1
|
Wang W, Zhang G, Wang Y, Ran J, Chen L, Wei Z, Zou H, Cai Y, Han W. An injectable and thermosensitive hydrogel with nano-aided NIR-II phototherapeutic and chemical effects for periodontal antibacteria and bone regeneration. J Nanobiotechnology 2023; 21:367. [PMID: 37805588 PMCID: PMC10559606 DOI: 10.1186/s12951-023-02124-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 09/21/2023] [Indexed: 10/09/2023] Open
Abstract
Periodontitis is a common public health problem worldwide and an inflammatory disease with irregular defect of alveolar bone caused by periodontal pathogens. Both antibacterial therapy and bone regeneration are of great importance in the treatment of periodontitis. In this study, injectable and thermosensitive hydrogels with 3D networks were used as carriers for controlled release of osteo-inductive agent (BMP-2) and Near Infrared Region-II (NIR-II) phototherapy agents (T8IC nano-particles). T8IC nano-particles were prepared by reprecipitation and acted as photosensitizer under 808 nm laser irradiation. Besides, we promoted photodynamic therapy (PDT) through adding H2O2 to facilitate the antibacterial effect instead of increasing the temperature of photothermal therapy (PTT). Hydrogel + T8IC + Laser + BMP-2 + H2O2 incorporated with mild PTT (45 °C), enhanced PDT and sustained release of BMP-2. It was present with excellent bactericidal effect, osteogenic induction and biosafety both in vitro and in vivo. Besides, immunohistochemistry staining and micro-CT analyses had confirmed that PTT and PDT could promote bone regeneration through alleviating inflammation state. Altogether, this novel approach with synergistic antibacterial effect, anti-inflammation and bone regeneration has a great potential for the treatment of periodontitis in the future.
Collapse
Affiliation(s)
- Weixiang Wang
- Fourth Clinical Division, Nanjing Stomatological Hospital, Affiliated Hospital of Medical School Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China
| | - Guorong Zhang
- Department of Orthodontics, Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China
| | - Yanyi Wang
- Department of Orthodontics, Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China
| | - Jianchuan Ran
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China
| | - Lin Chen
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China
| | - Zheng Wei
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China
| | - Huihui Zou
- Pediatric Dentistry, Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China
| | - Yu Cai
- Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Cancer Center, Affiliated People's Hospital, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, 310014, Zhejiang, China.
| | - Wei Han
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China.
- Pediatric Dentistry, Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China.
| |
Collapse
|
2
|
Zhang X, Cao Z, Song C, Wei Z, Zhou M, Chen S, Ran J, Zhang H, Zou H, Han S, Cai Y, Han W. Cholesterol Metabolism Modulation Nanoplatform Improves Photo-Immunotherapeutic Effect in Oral Squamous Cell Carcinoma. Adv Healthc Mater 2023; 12:e2300018. [PMID: 37209373 DOI: 10.1002/adhm.202300018] [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: 01/03/2023] [Revised: 05/12/2023] [Indexed: 05/22/2023]
Abstract
Impressive results in cancer treatment have been obtained through immunotherapy. However, abnormally high cholesterol metabolism in the tumor microenvironment (TME) leads to poor immunogenicity or even immunosuppression, which dramatically reduces the clinical response of patients with oral squamous cell carcinoma (OSCC) to immunotherapy. In this study, a cholesterol-modulating nanoplatform (PYT NP) is developed to restore the normal immune microenvironment, significantly inhibiting SQLE (an essential gene for cholesterol biosynthesis in tumor cells) by releasing terbinafine, thereby reducing cholesterol in the TME and suppressing tumor cell proliferation. In addition, the nanoplatform is equipped with a second near-infrared (NIR-II) photosensitizer, Y8, which triggers immunogenic cell death of tumor cells, thereby promoting intra-tumor infiltration and immune activation via the production of damage-associated molecular patterns for photoimmunotherapy. PYT NPs show great promise in stimulating strong cholesterol-modulating anticancer immunity combined with photoimmunotherapy, opening up a new avenue for sensitized OSCC immunotherapy.
Collapse
Affiliation(s)
- Xinyu Zhang
- Department of Oral Medicine, Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 30 Zhongyang Road, Nanjing, 210008, China
| | - Zichen Cao
- Department of Oral Medicine, Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 30 Zhongyang Road, Nanjing, 210008, China
| | - Chuanhui Song
- Institute of Translational Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 321 Zhongshan Road, Nanjing, 210008, China
| | - Zheng Wei
- Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 30 Zhongyang Road, Nanjing, 210008, China
| | - Meng Zhou
- Department of Oral and Maxillofacial Surgery, Xuzhou Stomatological Hospital, Affiliated Stomatological Hospital of Xuzhou Medical University, No. 130 Huaihai Road, Xuzhou, 221000, China
| | - Si Chen
- Department of Oral Medicine, Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 30 Zhongyang Road, Nanjing, 210008, China
| | - Jianchuan Ran
- Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 30 Zhongyang Road, Nanjing, 210008, China
| | - Hongbo Zhang
- Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 30 Zhongyang Road, Nanjing, 210008, China
| | - Huihui Zou
- Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 30 Zhongyang Road, Nanjing, 210008, China
| | - Shengwei Han
- Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 30 Zhongyang Road, Nanjing, 210008, China
| | - Yu Cai
- Department of Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, No. 158 Shangtang Road, Hangzhou, Zhejiang, 310014, China
| | - Wei Han
- Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 30 Zhongyang Road, Nanjing, 210008, China
| |
Collapse
|
3
|
Xiang Y, Wang X, Cao X, Wei F, Chen Y, Ran J, Long Z, Tan Q, Lai Z, Liu L, Zhao D, Xiong L, Tang B, Wan W, Hu K. Efficacy of cataract surgeries performed during blindness prevention programs in Chongqing, China: a multicenter prospective study. BMC Ophthalmol 2023; 23:353. [PMID: 37563617 PMCID: PMC10413487 DOI: 10.1186/s12886-023-03082-1] [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: 01/05/2023] [Accepted: 07/14/2023] [Indexed: 08/12/2023] Open
Abstract
OBJECTIVE To determine the efficacy of cataract surgeries in blindness prevention programs in Chongqing. METHODS During February-December 2019, we prospectively enrolled 487 patients (592 eyes) undergoing cataract surgery during blindness prevention programs in 6 Chongqing district/county hospitals (experimental group) and 481 patients (609 eyes) undergoing cataract surgery in the First Affiliated Hospital of Chongqing Medical University (controls). Uncorrected visual acuity (UCVA), refractive status, best corrected visual acuity (BCVA), slit lamp examination, and visual function/quality of life (VF-QOL) questionnaire scores were evaluated preoperatively, and at 1 and 6 months postoperatively. RESULTS In the experimental group, UCVA, BCVA, and VF-QOL scores at 1 and 6 months were better than the preoperative values (P < 0.05), but lower than the control-group values (P < 0.05). Rates of good UCVA and BCVA outcomes (≤ 0.5 logMAR) in the experimental group were 76.2% and 87.6%, respectively, at 1 month and 68.9% and 83.1%, respectively, at 6 months. Most eyes in the experimental (82.1%) and control (89.5%) groups had refractive errors within ± 1 D at 1 month. At 6 months, posterior capsule opacification (PCO) was more common in the experimental group (20.9% vs. 15.0%, P < 0.05). At 6 months, the main causes of visual impairment (UCVA > 0.5 logMAR) in the experimental group were uncorrected refractive errors (33.0%), PCO (29.5%), and fundus diseases (33.9%). CONCLUSION Cataract surgeries in blindness prevention programs in Chongqing significantly improved visual acuity, VF, and QOL, but underperformed compared to surgeries in the tertiary teaching hospital.
