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Li Y, Hu XZ, Liu CY, Tao XP, Wang R, Lu R, Li Y, Pu Y, Mu CR, Xu JH, Fu HM. [Clinical characteristics of children with severe SARS-CoV-2 infection in Yunnan]. Zhonghua Er Ke Za Zhi 2024; 62:451-456. [PMID: 38623013 DOI: 10.3760/cma.j.cn112140-20231201-00406] [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: 04/17/2024]
Abstract
Objective: To investigate the clinical characteristics of 130 children with severe SARS-CoV-2 infection in Yunnan province after the relaxation of non-pharmaceutical interventions, and analyze the risk factors for mortality. Methods: This study is a retrospective case summary that analyzed the demographic data, underlying diseases, clinical diagnoses, disease outcomes, and laboratory results of 130 children with severe COVID-19 infections admitted to nine top-tier hospitals in Yunnan Province from December 2022 to March 2023. According to the prognosis, the patients were divided into survival group and death group. The clinical and laboratory data between the two groups were compared, and the risk factors of death were evaluated. The χ2 test and Mann-Whitney U test were employed to compare between groups, while Spearman correlation test and multiple Logistic regression were used to analyze the risk factors for death. The predictive value of independent risk factors was evaluated by receiver operating characteristic curve. Results: The 130 severe patients included 80 males and 50 females with an onset age of 28.0 (4.5, 79.5) months. There were 97 cases in the survival group and 33 cases in the death group with no significant differences in gender and age between the two groups (P>0.05). Twenty-five cases (19.2%) out of the 130 patients had underlying diseases, and the number with underlying diseases was significantly higher in death group than in survival group (36.4% (12/33) vs. 13.4%(13/97), χ2=8.36, P=0.004). The vaccination rate in the survival group was significantly higher than that in the death group (86.1% (31/36) vs. 7/17, χ2=9.38, P=0.002). A total of 42 cases (32.3%) of the 130 patients were detected to be infected with other pathogens, but there was no significant difference in the incidence of co-infection between the death group and the survival group (39.3%(13/33) vs. 29.9% (29/97), χ2=1.02, P>0.05). Among the 130 cases, severe respiratory cases were the most common 66 cases (50.8%), followed by neurological severe illnesses 34 cases (26.2%) and circulatory severe 13 cases (10%). Compared to the survival group, patients in the death group had a significantly higher levels of neutrophil, ferritin, procalcitonin, alanine aminotransferase, lactate dehydrogenase, creatine kinase isoenzyme, B-type natriuretic peptide, interleukin-6 and 10 (6.7 (4.0, 14.0) vs. 3.0 (1.6, 7.0)×109/L, 479 (298, 594) vs. 268 (124, 424) μg/L, 4.8 (1.7, 10.6) vs. 2.0 (1.1, 3.1) μg/L, 66 (20, 258) vs. 23 (15, 49) U/L, 464 (311, 815) vs. 304 (252, 388) g/L, 71(52, 110) vs. 24(15, 48) U/L, 484 (160, 804) vs. 154 (26, 440) ng/L, 43 (23, 102) vs. 19 (13, 27) ng/L, 216 (114, 318) vs. 86 (45, 128) ng/L, Z=-4.21, -3.67, -3.76, -3.31, -3.75, -5.74, -3.55, -4.65, -5.86, all P<0.05). The correlated indexes were performed by multivariate Logistic regression and the results showed that vaccination was a protective factor from death in severe cases (OR=0.01, 95%CI 0-0.97, P=0.049) while pediatric sequential organ failure assessment (PSOFA) (OR=3.31, 95%CI 1.47-7.47, P=0.004), neutrophil-to-lymphocyte ratio (NLR) (OR=1.56, 95%CI 1.05-2.32, P=0.029) and D dimer (OR=1.49, 95%CI 1.00-1.02, P=0.033) were independent risk factors for death (all P<0.05). The area under the curve of the three independent risk factors for predicting death were 0.86 (95%CI 0.79-0.94), 0.89 (95%CI 0.84-0.95) and 0.87 (95%CI 0.80-0.94), all P<0.001, and the cut-off values were 4.50, 3.66 and 4.69 mg/L, respectively. Conclusions: Severe SARS-CoV-2 infection can occur in children of all ages, primarily affecting the respiratory system, but can also infect the nervous system, circulatory system or other systems. Children who died had more severe inflammation, tissue damage and coagulation disorders. The elevations of PSOFA, NLR and D dimer were independent risk factors for death in severe children.
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Affiliation(s)
- Y Li
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - X Z Hu
- Department of Pediatrics, the People's Hospital of Lincang, Lincang 677099, China
| | - C Y Liu
- Department of Pediatrics, Baoshan People's Hospital, Baoshan 678099, China
| | - X P Tao
- Department of Respiration, Kaiyuan Children's Hospital, Kaiyuan 661699, China
| | - R Wang
- Department of Critical Care Medicine, Yuxi Children's Hospital, Yuxi 653199, China
| | - R Lu
- Department of Pediatrics, the People's Hospital of Wenshan Prefecture, Wenshan 663099, China
| | - Y Li
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - Y Pu
- Department of Pediatrics, Gejiu People's Hospital, Gejiu 661099, China
| | - C R Mu
- Department of Pediatrics, Dali Maternal and Child Health Hospital, Dali 671013, China
| | - J H Xu
- Department of Pediatrics, Anning People's Hospital, Anning 650399, China
| | - H M Fu
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
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Yan N, Wu C, Zhou Y, Liao W, Liu J, Pu Y. A linear energy transfer distributions computation method for inhomogeneous medium by using the water equivalent ratio approximation. Radiat Prot Dosimetry 2024; 200:325-332. [PMID: 37850312 DOI: 10.1093/rpd/ncad273] [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] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 07/26/2023] [Accepted: 09/19/2023] [Indexed: 10/19/2023]
Abstract
Dose-averaged linear energy transfer (LET), LETd is widely used in proton therapy. Compared with analytical models, Monte Carlo (MC) simulations are more accurate in obtaining LETd distributions, but they are time-consuming. This study used the 3D LETd distributions of proton beam spots in water by MC simulations as a benchmark data set. Subsequently, by combining the water equivalent ratio of various human tissues, the 3D LETd distributions of clinical cases could be quickly obtained. Our method was applied to a single spot of 160 MeV proton beam in a water-bone phantom and a pelvic case. We also computed the 3D LETd distributions for multiple proton beam spots in the pelvic case and a lung case. The results of our method were compared with the results of MC simulations, demonstrating that our method can rapidly provide 3D LETd distributions of clinical cases with acceptable differences from MC simulations.
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Affiliation(s)
- Nan Yan
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chao Wu
- Medical Equipment Innovation Research Center, West China School of Medicine, Med+X Center for Manufacturing, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yun Zhou
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wentao Liao
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Junya Liu
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuehu Pu
- Medical Equipment Innovation Research Center, West China School of Medicine, Med+X Center for Manufacturing, West China Hospital, Sichuan University, Chengdu 610041, China
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Deng J, Li MT, Yang MC, Wen ZM, Li XK, Zhu CY, Wang T, Yan T, Tang M, Pu Y, Zuo HY. Different sedation profiles with ciprofol compared to propofol represented by objective sedation level assessments by BIS and its acute hemodynamic impact in 3 escalated doses of ciprofol and propofol in healthy subjects: a single-center, open-label, randomized, 2-stage, 2-way crossover trial. Eur Rev Med Pharmacol Sci 2023; 27:7914-7923. [PMID: 37750620 DOI: 10.26355/eurrev_202309_33550] [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: 09/27/2023]
Abstract
OBJECTIVE To compare the sedation profiles and the pharmacokinetic, pharmacodynamic and safety characteristics of ciprofol and propofol at 3 escalated dose levels in healthy Chinese male subjects. PATIENTS AND METHODS Eighteen subjects were planned to be enrolled into 3 dose groups in turn: group 1 (ciprofol-0.4 mg/kg vs. propofol-2.0 mg/kg), group 2 (ciprofol-0.6 mg/kg vs. propofol-3.0 mg/kg) and group 3 (ciprofol-0.8 mg/kg vs. propofol-4.0 mg/kg). They were randomly assigned into a ciprofol or propofol group in a ratio of 1:1, with sequences of ciprofol-propofol or propofol-ciprofol, separated with a washout period of at least 48 h. RESULTS A total of 19 subjects were enrolled and 18 completed the trial. The median time to being fully alert after induction by ciprofol was longer than for propofol. The bispectral index (BIS) recovered significantly slower with ciprofol than with propofol 5 min and 10 min after reaching its lowest points. Systolic blood pressure (group 1: p=0.041; group 2: p=0.015; group 3: p=0.004) and mean arterial pressures (group 1: p=0.026; group 2: p=0.015; group 3: p=0.004) measured by the area under the curve below the baseline during the 2 min after induction were significantly less for ciprofol compared to propofol, but a significant change in diastolic blood pressure was only observed in group 3 (p=0.002). Eighteen (100.0%) subjects experienced 47 ciprofol-related treatment emergent adverse events (TEAEs) and 17 (94.4%) subjects had 54 propofol-related TEAEs, which were mainly hypotension, involuntary movements, respiratory depression, and pain at the injection site with severity of grade 1 or 2. CONCLUSIONS Ciprofol may be well tolerated at higher doses in the clinical practice and exhibited significantly different sedation profiles to propofol.
