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Hahnemann L, Krämer A, Fink C, Jungk C, Thomas M, Christopoulos P, Lischalk J, Meis J, Hörner-Rieber J, Eichkorn T, Deng M, Lang K, Paul A, Meixner E, Weykamp F, Debus J, König L. Fractionated stereotactic radiotherapy of intracranial postoperative cavities after resection of brain metastases - Clinical outcome and prognostic factors. Clin Transl Radiat Oncol 2024; 46:100782. [PMID: 38694237 PMCID: PMC11061678 DOI: 10.1016/j.ctro.2024.100782] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 04/17/2024] [Accepted: 04/20/2024] [Indexed: 05/04/2024] Open
Abstract
Background and Purpose After surgical resection of brain metastases (BM), radiotherapy (RT) is indicated. Postoperative stereotactic radiosurgery (SRS) reduces the risk of local progression and neurocognitive decline compared to whole brain radiotherapy (WBRT). Aside from the optimal dose and fractionation, little is known about the combination of systemic therapy and postoperative fractionated stereotactic radiotherapy (fSRT), especially regarding tumour control and toxicity. Methods In this study, 105 patients receiving postoperative fSRT with 35 Gy in 7 fractions performed with Cyberknife were retrospectively reviewed. Overall survival (OS), local control (LC) and total intracranial brain control (TIBC) were analysed via Kaplan-Meier method. Cox proportional hazards models were used to identify prognostic factors. Results Median follow-up was 20.8 months. One-year TIBC was 61.6% and one-year LC was 98.6%. Median OS was 28.7 (95%-CI: 16.9-40.5) months. In total, local progression (median time not reached) occurred in 2.0% and in 20.4% radiation-induced contrast enhancements (RICE) of the cavity (after median of 14.3 months) were diagnosed. Absence of extracranial metastases was identified as an independent prognostic factor for superior OS (p = <0.001) in multivariate analyses, while a higher Karnofsky performance score (KPS) was predictive for longer OS in univariate analysis (p = 0.041). Leptomeningeal disease (LMD) developed in 13% of patients. Conclusion FSRT after surgical resection of BM is an effective and safe treatment approach with excellent local control and acceptable toxicity. Further prospective randomized trials are needed to establish standardized therapeutic guidelines.
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Affiliation(s)
- L. Hahnemann
- Department of Radiation Oncology, University Hospital of Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - A. Krämer
- Department of Radiation Oncology, University Hospital of Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
| | - C. Fink
- Department of Radiation Oncology, University Hospital of Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
- National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - C. Jungk
- Department of Neurosurgery, University Hospital of Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - M. Thomas
- Department of Thoracic Oncology, Thoraxklinik and National Center for Tumor Diseases at Heidelberg University Hospital, Heidelberg, Germany
- Translational Lung Research Center Heidelberg (TLRC-H), Member of the German Center for Lung Research (DZL), Germany
| | - P. Christopoulos
- Department of Thoracic Oncology, Thoraxklinik and National Center for Tumor Diseases at Heidelberg University Hospital, Heidelberg, Germany
- Translational Lung Research Center Heidelberg (TLRC-H), Member of the German Center for Lung Research (DZL), Germany
| | - J.W. Lischalk
- Department of Radiation Oncology, Perlmutter Cancer Center at New York University Langone Health at Long Island, New York, NY, USA
| | - J. Meis
- Institute of Medical Biometry, University of Heidelberg, Im Neuenheimer Feld 130, 69120 Heidelberg, Germany
| | - J. Hörner-Rieber
- Department of Radiation Oncology, University Hospital of Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
- National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - T. Eichkorn
- Department of Radiation Oncology, University Hospital of Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
- National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - M. Deng
- Department of Radiation Oncology, University Hospital of Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
- National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - K. Lang
- Department of Radiation Oncology, University Hospital of Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
- National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - A. Paul
- Department of Radiation Oncology, University Hospital of Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
- National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - E. Meixner
- Department of Radiation Oncology, University Hospital of Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
- National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - F. Weykamp
- Department of Radiation Oncology, University Hospital of Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
- National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
| | - J. Debus
- Department of Radiation Oncology, University Hospital of Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
- National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
- Heavy Ion Therapy Center (HIT), Heidelberg University Hospital, Im Neuenheimer Feld 450, 69120 Heidelberg, Germany
- Clinical Cooperation Unit Radiation Oncology (E050), German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - L. König
- Department of Radiation Oncology, University Hospital of Heidelberg, Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
- National Center for Radiation Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Im Neuenheimer Feld 400, 69120 Heidelberg, Germany
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Wang Q, Xu F, Deng M, Ren M, Wang T, Wu D. [Antioxidant activity of Euryale ferox seed shell extract and its therapeutic effects on oral ulcer in rats]. Nan Fang Yi Ke Da Xue Xue Bao 2024; 44:787-794. [PMID: 38708514 DOI: 10.12122/j.issn.1673-4254.2024.04.22] [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] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
OBJECTIVE To investigate the therapeutic effect of Euryale ferox seed shell extract on oral ulcer in rats and its underlying mechanism. METHODS The contents of polyphenols and flavonoids in Euryale ferox seed shells were determined by Folin-phenol assay and aluminum nitrate colorimetry, respectively. DPPH·, ABTS+·, ·OH and·O2- scavenging experiments were performed to evaluate the antioxidant activities of Euryale ferox seed shell extract in vitro. In a rat model of oral ulcer induced by burning with glacial acetic acid, the therapeutic effect of Euryale ferox seed shell extract was assessed by detecting changes in serum levels of oxidative factors by enzyme-linked immunosorbent assay (ELISA) and observing pathological changes of the ulcerous mucosa using HE staining; the therapeutic mechanism of the extract was explored by detecting the expression levels of Keap1, Nrf2, Nes-Nrf2 and HO-1 proteins in ulcerous mucosa using Western blotting. RESULTS The ethyl acetate extract of Euryale ferox seed shells contained 306.74±1.04 mg/g polyphenols and 23.43±0.61 mg/g flavonoids and had IC50 values for scavenging DPPH· and ABTS+· free radicals of 3.42 ± 0.97 μg/mL and 3.32 ± 0.90 μg/mL, respectively. In the rat models, the ethyl acetate extract significantly ameliorated oral mucosal ulcer, increased serum CAT level, and decreased serum MDA level. The protein expression levels of Nes-Nrf2 and HO-1 were increased and Keap1 protein expression was lowered significantly in the ulcerous mucosa of the rats after treatment with the extract (P<0.05 or 0.01). CONCLUSION The therapeutic effect of Euryale ferox seed shell extract on oral ulcers in rats is mediated probably by activation of the Keap1/Nrf2/HO-1 signaling pathway.
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Affiliation(s)
- Q Wang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - F Xu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
- Anhui Provincial Key Laboratory of Chinese Medicine Research & Development, Hefei 230012, China
- Anhui Provincial Key Laboratory of New Manufacturing Technology for Traditional Chinese Medicine Decoction Pieces, Hefei 230012, China
| | - M Deng
- School of Integrated Traditional and Western Medicine, Anhui University of Chinese Medicine, Hefei 230012, China
| | - M Ren
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - T Wang
- School of Integrated Traditional and Western Medicine, Anhui University of Chinese Medicine, Hefei 230012, China
| | - D Wu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
- Anhui Provincial Key Laboratory of Chinese Medicine Research & Development, Hefei 230012, China
- Anhui Provincial Key Laboratory of New Manufacturing Technology for Traditional Chinese Medicine Decoction Pieces, Hefei 230012, China
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Li J, Jiang W, Cai Y, Ning Z, Zhou Y, Wang C, Chung SK, Huang Y, Sun J, Deng M, Zhou L, Cheng X. Astrocytic endothelin-1 overexpression impairs learning and memory ability in ischemic stroke via altered hippocampal neurogenesis and lipid metabolism. Neural Regen Res 2024; 19:650-656. [PMID: 37721297 PMCID: PMC10581554 DOI: 10.4103/1673-5374.380906] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 04/03/2023] [Accepted: 05/31/2023] [Indexed: 09/19/2023] Open
Abstract
Vascular etiology is the second most prevalent cause of cognitive impairment globally. Endothelin-1, which is produced and secreted by endothelial cells and astrocytes, is implicated in the pathogenesis of stroke. However, the way in which changes in astrocytic endothelin-1 lead to poststroke cognitive deficits following transient middle cerebral artery occlusion is not well understood. Here, using mice in which astrocytic endothelin-1 was overexpressed, we found that the selective overexpression of endothelin-1 by astrocytic cells led to ischemic stroke-related dementia (1 hour of ischemia; 7 days, 28 days, or 3 months of reperfusion). We also revealed that astrocytic endothelin-1 overexpression contributed to the role of neural stem cell proliferation but impaired neurogenesis in the dentate gyrus of the hippocampus after middle cerebral artery occlusion. Comprehensive proteome profiles and western blot analysis confirmed that levels of glial fibrillary acidic protein and peroxiredoxin 6, which were differentially expressed in the brain, were significantly increased in mice with astrocytic endothelin-1 overexpression in comparison with wild-type mice 28 days after ischemic stroke. Moreover, the levels of the enriched differentially expressed proteins were closely related to lipid metabolism, as indicated by Kyoto Encyclopedia of Genes and Genomes pathway analysis. Liquid chromatography-mass spectrometry nontargeted metabolite profiling of brain tissues showed that astrocytic endothelin-1 overexpression altered lipid metabolism products such as glycerol phosphatidylcholine, sphingomyelin, and phosphatidic acid. Overall, this study demonstrates that astrocytic endothelin-1 overexpression can impair hippocampal neurogenesis and that it is correlated with lipid metabolism in poststroke cognitive dysfunction.
