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Zhang R, Yan D, Zou T, Xu J, Li L, Hu L, Yang J. Dense Amorphous Passivation Layer Formed on Aluminum Alloy Surfaces by Femtosecond Laser-Assisted Oxygen-Rich Doping. Langmuir 2024; 40:8133-8143. [PMID: 38568837 DOI: 10.1021/acs.langmuir.4c00195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
Aluminum (Al) alloy surfaces are prone to serious corrosion in humid and salt-laden environments, which promotes the development of numerous protective approaches. Although the amorphous state is more conducive to improve corrosion resistance compared with the crystalline state, it still faces coating design problems like insufficient adhesive strength and flaking-off tendency. Here, we propose a strategy of femtosecond laser-assisted oxygen-rich doping to in situ create a dense high-quality passivation layer on Al alloy surfaces. With respect to the femtosecond laser processing in traditional air ambience, the material surface modifications within the oxygen-rich environment demonstrate some distinctiveness. For the ridge area of the laser ablation grooves, the oxidation surface is separated into two layers: the outer region presents a loose and porous appearance similar to the observations in the air ambience, while the inner region exhibits complete and homogeneous oxidation, especially associated with the continuous distribution of the amorphous substance, in sharp contrast to the nanoscale discrete amorphous formation in the air case. Simultaneously, the high degree of material oxidization with the amorphous phase is also developed on the wallside area of the groove valleys, which is much different from the incomplete oxidation in the air ambience. As a result, the measured corrosion current decreases by 49 times to a value of Icorr = 1.19 × 10-10 A/cm2 relative to the laser treatment in the air environment. Such a method offers the prospect for elevating the anticorrosion performance of metal surfaces.
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Affiliation(s)
- Ruizhi Zhang
- GPL Photonics Laboratory, State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun130033, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dandan Yan
- GPL Photonics Laboratory, State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun130033, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tingting Zou
- GPL Photonics Laboratory, State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun130033, China
| | - Jiapei Xu
- GPL Photonics Laboratory, State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun130033, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lin Li
- GPL Photonics Laboratory, State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun130033, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Longjin Hu
- GPL Photonics Laboratory, State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun130033, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianjun Yang
- GPL Photonics Laboratory, State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun130033, China
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Ding Z, Wang X, Zou T, Hao X, Zhang Q, Sun B, Du W. Climate warming has divergent physiological impacts on sympatric lizards. Sci Total Environ 2024; 912:168992. [PMID: 38052387 DOI: 10.1016/j.scitotenv.2023.168992] [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] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 11/08/2023] [Accepted: 11/27/2023] [Indexed: 12/07/2023]
Abstract
Climate warming is expected to affect the vulnerability of sympatric species differentially due to their divergent traits, but the underlying physiological mechanisms of those impacts are poorly understood. We conducted field warming experiments (present climate vs. warm climate) using open-top chambers to determine the effects of climate warming on active body temperature, oxidative damage, immune competence, growth and survival in two sympatric desert-dwelling lizards, Eremias multiocellata and Eremias argus from May 2019 to September 2020. Our climate warming treatment did not affect survival of the two species, but it did increase active body temperatures and growth rate in E. multiocellata compared to E. argus. Climate warming also induced greater oxidative damage (higher malondialdehyde content and catalase activity) in E. multiocellata, but not in E. argus. Further, climate warming increased immune competence in E. multiocellata, but decreased immune competence in E. argus, with regards to white blood cell counts, bacteria killing ability and relative expression of immunoglobulin M. Our results suggest that climate warming enhances body temperature, and thereby oxidative stress, immune competence and growth in E. multiocellata, but decreases immune competence of E. argus, perhaps as a cost of thermoregulation to maintain body temperatures under climate warming. The divergent physiological effects of climate warming on sympatric species may have profound ecological consequences if it eventually leads to changes in reproductive activities, population dynamics and community structure. Our study highlights the importance of considering interspecific differences in physiological traits when we evaluate the impact of climate warming on organisms, even for those closely-related species coexisting within the same geographical area.
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Affiliation(s)
- Zihan Ding
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Science, Beijing 100049, China
| | - Xifeng Wang
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Tingting Zou
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Science, Beijing 100049, China
| | - Xin Hao
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Science, Beijing 100049, China
| | - Qiong Zhang
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Baojun Sun
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
| | - Weiguo Du
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.
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Zou T, Wu Y, Lan F, Chen P, Ma L, Lei L, Zhang J. Comparison of Survival Outcomes between Adults and Pediatrics with Non-Metastatic Head and Neck Rhabdomyosarcoma: A SEER Database Analysis of 550 Patients. Int J Radiat Oncol Biol Phys 2023; 117:e361. [PMID: 37785242 DOI: 10.1016/j.ijrobp.2023.06.2449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Despite the long-term survival rate for children with head and neck rhabdomyosarcoma (HNRMS) has improved to over 70-80% due to advancements in therapeutic approaches, the survival outcomes for adult HNRMS have not been thoroughly investigated. Our study aims to compare and analyze the survival outcomes of adult and pediatric patients with non-metastatic HNRMS, with a focus on the effect of different local treatment methods on disease outcomes. MATERIALS/METHODS We conducted a retrospective analysis of data from the Surveillance, Epidemiology, and End Results (SEER) database covering the period from 2004 to 2018. Our study population consisted of patients with Head and Neck Rhabdomyosarcoma (HNRMS) who had not developed distant metastases and received at least one local treatment, either radiotherapy or surgery. The comparison of overall survival (OS) and cancer-specific survival (CSS) was performed between the adult and pediatric patient groups, and between patients who received surgery (with or without radiotherapy) and those who received radiotherapy only (non-surgery). RESULTS In the study of 550 patients diagnosed with Head and Neck Rhabdomyosarcoma (HNRMS), data was collected from 181 (32.9%) adult and 369 (67.1%) pediatric patients. The results showed that the adult patient group had a significantly worse outcome compared to the pediatric group in terms of 5-year overall survival (OS) rate (34.9% vs 81.6%, P<0.001) and 5-year cancer specific survival (CSS) rate (59.96% vs 87.48%, P<0.001). Of these patients, 308(56%) underwent radical surgery, with 228 (41.5%) receiving a combination of radiation and surgery and the remaining 242 (44%) receiving radiation therapy alone. No significant differences were found in 5-year OS and CSS rates between the surgery and non-surgery (radiation only) groups in adult patients (34.9% vs 35.0%, P = 0.900; 60.2% vs 59.6%, P = 0.988). However, there were slight differences observed in the pediatric patient group, with the 5-year OS and CSS rates being higher for the surgery group compared to the non-surgery group (86.9% vs 75.9%, P = 0.001 and 90.6% vs 84.2%, P = 0.054, respectively). CONCLUSION The results of this cohort study indicate that age plays a crucial role in predicting survival outcomes in patients diagnosed with Head and Neck Rhabdomyosarcoma (HNRMS). The findings highlight the need for age-specific treatment strategies for HNRMS patients. While the data suggests that radiotherapy may be a viable first-line option for non-metastatic adult HNRMS patients, additional research is required to validate these trends.
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Affiliation(s)
- T Zou
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
| | - Y Wu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - F Lan
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, Guangdong, China
| | - P Chen
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
| | - L Ma
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
| | - L Lei
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
| | - J Zhang
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China; Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Lan F, Ma L, Chen P, Lei L, Zou T, Zhang J, Jin J. Prospective Efficacy of Two Cycles Toripalimab Plus Induction Chemotherapy in T4 or N3 Locoregionally Advanced Nasopharyngeal Carcinoma: A Retrospective and Mechanistic Study. Int J Radiat Oncol Biol Phys 2023; 117:S70. [PMID: 37784558 DOI: 10.1016/j.ijrobp.2023.06.377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Gemcitabine-cisplatin (GP) as the most commonly used induction chemotherapy is the standard first-line systemic treatment for advanced nasopharyngeal carcinoma. However, the toxicity of three cycles induction chemotherapy following on chemoradiotherapy remains a pertinent issue. Additional monoclonal antibody against human programmed death-1 (PD-1) has shown promising efficacy in recurrent or metastatic nasopharyngeal carcinoma. MATERIALS/METHODS In this study, we compared three cycles of gemcitabine and cisplatin as classical induction chemotherapy with two cycles of induction chemotherapy plus toripalimab, and then both groups treated with the similar concurrent chemoradiotherapy. Patients with locoregionally advanced nasopharyngeal carcinoma staging T4 or N3 were randomly assigned in a 1:1 ratio to receive gemcitabine (at a dose of 1 g per square meter of body-surface area on days 1 and 8) plus cisplatin (80 mg per square meter on day 1-3), administered every 3 weeks for three cycles, or GP combined with toripalimab (at a dose of 240mg) for two cycles. The primary end point was recurrence-free survival (i.e., freedom from disease recurrence [distant metastasis or locoregional recurrence] or death from any cause) in the intention-to-treat population. Secondary end points included overall survival, treatment adherence, and safety. RESULTS A total of 60 patients were included in the trial (30 patients in the toripalimab combined induction chemotherapy group and another 30 in the standard-therapy group). Among 60 patients evaluable for response assessment after induction therapy, all patients had overall response in combined group, including 10 patients (30%) with complete response (CR) in the primary tumor site. 21 patients (70%) were evaluated as partial response (PR) in the standard induction chemotherapy, and another 9 patients were assessed as SDa. At a median follow-up of 27.6 months, the 6-months, 1-, 2-year recurrence-free survival was 100% vs 86.7%, 100% vs 80%, 93% vs 70% in the toripalimab combined induction chemotherapy group and standard-therapy group (stratified hazard ratio for recurrence or death, 0.62; 95% confidence interval [CI], 0.38 to 0.87; P = 0.001). Overall survival at 2 years was 93.3% and 100%, respectively (stratified hazard ratio for death, 0.53; 95% CI, 0.29 to 0.79). The incidence of acute adverse events of grade 3 or 4 was 76.8% in the standard-induction chemotherapy group and 56% in the standard-therapy group, with a higher incidence of neutropenia, thrombocytopenia, anemia, nausea, and vomiting in the induction chemotherapy group. The incidence of grade 3 or 4 late toxic effects was 10.2% in the induction chemotherapy group and 10.4% in the combined-therapy group. CONCLUSION Two cycles of toripalimab combined with induction chemotherapy of and CCRT shows excellent distant metastatic control with acceptable safety, which is a new promising and effective systemic therapy regimen for high-risk of metastatic NPC patients.
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Affiliation(s)
- F Lan
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, Guangdong, China
| | - L Ma
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
| | - P Chen
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
| | - L Lei
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
| | - T Zou
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
| | - J Zhang
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China; Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Jin
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, CAMS and PUMC, Shenzhen, China
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Ma L, Xiang X, Lan F, Chen P, Lei L, Zou T, Wu R, Zhang J. Combining Radiotherapy with Chemotherapy and Immunotherapy as First-Line Treatment for De Novo Metastatic Nasopharyngeal Carcinoma: A Dual-Center Retrospective Analysis. Int J Radiat Oncol Biol Phys 2023; 117:e603-e604. [PMID: 37785819 DOI: 10.1016/j.ijrobp.2023.06.1970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Local regional radiotherapy combined with systemic chemotherapy significantly improves the prognosis of patients with metastatic nasopharyngeal carcinoma (NPC). Immunochemotherapy has become the first-line treatment for initial metastatic NPC. This study evaluated the safety and efficacy of local regional radiotherapy combined with immunochemotherapy as the first-line treatment of metastatic NPC. MATERIALS/METHODS Patients with histologically proven de novo metastatic NPC who received immunotherapy and chemotherapy followed by local-regional radiotherapy were included from 2 cancer centers. Toxicity and treatment response were assessed using CTCAE 5.0 and RECIST 1.1, respectively. Overall survival (OS) and progression free survival (PFS) were analyzed using the Kaplan-Meier method. RESULTS From 2019 to 2021, a total of 16 patients were retrospectively analyzed. The median age was 44.5-year-old (range 16-76). Patients with ≥3 metastatic lesions accounts for 58.8%. Bone metastasis was the most common metastatic site. The chemotherapy regimens were paclitaxel/gemcitabine and cisplatin. Toripalimab, camrelizumab and sintilimab were used for immunotherapy. All patients completed the local regional radiotherapy with 69.96Gy for primary nasopharyngeal tumor and positive lymph nodes, 60.06Gy for high-risk region and 50ཞ54.45Gy for low-risk region. Seven patients underwent radiotherapy for metastatic lesions. The median follow-up was 20.5 months (range 6-38 months). Two-year OS was 100%. Three patients experienced distant progression. One-year and 2-year PFS rate was 93.8% and 76.7%, respectively. After combination of chemotherapy and immunotherapy, the overall response rate (ORR) was 93.7% with a complete response (CR) of 6.3%. At the end of radiotherapy, the ORR was 100%. Nine patients (56.3%) achieved CR. Radiotherapy related acute severe (grade 3 or higher) toxicity was dermatitis (1/16, 6.3%) and mucositis (2/16, 12.5%). Immunotherapy related hypophysitis and capillary hyperplasia was 6.3% and 6.3%, respectively. No long-term toxicity was observed. CONCLUSION Loco-regional radiotherapy provided a promising efficacy with modest toxicity for patients with metastatic nasopharyngeal carcinoma who received immunochemotherapy.