Collapse
Affiliation(s)
- Yongguo Xiang
- Chongqing Medical University, Chongqing, People's Republic of China
| | - Xiaoqin Wang
- People's Hospital of Tongliang District, Tongliang District, Chongqing, People's Republic of China
| | - Xiaochuan Cao
- People's Hospital of Tongliang District, Tongliang District, Chongqing, People's Republic of China
| | - Fang Wei
- Youyang County People's Hospital, Youyang County, Chongqing, People's Republic of China
| | - Yu Chen
- Youyang County People's Hospital, Youyang County, Chongqing, People's Republic of China
| | - Jianchuan Ran
- Qianjiang Central Hospital, Qianjiang District, Chongqing, People's Republic of China
| | - Zhengqin Long
- Qianjiang Central Hospital, Qianjiang District, Chongqing, People's Republic of China
| | - Qunwu Tan
- Wushan County People's Hospital, Wushan County, Chongqing, People's Republic of China
| | - Zhenying Lai
- Wushan County People's Hospital, Wushan County, Chongqing, People's Republic of China
| | - Li Liu
- People's Hospital of Dazu District, Dazu District, Chongqing, People's Republic of China
| | - Desheng Zhao
- People's Hospital of Dazu District, Dazu District, Chongqing, People's Republic of China
| | - Liang Xiong
- People's Hospital of Jiangbei District, Jiangbei District, Chongqing, People's Republic of China
| | - Bin Tang
- People's Hospital of Jiangbei District, Jiangbei District, Chongqing, People's Republic of China
| | - Wenjuan Wan
- Chongqing Medical University, Chongqing, People's Republic of China.
- Chongqing Key Laboratory of Ophthalmology, Chongqing Branch (Municipality Division) of National Clinical Research Center for Ocular Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing Eye Institute, Chongqing, People's Republic of China.
| | - Ke Hu
- Chongqing Medical University, Chongqing, People's Republic of China.
- Chongqing Key Laboratory of Ophthalmology, Chongqing Branch (Municipality Division) of National Clinical Research Center for Ocular Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing Eye Institute, Chongqing, People's Republic of China.
| |
Collapse
|
4
|
Liu B, Liu L, Ran J, Xie N, Li J, Xiao H, Yang X, Tian C, Wu H, Lu J, Gao J, Hu X, Cao M, Shui Z, Hu ZY, Ouyang Q. A randomized trial of eribulin monotherapy versus eribulin plus anlotinib in patients with locally recurrent or metastatic breast cancer. ESMO Open 2023; 8:101563. [PMID: 37285718 DOI: 10.1016/j.esmoop.2023.101563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 04/16/2023] [Accepted: 04/18/2023] [Indexed: 06/09/2023] Open
Abstract
BACKGROUND Eribulin mesylate is a novel, nontaxane, microtubule dynamics inhibitor. In this study, we assessed the efficacy and safety of eribulin versus eribulin plus the oral small-molecule tyrosine kinase inhibitor anlotinib in patients with locally recurrent or metastatic breast cancer. PATIENTS AND METHODS In this single-center, open-label, phase II clinical study (NCT05206656) conducted in a Chinese hospital, patients with human epidermal growth factor receptor 2 (HER2)-negative, locally recurrent or metastatic breast cancer previously treated with anthracycline- or taxane-based chemotherapy were randomized (1 : 1) to receive eribulin alone or in combination with anlotinib. The primary efficacy endpoint was investigator-assessed progression-free survival (PFS). RESULTS From June 2020 to April 2022, a total of 80 patients were randomly assigned to either eribulin monotherapy or eribulin plus anlotinib combination therapy, with 40 patients in each group. The data cut-off was 10 August 2022. The median PFS was 3.5 months [95% confidence interval (CI) 2.8-5.5 months] for eribulin and 5.1 months (95% CI 4.5-6.9 months) for eribulin plus anlotinib (hazard ratio = 0.56, 95% CI 0.32-0.98; P = 0.04). The objective response rates were 32.5% versus 52.5% (P = 0.07), respectively, and disease control rates were 67.5% versus 92.5% (P = 0.01), respectively. Patients <50 years of age, with an Eastern Cooperative Oncology Group performance status score of 0, visceral metastasis, number of treatment lines of four or more, hormone receptor negative (triple-negative), and HER2 low expression appeared to benefit more from combined treatment. The most common adverse events in both groups were leukopenia (n = 28, 70.0%, patients in the eribulin monotherapy group versus n = 35, 87.5%, patients in the combination therapy group), aspartate aminotransferase elevations (n = 28, 70.0%, versus n = 35, 87.5%), neutropenia (n = 25, 62.5%, versus n = 31, 77.5%), and alanine aminotransferase elevations (n = 25, 62.5%, versus n = 30, 75.0%). CONCLUSION Eribulin plus anlotinib can be considered an alternative treatment option for HER2-negative locally advanced or metastatic breast cancer.
Collapse
Affiliation(s)
- B Liu
- Department of Breast Cancer Medical Oncology, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | - L Liu
- Department of Breast Cancer Medical Oncology, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | - J Ran
- Department of Biostatistics and Bioinformatics, Rollins School of Public Heath, Emory University, Atlanta, USA
| | - N Xie
- Department of Breast Cancer Medical Oncology, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | - J Li
- Department of Breast Cancer Medical Oncology, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | - H Xiao
- Department of Breast Cancer Medical Oncology, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | - X Yang
- Department of Breast Cancer Medical Oncology, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | - C Tian
- Department of Breast Cancer Medical Oncology, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | - H Wu
- Department of Breast Cancer Medical Oncology, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | - J Lu
- Department of Breast Cancer Medical Oncology, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | - J Gao
- Department of Breast Cancer Medical Oncology, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | - X Hu
- Department of Breast Cancer Medical Oncology, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | - M Cao
- Department of Breast Cancer Medical Oncology, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | - Z Shui
- Department of Breast Cancer Medical Oncology, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | - Z-Y Hu
- Department of Breast Cancer Medical Oncology, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China
| | - Q Ouyang
- Department of Breast Cancer Medical Oncology, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, P. R. China.
| |
Collapse
|
5
|
Tang X, Tian G, Huang Y, Ran J, Wen Z, Xu J, Song S, Liu B, Han R, Shi F, Zhang X, Sun H, Gong Y, Li Y, Zhang Z, Chen Z, Luo P. Activation cross sections for reactions induced by 14 MeV neutrons on natural titanium. Appl Radiat Isot 2023; 193:110636. [PMID: 36584411 DOI: 10.1016/j.apradiso.2022.110636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 11/22/2022] [Accepted: 12/23/2022] [Indexed: 12/28/2022]
Abstract
Cross sections for the neutrons around 14 MeV interaction with natural titanium were precisely measured by neutron activation and off-line measurement technique. The fast neutrons were produced by 3H(d,n)4He reaction and the neutron energy was obtained by using the cross section ratio method of 90Zr(n,2n)89Zr to 93Nb(n,2n)92mNb reactions. Experimental cross sections have been acquired for natTi(n,x)46Sc, natTi(n,x)47Sc, 50Ti(n,x)47Ca and 48Ti(n,x)48Sc reactions. The measured cross section data are compared with the experimental data available in the previous literature and evaluated nuclear data from the ENDF/B-VIII.0, JEFF-3.3, JENDL-5, BROND-3.1, CENDL-3.2 and FENDL-3.2b libraries. Furthermore, excitation functions for these reactions were calculated by using the theoretical model based on Talys-1.96 code with default and adjusted parameters. Within experimental error, evaluated nuclear data are mostly consistent with experimental data. The excitation function with adjusted parameters can roughly reproduce the experimental data.
Collapse
Affiliation(s)
- X Tang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - G Tian
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, 516000, China
| | - Y Huang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - J Ran
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Z Wen
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - J Xu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - S Song
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - B Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, 516000, China.
| | - R Han
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, 516000, China
| | - F Shi
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, 516000, China
| | - X Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, 516000, China
| | - H Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, 516000, China
| | - Y Gong
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Y Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Z Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Z Chen
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, 516000, China
| | - P Luo
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China; Advanced Energy Science and Technology Guangdong Laboratory, Huizhou, 516000, China.
| |
Collapse
|
6
|
Ran J, Liu T, Song C, Wei Z, Tang C, Cao Z, Zou H, Zhang X, Cai Y, Han W. Rhythm Mild-Temperature Photothermal Therapy Enhancing Immunogenic Cell Death Response in Oral Squamous Cell Carcinoma. Adv Healthc Mater 2023; 12:e2202360. [PMID: 36401600 DOI: 10.1002/adhm.202202360] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 11/09/2022] [Indexed: 11/20/2022]
Abstract
The low antitumor efficiency and unexpected thermo-tolerance activation of mild-temperature photothermal therapy (mPTT) severely impede the therapeutic efficacy, thereby the implementation of reasonable mPTT procedure to improve antitumor efficiency is of great significance for clinical transformation. Herein, a rhythm mPTT with organic photothermal nanoparticles (PBDB-T NPs) is demonstrated, synergistically increasing tumor elimination and intense immunogenic cancer cell death (ICD) to elicit tumor-specific immune responses for tumor treatment. Specifically, PBDB-T NPs are characterized by favorable biocompatibility, excellent and controllable photothermal properties, exhibit the properties of noninvasive diagnostic imaging, and effective mPTT against oral squamous cell carcinoma (OSCC). Encouragingly, a temperature-dependent release of damage-associated molecular patterns (DAMPs) is discovered during the mPTT-induced ICD. Meanwhile, orchestrated rhythm mPTT referring to radiotherapy procedure amplifies and balances antitumor efficiency and abundant DAMPs generation to gain optimal immune activation within clinical-recommended hyperthermia temperature compared with conventional PTT. The in vitro and in vivo results show that the rhythm mPTT unites the killing effect and ICD induction, generating strong mPTT efficacy and active tumor-specific adaptive immune responses. The study offers a promising strategy and a new opportunity for the clinical application of mPTT.
