Interventions

DIETARY_SUPPLEMENTMonosodium glutamate

Oral intake of 2.0 g of monosodium glutamate on the examination day and 0.6 g of sodium chloride on the other examination day.

DIETARY_SUPPLEMENTSodium chloride

Oral intake of 0.6 g of sodium chloride on the examination day and 2.0 g of monosodium glutamate on the other examination day.

Sponsors

Gunma University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
BASIC_SCIENCE
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Healthy subjects * Must not have digestive symptoms * Must not eat within six hours of study participation

Exclusion criteria

* Regular medications for the gastrointestinal tract * Previous Helicobacter pylori infection * Previous abdominal surgery

Design outcomes

Primary

MeasureTime frameDescription
Gastric emptying0-5 hourshalf emptying time

Countries

Japan

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026