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Luo R, Su Z, Kang K, Yu M, Zhou X, Wu Y, Yao Z, Xiu W, Zhang X, Yu Y, Zhou L, Na F, Li Y, Xu Y, Liu Y, Zou B, Peng F, Wang J, Zhong R, Gong Y, Huang M, Bai S, Xue J, Yan D, Lu Y. Hybrid Immuno-RT for Bulky Tumors: Standard Fractionation with Partial Tumor SBRT. Int J Radiat Oncol Biol Phys 2023; 117:S166. [PMID: 37784416 DOI: 10.1016/j.ijrobp.2023.06.264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Bulky tumors remain challenging to be treated. Stereotactic body radiation therapy (SBRT) is effective against radioresistant tumor cells and can induce immunogenic cell death (ICD) that leads to T-cell-mediated antitumor effects. Low-dose radiation (LDRT) can inflame the tumor microenvironment (TME) by recruiting T cells. We designed a novel radiotherapy technique (RT, ERT) whose dose distribution map resembles the "eclipse" by concurrently delivering LDRT to the whole tumor, meanwhile SBRT to only a part of the same tumor. This study examined the safety and efficacy of ERT to bulky lesions with PD-1 inhibitors in mice and patients. MATERIALS/METHODS In mice with CT26 colon or LLC1 lung bulky tumors (400 - 500 cm3), the whole tumor was irradiated by LDRT (2 Gy x 3), meanwhile the tumor center was irradiated by SBRT (10 Gy x 3); αPD-1 was given weekly. The dependence of therapeutic effects on CD8+ T cells was determined using depleting antibodies. Frequencies of CD8+ T cells and M1 macrophages (Mφ) were determined by flow cytometry. Multiplex Immunohistochemistry (mIHC) was applied to analyze the number and the location of CD8+ T cells and their subpopulations, as well as the phospho-eIF2α level (the ICD marker) of tumor cells in TME. Patients with advanced lung or liver bulky tumors who failed standard treatment or with oncologic emergencies were treated. Kaplan-Meier method was applied to estimate patients' progression-free survival (PFS) and overall survival (OS). RESULTS ERT/αPD-1 is superior to SBRT/αPD-1 or LDRT/αPD-1 in controlling bulky tumors in both mouse models in a CD8+ T-cell dependent manner. In the CT26 model, ERT/αPD-1 resulted in complete tumor regression in 3/11 mice and induced more CD8+ T cells and M1 Mφ in TME compared to other groups. mIHC analysis showed that ERT/αPD-1 induced higher bulk, stem-like (TCF1+ TIM3- PD-1+), and more differentiated (TCF1- TIM3+ PD-1+) CD8+ T cells infiltration into the tumor center and periphery compared to other groups. Compared to untreated or LDRT-treated tumor centers, tumor centers irradiated with ERT or SBRT showed elevated phospho-eIF2α accompanied by higher dendritic cell infiltration. In total, 39 advanced cancer patients were treated with ERT/αPD-1 or plus chemotherapy. Radiation-induced pneumonitis occurred in 1 of 26 patients receiving thoracic ERT. There were two cases of grade III toxicity associated with PD-1 inhibitors. No toxicity above grade III was observed. The objective response rate was 38.5%. The median PFS was 5.6 months and median OS was not reached at a median follow-up of 11.7 months. CONCLUSION ERT/αPD-1 showed superior efficacy in controlling bulky tumor in two mouse models. The hybrid immuno-RT (ERT) combing PD-1 inhibitors was safe and effective in patients with bulky tumors. Further clinical trials in combination with bioimaging to identify the optimal SBRT target region for the bulky tumor are warranted.
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Affiliation(s)
- R Luo
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Radiotherapy, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Z Su
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - K Kang
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Laboratory of Clinical Cell Therapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - M Yu
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - X Zhou
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Radiotherapy, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Y Wu
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Laboratory of Clinical Cell Therapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Z Yao
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Laboratory of Clinical Cell Therapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - W Xiu
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - X Zhang
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Radiotherapy, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Y Yu
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - L Zhou
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Radiotherapy, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - F Na
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Y Li
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Y Xu
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Radiotherapy, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Y Liu
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Radiotherapy, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - B Zou
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Radiotherapy, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - F Peng
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - J Wang
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Radiotherapy, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - R Zhong
- Division of Radiation Physics, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Y Gong
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Radiotherapy, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - M Huang
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - S Bai
- Division of Radiation Physics, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - J Xue
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Laboratory of Clinical Cell Therapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - D Yan
- Division of Radiation Physics, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Y Lu
- Thoracic Oncology Ward, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Radiotherapy, Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Bai S, Song D, Chen M, Lai X, Xu J, Dong F. The association between mammographic density and breast cancer molecular subtypes: a systematic review and meta-analysis. Clin Radiol 2023; 78:622-632. [PMID: 37230842 DOI: 10.1016/j.crad.2023.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/12/2023] [Accepted: 04/21/2023] [Indexed: 05/27/2023]
Abstract
AIM To conduct a systematic review and meta-analysis to evaluate the whether high mammographic density (MD) is differentially associated with all subtypes of breast cancer. MATERIALS AND METHODS The PubMed, Cochrane Library, and Embase databases were searched systematically in October 2022 to include all studies that investigated the association between MD and breast cancer subtype. Aggregate data of 17,193 breast cancer cases from 23 studies were selected, including five cohort/case-control and 18 case-only studies. The relative risk (RR) of MD were combined using random/fixed effects models for case-control studies, and for case-only studies, relative risk ratios (RRRs) were a combination of luminal A, luminal B, and HER2-positive versus triple-negative tumours. RESULTS Women in the highest density category in case-control/cohort studies had a 2.24-fold (95% confidence interval [CI] 1.53, 3.28), 1.81-fold (95% CI 1.15, 2.85), 1.44-fold (95% CI 1.14, 1.81), and 1.59-fold (95% CI 0.89, 2.85) higher risk of triple-negative, HER-2 (human epidermal growth factor receptor 2) positive, luminal A, and luminal B breast cancer compared to women in the lowest density category. RRRs for breast tumours being luminal A, luminal B, and HER-2 positive versus triple-negative in case-only studies were 1.62 (95% CI 1.14, 2.31), 1.81 (95% CI 1.22, 2.71) and 2.58 (95% CI 1.63, 4.08), respectively, for BIRADS 4 versus BIRADS 1. CONCLUSION The evidence indicates MD is a potent risk factor for the majority of breast cancer subtypes to different degrees. Increased MD is more strongly linked to HER-2-positive cancers compared to other breast cancer subtypes. The application of MD as a subtype-specific risk marker may facilitate the creation of personalised risk prediction models and screening procedures.
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Affiliation(s)
- S Bai
- Department of Ultrasound, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China
| | - D Song
- Department of Ultrasound, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China
| | - M Chen
- Department of Ultrasound, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China
| | - X Lai
- Department of Ultrasound, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China
| | - J Xu
- Department of Ultrasound, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China.
| | - F Dong
- Department of Ultrasound, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China.
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Li MD, Ni P, Yu HH, Yu ZF, Sun JX, Bai MY, Bai S, An XX, Shi YH, Liu YY. [Analysis on the status quo of the awareness rate of core knowledge of cancer prevention and treatment and its influencing factors among residents in Liaoning Province in 2021]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:22-28. [PMID: 36655253 DOI: 10.3760/cma.j.cn112150-20220309-00216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Objective: To analyze the status quo of the knowledge and related factors of cancer prevention and treatment among residents in Liaoning Province in 2021. Methods: From August to November 2021, through network sampling method, 17 474 permanent residents aged 15-69 years in Liaoning Province were surveyed. The WeChat public account was used to collect information such as demographic characteristics and core knowledge of cancer prevention and treatment. The Chi-square test was used to compare the difference of the level of the cancer prevention and treatment knowledge among different groups. The multivariate logistic regression model was used to analyze the related factors. Results: Among the 17 474 subjects, 43.1% (7 528) were male and 58.7% (10 262) were urban residents. The overall awareness rate was 72.3%, and the awareness rate of cancer cognition, prevention, early diagnosis and treatment, cancer management and rehabilitation were 71.4%, 67.6%, 72.7%, 83.4% and 63.5%, respectively. The multivariate logistic regression model showed that the residents who were man (OR: 0.850, 95%CI: 0.781-0.925), in rural areas (OR: 0.753, 95%CI: 0.694-0.817), 55-59 years old (OR: 0.851, 95%CI: 0.751-0.963), quitters (OR: 0.721, 95%CI: 0.640-0.813) and smoker (OR: 0.724, 95%CI: 0.654-0.801) had lower awareness rates, while the residents who were 35-54 years old (OR: 1.312, 95%CI: 1.202-1.432), with an educational level of junior high school/senior high school/college degree or above (OR: 1.834-5.130, 95%CI: 1.575-6.047), technical personnel (OR: 1.592, 95%CI: 1.367-1.854), civil servant/institution staff (OR: 1.282, 95%CI: 1.094-1.503), enterprise/business/service staff (OR: 1.218, 95%CI: 1.071-1.385), retired (OR: 1.324, 95%CI: 1.114-1.573) and with family history of cancer (OR: 1.369, 95%CI: 1.266-1.481) had higher awareness rates. Conclusion: The level of the awareness of core knowledge of cancer prevention and treatment among residents in Liaoning Province has met the requirements of the Healthy China Action. Region, gender, education level, age, family history of cancer and smoking are relevant factors.