Collapse
Affiliation(s)
- Jianchuan Ran
- Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China
| | - Tao Liu
- Department of Oral Medicine, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China
| | - Chuanhui Song
- Institute of Translational Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, China
| | - Zheng Wei
- Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China
| | - Chuanchao Tang
- Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China
| | - Zichen Cao
- Department of Oral Medicine, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China
| | - Huihui Zou
- Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China
| | - Xinyu Zhang
- Department of Oral Medicine, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China
| | - Yu Cai
- Department of Rehabilitation Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, 310014, China
| | - Wei Han
- Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China
| |
Collapse
|
7
|
Zhu P, Xiong X, Chen C, Ran J. Association of aldehyde exposure with bone mineral density in the national health and nutrition examination survey (NHANES 2013-2014). J Endocrinol Invest 2022; 45:2085-2096. [PMID: 35788555 DOI: 10.1007/s40618-022-01840-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 06/10/2022] [Indexed: 11/29/2022]
Abstract
PURPOSE The association between aldehyde exposure and bone health in humans remains unclear. This study was to evaluate the association of serum aldehydes with bone mineral density (BMD) and osteopenia/osteoporosis. METHODS We analyzed the US National Health and Nutrition Examination Survey cross-sectional data from 2013 to 2014. Weighted multivariate-adjusted linear regression and logistic regression models were used to assess the association between specific aldehydes and osteopenia/osteoporosis. Associations between aldehyde combinations and BMD were also evaluated using the restricted cubic spline (RCS) method. RESULTS Compared with men in the first tertile, those in the third tertile of propanaldehyde concentration were negatively associated with proximal femur and lumbar spine BMD. Significant inverse associations were observed between benzaldehyde exposure and trochanter BMD in women. Benzaldehyde increased the risk of osteopenia/osteoporosis 2.75-fold [95% confidence interval (CI) = 1.06, 7.11] in the highest tertile in women compared to the lowest tertile concentration. In males, the prevalence of total femur, femur neck, and trochanter osteopenia/osteoporosis was significantly higher in the highest versus the lowest tertile of propanaldehyde exposure, with odds ratios (ORs) of 6.84 (95% CI = 2.33, 20.04), 2.72 (95% CI = 1.18, 6.27), and 3.26 (95% CI = 1.25, 8.56), respectively. RCS regression also showed decreased BMD continuously with increasing serum mixed aldehyde levels. CONCLUSIONS Serum aldehyde concentrations were associated with low BMD and high osteopenia/osteoporosis risk in adults, with propanaldehyde and benzaldehyde being the most critical. Co-exposure to aldehyde combinations was negatively correlated with BMD.
Collapse
Affiliation(s)
- P Zhu
- Department of Endocrinology and Metabolism, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, 510220, China
| | - X Xiong
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, 510220, China
| | - C Chen
- Department of Endocrinology and Metabolism, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, 510220, China
| | - J Ran
- Department of Endocrinology and Metabolism, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, 510220, China.
| |
Collapse
|
8
|
Cao Z, Zhang X, Wei Z, Song C, Zou H, Ran J, Zhang H, Xie D, Han S, Wang Y, Cai Y, Han W. Thrombus-targeted nano-agents for NIR-II diagnostic fluorescence imaging-guided flap thromboembolism multi-model therapy. J Nanobiotechnology 2022; 20:447. [PMID: 36242039 PMCID: PMC9563174 DOI: 10.1186/s12951-022-01649-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 09/25/2022] [Indexed: 11/16/2022] Open
Abstract
In oral and maxillofacial surgery, flap repair is essential to the quality of postoperative life. Still, thrombosis is fatal for the survival of the flaps. Besides, some postoperative thrombotic diseases, such as pulmonary embolism, also intimidate patients’ life. The traditional diagnostic methods are still limited by a large amount of hardware and suffer from inconvenience, delay, and subjectivity. Moreover, the treatments mainly rely upon thrombolytics, such as urokinase (UK) plasminogen activator, which may cause bleeding risk, especially intracerebral hemorrhage. Herein, a kind of poly (lactic-co-glycolic acid) (PLGA) nanoparticles (NPs) containing a first near-infrared window (NIR-I) phototheranostic agent Y8 and urokinase plasminogen activator (UK) as the core, and modified with the fibrin-targeting peptide Gly–Pro–Arg–Pro–Pro (GPRPP) were developed for the flap and postoperative thromboembolism treatment (named GPRPP-Y8U@P). The conjugated molecule Y8 endows GPRPP-Y8U@P with the capacity of NIR-II imaging and excellent photothermal/photodynamic therapeutic effects. In vivo experiments demonstrated that GPRPP-Y8U@P could quickly locate thrombus by NIR-II fluorescence imaging, and semi-quantitative analysis of the embolized blood vessels' paraffin section verified its thrombolytic efficiency. Additionally, the urokinase trapped in the NPs would not result in nonspecific bleeding, tremendously improving physical security and curative effects with minimizing side effects. Overall, the advantages of GPRPP-Y8U@P, such as precise localization of the thrombus, thrombus ablation in the site, and mild side effects, demonstrated the attractiveness of this approach for effective clinical monitoring of thrombus therapy.
Collapse
Affiliation(s)
- Zichen Cao
- Department of Oral Medicine, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China.,Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China
| | - Xinyu Zhang
- Department of Oral Medicine, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China.,Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China
| | - Zheng Wei
- Department of Oral Medicine, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China.,Pediatric Dentistry, Nanjing Stomatology hospital, Medical School of Nanjing University, No 30 Zhongyang road, Nanjing, 210008, China
| | - Chuanhui Song
- Institute of Translational Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, China
| | - Huihui Zou
- Department of Oral Medicine, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China
| | - Jianchuan Ran
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China
| | - Hongbo Zhang
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China
| | - Diya Xie
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China
| | - Shengwei Han
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China
| | - Yufeng Wang
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China
| | - Yu Cai
- Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, 310014, Zhejiang, China.
| | - Wei Han
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China.
| |
Collapse
|
9
|
Lin L, Song C, Wei Z, Zou H, Han S, Cao Z, Zhang X, Zhang G, Ran J, Cai Y, Han W. Multifunctional photodynamic/photothermal nano-agents for the treatment of oral leukoplakia. J Nanobiotechnology 2022; 20:106. [PMID: 35246146 PMCID: PMC8895861 DOI: 10.1186/s12951-022-01310-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 02/14/2022] [Indexed: 02/06/2024] Open
Abstract
Oral leukoplakia (OLK) has gained extensive attention because of the potential risk for malignant transformation. Photosensitizers (PSs) played an indispensable role in the photodynamic therapy (PDT) of OLK, but the poor light sensitivity greatly hampered its clinical application. Herein, a novel organic photosensitive ITIC-Th nanoparticles (ITIC-Th NPs) were developed for OLK photodynamic/photothermal therapy (PTT). ITIC-Th NPs present both high photothermal conversion efficiency (~ 38%) and suitable reactive oxygen species (ROS) generation ability under 660 nm laser irradiation, making them possess excellent PDT and PTT capability. In 4-nitroquinoline 1-oxide (4NQO)-induced oral precancerous animal models, ITIC-Th NPs effectively suppress the OLK's cancerization without apparent topical or systemic toxicity in vivo. This study offers a promising therapeutic strategy for PDT and PTT in OLK treatment, and this study is the first interdisciplinary research in the field of multimodal therapy for OLK.
