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Zhu B, He J, Ye X, Pei X, Bai Y, Gao F, Guo L, Yong H, Zhao W. Role of Cisplatin in Inducing Acute Kidney Injury and Pyroptosis in Mice via the Exosome miR-122/ELAVL1 Regulatory Axis. Physiol Res 2023; 72:753-765. [PMID: 38215062 PMCID: PMC10805259] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 09/20/2023] [Indexed: 01/14/2024] Open
Abstract
Although cisplatin is an effective chemotherapy drug for the treatment of various cancers, its clinical use is limited due to its side effects, especially nephrotoxicity. Unfortunately, acute kidney injury (AKI) caused by cisplatin remains one of the main challenges in effective cancer treatment. Evidence increasingly suggests that renal inflammation and pyroptotic inflammatory cell death of renal tubular epithelial cells (RTECs) mainly determine the progression and outcome of cisplatin-induced AKI. However, it is not clear how cisplatin regulates the pyroptosis of RTECs cells in AKI. The current study aimed to determine the regulation mechanism of AKI induced by cisplatin. We used cisplatin to induce AKI in vivo. We performed H&E staining of mouse kidney tissue sections and evaluated serological indicators of kidney injury (including blood urea nitrogen (BUN), serum creatinine, and tumor necrosis factor-alpha (TNF-alpha)). We used immunohistochemistry and western blot to detect the important substrate protein gasdermin D (GSDMD) and key target caspase-1 of pyroptosis, respectively. Cisplatin induced mouse AKI and RTECs pyroptosis. HK2 cell-derived exosomes treated with cisplatin influenced pyroptosis of the surrounding HK2 cells. Cisplatin-treated HK2 cells exosome-derived miR-122 regulated pyroptosis in the surrounding cells. Exosome-derived miR-122 affected cisplatin-induced AKI and HK2 cells pyroptosis by regulating the expression of embryonic lethal abnormal vision (ELAVL1). These results suggest that exosome miR-122 inhibited pyroptosis and AKI by targeting ELAVL1 under cisplatin treatment, and this offers a potential target for the treatment of AKI.
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Affiliation(s)
- B Zhu
- Department of Geriatric, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
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Huang X, Xu X, Wang C, Wang Y, Yang Y, Yao T, Bai R, Pei X, Bai F, Li P. Using bioinformatics technology to mine the expression of serum exosomal miRNA in patients with traumatic brain injury. Front Neurosci 2023; 17:1145307. [PMID: 37144089 PMCID: PMC10151740 DOI: 10.3389/fnins.2023.1145307] [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: 01/16/2023] [Accepted: 03/13/2023] [Indexed: 05/06/2023] Open
Abstract
Introduction Traumatic brain injury (TBI) is considered the most common traumatic neurological disease, is associated with high mortality and long-term complications, and is a global public health issue. However, there has been little progress in serum markers for TBI research. Therefore, there is an urgent need for biomarkers that can sufficiently function in TBI diagnosis and evaluation. Methods Exosomal microRNA (ExomiR), a stable circulating marker in the serum, has aroused widespread interest among researchers. To explore the level of serum ExomiR after TBI, we quantified ExomiR expression levels in serum exosomes extracted from patients with TBI using next-generation sequencing (NGS) and explored potential biomarkers using bioinformatics screening. Results Compared with the control group, there were 245 ExomiR (136 up-regulated and 109 down-regulated) in the serum of the TBI group that changed significantly. We observed serum ExomiRs expression profiles associated with neurovascular remodeling, the integrity of the blood-brain barrier, neuroinflammation, and a cascade of secondary injury, including eight up-regulated ExomiRs (ExomiR-124-3p, ExomiR-137-3p, ExomiR-9-3p, ExomiR-133a-5p, ExomiR-204-3p, ExomiR-519a-5p, ExomiR-4732-5p, and ExomiR-206) and 2 down-regulated ExomiR (ExomiR-21-3p and ExomiR-199a-5). Discussion The results revealed that serum ExomiRs might become a new research direction and breakthrough for the diagnosis and pathophysiological treatment of patients with TBI.
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Affiliation(s)
- Xintao Huang
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
- *Correspondence: Xintao Huang,
| | - Xinjuan Xu
- Department of Neurosurgery, Shanxi Cardiovascular Hospital, Taiyuan, Shanxi, China
| | - Ce Wang
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
- The First School of Clinical Medicine, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Yi Wang
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
- The First School of Clinical Medicine, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Yajun Yang
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
- The First School of Clinical Medicine, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Tianle Yao
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Rui Bai
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Xile Pei
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Feirong Bai
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
- The First School of Clinical Medicine, Shanxi Medical University, Taiyuan, Shanxi, China
| | - Panpan Li
- Department of Neurosurgery, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
- The First School of Clinical Medicine, Shanxi Medical University, Taiyuan, Shanxi, China
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Pei X, He Y, Wang JY, Wang H, Bo QB. Substituted benzoate-anchored decanuclear titanium-oxo clusters featuring unprecedented defective double-cubane geometry. CrystEngComm 2023. [DOI: 10.1039/d2ce01653b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Based on DMF solvent, four titanium-oxo clusters (TOCs) [Ti10(μ3-O)12(L)6 (OiPr)10 (DMF)2] (Ti-L) (L=4-methylbenzoate(MB), 3,5-Di-tert-butylbenzoate (DTBB), 4-Methoxybenzoate (MOB) and 4-Methyl-3,5-dinitrobenzoate(MDNB) with the same coordination environments have been solvothermally synthesized with high...
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Selenica P, Marra A, Choudhury NJ, Gazzo A, Falcon CJ, Patel J, Pei X, Zhu Y, Ng CKY, Curry M, Heller G, Zhang YK, Berger MF, Ladanyi M, Rudin CM, Chandarlapaty S, Lovly CM, Reis-Filho JS, Yu HA. APOBEC mutagenesis, kataegis, chromothripsis in EGFR-mutant osimertinib-resistant lung adenocarcinomas. Ann Oncol 2022; 33:1284-1295. [PMID: 36089134 PMCID: PMC10360454 DOI: 10.1016/j.annonc.2022.09.151] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 08/02/2022] [Accepted: 09/01/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Studies of targeted therapy resistance in lung cancer have primarily focused on single-gene alterations. Based on prior work implicating apolipoprotein b mRNA-editing enzyme, catalytic polypeptide-like (APOBEC) mutagenesis in histological transformation of epidermal growth factor receptor (EGFR)-mutant lung cancers, we hypothesized that mutational signature analysis may help elucidate acquired resistance to targeted therapies. PATIENTS AND METHODS APOBEC mutational signatures derived from an Food and Drug Administration-cleared multigene panel [Memorial Sloan Kettering Cancer Center Integrated Mutation Profiling of Actionable Cancer Targets (MSK-IMPACT)] using the Signature Multivariate Analysis (SigMA) algorithm were validated against the gold standard of mutational signatures derived from whole-exome sequencing. Mutational signatures were decomposed in 3276 unique lung adenocarcinomas (LUADs), including 93 paired osimertinib-naïve and -resistant EGFR-mutant tumors. Associations between APOBEC and mechanisms of resistance to osimertinib were investigated. Whole-genome sequencing was carried out on available EGFR-mutant lung cancer samples (10 paired, 17 unpaired) to investigate large-scale genomic alterations potentially contributing to osimertinib resistance. RESULTS APOBEC mutational signatures were more frequent in receptor tyrosine kinase (RTK)-driven lung cancers (EGFR, ALK, RET, and ROS1; 25%) compared to LUADs at large (20%, P < 0.001); across all subtypes, APOBEC mutational signatures were enriched in subclonal mutations (P < 0.001). In EGFR-mutant lung cancers, osimertinib-resistant samples more frequently displayed an APOBEC-dominant mutational signature compared to osimertinib-naïve samples (28% versus 14%, P = 0.03). Specifically, mutations detected in osimertinib-resistant tumors but not in pre-treatment samples significantly more frequently displayed an APOBEC-dominant mutational signature (44% versus 23%, P < 0.001). EGFR-mutant samples with APOBEC-dominant signatures had enrichment of large-scale genomic rearrangements (P = 0.01) and kataegis (P = 0.03) in areas of APOBEC mutagenesis. CONCLUSIONS APOBEC mutational signatures are frequent in RTK-driven LUADs and increase under the selective pressure of osimertinib in EGFR-mutant lung cancer. APOBEC mutational signature enrichment in subclonal mutations, private mutations acquired after osimertinib treatment, and areas of large-scale genomic rearrangements highlights a potentially fundamental role for APOBEC mutagenesis in the development of resistance to targeted therapies, which may be potentially exploited to overcome such resistance.
