1
|
Shi TF, Zhou Z, Jiang WJ, Huang TL, Si JQ, Li L. Hyperglycemia-induced oxidative stress exacerbates mitochondrial apoptosis damage to cochlear stria vascularis pericytes via the ROS-mediated Bcl-2/CytC/AIF pathway. Redox Rep 2024; 29:2382943. [PMID: 39092597 PMCID: PMC11299461 DOI: 10.1080/13510002.2024.2382943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2024] Open
Abstract
OBJECTIVES Diabetes is closely linked to hearing loss, yet the exact mechanisms remain unclear. Cochlear stria vascularis and pericytes (PCs) are crucial for hearing. This study investigates whether high glucose induces apoptosis in the cochlear stria vascularis and pericytes via elevated ROS levels due to oxidative stress, impacting hearing loss. METHODS We established a type II diabetes model in C57BL/6J mice and used auditory brainstem response (ABR), Evans blue staining, HE staining, immunohistochemistry, and immunofluorescence to observe changes in hearing, blood-labyrinth barrier (BLB) permeability, stria vascularis morphology, and apoptosis protein expression. Primary cultured stria vascularis pericytes were subjected to high glucose, and apoptosis levels were assessed using flow cytometry, Annexin V-FITC, Hoechst 33342 staining, Western blot, Mitosox, and JC-1 probes. RESULTS Diabetic mice showed decreased hearing thresholds, reduced stria vascularis density, increased oxidative stress, cell apoptosis, and decreased antioxidant levels. High glucose exposure increased apoptosis and ROS content in pericytes, while mitochondrial membrane potential decreased, with AIF and cytochrome C (CytC) released from mitochondria to the cytoplasm. Adding oxidative scavengers reduced AIF and CytC release, decreasing pericyte apoptosis. DISCUSSION Hyperglycemia may induce mitochondrial apoptosis of cochlear stria vascularis pericytes through oxidative stress.
Collapse
Affiliation(s)
- Tian-feng Shi
- Department of Physiology, Medical College of Jiaxing University, Jiaxing, Zhejiang, People's Republic of China
- Department of Physiology, Medical College of Shihezi University, Shihezi, Xinjiang, People's Republic of China
- The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University, Shihezi, Xinjiang, People's Republic of China
| | - Zan Zhou
- Department of Physiology, Medical College of Jiaxing University, Jiaxing, Zhejiang, People's Republic of China
- Department of Physiology, Medical College of Shihezi University, Shihezi, Xinjiang, People's Republic of China
- The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University, Shihezi, Xinjiang, People's Republic of China
| | - Wen-jun Jiang
- Department of Physiology, Medical College of Jiaxing University, Jiaxing, Zhejiang, People's Republic of China
- Department of Physiology, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, People's Republic of China
| | - Tian-lan Huang
- Department of Physiology, Medical College of Shihezi University, Shihezi, Xinjiang, People's Republic of China
- The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University, Shihezi, Xinjiang, People's Republic of China
| | - Jun-qiang Si
- Department of Physiology, Medical College of Shihezi University, Shihezi, Xinjiang, People's Republic of China
- The Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Medical College of Shihezi University, Shihezi, Xinjiang, People's Republic of China
| | - Li Li
- Department of Physiology, Medical College of Jiaxing University, Jiaxing, Zhejiang, People's Republic of China
| |
Collapse
|
2
|
Morrish F, Gingras H, Noonan J, Huang L, Sweet IR, Kuok IT, Knoblaugh SE, Hockenbery DM. Mitochondrial diabetes in mice expressing a dominant-negative allele of nuclear respiratory factor-1 (Nrf1) in pancreatic β-cells. Biochem Biophys Res Commun 2024; 737:150478. [PMID: 39128225 DOI: 10.1016/j.bbrc.2024.150478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 07/17/2024] [Accepted: 07/29/2024] [Indexed: 08/13/2024]
Abstract
Genetic polymorphisms in nuclear respiratory factor-1 (Nrf1), a key transcriptional regulator of nuclear-encoded mitochondrial proteins, have been linked to diabetes. Homozygous deletion of Nrf1 is embryonic lethal in mice. Our goal was to generate mice with β-cell-specific reduction in NRF1 function to investigate the relationship between NRF1 and diabetes. We report the generation of mice expressing a dominant-negative allele of Nrf1 (DNNRF1) in pancreatic β-cells. Heterozygous transgenic mice had high fed blood glucose levels detected at 3 wks of age, which persisted through adulthood. Plasma insulin levels in DNNRF1 transgenic mice were reduced, while insulin sensitivity remained intact in young animals. Islet size was reduced with increased numbers of apoptotic cells, and insulin content in islets by immunohistochemistry was low. Glucose-stimulated insulin secretion in isolated islets was reduced in DNNRF1-mice, but partially rescued by KCl, suggesting that decreased mitochondrial function contributed to the insulin secretory defect. Electron micrographs demonstrated abnormal mitochondrial morphology in β-cells. Expression of NRF1 target genes Tfam, Tfb1m and Tfb2m, and islet cytochrome c oxidase and succinate dehydrogenase activities were reduced in DNNRF1-mice. Rescue of mitochondrial function with low level activation of transgenic c-Myc in β-cells was sufficient to restore β-cell mass and prevent diabetes. This study demonstrates that reduced NRF1 function can lead to loss of β-cell function and establishes a model to study the interplay between regulators of bi-genomic gene transcription in diabetes.
Collapse
Affiliation(s)
- Fionnuala Morrish
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Helene Gingras
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Joanna Noonan
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Li Huang
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Ian R Sweet
- University of Washington Diabetes Institute, University of Washington, Seattle, WA, USA
| | - Iok Teng Kuok
- University of Washington Diabetes Institute, University of Washington, Seattle, WA, USA
| | - Sue E Knoblaugh
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - David M Hockenbery
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA, USA.
| |
Collapse
|
3
|
Zhou W, Yu H, Yan S. Single-cell transcriptome sequencing revealed the metabolic changes and microenvironment changes of cardiomyocytes induced by diabetes. Comput Biol Chem 2024; 112:108136. [PMID: 38924959 DOI: 10.1016/j.compbiolchem.2024.108136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 06/18/2024] [Accepted: 06/20/2024] [Indexed: 06/28/2024]
Abstract
PURPOSE Diabetes is a chronic metabolic disorder characterized by elevated blood glucose levels. This study aimed to analyze the changes underlying heterogeneities and communication properties of CMs in diabetes mellitus (DM). METHODS GSE213337 dataset was retrieved from NCBI Gene Expression Omnibus, containing the single-cell RNA sequencing data of hearts from the control and streptozotocin-induced diabetic mice. GSEA and GSVA were used to explore the function enrichment of DEGs in CM. Cell communication analysis was carried out to study the altered signals and significant ligand-receptor interactions. RESULTS Seventeen cell types were identified between DM and the controls. The increasing ratio of CM suggested the occurrence of diabetes induces potential pathological changes of CM proliferation. A total of 1144 DEGs were identified in CM. GSEA and GSVA analysis indicated the enhancing lipid metabolism involving in DM. The results of cell communication analysis suggested that high glucose activated the ability of CM receiving fibroblast and LEC, while inhibited the capacity of receiving ECC and pericyte. Furthermore, GAS and ANGPTL were significantly decreased under DM, which was consistent with the results of GSEA and GSVA. Finally, the ligand-receptor interactions such as vegfc-vegfr2, angptl1 were changes in CM. CONCLUSIONS The CM showed the significant heterogeneities in DM, which played an important role in myocardial fibrosis induce by hyperglycemia.
Collapse
Affiliation(s)
- Weiyu Zhou
- Department of Endocrine and Metabolic Diseases, The Fourth Affiliated Hospital of Harbin Medical University, No.37, Yiyuan Street, Nangang District, Harbin, Heilongjiang 150000, China
| | - Haiqiao Yu
- Department of Endocrine and Metabolic Diseases, The Fourth Affiliated Hospital of Harbin Medical University, No.37, Yiyuan Street, Nangang District, Harbin, Heilongjiang 150000, China
| | - Shuang Yan
- Department of Endocrine and Metabolic Diseases, The Fourth Affiliated Hospital of Harbin Medical University, No.37, Yiyuan Street, Nangang District, Harbin, Heilongjiang 150000, China.
| |
Collapse
|
4
|
Haque S, Crawley K, Davis R, Schofield D, Shrestha R, Sue CM. Clinical drivers of hospitalisation in patients with mitochondrial diseases. BMJ Neurol Open 2024; 6:e000717. [PMID: 38868460 PMCID: PMC11168164 DOI: 10.1136/bmjno-2024-000717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Accepted: 05/13/2024] [Indexed: 06/14/2024] Open
Abstract
Background Mitochondrial diseases in adults are generally chronic conditions with a wide spectrum of severity contributing to disease burden and healthcare resource utilisation. Data on healthcare resource utilisation in mitochondrial diseases are limited. Objectives We performed a retrospective longitudinal study to investigate the clinical drivers of hospitalisation in adult patients with mitochondrial diseases to better understand healthcare resource utilisation. Methods We recruited participants from our specialised Mitochondrial Disease Clinic in Sydney, Australia between September 2018 and December 2021. We performed a retrospective chart review for the period 2013-2022 considering emergency department (ED) and/or hospital admission notes, as well as discharge summaries. We used multiple linear regression models to examine the association between the type of presenting symptom(s) and duration of hospital stay and frequency of admissions, while adjusting for relevant covariates. Results Of the 99 patients considered, the duration of hospitalisation ranged from 0 to 116 days per participant and the number of admissions ranged from 0 to 21 per participant. Participants with one or more mitochondrial disease-associated admissions constituted 52% of the study cohort. 13% of the participants presented to the ED without requiring an admission and 35% never attended the ED or required a hospital admission during this period. Neurological (p<0.0001), gastroenterological (p=0.01) and symptoms categorised as 'other' (p<0.0001) were the main presentations driving the total number of days admitted to hospital. A statistically significant association was evident for the number of admissions and all types of presenting symptoms (p<0.0001). Conclusion There are variable reasons for hospitalisation in adults with mitochondrial diseases, with neurological and gastroenterological presentations being associated with prolonged and complex hospitalisation. A better understanding of clinical drivers such as these allows for better informed and well-coordinated management aimed at optimising healthcare resource utilisation.
Collapse
Affiliation(s)
- Sameen Haque
- Neurology, Nepean Hospital, Kingswood, New South Wales, Australia
- Neurogenetics, Kolling Institute of Medical Research, St Leonards, New South Wales, Australia
| | - Karen Crawley
- Neurogenetics, Kolling Institute of Medical Research, St Leonards, New South Wales, Australia
| | - Ryan Davis
- Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
- Neurogenetics Research Group, Kolling Institute of Medical Research, St Leonards, New South Wales, Australia
| | - Deborah Schofield
- Centre for Economic Impacts of Genomic Medicine (GenIMPACT), Macquarie University, Sydney, New South Wales, Australia
| | - Rupendra Shrestha
- Centre for Economic Impacts of Genomic Medicine (GenIMPACT), Macquarie University, Sydney, New South Wales, Australia
| | - Carolyn M Sue
- Kinghorn Chair, Neurodegeneration, Neuroscience Research Australia, Randwick, New South Wales, Australia
- Faculty of Medicine, UNSW Sydney, Sydney, New South Wales, Australia
| |
Collapse
|
5
|
Xu W, Xu X, Zhang M, Sun C. Association between HDL cholesterol with diabetic retinopathy in diabetic patients: a cross-sectional retrospective study. BMC Endocr Disord 2024; 24:65. [PMID: 38730329 PMCID: PMC11084017 DOI: 10.1186/s12902-024-01599-0] [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] [Received: 01/21/2024] [Accepted: 05/07/2024] [Indexed: 05/12/2024] Open
Abstract
OBJECTIVE Diabetic patients are often comorbid with dyslipidemia, however, the relationship between high-density lipoprotein cholesterol(HDL-C) and diabetic retinopathy (DR) in the adult diabetic population remains to be fully elucidated.The aim of this study is to evaluate the associations between HDL-C and DR in the United States adults with diabetes. METHODS A total of 1708 participants from the National Health and Nutrition Examination Survey (NHANES) 2005-2008 were enrolled in the present study. Fundus images of all study subjects were captured and evaluated using a digital camera and an ophthalmic digital imaging system, and the diagnosis of DR was made by the severity scale of the Early Treatment Diabetic Retinopathy Study (ETDRS).Roche Diagnostics were used to measure serum HDL-C concentration. The relationship of DR with HDL-C was investigated using multivariable logistic regression. The potential non-line correlation was explored with smooth curve fitting approach. RESULTS The fully-adjusted model showed that HDL-C positively correlated with DR(OR:1.69, 95%CI: 1.25-2.31).However, an inverted U-shaped association between them was observed by applying the smooth curve fitted method. The inflection point of HDL-C(1.99mmol/l) was calculated by utilizing the two-piecewise logistic regression model. In the subgroup analysis, the inverted U-shaped nonlinear correlation between HDL-C and DR was also found in female, Non-Hispanic White, and lower age groups. CONCLUSION Our study revealed an inverted U-shaped positive relationship between HDL-C and DR.The findings may provide us with a more comprehensive understanding of the association between HDL-C and DR.