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Affiliation(s)
- Jie Li
- Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong Province, China
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Research on Emergency in TCM, Guangzhou, Guangdong Province, China
| | - Wen Jiang
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Yuefang Cai
- Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong Province, China
| | - Zhenqiu Ning
- Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong Province, China
| | - Yingying Zhou
- Department of Anatomy, Sun Yat-Sen School of Medicine, Sun Yat-Sen University, Shenzhen, Guangdong Province, China
| | - Chengyi Wang
- Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong Province, China
| | - Sookja Ki Chung
- Faculty of Medicine, Macau University of Science and Technology, Macao Special Administration Region, China
| | - Yan Huang
- Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong Province, China
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Research on Emergency in TCM, Guangzhou, Guangdong Province, China
| | - Jingbo Sun
- Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong Province, China
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Research on Emergency in TCM, Guangzhou, Guangdong Province, China
| | - Minzhen Deng
- Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong Province, China
| | - Lihua Zhou
- Department of Anatomy, Sun Yat-Sen School of Medicine, Sun Yat-Sen University, Shenzhen, Guangdong Province, China
| | - Xiao Cheng
- Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong Province, China
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, China
- Guangdong Provincial Key Laboratory of Research on Emergency in TCM, Guangzhou, Guangdong Province, China
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Zhong X, Feng W, Liu L, Liu Q, Xu Q, Liu M, Liu X, Xu S, Deng M, Lin C. Periplogenin inhibits pathologic synovial proliferation and infiltration in rheumatoid arthritis by regulating the JAK2/3-STAT3 pathway. Int Immunopharmacol 2024; 128:111487. [PMID: 38183911 DOI: 10.1016/j.intimp.2024.111487] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 12/31/2023] [Accepted: 01/02/2024] [Indexed: 01/08/2024]
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease that affects joints, causing inflammation, synovitis, and erosion of cartilage and bone. Periplogenin is an active ingredient in the anti-rheumatic and anti-inflammatory herb, cortex periplocae. We conducted a study using a CIA model and an in vitro model of fibroblast-like synoviocytes (FLS) induced by Tumor Necrosis Factor-alpha (TNF-α) stimulation. We evaluated cell activity, proliferation, and migration using the CCK8 test, EDU kit, and transwell assays, as well as network pharmacokinetic analysis of periplogenin targets and RA-related effects. Furthermore, we measured inflammatory factors and matrix metalloproteinases (MMPs) expression using ELISA and qRT-PCR assays. We also evaluated joint destruction using HE and Safranin O-Fast Green Staining and examined the changes in the JAK2/3-STAT3 pathway using western blot. The results indicated that periplogenin can effectively inhibit the secretion of inflammatory factors, suppress the JAK2/3-STAT3 pathway, and impede the proliferation and migration of RA FLS. Thus, periplogenin alleviated the Synovial inflammatory infiltration of RA.
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Affiliation(s)
- Xiaoqin Zhong
- The First Clinical Medicine College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510405, China; Department of Rheumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510405, China
| | - Wei Feng
- The First Clinical Medicine College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510405, China; Department of Rheumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510405, China
| | - Lianjie Liu
- The First Clinical Medicine College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510405, China; Department of Rheumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510405, China
| | - Qingping Liu
- The First Clinical Medicine College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510405, China; Department of Rheumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510405, China
| | - Qiang Xu
- The First Clinical Medicine College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510405, China; Department of Rheumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510405, China
| | - Minying Liu
- The First Clinical Medicine College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510405, China; Department of Rheumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510405, China
| | - Xiaobao Liu
- The First Clinical Medicine College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510405, China; Department of Rheumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510405, China
| | - Shudi Xu
- The First Clinical Medicine College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510405, China; Department of Rheumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510405, China
| | - Minzhen Deng
- State Key Laboratory of Traditional Chinese Medicine Syndrome/Department of Neurology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, China; Guangdong Provincial Key Laboratory of Research on Emergency in TCM, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510120, China.
| | - Changsong Lin
- The First Clinical Medicine College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510405, China; Department of Rheumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510405, China.
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Ning Z, Zhong X, Wu Y, Wang Y, Hu D, Wang K, Deng M. β-asarone improves cognitive impairment and alleviates autophagy in mice with vascular dementia via the cAMP/PKA/CREB pathway. Phytomedicine 2024; 123:155215. [PMID: 38039902 DOI: 10.1016/j.phymed.2023.155215] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 10/01/2023] [Accepted: 11/11/2023] [Indexed: 12/03/2023]
Abstract
BACKGROUND Vascular dementia (VD) is the second most common type of dementia after Alzheimer's disease. β-asarone, a major component of Acorus tatarinowii Schott, is important in neurodegenerative and neurovascular diseases. Studies have confirmed that β-asarone can mitigate autophagy and reduce damage in hypoxic cells. We also reported that β-asarone improves learning and memory. This study further clarifies whether β-asarone attenuates cerebral ischaemic injury by acting through the cAMP/PKA/CREB pathway in VD model mice. METHODS Here, genes and potential pathways that may be targeted by β-asarone for the treatment of transient cerebral ischaemia (TCI) and cognitive impairment (CI) were obtained using network pharmacology. The two-vessel occlusion method was used to establish the VD model. The Morris water maze test was used to evaluate the effects on memory. Then, the protein levels of mitofusin-2 (Mfn2), brain-derived neurotrophic factor (BDNF), optic atrophy 1 (OPA1), cyclic adenosine monophosphate (cAMP), myelin basic protein (MBP), matrix metalloproteinase-9 (MMP9) and neuron specific enolase (NSE) were determined by ELISA. The levels of superoxide dismutase (SOD) and malonaldehyde (MDA) were measured using commercial kits. Then, qRT-PCR was employed to investigate the expression of the candidate genes screened from the protein-protein interaction (PPI) network. Furthermore, the expression of the autophagy-related proteins Beclin-1, (microtubule-associated protein light chain 3) LC3, p62, postsynaptic density protein 95 (PSD95), protein kinase A (PKA), pPKA, cyclic-AMP response binding protein (CREB), and pCREB was determined by western blotting. The expression of autophagy-related proteins, PSD95 and translocase of outer mitochondrial membrane 20 (TOM20) was determined by immunofluorescence analyses. RESULTS The network pharmacological analysis showed 234 targets related to β-asarone, 1,118 genes related to TCI and 2,039 genes associated with CI. Our results confirm that β-asarone treatment not only alleviated brain damage in the VD model by improving mitochondrial and synaptic function, reducing neuronal injury and upregulating the expression of antioxidants but also effectively improved the cognitive behaviour of VD model mice. Moreover, β-asarone downregulated VD-induced RELA and CCND1 mRNA expression. In addition, we validated that β-asarone increased the phosphorylation of PKA and CREB and upregulated cAMP protein expression. The results showed that the cAMP/PKA/CREB signalling pathway was upregulated. Moreover, β-asarone administration decreased the protein expression levels of Beclin-1 and LC3 and increased the expression levels of p62 in VD model mice. CONCLUSIONS β-asarone inhibits Beclin-1-dependent autophagy and upregulates the cAMP/PKA/CREB signalling pathway to attenuate mitochondrial and synaptic damage from cerebral ischaemia and improve learning and cognitive abilities in VD model mice.
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Affiliation(s)
- Zhenqiu Ning
- State Key Laboratory of Traditional Chinese Medicine Syndrome/ Department of Neurology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510006, China; The Second Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou 510120, China
| | - Xiaoqin Zhong
- The First Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Yanan Wu
- Department of Anaesthesiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Yu Wang
- The Second Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou 510120, China
| | - Dafeng Hu
- The Second Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou 510120, China
| | - Kai Wang
- The Second Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou 510120, China
| | - Minzhen Deng
- State Key Laboratory of Traditional Chinese Medicine Syndrome/ Department of Neurology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510006, China; The Second Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou 510120, China; Guangdong Provincial Key Laboratory of Research on Emergency in TCM, Guangzhou 510120, PR China.
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Wang J, Bi Q, Gong W, Zhang H, Deng M, Chen L, Wang B. Histogram analysis of diffusion kurtosis imaging of deep brain nuclei in Parkinson's disease with different motor subtypes. Clin Radiol 2023; 78:e966-e974. [PMID: 37838544 DOI: 10.1016/j.crad.2023.09.008] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 09/12/2023] [Accepted: 09/13/2023] [Indexed: 10/16/2023]
Abstract
AIM To evaluate the diagnostic and differential efficacy of diffusion kurtosis imaging (DKI) histogram analysis for different motor subtypes of Parkinson's disease (PD). MATERIALS AND METHODS Seventy PD patients including 40 with postural instability and gait disorder (PIGD) and 30 with tremor-dominant (TD) and 36 healthy controls (HC) were enrolled prospectively and underwent MRI examinations. The regions of interest (ROI) in the deep brain nuclei were delineated and features were extracted on the map of mean kurtosis (MK), axial kurtosis (Ka), and radial kurtosis (Kr), respectively. The differences in histogram features between PD patients and HC and between patients with PIGD and TD were compared. The areas under the curve (AUCs) were calculated to evaluate the diagnostic efficacy of all histogram features. The correlations between histogram features and clinical indicators were evaluated. RESULTS Some DKI histogram features were significantly different between PD patients and HC, and also different between patients with PIGD and TD (all p<0.05). MK of the substantia nigra pars reticulate (SNprkurtosis), Ka of the substantia nigra pars compacta (SNpc) 50 percentile (SNpcP50), and Kr of SNpc 90th percentile showed the highest AUC for distinguishing patients with PIGD from HC. MK-SNpc 10th percentile, Ka-SNpc 25th percentile, and Kr of the head of the caudate nucleus (CN) 90th percentile had the highest AUC for distinguishing patients with TD from HC. MK of the putamen 10th percentile combined with Ka of the bilateral red nucleus RNkurtosis yielded the highest diagnostic performance with an AUC of 0.762 for distinguishing patients with PIGD from TD. Certain DKI histogram features were correlated with Hoehn-Yahr (H&Y) stage, Mini Mental State Examination (MMSE) score, tremor score, and PIGD score (all p<0.05). CONCLUSION DKI histogram analysis was useful to diagnose and discriminate different motor subtypes of PD. Certain DKI histogram features correlated with clinical indicators.