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Affiliation(s)
- P Selenica
- Memorial Sloan Kettering Cancer Center, New York City
| | - A Marra
- Memorial Sloan Kettering Cancer Center, New York City
| | - N J Choudhury
- Department of Medicine, Thoracic Oncology Service, Memorial Sloan Kettering Cancer Center, New York City
| | - A Gazzo
- Memorial Sloan Kettering Cancer Center, New York City
| | - C J Falcon
- Druckenmiller Center for Cancer Research, Memorial Sloan Kettering Cancer Center, New York City, USA
| | - J Patel
- Memorial Sloan Kettering Cancer Center, New York City
| | - X Pei
- Memorial Sloan Kettering Cancer Center, New York City
| | - Y Zhu
- Memorial Sloan Kettering Cancer Center, New York City
| | - C K Y Ng
- Department for BioMedical Research (DBMR), University of Bern, Bern, Switzerland
| | - M Curry
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York City
| | - G Heller
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York City
| | - Y-K Zhang
- Department of Medicine, Division of Hematology and Oncology and Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville
| | - M F Berger
- Memorial Sloan Kettering Cancer Center, New York City; Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, New York City; Department of Pathology, Molecular Diagnostics Service, Memorial Sloan Kettering Cancer Center, New York City
| | - M Ladanyi
- Department of Pathology, Molecular Diagnostics Service, Memorial Sloan Kettering Cancer Center, New York City
| | - C M Rudin
- Department of Medicine, Thoracic Oncology Service, Memorial Sloan Kettering Cancer Center, New York City; Department of Medicine, Weill Cornell Medical College, New York City, USA
| | - S Chandarlapaty
- Memorial Sloan Kettering Cancer Center, New York City; Department of Medicine, Weill Cornell Medical College, New York City, USA
| | - C M Lovly
- Department of Medicine, Division of Hematology and Oncology and Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville
| | | | - H A Yu
- Department of Medicine, Thoracic Oncology Service, Memorial Sloan Kettering Cancer Center, New York City; Department of Medicine, Weill Cornell Medical College, New York City, USA.
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Hua J, Wang M, Zhang D, Pei X, Zhao X, Ma X. A THREE-DIMENSIONAL CADMIUM MIXED LIGANDS COORDINATION POLYMER WITH CO2 ADSORPTION ABILITY. J STRUCT CHEM+ 2022. [DOI: 10.1134/s0022476622120162] [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: 12/29/2022]
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Luo H, Jin F, Yang X, Li C, Li Q, Tan X, Li S, Peng H, Hu W, He H, Pei X. Effect of Diode-Based Transmission Detector Measurement on Dose Perturbation during Delivery of 6MV Photon. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.2166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Pei X, Mladenov E, Soni A, Li F, Stuschke M, Iliakis G. PTEN Loss Enhances Error-Prone DSB Processing and Tumor Cell Radiosensitivity by Suppressing RAD51 Expression and Homologous Recombination. Int J Mol Sci 2022; 23:12876. [PMID: 36361678 PMCID: PMC9658850 DOI: 10.3390/ijms232112876] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/19/2022] [Accepted: 10/19/2022] [Indexed: 09/29/2023] Open
Abstract
PTEN has been implicated in the repair of DNA double-strand breaks (DSBs), particularly through homologous recombination (HR). However, other data fail to demonstrate a direct role of PTEN in DSB repair. Therefore, here, we report experiments designed to further investigate the role of PTEN in DSB repair. We emphasize the consequences of PTEN loss in the engagement of the four DSB repair pathways-classical non-homologous end-joining (c-NHEJ), HR, alternative end-joining (alt-EJ) and single strand annealing (SSA)-and analyze the resulting dynamic changes in their utilization. We quantitate the effect of PTEN knockdown on cell radiosensitivity to killing, as well as checkpoint responses in normal and tumor cell lines. We find that disruption of PTEN sensitizes cells to ionizing radiation (IR). This radiosensitization is associated with a reduction in RAD51 expression that compromises HR and causes a marked increase in SSA engagement, an error-prone DSB repair pathway, while alt-EJ and c-NHEJ remain unchanged after PTEN knockdown. The G2-checkpoint is partially suppressed after PTEN knockdown, corroborating the associated HR suppression. Notably, PTEN deficiency radiosensitizes cells to PARP inhibitors, Olaparib and BMN673. The results show the crucial role of PTEN in DSB repair and show a molecular link between PTEN and HR through the regulation of RAD51 expression. The expected benefit from combination treatment with Olaparib or BMN673 and IR shows that PTEN status may also be useful for patient stratification in clinical treatment protocols combining IR with PARP inhibitors.
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Affiliation(s)
- Xile Pei
- Division of Experimental Radiation Biology, Department of Radiation Therapy, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
- Institute of Medical Radiation Biology, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
| | - Emil Mladenov
- Division of Experimental Radiation Biology, Department of Radiation Therapy, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
- Institute of Medical Radiation Biology, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
| | - Aashish Soni
- Division of Experimental Radiation Biology, Department of Radiation Therapy, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
- Institute of Medical Radiation Biology, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
| | - Fanghua Li
- Institute of Medical Radiation Biology, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
| | - Martin Stuschke
- Division of Experimental Radiation Biology, Department of Radiation Therapy, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
- German Cancer Consortium (DKTK), Partner Site University Hospital Essen, 45147 Essen, Germany
| | - George Iliakis
- Division of Experimental Radiation Biology, Department of Radiation Therapy, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
- Institute of Medical Radiation Biology, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
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Tirunagaru V, Singh K, Pei X, Doebele R. Combination of MDM2 inhibition with milademetan and MEK inhibition leads to improved anti-tumor activity in cancer models harboring WT TP53. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)00858-9] [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: 11/03/2022]
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Meng Z, Wu K, Pei X, Gu Y, Li L, He D. 12P In vitro and in vivo investigations of anlotinib in bladder cancer treatment. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.040] [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] Open
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Marra A, Gazzo A, Gupta A, Selenica P, Da Silva E, Pareja F, Pei X, Zhu Y, Razavi P, Safonov A, Ferraro E, Harris R, Riaz N, Reis-Filho J, Chandarlapaty S. 210O Mutational signature analysis reveals patterns of genomic instability linked to resistance to endocrine therapy (ET) +/- CDK 4/6 inhibition (CDK4/6i) in estrogen receptor-positive/HER2-negative (ER+/HER2-) metastatic breast cancer (MBC). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Yang Q, Mao Y, Wang J, Yu H, Zhang X, Pei X, Duan Z, Xiao C, Ma M. Gestational bisphenol A exposure impairs hepatic lipid metabolism by altering mTOR/CRTC2/SREBP1 in male rat offspring. Hum Exp Toxicol 2022; 41:9603271221129852. [PMID: 36137816 DOI: 10.1177/09603271221129852] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Lipid metabolism is an important biochemical process in the body. Recent studies have found that environmental endocrine disruptors play an important role in the regulation of lipid metabolism. Bisphenol A (BPA), a common environmental endocrine disruptor, has adverse effects on lipid metabolism, but the mechanism is still unclear. This study aimed to investigate the effects of gestational BPA exposure on hepatic lipid metabolism and its possible mechanism in male offspring. The pregnant Sprague-Dawley rats were exposed to BPA (0, 0.05, 0.5, 5 mg/kg/day) from day 5 to day 19 of gestation to investigate the levels of triglyceride (TG) and total cholesterol (TC), and the expression of liver lipid metabolism-related genes in male offspring rats. The results showed that compared with the control group, the TG and TC levels in serum and liver in BPA-exposed groups was increased. And the expressions of liver fatty acid oxidation related genes, such as peroxisome proliferators-activated receptor α (PPARα) and carnitine palmitoyl transferase 1α (CPT1α), were down-regulated. However, the expressions of fatty acid synthesis related genes, such as sterol regulatory element binding proteins 1 (SREBP-1), acetyl-CoA carboxylase 1 (ACC1), fatty acid synthase (FAS) and stearoyl-CoA desaturase 1 (SCD-1), were up-regulated. The increased protein levels of mTOR and p-CRTC2 suggested that CREB-regulated transcription coactivator 2 (CRTC2) might be an important mediator in the mTOR/SREBP-1 pathway. In conclusion, these results demonstrated that mTOR/CRTC2/SREBP-1 could be affected by gestational BPA exposure, which may involve in the lipid metabolic disorders in later life.
