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Zhong G, Chen L, Lin Z, Xiang Z. Evaluation of renal function in chronic kidney disease using histogram analysis based on multiple diffusion models. Br J Radiol 2024; 97:803-811. [PMID: 38291900 PMCID: PMC11027312 DOI: 10.1093/bjr/tqae024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/22/2023] [Accepted: 01/24/2024] [Indexed: 02/01/2024] Open
Abstract
OBJECTIVES To compare the diagnostic value of histogram features of multiple diffusion metrics in predicting early renal impairment in chronic kidney disease (CKD). METHODS A total of 77 patients with CKD (mild group, estimated glomerular filtration rate (eGFR) ≥60 mL/min/1.73 m2) and 30 healthy controls (HCs) were enrolled. Diffusion-weighted imaging was performed by using single-shot echo planar sequence with 13 b values (0, 20, 50, 80, 100, 150, 200, 500, 800, 1000, 1500, 2000, and 2500 s/mm2). Diffusion models including mono-exponential (Mono), intravoxel incoherent motion (IVIM), stretched-exponential (SEM), and kurtosis (DKI) were calculated, and their histogram features were analysed. All diffusion models for predicting early renal impairment in CKD were established using logistic regression analysis, and diagnostic efficiency was compared among the models. RESULTS All diffusion models had high differential diagnosis efficiency between the mild group and HCs. The areas under the curve (AUCs) of Mono, IVIM, SEM, DKI, and the combined diffusion model for predicting early renal impairment in CKD were 0.829, 0.809, 0.760, 0.825, and 0.861, respectively. There were no significant differences in AUCs except SEM and combined model, SEM, and DKI model. There were significant correlations between eGFR/serum creatinine and some of histogram features. CONCLUSIONS Histogram analysis based on multiple diffusion metrics was practicable for the non-invasive assessment of early renal impairment in CKD. ADVANCES IN KNOWLEDGE Advanced diffusion models provided microstructural information. Histogram analysis further reflected histological characteristics and heterogeneity. Histogram analysis based on multiple diffusion models could provide an accurate and non-invasive method to evaluate the early renal damage of CKD.
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Affiliation(s)
- Guimian Zhong
- The First Affiliated Hospital of Jinan University, Guangzhou 510632, China
- Department of Radiology, Guangzhou Panyu Central Hospital, Guangzhou 511400, China
| | - Luyan Chen
- Department of Radiology, Guangzhou Panyu Central Hospital, Guangzhou 511400, China
| | | | - Zhiming Xiang
- Department of Radiology, Guangzhou Panyu Central Hospital, Guangzhou 511400, China
- Jinan University, Guangzhou 510632, China
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Hu X, Zhang H, Chen Z. Effects of four polyphenols on mouse wound healing and the gene expression profile of resveratrol action. Histol Histopathol 2024; 39:105-116. [PMID: 37052270 DOI: 10.14670/hh-18-616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
Studies have demonstrated the potent effects of polyphenols on cutaneous wound healing. However, the molecular mechanisms underlying polyphenol activity are incompletely understood. Herein, mice were experimentally wounded, intragastrically treated with four polyphenols, resveratrol, tea polyphenols, genistein, and quercetin; and monitored for 14 days. Resveratrol was the most effective compound, promoting wound healing starting at day 7 after wounding, by enhancing cell proliferation and reducing apoptosis and subsequently promoting epidermal and dermal repair, collagen synthesis and scar maturation. RNA sequencing was performed in control and resveratrol-treated tissues on day 7 after wounding. Resveratrol treatment upregulated 362 genes and downregulated 334 genes. Gene Ontology enrichment analysis showed that differentially expressed genes (DEGs) were associated with different biological processes (keratinization, immunity, and inflammation), molecular functions (cytokine and chemokine activities), and cellular components (extracellular region and matrix). Kyoto Encyclopedia of Genes and Genomes pathway analysis indicated that DEGs were predominantly enriched in inflammatory and immunological pathways, including cytokine-cytokine receptor interaction, chemokine signaling, and tumor necrosis factor (TNF) signaling. These results show that resveratrol accelerates wound healing by promoting keratinization and dermal repair and attenuating immune and inflammatory responses.
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Affiliation(s)
- Xiao Hu
- Department of Plastic and Burn Surgery, Guangzhou Red Cross Hospital, Jinan University Medical College, Guangzhou, PR China.
| | - Hanbin Zhang
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, PR China
| | - Zhenguo Chen
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, PR China.