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Affiliation(s)
- M D Li
- Department of Liaoning Office for Cancer Prevention and Control, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, China
| | - P Ni
- Department of Liaoning Office for Cancer Prevention and Control, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, China
| | - H H Yu
- Department of Liaoning Office for Cancer Prevention and Control, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, China
| | - Z F Yu
- Department of Liaoning Office for Cancer Prevention and Control, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, China
| | - J X Sun
- Department of Chronic Disease Prevention and Control, Dandong Cencer for Disease Control and Prevention, Dandong 118000, China
| | - M Y Bai
- Department of Chronic Disease Prevention and Control, Yingkou Cencer for Disease Control and Prevention, Yingkou 115000, China
| | - S Bai
- Department of Chronic Disease Prevention and Control, Shenyang Cencer for Disease Control and Prevention, Shenyang 110031, China
| | - X X An
- Department of Chronic Disease Prevention and Control, Benxi Cencer for Disease Control and Prevention, Benxi 117000, China
| | - Y H Shi
- Department of Chronic Disease Prevention and Control, Tieling Cencer for Disease Control and Prevention, Tieling 112099, China
| | - Y Y Liu
- Department of Liaoning Office for Cancer Prevention and Control, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, China
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Zhao Y, Wang X, Zhang M, Liu J, Pu H, Li X, Zhao H, Xu S, Yang M, Bai S, Guo L, Zhao L, Li Y, Wang Y. 104P Camrelizumab combined with chemotherapy and apatinib as first-line therapy for extensive-stage small cell lung cancer: A phase II single-arm, exploratory research. Immuno-Oncology and Technology 2022. [DOI: 10.1016/j.iotech.2022.100208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Solomon G, Suzuki S, Hathorne H, Barilla C, Wang B, Rab A, Manfredi C, Joshi D, Brewington J, Stecenko A, Driggers W, Bai S, Hunter E, Streby A, Hong J, Odem-Davis K, Davis B, Sorscher E, Linnemann R. 606 Focused clinical trials of modulator response for rare cystic fibrosis genotypes. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)01296-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Stang C, Nemastil C, Patel A, Eisner M, Bai S, Novak K. 6: Effect of triple-modulator therapy on glucose utilization in patients with cystic fibrosis. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01431-4] [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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Xiao YH, Chang SY, Bai S, Zhao RM, Wang JH, Wang XQ, Yang YK, Ma YL, Liu XQ, Luo LY, Lyu M, Chen HP. [Immunogenicity and safety of a boost dose of measles, mumps, and rubella combined vaccine for 4-6 years old children]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:1086-1091. [PMID: 34814512 DOI: 10.3760/cma.j.cn112338-20200409-00541] [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: 06/13/2023]
Abstract
Objective: To investigate the immunogenicity and safety of a boost dose of measles, mumps, and rubella combined vaccine (MMR) for children 4 to 6 years old. Methods: Children, aged 4 to 6 years old, had vaccinated with 1 dose of measles and rubella combined vaccine(MR) at the age of 8 months and 1 dose of MMR vaccine at 18-months, were recruited in Shanxi, Inner Mongolia, and Beijing, respectively. All children were assigned into 4, 5 and 6-year-old group. The children who met inclusion and exclusion criteria were vaccinated with 1 dose MMR vaccine, and were collected blood samples before vaccination and 35 to 42 d after the vaccination. During the study period, adverse events were collected at 30 min, 1 d, 2 d, 3 d, 4-12 d, and 13 to 42 days after vaccination. Serum was tested for IgG antibodies against measles, mumps and rubella. Geometric mean concentrations (GMC) of measles, mumps, and rubella antibodies were compared among groups by analysis of variance or non-parametric test. Seropositive rates and adverse event rates were compared among groups by Chi-square test or Fisher exact test. Results: A total of 500 children were included in immunogenicity analysis and 535 children were included in safety analysis. The overall adverse event rate was 20.37%, the most of severity for adverse events was mild. The rates of local and systemic adverse events were 0.37% and 20.00%, respectively. Symptoms of local adverse events were redness. The main systemic adverse events were fever, followed by cough, rash and runny nose. Received a dose of MMR vaccine for booster immunization, the seropositive rates of measles antibody, mumps antibody and rubella antibody were above 99% for all 3 age groups, and there was no significant difference between groups. There were significant differences in mumps antibody GMC among groups (P=0.042), but no significant differences in measles and rubella antibodies GMC. Conclusion: The immunogenicity and safety of a boosted MMR vaccintion in children aged 4, 5 and 6 years were all similar good.
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Affiliation(s)
- Y H Xiao
- China National Biotec Group Company Limited, Beijing 100024, China
| | - S Y Chang
- Shanxi Provincial Center for Disease Control and Prevention, Taiyuan 030012, China
| | - S Bai
- Beijing Center for Disease Control and Prevention, Beijing 100013, China
| | - R M Zhao
- Ulan Qab Municipal Health Commission, Ulan Qab 012000, China
| | - J H Wang
- Yanhu Center for Disease Control and Prevention, Yuncheng 044000, China
| | - X Q Wang
- Horinger Center for Disease Control and Prevention, Horinger 011599, China
| | - Y K Yang
- Beijing Institute of Biological Products Company Limited, Beijing 100176, China
| | - Y L Ma
- China National Biotec Group Company Limited, Beijing 100024, China
| | - X Q Liu
- China National Biotec Group Company Limited, Beijing 100024, China
| | - L Y Luo
- China National Biotec Group Company Limited, Beijing 100024, China
| | - M Lyu
- Beijing Center for Disease Control and Prevention, Beijing 100013, China
| | - H P Chen
- China National Biotec Group Company Limited, Beijing 100024, China
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Yu Y, Soh HY, Bai S, Zhang WB, Wang Y, Peng X. Three-dimensional morphological analysis of neocondyle bone growth after fibula free flap reconstruction. Int J Oral Maxillofac Surg 2021; 50:1429-1434. [PMID: 33752937 DOI: 10.1016/j.ijom.2021.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 01/26/2021] [Accepted: 03/05/2021] [Indexed: 11/18/2022]
Abstract
The aim of this retrospective study was to verify the three-dimensional morphological change in neocondyle bone growth after fibula free flap (FFF) reconstruction. The independent variables were age, sex, and diagnosis. Outcome variables included the direction and volume of neocondyle bone growth, and the time to a stable neocondyle following bone growth. The outcome variables were measured on postoperative computed tomography scans using iPlan 3.0. Of the 35 patients included, 25 showed neocondyle bone growth. The direction of neocondyle bone growth included the direction of lateral pterygoid traction (DLPT) and the direction towards the glenoid fossa (DGF). The bone growth of the neocondyle showed three patterns: only DLPT (eight patients), only DGF (two patients), and a combination of DLPT and DGF (15 patients). The average volume of bone growth in the 25 patients was 0.479 ± 0.380 cm3. The average volume of neocondyle bone growth was significantly greater in patients aged <18 years (0.746 ± 0.346 cm3) than in patients aged >18 years (0.219 ± 0.191 cm3) (P < 0.001). The time to a stable neocondyle following bone growth was 5.6 months postoperatively. In conclusion, neocondyle bone growth after FFF reconstruction occurred in two different directions, DLPT and DGF. Osteogenesis of the lateral pterygoid muscle affects neocondyle growth with DLPT. Neocondyle bone growth is more marked in paediatric patients than in adults.
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Affiliation(s)
- Y Yu
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - H Y Soh
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - S Bai
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - W-B Zhang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - Y Wang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - X Peng
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China.
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Liang H, Geng J, Bai S, Aimuguri A, Gong Z, Feng R, Shen X, Wei S. TaqMan real-time PCR for detecting bovine viral diarrhea virus. Pol J Vet Sci 2019; 22:405-413. [PMID: 31269348 DOI: 10.24425/pjvs.2019.129300] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The present study was aimed to establish a novel TaqMan real-time PCR (RTm-PCR) for detecting and typing bovine viral diarrhea virus (BVDV), and also to develop a diagnostic protocol which simplifies sample collection and processing. Universal primers and TaqMan-MGB probes were designed from the known sequences of conserved 5' - and 3'-untranslated regions (5'UTR, 3'UTR) of the NADL strain of BVDV. Prior to optimizing the assay, cDNAs were transcribed in vitro to make standard curves. The sensitivity, specificity and stability (reproducibility) were evaluated. The RTm-PCR was tested on the 312 feces specimens collected from persistently infected (PI) calves. The results showed the optimum conditions for RTm-PCR were 17.0 μmol/L primer, 7.5 μmol/L probe and 51.4°C annealing temperature. The established TaqMan RTm-PCR assay could specially detect BVDV without detecting any other viruses. Its detection limit was 1.55×100 copies/μL for viral RNA. It was 10000-fold higher than conventional PCR with excellent specificity and reproducibility. 312 samples were tested using this method and universal PCR from six dairy farms, respectively. Positive detections were found in 49 and 44 feces samples, respectively. The occurrence rate was 89.80%. In conclusion, the established TaqMan RTm-PCR could rapidly detect BVDV and effectively identify PI cattle. The detection limit of RTm-PCR was 1.55 copies/μL. It will be beneficial for enhancing diagnosis and therapy efficacy and reduce losses in cattle farms.