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Affiliation(s)
- J Wang
- Department of Medical Imaging, Southern Central Hospital of Yunnan Province (The First People's Hospital of Honghe State), Mengzi, Yunan, China
| | - Q Bi
- Department of MRI, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - W Gong
- Department of Anesthesiology, Southern Central Hospital of Yunnan Province (The First People's Hospital of Honghe State), Mengzi, Yunan, China
| | - H Zhang
- Department of MRI, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - M Deng
- Department of Medical Imaging, Southern Central Hospital of Yunnan Province (The First People's Hospital of Honghe State), Mengzi, Yunan, China
| | - L Chen
- Department of MRI, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - B Wang
- Department of MRI, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China.
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Pirlamarla MK, Deng M, Yankey HN, Dougherty T, Handorf E, Kumar SS. The Effect of Stereotactic Body Radiotherapy (SBRT) Dose-Fraction (fx) Schema on Non-Small Cell Lung Cancer (NSCLC). Int J Radiat Oncol Biol Phys 2023; 117:e49. [PMID: 37785547 DOI: 10.1016/j.ijrobp.2023.06.756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Stereotactic body radiotherapy (SBRT) dose-fraction (fx) schema for non-small cell lung cancer (NSCLC) varies at different centers and commonly involves 3 to 5 fx. Additionally, the frequency of treatment per week, or treatment schedules (TS), can also differ. We sought to evaluate and compare the effect of different dose-fx schemas on overall survival (OS). MATERIALS/METHODS We retrieved data from the National Cancer Database. Patient eligibility included early-stage NSCLC with cT1-2 N0M0 disease treated with SBRT using 3-5f x regimens. Demographics and clinical characteristics were identified. Biologically effective dose (BED) and total dose (TD) were calculated. TD included following: 45-60 Gy for 3 fx, 48-60 Gy for 4 fx, and 50-60 Gy for 5 fx. TS was classified as one of the following: daily, every other day, twice per week, or prolonged (less frequently than twice weekly). Non-prolonged TS was defined as daily, every other day, and twice per week. OS was calculated from the date of end of RT to the date of death and censored at the date of last contact. Kaplan Meier method was used to estimate OS and log-rank tests were used to compare the difference between groups. TS was compared pairwise within each individual fx-group. Univariable Cox proportional models with robust standard errors to account for within institution correlations were used to investigate the association between BED, TD, TS, fx-group and OS. Within each fx-group, BED was also assessed and compared. RESULTS A total of 3244 patients were identified, with median age 73. 48% were males and 52% females. 601 (19%) patients received 3 fx, 884 (27%) received 4 fx, and 1759 (54%) received 5 fx treatments. For the overall cohort, median and mean BEDs were 112 and 119, respectively. TS did not show a difference in OS among each individual fx group. Overall, prolonged vs non-prolonged schedules also did not show a difference in OS (p = 0.64). OS was superior in the 3 fx group compared to 4 and 5 fx groups, with median survival times of 61.5 vs 53.7 vs 52.6 months, respectively (p = 0.046). Overall, an increase in BED reduced risk of death (HR = 0.97 per 10-units, CI: 0.94-0.99, p = 0.04). When stratified by fx, each 10 unit rise in BED for those treated with 5 fx reduced the risk of death by 8% (HR = 0.92, CI: 0.87-0.97, p<0.01). However, increasing BED was not associated with change in OS for 3 fx (HR = 1.00, CI: 0.93-1.08, p = 0.93) and 4 fx (HR = 1.08, p = 0.08) regimens. Patients who received BED greater than the median (BED>112) had improved OS compared to those receiving BED£112 (HR = 0.86, p = 0.047). When evaluating the 5 fx-group individually, BED >100 (median of 5fx group) had superior OS compared to £100 (HR = 0.80, p = 0.02). CONCLUSION Three-fraction regimens have superior OS compared to 4 and 5 fx regimens. Higher BED improves OS in 5 fx regimens. Treatment schedule variations among individual fx-groups does not impact OS.
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Affiliation(s)
| | - M Deng
- Department of Biostatistics and Bioinformatics, Fox Chase Cancer Center, Philadelphia, PA
| | - H N Yankey
- Fox Chase Cancer Center, Philadelphia, PA
| | | | - E Handorf
- Department of Biostatistics and Bioinformatics, Fox Chase Cancer Center, Philadelphia, PA
| | - S S Kumar
- University of Kentucky, Lexington, KY
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Shulman RM, Kiss Z, Handorf E, Deng M, Meyer JE. The Impact of Mutations of BRCA1/2 Genes in Patients with Breast Cancer on Treatment Outcomes Following Radiation Therapy (RT). Int J Radiat Oncol Biol Phys 2023; 117:e208. [PMID: 37784868 DOI: 10.1016/j.ijrobp.2023.06.1093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) BRCA1/2 mutations in isolated cancer cells have been shown to enhance radiosensitivity, but it is not known if similar mutations in breast cancer (BC) patients yield improved responses to RT. We analyzed a large, national, previously unexamined dataset to determine if patients with BRCA1/2 mutations receiving RT achieve longer disease-free survival (DFS) and overall survival (OS) than patients with wild-type (WT) BRCA genes. MATERIALS/METHODS The study used the nationwide Flatiron Health electronic health record (EHR)-derived de-identified database to select patients with Stage 0-III BC. Patients with known BRCA1/2 status were eligible if treated with RT≤ 1 year from diagnosis. Demographic data for patients with mutated and WT BRCA1/2 were compared using ANOVA and Chi-square tests. DFS was calculated from the start of RT until local/ distant recurrence or death and censored after the last clinic visit. Kaplan Meier estimates and multivariable Cox-proportional models (MVA) were used to compare DFS and OS for mutated and WT BRCA1/2 patients, for clinical stage, biomarkers (ER/PR/HER2), and surgery type (lumpectomy vs mastectomy). RESULTS The study group of 1561 Stage 0-III BC patients included 1482 patients (95%) with WT BRCA and 79 patients (5%) with BRCA1/2 mutations (31 patients with a mutation of BRCA1, 46 patients with a mutation of BRCA2, and 2 patients with both mutations). Patients with BRCA1/2 mutations were younger (median: 51 vs 56, p = 0.004), diagnosed at higher clinical stage (Stage 0: 0% vs 0.2%, I: 31.6% vs 48.5%, II: 48.1% vs 34.0%, III: 20.3 vs 17.4%, p = 0.016), and more often grade 3 (60.8% vs 39.9%, p<0.001) than those with WT BRCA. Mastectomy was performed more often for patients with BRCA1/2 mutations (60.8% vs 31.5%, p<0.001). When BRCA1 and BRCA2 mutations were compared, BRCA1 patients were younger (median: 44 vs 52, p = 0.006), more often ER/PR negative (51.6% vs 13%, p<0.001), and had higher stage tumors (T1: 32.3% vs 47.8%; T2: 38.7% vs 28.3%, p = 0.032). On MVA, comparison of BRCA1/2 mutations vs WT BRCA identified no differences in DFS or OS. CONCLUSION In spite of pre-clinical data demonstrating increased radiosensitivity for BRCA1/2-mutated BC cells lines, this large, previously unexamined dataset found BRCA1/2 mutations did not predict an improved OS or DFS for patients who received RT. When compared with WT BRCA patients, patients with BRCA1/2 mutations were found to have tumors of higher grade and clinical stage and to undergo more mastectomies. In a comparison with BRCA2-mutated patients, patients with mutations of BRCA1 were younger, more often ER/PR negative, and more likely to have high-stage tumors. The survival data and the advanced stage of BRCA1/2-mutated tumors suggest that the effect of BRCA1/2 mutations on radiosensitivity in vitro may be nullified by the aggressive behavior of BRCA1/2-mutated tumors in vivo.
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Affiliation(s)
| | - Z Kiss
- Rowan University, Stratford, NJ, United States
| | - E Handorf
- Department of Biostatistics and Bioinformatics, Fox Chase Cancer Center, Philadelphia, PA
| | - M Deng
- Department of Biostatistics and Bioinformatics, Fox Chase Cancer Center, Philadelphia, PA
| | - J E Meyer
- Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, PA
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Deng M, Liu R, Deng LJ, Chen R, Cai ME, Lin GZ, Qiu JW, Song YZ. [Analysis of the serum bile acid profile to facilitate diagnosis and differential diagnosis of NA(+)-taurocholate cotransporting polypeptide deficiency]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:928-935. [PMID: 37872088 DOI: 10.3760/cma.j.cn501113-20230717-00007] [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] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Objective: This study focuses on Na(+)-taurocholate cotransporting polypeptide (NTCP) deficiency to analyze and investigate the value of the serum bile acid profile for facilitating the diagnosis and differential diagnosis. Methods: Clinical data of 66 patients with cholestatic liver diseases (CLDs) diagnosed and treated in the Department of Pediatrics of the First Affiliated Hospital of Jinan University from early April 2015 to the end of December 2021 were collected, including 32 cases of NTCP deficiency (16 adults and 16 children), 16 cases of neonatal intrahepatic cholestasis caused by citrin deficiency (NICCD), 8 cases of Alagille syndrome, and 10 cases of biliary atresia. At the same time, adult and pediatric healthy control groups (15 cases each) were established. The serum bile acid components of the study subjects were qualitatively and quantitatively analyzed by ultra-high performance liquid chromatography-tandem mass spectrometry. The data were plotted and compared using statistical SPSS 19.0 and GraphPad Prism 5.0 software. The clinical and bile acid profiles of children with NTCP deficiency and corresponding healthy controls, as well as differences between NTCP deficiency and other CLDs, were compared using statistical methods such as t-tests, Wilcoxon rank sum tests, and Kruskal-Wallis H tests. Results: Compared with the healthy control, the levels of total conjugated bile acids, total primary bile acids, total secondary bile acids, glycocholic acid, taurocholic acid, and glycochenodeoxycholic acid were increased in NTCP deficiency patients (P < 0.05). Compared with adults with NTCP deficiency, the levels of total conjugated bile acids and total primary bile acids were significantly increased in children with NTCP deficiency (P < 0.05). The serum levels of taurochenodeoxycholic acid, glycolithocholate, taurohyocholate, and tauro-α-muricholic acid were significantly increased in children with NTCP deficiency, but the bile acid levels such as glycodeoxycholic acid, glycolithocholate, and lithocholic acid were decreased (P < 0.05). The serum levels of secondary bile acids such as lithocholic acid, deoxycholic acid, and hyodeoxycholic acid were significantly higher in children with NTCP deficiency than those in other CLD groups such as NICCD, Alagille syndrome, and biliary atresia (P < 0.05). Total primary bile acids/total secondary bile acids, total conjugated bile acids/total unconjugated bile acids, taurocholic acid, serum taurodeoxycholic acid, and glycodeoxycholic acid effectively distinguished children with NTCP deficiency from other non-NTCP deficiency CLDs. Conclusion: This study confirms that serum bile acid profile analysis has an important reference value for facilitating the diagnosis and differential diagnosis of NTCP deficiency. Furthermore, it deepens the scientific understanding of the changing characteristics of serum bile acid profiles in patients with CLDs such as NTCP deficiency, provides a metabolomic basis for in-depth understanding of its pathogenesis, and provides clues and ideas for subsequent in-depth research.
