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Lee JH, Kim DY, Pantha R, Lee EH, Bae JH, Han E, Song DK, Kwon TK, Im SS. Identification of Pre-Diabetic Biomarkers in the Progression of Diabetes Mellitus. Biomedicines 2021; 10:biomedicines10010072. [PMID: 35052752 PMCID: PMC8773205 DOI: 10.3390/biomedicines10010072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 12/25/2021] [Accepted: 12/29/2021] [Indexed: 01/11/2023] Open
Abstract
Type 2 diabetes mellitus (T2DM) is a major global health issue. The development of T2DM is gradual and preceded by the pre-diabetes mellitus (pre-DM) stage, which often remains undiagnosed. This study aimed to identify novel pre-DM biomarkers in a high-fat diet (HFD)-induced pre-DM mouse model. Male C57BL/6J mice were fed either a chow diet or HFD for 12 weeks. Serum and liver samples were isolated in a time-dependent manner. Semi-quantitative assessment of secretory cytokines was performed by cytokine array analysis, and 13 cytokines were selected for further analysis based on the changes in expression levels in the pre-DM and T2DM stages. HFD-fed mice gained body weight and exhibited high serum lipid, liver enzyme, glucose, and insulin levels during the progression of pre-DM to T2DM. The mRNA expression of inflammatory and lipogenic genes was elevated in HFD-fed mice The mRNA expression of Fc receptor, IgG, low affinity Iib, lectin, galactose binding, soluble 1, vascular cell adhesion molecule 1, insulin-like growth factor binding protein 5, and growth arrest specific 6 was elevated in the pre-DM, which was confirmed by measuring protein levels. Our study identified novel pre-DM biomarkers that may help to delay or prevent the progression of T2DM.
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Affiliation(s)
- Jae-Ho Lee
- Department of Physiology, Keimyung University School of Medicine, Daegu 42601, Korea; (J.-H.L.); (D.-Y.K.); (R.P.); (E.-H.L.); (J.-H.B.); (D.-K.S.)
| | - Do-Young Kim
- Department of Physiology, Keimyung University School of Medicine, Daegu 42601, Korea; (J.-H.L.); (D.-Y.K.); (R.P.); (E.-H.L.); (J.-H.B.); (D.-K.S.)
| | - Rubee Pantha
- Department of Physiology, Keimyung University School of Medicine, Daegu 42601, Korea; (J.-H.L.); (D.-Y.K.); (R.P.); (E.-H.L.); (J.-H.B.); (D.-K.S.)
| | - Eun-Ho Lee
- Department of Physiology, Keimyung University School of Medicine, Daegu 42601, Korea; (J.-H.L.); (D.-Y.K.); (R.P.); (E.-H.L.); (J.-H.B.); (D.-K.S.)
| | - Jae-Hoon Bae
- Department of Physiology, Keimyung University School of Medicine, Daegu 42601, Korea; (J.-H.L.); (D.-Y.K.); (R.P.); (E.-H.L.); (J.-H.B.); (D.-K.S.)
| | - Eugene Han
- Department of Internal Medicine, Division of Endocrinology, Keimyung University School of Medicine, Daegu 42601, Korea;
| | - Dae-Kyu Song
- Department of Physiology, Keimyung University School of Medicine, Daegu 42601, Korea; (J.-H.L.); (D.-Y.K.); (R.P.); (E.-H.L.); (J.-H.B.); (D.-K.S.)
| | - Taeg Kyu Kwon
- Department of Immunology, Keimyung University School of Medicine, Daegu 42601, Korea;
| | - Seung-Soon Im
- Department of Physiology, Keimyung University School of Medicine, Daegu 42601, Korea; (J.-H.L.); (D.-Y.K.); (R.P.); (E.-H.L.); (J.-H.B.); (D.-K.S.)