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Affiliation(s)
- H Liang
- Life Science and Engineering College, Northwest Minzu University, Lanzhou 730030, China
| | - J Geng
- Medicine College, Northwest Minzu University, Lanzhou, 730030, China
| | - S Bai
- Life Science and Engineering College, Northwest Minzu University, Lanzhou 730030, China
| | - A Aimuguri
- Life Science and Engineering College, Northwest Minzu University, Lanzhou 730030, China
| | - Z Gong
- Animal Cell Engineering Center of Gansu Province, Lanzhou 730030, China
| | - R Feng
- Animal Cell Engineering Center of Gansu Province, Lanzhou 730030, China
| | - X Shen
- School of Karst Science, Guizhou Normal University, Guiyang, 550001, China
| | - S Wei
- Life Science and Engineering College, Northwest Minzu University, Lanzhou 730030, China.,Medicine College, Northwest Minzu University, Lanzhou, 730030, China
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Martin D, Lin F, Bai S, Moffa A, Taylor R, Nikolin S, Bull M, Dokos S, Loo CK. A systematic review and computational modelling analysis of unilateral montages in electroconvulsive therapy. Acta Psychiatr Scand 2019; 140:408-425. [PMID: 31419305 DOI: 10.1111/acps.13089] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/12/2019] [Indexed: 12/25/2022]
Abstract
OBJECTIVE To examine the clinical outcomes of ECT unilateral placements compared in prior studies and apply insights from computational modelling to understand differences between placements. METHODS PubMed, Embase, Scopus and PsycINFO and reference lists were systematically searched for studies of depressed patients where two unilateral placements were compared and clinical outcomes were reported. Computational modelling was done to generate electric field maps for each unilateral placement identified in the systematic review. RESULTS A total of 29 studies met criteria for inclusion. Eight studies reported efficacy outcomes and 23 studies reported cognitive outcomes. Most studies found no significant difference in efficacy between right unilateral (RUL) and left unilateral (LUL) ECT, and no difference was found between temporo-parietal and fronto-temporal ECT. For the majority of studies, RUL placements had better verbal anterograde memory outcomes compared with the LUL placements. There was some evidence suggestive of cognitive advantages for fronto-frontal and fronto-parietal placements relative to temporo-parietal ECT. CONCLUSIONS For efficacy, studies mainly focused on the comparison of right vs. left hemispheric stimulation, with the available evidence suggesting no substantive difference. RUL placements tended to have better verbal anterograde memory outcomes relative to LUL placements, though limited differences were found between the RUL placements.
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Affiliation(s)
- D Martin
- Black Dog Institute, Sydney, NSW, Australia.,School of Psychiatry, University of New South Wales, Sydney, NSW, Australia
| | - F Lin
- Black Dog Institute, Sydney, NSW, Australia.,School of Psychiatry, University of New South Wales, Sydney, NSW, Australia
| | - S Bai
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW, Australia.,Department of Electrical and Computer Engineering, Technical University of Munich (TUM), Munich, Germany.,Munich School of BioEngineering, TUM, Garching, Germany
| | - A Moffa
- School of Psychiatry, University of New South Wales, Sydney, NSW, Australia
| | - R Taylor
- School of Psychiatry, University of New South Wales, Sydney, NSW, Australia.,Concord Centre for Mental Health, Concord, NSW, Australia
| | - S Nikolin
- Black Dog Institute, Sydney, NSW, Australia.,School of Psychiatry, University of New South Wales, Sydney, NSW, Australia
| | - M Bull
- Black Dog Institute, Sydney, NSW, Australia.,HNE Mental Health, Waratah, NSW, Australia
| | - S Dokos
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW, Australia
| | - C K Loo
- Black Dog Institute, Sydney, NSW, Australia.,St George Hospital, South Eastern Sydney Health, Sydney, NSW, Australia
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11
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Wei J, Bai S, Wu W, Yang X, Lei D. Reconstruction of complex jaw defects with chimeric free flap in the era of digital surgery. Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.463] [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: 10/26/2022]
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12
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Seth TK, Bai S, Hu M, Sei E, Wood A, Wiley J, Chen H, Contreras A, Teshome M, Lim B, Navin NE. Abstract GS1-02: Towards a human breast cell atlas. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-gs1-02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
The human breast tissue consists of lobules connected to a complex network of ducts that are evolutionarily designed to produce and transport milk to nourish offspring. Histopathology has identified 10 major cell types based on morphological features but have provided limited information on cell states - the transcriptional programs of cell types that reflect different biological functions. In this study, we have generated an unbiased 'cell atlas' of the normal human breast to define the cell types and cell states using single cell RNA sequencing methods. We performed 3' microdroplet based single cell RNA sequencing of 31,442 stromal cells from 11 women with pathologically normal breast tissues that were collected from mastectomies. Unbiased expression analysis identified three major cell types: epithelial cells (luminal and basal), fibroblasts and endothelial cells, in addition to several minor cell types: macrophages, T-cells, natural killer cells, pericytes and smooth muscle cells. Analysis of cell states of these cell types revealed different transcriptional programs in luminal epithelial cells (hormone receptor positive and secretory), basal epithelial cells (myoepithelial or basement-like), endothelial cells (lymphatic or vascular), macrophages (M1 or M2) and fibroblasts (three subgroups) and provided insight into progenitors of each cell types. These data provide a valuable reference for the research community and will provide new insights into how normal cell types are transformed in the tumor microenvironment to promote or inhibit the progression of breast cancer.
Citation Format: Seth TK, Bai S, Hu M, Sei E, Wood A, Wiley J, Chen H, Contreras A, Teshome M, Lim B, Navin NE. Towards a human breast cell atlas [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr GS1-02.
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Affiliation(s)
- TK Seth
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - S Bai
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - M Hu
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - E Sei
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - A Wood
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - J Wiley
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - H Chen
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - A Contreras
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - M Teshome
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - B Lim
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - NE Navin
- The University of Texas MD Anderson Cancer Center, Houston, TX
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13
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Gao J, Bai S, Wang Y, Zhao S, He Z, Wang R. MiR-374b targets GATA3 to promote progression and development of glioblastoma via regulating SEMA3B. Neoplasma 2019; 66:543-554. [DOI: 10.4149/neo_2018_180830n659] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 01/08/2019] [Indexed: 11/08/2022]
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14
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Yang L, Han G, Song Q, Ruan C, Li L, Shen J, LI G, Zhong R, Bai S. A Comparison of Patient Position Displacements from Catalyst™ System and Cone Beam CT Registrations for Treatment. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1533] [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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15
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Wang J, Yuan Z, Zhang K, Ding X, Bai S, Zeng Q, Peng H, Celi P. Epigallocatechin-3-gallate protected vanadium-induced eggshell depigmentation via P38MAPK-Nrf2/HO-1 signaling pathway in laying hens. Poult Sci 2018; 97:3109-3118. [PMID: 29788294 DOI: 10.3382/ps/pey165] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 05/14/2018] [Indexed: 12/21/2022] Open
Abstract
It has been demonstrated that tea polyphenol (TP) epigallocatechin-3-gallate (EGCG) can confer protection against vanadium (V) toxicity in laying hens; however, our understanding of the molecular mechanisms beyond this effect are still limited. In this study, 360 hens were randomly assigned to the 3 groups to study whether the potential mechanism P38MAPK-Nrf2/HO-1 signaling pathway is involved in the protective effect of EGCG on eggshell pigmentation in vanadium challenged laying hens. Treatments included a control group, a 10 mg/kg V (V10), and a V10 plus 130 mg/kg of EGCG group (V10+EGCG130). Both eggshell color and protoporphyrin IX were decreased in the V10 group compared with the control diet, while EGCG130 treatment partially improved shell color and protoporphyrin IX (P < 0.05). The V10 exposure induced higher cell apoptosis rate and oxidative stress in birds as evidenced by the histological apoptosis status, decreased uterine glutathione-S transferase (GST) and high abundance of malondialdehyde (MDA) compared with the control group, whereas EGCG130 markedly alleviated oxidative stress via reducing MDA generation (P < 0.05). Dietary vanadium reduced ferrochelatase, NF-E2-related factor 2 (Nrf2), and heme oxygenase (HO-1) mRNA expression, while EGCG up-regulated Nrf2 and HO-1 expression (P < 0.05). Protein levels of Nrf2, HO-1 and phospho-p38 (P-P38) MAPK were reduced in V10 group, while dietary supplementation with 130 mg/kg EGCG markedly increased Nrf2, HO-1 and P-P38 MAPK protein levels in the uterus compared with the V10 group (P < 0.01). In conclusion, EGCG improved eggshell color and antioxidant system in V10-challenged hens, which seems to be associated with P38MAPK-Nrf2/HO-1 signaling pathway.
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Affiliation(s)
- J Wang
- Animal Nutrition Institute, Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, People's Republic of China
| | - Z Yuan
- Animal Nutrition Institute, Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, People's Republic of China
| | - K Zhang
- Animal Nutrition Institute, Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, People's Republic of China
| | - X Ding
- Animal Nutrition Institute, Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, People's Republic of China
| | - S Bai
- Animal Nutrition Institute, Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, People's Republic of China
| | - Q Zeng
- Animal Nutrition Institute, Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, People's Republic of China
| | - H Peng
- Animal Nutrition Institute, Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, People's Republic of China
| | - P Celi
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Australia
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Liu D, Skomorovska Y, Song J, Bowler E, Harris R, Ravasz M, Bai S, Ayati M, Tamai K, Koyuturk M, Yuan X, Wang Z, Wang Y, Ewing R. ELF3 is an antagonist of oncogenic-signalling-induced expression of EMT-TF ZEB1. Cancer Biol Ther 2018; 20:90-100. [PMID: 30148686 PMCID: PMC6292503 DOI: 10.1080/15384047.2018.1507256] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 06/22/2018] [Accepted: 07/29/2018] [Indexed: 12/23/2022] Open
Abstract
Background: Epithelial-to-mesenchymal transition (EMT) is a key step in the transformation of epithelial cells into migratory and invasive tumour cells. Intricate positive and negative regulatory processes regulate EMT. Many oncogenic signalling pathways can induce EMT, but the specific mechanisms of how this occurs, and how this process is controlled are not fully understood. Methods: RNA-Seq analysis, computational analysis of protein networks and large-scale cancer genomics datasets were used to identify ELF3 as a negative regulator of the expression of EMT markers. Western blotting coupled to siRNA as well as analysis of tumour/normal colorectal cancer panels was used to investigate the expression and function of ELF3. Results: RNA-Seq analysis of colorectal cancer cells expressing mutant and wild-type β-catenin and analysis of colorectal cancer cells expressing inducible mutant RAS showed that ELF3 expression is reduced in response to oncogenic signalling and antagonizes Wnt and RAS oncogenic signalling pathways. Analysis of gene-expression patterns across The Cancer Genome Atlas (TCGA) and protein localization in colorectal cancer tumour panels showed that ELF3 expression is anti-correlated with β-catenin and markers of EMT and correlates with better clinical prognosis. Conclusions: ELF3 is a negative regulator of the EMT transcription factor (EMT-TF) ZEB1 through its function as an antagonist of oncogenic signalling.
