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Wang B, Zhang Z, Zhao J, Ma Y, Wang Y, Yin N, Song T. Spatiotemporal Evolution of Developing Palate in Mice. J Dent Res 2024:220345241232317. [PMID: 38619065 DOI: 10.1177/00220345241232317] [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] [Indexed: 04/16/2024] Open
Abstract
The intricate formation of the palate involves a series of complex events, yet its mechanistic basis remains uncertain. To explore major cell populations in the palate and their roles during development, we constructed a spatiotemporal transcription landscape of palatal cells. Palate samples from C57BL/6 J mice at embryonic days 12.5 (E12.5), 14.5 (E14.5), and 16.5 (E16.5) underwent single-cell RNA sequencing (scRNA-seq) to identify distinct cell subsets. In addition, spatial enhanced resolution omics-sequencing (stereo-seq) was used to characterize the spatial distribution of these subsets. Integrating scRNA-seq and stereo-seq with CellTrek annotated mesenchymal and epithelial cellular components of the palate during development. Furthermore, cellular communication networks between these cell subpopulations were analyzed to discover intercellular signaling during palate development. From the analysis of the middle palate, both mesenchymal and epithelial populations were spatially segregated into 3 domains. The middle palate mesenchymal subpopulations were associated with tooth formation, ossification, and tissue remodeling, with initial state cell populations located proximal to the dental lamina. The nasal epithelium of the palatal shelf exhibited richer humoral immune responses than the oral side. Specific enrichment of Tgfβ3 and Pthlh signals in the midline epithelial seam at E14.5 suggested a role in epithelial-mesenchymal transition. In summary, this study provides high-resolution transcriptomic information, contributing to a deeper mechanistic understanding of palate biology and pathophysiology.
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Affiliation(s)
- B Wang
- Center for Cleft Lip and Palate Treatment, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Z Zhang
- Center for Ear Reconstruction, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Zhao
- Center for Cleft Lip and Palate Treatment, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Ma
- Center for Cleft Lip and Palate Treatment, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Wang
- Center for Cleft Lip and Palate Treatment, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - N Yin
- Center for Cleft Lip and Palate Treatment, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - T Song
- Center for Cleft Lip and Palate Treatment, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Song T, Liu B. A novel vitrified cryopreservation approach with stem cell-laden hydrogel microcapsules. Cryo Letters 2024; 45:114-121. [PMID: 38557990] [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] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
BACKGROUND Stem cell-laden hydrogel microcapsules construction is important for a wide application in tissue engineering and cell-based medicine, such as building an ideal immune barrier. Challenges are emerging for effectively storing such microcapsules by cryopreservation, and a large proportion of research has been on the cryopreservation of single cells encapsulated into microcapsules without a core-shell structure. OBJECTIVE To achieve the effective cryopreservation of stem cell-laden hydrogel microcapsules with a core-shell structure. MATERIALS AND METHODS A novel core-shell alginate hydrogel encapsulation method was used to produce mesenchymal stem cell-laden microcapsules by microfluidic technique. RESULTS This microcapsule could inhibit ice formation to achieve vitreous cryopreservation with a low concentration (2 M) of penetrating cryoprotectants. CONCLUSION Cell laden hydrogel microcapsules may have the potential to be the basis of a new strategy of cell cryopreservation and applications. https://doi.org/10.54680/fr24210110212.
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Affiliation(s)
- T Song
- Institute of Biothermal Technology, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - B Liu
- Institute of Biothermal Technology, University of Shanghai for Science and Technology, Shanghai 200093, China.
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Wang BQ, Song T. [Research progress in molecular mechanism of palatal development]. Zhonghua Kou Qiang Yi Xue Za Zhi 2024; 59:110-115. [PMID: 38172071 DOI: 10.3760/cma.j.cn112144-20230718-00018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Cleft palate is one of the most common maxillofacial birth defects, which can occur alone or accompany with many known deformities. Palatal selves need to complete the process of vertical growth, elevation, adhesion and fusion in a specific time window of embryo development. Any abnormality in this process will lead to cleft palate. Although previous studies have identified many molecular networks that regulate the growth, location and fusion of palatal selves, there are still many unknown mechanisms for palatal development. The pathogenesis of cleft palate has not been clarified so far. In recent years, the molecular research on palate development has been deepened continuously. Here we summarize major recent advances and integrate the genes and molecular pathways with the cellular and morphogenetic processes of palatal shelf growth, patterning, elevation, adhesion, and fusion, in order to comprehensively understand the genotype-phenotype functional relationship and provide assistance in formulating effective prevention strategies for cleft palate disease.
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Affiliation(s)
- B Q Wang
- Center for Cleft Lip and Palate, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100144, China
| | - T Song
- Center for Cleft Lip and Palate, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100144, China
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Song T, Yao Y, Papoin J, Sherry B, Diamond B, Gu H, Blanc L, Zou YR. Host factor TIMP1 sustains long-lasting myeloid-biased hematopoiesis after severe infection. J Exp Med 2023; 220:e20230018. [PMID: 37851372 PMCID: PMC10585121 DOI: 10.1084/jem.20230018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 07/10/2023] [Accepted: 10/03/2023] [Indexed: 10/19/2023] Open
Abstract
Infection is able to promote innate immunity by enhancing a long-term myeloid output even after the inciting infectious agent has been cleared. However, the mechanisms underlying such a regulation are not fully understood. Using a mouse polymicrobial peritonitis (sepsis) model, we show that severe infection leads to increased, sustained myelopoiesis after the infection is resolved. In post-infection mice, the tissue inhibitor of metalloproteinases 1 (TIMP1) is constitutively upregulated. TIMP1 antagonizes the function of ADAM10, an essential cleavage enzyme for the activation of the Notch signaling pathway, which suppresses myelopoiesis. While TIMP1 is dispensable for myelopoiesis under the steady state, increased TIMP1 enhances myelopoiesis after infection. Thus, our data establish TIMP1 as a molecular reporter of past infection in the host, sustaining hyper myelopoiesis and serving as a potential therapeutic target for modulating HSPC cell fate.
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Affiliation(s)
- Tengfei Song
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Yonghong Yao
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Julien Papoin
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Barbara Sherry
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
- Department of Molecular Medicine, Zucker School of Medicine at Hofstra-Northwell, Hempstead, NY, USA
| | - Betty Diamond
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
- Department of Molecular Medicine, Zucker School of Medicine at Hofstra-Northwell, Hempstead, NY, USA
| | - Hua Gu
- Laboratory of Molecular Immunology, Institut de Recherches Cliniques de Montréal, Montréal, Canada
| | - Lionel Blanc
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
- Department of Molecular Medicine, Zucker School of Medicine at Hofstra-Northwell, Hempstead, NY, USA
| | - Yong-Rui Zou
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
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Li ZX, Liu XB, Li Y, Liang GH, Wang ZF, Zheng Y, Sun HB, Wang W, Song T, Xing WQ. [Application value of CT examination of lymph node short diameter in evaluating cardia-left gastric lymph node metastasis in thoracic esophageal squamous cell carcinoma]. Zhonghua Zhong Liu Za Zhi 2023; 45:962-966. [PMID: 37968082 DOI: 10.3760/cma.j.cn112152-20220313-00173] [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: 11/17/2023]
Abstract
Objective: To investigate the application value of computed tomography (CT) examination of lymph node short diameter in evaluating cardia-left gastric lymph node metastasis in thoracic esophageal squamous cell carcinoma (ESCC). Methods: A total of 477 patients with primary thoracic ESCC who underwent surgical treatment in the Affiliated Cancer Hospital of Zhengzhou University from January 2013 to December 2017 were collected. All of them underwent McKeown esophagectomy plus complete two-field or three-field lymph node dissection. Picture archiving and communication system were used to measure the largest cardia-left gastric lymph node short diameter in preoperative CT images. The postoperative pathological diagnosis results of cardia-left gastric lymph node were used as the gold standard. Receiver operating characteristic (ROC) curve was used to evaluate the efficacy of CT lymph node short diameter in detecting the metastasis of cardia-left gastric lymph node in thoracic ESCC, and determine the optimal cut-off value. Results: The median short diameter of the largest cardia-left gastric lymph node was 4.1 mm in 477 patients, and the largest cardia-left gastric lymph node short diameter was less than 3 mm in 155 cases (32.5%). Sixty-eight patients had cardia-left gastric lymph node metastases, of which 38 had paracardial node metastases and 41 had left gastric node metastases. The lymph node ratios of paracardial node and left gastric node were 4.0% (60/1 511) and 3.3% (62/1 887), respectively. ROC curve analysis showed that the area under the curve of CT lymph node short diameter for evaluating cardia-left gastric lymph node metastasis was 0.941 (95% CI: 0.904-0.977; P<0.05). The optimal cut-off value of CT examination of the cardia-left gastric lymph node short diameter was 6 mm, and the corresponding sensitivity, specificity and accuracy were 85.3%, 91.7%, and 90.8%, respectively. Conclusion: CT examination of lymph node short diameter can be a good evaluation of cardia-left gastric lymph node metastasis in thoracic ESCC, and the optimal cut-off value is 6 mm.