Collapse
Affiliation(s)
- Wuping Xu
- Department of Ophthalmology, The First People's Hospital of Jiangyin District, Wuxi, Jiangsu, 214400, People's Republic of China.
| | - Xuedong Xu
- Department of Ophthalmology, The First People's Hospital of Jiangyin District, Wuxi, Jiangsu, 214400, People's Republic of China
| | - Min Zhang
- Department of Ophthalmology, The First People's Hospital of Jiangyin District, Wuxi, Jiangsu, 214400, People's Republic of China
| | - Chiping Sun
- Department of Ophthalmology, The First People's Hospital of Jiangyin District, Wuxi, Jiangsu, 214400, People's Republic of China
| |
Collapse
|
6
|
Chidambaram Y, Vijayakumar V, Ravi P, Boopalan D, Anandhan A, Kuppusamy M. Does hydrotherapy influence plasma glucose levels in type 2 diabetes? - A scoping review. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2024; 21:14-18. [PMID: 37183593 DOI: 10.1515/jcim-2023-0037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 04/10/2023] [Indexed: 05/16/2023]
Abstract
BACKGROUND Hydrotherapy is a commonly used treatment modality to manage various conditions including diabetes in the Naturopathy system of medicine. The objective of the current scoping review is to find the effectiveness of hydrotherapy on plasma blood glucose levels in type 2 diabetes. CONTENT Arksey and O'Malley's five-stage framework was adopted for this scoping review. The studies which used hydrotherapy intervention for the management of diabetes or the effect of hydrotherapy on plasma glucose levels were considered eligible. PubMed/MEDLINE, EMBASE, Cochrane library, and Google scholar were searched for English- language published articles till December 20, 2022. The following Medical Subject Headings (MeSH) and keyword search terms were used ("diabetes" OR "type 2 diabetes" OR "diabetes mellitus" OR "plasma glucose level") AND ("hydrotherapy" OR "water therapy" OR "balneotherapy"). Two investigators independently assessed the studies for inclusion. Review articles, abstracts, and articles including the aquatic exercises as interventions were excluded. SUMMARY In total, six studies met the inclusion criteria. Out of six, two studies used hot therapies, two studies cold therapy, and the remaining two used both hot and cold as interventions. The study results showed that hydrotherapy can be used as an effective intervention tool for blood glucose levels in patients with type 2 diabetes. OUTLOOK Integrating hydrotherapy treatments alongside conventional management can reduce blood glucose levels and thus reduce diabetes-related complications.
Collapse
Affiliation(s)
- Yogapriya Chidambaram
- Department of Naturopathy, Govt. Yoga and Naturopathy Medical College and Hospital, The Tamilnadu Dr. MGR Medical University, Chennai, India
| | - Venugopal Vijayakumar
- Department of Yoga, Govt. Yoga and Naturopathy Medical College and Hospital, The Tamilnadu Dr. MGR Medical University, Chennai, India
| | - Poornima Ravi
- Department of Yoga and Naturopathy, Govt. Yoga and Naturopathy Medical College and Hospital, The Tamilnadu Dr. MGR Medical University, Chennai, India
| | - Deenadayalan Boopalan
- Department of Naturopathy, Govt. Yoga and Naturopathy Medical College and Hospital, The Tamilnadu Dr. MGR Medical University, Chennai, India
| | - Akila Anandhan
- Department of Acupuncture and Energy Medicine, Govt. Yoga and Naturopathy Medical College and Hospital, The Tamilnadu Dr. MGR Medical University, Chennai, India
| | - Maheshkumar Kuppusamy
- Department of Physiology, Govt. Yoga and Naturopathy Medical College and Hospital, The Tamilnadu Dr. MGR Medical University, Chennai, India
| |
Collapse
|
7
|
Lu Y, Zhao D, Cao G, Yin S, Liu C, Song R, Ma J, Sun R, Wu Z, Liu J, Wu P, Wang Y. Research progress on and molecular mechanism of vacuum sealing drainage in the treatment of diabetic foot ulcers. Front Surg 2024; 11:1265360. [PMID: 38464666 PMCID: PMC10920358 DOI: 10.3389/fsurg.2024.1265360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 01/05/2024] [Indexed: 03/12/2024] Open
Abstract
Diabetic foot ulcers (DFUs) are common chronic wounds and a common complication of diabetes. The foot is the main site of diabetic ulcers, which involve small and medium-sized arteries, peripheral nerves, and microcirculation, among others. DFUs are prone to coinfections and affect many diabetic patients. In recent years, interdisciplinary research combining medicine and material science has been increasing and has achieved significant clinical therapeutic effects, and the application of vacuum sealing drainage (VSD) in the treatment of DFUs is a typical representative of this progress, but the mechanism of action remains unclear. In this review, we integrated bioinformatics and literature and found that ferroptosis is an important signaling pathway through which VSD promotes the healing of DFUs and that System Xc-GSH-GPX4 and NAD(P)H-CoQ10-FSP1 are important axes in this signaling pathway, and we speculate that VSD is most likely to inhibit ferroptosis to promote DFU healing through the above axes. In addition, we found that some classical pathways, such as the TNF, NF-κB, and Wnt/β-catenin pathways, are also involved in the VSD-mediated promotion of DFU healing. We also compiled and reviewed the progress from clinical studies on VSD, and this information provides a reference for the study of VSD in the treatment of DFUs.
Collapse
Affiliation(s)
- Yongpan Lu
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
- Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - Dejie Zhao
- Department of Vascular Surgery, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Guoqi Cao
- Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Department of Plastic Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - Siyuan Yin
- Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Department of Plastic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - Chunyan Liu
- Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Department of Plastic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - Ru Song
- Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Department of Plastic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - Jiaxu Ma
- Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Department of Plastic Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - Rui Sun
- Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Department of Plastic Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - Zhenjie Wu
- Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Department of Plastic Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - Jian Liu
- Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Department of Plastic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - Peng Wu
- Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Department of Plastic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - Yibing Wang
- Jinan Clinical Research Center for Tissue Engineering Skin Regeneration and Wound Repair, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
- Department of Plastic Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, China
| |
Collapse
|
8
|
Rivera Nieves AM, Wauford BM, Fu A. Mitochondrial bioenergetics, metabolism, and beyond in pancreatic β-cells and diabetes. Front Mol Biosci 2024; 11:1354199. [PMID: 38404962 PMCID: PMC10884328 DOI: 10.3389/fmolb.2024.1354199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 01/17/2024] [Indexed: 02/27/2024] Open
Abstract
In Type 1 and Type 2 diabetes, pancreatic β-cell survival and function are impaired. Additional etiologies of diabetes include dysfunction in insulin-sensing hepatic, muscle, and adipose tissues as well as immune cells. An important determinant of metabolic health across these various tissues is mitochondria function and structure. This review focuses on the role of mitochondria in diabetes pathogenesis, with a specific emphasis on pancreatic β-cells. These dynamic organelles are obligate for β-cell survival, function, replication, insulin production, and control over insulin release. Therefore, it is not surprising that mitochondria are severely defective in diabetic contexts. Mitochondrial dysfunction poses challenges to assess in cause-effect studies, prompting us to assemble and deliberate the evidence for mitochondria dysfunction as a cause or consequence of diabetes. Understanding the precise molecular mechanisms underlying mitochondrial dysfunction in diabetes and identifying therapeutic strategies to restore mitochondrial homeostasis and enhance β-cell function are active and expanding areas of research. In summary, this review examines the multidimensional role of mitochondria in diabetes, focusing on pancreatic β-cells and highlighting the significance of mitochondrial metabolism, bioenergetics, calcium, dynamics, and mitophagy in the pathophysiology of diabetes. We describe the effects of diabetes-related gluco/lipotoxic, oxidative and inflammation stress on β-cell mitochondria, as well as the role played by mitochondria on the pathologic outcomes of these stress paradigms. By examining these aspects, we provide updated insights and highlight areas where further research is required for a deeper molecular understanding of the role of mitochondria in β-cells and diabetes.
Collapse
Affiliation(s)
- Alejandra María Rivera Nieves
- Diabetes Center of Excellence, University of Massachusetts Chan Medical School, Worcester, MA, United States
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, United States
| | - Brian Michael Wauford
- Diabetes Center of Excellence, University of Massachusetts Chan Medical School, Worcester, MA, United States
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, United States
| | - Accalia Fu
- Diabetes Center of Excellence, University of Massachusetts Chan Medical School, Worcester, MA, United States
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA, United States
| |
Collapse
|
9
|
Romo L, Gold NB, Walker MA. Endocrine features of primary mitochondrial diseases. Curr Opin Endocrinol Diabetes Obes 2024; 31:34-42. [PMID: 38047549 PMCID: PMC10734788 DOI: 10.1097/med.0000000000000848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
PURPOSE OF REVIEW Primary mitochondrial diseases are one of the most prevalent groups of multisystem genetic disorders. Endocrinopathies associated with mitochondrial diseases may have clinical features that are distinct from the more common forms. We provide an overview of mitochondrial disorder genetics and phenotypes, focusing on recent studies regarding identification and treatment of associated endocrinopathies. RECENT FINDINGS Known endocrine phenotypes of mitochondrial disorders continue to expand, and now include growth hormone deficiency, hypogonadism, precocious puberty, hypoparathyroidism, hypo- and hyperthyroidism, diabetes, and adrenal insufficiency. Recent studies suggest several genotype-phenotype correlations, including those related to nuclear variants. Diagnosis is important, as special considerations should be made in the management of endocrinopathies in mitochondrial patients. Finally, new mitochondrial replacement strategies may soon be available for women interested in preventing mitochondrial disease transmission to offspring. SUMMARY Patients with multiple endocrinopathies or atypical endocrinopathies should be evaluated for primary mitochondrial disease, as a diagnosis may impact management of these individuals.
Collapse
Affiliation(s)
- Lindsay Romo
- Harvard Medical Genetics Training Program, Boston Children's Hospital Boston
| | - Nina B. Gold
- Division of Medical Genetics and Metabolism, Department of Pediatrics, Massachusetts General Hospital for Children and Harvard Medical School
| | - Melissa A. Walker
- Division of Child Neurology, Department of Neurology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| |
Collapse
|
10
|
Conti F, Di Martino S, Drago F, Bucolo C, Micale V, Montano V, Siciliano G, Mancuso M, Lopriore P. Red Flags in Primary Mitochondrial Diseases: What Should We Recognize? Int J Mol Sci 2023; 24:16746. [PMID: 38069070 PMCID: PMC10706469 DOI: 10.3390/ijms242316746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 11/22/2023] [Accepted: 11/23/2023] [Indexed: 12/18/2023] Open
Abstract
Primary mitochondrial diseases (PMDs) are complex group of metabolic disorders caused by genetically determined impairment of the mitochondrial oxidative phosphorylation (OXPHOS). The unique features of mitochondrial genetics and the pivotal role of mitochondria in cell biology explain the phenotypical heterogeneity of primary mitochondrial diseases and the resulting diagnostic challenges that follow. Some peculiar features ("red flags") may indicate a primary mitochondrial disease, helping the physician to orient in this diagnostic maze. In this narrative review, we aimed to outline the features of the most common mitochondrial red flags offering a general overview on the topic that could help physicians to untangle mitochondrial medicine complexity.
Collapse
Affiliation(s)
- Federica Conti
- Department of Biomedical and Biotechnological Science, School of Medicine, University of Catania, 95123 Catania, Italy; (F.C.); (S.D.M.); (C.B.); (V.M.)
| | - Serena Di Martino
- Department of Biomedical and Biotechnological Science, School of Medicine, University of Catania, 95123 Catania, Italy; (F.C.); (S.D.M.); (C.B.); (V.M.)
| | - Filippo Drago
- Department of Biomedical and Biotechnological Science, School of Medicine, University of Catania, 95123 Catania, Italy; (F.C.); (S.D.M.); (C.B.); (V.M.)
| | - Claudio Bucolo
- Department of Biomedical and Biotechnological Science, School of Medicine, University of Catania, 95123 Catania, Italy; (F.C.); (S.D.M.); (C.B.); (V.M.)
- Center for Research in Ocular Pharmacology-CERFO, University of Catania, 95213 Catania, Italy
| | - Vincenzo Micale
- Department of Biomedical and Biotechnological Science, School of Medicine, University of Catania, 95123 Catania, Italy; (F.C.); (S.D.M.); (C.B.); (V.M.)
| | - Vincenzo Montano
- Neurological Institute, Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy (P.L.)
| | - Gabriele Siciliano
- Neurological Institute, Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy (P.L.)
| | - Michelangelo Mancuso
- Neurological Institute, Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy (P.L.)
| | - Piervito Lopriore
- Neurological Institute, Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy (P.L.)
| |
Collapse
|
11
|
Morrish F, Gingras H, Noonan J, Huang L, Sweet IR, Kuok IT, Knoblaugh SE, Hockenbery DM. Mitochondrial diabetes in mice expressing a dominant-negative allele of nuclear respiratory factor-1 ( Nrf1 ) in pancreatic β-cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.22.524153. [PMID: 38014068 PMCID: PMC10680558 DOI: 10.1101/2023.01.22.524153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Genetic polymorphisms in nuclear respiratory factor-1 ( NRF1 ), a key transcriptional regulator of nuclear-encoded mitochondrial proteins, have been linked to diabetes. Homozygous deletion of Nrf1 is embryonic lethal in mice. Our goal was to generate mice with β-cell-specific reduction in NRF1 function to investigate the relationship between NRF1 and diabetes. We report the generation of mice expressing a dominant-negative allele of Nrf1 (DNNRF1) in pancreatic β-cells. Heterozygous transgenic mice had high fed blood glucose levels detected at 3 wks of age, which persisted through adulthood. Plasma insulin levels in DNNRF1 transgenic mice were reduced, while insulin sensitivity remained intact in young animals. Islet size was reduced with increased numbers of apoptotic cells, and insulin content in islets by immunohistochemistry was low. Glucose-stimulated insulin secretion in isolated islets was reduced in DNNRF1-mice, but partially rescued by KCl, suggesting that decreased mitochondrial function contributed to the insulin secretory defect. Electron micrographs demonstrated abnormal mitochondrial morphology in β- cells. Expression of NRF1 target genes Tfam , T@1m and T@2m , and islet cytochrome c oxidase and succinate dehydrogenase activities were reduced in DNNRF1-mice. Rescue of mitochondrial function with low level activation of transgenic c-Myc in β-cells was sufficient to restore β-cell mass and prevent diabetes. This study demonstrates that reduced NRF1 function can lead to loss of β-cell function and establishes a model to study the interplay between regulators of bi- genomic gene transcription in diabetes.