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Affiliation(s)
- M Deng
- Department of Pediatrics, The First Affiliated Hospital, Jinan University, Guangzhou 510630, China
| | - R Liu
- Department of Pediatrics, The First Affiliated Hospital, Jinan University, Guangzhou 510630, China
| | - L J Deng
- Department of Pediatrics, The First Affiliated Hospital, Jinan University, Guangzhou 510630, China
| | - R Chen
- Department of Pediatrics, The First Affiliated Hospital, Jinan University, Guangzhou 510630, China
| | - M E Cai
- Department of Pediatrics, The First Affiliated Hospital, Jinan University, Guangzhou 510630, China
| | - G Z Lin
- Department of Pediatrics, The First Affiliated Hospital, Jinan University, Guangzhou 510630, China
| | - J W Qiu
- Department of Pediatrics, The First Affiliated Hospital, Jinan University, Guangzhou 510630, China
| | - Y Z Song
- Department of Pediatrics, The First Affiliated Hospital, Jinan University, Guangzhou 510630, China
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Huang L, Feng Z, Xiang J, Deng M, Zhou Z. Anti-inflammatory compounds from the rhizome of Acorus calamus var. angustatus Besser and their mechanism. Nat Prod Res 2023:1-7. [PMID: 37688474 DOI: 10.1080/14786419.2023.2255919] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 07/31/2023] [Accepted: 09/02/2023] [Indexed: 09/11/2023]
Abstract
Seven compounds, named β-sitosterol (1), daucosterol (2), (+)-pinoresinol-β-D-glucoside (3), (-)-syringaresinol 4-O-β-D-apiofuranosyl-(1→2)- β-D-glucopyranoside (4), 4-hydroxybenzoic acid (5), 2-(3', 4'-dihydroxyphenyl)-1, 3-pepper ring-5-aldehyde (6) and spinosin (7) were isolated from the rhizome of Acorus calamus var. angustatus Besser. 3, 4, 6 and 7 were isolated from this medicinal plant for the first time. Structures were elucidated by physicochemical properties and extensive spectroscopic analysis, as well as by comparison with literature data. The anti-inflammatory activity and related mechanisms of the seven compounds showed that compounds 1-7 all increased the levels of GSH-PX and SOD and decreased the levels of MDA, TNF-α, IL-1β and IL-6. Compound 4 showed the best effect of anti-inflammatory and Beclin-1 inhibition. These results suggest that compound 4 has stronger anti-inflammatory effect and provide preliminary evidence that the mechanism of action of compound 4 in attenuating LPS-induced inflammatory damage may be related to the inhibition of Beclin-1-dependent autophagy.
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Affiliation(s)
- Liping Huang
- School of Chemistry and Chemical Engineering, Western Guangdong Characteristic Biomedical Engineering Technology Research Center, Lingnan Normal University, Zhanjiang, China
- Mangrove Institute, Lingnan Normal University, Zhanjiang, China
| | - Zhenying Feng
- The Second Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Jie Xiang
- School of Chemistry and Chemical Engineering, Western Guangdong Characteristic Biomedical Engineering Technology Research Center, Lingnan Normal University, Zhanjiang, China
| | - Minzhen Deng
- Department of Neurology, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zhongliu Zhou
- School of Chemistry and Chemical Engineering, Western Guangdong Characteristic Biomedical Engineering Technology Research Center, Lingnan Normal University, Zhanjiang, China
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Kosaraju R, Vandenbogaart E, Core E, Creaser J, Livingston N, Moore M, Kamath M, Deng M. Association of SIPAT Score with Long-Term Psychosocial and Clinical Outcomes in Orthotopic Heart Transplant Recipients. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Nattiv J, Pandya K, Fong M, Vucicevic D, Hsu J, Lee R, Wolfson A, Deng M, Vaidya A, DePasquale E, Kamath M. A Multicenter Experience in the Use of Allomap and Allosure Surveillance Strategies in Multiorgan Heart-Kidney and Heart-Liver Transplantation. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Dan WC, Guo XY, Zhang GZ, Wang SL, Deng M, Liu JL. Integrative analyses of radiation-related genes and biomarkers associated with breast cancer. Eur Rev Med Pharmacol Sci 2023; 27:256-274. [PMID: 36647876 DOI: 10.26355/eurrev_202301_30907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
OBJECTIVE In addition to significantly reducing breast cancer recurrence risk, radiotherapy also prolongs patients' lives. However, radiotherapy-related genes and biomarkers still remain poorly understood. The present study aimed to identify radiation-associated genes in breast cancer. MATERIALS AND METHODS Breast cancer data were downloaded from Gene Expression Omnibus (GEO) and UCSC Xena database. The gene ontology (GO) enrichment and gene set enrichment analysis (GSEA) were performed for annotation and integrated discovery. Protein-protein interaction (PPI) network was constructed by STRING database and hub genes were identified. Then, immunohistochemistry and tissue expression of key genes was analyzed by using the Human Protein Atlas (HPA) and GEPIA database. Genes associated with prognosis were identified by performing univariate cox analysis. RESULTS We identified 341 differentially expressed genes related to radiotherapy in breast cancer patients. PPI analysis revealed a total of 129 nodes and 516 interactions and identified five hub genes (EGFR, FOS, ESR1, JUN, and IL6). In addition, 11 SDEGs THBS1, SERPINA11, NFIL3, METTL7A, KCTD12, HSPA6, EGR1, DDIT4, CCDC3, C11orf96, and BCL2A1 candidate genes can be used as potential diagnostic markers. The calibration curve and ROC indicate good probability consistencies of 3-years and 5-year survival rates of patients between estimation and observation. CONCLUSIONS Our findings provide novel insight into the functional characteristics of breast cancer through integrative analysis of GEO data and suggest potential biomarkers and therapeutic targets for breast cancer.
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Affiliation(s)
- W-C Dan
- Department of Dermatology, Beijing Traditional Chinese Medicine Hospital affiliated to Capital Medical University, Beijing, China.
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Lee P, Burbure N, Deng M, Handorf E, Kumar S. Increasing Radiation Dose in the Setting of Treatment Prolongation for Stage III Non-Small Cell Lung Cancer (NSCLC). Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Lee C, Koleoso O, Deng M, Veltchev I, Lin T, Hallman M, Horwitz E, Wong J. Rectal Dosimetry Using Rectal Hydrogel Spacer in Patients with Recurrent Prostate Cancer Undergoing Salvage High-Dose-Rate Brachytherapy. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Jing H, Deng M, LI Y, Wang S. Defibrotide Protects Endothelium from Radiation Induced Injury: A Potential New Strategy in the Armamentarium against Radiation Toxicity. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.2104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Nilsson S, Deng M, Kutrolli E, Motamedi M, Olivecrona G, Kersten S. Silencing of ANGPTL4 via antisense oligonucleotides effectively reduces plasma triglyceride and glucose levels in mice without causing lymphadenopathy. Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Raiker R, Pakhchanian H, Deng M. 264 Evaluating the risk of post-operative complications in obstructive sleep apnea patients undergoing Mohs micrographic surgery. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Raiker R, Pakhchanian H, Hochman E, Deng M. 261 Examining the risk of new skin cancers among obese patients who undergo bariatric surgery: A multicenter analysis. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Deng M, Sun J, Peng L, Huang Y, Jiang W, Wu S, Zhou L, Chung SK, Cheng X. Scutellarin acts on the AR-NOX axis to remediate oxidative stress injury in a mouse model of cerebral ischemia/reperfusion injury. Phytomedicine 2022; 103:154214. [PMID: 35689902 DOI: 10.1016/j.phymed.2022.154214] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 05/11/2022] [Accepted: 05/26/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Oxidative stress plays an important role in the pathology of ischemic stroke. Studies have confirmedthat scutellarin has antioxidant effects against ischemic injury, and we also reported that the involvement of Aldose reductase (AR) in oxidative stress and cerebral ischemic injury, in this study we furtherly explicit whether the antioxidant effect of scutellarin on cerebral ischemia injury is related to AR gene regulation and its specific mechanism. METHODS C57BL/6N mice (Wild-type, WT) and AR knockout (AR-/-) mice suffered from transient middle cerebral artery occlusion (tMCAO) injury (1 h occlusion followed by 3 days reperfusion), and scutellarin was administered from 2 h before surgery to 3 days after surgery. Subsequently, neurological function was assessed by the modified Longa score method, the histopathological morphology observed with 2,3,5-triphenyltetrazolium chloride (TTC) and hematoxylin-eosin (HE) staining. Enzyme-linked immunosorbent assay (Elisa) was used to detect the levels of ROS, 4-hydroxynonenal (4-HNE), 8-hydroxydeoxyguanosine (8-OHDG), Neurotrophin-3 (NT-3), poly ADP-ribose polymerase-1 (PARP1) and 3-nitrotyrosine (3-NT) in the ischemic penumbra regions. Quantitative proteomics profiling using quantitative nano-HPLC-MS/MS were performed to compare the protein expression difference between AR-/- and WT mice with or without tMCAO injury. The expression of AR, nicotinamide adenine dinucleotide phosphate oxidases (NOX1, NOX2 and NOX4) in the ipsilateral side of ischemic brain were detected by qRT-PCR, Western blot and immunofluorescence co-staining with NeuN. RESULTS Scutellarin treatment alleviated brain damage in tMCAO stroke model such as improved neurological function deficit, brain infarct area and neuronal injury and reduced the expression of oxidation-related products, moreover, also down-regulated tMCAO induced AR mRNA and protein expression. In addition, the therapeutic effect of scutellarin on the reduction of cerebral infarction area and neurological function deficits abolished in AR-/- mice under ischemia cerebral injury, which indicated that the effect of scutellarin treatment on tMCAO injury is through regulating AR gene. Proteomic analysis of AR-/- and WT mice indicated AR knockout would affect oxidation reaction even as NADPH related process and activity in mice under cerebral ischemia conditions. Moreover, NOX isoforms (NOX1, NOX2 and NOX4) mRNA and protein expression were significant decreased in neurons of penumbra region in AR-/- mice compared with that in WT mice at 3d after tMCAO injury, which indicated that AR should be the upstream protein regulating NOX after cerebral ischemia. CONCLUSIONS We first reported that AR directly regulates NOX subtypes (not only NOX2 but also NOX1 and NOX4) after cerebral ischaemic injury. Scutellarin specifically targets the AR-NOX axis and has antioxidant effects in mice with cerebral ischaemic injury, providing a theoretical basis and accurate molecular targets for the clinical application of scutellarin.