- Correspondence: ; Tel.: +82-53-258-7423; Fax: +82-53-258-7412
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Bus K, Szterk A. Relationship between Structure and Biological Activity of Various Vitamin K Forms. Foods 2021; 10:foods10123136. [PMID: 34945687 PMCID: PMC8701896 DOI: 10.3390/foods10123136] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/14/2021] [Accepted: 12/16/2021] [Indexed: 01/06/2023] Open
Abstract
Vitamin K is involved many biological processes, such as the regulation of blood coagulation, prevention of vascular calcification, bone metabolism and modulation of cell proliferation. Menaquinones (MK) and phylloquinone vary in biological activity, showing different bioavailability, half-life and transport mechanisms. Vitamin K1 and MK-4 remain present in the plasma for 8–24 h, whereas long-chain menaquinones can be detected up to 96 h after administration. Geometric structure is also an important factor that conditions their properties. Cis-phylloquinone shows nearly no biological activity. An equivalent study for menaquinone is not available. The effective dose to decrease uncarboxylated osteocalcin was six times lower for MK-7 than for MK-4. Similarly, MK-7 affected blood coagulation system at dose three to four times lower than vitamin K1. Both vitamin K1 and MK-7 inhibited the decline in bone mineral density, however benefits for the occurrence of cardiovascular diseases have been observed only for long-chain menaquinones. There are currently no guidelines for the recommended doses and forms of vitamin K in the prevention of osteoporosis, atherosclerosis and other cardiovascular disorders. Due to the presence of isomers with unknown biological properties in some dietary supplements, quality and safety of that products may be questioned.
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Affiliation(s)
- Katarzyna Bus
- Department of Spectrometric Methods, National Medicines Institute, 30/34 Chełmska, 00-725 Warsaw, Poland
- Correspondence:
| | - Arkadiusz Szterk
- Center for Translational Medicine, Warsaw University of Life Sciences, Nowoursynowska 100, 02-797 Warsaw, Poland;
- Transfer of Science Sp. z o.o., Strzygłowska 15, 04-866 Warsaw, Poland
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Varsamis NA, Christou GA, Kiortsis DN. A critical review of the effects of vitamin K on glucose and lipid homeostasis: its potential role in the prevention and management of type 2 diabetes. Hormones (Athens) 2021; 20:415-422. [PMID: 33454929 DOI: 10.1007/s42000-020-00268-w] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 12/22/2020] [Indexed: 12/23/2022]
Abstract
In recent years, our knowledge regarding the physiological role of vitamin K has expanded beyond regulation of coagulation to include many other aspects of human health. In the present review, we aimed to evaluate the existing evidence for beneficial effects of vitamin K on type 2 diabetes and components of the metabolic syndrome as risk factors for cardiovascular disease. Increased dietary intake of vitamin K has been linked to lower incidence of type 2 diabetes mellitus (T2DM), possibly through its enhancement of insulin production and sensitivity. Additionally, higher plasma levels of vitamin K1 have been associated with lower T2DM risk and decreased insulin resistance, and supplementation trials also suggest a positive influence of vitamin K on glucose regulation. Vitamin K might also beneficially affect serum lipids and lipid metabolism. However, the available data remain controversial. Additionally, different studies use different approaches to assess vitamin K status owing to the absence of a generally accepted marker, which further complicates data evaluation. In conclusion, vitamin K possibly improves glucose and lipid metabolism and could be an emerging target in the context of prevention and control of T2DM, insulin resistance, and dyslipidemia.
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Affiliation(s)
- Nikolaos A Varsamis
- Department of Nuclear Medicine, Medical School, University of Ioannina, 45110, Ioannina, Greece
| | - Georgios A Christou
- Department of Nuclear Medicine, Medical School, University of Ioannina, 45110, Ioannina, Greece
| | - Dimitrios N Kiortsis
- Department of Nuclear Medicine, Medical School, University of Ioannina, 45110, Ioannina, Greece.