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Yang L, Chen Y, Fang W. Piezosurgery versus conventional osteotomy: a randomized clinical trial on pain and anxiety in children with unerupted mandibular third molars. Clin Oral Investig 2023; 28:9. [PMID: 38127199 DOI: 10.1007/s00784-023-05422-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 11/21/2023] [Indexed: 12/23/2023]
Abstract
OBJECTIVE Dental anxiety for unerupted mandibular third molars extraction in children under local anesthesia is a tricky problem. The purpose of this study was to compare psychological and physiologic findings of extractions of unerupted mandibular third molars in children by piezosurgery and conventional osteotomy. MATERIALS AND METHODS This prospective, single-center, double-blind study included children who required extraction of mandibular third molars under local anesthesia. All subjects were randomly divided into two groups: piezosurgery and conventional osteotomy (control). The primary outcome variables were dental anxiety assessed by the Modified Child Fear Survey Schedule Dental Subscale (CFSS-DS) and postoperative pain qualified by the visual analog scale (VAS). Secondary outcome variables included blood pressure, heart rate, saturation, and operation duration. The data were analyzed by t-test and chi-square test (P ≤ 0.05). RESULTS All 40 study patients (37.5% males and 62.5% females with an average age of 14.43 ± 1.32 years) completed the entire trial. There were no statistically significant differences observed between the two groups in terms of gender allocation, age, side of extraction, and Winter's Classification (P > 0.05). The operation duration of the piezosurgery group was significantly longer than the conventional osteotomy group (P < 0.01). The VAS scores showed that pain levels of children in the piezosurgery group were significantly less than the conventional osteotomy group on the first and third days postoperatively (P < 0.05 and P < 0.01, respectively). The CFSS-DS score in the piezosurgery group significantly decreased compared to the conventional osteotomy group (P < 0.05). Compared with the conventional osteotomy group, a significant decrease in heart rate, and lower systolic and diastolic blood pressures were observed after extraction in the piezosurgery group (P < 0.05 and P < 0.01, respectively). CONCLUSION Compared with conventional osteotomy, piezosurgery can effectively reduce postoperative pain and have some effect in relieving dental anxiety for the extraction of unerupted mandibular third molars in children. CLINICAL RELEVANCE Piezosurgery may be a viable technique for the extraction of unerupted mandibular third molars in children under local anesthesia.
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Affiliation(s)
- Liuqing Yang
- Department of Stomatology, Guangzhou Women and Children's Medical Center, Guaznghou, 510623, People's Republic of China
| | - Yanbin Chen
- Departments of Stomatology, The Eastern Hospital of the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510700, Guangdong, China
| | - Wei Fang
- Stomatological Hospital, Southern Medical University, Guangzhou, 510280, People's Republic of China.
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Zhang X, Zhou Y, Sun J, Yang R, Chen J, Cheng X, Li Z, Chen X, Yang C, Zhu X, Cao L. A cohort study of adolescents with depression in China: tracking multidimensional outcomes and early biomarkers for intervention. Gen Psychiatr 2022; 35:e100782. [PMID: 36118419 PMCID: PMC9422794 DOI: 10.1136/gpsych-2022-100782] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 07/27/2022] [Indexed: 11/22/2022] Open
Abstract
Background Depression in adolescents is recognised as a global public health concern, but little is known about the trajectory of its clinical symptoms and pathogenesis. Understanding the nature of adolescents with depression and identifying early biomarkers can facilitate personalised intervention and reduce disease burden. Aims To track multidimensional outcomes of adolescents with depression and develop objective biomarkers for diagnosis, as well as response to treatment, prognosis and guidance for early identification and intervention. Methods This is a multidimensional cohort study on the Symptomatic trajectory and Biomarkers of Early Adolescent Depression (sBEAD). We planned to recruit more than 1000 adolescents with depression and 300 healthy controls within 5 years. Multidimensional clinical presentations and objective indicators are collected at baseline, weeks 4, 8, 12 and 24, and years 1, 2, 3, 4 and 5. Conclusions To the best of our knowledge, this is the first longitudinal cohort study that examines multidimensional clinical manifestations and multilevel objective markers in Chinese adolescents with depression. This study aims at providing early individualised interventions for young, depressed patients to reduce the burden of disease. Trial registration number Chinese Clinical Trial Registry ID ChiCTR2100049066.