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Affiliation(s)
- Z X Li
- Department of Thoracic Surgery, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - X B Liu
- Department of Thoracic Surgery, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - Y Li
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - G H Liang
- Department of Thoracic Surgery, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - Z F Wang
- Department of Thoracic Surgery, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - Y Zheng
- Department of Thoracic Surgery, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - H B Sun
- Department of Thoracic Surgery, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - W Wang
- Department of Thoracic Surgery, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - T Song
- Department of Imaging, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - W Q Xing
- Department of Thoracic Surgery, the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
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Wu J, Hu M, Jiang H, Ma J, Xie C, Zhang Z, Zhou X, Zhao J, Tao Z, Meng Y, Cai Z, Song T, Zhang C, Gao R, Cai C, Song H, Gao Y, Lin T, Wang C, Zhou X. Endothelial Cell-Derived Lactate Triggers Bone Mesenchymal Stem Cell Histone Lactylation to Attenuate Osteoporosis. Adv Sci (Weinh) 2023; 10:e2301300. [PMID: 37752768 PMCID: PMC10625121 DOI: 10.1002/advs.202301300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 08/17/2023] [Indexed: 09/28/2023]
Abstract
Blood vessels play a role in osteogenesis and osteoporosis; however, the role of vascular metabolism in these processes remains unclear. The present study finds that ovariectomized mice exhibit reduced blood vessel density in the bone and reduced expression of the endothelial glycolytic regulator pyruvate kinase M2 (PKM2). Endothelial cell (EC)-specific deletion of Pkm2 impairs osteogenesis and worsens osteoporosis in mice. This is attributed to the impaired ability of bone mesenchymal stem cells (BMSCs) to differentiate into osteoblasts. Mechanistically, EC-specific deletion of Pkm2 reduces serum lactate levels secreted by ECs, which affect histone lactylation in BMSCs. Using joint CUT&Tag and RNA sequencing analyses, collagen type I alpha 2 chain (COL1A2), cartilage oligomeric matrix protein (COMP), ectonucleotide pyrophosphatase/phosphodiesterase 1 (ENPP1), and transcription factor 7 like 2 (TCF7L2) as osteogenic genes regulated by histone H3K18la lactylation are identified. PKM2 overexpression in ECs, lactate addition, and exercise restore the phenotype of endothelial PKM2-deficient mice. Furthermore, serum metabolomics indicate that patients with osteoporosis have relatively low lactate levels. Additionally, histone lactylation and related osteogenic genes of BMSCs are downregulated in patients with osteoporosis. In conclusion, glycolysis in ECs fuels BMSC differentiation into osteoblasts through histone lactylation, and exercise partially ameliorates osteoporosis by increasing serum lactate levels.
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Affiliation(s)
- Jinhui Wu
- Department of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003P. R. China
| | - Miao Hu
- Department of OrthopedicsGeneral Hospital of Southern Theatre Command of PLAGuangzhou510010P. R. China
| | - Heng Jiang
- Department of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003P. R. China
| | - Jun Ma
- Department of OrthopedicsShanghai General HospitalShanghai Jiao Tong University School of MedicineShanghai200080P. R. China
| | - Chong Xie
- Department of NeurologyRenji HospitalShanghai Jiaotong University School of MedicineShanghai200127P. R. China
| | - Zheng Zhang
- Department of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003P. R. China
| | - Xin Zhou
- Department of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003P. R. China
- Department of OrthopedicsShanghai General HospitalShanghai Jiao Tong University School of MedicineShanghai200080P. R. China
| | - Jianquan Zhao
- Department of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003P. R. China
| | - Zhengbo Tao
- Department of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003P. R. China
| | - Yichen Meng
- Department of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003P. R. China
| | - Zhuyun Cai
- Department of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003P. R. China
| | - Tengfei Song
- Department of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003P. R. China
| | - Chenglin Zhang
- Department of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003P. R. China
| | - Rui Gao
- Department of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003P. R. China
| | - Chang Cai
- Department of OphthalmologyChanghai HospitalShanghai200433P. R. China
| | - Hongyuan Song
- Department of OphthalmologyChanghai HospitalShanghai200433P. R. China
| | - Yang Gao
- Senior Department of OrthopedicsThe Fourth Medical Center of PLA General HospitalBeijing100048P. R. China
| | - Tao Lin
- Department of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003P. R. China
| | - Ce Wang
- Department of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003P. R. China
| | - Xuhui Zhou
- Department of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003P. R. China
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Ng A, Lovat F, Shih AJ, Ma Y, Pekarsky Y, DiCaro F, Crichton L, Sharma E, Yan XJ, Sun D, Song T, Zou YR, Will B, Croce CM, Chiorazzi N. Complete miRNA-15/16 loss in mice promotes hematopoietic progenitor expansion and a myeloid-biased hyperproliferative state. Proc Natl Acad Sci U S A 2023; 120:e2308658120. [PMID: 37844234 PMCID: PMC10614620 DOI: 10.1073/pnas.2308658120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 09/13/2023] [Indexed: 10/18/2023] Open
Abstract
Dysregulated apoptosis and proliferation are fundamental properties of cancer, and microRNAs (miRNA) are critical regulators of these processes. Loss of miR-15a/16-1 at chromosome 13q14 is the most common genomic aberration in chronic lymphocytic leukemia (CLL). Correspondingly, the deletion of either murine miR-15a/16-1 or miR-15b/16-2 locus in mice is linked to B cell lymphoproliferative malignancies. However, unexpectedly, when both miR-15/16 clusters are eliminated, most double knockout (DKO) mice develop acute myeloid leukemia (AML). Moreover, in patients with CLL, significantly reduced expression of miR-15a, miR-15b, and miR-16 associates with progression of myelodysplastic syndrome to AML, as well as blast crisis in chronic myeloid leukemia. Thus, the miR-15/16 clusters have a biological relevance for myeloid neoplasms. Here, we demonstrate that the myeloproliferative phenotype in DKO mice correlates with an increase of hematopoietic stem and progenitor cells (HSPC) early in life. Using single-cell transcriptomic analyses, we presented the molecular underpinning of increased myeloid output in the HSPC of DKO mice with gene signatures suggestive of dysregulated hematopoiesis, metabolic activities, and cell cycle stages. Functionally, we found that multipotent progenitors (MPP) of DKO mice have increased self-renewing capacities and give rise to significantly more progeny in the granulocytic compartment. Moreover, a unique transcriptomic signature of DKO MPP correlates with poor outcome in patients with AML. Together, these data point to a unique regulatory role for miR-15/16 during the early stages of hematopoiesis and to a potentially useful biomarker for the pathogenesis of myeloid neoplasms.
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Affiliation(s)
- Anita Ng
- Karches Center for Oncology Research, The Feinstein Institutes for Medical Research Northwell Health, Manhasset, NY11030
| | - Francesca Lovat
- Department of Cancer Biology and Genetics, The Ohio State University, Columbus, OH43210
| | - Andrew J. Shih
- Boas Center for Human Genetics and Genomics, The Feinstein Institutes for Medical Research Northwell Health, Manhasset, NY11030
| | - Yuhong Ma
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY10461
| | - Yuri Pekarsky
- Department of Cancer Biology and Genetics, The Ohio State University, Columbus, OH43210
| | - Frank DiCaro
- Karches Center for Oncology Research, The Feinstein Institutes for Medical Research Northwell Health, Manhasset, NY11030
| | - Lita Crichton
- Karches Center for Oncology Research, The Feinstein Institutes for Medical Research Northwell Health, Manhasset, NY11030
| | - Esha Sharma
- Karches Center for Oncology Research, The Feinstein Institutes for Medical Research Northwell Health, Manhasset, NY11030
| | - Xiao Jie Yan
- Karches Center for Oncology Research, The Feinstein Institutes for Medical Research Northwell Health, Manhasset, NY11030
| | - Daqian Sun
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY10461
| | - Tengfei Song
- The Center for Autoimmune, Musculoskeletal, and Hematopoietic Diseases, The Feinstein Institutes for Medical Research Northwell Health, Manhasset, NY11030
| | - Yong-Rui Zou
- The Center for Autoimmune, Musculoskeletal, and Hematopoietic Diseases, The Feinstein Institutes for Medical Research Northwell Health, Manhasset, NY11030
- Departments of Medicine and Molecular Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY11549
| | - Britta Will
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY10461
| | - Carlo M. Croce
- Department of Cancer Biology and Genetics, The Ohio State University, Columbus, OH43210
| | - Nicholas Chiorazzi
- Karches Center for Oncology Research, The Feinstein Institutes for Medical Research Northwell Health, Manhasset, NY11030
- Departments of Medicine and Molecular Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY11549
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Song T, Miljanic M, Yen A, Kwon J, Christie A, Garant A, Aguilera TA, Brugarolas J, Timmerman RD, Hannan R. Stereotactic Ablative Radiotherapy for the Treatment of Glandular Metastases from Renal Cell Carcinoma. Int J Radiat Oncol Biol Phys 2023; 117:e439. [PMID: 37785425 DOI: 10.1016/j.ijrobp.2023.06.1614] [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) Glandular metastases including pancreatic and adrenal sites of disease are associated with renal cell carcinoma (RCC) of indolent biology. Adrenal and pancreatic metastases may develop in isolation or involve other organs and are associated with prolonged survival. Glandular metastases can be treated with systemic therapy, stereotactic ablative radiotherapy (SAbR) or surgical resection and the optimal management of these patients is unknown. There is paucity of data on SAbR for RCC glandular metastases. We hypothesize that ablative doses of radiation therapy utilizing SAbR are associated with high rates of local control greater than 90%, with minimal or no acute grade 3 toxicities or higher with this approach. Here, we report local control (LC), progression-free survival (PFS), overall survival (OS) rates as well as toxicities related to SAbR for RCC metastases to the pancreatic and adrenal glands. MATERIALS/METHODS This IRB-approved, single-institution, retrospective study included patients with RCC metastases to the adrenal glands and pancreas treated with SAbR. Data on patient demographics, functional status, tumor characteristics, International Metastatic RCC Database Consortium (IMDC) risk category, local and systemic treatments, toxicities, and outcomes were collected and analyzed. RECIST 1.1 principals were utilized to determine LC rates and PFS. PFS was determined from the initiation of SAbR to progression (at SAbR-treated or other sites), or death. OS was defined from the start of SAbR to death. Two independent reviewers assessed these measures and analyzed patient electronic health records for toxicities using CTCAE v5 and relatedness scores. RESULTS A total of 50 RCC patients were included in this study with 36 adrenal and 20 pancreatic metastases treated with SAbR. Median dose fractionation used was 40 Gray delivered in 5 fractions. Sixteen patients (32%) were treatment naïve with oligometastatic disease, and thirty-four (68%) were oligo-progressive on systemic therapy with 1-3 prior lines of systemic therapy. For treated adrenal metastatic lesions at 1 year, patients demonstrated a 75.3% OS, 46.7% PFS, and LC of 93.3%. For treated pancreatic metastatic lesions at 1 year, patients demonstrated a 100% OS, 48.6% PFS, and LC of 100%. At 1 year, there was an OS of 82.2%, PFS of 48.2%, and LC of 95.9 % in the combined cohort. The percentage of patients experiencing an acute grade 2 or 3 toxicity attributed to adrenal or pancreatic gland SAbR was 7.4%. There were no acute grade >3 toxicities. The percentage of patients experiencing a late grade 2 or 3 toxicity was 9.3%. Median time to late adverse events was 37.4 months. CONCLUSION SAbR of RCC metastases to the pancreas and adrenal glands is feasible, safe and appears to be effective. Median PFS and OS in this cohort compared favorably to those reported in historical cohorts and is consistent with indolent disease.