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Affiliation(s)
- J Deng
- Department of Anesthesiology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.
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Kong JY, Zong LH, Pu Y, Liu Y, Kong X, Li MY, Zhang J, Song BQ, Xue SL, Tang XW, Qiu HY, Wu DP. [Clinical efficacy and safety of venetoclax combined with multidrug chemotherapy in the treatment of 15 patients with relapsed or refractory early T-cell precursor acute lymphoblastic leukemia]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:649-653. [PMID: 37803838 PMCID: PMC10520236 DOI: 10.3760/cma.j.issn.0253-2727.2023.08.006] [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] [Received: 10/20/2022] [Indexed: 10/08/2023]
Abstract
Objective: To explore the efficacy and safety of Venetoclax combined with multidrug chemotherapy in patients with relapsed or refractory early T-cell precursor acute lymphoblastic leukemia (R/R ETP-ALL) . Methods: This study retrospectively analyzed 15 patients with R/R ETP-ALL who received Venetoclax combined with multidrug chemotherapy from December 2018 to February 2022. Among them, eight cases were combined with demethylated drugs, four cases were combined with demethylated drugs and HAAG chemotherapy regimen, two cases were combined with demethylated drugs and CAG regimen, and one case was combined with Cladribine. Specific usage and dosage of Venetoclax: 100 mg on day 1, 200 mg on day 2, 400 mg on day 3-28, orally; when combined with azole antifungal drugs, dosage was reduced to 100 mg/d. Results: Fifteen patients (10 males and 5 females) with R/R ETP-ALL were treated with Venetoclax and multidrug chemotherapy with a median age of 35 (12-42) years old. Of 4 refractory and 11 relapsed patients, the efficacy was evaluated on the 21th day following combined chemotherapy: the overall response rate, the complete response (CR) rate, and the CR with incomplete hematological recovery (CRi) rate were 67.7% (10/15), 60.0% (9/15), and 6.7% (1/15), respectively. For the overall study population, the 12-month overall survival (OS) rate was 60.0%, and the median OS was 17.7 months. The disease-free survival (DFS) rate of all CR patients at 12 months was 60.0%, and the median DFS did not reach. About 14 patients had Ⅲ-Ⅳ hematological toxicity, but these adverse reactions were all controllable. No adverse reaction in the nervous system and tumor lysis syndrome occurred in this study, and no adverse reaction of organs above grade Ⅲ occurred. Conclusion: Venetoclax combined with multidrug chemotherapy may be a safe and promising treatment option for patients with R/R ETP-ALL.
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Affiliation(s)
- J Y Kong
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - L H Zong
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - Y Pu
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - Y Liu
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - X Kong
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - M Y Li
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - J Zhang
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - B Q Song
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - S L Xue
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - X W Tang
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - H Y Qiu
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - D P Wu
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
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Krutyanskiy V, Galli M, Krcmarsky V, Baier S, Fioretto DA, Pu Y, Mazloom A, Sekatski P, Canteri M, Teller M, Schupp J, Bate J, Meraner M, Sangouard N, Lanyon BP, Northup TE. Entanglement of Trapped-Ion Qubits Separated by 230 Meters. Phys Rev Lett 2023; 130:050803. [PMID: 36800448 DOI: 10.1103/physrevlett.130.050803] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 12/20/2022] [Indexed: 06/18/2023]
Abstract
We report on an elementary quantum network of two atomic ions separated by 230 m. The ions are trapped in different buildings and connected with 520(2) m of optical fiber. At each network node, the electronic state of an ion is entangled with the polarization state of a single cavity photon; subsequent to interference of the photons at a beam splitter, photon detection heralds entanglement between the two ions. Fidelities of up to (88.0+2.2-4.7)% are achieved with respect to a maximally entangled Bell state, with a success probability of 4×10^{-5}. We analyze the routes to improve these metrics, paving the way for long-distance networks of entangled quantum processors.
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Affiliation(s)
- V Krutyanskiy
- Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, Technikerstraße 21a, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
| | - M Galli
- Institut für Experimentalphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
| | - V Krcmarsky
- Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, Technikerstraße 21a, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
| | - S Baier
- Institut für Experimentalphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
| | - D A Fioretto
- Institut für Experimentalphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
| | - Y Pu
- Institut für Experimentalphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
| | - A Mazloom
- Department of Physics, Georgetown University, 37th and O Streets NW, Washington, D.C. 20057, USA
| | - P Sekatski
- Department of Applied Physics, University of Geneva, 1211 Geneva, Switzerland
| | - M Canteri
- Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, Technikerstraße 21a, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
| | - M Teller
- Institut für Experimentalphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
| | - J Schupp
- Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, Technikerstraße 21a, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
| | - J Bate
- Institut für Experimentalphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
| | - M Meraner
- Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, Technikerstraße 21a, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
| | - N Sangouard
- Institut de Physique Théorique, Université Paris-Saclay, CEA, CNRS, 91191 Gif-sur-Yvette, France
| | - B P Lanyon
- Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, Technikerstraße 21a, 6020 Innsbruck, Austria
- Institut für Experimentalphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
| | - T E Northup
- Institut für Experimentalphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria
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Peng H, Wu C, Nguyen D, Schuemann J, Mairani A, Pu Y, Jiang S. Recent Advancements of Artificial Intelligence in Particle Therapy. IEEE Trans Radiat Plasma Med Sci 2023. [DOI: 10.1109/trpms.2023.3241102] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Hao Peng
- Department of Radiation Oncology, Medical Artificial Intelligence and Automation (MAIA) Laboratory, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Chao Wu
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China
| | - Dan Nguyen
- Department of Radiation Oncology, Medical Artificial Intelligence and Automation (MAIA) Laboratory, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Jan Schuemann
- Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Andrea Mairani
- Heidelberg Ion Beam Therapy Center, Heidelberg University Hospital, Heidelberg, Germany
| | - Yuehu Pu
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China
| | - Steve Jiang
- Department of Radiation Oncology, Medical Artificial Intelligence and Automation (MAIA) Laboratory, University of Texas Southwestern Medical Center, Dallas, TX, USA
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Pu Y, Liu Q, Liu H, Bai H, Huang W, Xi M, Fan P. Association between CYP2E1 C-1054T and 96-bp I/D genetic variations and the risk of polycystic ovary syndrome in Chinese women. J Endocrinol Invest 2023; 46:67-78. [PMID: 35943720 DOI: 10.1007/s40618-022-01885-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 07/27/2022] [Indexed: 01/12/2023]
Abstract
PURPOSE To investigate the association of cytochrome P450 2E1 (CYP2E1) C-1054T (rs2031920) and 96-bp I/D genetic variations with the risk of polycystic ovary syndrome (PCOS), and to estimate the effects of genotypes on the clinical, metabolic, hormonal, and oxidative stress indicators. METHODS This case-control study included 762 control women and 1034 patients with PCOS. Genotypes were determined using polymerase chain reaction and/or restriction fragment length polymorphism analysis. Clinical and biochemical parameters were also analyzed. RESULTS Frequencies of the TT + CT genotype (35.4 vs. 28.9%) and T allele (19.6 vs. 16.0%) of the CYP2E1 C-1054T polymorphism were significantly higher in the PCOS group than in the control group (OR = 1.350, 95% CI 1.103-1.652, P = 0.004 for the dominant model). Genotype TT + CT remained a significant predictor of PCOS in a logistic regression model including age, body mass index (BMI), and recruitment year of participants (OR = 1.345, 95% CI 1.071-1.688, P = 0.011). No statistical differences were found in the genotype and allele frequencies of CYP2E1 96-bp I/D polymorphism. However, the combined genotype DD/TT + CT was related to an increased risk of PCOS when the DD/CC wild-type combined genotype was used as a reference. Patients with the I allele of 96-bp I/D polymorphism had a lower BMI but higher plasma apolipoprotein B and oxidized low-density lipoprotein cholesterol levels than those with the DD genotype. CONCLUSION CYP2E1 C-1054T, but not 96-bp I/D, genetic polymorphism is associated with an increased risk of PCOS in Chinese women.
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Affiliation(s)
- Y Pu
- Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - Q Liu
- Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - H Liu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - H Bai
- Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - W Huang
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - M Xi
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China
| | - P Fan
- Laboratory of Genetic Disease and Perinatal Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China.