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Affiliation(s)
- Q Yang
- Department of Toxicology, School of Public Heath, 70577Shenyang Medical College, Shenyang, China
| | - Y Mao
- Department of Toxicology, School of Public Heath, 70577Shenyang Medical College, Shenyang, China
| | - J Wang
- Department of Toxicology, School of Public Heath, 70577Shenyang Medical College, Shenyang, China
| | - H Yu
- Department of Toxicology, School of Public Heath, 70577Shenyang Medical College, Shenyang, China
| | - X Zhang
- Department of Toxicology, School of Public Heath, 70577Shenyang Medical College, Shenyang, China
| | - X Pei
- Department of Toxicology, School of Public Heath, 70577Shenyang Medical College, Shenyang, China
| | - Z Duan
- Department of Toxicology, School of Public Heath, 70577Shenyang Medical College, Shenyang, China
| | - C Xiao
- Department of Key Laboratory of Environmental Pollution and Microecology, 70577Shenyang Medical College, Shenyang, China
| | - M Ma
- Department of Toxicology, School of Public Heath, 70577Shenyang Medical College, Shenyang, China.,Department of Key Laboratory of Environmental Pollution and Microecology, 70577Shenyang Medical College, Shenyang, China
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Riaz N, Sherman E, Pei X, Schoder H, Paudyal R, Katabi N, Ma D, Tsai C, McBride S, Morris L, Boyle J, Singh B, Foote R, Ho A, Wong R, Humm J, Dave A, Pfister D, Reis-Filho J, Lee N. Genetic and micro-environmental factors influencing response to definitive 30Gy chemo-radiotherapy (chemoRT) in HPV Positive Oropharyngeal Cancer (OPC). Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Pei X, Liu L, Cai Y, Peng Y, Ma C, Jin Y, Ping Z. Body mass index cut-off points for predicting chronic non-communicable disease should differ by gender and age group. Public Health 2019; 175:54-59. [PMID: 31398517 DOI: 10.1016/j.puhe.2019.06.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 04/15/2019] [Accepted: 06/26/2019] [Indexed: 11/30/2022]
Abstract
OBJECTIVES The objective of this study to determine whether body mass index (BMI) in different genders and age groups need different thresholds when predicting chronic non-communicable diseases (CNCDs). STUDY DESIGN This is a cross-sectional study. METHODS Data were obtained from the China Health and Nutrition Survey conducted in 2009. Sequential sample cluster analysis was used to group age according to BMI. Propensity score matching was used to eliminate the influence of age. Receiver operating characteristic curve based on gender and age group was used to evaluate the cut-off values and efficiency of BMI in each group. RESULTS A total of 8469 individuals were enrolled in this study. Results of sequential sample cluster analyses showed age was divided into three groups: 18-39, 40-59 and 60-99 years. There were significant differences in the distribution of BMI among the three groups for both males and females (P < 0.001). Statistical differences were observed in the distribution of BMI between genders in the 18-39- and 60-99-year-old age groups (P < 0.001). For men, the cut-off values of BMI were ≥25 kg/m2, ≥24 kg/m2 and ≥23 kg/m2 in the 18-39, 40-59 and 60-99 years old groups, respectively; for women, the corresponding cut-off points were ≥25 kg/m2, ≥23 kg/m2 and ≥25 kg/m2 in groups. CONCLUSIONS The thresholds for BMI might be different between gender and age group. In addition, it might not be suitable to determine cut-off values of BMI to predict CNCDs for people aged ≥60 years.
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Affiliation(s)
- X Pei
- College of Public Health, Zhengzhou University, Zhengzhou, China; Henan Provincial People's Hospital and People's Hospital of Zhengzhou University, Henan Eye Institute, Henan Eye Hospital, Zhengzhou, China
| | - L Liu
- School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Y Cai
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Y Peng
- School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - C Ma
- School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Y Jin
- School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Z Ping
- College of Public Health, Zhengzhou University, Zhengzhou, China.
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Wang G, Liu L, Tao W, Xiao Z, Pei X, Liu B, Wang M, Lin G, Ao T. Effects of replacing inorganic trace minerals with organic trace minerals on the production performance, blood profiles, and antioxidant status of broiler breeders. Poult Sci 2019; 98:2888-2895. [DOI: 10.3382/ps/pez035] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 01/23/2019] [Indexed: 01/22/2023] Open
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Ashley C, Paula A, Kumar R, Mandelker D, Pei X, Riaz N, Reis-Filho J, Weigelt B. Mutational signature analysis of primary and metastatic endometrial cancer reveals associations with molecular subtypes and shifts during tumor progression. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.04.113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Smith E, Paula A, Cadoo K, Abu-Rustum N, Pei X, Riaz N, Robson M, Reis-Filho J, Mandelker D, Weigelt B. Endometrial cancers in or germline mutations carriers. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.04.154] [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]
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Li X, Zong Q, Ren R, Zhang Y, Tan L, Li T, Pei X, Zhou J, Tang X. Effect of Altitude on Apnea Hypopnea Index and Heart Rate Variability During Sleep in Healthy Subjects. B65. SRN: DIAGNOSIS AND MONITORING OF SLEEP AND SLEEP DISORDERS 2019. [DOI: 10.1164/ajrccm-conference.2019.199.1_meetingabstracts.a3891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- X. Li
- Sleep Medicine Center, West China Hospital,, Chengdu, China
| | - Q. Zong
- Department of Orthopedics and Trauma, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, China
| | - R. Ren
- Sleep Medicine Center, West China Hospital,, Chengdu, China
| | - Y. Zhang
- Sleep Medicine Center, West China Hospital,, Chengdu, China
| | - L. Tan
- Sleep Medicine Center, West China Hospital,, Chengdu, China
| | - T. Li
- Sleep Medicine Center, West China Hospital,, Chengdu, China
| | - X. Pei
- Sleep Medicine Center, West China Hospital,, Chengdu, China
| | - J. Zhou
- Sleep Medicine Center, West China Hospital,, Chengdu, China
| | - X. Tang
- Sleep Medicine Center, West China Hospital,, Chengdu, China
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Pei X, Fan X, Zhang H, Duan H, Xu C, Xie B, Wang L, Li X, Peng Y, Shen T. Low frequency, weak MCP-1 secretion and exhausted immune status of peripheral monocytes were associated with progression of severe enterovirus A71-infected hand, foot and mouth disease. Clin Exp Immunol 2019; 196:353-363. [PMID: 30697697 DOI: 10.1111/cei.13267] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/14/2019] [Indexed: 11/29/2022] Open
Abstract
A minority of hand, foot and mouth disease (HFMD) caused by enterovirus A71 (EV-A71) results in severe neural complications. However, whether monocyte-mediated immunity is involved in the disease progression of HFMD remains unknown. One hundred and twenty mild and 103 severe HFMD patients were recruited and enzyme-linked immunosorbent assay (ELISA), flow cytometry and Transwell culture were performed in the study. Peripheral monocyte counts were lower in both absolute counts and frequencies in severe cases compared to mild cases. After screening 10 monocyte-related cytokines by ELISA, only monocyte chemoattractant protein-1 (MCP-1) was found at higher levels in sera of mild cases compared to those with severe symptoms. Monocytes purified from mild cases produced more MCP-1 than the cells from severe patients when stimulated in vitro. We observed that immune exhaustion markers programmed death 1 (PD-1) and programmed death ligand 1 (PD-L1) were highly regulated on the surface of monocytes from severe cases compared to mild cases. PD-L1 blockade induced a higher production of MCP-1 in the supernatant of a Transwell system. The production of MCP-1 also increased following PD-L1 blockade of purified monocytes activated by granulocyte-macrophage colony-stimulating factor (GM-CSF) combined with R848 or EV-A71 virus. Our results indicate that absolute count, frequency and levels of MCP-1 secretion of peripheral monocytes, together with their immune status, probably contribute to differential disease prognosis in EV-A71-associated HFMD.