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Otani T, Mizokami A, Kawakubo-Yasukochi T, Takeuchi H, Inai T, Hirata M. The roles of osteocalcin in lipid metabolism in adipose tissue and liver. Adv Biol Regul 2020; 78:100752. [PMID: 32992234 DOI: 10.1016/j.jbior.2020.100752] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 09/08/2020] [Indexed: 06/11/2023]
Abstract
Bone provides skeletal support and functions as an endocrine organ by producing osteocalcin, whose uncarboxylated form (GluOC) increases the metabolism of glucose and lipid by activating its putative G protein-coupled receptor (family C group 6 subtype A). Low doses (≤10 ng/ml) of GluOC induce the expression of adiponectin, adipose triglyceride lipase and peroxisome proliferator-activated receptor γ, and promote active phosphorylation of lipolytic enzymes such as perilipin and hormone-sensitive lipase via the cAMP-PKA-Src-Rap1-ERK-CREB signaling axis in 3T3-L1 adipocytes. Administration of high-dose (≥20 ng/ml) GluOC induces programmed necrosis (necroptosis) through a juxtacrine mechanism triggered by the binding of Fas ligand, whose expression is induced by forkhead box O1, to Fas that is expressed in adjacent adipocytes. Furthermore, expression of adiponectin and adipose triglyceride lipase in adipocytes is triggered in the same manner as following low-dose GluOC stimulation; these effects protect mice from diet-induced accumulation of triglycerides in hepatocytes and consequent liver injury through the upregulation of nuclear translocation of nuclear factor-E2-related factor-2, expression of antioxidant enzymes, and inhibition of the c-Jun N-terminal kinase pathway. Evaluation of these molecular mechanisms leads us to consider that GluOC might have potential as a treatment for lipid metabolism disorders. Indeed, there have been many reports demonstrating the negative correlation between serum osteocalcin levels and obesity or non-alcoholic fatty liver disease, a common risk factor for which is dyslipidemia in humans. The present review summarizes the effects of GluOC on lipid metabolism as well as its possible therapeutic application for metabolic diseases including obesity and dyslipidemia.
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Affiliation(s)
- Takahito Otani
- Division of Functional Structure, Department of Morphological Biology, Fukuoka Dental College, Fukuoka, 814-0193, Japan
| | - Akiko Mizokami
- OBT Research Center, Faculty of Dental Science, Kyushu University, Fukuoka, 812-8582, Japan
| | | | - Hiroshi Takeuchi
- Division of Applied Pharmacology, Kyushu Dental University, Kitakyushu, 803-8580, Japan
| | - Tetsuichiro Inai
- Division of Functional Structure, Department of Morphological Biology, Fukuoka Dental College, Fukuoka, 814-0193, Japan; Oral Medicine Research Center, Fukuoka Dental College, Fukuoka, 814-0193, Japan
| | - Masato Hirata
- Oral Medicine Research Center, Fukuoka Dental College, Fukuoka, 814-0193, Japan.
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Farhadi Moghadam B, Fereidoni M. Neuroprotective effect of menaquinone-4 (MK-4) on transient global cerebral ischemia/reperfusion injury in rat. PLoS One 2020; 15:e0229769. [PMID: 32150581 PMCID: PMC7062268 DOI: 10.1371/journal.pone.0229769] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 02/14/2020] [Indexed: 02/06/2023] Open
Abstract
Cerebral ischemia/reperfusion (I/R) injury causes cognitive deficits, excitotoxicity, neuroinflammation, oxidative stress and brain edema. Vitamin K2 (Menaquinone 4, MK-4) as a potent antioxidant can be a good candidate to ameliorate I/R consequences. This study focused on the neuroprotective effects of MK-4 for cerebral I/R insult in rat’s hippocampus. The rat model of cerebral I/R was generated by transient bilateral common carotid artery occlusion for 20 min. Rats were divided into control, I/R, I/R+DMSO (solvent (1% v/v)) and I/R+MK-4 treated (400 mg/kg, i.p.) groups. Twenty-four hours after I/R injury induction, total brain water content, superoxide dismutase (SOD) activity, nitrate/nitrite concentration and neuronal density were evaluated. In addition to quantify the apoptosis processes, TUNEL staining, as well as expression level of Bax and Bcl2, were assessed. To evaluate astrogliosis and induced neurotoxicity by I/R GFAP and GLT-1 mRNA expression level were quantified. Furthermore, pro-inflammatory cytokines including IL-1β, IL-6 and TNF-α were measured. Seven days post I/R, behavioral analysis to quantify cognitive function, as well as Nissl staining for surviving neuronal evaluation, were conducted. The findings indicated that administration of MK-4 following I/R injury improved anxiety-like behavior, short term and spatial learning and memory impairment induced by I/R. Also, MK-4 was able to diminish the increased total brain water content, apoptotic cell density, Bax/ Bcl2 ratio and GFAP mRNA expression following I/R. In addition, the high level of nitrate/nitrite, IL-6, IL-1β and TNF-α induced by I/R was reduced after MK-4 administration. However, MK-4 promotes the level of SOD activity and GLT-1 mRNA expression in I/R rat model. The findings demonstrated that MK-4 can rescue transient global cerebral I/R consequences via its anti-inflammatory and anti-oxidative stress features. MK-4 administration ameliorates neuroinflammation, neurotoxicity and neuronal cell death processes and leads to neuroprotection.
