|
1
|
Giha HA. Hidden chronic metabolic acidosis of diabetes type 2 (CMAD): Clues, causes and consequences. Rev Endocr Metab Disord 2023; 24:735-750. [PMID: 37380824 DOI: 10.1007/s11154-023-09816-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/09/2023] [Indexed: 06/30/2023]
Abstract
Interpretation of existing data revealed that chronic metabolic acidosis is a pathognomic feature for type 2 diabetes (T2D), which is described here as "chronic metabolic acidosis of T2D (CMAD)" for the first time. The biochemical clues for the CMAD are summarised in the following; low blood bicarbonate (high anionic gap), low pH of interstitial fluid and urine, and response to acid neutralization, while the causes of extra protons are worked out to be; mitochondrial dysfunction, systemic inflammation, gut microbiota (GM), and diabetic lung. Although, the intracellular pH is largely preserved by the buffer system and ion transporters, a persistent systemic mild acidosis leaves molecular signature in cellular metabolism in diabetics. Reciprocally, there are evidences that CMAD contributes to the initiation and progression of T2D by; reducing insulin production, triggering insulin resistance directly or via altered GM, and inclined oxidative stress. The details about the above clues, causes and consequences of CMAD are obtained by searching literature spanning between 1955 and 2022. Finally, the molecular bases of CMAD are discussed in details by interpretation of an up-to-date data and aid of well constructed diagrams, with a conclusion unravelling that CMAD is a major player in T2D pathophysiology. To this end, the CMAD disclosure offers several therapeutic potentials for prevention, delay or attenuation of T2D and its complications.
Collapse
Affiliation(s)
- Hayder A Giha
- Medical Biochemistry and Molecular Biology, Khartoum, Sudan.
| |
Collapse
|
|
2
|
Lee WH, Wu DW, Chen YC, Liu YH, Liao WS, Chen SC, Hung CH, Kuo CH, Su HM. Association of Pulmonary Function Decline over Time with Longitudinal Change of Glycated Hemoglobin in Participants without Diabetes Mellitus. J Pers Med 2021; 11:jpm11100994. [PMID: 34683134 PMCID: PMC8537814 DOI: 10.3390/jpm11100994] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 09/20/2021] [Accepted: 09/29/2021] [Indexed: 01/13/2023] Open
Abstract
Pulmonary damage and function impairment were frequently noted in patients with diabetes mellitus (DM). However, the relationship between lung function and glycemic status in non-DM subjects was not well-known. Here, we evaluated the association of longitudinal changes of lung function parameters with longitudinal changes of glycated hemoglobin (HbA1c) in non-DM participants. The study enrolled participants without prior type 2 DM, hypertension, and chronic obstructive pulmonary disease (COPD) from the Taiwan Biobank database. Laboratory profiles and pulmonary function parameters, including forced vital capacity (FVC) and forced expiratory volume in 1 s (FEV1), were examined at baseline and follow-up. Finally, 7055 participants were selected in this study. During a mean 3.9-year follow-up, FVC and FEV1 were significantly decreased over time (both p < 0.001). In the multivariable analysis, the baseline (unstandardized coefficient β = −0.032, p < 0.001) and longitudinal change (unstandardized coefficient β = −0.025, p = 0.026) of FVC were negatively associated with the baseline and longitudinal change of HbA1c, respectively. Additionally, the longitudinal change of FVC was negatively associated with the risk of newly diagnosed type 2 DM (p = 0.018). During a mean 3.9-year follow-up, our present study, including participants without type 2 DM, hypertension, and COPD, demonstrated that the baseline and longitudinal change of FVC were negatively and respectively correlated with the baseline and longitudinal change of HbA1c. Furthermore, compared to those without new-onset DM, participants with new-onset DM had a more pronounced decline of FVC over time.
Collapse
Affiliation(s)
- Wen-Hsien Lee
- Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan; (W.-H.L.); (D.-W.W.); (Y.-C.C.); (Y.-H.L.); (W.-S.L.); (S.-C.C.); (C.-H.H.); (C.-H.K.)
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan
- Research Center for Environmental Medicine, Kaohsiung Medical University, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan
| | - Da-Wei Wu
- Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan; (W.-H.L.); (D.-W.W.); (Y.-C.C.); (Y.-H.L.); (W.-S.L.); (S.-C.C.); (C.-H.H.); (C.-H.K.)
- Research Center for Environmental Medicine, Kaohsiung Medical University, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Kaohsiung Medical University Hospital, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan
| | - Ying-Chih Chen
- Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan; (W.-H.L.); (D.-W.W.); (Y.-C.C.); (Y.-H.L.); (W.-S.L.); (S.-C.C.); (C.-H.H.); (C.-H.K.)
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan
| | - Yi-Hsueh Liu
- Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan; (W.-H.L.); (D.-W.W.); (Y.-C.C.); (Y.-H.L.); (W.-S.L.); (S.-C.C.); (C.-H.H.); (C.-H.K.)
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan
| | - Wei-Sheng Liao
- Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan; (W.-H.L.); (D.-W.W.); (Y.-C.C.); (Y.-H.L.); (W.-S.L.); (S.-C.C.); (C.-H.H.); (C.-H.K.)
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan
| | - Szu-Chia Chen
- Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan; (W.-H.L.); (D.-W.W.); (Y.-C.C.); (Y.-H.L.); (W.-S.L.); (S.-C.C.); (C.-H.H.); (C.-H.K.)
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan
- Research Center for Environmental Medicine, Kaohsiung Medical University, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan
| | - Chih-Hsing Hung
- Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan; (W.-H.L.); (D.-W.W.); (Y.-C.C.); (Y.-H.L.); (W.-S.L.); (S.-C.C.); (C.-H.H.); (C.-H.K.)
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan
- Research Center for Environmental Medicine, Kaohsiung Medical University, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan
| | - Chao-Hung Kuo
- Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan; (W.-H.L.); (D.-W.W.); (Y.-C.C.); (Y.-H.L.); (W.-S.L.); (S.-C.C.); (C.-H.H.); (C.-H.K.)
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan
- Research Center for Environmental Medicine, Kaohsiung Medical University, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan
| | - Ho-Ming Su
- Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan; (W.-H.L.); (D.-W.W.); (Y.-C.C.); (Y.-H.L.); (W.-S.L.); (S.-C.C.); (C.-H.H.); (C.-H.K.)
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan
- Research Center for Environmental Medicine, Kaohsiung Medical University, 482 Shan-Ming Rd., Hsiao-Kang Dist., Kaohsiung 812, Taiwan
- Correspondence: ; Tel.: +886-7-8036783-3441; Fax: +886-7-8063346
| |
Collapse
|