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Affiliation(s)
- T Song
- University of Texas Southwestern Medical Center, Dallas, TX
| | - M Miljanic
- University of Texas Southwestern Medical Center, Dallas, TX
| | - A Yen
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX
| | - J Kwon
- University of Texas, Southwestern Medical Center, Dallas, TX
| | - A Christie
- University of Texas Southwestern Medical Center, Dallas, TX
| | - A Garant
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX
| | - T A Aguilera
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX
| | - J Brugarolas
- University of Texas Southwestern Medical Center, Dallas, TX
| | - R D Timmerman
- Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX
| | - R Hannan
- University of Texas Southwestern Medical Center, Dallas, TX
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Song T, Sun F, Liu S, Ye T. Percutaneous lordoplasty for the treatment of severe osteoporotic vertebral compression fractures with kyphosis. Front Neurol 2023; 14:1132919. [PMID: 37576011 PMCID: PMC10416795 DOI: 10.3389/fneur.2023.1132919] [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: 12/28/2022] [Accepted: 07/05/2023] [Indexed: 08/15/2023] Open
Abstract
Objective The study aimed to explore the safety and effectiveness of percutaneous lordoplasty (PLP) in the treatment of severe osteoporotic vertebral compression fracture (OVCF). Methods Included in this prospective study were patients with single-segment acute severe OVCF who were treated with PLP in our institution from July 2016 to October 2019. Patients' back pain and quality of life were assessed using the visual analog scale (VAS) and SF-36 scores. Lateral X-ray radiography of the spine was performed to measure the vertebral height, vertebral kyphotic angle, and segmental kyphotic angle, and to evaluate the outcome of fracture reduction and kyphotic correction. Intra-and postoperative complications were recorded. Results Of the 51 included patients, 47 patients were followed up for 12 months. The VAS score decreased from preoperative 7.33 ± 1.92 to postoperative 1.76 ± 0.85 at the 12th month (p < 0.05), and the SF-36 score increased from preoperative 79.50 ± 9.22 to postoperative 136.94 ± 6.39 at the 12th month (p < 0.05). During the 1-year follow-up period, the anterior height of the vertebral body increased significantly from preoperative 10.49 ± 1.93 mm to 19.33 ± 1.86 mm (p < 0.05); the posterior height of the vertebral body increased insignificantly from preoperative 22.23 ± 2.36 mm to 23.05 ± 1.86 mm (p > 0.05); the vertebral kyphotic angle decreased significantly from preoperative 18.33° ± 11.49° to 8.73° ± 1.21° (p < 0.05); and the segmental kyphotic angle decreased significantly from preoperative 24.48° ± 4.64° to 11.70° ± 1.34° (p < 0.05). During the 1-year follow-up period, there was no significant difference in the radiologic parameters, VAS scores, and SF-36 scores, between the 1st day and the 12th month of post-operation (P > 0.05). No nerve damage occurred in any of the cases. Intraoperative cement leakage occurred in six cases, and the fracture of the adjacent vertebral body occurred in one case. Conclusion PLP can well reduce the risk of fracture and achieve good kyphotic correction and may prove to be a safe, cost-effective and minimally invasive alternative option for the treatment of severe OVCF with kyphotic deformity.
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Affiliation(s)
- Tengfei Song
- Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Fan Sun
- Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, China
- Department of Orthopedics, The Fourth Affiliated Hospital of Nangjing Medical University, Nanjing, Jiangsu, China
| | - Shu Liu
- Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Tianwen Ye
- Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, China
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Kagan V, Rose R, Alund A, Song T. Va Ecmo Decannulation at Bedside with Manta Closure Device. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1047] [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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11
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Huddleston S, Hertz M, Loor G, Garcha P, Hartwig M, Snyder L, Siddique A, Strah H, Kukreja J, Song T, Jablonski R, Smith M, Walia R, Arjuna A, Lozonschi L, Patel K, Katlaps G, Nemeh H, Suarez E, Huang H, Langer N, Madsen J, Lee A, Dhillon G, MacArthur J, Keshavamurthy S, Nandavaram S, Daneshmand M, Neujahr D, Bush E, Joyce D, Ardehali A, Budev M, McCurry K. Impact of National OCS Lung Procurement & Management Program on Post-Transplant Survival - Real World Data from the Thoracic Organ Perfusion (TOP) Post-Approval Registry. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1012] [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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12
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Watanabe T, Nemoto A, Nguyen A, Grinstein J, Chung B, Smith B, Kalantari S, Sarswat N, Kim G, Pinney S, Onsager D, Song T, Salerno C, Jeevanandam V, Ota T. Impact on Non-Cardiac Surgery for Patients with Lvad Support. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1585] [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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13
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Loor G, Garcha P, Huddleston S, Hertz M, Hartwig M, Snyder L, Siddique A, Strah H, Kukreja J, Song T, Jablonski R, Smith M, Walia R, Arjuna A, Lozonschi L, Patel K, Katlaps G, Nemeh H, Suarez E, Huang H, Langer N, Madsen J, Lee A, Dhillon G, MacArthur J, Keshavamurthy S, Nandavaram S, Daneshmand M, Neujahr D, Bush E, Joyce D, Ardehali A, Budev M, McCurry K. Impact of OCS Lung Warm Perfusion Times on Post-Transplant Survival - "Real-World" Experience from Thoracic Organ Perfusion (TOP) Registry. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1014] [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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14
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Nemoto A, Belkin M, Sarswat N, Chung B, Nguyen A, Smith B, Kalantari S, Kim G, Grinstein J, Pinney S, Onsager D, Song T, Salerno C, Jeevanandam V, Ota T. Impact of Surgical Techniques on Survival and Hemodynamics after Orthotopic Heart Transplantation. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1535] [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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15
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Loor G, Garcha P, Huddleston S, Hertz M, Hartwig M, Snyder L, Siddique A, Strah H, Kukreja J, Song T, Jablonski R, Smith M, Walia R, Arjuna A, Lozonschi L, Patel K, Katlaps G, Nemeh H, Suarez E, Huang H, Langer N, Madsen J, Lee A, Dhillon G, MacArthur J, Keshavamurthy S, Nandavaram S, Daneshmand M, Neujahr D, Bush E, Joyce D, Ardehali A, Budev M, McCurry K. First Report of the Organ Care System (OCS) Thoracic Organ Perfusion (TOP) Post-Approval Registry. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.039] [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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16
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Wu Y, Lv K, Zheng B, Hao X, Lai W, Xia X, Yang G, Huang S, Luo Z, Yang G, Lv C, An Z, Peng W, Song T, Yuan Q. Development and validation of a clinical nomogram predicting detrusor underactivity via symptoms and noninvasive test parameters in men with benign prostatic hyperplasia. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00080-5] [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: 02/12/2023]
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17
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Gastol D, Marshall J, Cooper E, Mitchell C, Burnett D, Song T, Sommerville R, Middleton B, Crozier M, Smith R, Haig S, McElroy CR, van Dijk N, Croft P, Goodship V, Kendrick E. Reclaimed and Up-Cycled Cathodes for Lithium-Ion Batteries. Glob Chall 2022; 6:2200046. [PMID: 36532243 PMCID: PMC9749079 DOI: 10.1002/gch2.202200046] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 05/04/2022] [Indexed: 06/17/2023]
Abstract
As electric vehicles become more widely used, there is a higher demand for lithium-ion batteries (LIBs) and hence a greater incentive to find better ways to recycle these at their end-of-life (EOL). This work focuses on the process of reclamation and re-use of cathode material from LIBs. Black mass containing mixed LiMn2O4 and Ni0.8Co0.15Al0.05O2 from a Nissan Leaf pouch cell are recovered via two different recycling routes, shredding or disassembly. The waste material stream purity is compared for both processes, less aluminium and copper impurities are present in the disassembled waste stream. The reclaimed black mass is further treated to reclaim the transition metals in a salt solution, Ni, Mn, Co ratios are adjusted in order to synthesize an upcycled cathode, LiNi0.6Mn0.2Co0.2O2 via a co-precipitation method. The two reclamation processes (disassembly and shredding) are evaluated based on the purity of the reclaimed material, the performance of the remanufactured cell, and the energy required for the complete process. The electrochemical performance of recycled material is comparable to that of as-manufactured cathode material, indicating no detrimental effect of purified recycled transition metal content. This research represents an important step toward scalable approaches to the recycling of EOL cathode material in LIBs.