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Affiliation(s)
| | - Masoud Fereidoni
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
- * E-mail:
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Dihingia A, Ozah D, Borah T, Kalita J, Manna P. Gamma‐glutamyl–carboxylated Gas6 mediates positive role of vitamin K on lowering hyperglycemia in type 2 diabetes. Ann N Y Acad Sci 2019; 1462:104-117. [DOI: 10.1111/nyas.14238] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 07/10/2019] [Accepted: 08/29/2019] [Indexed: 12/22/2022]
Affiliation(s)
- Anjum Dihingia
- Biotechnology Group, Biological Science and Technology DivisionCSIR‐North East Institute of Science and Technology Jorhat Assam India
- Academy of Scientific and Innovative ResearchCSIR‐NEIST Jorhat Assam India
| | - Dibyajyoti Ozah
- Clinical CentreCSIR‐North East Institute of Science and Technology Jorhat Assam India
| | - Thaneswar Borah
- Clinical CentreCSIR‐North East Institute of Science and Technology Jorhat Assam India
| | - Jatin Kalita
- Biotechnology Group, Biological Science and Technology DivisionCSIR‐North East Institute of Science and Technology Jorhat Assam India
- Academy of Scientific and Innovative ResearchCSIR‐NEIST Jorhat Assam India
| | - Prasenjit Manna
- Biotechnology Group, Biological Science and Technology DivisionCSIR‐North East Institute of Science and Technology Jorhat Assam India
- Academy of Scientific and Innovative ResearchCSIR‐NEIST Jorhat Assam India
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Abstract
PURPOSE OF REVIEW Type 2 diabetes is one of the most important public health diseases. Type 2 diabetes pathophysiology involves multiple pathways, in which micronutrients could play a role. Among them, interest has grown concerning vitamin K. The purpose of this review is to expose the latest studies on the role of vitamin K in glucose metabolism, a poorly known function of this vitamin. RECENT FINDINGS Animal experimentations and human observational and interventional studies were analyzed to evaluate the role of this vitamin in glucose metabolism. Daily intake of vitamin K seems to improve glucose metabolism and low intakes could be involved in type 2 diabetes pathophysiology. Recent data show that vitamin K could act on glucose metabolism via downstream targets such as osteocalcin, growth arrest-specific 6 protein, and matrix Gla protein. SUMMARY This review depicts new insights into the role of vitamin K in glucose metabolism regulation and depicts also the probable mechanisms underlying this association. Further studies will be needed to determine the dose and the duration of vitamin K treatment to achieve the strongest metabolic effect. Maybe the best strategy to improve glucose metabolism would be 'cocktails' of micronutrients associating vitamin K.
