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Chowdhury A, Mitra Mazumder P. Unlocking the potential of flavonoid-infused drug delivery systems for diabetic wound healing with a mechanistic exploration. Inflammopharmacology 2024:10.1007/s10787-024-01561-5. [PMID: 39217278 DOI: 10.1007/s10787-024-01561-5] [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: 08/05/2024] [Accepted: 08/14/2024] [Indexed: 09/04/2024]
Abstract
Diabetes is one of the common endocrine disorders generally characterized by elevated levels of blood sugar. It can originate either from the inability of the pancreas to synthesize insulin, which is considered as an autoimmune disorder, or the reduced production of insulin, considered as insulin resistivity. A wound can be defined as a condition of damage to living tissues including skin, mucous membrane and other organs as well. Wounds get complicated with respect to time based on specific processes like diabetes mellitus, obesity and immunocompromised conditions. Proper growth and functionality of the epidermis gets sustained due to impaired diabetic wound healing which shows a sign of dysregulated wound healing process. In comparison with synthetic medications, phytochemicals like flavonoids, tannins, alkaloids and glycosides have gained enormous importance relying on their distinct potential to heal diabetic wounds. Flavonoids are one of the most promising and important groups of natural compounds which can be used to treat acute as well as chronic wounds. Flavonoids show excellent properties due to the presence of hydroxyl groups in their chemical structure, which makes this class of compounds different from others. Based on the novel principles of nanotechnology via utilizing suitable drug delivery systems, the delivery of bioactive constituents from plant source amplifies the wound-healing mechanism, minimizes complexities and enhances bioavailability. Hence, the encapsulation and applicability of flavonoids with an emphasis on mechanistic route and wound-healing therapeutics have been highlighted in the subsequent study with focus on multiple drug delivery systems.
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Affiliation(s)
- Ankit Chowdhury
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, 835215, India
| | - Papiya Mitra Mazumder
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, 835215, India.
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Kamal R, Awasthi A, Pundir M, Thakur S. Healing the diabetic wound: Unlocking the secrets of genes and pathways. Eur J Pharmacol 2024; 975:176645. [PMID: 38759707 DOI: 10.1016/j.ejphar.2024.176645] [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: 03/04/2024] [Revised: 05/03/2024] [Accepted: 05/13/2024] [Indexed: 05/19/2024]
Abstract
Diabetic wounds (DWs) are open sores that can occur anywhere on a diabetic patient's body. They are often complicated by infections, hypoxia, oxidative stress, hyperglycemia, and reduced growth factors and nucleic acids. The healing process involves four phases: homeostasis, inflammation, proliferation, and remodeling, regulated by various cellular and molecular events. Numerous genes and signaling pathways such as VEGF, TGF-β, NF-κB, PPAR-γ, MMPs, IGF, FGF, PDGF, EGF, NOX, TLR, JAK-STAT, PI3K-Akt, MAPK, ERK, JNK, p38, Wnt/β-catenin, Hedgehog, Notch, Hippo, FAK, Integrin, and Src pathways are involved in these events. These pathways and genes are often dysregulated in DWs leading to impaired healing. The present review sheds light on the pathogenesis, healing process, signaling pathways, and genes involved in DW. Further, various therapeutic strategies that target these pathways and genes via nanotechnology are also discussed. Additionally, clinical trials on DW related to gene therapy are also covered in the present review.
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Affiliation(s)
- Raj Kamal
- Department of Quality Assurance, ISF College of Pharmacy, Moga, Punjab, 142001, India
| | - Ankit Awasthi
- Department of Pharmaceutics, ISF College of Pharmacy, Moga, Punjab, 142001, India.
| | - Mandeep Pundir
- School of Pharmaceutical Sciences, RIMT University, Punjab, 142001, India; Chitkara College of Pharmacy, Chitkara University, Punjab, 142001, India
| | - Shubham Thakur
- Department of Pharmaceutics, ISF College of Pharmacy, Moga, Punjab, 142001, India
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Tang R, Wan L, Yi Z, Luo Y, Wei X, Wang S, Xiao C. The effect of the use of postoperative antibiotic prophylaxis compared with non-use for stented distal hypospadias repair wound: A meta-analysis. Int Wound J 2023; 20:3073-3080. [PMID: 37095731 PMCID: PMC10502256 DOI: 10.1111/iwj.14182] [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: 03/16/2023] [Revised: 03/21/2023] [Accepted: 03/27/2023] [Indexed: 04/26/2023] Open
Abstract
A meta-analysis investigation to measure the influence of the usage of postoperative antibiotic prophylaxis (POP) compared with non-usage for stented distal hypospadias repair (SDHR). A comprehensive literature inspection till February 2023 was applied and 1067 interrelated investigations were reviewed. The 10 chosen investigations enclosed 1398 individuals with SDHR in the chosen investigations starting point, 812 of them were using POP, and 586 were not using POP. Odds ratio (OR) in addition to 95% confidence intervals (CIs) were used to compute the value of the effect of the usage of POP compared with non-usage for SDHR by the dichotomous and continuous approaches and a fixed or random model. No significant difference was found between individuals using POP and not using POP in posthypospadias repair problem (PRP) (OR, 0.99; 95% CI, 0.42-2.34, P = .97) with moderate heterogeneity (I2 = 69%), posthypospadias repair infection problem (PRIP) (OR, 0.56; 95% CI, 0.30-1.06, P = .08) with no heterogeneity (I2 = 15%), and overall composite posthypospadias repair wound healing associated problem (OCPRWHAP) (OR, 1.27; 95% CI, 0.61-2.63, P = .53) with moderate heterogeneity (I2 = 59%) for SDHR. No significant difference was found between individuals using POP and not using POP in PRP, PRIP, and OCPRWHAP for SDHR. However, cautilised of the small sample sizes of several chosen investigations for this meta-analysis, care must be exercised when dealing with its values, for example, the low P-value of the PRIP.