Collapse
|
12
|
Al-Enazi NM, Alsamhary K, Ameen F. Evaluation of citrus pectin capped copper sulfide nanoparticles against Candidiasis causing Candida biofilms. ENVIRONMENTAL RESEARCH 2023; 225:115599. [PMID: 36898420 DOI: 10.1016/j.envres.2023.115599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 02/19/2023] [Accepted: 02/28/2023] [Indexed: 06/18/2023]
Abstract
The incidence of candidiasis has significantly increased globally in recent decades, and it is a significant source of morbidity and mortality, particularly in critically ill patients. Candida sp. ability to generate biofilms is one of its primary pathogenic traits. Drug-resistant strains have led to clinical failures of traditional antifungals, necessitating the development of a more modern therapy that can inhibit biofilm formation and enhance Candida sp. sensitivity to the immune system. The present study reports the anticandidal potential of pectin-capped copper sulfide nanoparticles (pCuS NPs) against Candida albicans. The pCuS NPs inhibit C. albicans growth at a minimum inhibitory concentration (MIC) of 31.25 μM and exhibit antifungal action by compromising membrane integrity and overproducing reactive oxygen species. The pCuS NPs, at their biofilm inhibitory concentration (BIC) of 15.63 μM, effectively inhibited C. albicans cells adhering to the glass slides, confirmed by light microscopy and scanning electron microscopy. Phase contrast microscopy pictures revealed that NPs controlled the morphological transitions between the yeast and hyphal forms by limiting conditions that led to filamentation and reducing hyphal extension. In addition, C. albicans showed reduced exopolysaccharide (EPS) production and exhibited less cell surface hydrophobicity (CSH) after pCuS NPs treatment. The findings suggest that pCuS NPs may be able to inhibit the emergence of virulence traits that lead to the formation of biofilms, such as EPS, CSH, and hyphal morphogenesis. The results raise the possibility of developing NPs-based therapies for C. albicans infections associated with biofilms.
Collapse
Affiliation(s)
- Nouf M Al-Enazi
- Department of Biology, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-kharj, 11942, Saudi Arabia.
| | - Khawla Alsamhary
- Department of Biology, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-kharj, 11942, Saudi Arabia
| | - Fuad Ameen
- Department of Botany & Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| |
Collapse
|
13
|
Potential Mechanisms of Yiqi Jiedu Huayu Decoction in the Treatment of Diabetic Microvascular Complications Based on Network Analysis, Molecular Docking, and Experimental Validation. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2023. [DOI: 10.1155/2023/5034687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Background. Diabetic microvascular complications are the main causes of organ dysfunction and even death in diabetic patients. Our previous studies confirmed the beneficial effects of Yiqi Jiedu Huayu Decoction (YJHD) on diabetic cardiomyopathy and diabetic nephropathy. It is not clear whether YJHD can treat multiple diabetic microvascular complications including diabetic retinopathy, diabetic cardiomyopathy, and diabetic nephropathy through some common mechanisms. Methods. TCMSP, SymMap, STITCH, Swiss Target Prediction, and SEA databases were used to collect and analyze the components and targets of YJHD. GeneCards, DrugBank, DisGeNET, OMIM, and GEO databases were used to obtain target genes for diabetic retinopathy, diabetic cardiomyopathy, and diabetic nephropathy. The GO and KEGG enrichment analyses were performed on the DAVID and STRING platforms. Molecular docking was used to evaluate the binding sites and affinities of compounds and target proteins. Animal experiments were designed to validate the network pharmacology results. Results. Through network pharmacological analysis, oxidative stress, inflammatory response, and apoptosis were identified as key pathological phenotypes for the treatment of diabetic microvascular complications with YJHD. In addition, JNK, p38, and ERK1/2 were predicted as key targets of YJHD in regulating the abovementioned pathological phenotypes. The results of animal experiments showed that YJHD could ameliorate retinal pathological changes of diabetes rats. YJHD can inhibit oxidative stress and inflammation in heart and kidney of diabetic rats. Molecular docking showed strong binding between compounds and JNK, p38, and ERK1/2. Berlambine may play a key role in the treatment process and is considered as a promising regulator of MAPK protein family. The regulatory effects of YJHD on JNK, p38, and ERK1/2 were demonstrated in animal experiments. Conclusions. YJHD may play a therapeutic role in diabetic microvascular complications by regulating oxidative stress, inflammatory response, and apoptosis. The regulation of JNK, p38, and ERK1/2 phosphorylation may be the key to its therapeutic effect.
Collapse
|
14
|
Borgemenke S, Hughes AS. Social Determinants and Health Disparities Pertaining to Diabetes in Appalachia. J Prim Care Community Health 2023; 14:21501319231192327. [PMID: 37571832 PMCID: PMC10422881 DOI: 10.1177/21501319231192327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/18/2023] [Accepted: 07/19/2023] [Indexed: 08/13/2023] Open
Abstract
CONTEXT Diabetes poses a significant threat to public health in the United States, with an estimated total prevalence of 37.3 million individuals in 2019, of which 28.7 million were diagnosed and 8.5 million remained undiagnosed. The high prevalence of diabetes imposes a considerable economic burden on the U.S. healthcare system. Appalachian Ohio is disproportionately impacted with southeastern Ohio exhibiting a diabetes prevalence that exceeds the national average by more than twofold and a critical shortage of healthcare providers. OBJECTIVE To quantify the associations between diabetes prevalence and incidence in Ohio counties, considering various factors that impact health and quality-of-life outcomes. METHODS The data used in this study were obtained from the United States Diabetes Surveillance System (USDSS) on the 88 counties in Ohio. Pearson correlation tests were employed to investigate the relationship between diabetes (prevalence and incidence) and social determinants of health. A t-test and multivariate analysis of variance (MANOVA) test were performed to analyze the disparities in diabetes and social determinants between Appalachian and non-Appalachian counties. RESULTS The results of this study demonstrate notable disparities in diabetes prevalence between Appalachian and non-Appalachian counties (P < .001, α = .05). Furthermore, the MANOVA test revealed significant differences between these 2 groups regarding social determinants of health (P < .05). CONCLUSION These findings suggest that Appalachian counties may face a disproportionate impact from health-related factors and experience limited access to healthcare services. The data highlight the need for focused efforts to address the specific challenges faced by Appalachian counties. Improving access to healthcare services in the Appalachian region is paramount to ensure equitable healthcare and enhance the overall health outcomes of affected communities.
Collapse
Affiliation(s)
- Samuel Borgemenke
- Ohio University Heritage College of Osteopathic Medicine, Athens, OH, USA
| | - Allyson S. Hughes
- Ohio University Heritage College of Osteopathic Medicine, Athens, OH, USA
| |
Collapse
|
15
|
Björkman K, Vissing J, Østergaard E, Bindoff LA, de Coo IFM, Engvall M, Hikmat O, Isohanni P, Kollberg G, Lindberg C, Majamaa K, Naess K, Uusimaa J, Tulinius M, Darin N. Phenotypic spectrum and clinical course of single large-scale mitochondrial DNA deletion disease in the paediatric population: a multicentre study. J Med Genet 2023; 60:65-73. [PMID: 34872991 PMCID: PMC9811091 DOI: 10.1136/jmedgenet-2021-108006] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 11/09/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND Large-scale mitochondrial DNA deletions (LMD) are a common genetic cause of mitochondrial disease and give rise to a wide range of clinical features. Lack of longitudinal data means the natural history remains unclear. This study was undertaken to describe the clinical spectrum in a large cohort of patients with paediatric disease onset. METHODS A retrospective multicentre study was performed in patients with clinical onset <16 years of age, diagnosed and followed in seven European mitochondrial disease centres. RESULTS A total of 80 patients were included. The average age at disease onset and at last examination was 10 and 31 years, respectively. The median time from disease onset to death was 11.5 years. Pearson syndrome was present in 21%, Kearns-Sayre syndrome spectrum disorder in 50% and progressive external ophthalmoplegia in 29% of patients. Haematological abnormalities were the hallmark of the disease in preschool children, while the most common presentations in older patients were ptosis and external ophthalmoplegia. Skeletal muscle involvement was found in 65% and exercise intolerance in 25% of the patients. Central nervous system involvement was frequent, with variable presence of ataxia (40%), cognitive involvement (36%) and stroke-like episodes (9%). Other common features were pigmentary retinopathy (46%), short stature (42%), hearing impairment (39%), cardiac disease (39%), diabetes mellitus (25%) and renal disease (19%). CONCLUSION Our study provides new insights into the phenotypic spectrum of childhood-onset, LMD-associated syndromes. We found a wider spectrum of more prevalent multisystem involvement compared with previous studies, most likely related to a longer time of follow-up.
Collapse
Affiliation(s)
- Kristoffer Björkman
- Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden,The Queen Silvia Children's Hospital, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - John Vissing
- Copenhagen Neuromuscular Centre, Rigshospitalet, Kobenhavn, Denmark
| | - Elsebet Østergaard
- Department of Clinical Genetics, Rigshospitalet, Kobenhavn, Denmark,Department of Clinical Medicine, University of Copenhagen, Kobenhavn, Denmark
| | - Laurence A Bindoff
- Department of Clinical Medicine (K1), University of Bergen, Bergen, Norway,Neuro-SysMed, Department of Neurology, Haukeland University Hospital, Bergen, Norway
| | - Irenaeus F M de Coo
- Department of Toxicogenomics, Unit Clinical Genomics, Maastricht University, Maastricht, The Netherlands,Maastricht University School for Mental Health and Neuroscience, Maastricht, The Netherlands
| | - Martin Engvall
- Center for Inherited Metabolic Diseases, Karolinska University Hospital, Stockholm, Sweden,Department of Molecular Medicine and Surgery, Karolinska Institute, Stockholm, Sweden
| | - Omar Hikmat
- Department of Clinical Medicine (K1), University of Bergen, Bergen, Norway,Department of Pediatrics, Haukeland University Hospital, Bergen, Norway
| | - Pirjo Isohanni
- Research Programs Unit, Stem Cells and Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland,University of Helsinki Children's Hospital, Helsinki, Finland
| | - Gittan Kollberg
- Department of Clinical Chemistry, University of Gothenburg, Gothenburg, Sweden
| | - Christopher Lindberg
- Department of Neurology, Neuromuscular Center, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Kari Majamaa
- Medical Research Center, Oulu University Faculty of Medicine, Oulu, Finland,Medical Research Center, Oulu University Hospital, Oulu, Finland
| | - Karin Naess
- Center for Inherited Metabolic Diseases, Karolinska University Hospital, Stockholm, Sweden,Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden
| | - Johanna Uusimaa
- PEDEGO Research Unit, Oulu University Faculty of Medicine, Oulu, Finland,Clinic for Children and Adolescents and Medical Research Center, Oulu University Hospital, Oulu, Finland
| | - Mar Tulinius
- Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden,The Queen Silvia Children's Hospital, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Niklas Darin
- Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden,The Queen Silvia Children's Hospital, Sahlgrenska University Hospital, Gothenburg, Sweden
| |
Collapse
|
16
|
Al-Ghamdi BA, Al-Shamrani JM, El-Shehawi AM, Al-Johani I, Al-Otaibi BG. Role of mitochondrial DNA in diabetes Mellitus Type I and Type II. Saudi J Biol Sci 2022; 29:103434. [PMID: 36187456 PMCID: PMC9523097 DOI: 10.1016/j.sjbs.2022.103434] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 08/01/2022] [Accepted: 09/01/2022] [Indexed: 12/04/2022] Open
Abstract
Morbidity and mortality from diabetes mellitus and associated illnesses is a major problem across the globe. Anti-diabetic medicines must be improved despite existing breakthroughs in treatment approaches. Diabetes has been linked to mitochondrial dysfunction. As a result, particular mitochondrial diabetes kinds like MIDD (maternally inherited diabetes & deafness) and DAD (diabetic autonomic dysfunction) have been identified and studied (diabetes and Deafness). Some mutations as in mitochondrial DNA (mtDNA), that encodes for a significant portion of mitochondrial proteins as well as mitochondrial tRNA essential for mitochondrial protein biosynthesis, are responsible for hereditary mitochondrial diseases. Tissue-specificity and heteroplasmy have a role in the harmful phenotype of mtDNA mutations, making it difficult to generalise findings from one study to another. There are a huge increase in the number for mtDNA mutations related with human illnesses that have been identified using current sequencing technologies. In this study, we make a list on mtDNA mutations linked with diseases and diabetic illnesses and explore the methods by which they contribute to the pathology's emergence.
Collapse
Affiliation(s)
- Bandar Ali Al-Ghamdi
- Department of Cardiology and Cardiac Surgery, King Fahad Armed Forces Hospital, Jeddah, Saudi Arabia.,Department of Biotechnology, Taif University, Taif City, Saudi Arabia
| | | | | | - Intisar Al-Johani
- Department of Biotechnology, Taif University, Taif City, Saudi Arabia
| | | |
Collapse
|
17
|
Gao L, Li Z, Chang W, Liu Y, Zhang N. Myeloid-derived growth factor regulates high glucose-mediated apoptosis of gingival fibroblasts and induce AKT pathway activation and nuclear factor κB pathway inhibition. J Dent Sci 2022; 18:636-644. [PMID: 37021271 PMCID: PMC10068388 DOI: 10.1016/j.jds.2022.08.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/10/2022] [Indexed: 11/16/2022] Open
Abstract
Background /purpose: Periodontal disease is a chronic inflammatory disease that occurs in the tissues that support and attach teeth. There is considerable evidence of a relationship between diabetes and periodontal disease. Emerging studies have reported that myeloid-derived growth factor (MYDGF) can inhibit apoptosis and inflammation. The purpose of this study was to investigate whether MYDGF mediates the role of hyperglycemia in fibroblasts in periodontitis tissues. Materials and methods Fibroblasts were isolated and cultured from normal gums. Gene expression levels were detected by RT-PCR. The protein level was detected by western blotting. Cell viability was determined by MTT assay. To investigate the role of MYDGF, the plasmid was transfected into fibroblasts. The expression levels of cytokines were determined by ELISA. Results High glucose can down-regulate the expression of MYDGF in human gingival fibroblasts in a time-dependent manner, and decrease the fibroblast activity. SOD level was decreased and MDA level was increased in gingival fibroblasts by high glucose. High glucose up-regulates pro-apoptotic indicator Bax, down-regulates anti-apototic indicator Bcl-2, and increased endoplasmic reticulum stress related indicators Nox 2, GRP78, ATF6, and PERK. In addition, high glucose increased TNF-α, IL-1β, IL-8 and CXCL1 protein levels in fibroblasts. Our study also found that high glucose inhibits the AKT signaling pathway and activates the nuclear factor κB (NF-κB) pathway. Interestingly, overexpression of MYDGF reversed these effects. Conclusion MYDGF is down-regulated in gingival fibroblasts induced by high glucose. Overexpression of MYDGF inhibits apoptosis induced by high glucose, inhibits oxidative stress and cytokine secretion of gingival fibroblasts induced by high glucose, and induces AKT pathway activation and NF-κB pathway inhibition.