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Affiliation(s)
- L Ma
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
| | - X Xiang
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
| | - F Lan
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, Guangdong, China
| | - P Chen
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
| | - L Lei
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
| | - T Zou
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
| | - R Wu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Zhang
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
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Blostein F, Zou T, Bhaumik D, Salzman E, Bakulski K, Shaffer J, Marazita M, Foxman B. Bacterial Community Modifies Host Genetics Effect on Early Childhood Caries. J Dent Res 2023; 102:1098-1105. [PMID: 37395259 PMCID: PMC10552462 DOI: 10.1177/00220345231175356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2023] Open
Abstract
By age 5, approximately one-fifth of children have early childhood caries (ECC). Both the oral microbiome and host genetics are thought to influence susceptibility. Whether the oral microbiome modifies genetic susceptibility to ECC has not been tested. We test whether the salivary bacteriome modifies the association of a polygenic score (PGS, a score derived from genomic data that summarizes genetic susceptibility to disease) for primary tooth decay on ECC in the Center for Oral Health Research in Appalachia 2 longitudinal birth cohort. Children were genotyped using the Illumina Multi-Ethnic Genotyping Array and underwent annual dental examinations. We constructed a PGS for primary tooth decay using weights from an independent, genome-wide association meta-analysis. Using Poisson regression, we tested for associations between the PGS (high versus low) and ECC incidence, adjusting for demographic characteristics (n = 783). An incidence-density sampled subset of the cohort (n = 138) had salivary bacteriome data at 24 mo of age. We tested for effect modification of the PGS on ECC case status by salivary bacterial community state type (CST). By 60 mo, 20.69% of children had ECC. High PGS was not associated with an increased rate of ECC (incidence rate ratio, 1.09; 95% confidence interval [CI], 0.83-1.42). However, having a cariogenic salivary bacterial CST at 24 mo was associated with ECC (odds ratio [OR], 7.48; 95% CI, 3.06-18.26), which was robust to PGS adjustment. An interaction existed between the salivary bacterial CST and the PGS on the multiplicative scale (P = 0.04). The PGS was associated with ECC (OR, 4.83; 95% CI, 1.29-18.17) only among individuals with a noncariogenic salivary bacterial CST (n = 70). Genetic causes of caries may be harder to detect when not accounting for cariogenic oral microbiomes. As certain salivary bacterial CSTs increased ECC risk across genetic risk strata, preventing colonization of cariogenic microbiomes would be universally beneficial.
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Affiliation(s)
- F. Blostein
- Department of Epidemiology, University of Michigan School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - T. Zou
- Department of Human Genetics, School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - D. Bhaumik
- Department of Epidemiology, University of Michigan School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - E. Salzman
- Department of Epidemiology, University of Michigan School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - K.M. Bakulski
- Department of Epidemiology, University of Michigan School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - J.R. Shaffer
- Department of Oral and Craniofacial Sciences, Center for Craniofacial and Dental Genetics, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Human Genetics, School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - M.L. Marazita
- Department of Oral and Craniofacial Sciences, Center for Craniofacial and Dental Genetics, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Human Genetics, School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
- Clinical and Translational Sciences Institute, and Department of Psychiatry, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - B. Foxman
- Department of Epidemiology, University of Michigan School of Public Health, University of Michigan, Ann Arbor, MI, USA
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Ran M, Huang J, Qian W, Zou T, Ji C. EMD-based gray combined forecasting model - Application to long-term forecasting of wind power generation. Heliyon 2023; 9:e18053. [PMID: 37496909 PMCID: PMC10366421 DOI: 10.1016/j.heliyon.2023.e18053] [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: 05/11/2023] [Revised: 07/05/2023] [Accepted: 07/05/2023] [Indexed: 07/28/2023] Open
Abstract
Wind power is the most promising renewable energy source after hydropower because of its mature technology and low price, and has great potential for carbon emission reduction. Long-term forecasts of its power generation can help power companies to develop operational plans, grid configuration and power dispatch, and can also provide a basis for the government to formulate energy and environmental policies. However, due to the characteristics of China's monsoon climate and wind power industry development, wind power generation data are characterized by nonlinear cycles and small data volume, which makes accurate prediction more difficult. To this end, this paper develops a new prediction model and applies it to the long-term prediction of wind power generation in China, and proposes some targeted policy recommendations based on the prediction results to promote the development of China's wind power industry.
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Fukuda H, Zou T, Fujii S, Sato S, Wakahara D, Higashi S, Tseng TY, Chang TC, Yada N, Matsuo K, Habu M, Tominaga K, Takeuchi H, Takenaka S. Cyclic anthraquinone derivatives, unique G-quadruplex binders, selectively induce cancer cell apoptosis and inhibit tumor growth. PNAS Nexus 2023; 2:pgad211. [PMID: 37416876 PMCID: PMC10319625 DOI: 10.1093/pnasnexus/pgad211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/23/2023] [Accepted: 06/14/2023] [Indexed: 07/08/2023]
Abstract
Cyclic anthraquinone derivatives (cAQs), which link two side chains of 1,5-disubstituted anthraquinone as a threading DNA intercalator, have been developed as G-quartet (G4) DNA-specific ligands. Among the cAQs, cAQ-mBen linked through the 1,3-position of benzene had the strongest affinity for G4 recognition and stabilization in vitro and was confirmed to bind to the G4 structure in vivo, selectively inhibiting cancer cell proliferation in correlation with telomerase expression levels and triggering cell apoptosis. RNA-sequencing analysis further indicated that differentially expressed genes regulated by cAQ-mBen were profiled with more potential quadruplex-forming sequences. In the treatment of the tumor-bearing mouse model, cAQ-mBen could effectively reduce tumor tissue and had less adverse effects on healthy tissue. These results suggest that cAQ-mBen can be a potential cancer therapeutic agent as a G4 binder.
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Affiliation(s)
| | | | | | | | - Daiki Wakahara
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka 804-8550, Japan
| | - Sen Higashi
- Division of Applied Pharmacology, Department of Health Promotion, Kyushu Dental University, Fukuoka 803-8580, Japan
| | - Ting-Yuan Tseng
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
| | - Ta-Chau Chang
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
| | - Naomi Yada
- Division of Oral Pathology, Department of Health Promotion, Kyushu Dental University, Fukuoka 803-8580, Japan
| | - Kou Matsuo
- Division of Oral Pathology, Department of Health Promotion, Kyushu Dental University, Fukuoka 803-8580, Japan
| | - Manabu Habu
- Division of Oral and Maxillofacial Surgery, Department of Science of Physical Functions, Kyushu Dental University, Fukuoka 803-8580, Japan
| | - Kazuhiro Tominaga
- Division of Oral and Maxillofacial Surgery, Department of Science of Physical Functions, Kyushu Dental University, Fukuoka 803-8580, Japan
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Li R, Zou T, Li X, Yu Z, Yang J. Development of periodically concentric rings within microcavity upon femtosecond laser irradiation. Opt Express 2023; 31:17836-17847. [PMID: 37381507 DOI: 10.1364/oe.486531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 04/17/2023] [Indexed: 06/30/2023]
Abstract
Understanding the formation mechanisms of the nanostructures and their designs has important implications for both the fundamental science and application prospects. In this study, we proposed a strategy for femtosecond laser-induced high regularity concentric rings within silicon microcavity. The morphology of the concentric rings can be flexibly modulated by the pre-fabricated structures and the laser parameters. The physics involved is deeply explored by the Finite-Difference-Time-Domain simulations, which reveals that the formation mechanism can be attributed to the near-field interference of the incident laser and the scattering light from the pre-fabricated structures. Our results provide a new method for creating the designable periodic surface structures.
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Quan S, Zou T, Duan L, Tian X, Wang Y, Zhu Y, Fang M, Shi Y, Wan C, Sun L, Shen A. Clinical Characteristics of Pulmonary Tuberculosis in Children Tested by Xpert MTB/RIF Ultra. Pediatr Infect Dis J 2023; 42:389-395. [PMID: 36854100 DOI: 10.1097/inf.0000000000003866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
BACKGROUND The Xpert MTB/rifampicin Ultra (Xpert Ultra) assay improves the early diagnosis of active tuberculosis (TB) in children. Clinical evaluation is paramount for the interpretation of any positive Xpert Ultra test, especially those with low quantities of DNA. METHODS In this study, 391 children with suspected TB who were tested with Xpert Ultra were enrolled. The clinical characteristics and Xpert Ultra results were further analyzed. RESULTS The sensitivity and specificity of Xpert Ultra were 45.0% (149/331) and 96.7% (58/60), respectively. Children with higher semiquantitative scales of Xpert Ultra showed higher percentages of a positive MTB culture, positive acid-fast bacilli staining, severe type of disease, fever, cough and expectoration, a higher white blood cell count and higher C-reactive protein concentrations (all P < 0.01). Among 44 children with an Xpert Ultra trace result, there were no differences in clinical characteristics between confirmed cases and unconfirmed TB cases. CONCLUSIONS The prevalence of trace is relatively high and can be considered positive in paucibacillary children. Clinical presentations are associated with bacterial load quantified by Xpert Ultra. The interpretation of Xpert Ultra trace results based on clinical information is important for the diagnosis of TB.