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Affiliation(s)
- D Liu
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Y Skomorovska
- School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - J Song
- School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - E Bowler
- School of Biological Sciences, Faculty of Natural and Environmental Sciences, University of Southampton, Southampton, UK
| | - R Harris
- School of Biological Sciences, Faculty of Natural and Environmental Sciences, University of Southampton, Southampton, UK
| | - M Ravasz
- School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - S Bai
- School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - M Ayati
- Electrical Engineering and Computer Science, Case Western Reserve University, Cleveland, Ohio, USA
| | - K Tamai
- School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - M Koyuturk
- Electrical Engineering and Computer Science, Case Western Reserve University, Cleveland, Ohio, USA
| | - X Yuan
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Z Wang
- School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - Y Wang
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Biological Sciences, Faculty of Natural and Environmental Sciences, University of Southampton, Southampton, UK
| | - R.M. Ewing
- School of Biological Sciences, Faculty of Natural and Environmental Sciences, University of Southampton, Southampton, UK
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17
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Kong M, Bai S. 594 Female sexual function in obese women and associated factors. J Sex Med 2018. [DOI: 10.1016/j.jsxm.2018.04.500] [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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18
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Bai S, Hua L, Wang X, Liu Q, Bao Y. Association of a 4-Locus Gene Model Including IL13, IL4, FCER1B, and ADRB2 With the Asthma Predictive Index and Atopy in Chinese Han Children. J Investig Allergol Clin Immunol 2018; 28:407-134. [PMID: 29761786 DOI: 10.18176/jiaci.0272] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Asthma is a complex and heterogeneous disease. We found gene-gene interactions between IL13 rs20541, IL4 rs2243250, ADRB2 rs1042713, and FCER1B rs569108 in asthmatic Chinese Han children. This 4-locus set constituted an optimal statistical interaction model. We examined associations between the 4-gene model (IL13, IL4, FCER1B, and ADRB2) and the Asthma Predictive Index (API) and atopy in Chinese Han children. METHODS Four single-nucleotide polymorphisms in the 4 genes were genotyped in 385 preschool children with wheezing symptoms using matrix-assisted laser desorption ionization time-of-flight mass spectrometry. The t test and x2 tests were used for the analysis. RESULTS Significant correlations were found between the 4-locus gene model and a stringent and loose API (both P<.0001). Additionally, a high-risk asthma genotype was a risk factor for a positive API (stringent API, OR=4.08; loose API, OR=2.36). We also found a statistically significant association between the 4-locus gene model and atopy (P<.01, OR=2.09). CONCLUSIONS Our results indicated that the 4-locus gene model consisting of L13 rs20541, IL4 rs2243250, ADRB2 rs1042713, and FCER1B rs569108 was associated with the API and atopy. These findings provide evidence that this gene model can be used to determine a high risk of developing asthma and atopy in Chinese Han children.
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Affiliation(s)
- S Bai
- Department of Pediatric Pulmonology, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - L Hua
- Department of Pediatric Pulmonology, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - X Wang
- Department of Pediatrics, Shanghai EverBetter Pubin Children's Hospital, Shanghai, China
| | - Q Liu
- Department of Pediatric Pulmonology, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Y Bao
- Department of Pediatric Pulmonology, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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19
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Qin S, Han H, Zhang K, Ding X, Bai S, Wang J, Zeng Q. Dietary fibre alleviates hepatic fat deposition via inhibiting lipogenic gene expression in meat ducks. J Anim Physiol Anim Nutr (Berl) 2017; 102:e736-e745. [DOI: 10.1111/jpn.12828] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 09/01/2017] [Indexed: 02/03/2023]
Affiliation(s)
- S. Qin
- Institute of Animal Nutrition; Key Laboratory for Animal Disease-Resistance Nutrition of China, Ministry of Education; Sichuan Agricultural University; Chengdu China
| | - H. Han
- Institute of Animal Nutrition; Key Laboratory for Animal Disease-Resistance Nutrition of China, Ministry of Education; Sichuan Agricultural University; Chengdu China
| | - K. Zhang
- Institute of Animal Nutrition; Key Laboratory for Animal Disease-Resistance Nutrition of China, Ministry of Education; Sichuan Agricultural University; Chengdu China
| | - X. Ding
- Institute of Animal Nutrition; Key Laboratory for Animal Disease-Resistance Nutrition of China, Ministry of Education; Sichuan Agricultural University; Chengdu China
| | - S. Bai
- Institute of Animal Nutrition; Key Laboratory for Animal Disease-Resistance Nutrition of China, Ministry of Education; Sichuan Agricultural University; Chengdu China
| | - J. Wang
- Institute of Animal Nutrition; Key Laboratory for Animal Disease-Resistance Nutrition of China, Ministry of Education; Sichuan Agricultural University; Chengdu China
| | - Q. Zeng
- Institute of Animal Nutrition; Key Laboratory for Animal Disease-Resistance Nutrition of China, Ministry of Education; Sichuan Agricultural University; Chengdu China
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21
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Kim H, Lee K, Bai S, Kim M, Oh E, Yoo Y. Influence of head and neck position on ventilation using the air-Q ® SP airway in anaesthetized paralysed patients: a prospective randomized crossover study. Br J Anaesth 2017; 118:452-457. [DOI: 10.1093/bja/aew448] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/13/2016] [Indexed: 11/14/2022] Open
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22
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Loo C, Martin D, Ho KA, Alonzo A, Bai S, Dokos S. Prefrontal anodal tDCS as a Neuropsychiatric treatment –factors beyond prefrontal stimulation. Brain Stimul 2017. [DOI: 10.1016/j.brs.2017.01.179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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23
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Bai S, Gálvez V, Dokos S, Martin D, Bikson M, Loo C. Computational models of Bitemporal, Bifrontal and Right Unilateral ECT predict differential stimulation of brain regions associated with efficacy and cognitive side effects. Eur Psychiatry 2017; 41:21-29. [PMID: 28049077 DOI: 10.1016/j.eurpsy.2016.09.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 09/21/2016] [Accepted: 09/24/2016] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Extensive clinical research has shown that the efficacy and cognitive outcomes of electroconvulsive therapy (ECT) are determined, in part, by the type of electrode placement used. Bitemporal ECT (BT, stimulating electrodes placed bilaterally in the frontotemporal region) is the form of ECT with relatively potent clinical and cognitive side effects. However, the reasons for this are poorly understood. OBJECTIVE This study used computational modelling to examine regional differences in brain excitation between BT, Bifrontal (BF) and Right Unilateral (RUL) ECT, currently the most clinically-used ECT placements. Specifically, by comparing similarities and differences in current distribution patterns between BT ECT and the other two placements, the study aimed to create an explanatory model of critical brain sites that mediate antidepressant efficacy and sites associated with cognitive, particularly memory, adverse effects. METHODS High resolution finite element human head models were generated from MRI scans of three subjects. The models were used to compare differences in activation between the three ECT placements, using subtraction maps. RESULTS AND CONCLUSION In this exploratory study on three realistic head models, Bitemporal ECT resulted in greater direct stimulation of deep midline structures and also left temporal and inferior frontal regions. Interpreted in light of existing knowledge on depressive pathophysiology and cognitive neuroanatomy, it is suggested that the former sites are related to efficacy and the latter to cognitive deficits. We hereby propose an approach using binarised subtraction models that can be used to optimise, and even individualise, ECT therapies.
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Affiliation(s)
- S Bai
- Department of Electrical and Computer Engineering, Technische Universität München, 80333 München, Germany; Graduate School of Biomedical Engineering, Faculty of Engineering, University of New South Wales (UNSW), NSW 2052, Australia
| | - V Gálvez
- School of Psychiatry, UNSW, NSW 2052, Australia; Black Dog Institute, NSW 2031, Australia
| | - S Dokos
- Graduate School of Biomedical Engineering, Faculty of Engineering, University of New South Wales (UNSW), NSW 2052, Australia
| | - D Martin
- School of Psychiatry, UNSW, NSW 2052, Australia; Black Dog Institute, NSW 2031, Australia
| | - M Bikson
- Department of Biomedical Engineering, The City College of The City University of New York, New York, USA
| | - C Loo
- School of Psychiatry, UNSW, NSW 2052, Australia; Black Dog Institute, NSW 2031, Australia; Department of Psychiatry, St George Hospital, NSW 2217, Australia.