Collapse
Affiliation(s)
- Linlin Gao
- Department of Endocrinology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Third Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Zhenqiang Li
- Department of Stomatology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Third Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Wenxiao Chang
- Department of Stomatology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Third Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Yanyan Liu
- Department of Stomatology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Third Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Nan Zhang
- Department of Stomatology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Third Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
- Corresponding author. Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Third Hospital of Shanxi Medical University, No. 99, Longcheng Street, Taiyuan, 030032, Shanxi, China.
| |
Collapse
|
18
|
Prognostic Evaluation of Vitrectomy Assisted by Lucentis in Diabetic Retinopathy and Neovascular Glaucoma. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:4127293. [PMID: 35958912 PMCID: PMC9359820 DOI: 10.1155/2022/4127293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 07/11/2022] [Indexed: 11/18/2022]
Abstract
For verifying the prognosis of Lucentis-assisted vitrectomy (PPV) in diabetic retinopathy (DR) and neovascular glaucoma (NVG), a retrospective analysis of DR and NVG patients who were admitted to our hospital from July 2019 to December 2020 was conducted. According to the treatment protocol, subjects who had PPV intervention were in the control group (CG; n = 38) and those receiving Lucentis adjunctive PPV were included in the intervention group (RG; n = 40). The indicators between groups were listed: treatment success rate, postoperative complication rate, surgical outcome indicators, BCVA, intraocular pressure (IOP) change, foveal thickness, and VEGF level in aqueous humor. Indicators in RG were obviously higher than in CG, such as treatment success rate and surgical outcome indicators. Conversely, lower postoperative complication rate, postoperative BCVA, IOP, retinal fovea thickness, and VEGF level in aqueous humor were found in RG than in CG. Therefore, the study reached the following conclusions about vitrectomy assisted by Lucentis: (1) it effectively increases the success rate of treatment, decreases postoperative complications as well as surgical risks, and improves patients' vision; (2) it promotes the recovery of IOP, reduces macular edema and VEGF levels in aqueous humor, and inhibits the neonatal formation of blood vessels. It is finally confirmed that Lucentis adjuvant PPV in the treatment of DR complicated with NVG is safe and feasible.
Collapse
|
19
|
Wang C, Wang K, Li P. Blueberry anthocyanins extract attenuated diabetic retinopathy by inhibiting endoplasmic reticulum stress via the miR-182/OGG1 axis. J Pharmacol Sci 2022; 150:31-40. [DOI: 10.1016/j.jphs.2022.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 06/08/2022] [Accepted: 06/15/2022] [Indexed: 10/18/2022] Open
|
20
|
Dejkhamron P, Santiprabhob J, Likitmaskul S, Deerochanawong C, Rawdaree P, Tharavanij T, Reutrakul S, Kongkanka C, Suprasongsin C, Numbenjapon N, Sahakitrungruang T, Lertwattanarak R, Engkakul P, Sriwijitkamol A, Korwutthikulrangsri M, Leelawattana R, Phimphilai M, Potisat S, Khananuraksa P, Kunsuikmengrai K, Nitiyanant W. Young-onset diabetes patients in Thailand: Data from Thai Type 1 Diabetes and Diabetes diagnosed Age before 30 years Registry, Care and Network (T1DDAR CN). J Diabetes Investig 2022; 13:796-809. [PMID: 34890117 PMCID: PMC9077742 DOI: 10.1111/jdi.13732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 12/01/2021] [Accepted: 12/08/2021] [Indexed: 11/28/2022] Open
Abstract
AIMS/INTRODUCTION There is a lack of current information regarding young-onset diabetes in Thailand. Thus, the objectives of this study were to describe the types of diabetes, the clinical characteristics, the treatment regimens and achievement of glycemic control in Thai patients with young-onset diabetes. MATERIALS AND METHODS Data of 2,844 patients with diabetes onset before 30 years-of-age were retrospectively reviewed from a diabetes registry comprising 31 hospitals in Thailand. Gestational diabetes was excluded. RESULTS Based on clinical criteria, type 1 diabetes was identified in 62.6% of patients, type 2 diabetes in 30.7%, neonatal diabetes in 0.8%, other monogenic diabetes in 1.7%, secondary diabetes in 3.0%, genetic syndromes associated with diabetes in 0.9% and other types of diabetes in 0.4%. Type 1 diabetes accounted for 72.3% of patients with age of onset <20 years. The proportion of type 2 diabetes was 61.0% of patients with age of onset from 20 to <30 years. Intensive insulin treatment was prescribed to 55.2% of type 1 diabetes patients. Oral antidiabetic agent alone was used in 50.8% of type 2 diabetes patients, whereas 44.1% received insulin treatment. Most monogenic diabetes, secondary diabetes and genetic syndromes associated with diabetes required insulin treatment. Achievement of glycemic control was identified in 12.4% of type 1 diabetes patients, 30% of type 2 diabetes patients, 36.4% of neonatal diabetes patients, 28.3% of other monogenic diabetes patients, 45.6% of secondary diabetes patients and 28% of genetic syndromes associated with diabetes patients. CONCLUSION In this registry, type 1 diabetes remains the most common type and the prevalence of type 2 diabetes increases with age. The majority of patients did not achieve the glycemic target, especially type 1 diabetes patients.
Collapse
Affiliation(s)
- Prapai Dejkhamron
- Division of Endocrinology and MetabolismDepartment of PediatricsFaculty of MedicineChiang Mai UniversityChiang MaiThailand
- Northern Diabetes CenterFaculty of MedicineChiang Mai UniversityChiang MaiThailand
| | - Jeerunda Santiprabhob
- Siriraj Diabetes CenterFaculty of Medicine Siriraj HospitalMahidol UniversityBangkokThailand
- Division of Endocrinology and MetabolismDepartment of PediatricsFaculty of Medicine Siriraj HospitalMahidol UniversityBangkokThailand
| | - Supawadee Likitmaskul
- Siriraj Diabetes CenterFaculty of Medicine Siriraj HospitalMahidol UniversityBangkokThailand
- Division of Endocrinology and MetabolismDepartment of PediatricsFaculty of Medicine Siriraj HospitalMahidol UniversityBangkokThailand
| | - Chaicharn Deerochanawong
- Division of Endocrinology and MetabolismDepartment of MedicineCollege of MedicineRajavithi HospitalRangsit UniversityBangkokThailand
| | - Petch Rawdaree
- Division of Endocrinology and MetabolismDepartment of Internal MedicineFaculty of MedicineVajira HospitalNavamindradhiraj UniversityBangkokThailand
| | - Thipaporn Tharavanij
- Endocrine and Metabolism UnitDepartment of Internal MedicineFaculty of MedicineThammasat UniversityPathum ThaniThailand
- Center of Excellence in Applied EpidemiologyThammasat UniversityBangkokThailand
| | - Sirimon Reutrakul
- Division of Endocrinology and MetabolismDepartment of MedicineFaculty of Medicine Ramathibodi HospitalMahidol UniversityBangkokThailand
| | - Chawkaew Kongkanka
- Endocrinology and Metabolism UnitDepartment of PediatricsQueen Sirikit National Institute of Child HealthBangkokThailand
| | - Chittiwat Suprasongsin
- Research CenterFaculty of Medicine Ramathibodi HospitalMahidol UniversityBangkokThailand
| | - Nawaporn Numbenjapon
- Division of Endocrinology, Diabetes, and MetabolismDepartment of PediatricsPhramongkutklao Hospital and College of MedicineBangkokThailand
| | - Taninee Sahakitrungruang
- Division of Pediatric EndocrinologyDepartment of PediatricsFaculty of MedicineChulalongkorn UniversityBangkokThailand
| | - Raweewan Lertwattanarak
- Siriraj Diabetes CenterFaculty of Medicine Siriraj HospitalMahidol UniversityBangkokThailand
- Division of Endocrinology and MetabolismDepartment of MedicineFaculty of Medicine Siriraj HospitalMahidol UniversityBangkokThailand
| | - Pontipa Engkakul
- Endocrinology and Metabolism UnitDepartment of PediatricsFaculty of MedicineThammasat UniversityPathum ThaniThailand
| | - Apiradee Sriwijitkamol
- Siriraj Diabetes CenterFaculty of Medicine Siriraj HospitalMahidol UniversityBangkokThailand
- Division of Endocrinology and MetabolismDepartment of MedicineFaculty of Medicine Siriraj HospitalMahidol UniversityBangkokThailand
| | - Manassawee Korwutthikulrangsri
- Division of Endocrinology and MetabolismDepartment of PediatricsFaculty of Medicine Ramathibodi HospitalMahidol UniversityBangkokThailand
| | - Rattana Leelawattana
- Division of Endocrinology and MetabolismDepartment of MedicineFaculty of MedicinePrince of Songkla UniversitySongklaThailand
| | - Mattabhorn Phimphilai
- Northern Diabetes CenterFaculty of MedicineChiang Mai UniversityChiang MaiThailand
- Division of Endocrinology and MetabolismDepartment of MedicineFaculty of MedicineChiang Mai UniversityChiang MaiThailand
| | - Somkiat Potisat
- Department of Medical ServicesMinistry of Public HealthNonthaburiThailand
| | | | | | - Wannee Nitiyanant
- Siriraj Diabetes CenterFaculty of Medicine Siriraj HospitalMahidol UniversityBangkokThailand
- Division of Endocrinology and MetabolismDepartment of MedicineFaculty of Medicine Siriraj HospitalMahidol UniversityBangkokThailand
| |
Collapse
|
21
|
Guo J, Chen Y, Xu J, Li L, Dang W, Xiao F, Ren W, Zhu Y, Du Q, Li Q, Li X. Long noncoding RNA PVT1 regulates the proliferation and apoptosis of ARPE-19 cells in vitro via the miR-1301-3p/KLF7 axis. Cell Cycle 2022; 21:1590-1598. [PMID: 35451342 PMCID: PMC9291708 DOI: 10.1080/15384101.2022.2058839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Diabetic retinopathy (DR) as a frequent diabetic microvascular complication shows signs in one-third of diabetic patients. Long non-coding RNAs (lncRNAs) have drawn increasing attention because of their regulatory roles in DR. LncRNA plasmacytoma variant translocation 1 (PVT1) is documented to be upregulated in diabetes-related diseases, while its effects in DR remains unexplored. ARPE-19 cells under the treatment of high-glucose (HG) were used as DR cell models. The gene expression in ARPE-19 cells was examined using RT-qPCR. The viability and apoptosis of ARPE-19 cells were determined by MTT and TUNEL assays. The levels of inflammation-associated proteins or mRNA were measured using western blot. Luciferase reporter assay and RNA pull down assay were conducted for the exploration of the underlying mechanism of PVT1. PVT1 was revealed to be upregulated in DR cell models. Silencing of PVT1 promoted the viability and inhibited apoptosis of HG-stimulated ARPE-19 cells. The results revealed that PVT1 can bind with miR-1301-3p. PVT1 negatively modulated miR-1301-3p expression. Additionally, KLF7 was targeted by miR-1301-3p. PVT1 upregulated KLF7 expression by binding with miR-1301-3p. The silenced PVT1-mediated influence on cell viability and cell apoptosis was rescued by overexpression of KLF7. PVT1 suppresses proliferation and promotes apoptosis of ARPE-19 cells treated with HG in vitro by binding with miR-1301-3p to upregulate KLF7.
Collapse
Affiliation(s)
- Jianjin Guo
- Department of General Medicine, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, Shanxi, China.,Department of General Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yuan Chen
- Department of General Medicine, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, Shanxi, China.,Department of General Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jiajia Xu
- Department of General Medicine, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, Shanxi, China.,Department of General Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Liqi Li
- Department of General Medicine, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, Shanxi, China.,Department of General Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wenjiao Dang
- School of Medicine, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Feng Xiao
- Department of Oncology, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Wei Ren
- Department of Endocrinology and Metabolism, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Taiyuan, Shanxi, China
| | - Yikun Zhu
- Department of Endocrinology and Metabolism, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Qiujing Du
- School of Medicine, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Qian Li
- School of Medicine, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Xing Li
- Department of Endocrinology and Metabolism, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| |
Collapse
|
22
|
Tian C, Liu Y, Li Z, Zhu P, Zhao M. Mitochondria Related Cell Death Modalities and Disease. Front Cell Dev Biol 2022; 10:832356. [PMID: 35321239 PMCID: PMC8935059 DOI: 10.3389/fcell.2022.832356] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 01/28/2022] [Indexed: 12/12/2022] Open
Abstract
Mitochondria are well known as the centre of energy metabolism in eukaryotic cells. However, they can not only generate ATP through the tricarboxylic acid cycle and oxidative phosphorylation but also control the mode of cell death through various mechanisms, especially regulated cell death (RCD), such as apoptosis, mitophagy, NETosis, pyroptosis, necroptosis, entosis, parthanatos, ferroptosis, alkaliptosis, autosis, clockophagy and oxeiptosis. These mitochondria-associated modes of cell death can lead to a variety of diseases. During cell growth, these modes of cell death are programmed, meaning that they can be induced or predicted. Mitochondria-based treatments have been shown to be effective in many trials. Therefore, mitochondria have great potential for the treatment of many diseases. In this review, we discuss how mitochondria are involved in modes of cell death, as well as basic research and the latest clinical progress in related fields. We also detail a variety of organ system diseases related to mitochondria, including nervous system diseases, cardiovascular diseases, digestive system diseases, respiratory diseases, endocrine diseases, urinary system diseases and cancer. We highlight the role that mitochondria play in these diseases and suggest possible therapeutic directions as well as pressing issues that need to be addressed today. Because of the key role of mitochondria in cell death, a comprehensive understanding of mitochondria can help provide more effective strategies for clinical treatment.