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Affiliation(s)
- Shuting Quan
- From the National Clinical Research Center for Respiratory Diseases, National Key Discipline of Pediatrics, Capital Medical University, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Tingting Zou
- Department of Pediatrics Infectious Diseases, West China Second Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Chengdu, China
| | - Li Duan
- Department of Pediatrics Infectious Diseases, The No. 1 People's Hospital of Liangshan Yizu Autonomous Prefecture, Liangshan, China
| | - Xue Tian
- From the National Clinical Research Center for Respiratory Diseases, National Key Discipline of Pediatrics, Capital Medical University, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Yacui Wang
- From the National Clinical Research Center for Respiratory Diseases, National Key Discipline of Pediatrics, Capital Medical University, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Yu Zhu
- Department of Pediatrics Infectious Diseases, West China Second Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Chengdu, China
| | - Min Fang
- Department of Pediatrics Infectious Diseases, The No. 1 People's Hospital of Liangshan Yizu Autonomous Prefecture, Liangshan, China
| | - Yan Shi
- Department of Pediatrics Infectious Diseases, The No. 1 People's Hospital of Liangshan Yizu Autonomous Prefecture, Liangshan, China
| | - Chaomin Wan
- Department of Pediatrics Infectious Diseases, West China Second Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Chengdu, China
| | - Lin Sun
- From the National Clinical Research Center for Respiratory Diseases, National Key Discipline of Pediatrics, Capital Medical University, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Adong Shen
- From the National Clinical Research Center for Respiratory Diseases, National Key Discipline of Pediatrics, Capital Medical University, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, China
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11
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Yin Y, Zheng S, Zou T. Central limit theorem of linear spectral statistics of high-dimensional sample correlation matrices. BERNOULLI 2023. [DOI: 10.3150/22-bej1487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
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12
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Li Q, Zhao T, Mao G, Feng W, Chen Y, Zou T, Yang L, Qian JY. A Se-enriched Grifola frondosa polysaccharide induces macrophage activation by TLR4-mediated MAPK signaling pathway. Int J Biol Macromol 2023; 238:124108. [PMID: 36958440 DOI: 10.1016/j.ijbiomac.2023.124108] [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: 10/20/2022] [Revised: 02/28/2023] [Accepted: 03/16/2023] [Indexed: 03/25/2023]
Abstract
Se-polysaccharide (Se-GFP-22) from Se-enriched Grifola frondosa has double and cooperative activities of polysaccharide and Se. To delineate the underlying mechanism and signaling cascade involved in immune-stimulatory property of Se-GFP-22, the production of cellular mediators and key proteins in signaling pathway was examined. Results showed that Se-GFP-22 exhibited no cytotoxic and had a high capacity to promote macrophage phagocytosis, up-regulate interleukin-2 (IL-2), tumor necrosis factor-α (TNF-α), interferon-γ (IFN-γ), and nitric oxide (NO) productions, as well as the relative messenger RNA (mRNA) expressions. In Se-GFP-22-induced macrophages, intracellular superoxide dismutase (SOD) activity was significantly increased to protect cells from oxidative injury. However, Se-GFP-22 induced macrophage activation was suppressed when the toll-like receptor 4 (TLR4) signaling pathway was blocked by a specific TLR4 inhibitor. According to the western blot analysis and the use of specific inhibitors against the mitogen-activated protein kinases (MAPK) signaling pathway, we speculated that Se-GFP-22 activated RAW264.7 macrophages through the TLR4-mediated MAPK signaling pathway. This study provides a molecular basis for the potential of Se-GFP-22 as a novel immune-stimulatory agent.
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Affiliation(s)
- Qian Li
- School of Food Science and Engineering, Yangzhou University, Huayang Xilu 196, Yangzhou, Jiangsu 225127, People's Republic of China; School of Food and Biological Engineering, Jiangsu University, Xuefu Road 301, Zhenjiang, Jiangsu 212013, People's Republic of China
| | - Ting Zhao
- School of Chemistry and Chemical Engineering, Jiangsu University, Xuefu Road 301, Zhenjiang, Jiangsu 212013, People's Republic of China
| | - Guanghua Mao
- School of the Environment, Jiangsu University, Xuefu Road 301, Zhenjiang, Jiangsu 212013, People's Republic of China
| | - Weiwei Feng
- School of the Environment, Jiangsu University, Xuefu Road 301, Zhenjiang, Jiangsu 212013, People's Republic of China
| | - Yao Chen
- School of the Environment, Jiangsu University, Xuefu Road 301, Zhenjiang, Jiangsu 212013, People's Republic of China
| | - Tingting Zou
- School of Food Science and Engineering, Yangzhou University, Huayang Xilu 196, Yangzhou, Jiangsu 225127, People's Republic of China
| | - Liuqing Yang
- School of Chemistry and Chemical Engineering, Jiangsu University, Xuefu Road 301, Zhenjiang, Jiangsu 212013, People's Republic of China.
| | - Jian-Ya Qian
- School of Food Science and Engineering, Yangzhou University, Huayang Xilu 196, Yangzhou, Jiangsu 225127, People's Republic of China.
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13
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Lin Y, Chen S, Xu C, Fan Z, Zou T, Sun D, Yang J. Femtosecond laser upgrading the quality of bismuth films to enhance ultra-broadband photodetection. Opt Express 2023; 31:9515-9525. [PMID: 37157520 DOI: 10.1364/oe.482018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Topological insulator bismuth has attracted considerable attention for the fabrication of room-temperature, wide bandwidth, and high-performance photodetectors due to the gapless edge state and insulating bulk state properties. However, both the photoelectric conversion and carrier transportation of the bismuth films are extremely affected by the surface morphology and grain boundaries to limit optoelectronic properties further. Here, we demonstrate a strategy of femtosecond laser treatment for upgrading the quality of bismuth films. After the treatment with proper laser parameters, the measurement of average surface roughness can be reduced from Ra = 44 nm to 6.9 nm, especially with accompany of the evident grain boundary elimination. Consequently, the photoresponsivity of the bismuth films increases approximately 2 times within an ultra-broad spectrum range from the visible to mid-infrared. This investigation suggests that the femtosecond laser treatment can help to benefit the performance of topological insulator ultra-broadband photodetectors.
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14
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Zhou X, Xi Q, Jia W, Li Z, Liu Z, Luo G, Xing C, Zhang D, Hou M, Liu H, Yang X, Luo Y, Peng X, Wang G, Zou T, Zhu L, Jin L, Zhang X. A novel homozygous mutation in ACTL7A leads to male infertility. Mol Genet Genomics 2023; 298:353-360. [PMID: 36574082 DOI: 10.1007/s00438-022-01985-0] [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: 09/13/2022] [Accepted: 12/15/2022] [Indexed: 12/28/2022]
Abstract
Male infertility, a global public health problem, exhibits complex pathogenic causes and genetic factors deserve further discovery and study. We identified a novel homozygous missense mutation c.224A > C (p.D75A) in ACTL7A gene in two infertile brothers with teratozoospermia by whole-exome sequencing (WES). In vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) showed fertilization failure of the two affected couples. The three-dimensional (3D) models showed that a small section of α-helix transformed into random coil in the mutant ACTL7A protein and mutant amino acid lacked a hydrogen bond with Ser170 amino acid. Immunofluorescence revealed that ACTL7A protein was degraded in sperms of patients. Transmission electron microscopy (TEM) analysis of sperms from the infertile patients showed that the irregular perinuclear theca (PT) and acrosomal ultrastructural defects. Furthermore, ACTL7A mutation caused abnormal localization and reduced the expression of PLCZ1 in sperms of the patients, which may be the key reasons for the fertilization failure after ICSI. Our findings expand the spectrum of ACTL7A mutations and provide novel theoretical basis for genetic counseling.
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Affiliation(s)
- Xiaopei Zhou
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China
| | - Qingsong Xi
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Weimin Jia
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China
| | - Zhou Li
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Zhenxing Liu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China
| | - Geng Luo
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China
| | - Chenxi Xing
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Dazhi Zhang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China
| | - Meiqi Hou
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China
| | - Huihui Liu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China
| | - Xue Yang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China
| | - Yalin Luo
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China
| | - Xuejie Peng
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China
| | - Guihua Wang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China
| | - Tingting Zou
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China
| | - Lixia Zhu
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China.
| | - Lei Jin
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China
| | - Xianqin Zhang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China.
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15
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Li X, Xie W, Wang L, Zou T. Can impoverished family nurture rich sons any more? The effect of household income on intergenerational transmission of education: Evidence from China. Front Psychol 2023; 14:1116217. [PMID: 36818137 PMCID: PMC9932921 DOI: 10.3389/fpsyg.2023.1116217] [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: 12/05/2022] [Accepted: 01/11/2023] [Indexed: 02/05/2023] Open
Abstract
Family investment in education is an important variable influencing the educational attainment of children. Family investment in education is influenced by family income, and the increase in family income gap will aggravate the inequity of education and enhance the degree of intergenerational transmission of education. But the above theories need to be further tested in reality. This paper uses the 2018 China Family Panel Studies (CFPS) to verify the role of Chinese family income on intergenerational transmission of education through the education transition matrix and the mediating effect model, and examines the effect of college expansion policy on the mediating effect of family income on intergenerational transmission of education. The results show that: (1) The education level of parents has obvious transmissibility to the education level of children. The solidification rate of intergenerational transmission of education between parents and children is 25.72%, the upward mobility rate is 60.58% and the downward mobility rate is 13.70%. (2) The mediating effect model shows that the total effect of the parents' education level on children's education level is 0.279 and the direct effect is 0.272, and the family income plays a mediating effect in the intergenerational transmission of education, and the mediating degree reaches about 2.6%. (3) The expansion of higher education provides more opportunities for children of society, especially lower-middle-income families, to receive higher education, which weakens the mediating effect of family income in the intergenerational transmission of education. The findings of this paper provide support for policymakers to increase public investment in education.
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Affiliation(s)
- Xiaofan Li
- Law and Business School, Wuhan Institute of Technology, Wuhan, China
| | - Weiwei Xie
- Research Institute for Eco-civilization, Chinese Academy of Social Sciences, Beijing, China,*Correspondence: Weiwei Xie, ; Lu Wang,
| | - Lu Wang
- Wuhan University of Engineering Science and Technology, Wuhan, China,*Correspondence: Weiwei Xie, ; Lu Wang,
| | - Tingting Zou
- Law and Business School, Wuhan Institute of Technology, Wuhan, China
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16
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Cui Y, Su X, Wang C, Xu H, Hu D, Wang J, Pei K, Sun M, Zou T. Bacterial MazF/MazE toxin-antitoxin suppresses lytic propagation of arbitrium-containing phages. Cell Rep 2022; 41:111752. [PMID: 36476854 DOI: 10.1016/j.celrep.2022.111752] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 05/18/2022] [Accepted: 11/09/2022] [Indexed: 12/12/2022] Open
Abstract
Temperate phages dynamically switch between lysis and lysogeny in their full life cycle. Some Bacillus-infecting phages utilize a quorum-sensing-like intercellular communication system, the "arbitrium," to mediate lysis-lysogeny decisions. However, whether additional factors participate in the arbitrium signaling pathway remains largely elusive. Here, we find that the arbitrium signal induces the expression of a functionally conserved operon downstream of the arbitrium module in SPbeta-like phages. SPbeta yopM and yopR (as well as phi3T phi3T_93 and phi3T_97) in the operon play roles in suppressing phage lytic propagation and promoting lysogeny, respectively. We further focus on phi3T_93 and demonstrate that it directly binds antitoxin MazE in the host MazF/MazE toxin-antitoxin (TA) module and facilitates the activation of MazF's toxicity, which is required for phage suppression. These findings show events regulated by the arbitrium system and shed light on how the interplay between phages and the host TA module affects phage-host co-survival.
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Affiliation(s)
- Yongqing Cui
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiang Su
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Chen Wang
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Han Xu
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Delei Hu
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Jing Wang
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Kai Pei
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Ming Sun
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Tingting Zou
- State Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China.
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17
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Zou T, Xi Q, Liu Z, Li Z, Hou M, Zhu L, Jin L, Zhang X. A Novel Homozygous Nonsense Mutation in ZP1 Causes Female Infertility due to Empty Follicle Syndrome. Reprod Sci 2022; 29:3516-3520. [PMID: 35773450 DOI: 10.1007/s43032-022-01024-8] [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] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 06/20/2022] [Indexed: 12/14/2022]
Abstract
ZP1 is a critical glycoprotein in the formation of the zona pellucida. It plays an indispensable role in the maturation of oocytes. To identify the causative gene of empty follicle syndrome (EFS) in a patient from a consanguineous family, whole-exome sequencing was performed in the proband. We identified a novel homozygous nonsense mutation c.1260C > G (p. Tyr420X) in the ZP1 gene from two primary infertile patients. Western blot showed that Y420X mutation in ZP1 gene produced a truncated protein. However, the mutation had no significant effect on subcellular localization of the mutant protein. Our findings confirmed the important role of the ZP1 gene in human female reproduction, enriched the mutation spectrums of ZP1 gene, and expanded its applications in the clinical and molecular diagnoses of EFS.