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Affiliation(s)
- Ruipeng Tang
- Department of UrologyGeneral Hospital of Pangang GroupPanzhihuaChina
| | - Li Wan
- Department of UrologyGeneral Hospital of Pangang GroupPanzhihuaChina
| | - Zhengjin Yi
- Department of UrologyGeneral Hospital of Pangang GroupPanzhihuaChina
| | - Yun Luo
- Department of UrologyGeneral Hospital of Pangang GroupPanzhihuaChina
| | - Xupan Wei
- Department of UrologyGeneral Hospital of Pangang GroupPanzhihuaChina
| | - Shubin Wang
- Department of UrologyGeneral Hospital of Pangang GroupPanzhihuaChina
| | - Chuan Xiao
- Department of UrologyGeneral Hospital of Pangang GroupPanzhihuaChina
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Mao H, Wang Z, Li Q. The effect of the cortical bone trajectory screw fixation and traditional pedicle screw fixation on surgical site wound infection in posterior lumbar fusion wound: A meta-analysis. Int Wound J 2023; 20:3241-3248. [PMID: 37264722 PMCID: PMC10502259 DOI: 10.1111/iwj.14203] [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: 03/27/2023] [Revised: 04/07/2023] [Accepted: 04/12/2023] [Indexed: 06/03/2023] Open
Abstract
A meta-analysis investigation was performed to measure the influence of cortical bone trajectory screw fixation (CBTSF) and traditional pedicle screw fixation (TPSF) on surgical site wound infection (SSWI) in posterior lumbar fusion (PLF). A comprehensive literature inspection till February 2023 was applied and 1657 interrelated investigations were reviewed. The 13 chosen investigations enclosed 1195 individuals with PLF in the chosen investigations' starting point, 578 of them were using CBTSF, and 617 were using TPSF. Odds ratio (OR) in addition to 95% confidence intervals (CIs) were utilised to compute the value of the effect of the CBTSF and TPSF on SSWI in PLF by the dichotomous approaches and a fixed or random model. No significant difference was found between individuals using CBTSF and TPSF in SSWI (OR, 0.68; 95% CI, 0.35-1.33, P = .26), superficial SSWI (OR, 0.62; 95% CI, 0.22-1.79, P = .38), and deep SSWI (OR, 0.30; 95% CI, 0.06-1.50, P = .14) in PLF. No significant difference was found between individuals using CBTSF and TPSF in SSWI, superficial SSWI, and deep SSWI in PLF. However, care must be exercised when dealing with its values because of the small sample sizes of several chosen investigations for this meta-analysis and the low number of selected investigations for a certain type of SSWI.
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Affiliation(s)
- Hanze Mao
- College of Acupuncture and OrthopedicsHubei University of Chinese MedicineWuhanChina
| | - Zhigang Wang
- Department of OrthopedicsAffiliated Hospital of Hubei University of Chinese Medicine, Hubei Provincial Hospital of Traditional Chinese MedicineWuhanChina
| | - Qiang Li
- Department of Orthopedics and TraumatologyShaanxi Traditional Chinese Medicine HospitalXi'anChina
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Dong B, Chen J, Song M, You C, Lei C, Fan Y. The hepatic and pancreatic tumour resection risk factors for surgical site wound infections: A meta-analysis. Int Wound J 2023; 20:3140-3147. [PMID: 37194335 PMCID: PMC10502255 DOI: 10.1111/iwj.14190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 03/27/2023] [Accepted: 03/30/2023] [Indexed: 05/18/2023] Open
Abstract
A meta-analysis was conducted to measure hepatic and pancreatic tumour resection (HPTR) risk factors (RFs) for surgical site wound infections (SSWIs). A comprehensive literature inspection was conducted until February 2023, and 2349 interrelated investigations were reviewed. The nine chosen investigations included 22 774 individuals who were in the chosen investigations' starting point, 20 831 of them were with pancreatic tumours (PTs), and 1934 with hepatic tumours (HTs). Odds ratio (OR) and 95% confidence intervals (CIs) were used to compute the value of the HPTR RFs for SSWIs using dichotomous and continuous approaches, and a fixed or random model. HT patients with biliary reconstruction had significantly higher SSWI (OR, 5.81; 95% CI, 3.42-9.88, P < .001) than those without biliary reconstruction. Nevertheless, there was no significant difference between individuals with PT who underwent pancreaticoduodenectomy and those who underwent distal pancreatectomy in SSWI (OR, 1.63; 95% CI, 0.95-2.77, P = .07). HT individuals with biliary reconstruction had significantly higher SSWI compared with those without biliary reconstruction. Nevertheless, there was no significant difference between PT individuals who underwent pancreaticoduodenectomy and those who underwent distal pancreatectomy in SSWI. However, owing to the small number of selected investigations for this meta-analysis, care must be exercised when dealing with its values.