Collapse
Affiliation(s)
- Chuwen Tian
- Department of Pediatrics, The Third Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Yifan Liu
- Department of Pediatrics, The Third Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Zhuoshu Li
- Department of Pediatrics, The Third Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Ping Zhu
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- *Correspondence: Ping Zhu, ; Mingyi Zhao,
| | - Mingyi Zhao
- Department of Pediatrics, The Third Xiangya Hospital, Central South University, Changsha, China
- *Correspondence: Ping Zhu, ; Mingyi Zhao,
| |
Collapse
|
23
|
Wang J, Liu F, Kong R, Han X. Association Between Globulin and Diabetic Nephropathy in Type2 Diabetes Mellitus Patients: A Cross-Sectional Study. Front Endocrinol (Lausanne) 2022; 13:890273. [PMID: 35898464 PMCID: PMC9311329 DOI: 10.3389/fendo.2022.890273] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 06/03/2022] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND With the development of economy, the living standard of people all over the world has been greatly improved, and the incidence of diabetes is also increasing. Many people with diabetes also develop other complications that reduce their quality of life. Diabetic nephropathy is a common complication of type2 diabetes. Understanding the related factors of diabetic nephropathy is greatly significant to control the occurrence of diabetic nephropathy and improve patient's life quality. DATA AND METHODS Data were collected from 2009 to 2018 in NHANES. Curve fitting graph was performed to investigate the association between globulin (GLB) and diabetic nephropathy(DN). Four logistic regression models were conducted to control the potential confounding factors. Subgroup analysis was carried out to assess the stability of results. RESULTS GLB was positively correlated with the occurrence of DN after controlling for potential confounders. Higher GLB was associated with an increased risk of diabetic nephropathy [odds ratio(OR), 1.10; 95% confidence interval (CI), 1.07-1.13, P < 0.001]. CONCLUSIONS In this cross-sectional study, GLB was significant positively correlated with the occurrence of DN in patients with type2 diabetes mellitus.
Collapse
|
24
|
Roudbar Mohammadi S, Zarei N, Roudbary M, dos Santos AS, Nikoomanesh F, Mohammadi R, Shirvan B, Yaalimadad S. Prevalence, molecular identification, and genotyping of Candida species recovered from oral cavity among patients with diabetes mellitus from Tehran, Iran. Adv Biomed Res 2022; 11:29. [PMID: 35722454 PMCID: PMC9201225 DOI: 10.4103/abr.abr_26_21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 05/28/2021] [Accepted: 11/15/2021] [Indexed: 11/04/2022] Open
|
25
|
Wang J, Zhao X, Tian G, Liu X, Gui C, Xu L. Down-Regulation of miR-138 Alleviates Inflammatory Response and Promotes Wound Healing in Diabetic Foot Ulcer Rats via Activating PI3K/AKT Pathway and hTERT. Diabetes Metab Syndr Obes 2022; 15:1153-1163. [PMID: 35444435 PMCID: PMC9015052 DOI: 10.2147/dmso.s359759] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 04/01/2022] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVE To study the role of miR-138 on the repair of diabetic foot ulcer (DFU) and further to explore its possible mechanism. MATERIALS AND METHODS miR-138 inhibitor, IGF-1, LY294002 were used in DFU rat mode, and the mRNA expression of miR-138 was detected. HE staining was used to observe the histological changes of skin ulcer in rats. The level of inflammation, wound healing, and blood vessel formation-related factors were detected by ELISA and immunohistochemical. The expression of VEGF and PI3K/AKT pathway-related proteins were detected by Western blot. To further determine the underlying mechanism of miR-138 in the repair of DFU, telomerase inhibitor BIBR-1232 was used in HUVECs. Dual-luciferase assay was used to determine the target relationship between miR-138 and hTERT. CCK-8, transwell, and tube formation assays were conducted to observe the biological behavior of HUVECs. Inflammatory cytokines and PI3K/AKT pathway-related proteins were also measured by ELISA and Western blot. RESULTS The mRNA expression of miR-138 in DFU rat was increased and ulcer of diabetic foot rats was improved after silencing miR-138. The results of cellular bioactivity in vitro experiment were consistent with that in vivo. Meanwhile, after silencing miR-138, the level of inflammatory cytokines was decreased, while the level of anti-inflammatory and healing factors was increased in vivo and vitro. Moreover, the ratios of p-PI3K/PI3K and p-AKT/AKT were upregulated after treated with miR-138 inhibitor and miR-138 was negatively regulated the expression of hTERT. However, the inhibitory effect on inflammatory response and the promotion effect on wound healing of miR-138 inhibitor were reversed by LY294002 and BIBR-1232. CONCLUSION Down-regulation of miR-138 could alleviate inflammatory response and promote wound healing in DFU rats by activating PI3K/AKT pathway and hTERT.
Collapse
Affiliation(s)
- Jian Wang
- School of Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250012, People’s Republic of China
- Department of Orthopedics, Qufu Hospital of TCM, Qufu, 273100, People’s Republic of China
| | - Xiaodan Zhao
- Image Center, Shandong Provincial Third Hospital, Jinan, 250000, People’s Republic of China
| | - Guichang Tian
- Department of Orthopedics, Qufu Hospital of TCM, Qufu, 273100, People’s Republic of China
| | - Xiaochao Liu
- Department of Orthopedics, Qufu Hospital of TCM, Qufu, 273100, People’s Republic of China
| | - Chengyan Gui
- Department of Orthopedics, Qufu Hospital of TCM, Qufu, 273100, People’s Republic of China
| | - Lin Xu
- School of Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250012, People’s Republic of China
- Department of Orthopedics, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, 264100, People’s Republic of China
- Correspondence: Lin Xu, Department of Orthopedics, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, 264100, People’s Republic of China, Tel +86-13805350031, Email ;
| |
Collapse
|
26
|
Shi J, Zhao Q, Hao DD, Miao HX, Wan S, Zhou CH, Wang SY, Chen SY, Shang J, Feng TH. Gut microbiota profiling revealed the regulating effects of salidroside on iron metabolism in diabetic mice. Front Endocrinol (Lausanne) 2022; 13:1014577. [PMID: 36213297 PMCID: PMC9539846 DOI: 10.3389/fendo.2022.1014577] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 08/29/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Diabetes is a common metabolic disease that is associated with gut microbiota dysbiosis and iron metabolism. Salidroside (SAL) is the main ingredient of the traditional Chinese herb Rhodiola, previous studies have shown that SAL could reshape the gut microbiota and limit iron accumulation. Therefore, it is possible that SAL can act as an alternative therapy for diabetes, and its underlying mechanism is worth exploring. METHODS SAL was used to treat diabetic db/db mice. Serum glucose and iron levels and the histopathology of myocardial fibres were evaluated. The gut microbiota composition was determined by 16S rRNA Illumina sequencing technology. RESULTS Treatment with SAL significantly reduced blood glucose and ameliorated diabetic cardiomyopathy in diabetic db/db mice, which was accompanied by inhibited ferroptosis and iron accumulation. Furthermore, the 16S rRNA sequencing results showed that SAL induced a change in the gut microbiota composition. Overall, SAL could increase the proportion of probiotic bacteria and decrease Lactobacillus to improve gut microbiota. Specifically, SAL increased the ratio of Bacteroidetes to Firmicutes in diabetic mice. The most significant biomarker was the genus Lactobacillus between the MD group and the SAL group. In addition, COG and KEGG analyses suggested that SAL mainly participated in nutrient metabolism, among them iron metabolism was associated with the abundance of Lactobacillus. CONCLUSIONS SAL could reduce the glucose level and protect against diabetic cardiomyopathy in diabetic mice, which might be mediated by the change in the gut microbiota and the regulation of iron metabolism. The findings suggested that SAL was a promising complementary option for diabetes therapy.
Collapse
Affiliation(s)
- Jing Shi
- Hospital of Chengdu Office of People’s Government of Tibetan Autonomous Region (Hospital.C.T.), Chengdu, China
| | - Qin Zhao
- Hospital of Chengdu Office of People’s Government of Tibetan Autonomous Region (Hospital.C.T.), Chengdu, China
| | - Dou Dou Hao
- Hospital of Chengdu Office of People’s Government of Tibetan Autonomous Region (Hospital.C.T.), Chengdu, China
| | - Hong Xia Miao
- Department of Laboratory Medicine, Qingdao Central Hospital, Qingdao, China
| | - Sha Wan
- Hospital of Chengdu Office of People’s Government of Tibetan Autonomous Region (Hospital.C.T.), Chengdu, China
| | - Chao Hua Zhou
- Hospital of Chengdu Office of People’s Government of Tibetan Autonomous Region (Hospital.C.T.), Chengdu, China
| | - Si Yu Wang
- Hospital of Chengdu Office of People’s Government of Tibetan Autonomous Region (Hospital.C.T.), Chengdu, China
| | - Si Yuan Chen
- Hospital of Chengdu Office of People’s Government of Tibetan Autonomous Region (Hospital.C.T.), Chengdu, China
| | - Jin Shang
- Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
- *Correspondence: Tian Hang Feng, ; Jin Shang,
| | - Tian Hang Feng
- Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
- *Correspondence: Tian Hang Feng, ; Jin Shang,
| |
Collapse
|
27
|
Zhang C, Yao H, Ma Q, Yu B. Ultrasensitive glucose detection from tears and saliva through integrating a glucose oxidase-coupled DNAzyme and CRISPR-Cas12a. Analyst 2021; 146:6576-6581. [PMID: 34586111 DOI: 10.1039/d1an01385h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The accurate and sensitive detection of glucose from secretory clinical samples, such as tears and saliva, remains a great challenge. In this research, a novel ultrasensitive glucose detection method consisting of a glucose oxidase (GOx), pistol-like DNAzyme (PLDz), and CRISPR-Cas12a system is proposed. First, the oxidation of glucose catalyzed by GOx leads to the production of H2O2; the self-cleavage activity of PLDz is activated after recognition of the produced H2O2. The two procedures triggered by COx and PLDz play an important role in accurately identifying glucose and converting glucose signals to nucleic acids. The obtained PLDz fragments can be recognized by the Cas12 enzyme and thus activate the trans-cleavage activity of the Cas12a enzyme. Finally, the surrounding reporter probes are cut by the Cas12a enzyme to produce fluorescence signals. In summary, an ultra-sensitive and specific fluorescence method has been developed for glucose detection from secretory clinical samples, which could potentially contribute to the noninvasive diagnosis of diabetes mellitus.
Collapse
Affiliation(s)
- Caiying Zhang
- Department of Endocrinology, Zhuji Affiliated Hospital of Shaoxing University, Zhuji City, Zhejiang Province, 311800, China
| | - Hongfeng Yao
- Department of Clinical Laboratory, Zhuji Affiliated Hospital of Shaoxing University, Zhuji City, Zhejiang Province, 311800, China
| | - Qiang Ma
- Department of Endocrinology, Zhuji Affiliated Hospital of Shaoxing University, Zhuji City, Zhejiang Province, 311800, China
| | - Bin Yu
- Department of medical administration, the Second Affiliated Hospital of Zhejiang University, Hangzhou City, Zhejiang Province, 312000, China.
| |
Collapse
|
28
|
The Role of Mitochondrial Mutations and Chronic Inflammation in Diabetes. Int J Mol Sci 2021; 22:ijms22136733. [PMID: 34201756 PMCID: PMC8268113 DOI: 10.3390/ijms22136733] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 06/16/2021] [Accepted: 06/19/2021] [Indexed: 02/07/2023] Open
Abstract
Diabetes mellitus and related disorders significantly contribute to morbidity and mortality worldwide. Despite the advances in the current therapeutic methods, further development of anti-diabetic therapies is necessary. Mitochondrial dysfunction is known to be implicated in diabetes development. Moreover, specific types of mitochondrial diabetes have been discovered, such as MIDD (maternally inherited diabetes and deafness) and DAD (diabetes and Deafness). Hereditary mitochondrial disorders are caused by certain mutations in the mitochondrial DNA (mtDNA), which encodes for a substantial part of mitochondrial proteins and mitochondrial tRNA necessary for mitochondrial protein synthesis. Study of mtDNA mutations is challenging because the pathogenic phenotype associated with such mutations depends on the level of its heteroplasmy (proportion of mtDNA copies carrying the mutation) and can be tissue-specific. Nevertheless, modern sequencing methods have allowed describing and characterizing a number of mtDNA mutations associated with human disorders, and the list is constantly growing. In this review, we provide a list of mtDNA mutations associated with diabetes and related disorders and discuss the mechanisms of their involvement in the pathology development.
Collapse
|
29
|
Mkaouar-Rebai E, Ammar M, Sfaihi L, Alila-Fersi O, Maalej M, Felhi R, Hachicha M, Fakhfakh F. Mitochondrial disease patients with novel ND4 12058A > C and ND1 m.3911A > G variations: implications for a role in the phenotype following a bioinformatic investigation. Mol Biol Rep 2021; 48:4373-4382. [PMID: 34089464 DOI: 10.1007/s11033-021-06452-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 05/27/2021] [Indexed: 10/21/2022]
Abstract
Mitochondrial diseases include a wide group of clinically heterogeneous disorders caused by a dysfunction of the mitochondrial respiratory chain and can be related to mutations in nuclear or mitochondrial DNA genes. In the present report, we performed a whole mitochondrial genome screening in two patients with clinical features of mitochondrial diseases. Mutational analysis revealed the presence of two undescribed heteroplasmic mitochondrial variations, the m.3911A > G (E202G) variant in the MT-ND1 gene found in two patients (P1 and P2) and the m.12058A > C (E433D) pathogenic variant in the MT-ND4 gene present only in patient P2 who had a more severe phenotype. These two substitutions were predicted to be damaging by several bioinformatics tools and lead to amino acid changes in two conserved residues localized in two important functional domains of the mitochondrial subunits of complex I. Furthermore, the 3D modeling suggested that the two amino acid changes could therefore alter the structure of the two subunits and may decrease the stability and the function of complex I. The two described pathogenic variants found in patient P2 could act synergically and alter the complex I function by affecting the proton pumping processes and the energy production and then could explain the severe phenotype compared to patient P1 presenting only the E202G substitution in ND1.