Collapse
Affiliation(s)
- Lin Lin
- Department of Oral Medicine, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, Nanjing, 210008, China.,Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China
| | - Chuanhui Song
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China.,Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China.,Institute of Translational Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, China
| | - Zheng Wei
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China.,Pediatric Dentistry, Nanjing Stomatology Hospital, Medical School of Nanjing University, No 30 Zhongyang road, Nanjing, 210008, China
| | - Huihui Zou
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China.,Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China
| | - Shengwei Han
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China
| | - Zichen Cao
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China.,Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China
| | - Xinyu Zhang
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China.,Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China
| | - Guorong Zhang
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China
| | - Jianchuan Ran
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China.,Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China
| | - Yu Cai
- Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, 310014, Zhejiang, China.
| | - Wei Han
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China.
| |
Collapse
|
10
|
Bi N, Hu X, Zhao K, Yang Y, Zhang L, E M, Cao J, Ge H, Zhu X, Zhao L, Di Y, Jiang W, Ran J, Zhang H, Zhang T, Shen W, Deng C, Hu C, Chen M, Wang L. P64.04 Hypo-Fractionated Versus Conventionally Fractionated Radiotherapy for Patients with LS-SCLC: An Open-Label, Randomized, Phase 3 Trial. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
11
|
Wei Z, Zou H, Liu G, Song C, Tang C, Chen S, Zhang G, Ran J, Wang Y, Yin X, Cai Y, Han W. Peroxidase-mimicking evodiamine/indocyanine green nanoliposomes for multimodal imaging-guided theranostics for oral squamous cell carcinoma. Bioact Mater 2021; 6:2144-2157. [PMID: 33511313 PMCID: PMC7810628 DOI: 10.1016/j.bioactmat.2020.12.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 11/28/2020] [Accepted: 12/20/2020] [Indexed: 02/06/2023] Open
Abstract
Here, evodiamine (EVO) and the photosensitizer indocyanine green (ICG) were integrated into a liposomal nanoplatform for noninvasive diagnostic imaging and combinatorial therapy against oral squamous cell carcinoma (OSCC). EVO, as an active component extracted from traditional Chinese medicine, not only functioned as an antitumor chemotherapeutic agent but was also capable of 68Ga-chelation, thus working as a contrast agent for positron emission tomography/computed tomography (PET/CT) imaging. Moreover, EVO could exhibit peroxidase-like catalytic activity, converting endogenous tumor H2O2 into cytotoxic reactive oxygen species (ROS), enabling Chemo catalytic therapy beyond the well-known chemotherapy effect of EVO. As proven by in vitro and in vivo experiments, guided by optical imaging and PET/CT imaging, we show that the theragnostic liposomes have a significant inhibiting effect on in situ tongue tumor through photodynamic therapy combined with chemodynamic chemotherapy.
Collapse
Key Words
- ATCC, American Type Culture Collection
- CAT, Catalase Activity
- CDT, Chemodynamic therapy
- DI water, deionized water
- DLS, dynamic light scattering
- DMEM, Dulbecco's modified Eagle's medium
- EPR, enhanced permeability and retention
- EVO, evodiamine
- Evodiamine
- FBS, fetal bovine serum
- FDA, Food and Drug Administration
- FI, fluorescence imaging
- HRP, horseradish peroxidase
- ICG, indocyanine green
- NIR, Near-infrared
- OSCC, Oral squamous cell carcinoma
- Oral squamous cell carcinoma
- PBS, polarization beam splitter
- PDT, Photodynamic therapy
- PET/CT, positron emission tomography/computed tomography
- Peroxidase-mimicking
- ROS, reactive oxygen species
- SD, Sprague-Dawley
- SOSG, singlet oxygen sensor green
- TEM, transmission electron microscope
- THF, tetrahydrofuran
- TMB, tetramethylbenzidine
- Trimodal antitumor therapy
Collapse
Affiliation(s)
- Zheng Wei
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
- Pediatric Dentistry, Nanjing Stomatology Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
| | - Huihui Zou
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
| | - Gongyuan Liu
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, China
| | - Chuanhui Song
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
| | - Chuanchao Tang
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
| | - Sheng Chen
- Department of Oral Pathology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | - Guorong Zhang
- Department of Orthodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing, 210008, China
| | - Jianchuan Ran
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
| | - Yufeng Wang
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
| | - Xiteng Yin
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
| | - Yu Cai
- Clinical Research Institute, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, No. 158 Shangtang Road, Hangzhou, 310014, Zhejiang Province, China
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
| | - Wei Han
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
| |
Collapse
|
12
|
Zou H, Wei Z, Song C, Ran J, Cao Z, Tang C, Zhang G, Cai Y, Lu M, Han W. Novel NIR-II semiconducting molecule incorporating sorafenib for imaging guided synergetic cancer phototherapy and anti-angiogenic therapy. J Mater Chem B 2021; 9:3235-3248. [PMID: 33885627 DOI: 10.1039/d1tb00209k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tumor tissues are not only independent of cancer cells, but also tumor blood vessels. Thus, targeting the tumor blood vessels is as important as targeting the tumor for cancer treatment. Herein, an organic semiconducting molecule named T8IC is developed for the potential phototeranostics in the second near-infrared window (NIR-II, 1000-1700 nm). The T8IC molecule with an electronic-rich core and electron-deficient side edge shows a typical semiconducting structure, which makes the bandgap narrow. With the addition of anti-angiogenic agent sorafenib into T8IC, TS nanoparticles (NPs) were formed by nanoprecipitation with synergetic anti-angiogenic and phototheranostic effects. Compared to the molecular state, the J-aggregative TS NPs were formed with great bathochromic-shifts in both the absorption spectrum (maximum increased from 755 nm to 826 nm) and the emission spectrum (maximum increased from 840 nm to 1030 nm), which endow them with the ideal deep tumor NIR-II fluorescence imaging ability. Besides, TS NPs present both high photothermal conversion efficiency (∼32.47%) and good ROS generation ability, making them possess excellent cancer phototherapy capability. Guided by NIR-II fluorescence imaging, the tumor blood vessels can be cut off via sorafenib and cancer cells can be killed via T8IC simultaneously, making TS NPs show promising potential for the synergistic therapeutic effect in clinical applications.
Collapse
Affiliation(s)
- Huihui Zou
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Song C, Ran J, Wei Z, Wang Y, Chen S, Lin L, Zhang G, Cai Y, Han W. Organic Near-Infrared-II Nanophotosensitizer for Safe Cancer Phototheranostics and Improving Immune Microenvironment against Metastatic Tumor. ACS Appl Mater Interfaces 2021; 13:3547-3558. [PMID: 33443401 DOI: 10.1021/acsami.0c18841] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Current tumor immunotherapy has excellent application prospects compared with traditional radiotherapy and chemotherapy, but there are still limitations, such as considerable side effects. This problem can be partially solved by treating the local tumor to induce antitumor immunity. In our study, a novel organic photosensitizer Y8 was used to synthesize nanoparticles (Y8 NPs) via a simple nanoprecipitation method. Further investigation indicated the practical photodynamic and photothermal effects of Y8 NPs with 808 nm laser irradiation. Because of its long-wavelength absorption, Y8 NPs also have excellent imaging effects near-infrared-II region. In metastatic tumor-bearing murine models, Y8 NPs can effectively induce phototherapy, suppressing the growth of both primary and metastatic tumors without apparent systemic toxicity through local photodynamic and photothermal therapy synergistic enhancement of antitumor immunity. This study offers a promising therapeutic strategy for synergetic phototherapy and immunotherapy in tumor treatment.