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Affiliation(s)
- X Pei
- Department of Microbiology and Infectious Disease Center, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - X Fan
- Department of Microbiology and Infectious Disease Center, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China.,Center of Laboratory Medicine, Beijing Children Hospital, Beijing, China
| | - H Zhang
- Department of Microbiology and Infectious Disease Center, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - H Duan
- Department of Microbiology and Infectious Disease Center, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - C Xu
- Department of Microbiology and Infectious Disease Center, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - B Xie
- Department of Microbiology and Infectious Disease Center, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - L Wang
- National Clinical Key Department of Infectious Disease, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - X Li
- National Clinical Key Department of Infectious Disease, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Y Peng
- Department of Microbiology and Infectious Disease Center, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - T Shen
- Department of Microbiology and Infectious Disease Center, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
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19
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Kumar R, Pei X, Selenica P, Wen HY, Powell S, Robson M, Riaz N, Reis-Filho JS, Weigelt B, Mandelker D. Abstract P4-04-01: The landscape of somatic genetic alterations in breast cancers from CHEK2 germline mutation carriers. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p4-04-01] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction: Checkpoint kinase 2 (CHEK2) is a tumor suppressor gene, which regulates cell cycle in response to DNA damage response. Selected CHEK2 germline mutations have been shown to confer an increased risk of breast cancer development. Multiple founder mutations in CHEK2 have been identified, and meta analyses have shown that CHEK2 truncating variants confer a higher breast cancer risk than missense variants. Here, we assessed the phenotype and repertoire of genetic alterations of breast cancers from 33 patients with CHEK2 pathogenic germline variants.
Materials and methods: We performed targeted capture massively parallel sequencing (≥410 genes) of tumor and normal samples from 13 patients with CHEK2 pathogenic germline variants, and retrieved whole exome sequencing (WES) data (BAM files) of tumor and normal samples from 20 patients with CHEK2 germline pathogenic variants included in the TCGA breast cancer study. In addition, we retrieved WES data of BRCA1, BRCA2 and ATM associated breast cancers from TCGA and Weigelt et al. (JNCI 2018). Somatic mutations, copy number alterations, mutational signatures and large-scale transitions (LSTs) were defined using state-of-the-art bioinformatics algorithms.
Results: Of the 33 CHEK2-associated breast cancers included in this study, 21 had missense and 12 had loss-of-function (LoF) germline mutations, and 81% were ER-positive and 12% HER2-positive. CHEK2-associated breast cancers statistically significantly less frequently displayed an ER-negative/HER2-negative phenotype (0%) than BRCA1- (80%) or BRCA2-associated (33%) breast cancers (BRCA1, p<0.0001 for both comparisons), but were similar to ATM-associated breast cancers. Biallelic inactivation of CHEK2 through loss of heterozygosity (LOH) of the wild-type allele was present in 17 of 33 samples (52%). LOH of the CHEK2 wild-type allele was significantly more frequent in tumors with LOF mutations than in those with missense mutations (78% vs 36%, respectively; p=0.0394). PIK3CA (36%) and GATA3 (33%) were the two most recurrently mutated genes in these samples. TP53 somatic mutations were detected in five cases, four of which harbored missense CHEK2 germline mutations. Unlike BRCA1- and BRCA2-associated breast cancers, but akin to ATM-associated breast cancers, CHEK2-associated breast cancers lacked the mutational signature associated with homologous recombination (HR) DNA repair defects (i.e. signature 3) and only five cases displayed high LST scores.
Conclusion:CHEK2-associated breast cancers are phenotypically and genetically distinct from BRCA1- and BRCA2-associated breast cancers, but similar to ATM-associated breast cancers. Akin to ATM-associated breast cancers, CHEK2-associated breast cancers are preferentially ER-positive, lack genomics features consistent with defective HR, and have a repertoire of somatic genetic alterations similar to those of non-BRCA1/2 ER-positive breast cancers. Our results suggest that either CHEK2 germline mutations contribute to an increased risk of breast cancer independently of the HR DNA repair defects or that the mutational signatures caused by CHEK2 pathogenic germline mutations differ from those caused by pathogenic germline mutations affecting bona fide HR-related genes (e.g. BRCA1, BRCA2 and PALB2).
Citation Format: Kumar R, Pei X, Selenica P, Wen HY, Powell S, Robson M, Riaz N, Reis-Filho JS, Weigelt B, Mandelker D. The landscape of somatic genetic alterations in breast cancers from CHEK2 germline mutation carriers [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P4-04-01.
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Affiliation(s)
- R Kumar
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - X Pei
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - P Selenica
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - HY Wen
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - S Powell
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - M Robson
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - N Riaz
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - JS Reis-Filho
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - B Weigelt
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - D Mandelker
- Memorial Sloan Kettering Cancer Center, New York, NY
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20
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Xiao Z, Liu L, Tao W, Pei X, Wang G, Wang M. 334 Clostridium tyrobutyricum protect intestinal barrier function from LPS-induced apoptosis via p38/JNK signaling pathway in IPEC-J2. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.364] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Z Xiao
- College of Animal Science. Zhejiang University,Hangzhou, Zhejiang, China (People’s Republic)
| | - L Liu
- College of Animal Science. Zhejiang University,Hangzhou, Zhejiang, China (People’s Republic)
| | - W Tao
- College of Animal Science. Zhejiang University,Hangzhou, Zhejiang, China (People’s Republic)
| | - X Pei
- College of Animal Science. Zhejiang University,Hangzhou, Zhejiang, China (People’s Republic)
| | - G Wang
- College of Animal Science. Zhejiang University,Hangzhou, Zhejiang, China (People’s Republic)
| | - M Wang
- College of Animal Science. Zhejiang University,Hangzhou, Zhejiang, China (People’s Republic)
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21
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Yang Y, Pei X, Yang M. Combination of apatinib and continuous nutritional support for a gastric cancer patient with brain metastasis prolongs survival. J Clin Pharm Ther 2018; 43:726-729. [PMID: 29777533 DOI: 10.1111/jcpt.12708] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 04/17/2018] [Indexed: 12/23/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVES Gastric cancer is the most common gastrointestinal malignant tumour in China, which rarely metastasizes into the central nervous system. However, brain metastasis leads to increased risk of death. CASE SUMMARY Here, we report a case of brain metastasis from gastric cancer, which was treated with apatinib and continual nutritional support, with a survival time of 2 years. WHAT IS NEW AND CONCLUSION The combination of apatinib and continual nutritional support may be an option for the treatment of brain metastasis from gastric cancer. A prospective study should be performed to confirm this.
