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Dedinská I, Kleinová P, Macháleková K, Graňák K, Vnučák M, Beliančinová M. The role of hyperleptinaemia and low values of interleukin 10 in de novo DSA production after kidney transplantation. Transpl Immunol 2024; 83:101982. [PMID: 38218229 DOI: 10.1016/j.trim.2023.101982] [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: 04/04/2023] [Revised: 12/20/2023] [Accepted: 12/31/2023] [Indexed: 01/15/2024]
Abstract
BACKGROUND White adipose tissue secretes a number of peptide hormones. The aim of this paper was to determine the role of leptin, adiponectin and interleukin-10 and interleukin-6 on the development of graft rejection in protocol biopsy after kidney transplantation. METHODS In a prospective analysis (n = 104), we monitored the values of leptin, adiponectin, IL-6, and IL-10 prior to the transplantation and in the 3rd month after the transplantation. The protocol biopsy of the graft was performed in the 3rd month after the transplantation. The group was divided into the following according to the biopsy result: negative result, IFTA 1, borderline, and DSA positive. RESULTS After adjusting for the differences in the baseline recipient and donor characteristics, we identified the hyperleptinaemia baseline (HR = 2.0444, P = 0.0341) and month 3 (HR = 49.8043, P < 0.0001) as independent risk factors for borderline changes in the protocol biopsy. The hyperleptinaemia baseline (HR = 7.4979, P = 0.0071) and month 3 (HR = 9.7432, P = 0.0057) are independent risk factors for de novo DSA positivity. A low value of IL-10 month 3 is a risk factor for de novo DSA positivity (HR = 3.0746, P = 0.0388). CONCLUSIONS Higher leptin levels and low values of IL-10 might play a role in rejection and de novo DSA production.
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Affiliation(s)
- Ivana Dedinská
- Transplant Center, University Hospital Martin and Jessenius Faculty of Medicine Comenius University, Slovak Republic; Department of Internal Diseases I, University Hospital Martin and Jessenius Faculty of Medicine Comenius University, Slovak Republic.
| | - Patrícia Kleinová
- Transplant Center, University Hospital Martin and Jessenius Faculty of Medicine Comenius University, Slovak Republic; Department of Internal Diseases I, University Hospital Martin and Jessenius Faculty of Medicine Comenius University, Slovak Republic
| | - Katarína Macháleková
- Department od Pathology, St. Elizabeth Cancer Institute, Bratislava, Slovak Republic
| | - Karol Graňák
- Transplant Center, University Hospital Martin and Jessenius Faculty of Medicine Comenius University, Slovak Republic; Department of Internal Diseases I, University Hospital Martin and Jessenius Faculty of Medicine Comenius University, Slovak Republic
| | - Matej Vnučák
- Transplant Center, University Hospital Martin and Jessenius Faculty of Medicine Comenius University, Slovak Republic; Department of Internal Diseases I, University Hospital Martin and Jessenius Faculty of Medicine Comenius University, Slovak Republic
| | - Monika Beliančinová
- Transplant Center, University Hospital Martin and Jessenius Faculty of Medicine Comenius University, Slovak Republic; Department of Internal Diseases I, University Hospital Martin and Jessenius Faculty of Medicine Comenius University, Slovak Republic
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Karava V, Christoforidis A, Kondou A, Dotis J, Printza N. Update on the Crosstalk Between Adipose Tissue and Mineral Balance in General Population and Chronic Kidney Disease. Front Pediatr 2021; 9:696942. [PMID: 34422722 PMCID: PMC8378583 DOI: 10.3389/fped.2021.696942] [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: 04/18/2021] [Accepted: 07/06/2021] [Indexed: 11/17/2022] Open
Abstract