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Affiliation(s)
- Biao Dong
- Department of Neurosurgerythe Fifth Hospital of WuhanWuhanHubeiChina
| | - Jing Chen
- Department of General MedicineErqiao Street Community Health Service Center affiliated of the Fifth Hospital of WuhanWuhanHubeiChina
| | - Mina Song
- Department of Anesthesiologythe Fifth Hospital of WuhanWuhanHubeiChina
| | - Changjiang You
- Department of Emergencythe Fifth Hospital of WuhanHubeiChina
- Department of General MedicineQin Duankou Street Community Health Service Center of the Fifth Hospital of WuhanWuhanHubeiChina
| | - Changjiang Lei
- Department of Oncologythe Fifth Hospital of WuhanWuhanHubeiChina
| | - Ying Fan
- Department of Outpatient Officethe Fifth Hospital of WuhanWuhanHubeiChina
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Li X, Kou S, Chen G, Zhao B, Xue J, Ding R, Zhao X, Ye M, Yang Y, Yue R, Li F. The relationship between vitamin D deficiency and diabetic foot ulcer: A meta-analysis. Int Wound J 2023; 20:3015-3022. [PMID: 37194326 PMCID: PMC10502267 DOI: 10.1111/iwj.14177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 03/21/2023] [Accepted: 03/22/2023] [Indexed: 05/18/2023] Open
Abstract
A meta-analysis investigation to measure the relationship between vitamin D deficiency (VDD) and diabetic foot ulcer (DFU). A comprehensive literature inspection till February 2023 was applied and 1765 interrelated investigations were reviewed. The 15 chosen investigations enclosed 2648 individuals with diabetes mellitus in the chosen investigations' starting point, 1413 of them were with DFUs, and 1235 were without DFUs. Odds ratio (OR) in addition to 95% confidence intervals (CIs) were used to compute the value of the relationship between VDD and DFU by the dichotomous and continuous approaches and a fixed or random model. Individuals with DFUs had significantly lower vitamin D levels (VDL) (MD, -7.14; 95% CI, -8.83 to -5.44, P < 0.001) compared to those without DFU individuals. Individuals with DFUs had a significantly higher number of VDD individuals (OR, 2.27; 95% CI, 1.63-3.16, P < 0.001) compared to those without DFU individuals. Individuals with DFU had significantly lower VDL and a significantly higher number of VDD individuals compared to those without DFU individuals. However, caused of the small sample sizes of several chosen investigations for this meta-analysis, care must be exercised when dealing with its values.
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Affiliation(s)
- Xin Li
- Department of EndocrinologyHospital of Chengdu University of Traditional Chinese MedicineChengduChina
| | - Shaojie Kou
- Department of Liver DiseaseShaanxi Provincial Hospital of Traditional Chinese MedicineXi'anChina
| | - Guo Chen
- Department of Infectious DiseasesHospital of Chengdu University of Traditional Chinese MedicineChengduChina
| | - Bingjie Zhao
- Department of HaematologyHospital of Chengdu University of Traditional Chinese MedicineChengduChina
| | - Jingdong Xue
- Department of Liver DiseaseShaanxi Provincial Hospital of Traditional Chinese MedicineXi'anChina
| | - Rui Ding
- Department of EndocrinologyHospital of Chengdu University of Traditional Chinese MedicineChengduChina
| | - Xiaoyan Zhao
- Department of EndocrinologyHospital of Chengdu University of Traditional Chinese MedicineChengduChina
| | - Miaoqing Ye
- Department of Liver DiseaseShaanxi Provincial Hospital of Traditional Chinese MedicineXi'anChina
| | - Yueqing Yang
- Department of Liver DiseaseShaanxi Provincial Hospital of Traditional Chinese MedicineXi'anChina
| | - Rensong Yue
- Department of EndocrinologyHospital of Chengdu University of Traditional Chinese MedicineChengduChina
| | - Fenping Li
- Department of Liver DiseaseShaanxi Provincial Hospital of Traditional Chinese MedicineXi'anChina
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Mirghani HO. Vitamin D deficiency among outpatients and hospitalized patients with diabetic foot ulcers: A systematic review and meta-analysis. World J Meta-Anal 2023; 11:218-227. [DOI: 10.13105/wjma.v11.i5.218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 03/06/2023] [Accepted: 05/06/2023] [Indexed: 06/16/2023] Open
Abstract
BACKGROUND The definition of diabetic foot syndrome (DFS) varies depending on the location and resources. Few classifications are available according to the indication. DF ulcers and vitamin D deficiency are common diseases among patients with diabetes. Previous literature has shown an association between DF ulcer (DFU) and vitamin D deficiency. However, the available meta-0analysis was limited by substantial bias.
AIM To investigate the association between DFUs and vitamin D levels.
METHODS We searched PubMed, MEDLINE, and Cochrane Library, EBSCO, and Google Scholar for studies comparing vitamin D levels and DF. The keywords DFU, DFS, diabetic septic foot, vitamin D level, 25-hydroxy vitamin D, vitamin D status, and vitamin D deficiency were used. The search engine was set for articles published during the period from inception to October 2022. A predetermined table was used to collect the study information.