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Affiliation(s)
- Y Yang
- Kunming Medical University, Yunnan, China.,Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Yunnan, China
| | - X Pei
- Department of Oncology, Lanzhou University Second Hospital, Gansu, China
| | - M Yang
- Department of Gastroenterology, Tianshui Qinzhou People's Hospital, Gansu, China
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22
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Yuan X, Pei X, Zhao Y, Li Z, Chen CH, Tulu US, Liu B, Van Brunt LA, Brunski JB, Helms JA. Biomechanics of Immediate Postextraction Implant Osseointegration. J Dent Res 2018; 97:987-994. [PMID: 29608868 DOI: 10.1177/0022034518765757] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [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: 02/05/2023] Open
Abstract
The aim of this study was to gain insights into the biology and mechanics of immediate postextraction implant osseointegration. To mimic clinical practice, murine first molar extraction was followed by osteotomy site preparation, specifically in the palatal root socket. The osteotomy was positioned such that it removed periodontal ligament (PDL) only on the palatal aspect of the socket, leaving the buccal aspect undisturbed. This strategy created 2 distinct peri-implant environments: on the palatal aspect, the implant was in direct contact with bone, while on the buccal aspect, a PDL-filled gap existed between the implant and bone. Finite element modeling showed high strains on the palatal aspect, where bone was compressed by the implant. Osteocyte death and bone resorption predominated on the palatal aspect, leading to the loss of peri-implant bone. On the buccal aspect, where finite element modeling revealed low strains, there was minimal osteocyte death and robust peri-implant bone formation. Initially, the buccal aspect was filled with PDL remnants, which we found directly provided Wnt-responsive cells that were responsible for new bone formation and osseointegration. On the palatal aspect, which was devoid of PDL and Wnt-responsive cells, adding exogenous liposomal WNT3A created an osteogenic environment for rapid peri-implant bone formation. Thus, we conclude that low strain and high Wnt signaling favor osseointegration of immediate postextraction implants. The PDL harbors Wnt-responsive cells that are inherently osteogenic, and if the PDL tissue is healthy, it is reasonable to preserve this tissue during immediate implant placement.
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Affiliation(s)
- X Yuan
- 1 Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford, CA, USA
| | - X Pei
- 1 Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford, CA, USA.,2 State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Mainland China
| | - Y Zhao
- 1 Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford, CA, USA.,3 Department of Oral Basic Science, School of Dentistry, Lanzhou University, Lanzhou, Mainland China
| | - Z Li
- 1 Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford, CA, USA.,4 Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, Mainland China
| | - C H Chen
- 1 Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford, CA, USA.,5 Craniofacial Research Center, Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - U S Tulu
- 1 Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford, CA, USA
| | - B Liu
- 6 Ankasa Regenerative Therapeutics, South San Francisco, CA, USA
| | - L A Van Brunt
- 1 Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford, CA, USA
| | - J B Brunski
- 1 Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford, CA, USA
| | - J A Helms
- 1 Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford, CA, USA.,6 Ankasa Regenerative Therapeutics, South San Francisco, CA, USA
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23
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Chen CH, Pei X, Tulu U, Aghvami M, Chen CT, Gaudillière D, Arioka M, Maghazeh Moghim M, Bahat O, Kolinski M, Crosby T, Felderhoff A, Brunski J, Helms J. A Comparative Assessment of Implant Site Viability in Humans and Rats. J Dent Res 2018; 97:451-459. [PMID: 29202640 PMCID: PMC5863872 DOI: 10.1177/0022034517742631] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [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] [Indexed: 02/05/2023] Open
Abstract
Our long-term objective is to devise methods to improve osteotomy site preparation and, in doing so, facilitate implant osseointegration. As a first step in this process, we developed a standardized oral osteotomy model in ovariectomized rats. There were 2 unique features to this model: first, the rats exhibited an osteopenic phenotype, reminiscent of the bone health that has been reported for the average dental implant patient population. Second, osteotomies were produced in healed tooth extraction sites and therefore represented the placement of most implants in patients. Commercially available drills were then used to produce osteotomies in a patient cohort and in the rat model. Molecular, cellular, and histologic analyses demonstrated a close alignment between the responses of human and rodent alveolar bone to osteotomy site preparation. Most notably in both patients and rats, all drilling tools created a zone of dead and dying osteocytes around the osteotomy. In rat tissues, which could be collected at multiple time points after osteotomy, the fate of the dead alveolar bone was followed. Over the course of a week, osteoclast activity was responsible for resorbing the necrotic bone, which in turn stimulated the deposition of a new bone matrix by osteoblasts. Collectively, these analyses support the use of an ovariectomy surgery rat model to gain insights into the response of human bone to osteotomy site preparation. The data also suggest that reducing the zone of osteocyte death will improve osteotomy site viability, leading to faster new bone formation around implants.
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Affiliation(s)
- C.-H. Chen
- Craniofacial Research Center, Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Chang Gung University School of Medicine, Taoyuan, Taiwan
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - X. Pei
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - U.S. Tulu
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - M. Aghvami
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - C.-T. Chen
- Craniofacial Research Center, Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Chang Gung University School of Medicine, Taoyuan, Taiwan
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital at Keelung, Keelung, Taiwan
| | - D. Gaudillière
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - M. Arioka
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
- Department of Clinical Pharmacology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - M. Maghazeh Moghim
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
- University College London Medical School, University College London, London, UK
| | - O. Bahat
- Private practice, Beverly Hills, CA, USA
| | | | | | | | - J.B. Brunski
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - J.A. Helms
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
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24
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Yan Y, Chen S, Chen Z, Pei X, Zhou J, Xiao Y, Wang X. The applied value of medical history, physical examination, colour-Doppler ultrasonography and testis scintigraphy in the differential diagnosis of acute scrotum. Andrologia 2018; 50:e12973. [PMID: 29460432 DOI: 10.1111/and.12973] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/28/2017] [Indexed: 11/28/2022] Open
Abstract
Acute scrotum, especially testicular torsion, is a common surgical emergency. A delay in diagnosis or management may lead to permanent testicular ischaemic damage. Thus, it is particularly important to differentiate testicular torsion from other acute scrotum conditions as soon as possible. Our study has retrospectively investigated 358 patients with acute scrotum admitted to our hospital from the year 2007 to 2016. We have collected a thorough history and clinical data and drew the conclusion by comparing clinical features of different acute scrotum cases, medical history, imaging and surgical findings. Therefore, we propose an innovative "Testicular Torsion (TT) Green Channel" concept. Through the combination of a comprehensive medical history, physical examination and auxiliary colour-Doppler ultrasonography, the diagnosis of testicular torsion is definite in most circumstances. Testis scintigraphy is a novel and complementary diagnostic modality that can reduce the negative exploration rate in ambiguous and certain cases. The TT Green Channel is a new concept in the management of testicular torsion.
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Affiliation(s)
- Y Yan
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - S Chen
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Z Chen
- Department of Urology, Jingzhou Central Hospital, The Second Clinical College, Yangtze University, Jingzhou, China
| | - X Pei
- Department of Emergency, Jingzhou Central Hospital, The Second Clinical College, Yangtze University, Jingzhou, China
| | - J Zhou
- Department of Urology, Jingzhou Central Hospital, The Second Clinical College, Yangtze University, Jingzhou, China
| | - Y Xiao
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
- Laboratory of Precision Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - X Wang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
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25
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Abstract
Stem cells residing in the periodontal ligament (PDL) support the homeostasis of the periodontium, but their in vivo identity, source(s), and function(s) remain poorly understood. Here, using a lineage-tracing mouse strain, we identified a quiescent Wnt-responsive population in the PDL that became activated in response to tooth extraction. The Wnt-responsive population expanded by proliferation, then migrated from the PDL remnants that remained attached to bundle bone, into the socket. Once there, the Wnt-responsive progeny upregulated osteogenic protein expression, differentiated into osteoblasts, and generated the new bone that healed the socket. Using a liposomal WNT3A protein therapeutic, we showed that a single application at the time of extraction was sufficient to accelerate extraction socket healing 2-fold. Collectively, these data identify a new stem cell population in the intact periodontium that is directly responsible for alveolar bone healing after tooth removal.
