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Andersen S, Riis J, Karmisholt JS, Andersen SL. On the importance of sampling interval in studies of biological variation in thyroid function. Clin Chem Lab Med 2023; 61:e112-e114. [PMID: 36640439 DOI: 10.1515/cclm-2022-1130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 01/06/2023] [Indexed: 01/15/2023]
Affiliation(s)
- Stig Andersen
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
- Department of Internal and Geriatric Medicine, Aalborg University Hospital, Aalborg, Denmark
| | - Johannes Riis
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
- Department of Internal and Geriatric Medicine, Aalborg University Hospital, Aalborg, Denmark
| | - Jesper S Karmisholt
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
- Department of Endocrinology, Aalborg University Hospital, Aalborg, Denmark
| | - Stine L Andersen
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
- Department of Clinical Biochemistry, Aalborg University Hospital, Aalborg, Denmark
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Wegeberg AML, Brock C, Ejskjaer N, Karmisholt JS, Jakobsen PE, Drewes AM, Brock B, Farmer AD. Gastrointestinal symptoms and cardiac vagal tone in type 1 diabetes correlates with gut transit times and motility index. Neurogastroenterol Motil 2021; 33:e13885. [PMID: 32573076 DOI: 10.1111/nmo.13885] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 04/02/2020] [Accepted: 04/25/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Although gastrointestinal (GI) symptoms are common in diabetes, they frequently do not correlate with measurable sensorimotor abnormalities. The wireless motility capsule (WMC) measures pressure, temperature, and pH as it traverses the GI tract wherefrom transit times and motility indices are derived. The aim was to investigate whether GI symptoms correlate with changes in (a) segmental transit times, (b) segmental motility index, (c) cardiac vagal tone, or (d) presence/absence of peripheral neuropathy in type 1 diabetes. METHODS Gastrointestinal symptoms in 104 participants with type 1 diabetes were measured using Gastroparesis Cardinal Symptoms Index and Gastrointestinal Symptom Rating Scale. All underwent standardized WMC investigation measuring segmental transit time and motility. Cardiac vagal tone and presence of peripheral neuropathy were measured using electrocardiographic and nerve conduction velocity testing. KEY RESULTS Colonic transit time was correlated with postprandial fullness (P = .01) and constipation (P = .03), while decreased colonic motility index was correlated with diarrhea (P = .01) and decreased bloating (P < .05). Symptoms were not correlated with gastric or small bowel transit time or motility index. In participants with low cardiac vagal tone, gastric motility index (P < .01) and colonic transit time (P < .05) were increased, but not in those with peripheral neuropathy. Abdominal pain was decreased with both peripheral neuropathy (P = .04) and decreased cardiac vagal tone (P = .02). CONCLUSIONS AND INFERENCES This study supports the rationale for whole gut investigation, using not only transit times but incorporating contractility indices as well. Furthermore, a decreased parasympathetic modulation and an increased hyposensate state appear to be present in type 1 diabetes.
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Affiliation(s)
- Anne-Marie L Wegeberg
- Mech-Sense, Department of Gastroenterology and Hepatology, Aalborg University Hospital, Aalborg, Denmark.,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Christina Brock
- Mech-Sense, Department of Gastroenterology and Hepatology, Aalborg University Hospital, Aalborg, Denmark.,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Niels Ejskjaer
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark.,Department of Endocrinology, Aalborg University Hospital, Aalborg, Denmark.,Steno Diabetes Center North Denmark, Aalborg University Hospital, Aalborg, Denmark
| | | | - Poul-Erik Jakobsen
- Steno Diabetes Center North Denmark, Aalborg University Hospital, Aalborg, Denmark
| | - Asbjørn M Drewes
- Mech-Sense, Department of Gastroenterology and Hepatology, Aalborg University Hospital, Aalborg, Denmark.,Steno Diabetes Center North Denmark, Aalborg University Hospital, Aalborg, Denmark
| | | | - Adam D Farmer
- Mech-Sense, Department of Gastroenterology and Hepatology, Aalborg University Hospital, Aalborg, Denmark.,Neurogastroenterology Group, Centre for Neuroscience and Trauma, Blizard Institute, Wingate Institute of Neurogastroenterology, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK.,Department of Gastroenterology, University Hospitals of North Midlands, Stoke on Trent, UK
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