Collapse
Affiliation(s)
- Emna Mkaouar-Rebai
- Molecular and Functional Genetics Laboratory, Department of Life Science, Faculty of Sciences of Sfax, The University of Sfax, Sfax, Tunisia.
| | - Marwa Ammar
- Molecular and Functional Genetics Laboratory, Department of Life Science, Faculty of Sciences of Sfax, The University of Sfax, Sfax, Tunisia
| | - Lamia Sfaihi
- Department of Pediatrics, C.H.U. Hedi Chaker, Sfax, Tunisia
| | - Olfa Alila-Fersi
- Molecular and Functional Genetics Laboratory, Department of Life Science, Faculty of Sciences of Sfax, The University of Sfax, Sfax, Tunisia
| | - Marwa Maalej
- Molecular and Functional Genetics Laboratory, Department of Life Science, Faculty of Sciences of Sfax, The University of Sfax, Sfax, Tunisia
| | - Rahma Felhi
- Molecular and Functional Genetics Laboratory, Department of Life Science, Faculty of Sciences of Sfax, The University of Sfax, Sfax, Tunisia
| | | | - Faiza Fakhfakh
- Molecular and Functional Genetics Laboratory, Department of Life Science, Faculty of Sciences of Sfax, The University of Sfax, Sfax, Tunisia
| |
Collapse
|
30
|
Nouraei H, Jahromi MG, Jahromi LR, Zomorodian K, Pakshir K. Potential Pathogenicity of Candida Species Isolated from Oral Cavity of Patients with Diabetes Mellitus. BIOMED RESEARCH INTERNATIONAL 2021; 2021:9982744. [PMID: 34136578 PMCID: PMC8175137 DOI: 10.1155/2021/9982744] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 04/18/2021] [Accepted: 05/12/2021] [Indexed: 01/12/2023]
Abstract
INTRODUCTION In the recent decade, the increased immunocompromised population such as diabetic patients makes a high incidence of invasive Candida infections. Diabetes mellitus is the most common endocrine metabolic disorder, and diabetic patients are more susceptible to oral candidiasis infection. Candidiasis is an opportunistic fungal infection caused by many species of Candida. Secretion of exoenzymes plays an important role in the virulence and pathogenesis of Candida species. The aim of this study was to evaluate the potential role of phospholipase, esterase, and hemolytic activity of Candida species isolated from oral cavity lesions of diabetic patients. METHODS A total of 108 Candida species including 75 Candida albicans and 33 non-Candida albicans species were recovered from the oral cavity of diabetic patients included in our study. Egg yolk agar, Tween 80 opacity medium, and blood agar plate assays were used for determining phospholipase, esterase, and hemolytic activities, respectively. RESULTS Candida albicans species had the most exoenzyme activity in comparison to non-albicans isolates. Candida albicans isolates showed 97.3%, 100%, and 77.3% phospholipase, hemolysin, and esterase activities, respectively. The difference between Candida albicans and non-Candida albicans was significant in phospholipase (P < 0.001) and hemolytic activity (P = 0.027), but not significant in esterase activity (P = 0.076). CONCLUSION This study showed that most of the isolates had different enzymatic patterns, and Candida albicans isolates had the most exoenzyme activity. So due to the potential effects of these enzymes in pathogenesis and virulence effects of Candida species, we can conclude that the severity of extracellular enzymes may play a role in the severity of signs and symptoms of Candida oral cavity infections in diabetic patients.
Collapse
Affiliation(s)
- Hasti Nouraei
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehdi Ghaderian Jahromi
- Department of Radiology, School of Medicine, Medical Imaging Research Center, Shiraz University of Medicine Sciences, Shiraz, Iran
| | - Leila Razeghian Jahromi
- Department of Psychiatry, School of Medicine, Shiraz University of Medicine Sciences, Shiraz, Iran
| | - Kamiar Zomorodian
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
- Basic Sciences in Infectious Diseases Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Keyvan Pakshir
- Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
- Basic Sciences in Infectious Diseases Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
31
|
Zhunina OA, Yabbarov NG, Grechko AV, Starodubova AV, Ivanova E, Nikiforov NG, Orekhov AN. The Role of Mitochondrial Dysfunction in Vascular Disease, Tumorigenesis, and Diabetes. Front Mol Biosci 2021; 8:671908. [PMID: 34026846 PMCID: PMC8138126 DOI: 10.3389/fmolb.2021.671908] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 04/14/2021] [Indexed: 12/16/2022] Open
Abstract
Mitochondrial dysfunction is known to be associated with a wide range of human pathologies, such as cancer, metabolic, and cardiovascular diseases. One of the possible ways of mitochondrial involvement in the cellular damage is excessive production of reactive oxygen and nitrogen species (ROS and RNS) that cannot be effectively neutralized by existing antioxidant systems. In mitochondria, ROS and RNS can contribute to protein and mitochondrial DNA (mtDNA) damage causing failure of enzymatic chains and mutations that can impair mitochondrial function. These processes further lead to abnormal cell signaling, premature cell senescence, initiation of inflammation, and apoptosis. Recent studies have identified numerous mtDNA mutations associated with different human pathologies. Some of them result in imbalanced oxidative phosphorylation, while others affect mitochondrial protein synthesis. In this review, we discuss the role of mtDNA mutations in cancer, diabetes, cardiovascular diseases, and atherosclerosis. We provide a list of currently described mtDNA mutations associated with each pathology and discuss the possible future perspective of the research.
Collapse
Affiliation(s)
- Olga A. Zhunina
- Chemical Biology Department, Russian Research Center for Molecular Diagnostics and Therapy, Moscow, Russia
| | - Nikita G. Yabbarov
- Chemical Biology Department, Russian Research Center for Molecular Diagnostics and Therapy, Moscow, Russia
| | - Andrey V. Grechko
- Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology, Moscow, Russia
| | | | - Ekaterina Ivanova
- Department of Basic Research, Skolkovo Innovative Center, Institute for Atherosclerosis Research, Moscow, Russia
| | - Nikita G. Nikiforov
- National Medical Research Center of Cardiology, Institute of Experimental Cardiology, Moscow, Russia
- Institute of Gene Biology, Moscow, Russia
- Laboratory of Cellular and Molecular Pathology of Cardiovascular System, Institute of Human Morphology, Moscow, Russia
| | - Alexander N. Orekhov
- Laboratory of Cellular and Molecular Pathology of Cardiovascular System, Institute of Human Morphology, Moscow, Russia
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Moscow, Russia
| |
Collapse
|
32
|
Zempo H, Kim SJ, Fuku N, Nishida Y, Higaki Y, Wan J, Yen K, Miller B, Vicinanza R, Miyamoto-Mikami E, Kumagai H, Naito H, Xiao J, Mehta HH, Lee C, Hara M, Patel YM, Setiawan VW, Moore TM, Hevener AL, Sutoh Y, Shimizu A, Kojima K, Kinoshita K, Arai Y, Hirose N, Maeda S, Tanaka K, Cohen P. A pro-diabetogenic mtDNA polymorphism in the mitochondrial-derived peptide, MOTS-c. Aging (Albany NY) 2021; 13:1692-1717. [PMID: 33468709 PMCID: PMC7880332 DOI: 10.18632/aging.202529] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 12/29/2020] [Indexed: 12/14/2022]
Abstract
Type 2 Diabetes (T2D) is an emerging public health problem in Asia. Although ethnic specific mtDNA polymorphisms have been shown to contribute to T2D risk, the functional effects of the mtDNA polymorphisms and the therapeutic potential of mitochondrial-derived peptides at the mtDNA polymorphisms are underexplored. Here, we showed an Asian-specific mitochondrial DNA variation m.1382A>C (rs111033358) leads to a K14Q amino acid replacement in MOTS-c, an insulin sensitizing mitochondrial-derived peptide. Meta-analysis of three cohorts (n = 27,527, J-MICC, MEC, and TMM) show that males but not females with the C-allele exhibit a higher prevalence of T2D. In J-MICC, only males with the C-allele in the lowest tertile of physical activity increased their prevalence of T2D, demonstrating a kinesio-genomic interaction. High-fat fed, male mice injected with MOTS-c showed reduced weight and improved glucose tolerance, but not K14Q-MOTS-c treated mice. Like the human data, female mice were unaffected. Mechanistically, K14Q-MOTS-c leads to diminished insulin-sensitization in vitro. Thus, the m.1382A>C polymorphism is associated with susceptibility to T2D in men, possibly interacting with exercise, and contributing to the risk of T2D in sedentary males by reducing the activity of MOTS-c.
Collapse
Affiliation(s)
- Hirofumi Zempo
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan.,Department of Administrative Nutrition, Faculty of Health and Nutrition, Tokyo Seiei College, Tokyo, Japan
| | - Su-Jeong Kim
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA 90089, USA
| | - Noriyuki Fuku
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan
| | - Yuichiro Nishida
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Yasuki Higaki
- Faculty of Sports and Health Science, Fukuoka University, Fukuoka, Japan
| | - Junxiang Wan
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA 90089, USA
| | - Kelvin Yen
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA 90089, USA
| | - Brendan Miller
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA 90089, USA
| | - Roberto Vicinanza
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA 90089, USA
| | - Eri Miyamoto-Mikami
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan
| | - Hiroshi Kumagai
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan.,Japan Society for the Promotion of Science, Tokyo, Japan
| | - Hisashi Naito
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan
| | - Jialin Xiao
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA 90089, USA
| | - Hemal H Mehta
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA 90089, USA
| | - Changhan Lee
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA 90089, USA
| | - Megumi Hara
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Yesha M Patel
- Department of Preventive Medicine, Keck School of Medicine of University of Southern California, Los Angeles, CA 90033, USA
| | - Veronica W Setiawan
- Department of Preventive Medicine, Keck School of Medicine of University of Southern California, Los Angeles, CA 90033, USA
| | - Timothy M Moore
- Division of Endocrinology, Diabetes and Hypertension, Department of Medicine and the Iris Cantor-UCLA Women's Health Research Center at the David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Andrea L Hevener
- Division of Endocrinology, Diabetes and Hypertension, Department of Medicine and the Iris Cantor-UCLA Women's Health Research Center at the David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Yoichi Sutoh
- Division of Biomedical Information Analysis, Iwate Tohoku Medical Megabank Organization, Disaster Reconstruction Center, Iwate Medical University, Iwate, Japan
| | - Atsushi Shimizu
- Division of Biomedical Information Analysis, Iwate Tohoku Medical Megabank Organization, Disaster Reconstruction Center, Iwate Medical University, Iwate, Japan
| | - Kaname Kojima
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Miyagi, Japan
| | - Kengo Kinoshita
- Department of Integrative Genomics, Tohoku Medical Megabank Organization, Tohoku University, Miyagi, Japan
| | - Yasumichi Arai
- Center for Supercentenarian Medical Research, Keio University School of Medicine, Tokyo, Japan
| | - Nobuyoshi Hirose
- Center for Supercentenarian Medical Research, Keio University School of Medicine, Tokyo, Japan
| | - Seiji Maeda
- Faculty of Health and Sport Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Keitaro Tanaka
- Department of Preventive Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Pinchas Cohen
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA 90089, USA
| |
Collapse
|
33
|
Yeung RO, Al Jundi M, Gubbi S, Bompu ME, Sirrs S, Tarnopolsky M, Hannah-Shmouni F. Management of mitochondrial diabetes in the era of novel therapies. J Diabetes Complications 2021; 35:107584. [PMID: 32331977 PMCID: PMC7554068 DOI: 10.1016/j.jdiacomp.2020.107584] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 02/12/2020] [Accepted: 03/10/2020] [Indexed: 12/19/2022]
Abstract
Mitochondrial disorders refer to the complex group of conditions affecting energy metabolism. A number of mitochondrial disorders can lead to the development of diabetes mellitus, and mitochondrial diabetes is thought to account for up to 3% of all diabetes mellitus cases. Depending on the degree of preservation of beta cell secretory capacity and peripheral muscle insulin sensitivity, the phenotype of mitochondrial diabetes may resemble that of type 1 or type 2 diabetes. Additionally, mitochondrial diabetes may rarely present with diabetic ketoacidosis, and can be distinguished from other forms of monogenic diabetes including maturity onset diabetes of the young by the presence of multi-organ involvement, particularly pre-senile sensorineural hearing loss, maternal transmission, and later-onset diagnosis, typically affecting adults over 35 years. Various guidelines on diabetes care do not address this important subset of cases, and this diagnosis is easily missed. Additionally, there is paucity of data on tailored diabetes therapies for mitochondrial diabetes, particularly in the era of novel therapies including glucagon-like peptide-1 receptor agonist and sodium glucose co-transporter-2 inhibitors. Here, we report three patients with mitochondrial diabetes who responded well to the addition of these novel agents and propose a new treatment algorithm for this condition.