RESULTS Vitamin D level was lower among patients with DFU compared to their counterparts [odds ratio (OR): -5.77; 95% confidence interval (CI): -7.87 to -3.66; χ2 was 84.62, mean difference, 9; I2 for heterogeneity, 89%; P < 0.001 and P for overall effect < 0.001]. The results remained robust for hospitalized patients (OR: -6.32 95%CI: -11.66 to -0.97; χ2 was 19.39; mean difference, 2; I2 for heterogeneity, 90%; P = 0.02).
CONCLUSION Vitamin D was lower among outpatients and hospitalized patients with DFUs. Further larger randomized controlled trials are needed.
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Affiliation(s)
- Hyder Osman Mirghani
- Department of Internal Medicine, Faculty of Medicine, University of Tabuk, Saudi Arabia, Tabuk 3378, Saudi Arabia
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Md Isa Z, Amsah N, Ahmad N. The Impact of Vitamin D Deficiency and Insufficiency on the Outcome of Type 2 Diabetes Mellitus Patients: A Systematic Review. Nutrients 2023; 15:2310. [PMID: 37242192 PMCID: PMC10223393 DOI: 10.3390/nu15102310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/10/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023] Open
Abstract
Vitamin D deficiency and insufficiency are public health concerns that have contributed to multiple negative health outcomes. Recent studies have revealed that vitamin D deficiency and insufficiency influence glycaemic control and the development of diabetes complications. The goal of this systematic review is to summarise the latest evidence on the impact of vitamin D deficiency and insufficiency on the outcome of Type 2 Diabetes Mellitus (T2DM) patients. In this PRISMA-guided systematic review, articles were sourced from three databases, namely, PubMed, Scopus, and Web of Science. The review only included literature published from 2012 until 2022, and 33 eligible studies met the inclusion criteria for this review. The included articles were critically appraised using the Mixed Method Appraisal Tool (MMAT). According to our findings, vitamin D deficiency or insufficiency is associated with mental health status, macrovascular and microvascular complications of T2DM, metabolic syndrome, increased risk of obesity, increased blood pressure, dyslipidaemia, glycaemic control, nerve-related disease, musculoskeletal-related complications, and reduced quality of life. Due to the diverse implications of vitamin D deficiency and insufficiency, screening for vitamin D levels in T2DM patients may be beneficial.
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Affiliation(s)
| | | | - Norfazilah Ahmad
- Department of Public Health Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, Kuala Lumpur 56000, Malaysia; (Z.M.I.); (N.A.)
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Rebelos E, Tentolouris N, Jude E. The Role of Vitamin D in Health and Disease: A Narrative Review on the Mechanisms Linking Vitamin D with Disease and the Effects of Supplementation. Drugs 2023; 83:665-685. [PMID: 37148471 PMCID: PMC10163584 DOI: 10.1007/s40265-023-01875-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/11/2023] [Indexed: 05/08/2023]
Abstract
Vitamin D insufficiency or deficiency (VDD) is a very prevalent condition in the general population. Vitamin D is necessary for optimal bone mineralization, but apart from the bone effects, preclinical and observational studies have suggested that vitamin D may have pleiotropic actions, whereas VDD has been linked to several diseases and higher all-cause mortality. Thus, supplementing vitamin D has been considered a safe and inexpensive approach to generate better health outcomes-and especially so in frail populations. Whereas it is generally accepted that prescribing of vitamin D in VDD subjects has demonstrable health benefits, most randomized clinical trials, although with design constraints, assessing the effects of vitamin D supplementation on a variety of diseases have failed to demonstrate any positive effects of vitamin D supplementation. In this narrative review, we first describe mechanisms through which vitamin D may exert an important role in the pathophysiology of the discussed disorder, and then provide studies that have addressed the impact of VDD and of vitamin D supplementation on each disorder, focusing especially on randomized clinical trials and meta-analyses. Despite there already being vast literature on the pleiotropic actions of vitamin D, future research approaches that consider and circumvent the inherent difficulties in studying the effects of vitamin D supplementation on health outcomes are needed to assess the potential beneficial effects of vitamin D. The evaluation of the whole vitamin D endocrine system, rather than only of 25-hydroxyvitamin D levels before and after treatment, use of adequate and physiologic vitamin D dosing, grouping based on the achieved vitamin D levels rather than the amount of vitamin D supplementation subjects may receive, and sufficiently long follow-up are some of the aspects that need to be carefully considered in future studies.
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Affiliation(s)
- Eleni Rebelos
- Turku PET Centre, University of Turku, Turku, Finland
- Institute of Clinical Physiology, National Research Council (CNR), Pisa, Italy
| | - Nikolaos Tentolouris
- 1st Department of Propaedeutic and Internal Medicine, Medical School, National and Kapodistrian University of Athens, Laiko General Hospital, Athens, Greece
| | - Edward Jude
- Department of Medicine, Tameside and Glossop Integrated Care NHS Foundation Trust, Ashton-under-Lyne , England.
- University of Manchester, Manchester, UK.
- Manchester Metropolitan University, Manchester, UK.