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Affiliation(s)
- Minzhen Deng
- Department of Neurology, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou, China; Department of Second Institute of Clinical Medicine, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China
| | - Jingbo Sun
- Department of Neurology, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou, China; State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China; Department of Second Institute of Clinical Medicine, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China; Guangdong Provincial Key Laboratory of Research on Emergency in TCM, Guangzhou, China
| | - Lilin Peng
- Department of Second Institute of Clinical Medicine, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China
| | - Yan Huang
- Department of Neurology, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou, China; State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China; Department of Second Institute of Clinical Medicine, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China; Guangdong Provincial Key Laboratory of Research on Emergency in TCM, Guangzhou, China
| | - Wen Jiang
- Department of Second Institute of Clinical Medicine, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China
| | - Shuang Wu
- Department of Second Institute of Clinical Medicine, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China
| | - Lihua Zhou
- Department of Anatomy, Sun Yat-Sen School of Medicine, Sun Yat-Sen University, Shenzhen, China
| | - Sookja Kim Chung
- Faculty of Medicine, Macau University of Science and Technology, Macau, China
| | - Xiao Cheng
- Department of Neurology, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou, China; State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China; Department of Second Institute of Clinical Medicine, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China; Guangdong Provincial Key Laboratory of Research on Emergency in TCM, Guangzhou, China.
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Jiang W, Li J, Cai Y, Liu W, Chen M, Xu X, Deng M, Sun J, Zhou L, Huang Y, Wu S, Cheng X. The Novel lncRNA ENST00000530525 Affects ANO1, Contributing to Blood-Brain Barrier Injury in Cultured hCMEC/D3 Cells Under OGD/R Conditions. Front Genet 2022; 13:873230. [PMID: 35754821 PMCID: PMC9213740 DOI: 10.3389/fgene.2022.873230] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 05/19/2022] [Indexed: 11/13/2022] Open
Abstract
Ischemic stroke (IS) is a major neurological disease with high fatality and residual disability burdens. Long noncoding RNAs (lncRNAs) have been found to play an important role in IS. However, the roles and significance of most lncRNAs in IS are still unknown. This study was performed to identify differentially expressed (DE) lncRNAs using a lncRNA microarray in whole blood samples of patients suffering from acute cerebral ischemia. Bioinformatics analyses, including GO, KEGG pathway enrichment analysis, and proximity to putative stroke risk location analysis were performed. The novel lncRNA, ENST00000530525, significantly decreased after IS. Furthermore, we evaluated lncRNA ENST00000530525 expression in cultured hCMEC/D3 cells under oxygen-glucose deprivation/reoxygenation (OGD/R) conditions using fluorescent in situ hybridization (FISH) and quantitative real-time polymerase chain reaction (RT-qPCR) analysis. To investigate the function of lncRNA ENST00000530525, its over-expression (OE) and negative control (NC) plasmids were transfected into hCMEC/D3 cells, and cell viability was detected by a cell counting kit-8 (CCK-8) assay after OGD/R. LncRNA ENST00000530525 and ANO1 expression were investigated using RT-qPCR and immunofluorescence. For blood-brain barrier (BBB) permeability, FITC-dextran transendothelial permeability assay and tight junction (TJ) protein immunofluorescence assays were performed. There were 3352 DE lncRNAs in the blood samples of acute IS patients. The validation results were consistent with the gene chip data. The GO and KEGG results showed that these lncRNAs were mainly related to oxygen and glucose metabolism, leukocyte transendothelial migration, mitophagy and cellular senescence. Among these, lncRNA ENST00000530525 was the most highly downregulated lncRNA and it was mapped within the IS-associated gene anoctamin-1 (ANO1). We further found that lncRNA ENST00000530525 was downregulated in hCMEC/D3 cells under 4 h OGD and 20 h reoxygenation (OGD4/R20) conditions. Upregulating lncRNA ENST00000530525 by plasmid transfection decreased cell viability while increasing ANO1 expression and it contributed to BBB injury in hCMEC/D3 cells after OGD4/R20. The lncRNA ENST00000530525 might play deleterious roles in post-stroke pathogenesis. These results show that some DE lncRNAs in humans participate through characteristic roles in post-stroke pathogenesis; thus, the roles and significance of some novel lncRNAs in IS warrant further study.
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Affiliation(s)
- Wen Jiang
- Department of Second Institute of Clinical Medicine, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China
| | - Jie Li
- Department of Anesthesiology, Guangdong Provincial Hospital of Traditional Chinese Medicine/The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yuefang Cai
- Department of Second Institute of Clinical Medicine, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China
| | - Wenchen Liu
- Department of Neurology, Guangdong Provincial Hospital of Traditional Chinese Medicine/The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Mei Chen
- Department of Neurology, Guangdong Provincial Hospital of Traditional Chinese Medicine/The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaoying Xu
- Department of Anatomy, Sun Yat-Sen School of Medicine, Sun Yat-Sen University, Shenzhen, China
| | - Minzhen Deng
- Department of Neurology, Guangdong Provincial Hospital of Traditional Chinese Medicine/The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jingbo Sun
- Department of Second Institute of Clinical Medicine, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China.,Department of Neurology, Guangdong Provincial Hospital of Traditional Chinese Medicine/The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.,State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.,Guangdong Provincial Key Laboratory of Research on Emergency in TCM, Guangzhou, China
| | - Lihua Zhou
- Department of Anatomy, Sun Yat-Sen School of Medicine, Sun Yat-Sen University, Shenzhen, China
| | - Yan Huang
- Department of Second Institute of Clinical Medicine, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China.,Department of Neurology, Guangdong Provincial Hospital of Traditional Chinese Medicine/The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.,State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.,Guangdong Provincial Key Laboratory of Research on Emergency in TCM, Guangzhou, China
| | - Shuang Wu
- Department of Second Institute of Clinical Medicine, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China
| | - Xiao Cheng
- Department of Second Institute of Clinical Medicine, Guangzhou University of Traditional Chinese Medicine, Guangzhou, China.,Department of Neurology, Guangdong Provincial Hospital of Traditional Chinese Medicine/The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.,State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.,Guangdong Provincial Key Laboratory of Research on Emergency in TCM, Guangzhou, China
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22
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Qi Z, Chen J, Deng M, Zhang Y, Ma T, Ma M. Protection of Toll-Like Receptor 9 Against Lipopolysaccharide-Induced Inflammation and Oxidative Stress of Pulmonary Epithelial Cells via MyD88-Mediated Pathways. Physiol Res 2022; 71:259-273. [DOI: 10.33549/physiolres.934741] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Acute lung injury (ALI) caused by lipopolysaccharide (LPS) is a common, severe clinical syndrome. Injury caused by inflammation and oxidative stress in vascular endothelial and alveolar epithelial cells is a vital process in the pathogenesis of ALI. Toll-like receptor 9 (TLR9) is highly expressed in LPS-induced ALI rats. In this study, Beas-2B human pulmonary epithelial cells and A549 alveolar epithelial cells were stimulated by LPS, resulting in the upregulation of TLR9 in a concentration-dependent manner. Furthermore, TLR9 overexpression and interference vectors were transfected before LPS administration to explore the role of TLR9 in LPS-induced ALI in vitro. The findings revealed that inhibition of TLR9 reduced inflammation and oxidative stress while suppressing apoptosis of LPS-induced Beas-2B and A549 cells, whereas TLR9 overexpression aggravated these conditions. Moreover, TLR9 inhibition resulted in downregulated protein expression of myeloid differentiation protein 88 (MyD88) and activator activator protein 1 (AP-1), as well as phosphorylation of nuclear factor-B (NF-B), c-Jun N terminal kinase (JNK), and p38 mitogen-activated protein kinase (MAPK). The phosphorylation of extracellular-regulated protein kinases 1/2 was upregulated compared to that of cells subjected to only LPS administration, and this was reversed by TLR9 overexpression. These results indicate that inhibition of TLR9 plays a protective role against LPS-induced inflammation and oxidative stress in Beas-2B and A549 cells, possibly via the MyD88/NF-B and MyD88/MAPKs/AP-1 pathways.
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Affiliation(s)
- Z Qi
- Department of Critical Care Medicine, Foshan Hospital of Traditional Chinese Medicine, Foshan, China.