Adipose tissue is nowadays considered as a major endocrine organ, which apart from controlling lipid metabolism, displays a significant role in energy expenditure, food intake and in the regulation of various systemic physiological processes. Adipose derived pro-inflammatory cytokines and adipokines, particularly leptin and adiponectin, provide inter-communication of adipose tissue with various metabolic pathways, ultimately resulting in a complex network of interconnected organ systems. Recent clinical and experimental research has been focused on exploring the direct interaction between adipokine profile and elements of mineral metabolism, including parathormone (PTH), fibroblast growth factor-23 (FGF23) and calcitriol. The emerging crosstalk between adipose tissue and calcium and phosphorus homeostasis suggests that metabolic disorders from one system may directly affect the other and vice versa. It is current knowledge that fat metabolism disturbance, commonly encountered in obese individuals, influences the expression of calciotriopic hormones in general population, while various clinical trials attempting to successfully achieve body fat loss by modulating mineral profile have been published. In chronic kidney disease (CKD) state, there is an increasing evidence suggesting that mineral disorders, influence adipose tissue and linked endocrine function. On the contrary, the impact of disturbed fat metabolism on CKD related mineral disorders has been also evocated in clinical studies. Recognizing the pathogenetic mechanisms of communication between adipose tissue and mineral balance is critical for understanding the effects of metabolic perturbations from the one system to the other and for identifying possible therapeutic targets in case of disrupted homeostasis in one of the two connected systems. To that end, this review aims to enlighten the recent advances regarding the interplay between mineral metabolism, fat mass and adipokine profile, based on in vitro, in vivo and clinical studies, in general population and in the course of CKD.
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Affiliation(s)
- Vasiliki Karava
- Pediatric Nephrology Unit, 1st Department of Pediatrics, Hippokratio General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Athanasios Christoforidis
- Pediatric Endocrinology Unit, 1st Department of Pediatrics, Hippokratio General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Antonia Kondou
- Pediatric Nephrology Unit, 1st Department of Pediatrics, Hippokratio General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - John Dotis
- Pediatric Nephrology Unit, 1st Department of Pediatrics, Hippokratio General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Nikoleta Printza
- Pediatric Nephrology Unit, 1st Department of Pediatrics, Hippokratio General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
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El-Khashab SO, Behiry ME. Adiponectin and ghrelin: nutritional regulatory role in chronic kidney disease patients. THE EGYPTIAN JOURNAL OF INTERNAL MEDICINE 2019. [DOI: 10.4103/ejim.ejim_78_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Sharma G, Kuppler C, He Y, Tao M, Ding K, Longchamp A, Dember LM, Ozaki CK, Berceli SA. Local Adipose-Associated Mediators and Adaptations Following Arteriovenous Fistula Creation. Kidney Int Rep 2018; 3:970-978. [PMID: 29988980 PMCID: PMC6035127 DOI: 10.1016/j.ekir.2018.02.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 02/18/2018] [Indexed: 12/21/2022] Open
Abstract
Introduction Local inflammation is an important regulator of vascular remodeling. We hypothesized that adipose tissue adjacent to hemodialysis arteriovenous fistulae modulates maturation. Methods During fistula creation, perivenous adipose was collected from 111 participants in the Hemodialysis Fistula Maturation Study. Nine adipose-associated mediators were measured. Duplex ultrasound was performed at 4 time points postoperatively from 1 day to first cannulation (10–26 weeks). Associations between logarithmically transformed biomarker levels and fistula remodeling were evaluated using mixed effects regression. Results Elevated interleukin (IL)-6 and monocyte chemoattractant protein (MCP)-1 were associated with a reduction in the fractional vein diameter during the early time frame of 1 day to 2 weeks (diameter change of 26.6% and 20.4% at the 25th and 75th percentile for IL-6, P = 0.01; 27.8% and 21.1% at the 25th and 75th percentile for MCP-1, P = 0.02), but not in later stages of remodeling. Local leptin levels showed a significant negative correlation with fractional venous flow increase between 2 and 6 weeks (percent flow change 31.4% and 11.3% at the 25th and 75th percentile for leptin, P = 0.03). Conclusion Thus, impaired fistula vein dilation and reduced capacity for flow augmentation associate with specific local adipose phenotypic signatures in a time-dependent manner. In view of adipose tissue plasticity, these findings raise the possibility of novel adipose-based strategies to facilitate fistula maturation.