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Affiliation(s)
- Dominika Gastol
- School of Metallurgy and MaterialsUniversity of BirminghamBirminghamB15 2TTUK
| | | | | | - Claire Mitchell
- TFP Hydrogen ProductsUnits 5 & 6Merchants QuayPennygillam Industrial EstateLauncestonCornwallPL15 7QAUK
| | - David Burnett
- School of Metallurgy and MaterialsUniversity of BirminghamBirminghamB15 2TTUK
| | - Tengfei Song
- School of Metallurgy and MaterialsUniversity of BirminghamBirminghamB15 2TTUK
| | - Roberto Sommerville
- School of Metallurgy and MaterialsUniversity of BirminghamBirminghamB15 2TTUK
| | | | - Mickey Crozier
- MSolvOxonian ParkLangford LocksKidlingtonOxfordOX5 1FPUK
| | - Robert Smith
- MSolvOxonian ParkLangford LocksKidlingtonOxfordOX5 1FPUK
| | - Sam Haig
- RSBruce Metals and Machinery LtdMarch Street, SheffieldSouth YorkshireS9 5DQUK
| | - Con Robert McElroy
- Green Chemistry Centre of ExcellenceDepartment of ChemistryUniversity of YorkHeslingtonYorkYO10 5DDUK
| | - Nick van Dijk
- TFP Hydrogen ProductsUnits 5 & 6Merchants QuayPennygillam Industrial EstateLauncestonCornwallPL15 7QAUK
| | - Paul Croft
- ICoNiChemWidnes LtdMoss Bank RoadWidnesCheshireWA8 0RUUK
| | | | - Emma Kendrick
- School of Metallurgy and MaterialsUniversity of BirminghamBirminghamB15 2TTUK
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18
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Song T, Miljanic M, Christie A, Garant A, Aguilera T, Brugarolas J, Timmerman R, Hannan R. Stereotactic Ablative Radiotherapy for the Treatment of Pancreatic Metastases from Renal Cell Carcinoma. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1142] [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: 11/26/2022]
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19
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Sun H, Shen F, Bai X, Liu LX, Xiang BD, Song T, Chen M, Kuang M, Huang ZY, Li D, Wen T, Zhao HT, Zeng YY, Zhu X, Zhou J, Fan J. 92P Safety of liver resection following atezolizumab plus bevacizumab treatment in hepatocellular carcinoma (HCC) patients with macrovascular invasion: A pre-specified analysis of the TALENTop study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.128] [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: 12/05/2022] Open
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20
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Nishida H, Jeevanandam V, Salerno C, Song T, Onsager D, Nguyen A, Grinstein J, Chung B, Smith B, Kalantari S, Sarswat N, Kim G, Pinney S, Ota T. Concomitant left atrial appendage closure with left ventricular assist device surgery can reduce ischemic cerebrovascular accidents. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1009] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
It remains unknown if concomitant left atrial appendage closure (LAAC) at the time of left ventricular assist device (LVAD) surgery can reduce ischemic cerebrovascular accidents.
Purpose
The purpose of this study is to assess the impact of LAAC at LVAD surgery on the incidence of ischemic cerebrovascular accidents.
Methods
Between January 2012 and November 2021, 310 patients underwent LVAD surgery with HeartMate II or III. Out of 310 patients, 98 patients (31.6%) underwent concomitant LAAC. The cohort was divided into two groups: patients with LAAC (Group A, n=98) and without LAAC (Group B, n=212). To minimize device bias, LVAD surgery with HeartWare HVAD device was excluded. The ischemic cerebrovascular accident was defined as ischemic stroke, hemorrhagic stroke or transient ischemic attack. We reviewed early and long-term clinical outcomes. The incidence of ischemic cerebrovascular accidents was compared between two groups using the Kaplan-Meier method. We also investigated if LAAC was associated with ischemic cerebrovascular accidents by Cox proportional hazards analysis.
Results
There were no significant differences in baseline characteristics between two groups including age (Group A: 55.0±12.3 years old, Group B: 56.9±14.1 years old, p=0.26), preoperative CHADS2 score (Group A: 2.40±1.1, Group B: 2.58±1.1, p=0.19) and history of atrial fibrillation (Group A: 42.9%, Group B: 42.5%, p=0.95). In-hospital mortality was not significantly different between the two groups (Group A: 7.1%, Group B: 12.3%, p=0.16). In terms of postoperative complications, there were no significant differences between two groups in requiring extracorporeal membrane oxygenation, re-exploration for bleeding and newly required hemodialysis. Median follow up period was 474 days. Thirty-five patients (11.2%) developed ischemic cerebrovascular accidents (5 patients in Group A and 30 patients in Group B). The rate of freedom from ischemic cerebrovascular accidents in Group A (94.1% at 500 days and 94.1% at 1500 days) was significantly higher than that in Group B (88.2% at 500 days and 77.4% at 1500 days; log rank=0.024). In a Cox proportional hazards regression analysis including LAAC, age, history of atrial fibrillation, diabetes mellitus and Heartmate 3 device implantation, LAAC was associated with reducing the incidence of ischemic cerebrovascular accidents (hazard ratio 0.37, 95% CI 0.13–0.89, p=0.02).
Conclusion
Concomitant LAAC at the time of LVAD surgery can reduce ischemic cerebrovascular accidents without increasing perioperative mortality and complications.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- H Nishida
- University of Chicago Medicine , Chicago , United States of America
| | - V Jeevanandam
- University of Chicago Medicine , Chicago , United States of America
| | - C Salerno
- University of Chicago Medicine , Chicago , United States of America
| | - T Song
- University of Chicago Medicine , Chicago , United States of America
| | - D Onsager
- University of Chicago Medicine , Chicago , United States of America
| | - A Nguyen
- University of Chicago Medicine , Chicago , United States of America
| | - J Grinstein
- University of Chicago Medicine , Chicago , United States of America
| | - B Chung
- University of Chicago Medicine , Chicago , United States of America
| | - B Smith
- University of Chicago Medicine , Chicago , United States of America
| | - S Kalantari
- University of Chicago Medicine , Chicago , United States of America
| | - N Sarswat
- University of Chicago Medicine , Chicago , United States of America
| | - G Kim
- University of Chicago Medicine , Chicago , United States of America
| | - S Pinney
- University of Chicago Medicine , Chicago , United States of America
| | - T Ota
- University of Chicago Medicine , Chicago , United States of America
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21
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Liang J, Yu F, Zhu J, Song T. [Impact of multi-leaf collimator positioning accuracy on quality control of volumetric modulation arc therapy plan for cervical cancer treated with Elekta linear accelerator]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:1089-1094. [PMID: 35869775 DOI: 10.12122/j.issn.1673-4254.2022.07.19] [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] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the influence of positioning accuracy of the multi-leaf collimators (MLC) on the passing rate of the plan dose verification for volumetric modulation arc therapy (VMAT) of cervical cancer using an Elekta linear accelerator. METHODS The dose distributions were measured using Sun Nuclear's Mapcheck and Arccheck semiconductors matrix before and after MLC calibration in30 cervical cancer patients undergoing VMAT. Dosimetric comparisons were performed with 2D and 3D gamma passing rates of 3%, 3 mm and 2%, and 2 mm. The 3D gamma distribution was reconstructed with respect to the patient's anatomy using 3DVH software to evaluate the possible influence of MLC positioning accuracy. RESULTS Before and after MLC calibration, the gamma passing rates of Mapcheck were (88.80±1.81)% and (99.25 ± 0.53)% under 3% and 3 mm standard, respectively, with an average increase of 10.45%. The corresponding gamma passing rates of Arccheck were (87.61±1.98)% and (98.13±0.99)%, respectively, with an average increase of 10.52%. The gamma passing rates of 3DVH were (89.87±2.28)% and (98.3±1.15)%, respectively, with an average increase of 8.43%. CONCLUSION The MLC positioning accuracy is one of the main factors influencing dosimetric accuracy of VMAT for cervical cancer. The application of Autocal software facilitates MLC calibration and improves the accuracy and safety of VMAT delivery for cervical cancer.