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Affiliation(s)
- Xiaofei Zhang
- Department of Child and Adolescent Psychiatry, Early Detection and Intervention Center for Adolescent Mood Disorders, Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yanling Zhou
- Department of Child and Adolescent Psychiatry, Early Detection and Intervention Center for Adolescent Mood Disorders, Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jiaqi Sun
- Department of Child and Adolescent Psychiatry, Early Detection and Intervention Center for Adolescent Mood Disorders, Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Ruilan Yang
- Department of Child and Adolescent Psychiatry, Early Detection and Intervention Center for Adolescent Mood Disorders, Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Jianshan Chen
- Department of Child and Adolescent Psychiatry, Early Detection and Intervention Center for Adolescent Mood Disorders, Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xiaofang Cheng
- Department of Radiology, Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Zezhi Li
- Deparment of Adult Psychiatry, Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xinlei Chen
- Department of Child and Adolescent Psychiatry, Early Detection and Intervention Center for Adolescent Mood Disorders, Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Chanjuan Yang
- Department of Child and Adolescent Psychiatry, Early Detection and Intervention Center for Adolescent Mood Disorders, Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xinhong Zhu
- Brain Disease and Health Reaserch Center, Pazhou Laboratory, Guangzhou, Guangdong, China
| | - Liping Cao
- Department of Child and Adolescent Psychiatry, Early Detection and Intervention Center for Adolescent Mood Disorders, Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
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Feng J, Lu M, Li W, Li J, Meng P, Li Z, Gao X, Zhang Y. PPARγ alleviates peritoneal fibrosis progression along with promoting GLUT1 expression and suppressing peritoneal mesothelial cell proliferation. Mol Cell Biochem 2022; 477:1959-1971. [PMID: 35380292 PMCID: PMC9206601 DOI: 10.1007/s11010-022-04419-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 03/17/2022] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Peritoneal fibrosis (PF) is commonly induced by bioincompatible dialysate exposure during peritoneal dialysis, but the underlying mechanisms remain elusive. This study aimed to investigate the roles of peroxisome proliferator-activated receptor gamma (PPARγ) in PF pathogenesis. METHODS Rat and cellular PF models were established by high glucose dialysate and lipopolysaccharide treatments. Serum creatinine, urea nitrogen, and glucose contents were detected by ELISA. Histological evaluation was done through H&E and Masson staining. GLUT1, PPARγ, and other protein expression were measured by qRT-PCR, western blotting, and IHC. PPARγ and GLUT1 subcellular distribution were detected using confocal microscopy. Cell proliferation was assessed by MTT and Edu staining. RESULTS Serum creatinine, urea nitrogen and glucose, and PPARγ and GLUT1 expression in rat PF model were reduced by PPARγ agonists Rosiglitazone or 15d-PGJ2 and elevated by antagonist GW9662. Rosiglitazone or 15d-PGJ2 repressed and GW9662 aggravated peritoneal fibrosis in rat PF model. PPARγ and GLUT1 were mainly localized in nucleus and cytosols of peritoneal mesothelial cells, respectively, which were reduced in cellular PF model, enhanced by Rosiglitazone or 15d-PGJ2, and repressed by GW9662. TGF-β and a-SMA expression was elevated in cellular PF model, which was inhibited by Rosiglitazone or 15d-PGJ2 and promoted by GW9662. PPARγ silencing reduced GLUT1, elevated a-SMA and TGF-b expression, and promoted peritoneal mesothelial cell proliferation, which were oppositely changed by PPARγ overexpression. CONCLUSION PPARγ inhibited high glucose-induced peritoneal fibrosis progression through elevating GLUT1 expression and repressing peritoneal mesothelial cell proliferation.
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Affiliation(s)
- Junxia Feng
- Department of Nephrology, Affiliated Huadu Hospital, Southern Medical University (People's Hospital of Huadu District), 48 Xinhua Road, 510800, Guangzhou, China
- The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Meizhi Lu
- Department of Nephrology, Affiliated Huadu Hospital, Southern Medical University (People's Hospital of Huadu District), 48 Xinhua Road, 510800, Guangzhou, China
- The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Wenhao Li
- Department of Nephrology, Affiliated Huadu Hospital, Southern Medical University (People's Hospital of Huadu District), 48 Xinhua Road, 510800, Guangzhou, China
- The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Jingchun Li
- Department of Nephrology, Affiliated Huadu Hospital, Southern Medical University (People's Hospital of Huadu District), 48 Xinhua Road, 510800, Guangzhou, China
- The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Ping Meng
- Department of Nephrology, Affiliated Huadu Hospital, Southern Medical University (People's Hospital of Huadu District), 48 Xinhua Road, 510800, Guangzhou, China
- The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Zukai Li
- The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Xuejuan Gao
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes and MOE Key Laboratory of Tumor Molecular Biology, Institute of Life and Health Engineering, Jinan University, Guangzhou, China.
| | - Yunfang Zhang
- Department of Nephrology, Affiliated Huadu Hospital, Southern Medical University (People's Hospital of Huadu District), 48 Xinhua Road, 510800, Guangzhou, China.
- The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China.
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