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Song X, Ding Q, Wei W, Pu Y. LP-05 A Novel Targeted Prussian Blue-Based Nanomaterial for Inhibiting Oxidative Stress and Aβ Aggregation of Alzheimer’s Disease. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.749] [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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Yan C, Hui Z, Wang Q, Xiao S, Pu Y, Wang Q, Wang T, You J, Ren X. OA09.03 Single Cell Analyses Reveal Effects of Immunosenescence Cells in Neoadjuvant Immunotherapy of Lung Squamous cell Carcinoma Patients. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.048] [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: 10/14/2022]
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Zeng Y, Pu Y, Niu L, Deng J, Zeng D, Amato K, Li Y, Zhou Y, Lin Y, Wang J, Wu L, Chen B, Pan K, Jing B, Ni X. Comparison of gastrointestinal microbiota in golden snub-nosed monkey (Rhinopithecus roxellanae), green monkey (Chlorocebus aethiops sabaeus), and ring-tailed lemur (Lemur catta) by high throughput sequencing. Glob Ecol Conserv 2022. [DOI: 10.1016/j.gecco.2021.e01946] [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: 10/19/2022] Open
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Pu Y, Yao QM, Zhong JJ, Yu CM. [Three cases of mushroom poisoning caused by lethal Amanita species]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 39:787-788. [PMID: 34727664 DOI: 10.3760/cma.j.cn121094-20201221-00707] [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: 11/05/2022]
Abstract
Mushroom poisoning with amatoxins can cause liver dysfunction in patients, and death in severe cases. The amatoxins detection by enzyme-linked immunosorbent assay (ELISA) can help early clinical diagnosis. Three patients were identified as α-amatoxin containing mushroom poisoning by ELISA. The first symptoms of patients was gastrointestinal symptoms, and liver function damage occured later. One patient gave up treatment and died. After received supportive treatments such as adsorption of toxins, catharsis, fluid supplementation to promote toxin metabolism and liver protection, 2 patients were recovered and discharged.
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Affiliation(s)
- Y Pu
- The People's Hospital of Chuxiong Yi Autonomous Prefecture, Chuxiong 675000, China
| | - Q M Yao
- The People's Hospital of Chuxiong Yi Autonomous Prefecture, Chuxiong 675000, China
| | - J J Zhong
- The People's Hospital of Chuxiong Yi Autonomous Prefecture, Chuxiong 675000, China
| | - C M Yu
- The People's Hospital of Chuxiong Yi Autonomous Prefecture, Chuxiong 675000, China
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Wang S, Ou W, Li N, Wang S, Wu H, Pu Y, Xiao S, Fu Y, Wang T. P22.05 Dynamic Monitoring of Blood Samples by PEAC Technology for Early-Stage Lung Cancer Patients After Surgery. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.359] [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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13
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Pu Y, Xiao S, Fu Y, Wang T. P24.07 An Ultra-Sensitive Protocol for ctDNA Mutation Detection With Application in Lung Cancers. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.372] [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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14
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Xie L, Pu Y, Yu C, Zhang X, Zheng L. Transfacial lithotomy approach to intraparenchymal stones in the submandibular gland: our primary exploration. Br J Oral Maxillofac Surg 2021; 60:201-203. [PMID: 34774349 DOI: 10.1016/j.bjoms.2021.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 03/09/2021] [Indexed: 10/21/2022]
Abstract
The article describes our exploration of a sialendoscopy-assisted transfacial sialolithotomy approach to intraparenchymal stones in the submandibular gland with gland preservation. Five patients with large intraparenchymal stones in the submandibular gland were included. Ultrasonography and computed tomograms (CT) were performed to locate the stones. As the large stones failed to be retrieved during endoscopy, patients were treated by a transfacial lithotomy approach with sialendoscopy. The glands were preserved in all cases. This approach can be considered an optional technique for the treatment of large intraparenchymal stones in the submandibular gland that fail to be removed during a transoral procedure.
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Affiliation(s)
- L Xie
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Clinical Research Center of Oral Disease, Shanghai, China; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Y Pu
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Clinical Research Center of Oral Disease, Shanghai, China; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - C Yu
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Clinical Research Center of Oral Disease, Shanghai, China; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - X Zhang
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Clinical Research Center of Oral Disease, Shanghai, China; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China.
| | - L Zheng
- Department of Oral Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Clinical Research Center of Oral Disease, Shanghai, China; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China.
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15
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Zhang B, Yue D, Gao L, Li C, Xiao S, Pu Y, Lin R, Wang T, Wang C. P59.05 Multi-Omic Analysis Between Tumor Tissues from Early and Late Stage Non-Small Cell Lung Cancer Patients. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Wu C, Nguyen D, Xing Y, Montero AB, Schuemann J, Shang H, Pu Y, Jiang S. Improving Proton Dose Calculation Accuracy by Using Deep Learning. Mach Learn Sci Technol 2021; 2:015017. [PMID: 35965743 PMCID: PMC9374098 DOI: 10.1088/2632-2153/abb6d5] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 08/18/2020] [Accepted: 09/09/2020] [Indexed: 12/28/2022] Open
Abstract
Introduction Pencil beam (PB) dose calculation is fast but inaccurate due to the approximations when dealing with inhomogeneities. Monte Carlo (MC) dose calculation is the most accurate method but it is time consuming. The aim of this study was to develop a deep learning model that can boost the accuracy of PB dose calculation to the level of MC dose by converting PB dose to MC dose for different tumor sites. Methods The proposed model uses the PB dose and CT image as inputs to generate the MC dose. We used 290 patients (90 head and neck, 93 liver, 75 prostate and 32 lung) to train, validate, and test the model. For each tumor site, we performed four numerical experiments to explore various combinations of training datasets. Results Training the model on data from all tumor sites together and using the dose distribution of each individual beam as input yielded the best performance for all four tumor sites. The average gamma passing rate (1mm/1%) between the converted and the MC dose was 92.8%, 92.7%, 89.7% and 99.6% for head and neck, liver, lung, and prostate test patients, respectively. The average dose conversion time for a single field was less than 4 seconds. The trained model can be adapted to new datasets through transfer learning. Conclusions Our deep learning-based approach can quickly boost the accuracy of PB dose to that of MC dose. The developed model can be added to the clinical workflow of proton treatment planning to improve dose calculation accuracy.
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Affiliation(s)
- Chao Wu
- Medical Artificial Intelligence and Automation (MAIA) Laboratory, Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, United States of America
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing, People’s Republic of China
| | - Dan Nguyen
- Medical Artificial Intelligence and Automation (MAIA) Laboratory, Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, United States of America
| | - Yixun Xing
- Medical Artificial Intelligence and Automation (MAIA) Laboratory, Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, United States of America
| | - Ana Barragan Montero
- University of Chinese Academy of Sciences, Beijing, People’s Republic of China
- Molecular Imaging Radiation Oncology (MIRO) Laboratory, UCLouvain, Brussels, Belgium
| | - Jan Schuemann
- Department of Radiation Oncology, Massachusetts General Hospital, Boston, MA, United States of America
| | - Haijiao Shang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing, People’s Republic of China
| | - Yuehu Pu
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, People’s Republic of China
| | - Steve Jiang
- Medical Artificial Intelligence and Automation (MAIA) Laboratory, Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX, United States of America
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Wang C, Yue D, Ma Y, Zhang Q, Li Y, Zhang B, Xiao S, Pu Y, Lin R, Wang T. P60.06 Single Cell Sequencing Analysis Revealed Altered Lung Cancer Microenvironment by Neoadjuvant Immunotherapy. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.965] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Shang H, Pu Y, Chen Z, Wang X, Yuan C, Jin X, Liu C. Impact of Multiple Beams on Plan Quality, Linear Energy Transfer Distribution, and Plan Robustness of Intensity Modulated Proton Therapy for Lung Cancer. ACS Sens 2021; 6:408-417. [PMID: 33125211 DOI: 10.1021/acssensors.0c01879] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The increase of proton beam number might provide higher degrees of freedom in the optimization of intensity-modulated proton therapy planning. In this study, we aimed to quantitatively explore the potential benefits of the increased beam number, including dose volume histogram (DVH), linear energy transfer volume histogram, and DVH bandwidth metrics. Twelve patients with lung cancer are retrospectively selected. Four plans were created based on internal target volume (ITV) robust optimization for each patient using the RayStation treatment planning system. Four plans were generated using different numbers (three, five, seven, and nine) of evenly separated coplanar beams. The three-beam plan was considered as the reference plan. Biologically equivalent doses were calculated using both constant relative biological effectiveness (RBE) and variable RBE models, respectively. To evaluate plan quality, DVH metrics in the target [ITV: D2%, CI, HI] and organs-at-risk [Lung: V5Gy[RBE], V20Gy[RBE], V30Gy[RBE]; Heart D2%; Spinal cord D2%] were calculated using both RBE models. To evaluate LET distributions, LET volume histogram metrics [ITV LETmean and LET2%; Lung LETmean and LET2%; Heart LET2%; Spinal cord LET2%] were quantified. To evaluate plan robustness, the metrics using DVH bandwidth [ITV: D2%, D99%; Lung: V5Gy[RBE], V20Gy[RBE], V30Gy[RBE]; Heart D2%; Spinal cord D2%] were also reported. For plan quality, the increase of proton beam number resulted in fewer target hot spots, improved target dose conformity, improved target dose homogeneity, lower median-dose lung volume, and fewer hot spots in spinal cord. As to LET distributions, target mean LET increased significantly as the beam number increased to seven or more. Lung LET hot spots were significantly reduced with the increase of proton beams. With respect to plan robustness, the robustness of target dose coverage, target hot spots, and low-dose lung volume were improved, while the robustness of heart hot spots became worse as the beam number increased to nine. The robustness of cord hot spots became worse using five and seven beams compared to that using three beams. As the proton beam number increased, plan quality and LET distributions were comparable or significantly improved. The robustness of target dose coverage, target dose hot spots, and low-dose lung volume were significantly improved.