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Affiliation(s)
- X Yuan
- 1 Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford University, Stanford, CA, USA
| | - X Pei
- 1 Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford University, Stanford, CA, USA.,2 State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Y Zhao
- 1 Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford University, Stanford, CA, USA.,3 Department of Oral Basic Science, School of Dentistry, Lanzhou University, Lanzhou, China
| | - U S Tulu
- 1 Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford University, Stanford, CA, USA
| | - B Liu
- 4 Ankasa Regenerative Therapeutics, South San Francisco, CA, USA
| | - J A Helms
- 1 Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford University, Stanford, CA, USA
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26
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Wang H, Ran L, Hui K, Pei X, Wang X, Zheng Y. The inhibitor of apoptosis protein livin is upregulated in psoriasis vulgaris. J Eur Acad Dermatol Venereol 2018; 32:e245-e247. [PMID: 29265512 DOI: 10.1111/jdv.14768] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- H. Wang
- Department of Dermatology; the Second Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
| | - L. Ran
- Department of Dermatology and Venereology; Jingxi Campus; Beijing ChaoYang Hospital; Capital Medical University; Beijing China
| | - K. Hui
- Department of Urology; the First Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
| | - X. Pei
- Department of Urology; the First Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
| | - X. Wang
- Department of Urology; the First Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
| | - Y. Zheng
- Department of Dermatology; the Second Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
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27
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Xian Y, Li B, Pan P, Wang Y, Pei X, Yang Y. Role of Autophagy in Ovarian Cryopreservation by Vitrification. Cryo Letters 2018; 39:201-210. [PMID: 30059567] [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: 06/08/2023]
Abstract
BACKGROUND Ovarian cryopreservation by vitrification and transplantation are useful methods to recover female fertility after radiotherapy and chemotherapy. As type II programmed cell death, autophagy plays important roles in ovarian follicle development, ovarian follicle atresia and anti-stress injury. OBJECTIVE The potential role of autophagy in ovarian vitrification was investigated. MATERIALS AND METHODS Mouse ovaries were cryopreserved by vitrification, and autophagy was treated, after which the ovarian histology was checked, and ovarian follicles were counted. The apoptotic rate was detected by TUNEL, and apoptotic molecular marker cleaved caspase-3 was checked by immunofluorescence and western blot analysis. RESULTS Our results suggested that autophagy was increased in the process of vitrification compared with the fresh ovaries (p<0.05). The number of primordial follicles was decreased through inhibiting or over-activating the autophagy by autophagy inhibitor or activator (p<0.05). However, the number of primary follicles, antral follicles and atretic follicles was not significantly different compared with vitrified/warmed groups. The apoptotic rate was significantly increased in the vitrified/warmed, autophagy-inhibiting and over-activating groups compared with the fresh group (p<0.05), and this result was further confirmed by western blot analysis. CONCLUSIONS Taken together, autophagy was activated in the ovarian cryopreservation by vitrification and plays a role in a natural adaptive response to cold stress in ovarian cryopreservation by vitrification.
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Affiliation(s)
- Y Xian
- Key Laboratory of Fertility Preservation and Maintenance, Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Department of Biochemistry, Ningxia Medical University, Yinchuan, Ningxia, China
| | - B Li
- Key Laboratory of Fertility Preservation and Maintenance, Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Department of Biochemistry, Ningxia Medical University, Yinchuan, Ningxia, China
| | - P Pan
- Key Laboratory of Fertility Preservation and Maintenance, Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Department of Biochemistry, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Y Wang
- Key Laboratory of Fertility Preservation and Maintenance, Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Department of Biochemistry, Ningxia Medical University, Yinchuan, Ningxia, China
| | - X Pei
- Key Laboratory of Fertility Preservation and Maintenance, Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Department of Biochemistry, Ningxia Medical University, Yinchuan, Ningxia, China.
| | - Y Yang
- Key Laboratory of Fertility Preservation and Maintenance, Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, Department of Biochemistry, Ningxia Medical University, Yinchuan, Ningxia, China.
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28
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Yu L, Zhou L, Xu E, Bi Y, Hu X, Pei X, Jin G. Levothyroxine monotherapy versus levothyroxine and selenium combination therapy in chronic lymphocytic thyroiditis. J Endocrinol Invest 2017; 40:1243-1250. [PMID: 28534148 DOI: 10.1007/s40618-017-0693-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 05/12/2017] [Indexed: 12/18/2022]
Abstract
PURPOSE New strategies are needed for prevention and treatment of chronic lymphocytic thyroiditis (CLT). This study aimed to assess whether combination of levothyroxine treatment and selenium (Se) supplementation results in improved therapeutic effects in CLT compared with levothyroxine monotherapy. METHODS An open-label, randomized controlled study was performed in 60 CLT patients assigned to two groups. Levothyroxine group (LT) patients (n = 24) received levothyroxine alone for 3 months; meanwhile, the combination (LTSS) group (n = 36) was administered levothyroxine with selenium yeast capsule. Blood selenium concentrations, anti-thyroid peroxidase (TPO) and anti-thyroglobulin (Tg) antibody levels, and inflammatory cytokine amounts were compared between both groups before and after treatment. RESULTS At baseline, similar values were obtained in both groups for all the parameters assessed (p > 0.05). After treatment, significantly increased blood selenium levels (µg/L) [90.05 (80.69, 107.76) vs. 39.64 (29.42, 51.10), p < 0.001] and decreased anti-TPO antibody (23.63 ± 9.31 vs. 32.00 ± 10.41%, p = 0.002), anti-Tg antibody (35.84 ± 15.21 vs. 45.47 ± 14.24%, p = 0.015) and IL-2 amounts (pg/mL) [159.29 (124.54, 189.70) vs. 226.48 (190.74, 266.56), p < 0.001] were observed in the LTSS group compared with the LT group post-treatment; meanwhile, similar IL-10 concentrations [23.14 (21.65, 28.56) pg/mL vs. 24.68 (21.71, 29.67) pg/mL] were obtained in both groups. Subgroup analysis of patients with hypothyroidism showed the same trend observed in the whole population; in patients with normal thyroid function, only Se and IL-2 amounts differed between the two treatment groups. Correlation analysis of of the indexes: in HT patients, the basal serum selenium concentration was positively correlated with TT4 (r = 0.294, p < 0.05), significantly negatively correlated with TSH (r = -0.343, p < 0.01), and had no significant correlation with TT3 (p > 0.05). CONCLUSIONS These findings indicated that levothyroxine and selenium combination results in improved therapeutic effects than the levothyroxine monotherapy in preventing CLT progression.
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Affiliation(s)
- L Yu
- Department of Endocrinology, The First Affiliated Hospital of Bengbu Medical College, No. 287 Changhuai Road, Bengbu, 233004, Anhui, China
| | - L Zhou
- Department of Endocrinology, The Second Affiliated Hospital of Bengbu Medical College, Bengbu, 233004, Anhui, China
| | - E Xu
- Room of Physical Diagnostics, Bengbu Medical College, Bengbu, 233030, Anhui, China
| | - Y Bi
- Department of Endocrinology, The First Affiliated Hospital of Bengbu Medical College, No. 287 Changhuai Road, Bengbu, 233004, Anhui, China
| | - X Hu
- Department of Endocrinology, The First Affiliated Hospital of Bengbu Medical College, No. 287 Changhuai Road, Bengbu, 233004, Anhui, China
| | - X Pei
- Department of Endocrinology, The First Affiliated Hospital of Bengbu Medical College, No. 287 Changhuai Road, Bengbu, 233004, Anhui, China
| | - G Jin
- Department of Endocrinology, The First Affiliated Hospital of Bengbu Medical College, No. 287 Changhuai Road, Bengbu, 233004, Anhui, China.