Collapse
Affiliation(s)
- Chuanhui Song
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing 210008, China
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing 210008, China
| | - Jianchuan Ran
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing 210008, China
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing 210008, China
| | - Zheng Wei
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing 210008, China
- Pediatric Dentistry, Nanjing Stomatology Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing 210008, China
| | - Yufeng Wang
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing 210008, China
| | - Sheng Chen
- Department of Oral Pathology, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing 210008, China
| | - Lin Lin
- Department of Oral Mucosa Diseases, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing 210008, China
| | - Guorong Zhang
- Department of Orthodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing 210008, China
| | - Yu Cai
- Clinical Research Institute, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, No. 158 Shangtang Road, Hangzhou 310014, Zhejiang Province, P.R. China
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing 210008, China
| | - Wei Han
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, No 30 Zhongyang Road, Nanjing 210008, China
| |
Collapse
|
14
|
Cai Y, Tang C, Wei Z, Song C, Zou H, Zhang G, Ran J, Han W. Fused-Ring Small-Molecule-Based Bathochromic Nano-agents for Tumor NIR-II Fluorescence Imaging-Guided Photothermal/Photodynamic Therapy. ACS Appl Bio Mater 2021; 4:1942-1949. [PMID: 35014463 DOI: 10.1021/acsabm.0c01576] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yu Cai
- Clinical Research Institute, Zhejiang Provincial People’s Hospital, People’s Hospital of Hangzhou Medical College, No. 158 Shangtang Road, Hangzhou 310014, Zhejiang
Province, P.R. China
| | - Chuanchao Tang
- Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, Nanjing 210008, China
| | - Zheng Wei
- Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, Nanjing 210008, China
| | - Chuanhui Song
- Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, Nanjing 210008, China
| | - Huihui Zou
- Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, Nanjing 210008, China
| | - Guorong Zhang
- Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, Nanjing 210008, China
| | - Jianchuan Ran
- Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, Nanjing 210008, China
| | - Wei Han
- Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, Nanjing 210008, China
| |
Collapse
|
15
|
Zhang G, Wang W, Zou H, Wei Z, Song C, Ran J, Cao Z, Cai Y, Han W. Novel semiconducting nano-agents incorporating tirapazamine for imaging guided synergistic cancer hypoxia activated photo-chemotherapy. J Mater Chem B 2021; 9:5318-5328. [PMID: 34231629 DOI: 10.1039/d1tb00659b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
For cancer treatment, the traditional monotherapy has the problems of low drug utilization rate, poor efficacy and easy recurrence of the cancer. Herein, nanoparticles (NPs) based on a novel semiconducting molecule (ITTC) are developed with excellent photostability, high photothermal conversion efficiency and good 1O2 generation ability. The chemotherapy of the hypoxia-activated prodrug tirapazamine (TPZ) was improved accordingly after oxygen consumption by the photodynamic therapy of ITTC NPs. Additionally, the metabolic process of ITTC NPs in vivo could be monitored in real time for fluorescence imaging guided phototherapy, which presented great passive targeting ability to the tumor site. Remarkably, both in vitro and in vivo experiments demonstrated that the combination of ITTC NPs and TPZ presented excellent synergistic tumor ablation through photothermal therapy, photodynamic therapy and hypoxia-activated chemotherapy with great potential for clinical applications in the future.
Collapse
Affiliation(s)
- Guorong Zhang
- Department of Orthodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China and Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
| | - Weixiang Wang
- Fourth Clinical Division, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China and Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
| | - Huihui Zou
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China. and Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
| | - Zheng Wei
- Pediatric Dentistry, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China and Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
| | - Chuanhui Song
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China. and Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
| | - Jianchuan Ran
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China. and Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
| | - Zichen Cao
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China. and Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
| | - Yu Cai
- Clinical Research Institute, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, No. 158 Shangtang Road, Hangzhou 310014, Zhejiang Province, China.
| | - Wei Han
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China. and Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, 30 Zhongyang Road, 210008, Nanjing, China
| |
Collapse
|
16
|
Abstract
Background Salivary duct carcinoma (SDC) is a rare malignancy with high risk of local recurrence and distant metastases of the salivary gland. This study was designed to summarize the clinical and pathological features and to further evaluate them as potential prognostic factors for SDC in the salivary gland. Methods Clinical data of 266 patients diagnosed with SDC between 2004 and 2015 were collected from the Surveillance, Epidemiology, and End Results (SEER) database. The prognostic factors affecting overall survival (OS) and cancer-specific survival (CSS) were determined by Kaplan-Meier analyses and Cox proportional hazards model. The nomogram was established to predict OS and CSS for SDC. The predictive accuracy of the nomograms was measured by concordance index (C-index). Results The 3- and 5-year OS of SDC patients were 67.41% and 47.86%, while the 3- and 5-year CSS were 84.6% and 60.7%, respectively. The primary site, T stage and M stage were identified as independent prognostic factors for OS by the multivariate analysis, whereas N stage, M stage, the presence of multiple primary carcinomas and the treatment modalities were identified as independent prognostic factors for CSS. The C-index values of the prognostic nomogram based the risk factors affecting SDC OS and CSS were 0.703 (0.646–0.760) and 0.771 (0.691–0.851), respectively. Conclusions SDC is an aggressive malignancy with a high proportion of advanced stage and lymph node metastases. Patients with increasing age, submandibular gland malignancy, advanced T stage, advanced N stage, advanced M stage, high lymph node ratio (LNR) and the presence of multiple primary carcinomas tend to have unfavorable outcomes. Radiotherapy or chemotherapy improve CSS remarkably. These factors will aid in effective therapeutic treatment modalities for SDC.
Collapse
Affiliation(s)
- Jianchuan Ran
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China.,Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | - Huihui Zou
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China.,Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | - Xiaoye Li
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China.,Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | - Feng Guo
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China.,Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | - Wenguang Xu
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China.,Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | - Wei Han
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China.,Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| |
Collapse
|
17
|
Yang Y, BI N, Ran J, Wang D, Wang L. Intensity-Modulated Radiation Therapy May Improve Survival and Local Tumor Control in Resected Tracheo-Bronchial Adenoid Cystic Carcinoma: A Retrospective Study of 65 Cases. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1229] [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: 10/23/2022]
|
18
|
Su DW, Ran J, Zhuang ZW, Chen C, Qiao SZ, Li YD, Wang GX. Atomically dispersed Ni in cadmium-zinc sulfide quantum dots for high-performance visible-light photocatalytic hydrogen production. Sci Adv 2020; 6:eaaz8447. [PMID: 32851158 PMCID: PMC7428344 DOI: 10.1126/sciadv.aaz8447] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 07/02/2020] [Indexed: 05/21/2023]
Abstract
Catalysts with a single atom site allow highly tuning of the activity, stability, and reactivity of heterogeneous catalysts. Therefore, atomistic understanding of the pertinent mechanism is essential to simultaneously boost the intrinsic activity, site density, electron transport, and stability. Here, we report that atomically dispersed nickel (Ni) in zincblende cadmium-zinc sulfide quantum dots (ZCS QDs) delivers an efficient and durable photocatalytic performance for water splitting under sunlight. The finely tuned Ni atoms dispersed in ZCS QDs exhibit an ultrahigh photocatalytic H2 production activity of 18.87 mmol hour-1 g-1. It could be ascribed to the favorable surface engineering to achieve highly active sites of monovalent Ni(I) and the surface heterojunctions to reinforce the carrier separation owing to the suitable energy band structures, built-in electric field, and optimized surface H2 adsorption thermodynamics. This work demonstrates a synergistic regulation of the physicochemical properties of QDs for high-efficiency photocatalytic H2 production.
Collapse
Affiliation(s)
- D. W. Su
- Centre for Clean Energy Technology, School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - J. Ran
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Z. W. Zhuang
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - C. Chen
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - S. Z. Qiao
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
- Corresponding author. (G.X.W.); (S.Z.Q.); (Y.D.L.)
| | - Y. D. Li
- Department of Chemistry, Tsinghua University, Beijing 100084, China
- Corresponding author. (G.X.W.); (S.Z.Q.); (Y.D.L.)
| | - G. X. Wang
- Centre for Clean Energy Technology, School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW 2007, Australia
- Corresponding author. (G.X.W.); (S.Z.Q.); (Y.D.L.)
| |
Collapse
|
19
|
Xu L, Wu Z, He Y, Chen Z, Xu K, Yu W, Fang W, Ma C, Moqbel SAA, Ran J, Xiong Y, Wu L. MFN2 contributes to metabolic disorders and inflammation in the aging of rat chondrocytes and osteoarthritis. Osteoarthritis Cartilage 2020; 28:1079-1091. [PMID: 32416221 DOI: 10.1016/j.joca.2019.11.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 11/04/2019] [Accepted: 11/05/2019] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Metabolic disorders and inflammation of chondrocytes are major pathological changes in aging cells and osteoarthritis (OA). Recent studies demonstrated age-related mitochondrial dysfunction may be a key contributing factor in the development of OA. Mitofusin 2 (MFN2) is a key regulator of mitochondrial fusion, cell metabolism, autophagy and apoptosis. This study was performed to ascertain whether MFN2 was involved in the aging of chondrocytes and OA. METHODS Metabolic measurements were taken in rat chondrocytes between different ages (3-week, 5-month, 12-month). MFN2 activity was detected in both human and rat chondrocytes during aging and OA. Then, knockdown of MFN2 with small interfering RNA (siRNA) was performed to confirm whether MFN2 contributes to metabolic changes. Lentiviruses were used to establish MFN2-overexpression/knockdown OA models both in vivo and in vitro to confirm whether MFN2 contributes to OA progress. Further, regulatory mechanism of MFN2 was assessed and interaction between MFN2 and PARKIN was performed. RESULTS A metabolic shift to mitochondrial respiration was confirmed in rat chondrocytes during aging. MFN2 expression was elevated in both human and rat chondrocytes during aging and OA. Knockdown of MFN2 with siRNA reversed the age-related metabolic changes in rat chondrocytes. Overexpression of MFN2 exacerbated inflammation and OA progress, while knockdown of MFN2 ameliorated inflammation and OA progress. Further, MFN2 could be ubiquitinated by PARKIN, declined PARKIN expression during aging and OA might result in elevated MFN2 expression. CONCLUSIONS Elevated MFN2 contributes to metabolic changes and inflammation during aging of rat chondrocytes and osteoarthritis.