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Affiliation(s)
- Haijiao Shang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- RaySearch China, Shanghai, 200120, P. R. China
| | - Yuehu Pu
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Zhiling Chen
- Shanghai Advanced Research Institute, Chinese Academy Sciences, Shanghai, 201210, P. R. China
| | - Xuetao Wang
- Department of Radiation Oncology, West China Hospital, Sichuan University, Chengdu, 610041, P. R. China
| | - Cuiyun Yuan
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, 518116, P. R. China
| | - Xiance Jin
- Department of Radiation and Medical Oncology, The 1st Affiliated Hospital of Wenzhou Medical University, Wenzhou, 32500, P. R. China
| | - Chenbin Liu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, 518116, P. R. China
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Abstract
Purpose: Setup uncertainty is a known challenge for stereotactic body radiotherapy planning. Using the internal target volume-based robust optimization was proposed as a more accurate way than the conventional planning target volume-based optimization when considering the robustness criteria. In this study, we aim to investigate the feasibility of internal target volume-based robust optimization in stereotactic body radiotherapy planning using 4-dimensional computed tomography and develop a novel dose–volume histogram band width metric to quantitatively evaluate robustness. Method and Materials: A total of 50 patients with early stage non-small cell lung cancer, who underwent stereotactic body radiotherapy, were retrospectively selected. Each of the 50 patients had 2 stereotactic body radiotherapy plans: one with the conventional planning target volume-based optimization and the other with patient-specific robustly optimized internal target volume and with a uniform 5 mm setup error. These were compared with the planning target volume-based optimization method based on both plan quality and robustness. The quality was evaluated using dosimetric parameters and radiobiology parameters, such as high-dose spillage (V90%RX, conformity index), intermediate-dose spillage (dose falloff products), low-dose spillage (normal tissue: V50%RX), and lung tissue complication probability. The robustness was evaluated under a uniform 3 to 5 mm setup errors with a novel proposed metric: dose–volume histogram band width. Results: When compared with planning target volume-based optimization plans, the internal target volume-based robust optimization plans have better conformity of internal target volume coverage (conformity index: 1.17 vs 1.27, P < .001), intermediate-dose spillage (dose falloff product: 129 vs 167, P < .001), low-dose spillage in normal tissue (V50%RX: 0.8% vs 1.5%, P < .05), and lower risk of radiation pneumonitis (lung tissue complication probability: 4.2% vs 5.5%, P < .001). For the robustness, dose–volume histogram band width analysis shows that the average values in internal target volume, D95%, D98%, and D99%, of internal target volume-based robust optimization are smaller than that of planning target volume-based optimization (unit cGy) under 3-, 4-, and 5-mm setup uncertainties (3-mm setup uncertainty: 42 vs 73 cGy; 4-mm setup uncertainty: 88 vs 176 cGy; 5-mm setup uncertainty: 229 vs 490 cGy), which might indicate that internal target volume-based robust optimization harbored a greater robustness regardless of the setup errors. Conclusions: Internal target volume-based robust optimization may have clinical potential in offering better plan quality in both target and organs at risk and lower risk of radiation pneumonitis. In addition, the proposed internal target volume-based robust optimization may demonstrate robustness regardless of different setup uncertainties in the stereotactic body radiotherapy planning. Registration: Retrospective study with local ethics committee approval.
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Affiliation(s)
- Haijiao Shang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, People's Republic of China.,University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Yuehu Pu
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, People's Republic of China.,University of Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Yuenan Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, People's Republic of China
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Pu Y, Liu X, Wang Y, Meng X, Jing J, Zou X, Pan Y, Wang A, Zhao X, Johnston SC, Wang Y, Atchaneeyasakul K, Liebeskind DS, Liu L. Higher early recurrence risk and potential benefit of dual antiplatelet therapy for minor stroke with watershed infarction: subgroup analysis of CHANCE. Eur J Neurol 2020; 27:800-808. [PMID: 31997490 DOI: 10.1111/ene.14156] [Citation(s) in RCA: 2] [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] [Received: 06/22/2019] [Accepted: 01/17/2020] [Indexed: 01/05/2023]
Affiliation(s)
- Y. Pu
- Department of Neurology Beijing Tiantan Hospital Capital Medical University Beijing China
| | - X. Liu
- Department of Neurology Beijing Tiantan Hospital Capital Medical University Beijing China
| | - Y. Wang
- Department of Neurology Beijing Tiantan Hospital Capital Medical University Beijing China
- China National Clinical Research Center for Neurological Diseases Beijing China
- Center of Stroke Beijing Institute for Brain Disorders Beijing China
- Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease Beijing China
| | - X. Meng
- Department of Neurology Beijing Tiantan Hospital Capital Medical University Beijing China
- China National Clinical Research Center for Neurological Diseases Beijing China
- Center of Stroke Beijing Institute for Brain Disorders Beijing China
- Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease Beijing China
| | - J. Jing
- Department of Neurology Beijing Tiantan Hospital Capital Medical University Beijing China
- China National Clinical Research Center for Neurological Diseases Beijing China
- Center of Stroke Beijing Institute for Brain Disorders Beijing China
- Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease Beijing China
| | - X. Zou
- Department of Neurology Beijing Tiantan Hospital Capital Medical University Beijing China
| | - Y. Pan
- Department of Neurology Beijing Tiantan Hospital Capital Medical University Beijing China
- China National Clinical Research Center for Neurological Diseases Beijing China
- Center of Stroke Beijing Institute for Brain Disorders Beijing China
- Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease Beijing China
| | - A. Wang
- Department of Neurology Beijing Tiantan Hospital Capital Medical University Beijing China
- China National Clinical Research Center for Neurological Diseases Beijing China
- Center of Stroke Beijing Institute for Brain Disorders Beijing China
- Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease Beijing China
| | - X. Zhao
- Department of Neurology Beijing Tiantan Hospital Capital Medical University Beijing China
- China National Clinical Research Center for Neurological Diseases Beijing China
- Center of Stroke Beijing Institute for Brain Disorders Beijing China
- Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease Beijing China
| | - S. C. Johnston
- Dell Medical School University of Texas at Austin TX USA
| | - Y. Wang
- Department of Neurology Beijing Tiantan Hospital Capital Medical University Beijing China
- China National Clinical Research Center for Neurological Diseases Beijing China
- Center of Stroke Beijing Institute for Brain Disorders Beijing China
- Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease Beijing China
| | | | | | - L. Liu
- Department of Neurology Beijing Tiantan Hospital Capital Medical University Beijing China
- China National Clinical Research Center for Neurological Diseases Beijing China
- Center of Stroke Beijing Institute for Brain Disorders Beijing China
- Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease Beijing China
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Shang H, Pu Y, Wang W, Dai Z, Jin F. Evaluation of plan quality and robustness of IMPT and helical IMRT for cervical cancer. Radiat Oncol 2020; 15:34. [PMID: 32054496 PMCID: PMC7020599 DOI: 10.1186/s13014-020-1483-x] [Citation(s) in RCA: 4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 02/04/2020] [Indexed: 12/24/2022] Open
Abstract
Background Both plan quality and robustness were investigated through comparing some dosimetric metrics between intensity modulated proton therapy (IMPT) and helical tomotherapy based intensity modulated radiotherapy (IMRT) for cervical cancer. Methods Both a spot-scanning robust (SRO) IMPT plan and a helical tomotherapy robust (TRO) IMRT plan were generated for each of 18 patients. In order to evaluate the quality of nominal plans without dose perturbations, planning scores (PS) on clinical target volume (CTV) and five organs at risk (OARs) based on clinical experience, and normal tissue complication probabilities (NTCP) of rectum and sigmoid were calculated based on Lyman-Kutcher-Burman (LKB) model. Dose volume histogram bands width (DVHBW) were calculated in 28 perturbed scenarios to evaluate plan robustness. Results Compared with TRO, the average scores of SRO nominal plans were higher in target metrics [V46.8Gy, V50Gy, Conformity and Homogeneity](16.5 vs. 15.1), and in OARs metrics (60.9 vs. 53.3), including bladder [V35,V45, Dmean,D2cc], rectum [V40,V45,D2cc,Dmax], bowel [V35,V40,V45, Dmax], sigmoid [V40,Dmax] and femoral heads [V30,Dmax]. Meanwhile, NTCP calculation showed that the toxicities of rectum and sigmoid in SRO were lower than those in TRO (rectum: 2.8% vs. 4.8%, p < 0.05; sigmoid: 5.2% vs. 5.7%, p < 0.05). DVHBW in target coverage for the SRO plan was smaller than that for the TRO plan (0.6% vs. 2.1%), which means that the SRO plan generated a more robust plan in target. Conclusion Better CTV coverage and OAR Sparing were obtained in SRO nominal plan. Based on NTCP calculation, SRO was expected to allow a small reduction in rectal toxicity. Furthermore, SRO generated a more robust plan in CTV target coverage.
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Affiliation(s)
- Haijiao Shang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 201800, Shanghai, People's Republic of China.,University of Chinese Academy of Sciences, 100049, Beijing, People's Republic of China.,RaySearch China, 200120, Shanghai, People's Republic of China
| | - Yuehu Pu
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 201800, Shanghai, People's Republic of China.,University of Chinese Academy of Sciences, 100049, Beijing, People's Republic of China
| | - Wei Wang
- Department of Radiation Oncology, Xinhua hospital affiliated to shanghai Jiao tong university school of medicine, Shanghai, People's Republic of China
| | - Zhitao Dai
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, People's Republic of China. .,School of Physics and Technology, Wuhan University, Wuhan, 430072, People's Republic of China.
| | - Fu Jin
- Department of Radiation Oncology, Chongqing University Cancer Hospital & Chongqing Cancer Institute & Chongqing Cancer Hospital, No. 181 Hanyu Road, Shapingba District, Chongqing, 400030, People's Republic of China.
