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Guo D, Wan W, Bai X, Wen R, Peng J, Lin P, Liao W, Huang W, Liu D, Peng Y, Kang T, Yang H, He Y. Intra-individual comparison of Sonazoid contrast-enhanced ultrasound and SonoVue contrast-enhanced ultrasound in diagnosing hepatocellular carcinoma. Abdom Radiol (NY) 2024:10.1007/s00261-024-04250-7. [PMID: 38584190 DOI: 10.1007/s00261-024-04250-7] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 02/10/2024] [Accepted: 02/13/2024] [Indexed: 04/09/2024]
Abstract
PURPOSE To assess whether the diagnostic performance of Sonazoid contrast-enhanced ultrasound (SZUS) is non-inferior to that of SonoVue contrast-enhanced ultrasound (SVUS) in diagnosing hepatocellular carcinoma (HCC) in individuals with high risk. MATERIALS AND METHODS This prospective study was conducted from October 2020 to May 2022 and included participants with a high risk of HCC who underwent SZUS and SVUS. All lesions were confirmed by clinical or pathological diagnosis. Each nodule was classified according to the Contrast-Enhanced Ultrasound Liver Imaging Reporting and Data System version 2017 (CEUS LI-RADS v2017) for SVUS and SZUS and the modified CEUS LI-RADS (using Kupffer phase defect instead of late and mild washout) for SZUS. The diagnostic performance of both two modalities for all observations was compared. Analysis of the vascular phase and Kupffer phase imaging characteristics of CEUS was performed. RESULTS One hundred and fifteen focal liver lesions from 113 patients (94 HCCs, 12 non-HCC malignancies, and 9 benign lesions) were analysed. According to CEUS LI-RADS (v2017), SVUS and SZUS showed similar sensitivity (71.3% vs. 72.3%) and specificity (85.7% vs. 81.0%) in HCC diagnosis. However, the modified CEUS LI-RADS did not significantly improve the diagnostic efficacy of Sonazoid compared to CEUS LI-RADS v2017, having equivalent sensitivity (73.4% vs. 72.3%) and specificity (81.0% vs. 81.0%). The agreement between SVUS and SZUS for all observations was 0.610 (95% CI 0.475, 0.745), while for HCCs it was 0.452 (95% CI 0.257, 0.647). CONCLUSION Using LI-RADS v2017, SZUS and SVUS showed non-inferior efficacy in evaluating HCC lesions. In addition, adding Kupffer phase defects to SZUS does not notably improve its diagnostic efficacy.
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Affiliation(s)
- Danxia Guo
- Department of Medical Ultrasound, First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Weijun Wan
- Department of Medical Ultrasound, First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Xiumei Bai
- Department of Medical Ultrasound, First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Rong Wen
- Department of Medical Ultrasound, First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Jinbo Peng
- Department of Medical Ultrasound, First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Peng Lin
- Department of Medical Ultrasound, First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Wei Liao
- Department of Medical Ultrasound, First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Weiche Huang
- Department of Medical Ultrasound, First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Dun Liu
- Department of Medical Ultrasound, First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Yuye Peng
- Department of Medical Ultrasound, First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Tong Kang
- Department of Medical Ultrasound, First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Hong Yang
- Department of Medical Ultrasound, First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Yun He
- Department of Medical Ultrasound, First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Guangxi Zhuang Autonomous Region, Nanning, 530021, China.
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Lenz HJ, Parikh A, Spigel DR, Cohn AL, Yoshino T, Kochenderfer M, Elez E, Shao SH, Deming D, Holdridge R, Larson T, Chen E, Mahipal A, Ucar A, Cullen D, Baskin-Bey E, Kang T, Hammell AB, Yao J, Tabernero J. Modified FOLFOX6 plus bevacizumab with and without nivolumab for first-line treatment of metastatic colorectal cancer: phase 2 results from the CheckMate 9X8 randomized clinical trial. J Immunother Cancer 2024; 12:e008409. [PMID: 38485190 PMCID: PMC10941175 DOI: 10.1136/jitc-2023-008409] [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] [Accepted: 02/28/2024] [Indexed: 03/17/2024] Open
Abstract
BACKGROUND Standard first-line therapies for metastatic colorectal cancer (mCRC) include fluoropyrimidine-containing regimens with oxaliplatin and/or irinotecan and a biologic agent. Immunotherapy may enhance antitumor activity in combination with standard therapies in patients with mCRC. Here, we present phase 2 results of nivolumab plus standard-of-care therapy (SOC; 5-fluorouracil/leucovorin/oxaliplatin/bevacizumab) versus SOC in the first-line treatment of patients with mCRC (CheckMate 9X8). METHODS CheckMate 9X8 was a multicenter, open-label, randomized, phase 2/3 trial. Eligible patients were at least 18 years of age with unresectable mCRC and no prior chemotherapy for metastatic disease. Patients were randomized 2:1 to receive nivolumab 240 mg plus SOC or SOC alone every 2 weeks. The primary endpoint was progression-free survival (PFS) by blinded independent central review (BICR) per Response Evaluation Criteria in Solid Tumors V.1.1. Secondary endpoints included PFS by investigator assessment; objective response rate (ORR), disease control rate, duration of response, and time to response, all by BICR and investigator assessments; overall survival; and safety. Preplanned exploratory biomarker analyses were also performed. RESULTS From February 2018 through April 2019, 310 patients were enrolled, of which 195 patients were randomized to nivolumab plus SOC (n=127) or SOC (n=68). At 21.5-month minimum follow-up, PFS with nivolumab plus SOC versus SOC did not meet the prespecified threshold for statistical significance; median PFS by BICR was 11.9 months in both arms (HR, 0.81 (95% CI, 0.53 to 1.23); p=0.30). Higher PFS rates after 12 months (18 months: 28% vs 9%), higher ORR (60% vs 46%), and durable responses (median 12.9 vs 9.3 months) were observed with nivolumab plus SOC versus SOC. Grade 3-4 treatment-related adverse events were reported in 75% versus 48% of patients; no new safety signals were identified. CONCLUSIONS The CheckMate 9X8 trial investigating first-line nivolumab plus SOC versus SOC in patients with mCRC did not meet its primary endpoint of PFS by BICR. Nivolumab plus SOC showed numerically higher PFS rates after 12 months, a higher response rate, and more durable responses compared with SOC alone, with acceptable safety. Further investigation to identify subgroups of patients with mCRC that may benefit from nivolumab plus SOC versus SOC in the first-line setting is warranted. TRIAL REGISTRATION NUMBER NCT03414983.