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Affiliation(s)
- Tingting Zou
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China
| | - Qingsong Xi
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China
| | - Zhenxing Liu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China
| | - Zhou Li
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China
| | - Meiqi Hou
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China
| | - Lixia Zhu
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China.
| | - Lei Jin
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China
| | - Xianqin Zhang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China.
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18
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Zhao M, Ma H, Hou Y, Li J, Zou T, Zhang D, Wen R, Li H, Song H. Characterization of Key Odor-Active Off-Flavor Compounds in Aged Pasteurized Yogurt by Sensory-Directed Flavor Analysis. J Agric Food Chem 2022; 70:14439-14447. [PMID: 36317964 DOI: 10.1021/acs.jafc.2c03409] [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] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The purpose of this study was to determine the key odor-active compounds contributing to the off-flavor of aged pasteurized yogurt (APY) using sensory-directed flavor analysis. Additionally, different extraction methods were compared to determine their effects on the volatile compounds, including dynamic headspace sampling (DHS), solid-phase microextraction, and stir bar sorptive extraction, and DHS was found to be suitable for this study. The results showed that comprehensive two-dimensional gas chromatography-olfactometry-mass spectrometry analysis (GC × GC-O-MS) had more advantages in separating and identifying the volatile compounds than the traditional GC-O-MS. A total of 17 odor-active compounds were determined in the fresh pasteurized yogurt and APY samples by DHS coupled with GC × GC-O-MS. The dynamic headspace dilution analysis demonstrated that 2-heptanone and hexanal were the most vital components in APY with the highest flavor dilution factor. Furthermore, the spiking and omission experimental results revealed that the odor-active compounds, such as 2-heptanone, butanoic acid, pentanoic acid, hexanal, and (E)-2-heptenal, were the key odor-active off-flavor contributors in APY. Therefore, these compounds could be used as potential indicators to determine the freshness of pasteurized yogurt.
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Affiliation(s)
- Mu Zhao
- Laboratory of Molecular Sensory Science, Beijing Technology and Business University, No. 11, Fucheng Road, Haidian District, 100048 Beijing, China
| | - Hairan Ma
- Inner Mongolia Mengniu Dairy (Group) Co., Ltd., 011500 Hohhot, China
| | - Yaqiong Hou
- Inner Mongolia Mengniu Dairy (Group) Co., Ltd., 011500 Hohhot, China
| | - Jie Li
- Laboratory of Molecular Sensory Science, Beijing Technology and Business University, No. 11, Fucheng Road, Haidian District, 100048 Beijing, China
| | - Tingting Zou
- Laboratory of Molecular Sensory Science, Beijing Technology and Business University, No. 11, Fucheng Road, Haidian District, 100048 Beijing, China
| | - Dongjie Zhang
- Inner Mongolia Mengniu Dairy (Group) Co., Ltd., 011500 Hohhot, China
| | - Rong Wen
- Inner Mongolia Mengniu Dairy (Group) Co., Ltd., 011500 Hohhot, China
| | - Hongliang Li
- Inner Mongolia Mengniu Dairy (Group) Co., Ltd., 011500 Hohhot, China
| | - Huanlu Song
- Laboratory of Molecular Sensory Science, Beijing Technology and Business University, No. 11, Fucheng Road, Haidian District, 100048 Beijing, China
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19
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Yan D, Yu Z, Zou T, Lin Y, Kong W, Yang J. Long-Time Persisting Superhydrophilicity on Sapphire Surface via Femtosecond Laser Processing with the Varnish of TiO 2. Nanomaterials (Basel) 2022; 12:nano12193403. [PMID: 36234529 PMCID: PMC9565462 DOI: 10.3390/nano12193403] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/25/2022] [Accepted: 09/26/2022] [Indexed: 05/27/2023]
Abstract
The acquiring of superhydrophilic surfaces attracts the strong interest in self-cleaning, anti-fogging and anti-icing fields based on the unique features. However, the persistent time of superhydrophilic surfaces is still facing a big challenge because of easily adsorbing hydrophobic groups. Here, we propose a strategy to achieve a superhydrophilicity persisting for an unprecedently long time on sapphire surfaces, by compounding the femtosecond laser-induced hierarchical structures and the subsequent varnish of TiO2. The superhydrophilic effect (with a contact angle of CA = 0°) created by our method can be well prolonged to at least 180 days, even for its storage in air without additional illumination of UV lights. Based on comprehensive investigations, we attribute the underlying mechanisms to the coordination of laser-induced metal ions on the material surface via TiO2 doping, which not only prevents the adsorption of the nonpolar hydrocarbon groups, but also modulates the photo-response properties of TiO2. In addition, further experiments demonstrate the excellent anti-fogging properties of our prepared samples. This investigation provides a new perspective for further enhancing the durability of superhydrophilicity surfaces.
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Affiliation(s)
- Dandan Yan
- GPL Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS), Changchun 130033, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi Yu
- GPL Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS), Changchun 130033, China
| | - Tingting Zou
- GPL Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS), Changchun 130033, China
| | - Yucai Lin
- GPL Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS), Changchun 130033, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wenchi Kong
- GPL Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS), Changchun 130033, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianjun Yang
- GPL Photonics Laboratory, State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS), Changchun 130033, China
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Guo Y, Zou T, Shan Z. Taxation strategies for the governance of digital business model—An example of China. Front Psychol 2022; 13:1013228. [PMID: 36211899 PMCID: PMC9535679 DOI: 10.3389/fpsyg.2022.1013228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 08/30/2022] [Indexed: 11/25/2022] Open
Abstract
The digital business model emerges as a new business model and gradually penetrates global industries, and countries are putting in place various digital strategies to support their development. As one of the important tools, taxation strategies are highly expected by countries, which not only describe the economic development pattern of a country but also show the digital leadership of a country. Some countries have introduced their own unilateral digital services tax to govern their digital business models, while others have looked more to the global minimum tax, resulting in the current situation of both a unilateral digital services tax and a global minimum tax. However, both of them are of great reference value for the tax governance of digital business models. This paper compares the development history of digital tax strategies, categorizes, and analyzes the design logic of existing digital tax strategies, and takes China, one of the major digital economy countries, as an example to propose China’s digital tax strategies by drawing on international experience. We set an example for the design of digital economy tax strategies for countries around the world so that they can manage digital business models more efficiently.
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Affiliation(s)
- Yi Guo
- School of International Economics and Management, Beijing Technology and Business University, Beijing, China
| | - Tingting Zou
- School of Economics, Beijing Technology and Business University, Beijing, China.
| | - Ziwei Shan
- School of International Economics and Management, Beijing Technology and Business University, Beijing, China
- *Correspondence: Ziwei Shan,
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21
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Shen D, Song H, Zou T, Raza A, Li P, Li K, Xiong J. Reduction of sodium chloride: a review. J Sci Food Agric 2022; 102:3931-3939. [PMID: 35266156 DOI: 10.1002/jsfa.11859] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 11/08/2021] [Accepted: 03/09/2022] [Indexed: 06/14/2023]
Abstract
Sodium chloride (NaCl) is an enjoyable condiment. However, evidence is accumulating to indicate that an excessive intake of Na+ in food may lead to an increased risk of cardiovascular and cerebrovascular diseases. Previous systematic reviews have focused on replacing NaCl with other metal salts (e.g. KCl). However, new salty flavor enhancers (yeast extract, taste peptides, and odor compounds) have yet to be reviewed. This systematic review evaluates the methods for, and feasibility, of NaCl reduction. It defines NaCl reduction and considers the methods used for this purpose, especially the use of flavor enhancers (yeast extract, taste peptides, and odor compounds). © 2022 Society of Chemical Industry.
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Affiliation(s)
- Dongyu Shen
- Beijing Research Center for Food Additive Engineering Technology, Laboratory of Molecular Sensory Science, Beijing Technology and Business University, Beijing, China
| | - Huanlu Song
- Beijing Research Center for Food Additive Engineering Technology, Laboratory of Molecular Sensory Science, Beijing Technology and Business University, Beijing, China
| | - Tingting Zou
- Beijing Research Center for Food Additive Engineering Technology, Laboratory of Molecular Sensory Science, Beijing Technology and Business University, Beijing, China
| | - Ali Raza
- Beijing Research Center for Food Additive Engineering Technology, Laboratory of Molecular Sensory Science, Beijing Technology and Business University, Beijing, China
| | - Pei Li
- Angel Yeast Co. Ltd., Yichang, China
| | - Ku Li
- Angel Yeast Co. Ltd., Yichang, China
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22
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Zhao M, Li T, Yang F, Cui X, Zou T, Song H, Liu Y. Characterization of key aroma-active compounds in Hanyuan Zanthoxylum bungeanum by GC-O-MS and switchable GC × GC-O-MS. Food Chem 2022; 385:132659. [DOI: 10.1016/j.foodchem.2022.132659] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 03/03/2022] [Accepted: 03/06/2022] [Indexed: 12/16/2022]
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23
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Zou T, Sato Y, Kaneyoshi S, Mano K, Yasukawa R, Nakano Y, Fujii S, Sato S, Takenaka S. Naphthalene Diimides Carrying Two β-Cyclodextrins Prefer Telomere RNA G-Quadruplex Recognition. Molecules 2022; 27:molecules27134053. [PMID: 35807292 PMCID: PMC9268153 DOI: 10.3390/molecules27134053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/20/2022] [Accepted: 06/21/2022] [Indexed: 11/16/2022] Open
Abstract
Newly synthesized naphthalene diimide carrying two β-cyclodextrins (NDI-β-CyDs) showed improved specificity for the parallel G-quadruplex structure alongside the hybrid G-quadruplex structure. Specifically, the highest binding affinity of NDI-β-CyDs for the telomere RNA G-quadruplex was observed. The binding simulation indicated that β-cyclodextrins might be available for loop nucleobase inclusion under its complex.
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Affiliation(s)
- Tingting Zou
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka 804-8550, Japan; (T.Z.); (Y.S.); (S.K.); (K.M.); (R.Y.); (Y.N.)
| | - Yuka Sato
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka 804-8550, Japan; (T.Z.); (Y.S.); (S.K.); (K.M.); (R.Y.); (Y.N.)
| | - Shuma Kaneyoshi
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka 804-8550, Japan; (T.Z.); (Y.S.); (S.K.); (K.M.); (R.Y.); (Y.N.)
| | - Kota Mano
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka 804-8550, Japan; (T.Z.); (Y.S.); (S.K.); (K.M.); (R.Y.); (Y.N.)
| | - Rui Yasukawa
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka 804-8550, Japan; (T.Z.); (Y.S.); (S.K.); (K.M.); (R.Y.); (Y.N.)
| | - Yoshifumi Nakano
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka 804-8550, Japan; (T.Z.); (Y.S.); (S.K.); (K.M.); (R.Y.); (Y.N.)
| | - Satoshi Fujii
- Department of Bioscience and Bioinformatics, Kyushu Institute of Technology, Fukuoka 820-8502, Japan;
| | - Shinobu Sato
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka 804-8550, Japan; (T.Z.); (Y.S.); (S.K.); (K.M.); (R.Y.); (Y.N.)
- Correspondence: (S.S.); (S.T.)
| | - Shigeori Takenaka
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka 804-8550, Japan; (T.Z.); (Y.S.); (S.K.); (K.M.); (R.Y.); (Y.N.)
- Correspondence: (S.S.); (S.T.)
