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Published on: September 18, 2014
Gallbladder and gastric motility in obese newborns, pre-adolescents and adults
Agostino Di Ciaula1, David Q-H Wang, Piero Portincasa
1Division of Internal Medicine, Hospital of Bisceglie, Bisceglie (BAT), Italy.
Insights
Obesity is linked to abnormal gallbladder and gastric motility, starting in pre-adolescence and worsening in adulthood, but not in newborns. Functional ultrasonography can detect these early motility changes.
Area of Science:
- Gastroenterology
- Pediatrics
- Metabolic Disorders
Background:
- Obesity is linked to impaired gallbladder and gastric motility in adults.
- The exact timing of when this dysfunction appears is not well understood.
Purpose of the Study:
- To investigate the age-related appearance of gallbladder and gastric motility dysfunction in obesity.
- To assess if obesity affects motility in newborns, pre-adolescents, and adults.
Main Methods:
- Noninvasive functional ultrasonography was used to assess gallbladder and gastric motility.
- Studies included 50 newborns, 18 pre-adolescents, and 99 adults, categorized as lean or obese.
- Motility was evaluated in fasting and postprandial states following milk or a test meal.
Main Results:
- Obese newborns showed no differences in motility compared to lean newborns.
- Obese pre-adolescents exhibited larger fasting gallbladder volume and slower gastric emptying than lean counterparts.
- Obese adults displayed the most significant dysfunction, with larger residual gallbladder volumes and slower gastric emptying.
Conclusions:
- Abnormal gallbladder and gastric motility patterns in obesity emerge in pre-adolescents and worsen with age.
- These motility abnormalities are absent in obese newborns.
- Functional ultrasonography is effective in detecting early stages of altered cholecysto-gastric motility, likely due to fat accumulation and insulin resistance.
Background And Aim:
Impaired gallbladder and gastric motility have been associated with obesity in adults. The timing of appearance of this dysfunction, however, is unclear.
Methods:
Lean and obese subjects from three different age groups were studied noninvasively: 50 newborns (1-12 months old, six obese), 18 pre-adolescents (7-8 years old, seven obese), and 99 adults (22-80 years old, 32 obese) classified according to standard normal tables and body mass index. Changes of fasting/postprandial gallbladder and gastric motility were assessed simultaneously by functional ultrasonography in response to milk (newborns and pre-adolescents) and to a liquid test meal (adults).
Results:
In newborns, fasting and postprandial gallbladder volumes and gastric emptying were similar between obese and lean subjects. In pre-adolescents, obese subjects had a larger fasting gallbladder volume, with slower postprandial gastric emptying than lean subjects. In obese adults, the most evident dysfunction emerged, with larger fasting and postprandial residual gallbladder volume, and slower postprandial gastric emptying than lean subjects.
Conclusions:
Obese subjects display abnormal gallbladder and gastric motility patterns, which first appear in pre-adolescents and deteriorate in adults. Such abnormalities are absent in obese newborns. Functional ultrasonography can detect altered cholecysto-gastric motility at the earliest stage. Our findings suggest an age-related decline of motility, probably secondary to excessive fat and insulin-resistance.
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