Collapse
Affiliation(s)
- L Xu
- Department of Orthopedics Surgery, The 2nd Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Z Wu
- Department of Orthopedics Surgery, The 2nd Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Y He
- Department of Orthopedics Surgery, The 2nd Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Z Chen
- Department of Orthopedics Surgery, The 2nd Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - K Xu
- Department of Orthopedics Surgery, The 2nd Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - W Yu
- Department of Orthopedics Surgery, The 2nd Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - W Fang
- Department of Orthopedics Surgery, The 2nd Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - C Ma
- Department of Orthopedics Surgery, The 2nd Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - S A A Moqbel
- Department of Orthopedics Surgery, The 2nd Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - J Ran
- Department of Orthopedics Surgery, The 2nd Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
| | - Y Xiong
- Department of Orthopedics Surgery, The 2nd Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
| | - L Wu
- Department of Orthopedics Surgery, The 2nd Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
| |
Collapse
|
20
|
Tang C, Song C, Wei Z, Liang C, Ran J, Cai Y, Dong X, Han W. Polycyclic naphthalenediimide-based nanoparticles for NIR-II fluorescence imaging guided phototherapy. Sci China Chem 2020. [DOI: 10.1007/s11426-020-9723-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
21
|
Song C, Tang C, Xu W, Ran J, Wei Z, Wang Y, Zou H, Cheng W, Cai Y, Han W. Hypoxia-Targeting Multifunctional Nanoparticles for Sensitized Chemotherapy and Phototherapy in Head and Neck Squamous Cell Carcinoma. Int J Nanomedicine 2020; 15:347-361. [PMID: 32021184 PMCID: PMC6980849 DOI: 10.2147/ijn.s233294] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 01/09/2020] [Indexed: 12/17/2022] Open
Abstract
Purpose Chemotherapy in head and neck squamous cell carcinoma (HNSCC) has many systemic side effects, as well as hypoxia-induced chemoresistance. To reduce side effects and enhance chemosensitivity are urgently needed. Methods We synthesized a drug delivery system (named CECMa NPs) based on cisplatin (CDDP) and metformin (chemotherapeutic sensitizer), of which chlorin e6 (Ce6) and polyethylene glycol diamine (PEG) were synthesized as the shell, an anti-LDLR antibody (which can target to hypoxic tumor cells) was modified on the surface to achieve tumor targeting. Results The NPs possessed a great synergistic effect of chemotherapy and phototherapy. After laser stimulation, both CDDP and metformin can be released in situ to achieve anti-tumor effects. Meanwhile, PDT and PTT triggered by a laser have anticancer effects. Furthermore, compared with free cisplatin, CECMa exhibits less systemic toxicity with laser irradiation in the xenograft mouse tumor model. Conclusion CECMa effectively destroyed the tumors via hypoxia targeting multimodal therapy both in vitro and in vivo, thereby providing a novel strategy for targeting head and neck squamous cell carcinoma.
Collapse
Affiliation(s)
- Chuanhui Song
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, People's Republic of China.,Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, People's Republic of China
| | - Chuanchao Tang
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, People's Republic of China.,Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, People's Republic of China
| | - Wenguang Xu
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, People's Republic of China
| | - Jianchuan Ran
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, People's Republic of China.,Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, People's Republic of China
| | - Zheng Wei
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, People's Republic of China.,Pediatric Dentistry, Nanjing Stomatology Hospital, Medical School of Nanjing University, Nanjing 210008, People's Republic of China
| | - Yufeng Wang
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, People's Republic of China.,Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, People's Republic of China
| | - Huihui Zou
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, People's Republic of China.,Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, People's Republic of China
| | - Wei Cheng
- Department of Oral Implantology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, People's Republic of China
| | - Yu Cai
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, People's Republic of China
| | - Wei Han
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, People's Republic of China.,Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, People's Republic of China
| |
Collapse
|
22
|
Yin L, Ran J, Lian T, Yang C, Li S, Liu Y. EFFECTS OF VITAMIN E SUPPLEMENTATION ON SERUM HORMONES AND GENE EXPRESSION OF ANTI-SEASON BREEDING XINGGUO GREY GEESE (ANSER CYGNOIDES). Braz J Poult Sci 2019. [DOI: 10.1590/1806-9061-2018-0892] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- L Yin
- Sichuan Agricultural University, China
| | - J Ran
- Sichuan Agricultural University, China
| | - T Lian
- Sichuan Agricultural University, China
| | - C Yang
- Sichuan Animal Science Academy, China
| | - S Li
- Jiangxi Academy of Agricultural Science, China
| | - Y Liu
- Sichuan Agricultural University, China
| |
Collapse
|
23
|
Ran J, Ji S, Morelli JN, Wu G, Li X. T2 mapping in dermatomyositis/polymyositis and correlation with clinical parameters. Clin Radiol 2018; 73:1057.e13-1057.e18. [PMID: 30172348 DOI: 10.1016/j.crad.2018.07.106] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 07/24/2018] [Indexed: 12/24/2022]
Abstract
AIM To explore the T2-mapping signal characteristics of the thigh muscles in patients with dermatomyositis/polymyositis (DM/PM) and to investigate the correlation between thigh muscle T2 values, clinical parameters, and serum creatinine kinase (CK). MATERIALS AND METHODS Forty-two patients with DM/PM proven by diagnostic criteria were enrolled in the study along with 13 healthy control subjects. Both T2-mapping and conventional magnetic resonance imaging (MRI) images were obtained in the thigh musculature of all subjects. The T2 values of thigh muscles were compared between the DM/PM patients and control groups. Thirty-one DM/PM patients were evaluated with manual muscle testing (MMT) and serum CK levels. A Spearman correlation coefficient model was used to correlate the mean T2 values and clinical assessments. The Kruskal-Wallis test and receiver operating characteristic (ROC) curves were also utilised. p-Values <0.05 reflected statistical significance. RESULTS The T2 value of all oedematous muscles was greater on average than that of the unaffected muscles of the DM/PM patients (p<0.05) and the muscles of healthy volunteers (p<0.05). The T2 value of unaffected muscles in DM/PM patients was also greater than that of the normal muscles in healthy volunteers (p<0.05). The area under the curves (AUCs) for T2 relaxation time values was 0.72 with respective sensitivity and specificity of 72.6% and 65.4%. The mean T2 relaxation time of the 31 patients group and the MMTs (p<0.05) was correlated without serum CK levels (p>0.05). CONCLUSION T2 mapping is not only quantitatively used for subclinical muscle involvement in DM/PM, but also be used to demonstrate severity of damaged muscles in DM/PM.
