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Liu Z, Daniels T, Campen MJ, Alvidrez RIM. Inflammatory atherosclerotic plaque identification by SPECT/CT imaging of LFA-1 using [ 111In] In-DANBIRT in a novel dyslipidemic rat model. Ann Nucl Med 2023; 37:635-643. [PMID: 37742306 DOI: 10.1007/s12149-023-01868-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 09/11/2023] [Indexed: 09/26/2023]
Abstract
INTRODUCTION Atherosclerosis is prevalent globally, closely associated with dyslipidemia and other metabolic dysfunction. Early diagnosis of atherosclerosis is challenging due to limited diagnostic capabilities that need to be expanded with animal models with enhanced vascular biology like rats. Our previous research showed [111In] In-DANBIRT has potential as a diagnostic tool for detecting atherosclerosis in mice. The primary aim of the present study is to evaluate [111In] In-DANBIRT in a novel atherosclerotic rat with early- and late-stage atherosclerosis and metabolic disease. METHODS We characterized metabolic and body composition differences in these novel dyslipidemic rats under different diets using serum chemistry and dual-energy X-ray absorptiometry (DEXA) scan, respectively. We performed 1-h post-injection in vivo molecular imaging of ApoE knockout, lean Zucker (LZ) male rats at baseline and followed them into 10 weeks of either normal or high-fat/cholesterol diet implementation (22 weeks of age). RESULTS We identified significant differences in body composition and metabolic changes in ApoE knockout rats compared to ApoE wildtype rats. Our findings indicate an increased uptake of [111In] In-DANBIRT in ApoE knockout, lean Zucker (LZ) rats, particularly in the descending aorta, a location where early-stage atherosclerosis is commonly found. Our findings, however, also revealed that the ApoE knockout, Zucker diabetic fatty (ZDF) model has high mortality rate, which may be attributed to alterations of critical enzymes involved in regulating metabolism and liver function. CONCLUSION Our results are highly encouraging as they demonstrated the potential of [111In] In-DANBIRT to detect early-stage atherosclerosis in rats that might otherwise go unnoticed by other methods, showcasing the high sensitivity of [111In] In-DANBIRT. Our future studies will aim to establish a viable T2D atherosclerosis model in rats with more advanced stages of the disease to further demonstrate the reliability of [111In] In-DANBIRT as a diagnostic tool for patients in all stages of atherosclerosis.
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Affiliation(s)
- Zeyu Liu
- Trauma and Transfusion Medicine Research Center, Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, 15213, USA
| | - Tamara Daniels
- Department of Radiopharmaceutical Sciences, University of New Mexico College of Pharmacy, Albuquerque, NM, 87131, USA
- College of Pharmacy, Health Sciences Center, University of New Mexico, Albuquerque, NM, 87131, USA
- Pharmaceutical Sciences, College of Pharmacy, University of New Mexico, Albuquerque, NM, 87106, USA
| | - Matthew J Campen
- College of Pharmacy, Health Sciences Center, University of New Mexico, Albuquerque, NM, 87131, USA
- Clinical and Translational Science Center, University of New Mexico, Albuquerque, NM, 87131, USA
- Pharmaceutical Sciences, College of Pharmacy, University of New Mexico, Albuquerque, NM, 87106, USA
| | - Roberto Ivan Mota Alvidrez
- Trauma and Transfusion Medicine Research Center, Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, 15213, USA.
- Department of Radiopharmaceutical Sciences, University of New Mexico College of Pharmacy, Albuquerque, NM, 87131, USA.
- College of Pharmacy, Health Sciences Center, University of New Mexico, Albuquerque, NM, 87131, USA.
- Pittsburgh Liver Research Center Institute, University of Pittsburgh, Pittsburgh, PA, 15213, USA.
- Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, 15213, USA.
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, 15213, USA.
- Clinical and Translational Science Center, University of New Mexico, Albuquerque, NM, 87131, USA.
- Pharmaceutical Sciences, College of Pharmacy, University of New Mexico, Albuquerque, NM, 87106, USA.
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Research Progress of Programmed Cell Death Induced by Acrylamide. J FOOD QUALITY 2023. [DOI: 10.1155/2023/3130174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
Abstract
Acrylamide exposure through environment pollution and diet is very common in daily life. With the deepening of the study on the toxicity of acrylamide, it has attracted widespread attention for the effects of acrylamide on multiple organs through affecting a variety of programmed cell death. Multiple studies have shown that acrylamide could exert its toxic effect by inducing programmed cell death, but its specific molecular mechanism is still unclear. In this review, the research on the main forms of programmed cell death (apoptosis, autophagy, and programmed necrosis) induced by acrylamide and their possible mechanisms are reviewed. This review may provide basic data for further research of acrylamide and prevention of its toxicity.
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Selim DA, Shawky E, Ghareeb DA, Abdulmalek SA, Abu El-Khair RM. Comparative metabolomics of the different fractions of two saltwort (Salsola L.) species in relation to their anti-inflammatory activity. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2022.102306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Characterization of the Impacts of Living at High Altitude in Taif: Oxidative Stress Biomarker Alterations and Immunohistochemical Changes. Curr Issues Mol Biol 2022; 44:1610-1625. [PMID: 35723368 PMCID: PMC9164078 DOI: 10.3390/cimb44040110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 04/05/2022] [Accepted: 04/06/2022] [Indexed: 11/17/2022] Open
Abstract
At high elevations, the human body experiences a number of pathological, physiological, and biochemical changes, all of which have adverse impacts on human health and organ vitality. This study aimed to investigate the alterations in the liver and kidney biomarkers, oxidative stress markers, gene expression, and cellular histology of rats maintained at high altitudes and normal sea level. A total of twenty male Wistar rats at 2 months of age were randomly assigned to two groups. The rats in group A were maintained at normal sea level in Jeddah, whereas rats in group B were maintained in an area in Taif 2600 m above sea level. After 2 months of housing, orbital blood samples were collected for the analysis of significant biochemical indicators of oxidative stress biomarkers of the liver and kidneys. Liver and kidney tissues from both groups were taken to examine the hepatorenal changes occurring at the biochemical, histological, immunohistochemical, and genetic levels. The results revealed substantial increases in the serum levels of liver and kidney biomarkers (GPT, GOT, urea, and creatinine) and decreases in the serum levels of antioxidant biomarkers (SOD, catalase, GSH, and NO). In parallel, the levels of the malondialdehyde (MDA) tissue damage marker and inflammatory cytokines (IL-1β, TNF-α, and IFN-γ) were increased in the high-altitude group compared to the normal sea level group. In addition, there were significant alterations in the oxidative and inflammatory status of rats that lived at high altitude, with considerable upregulation in the expression of hepatic VEGF, type 1 collagen, Cox-2, TNF-α, and iNOS as well as renal EPASI, CMYC, HIF-α, and EGLN-2 genes in the high-altitude group compared with controls housed at normal sea level. In conclusion, living at high altitude induces hepatorenal damage and biochemical and molecular alterations, all of which may serve as critical factors that must be taken into account for organisms living at high altitudes.
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