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Tang Y, Huang Y, Luo L, Xu M, Deng D, Fang Z, Zhao X, Chen M. Level of 25-hydroxyvitamin D and vitamin D receptor in diabetic foot ulcer and factor associated with diabetic foot ulcers. Diabetol Metab Syndr 2023; 15:30. [PMID: 36829206 PMCID: PMC9951493 DOI: 10.1186/s13098-023-01002-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 02/17/2023] [Indexed: 02/26/2023] Open
Abstract
BACKGROUND At present, there is no clinical study to elucidate the correlation between vitamin D deficiency and the incidence of diabetic foot osteomyelitis (DFO).This study aims to clarify levels of 25-hydroxyvitamin D [25(OH)VD] in peripheral blood and vitamin D receptor (VDR) expression in wound margin tissues (T-VDR) of patients with type 2 diabetes mellitus (T2DM) with diabetic foot ulcer (DFU) and DFO, and to determine its correlation with treatment outcomes of DFU and DFO, and and its value as a potential biomarker for the diagnosis of DFU and DFO. METHODS 156 T2DM patients with DFU (DFU group), 100 T2DM patients without DFU (T2DM group), and 100 healthy controls (NC group). The DFU group patients were subdivided into DFO (n = 80) and NDFO groups (n = 76). The level of serum 25(OH)VD was measured via chemiluminescence immunoassay, and T-VDR expression level was determined by quantitative real-time PCR. RESULTS The levels of serum 25(OH)VD in the DFU group were significantly lower than the T2DM group [(10.3 (5.8, 18.7) vs 15.7 (8.6, 24.6) ng/mL, P = 0.002)]. Similarly, the levels of serum 25(OH)VD and T-VDR expression in the DFO group were statistically lower than the NDFO group [9.2 (5.2, 20.5) vs 12.8 (6.9, 22.1) ng/mL, P = 0.006)], [1.96 (0.61, 3.97) vs 3.11 (1.36, 5.11), P = 0.004)], respectively. Furthermore, the levels of serum 25(OH)VD and T-VDR expression in DFU patients were positively correlated with the ulcer healing rate of foot ulcer after 8 weeks of treatment ( P = 0.031, P = 0.016, respectively). Multivariate logistic regression analysis showed that low level of serum 25(OH)VD was an independent risk factor for DFU and DFO (ORDFU = 2.42, ORDFO = 3.05, P = 0.008, 0.001, respectively), and decreased T-VDR expression level was an independent risk factor for DFO (OR = 2.83, P = 0.004). Meanwhile, the ROC curve analysis indicated that the AUC of serum 25(OH)VD level for the diagnosis of DFU and DFO was 0.821 (95% CI, 0.754-0.886, P < 0.001) and 0.786 (95%CI, 0.643-0.867, P < 0.001), respectively. When establishing a diagnosis of DFO, the AUC of T-VDR expression level was 0.703 (95%CI: 0.618-0.853, P < 0.001). CONCLUSIONS The levels of serum 25(OH)VD and T-VDR expression in DFU and DFO decreased. Serum 25(OH)VD and T-VDR are potentially valuable biomarkers for diagnosis and prognosis of DFU and DFO. .
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Affiliation(s)
- Ying Tang
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui People’s Republic of China
| | - Yixuan Huang
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui People’s Republic of China
| | - Li Luo
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui People’s Republic of China
| | - Murong Xu
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui People’s Republic of China
| | - Datong Deng
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui People’s Republic of China
| | - Zhaohui Fang
- Department of Endocrinology, The First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, Anhui People’s Republic of China
| | - Xiaotong Zhao
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui People’s Republic of China
| | - Mingwei Chen
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui People’s Republic of China
- Department of Endocrinology, The First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei, Anhui People’s Republic of China
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11
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Krizanova O, Penesova A, Sokol J, Hokynkova A, Samadian A, Babula P. Signaling pathways in cutaneous wound healing. Front Physiol 2022; 13:1030851. [PMID: 36505088 PMCID: PMC9732733 DOI: 10.3389/fphys.2022.1030851] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 11/07/2022] [Indexed: 11/27/2022] Open
Abstract
Wound healing is a very complex process, where variety of different pathways is activated, depending on the phase of healing. Improper or interrupted healing might result in development of chronic wounds. Therefore, novel approaches based on detailed knowledge of signalling pathways that are activated during acute or chronic cutaneous wound healing enables quicker and more effective healing. This review outlined new possibilities of cutaneous wound healing by modulation of some signalling molecules, e.g., gasotransmitters, or calcium. Special focus is given to gasotransmitters, since these bioactive signalling molecules that can freely diffuse into the cell and exert antioxidative effects. Calcium is an important booster of immune system and it can significantly contribute to healing process. Special interest is given to chronic wounds caused by diabetes mellitus and overcoming problems with the inflammation.