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Lin R, Pu Y, Wang T. P1.03-22 A Novel Method for Detecting Low Abundant Mutants in Three Types of Liquid Biopsies by Capturing Mutant-Alleles. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.874] [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: 10/25/2022]
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Lin R, Liu T, Liu Y, Li N, Pu Y, Wang T. P2.03-27 Discovery of WNK1-ROS1 Fusion in a Lung Adenocarcinoma Patient and the Precise Guidance for Targeted Therapies. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1474] [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: 10/25/2022]
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Wang FP, Fan YQ, Liu T, Wang G, Pu Y, Li SY, Mao H. Effect of Aminophylline on Mouse Bone Marrow-Derived Eosinophils In Vitro. B33. ASTHMA: MECHANISMS OF DISEASE II 2019. [DOI: 10.1164/ajrccm-conference.2019.199.1_meetingabstracts.a2938] [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)
- F.-P. Wang
- West China Hospital, Sichuan University, Chengdu, China
| | - Y.-Q. Fan
- West China Hospital, Sichuan University, Chengdu, China
| | - T. Liu
- West China Hospital, Sichuan University, Chengdu, China
| | - G. Wang
- West China Hospital, Sichuan University, Chengdu, China
| | - Y. Pu
- West China Hospital, Sichuan University, Chengdu, China
| | - S.-Y. Li
- First Affiliated Hospital of Henan College of Traditional Chinese Medicine, Zhengzhou, China
| | - H. Mao
- West China Hospital, Sichuan University, Chengdu, China
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Pu Y, Sun R, Sun F, Zhang J, Yin L, Man Z, Pu Y. Role of Hif-1a and its target gene PTP4A3 in regulating cell proliferation during benzene exposure. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.862] [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: 10/28/2022]
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Liang G, Sui J, Wu W, Liu T, Xu S, Yin L, Pu Y. Trends on PM2.5 research, 1997–2016: a bibliometric study. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.779] [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: 10/28/2022]
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Chen X, Ma L, Dong Y, Song H, Pu Y, Zhou Q. Evaluation of the differences in phenolic compounds and antioxidant activities of five green asparagus (Asparagus officinalis L.) cultivars. Quality Assurance and Safety of Crops & Foods 2017. [DOI: 10.3920/qas2017.1082] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- X.H. Chen
- College of Food Engineering, Xuzhou Institute of Technology, Xuzhou 221000, China P.R
| | - L.H. Ma
- College of Food Engineering, Xuzhou Institute of Technology, Xuzhou 221000, China P.R
| | - Y.W. Dong
- College of Food Engineering, Xuzhou Institute of Technology, Xuzhou 221000, China P.R
| | - H. Song
- College of Food Engineering, Xuzhou Institute of Technology, Xuzhou 221000, China P.R
| | - Y. Pu
- College of Food Engineering, Xuzhou Institute of Technology, Xuzhou 221000, China P.R
| | - Q.Y. Zhou
- College of Food Engineering, Xuzhou Institute of Technology, Xuzhou 221000, China P.R
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Miao Y, Liu R, Pu Y, Yin L. Prevalence and genotyping of HPV infection in Jiangsu, a high-risk region for esophageal cancer in China. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx652.002] [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: 11/13/2022] Open
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Pu Y, Wang Y, Huang X, Chen S, Wang Z, Sun G, Tang E, Zhao S, Ni Y, Hu Q. The influence of mild dysplasia at the surgical margin on the prognosis of oral squamous cell carcinoma. Int J Oral Maxillofac Surg 2016; 45:1372-1377. [DOI: 10.1016/j.ijom.2016.08.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 06/21/2016] [Accepted: 08/22/2016] [Indexed: 11/26/2022]
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30
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Sun R, Yin L, Pu Y. The effects of acetyl-l-carnitine to mouse bone marrow cells against benzene induced mitochondrial dysfunction and oxidative stress. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.06.1861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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31
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Liu R, Jian Z, Yang D, Pu Y, Yin L. Di(2-ethylhexyl) phthalate induced reproductive toxicity involved in DNA damage-dependent oocyte apoptosis using alternative Caenorhabditis elegans model. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.06.1338] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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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Michelle Xu M, Pu Y, Weichselbaum RR, Fu YX. Integrating conventional and antibody-based targeted anticancer treatment into immunotherapy. Oncogene 2016; 36:585-592. [PMID: 27425593 PMCID: PMC5243926 DOI: 10.1038/onc.2016.231] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 04/17/2016] [Accepted: 04/28/2016] [Indexed: 12/18/2022]
Abstract
In advanced cancer, current conventional therapies or immunotherapies cannot eradicate all tumor cells for most patients. Integration of these two treatments for synergistic effects could eradicate more tumor cells and increase overall survival rates. But proper integration is a challenge, partly due to a poor understanding of the impact of conventional treatment on immune responses. Intensive chemo/radiotherapy may impair ongoing immune responses whilst lower intensity of therapy might not kill enough tumor cells, both leading to tumor relapse. Current understanding of mechanisms of resistance to conventional and targeted cancer therapies has focused on cell intrinsic pathways that trigger DNA damage/repair or signaling pathways related to cell growth. Recent reports show that host T cells properly primed against tumor specific antigens after conventional treatment can integrate with direct cytotoxic effects induced by radiation or chemotherapy to profoundly control tumors. Following cytotoxic anticancer treatment, tumor derived DAMPs (damage-associated molecular patterns) can be sensed by innate cells which drives type I interferon (IFNs production) for cross priming of CD8+ T cells. Some types and protocols of chemotherapy or radiation can increase tumor infiltrating lymphocytes that overcome resistance to immunotherapy. As such, a deeper understanding to the immune mechanisms of conventional and targeted cancer therapies will lead toward novel combinatorial anticancer strategies with improved clinical benefit.
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Affiliation(s)
- M Michelle Xu
- Department of Pathology and Radiation Oncology, University of Chicago, Chicago, IL, USA.,Ludwig Center for Metastasis Research, University of Chicago, Chicago, IL, USA
| | - Y Pu
- Department of Pathology and Immunology, The University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - R R Weichselbaum
- Department of Pathology and Radiation Oncology, University of Chicago, Chicago, IL, USA
| | - Y-X Fu
- Department of Pathology and Radiation Oncology, University of Chicago, Chicago, IL, USA.,Ludwig Center for Metastasis Research, University of Chicago, Chicago, IL, USA.,Department of Pathology and Immunology, The University of Texas Southwestern Medical Center, Dallas, TX, USA
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Abstract
Human jaw bone marrow mesenchymal stem cells (h-JBMMSCs) are multipotent progenitor cells with osteogenic differentiation potential. The relationship between adiponectin (APN) and the metabolism of h-JBMMSCs has not been fully elucidated, and the underlying mechanism remains unclear. The aim of the study was to investigate the effect and mechanism of APN on h-JBMMSC metabolism. h-JBMMSCs were obtained from the primary culture of human jaw bones and treated with or without APN (1 µg/mL). Osteogenesis-related gene expression was evaluated by real-time polymerase chain reaction (PCR), alkaline phosphatase (ALP) activity assay, and enzyme-linked immunosorbent assay (ELISA). To further investigate the signaling pathway, mechanistic studies were performed using Western blotting, immunofluorescence, lentiviral transduction, and SB202190 (a specific p38 inhibitor). Alizarin Red staining showed that APN promoted h-JBMMSC osteogenesis. Real-time PCR, ALP assay, and ELISA showed that ALP, osteocalcin (OCN), osteopontin, and integrin-binding sialoprotein were up-regulated in APN-treated cells compared to untreated controls. Immunofluorescence revealed that adaptor protein containing a pleckstrin homology domain, phosphotyrosine domain, and leucine zipper motif (APPL1) translocated from the nucleus to the cytoplasm with APN treatment. Additionally, the phosphorylation of p38 mitogen-activated protein kinase (MAPK) increased over time with APN treatment. Moreover, knockdown of APPL1 or p38 MAPK inhibition blocked the expression of APN-induced calcification-related genes including ALP, Runt-related transcription factor 2 (RUNX2), and OCN. Furthermore, Alizarin Red staining of calcium nodes was not increased by the knockdown of APPL1 or p38 inhibition. Our data suggest that this regulation is mediated through the APPL1–p38 MAPK signaling pathway. These findings collectively provide evidence that APN induces the osteogenesis of h-JBMMSCs through APPL1-mediated p38 MAPK activation.