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Affiliation(s)
- Heinz-Josef Lenz
- Department of Medical Oncology, USC Norris Comprehensive Cancer Center, Los Angeles, California, USA
| | - Aparna Parikh
- Department of Medicine, Division of Hematology and Oncology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - David R Spigel
- Department of Oncology, Sarah Cannon Research Institute, Nashville, Tennessee, USA
| | - Allen L Cohn
- Department of Medical Oncology, US Oncology Research, Rocky Mountain Cancer Centers, Denver, Colorado, USA
| | - Takayuki Yoshino
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center-Hospital East, Kashiwa, Chiba, Japan
| | | | - Elena Elez
- Department of Medical Oncology, Vall d'Hebron Hospital Campus and Institute of Oncology (VHIO), Universitat Autònoma de Barcelona, Barcelona, Spain
| | | | - Dustin Deming
- Departments of Medicine and Oncology, University of Wisconsin Carbone Cancer Center, Madison, Wisconsin, USA
| | - Regan Holdridge
- Comprehensive Cancer Centers of Nevada, Henderson, Nevada, USA
| | - Timothy Larson
- Department of Medical Oncology, Minnesota Oncology Hematology, Minneapolis, Minnesota, USA
| | - Eric Chen
- Department of Medical Oncology and Hematology, Princess Margaret Hospital Cancer Centre, Toronto, Ontario, Canada
| | - Amit Mahipal
- Department of Oncology, Mayo Clinic, Rochester, Minnesota, USA
| | - Antonio Ucar
- Miami Cancer Institute (part of Baptist Health South Florida), Miami, Florida, USA
| | - Dana Cullen
- Oncology Clinical Science, Bristol Myers Squibb, Princeton, New Jersey, USA
| | | | - Tong Kang
- Biostatistics, Bristol Myers Squibb, Princeton, New Jersey, USA
| | - Amy B Hammell
- Precision Medicine, Bristol Myers Squibb, Princeton, New Jersey, USA
| | - Jin Yao
- Translational Bioinformatics, Bristol Myers Squibb, Princeton, New Jersey, USA
| | - Josep Tabernero
- Department of Medical Oncology, Vall d'Hebron Hospital Campus and Institute of Oncology (VHIO), IOB-Quiron, UVic-UCC, Barcelona, Spain
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Lei H, Xing Z, Chen X, Dai Y, Cheng B, Wang S, Kang T, Wang Q, Zhang J, Jia J, Zheng Y. Exploration of the causality of frailty index on psoriasis: A Mendelian randomization study. Skin Res Technol 2024; 30:e13641. [PMID: 38426414 PMCID: PMC10905529 DOI: 10.1111/srt.13641] [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] [Received: 11/15/2023] [Accepted: 02/19/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND Frailty is associated with a variety of diseases, but the relationship between frailty and psoriasis remains unclear. METHODS First, we conducted a two-sample Mendelian randomization based on genome-wide association studies (GWAS) to investigate genetic causality between frailty index and common diseases in dermatology. Inverse variance weighted was used to estimate causality. Second, expression quantitative trait locus (eQTLs) analysis was conducted to identify the genes affected by Single nucleotide polymorphisms (SNPs). Third, we performed function and pathway enrichment, transcriptome-wide association studies (TWAS) analysis based on eQTLs. RESULTS It was shown that the rise of frailty index could increase the risk of psoriasis (IVW, beta = 0.916, OR = 2.500, 95%CI:1.418-4.408, p = 0.002) through Mendelian randomization (MR), and there was no heterogeneity and pleiotropy. There was no causality between the frailty index and other common diseases in dermatology. We found 31 eQTLs based on strongly correlated SNPs in the causality. TWAS analysis found that the expressions of four genes were closely related to psoriasis, including HLA-DQA1, HLA-DQA2, HLA-DRB1 and HLA-DQB1. CONCLUSION It suggested that the frailty index had a significant positive causality on the risk of psoriasis, which was well documented by combined genomic, transcriptome, and proteome analyses.
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Affiliation(s)
- Hao Lei
- Department of DermatologyThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Zixuan Xing
- Department of Infectious DiseasesThe Second Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Xin Chen
- State Key Laboratory of Oral & Maxillofacial Reconstruction and RegenerationNational Clinical Research Center for Oral DiseasesShaanxi Clinical Research Center for Oral DiseasesDepartment of Orthodontics, School of StomatologyThe Fourth Military Medical UniversityXi′anChina
| | - Yilin Dai
- Department of DermatologyThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Baochen Cheng
- Department of DermatologyThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Shengbang Wang
- Department of DermatologyThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Tong Kang
- Department of DermatologyThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Qian Wang
- Department of DermatologyTangdu HospitalAir Force Military Medical UniversityXi'anChina
| | - Jing Zhang
- Department of DermatologyThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Jinjing Jia
- State Key Laboratory of Dampness Syndrome of Chinese MedicineThe Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhouChina
- Department of DermatologyThe Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhouChina
- Department of Dermatology,Guangdong Provincial Key Laboratory of Chinese Medicine for Prevention and Treatment of Refractory Chronic DiseaseGuangzhouChina
| | - Yan Zheng
- Department of DermatologyThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