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Qin S, Tian G, Zhang K, Ding X, Bai S, Wang J, Jia G, Zeng Q. Influence of dietary rapeseed meal levels on growth performance, organ health and standardized ileal amino acid digestibility in meat ducks from 15 to 35 days of age. J Anim Physiol Anim Nutr (Berl) 2017; 101:1297-1306. [PMID: 28133825 DOI: 10.1111/jpn.12649] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [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: 05/10/2016] [Accepted: 11/03/2016] [Indexed: 11/27/2022]
Abstract
This study was conducted to investigate the effects of dietary rapeseed meal (RSM) inclusion levels on growth performance, organ health and standardized ileal amino acid digestibility (SIAAD) in meat ducks from 15 to 35 days of age. Six hundred and eighty 15-days-old ducks were randomly allotted to five treatments based on body weight. Five isonitrogenous and isoenergetic diets were formulated on a digestible amino acid basis by replacing 0% (the control), 25%, 50%, 75% and 100% (based on fresh) of protein from soya bean meal (SBM) with protein from RSM. The corresponding levels of RSM in experimental diets were 0%, 6.66%, 13.32%, 19.98% and 26.64% respectively. With increasing dietary RSM levels, body weight (BW) and average daily gain (ADG) linearly decreased (p < 0.001), whereas feed-to-gain ratio (F: G) linearly increased (p = 0.0078). Ducks fed the diets with 13.32% or more RSM had significantly lower (p < 0.05) BW, ADG and ADFI, or higher F: G than ducks fed the control diet. The maximum limit of dietary RSM supplementation was estimated to range from 4.27% to maximize ADG for 15 to 35 days to 11.69% to maintain feed intake for 15 to 35 days on the basis of a broken-line model. At day35, the 4th primary wing feather length and SIAAD (except for Met, Thr and Val) linearly decreased (p < 0.001), and the thyroid glands weight (% of BW) linearly increased (p < 0.05) with increasing dietary RSM levels. Ducks fed the RSM inclusion diets had significantly lower (p < 0.0001) serum aspartate aminotransferase (AST) and alanine transaminase (ALT) activities than ducks fed the control diet. These results suggested that the maximum limit of dietary RSM containing 7.57 μmol/g glucosinolates was estimated to be 4.27% to avoid growth reduction.
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Affiliation(s)
- S Qin
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of China, Ministry of Education, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - G Tian
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of China, Ministry of Education, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - K Zhang
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of China, Ministry of Education, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - X Ding
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of China, Ministry of Education, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - S Bai
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of China, Ministry of Education, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - J Wang
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of China, Ministry of Education, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - G Jia
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of China, Ministry of Education, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Q Zeng
- Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of China, Ministry of Education, Sichuan Agricultural University, Chengdu, Sichuan, China
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26
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Alkan F, Small T, Bai S, Dominowski A, Dybowski C. Ion pairing in H2O and D2O solutions of lead nitrate, as determined with 207Pb NMR spectroscopy. J STRUCT CHEM+ 2016. [DOI: 10.1134/s0022476616020189] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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27
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German P, Bai S, Liu XD, Sun M, Zhou L, Kalra S, Zhang X, Minelli R, Scott KL, Mills GB, Jonasch E, Ding Z. Phosphorylation-dependent cleavage regulates von Hippel Lindau proteostasis and function. Oncogene 2016; 35:4973-80. [PMID: 26973240 DOI: 10.1038/onc.2016.40] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 12/03/2015] [Accepted: 01/12/2016] [Indexed: 01/04/2023]
Abstract
Loss of von Hippel Lindau (VHL) protein function is a key driver of VHL diseases, including sporadic and inherited clear cell renal cell carcinoma. Modulation of the proteostasis of VHL, especially missense point-mutated VHL, is a promising approach to augmenting VHL levels and function. VHL proteostasis is regulated by multiple mechanisms including folding, chaperone binding, complex formation and phosphorylation. Nevertheless, many details underlying the regulations of VHL proteostasis are unknown. VHL is expressed as two variants, VHL30 and VHL19. Furthermore, the long-form variant of VHL was often detected as multiple bands by western blotting. However, how these multiple species of VHL are generated and whether the process regulates VHL proteostasis and function are unknown. We hypothesized that the two major species are generated by VHL protein cleavage, and the cleavage regulates VHL proteostasis and subsequent function. We characterized VHL species using genetical and pharmacological approaches and showed that VHL was first cleaved at the N-terminus by chymotrypsin C before being directed for proteasomal degradation. Casein kinase 2-mediated phosphorylation at VHL N-terminus was required for the cleavage. Furthermore, inhibition of cleavage stabilized VHL protein and thereby promoted HIF downregulation. Our study reveals a novel mechanism regulating VHL proteostasis and function, which is significant for identifying new drug targets and developing new therapeutic approaches targeting VHL deficiency in VHL diseases.
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Affiliation(s)
- P German
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - S Bai
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - X-D Liu
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - M Sun
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - L Zhou
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - S Kalra
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - X Zhang
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - R Minelli
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - K L Scott
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - G B Mills
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - E Jonasch
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Z Ding
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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Zhang H, Gilbert ER, Zhang K, Ding X, Luo Y, Wang J, Zeng Q, Bai S. Uptake of manganese from manganese-lysine complex in the primary rat intestinal epithelial cells. J Anim Physiol Anim Nutr (Berl) 2015; 101:147-158. [DOI: 10.1111/jpn.12430] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 09/30/2015] [Indexed: 11/30/2022]
Affiliation(s)
- H. Zhang
- Animal Nutrition Institute; Sichuan Agricultural University Ya'an; Sichuan China
| | - E. R. Gilbert
- Department of Animal and Poultry Sciences; Virginia Tech University; Blacksburg VA USA
| | - K. Zhang
- Animal Nutrition Institute; Sichuan Agricultural University Ya'an; Sichuan China
| | - X. Ding
- Animal Nutrition Institute; Sichuan Agricultural University Ya'an; Sichuan China
| | - Y. Luo
- Animal Nutrition Institute; Sichuan Agricultural University Ya'an; Sichuan China
| | - J. Wang
- Animal Nutrition Institute; Sichuan Agricultural University Ya'an; Sichuan China
| | - Q. Zeng
- Animal Nutrition Institute; Sichuan Agricultural University Ya'an; Sichuan China
| | - S. Bai
- Animal Nutrition Institute; Sichuan Agricultural University Ya'an; Sichuan China
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29
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Zhou L, Bai S, Zhang Y, Ming X, Zhang Y, Deng J. Imaging Dose and Cancer Risk in Image Guided Radiation Therapy of Cancers. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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Zhao Y, Wang S, Xu Y, Wang J, Sun C, Zhu J, Ding Z, Wang Y, Huang M, Peng F, Bai S, Ren L, Lu Y, Gong Y. Dose Volume Histogram Parameters for Radiation Pneumonitis in Postoperation Radiation Therapy Among Lung Cancer Patients. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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31
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Zhang X, Bai S, Li H, Hu H, Duan X, Chen M, Wang D, Chen Y, Zhang F, Shen J. CT and MRI findings of radiation-induced external auditory canal carcinoma in patients with nasopharyngeal carcinoma after radiotherapy. Br J Radiol 2015; 88:20140791. [PMID: 25827205 PMCID: PMC4628451 DOI: 10.1259/bjr.20140791] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 03/19/2015] [Accepted: 03/31/2015] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE To summarize the radiological and clinical features of radiation-induced external auditory canal carcinomas (RIEACCs) in patients with nasopharyngeal carcinomas (NPCs) after radiation therapy. METHODS CT, MRI and clinical features in 16 patients with histologically proven RIEACCs were retrospectively reviewed. There were 2 females and 14 males, with a median age of 52.5 years at the time of diagnosis of RIEACC. Imaging parameters including lesion extent, size, margin, shape, bone destruction, adjacent structure invasion, density/signal intensity, and pattern and degree of enhancement were assessed. Clinical features including clinical staging, histological type, treatment and radiation dose (RD) of primary NPC as well as the histological type, staging of radiation-induced tumour and the latent period between NPC and RIT were recorded. RESULTS All patients had a single RIEACC. The lesions had a size of 3.5 ± 1.4 cm and were localized (n = 7) or extensive (n = 9). Most of the lesions were partially or ill defined with an irregular shape and had an intermediate density/signal pattern and moderate homogeneous enhancement. The latent period of RIEACCs ranged from 10 to 20 years in nine patients with a RD of 68-70 Gy; from 2 to 10 years in five patients with a RD of 68-74 Gy; and more than 20 years in two patients with a RD of 70 or 72 Gy. CONCLUSION An external auditory canal (EAC) mass with homogeneous, intermediate CT density or signal intensity in patients with NPC after radiotherapy is highly suggestive of RIEACC, which should be included in the routine surveillance for patients with NPC after radiotherapy. ADVANCES IN KNOWLEDGE RIEACCs could occur as short as 2 years after radiotherapy in patients with NPC and have distinct features from otitis media and sarcomas. This EAC malignancy should be included in routine surveillance for patients with NPC after radiotherapy.