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Affiliation(s)
- Olga Krizanova
- Institute of Clinical and Translational Research, Biomedical Research Center SAS, Bratislava, Slovakia,Department of Chemistry, Faculty of Natural Sciences, University of St. Cyril and Methodius, Trnava, Slovakia,Department of Physiology, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Adela Penesova
- Institute of Clinical and Translational Research, Biomedical Research Center SAS, Bratislava, Slovakia
| | - Jozef Sokol
- Department of Chemistry, Faculty of Natural Sciences, University of St. Cyril and Methodius, Trnava, Slovakia
| | - Alica Hokynkova
- Department of Burns and Plastic Surgery, Faculty of Medicine, Masaryk University and University Hospital, Brno, Czechia
| | - Amir Samadian
- Department of Physiology, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Petr Babula
- Department of Physiology, Faculty of Medicine, Masaryk University, Brno, Czechia,*Correspondence: Petr Babula,
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Tang W, Chen L, Ma W, Liu G, Chen D, Wang C, Gao Y, Ran X. Association of vitamin D status with all-cause mortality and outcomes among Chinese individuals with diabetic foot ulcers. J Diabetes Investig 2022; 14:122-131. [PMID: 36200877 PMCID: PMC9807158 DOI: 10.1111/jdi.13917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 08/20/2022] [Accepted: 09/15/2022] [Indexed: 01/07/2023] Open
Abstract
AIMS/INTRODUCTION The aim of this study was to examine the correlation between serum vitamin D concentrations and prognosis among Chinese individuals with diabetic foot ulcers (DFUs). MATERIALS AND METHODS We retrospectively recruited 488 adults with DFUs in West China Hospital from 1 January 2012 to 31 December 2019. After telephone follow up, 275 patients were finally included. We compared serum vitamin D concentrations among DFUs patients with different prognostic status, and examined the association of vitamin D status with prognostic variables by Kaplan-Meier analysis. Cox proportional hazards models were used to estimate hazard ratios and 95% confidence intervals for all-cause mortality. RESULTS The median concentration of serum vitamin D of patients with DFUs was 37.78 nmol/L (interquartile range 27.91-50.66 nmol/L), with 31.6% having vitamin D deficiency (<30 nmol/L) and 42.2% having insufficient vitamin D (<50 nmol/L). During a median follow-up period of 52 months, 65 patients died, with an all-cause mortality of 23.64%. Vitamin D deficiency was independently linked to increased all-cause mortality after multivariable adjustments (hazard ratio 0.565, 95% confidence interval 0.338-0.946, P = 0.030). There were no significant differences between vitamin D concentrations and other outcomes of DFUs. Patients who suffered amputations had a tendency of lower vitamin D concentrations (34.00 [interquartile range 26.90-41.81] vs 40.21 [interquartile range 29.60-53.96] nmol/L, P = 0.053). CONCLUSIONS Vitamin D deficiency was significantly associated with increased all-cause mortality in Chinese individuals with DFUs. Vitamin D supplementation might be a potential therapy for DFUs to prevent premature death and improve outcomes.
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Affiliation(s)
- Weiwei Tang
- Department of Endocrinology and Metabolism, Innovation Center for Wound Repair, Diabetic Foot Care Center, West China HospitalSichuan UniversityChengduChina
| | - Lihong Chen
- Department of Endocrinology and Metabolism, Innovation Center for Wound Repair, Diabetic Foot Care Center, West China HospitalSichuan UniversityChengduChina
| | - Wanxia Ma
- Department of Endocrinology and Metabolism, Innovation Center for Wound Repair, Diabetic Foot Care Center, West China HospitalSichuan UniversityChengduChina
| | - Guanjian Liu
- Chinese Cochrane Center, Chinese EBM Center, West China HospitalSichuan UniversityChengduChina
| | - Dawei Chen
- Department of Endocrinology and Metabolism, Innovation Center for Wound Repair, Diabetic Foot Care Center, West China HospitalSichuan UniversityChengduChina
| | - Chun Wang
- Department of Endocrinology and Metabolism, Innovation Center for Wound Repair, Diabetic Foot Care Center, West China HospitalSichuan UniversityChengduChina
| | - Yun Gao
- Department of Endocrinology and Metabolism, Innovation Center for Wound Repair, Diabetic Foot Care Center, West China HospitalSichuan UniversityChengduChina
| | - Xingwu Ran
- Department of Endocrinology and Metabolism, Innovation Center for Wound Repair, Diabetic Foot Care Center, West China HospitalSichuan UniversityChengduChina
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Effect of obesity on the associations of 25-hydroxyvitamin D with prevalent and incident distal sensorimotor polyneuropathy: population-based KORA F4/FF4 study. Int J Obes (Lond) 2022; 46:1366-1374. [PMID: 35474356 PMCID: PMC9239908 DOI: 10.1038/s41366-022-01122-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 04/05/2022] [Accepted: 04/06/2022] [Indexed: 11/09/2022]
Abstract
Background/objectives The association between vitamin D and DSPN has been investigated in cross-sectional studies in individuals with diabetes. However, evidence from prospective and population-based studies is still lacking. Also, the potential modifying effect of obesity and glucose tolerance has not been investigated. Therefore, we examined the cross-sectional and prospective associations of serum 25(OH)D with DSPN and assessed possible effect modifications. Subjects/methods The study included individuals aged 62–81 years who participated in the German KORA F4 (2006–2008) and FF4 (2013–2014) studies. DSPN was assessed using the Michigan Neuropathy Screening Instrument. Cross-sectional analyses (n = 1065; 33% of the participants had obesity) assessed the associations of baseline 25(OH)D with prevalent DSPN, while prospective analyses (n = 422) assessed the associations of 25(OH)D with incident DSPN. Results No association was found between 25(OH)D and prevalent DSPN in the total sample after adjustment for age, sex, season of blood sampling, BMI, metabolic variables, lifestyle factors, and comorbidities. However, a decrease by 10 nmol/L in 25(OH)D was associated with prevalent DSPN (RR (95% CI) 1.08 (1.01, 1.16)) in individuals with obesity but not in normal-weight individuals (RR (95% CI) 0.97 (0.92, 1.02), pinteraction = 0.002). No evidence for effect modification by glucose tolerance was found (p > 0.05). In the prospective analysis, 25(OH)D levels in the first and second tertiles were associated with higher risk of DSPN (RR (95% CI) 1.18 (1.02; 1.38) and 1.40 (1.04; 1.90)) compared to the third tertile after adjustment for age, sex, season of blood sampling, and BMI. There was no evidence for effect modification by obesity or glucose tolerance categories. Conclusions Our study did not show consistent evidence for cross-sectional and prospective associations between serum 25(OH)D levels and DSPN in the total study population of older individuals. However, there was evidence for an association between lower serum 25(OH)D levels and higher prevalence of DSPN in individuals with obesity.