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Ogunmuyiwa J, Niño I, Kang T, Shechtman KR, Balogun OD, Ashamalla H. Increasing Accrual of Racial and Ethnic Minorities in Breast Cancer Clinical Trials by Partnering with Community Hospitals. Int J Radiat Oncol Biol Phys 2023; 117:e45. [PMID: 37785448 DOI: 10.1016/j.ijrobp.2023.06.746] [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) Clinical trials provide the highest level of evidence in evaluating the safety and efficacy of new radiation approaches for breast cancer. However, there is a significant lack of racial and ethnic diversity among participants who are enrolled. This discrepancy in research inclusion leads to limitations in applying clinical data, therapeutic indices, technique safety, and toxicity to a diverse patient population. A community-based approach, such as the inclusion of community hospitals in trial enrollment, has been shown to boost participation within these underserved populations. The aim of this study was to evaluate the rate of enrollment of racial and ethnic minorities in breast cancer clinical trials with the inclusion of community hospitals within an NYC hospital system. MATERIALS/METHODS Trial enrollment of breast cancer patients at 3 hospitals was retrospectively assessed. Patient demographics, including age, race, and ethnicity, were compared by enrollment setting. Eligible trials included prospective, randomized clinical trials assessing breast cancer irradiation. Participating hospitals included an academic hospital in Manhattan (MH), and 2 community hospitals in Brooklyn (BH) and Queens (QH). Collectively, these hospitals have a catchment area of 6.2 million, of which 35.2% are White, 19.7% are Asian, 18.3% are Black/African American (B/AA), and 21.2% are Hispanic/Latino (H/L). There is a wide demographic variety within this catchment area. BH serves neighborhoods with a B/AA population as high as 85% and QH serves neighborhoods with an Asian population as high as 54%. RESULTS From January to December 2022, 146 patients were enrolled in 4 breast cancer trials opened at MH (59.6%, n = 87), BH (28.8%, n = 42), and QH (11.6%, n = 17). The average age was 63.3 (SD = 12.1). Of all patients enrolled, 52.7% identified as White, 23.2% as B/AA, 13% as Asian, and 8.9% as H/L. Of the patients enrolled at MH, 64.4% identified as White, 12.6% as B/AA, 8% as Asian, and 8% as H/L. At BH, 50% identified as B/AA, 38% as White, 4.7% as Asian, and 11.9% as H/L. At QH, 58.8% identified as Asian, 29.4% as White, and 11.8% as B/AA. B/AA (OR = 4.41, 95% CI, 1.94-10.03; p<.01) and Asian (OR = 2.92, 95% CI, 1.07-7.93; p<.05) patients were more likely to be enrolled at a community hospital when compared to an academic hospital. There was no difference in enrollment rates between campuses for H/L patients (OR = 1.29, 95% CI, 0.41-4.06; p = .66). CONCLUSION Enrollment of participants from underrepresented racial and ethnic populations in clinical trials is critical to ensuring health equity. These findings suggest partnerships with community hospitals located in underserved populations can be a strategy to improve diversity among clinical trial participants. As it is well-documented that community hospitals can deliver high quality research with similar trial metrics to larger, academic hospitals, partnerships with community hospitals are a feasible way to reduce disparities in breast cancer research.
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Affiliation(s)
- J Ogunmuyiwa
- New York Presbyterian Brooklyn Methodist Hospital, Brooklyn, NY
| | - I Niño
- New York Presbyterian Brooklyn Methodist Hospital, Brooklyn, NY
| | - T Kang
- New York Presbyterian Brooklyn Methodist Hospital, Brooklyn, NY
| | - K R Shechtman
- New York Presbyterian Brooklyn Methodist Hospital, Brooklyn, NY
| | - O D Balogun
- New York Presbyterian Brooklyn Methodist Hospital, Brooklyn, NY; Department of Radiation Oncology, Weill Cornell Medicine, New York, NY
| | - H Ashamalla
- New York Presbyterian Brooklyn Methodist Hospital, Brooklyn, NY
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Lei H, Chen X, Cheng B, Song L, Luo R, Wang S, Kang T, Wang Q, Zheng Y. The effects of unsaturated fatty acids on psoriasis: A two-sample Mendelian randomization study. Food Sci Nutr 2023; 11:6073-6084. [PMID: 37823124 PMCID: PMC10563715 DOI: 10.1002/fsn3.3543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 06/12/2023] [Accepted: 06/20/2023] [Indexed: 10/13/2023] Open
Abstract
Unsaturated fatty acids have been reported to be associated with the risk of psoriasis. However, the causal relationship between them remains unclear This study aimed to explore the causal relationship between unsaturated FAs and psoriasis. Firstly, we obtained genome-wide association study (GWAS) data for psoriasis from the FINNGEN database (number of cases = 4510, number of controls = 212,242) and different FA levels (number of samples = 114,999) from the IEU OpenGWAS Project. Secondly, the genetic correlation coefficient was calculated using linkage disequilibrium fractional regression. Thirdly, a two-sample Mendelian randomization (MR) analysis was performed using independent instrumental variables (p < 5 × 10-8) to determine the direction of randomization. Finally, expression quantitative trait loci (eQTL)-related analyses of common single nucleotide polymorphisms (SNPs) were carried out to explore the potential molecular mechanisms of unsaturated FAs affecting psoriasis. We found that an increase in the ratio of monounsaturated fatty acids (MUFAs) to total fatty acids could increase the risk of psoriasis (inverse-variance weighted [IVW], adjusted odds ratio [OR] = 1.175; adjusted 95% confidence interval [CI] = 1.045-1.321; adjusted p = .007). However, an increase in the ratio of polyunsaturated fatty acids (PUFAa) to total fatty acids could decrease the risk of psoriasis (IVW, adjusted OR = 0.754; adjusted 95% CI = 0.631-0.901; adjusted p = .002). Moreover, an increase in the ratio of PUFAs to MUFAs could decrease the risk of psoriasis (IVW, adjusted OR = 0.823; adjusted 95% CI = 0.715-0.948; adjusted p = .007). The heterogeneity of data was eliminated, and pleiotropy was not detected. There was no statistical difference in the MR analysis of other fatty acids indices with psoriasis. Further, no statistically significant evidence was found to verify a causal relationship between psoriasis and fatty acid levels in reverse MR. Functional enrichment analysis showed that these eQTL related to common SNPs were mainly involved in organic ion transport, choline metabolism, and the expression of key metabolic factors mediated by PKA, ChREBP, and PP2A. Our study indicated that the ratio of MUFAs to total fatty acids had a positive causal effect on psoriasis, while the ratio of PUFAs to total fatty acids and the ratio of PUFAs to MUFAs had a negative causal effect on psoriasis. Moreover, PKA-, PP2A-, and ChREBP-mediated activation of metabolic factors may play an important role in this process.