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Affiliation(s)
- Y. Pu
- 2nd Dental Center, Peking University School and Hospital of Stomatology, Beijing, China
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, China
| | - H. Wu
- 2nd Dental Center, Peking University School and Hospital of Stomatology, Beijing, China
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, China
| | - S. Lu
- 2nd Dental Center, Peking University School and Hospital of Stomatology, Beijing, China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - H. Hu
- 2nd Dental Center, Peking University School and Hospital of Stomatology, Beijing, China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - D. Li
- 2nd Dental Center, Peking University School and Hospital of Stomatology, Beijing, China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Y. Wu
- 2nd Dental Center, Peking University School and Hospital of Stomatology, Beijing, China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Z. Tang
- 2nd Dental Center, Peking University School and Hospital of Stomatology, Beijing, China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
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Pu Y, Odenthal PM, Adur R, Beardsley J, Swartz AG, Pelekhov DV, Flatté ME, Kawakami RK, Pelz J, Hammel PC, Johnston-Halperin E. Ferromagnetic Resonance Spin Pumping and Electrical Spin Injection in Silicon-Based Metal-Oxide-Semiconductor Heterostructures. Phys Rev Lett 2015; 115:246602. [PMID: 26705647 DOI: 10.1103/physrevlett.115.246602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Indexed: 06/05/2023]
Abstract
We present the measurement of ferromagnetic resonance (FMR-)driven spin pumping and three-terminal electrical spin injection within the same silicon-based device. Both effects manifest in a dc spin accumulation voltage V_{s} that is suppressed as an applied field is rotated to the out-of-plane direction, i.e., the oblique Hanle geometry. Comparison of V_{s} between these two spin injection mechanisms reveals an anomalously strong suppression of FMR-driven spin pumping with increasing out-of-plane field H_{app}^{z}. We propose that the presence of the large ac component to the spin current generated by the spin pumping approach, expected to exceed the dc value by 2 orders of magnitude, is the origin of this discrepancy through its influence on the spin dynamics at the oxide-silicon interface. This convolution, wherein the dynamics of both the injector and the interface play a significant role in the spin accumulation, represents a new regime for spin injection that is not well described by existing models of either FMR-driven spin pumping or electrical spin injection.
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Affiliation(s)
- Y Pu
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - P M Odenthal
- Department of Physics and Astronomy, University of California, Riverside, California 92521, USA
| | - R Adur
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - J Beardsley
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - A G Swartz
- Department of Physics and Astronomy, University of California, Riverside, California 92521, USA
| | - D V Pelekhov
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - M E Flatté
- Departent of Physics and Astronomy, University of Iowa, Iowa City, Iowa 52242, USA
| | - R K Kawakami
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
- Department of Physics and Astronomy, University of California, Riverside, California 92521, USA
| | - J Pelz
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - P C Hammel
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
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35
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Chen P, Pu Y, Zhou B, Wang Y, Tang T, Zhang P, Zhang L. Association between two single nucleotide polymorphisms of interleukin-27 gene and increased cryptorchidism risk. Andrologia 2015; 48:193-7. [PMID: 25988814 DOI: 10.1111/and.12432] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/18/2015] [Indexed: 02/05/2023] Open
Abstract
Growing evidences have suggested the association between interleukin-27 and cryptorchidism. We aimed to investigate the relationship between IL-27 polymorphisms and cryptorchidism susceptibility. A total of 519 males were enrolled in a case-control study (150 cases and 369 normal subjects). The variants were discriminated using polymerase chain reaction-restriction fragment length polymorphism methods. The proportions of the major allele for rs153109 and rs17855750 were A and T with frequencies of 0.56 and 0.85 in cases and 0.51 and 0.91 in controls respectively (P values = 0.002, P value = 0.002). The heterozygous genotype of rs153109 and 17855750 was A/G and T/G with frequencies of 0.62 and 0.25 in cases and 0.39 and 0.17 in controls respectively (P values <0.001, P values <0.001). The A allele and A/G genotype of rs153109 polymorphisms contribute to increase cryptorchidism susceptibility, and G allele and T/G genotype of rs17855750 also contribute to increase cryptorchidism susceptibility, which implies that these allele and genotypes may be risk factors for the development of cryptorchidism.
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Affiliation(s)
- P Chen
- Department of Forensic Biology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, China
| | - Y Pu
- Department of Forensic Biology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, China
| | - B Zhou
- Laboratory of Molecular Translational Medicine, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Institute of Women and Children's Health, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Y Wang
- Laboratory of Molecular Translational Medicine, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Institute of Women and Children's Health, West China Second University Hospital, Sichuan University, Chengdu, China
| | - T Tang
- Department of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - P Zhang
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - L Zhang
- Department of Forensic Biology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, China.,Laboratory of Molecular Translational Medicine, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Institute of Women and Children's Health, West China Second University Hospital, Sichuan University, Chengdu, China
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36
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Qi XW, Wu HR, Yin Y, Xia SH, Feng JJ, Pu Y, Jin LF. Studies on expression of p14ARF and MDM2 in human thyroid neoplasms. Panminerva Med 2015; 57:43-47. [PMID: 25386766] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
AIM We sought to evaluate the expression and clinical significance of p14ARF and MDM2 proteins in thyroid neoplasm. METHODS Immunohistochemical streptavidin-peroxidase (S-P) method was used to detect the expression of p14ARF and MDM2 proteins in 78 cases of papillary thyroid carcinoma (PTC), 34 cases of papillary thyroid microcarcinoma (PTMC) and 45 cases of thyroid adenoma. RESULTS The expression of p14ARF and MDM2 protein differed significantly (P<0.01) among three group. The positivity rate of p14ARF protein in PTC was significantly lower than that in thyroid adenoma (P=0.002) and PTMC (P=0.008). While the positivity rate of MDM2 protein in PTC was significantly higher than that in thyroid adenoma (P=0.000) and PTMC (P=0.009). There was a significant correlation found between the expressions of p14ARF and MDM2 proteins in PTC (P=0.013) and PTMC (P=0.012). Also, a significant correlation was found between p14ARF protein expression and lymph node metastasis in PTC (P=0.011). CONCLUSION It was concluded that p14ARF and MDM2 proteins might be involved in the induction and development of PTC and PTMC whereas p14ARF also had diagnostic value in determining the biological behavior of PTC.
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Affiliation(s)
- X W Qi
- Department of Pathology the Wuxi No 4 Hospital, Wuxi, China -
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37
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Dong K, Pu Y, Yao N, Shu G, Liu X, He X, Zhao Q, Guan W, Ma Y. Copy number variation detection using SNP genotyping arrays in three Chinese pig breeds. Anim Genet 2015; 46:101-9. [PMID: 25590996 DOI: 10.1111/age.12247] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [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: 10/03/2014] [Indexed: 01/19/2023]
Abstract
We performed genome-wide CNV detection based on SNP genotyping data of 96 Chinese-native Tibetan, Dahe and Wuzhishan pigs. These pigs are particularly interesting because of their excellent adaptation to hypoxia or small body size, which facilitates the use of them as models of different human diseases in addition to valuable agricultural animals. A total of 105 CNV regions (CNVRs) were identified, encompassing 16.71 Mb of the pig genome. Seven of 10 (70%) CNVRs selected randomly were validated by quantitative real-time PCR. Comparison with previous studies revealed 25 (23.81%) novel CNVRs, indicating that CNV coverage of the pig genome is still incomplete and there exists large diversity between pig breeds. Functional analysis of genes located in these CNVRs confirmed the high representation of genes involved in sensory perception, neurological system processes and other basic metabolic processes. In addition, the majority of these CNVRs were detected to span reported pig QTL that affect various traits, which highlighted three biologically interesting genes with copy number changes (i.e., ANKRD34B, FAM110B and ABCG1). These genes may have economic importance in pig breeding and are worth being further investigated. We also obtained some CNVRs harboring genes that had human orthologs involved in human diseases such as cardiovascular disease and Alzheimer's disease. The findings of this study are a significant extension of the coverage of CNVRs in the pig genome and provide valuable resources for follow-up-associated studies of CNVs in pig complex traits as well as important implications of human diseases.
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Affiliation(s)
- K Dong
- Institute of Animal Science (IAS), Chinese Academy of Agricultural Science (CAAS), Beijing, 100193, China
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38
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Liu AB, Pu Y, Zheng YQ, Cai H, Ye B. Therapeutic efficacies of chitosan against Pneumocystis pneumonia of immunosuppressed rat. Parasite Immunol 2014; 36:292-302. [PMID: 24702055 DOI: 10.1111/pim.12117] [Citation(s) in RCA: 4] [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: 11/10/2013] [Accepted: 03/21/2014] [Indexed: 01/15/2023]
Abstract
This study was designed to investigate the therapeutic efficacy of chitosan on Pneumocystis pneumonia (PCP) in immunosuppressed rats. The PCP rat model was established using intramuscular injections of dexamethasone sodium phosphate. To estimate treatment effects of chitosan on rat PCP, weight gain, lung weight, lung weight/body weight (LW/BW) ratio and per cent survival were measured and the HSP70 mRNA expression of Pneumocystis carinii was detected using real-time PCR analysis. Rat lung tissues were stained with HE, and their pathological changes, inflammatory cells and alveolar macrophages were observed by light microscopy. Rat lymphocyte numbers and the concentrations of IL-10, IFN-γ and TNF-α were measured by flow cytometry and ELISA analysis. Additionally, the ultrastructure of P. carinii was examined by electron microscopy to evaluate the effects of chitosan on the protist. Our results demonstrated that chitosan has some apparent treatment effects on rat PCP by reducing HSP70 mRNA expression and lung inflammation, increasing the concentrations of IL-10 and IFN-γ as well as CD4(+) T-lymphocyte numbers, reducing the CD8(+) T-lymphocyte numbers and the concentration of TNF-α and inducing significant ultrastructural damage to P. carinii. Although its precise therapeutic mechanism has yet to be determined, these results lay a theoretical foundation for PCP chitosan therapy.