Collapse
Affiliation(s)
- J Ran
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - S Ji
- Department of Neurology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - J N Morelli
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - G Wu
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - X Li
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China.
| |
Collapse
|
24
|
Ran J, Wang J, Bi N, Jiang W, Zhou Z, Hui Z, Liang J, Feng Q, Wang L. Health-Related Quality of Life in Long-Term Survivors of Unresectable Locally Advanced Non–small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1906] [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: 11/28/2022]
|
25
|
Ran J, Ditmar P, Klees R, Farahani HH. Statistically optimal estimation of Greenland Ice Sheet mass variations from GRACE monthly solutions using an improved mascon approach. J Geod 2017; 92:299-319. [PMID: 31983812 PMCID: PMC6952056 DOI: 10.1007/s00190-017-1063-5] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 08/26/2017] [Indexed: 05/23/2023]
Abstract
We present an improved mascon approach to transform monthly spherical harmonic solutions based on GRACE satellite data into mass anomaly estimates in Greenland. The GRACE-based spherical harmonic coefficients are used to synthesize gravity anomalies at satellite altitude, which are then inverted into mass anomalies per mascon. The limited spectral content of the gravity anomalies is properly accounted for by applying a low-pass filter as part of the inversion procedure to make the functional model spectrally consistent with the data. The full error covariance matrices of the monthly GRACE solutions are properly propagated using the law of covariance propagation. Using numerical experiments, we demonstrate the importance of a proper data weighting and of the spectral consistency between functional model and data. The developed methodology is applied to process real GRACE level-2 data (CSR RL05). The obtained mass anomaly estimates are integrated over five drainage systems, as well as over entire Greenland. We find that the statistically optimal data weighting reduces random noise by 35-69%, depending on the drainage system. The obtained mass anomaly time-series are de-trended to eliminate the contribution of ice discharge and are compared with de-trended surface mass balance (SMB) time-series computed with the Regional Atmospheric Climate Model (RACMO 2.3). We show that when using a statistically optimal data weighting in GRACE data processing, the discrepancies between GRACE-based estimates of SMB and modelled SMB are reduced by 24-47%.
Collapse
Affiliation(s)
- J. Ran
- Delft University of Technology, Stevinweg 1, 2628 CN Delft, The Netherlands
| | - P. Ditmar
- Delft University of Technology, Stevinweg 1, 2628 CN Delft, The Netherlands
| | - R. Klees
- Delft University of Technology, Stevinweg 1, 2628 CN Delft, The Netherlands
| | - H. H. Farahani
- Delft University of Technology, Stevinweg 1, 2628 CN Delft, The Netherlands
| |
Collapse
|
26
|
Wang X, Zhang Q, Zhang H, Gao L, Ran J, Li Q, Liu R, Wei S, Luo H, Wei X, Liu Z, Sun S, Xu L. EP-1474: The preliminarily results of carbon ion radiotherapy in 60 patients. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32724-4] [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: 11/25/2022]
|
27
|
Han TT, Ran J, Ding XP, Li LJ, Zhang LY, Zhang YP, Nie SS, Chen L. Cytogenetic and molecular analysis of infertile Chinese men: karyotypic abnormalities, Y-chromosome microdeletions, and CAG and GGN repeat polymorphisms in the androgen receptor gene. Genet Mol Res 2013; 12:2215-26. [PMID: 23884765 DOI: 10.4238/2013.july.8.3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Chromosome abnormalities, Y-chromosome microdeletions, and androgen receptor gene CAG and GGN repeat polymorphisms in infertile Chinese men featuring severe oligospermia and azoospermia were analyzed. Ninety-six fertile men and 189 non-obstructive infertile men, including 125 patients with azoospermia and 64 with severe oligozoospermia, were studied. Seventeen infertile men (9.0%) carried a chromosome abnormality. Twenty (10.6%) carried a Y-chromosome microdeletion. In the remainder of the patients and controls, GGN and CAG repeats were sequenced. Short GGN repeats (n < 23) appeared to be associated with defective spermatogenesis, with the number of GGN repeats strongly correlated with sperm counts. No significant difference in CAG repeats was found between patients and controls, nor were CAG repeats correlated with sperm counts. However, for CAG repeats ranging between 24 and 25, there was a >2.5-fold risk (OR = 2.539, 95%CI = 1.206-5.344, P < 0.05) of severe oligospermia and azoospermia. Our results confirmed the significant role of chromosome abnormalities, Y-chromosome microdeletions, and GGN repeats in Chinese male infertility.
Collapse
Affiliation(s)
- T T Han
- Key Laboratory of Bio-Resources and Eco-Environment, Institute of Medical Genetics, Ministry of Education, College of Life Science, Sichuan University, Chengdu, China.
| | | | | | | | | | | | | | | |
Collapse
|
28
|
Ran J, Han T, Ding X, Wei X, Zhang L, Zhang Y, Li T, Nie S, Chen L. Association study between Y-chromosome haplogroups and susceptibility to spermatogenic impairment in Han People from southwest China. Genet Mol Res 2013; 12:59-66. [DOI: 10.4238/2012.january.22.4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
29
|
Yan M, Zhang X, Yang N, Xu Y, Yue B, Ran J. Isolation and characterization of twelve polymorphic microsatellite loci in the buff-throated partridge (Tetraophasis szechenyii). Genetika 2011; 47:227-230. [PMID: 21513221] [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: 05/30/2023]
Abstract
Twelve polymorphic microsatellite markers were isolated from an AC-enriched genomic library of Buff-throated partridge (Tetraophasis szechenyii). The allele number of these loci ranged from three to 13 (average 7.75 per locus) in tested individuals. Polymorphism information content ranged from 0.532 to 0.882 with an average of 0.721. Average observed and expected heterozygosities were 0.559 (range from 0.240 to 0.792) and 0.772 (range from 0.621 to 0.910), respectively. These microsatellite markers will be useful for the assessment of genetic diversity, relatedness identification of family and analysis of population structure in wild buff-throated partridge.
Collapse
Affiliation(s)
- M Yan
- Sichuan Key Laboratory of Conservation Biology on Endangered Wildlife, College of Life Sciences, Sichuan University Chengdu, Sichuan 610064, PR China.
| | | | | | | | | | | |
Collapse
|
30
|
Yan M, Zhang X, Yang N, Xu Y, Yue B, Ran J. Isolation and characterization of twelve polymorphic microsatellite loci in the buff-throated partridge (Tetraophasis szechenyii). RUSS J GENET+ 2011. [DOI: 10.1134/s1022795410081022] [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: 11/23/2022]
|
31
|
Ran J, Cheng H, Li F, Liu S, Xiao H, Chen M, Huang X. [Estimation of insulin secretion rate in multiple sampled intravenous glucose tolerance test]. Zhonghua Nei Ke Za Zhi 2001; 40:89-92. [PMID: 11798560] [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: 02/23/2023]
Abstract
OBJECTIVE To measure and calculate insulin secretion rate(ISR) in multiple sampled intravenous glucose tolerance test (FSIVGTT) according to the two compartment model and standard parameters of the kinetics of connecting peptide (C-P) in vivo. METHODS 15 subjects with normal glucose tolerance and 11 type 2 diabetic patients took part in the study. Oral glucose tolerance test (OGTT) and FSIVGTT were performed. Glucose concentrations were measured by hexokinase method. Insulin (INS) and C-P concentrations were measured by radioimmunoassay. A computer procedure devised by our laboratory was used to calculate the value of ISR at each time point. RESULTS In the control group, serum INS and C-P concentrations reached the peak at 4 min, the second peak was not obvious. In type 2 diabetes, only 5 subjects had a small peak within 4 min, two curves reached its peak between 60 and 80 min. In the control group, ISR reached its peak 2 min after injection of glucose, that was earlier than INS and C-P curves in time sequence (P = 0.000), the second obvious peak was shown at 22 min. In type 2 diabetes, an obvious but small peak of ISR was shown at 2 min and all the patients had this peak. CONCLUSIONS It is necessary to take the process of metabolic clearance of INS and C-P into consideration, when blood concentration of INS and C-P were used as indexes to evaluate the secretion function of beta-cells. The ISR profile is more sensitive for investigation of the second phase of insulin secretion in the control group and the first phase in type 2 diabetes group.
Collapse
Affiliation(s)
- J Ran
- Endocrinology Department, Memorial Hospital, Sun Yat-Sen University of Medical Sciences, Guangzhou 510120, China
| | | | | | | | | | | | | |
Collapse
|
32
|
Yang M, Zheng C, Ran J, Zhang W, Li Z. [Studies on properties of biofriction and wear for friction pairs of UHMWPE and Ti matrix-TiN-TiC gradient film materials]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 2000; 17:1-4. [PMID: 10879179] [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: 02/16/2023]
Abstract
In order to search the possible application of friction pairs of UHMWPE and Ti6Al4V-TiN-TiC etc. gradient materials to total hip joint replacements, we have prepared Ti6Al4V-TiN-TiC etc. gradient film materials by using N ion implant, d. c plasma CVD(PCVD). The properties of biological friction and wear for friction pairs of HUMWPE and Ti6Al4V-TiN-TiC etc. gradient film materials were investigated. The friction coefficient of friction paris and the wear loss of worn UHMWPE were measured; the surface morphology was observed by SEM. It has been shown that in human serum lubrication the wear loss of HUMWPE decreases with the increase in the surface hardness of its pairing ceramic film material. The pairing Ti6Al4V-TiN-TiC gradient film material possesses highest surface hardness, compared with other materials studied; UHMWPE wear loss in lowest. The wear mechanism of studied pairs has been analysed as well in the present paper.