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Affiliation(s)
- X Zhang
- Department of Radiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - S Bai
- Department of Radiotherapy, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - H Li
- Department of Radiology, Cancer Center, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - H Hu
- Department of Radiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - X Duan
- Department of Radiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - M Chen
- Department of Radiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - D Wang
- Department of Radiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Y Chen
- Department of Radiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - F Zhang
- Department of Radiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - J Shen
- Department of Radiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
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32
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Cui H, Bai S, Huo Z, Li J, Sun J, An X. A cluster of rotavirus enteritis in pediatric liver recipients. Transpl Infect Dis 2015; 17:477-80. [DOI: 10.1111/tid.12378] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2014] [Revised: 11/15/2014] [Accepted: 02/28/2015] [Indexed: 12/29/2022]
Affiliation(s)
- H. Cui
- The Center for Disease Control and Prevention of Xicheng District; Beijing China
| | - S. Bai
- The Center for Disease Control and Prevention of Xicheng District; Beijing China
| | - Z. Huo
- The Center for Disease Control and Prevention of Xicheng District; Beijing China
| | - J. Li
- The Center for Disease Control and Prevention of Xicheng District; Beijing China
| | - J. Sun
- The Center for Disease Control and Prevention of Xicheng District; Beijing China
| | - X. An
- The Center for Disease Control and Prevention of Xicheng District; Beijing China
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33
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Loo C, Bai S, Lovell N, Dokos S. Comparison of novel transcranial electrical stimulation montages using a computational modelling approach. Brain Stimul 2015. [DOI: 10.1016/j.brs.2015.01.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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34
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Wang G, Wang P, Huang J, Tan H, Liu W, Zhang J, Liao Z, Yu L, Mao Y, Ye S, Feng L, Zhang Y, Wang Y, Li W, Luan X, Wang S, Bai S. ASSA14-10-01 Haemodynamic effects of short-term infusion of recombinant human atrial natriuretic peptide (rhANP) for acute decompensated heart failure: a randomised, double-blind, placebo-controlled, multicenter study. Heart 2015. [DOI: 10.1136/heartjnl-2014-307109.82] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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35
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Liu X, Hoang A, Zhou L, Kalra S, Sun M, Ding Z, Bai S, German P, Zhang X, Tamboli P, Rao P, Karam J, Wood C, Matin S, Tannir N, Sircar K, Jonasch E. Anti-Angiogenic Therapy Induces T-Lymphocyte Infiltration Associated with Poor Survival in Metastatic Renal Cell Carcinoma Patients. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu342.13] [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: 11/12/2022] Open
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36
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Li G, Bai S, Li Y. Daily Delivery Accuracy of Volumetric Modulated Arc Therapy Treatments Using Linac Log Files. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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37
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Wang X, Shen Y, Zhao Y, Li Z, Bai S, Xu F. Long-Term Follow-Up Results of Simultaneous Integrated or Late Course Accelerated Boost With EBRT to Vaginal Stump in Intermediate-Risk Cervical Cancer Patients After Radical Hysterectomy. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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38
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Zhou L, Bai S, Zhang Y, Ming X, Zhang Y, Deng J. SU-D-9A-07: Imaging Dose and Cancer Risk in Image-Guided Radiotherapy of Cancers. Med Phys 2014. [DOI: 10.1118/1.4887923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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39
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Han F, Liu S, Liu X, Pei Y, Bai S, Zhao H, Lu Q, Ma F, Kaplan DL, Zhu H. Woven silk fabric-reinforced silk nanofibrous scaffolds for regenerating load-bearing soft tissues. Acta Biomater 2014; 10:921-30. [PMID: 24090985 DOI: 10.1016/j.actbio.2013.09.026] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Revised: 09/03/2013] [Accepted: 09/23/2013] [Indexed: 11/19/2022]
Abstract
Although three-dimensional (3-D) porous regenerated silk scaffolds with outstanding biocompatibility, biodegradability and low inflammatory reactions have promising application in different tissue regeneration, the mechanical properties of regenerated scaffolds, especially suture retention strength, must be further improved to satisfy the requirements of clinical applications. This study presents woven silk fabric-reinforced silk nanofibrous scaffolds aimed at dermal tissue engineering. To improve the mechanical properties, silk scaffolds prepared by lyophilization were reinforced with degummed woven silk fabrics. The ultimate tensile strength, elongation at break and suture retention strength of the scaffolds were significantly improved, providing suitable mechanical properties strong enough for clinical applications. The stiffness and degradation behaviors were then further regulated by different after-treatment processes, making the scaffolds more suitable for dermal tissue regeneration. The in vitro cell culture results indicated that these scaffolds maintained their excellent biocompatibility after being reinforced with woven silk fabrics. Without sacrifice of porous structure and biocompatibility, the fabric-reinforced scaffolds with better mechanical properties could facilitate future clinical applications of silk as matrices in skin repair.
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Affiliation(s)
- F Han
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China; Key Lab of Rubber-Plastics (QUST), Ministry of Education, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - S Liu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - X Liu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Y Pei
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - S Bai
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - H Zhao
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Q Lu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
| | - F Ma
- Key Lab of Rubber-Plastics (QUST), Ministry of Education, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - D L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - H Zhu
- Research Center of Materials Science, Beijing Institute of Technology, Beijing 100081, China
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40
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White GR, Ainsworth R, Akagi T, Alabau-Gonzalvo J, Angal-Kalinin D, Araki S, Aryshev A, Bai S, Bambade P, Bett DR, Blair G, Blanch C, Blanco O, Blaskovic-Kraljevic N, Bolzon B, Boogert S, Burrows PN, Christian G, Corner L, Davis MR, Faus-Golfe A, Fukuda M, Gao J, García-Morales H, Geffroy N, Hayano H, Heo AY, Hildreth M, Honda Y, Huang JY, Hwang WH, Iwashita Y, Jang S, Jeremie A, Kamiya Y, Karataev P, Kim ES, Kim HS, Kim SH, Kim YI, Komamiya S, Kubo K, Kume T, Kuroda S, Lam B, Lekomtsev K, Liu S, Lyapin A, Marin E, Masuzawa M, McCormick D, Naito T, Nelson J, Nevay LJ, Okugi T, Omori T, Oroku M, Park H, Park YJ, Perry C, Pfingstner J, Phinney N, Rawankar A, Renier Y, Resta-López J, Ross M, Sanuki T, Schulte D, Seryi A, Shevelev M, Shimizu H, Snuverink J, Spencer C, Suehara T, Sugahara R, Takahashi T, Tanaka R, Tauchi T, Terunuma N, Tomás R, Urakawa J, Wang D, Warden M, Wendt M, Wolski A, Woodley M, Yamaguchi Y, Yamanaka T, Yan J, Yokoya K, Zimmermann F. Experimental validation of a novel compact focusing scheme for future energy-frontier linear lepton colliders. Phys Rev Lett 2014; 112:034802. [PMID: 24484144 DOI: 10.1103/physrevlett.112.034802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Indexed: 06/03/2023]
Abstract
A novel scheme for the focusing of high-energy leptons in future linear colliders was proposed in 2001 [P. Raimondi and A. Seryi, Phys. Rev. Lett. 86, 3779 (2001)]. This scheme has many advantageous properties over previously studied focusing schemes, including being significantly shorter for a given energy and having a significantly better energy bandwidth. Experimental results from the ATF2 accelerator at KEK are presented that validate the operating principle of such a scheme by demonstrating the demagnification of a 1.3 GeV electron beam down to below 65 nm in height using an energy-scaled version of the compact focusing optics designed for the ILC collider.