Collapse
Affiliation(s)
- Roseanne O Yeung
- Division of Endocrinology and Metabolism, Department of Medicine, University of Alberta, Edmonton, Canada.
| | - Mohammad Al Jundi
- Section on Endocrinology & Genetics (SEGEN), National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| | - Sriram Gubbi
- Metabolic Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Maria E Bompu
- 1st Department of Pediatrics, Aghia Sofia Children's Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Sandra Sirrs
- Division of Endocrinology, Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Mark Tarnopolsky
- Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada
| | - Fady Hannah-Shmouni
- Section on Endocrinology & Genetics (SEGEN), National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, USA
| |
Collapse
|
34
|
Abstract
Although type 1 diabetes mellitus and, to a lesser extent, type 2 diabetes mellitus, are the prevailing forms of diabetes in youth, atypical forms of diabetes are not uncommon and may require etiology-specific therapies. By some estimates, up to 6.5% of children with diabetes have monogenic forms. Mitochondrial diabetes and cystic fibrosis related diabetes are less common but often noted in the underlying disease. Atypical diabetes should be considered in patients with a known disorder associated with diabetes, aged less than 25 years with nonautoimmune diabetes and without typical characteristics of type 2 diabetes mellitus, and/or with comorbidities associated with atypical diabetes.
Collapse
Affiliation(s)
- Jaclyn Tamaroff
- Division of Endocrinology and Diabetes, Children's Hospital of Philadelphia, 3500 Civic Center Boulevard, 12th Floor, Philadelphia, PA 19104, USA.
| | - Marissa Kilberg
- Division of Endocrinology and Diabetes, Children's Hospital of Philadelphia, 3500 Civic Center Boulevard, 12th Floor, Philadelphia, PA 19104, USA
| | - Sara E Pinney
- Division of Endocrinology and Diabetes, Children's Hospital of Philadelphia, 3500 Civic Center Boulevard, 12th Floor, Philadelphia, PA 19104, USA
| | - Shana McCormack
- Division of Endocrinology and Diabetes, Children's Hospital of Philadelphia, 3500 Civic Center Boulevard, 12th Floor, Philadelphia, PA 19104, USA
| |
Collapse
|
35
|
Prasun P. Role of mitochondria in pathogenesis of type 2 diabetes mellitus. J Diabetes Metab Disord 2020; 19:2017-2022. [PMID: 33520874 DOI: 10.1007/s40200-020-00679-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 10/28/2020] [Indexed: 01/09/2023]
Abstract
Type 2 diabetes mellitus (T2DM) is global health problem. An estimated 425 million people in the world had diabetes in 2017. It is a major cause of morbidity and mortality worldwide. Although, pathogenesis of T2DM and its complications have been focus of medical research for long, much remains to be learned. A better understanding of molecular pathogenesis is essential for more effective preventive and therapeutic interventions. Role of mitochondria in pathogenesis of metabolic problems such as obesity, metabolic syndrome, and T2DM is the focus of many recent research studies. Mitochondrial dysfunction contributes to the oxidative stress and systemic inflammation leading to insulin resistance (IR). Mitochondria are also essential for pancreatic beta cell insulin secretion. Hence, mitochondria are important players in the pathogenesis of T2DM. In this article, pathogenesis of T2DM is examined from a mitochondrial perspective.
Collapse
Affiliation(s)
- Pankaj Prasun
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place - Box 1497, New York, NY 10029 USA
| |
Collapse
|
36
|
Manolis AS, Manolis AA, Manolis TA, Apostolaki NE, Apostolopoulos EJ, Melita H, Katsiki N. Mitochondrial dysfunction in cardiovascular disease: Current status of translational research/clinical and therapeutic implications. Med Res Rev 2020; 41:275-313. [PMID: 32959403 DOI: 10.1002/med.21732] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 09/04/2020] [Accepted: 09/07/2020] [Indexed: 12/14/2022]
Abstract
Mitochondria provide energy to the cell during aerobic respiration by supplying ~95% of the adenosine triphosphate (ATP) molecules via oxidative phosphorylation. These organelles have various other functions, all carried out by numerous proteins, with the majority of them being encoded by nuclear DNA (nDNA). Mitochondria occupy ~1/3 of the volume of myocardial cells in adults, and function at levels of high-efficiency to promptly meet the energy requirements of the myocardial contractile units. Mitochondria have their own DNA (mtDNA), which contains 37 genes and is maternally inherited. Over the last several years, a variety of functions of these organelles have been discovered and this has led to a growing interest in their involvement in various diseases, including cardiovascular (CV) diseases. Mitochondrial dysfunction relates to the status where mitochondria cannot meet the demands of a cell for ATP and there is an enhanced formation of reactive-oxygen species. This dysfunction may occur as a result of mtDNA and/or nDNA mutations, but also as a response to aging and various disease and environmental stresses, leading to the development of cardiomyopathies and other CV diseases. Designing mitochondria-targeted therapeutic strategies aiming to maintain or restore mitochondrial function has been a great challenge as a result of variable responses according to the etiology of the disorder. There have been several preclinical data on such therapies, but clinical studies are scarce. A major challenge relates to the techniques needed to eclectically deliver the therapeutic agents to cardiac tissues and to damaged mitochondria for successful clinical outcomes. All these issues and progress made over the last several years are herein reviewed.
Collapse
Affiliation(s)
- Antonis S Manolis
- First Department of Cardiology, Athens University School of Medicine, Athens, Greece
| | | | | | | | | | | | - Niki Katsiki
- First Department of Internal Medicine, Division of Endocrinology and Metabolism, Diabetes Center, Medical School, AHEPA University Hospital, Thessaloniki, Greece
| |
Collapse
|
37
|
Zhang S, Cao M, Fang F. The Role of Epigallocatechin-3-Gallate in Autophagy and Endoplasmic Reticulum Stress (ERS)-Induced Apoptosis of Human Diseases. Med Sci Monit 2020; 26:e924558. [PMID: 32952149 PMCID: PMC7504867 DOI: 10.12659/msm.924558] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Tea containing abundant catechins is a popular non-alcoholic beverage worldwide. Epigallocatechin-3-gallate (EGCG) is the predominately active substance in catechins, exhibiting a wide range of functional properties including cancer suppression, neuroprotective, metabolic regulation, cardiovascular protection, stress adjustment, and antioxidant in various diseases. Autophagy, a basic cell function, participates in various physiological processes which include clearing away abnormally folded proteins and damaged organelles, and regulating growth. EGCG not only regulates autophagy via increasing Beclin-1 expression and reactive oxygen species generation, but also causing LC3 transition and decreasing p62 expression. EGCG-induced autophagy is involved in the occurrence and development of many human diseases, including cancer, neurological diseases, diabetes, cardiovascular diseases, and injury. Apoptosis is a common cell function in biology and is induced by endoplasmic reticulum stress (ERS) as a cellular stress response which is caused by various internal and external factors. ERS-induced apoptosis of EGCG influences cell survival and death in various diseases via regulating IRE1, ATF6, and PERK signaling pathways, and activating GRP78 and caspase proteins. The present manuscript reviews that the effect of EGCG in autophagy and ERS-induced apoptosis of human diseases.
Collapse
Affiliation(s)
- Shuangshuang Zhang
- Department of Dermatology, Shanghai Xuhui District Central Hospital, Shanghai, China (mainland)
| | - Mengke Cao
- Department of Dermatology, Jinshan Hospital of Fudan University, Shanghai, China (mainland)
| | - Fang Fang
- Department of Dermatology, Shanghai Eighth People's Hospital, Shanghai, China (mainland)
| |
Collapse
|
38
|
Genes, the brain, and artificial intelligence in evolution. J Hum Genet 2020; 66:103-109. [PMID: 32719359 DOI: 10.1038/s10038-020-0813-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/09/2020] [Accepted: 07/19/2020] [Indexed: 11/08/2022]
Abstract
Three important systems, genes, the brain, and artificial intelligence (especially deep learning) have similar goals, namely, the maximization of likelihood or minimization of cross-entropy. Animal brains have evolved through predator-prey interactions in which maximizing survival probability and transmission of genes to offspring were the main objectives. Coordinate transformation for a rigid body necessary to win predator-prey battles requires a huge amount of matrix operations in the brain similar to those performed by a powerful GPU. Things (molecules), information (genes), and energy (ATP) are essential for using Maxwell's demon model to understand how a living system maintains a low level of entropy. However, while the history of medicine and biology saw molecular biology and genetics disciplines flourish, the study of energy has been limited, despite estimates that >10% all human genes code energy-related proteins. Since there are a large number of molecular and genetic diseases, many energy-related diseases must exist as well. In addition to mitochondrial disease, common diseases such as neurodegenerative diseases, muscle diseases, cardiomyopathy, and diabetes are candidates for diseases related to cellular energy shortage. We are developing ATP enhancer, a drug to treat such diseases. I predict that in the future, the frontier of medicine and biology will involve energy and entropy, and the frontier of science will be about the cognitive processes that scientists' brains use to study mathematics and physics. That will be understood by comparing the abilities that were necessary to survive battles between predators and prey during evolutionary history.
Collapse
|
39
|
Chen B, Wu L, Cao T, Zheng HM, He T. MiR-221/SIRT1/Nrf2 signal axis regulates high glucose induced apoptosis in human retinal microvascular endothelial cells. BMC Ophthalmol 2020; 20:300. [PMID: 32698791 PMCID: PMC7374880 DOI: 10.1186/s12886-020-01559-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 07/07/2020] [Indexed: 12/15/2022] Open
Abstract
Background Diabetic retinopathy (DR) is a serious symptom associated with diabetes and could cause much suffer to patients. MiR-221, SIRT1 and Nrf2 were associated with apoptosis and proliferation and their expression were altered in DR patients. However, their roles and regulatory mechanisms in human retinal microvascular endothelial cells (hRMEC) were not clear. Methods Expression of mRNA was detected by qRT-PCR. Protein expression was detected by Western blot. Interaction between miR-221 and SIRT1 was predicted by bioinformatics analysis and validated by dual-luciferase reporter assay. We analyzed the viability and apoptosis of hRMEC by MTT assay and FACS assay, respectively. Results High glucose (HG) treatment enhanced expression of miR-221 and inhibited expression of SIRT1 and Nrf2. MiR-221 overexpression promoted apoptosis under HG condition. Moreover, miR-221 directly interacted with mRNA of SIRT1 and inhibited SIRT1 expression in hRMEC, through which miR-221 inhibited Nrf2 pathway and induced apoptosis of hRMEC. Conclusion Our data demonstrated that miR-221/SIRT1/Nrf2 signal axis could promote apoptosis in hRMEC under HG conditions. This finding could provide theoretical support for future studies and may contribute to development of new treatment options to retard the process of DR development.
Collapse
Affiliation(s)
- Bin Chen
- Department of Ophthalmology, Renmin Hospital of Wuhan University, No. 238, Jiefang Road, Wuhan, 430060, Hubei Province, P. R. China
| | - Li Wu
- Department of Ophthalmology, Renmin Hospital of Wuhan University, No. 238, Jiefang Road, Wuhan, 430060, Hubei Province, P. R. China
| | - Ting Cao
- Department of Ophthalmology, Renmin Hospital of Wuhan University, No. 238, Jiefang Road, Wuhan, 430060, Hubei Province, P. R. China
| | - Hong-Mei Zheng
- Department of Ophthalmology, Renmin Hospital of Wuhan University, No. 238, Jiefang Road, Wuhan, 430060, Hubei Province, P. R. China
| | - Tao He
- Department of Ophthalmology, Renmin Hospital of Wuhan University, No. 238, Jiefang Road, Wuhan, 430060, Hubei Province, P. R. China.
| |
Collapse
|
40
|
Wang X, Lai S, Ye Y, Hu Y, Pan D, Bai X, Shen J. Conditional knockout of pyruvate dehydrogenase in mouse pancreatic β‑cells causes morphological and functional changes. Mol Med Rep 2020; 21:1717-1726. [PMID: 32319629 PMCID: PMC7057776 DOI: 10.3892/mmr.2020.10993] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 08/12/2019] [Indexed: 12/14/2022] Open
Abstract
Diabetes mellitus is a metabolic disorder predominantly caused by the dysfunction of pancreatic β-cells. This dysfunction is partly caused by the dysregulation of pyruvate dehydrogenase (PDH), which acts as an important mediator of pyruvate oxidation after glycolysis and fuels the tricarboxylic acid cycle. Previous studies have reported decreased PDH expression in rodent models and humans with type 2 diabetes mellitus (T2DM), suggesting that PDH may play an important role in the development of T2DM. However, the mechanism by which PDH affects insulin secretion and β-cell development is poorly understood. Using immunofluorescence staining, the present study found that the expression of pyruvate dehydrogenase E1-α subunit (PDHA1; encoded by the PDHA1 gene) in the islets of type 2 diabetic mice (db/db mice) was lower than in wild-type mice, which indicated the possible association between PDHA1and diabetes. To further understand this mechanism, an inducible, islet-specific PDHA1 knockout mouse (βKO) model was established. The phenotype was authenticated, and the blood glucose levels and islet function between the βKO and control mice were compared. Though no changes were found in food intake, development status, fasting blood glucose or weight between the groups, the level of insulin secretion at 30 min after glucose injection in the βKO group was significantly lower compared with the control group. Furthermore, the performed of the βKO mice on the intraperitoneal glucose tolerance test was visibly impaired when compared with the control mice. Pancreatic tissues were collected for hematoxylin and eosin staining, immunohistochemical and confocal laser-scanning microscopy analysis. Examination of the islets from the βKO mouse model indicated that abolishing the expression of PDH caused a compensatory islet enlargement and impaired insulin secretion.