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Affiliation(s)
- Hao Lei
- Department of DermatologyThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Xin Chen
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of StomatologyThe Fourth Military Medical UniversityXi'anChina
| | - Baochen Cheng
- Department of DermatologyThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Liumei Song
- Department of DermatologyThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Ruiting Luo
- Department of DermatologyThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Shengbang Wang
- Department of DermatologyThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Tong Kang
- Department of DermatologyThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
| | - Qian Wang
- Tangdu Hospital, Air Force Military Medical UniversityXi'anChina
| | - Yan Zheng
- Department of DermatologyThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'anChina
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Wang S, Zhang X, Lei H, Song L, Huang Y, Kang T, Zhang M, Wang N, Yang P, Feng S, Wang J, Bai R, Wang N, Wang W, Zheng Y. Proline-rich 11 (PRR11) promotes the progression of cutaneous squamous cell carcinoma by activating the EGFR signaling pathway. Mol Carcinog 2023; 62:613-627. [PMID: 36727626 DOI: 10.1002/mc.23510] [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: 09/25/2022] [Revised: 12/31/2022] [Accepted: 01/17/2023] [Indexed: 02/03/2023]
Abstract
Cutaneous squamous cell carcinoma (cSCC) is one of the most common skin malignancies, and its incidence rate is increasing worldwide. Proline-rich 11 (PRR11) has been reported to be involved in the occurrence and development of various tumors. However, the role of PRR11 in cSCC remains unknown. In the present study, we observed upregulated expression of PRR11 in cSCC tissues and cell lines. Knockdown of PRR11 in the cSCC cell lines A431 and SCL-1 inhibited cell proliferation by inducing cell cycle arrest during the G1/S phase transition, promoted cell apoptosis, and reduced cell migration and invasion in vitro. Conversely, overexpression of PRR11 promoted cell proliferation, decreased cell apoptosis, and enhanced cell migration and invasion. PRR11 knockdown also inhibited cSCC tumor growth in a mouse xenograft model. Mechanistic investigations by RNA sequencing revealed that 891 genes were differentially expressed genes between cells with PRR11 knockdown and control cells. Enrichment analysis of different genes showed that the epidermal growth factor receptor (EGFR) signaling pathway was the top enriched pathway. We further validated that PRR11 induced EGFR pathway activity, which contributed to cSCC progression. These data suggest that PRR11 may serve as a novel therapeutic target in cSCC.
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Affiliation(s)
- Shengbang Wang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xiu Zhang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Hao Lei
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Liumei Song
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yingjian Huang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Tong Kang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Mengdi Zhang
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Ning Wang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Pengju Yang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Shuo Feng
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jingping Wang
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Ruimin Bai
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Nan Wang
- Department of Emergency, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Wei Wang
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yan Zheng
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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Cui Z, Wu M, Liu K, Wang Y, Kang T, Meng S, Meng H. Associations between Conventional and Emerging Indicators of Dietary Carbohydrate Quality and New-Onset Type 2 Diabetes Mellitus in Chinese Adults. Nutrients 2023; 15:647. [PMID: 36771355 PMCID: PMC9919288 DOI: 10.3390/nu15030647] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/23/2023] [Accepted: 01/23/2023] [Indexed: 01/31/2023] Open
Abstract
Dietary glycemic index (GI), carbohydrate to fiber ratio (CF) and carbohydrate quality index (CQI) are conventional and emerging indicators for carbohydrate quality. We aimed to investigate the associations between these indicators and new-onset type 2 diabetes mellitus (T2DM) risk among Chinese adults. This prospective cohort study included 14,590 adults from the China Health and Nutrition Survey without cardiometabolic diseases at baseline. The associations between dietary GI, CF and CQI and T2DM risk were assessed using Cox proportional hazard regression analysis and dose-response relationships were explored using restricted cubic spline and threshold analysis. After a mean follow-up duration of 10 years, a total of 1053 new-onset T2DM cases occurred. There were U-shaped associations between dietary GI and CF and T2DM risk (both P-nonlinear < 0.0001), and T2DM risk was lowest when dietary GI was 72.85 (71.40, 74.05) and CF was 20.55 (17.92, 21.91), respectively (both P-log likelihood ratio < 0.0001). Inverse associations between CQI and T2DM risk specifically existed in participants < 60 y or attended middle school or above (both P-trend < 0.05). These findings indicated that moderate dietary GI and CF range and a higher dietary CQI score may be suggested for T2DM prevention in Chinese adults.
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Affiliation(s)
- Zhixin Cui
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, China
- Shenzhen Health Development Research and Data Management Center, Shenzhen 518028, China
| | - Man Wu
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, China
| | - Ke Liu
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, China
| | - Yin Wang
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, China
| | - Tong Kang
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, China
| | - Shuangli Meng
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, China
| | - Huicui Meng
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, China
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Guangzhou 510080, China
- Guangdong Province Engineering Laboratory for Nutrition Translation, Guangzhou 510080, China
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Kang T, Zhang C, Lei H, Luo R, Liu M, Wang S, Zhang X, Duan Q, Xiao S, Zheng Y. NPTX2 Promotes Epithelial-Mesenchymal Transition in Cutaneous Squamous Cell Carcinoma through METTL3-Mediated N6-Methyladenosine Methylation of SNAIL. J Invest Dermatol 2023; 143:977-988.e2. [PMID: 36638907 DOI: 10.1016/j.jid.2022.12.015] [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] [Received: 11/08/2021] [Revised: 11/29/2022] [Accepted: 12/13/2022] [Indexed: 01/12/2023]
Abstract
Cutaneous squamous cell carcinoma (cSCC) is the second most common type of skin cancer. NPTX2, a member of the neuronal pentraxin family, is reported to play inconsistent roles in different cancers. The role and mechanism of NPTX2 in cSCC remain unclear. In this study, we found that NPTX2 was overexpressed in both skin lesions and cell lines of cSCC. In vitro studies showed that NPTX2 facilitated cell proliferation, migration, invasion, colony formation, and epithelial‒mesenchymal translation in A431 and SCL-1 cells. NPTX2 interacted with METTL3, increased METTL3 expression, and improved N6-methyladenosine modification in cSCC cell lines. Mechanistically, NPTX2 facilitated epithelial‒mesenchymal translation by promoting METTL3-mediated N6-methyladenosine of SNAIL. METTL3 knockdown and N6-methyladenosine inhibition reversed the impacts of NPTX2 overexpression on cSCC cells. In vivo studies verified the role of NPTX2 as an oncogene in cSCC. Therefore, NPTX2 may be a potential therapeutic target for cSCC.