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Zhang P, Wang X, Wei M, Wang Y, Zou T. Interaction between helium and transition metals in vanadium: A first-principles investigation. Nuclear Materials and Energy 2022. [DOI: 10.1016/j.nme.2022.101189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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25
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Li Y, Zhang X, Zou T, Mu Q, Yang J. Vivid Structural Color Macropatterns Created by Flexible Nanopainting of Ultrafast Lasers. ACS Appl Mater Interfaces 2022; 14:21758-21767. [PMID: 35500101 DOI: 10.1021/acsami.2c04542] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Structural colors based on the macro- or nanostructure formation are ubiquitous in nature, having great prospects in many fields as a result of their environmentally friendly and long-term stable characteristics compared to pigments or dyes. However, the current fabrication techniques still face challenges for the generation of high-quality structural color patterns, especially at the macroscale, in an efficient way. Here, we demonstrate a method that exploits a flexible scanning process of generating macropatterns to convert the contour profiles into well-defined sub-micrometer grating structures with unprecedented vivid structural colors, at high speed and low cost on the graphene oxide film. The nature of dynamic beam shaping of the laser line spot allows us to flexibly construct the complex patterns at high speed, in sharp contrast to the traditional point-by-point laser processing. Moreover, the multicolor display of the patterns can be carried out by simply modulating the laser polarization to change the orientation of the sub-micrometer structures, and this nanopainting strategy is further explored to flexibly design the composite image for potential anti-counterfeiting applications.
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Affiliation(s)
- Yuhang Li
- GPL Photonics Laboratory, Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS), Changchun, Jilin 130033, People's Republic of China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Xingyun Zhang
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS), Changchun, Jilin 130033, People's Republic of China
| | - Tingting Zou
- GPL Photonics Laboratory, Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS), Changchun, Jilin 130033, People's Republic of China
| | - Quanquan Mu
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS), Changchun, Jilin 130033, People's Republic of China
| | - Jianjun Yang
- GPL Photonics Laboratory, Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS), Changchun, Jilin 130033, People's Republic of China
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Cao X, Liu M, Zhao M, Li J, Xia J, Zou T, Wang Z. Synergetic PtNP@Co3O4 hollow nanopolyhedrals as peroxidase-like nanozymes for the dual-channel homogeneous biosensing of prostate-specific antigen. Anal Bioanal Chem 2022; 414:1921-1932. [DOI: 10.1007/s00216-021-03827-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/25/2021] [Accepted: 12/02/2021] [Indexed: 12/21/2022]
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Liu Z, Zhou M, Yuan C, Ni Z, Liu W, Tan Y, Zhang D, Zhou X, Zou T, Wang J, Hou M, Peng X, Zhang X. Two novel STAT1 mutations cause Mendelian susceptibility to mycobacterial disease. Biochem Biophys Res Commun 2021; 591:124-129. [PMID: 34815077 DOI: 10.1016/j.bbrc.2021.11.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/10/2021] [Indexed: 01/02/2023]
Abstract
Mendelian susceptibility to mycobacterial disease (MSMD) is a rare monogenetic disease, which is characterized by susceptibility to some weakly virulent mycobacteria. Here, we explored the pathogenic genes and molecular mechanisms of MSMD patients. We recruited three patients diagnosed with MSMD from two families. Two novel mutations (c.1228A > G, p.K410E and c.2071A > G, p.M691V) in STAT1 gene were identified from two families. The translocation of K410E mutant STAT1 protein into nucleus was not affected. The binding ability between gamma-activating sequence (GAS) and K410E mutant STAT1 protein was significantly reduced, which will reduce the interaction between STAT1 protein with the promoters of target genes. The M691V mutant STAT1 protein cannot translocate into the nucleus after IFN-γ stimulation, which will affect the STAT1 protein form gamma-activating factors (GAF) and bind the GAS in the promoter region of downstream target genes. Taken together, our results showed that the mutation of K410E led to impaired binding of STAT1 to target DNA, and the mutation of M691V prevented the transport of STAT1 into the nucleus, which led to MSMD. Together, we identified two novel mutations (c.1228A > G, p.K410E and c.2071A > G, p.M691V) in STAT1 gene in MSMD patients, and deciphered the molecular mechanism of MSMD caused by STAT1 mutations.
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Affiliation(s)
- Zhenxing Liu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Mi Zhou
- Wuhan Jinyintan Hospital, Wuhan, Hubei, China
| | - Chao Yuan
- Zhaoqing Medical College, Zhaoqing, Guangdong, China
| | - Zhengyi Ni
- Wuhan Jinyintan Hospital, Wuhan, Hubei, China
| | - Wenqiang Liu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Yang Tan
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Dazhi Zhang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Xiaopei Zhou
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Tingting Zou
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Jiarui Wang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Meiqi Hou
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Xuejie Peng
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China
| | - Xianqin Zhang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China.
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Al-Attar MM, Zou T, Fischer AH, Cosar EF. Choriocarcinoma Presenting as a Metastatic Pancreatic Mass: a Cytopathologic Diagnostic Challenge. Am J Clin Pathol 2021. [DOI: 10.1093/ajcp/aqab191.085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction/Objective
Choriocarcinoma is a malignant tumor of trophoblasts, with gestational choriocarcinoma as the most common type. It commonly presents with vaginal bleeding and uterine mass; occasionally, hemorrhage due to metastatic disease to the lung, liver, brain, and gastrointestinal tract may be the first presentation. We describe an unusual case of metastatic gestational choriocarcinoma presenting as a pancreatic head mass mimicking a pancreatic neuroendocrine tumor (PanNET). The concern for choriocarcinoma was raised by fine-needle aspiration (FNA) cytology.
Methods/Case Report
A 32-year-old woman, 16 months status-post caesarian delivery of healthy twins, presented with progressive right upper quadrant and epigastric pain, nausea, and marked elevation of Beta-hCG, lipase, ALT, and AST levels. Abdominal CT revealed a hypoenhancing 2.6 cm pancreatic head mass and multiple liver nodules, suggestive of PanNET with liver metastasis. Endoscopic ultrasound and FNA of the pancreatic mass revealed a poorly differentiated tumor composed of bizarre large malignant cells with marked cytologic atypia, focal spindle cell change, and rare multinucleated cells. By immunohistochemistry, the tumor cells were positive for pancytokeratin, CAM5.2, and CD56 (focally), while negative for synaptophysin, chromogranin, inhibin, P63 and P40. While pancreatic adenocarcinoma and PanNET couldn’t be completely ruled out, metastatic choriocarcinoma was also considered; however, inconclusive immunostaining warranted a tissue biopsy. Follow-up liver biopsy and FNA showed that tumor cells were positive for Beta-hCG and negative for SALL4, placenta lactogen, HepPar1, and TTF1 immunostains, compatible with choriocarcinoma. Molecular analysis using short tandem repeat supported a gestational origin of the tumor. The patient underwent chemotherapy with marked improvement in her status and beta-hCG levels.
Results (if a Case Study enter NA)
NA
Conclusion
Although highly aggressive, gestational choriocarcinomas show good treatment response, necessitating accurate diagnosis in cases of an atypical presentation. Choriocarcinoma presenting as metastatic pancreatic mass is extremely rare and poses a diagnostic cytopathologic and radiologic challenge that requires comprehensive correlation with clinical and laboratory data.
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Affiliation(s)
- M M Al-Attar
- Department of Pathology and Laboratory Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, UNITED STATES
| | - T Zou
- Department of Pathology and Laboratory Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, UNITED STATES
| | - A H Fischer
- Department of Pathology and Laboratory Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, UNITED STATES
| | - E F Cosar
- Department of Pathology and Laboratory Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, UNITED STATES
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Zou T, Cao S, Liu W, Li L, Jiang J, Wu L. Is simple reaction time or choice reaction time an indicator of all-cause mortality or CVD mortality? Public Health 2021; 199:34-41. [PMID: 34534888 DOI: 10.1016/j.puhe.2021.07.045] [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: 06/10/2020] [Revised: 05/20/2021] [Accepted: 07/30/2021] [Indexed: 11/16/2022]
Abstract
OBJECTIVES Simple reaction time (SRT) and choice reaction time (CRT) have been shown to be good indicators for quantitatively assessing the level of human cognitive impairment, but these parameters have also been linked to the risk of human death. This study aimed to quantitatively assess the independent predictive value of SRT or CRT for all-cause mortality or cardiovascular disease (CVD) mortality by conducting a meta-analysis of prospective studies. STUDY DESIGN The study design of this study is a prospective cohort study. METHODS We conducted a meta-analysis by combining hazard ratios (HRs) and 95% confidence intervals (95% CIs) of SRT or CRT with all-cause mortality or CVD mortality in healthy community residents aged 18 and over. Heterogeneity was evaluated by using Q statistics and Cochrane's I2 statistics. RESULTS A total of seven prospective studies that examined all-cause mortality and CVD mortality were included. The pooled HR of all-cause mortality in SRT was 1.099 (1.065-1.134, I2 = 11.9%), and an increased risk of CVD mortality was associated with lower SRT (HR = 1.186, 95% CI = 1.137-1.236; I2 = 52.4%). Similarly, the pooled HR of all-cause mortality in CRT was 1.140 (95% CI = 1.085-1.197, I2 = 33.7%). However, lower CRT was not statistically associated with an increased risk of CVD mortality. CONCLUSION SRT may be a predictor of all-cause-mortality and CVD mortality, and CRT is significantly associated with an increased risk of all-cause mortality.
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Affiliation(s)
- T Zou
- School of Public Health, Nanchang University, Nanchang, Jiangxi Province Key Laboratory of Preventive Medicine, 461 BaYi St, Nanchang, 330006, PR China; Department of Health, Jiangxi Maternal and Child Health Hospital, 318 BaYi St, Nanchang, 330006, PR China
| | - S Cao
- School of Public Health, Lanzhou University, Chengguan District, Lanzhou, Gansu Province, 730000, PR China
| | - W Liu
- School of Public Health, Nanchang University, Nanchang, Jiangxi Province Key Laboratory of Preventive Medicine, 461 BaYi St, Nanchang, 330006, PR China.
| | - L Li
- School of Public Health, Nanchang University, Nanchang, Jiangxi Province Key Laboratory of Preventive Medicine, 461 BaYi St, Nanchang, 330006, PR China
| | - J Jiang
- New York University, 6 Metro Tech Center, Brooklyn, NY 11201, USA
| | - L Wu
- School of Public Health, Nanchang University, Nanchang, Jiangxi Province Key Laboratory of Preventive Medicine, 461 BaYi St, Nanchang, 330006, PR China.
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30
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Wang Q, Guan Z, Qi L, Zhuang J, Wang C, Hong S, Yan L, Wu Y, Cao X, Cao J, Yan J, Zou T, Liu Z, Zhang D, Yan C, Yin P. Structural insight into the SAM-mediated assembly of the mitochondrial TOM core complex. Science 2021; 373:1377-1381. [PMID: 34446444 DOI: 10.1126/science.abh0704] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Qiang Wang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Zeyuan Guan
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Liangbo Qi
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Jinjin Zhuang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Chen Wang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Sixing Hong
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Ling Yan
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Yan Wu
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiaoqian Cao
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Jianbo Cao
- Public Laboratory of Electron Microscopy, Huazhong Agricultural University, Wuhan 430070, China
| | - Junjie Yan
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Tingting Zou
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhu Liu
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Delin Zhang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
| | - Chuangye Yan
- Beijing Advanced Innovation Center for Structural Biology, Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Ping Yin
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan 430070, China
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Pei K, Zhang J, Zou T, Liu Z. AimR Adopts Preexisting Dimer Conformations for Specific Target Recognition in Lysis-Lysogeny Decisions of Bacillus Phage phi3T. Biomolecules 2021; 11:biom11091321. [PMID: 34572534 PMCID: PMC8464984 DOI: 10.3390/biom11091321] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/30/2021] [Accepted: 09/05/2021] [Indexed: 12/04/2022] Open
Abstract
A bacteriophage switches between lytic and lysogenic life cycles. The AimR-AimP-AimX communication system is responsible for phage lysis-lysogeny decisions during the infection of Bacillus subtilis. AimX is a regulator biasing phage lysis, AimR is a transcription factor activating AimX expression, and AimP is an arbitrium peptide that determines phage lysogeny by deactivating AimR. A strain-specific mechanism for the lysis-lysogeny decisions is proposed in SPbeta and phi3T phages. That is, the arbitrium peptide of the SPbeta phage stabilizes the SPbeta AimR (spAimR) dimer, whereas the phi3T-derived peptide disassembles the phi3T AimR (phAimR) dimer into a monomer. Here, we find that phAimR does not undergo dimer-to-monomer conversion upon arbitrium peptide binding. Gel-filtration, static light scattering (SLS) and analytical ultracentrifugation (AUC) results show that phAimR is dimeric regardless of the presence of arbitrium peptide. Small-angle X-ray scattering (SAXS) reveals that the arbitrium peptide binding makes an extended dimeric conformation. Single-molecule fluorescence resonance energy transfer (smFRET) analysis reveals that the phAimR dimer fluctuates among two distinct conformational states, and each preexisting state is selectively recognized by the arbitrium peptide or the target DNA, respectively. Collectively, our biophysical characterization of the phAimR dynamics underlying specific target recognition provides new mechanistic insights into understanding lysis-lysogeny decisions in Bacillus phage phi3T.