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Affiliation(s)
- Gaurav Sharma
- Division of Vascular and Endovascular Surgery, Brigham and Women's Heart and Vascular Center/Harvard Medical School, Boston, Massachusetts, USA
| | - Christopher Kuppler
- Malcom Randall Veterans Affairs Medical Center, Gainesville, Florida, USA.,Division of Vascular Surgery & Endovascular Therapy, University of Florida, Gainesville, Florida, USA
| | - Yong He
- Malcom Randall Veterans Affairs Medical Center, Gainesville, Florida, USA.,Division of Vascular Surgery & Endovascular Therapy, University of Florida, Gainesville, Florida, USA
| | - Ming Tao
- Division of Vascular and Endovascular Surgery, Brigham and Women's Heart and Vascular Center/Harvard Medical School, Boston, Massachusetts, USA
| | - Kui Ding
- Division of Vascular and Endovascular Surgery, Brigham and Women's Heart and Vascular Center/Harvard Medical School, Boston, Massachusetts, USA
| | - Alban Longchamp
- Division of Vascular and Endovascular Surgery, Brigham and Women's Heart and Vascular Center/Harvard Medical School, Boston, Massachusetts, USA
| | - Laura M Dember
- Renal, Electrolyte and Hypertension Division, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - C Keith Ozaki
- Division of Vascular and Endovascular Surgery, Brigham and Women's Heart and Vascular Center/Harvard Medical School, Boston, Massachusetts, USA
| | - Scott A Berceli
- Malcom Randall Veterans Affairs Medical Center, Gainesville, Florida, USA.,Division of Vascular Surgery & Endovascular Therapy, University of Florida, Gainesville, Florida, USA
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Ali N, Ismail M, Khan A, Khan H, Haider S, Kamal T. Spectrophotometric methods for the determination of urea in real samples using silver nanoparticles by standard addition and 2nd order derivative methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 189:110-115. [PMID: 28802857 DOI: 10.1016/j.saa.2017.07.063] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Revised: 07/18/2017] [Accepted: 07/30/2017] [Indexed: 06/07/2023]
Abstract
In this work, we have developed simple, sensitive and inexpensive methods for the spectrophotometric determination of urea in urine samples using silver nanoparticles (AgNPs). The standard addition and 2nd order derivative methods were adopted for this purpose. AgNPs were prepared by chemical reduction of AgNO3 with hydrazine using 1,3-di-(1H-imidazol-1-yl)-2-propanol (DIPO) as a stabilizing agent in aqueous medium. The proposed methods were based on the complexation of AgNPs with urea. Using this concept, urea in the urine samples was successfully determined spectrophotometric methods. The results showed high percent recovery with ±RSD. The recoveries of urea in the three urine samples by spectrophotometric standard addition were 99.2%±5.37, 96.3%±4.49, 104.88%±4.99 and that of spectrophotometric 2nd order derivative method were 115.3%±5.2, 103.4%±2.6, 105.93%±0.76. The results show that these methods can open doors for a potential role of AgNPs in the clinical determination of urea in urine, blood, biological, non-biological fluids.