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Affiliation(s)
- J Liang
- School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China.,State Key Laboratory of Oncology in South China//Department of Radiotherapy, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - F Yu
- State Key Laboratory of Oncology in South China//Department of Radiotherapy, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - J Zhu
- State Key Laboratory of Oncology in South China//Department of Radiotherapy, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - T Song
- School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
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22
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Song T, Chen L, Gastol D, Dong B, Marco JF, Berry F, Slater P, Reed D, Kendrick E. High-Voltage Stabilization of O3-Type Layered Oxide for Sodium-Ion Batteries by Simultaneous Tin Dual Modification. Chem Mater 2022; 34:4153-4165. [PMID: 35573110 PMCID: PMC9097156 DOI: 10.1021/acs.chemmater.2c00522] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 04/15/2022] [Indexed: 06/15/2023]
Abstract
O3-type layered oxide materials are considered to be a highly suitable cathode for sodium-ion batteries (NIBs) due to their appreciable specific capacity and energy density. However, rapid capacity fading caused by serious structural changes and interfacial degradation hampers their use. A novel Sn-modified O3-type layered NaNi1/3Fe1/3Mn1/3O2 cathode is presented, with improved high-voltage stability through simultaneous bulk Sn doping and surface coating in a scalable one-step process. The bulk substitution of Sn4+ stabilizes the crystal structure by alleviating the irreversible phase transition and lattice structure degradation and increases the observed average voltage. In the meantime, the nanolayer Sn/Na/O composite on the surface effectively inhibits surface parasitic reactions and improves the interfacial stability during cycling. A series of Sn-modified materials are reported. An 8%-Sn-modified NaNi1/3Fe1/3Mn1/3O2 cathode exhibits a doubling in capacity retention increase after 150 cycles in the wide voltage range of 2.0-4.1 V vs Na/Na+ compared to none, and 81% capacity retention is observed after 200 cycles in a full cell vs hard carbon. This work offers a facile process to simultaneously stabilize the bulk structure and interface for the O3-type layered cathodes for sodium-ion batteries and raises the possibility of similar effective strategies to be employed for other energy storage materials.
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Affiliation(s)
- Tengfei Song
- School
of Metallurgy and Materials, University
of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.
| | - Lin Chen
- School
of Metallurgy and Materials, University
of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.
| | - Dominika Gastol
- School
of Metallurgy and Materials, University
of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.
- The
Faraday Institution, Harwell Science and Innovation Campus, Didcot OX11 0RA, U.K.
| | - Bo Dong
- School
of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.
- The
Faraday Institution, Harwell Science and Innovation Campus, Didcot OX11 0RA, U.K.
| | - José F. Marco
- Instituto
de Química Física ″Rocasolano″, CSIC, Serrano 119, Madrid 28006, Spain
| | - Frank Berry
- School
of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.
| | - Peter Slater
- School
of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.
- The
Faraday Institution, Harwell Science and Innovation Campus, Didcot OX11 0RA, U.K.
| | - Daniel Reed
- School
of Metallurgy and Materials, University
of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.
- The
Faraday Institution, Harwell Science and Innovation Campus, Didcot OX11 0RA, U.K.
| | - Emma Kendrick
- School
of Metallurgy and Materials, University
of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.
- The
Faraday Institution, Harwell Science and Innovation Campus, Didcot OX11 0RA, U.K.
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23
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Zhou Y, Liang WJ, Chen ZH, Liu T, Song T, Chen SW, Wang P, Li JL, Lan YH, Cheng MJ, Huang JX, Niu JW, Xiao JP, Hu JX, Lin LF, Huang Q, Deng AP, Tan XH, Kang M, Chen GM, Dong MR, Zhong HJ, Ma W. [Course of disease and related epidemiological parameters of COVID-19: a prospective study based on contact tracing cohort]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:474-478. [PMID: 35488546 DOI: 10.3760/cma.j.cn112150-20220107-00025] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To analyze the course of disease and epidemiological parameters of COVID-19 and provide evidence for making prevention and control strategies. Methods: To display the distribution of course of disease of the infectors who had close contacts with COVID-19 cases from January 1 to March 15, 2020 in Guangdong Provincial, the models of Lognormal, Weibull and gamma distribution were applied. A descriptive analysis was conducted on the basic characteristics and epidemiological parameters of course of disease. Results: In total, 515 of 11 580 close contacts were infected, with an attack rate about 4.4%, including 449 confirmed cases and 66 asymptomatic cases. Lognormal distribution was fitting best for latent period, incubation period, pre-symptomatic infection period of confirmed cases and infection period of asymptomatic cases; Gamma distribution was fitting best for infectious period and clinical symptom period of confirmed cases; Weibull distribution was fitting best for latent period of asymptomatic cases. The latent period, incubation period, pre-symptomatic infection period, infectious period and clinical symptoms period of confirmed cases were 4.50 (95%CI:3.86-5.13) days, 5.12 (95%CI:4.63-5.62) days, 0.87 (95%CI:0.67-1.07) days, 11.89 (95%CI:9.81-13.98) days and 22.00 (95%CI:21.24-22.77) days, respectively. The latent period and infectious period of asymptomatic cases were 8.88 (95%CI:6.89-10.86) days and 6.18 (95%CI:1.89-10.47) days, respectively. Conclusion: The estimated course of COVID-19 and related epidemiological parameters are similar to the existing data.
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Affiliation(s)
- Y Zhou
- School of Public Health, Southern Medical University, Guangzhou 510515, China Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - W J Liang
- Institute of Immunization Programme, Guangdong Provincial Center for Disease Control and Prevention; Guangzhou 511430, China
| | - Z H Chen
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - T Liu
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - T Song
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - S W Chen
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - P Wang
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - J L Li
- Institute of Immunization Programme, Guangdong Provincial Center for Disease Control and Prevention; Guangzhou 511430, China
| | - Y H Lan
- Institute of Immunization Programme, Guangdong Provincial Center for Disease Control and Prevention; Guangzhou 511430, China
| | - M J Cheng
- Institute of Disinfection and Vector Control, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - J X Huang
- Institute of Environment and School Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - J W Niu
- Institute of Environment and School Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - J P Xiao
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - J X Hu
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - L F Lin
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - Q Huang
- Institute of Nutrition and Food Safety, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - A P Deng
- Institute of Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - X H Tan
- Institute of Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - M Kang
- Institute of Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - G M Chen
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - M R Dong
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - H J Zhong
- Public Health Emergency Preparedness and Response Division, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - Wenjun Ma
- School of Public Health, Southern Medical University, Guangzhou 510515, China Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
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Sanchez P, Chan E, Davis R, Hartwig M, Machuca T, Whitson B, Daneshmand M, Ovidio FD, DCunha J, Weyant M, Jessen M, Bermudez C, Mulligan M, Wozniak T, Lynch W, Nemeh H, Caldeira C, Song T, Kreisel D, Camp P, Ramzy D, Griffith B, Cantu E. Normothermic Ex Vivo Lung Perfusion (Novel) as an Assessment of Extended Criteria Donor Lungs: A Prospective Multi-Center Clinical Trial. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.092] [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: 11/30/2022] Open
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25
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Li Z, Hu K, Cruz J, Hoang R, Siddiqi U, Rodgers D, Belkin M, Hibino N, Song T, Jeevanandam V, Onsager D. Effects of Ischemic Time on Survival After Cardiac Transplantation in a Contemporary Cohort. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1762] [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: 11/29/2022] Open
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26
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Li Z, Siddiqi U, Rasheed N, Cruz J, Hoang R, Hu K, Rodgers D, Onsager D, Song T, Jeevanandam V, Hibino N. Predicted Heart Mass is Not the Optimal Metric for Size Matching in Pediatric Heart Transplantation. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.404] [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: 10/18/2022] Open
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27
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Shu HF, Wang KY, Liu SL, Zhang M, Song T. [Progress in prevention and control of Nipah virus disease]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:286-291. [PMID: 35184498 DOI: 10.3760/cma.j.cn112338-20210706-00529] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Nipah virus disease (NVD) is a newly emerged zoonosis with a case fatality rate of 40%-75%. NVD is a severe threat to human health and the development of livestock farming. NVD has become one of the emerging infectious diseases with great concern globally during more than 20 years. Nipah virus (NiV) is a pathogen for NVD, the natural host of which is Fruit bats of the Pteropodidae family. The clinical spectrum of NiV infection is broad, including asymptomatic infection, acute respiratory infection, fatal encephalitis, and even death. Since NiV was first identified in Malaysia in 1999, it has been prevalent mainly in Southeast Asia and South Asia. NiV is primarily transmitted to humans through bat-pig-human, contaminated food. Currently, there are no specific therapeutic drugs and vaccines for NVD. Although there are no cases of NVD reported in China, which has close personnel and trade exchanges with major NVD-endemic countries, and NiV antibody has also been detected in relevant bats. There is a potential risk of importing NVD and domestic outbreaks in the future in this country. This paper provides a systematic review of the research progress in the prevention and control of NVD etiology, epidemiology, clinical manifestations and laboratory diagnosis to help relevant staff to understand NVD more comprehensively and systematically.