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23
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Wang K, Zhang J, Deng M, Ju Y, Ouyang M. [METTL27 is a prognostic biomarker of colon cancer and associated with immune invasion]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:486-497. [PMID: 35527484 DOI: 10.12122/j.issn.1673-4254.2022.04.04] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
OBJECTIVE To investigate the expression and gene function of methyltransferase-like protein 27 (METTL27) in colon cancer, its association with immune infiltration and its prognostic significance. METHODS We analyzed the expression levels of METTL27 in 33 cancers using R language and identified METTL27 as a differential gene in colon cancer. The related signaling pathways of METTL27 were analyzed by gene functional annotation and enrichment. SsGSEA algorithm was used to analyze immune infiltration, and logistic analysis was used to evaluate the correlation between METTL27 expression and clinicopathological features of the patients. Kaplan-meier analysis, univariate and multivariate Cox regression analysis were performed to construct a nomogram for evaluating the correlation between METTL27 expression and clinical prognosis. The expression level of METTL27 was further verified in colorectal cancer cell lines and 16 clinical specimens of colorectal cancer tissues using qPCR and Western blotting. RESULTS METTL27 was highly expressed in 21 cancers, and its expression was significantly higher in colon cancer than in adjacent tissues (P < 0.001). METTL27-related genes were identified by differential analysis, and functional annotation revealed that METTL27 was significantly enriched in transmembrane transport and lipid metabolism, and 5 related signaling pathways were identified by GSEA. METTL27 expression was negatively correlated with different T helper cells and central memory T cells (P < 0.001). The patients with a high METTL27 mRNA expression had a poor survival outcome. Cox regression analysis showed that METTL27 expression was an independent prognostic factor of the overall survival. The expression level of METTL27 was significantly higher in the colorectal cancer cell line than in normal cells (P < 0.05). CONCLUSION METTL27 is overexpressed in colon cancer and is associated with a poor prognosis of the patients. A high expression of METTL27 showed is associated less T cell immune infiltration, suggesting the potential of METTL27 as a prognostic marker of colon cancer.
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Affiliation(s)
- K Wang
- Department of Gastrointestinal Surgery, Shunde Hospital, Southern Medical University, Foshan 528308, China
| | - J Zhang
- Department of Gastrointestinal Surgery, Shunde Hospital, Southern Medical University, Foshan 528308, China
| | - M Deng
- Department of Gastrointestinal Surgery, Shunde Hospital, Southern Medical University, Foshan 528308, China
| | - Y Ju
- Department of Gastrointestinal Surgery, Shunde Hospital, Southern Medical University, Foshan 528308, China
| | - M Ouyang
- Department of Gastrointestinal Surgery, Shunde Hospital, Southern Medical University, Foshan 528308, China
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Kamath M, Deng M, Raval N, Zhou M, Tian W, Mammen P, Van Bakel A, Shah P, Patel S. Effect of COVID-19 Infection on HeartCare, Data from the SHORE Multicenter Registry. J Heart Lung Transplant 2022. [PMCID: PMC8988483 DOI: 10.1016/j.healun.2022.01.417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Purpose Transplant patients represent a cohort in which COVID-19 (C19) may stimulate an unpredictable clinical course. The aim of this study was to evaluate the impact of C19 infection on AlloMap gene expression profiling (AM) and AlloSure donor derived cell free DNA (AS) results in patients post heart transplant. Methods The Surveillance Using HeartCare Outcomes Registry (SHORE) is a multicenter study for post heart transplant patients followed with AM/AS for 5 years. Patients enrolled were analyzed based on C19 . AM/AS were evaluated before, at the time and following infection. Both individual trends and the differences between the median AS and AS levels were studied. Nonparametric tests were used to assess categorical and longitudinal variables. Results 21 patients developed C19 infection; 16 (76%) were males, median age 50 years. There was no significant difference in AM or AS in stable patients (no rejection, CAV, graft dysfunction, dnDSA) compared to the first AM/AS profile in the C19+ patients, Figure 1. Event rates in C19+ patients are described in Table 1. 12 C19+ patients had 28 biopsies, 2 of which were within 30 days of C19. 1 patient had ACR 2R and another AMR 1; all other biopsies were <ACR 2R/AMR1. Additionally, 5 patients developed dnDSA and 7 patients developed subsequent CMV viremia, a median of 67 and 158 days after C19 diagnosis, respectively. No CAV, graft dysfunction, or deaths were reported in this small group of C19+ patients. Conclusion The presence of C19 infection is not associated with a significant increase in AS or AM scores, suggesting AS and AM are not confounded by C19 and can be used safely as non-invasive surveillance in this population.
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Pirlamarla A, Deng M, Paly J, Yankey H, Dougherty T, Dotan E, Farma J, Meyer J. Comparing Toxicity and Outcomes Between Twice-Daily (BID) vs. Pulsed Low-Dose Rate (PLDR) Radiotherapy (RT) for Reirradiation of Anorectal Cancers. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Burbure N, Deng M, Handorf E, Kumar S. Clinical Significance of Total Radiation Dose for Patients With Treatment Delays in Stage III Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Copella A, Deng M, Handorf E, Kumar S. Effect of Adjuvant Chemotherapy After SBRT for Node Negative, Non-Metastatic Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Deng M, Morgan C, Runeckles K, Fan C, Jaeggi E, Honjo O. IMPACT OF TRUNCAL VALVE REGURGITATION ON LEFT VENTRICULAR FUNCTION AND GEOMETRY IN COMMON ARTERIAL TRUNK: A CASE-MATCH CONTROLLED STUDY. Can J Cardiol 2021. [DOI: 10.1016/j.cjca.2021.07.202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Raiker R, Pakhchanian H, Hochman E, Russomanno K, Deng M. LB766 Prevalence and adverse events of special interest among COVID19-vaccinated patients with chronic inflammatory skin diseases: An early look. J Invest Dermatol 2021. [PMCID: PMC8374135 DOI: 10.1016/j.jid.2021.07.108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Pakhchanian H, Raiker R, Russomanno K, Deng M. LB768 Adult and pediatric emergency department visits for dermatological conditions during the COVID-19 pandemic: A multicenter analysis. J Invest Dermatol 2021. [PMCID: PMC9444328 DOI: 10.1016/j.jid.2021.07.110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Raiker R, Pakhchanian H, Hussain A, Deng M. Outcomes of COVID-19 in patients with skin cancer. Br J Dermatol 2021; 185:654-655. [PMID: 33837520 PMCID: PMC8251277 DOI: 10.1111/bjd.20386] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 04/07/2021] [Accepted: 04/07/2021] [Indexed: 01/23/2023]
Affiliation(s)
- R Raiker
- West Virginia University School of Medicine, Morgantown, WV, USA
| | - H Pakhchanian
- George Washington University School of Medicine and Health Science, Washington, DC, USA
| | - A Hussain
- MedStar Washington Hospital Center, MedStar Georgetown University Hospital, Washington, DC, USA
| | - M Deng
- MedStar Washington Hospital Center, MedStar Georgetown University Hospital, Washington, DC, USA
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Deng M, Zhong X, Gao Z, Jiang W, Peng L, Cao Y, Zhou Z, Huang L. Dynamic changes in Beclin-1, LC3B and p62 at various time points in mice with temporary middle cerebral artery occlusion and reperfusion (tMCAO). Brain Res Bull 2021; 173:124-131. [PMID: 33974897 DOI: 10.1016/j.brainresbull.2021.05.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 04/26/2021] [Accepted: 05/03/2021] [Indexed: 10/21/2022]
Abstract
Ischaemic stroke is attributable to cerebrovascular disease and is associated with high morbidity, disability, mortality and recurrence. Autophagy is a critical mediator and plays dual roles in ischaemic stroke. Autophagy can protect against ischaemic brain injury during the early stage of ischaemic stroke, while excessive autophagy can induce apoptosis and exacerbate brain injury. However, the time-dependent variations in autophagy in ischaemic stroke are unknown. C57BL/6 mice were used to establish a model of temporary middle cerebral artery occlusion and reperfusion (tMCAO). The neurological functional scores and infarct volumes were determined at 1 d, 3 d, 5 d, and 7 d after modelling. The levels of Beclin-1, LC3B, p62, GFAP, TNF-α, IL-6, IL-10, ROS, 4-HNE and 8-OHDG were measured by ELISA, RT-PCR, immunofluorescence analysis and western blotting. The morphology of autophagosomes of ischaemic penumbra was observed by transmission electron microscopy (TEM). Beclin-1, LC3B, ROS, 4-HNE, 8-OHDG, GFAP, TNF-α and IL-6 levels increased (P < 0.01), while p62 and IL-10 levels decreased (P < 0.01) after tMCAO compared to those in the sham group. Beclin-1, LC3B, ROS, 4-HNE, 8-OHDG, GFAP, TNF-α and IL-6 levels were reduced in tMCAO mice at 3 d, 5 d and 7 d (P<0.05), and p62 and IL-10 levels were enhanced (P < 0.05) compared to those at 1 d. In addition, Beclin-1 positively correlated with LC3B, GFAP, TNF-α, IL-6, ROS, 4-HNE and 8-OHDG (P < 0.05), and Beclin-1 negatively correlated with p62 and IL-10 (P < 0.05). The number of autophagosomes was consistent with the expression of autophagy marker proteins, both showing a steady decrease. In summary, autophagy was activated within 7 d of tMCAO induction, and it strengthened at 1 d and then weakened steadily from 3 to 7 d. In addition, this study verified that autophagy positively correlated with the inflammatory response and oxidative stress at 7 d after tMCAO.
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Affiliation(s)
- Minzhen Deng
- Department of Neurology, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Postdoctoral Research Station of Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510120, PR China
| | - Xiaoqin Zhong
- Department of Neurology, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Postdoctoral Research Station of Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510120, PR China; The First Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou 510405, PR China
| | - Zhijie Gao
- Department of Neurology, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Postdoctoral Research Station of Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510120, PR China
| | - Wen Jiang
- Department of Neurology, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Postdoctoral Research Station of Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510120, PR China
| | - Lilin Peng
- Department of Neurology, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Postdoctoral Research Station of Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510120, PR China
| | - Yucheng Cao
- Department of Neurology, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Postdoctoral Research Station of Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510120, PR China
| | - Zhongliu Zhou
- School of Chemistry and Chemical Engineering, Lingnan Normal University, Zhanjiang 524048, PR China.
| | - Liping Huang
- School of Chemistry and Chemical Engineering, Lingnan Normal University, Zhanjiang 524048, PR China.