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Affiliation(s)
- Nauman Ali
- Institute of Chemical Sciences, University of Peshawar, Peshawar 25120, Pakistan.
| | - Muhammad Ismail
- Institute of Chemical Sciences, University of Peshawar, Peshawar 25120, Pakistan
| | - Adnan Khan
- Institute of Chemical Sciences, University of Peshawar, Peshawar 25120, Pakistan
| | - Hamayun Khan
- Department of Chemistry, Islamia College University, Peshawar 25120, Pakistan
| | - Sajjad Haider
- Department of Chemical Engineering, College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia
| | - Tahseen Kamal
- Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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Association of Increased Serum Leptin with Ameliorated Anemia and Malnutrition in Stage 5 Chronic Kidney Disease Patients after Parathyroidectomy. Sci Rep 2016; 6:27918. [PMID: 27307101 PMCID: PMC4910047 DOI: 10.1038/srep27918] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 05/26/2016] [Indexed: 01/11/2023] Open
Abstract
Leptin is an adipokine that regulates various metabolism, but its association with secondary hyperparathyroidism (SHPT), a clinical manifestation of chronic kidney disease-mineral and bone disorder (CKD-MBD), remains obscure. Parathyroidectomy (PTX) is recommended for severe SHPT patients. Here, the associations between circulating leptin and clinical characteristics in CKD patients were investigated. Effects of PTX on leptin production were analyzed in vivo and in vitro. Controls and CKD patients had approximate serum leptin levels in that a larger proportion of CKD patients with body mass index (BMI) <23 kg/m2. Serum leptin was related to anemia, albumin, and bone metabolism disorders in CKD patients. Lower intact parathyroid hormone (PTH) was related with higher leptin in PTX patients group. Severe SHPT inhibited uremia-enhanced leptin production in 3T3-L1 adipocytes, which was attenuated after PTX. High levels of PTH were found to reduce Akt phosphorylation and leptin production in vitro but high levels of calcium and phosphorus were not. Successful PTX was found to improve anemia and malnutrition in severe SHPT patients, and this was correlated with increased circulating leptin levels via up-regulated Akt signaling in adipocytes. These findings indicated the therapeutic potential of leptin and related target pathway for improving survival and quality of life in CKD.
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Nagy K, Nagaraju SP, Rhee CM, Mathe Z, Molnar MZ. Adipocytokines in renal transplant recipients. Clin Kidney J 2016; 9:359-73. [PMID: 27274819 PMCID: PMC4886901 DOI: 10.1093/ckj/sfv156] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 12/18/2015] [Indexed: 02/07/2023] Open
Abstract
In the last two decades, perceptions about the role of body fat have changed. Adipocytes modulate endocrine and immune homeostasis by synthesizing hundreds of hormones, known as adipocytokines. Many studies have been investigating the influences and effects of these adipocytokines and suggest that they are modulated by the nutritional and immunologic milieu. Kidney transplant recipients (KTRs) are a unique and relevant population in which the function of adipocytokines can be examined, given their altered nutritional and immune status and subsequent dysregulation of adipocytokine metabolism. In this review, we summarize the recent findings about four specific adipocytokines and their respective roles in KTRs. We decided to evaluate the most widely described adipocytokines, including leptin, adiponectin, visfatin and resistin. Increasing evidence suggests that these adipocytokines may lead to cardiovascular events and metabolic changes in the general population and may also increase mortality and graft loss rate in KTRs. In addition, we present findings on the interrelationship between serum adipocytokine levels and nutritional and immunologic status, and mechanisms by which adipocytokines modulate morbidity and outcomes in KTRs.