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Affiliation(s)
- H F Shu
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510315, China
| | - K Y Wang
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510315, China
| | - S L Liu
- Department of Communicable Disease Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - M Zhang
- Institute for Communicable Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - T Song
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
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Liu J, Wang Y, Li H, Wu D, Song T, Yin N. Vascular Anatomy of the Velopharyngeal Muscles and its Clinical Implications: A Fresh Cadaveric Study Based on Micro-computed Tomography. Clin Anat 2022; 35:492-500. [PMID: 35015325 DOI: 10.1002/ca.23832] [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: 11/04/2021] [Revised: 12/30/2021] [Accepted: 01/01/2022] [Indexed: 11/09/2022]
Abstract
INTRODUCTION Poor speech improvement after levator veli palatini (LVP) reconstruction may be related to intraoperative vascular injury. We aimed to examine the vascular anatomy of the velopharyngeal muscles to provide a guide for arterial protection in cleft palate repair. MATERIALS AND METHODS Fresh adult cadaveric heads were injected with gelatin/lead oxide. The velopharyngeal specimens were stained with iodine and scanned using micro-computed tomography. Three-dimensional reconstruction models were obtained using a computer-aided design software. RESULTS The ascending palatine artery (APaA), especially the posterior branch, is the main artery supplying the velopharyngeal muscles. The posterior branch of the APaA reaches the dorsal part of the musculus uvulae in the posterior one third of the soft palate (SP) and lies 1.75 mm (standard deviation, 0.06) under the nasal mucosa; the anterior branch penetrates the anterolateral side of the LVP to reach the anterior one third of the SP and lies 7.09 mm (0.03) under the oral mucosa. The posterior APaA, anterior ApaA, and ApaA trunk had mean diameters of 0.41 mm (0.04), 0.46 mm (0.06), and 0.65 mm (0.04) at 0.5 cm, 1 cm, and 1.5 cm distance from the palatal midline, respectively.. CONCLUSION To minimize vascular injury, mobilization of muscles during intravelar veloplasty should be performed within a distance of 1 cm from the palatal midline, and dissection of the oral submucosa should be reduced in the anterior one third of the SP, while wide dissection of the nasal submucosal should be avoided in the posterior one third of the SP. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- J Liu
- Cleft Lip and Palate Department, Plastic Surgery Hospital, Plastic Surgery Hospital and Chinese Academy of Medical Science, Beijing, China
| | - Y Wang
- Cleft Lip and Palate Department, Plastic Surgery Hospital, Plastic Surgery Hospital and Chinese Academy of Medical Science, Beijing, China
| | - H Li
- Cleft Lip and Palate Department, Plastic Surgery Hospital, Plastic Surgery Hospital and Chinese Academy of Medical Science, Beijing, China
| | - D Wu
- Cleft Lip and Palate Department, Plastic Surgery Hospital, Plastic Surgery Hospital and Chinese Academy of Medical Science, Beijing, China
| | - T Song
- Cleft Lip and Palate Department, Plastic Surgery Hospital, Plastic Surgery Hospital and Chinese Academy of Medical Science, Beijing, China
| | - N Yin
- Cleft Lip and Palate Department, Plastic Surgery Hospital, Plastic Surgery Hospital and Chinese Academy of Medical Science, Beijing, China
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Tan XH, Kang M, Deng AP, Li BS, Luo M, Yi Y, Zhuang YL, Zhang YT, Song T. [Analysis on characteristics and influencing factors of COVID-19 confirmed cases with viral nucleic acid re-positive after discharge in Guangdong Province]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:49-55. [PMID: 35092991 DOI: 10.3760/cma.j.cn112150-20211108-01034] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To analyze the epidemiological characteristics and influencing factors of COVID-19 confirmed cases with viral nucleic acid re-positive in anal and/or throat swabs after discharge during the domestic imported epidemic stage in Guangdong Province in early 2020. Methods: The COVID-19 confirmed cases with the onset time before March 1, 2020 in Guangdong Province were collected to analyze the demographic data, epidemiological characteristics, and specimen collection and testing data after discharge. Logistic regression model was used for influencing factors analysis of re-positive cases. Results: A total of 1 286 COVID-19 confirmed cases were included, the M(Q1,Q3) of age was 44(32,58)years, 617 cases were male, 224 cases were re-positive in anal and/or throat swabs with the re-positive rate 17.42%. The M(Q1,Q3) of age of re-positive cases was 35(23, 50) years, which was younger than that of re-negative cases age was those 46(33, 59) years (P<0.001). With the increase of age, re-positive rate decreased (χ2trend=52.73, P<0.001). 85.27% (191/224) of re-positive cases were found in 14 d after discharge, the duration time of re-positive status was 13(7, 24) d, and 81.69% (183/224) of re-positive cases were re-tested negative in 28 d after re-positive date. No fever and other symptoms had been observed among re-positive cases during the whole follow-up. No secondary infectious cases had been found among close contacts after 14 d of centralized isolation and sampling screening. Univariate logistic regression model analysis revealed that the influencing factors of the re-positive cases included age, occupation, clusters, clinical types, and admission time. Multivariate logistic regression model analysis revealed that age was an independent risk factor. Conclusions: SARS-CoV-2 viral nucleic acid re-positive is found in COVID-19 confirmed cases after discharge in Guangdong Province. Most re-positive cases are confirmed among 14 d after discharge and re-test to negative among 28 d after re-positive date. Age is an risk factor for re-positive cases after discharge.
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Affiliation(s)
- X H Tan
- Institute of Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - M Kang
- Institute of Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - A P Deng
- Institute of Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - B S Li
- Institute of Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - M Luo
- Institute of Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - Y Yi
- Institute of Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - Y L Zhuang
- Institute of Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - Y T Zhang
- Institute of Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - T Song
- Institute of Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
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Zhang Z, Liu H, Song T, Zhang Q, Yang L, Bi K. One dimensional analytical model considering end effects for analysis of electromagnetic pressure characteristics of annular linear induction electromagnetic pump. ANN NUCL ENERGY 2022. [DOI: 10.1016/j.anucene.2021.108766] [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: 11/01/2022]
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Smith JL, Tran N, Song T, Liang D, Qian M. Robust bulk micro-nano hierarchical copper structures possessing exceptional bactericidal efficacy. Biomaterials 2021; 280:121271. [PMID: 34864450 DOI: 10.1016/j.biomaterials.2021.121271] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 11/24/2020] [Revised: 11/01/2021] [Accepted: 11/22/2021] [Indexed: 12/29/2022]
Abstract
Conventional copper (Cu) metal surfaces are well recognized for their bactericidal properties. However, their slow bacteria-killing potency has historically excluded them as a rapid bactericidal material. We report the development of a robust bulk superhydrophilic micro-nano hierarchical Cu structure that possesses exceptional bactericidal efficacy. It resulted in a 4.41 log10 reduction (>99.99%) of the deadly Staphylococcus aureus (S. aureus) bacteria within 2 min vs. a 1.49 log10 reduction (96.75%) after 240 min on common Cu surfaces. The adhered cells exhibited extensive blebbing, loss of structural integrity and leakage of vital intracellular material, demonstrating the rapid efficacy of the micro-nano Cu structure in destructing bacteria membrane integrity. The mechanism was attributed to the synergistic degradation of the cell envelope through enhanced release and therefore uptake of the cytotoxic Cu ions and the adhesion-driven mechanical strain due to its rapid ultimate superhydrophilicity (contact angle drops to 0° in 0.18 s). The scalable fabrication of this micro-nano Cu structure was enabled by integrating bespoke precursor alloy design with microstructure preconditioning for dealloying and demonstrated on 2000 mm2 Cu surfaces. This development paves the way to the practical exploitation of Cu as a low-cost antibiotic-free fast bactericidal material.
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Affiliation(s)
- J L Smith
- RMIT University, School of Engineering, Melbourne, Victoria, 3000, Australia; CSIRO, Manufacturing, Clayton, Victoria, 3168, Australia
| | - N Tran
- RMIT University, School of Science, Melbourne, Victoria, 3000, Australia
| | - T Song
- RMIT University, School of Engineering, Melbourne, Victoria, 3000, Australia
| | - D Liang
- CSIRO, Manufacturing, Clayton, Victoria, 3168, Australia
| | - M Qian
- RMIT University, School of Engineering, Melbourne, Victoria, 3000, Australia.
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Luo X, Yang C, Li R, Wang H, Lu H, Song T, Ma H, Li D, Gebert A, Li Y. Effect of silicon content on the microstructure evolution, mechanical properties, and biocompatibility of β-type TiNbZrTa alloys fabricated by laser powder bed fusion. Materials Science and Engineering: C 2021; 133:112625. [DOI: 10.1016/j.msec.2021.112625] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 12/04/2021] [Accepted: 12/17/2021] [Indexed: 10/19/2022]
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Liu Y, Wang QS, Wan CF, Wang KP, Song T. [Clinical efficacy of spinal cord stimulation for the patients with diabetic foot]. Zhonghua Yi Xue Za Zhi 2021; 101:3559-3563. [PMID: 34808748 DOI: 10.3760/cma.j.cn112137-20210729-01685] [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: 11/05/2022]
Abstract
Objective: To observe the clinical efficacy of spinal cord stimulation (SCS) in the treatment of diabetic foot (DF). Methods: Sixteen patients who were diagnosed with DF and treated with SCS from the Department of Pain Medicine of the First Affiliated Hospital, China Medical University from October 2015 to October 2018 were retrospectively analyzed. Visual analogue scale (VAS), 36-item short form health survey (SF-36), transcutaneous oxygen partial pressure (TcPO2) and skin temperature of lower limbs were compared before and after treatment, and the complications were recorded. Results: Among the 16 patients, 14 were equipped with implantable pulse generator (IPG). The VAS scores decreased significantly from 7.5±1.2 before treatment to 2.6±0.8, 2.0±0.7, 1.6±0.6, 1.0±0.9, 0.9±0.9 at 1 day, 1 week, 3 months, 6 months and 12 months after electrode implantation respectively (all P<0.05). At 12 months after treatment, the parameters of SF-36 were significantly different from those before treatment (all P<0.05). The TcPO2 was (23±5) mmHg before treatment and (38±6) mmHg at 1 week after treatment, with a statistical difference (P<0.05), and the temperature of lower limbs increased significantly (P<0.05). No serious complications were observed in all patients. Conclusion: SCS can relieve the pain of patients with DF, improve the microcirculation and blood supply of lower limbs, and thus promote the quality of life, with rare serious complications.