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Affiliation(s)
- Tong Kang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Cheng Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Hao Lei
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Ruiting Luo
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Meng Liu
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Shengbang Wang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xiu Zhang
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Qiqi Duan
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Shengxiang Xiao
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yan Zheng
- Department of Dermatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
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9
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Kang T, Yan L, Li J. Coincidences of nonlinear integrals related to ordered pair of non-additive measures. Int J Approx Reason 2023. [DOI: 10.1016/j.ijar.2022.10.015] [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: 11/05/2022]
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10
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Lin P, Wan WJ, Kang T, Qin LF, Meng QX, Wu XX, Qin HY, Lin YQ, He Y, Yang H. Molecular hallmarks of breast multiparametric magnetic resonance imaging during neoadjuvant chemotherapy. Radiol Med 2023; 128:171-183. [PMID: 36680710 PMCID: PMC9860227 DOI: 10.1007/s11547-023-01595-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 01/10/2023] [Indexed: 01/22/2023]
Abstract
PURPOSE To identify molecular basis of four parameters obtained from dynamic contrast-enhanced magnetic resonance imaging, including functional tumor volume (FTV), longest diameter (LD), sphericity, and contralateral background parenchymal enhancement (BPE). MATERIAL AND METHODS Pretreatment-available gene expression profiling and different treatment timepoints MRI features were integrated for Spearman correlation analysis. MRI feature-related genes were submitted to hypergeometric distribution-based gene functional enrichment analysis to identify related Kyoto Encyclopedia of Genes and Genomes annotation. Gene set variation analysis was utilized to assess the infiltration of distinct immune cells, which were used to determine relationships between immune phenotypes and medical imaging phenotypes. The clinical significance of MRI and relevant molecular features were analyzed to identify their prediction performance of neoadjuvant chemotherapy (NAC) and prognostic impact. RESULTS Three hundred and eighty-three patients were included for integrative analysis of MRI features and molecular information. FTV, LD, and sphericity measurements were most positively significantly correlated with proliferation-, signal transmission-, and immune-related pathways, respectively. However, BPE did not show marked correlation relationships with gene expression alteration status. FTV, LD and sphericity all showed significant positively or negatively correlated with some immune-related processes and immune cell infiltration levels. Sphericity decreased at 3 cycles after treatment initiation was also markedly negatively related to baseline sphericity measurements and immune signatures. Its decreased status could act as a predictor for prediction of response to NAC. CONCLUSION Different MRI features capture different tumor molecular characteristics that could explain their corresponding clinical significance.
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Affiliation(s)
- Peng Lin
- grid.412594.f0000 0004 1757 2961Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi People’s Republic of China ,Guangxi Zhuang Autonomous Region Engineering Research Center for Artificial Intelligence Analysis of Multimodal Tumor Image, Nanning, Guangxi People’s Republic of China
| | - Wei-Jun Wan
- grid.412594.f0000 0004 1757 2961Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi People’s Republic of China
| | - Tong Kang
- grid.412594.f0000 0004 1757 2961Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi People’s Republic of China
| | - Lian-feng Qin
- grid.256607.00000 0004 1798 2653Department of Medical Imaging, Guangxi Medical University, Nanning, Guangxi People’s Republic of China
| | - Qiu-xue Meng
- grid.256607.00000 0004 1798 2653Department of Medical Imaging, Guangxi Medical University, Nanning, Guangxi People’s Republic of China
| | - Xiao-xin Wu
- grid.256607.00000 0004 1798 2653Department of Medical Imaging, Guangxi Medical University, Nanning, Guangxi People’s Republic of China
| | - Hong-yan Qin
- grid.256607.00000 0004 1798 2653Department of Medical Imaging, Guangxi Medical University, Nanning, Guangxi People’s Republic of China
| | - Yi-qun Lin
- grid.12955.3a0000 0001 2264 7233Department of Radiology, Dongnan Hospital of Ximen University, School of Medicine, Xiamen University, Xiamen, Fujian People’s Republic of China
| | - Yun He
- grid.412594.f0000 0004 1757 2961Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi People’s Republic of China ,Guangxi Zhuang Autonomous Region Engineering Research Center for Artificial Intelligence Analysis of Multimodal Tumor Image, Nanning, Guangxi People’s Republic of China
| | - Hong Yang
- Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, People's Republic of China. .,Guangxi Zhuang Autonomous Region Engineering Research Center for Artificial Intelligence Analysis of Multimodal Tumor Image, Nanning, Guangxi, People's Republic of China.
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11
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Kang T, Gaskins J, Levy S, Datta S. Analyzing dental fluorosis data using a novel Bayesian model for clustered longitudinal ordinal outcomes with an inflated category. Stat Med 2022; 42:745-760. [PMID: 36574753 DOI: 10.1002/sim.9641] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 10/26/2022] [Accepted: 12/18/2022] [Indexed: 12/28/2022]
Abstract
We propose a Bayesian hurdle mixed-effects model to analyze longitudinal ordinal data under a complex multilevel structure. This research was motivated by the dataset gathered from the Iowa Fluoride Study (IFS) in order to establish the relationships between fluorosis status and potential risk/protective factors. Dental fluorosis is characterized by spots on tooth enamel and is due to ingestion of excessive fluoride intake during enamel formation. Observations are collected from multiple surface zones on each tooth and on all available teeth of children from the studied cohort, which are longitudinally observed at ages 9, 13, and 17. The data not only exhibit a complex hierarchical structure, but also have a large proportion of zero values that are likely to follow different statistical patterns from non-zero categories. Therefore, we develop a hurdle model to consider the zero category separately, while a proportional odds model is used for the positive categories. The estimated parameters are obtained from a Gibbs sampler implemented by the OpenBUGS software. Our model is compared with two popular methods for ordinal data: the proportional odds model and the partial proportional odds model. We perform a comprehensive analysis of the IFS data and evaluate the accuracy and effectiveness of our methodology through simulation studies. Our discoveries provide novel insights to statisticians and dental practitioners about the associations between patient and clinical characteristics and dental fluorosis.