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Zou T, Zeng C, Qu J, Yan X, Lin Z. Rutaecarpine Increases Anticancer Drug Sensitivity in Drug-Resistant Cells through MARCH8-Dependent ABCB1 Degradation. Biomedicines 2021; 9:1143. [PMID: 34572328 PMCID: PMC8466742 DOI: 10.3390/biomedicines9091143] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 08/28/2021] [Accepted: 08/30/2021] [Indexed: 12/24/2022] Open
Abstract
The overexpression of adenosine triphosphate (ATP)-binding cassette (ABC) subfamily B member 1 (ABCB1; P-glycoprotein; MDR1) in some types of cancer cells is one of the mechanisms responsible for the development of multidrug resistance (MDR), which leads to the failure of chemotherapy. Therefore, it is important to inhibit the activity or reduce the expression level of ABCB1 to maintain an effective intracellular level of chemotherapeutic drugs. In this study, we found that rutaecarpine, a bioactive alkaloid isolated from Evodia Rutaecarpa, has the capacity to reverse ABCB1-mediated MDR. Our data indicated that the reversal effect of rutaecarpine was related to the attenuation of the protein level of ABCB1. Mechanistically, we demonstrated that ABCB1 is a newly discovered substrate of E3 ubiquitin ligase membrane-associated RING-CH 8 (MARCH8). MARCH8 can interact with ABCB1 and promote its ubiquitination and degradation. In short, rutaecarpine increased the degradation of ABCB1 protein by upregulating the protein level of MARCH8, thereby antagonizing ABCB1-mediated MDR. Notably, the treatment of rutaecarpine combined with other anticancer drugs exhibits a therapeutic effect on transplanted tumors. Therefore, our study provides a potential chemotherapeutic strategy of co-administrating rutaecarpine with other conventional chemotherapeutic agents to overcome MDR and improve therapeutic effect.
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Affiliation(s)
- Tingting Zou
- School of Life Sciences, Chongqing University, Chongqing 401331, China; (T.Z.); (C.Z.); (J.Q.)
| | - Cheng Zeng
- School of Life Sciences, Chongqing University, Chongqing 401331, China; (T.Z.); (C.Z.); (J.Q.)
| | - Junyan Qu
- School of Life Sciences, Chongqing University, Chongqing 401331, China; (T.Z.); (C.Z.); (J.Q.)
| | - Xiaohua Yan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Nanchang University, Nanchang 330006, China
| | - Zhenghong Lin
- School of Life Sciences, Chongqing University, Chongqing 401331, China; (T.Z.); (C.Z.); (J.Q.)
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Zou T, Jiang S, Zhang Y, Liu J, Yi B, Qi Y, Dissanayaka WL, Zhang C. In Situ Oxygen Generation Enhances the SCAP Survival in Hydrogel Constructs. J Dent Res 2021; 100:1127-1135. [PMID: 34328028 DOI: 10.1177/00220345211027155] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Prolonged and severe hypoxia is the main cause of death of transplanted cells prior to the establishment of functional circulation. In situ generation of oxygen by oxygen-producing scaffolds-a unique solution that could produce and deliver oxygen to the adjacent cells independently of blood perfusion-has attracted considerable attention to enhance the survivability of the transplanted cells. However, the application of oxygen-generating scaffolds for facilitating cell survival in pulp-like tissue regeneration is yet to be explored. In this study, gelatin methacryloyl (GelMA)-a biocompatible scaffolding material that closely mimics the native extracellular matrix and is conducive to cell proliferation and differentiation-was used to fabricate oxygen-generating scaffolds by loading various concentrations of CaO2. The CaO2 distribution, topography, swelling, and pore size of CaO2-GelMA hydrogels were characterized in detail. The release of O2 by the scaffold and the viability, spreading, and proliferation of stem cells from apical papilla (SCAPs) encapsulated in the GelMA hydrogels with various concentrations of CaO2 under hypoxia were evaluated. In addition, cellular constructs were engineered into root canals, and cell viability within the apical, middle, and coronal portions was assessed. Our findings showed that 0.5% CaO2-GelMA was sufficient to supply in situ oxygen for maintaining the embedded SCAP viability for 1 wk. Furthermore, the 0.5% CaO2-GelMA hydrogels improved the survivability of SCAPs within the coronal portion of the engineered cellular constructs within the root canals. This work demonstrated that 0.5% CaO2-GelMA hydrogels offer a potential promising scaffold that enhances survival of the embedded SCAPs in endodontic regeneration.
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Affiliation(s)
- T Zou
- Restorative Dental Science, Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - S Jiang
- School of Stomatology, Shenzhen University Health Science Center, Shenzhen, China
| | - Y Zhang
- Restorative Dental Science, Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - J Liu
- Restorative Dental Science, Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - B Yi
- Restorative Dental Science, Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - Y Qi
- Restorative Dental Science, Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - W L Dissanayaka
- Restorative Dental Science, Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - C Zhang
- Restorative Dental Science, Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong, China
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Zou T, Pan Y, Wang LX. [Application of BRAF in the diagnosis and treatment of thyroid papillary carcinoma]. Zhonghua Zhong Liu Za Zhi 2021; 43:629-634. [PMID: 34289553 DOI: 10.3760/cma.j.cn112152-20190331-00204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Thyroid cancer is the most common endocrine malignancy, and thyroid carcinoma (PTC) has the highest incidence rate, accounts for about 85%~90% of thyroid carcinoma. There are many markers of PTC, such as murine sarcoma viral oncogene homolog B1 (BRAF), telomerase reverse transcriptase, Ki-67, microRNA-146b, PDZ and LIM domain 5 (PDLIM5). Among them, BRAF plays an important role in the carcinogenesis, development and prognosis of PTC. This article summarizes the research progress of BRAF signaling pathway, its role in the carcinogenesis, development and prognosis of PTC, its clinical correlation with the clinical pathological characteristics of PTC, and its application in the diagnosis and treatment of PTC to provide the references to readers.
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Affiliation(s)
- T Zou
- School of Clinical Medicine, Dali University, Dali 671000, China
| | - Y Pan
- Department of Pathology, the First Affiliated Hospital of Dali University, Dali 671000, China
| | - L X Wang
- Department of Pathology, the First Affiliated Hospital of Dali University, Dali 671000, China
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Zou T, Zheng S, Bai Z, Yao J, Zhu H. CLT for linear spectral statistics of large dimensional sample covariance matrices with dependent data. Stat Pap (Berl) 2021. [DOI: 10.1007/s00362-021-01250-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Zeng C, Zou T, Qu J, Chen X, Zhang S, Lin Z. Cyclovirobuxine D Induced-Mitophagy through the p65/BNIP3/LC3 Axis Potentiates Its Apoptosis-Inducing Effects in Lung Cancer Cells. Int J Mol Sci 2021; 22:ijms22115820. [PMID: 34072333 PMCID: PMC8199090 DOI: 10.3390/ijms22115820] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 05/26/2021] [Accepted: 05/26/2021] [Indexed: 12/17/2022] Open
Abstract
Mitophagy plays a pro-survival or pro-death role that is cellular-context- and stress-condition-dependent. In this study, we revealed that cyclovirobuxine D (CVB-D), a natural compound derived from Buxus microphylla, was able to provoke mitophagy in lung cancer cells. CVB-D-induced mitophagy potentiates apoptosis by promoting mitochondrial dysfunction. Mechanistically, CVB-D initiates mitophagy by enhancing the expression of the mitophagy receptor BNIP3 and strengthening its interaction with LC3 to provoke mitophagy. Our results further showed that p65, a transcriptional suppressor of BNIP3, is downregulated upon CVB-D treatment. The ectopic expression of p65 inhibits BNIP3 expression, while its knockdown significantly abolishes its transcriptional repression on BNIP3 upon CVB-D treatment. Importantly, nude mice bearing subcutaneous xenograft tumors presented retarded growth upon CVB-D treatment. Overall, we demonstrated that CVB-D treatment can provoke mitophagy and further revealed that the p65/BNIP3/LC3 axis is one potential mechanism involved in CVB-D-induced mitophagy in lung cancer cells, thus providing an effective antitumor therapeutic strategy for the treatment of lung cancer patients
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Affiliation(s)
- Cheng Zeng
- School of Life Sciences, Chongqing University, Chongqing 401331, China; (C.Z.); (T.Z.); (J.Q.); (X.C.)
| | - Tingting Zou
- School of Life Sciences, Chongqing University, Chongqing 401331, China; (C.Z.); (T.Z.); (J.Q.); (X.C.)
| | - Junyan Qu
- School of Life Sciences, Chongqing University, Chongqing 401331, China; (C.Z.); (T.Z.); (J.Q.); (X.C.)
| | - Xu Chen
- School of Life Sciences, Chongqing University, Chongqing 401331, China; (C.Z.); (T.Z.); (J.Q.); (X.C.)
| | - Suping Zhang
- Shenzhen Key Laboratory of Precision Medicine for Hematological Malignancies, Department of Pharmacology, Base for International Science and Technology Cooperation: Carson Cancer Stem Cell Vaccines R&D Center, International Cancer Center, Shenzhen University Health Science Center, Shenzhen 518055, China
- Correspondence: (S.Z.); (Z.L.)
| | - Zhenghong Lin
- School of Life Sciences, Chongqing University, Chongqing 401331, China; (C.Z.); (T.Z.); (J.Q.); (X.C.)
- Correspondence: (S.Z.); (Z.L.)
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Xu L, Chen Q, Zou T, Cheng K, Ling Y, Xu Y, Pang Y, Liu G, Zhu W, Ge J. 11-year follow-up outcomes of catheter ablation of para-hisian accessory pathways. Europace 2021. [DOI: 10.1093/europace/euab116.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Ablation of para-hisian accessory pathways (APs) remains challenging due to anatomic characteristics and few studies have focused on the causes for recurrence of radiofrequency ablation of para-hisian APs.
Objective
This retrospective single center study was aimed to explore the risk factors for recurrence of para-hisian APs.
Methods
113 patients who had a para-hisian AP with an acute success were enrolled in the study. In the 11-year follow-up, 15 cases had a recurrent para-hisian AP. Therefore 98 patients were classified into success group while 15 patients were classified into recurrence group. Demographic and ablation characteristics were analyzed.
Results
Gender difference was similar in two groups. The median age was 36.2 years old and was younger in recurrence group. Maximum ablation power was significantly higher in success group (29 ± 7.5 vs 22.9 ± 7.8, p < 0.01). Ablation time of final target sites was found to be markedly higher in success group (123.4 ± 53.1 vs 86.7 ± 58.3, p < 0.05). Ablation time less than 60 seconds was detected in 12 (12.2%) cases in success group and 7 (46.7%) cases in recurrence group (p < 0.01). Occurrence of junctional rhythm was significantly higher in recurrence group (25.5% vs 53.3%, p < 0.05). No severe conduction block, no pacemaker implantation and no stroke were reported. Junctional rhythm during ablation (OR = 3.833, 95%CI 1.083-13.572, p = 0.037) and ablation time <60s (OR = 5.487, 95%CI 1.411-21.340, p = 0.014) were independent risk factors for the recurrence of para-hisian AP.