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Affiliation(s)
- G R White
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025-7090, USA
| | - R Ainsworth
- John Adams Institute for Accelerator Science at Royal Holloway University of London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - T Akagi
- Department of Physics, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - J Alabau-Gonzalvo
- European Organization for Nuclear Research (CERN), CH-1211 Geneva 23, Switzerland
| | - D Angal-Kalinin
- CLRC: Daresbury Laboratory, Daresbury, Warrington, Cheshire WA4 4AD, United Kingdom
| | - S Araki
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - A Aryshev
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - S Bai
- Institute of High Energy Physics (IHEP), Chinese Academy of Sciences (CAS), Beijing, China
| | - P Bambade
- LAL, Universite Paris-Sud, CNRS/IN2P3, Orsay, France
| | - D R Bett
- John Adams Institute for Accelerator Science at University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom
| | - G Blair
- John Adams Institute for Accelerator Science at Royal Holloway University of London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom and Science and Technology Facilities Council, Polaris House, North Star Avenue, Swindon SN2 1SZ, United Kingdom
| | - C Blanch
- Universidad de Valencia - Instituto de Física Corpuscular (IFC), Edificio Institutos de Investigación, c/ Catedrático José Beltrán, 2, E-46980 Paterna, Spain
| | - O Blanco
- European Organization for Nuclear Research (CERN), CH-1211 Geneva 23, Switzerland and LAL, Universite Paris-Sud, CNRS/IN2P3, Orsay, France
| | - N Blaskovic-Kraljevic
- John Adams Institute for Accelerator Science at University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom
| | - B Bolzon
- European Organization for Nuclear Research (CERN), CH-1211 Geneva 23, Switzerland and CLRC: Daresbury Laboratory, Daresbury, Warrington, Cheshire WA4 4AD, United Kingdom and Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Oxford St., Liverpool L69 3BX, United Kingdom
| | - S Boogert
- John Adams Institute for Accelerator Science at Royal Holloway University of London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - P N Burrows
- John Adams Institute for Accelerator Science at University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom
| | - G Christian
- John Adams Institute for Accelerator Science at University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom
| | - L Corner
- John Adams Institute for Accelerator Science at University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom
| | - M R Davis
- John Adams Institute for Accelerator Science at University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom
| | - A Faus-Golfe
- Universidad de Valencia - Instituto de Física Corpuscular (IFC), Edificio Institutos de Investigación, c/ Catedrático José Beltrán, 2, E-46980 Paterna, Spain
| | - M Fukuda
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - J Gao
- Institute of High Energy Physics (IHEP), Chinese Academy of Sciences (CAS), Beijing, China
| | - H García-Morales
- European Organization for Nuclear Research (CERN), CH-1211 Geneva 23, Switzerland and Universitat Politécnica de Catalunya, BarcelonaTech, C. Jordi Girona, 31. 08034 Barcelona, Spain
| | - N Geffroy
- LAPP-Universite de Savoie-CNRS/IN2P3, Annecy-le-Vieux, France
| | - H Hayano
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - A Y Heo
- Department of Physics, Kyungpook National University, 1370 San Kyuk-dong, Puk ku, Taegu 635, South Korea
| | - M Hildreth
- University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Y Honda
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - J Y Huang
- Pohang Accelerator Laboratory, POSTECH (Pohang University of Science and Technology), San-31 Hyoja-dong, Pohang 790-784, South Korea
| | - W H Hwang
- Pohang Accelerator Laboratory, POSTECH (Pohang University of Science and Technology), San-31 Hyoja-dong, Pohang 790-784, South Korea
| | - Y Iwashita
- Institute for Chemical Research (ICR), Nuclear Science Research Facility, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - S Jang
- Department of Physics, Kyungpook National University, 1370 San Kyuk-dong, Puk ku, Taegu 635, South Korea
| | - A Jeremie
- LAPP-Universite de Savoie-CNRS/IN2P3, Annecy-le-Vieux, France
| | - Y Kamiya
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan
| | - P Karataev
- John Adams Institute for Accelerator Science at Royal Holloway University of London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - E S Kim
- Department of Physics, Kyungpook National University, 1370 San Kyuk-dong, Puk ku, Taegu 635, South Korea
| | - H S Kim
- Department of Physics, Kyungpook National University, 1370 San Kyuk-dong, Puk ku, Taegu 635, South Korea
| | - S H Kim
- Pohang Accelerator Laboratory, POSTECH (Pohang University of Science and Technology), San-31 Hyoja-dong, Pohang 790-784, South Korea
| | - Y I Kim
- John Adams Institute for Accelerator Science at University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom
| | - S Komamiya
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan
| | - K Kubo
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - T Kume
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - S Kuroda
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - B Lam
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025-7090, USA
| | - K Lekomtsev
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - S Liu
- LAL, Universite Paris-Sud, CNRS/IN2P3, Orsay, France
| | - A Lyapin
- John Adams Institute for Accelerator Science at Royal Holloway University of London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - E Marin
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025-7090, USA
| | - M Masuzawa
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - D McCormick
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025-7090, USA
| | - T Naito
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - J Nelson
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025-7090, USA
| | - L J Nevay
- John Adams Institute for Accelerator Science at University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom and John Adams Institute for Accelerator Science at Royal Holloway University of London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - T Okugi
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - T Omori
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - M Oroku
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan
| | - H Park
- Department of Physics, Kyungpook National University, 1370 San Kyuk-dong, Puk ku, Taegu 635, South Korea
| | - Y J Park
- Pohang Accelerator Laboratory, POSTECH (Pohang University of Science and Technology), San-31 Hyoja-dong, Pohang 790-784, South Korea
| | - C Perry
- John Adams Institute for Accelerator Science at University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom
| | - J Pfingstner
- European Organization for Nuclear Research (CERN), CH-1211 Geneva 23, Switzerland
| | - N Phinney
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025-7090, USA
| | - A Rawankar
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - Y Renier
- European Organization for Nuclear Research (CERN), CH-1211 Geneva 23, Switzerland
| | - J Resta-López
- Universidad de Valencia - Instituto de Física Corpuscular (IFC), Edificio Institutos de Investigación, c/ Catedrático José Beltrán, 2, E-46980 Paterna, Spain
| | - M Ross
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025-7090, USA
| | - T Sanuki
- Tohoku University, 28 Kawauchi, Aoba-ku, Sendai, 980-8576 Japan
| | - D Schulte
- European Organization for Nuclear Research (CERN), CH-1211 Geneva 23, Switzerland
| | - A Seryi
- John Adams Institute for Accelerator Science at University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom
| | - M Shevelev
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - H Shimizu
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - J Snuverink
- John Adams Institute for Accelerator Science at Royal Holloway University of London, Egham Hill, Egham, Surrey TW20 0EX, United Kingdom
| | - C Spencer
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025-7090, USA
| | - T Suehara
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan
| | - R Sugahara
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - T Takahashi
- Department of Physics, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - R Tanaka
- Department of Physics, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - T Tauchi
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - N Terunuma
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - R Tomás
- European Organization for Nuclear Research (CERN), CH-1211 Geneva 23, Switzerland
| | - J Urakawa
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - D Wang
- Institute of High Energy Physics (IHEP), Chinese Academy of Sciences (CAS), Beijing, China
| | - M Warden
- John Adams Institute for Accelerator Science at University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom
| | - M Wendt
- European Organization for Nuclear Research (CERN), CH-1211 Geneva 23, Switzerland
| | - A Wolski
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Oxford St., Liverpool L69 3BX, United Kingdom
| | - M Woodley
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025-7090, USA
| | - Y Yamaguchi
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan
| | - T Yamanaka
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan
| | - J Yan
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan
| | - K Yokoya
- High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - F Zimmermann
- European Organization for Nuclear Research (CERN), CH-1211 Geneva 23, Switzerland
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Thanikachalam M, Bai S, Harivanzan V, Shoben A, Baliga R, Thanikachalam S. Gender-Specific Plasma Triglyceride/High-Density Lipoprotein Cholesterol Concentration Ratio Levels to Identify Insulin Resistance and Associated Cardio-Metabolic Risk Factors in a South Asian Population. Can J Cardiol 2013. [DOI: 10.1016/j.cjca.2013.07.537] [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: 10/26/2022] Open
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Zhou L, Liu J, Zhang Y, Gong Y, Bai S, Lu Y. Radiation Pneumonitis Following Simplified Intensity Modulated Radiation Therapy for Lung Cancer. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1334] [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: 10/26/2022]
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Guo H, Gao M, Lu Y, Liang J, Lorenzi PL, Bai S, Hawke DH, Li J, Dogruluk T, Scott KL, Jonasch E, Mills GB, Ding Z. Coordinate phosphorylation of multiple residues on single AKT1 and AKT2 molecules. Oncogene 2013; 33:3463-72. [PMID: 23912456 DOI: 10.1038/onc.2013.301] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Revised: 06/04/2013] [Accepted: 06/11/2013] [Indexed: 12/14/2022]
Abstract
Aberrant AKT activation is prevalent across multiple human cancer lineages providing an important new target for therapy. Twenty-two independent phosphorylation sites have been identified on specific AKT isoforms likely contributing to differential isoform regulation. However, the mechanisms regulating phosphorylation of individual AKT isoform molecules have not been elucidated because of the lack of robust approaches able to assess phosphorylation of multiple sites on a single AKT molecule. Using a nanofluidic proteomic immunoassay (NIA), consisting of isoelectric focusing followed by sensitive chemiluminescence detection, we demonstrate that under basal and ligand-induced conditions that the pattern of phosphorylation events is markedly different between AKT1 and AKT2. Indeed, there are at least 12 AKT1 peaks and at least 5 AKT2 peaks consistent with complex combinations of phosphorylation of different sites on individual AKT molecules. Following insulin stimulation, AKT1 was phosphorylated at Thr308 in the T-loop and Ser473 in the hydrophobic domain. In contrast, AKT2 was only phosphorylated at the equivalent sites (Thr309 and Ser474) at low levels. Further, Thr308 and Ser473 phosphorylation occurred predominantly on the same AKT1 molecules, whereas Thr309 and Ser474 were phosphorylated primarily on different AKT2 molecules. Although basal AKT2 phosphorylation was sensitive to inhibition of phosphatidylinositol 3-kinase (PI3K), basal AKT1 phosphorylation was essentially resistant. PI3K inhibition decreased pThr451 on AKT2 but not pThr450 on AKT1. Thus, NIA technology provides an ability to characterize coordinate phosphorylation of individual AKT molecules providing important information about AKT isoform-specific phosphorylation, which is required for optimal development and implementation of drugs targeting aberrant AKT activation.
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Affiliation(s)
- H Guo
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - M Gao
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Y Lu
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - J Liang
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - P L Lorenzi
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - S Bai
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - D H Hawke
- Department of Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - J Li
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - T Dogruluk
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - K L Scott
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - E Jonasch
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - G B Mills
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Z Ding
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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Bai S, Liu S, Zhang C, Xu W, Lu Q, Han H, Kaplan DL, Zhu H. Controllable transition of silk fibroin nanostructures: an insight into in vitro silk self-assembly process. Acta Biomater 2013; 9:7806-13. [PMID: 23628774 DOI: 10.1016/j.actbio.2013.04.033] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Revised: 04/15/2013] [Accepted: 04/18/2013] [Indexed: 11/29/2022]
Abstract
Silk fiber is one of the strongest and toughest biological materials with hierarchical structures, where nanofibril with size <20nm is a critical factor in determining its excellent mechanical properties. Although silk nanofibrils have been found in natural and regenerated silk solutions, there is no way to actively control nanofibril formation in aqueous solution. This study shows a simple but effective method of preparing silk nanofibrils by regulating the silk self-assembly process. Through a repeated drying-dissolving process, a silk fibroin solution composed of metastable nanoparticles was first prepared and then used to reassemble nanofibrils with different sizes and secondary conformations under various temperatures and concentrations. These nanofibrils have a similar size to that of natural fibers, providing a suitable unit to further assemble the hierarchical structure in vitro. Several important issues, such as the relationships between silk nanofibrils, secondary conformations and viscosity, are also investigated, giving a new insight into the self-assembly process. In summary, besides rebuilding silk nanofibrils in aqueous solution, this study provides an important model for furthering the understanding of silk structures, properties and forming mechanisms, making it possible to regenerate silk materials with exceptional properties in the future.