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Affiliation(s)
- Tong Kang
- Global Biometic Data Sciences, Oncology, Bristol Myers Squibb, Lawrenceville, New Jersey
| | - Jeremy Gaskins
- Department of Bioinformatics and Biostatistics, University of Louisville, Louisville, Kentucky
| | - Steven Levy
- Department of Preventive and Community Dentistry, University of Iowa, Iowa City, Iowa
| | - Somnath Datta
- Department of Biostatistics, University of Florida, Gainesville, Florida
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12
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Zhang C, Kang T, Wang X, Song J, Zhang J, Li G. Stimuli-responsive platinum and ruthenium complexes for lung cancer therapy. Front Pharmacol 2022; 13:1035217. [PMID: 36324675 PMCID: PMC9618881 DOI: 10.3389/fphar.2022.1035217] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 10/04/2022] [Indexed: 11/13/2022] Open
Abstract
Lung cancer is the most common cause of cancer-related deaths worldwide. More efficient treatments are desperately needed. For decades, the success of platinum-based anticancer drugs has promoted the exploration of metal-based agents. Four ruthenium-based complexes have also entered clinical trials as candidates of anticancer metallodrugs. However, systemic toxicity, severe side effects and drug-resistance impeded their applications and efficacy. Stimuli-responsiveness of Pt- and Ru-based complexes provide a great chance to weaken the side effects and strengthen the clinical efficacy in drug design. This review provides an overview on the stimuli-responsive Pt- and Ru-based metallic anticancer drugs for lung cancer. They are categorized as endo-stimuli-responsive, exo-stimuli-responsive, and dual-stimuli-responsive prodrugs based on the nature of stimuli. We describe various representative examples of structure, response mechanism, and potential medical applications in lung cancer. In the end, we discuss the future opportunities and challenges in this field.
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Affiliation(s)
- Cheng Zhang
- The Department of Thoracic Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Tong Kang
- Department of Dermatology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Xinyi Wang
- The Department of Thoracic Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Jiaqi Song
- Department of Biophysics, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Jia Zhang
- The Department of Thoracic Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
- *Correspondence: Jia Zhang, ; Guanying Li,
| | - Guanying Li
- Department of Biophysics, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an, Shaanxi, China
- *Correspondence: Jia Zhang, ; Guanying Li,
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13
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Zhang C, Kang T, Wang X, Wang J, Liu L, Zhang J, Liu X, Li R, Wang J, Zhang J. LINC-PINT suppresses cisplatin resistance in gastric cancer by inhibiting autophagy activation via epigenetic silencing of ATG5 by EZH2. Front Pharmacol 2022; 13:968223. [PMID: 36091809 PMCID: PMC9452659 DOI: 10.3389/fphar.2022.968223] [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: 06/13/2022] [Accepted: 07/11/2022] [Indexed: 12/24/2022] Open
Abstract
Resistance to cisplatin (DDP) is a major obstacle in the clinical treatment of advanced gastric cancer (GC). Long noncoding RNA (lncRNA) play a significant regulatory role in the development and drug resistance of GC. In this study, we reported that the lncRNA LINC-PINT was downregulated in DDP-resistant GC cells. Functional studies showed that LINC-PINT inhibited proliferation and migration of DDP-resistant GC cells in vitro, and overexpression of LINC-PINT could enhance the sensitivity of DDP-resistant GC cells to DDP. Further investigation revealed that LINC-PINT recruited enhancer of zeste homolog 2 (EZH2) to the promotor of ATG5 to inhibit its transcription, leading to the suppression of autophagy and DDP resensitization. Collectively, our results revealed how the LINC-PINT/EZH2/ATG5 axis regulates autophagy and DDP resistance in GC. These data suggest that LINC-PINT may be a potential therapeutic target in GC.
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Affiliation(s)
- Cheng Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Tong Kang
- Department of Dermatology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Xinyi Wang
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Jizhao Wang
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Lin Liu
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Jiawei Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Xu Liu
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Rong Li
- Department of Radiotherapy, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Jiansheng Wang
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
- *Correspondence: Jiansheng Wang, ; Jia Zhang,
| | - Jia Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
- *Correspondence: Jiansheng Wang, ; Jia Zhang,
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14
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Ma B, Lu J, Kang T, Zhu M, Xiong K, Wang J. Astaxanthin supplementation mildly reduced oxidative stress and inflammation biomarkers: a systematic review and meta-analysis of randomized controlled trials. Nutr Res 2021; 99:40-50. [DOI: 10.1016/j.nutres.2021.09.005] [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] [Received: 07/12/2021] [Revised: 09/19/2021] [Accepted: 09/20/2021] [Indexed: 11/29/2022]
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15
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Li F, Wang J, Liu L, Qu J, Li Y, Bandari VK, Karnaushenko D, Becker C, Faghih M, Kang T, Baunack S, Zhu M, Zhu F, Schmidt OG. Self-Assembled Flexible and Integratable 3D Microtubular Asymmetric Supercapacitors. Adv Sci (Weinh) 2021; 8:e2103927. [PMID: 34672121 PMCID: PMC8529473 DOI: 10.1002/advs.202103927] [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: 06/13/2023]
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16
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Kim HJ, Lee HS, Kazmi SZ, Hann HJ, Kang T, Cha J, Choi S, Swan H, Kim H, Lee YS, Ahn HS. Familial risk for endometriosis and its interaction with smoking, age at menarche and body mass index: a population-based cohort study among siblings. BJOG 2021; 128:1938-1948. [PMID: 34028167 DOI: 10.1111/1471-0528.16769] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/10/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To quantify familial risk of endometriosis among full siblings and examine interactions between family history and smoking, age at menarche or body mass index (BMI). DESIGN, SETTING AND POPULATION Population-based nationwide cohort study. METHODS Using data from the Korean National Health Insurance and Screening Programme databases on kinship, healthcare utilisation, lifestyle and anthropometrics, we identified 2 109 288 women with full siblings and their environmental risk factors from 2002 to 2018. Familial risks were estimated using Cox proportional-hazards models, represented as incidence risk ratios (IRR) with 95% CI. Interaction between family history and smoking, age at menarche or BMI were assessed on an additive scale. MAIN OUTCOME MEASURES IRR of endometriosis among women with and without affected siblings. RESULTS From 19 195 women with affected siblings, 1126 developed endometriosis with an incidence of 35.45/10 000 person-years. Familial risk of endometriosis with versus without affected siblings was increased to IRR 2.75 (95% CI 2.25-3.36), and the highest risk was with affected twins (IRR 6.98; 95% CI 4.19-11.62). Women with both a family history and either smoking, early menarche or low BMI had a significantly higher risk of endometriosis compared with the general population and can be regarded as a high-risk group, the IRRs were 4.28 (95% CI 2.43-7.55), 3.47 (95% CI 2.82-4.26) and 3.09 (95% CI 2.68-3.56), respectively. Substantial effect modification of the associations was noted by smoking and early menarche, as their combined risk with family history exceeded the sum of their individual risks, which was also statistically significant. CONCLUSION Genetic factors are the primary contributor to the familial aggregation of endometriosis. Significant gene-environment interaction exists between family history and smoking or early menarche.