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Affiliation(s)
- Kristof Nagy
- Department of Transplantation and Surgery , Semmelweis University , Budapest , Hungary
| | | | - Connie M Rhee
- Harold Simmons Center for Chronic Disease Research and Epidemiology, Division of Nephrology and Hypertension , University of California Irvine , Orange, CA , USA
| | - Zoltan Mathe
- Department of Transplantation and Surgery , Semmelweis University , Budapest , Hungary
| | - Miklos Z Molnar
- Division of Nephrology, Department of Medicine , University of Tennessee Health Science Center , Memphis, TN , USA
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Heidari M, Nasri P, Nasri H. Adiponectin and chronic kidney disease; a review on recent findings. J Nephropharmacol 2015; 4:63-68. [PMID: 28197480 PMCID: PMC5297487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 07/13/2015] [Indexed: 12/02/2022] Open
Abstract
Adiponectin is a multifunctional cytokine that has a role in regulating inflammation. In patients without chronic renal failure (CRF) and type 2 diabetics, decreased adiponectin levels are associated with insulin resistance. Lower serum plasma adiponectin values are link to larger tumor size and metastasis in clear-cell carcinoma of the kidney too. However, in patients with established chronic kidney disease (CKD), adiponectin levels are elevated and positively predict progression of disease. In addition, increased levels of serum adiponectin of hemodialysis patients were associated with decrease in bone mineral density in hemodialysis patients. Thus, depending on type of renal failure should be adjusted the adiponectin levels in patients. In CKD patients without diabetic, decreasing adiponectin levels by ARB drugs may be appropriate for inhibition of disease progression.
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Affiliation(s)
- Maryam Heidari
- Department of Internal Medicine, Division of Nephrology, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Parto Nasri
- Department of Nephrology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hamid Nasri
- Department of Nephrology, Isfahan University of Medical Sciences, Isfahan, Iran
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Adipose phenotype predicts early human autogenous arteriovenous hemodialysis remodeling. J Vasc Surg 2014; 63:171-6.e1. [PMID: 25264363 DOI: 10.1016/j.jvs.2014.06.110] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Accepted: 06/12/2014] [Indexed: 12/30/2022]
Abstract
OBJECTIVE Substantial proportions of autogenous arteriovenous fistulas (AVFs) for hemodialysis access fail to mature for unclear reasons. AVFs develop in a large mass of surrounding adipose tissue that is increasingly recognized as an active participant in the vascular response to injury via paracrine and endocrine mechanisms. We thus hypothesized that baseline phenotypic characteristics of the adipose tissue juxtaposed to the developing AVF associate with subsequent inward or outward vein wall remodeling. METHODS Clinical data and subcutaneous adipose tissue were collected from 22 consented patients undergoing AVF creation. Tissue was assayed (protein levels) for interleukin (IL)-6, IL-8, leptin, tumor necrosis factor-α, monocyte chemoattractant protein-1 (MCP-1), resistin, and adiponectin. Vein dimensions were acquired by duplex ultrasound imaging, preoperatively and at 4 to 6 weeks postoperatively, 1 cm cephalad to the arteriovenous anastomosis, which is the most common location of AVF stenosis). RESULTS The vein at the assayed location outwardly remodeled 55.7% on average (median before, 3.7 mm; median after, 4.7 mm; P = .005). The preoperative vein diameter failed to correlate with postoperative size at the point of assay (R = 0.31; P = .155) unless two outliers were excluded (R = 0.64; P = .002). After removal of the same outliers, the correlation coefficient between venous diameter change (preoperative vs postoperative) and IL-8, tumor necrosis factor-α, MCP-1, resistin, and adiponectin was -0.49, -0.79, -0.66, -0.64, and -0.69, respectively (P < .05). Postoperative AVF flow volume correlated with MCP-1 (R = -0.53; P < .05) and adiponectin (R = -0.47; P < .05). CONCLUSIONS These data reveal a novel relationship between local adipose phenotype and the eventual venous wall response to hemodynamic perturbation in humans. The predictive value of these mediators generally equaled or exceeded that of preoperative vein size. Beyond providing mechanistic insights into vascular wall adaptations due to flow perturbations, this discovery suggests that strategies focused on altering adipose tissue biology may improve AVF maturation.