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Shepherd A, Leeman J, Wild A, Imber B, Pei X, Gelb E, Yorke E, Isbell J, Chaft J, Gelblum D, Wu A, Rimner A. A Comparison of Trimodality Therapy Versus Definitive Concurrent Chemoradiation in Patients With Stage IIIA Non–small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1787] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Imber B, Leeman J, Shepherd A, Wild A, Pei X, Gelb E, Chaft J, Mychalczak B, Jones D, Isbell J, Yorke E, Wu A, Rimner A. Prognostic Impact of Tumor Location and Lymph Node Burden for Patients with Stage IIIA Non–small Cell Lung Cancer Receiving Postoperative Radiation Therapy. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1714] [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]
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Weg E, Pei X, Cahlon O, Morrow M, Powell S, McCormick B. Assessing Outcomes in the Management of Postmastectomy Local-Regional Recurrences in Breast Cancer. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.719] [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]
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Weg E, Kollmeier M, McBride S, Pei X, Zelefsky M. Dose-Escalated Intensity Modulated Radiation Therapy for Prostate Cancer: 15-Year Outcomes Data. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.509] [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]
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33
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Wild A, Shepherd A, Leeman J, Imber B, Pei X, Gelblum D, Gelb E, Chaft J, Jones D, Isbell J, Yorke E, Wu A, Rimner A. FDG-PET Maximum Standardized Uptake Value is Prognostic for Survival and Disease-Free Survival in Stage IIIA-N2 Non–small Cell Lung Cancer Patients Who Receive Postoperative Radiation Therapy. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Huang X, Wan D, Lin Y, Xue N, Hao J, Ma N, Pei X, Li R, Zhang W. Endothelial Progenitor Cells Correlated with Oxidative Stress after Mild Traumatic Brain Injury. Yonsei Med J 2017; 58:1012-1017. [PMID: 28792147 PMCID: PMC5552628 DOI: 10.3349/ymj.2017.58.5.1012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 06/01/2017] [Accepted: 06/27/2017] [Indexed: 12/26/2022] Open
Abstract
PURPOSE Endothelial progenitor cells (EPCs) play a key role in tissue repair and regeneration. Previous studies have shown that infusion of human umbilical cord blood-derived endothelial colony-forming cells improves outcomes in mice subjected to experimental traumatic brain injury (TBI). However, the efficiency of cell transplantation is not satisfactory. Oxidative stress plays a significant role in the survival of transplanted cells following ischemic reperfusion injury. This observational clinical study investigated the correlation between the number of circulating EPCs and plasma levels of superoxide dismutase (SOD) and malonyldialdehyde (MDA). MATERIALS AND METHODS Peripheral blood samples were collected from 20 patients with mild TBI at day-1, day-2, day-3, day-4, and day-7 post TBI. The number of circulating EPCs and the plasma levels of SOD and MDA were measured. RESULTS The average of circulating EPCs in TBI patients decreased initially, but increased thereafter, compared with healthy controls. Plasma levels of SOD in TBI patients were significantly lower than those in healthy controls at day-4 post-TBI. MDA levels showed no difference between the two groups. Furthermore, when assessed on day-7 post-TBI, the circulating EPC number were correlated with the plasma levels of SOD and MDA. CONCLUSION These results suggest that the number of circulating EPCs is weakly to moderately correlated with plasma levels of SOD and MDA at day-7 post-TBI, which may offer a novel antioxidant strategy for EPCs transplantation after TBI.
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Affiliation(s)
- Xintao Huang
- Department of Neurosurgery, Shanxi Medical University First Affiliated Hospital, Taiyuan, China.
| | - Dahai Wan
- Department of Neurosurgery, Shanxi Medical University First Affiliated Hospital, Taiyuan, China
| | - Yunpeng Lin
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China
| | - Naizhao Xue
- Department of Neurosurgery, Shanxi Medical University First Affiliated Hospital, Taiyuan, China
| | - Jiehe Hao
- Department of Neurosurgery, Shanxi Medical University First Affiliated Hospital, Taiyuan, China
| | - Ning Ma
- Department of Neurosurgery, Shanxi Medical University First Affiliated Hospital, Taiyuan, China
| | - Xile Pei
- Department of Neurosurgery, Shanxi Medical University First Affiliated Hospital, Taiyuan, China
| | - Ruilong Li
- Department of Neurosurgery, Shanxi Medical University First Affiliated Hospital, Taiyuan, China
| | - Wenju Zhang
- Department of Neurosurgery, Shanxi Medical University First Affiliated Hospital, Taiyuan, China
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Abstract
Our objective was to clarify the fate of the periodontal ligament (PDL) retained in the socket after tooth extraction, then determine if this tissue contributed to the osseointegration of "immediate" implants placed in these fresh extraction sockets. Mice underwent maxillary first molar extraction, the residual PDL was removed by an osteotomy, and titanium implants were placed. The osteotomy was created in such a way that the palatal surface was devoid of PDL remnants while the buccal, mesial, and distal surfaces retained PDL fibers. At multiple time points after surgery, tissues were analyzed using a battery of molecular, cellular, and histomorphometrical assays. We found that PDL remnants mineralized and directly contributed to new bone formation in the extraction site. Compared with regions of an extraction site where the PDL was removed by osteotomy, regions that retained PDL fibers had produced significantly more new bone. Around immediate implants, the retained PDL remnants directly contributed to new bone formation and osseointegration. Thus, we conclude that PDL remnants are inherently osteogenic, and if the tissue is healthy, it is reasonable to conclude that curetting out an extraction socket prior to immediate implant placement should be avoided. This recommendation aligns with contemporary trends toward minimally invasive surgical manipulations of the extraction socket prior to immediate implant placement.
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Affiliation(s)
- X Pei
- 1 State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,2 Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford, CA
| | - L Wang
- 1 State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,2 Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford, CA
| | - C Chen
- 2 Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford, CA.,3 Craniofacial Research Center, Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Chang Gung University, College of Medicine, Taoyuan, Taiwan, ROC
| | - X Yuan
- 2 Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford, CA
| | - Q Wan
- 1 State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - J A Helms
- 2 Division of Plastic and Reconstructive Surgery, Department of Surgery, Stanford School of Medicine, Stanford, CA
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Lockney N, Pei X, Blumberg L, Chan T, Yamada Y, Yang T, Beal K. PIK3CA Activating Mutations Are Associated With Decreased Local Control in Lung Cancer Brain Metastases Treated With Radiation. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Zumsteg Z, Spratt D, Pei X, Zhang Z, Woo K, Kollmeier M, McBride S, Sandler H, Zelefsky M. Redefining Unfavorable Risk Prostate Cancer: A Novel Risk Stratification Paradigm for Enhanced Outcome Prediction Via Harmonization and Unification of Risk Stratification Criteria. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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38
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Byun D, Happersett L, Zhang P, Pei X, McBride S, Kollmeier M, Zelefsky M. Variation in Interfractional Bladder Volume during Hypofractionated Radiation Therapy for Prostate Cancer. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.2168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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39
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DeSelm C, Yang T, Tisnado J, Wilgucki M, Pei X, Siu C, McCormick B, Cahlon O, Powell S, Ho A. Regional Patterns of Breast Cancer Failure After Definitive Therapy: A Large, Single-Institution Analysis. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.352] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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40
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Zhang H, Yang Y, Ma W, Wu H, Zheng X, Hei C, Sun M, Ma W, Ma H, Chang Q, Wang H, Cai Y, Xie Y, Zhao C, Pei X, Wang Y. The revascularization and follicular survival of mouse ovarian grafts treated with FSH during cryopreservation by vitrification. Cryo Letters 2016; 37:88-102. [PMID: 27224529] [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: 06/05/2023]
Abstract
BACKGROUND Ovarian cryopreservation by vitrification is a very effective pathway for the preservation of female fertility during radiotherapy and chemotherapy. However, damage of follicles was triggered by cryo-injure during the process of ovarian vitrification and ischemia/reperfusion during the process of ovarian transplantation. Appropriate FSH play important roles in anti-apoptosis and neoangiogenesis during ovarian follicle development. OBJECTIVE Therefore, the purpose of this study was to investigate the effect of FSH on the revascularization and follicular survival of vitrified-warmed ovarian grafts. MATERIALS AND TMETHODS Four-week-old C57BL/6J mice with diestrus were used and the ovaries were randomized into the following three groups: fresh control group (FCG), vitrified/warmed group (VCG) and vitrified/warmed group treated with 0.3 IU/mL FSH (FSH-VG) during ovarian vitrification. After warming, the ovaries of the three groups were allotransplanted into the renal capsule of receptor mice. Assessment of follicular quantity was performed by histological analysis. The angiogenesis factors, CD31 and MMP-2, and cell survival factors, PCNA, EdU and survivin were examined by immunohistochemistry and western blot analysis. Angiogenesis was detected by vascular perfusion with the fluorescent dye 2MD-FITC-Dextran. RESULTS The expression of CD31and MMP-2 were not significantly different in either VCG or FSH-VG compared with FCG, but when the ovaries were transplanted 48 hours later, the expression levels of CD31 and MMP-2 were lower for VCG than FCG (P < 0.05) and FSH-VG was not significantly different from FCG. Before transplantation, the expression levels of PCNA and survivin were lower for VCG and FSH-VG than FCG (p < 0.05), but FSH-VG was higher than VCG (p < 0.05). After 48 h of ovarian transplantation, the expression of survivin was lower for VCG than FCG (P < 0.05), but FSH-VG was not significantly different from FCG. In addition, these data were further supported by the results from detecting the 2MD-FITC-Dextran and EdU. CONCLUSION Taken together, supplementation with 0.3 IU/mL FSH during ovarian cryopreservation by vitrification increased the revascularization and follicular survival for mouse ovarian grafts through the up-regulated expression of angiogenesis and ovarian survival factors.