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Pakhchanian H, Raiker R, Doepker C, Deng M. 340 Using Google trends to calculate patient demand for general dermatologists in the United States. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Chen WY, Fang ZX, Lv XD, Zhou QH, Yao M, Deng M. Prediction of potential therapeutic drugs against SARS-CoV-2 by using Connectivity Map based on transcriptome data. Eur Rev Med Pharmacol Sci 2021; 25:3122-3131. [PMID: 33877681 DOI: 10.26355/eurrev_202104_25567] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Transcriptome data related to severe acute respiratory syndrome-related coronavirus 2 (a novel coronavirus discovered in 2019, SARS-CoV-2) in GEO database were downloaded. Based on the data, influence of SARS-CoV-2 on human cells was analyzed and potential therapeutic compounds against the SARS-CoV-2 were screened. MATERIALS AND METHODS R package "DESeq2" was used for differential gene analysis on the data of cells infected or non-infected with SARS-CoV-2. The "ClusterProfiler" package was used for GO functional annotation and KEGG pathway enrichment analysis of the differentially expressed genes (DEGs). A protein-protein interaction (PPI) network of the DEGs was constructed through STRING website, and the key subset in the PPI network was identified after visualization by Cytoscape software. Connectivity Map (CMap) database was used to screen known compounds that caused genomic change reverse to that caused by SARS-CoV-2. RESULTS By intersecting DEGs in two datasets, a total of 145 DEGs were screened out, among which 136 genes were upregulated and 9 genes were downregulated in SARS-CoV-2-infected cells. Functional enrichment analyses revealed that these genes were mainly associated with the pathways involved in viral infection, inflammatory response, and immunity. The CMap research found that there were three compounds with a median_tau_score less than -90, namely triptolide, tivozanib and daunorubicin. CONCLUSIONS SARS-CoV-2 can cause abnormal changes in a large number of molecules and related signaling pathways in human cells, among which IL-17 and TNF signaling pathways may play a key role in pathogenic process of SARS-CoV-2. Here, three compounds that may be effective for the treatment of SARS-CoV-2 were screened, which would provide new options for improving treatment of patients infected with SARS-CoV-2.
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Affiliation(s)
- W-Y Chen
- Department of Respiration, the First Hospital of Jiaxing and Affiliated Hospital of Jiaxing University, Jiaxing, China.
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Deng XJ, Zheng HL, Ke XQ, Deng M, Ma ZZ, Zhu Y, Cui YY. Hsa-miR-34a-5p reverses multidrug resistance in gastric cancer cells by targeting the 3'-UTR of SIRT1 and inhibiting its expression. Cell Signal 2021; 84:110016. [PMID: 33894312 DOI: 10.1016/j.cellsig.2021.110016] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 04/06/2021] [Accepted: 04/19/2021] [Indexed: 12/24/2022]
Abstract
Multidrug resistance (MDR) is a major obstacle to chemotherapy, which leads to ineffective chemotherapy, an important treatment strategy for gastric cancer (GC). The abnormality of microRNAs (miRNAs) is critical to the occurrence and progression of MDR in various tumors. In this study, hsa-miR-34a-5p was found to be decreased in multidrug resistant GC cells SGC-7901/5-Fluorouracil (SGC-7901/5-Fu) compared to the parental SGC-7901 cells. Overexpression of hsa-miR-34a-5p in SGC-7901/5-Fu cells promoted apoptosis and decreased migration and invasiveness after chemotherapy. In addition, overexpression of hsa-miR-34a-5p suppressed the growth of drug-resistant tumor in vivo. The mechanism of the effects of hsa-miR-34a-5p could include the regulation of the expression of Sirtuin 1 (SIRT1), P-glycoprotein (P-gp) or Multidrug resistance-related protein 1 (MRP1) through direct binding to the 3'-untranslated region (UTR) of SIRT1. Functional gain-and-loss experiments indicated that hsa-miR-34a-5p enhances the chemotherapy sensitivity of MDR GC cells by inhibiting SIRT1, P-gp and MRP1. In conclusion, hsa-miR-34a-5p can reverse the MDR of GC cells by inhibiting the expression of SIRT1, P-gp or MRP1.
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Affiliation(s)
- X J Deng
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, China; Department of Gastroenterology, The First Affiliated Hospital of Jinan University, China.
| | - H L Zheng
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, China
| | - X Q Ke
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, China
| | - M Deng
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, China
| | - Z Z Ma
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, China
| | - Y Zhu
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, China
| | - Y Y Cui
- Department of Gastroenterology, The First Affiliated Hospital of Bengbu Medical College, China
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Wei JF, Huang SB, Jin P, Li JY, Yang YY, Hu CJ, Yang LF, Zhang ZW, Deng M, Deng JP. An incremental feeding pattern for Guangdong Small-ear Spotted gilts during gestation: effects on stillbirth rate and muscle weight of progeny. Domest Anim Endocrinol 2021; 75:106604. [PMID: 33556766 DOI: 10.1016/j.domaniend.2021.106604] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 11/08/2020] [Accepted: 01/05/2021] [Indexed: 11/25/2022]
Abstract
While an appropriate feed intake is crucial for the reproductive performance of sows, there is a lack of recommendations currently for feed allowance of Guangdong Small-ear Spotted gilts during gestation. The effects of 2 different feeding patterns during gestation on the reproductive performance of Guangdong Small-ear Spotted gilts were investigated by assigning 80 gilts to 2 feeding pattern groups with a randomized complete block design in accordance with initial body weight and back fat thickness, followed by treatment with an incremental feeding pattern (IFP) and a concaved feeding pattern, respectively, with no difference in total feed intake. The IFP group showed a significant decrease in the stillbirth rate (P < 0.05) and an upward trend in piglet mean birth weight (P = 0.06). Furthermore, the IFP group exhibited an increase in the weights of stomach, supraspinatus tendon, triceps, and psoas minor in neonatal piglets (P < 0.05). Overall, the results of the present investigation showed that IFP could significantly reduce the stillbirth rate of Guangdong Small-ear Spotted gilts and increase the muscle weight of progeny.
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Affiliation(s)
- J F Wei
- Guangzhou DaBeiNong Agri-animal Huabandry Science and Technology Co., Ltd, Guangzhou, Guangdong 510642, China
| | - S B Huang
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - P Jin
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - J Y Li
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Y Y Yang
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - C J Hu
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - L F Yang
- Guangdong Yihao Foodstuffs Co. Ltd, Guangzhou, Guangdong 510642, China
| | - Z W Zhang
- Guangdong Yihao Foodstuffs Co. Ltd, Guangzhou, Guangdong 510642, China
| | - M Deng
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China.
| | - J P Deng
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China.
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Silacheva I, Bondar G, Nakade T, Grogan T, Elashoff D, Deng M. Phenotype-Guided Inflammation-Related Long Non-Coding RNA Discovery in Heart Failure Survival Prediction. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Halloran P, Madill-Thomsen K, Mackova M, Aliabadi-Zuckermann A, Cadeiras M, Crespo-Leiro M, Depasquale E, Deng M, Goekler J, Kim D, Kobashigawa J, Parkes M, Macdonald P, Potena L, Shah K, Stehlik J, Zuckermann A. New Molecular Classification of Rejection in Heart Transplant Biopsies Reveals Relatively Little Three Year Graft Loss in Antibody-Mediated Rejection. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Moslim M, Deng M, Handorf E, Greco S, Reddy S, Farma J. Standard of Care and Survival for Signet-ring Cell and Non-Signet-ring Cell Gastric Cancer are More Achievable at Academic Cancer Centers. Eur J Surg Oncol 2021. [DOI: 10.1016/j.ejso.2020.11.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Huang M, Deng M, Nie W, Zou D, Wu H, Xu D. Naringenin Inhibits Platelet Activation and Arterial Thrombosis Through Inhibition of Phosphoinositide 3-Kinase and Cyclic Nucleotide Signaling. Front Pharmacol 2021; 12:722257. [PMID: 34475824 PMCID: PMC8406801 DOI: 10.3389/fphar.2021.722257] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 07/30/2021] [Indexed: 11/19/2022] Open
Abstract
Citrus flavanoids intake can reduce the risk of cardiovascular diseases. Naringenin, a natural predominant flavonoid abundant in citrus fruits, possesses protective effects against atherothrombotic diseases. As platelet activation plays central roles in atherothrombogenesis, we studied the effects of naringenin on platelet activation, signaling, thrombosis and hemostasis. Naringenin dose-dependently inhibited agonist-induced platelet aggregation in vitro, and exhibited more-potent efficacy on ADP-induced platelet aggregation. It also suppressed platelet aggregation stimulated by ADP ex vivo. Naringenin inhibited ADP-induced platelet α-granule secretion, fibrinogen binding, intracellular calcium mobilization and platelet adhesion on collagen-coated surface. Naringenin also inhibited platelet spreading on fibrinogen and clot retraction, processes mediated by outside-in integrin signaling. Mechanism studies indicated that naringenin suppressed PI3K-mediated signaling and phosphodiesterase activity in platelets, in addition to increasing cGMP levels and VASP phosphorylation at Ser239. Furthermore, naringenin-induced VASP phosphorylation and inhibition of platelet aggregation were reversed by a PKA inhibitor treatment. Interestingly, naringenin inhibited thrombus formation in the (FeCl3)-induced rat carotid arterial thrombus model, but not cause a prolonged bleeding time in mice. This study suggests that naringenin may represent a potential antiplatelet agent targeting PI3K and cyclic nucleotide signaling, with a low bleeding risk.