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Affiliation(s)
- A-B Liu
- Department of Pathogenic Biology, Chongqing Medical University, Chongqing, China
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39
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Lv L, Deng H, Li Y, Zhang C, Liu X, Liu Q, Zhang D, Wang L, Pu Y, Zhang H, He Y, Wang Y, Yu Y, Yu T, Zhu J. The DNA methylation-regulated miR-193a-3p dictates the multi-chemoresistance of bladder cancer via repression of SRSF2/PLAU/HIC2 expression. Cell Death Dis 2014; 5:e1402. [PMID: 25188512 PMCID: PMC4540198 DOI: 10.1038/cddis.2014.367] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Revised: 06/30/2014] [Accepted: 07/24/2014] [Indexed: 01/18/2023]
Abstract
Chemoresistance hinders the curative cancer chemotherapy. To define the role of the DNA methylation-regulated microRNA (miR) genes in the chemoresistance of bladder cancer, we performed both DNA methylomic and miRomic analyses of a multi-chemosensitive (5637) versus a multi-chemoresistant (H-bc) cell line and found that miR-193a-3p is hypermethylated/silenced in 5637 and hypomethylated/expressed in H-bc cells. A forced reversal of its level turned around the chemoresistance in the cultured cells and the tumor xenografts in nude mice. Three of its targets: SRSF2, PLAU and HIC2, work in concert to relay the miR-193a-3p's impact on the bladder cancer chemoresistance by modulating the activities of the following five signaling pathways: DNA damage, Notch, NF-κB, Myc/Max, and Oxidative Stress. In addition to the mechanistic insights in how the newly identified miR-193a-3p/SRSF2,PLAU,HIC2/five signaling pathway axis regulates the chemoresistance of bladder cancer cells, our study provides a new set of diagnostic targets for the guided personalized chemotherapy of bladder cancer.
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MESH Headings
- 3' Untranslated Regions
- Animals
- Antineoplastic Agents, Phytogenic/therapeutic use
- Antineoplastic Agents, Phytogenic/toxicity
- Base Sequence
- Cell Line, Tumor
- Cell Survival/drug effects
- DNA Damage
- DNA Methylation
- Drug Resistance, Neoplasm
- Gene Expression Regulation, Neoplastic
- Humans
- Kruppel-Like Transcription Factors/antagonists & inhibitors
- Kruppel-Like Transcription Factors/genetics
- Kruppel-Like Transcription Factors/metabolism
- Male
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- MicroRNAs/antagonists & inhibitors
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Molecular Sequence Data
- NF-kappa B/metabolism
- Nuclear Proteins/antagonists & inhibitors
- Nuclear Proteins/genetics
- Nuclear Proteins/metabolism
- Oligonucleotides, Antisense/genetics
- Oligonucleotides, Antisense/metabolism
- Oxidative Stress
- Plasminogen Activators/antagonists & inhibitors
- Plasminogen Activators/genetics
- Plasminogen Activators/metabolism
- Proto-Oncogene Proteins c-myc/metabolism
- RNA Interference
- RNA, Small Interfering/metabolism
- Receptors, Notch/metabolism
- Ribonucleoproteins/antagonists & inhibitors
- Ribonucleoproteins/genetics
- Ribonucleoproteins/metabolism
- Serine-Arginine Splicing Factors
- Signal Transduction
- Transplantation, Heterologous
- Tumor Suppressor Proteins/antagonists & inhibitors
- Tumor Suppressor Proteins/genetics
- Tumor Suppressor Proteins/metabolism
- Urinary Bladder Neoplasms/drug therapy
- Urinary Bladder Neoplasms/metabolism
- Urinary Bladder Neoplasms/pathology
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Affiliation(s)
- L Lv
- Cancer Epigenetics Program, Anhui Cancer Hospital, Hefei, Anhui 230031, China
| | - H Deng
- Cancer Epigenetics Program, Anhui Cancer Hospital, Hefei, Anhui 230031, China
| | - Y Li
- Department of Biology, School of Life Science, Anhui Medical University, Hefei, Anhui 230031, China
| | - C Zhang
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - X Liu
- Department of Bioinformatics, MHBI (Shanghai) Biotech Inc., GuiPing Road 333, Building 4/104, Shanghai Juke Biotech Park, Shanghai, China
| | - Q Liu
- School of Life Science and Technology, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
| | - D Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - L Wang
- Cancer Epigenetics Program, Anhui Cancer Hospital, Hefei, Anhui 230031, China
| | - Y Pu
- Cancer Epigenetics Program, Anhui Cancer Hospital, Hefei, Anhui 230031, China
| | - H Zhang
- Cancer Epigenetics Program, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University, Shanghai 200032, China
| | - Y He
- Cancer Epigenetics Program, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University, Shanghai 200032, China
| | - Y Wang
- Department of Pathology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Y Yu
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - T Yu
- Cancer Epigenetics Program, Anhui Cancer Hospital, Hefei, Anhui 230031, China
| | - J Zhu
- Cancer Epigenetics Program, Anhui Cancer Hospital, Hefei, Anhui 230031, China
- Cancer Epigenetics Program, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University, Shanghai 200032, China
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40
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Wang T, Yuan D, Zhou C, Lin F, Chen H, Wu H, Wei R, Xin Z, Liu J, Gao Y, Chen D, Yang S, Pu Y, Li Z. Characterization of Schizothorax prenanti cgnrhII gene: fasting affects cgnrhII expression. J Fish Biol 2014; 85:407-420. [PMID: 24942636 DOI: 10.1111/jfb.12430] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 04/23/2014] [Indexed: 06/03/2023]
Abstract
In this study, the role of chicken gonadotropin-releasing hormone II (cgnrhII) in feeding regulation was investigated in Schizothorax prenanti. First, the full-length S. prenanti cgnrhII cDNA consisted of 693 bp with an open reading frame of 261 bp encoding a protein of 86 amino acids. Next, cgnrhII was widely expressed in the central and peripheral tissues. Last, there were significant changes in cgnrhII mRNA expression in the fasted group compared to the fed group in the S. prenanti hypothalamus during 24 h fasting (P < 0.05). Furthermore, the cgnrhII gene expression presented a significant decrease in the fasted group compared with the fed group (P < 0.05) on days 3, 5 and 7, after re-feeding, there was no significant changes in cgnrhII mRNA expression level between refed and fed group on day 9 (P > 0.05). Thus, the results suggest that cGnRH II expression is influenced by fasting and the gene may be involved in feeding regulation in S. prenanti.
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Affiliation(s)
- T Wang
- Department of Aquaculture, Sichuan Agricultural University, 46# Xinkang Road, Ya'an, China
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Qi XW, Xia SH, Yin Y, Jin LF, Pu Y, Hua D, Wu HR. Expression features of CXCR5 and its ligand, CXCL13 associated with poor prognosis of advanced colorectal cancer. Eur Rev Med Pharmacol Sci 2014; 18:1916-1924. [PMID: 25010623] [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: 06/03/2023]
Abstract
OBJECTIVE CXCL13 plays a unique role in the trafficking and homing of B1 cells associated with its cognate receptor, CXCR5. The CXCR5-CXCL13 axis has been previously demonstrated to be a poor prognosis factor in malignancies. However, the clinical significance of the CXCR5-CXCL13 expression in colorectal cancer carcinoma (CRC) remains unclear. The aim of this study was to investigate the CXCR5-CXCL13 expression in CRC and determine its correlation with the progression and prognosis of the tumor. PATIENTS AND METHODS A total of 144 paraffin-embedded specimens with advanced colon cancer were assessed for CXCR5 and CXCL13 by immunohistochemistry. Patients' long-term survival was also monitored. There were significant differences in lymph node metastasis (p = 0.0066), neural invasion (p = 0.0061) and neural invasion (p = 0.0001) between high and low expression of CXCR5. RESULTS There were significant differences in distant metastasis (p = 0.0261), TNM stage (p = 0.0409), differentiation (p < 0.0001) and neural invasion of the CXCL13. Both CXCR5 and CXCL13 was associated with poor correlation with the overall survival (OS) and relapse-free survival (RFS). CONCLUSIONS Our data suggest that the CXCR5 and CXCL13 may play a crucial role in the development, metastasis and relapse of advanced colon cancer. They can be used as prognostic markers of colon cancer in clinical practice.
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Affiliation(s)
- X-W Qi
- Department of General Surgery, the Second Affiliated Hospital of Soochow University, Suzhou, China.
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42
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Wang HL, Du CH, Pu Y, Adur R, Hammel PC, Yang FY. Scaling of spin Hall angle in 3d, 4d, and 5d metals from Y3Fe5O12/metal spin pumping. Phys Rev Lett 2014; 112:197201. [PMID: 24877962 DOI: 10.1103/physrevlett.112.197201] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Indexed: 06/03/2023]
Abstract
We have investigated spin pumping from Y3Fe5O12 thin films into Cu, Ag, Ta, W, Pt, and Au with varying spin-orbit coupling strengths. From measurements of Gilbert damping enhancement and inverse spin Hall signals spanning 3 orders of magnitude, we determine the spin Hall angles and interfacial spin mixing conductances for the six metals. The spin Hall angles largely vary as Z(4) (Z: atomic number), corroborating the role of spin-orbit coupling. Amongst the four 5d metals, the variation of the spin Hall angle is dominated by the sensitivity of the d-orbital moment to the d-electron count, confirming theoretical predictions.