Collapse
Affiliation(s)
- M Yang
- Sichuan University, Chengdu
| | | | | | | | | |
Collapse
|
33
|
Ran J, Cheng H, Li F. [Primary study on characteristics of insulin secretion rate, metabolic clearance rate and sensitivity in non-insulin-dependent diabetic subjects from multiplex diabetic pedigrees]. Zhonghua Yi Xue Za Zhi 2000; 80:38-41. [PMID: 11798736] [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: 02/23/2023]
Abstract
OBJECTIVE To investigate the characteristics of insulin secretion rate (ISR), metabolic clearance rate (MCR-I) and sensitivity and to explore their relationship with obesity in non-insulin-dependent diabetic subjects from multiplex diabetic pedigrees (MDP). METHODS Fifteen subjects with normal glucose tolerance and 11 non-insulin-dependent diabetic patients from MDP were included in the study. Frequently sampled intravenous glucose tolerance test (FSIVGTT) was performed. Glucose, insulin (INS) and connecting-peptide (C-P) concentrations were measured. A computer procedure devised by our laboratory was used to calculate the value of ISR at each time point, then MCR-I was acquired. Insulin sensitivity index (SI) was calculated according to minimal model technique about glucose in FSIVGTT. RESULTS The ISR curve in control group was biphasic, while in non-insulin. In non-insulin-dependent diabetic group, areas under the curves of C-P (AUCC) and ISR level (AUCS) measured during 0 approximately 16 min were 7.9 nmol.min(-1).L(-1) +/- 2.8 nmol.min(-1).L(-1), and 6.1 nmol +/- 2.2 nmol, respectively, which were significantly lower than those in control group 17.7 nmol.min(-1).L(-1) +/- 4.92 nmol.min(-1).L(-1) and 12.3 nmol +/- 3.9 nmol (P < 0.01). The two parameters were slightly higher than those in control group 155 nmol.min(-1).L(-1) +/- 44 nmol.min(-1).L(-1) vs 101 nmol.min(-1).L(-1) +/- 30 nmol.min(-1).L(-1) and 76 nmol +/- 26 nmol vs 54 nmol +/- 20.0 nmol (P < 0.05)measured during 16 approximately 180 min. There was no significant difference, between the two groups about the amount of insulin secretion during 3 hours (82 nmol +/- 28nmol vs 68 nmol +/- 21 nmol, P = 0.2). In control group, there were significant positive correlation, between AUCS, waist-hip ratio (WHR), and body surface area, (BSA) and significant negative correlation between MCR-I, SI and WHR, BSA (P < 0.01), and also between MCR-I and SI. In non-insulin-dependent diabetic group, AUCS were significantly correlated with body mass index (BMI) (P < 0.01), and MCR-I had significant negative correlation with AUCC (P < 0.01). CONCLUSIONS There are obvious impaired first phase insulin secretion after glucose challenge in non-insulin-dependent diabetic subjects from MDP. Decrease in endogenous MCR-I might be an important factor to hyperinsulinemia and insulin resistance. Increased insulin secretion, decreased MCR-I and insulin sensitivity can be observed in abdominal obese subjects of control group.
Collapse
Affiliation(s)
- J Ran
- Endocrinology Department, Memorial Hospital, Sun Yat-Sen University of Medical Sciences, Guangzhou 510120, China
| | | | | |
Collapse
|
34
|
Wan C, Duan Y, Zhang E, Wu G, Ran J, Huang Y, Yue Y. [Modification of the surface of prosthetic valve material by LGDP for protection against microbial adhesion]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 1999; 16:411-4. [PMID: 12552712] [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: 02/28/2023]
Abstract
This study aimed at the surface modification of prosthetic valve materials by means of cold glow discharge plasma. Orthogonal design was adopted to select the optimal scheme by the experiments of the singular factor, such as output power, gas flow rate, treatment time etc. The PEG-200 was introducted to the surface. Grafting a layer of heparin onto the surface; coating a layer of PEG-like onto the surface first, and then the grafting heparin. Comparing the adhesive amounts of staphylococcus epidermidis (SE), the adhesive curves for Dacron, which was treated by the above methods; the last one is the best.
Collapse
Affiliation(s)
- C Wan
- Sichuan Univ, Chengdu 610065
| | | | | | | | | | | | | |
Collapse
|
35
|
Wang T, Zheng C, Li D, Ran J, Zheng Y. [Self-organization neural network based ultrasonic heart image segmentation]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 1998; 15:397-9, 405. [PMID: 12552788] [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: 02/28/2023]
Abstract
Segmentation is one of the most difficult problems in multidimensional reconstruction of ultrasonic heart image. In the present paper, a segmentation method of ultrasonic heart image using the self-organization neural network has been studied. This is an unsupervised segmentation method, which can segment images through clustering automatically. The results show that the present method has significant benefits over the traditional K-means algorithm.
Collapse
Affiliation(s)
- T Wang
- High Technology Research Institute, Sichuan Union University, Chengdu 610065
| | | | | | | | | |
Collapse
|
36
|
Okada K, Shinkai M, Fujiwara Y, Nasu M, Ran J, Miyamoto K, Nishiuchi M, Shomura T. [Surgical methods for mitral valve reflux due to valvular prolapse and comparative evaluation of the follow-up results]. Nihon Kyobu Geka Gakkai Zasshi 1997; 45:410-2. [PMID: 9235362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
37
|
Wang C, Zheng C, Ran J. [Materials for joint replacement and friction and wear]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 1997; 14:64-7. [PMID: 9817671] [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: 02/09/2023]
Abstract
Debilitating diseases such as osteo- and rheumatoid arthritis, trauma and bone cancer can be treated by using prostheses. The wear resistance of materials for joint replacement can affect the service-quality and service-life of prostheses. Materials for joint replacement and friction and wear were briefly reviewed in this paper.
Collapse
Affiliation(s)
- C Wang
- Department of Inorganic Material, Sichuan Union University, Chengdu
| | | | | |
Collapse
|
38
|
Ran J, Sherry AD. NMR determination of crystal field parameters and electron-spin correlation times for the LnDOTP5- complexes. J Magn Reson B 1996; 111:178-82. [PMID: 8661277 DOI: 10.1006/jmrb.1996.0078] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- J Ran
- Department of Chemistry, University of Texas at Dallas, Richardson 75083-0688, USA
| | | |
Collapse
|
39
|
Li X, Ran J, Rao H. [Megaloblastic changes in cervical epithelium associated with oral contraceptives and changes after treatment with folic acid]. Zhonghua Fu Chan Ke Za Zhi 1995; 30:410-3. [PMID: 7587577] [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: 01/26/2023]
Abstract
OBJECTIVE To study the influence of oral contraceptives on cervical epithelium, serum and red blood cell folate levels of users and to observe the changes after treatment with folic acid. METHODS Morphology of cervical epithelium, serum folate and red blood cell folate levels were studied in 101 women who had used oral contraceptives for over 6 months and 33 intrauterine devices users served as controls, 29 women using oral contraceptives with cervical megaloblastic changes were treated with folic acid (5mg daily) for 3-4 weeks and followed up for observation on morphological changes of cervical epithelium. RESULTS The mean nuclear diameter of cervical epithelial cells was larger in the oral contraceptive group than that in the control group (P < 0.001). Megaloblastic changes in cervical epithelium occurred in 29 women in the oral contraceptive group (28.7%). There was significant difference in the occurrence of cervical megaloblastic changes between the two groups (P < 0.01). The level of red blood cell folate was lower in the oral contraceptive group than that in the control group (P < 0.05). There was no difference in serum folate, hemoglobin and neutrophil nuclear index between the two groups (P > 0.05). The mean nuclear diameter of cervical epithelial cells decreased significantly (P < 0.001) and multinuclear and vacuolar changes disappeared after folic acid therapy in 26 women with megaloblastic changes. CONCLUSIONS Oral contraceptives reduced folate storage in the body and resulted in megaloblastic changes in cervical epithelium. This condition was improved with folic acid therapy.
Collapse
Affiliation(s)
- X Li
- Second Affiliated Hospital of Shanxi Medical College, Taiyuan
| | | | | |
Collapse
|