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14
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Putz Z, Tordai D, Hajdú N, Vági OE, Kempler M, Békeffy M, Körei AE, Istenes I, Horváth V, Stoian AP, Rizzo M, Papanas N, Kempler P. Vitamin D in the Prevention and Treatment of Diabetic Neuropathy. Clin Ther 2022; 44:813-823. [DOI: 10.1016/j.clinthera.2022.03.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 03/22/2022] [Accepted: 03/23/2022] [Indexed: 12/17/2022]
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15
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Tang W, Chen L, Ma W, Chen D, Wang C, Gao Y, Ran X. Association Between Vitamin D Status and Diabetic Foot in Patients With Type 2 Diabetes Mellitus. J Diabetes Investig 2022; 13:1213-1221. [PMID: 35191197 PMCID: PMC9248421 DOI: 10.1111/jdi.13776] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 01/30/2022] [Accepted: 02/20/2022] [Indexed: 02/05/2023] Open
Abstract
Aims/Introduction To assess the association between vitamin D and diabetic foot (DF) in patients with type 2 diabetes mellitus (T2DM), in order to summarize clinical evidence in the prevention and treatment of DF. Materials and methods Between January 2012 and December 2019, a total of 1,721 hospitalized patients with type 2 diabetes mellitus were continuously enrolled in West China Hospital, Sichuan University, and divided into DF and non‐DF groups according to whether they had DF, and divided into four subgroups according to the admission season. The 25‐OH‐vitamin D levels were compared between groups and subgroups, and independent risk factors discussed for the occurrence of DF. Results The vitamin D insufficiency and deficiency rate were higher in the DF group (77.51%) than in the non‐DF group (59.2%). The 25‐OH‐vitamin D levels were lower in the DF group (35.80 nmol/L) than in the non‐DF group (45.48 nmol/L) (P < 0.001). Patients with poor glycemic control had lower 25‐OH‐vitamin D levels (P = 0.01). The levels of 25‐OH‐vitamin D were lower in winter and spring. In the same season, the levels of 25‐OH‐vitamin D in patients with DF were still lower (P < 0.001). The 25‐OH‐vitamin D levels of patients with Wagner grades 0 to 5 showed a downward trend (P = 0.114). The 25‐OH‐vitamin D level was independently associated with diabetic foot (P < 0.001, OR = 0.986). Conclusions The low serum vitamin D level was significantly associated with a higher prevalence of DF among Chinese patients with type 2 diabetes mellitus. Although vitamin D levels vary seasonally, patients with DF were always at higher risk of having vitamin D insufficiency and deficiency.
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Affiliation(s)
- Weiwei Tang
- Innovation Center for Wound Repair, Diabetic Foot Care Center, Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Lihong Chen
- Innovation Center for Wound Repair, Diabetic Foot Care Center, Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Wanxia Ma
- Innovation Center for Wound Repair, Diabetic Foot Care Center, Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Dawei Chen
- Innovation Center for Wound Repair, Diabetic Foot Care Center, Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Chun Wang
- Innovation Center for Wound Repair, Diabetic Foot Care Center, Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Yun Gao
- Innovation Center for Wound Repair, Diabetic Foot Care Center, Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Xingwu Ran
- Innovation Center for Wound Repair, Diabetic Foot Care Center, Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
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16
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Henn D, Chen K, Fehlmann T, Trotsyuk AA, Sivaraj D, Maan ZN, Bonham CA, Barrera JA, Mays CJ, Greco AH, Moortgat Illouz SE, Lin JQ, Steele SR, Foster DS, Padmanabhan J, Momeni A, Nguyen D, Wan DC, Kneser U, Januszyk M, Keller A, Longaker MT, Gurtner GC. Xenogeneic skin transplantation promotes angiogenesis and tissue regeneration through activated Trem2 + macrophages. SCIENCE ADVANCES 2021; 7:eabi4528. [PMID: 34851663 PMCID: PMC8635426 DOI: 10.1126/sciadv.abi4528] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 10/09/2021] [Indexed: 05/07/2023]
Abstract
Skin allo- and xenotransplantation are the standard treatment for major burns when donor sites for autografts are not available. The relationship between the immune response to foreign grafts and their impact on wound healing has not been fully elucidated. Here, we investigated changes in collagen architecture after xenogeneic implantation of human biologic scaffolds. We show that collagen deposition in response to the implantation of human split-thickness skin grafts (hSTSGs) containing live cells recapitulates normal skin architecture, whereas human acellular dermal matrix (ADM) grafts led to a fibrotic collagen deposition. We show that macrophage differentiation in response to hSTSG implantation is driven toward regenerative Trem2+ subpopulations and found that hydrogel delivery of these cells significantly accelerated wound closure. Our study identifies the preclinical therapeutic potential of Trem2+ macrophages to mitigate fibrosis and promote wound healing, providing a novel effective strategy to develop advanced cell therapies for complex wounds.