Collapse
Affiliation(s)
- Xiao Wang
- Shunde Hospital of Southern Medical University, Foshan, Guangdong 528308, P.R. China
| | - Shuchang Lai
- The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan 570100, P.R. China
| | - Yanshi Ye
- Department of Endocrinology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong 510000, P.R. China
| | - Yuanyuan Hu
- Shenzhen Nan Shan Hospital, Shenzhen, Guangdong 518052, P.R. China
| | - Daoyan Pan
- Department of Endocrinology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong 510000, P.R. China
| | - Xiaochun Bai
- Department of Endocrinology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong 510000, P.R. China
| | - Jie Shen
- Department of Endocrinology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong 510000, P.R. China
| |
Collapse
|
41
|
Miao Z, Wang S, Wang Y, Guo L, Zhang J, Liu Y, Yang Q. A Potential Linking between Vitamin D and Adipose Metabolic Disorders. Can J Gastroenterol Hepatol 2020; 2020:2656321. [PMID: 32149047 PMCID: PMC7049848 DOI: 10.1155/2020/2656321] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 11/10/2019] [Accepted: 11/27/2019] [Indexed: 02/06/2023] Open
Abstract
Vitamin D has been discovered centuries ago, and current studies have focused on the biological effects of vitamin D on adipogenesis. Besides its role in calcium homeostasis and energy metabolism, vitamin D is also involved in the regulation of development and process of metabolic disorders. Adipose tissue is a major storage depot of vitamin D. This review summarized studies on the relationship between vitamin D and adipogenesis and furthermore focuses on adipose metabolic disorders. We reviewed the biological roles and functionalities of vitamin D, the correlation between vitamin D and adipose tissue, the effect of vitamin D on adipogenesis, and adipose metabolic diseases. Vitamin D is associated with adipogenesis, and vitamin D supplements can reduce the burden caused by metabolic diseases. The review provides new insights and basis for medical therapy on adipose metabolic diseases.
Collapse
Affiliation(s)
- Zhiguo Miao
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China
| | - Shan Wang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China
| | - Yimin Wang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China
| | - Liping Guo
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China
| | - Jinzhou Zhang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China
| | - Yang Liu
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, Henan 453003, China
| | - Qiyuan Yang
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Medical School, Worcester, MA 01605, USA
| |
Collapse
|
42
|
Las G, Oliveira MF, Shirihai OS. Emerging roles of β-cell mitochondria in type-2-diabetes. Mol Aspects Med 2020; 71:100843. [PMID: 31918997 DOI: 10.1016/j.mam.2019.100843] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 12/23/2019] [Accepted: 12/27/2019] [Indexed: 10/25/2022]
Abstract
Type-2-Diabetes (T2D) is the most common metabolic disease in the world today. It erupts as a result of peripheral insulin resistance combined with hyperinsulinemia followed by suppression of insulin secretion from pancreatic β-cells. Mitochondria play a central role in β-cells by sensing glucose and also by mediating the suppression of insulin secretion in T2D. Here, we will summarize the evidence accumulated for the roles of β-cells mitochondria in T2D. We will present an updated view on how mitochondria in β-cells have been associated with T2D, from the genetic, bioenergetic, redox and structural points of view. The emerging picture is that mitochondrial structure and dysfunction directly contribute to β-cell function and in the pathogenesis of T2D.
Collapse
Affiliation(s)
- Guy Las
- Department of Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben Gurion University of the Negev, Beer-Sheva, Israel
| | - Marcus F Oliveira
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal Do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, RJ, Brazil.
| | - Orian S Shirihai
- Division of Endocrinology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA.
| |
Collapse
|
43
|
Abstract
PURPOSE OF REVIEW This article provides an overview of mitochondrial and metabolic biology, the genetic mechanisms causing mitochondrial diseases, the clinical features of mitochondrial diseases, lipid myopathies, and glycogen storage diseases, all with a focus on those syndromes and diseases associated with myopathy. Over the past decade, advances in genetic testing have revolutionized patient evaluation. The main goal of this review is to give the clinician the basic understanding to recognize patients at risk of these diseases using the standard history and physical examination. RECENT FINDINGS Primary mitochondrial disease is the current designation for the illnesses resulting from genetic mutations in genes whose protein products are necessary for mitochondrial structure or function. In most circumstances, more than one organ system is involved in mitochondrial disease, and the value of the classic clinical features as originally described early in the history of mitochondrial diseases has reemerged as being important to identifying patients who may have a primary mitochondrial disease. The use of the genetic laboratory has become the most powerful tool for confirming a diagnosis, and nuances of using genetic results will be discussed in this article. Treatment for mitochondrial disease is symptomatic, with less emphasis on vitamin and supplement therapy than in the past. Clinical trials using pharmacologic agents are in progress, with the field attempting to define proper goals of treatment. Several standard accepted therapies exist for many of the metabolic myopathies. SUMMARY Mitochondrial, lipid, and glycogen diseases are not uncommon causes of multisystem organ dysfunction, with the neurologic features, especially myopathy, occurring as a predominant feature. Early recognition requires basic knowledge of the varied clinical phenotypes before moving forward with a screening evaluation and possibly a genetic evaluation. Aside from a few specific diseases for which there are recommended interventions, treatment for the majority of these disorders remains symptomatic, with clinical trials currently in progress that will hopefully result in standard treatments.
Collapse
|
44
|
Mitochondrial disorders and the eye. Surv Ophthalmol 2019; 65:294-311. [PMID: 31783046 DOI: 10.1016/j.survophthal.2019.11.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 11/16/2019] [Accepted: 11/18/2019] [Indexed: 01/27/2023]
Abstract
Mitochondria are cellular organelles that play a key role in energy metabolism and oxidative phosphorylation. Malfunctioning of mitochondria has been implicated as the cause of many disorders with variable inheritance, heterogeneity of systems involved, and varied phenotype. Metabolically active tissues are more likely to be affected, causing an anatomic and physiologic disconnect in the treating physicians' mind between presentation and underlying pathophysiology. We shall focus on disorders of mitochondrial metabolism relevant to an ophthalmologist. These disorders can affect all parts of the visual pathway (crystalline lens, extraocular muscles, retina, optic nerve, and retrochiasm). After the introduction reviewing mitochondrial structure and function, each disorder is reviewed in detail, including approaches to its diagnosis and most current management guidelines.
Collapse
|
45
|
NADPH Oxidase 2-Mediated Insult in the Auditory Cortex of Zucker Diabetic Fatty Rats. Neural Plast 2019; 2019:3591605. [PMID: 31467521 PMCID: PMC6701372 DOI: 10.1155/2019/3591605] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 06/20/2019] [Indexed: 12/16/2022] Open
Abstract
Clinical data has confirmed that auditory impairment may be a secondary symptom of type 2 diabetes mellitus (T2DM). However, mechanisms underlying pathologic changes that occur in the auditory system, especially in the central auditory system (CAS), remain poorly understood. In this study, Zucker diabetic fatty (ZDF) rats were used as a T2DM rat model to observe ultrastructural alterations in the auditory cortex and investigate possible mechanisms underlying CAS damage in T2DM. The auditory brainstem response (ABR) of ZDF rats was found to be markedly elevated in low (8 kHz) and high (32 kHz) frequencies. Protein expression of NADPH oxidase 2 (NOX2) and its matching subunits P22phox, P47phox, and P67phox was increased in the auditory cortex of ZDF rats. Expression of 8-hydroxy-2-deoxyguanosine (8-OHdG), a marker of DNA oxidative damage, was also increased in the neuronal mitochondria of the auditory cortex of ZDF rats. Additionally, decreases in the mitochondrial total antioxidant capabilities (T-AOC), adenosine triphosphate (ATP) production, and mitochondrial membrane potential (MMP) were detected in the auditory cortex of ZDF rats, suggesting mitochondrial dysfunction. Transmission electron microscopy results indicated that ultrastructural damage had occurred to neurovascular units and mitochondria in the auditory cortex of ZDF rats. Furthermore, cytochrome c (Cyt c) translocation from mitochondria to cytoplasm and caspase 3-dependent apoptosis were also detected in the auditory cortex of ZDF rats. Consequently, the study demonstrated that T2DM may cause morphological damage to the CAS and that NOX2-associated mitochondrial oxidative damage and apoptosis may be partly responsible for this insult.
Collapse
|
46
|
Mitochondrial dysfunction in diabetic kidney disease. Clin Chim Acta 2019; 496:108-116. [PMID: 31276635 DOI: 10.1016/j.cca.2019.07.005] [Citation(s) in RCA: 131] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 06/27/2019] [Accepted: 07/01/2019] [Indexed: 12/26/2022]
Abstract
Although diabetic kidney disease (DKD) is the most common cause of end-stage kidney disease worldwide, the pathogenic mechanisms are poorly understood. There is increasing evidence that mitochondrial dysfunction contributes to the development and progression of DKD. Because the kidney is the organ with the second highest oxygen consumption in our body, it is distinctly sensitive to mitochondrial dysfunction. Mitochondrial dysfunction contributes to the progression of chronic kidney disease irrespective of underlying cause. More importantly, high plasma glucose directly damages renal tubular cells, resulting in a wide range of metabolic and cellular dysfunction. Overproduction of reactive oxygen species (ROS), activation of apoptotic pathway, and defective mitophagy are interlinked mechanisms that play pivotal roles in the progression of DKD. Although renal tubular cells have the highest mitochondrial content, podocytes, mesangial cells, and glomerular endothelial cells may all be affected by diabetes-induced mitochondrial injury. Urinary mitochondrial DNA (mtDNA) is readily detectable and may serve as a marker of mitochondrial damage in DKD. Unfortunately, pharmacologic modulation of mitochondrial dysfunction for the treatment of DKD is still in its infancy. Nonetheless, understanding the pathobiology of mitochondrial dysfunction in DKD would facilitate the development of novel therapeutic strategies.
Collapse
|
47
|
Candida sp. Infections in Patients with Diabetes Mellitus. J Clin Med 2019; 8:jcm8010076. [PMID: 30634716 PMCID: PMC6352194 DOI: 10.3390/jcm8010076] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 12/27/2018] [Accepted: 01/03/2019] [Indexed: 02/07/2023] Open
Abstract
Candidiasis has increased substantially worldwide over recent decades and is a significant cause of morbidity and mortality, especially among critically ill patients. Diabetes mellitus (DM) is a metabolic disorder that predisposes individuals to fungal infections, including those related to Candida sp., due to a immunosuppressive effect on the patient. This review aims to discuss the latest studies regarding the occurrence of candidiasis on DM patients and the pathophysiology and etiology associated with these co-morbidities. A comprehensive review of the literature was undertaken. PubMed, Scopus, Elsevier’s ScienceDirect, and Springer’s SpringerLink databases were searched using well-defined search terms. Predefined inclusion and exclusion criteria were applied to classify relevant manuscripts. Results of the review show that DM patients have an increased susceptibility to Candida sp. infections which aggravates in the cases of uncontrolled hyperglycemia. The conclusion is that, for these patients, the hospitalization periods have increased and are commonly associated with the prolonged use of indwelling medical devices, which also increase the costs associated with disease management.
Collapse
|
48
|
Sjöholm Å. Ketosis-Prone Type 2 Diabetes: A Case Series. Front Endocrinol (Lausanne) 2019; 10:684. [PMID: 31749761 PMCID: PMC6843078 DOI: 10.3389/fendo.2019.00684] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 09/20/2019] [Indexed: 12/12/2022] Open
Abstract
Ketosis-prone type 2 diabetes ("Flatbush diabetes") carries features of both classical type 1 and type 2 diabetes and is highly prevalent in African populations. The disease, which is highly ketosis-prone, but neither chronically insulinopenic nor autoimmune, is discussed regarding pathogenesis, diagnosis and treatment from a patient case perspective.
Collapse
|
49
|
Liu Q, Tie L. Preventive and Therapeutic Effect of Ganoderma (Lingzhi) on Diabetes. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1182:201-215. [DOI: 10.1007/978-981-32-9421-9_8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
50
|
Tong P, Peng QH, Gu LM, Xie WW, Li WJ. LncRNA-MEG3 alleviates high glucose induced inflammation and apoptosis of retina epithelial cells via regulating miR-34a/SIRT1 axis. Exp Mol Pathol 2018; 107:102-109. [PMID: 30529346 DOI: 10.1016/j.yexmp.2018.12.003] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 11/22/2018] [Accepted: 12/06/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Diabetic retinopathy (DR) is the serious complication of diabetes, which could lead to blindness. Inflammation and apoptosis are hallmark of DR, but mechanism of their regulation is little known. LncRNA-MEG3 is associated with multiple biological processes including proliferation, apoptosis and inflammation response, and is dramatically decreased in DR. However, the role and underlying mechanism of MEG3 in DR is unclear. This study is aimed to reveal the signaling mechanisms of MEG3 in inflammation and apoptosis of DR. METHODS ARPE-19 cells were applied for this research. MEG3 was cloned into pcDNA3.1. miR-34a was overexpressed and inhibited by transfecting with mimics and inhibitor, respectively. The expression level was detected by qRT-PCR and western blotting. The targeted regulatory relationship was analyzed by dual luciferase assay. Cytokine secretion, cell viability and apoptosis were detected by ELISA assay, MTT assay and flow cytometry analysis, respectively. RESULTS High glucose (HG) inhibited MEG3 and SIRT1 expression and enhanced miR-34a expression. MEG3 could promote SIRT1 expression by targeting miR-34a. MEG3 overexpression and miR-34a knockdown could inhibit HG-induced apoptosis and secretion of inflammation cytokines including IL-1β, IL-6 and TNF-α, but miR-34a overexpression alleviated such effects of MEG3. Furthermore, MEG3 overexpression also inhibited NF-κB signaling pathway and increased Bcl-2/Bax ratio via down-regulating miR-34a. CONCLUSION MEG3 could alleviate HG-inducing apoptosis and inflammation via inhibiting NF-κB signaling pathway by targeting miR-34a/SIRT1 axis. This finding illustrated the function and mechanism of MEG3 in DR, and MEG3 might serve as potential therapeutic target for DR.
Collapse
Affiliation(s)
- Ping Tong
- Department of Ophthalmology, The Second Xiangya Hospital of Central South University, Changsha 410011, PR China
| | - Qing-Hua Peng
- Hunan Provincial Key Laboratory of Ophthalmology and Otorhinolaryngology in Chinese Medicine, Hunan University of Chinese Medicine, Changsha 410208, PR China
| | - Li-Min Gu
- Department of Ophthalmology, The Third Affiliated Hospital of Second Military Medical University, Shanghai 200438, PR China
| | - Wei-Wei Xie
- Ningbo Eye Hospital, Ningbo 315040, PR China
| | - Wen-Jie Li
- Department of Ophthalmology, The Third Xiangya Hospital of Central South University, Changsha 410013, PR China.
| |
Collapse
|