Conclusions
Considering the long-term safety of ablation of para-hisian AP, proper extension of ablation time and increase of ablation power could be applied during operation.
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Affiliation(s)
- L Xu
- Zhongshan Hospital, Fudan University, Cardiology Department, Shanghai, China
| | - Q Chen
- Zhongshan Hospital, Fudan University, Cardiology Department, Shanghai, China
| | - T Zou
- Zhongshan Hospital, Fudan University, Cardiology Department, Shanghai, China
| | - K Cheng
- Zhongshan Hospital, Fudan University, Cardiology Department, Shanghai, China
| | - Y Ling
- Zhongshan Hospital, Fudan University, Cardiology Department, Shanghai, China
| | - Y Xu
- Zhongshan Hospital, Fudan University, Cardiology Department, Shanghai, China
| | - Y Pang
- Zhongshan Hospital, Fudan University, Cardiology Department, Shanghai, China
| | - G Liu
- Zhongshan Hospital, Fudan University, Cardiology Department, Shanghai, China
| | - W Zhu
- Zhongshan Hospital, Fudan University, Cardiology Department, Shanghai, China
| | - J Ge
- Zhongshan Hospital, Fudan University, Cardiology Department, Shanghai, China
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Qu J, Zou T, Lin Z. The Roles of the Ubiquitin-Proteasome System in the Endoplasmic Reticulum Stress Pathway. Int J Mol Sci 2021; 22:1526. [PMID: 33546413 PMCID: PMC7913544 DOI: 10.3390/ijms22041526] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 02/01/2021] [Accepted: 02/02/2021] [Indexed: 02/07/2023] Open
Abstract
The endoplasmic reticulum (ER) is a highly dynamic organelle in eukaryotic cells, which is essential for synthesis, processing, sorting of protein and lipid metabolism. However, the cells activate a defense mechanism called endoplasmic reticulum stress (ER stress) response and initiate unfolded protein response (UPR) as the unfolded proteins exceed the folding capacity of the ER due to the environmental influences or increased protein synthesis. ER stress can mediate many cellular processes, including autophagy, apoptosis and senescence. The ubiquitin-proteasome system (UPS) is involved in the degradation of more than 80% of proteins in the cells. Today, increasing numbers of studies have shown that the two important components of UPS, E3 ubiquitin ligases and deubiquitinases (DUBs), are tightly related to ER stress. In this review, we summarized the regulation of the E3 ubiquitin ligases and DUBs in ER stress.
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Affiliation(s)
| | | | - Zhenghong Lin
- School of Life Sciences, Chongqing University, Chongqing 401331, China; (J.Q.); (T.Z.)
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Zhang P, Zou T, Sun D, Yin Y, Zhao J. Oxygen interaction with alloying elements (Cr/Ni) and vacancies in dilute austenitic iron alloys: A first-principles study. Fusion Engineering and Design 2021. [DOI: 10.1016/j.fusengdes.2020.112123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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40
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He F, Yang J, Zou T, Xu Z, Tian Y, Sun W, Wang H, Sun Y, Lei H, Chen Z, Liu J, Tan X, Shen Y. A gold nanoparticle-based immunochromatographic assay for simultaneous detection of multiplex sildenafil adulterants in health food by only one antibody. Anal Chim Acta 2021; 1141:1-12. [DOI: 10.1016/j.aca.2020.10.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 10/05/2020] [Accepted: 10/16/2020] [Indexed: 10/23/2022]
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41
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Zou T, Lin R, Zheng S, Tian GL. Two-sample tests for high-dimensional covariance matrices using both difference and ratio. Electron J Stat 2021. [DOI: 10.1214/20-ejs1783] [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: 11/19/2022]
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42
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Alim A, Song H, Zou T. Analysis of meaty aroma and umami taste in thermally treated yeast extract by means of sensory-guided screening. Eur Food Res Technol 2020. [DOI: 10.1007/s00217-020-03561-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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43
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Zou T, Zheng C, Zhang Z, Yu L, Fu C. Neoadjuvant chemotherapy efficacy and prognostic factors in 187 cervical cancer patients with IB2 and IIA2 stage. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2020; 45:297-304. [PMID: 32386022 DOI: 10.11817/j.issn.1672-7347.2020.190105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVES To investigate the efficacy and prognostic factors for patients receiving neoadjuvant chemotherapy (NACT) before operation in stage IB2 and IIA2 cervical cancer. METHODS A total of 187 patients with IB2 and IIA2 cervical cancer who received NACT combined surgery from January 2005 to January 2016 were enrolled. All patients were divided into an effective group (n=142) and an ineffective group (n=45) according to the chemotherapy efficacy. Clinical characteristics (containing tumor diameter, hematological inflammatory indexes, etc.) before chemotherapy and postoperative pathology between the two groups were compared. Patient survival analysis was performed by Kaplan-Meier method. The methods of univariate and multifactor analysis were used to analyze the relationship between NACT curative effect, postoperative pathological factors, and survival of patients. RESULTS The number of patients with tumor diameter less than 5 cm was more in the chemotherapy effective group than that in the ineffective group (P=0.015). Three hematological inflammatory indexes (systemic inflammatory response index, neutrophil-lymphocyte ratio, and monocyte-lymphocyte ratio) in the effective group were lower than those in the ineffective group, respectively (P<0.05). The rates of pelvic lymph node metastasis and cervical deep myometrial invasion in the effective group were lower than those in the ineffective group (P<0.05). The 3-year and 5-year overall survival of NACT patients were 92.6% and 82.9%, respectively. Univariate analysis showed that chemotherapy efficacy, hematological inflammatory indexes, pelvic lymph node metastasis, and cervical deep myometrial invasion were related to the survival of patients (P<0.05). Further multivariate analysis demonstrated that pelvic lymph node metastasis was an independent risk factor for survival of patients (P<0.001), whereas effective NACT treatment was a protective factor for survival of patients (P<0.001). CONCLUSIONS Tumor diameter and hematologic inflammation indexes before treatment are the relevant factors for NACT efficacy in patients with IB2 and IIA2 cervical cancer. Chemotherapy efficacy and pelvic lymph node metastasis are prognostic factors for NACT patients.
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Affiliation(s)
- Tingting Zou
- Department of Gynecology, Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Chunying Zheng
- Department of Gynecology, Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Zhibang Zhang
- Department of Gynecology, Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Li Yu
- Department of Gynecology, Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Chun Fu
- Department of Gynecology, Second Xiangya Hospital, Central South University, Changsha 410011, China
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Wang Y, Liu W, Xin W, Zou T, Zheng X, Li Y, Xie X, Sun X, Yu W, Liu Z, Chen S, Yang J, Guo C. Back-Reflected Performance-Enhanced Flexible Perovskite Photodetectors through Substrate Texturing with Femtosecond Laser. ACS Appl Mater Interfaces 2020; 12:26614-26623. [PMID: 32419457 DOI: 10.1021/acsami.0c04124] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Recently, enhancing the performance of flexible perovskite photodetectors through facile and effective means has gained greater attention. In contrast to typical approaches through modifying light-active materials, we present here a simple but effective design by improving light-matter interactions through near-field optical interference on a back-reflected substrate, whose architecture includes a morphologically flat top surface and a backscattering surface textured with micro/nanostructures by the femtosecond laser direct writing. A CH3NH3PbI3 perovskite film and poly(ethylene terephthalate) are selected as the light-active and base materials, respectively. Under a 1 V bias voltage actuation and 532 nm laser irradiation at an intensity of 10 mW cm-2, the flexible device exhibits excellent performance in photoresponsivity (47.1 mA W-1), detectivity (3.7 × 1011 Jones), and on/off ratio (4600). Due to the near-field optical enhancement of the substrate and the strong light-matter interaction, the above performance parameters are enhanced by at least 5 times over a wide spectral range of 220-780 nm. Such enhancement behaviors are independent of active material properties and therefore can be compatible with other operations such as crystalline transformation, doping, and interface modification. Moreover, the alteration of stress distribution on the structured substrate facilitates the bending robustness and stability. These features highlight the potential of back-reflected design in the development of flexible perovskite photoelectric devices, which are especially suitable for large-scale industrial production.
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Affiliation(s)
- Ye Wang
- State Key Laboratory for Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wenwei Liu
- The Key Laboratory of Weak Light Nonlinear Photonics Ministry of Education, Teda Applied Physics Institute and School of Physics, Nankai University, Tianjin 300071, China
| | - Wei Xin
- State Key Laboratory for Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
| | - Tingting Zou
- State Key Laboratory for Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xin Zheng
- State Key Laboratory for Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yanshuang Li
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
| | - Xiuhua Xie
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
| | - Xiaojuan Sun
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
| | - Weili Yu
- State Key Laboratory for Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
| | - Zhibo Liu
- The Key Laboratory of Weak Light Nonlinear Photonics Ministry of Education, Teda Applied Physics Institute and School of Physics, Nankai University, Tianjin 300071, China
| | - Shuqi Chen
- The Key Laboratory of Weak Light Nonlinear Photonics Ministry of Education, Teda Applied Physics Institute and School of Physics, Nankai University, Tianjin 300071, China
| | - Jianjun Yang
- State Key Laboratory for Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
| | - Chunlei Guo
- State Key Laboratory for Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
- The Institute of Optics, University of Rochester, Rochester, New York 14627, United States
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Zou Y, Zou T, Zhao C, Wang B, Xing J, Yu Z, Cheng J, Xin W, Yang J, Yu W, Dong H, Guo C. A Highly Sensitive Single Crystal Perovskite-Graphene Hybrid Vertical Photodetector. Small 2020; 16:e2000733. [PMID: 32410334 DOI: 10.1002/smll.202000733] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 03/26/2020] [Accepted: 04/06/2020] [Indexed: 06/11/2023]
Abstract
Organolead trihalide perovskites have attracted significant attention for optoelectronic applications due to their excellent physical properties in the past decade. Generally, both grain boundaries in perovskite films and the device structure play key roles in determining the device performance, especially for horizontal-structured device. Here, the first optimized vertical-structured photodetector with the perovskite single crystal MAPbBr3 as the light absorber and graphene as the transport layer is shown. The hybrid device combines strong photoabsorption characteristics of perovskite and high carrier mobility of flexible graphene, exhibits excellent photoresponse performance with high photoresponsivity (≈1017.1 A W-1 ) and high photodetectivity (≈2.02 × 1013 Jones) in a low light intensity (0.66 mW cm-2 ) under the actuations of 3 V bias and laser irradiation at 532 nm. In particular, an ultrahigh photoconductive gain of ≈2.37 × 103 is attained because of fast charge transfer in the graphene and large recombination lifetime in the perovskite single crystal. The vertical architecture combining perovskite crystal with highly conductive graphene offers opportunities to fulfill the synergistic effect of perovskite and 2D materials, is thus promising for developing high-performance electronic and optoelectronic devices.
