Historical Event
Date:
January 1, 1988
Short Description:
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"Gastric pH was highly acidic (range 1.0 - 2.5) in all human subjects.
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Measurement of gastrointestinal pH profiles in normal ambulant human subjects
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SUMMARY:
Gastrointestinal (GI) pH has been measured in 66 normal subjects using a pH sensitive radiotelemetry capsule passing freely through the gastrointestinal tract. Signals were recorded with a portable solid state receiver and recording system, enabling unconstrained measurements with normal ambulatory activities for up to 48 h during normal GI transit. Capsule position in the gut was monitored by surface location using a directional detector. Gastric pH was highly acidic (range 10-2.5) in all subjects. The mean pH in the proximal small intestine was 6.6 (0.5) for the first hour of intestinal recording. By comparison the mean pH in the terminal ileum was 7.5 (0.4) (p<0001). In all subjects there was a sharp fall in pH to a mean of6.4 (04) (p<0.001) as the capsule passed into the caecum. Values are means (SD). pH then rose progressively from the right to the left colon with a final mean value of 7.0 (0.7) (p<0
Topics: (click image to open)
Digestion | Digestion is the process by which the body breaks down food into smaller components that can be absorbed and utilized for energy, growth, and repair. It involves both mechanical and chemical processes that occur in various organs of the digestive system. | |
Carnivore Diet | The carnivore diet involves eating only animal products such as meat, fish, dairy, eggs, marrow, meat broths, organs. There are little to no plants in the diet. |