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Affiliation(s)
- H J Kim
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| | - H-S Lee
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| | - S Z Kazmi
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| | - H J Hann
- Medical Research Institute, College of Medicine, Ewha Womans University, Seoul, Korea
| | - T Kang
- Health and Wellness College, Sungshin Women's University, Seoul, Korea
| | - J Cha
- Department of Public Health, Korea University, Seoul, Korea
| | - S Choi
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| | - H Swan
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| | - H Kim
- Department of Obstetrics and Gynaecology, Seoul National University Hospital, Seoul, Korea
| | - Y S Lee
- Department of Health Informatics and Management, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - H S Ahn
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
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17
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Kang T, Gaskins J, Levy S, Datta S. A longitudinal Bayesian mixed effects model with hurdle Conway-Maxwell-Poisson distribution. Stat Med 2021; 40:1336-1356. [PMID: 33368533 PMCID: PMC9167575 DOI: 10.1002/sim.8844] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 09/29/2020] [Accepted: 11/21/2020] [Indexed: 11/06/2022]
Abstract
Dental caries (i.e., cavities) is one of the most common chronic childhood diseases and may continue to progress throughout a person's lifetime. The Iowa Fluoride Study (IFS) was designed to investigate the effects of various fluoride, dietary and nondietary factors on the progression of dental caries among a cohort of Iowa school children. We develop a mixed effects model to perform a comprehensive analysis of the longitudinal clustered data of IFS at ages 5, 9, 13, and 17. We combine a Bayesian hurdle framework with the Conway-Maxwell-Poisson regression model, which can account for both excessive zeros and various levels of dispersion. A hierarchical shrinkage prior distribution is used to share the temporal information for predictors in the fixed-effects model. The dependence among teeth of each individual child is modeled through a sparse covariance structure of the random effects across time. Moreover, we obtain the parameter estimates and credible intervals from a Gibbs sampler. Simulation studies are conducted to assess the accuracy and effectiveness of our statistical methodology. The results of this article provide novel tools to statistical practitioners and offer fresh insights to dental researchers on effects of various risk and protective factors on caries progression.
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Affiliation(s)
- Tong Kang
- Department of Biostatistics, University of Florida, Gainesville, Florida, USA
| | - Jeremy Gaskins
- Department of Bioinformatics and Biostatistics, University of Louisville, Louisville, Kentucky, USA
| | - Steven Levy
- Department of Preventive and Community Dentistry, University of Iowa, Iowa City, Iowa, USA
| | - Somnath Datta
- Department of Biostatistics, University of Florida, Gainesville, Florida, USA
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18
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Quan H, Kang T, Fan C, Lu X, Chen X, Luo X, Wei L. Trial monitoring via a futility criterion for interim results on a count data endpoint and a continuous endpoint. Contemp Clin Trials 2021; 103:106316. [PMID: 33571688 DOI: 10.1016/j.cct.2021.106316] [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: 09/23/2020] [Revised: 02/02/2021] [Accepted: 02/02/2021] [Indexed: 10/22/2022]
Abstract
Assumptions made at design stage regarding the true treatment effect, background event rate and other factors may not always hold. Thus, long-term and large-scale studies may be designed with an interim analysis in order that the trials may be stopped early due to futility to save resource. There are many considerations of trial conducts for this type of trials. In this paper, we use a mock study to illustrate systematically the thinking and procedures for trial monitoring with a futility criterion for the interim results on a count data endpoint and a continuous endpoint. We focus on the discussions of blinded trial monitoring, the probability of meeting the futility criterion, conditional power/probability of success, Bayesian inference, potential delayed treatment effect and subgroup analysis. The experience should be applicable to future studies with similar features.
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Affiliation(s)
- Hui Quan
- Biostatistics and Programming, Sanofi, 55 Corporate Drive, Bridgewater, NJ 08807, United States of America.
| | - Tong Kang
- Biostatistics and Programming, Sanofi, 55 Corporate Drive, Bridgewater, NJ 08807, United States of America
| | - Chunpeng Fan
- Biostatistics and Programming, Sanofi, 55 Corporate Drive, Bridgewater, NJ 08807, United States of America
| | - Xin Lu
- Biostatistics and Programming, Sanofi, 55 Corporate Drive, Bridgewater, NJ 08807, United States of America
| | - Xun Chen
- Biostatistics and Programming, Sanofi, 55 Corporate Drive, Bridgewater, NJ 08807, United States of America
| | - Xiaodong Luo
- Biostatistics and Programming, Sanofi, 55 Corporate Drive, Bridgewater, NJ 08807, United States of America
| | - Lynn Wei
- Biostatistics and Programming, Sanofi, 55 Corporate Drive, Bridgewater, NJ 08807, United States of America
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19
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Kang T, Levy SM, Datta S. Analyzing longitudinal clustered count data with zero inflation: Marginal modeling using the Conway–Maxwell–Poisson distribution. Biom J 2021; 63:761-786. [DOI: 10.1002/bimj.202000061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 09/17/2020] [Accepted: 09/29/2020] [Indexed: 11/11/2022]
Affiliation(s)
- Tong Kang
- Department of Biostatistics University of Florida Gainesville FL USA
| | - Steven M. Levy
- Department of Preventive and Community Dentistry University of Iowa Iowa City IA USA
| | - Somnath Datta
- Department of Biostatistics University of Florida Gainesville FL USA
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20
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Li M, Cui Z, Meng S, Li T, Kang T, Ye Q, Cao M, Bi Y, Meng H. Associations between Dietary Glycemic Index and Glycemic Load Values and Cardiometabolic Risk Factors in Adults: Findings from the China Health and Nutrition Survey. Nutrients 2020; 13:nu13010116. [PMID: 33396964 PMCID: PMC7823666 DOI: 10.3390/nu13010116] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/28/2020] [Accepted: 12/29/2020] [Indexed: 12/14/2022] Open
Abstract
Studies investigating the associations between dietary glycemic index (GI) and glycemic load (GL) values and cardiometabolic risk factors (CMRF) among Chinese populations are strikingly limited. To assess the associations between dietary GI and GL values and CMRF, including dyslipidemia, hyperglycemia, and hyperuricemia in Chinese adults, we extracted data of 7886 apparently healthy adults from the 2009 wave of the China Health and Nutrition Survey. Dietary GI and GL values were calculated using data collected from three consecutive 24 h dietary recalls. Fasting lipid, glucose, and uric acid concentrations were measured and CMRF were defined on the basis of established criteria. There were no significant associations between dietary GI values and CMRF, and analyzing the data by age, sex, body mass index (BMI), and region did not alter these results. Dietary GL values were positively associated with prevalence of hyperuricemia in all participants (Q4 compared with Q1: odds ratio (OR) = 1.46; 95% CI: 1.14, 1.87; p-trend = 0.0030) and prevalence of hypercholesterolemia in participants ≥ 60 years old (Q5 compared with Q1: OR = 1.72; 95% CI: 1.11, 2.68; p-trend < 0.0010). Higher dietary GL but not GI values were associated with increased prevalence of hyperuricemia in apparently healthy Chinese adults and hypercholesterolemia in older Chinese adults. Further studies are required to confirm the public health implication of these findings.