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Affiliation(s)
- Manting Huang
- Department of Vascular Intervention, Zhongshan Hospital of Traditional Chinese Medicine, Affiliated to Guangzhou University of Chinese Medicine, Zhongshan, China
- Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Minzhen Deng
- Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wenqiang Nie
- Department of Traditional Chinese Medicine, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Dezhi Zou
- Emergency Department, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Huanlin Wu
- Guangdong Provincial Hospital of Chinese Medicine, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
- *Correspondence: Huanlin Wu, ; Danping Xu,
| | - Danping Xu
- Department of Traditional Chinese Medicine, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
- *Correspondence: Huanlin Wu, ; Danping Xu,
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Mei T, Deng M, Yang X, Mei L, Zhou X, Zhou L, Xu Y, Xue J, Zou B, Wang J, Lu Y, Gong Y. Effect and Toxicity of Bilateral Supraclavicular Lymph Node Irradiation on Stage III Lower Thoracic Esophageal Cancer After Radical Surgery. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Al-Saffar F, Hsu J, Fuentes J, Smith J, Fraschilla S, Stimpson E, Moore M, Fan A, Kwon M, Ardehali A, Cruz D, Deng M, Nsair A. Combined AlloSure and AlloMap Testing in Multi-Organ Heart Transplantation Rejection Surveillance. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.566] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Halloran P, Reeve J, Aliabadi A, Cadeiras M, Crespo-Leiro M, Depasquale E, Deng M, Goekler J, Kim D, Kobashigawa J, Parkes M, Macdonald P, Potena L, Stehlik J, Zuckermann A. Mapping the Injury Phenotypes of Heart Transplant. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.1249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Bondar G, Bao T, Kurani M, Oh E, Patel K, Shah K, Nelson S, Savvidou S, Kupiec-Weglinsky S, Fadly G, Higuchi E, Silacheva I, LaPierre N, Li Z, Genewick K, Yu S, Grogan T, Elashoff D, Wang W, Ping P, Rossetti M, Reed E, Li X, Deng M. Exercise-Induced Genomic and Transcriptomic Changes in Heart Failure. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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DePasquale E, Deng M, Kamath M, Hall S. The Use of AlloMap and AlloSure in Combined Heart-Kidney Transplantation. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Hsu J, Saffar FA, Fraschilla S, Moore M, Kamath M, Ardehali R, Cruz D, Baas A, Deng M, Kwon M, Shemin R, Ardehali A, Nsair A. Use of Cardiac Grafts from Suicidal Hanging Donors: Single-Center Experience. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Deng M, Huang L, Zhong X. β‑asarone modulates Beclin‑1, LC3 and p62 expression to attenuate Aβ40 and Aβ42 levels in APP/PS1 transgenic mice with Alzheimer's disease. Mol Med Rep 2020; 21:2095-2102. [PMID: 32186763 PMCID: PMC7115210 DOI: 10.3892/mmr.2020.11026] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 01/22/2020] [Indexed: 12/14/2022] Open
Abstract
Alzheimer's disease (AD) is a common neurodegenerative disease in the elderly population. Autophagy is a well-known regulator of neurodegenerative diseases and β-asarone has been discovered to have certain neuropharmacological effects. Thus, the present study aimed to analyze the potential effects of β-asarone in AD and its possible mechanism of action in relation to autophagy. The present study investigated the effects of β-asarone on the number of senile plaques and amyloid β(Aβ)40, Aβ42, amyloid precursor protein (APP) and Beclin-1 mRNA levels in the hippocampus of APP/presenilin-1 (PS1) transgenic mice. The possible mechanism of β-asarone on autophagy-related proteins, including Beclin-1, light chain (LC)3A, LC3B and p62 levels, and the number of autophagosomes was also investigated. Mice were divided into a normal control group, a model group, a β-asarone-treated group, a 3-MA-treated group and a rapamycin-treated group. Treatments were continuously administered to all mice for 30 days by intragastric administration. The mice, including those in the normal and model control groups, were given equal volumes of saline. It was demonstrated that β-asarone treatment reduced the number of senile plaques and autophagosomes, and decreased Aβ40, Aβ42, APP and Beclin-1 expression in the hippocampus of model mice compared with untreated model mice. β-asarone also inhibited LC3A/B expression levels, but increased p62 expression. It was deduced that the neuroprotective effects of β-asarone in APP/PS1 transgenic mice resulted from its inhibition of autophagy. In conclusion, the data suggested that β-asarone should be explored further as a potential therapeutic agent in AD.
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Affiliation(s)
- Minzhen Deng
- Department of Neurology, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510120, P.R. China
| | - Liping Huang
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering, Lingnan Normal University, Zhanjiang, Guangdong 524048, P.R. China
| | - Xiaoqin Zhong
- Department of Neurology, Guangdong Provincial Hospital of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510120, P.R. China
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Huang L, Zhong X, Qin S, Deng M. Protocatechuic acid attenuates β‑secretase activity and okadaic acid‑induced autophagy via the Akt/GSK‑3β/MEF2D pathway in PC12 cells. Mol Med Rep 2020; 21:1328-1335. [PMID: 31894327 DOI: 10.3892/mmr.2019.10905] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 11/21/2019] [Indexed: 11/06/2022] Open
Abstract
Okadaic acid (OA) can be used to induce an Alzheimer's disease (AD) model characterized by tau hyperphosphorylation, the formation of neurofibrillary tangles formation and β‑amyloid (Aβ) deposition. Previous studies have shown that the upregulation of Beclin‑1‑dependent autophagy may contribute to the elimination of aggregated Aβ. However, the effects of protocatechuic acid (PA) on the levels of Aβ42, phosphorylated (p)‑tau and β‑secretase in OA‑induced cell injury are unclear, and little is known concerning the role of the PA signaling pathway in the regulation of autophagy. The present study aimed to determine whether PA protects cells from OA‑induced cytotoxicity via the regulation of Beclin‑1‑dependent autophagy and its regulatory signaling pathway. PC12 cells were treated with OA with or without PA for 24 h. Enzymatic assays were performed to measure p‑tau, Aβ42 and β‑secretase activity. Western blotting was performed to detect p‑Akt, p‑glycogen synthase kinase‑3β (p‑GSK‑3β), Akt, GSK‑3β, myocyte enhancer factor 2D (MEF2D) and Beclin‑1 protein expression levels. Immunofluorescence and immunocytochemistry were used to measure Beclin‑1 expression levels. The results from this study showed that PA could increase cell viability and significantly decrease the levels of Aβ42, p‑tau, β‑secretase and Beclin‑1. PA can also promote the expression of p‑Akt and MEF2D while suppressing the expression of p‑GSK‑3β. These results indicated that PA protects PC12 cells from OA‑induced cytotoxicity, and attenuates autophagy via regulation of the Akt/GSK‑3β/MEF2D pathway, therefore potentially contributing to the neuroprotective effects of PA against OA toxicity. These findings suggested that PA may have potential as a drug candidate in preventative AD therapy.
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Affiliation(s)
- Liping Huang
- School of Chemistry and Chemical Engineering, Lingnan Normal University, Zhanjiang, Guangdong 524048, P.R. China
| | - Xiaoqin Zhong
- Department of Neurology, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong 510120, P.R. China
| | - Shaochen Qin
- Department of Neurology, The Affiliated Hospital of Shanxi University of Chinese Medicine, Taiyuan, Shanxi 030024, P.R. China
| | - Minzhen Deng
- Department of Neurology, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, Guangdong 510120, P.R. China
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Affiliation(s)
- M. Deng
- Department of Mathematics, Towson University, Towson, Maryland, USA
| | - M. S. Aminzadeh
- Department of Mathematics, Towson University, Towson, Maryland, USA
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Wáng YXJ, Che-Nordin N, Deng M, Griffith JF, Leung JCS, Kwok AWL, Leung PC, Kwok TCY. Elderly males with or without existing osteoporotic vertebral fracture have much lower future vertebral fracture risk than elderly females: the MrOS (Hong Kong) year-4 follow-up spine radiograph study. Osteoporos Int 2019; 30:2505-2514. [PMID: 31478068 DOI: 10.1007/s00198-019-05136-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 08/16/2019] [Indexed: 12/18/2022]
Abstract
UNLABELLED MrOS (Hong Kong)'s year-4 follow-up shows, for subjects at baseline without vertebral deformity (VD) and endplate or/and cortex fracture (ECF), the VD progression/new VD rate during follow-up in males was half of our paired MsOS (Hong Kong) study's results. For those with VD or ECF, the VD progression/new VD was less than one sixth of females' rate. INTRODUCTION This study documents MrOS (Hong Kong)'s year-4 follow-up, and the results are compared with the MsOS (Hong Kong) study. Of elderly females with Genant's grade-0, -1, -2, and -3 VD, at year-4 follow-up, 4.6%, 8%, 10.6%, and 28.9% had at least one VD progression or incident VD, respectively. METHODS Spine radiographs of 1500 Chinese males with baseline (mean age 71.7 years, range 65-91 years) and year-4 follow-up were evaluated according to Genant's VD criteria and ECF (non-existent, ECF0; or existent, ECF1). Grade-2 VDs were divided into mild (VD2m, 25-34% height loss) and severe (VD2s, 34-40% height loss) subgroups. Study subjects were graded into eight categories: VD0/ECF0, VD1/ECF0, VD2m/ECF0, VD0/ECF1, VD1/ECF1, VD2m/ECF1, VD2s/ECF1, and VD3/ECF1. With an existing VD, a further height loss of ≥ 15% was a VD progression. A new VD incident was a change from grade-0 to grade-2/3, or to grade-1 with ≥ 10% height loss. RESULTS Of subjects with Genant's grade-0, 2.05% (25/1219) developed at least one VD progression or/and new VD, while of subjects with Genant's grade-1, -2, and -3 VD, only 2% (3/149), 3.1% (3/96), and 2.8% (1/36) developed at least one VD progression/new VD, respectively. Among the three ECF0 groups, there was a significant difference in new ECF incidence, with VD0/ECF0 being the lowest and VD2m/ECF0 being the highest. CONCLUSION VD progression/new VD is much less common in elderly men than in elderly women. Vertebrae with VD had a higher risk of developing ECF.
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Affiliation(s)
- Y X J Wáng
- Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, SAR, China.
| | - N Che-Nordin
- Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, SAR, China
| | - M Deng
- Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, SAR, China
| | - J F Griffith
- Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, SAR, China
| | - J C S Leung
- JC Centre for Osteoporosis Care and Control, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, SAR, China
| | - A W L Kwok
- JC Centre for Osteoporosis Care and Control, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, SAR, China
| | - P C Leung
- JC Centre for Osteoporosis Care and Control, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, SAR, China
| | - T C Y Kwok
- JC Centre for Osteoporosis Care and Control, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, SAR, China
- Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, SAR, China
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