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Affiliation(s)
- Olivier Bourron
- Sorbonne Université, Diabetes Department, Pitié-Salpêtrière Hospital, Assistance Publique-Hôpitaux de Paris
- INSERM UMRS 1138, Centre de Recherche des Cordeliers, Sorbonne Université
- Institute of Cardiometabolism and Nutrition, ICAN, Paris, France
| | - Franck Phan
- Sorbonne Université, Diabetes Department, Pitié-Salpêtrière Hospital, Assistance Publique-Hôpitaux de Paris
- INSERM UMRS 1138, Centre de Recherche des Cordeliers, Sorbonne Université
- Institute of Cardiometabolism and Nutrition, ICAN, Paris, France
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Li YH, Lu CH, Lin FH, Su SC, Liu JS, Hsieh CH, Hung YJ, Shieh YS, Lee CH. Plasma Growth Arrest-Specific 6 Protein and Genetic Variations in the GAS6 Gene in Patients with Metabolic Syndrome. Metab Syndr Relat Disord 2018; 17:22-28. [PMID: 30346880 DOI: 10.1089/met.2017.0143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Growth arrest-specific 6 (Gas6) is a vitamin K-dependent protein secreted by immune cells, endothelial cells, vascular smooth muscle cells, and adipocytes. Recent studies indicate that Gas6 and receptors of the TAM (Tyro3, Axl, and Mer) family may be involved in the pathogenesis of obesity, systemic inflammation, and insulin resistance. The aim of this study was to investigate the association between plasma Gas6 protein and the c.843 + 7G>A Gas6 polymorphism in metabolic syndrome (MetS). METHODS Two hundred five adults (88 men and 117 women) were recruited in this study. Plasma Gas6 concentration, general, and biochemical data were measured. All subjects were genotyped for the c.843 + 7G>A Gas6 polymorphism. RESULTS Plasma Gas6 concentrations decreased in parallel with various MetS components in all groups (P = 0.017 for trend). Patients in the second and third tertiles of Gas6 level had higher high-density lipoprotein cholesterol (HDL-C) levels than those in the first tertile overall and in the female group. Plasma Gas6 levels were significantly positively correlated with HDL-C level and negatively with fasting glucose level in the female patients. The A allele and genotype AA in single nucleotide polymorphism c.843 + 7G>A were less frequent in the subjects with MetS compared to those without MetS. CONCLUSIONS Our results demonstrated a positive correlation between Gas6 protein values and HDL-C and reinforce the association with fasting glucose. In addition, the presence of c.843 + 7G>A Gas6 polymorphisms, especially the AA genotype, had an association with MetS. The potential role of the Gas6/TAM system in MetS deserves further investigation.
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Affiliation(s)
- Yu-Huei Li
- 1 Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Chieh-Hua Lu
- 1 Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Fu-Huang Lin
- 2 School of Public Health, National Defense Medical Center, Taipei, Taiwan
| | - Sheng-Chiang Su
- 1 Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Jhih-Syuan Liu
- 1 Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Chang-Hsun Hsieh
- 1 Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Yi-Jen Hung
- 1 Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.,3 Division of Biochemistry, National Defense Medical Center, Taipei, Taiwan
| | - Yi-Shing Shieh
- 3 Division of Biochemistry, National Defense Medical Center, Taipei, Taiwan.,4 School of Dentistry, National Defense Medical Center, Taipei, Taiwan.,5 Department of Oral Diagnosis and Pathology, Tri-Service General Hospital, Taipei, Taiwan
| | - Chien-Hsing Lee
- 1 Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.,3 Division of Biochemistry, National Defense Medical Center, Taipei, Taiwan
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Dihingia A, Ozah D, Baruah PK, Kalita J, Manna P. Prophylactic role of vitamin K supplementation on vascular inflammation in type 2 diabetes by regulating the NF-κB/Nrf2 pathway via activating Gla proteins. Food Funct 2018; 9:450-462. [PMID: 29227493 DOI: 10.1039/c7fo01491k] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
There is no previous study that has examined the relationship between circulating vitamin K1 (VK1) and vascular inflammation in type 2 diabetes (T2D). This study aims to examine the hypothesis that circulating VK1 deficiency may be associated with higher inflammation and insulin resistance in T2D patients and that VK1 supplementation regulates the NF-κB/Nrf2 pathway via activating VK-dependent Gla proteins and reduces vascular inflammation. The results showed that plasma VK1 levels were significantly lower and MCP-1, fasting glucose, HbA1c, and insulin resistance (HOMA-IR) were significantly higher in T2D patients compared to those in the controls. The lower levels of VK1 in T2D patients were significantly and inversely correlated with MCP-1 and HOMA-IR, which suggests that VK1 supplementation may reduce the vascular inflammation and insulin resistance in T2D. Using a high fat diet-fed T2D mice model this study further demonstrated that VK1 supplementation (1, 3, 5 μg per kg BW, 8 weeks) dose-dependently decreased the body weight gain, glucose intolerance, fasting glucose, glycated hemoglobin, HOMA-IR, and cytokine secretion (MCP-1 and IL-6) in T2D mice. Further cell culture studies showed that VK1 supplementation (1, 5, or 10 nM) decreased NF-κB phosphorylation and MCP-1 secretion and increased Nrf2 protein expression in high glucose (HG, 25 mM)-treated monocytes. Signal silencing studies with GGCX siRNA again depicted the role of VK-dependent Gla proteins in mediating the effect of VK1 on vascular inflammation in HG-treated cells. In conclusion, this study suggests that circulating VK1 has a positive effect in lowering vascular inflammation in T2D by regulating NF-κB/Nrf2 transcription factors via activating VK-dependent Gla proteins.