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Leptin in chronic kidney disease: a link between hematopoiesis, bone metabolism, and nutrition. Int Urol Nephrol 2013; 46:1169-74. [PMID: 24338492 DOI: 10.1007/s11255-013-0623-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Accepted: 12/03/2013] [Indexed: 10/25/2022]
Abstract
Anemia, dyslipidemia, malnutrition, together with mineral and bone disorders are common complications in patients with chronic kidney disease (CKD). All are associated with increased risk of mortality. Leptin is a small peptide hormone that is mainly but not exclusively produced in adipose tissue. It is also secreted by normal human osteoblasts, subchondral osteoblasts, placental syncytiotrophoblasts, and the gastric epithelium. Leptin binds to its receptors in the hypothalamus to regulate bone metabolism and food intake. Leptin also has several other important metabolic effects on peripheral tissues, including the liver, skeletal muscle, and bone marrow. Leptin is cleared principally by the kidney. Not surprisingly, serum leptin appears to increase concurrently with declines in the glomerular filtration rate in patients with CKD. A growing body of evidence suggests that leptin might be closely related to hematopoiesis, nutrition, and bone metabolism in CKD patients. Results are conflicting regarding leptin in patients with CKD, in whom both beneficial and detrimental effects on uremia outcome are found. This review elucidates the discovery of leptin and its receptors, changes in serum or plasma leptin levels, the functions of leptin, relationships between leptin and the complications mentioned above, and pharmaceutical interventions in serum leptin levels in patients with CKD.
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Yu P, Nguyen BT, Tao M, Jiang T, Ozaki CK. Diet-induced obesity drives negative mouse vein graft wall remodeling. J Vasc Surg 2013; 59:1670-6. [PMID: 23876511 DOI: 10.1016/j.jvs.2013.05.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Revised: 05/07/2013] [Accepted: 05/10/2013] [Indexed: 11/26/2022]
Abstract
INTRODUCTION The heightened inflammatory phenotype associated with obesity has been linked to the development of cardiovascular diseases. Short-term high-fat feeding induces a proinflammatory state that may impact the blood vessel wall. CD11c, a significantly increased dendritic cell biomarker during diet-induced obesity (DIO), may have a mechanistic role in this high-fat feeding effect. We hypothesized that the proinflammatory effect of short-term DIO accelerates vein bypass graft failure via CD11c-dependent mechanisms. METHODS Male 9-week-old DIO mice (n = 13, C57BL/6J recipients; n = 6, CD11c(-/-) recipients) and normal chow controls (n = 15, C57BL/6J recipients; n = 6, CD11c(-/-) recipients) underwent unilateral carotid interposition vein isografting (inferior vena cava from the same diet and genetic background donor), with a midgraft or outflow focal stenosis. Vein grafts were harvested at either 1 week (immunohistochemical staining for early CD11c expression) or 4 weeks later (morphometric analyses and CD11c evaluation). RESULTS Despite a 40% larger body size, C57BL/6J DIO mice had 44% smaller poststenosis vein graft lumens (P = .03) than their controls via an acceleration of overall negative vein graft wall remodeling in the day-28 midgraft focal stenosis model but not in the outflow stenosis model. Higher CD11c expression occurred in DIO midgraft-stenosis vein graft walls, both at postoperative days 7 and 28. In contrast, with in vivo CD11c deficiency, DIO did not elicit this poststenotic negative remodeling but attenuated intimal hyperplasia. CONCLUSIONS These findings highlight negative wall remodeling as a potential factor leading to vein graft failure and provide direct evidence that short-term dietary alterations in the mammalian metabolic milieu can have lasting implications related to acute vascular interventions. DIO induces negative mouse vein graft wall remodeling via CD11c-depedent pathways.
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Affiliation(s)
- Peng Yu
- Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital/Harvard Medical School, Boston, Mass
| | - Binh T Nguyen
- Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital/Harvard Medical School, Boston, Mass
| | - Ming Tao
- Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital/Harvard Medical School, Boston, Mass
| | - Tianyu Jiang
- Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital/Harvard Medical School, Boston, Mass
| | - C Keith Ozaki
- Division of Vascular and Endovascular Surgery, Brigham and Women's Hospital/Harvard Medical School, Boston, Mass.
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