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Affiliation(s)
- H Zhang
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia; Department of Histology and Embryology, Ningxia Medical University; Tissue Organ Bank and Tissue Engineering Centre, General Hospital of Ningxia Medical University, Ningxia, China
| | - Y Yang
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia; Department of Histology and Embryology, Ningxia Medical University; Tissue Organ Bank and Tissue Engineering Centre, General Hospital of Ningxia Medical University, Ningxia, China
| | - W Ma
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia; Department of Histology and Embryology, Ningxia Medical University; Tissue Organ Bank and Tissue Engineering Centre, General Hospital of Ningxia Medical University, Ningxia, China
| | - H Wu
- Department of Orthopedics, The People No.3 Hospital of Anyang, Henan
| | - X Zheng
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia; Department of Histology and Embryology, Ningxia Medical University; Tissue Organ Bank and Tissue Engineering Centre, General Hospital of Ningxia Medical University, Ningxia, China
| | - C Hei
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia; Department of Histology and Embryology, Ningxia Medical University; Tissue Organ Bank and Tissue Engineering Centre, General Hospital of Ningxia Medical University, Ningxia, China
| | - M Sun
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia; Department of Histology and Embryology, Ningxia Medical University; Tissue Organ Bank and Tissue Engineering Centre, General Hospital of Ningxia Medical University, Ningxia, China
| | - W Ma
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia; Department of Histology and Embryology, Ningxia Medical University; Tissue Organ Bank and Tissue Engineering Centre, General Hospital of Ningxia Medical University, Ningxia, China
| | - H Ma
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia; Department of Histology and Embryology, Ningxia Medical University; Tissue Organ Bank and Tissue Engineering Centre, General Hospital of Ningxia Medical University, Ningxia, China
| | - Q Chang
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia; Department of Histology and Embryology, Ningxia Medical University; Tissue Organ Bank and Tissue Engineering Centre, General Hospital of Ningxia Medical University, Ningxia, China
| | - H Wang
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia; Department of Histology and Embryology, Ningxia Medical University; Tissue Organ Bank and Tissue Engineering Centre, General Hospital of Ningxia Medical University, Ningxia, China
| | - Y Cai
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia; Department of Histology and Embryology, Ningxia Medical University; Tissue Organ Bank and Tissue Engineering Centre, General Hospital of Ningxia Medical University, Ningxia, China
| | - Yan Xie
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia; Department of Histology and Embryology, Ningxia Medical University; Tissue Organ Bank and Tissue Engineering Centre, General Hospital of Ningxia Medical University, Ningxia, China
| | - C Zhao
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia; Department of Histology and Embryology, Ningxia Medical University; Tissue Organ Bank and Tissue Engineering Centre, General Hospital of Ningxia Medical University, Ningxia, China
| | - X Pei
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia; Department of Histology and Embryology, Ningxia Medical University; Tissue Organ Bank and Tissue Engineering Centre, General Hospital of Ningxia Medical University, Ningxia, China.
| | - Y Wang
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia; Department of Histology and Embryology, Ningxia Medical University; Tissue Organ Bank and Tissue Engineering Centre, General Hospital of Ningxia Medical University, Ningxia, China
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Ma J, Pei X, Barker C. Prospective Analysis of Quality of Life of Patients Treated With Radiation Therapy for Cutaneous Basal and Squamous Cell Carcinoma. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.2181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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42
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McBride S, Iamundo De Cumis I, Kollmeier M, Pei X, Zelefsky M. Extended Follow-up of Late Toxicity in a Large Cohort of Prostate Cancer Patients Treated With Definitive External Beam Radiation Therapy. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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43
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Zelefsky M, Kollmeier M, McBride S, Pei X. Correlation of Long-term Biochemical and Distant Metastases Outcome With Posttreatment Biopsy Results for Patients Treated With External Beam Radiation Therapy for Prostate Cancer. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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44
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Ren Q, Cao R, Pei X, Wang H, Hu L. SU-C-BRD-07: Three-Dimensional Dose Reconstruction in the Presence of Inhomogeneities Using Fast EPID-Based Back-Projection Method. Med Phys 2015. [DOI: 10.1118/1.4923803] [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: 11/07/2022] Open
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45
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Xie C, Lin H, Jing J, Chen C, Cao R, Pei X. SU-E-T-47: A Monte Carlo Model of a Spot Scanning Proton Beam Based On a Synchrotron Proton Therapy Accelerator. Med Phys 2015. [DOI: 10.1118/1.4924408] [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: 11/07/2022] Open
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46
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Jia J, Cao R, Pei X, Wang H, Hu L. SU-E-J-191: Motion Prediction Using Extreme Learning Machine in Image Guided Radiotherapy. Med Phys 2015. [DOI: 10.1118/1.4924277] [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: 11/07/2022] Open
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47
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Affiliation(s)
- B. Tam
- Department of Health Technology and Informatics, Faculty of Health and Social Sciene, Hong Kong Polytechnic University, Hong Kong, Hong Kong
| | - X. Pei
- Department of Health Technology and Informatics, Faculty of Health and Social Sciene, Hong Kong Polytechnic University, Hong Kong, Hong Kong
| | - B. Yung
- Department of Health Technology and Informatics, Faculty of Health and Social Sciene, Hong Kong Polytechnic University, Hong Kong, Hong Kong
| | - S. Yip
- Department of Health Technology and Informatics, Faculty of Health and Social Sciene, Hong Kong Polytechnic University, Hong Kong, Hong Kong
| | - L. Chan
- Department of Health Technology and Informatics, Faculty of Health and Social Sciene, Hong Kong Polytechnic University, Hong Kong, Hong Kong
| | - C. Wong
- Department of Health Technology and Informatics, Faculty of Health and Social Sciene, Hong Kong Polytechnic University, Hong Kong, Hong Kong
| | - P. Siu
- Department of Health Technology and Informatics, Faculty of Health and Social Sciene, Hong Kong Polytechnic University, Hong Kong, Hong Kong
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49
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Yang T, Pei X, Zhang Z, Kollmeier M, Spratt D, Zumsteg Z, Polkinghorn W, McBride S, Zelefsky M. Evaluation of PSA Patterns in Patients With Localized Prostate Cancer Treated With Radiation Therapy and Androgen Deprivation Therapy. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1353] [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]
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50
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Kohutek Z, Steinberger E, Pei X, Zhang Z, Shi W, Kollmeier M, Zelefsky M. Long-term Impact of Androgen Deprivation Therapy on Cardiovascular Morbidity after Radiotherapy for Clinically Localized Prostate Cancer. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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