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Affiliation(s)
- Y Liu
- Department of Pain Medicine, the First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Q S Wang
- Department of Pain Medicine, the First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - C F Wan
- Department of Pain Medicine, the First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - K P Wang
- Department of Pain Medicine, the First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - T Song
- Department of Pain Medicine, the First Affiliated Hospital of China Medical University, Shenyang 110001, China
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Yu ZR, Song T, Zhang WT, Cong F, Tian XN, Fan JZ, Liu YF. [Observation on the curative effect of fibula transverse transport technique in the treatment of diabetic foot ulcer]. Zhonghua Yi Xue Za Zhi 2021; 101:3248-3252. [PMID: 34689539 DOI: 10.3760/cma.j.cn112137-20210418-00931] [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: 11/05/2022]
Abstract
To investigate the clinical effect of fibula transverse transport technique in the treatment of diabetic foot ulcer. Nine patients (7 males and 2 females) with diabetic foot ulcer were treated with fibula transverse transport technique from September 2017 to September 2020. The mean age was (55±9) years (ranged from 43 to 66 years). In terms of Wagner classification, 2 cases were in grade 2, 5 cases were in grade 3, and the other 2 cases were in grade 4. All of the cases involved ischemic ulcers or ischemic-nerve ulcers. The transcutaneous oxygen pressure (TcPO2) of the dorsal foot of the affected limb was measured, with the ulcer healing and TcPO2 changes recorded at follow-up. All the 9 patients were followed up for (23±12) months (3 to 38 months). It was found that all patients with foot ulcers were cured within (4.2±1.9) months (2 to 8 months), and all the patients obtained limb salvage. Besides, there was no serious complications occurred, such as skin necrosis and needle tract infection. Before the operation, the TcPO2 of the affected foot was (28.6±3.8) mmHg(1 mmHg=0.133 kPa), while it was (35.0±5.6) mmHg three months after operation (P<0.05). The technique of fibula transverse transport can effectively improve the microcirculation function of diabetic foot, and it can promote the healing of the ulcer with few complications.
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Affiliation(s)
- Z R Yu
- Department of Bone Microsurgery, Hong Hui Hospital, Xi'an Jiaotong University, Xi'an 710054, China
| | - T Song
- Department of Bone Microsurgery, Hong Hui Hospital, Xi'an Jiaotong University, Xi'an 710054, China
| | - W T Zhang
- Department of Bone Microsurgery, Hong Hui Hospital, Xi'an Jiaotong University, Xi'an 710054, China
| | - F Cong
- Department of Bone Microsurgery, Hong Hui Hospital, Xi'an Jiaotong University, Xi'an 710054, China
| | - X N Tian
- Department of Bone Microsurgery, Hong Hui Hospital, Xi'an Jiaotong University, Xi'an 710054, China
| | - J Z Fan
- Department of Bone Microsurgery, Hong Hui Hospital, Xi'an Jiaotong University, Xi'an 710054, China
| | - Y F Liu
- Department of Bone Microsurgery, Hong Hui Hospital, Xi'an Jiaotong University, Xi'an 710054, China
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Guo B, Peng Y, Gu Y, Zhong Y, Su C, Liu L, Chai D, Song T, Zhao N, Yan X, Xu T. Resveratrol pretreatment mitigates LPS-induced acute lung injury by regulating conventional dendritic cells' maturation and function. Open Life Sci 2021; 16:1064-1081. [PMID: 34676301 PMCID: PMC8483064 DOI: 10.1515/biol-2021-0110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 06/15/2021] [Revised: 08/10/2021] [Accepted: 08/16/2021] [Indexed: 11/20/2022] Open
Abstract
Acute lung injury (ALI)/acute respiratory distress syndrome (ARDS) is a severe syndrome lacking efficient therapy and resulting in high morbidity and mortality. Although resveratrol (RES), a natural phytoalexin, has been reported to protect the ALI by suppressing the inflammatory response, the detailed mechanism of how RES affected the immune system is poorly studied. Pulmonary conventional dendritic cells (cDCs) are critically involved in the pathogenesis of inflammatory lung diseases including ALI. In this study, we aimed to investigate the protective role of RES via pulmonary cDCs in lipopolysaccharide (LPS)-induced ALI mice. Murine ALI model was established by intratracheally challenging with 5 mg/kg LPS. We found that RES pretreatment could mitigate LPS-induced ALI. Additionally, proinflammatory-skewed cytokines decreased whereas anti-inflammatory-related cytokines increased in bronchoalveolar lavage fluid by RES pretreatment. Mechanistically, RES regulated pulmonary cDCs’ maturation and function, exhibiting lower level of CD80, CD86, major histocompatibility complex (MHC) II expression, and IL-10 secretion in ALI mice. Furthermore, RES modulated the balance between proinflammation and anti-inflammation of cDCs. Moreover, in vitro RES pretreatment regulated the maturation and function of bone marrow derived dendritic cells (BMDCs). Finally, the adoptive transfer of RES-pretreated BMDCs enhanced recovery of ALI. Thus, these data might further extend our understanding of a protective role of RES in regulating pulmonary cDCs against ALI.
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Affiliation(s)
- Bingnan Guo
- Jiangsu Institute of Health Emergency, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China.,Department of Emergency Medicine, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221000, China
| | - Yigen Peng
- Department of Emergency Medicine, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, Jiangsu 211100, China
| | - Yuting Gu
- Jiangsu Institute of Health Emergency, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China.,Department of Emergency Medicine, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221000, China
| | - Yi Zhong
- Jiangsu Institute of Health Emergency, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China.,Department of Emergency Medicine, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221000, China
| | - Chenglei Su
- Jiangsu Institute of Health Emergency, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China.,Department of Emergency Medicine, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221000, China
| | - Lin Liu
- Jiangsu Institute of Health Emergency, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China.,Department of Emergency Medicine, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221000, China
| | - Dafei Chai
- Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Tengfei Song
- The Feinstein Institute for Medical Research, Manhasset, NY 11030, New York, United States
| | - Ningjun Zhao
- Jiangsu Institute of Health Emergency, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China.,Department of Emergency Medicine, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221000, China
| | - Xianliang Yan
- Jiangsu Institute of Health Emergency, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China.,Department of Emergency Medicine, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221000, China
| | - Tie Xu
- Jiangsu Institute of Health Emergency, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China.,Department of Emergency Medicine, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221000, China.,Department of Emergency Medicine, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, Jiangsu 211100, China
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Li Y, Wang L, Zheng W, Zong Y, Qi L, Cui Z, Zhang T, Song T. A Novel Bi-Hemispheric Discrepancy Model for EEG Emotion Recognition. IEEE Trans Cogn Dev Syst 2021. [DOI: 10.1109/tcds.2020.2999337] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Bole I, Rodgers D, Smith B, Nguyen A, Chung B, Kalantari S, Sarswat N, Kim G, Song T, Ota T, Jeevanandam V, Kruse E, Kordeck C, Kramer C, Pinney S, Grinstein J. Simultaneous Multi-Vascular Bed Imaging in a Patient Supported by a Continuous-Flow LVAD. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.2115] [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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38
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Miller T, Belkin M, Siddiqi U, Rodgers D, Kanelidis A, Uriel N, Song T, Ota T, Kalantari S, Sarswat N, Nguyen A, Chung B, Kim G, Smith B, Jeevanandam V, Pinney S, Grinstein J. Cardiac Power Output and Cardiac Power Efficiency Show Prognostic Value in LVAD Patients. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1173] [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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Johnson B, Bucio J, Jeevanandam V, Song T, Wool G. Waste Not, Want Not: Decreasing Wastage through the Utilization of Thermal Controlled Technology with Ex Vivo Lung Perfusion. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1074] [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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Belkin M, Shah A, Nathan S, Kalathiya R, Song T, Ota T, Jeevanandam V, Nguyen A, Chung B, Smith B, Kalantari S, Sarswat N, Kim G, Pinney S, Grinstein J. Performing under Pressure: Invasive Hemodynamics to Diagnose and Guide Treatment of LVAD Outflow Graft Stenosis. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.2116] [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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Kanelidis A, Miller T, Belkin M, Siddiqi U, Rogers D, Uriel N, Song T, Ota T, Kalantari S, Sarswat N, Nguyen A, Chung B, Kim G, Smith B, Jeevanandam V, Pinney S, Grinstein J. Low Left Ventricular Stroke Work Index is Associated with a Poor Prognosis in LVAD Patients. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.339] [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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Belkin M, Imamura T, Kanelidis A, Henry M, Fujino T, Kagan V, Meehan K, Okray J, Creighton S, LaBuhn C, Song T, Ota T, Jeevanandam V, Nguyen A, Chung B, Smith B, Kalantari S, Grinstein J, Sarswat N, Pinney S, Sayer G, Kim G, Uriel N. Postoperative Tolvaptan Use in Left Ventricular Assist Device Implantation Patients: The TOLVAD Study. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1243] [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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Rodgers D, Raikarr C, Kruse E, Combs P, Mazurski J, Cruz J, Lupo S, Hu K, Smith B, Nguyen A, Chung B, Kalantari S, Sarswat N, Kim G, Grinstein J, Uriel N, Labuhn C, Onsager D, Song T, Hibino N, Ota T, Pinney S, Jeevanandam V. A Signal in the Noise: Noninvasive Acoustical Evaluation of Continuous Flow Left Ventricular Assist Device. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1164] [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: 11/24/2022] Open