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Affiliation(s)
- Yuting Zou
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS), Changchun, 130033, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Tingting Zou
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS), Changchun, 130033, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Chen Zhao
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS), Changchun, 130033, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Bin Wang
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS), Changchun, 130033, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jun Xing
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS), Changchun, 130033, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Zhi Yu
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS), Changchun, 130033, P. R. China
| | - Jinluo Cheng
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS), Changchun, 130033, P. R. China
| | - Wei Xin
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS), Changchun, 130033, P. R. China
| | - Jianjun Yang
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS), Changchun, 130033, P. R. China
| | - Weili Yu
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS), Changchun, 130033, P. R. China
| | - Huanli Dong
- Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Beijing, 100190, P. R. China
| | - Chunlei Guo
- The Guo Photonics Laboratory, State Key Laboratory of Applied Optics Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS), Changchun, 130033, P. R. China
- The Institute of Optics, University of Rochester, Rochester, NY, 14627, USA
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Wu T, Shen J, Li Z, Zou T, Xin W, Xing F, Zhang F, Man Z, Fu S. Graphene-based ultrasensitive optical microfluidic sensor for the real-time and label-free monitoring of simulated arterial blood flow. Opt Express 2020; 28:16594-16604. [PMID: 32549478 DOI: 10.1364/oe.392993] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 05/11/2020] [Indexed: 06/11/2023]
Abstract
Highly sensitive, real-time and label-free sensing of liquid flow in microfluidic environments remains challenging. Here, by growing high-quality graphene directly on a glass substrate, we designed a microfluidic-integrated graphene-based flow sensor (GFS) capable of detecting complex, weak, and transient flow velocity and pressure signals in a microfluidic environment. This device was used to study weak and transient liquid flows, especially blood flow, which is closely related to heart and artery functions. By simulating cardiac peristalsis and arterial flow using peristaltic pumps and microfluidic systems, we monitored simulated arterial blood flow. This ultrasensitive graphene-based flow sensor accurately detected a flow velocity limit as low as 0.7 mm/s, a pumping frequency range of 0.04 Hz to 2.5 Hz, and a pressure range from 0.6 kPa to 14 kPa. By measuring the blood flow velocities and pressures, pathological blood flow signals were distinguished and captured by the corresponding flow velocities or pressures, which can reflect vascular occlusion and heart functions. This sensor may be used for the real-time and label-free monitoring of patients' basic vital signs using their blood flow and provide a possible new method for the care of critically ill patients.
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Zou T, Zhao B, Xin W, Wang Y, Wang B, Zheng X, Xie H, Zhang Z, Yang J, Guo C. High-speed femtosecond laser plasmonic lithography and reduction of graphene oxide for anisotropic photoresponse. Light Sci Appl 2020; 9:69. [PMID: 32351693 PMCID: PMC7183510 DOI: 10.1038/s41377-020-0311-2] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 04/01/2020] [Accepted: 04/07/2020] [Indexed: 05/11/2023]
Abstract
Micro/nanoprocessing of graphene surfaces has attracted significant interest for both science and applications due to its effective modulation of material properties, which, however, is usually restricted by the disadvantages of the current fabrication methods. Here, by exploiting cylindrical focusing of a femtosecond laser on graphene oxide (GO) films, we successfully produce uniform subwavelength grating structures at high speed along with a simultaneous in situ photoreduction process. Strikingly, the well-defined structures feature orientations parallel to the laser polarization and significant robustness against distinct perturbations. The proposed model and simulations reveal that the structure formation is based on the transverse electric (TE) surface plasmons triggered by the gradient reduction of the GO film from its surface to the interior, which eventually results in interference intensity fringes and spatially periodic interactions. Further experiments prove that such a regular structured surface can cause enhanced optical absorption (>20%) and an anisotropic photoresponse (~0.46 ratio) for the reduced GO film. Our work not only provides new insights into understanding the laser-GO interaction but also lays a solid foundation for practical usage of femtosecond laser plasmonic lithography, with the prospect of expansion to other two-dimensional materials for novel device applications.
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Affiliation(s)
- Tingting Zou
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033 Changchun, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Bo Zhao
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033 Changchun, China
- Department of Electronic Information and Physics, Changzhi University, 046011 Changzhi, China
| | - Wei Xin
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033 Changchun, China
| | - Ye Wang
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033 Changchun, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Bin Wang
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033 Changchun, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Xin Zheng
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033 Changchun, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Hongbo Xie
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033 Changchun, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Zhiyu Zhang
- Key Laboratory of Optical System Advanced Manufacturing Technology, Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS), 130033 Changchun, China
| | - Jianjun Yang
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033 Changchun, China
| | - Chunlei Guo
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033 Changchun, China
- The Institute of Optics, University of Rochester, Rochester, NY 14627 USA
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Abstract
As the prevalence of being overweight and obesity has increased worldwide, there is an increasing concern about satiation/satiety that can be achieved by eating. The ability of an individual to perceive tastes in the mouth is believed to be one of the many factors that influence food intake; the taste may affect appetite regulation and energy intake, playing an important role in promoting satiation/satiety. Satiation/satiety is actually induced by food and may be related to physiological and psychological factors such as several basic tastes, the exposure time of the taste and the cognition of different groups and individuals. This paper reviews the mechanism by which taste regulates satiation/satiety and demonstrates how taste and the taste perception of food prompt the brain to send satiation/satiety signals. Existing problems in taste and satiation/satiety and the prospective application of related research in the food industry are addressed, providing a scientific basis and theoretical guidance for the development and utilization of satiation/satiety from the perspective of taste.
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Affiliation(s)
- Ting Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Laboratory of Molecular Sensory Science, Beijing Technology and Business University, Beijing 100048, China.
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Wu P, Cheng C, Song X, Yang L, Deng D, Du Z, Chen X, Zou T, Qiao L, Li N, Zhou P, Du L, Zhu Y. Acupoint combination effect of Shenmen (HT 7) and Sanyinjiao (SP 6) in treating insomnia: study protocol for a randomized controlled trial. Trials 2020; 21:261. [PMID: 32164719 PMCID: PMC7069176 DOI: 10.1186/s13063-020-4170-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 02/13/2020] [Indexed: 11/17/2022] Open
Abstract
Background Insomnia is a global disease with a high incidence and acupuncture therapy is a well appropriate method to treat insomnia. Shenmen (HT 7) and Sanyinjiao (SP 6) are the acupoints most commonly used to treat insomnia. Although they can obviously relieve the clinical symptoms of insomnia, it is unclear whether they must be used together, whether the combination of two acupoints may have a synergistic or antagonistic effect, and whether there is a primary or secondary relationship between the two points in the treatment of insomnia. Further studies are needed. Therefore, in this study, we are exploring the acupoint combination effect and biological mechanism of HT 7 and SP 6 in treating insomnia. Methods/design This will be a parallel group randomized controlled trial. The study will recruit 120 patients with insomnia randomly assigned to a control group, an electroacupuncture on HT 7 group, an electroacupuncture on SP 6 group, and an electroacupuncture on HT 7 and SP 6 group. The allocation ratio is 1:1:1:1, with 30 subjects in each group. Meanwhile, ten healthy subjects who meet the study criteria will be recruited as the healthy control group. Patients in the intervention groups will be given ten rounds of electroacupuncture stimulation on the corresponding acupoints for 2 weeks, five times per week, with 2 days of rest between the two treatment courses. Patients in the control group will also receive the same two courses of ten rounds of compensatory acupuncture therapy after a 2-week waiting period for treatment. The major outcome measures of this study include the Sleep Dysfunction Rating Scale, the Insomnia Severity Index, Epworth Sleepiness Scale, the Zung Self-Rating Anxiety Scale, and the Zung Self-Rating Depression Scale, combined with the Measure Your Medical Outcome Profile, to evaluate insomnia and the emotional state of patients with insomnia. The secondary outcome measures include sleep composition monitored by polysomnography and measurements of acetylcholine, serotonin, dopamine, norepinephrine, melatonin, gamma-aminobutyric acid, and metabolic biomarkers in serum. Discussion In this study, we are exploring the acupoint combination effect and biological mechanism of HT 7 and SP 6 in treating insomnia, which may provide evidence for the clinical application of acupuncture and acupoint selection in the treatment of insomnia. Trial registration Chinese Clinical Trial Registry, Chi-CTR-1800017483. Registered on 1 August 2018.
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Affiliation(s)
- Pei Wu
- Acupuncture and Tuina School/3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, 37 Shierqiao Road, Chengdu, 610075, Sichuan, China
| | - Cisong Cheng
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Chengdu, 611137, Sichuan, China
| | - Xiaojun Song
- Acupuncture and Tuina School/3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, 37 Shierqiao Road, Chengdu, 610075, Sichuan, China
| | - Ling Yang
- Chinese Acupuncture of 1st Teaching Hospital of Chengdu University of Traditional Chinese Medicine, 39 Shierqiao Road, Chengdu, Sichuan, China
| | - Dandan Deng
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Chengdu, 611137, Sichuan, China
| | - Zhenrong Du
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Chengdu, 611137, Sichuan, China
| | - Xingyu Chen
- Acupuncture and Tuina School/3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, 37 Shierqiao Road, Chengdu, 610075, Sichuan, China
| | - Tingting Zou
- Acupuncture and Tuina School/3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, 37 Shierqiao Road, Chengdu, 610075, Sichuan, China
| | - Ling Qiao
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Chengdu, 611137, Sichuan, China
| | - Na Li
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Chengdu, 611137, Sichuan, China
| | - Pingping Zhou
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Chengdu, 611137, Sichuan, China
| | - Li Du
- Acupuncture and Tuina School/3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, 37 Shierqiao Road, Chengdu, 610075, Sichuan, China
| | - Yihui Zhu
- Acupuncture and Tuina School/3rd Teaching Hospital, Chengdu University of Traditional Chinese Medicine, 37 Shierqiao Road, Chengdu, 610075, Sichuan, China.
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50
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Zou T, Sato S, Yasukawa R, Takeuchi R, Ozaki S, Fujii S, Takenaka S. The Interaction of Cyclic Naphthalene Diimide with G-Quadruplex under Molecular Crowding Condition. Molecules 2020; 25:molecules25030668. [PMID: 32033198 PMCID: PMC7037305 DOI: 10.3390/molecules25030668] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 01/24/2020] [Accepted: 02/01/2020] [Indexed: 01/23/2023] Open
Abstract
G-quadruplex specific targeting molecules, also termed as G4 ligands, are attracting increasing attention for their ability to recognize and stabilize G-quadruplex and high potentiality for biological regulation. However, G4 ligands recognizing G-quadruplex were generally investigated within a dilute condition, which might be interfered with under a cellular crowding environment. Here, we designed and synthesized several new cyclic naphthalene diimide (cNDI) derivatives, and investigated their interaction with G-quadruplex under molecular crowding condition (40% v/v polyethylene glycol (PEG)200) to mimic the cellular condition. The results indicated that, under molecular crowding conditions, cNDI derivatives were still able to recognize and stabilize G-quadruplex structures based on circular dichroism measurement. The binding affinities were slightly decreased but still comparatively high upon determination by isothermal titration calorimetry and UV-vis absorbance spectroscopy. More interestingly, cNDI derivatives were observed with preference to induce a telomere sequence to form a hybrid G-quadruplex under cation-deficient molecular crowding conditions.
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Affiliation(s)
- Tingting Zou
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka 804-8550, Japan; (T.Z.); (S.S.); (R.Y.); (R.T.); (S.O.)
- Research Center for Bio-Microsensing Technology, Kyushu Institute of Technology, Fukuoka 804-8550, Japan
| | - Shinobu Sato
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka 804-8550, Japan; (T.Z.); (S.S.); (R.Y.); (R.T.); (S.O.)
- Research Center for Bio-Microsensing Technology, Kyushu Institute of Technology, Fukuoka 804-8550, Japan
| | - Rui Yasukawa
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka 804-8550, Japan; (T.Z.); (S.S.); (R.Y.); (R.T.); (S.O.)
| | - Ryusuke Takeuchi
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka 804-8550, Japan; (T.Z.); (S.S.); (R.Y.); (R.T.); (S.O.)
| | - Shunsuke Ozaki
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka 804-8550, Japan; (T.Z.); (S.S.); (R.Y.); (R.T.); (S.O.)
| | - Satoshi Fujii
- Department of Bioscience and Bioinformatics, Kyushu Institute of Technology, Fukuoka 820-8502, Japan;
| | - Shigeori Takenaka
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka 804-8550, Japan; (T.Z.); (S.S.); (R.Y.); (R.T.); (S.O.)
- Research Center for Bio-Microsensing Technology, Kyushu Institute of Technology, Fukuoka 804-8550, Japan
- Correspondence: ; Tel.: +81-93-884-3322
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