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Affiliation(s)
- S Bai
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, People's Republic of China
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Jiang XQ, Jiang QF, Li T, Xiao JH, Zhong RM, Li GJ, Bai S. SU-E-J-101: Application of a Combination Method of Atlas-Based and Model-Based Auto-Segmentation in Thorax-And-Abdomen Cancer. Med Phys 2013. [DOI: 10.1118/1.4814313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Wang P, Luan X, Wang G, Liu W, Zhang J, Li W, Gao X, Wang Y, Mao Y, Sun X, Wang Q, Zhang Y, Bai S. Efficacy and safety of short-term administration of recombinant human atrial natriuretic peptide (rhANP) for congestive heart failure: a phase II, multicentre randomized controlled dose-finding study. J Clin Pharm Ther 2013; 38:388-93. [PMID: 23672267 DOI: 10.1111/jcpt.12072] [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: 09/16/2012] [Accepted: 04/21/2013] [Indexed: 11/29/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE Although the long-term infusion of ANP has proved effective to treat heart failure, no published randomized controlled study has been reported to confirm the efficacy of the short-term ANP infusion in congestive heart failure (CHF) patients. This study was designed to assess the efficacy and safety of short-term infusion of recombinant human atrial natriuretic peptide (rhANP) in CHF patients. METHODS A total of 48 patients with CHF were enrolled and randomized into four groups, treated with standard therapy or rhANP (0·05, 0·1 or 0·2 μg/kg/min) for 1-hour infusion in addition to standard therapy. The hemodynamics were assessed for 12 h by Swan-Ganz catheter. RESULTS AND DISCUSSION The effect of the 0·05 μg/kg/min rhANP dose group on CO was modest and transient. The 0·2 μg/kg/min rhANP dose group tended to be associated with better effect on SV, CO and dyspnoea improvement, but modest effect on PCWP and more adverse events probably attributed to the study drug. However, the 0·1 μg/kg/min rhANP infusion was well tolerated and effective both on PCWP decrease (maximum:-9·46 ± 5·81 mmHg compared with baseline (P = 0·0002) and -6·75 mmHg compared with standard therapy, the 95% confidential interval [-13·43, -0·06 mmHg] at 1 h) and CO increase (maximum: 1·02 ± 1·43 L/min [P = 0·0308] at 1 h). WHAT IS NEW AND CONCLUSION In this small-sample study, 1-hour infusion of rhANP produced beneficial hemodynamic effects in CHF patients compared with standard therapy, and it was well tolerated. 0·1 μg/kg/min may be the optimum dose for short-term rhANP infusion to treat CHF for the further large sample trial before clinical application.
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Affiliation(s)
- P Wang
- State Key Laboratory of Cardiovascular Diseases, Fu Wai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Yang J, Bai F, Zhang K, Bai S, Peng X, Ding X, Li Y, Zhang J, Zhao L. Effects of feeding corn naturally contaminated with aflatoxin B1 and B2 on hepatic functions of broilers. Poult Sci 2012; 91:2792-801. [PMID: 23091134 DOI: 10.3382/ps.2012-02544] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The purpose of this study was to evaluate the effects of feeding corn naturally contaminated with aflatoxin B(1) (AFB(1)) and aflatoxin B(2) (AFB(2)) on serum biochemical parameters, hepatic antioxidant enzyme activities, and pathological lesions of broilers. In total, 1,200 Cobb male broilers were randomly allocated into 5 treatments, with 8 replicates per treatment and 30 birds per replicate, in a 42-d experiment. The dietary treatments were as follows: control, 25, 50, 75, and 100% contaminated corn groups. Results showed that serum aspartate aminotransferase activity in the 75 and 100% contaminated groups were higher than that in the control group on d 21 (P < 0.05). Decreased content of hepatic total protein and increased activities of hepatic glutathione reductase and glutathione-S-transferase were observed as the percentage of contaminated corn increased (P < 0.05). The activity of superoxide dismutase and the content of hepatic malondialdehyde increased when the broilers were fed with more than 50% contaminated corn (P < 0.05). A reduction in glutathione peroxidase level was observed in the AFB(1)- and AFB(2)-contaminated groups on d 21 (P < 0.05). The average pathological lesion scores and apoptosis rate of liver cells increased as the concentration of dietary AFB(1) and AFB(2) increased. Ultrastructural changes were found in the livers of broilers fed 100% contaminated corn. In conclusion, diets containing AFB(1) and AFB(2) could induce pathological lesions in the livers, slightly change the serum biochemical parameters, and damage the hepatic antioxidant functions when the inclusion of AFB(1)- and AFB(2)-contaminated corn reached or exceeded 50%.
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Affiliation(s)
- J Yang
- Sichuan Agricultural University, Sichuan, China
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Tran N, Skafidas E, Yang J, Bai S, Fu M, Ng D, Halpern M, Mareels I. A prototype 64-electrode stimulator in 65 nm CMOS process towards a high density epi-retinal prosthesis. Annu Int Conf IEEE Eng Med Biol Soc 2012; 2011:6729-32. [PMID: 22255883 DOI: 10.1109/iembs.2011.6091660] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
This paper presents a highly flexible 64-electrode stimulator using 65 nm CMOS process fabricated as a stage towards a 1024-electrode epi-retinal prosthesis, which aims to restore partial vision in patients suffering from eye diseases such as retinitis pigmentosa (RP) and age-related macular degradation (AMD). The stimulator drives 64 electrodes with many flexible features, which are necessary before making a complete 1024-electrode implant chip. Each electrode driver can provide a bi-phasic stimulus current with fully programmable parameters such as amplitude, pulse duration, inter-phase gap, and stimulation rate. The electrode driver operates in an alternately pull-push manner with only one current source working at a time, which helps reduce headroom voltage while controlling charge balance at the active electrode. The stimulator varies both stimulus current amplitude and stimulation rate to represent phosphene brightness. The stimulus current amplitude starts from the tissue depolarization threshold with 64 different levels. The selection of active and return electrodes is arbitrary, any electrodes and any number of them can be selected at any time. The power consumption of the stimulator is 400 μW excluding the stimulus power. Measurement results verify correct operation. The stimulator is easily scaled up to drive 1024 electrodes.
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Affiliation(s)
- N Tran
- VictoriaResearch Laboratory, Australia’s ICT Research Centre of Excellence, NICTA, Parkville, VIC 3010, Australia
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Rose S, Melnyk S, Pavliv O, Bai S, Nick TG, Frye RE, James SJ. Evidence of oxidative damage and inflammation associated with low glutathione redox status in the autism brain. Transl Psychiatry 2012; 2:e134. [PMID: 22781167 PMCID: PMC3410618 DOI: 10.1038/tp.2012.61] [Citation(s) in RCA: 294] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Despite increasing evidence of oxidative stress in the pathophysiology of autism, most studies have not evaluated biomarkers within specific brain regions, and the functional consequences of oxidative stress remain relatively understudied. We examined frozen samples from the cerebellum and temporal cortex (Brodmann area 22 (BA22)) from individuals with autism and unaffected controls (n=15 and n=12 per group, respectively). Biomarkers of oxidative stress, including reduced glutathione (GSH), oxidized glutathione (GSSG) and glutathione redox/antioxidant capacity (GSH/GSSG), were measured. Biomarkers of oxidative protein damage (3-nitrotyrosine; 3-NT) and oxidative DNA damage (8-oxo-deoxyguanosine; 8-oxo-dG) were also assessed. Functional indicators of oxidative stress included relative levels of 3-chlorotyrosine (3-CT), an established biomarker of a chronic inflammatory response, and aconitase activity, a biomarker of mitochondrial superoxide production. Consistent with previous studies on plasma and immune cells, GSH and GSH/GSSG were significantly decreased in both autism cerebellum (P<0.01) and BA22 (P<0.01). There was a significant increase in 3-NT in the autism cerebellum and BA22 (P<0.01). Similarly, 8-oxo-dG was significantly increased in autism cerebellum and BA22 (P<0.01 and P=0.01, respectively), and was inversely correlated with GSH/GSSG in the cerebellum (P<0.01). There was a significant increase in 3-CT levels in both brain regions (P<0.01), whereas aconitase activity was significantly decreased in autism cerebellum (P<0.01), and was negatively correlated with GSH/GSSG (P=0.01). Together, these results indicate that decreased GSH/GSSG redox/antioxidant capacity and increased oxidative stress in the autism brain may have functional consequence in terms of a chronic inflammatory response, increased mitochondrial superoxide production, and oxidative protein and DNA damage.
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Affiliation(s)
- S Rose
- Department of Pediatrics, University of Arkansas for Medical Sciences, Arkansas Children's Hospital Research Institute, Little Rock, AR 72202, USA.
| | - S Melnyk
- Department of Pediatrics, University of Arkansas for Medical Sciences, Arkansas Children's Hospital Research Institute, Little Rock, AR, USA
| | - O Pavliv
- Department of Pediatrics, University of Arkansas for Medical Sciences, Arkansas Children's Hospital Research Institute, Little Rock, AR, USA
| | - S Bai
- Department of Pediatrics, University of Arkansas for Medical Sciences, Arkansas Children's Hospital Research Institute, Little Rock, AR, USA
| | - T G Nick
- Department of Pediatrics, University of Arkansas for Medical Sciences, Arkansas Children's Hospital Research Institute, Little Rock, AR, USA
| | - R E Frye
- Department of Pediatrics, University of Arkansas for Medical Sciences, Arkansas Children's Hospital Research Institute, Little Rock, AR, USA
| | - S J James
- Department of Pediatrics, University of Arkansas for Medical Sciences, Arkansas Children's Hospital Research Institute, Little Rock, AR, USA
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