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Nishida H, Song T, Onsager D, Combs P, Nguyen A, Grinstein J, Chung B, Smith B, Kalantari S, Sarswat N, Kim G, Pinney S, Jeevanandam V, Ota T. Comparing Short/Long-Term Outcomes of Heart Transplants That Occur Inside and Outside of Normal Working Hours. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.745] [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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Goldenberg J, Rogers D, Kagan V, Meehan K, Okray J, Creighton S, LaBuhn C, Song T, Ota T, Jeevanandam V, Nguyen A, Chung B, Smith B, Kalantari S, Grinstein J, Sarswat N, Pinney S, Kim G. Characteristics of LVAD Turn-Down Study to Predict Myocardial Recovery and Successful LVAD Decommissioning. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.713] [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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Bole I, Rodgers D, Smith B, Nguyen A, Chung B, Kalantari S, Sarswat N, Kim G, Song T, Ota T, Jeevanandam V, Pinney S, Grinstein J. Estimated versus Actual Oxygen Consumption in Patients Supported with LVADs. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1250] [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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Johnson B, Riley W, Iwai K, Arcaro M, Song T. Report of the 2020 Organ Care System Workforce Survey: Personnel Profiles and Staffing Models. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.570] [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: 11/30/2022] Open
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Zhang YT, Deng AP, Hu T, Chen XG, Zhuang YL, Tan XH, Zheng HZ, Sun LM, Li Y, Zhong HJ, He JF, Song T, Kang M. [Clinical outcomes of COVID-19 cases and influencing factors in Guangdong province]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 41:1999-2004. [PMID: 32340095 DOI: 10.3760/cma.j.cn112338-20200318-00378] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the clinical courses and outcomes of COVID-19 cases and the influencing factors in Guangdong province and provide basis for the formulation or adjustment of medical care and epidemic control strategy for COVID-19. Methods: We collected demographic data, medical histories, clinical courses and outcomes of 1 350 COVID-19 patients reported in Guangdong as of 4 March 2020 via epidemiological investigation and process tracking. Disease severity and clinical course characteristics of the patients and influencing factors of severe illness were analyzed in our study. Results: Among 1 350 cases of COVID-19 cases in Guangdong, 72 (5.3%) and 1 049 (77.7%) were mild and ordinary cases, 164 (12.1%) were severe cases, 58 (4.3%) were critical cases and 7 (0.5%) were fatal. The median duration of illness were 23 days (P(25), P(75): 18, 31 days) and the median length of hospitalization were 20 days (P(25), P(75): 15,27 days). For severe cases, the median time of showing severe manifestations was on the 12(th) day after onset (P(25), P(75): 9(th) to 15(th) days), and the median time of severe manifestation lasted for 8 days (P(25), P(75): 4, 14 days). Among 1 066 discharged/fetal cases, 36.4% (36/99) and 1.0% (1/99) of the mild cases developed to ordinary cases and severe cases respectively after admission; and 5.2% (50/968) and 0.6% (6/968) of the ordinary cases developed to severe cases, and critical cases respectively after admission. In severe cases, 11.4% developed to critical cases (10/88). The influencing factors for severe illness or worse included male (aHR=1.87, 95%CI: 1.43-2.46), older age (aHR=1.67, 95%CI: 1.51-1.85), seeking medical care on day 2-3 after onset (aHR=1.73, 95%CI: 1.20-2.50) pre-existing diabetes (aHR=1.75, 95%CI: 1.12-2.73) and hypertension (aHR=1.49, 95%CI: 1.06-2.09). Conclusions: The course of illness and length of hospitalization of COVID-19 cases were generally long and associated with severity of disease clinical outcomes. The severe cases were mainly occurred in populations at high risk. In the epidemic period, classified management of COVID-19 cases should be promoted according to needs for control and prevention of isolation and treatment for the purpose of rational allocation of medical resources.
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Affiliation(s)
- Y T Zhang
- Institute for Communicable Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 510000, China
| | - A P Deng
- Institute for Communicable Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 510000, China
| | - T Hu
- Institute for Communicable Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 510000, China
| | - X G Chen
- Institute for Communicable Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 510000, China
| | - Y L Zhuang
- Institute for Communicable Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 510000, China
| | - X H Tan
- Institute for Communicable Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 510000, China
| | - H Z Zheng
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 510000, China
| | - L M Sun
- Institute of Immunization, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 510000, China
| | - Y Li
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 510000, China
| | - H J Zhong
- Public Health Emergency Response Department, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 510000, China
| | - J F He
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 510000, China
| | - T Song
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 510000, China
| | - M Kang
- Institute for Communicable Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 510000, China
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Xin LH, Liu WJ, Song T, Zhang L. Overexpression of DJ-1 expression protects cardiomyocyte apoptosis induced by ischemia reperfusion. Eur Rev Med Pharmacol Sci 2020; 24:11988. [PMID: 33336715 DOI: 10.26355/eurrev_202012_23963] [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: 11/12/2022]
Abstract
Since this article has been suspected of research misconduct and the corresponding authors did not respond to our request to prove originality of data and figures, "Overexpression of DJ-1 expression protects cardiomyocyte apoptosis induced by ischemia reperfusion, by L.-H. Xin, W.-J. Liu, T. Song, L. Zhang, published in Eur Rev Med Pharmacol Sci 2019; 23 (4): 1722-1729-DOI: 10.26355/eurrev_201902_17134-PMID: 30840297" has been withdrawn. The Publisher apologizes for any inconvenience this may cause. https://www.europeanreview.org/article/17134.
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Affiliation(s)
- L-H Xin
- Department of Cardiology, People's Hospital of Lanling County, Shandong Province, Linyi, Shandong, China
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Ma J, Zhu L, Zhou Z, Song T, Yang L, Yan X, Chen A, Ye TW. The calcium channel TRPV6 is a novel regulator of RANKL-induced osteoclastic differentiation and bone absorption activity through the IGF-PI3K-AKT pathway. Cell Prolif 2020; 54:e12955. [PMID: 33159483 PMCID: PMC7791174 DOI: 10.1111/cpr.12955] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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: 08/13/2020] [Revised: 10/01/2020] [Accepted: 10/20/2020] [Indexed: 12/18/2022] Open
Abstract
Objectives Calcium ion signals are important for osteoclast differentiation. Transient receptor potential vanilloid 6 (TRPV6) is a regulator of bone homeostasis. However, it was unclear whether TRPV6 was involved in osteoclast formation. Therefore, the aim of this study was to evaluate the role of TPRV6 in bone metabolism and to clarify its regulatory role in osteoclasts at the cellular level. Materials and methods Bone structure and histological changes in Trpv6 knockout mice were examined using micro‐computed tomography and histological analyses. To investigate the effects of Trpv6 on osteoclast function, we silenced or overexpressed Trpv6 in osteoclasts via lentivirus transfection, respectively. Osteoclast differentiation and bone resorption viability were measured by tartrate‐resistant acid phosphatase (TRAP) staining and pit formation assays. The expression of osteoclast marker genes, including cathepsin k, DC‐STAMP, Atp6v0d2 and TRAP, was measured by qRT‐PCR. Cell immunofluorescence and Western blotting were applied to explore the mechanisms by which the IGF‐PI3K‐AKT pathway was involved in the regulation of osteoclast formation and bone resorption by Trpv6. Results We found that knockout of Trpv6 induced osteoporosis and enhanced bone resorption in mice, but did not affect bone formation. Further studies showed that Trpv6, which was distributed on the cell membrane of osteoclasts, acted as a negative regulator for osteoclast differentiation and function. Mechanistically, Trpv6 suppressed osteoclastogenesis by decreasing the ratios of phosphoprotein/total protein in the IGF–PI3K–AKT signalling pathway. Blocking of the IGF–PI3K–AKT pathway significantly alleviated the inhibitory effect of Trpv6 on osteoclasts formation. Conclusions Our study confirmed the important role of Trpv6 in bone metabolism and clarified its regulatory role in osteoclasts at the cellular level. Taken together, this study may inspire a new strategy for the treatment of osteoporosis.
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Affiliation(s)
- Jun Ma
- Department of Orthopedic Trauma Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai, China.,Department of Health Statistics, The Second Military Medical University, Shanghai, China
| | - Lei Zhu
- Department of Orthopedic Trauma Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai, China
| | - Zhibin Zhou
- Department of Orthopedic Surgery, General Hospital of Northern Theater Command, Shenyang, China
| | - Tengfei Song
- Department of Orthopedic Trauma Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai, China
| | - Lei Yang
- Department of Orthopedic Surgery, The 2nd affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xu Yan
- Department of Orthopedic Surgery, Naval Characteristic Medical Center, The Second Military Medical University, Shanghai, China
| | - Aimin Chen
- Department of Orthopedic Trauma Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai, China
| | - Tian Wen Ye
- Department of Orthopedic Trauma Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai, China
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