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Affiliation(s)
- Anjum Dihingia
- Biological Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, Assam, India.
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Wang Y, Wang J, Deng Z, Jin J, Jiang H, Meng J, Xu H, Zhao J, Sun G, Qian H. Chronic Osteomyelitis Increases the Incidence of Type 2 Diabetes in Humans and Mice. Int J Biol Sci 2017; 13:1192-1202. [PMID: 29104510 PMCID: PMC5666334 DOI: 10.7150/ijbs.21379] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 07/31/2017] [Indexed: 01/06/2023] Open
Abstract
Background: To compare the risk of type 2 diabetes (T2DM) between patients with and without chronic osteomyelitis (COM), both in humans and in mice, and to explore risk factors in COM patients who developed T2DM. Methods: One hundred seven patients with COM and 114 patients without COM were consecutively enrolled and retrospectively analysed. Clinical data concerning the time to develop diabetes, glucose metabolism, lipid metabolism, inflammatory factors, mental health and frequency of specialist visits were collected. A mouse model of osteomyelitis was used to verify the presence of impaired glucose metabolism and depression. All data were processed by SPSS. Results: The incidence of T2DM was 2.37-fold higher in patients with COM than in those without. In COM patients, subjects with T2DM (DDM) had higher BMI, less exercise and more frequent visits to specialists than those without (Con). Glucose and lipid metabolism were worse in patients with DDM. Patients with DDM had higher levels of white blood cells (12.9±2.1×109/L vs. 11.7±2.2×109/L, p=0.027), CRP (28.4±4.5 mg/L vs. 22.0±4.8 mg/L, p<0.001), TNF-α (13.5±5.0 pg/mL vs. 9.4±2.6 pg/mL, p= 0.003) and IL-6 (12.9±3.2 pg/mL vs. 9.2±2.7 pg/mL, p<0.001). Significantly increased fasting blood glucose concentrations and impairment of oral glucose tolerance tests were also observed in mice modelling osteomyelitis, which were accompanied by elevated TNF-α and IL-6 levels. Furthermore, the proportion of depression (63.2% vs. 35.2%, p=0.003) and severe anxiety (31.6% vs. 9.1%, p=0.002) were significantly higher in the DDM group. Osteomyelitis mice showed obvious depressive-like behaviours. The levels of TNF-α, IL-6, CRP, BMI, and LDL; lack of exercise; SAS; HAQ; and SF36 assessment were risk factors for the development of T2DM in COM patients. Conclusions: Chronic osteomyelitis increased the incidence of T2DM in both humans and mice. Inflammation, mental illness and lack of exercise were risk factors for the occurrence of T2DM in osteomyelitis. Comprehensive consideration of patient history, including metabolism and mental health, is needed in planning future treatment.
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Affiliation(s)
- Yicun Wang
- Department of Orthopedics, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu, China
| | - Jun Wang
- Department of Orthopedics, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu, China
| | - Zhantao Deng
- Department of Orthopedics, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu, China.,Center for Translational Medicine, Nanjing University Medical School, Nanjing, Jiangsu, PR China.,Jiangsu Key Laboratory for Molecular Medicine, Nanjing University Medical School, Nanjing, PR China
| | - Jiewen Jin
- Center for Translational Medicine, Nanjing University Medical School, Nanjing, Jiangsu, PR China.,Jiangsu Key Laboratory for Molecular Medicine, Nanjing University Medical School, Nanjing, PR China
| | - Hui Jiang
- Department of Orthopedics, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu, China
| | - Jia Meng
- Department of Orthopedics, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu, China
| | - Haidong Xu
- Department of Orthopedics, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu, China
| | - Jianning Zhao
- Department of Orthopedics, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu, China
| | - Guojing Sun
- Department of Orthopedics, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu, China
| | - Hongbo Qian
- Department of Orthopedics, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu, China
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