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Affiliation(s)
- Dominic Henn
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, CA, USA
- Department of Hand, Plastic, and Reconstructive Surgery, BG Trauma Center Ludwigshafen, Ruprecht-Karls-University of Heidelberg, Heidelberg, Germany
| | - Kellen Chen
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, CA, USA
| | - Tobias Fehlmann
- Chair for Clinical Bioinformatics, Saarland University, Saarbrücken, Germany
| | - Artem A. Trotsyuk
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, CA, USA
| | - Dharshan Sivaraj
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, CA, USA
| | - Zeshaan N. Maan
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, CA, USA
| | - Clark A. Bonham
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, CA, USA
| | - Janos A. Barrera
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, CA, USA
| | - Chyna J. Mays
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, CA, USA
| | - Autumn H. Greco
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, CA, USA
| | - Sylvia E. Moortgat Illouz
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, CA, USA
| | - John Qian Lin
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, CA, USA
| | - Sydney R. Steele
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, CA, USA
| | - Deshka S. Foster
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, CA, USA
| | - Jagannath Padmanabhan
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, CA, USA
| | - Arash Momeni
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, CA, USA
| | - Dung Nguyen
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, CA, USA
| | - Derrick C. Wan
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, CA, USA
| | - Ulrich Kneser
- Department of Hand, Plastic, and Reconstructive Surgery, BG Trauma Center Ludwigshafen, Ruprecht-Karls-University of Heidelberg, Heidelberg, Germany
| | - Michael Januszyk
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, CA, USA
| | - Andreas Keller
- Chair for Clinical Bioinformatics, Saarland University, Saarbrücken, Germany
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, USA
| | - Michael T. Longaker
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, CA, USA
| | - Geoffrey C. Gurtner
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University, Stanford, CA, USA
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Yarahmadi A, Alamdari DH, Azarpira N, Mostafavi-Pour Z. Vitamin D and diabetic foot ulcers: A missed topic. INT J VITAM NUTR RES 2021; 92:83-84. [PMID: 34587813 DOI: 10.1024/0300-9831/a000731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Amir Yarahmadi
- Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Daryoush Hamidi Alamdari
- Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Negar Azarpira
- Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zohreh Mostafavi-Pour
- Department of Biochemistry, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.,Autophagy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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Xiao Y, Wei L, Xiong X, Yang M, Sun L. Association Between Vitamin D Status and Diabetic Complications in Patients With Type 2 Diabetes Mellitus: A Cross-Sectional Study in Hunan China. Front Endocrinol (Lausanne) 2020; 11:564738. [PMID: 33042022 PMCID: PMC7525149 DOI: 10.3389/fendo.2020.564738] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 08/18/2020] [Indexed: 12/12/2022] Open
Abstract
Background: Vitamin D status has been linked to diabetes-related complications due to multiple extraskeletal effects. We aimed to investigate the association between vitamin D deficiency (VDD) and diabetic vascular complications, including diabetic retinopathy (DR), diabetic kidney disease (DKD), and diabetic foot ulcers (DFU). Methods: A total of 4,284 Chinese patients with type 2 diabetic mellitus (T2DM) were enrolled into the cross-sectional study. VDD was defined as serum 25-hydroxyvitamin D <50 nmol/L. Demographic data, physical measurements, laboratory measurements, comorbidities, and related medications were collected and analyzed by VDD status. Poisson regression with robust variance estimation and binary logistic regression were performed to explore the relationship between VDD and diabetic complications. Results: The prevalence of VDD, DR, DKD, DFU accounted to 71.7% (95% confidence intervals [CI]: 70.3-73.0%), 28.5% (95% CI: 27.2-29.9%), 28.2% (95% CI: 26.8-29.5%), and 5.7% (95% CI: 5.1-6.5%), respectively. The prevalence ratios (95% CI) for DR and DKD by VDD status, adjusted for demographics, physical measurements, laboratory measurements, related complications, and comorbidities, and medications, were 1.093 (0.983-1.215) and 1.041 (0.937-1.156), respectively. The odds ratio (95% CI) for DFU by VDD status was 1.656 (1.159-2.367) in the final adjusted model. Meanwhile, the prevalence of VDD was significantly higher in patients with DFU compared with patients without DFU. Conclusions: The present study firstly indicated that VDD was significantly associated with a higher prevalence of DFU among Chinese T2DM patients. The association between VDD status and DR or DKD was not significant when adjusting for all potential covariates. Vitamin D screening or supplementation may be beneficial to prevent DFU and improve the prognosis of T2DM patients.
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