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Affiliation(s)
- H L Wang
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - C H Du
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - Y Pu
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - R Adur
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - P C Hammel
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - F Y Yang
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
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43
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Du CH, Wang HL, Pu Y, Meyer TL, Woodward PM, Yang FY, Hammel PC. Probing the spin pumping mechanism: exchange coupling with exponential decay in Y3Fe5O12/barrier/Pt heterostructures. Phys Rev Lett 2013; 111:247202. [PMID: 24483695 DOI: 10.1103/physrevlett.111.247202] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Indexed: 06/03/2023]
Abstract
It is widely believed that the mechanism for spin pumping in ferromagnet-nonmagnet bilayers is the exchange interaction between the ferromagnet and nonmagnetic material. We observe 1000-fold exponential decay of spin pumping from thin Y3Fe5O12 films to Pt across insulating barriers, from which exponential decay lengths of 0.16, 0.19, and 0.23 nm are extracted for oxide barriers having band gaps of 4.91, 3.40, and 2.36 eV, respectively. This archetypal signature of quantum tunneling through a barrier underscores the importance of exchange coupling for spin pumping and reveals its dependence on the characteristics of the barrier material.
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Affiliation(s)
- C H Du
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - H L Wang
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - Y Pu
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - T L Meyer
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, USA
| | - P M Woodward
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, USA
| | - F Y Yang
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
| | - P C Hammel
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
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Pu Y, Liu H, Liu B, Liao J, Liu J, Zhao Z, Tan W. Development of aptamer-based nanomaterials for biological analysis. Curr Mol Med 2013; 13:681-9. [PMID: 23116246 DOI: 10.2174/1566524011313040016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2012] [Revised: 10/03/2012] [Accepted: 10/21/2012] [Indexed: 11/22/2022]
Abstract
Aptamers selected from a large random sequence pool are oligonucleic acid or peptide molecules that bind to a specific target molecule with high affinity and sensitivity. Targets range from small molecules to proteins and peptides, even tissue or cells. As such, aptamers have captured the attention of scientists actively developing technologies for diverse biomedical applications. Particularly, when functionalized with nanomaterials, aptamers offer properties for both biomedical and bioanalytical applications. In this review, these features and properties are discussed with particular emphasis on the use of aptamer-based biosensor/detection platforms.
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Affiliation(s)
- Y Pu
- Division of Geriatrics, Xiangya Hospital, Central South University, Changsha, Hunan, China
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Masilamani V, Alsalhi MS, Devanesan S, Atif M, Rabah D, Farhat K, Pu Y, Alfano RR. A parallelism between spectral grading and Gleason grading of malignant prostate tissues. Photodiagnosis Photodyn Ther 2013; 10:168-72. [PMID: 23769283 DOI: 10.1016/j.pdpdt.2012.12.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2012] [Revised: 11/28/2012] [Accepted: 12/01/2012] [Indexed: 11/26/2022]
Abstract
Gleason score is the most common method of grading the virulence of prostate malignancy and is based on the pathological assessment of morphology of cellular matrix. Since this involves the excision of the tissue, we are working on a new, minimally invasive, non-contact, procedure of spectral diagnosis of prostate malignancy. In this preliminary in vitro study reported here, we have analyzed 27 tissue samples (normal control=7: benign=8: malignant=12) by Stokes' shift spectra (SSS) to establish a one-to-one correspondence between spectral grading and Gleason grading.
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Affiliation(s)
- V Masilamani
- Research Chair on Laser Diagnosis of Cancers, King Saud University, Riyadh, Saudi Arabia
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46
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Gao Y, Pu Y, Wang D, Hou L, Guan W, Ma Y. Isolation and biological characterization of chicken amnion epithelial cells. Eur J Histochem 2012; 56:e33. [PMID: 23027349 PMCID: PMC3493979 DOI: 10.4081/ejh.2012.e33] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Revised: 07/11/2012] [Accepted: 04/26/2012] [Indexed: 11/22/2022] Open
Abstract
Amniotic epithelial cells (AECs) express Oct4, Nanog and Sox-2, which are necessary for maintaining the undifferentiated state of pluripotent stem cells. AECs additionally express CK19, which is a specific marker of epithelial cells, both in vivo and in vitro. In this research, we investigated the biological characteristics and potential for cell therapy of AECs from 6-day-old chicken embryos. We induced the AECs to differentiate into pancreatic islet-like cells (endoderm), adipocytes and osteoblasts (mesoderm) and neural-like cells (ectoderm), and used immunofluorescence and RT-PCR to detect the expression of AECs specific markers. To assess the differentiation capacity of AECs, passage 3 cells were induced to differentiate into adipocytes, osteoblasts, pancreatic islet-like cells and neural-like cells. The AEC markers, Oct-4, Nanog, Sox-2 and CK19, were all positively expressed. Cloning efficiency decreased with increasing passage number. Passage 3 AECs were successfully induced to differentiate into pancreatic islet-like cells, osteoblasts, adipocytes, and neural-like cells. These results suggested that AECs isolated from chicken embryos exhibited the characteristics of the multipotent stem cells. AECs may therefore be ideal candidates for cellular transplantation therapy and tissue engineering.
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Affiliation(s)
- Y Gao
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
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Chuang S, Hour T, Kang W, Huang C, Huang A, Liu G, Huang S, Pu Y. 180 Molecular Role of EGFR-mediated Docetaxel Resistance in Human Androgen-Independent Prostate Cancer. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)70879-1] [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]
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48
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Pu Y, Wang WB, Xu M, Tang GC, Budansky Y, Sharanov M, Achilefu S, Eastham JA, Alfano RR. Near infrared photonic finger imager for prostate cancer screening. Technol Cancer Res Treat 2012; 10:507-17. [PMID: 22066592 DOI: 10.1177/153303461101000602] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [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] Open
Abstract
A portable rectal near infrared (NIR) scanning polarization imaging unit with an optical fiber-based rectal probe, designated as a Photonic Finger (PF), was designed, developed, built and tested. PF was used to image and locate the three dimensional (3D) positions of abnormal prostate tissue embedded inside normal prostate tissue. An inverse image reconstruction algorithm, namely Optical Tomography using Independent Component Analysis (OPTICA) was developed to unmix the signal from targets (cancerous tissue) embedded in a turbid media (normal tissue) in the backscattering imaging geometry. The Photonic Finger combined with OPTICA was ex vivo tested to characterize different target(s) inside different tissue medium, including cancerous prostate tissue embedded inside large pieces of normal tissue. This new developed instrument, Photonic Finger, may provide an alternative imaging technique, which is accurate, of high spatial resolution and non-or-less invasive for prostate cancers screening.
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Affiliation(s)
- Y Pu
- Institute for Ultrafast Spectropscopy and Lasers, Department of Physics, City College of the City University of New York, 160 Convent Avenue, New York, NY 10031, USA
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Kase Y, Yamashita H, Fuji H, Yamamoto Y, Pu Y, Tsukishima C, Murayama S. A treatment planning comparison of passive-scattering and intensity-modulated proton therapy for typical tumor sites. J Radiat Res 2011; 53:272-280. [PMID: 22129564 DOI: 10.1269/jrr.11136] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Intensity-modulated proton therapy (IMPT) is expected to improve treatment results with fewer side effects than other proton therapies. The purpose of this study was to evaluate the tumor sites for which IMPT was effective under the same beam calculation conditions by planning IMPT for typical cases treated with passive scattering proton therapy (PSPT). We selected 16 cases of nasal cavity, lung, liver or prostate cancers as typical tumor sites receiving PSPT. The dose distributions and dose volume histograms optimized by the IMPT were compared with those optimized by the PSPT. We took particular note of the doses to the skin and organs at risk (OAR) when PSPT was replaced by IMPT. Furthermore, an improvement of the beam angles was also performed to obtain better dose distributions in the IMPT. The IMPT with the same beam angles resulted in near-maximum doses to the skin of average 78%, 64%, 84% and 99% of the PSPT doses for nasal cavity, lung, liver, and prostate cancers, respectively. However, it was difficult to improve the dose homogeneity of the target volume. The change of the IMPT beam angles could reduce the doses to OARs and skin in the case of the nasal cavity, while it had limited effect in the other cases. We concluded that IMPT was effective for reducing the doses to some OARs when treating nasal cavity, lung, liver and prostate cancers. The selection of beam angles was important in the IMPT optimization, especially for nasal cavity cancers.
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Affiliation(s)
- Yuki Kase
- Proton Therapy Division, Shizuoka Cancer Center Research Institute, Nagaizumi, Shizuoka 411-8777, Japan.
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Akita F, Higashiura A, Shimizu T, Pu Y, Suzuki M, Uehara-Ichiki T, Sasaya T, Tsukihara T, Nakagawa A, Omura T. Crystal structure of the viroplasm matrix protein P9-1 of Rice black streaked dwarf virus. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311089665] [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: 11/10/2022] Open
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