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Affiliation(s)
- Minjuan Li
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518106, China; (M.L.); (Z.C.); (S.M.); (T.L.); (T.K.); (Q.Y.); (M.C.); (Y.B.)
| | - Zhixin Cui
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518106, China; (M.L.); (Z.C.); (S.M.); (T.L.); (T.K.); (Q.Y.); (M.C.); (Y.B.)
| | - Shuangli Meng
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518106, China; (M.L.); (Z.C.); (S.M.); (T.L.); (T.K.); (Q.Y.); (M.C.); (Y.B.)
| | - Ting Li
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518106, China; (M.L.); (Z.C.); (S.M.); (T.L.); (T.K.); (Q.Y.); (M.C.); (Y.B.)
| | - Tong Kang
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518106, China; (M.L.); (Z.C.); (S.M.); (T.L.); (T.K.); (Q.Y.); (M.C.); (Y.B.)
| | - Qi Ye
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518106, China; (M.L.); (Z.C.); (S.M.); (T.L.); (T.K.); (Q.Y.); (M.C.); (Y.B.)
| | - Mengting Cao
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518106, China; (M.L.); (Z.C.); (S.M.); (T.L.); (T.K.); (Q.Y.); (M.C.); (Y.B.)
| | - Yuxin Bi
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518106, China; (M.L.); (Z.C.); (S.M.); (T.L.); (T.K.); (Q.Y.); (M.C.); (Y.B.)
| | - Huicui Meng
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518106, China; (M.L.); (Z.C.); (S.M.); (T.L.); (T.K.); (Q.Y.); (M.C.); (Y.B.)
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Guangzhou 510080, China
- Guangdong Engineering Technology Center of Nutrition Transformation, Guangzhou 510080, China
- Correspondence: ; Tel.: +86-(0)20-8322-6383
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21
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Jung KH, Kim HJ, Park W, Lim MJ, Kang T, Kang MJ, Kim KB, Ahn HS. Incidence, survival, and risk of cardiovascular events in adult inflammatory myopathies in South Korea: a nationwide population-based study. Scand J Rheumatol 2020; 49:323-331. [PMID: 32286141 DOI: 10.1080/03009742.2019.1707281] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVE Epidemiological studies on inflammatory myopathies (IMs) show widely variable results, and studies on Asians are lacking. Despite emerging interest in the cardiovascular disease (CVD) risk associated with IMs, the prevalence of CVD in IM patients and its impact on mortality remain unclear. We conducted a nationwide, population-based study on the incidence, mortality, and associated major CVD events of IMs in the Republic of Korea over 11 years. METHOD Using the nationwide, population-based National Health Insurance claims database and the Rare Intractable Disease registration programme, we estimated incidence, mortality, and CVD occurrence. Survival was examined using the Kaplan-Meier method. Mortality rate in IMs with CVD was analysed by Cox proportional hazards regression. RESULTS There were 3014 incident cases, 640 of whom died during the study period. The mean annual incidence was 7.16/106. Dermatomyositis (DM) and polymyositis (PM) had 5 year survival rates of 76.8% and 79.3%, respectively. Cardiovascular events occurred in 155 patients and 40.6% of IM patients with CVD died. Acute myocardial infarction in men had the highest risk of any CVD event in both DM [standardized incidence ratio (SIR) 4.2, 95% confidence interval (95% CI) 2.4-7.2] and PM (SIR 3.5, 95% CI 1.8-7.0). Haemorrhagic stroke had the highest hazard ratio (HR) in both DM (HR 2.31, 95% CI 1.13-4.70) and PM patients (HR 2.10, 95% CI 1.03-4.27) compared with the general population with CVD. CONCLUSION We found persistently low incidence, poor survival, and high major CVD incidence in IMs, and increased mortality in IMs with CVD.
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Affiliation(s)
- K H Jung
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, Inha University , Incheon, Republic of Korea
| | - H J Kim
- Department of Preventive Medicine, College of Medicine, Korea University , Seoul, Republic of Korea
| | - W Park
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, Inha University , Incheon, Republic of Korea
| | - M J Lim
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, Inha University , Incheon, Republic of Korea
| | - T Kang
- Health Insurance Policy Research Institute, National Health Institute Service , Wonju, Republic of Korea
| | - M J Kang
- Department of Public Health, Graduate School, Korea University , Seoul, Republic of Korea
| | - K-B Kim
- Department of Public Health, Graduate School, Korea University , Seoul, Republic of Korea
| | - H S Ahn
- Department of Preventive Medicine, College of Medicine, Korea University , Seoul, Republic of Korea
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22
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Karnaushenko D, Kang T, Bandari VK, Zhu F, Schmidt OG. 3D Self-Assembled Microelectronic Devices: Concepts, Materials, Applications. Adv Mater 2020; 32:e1902994. [PMID: 31512308 DOI: 10.1002/adma.201902994] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 06/17/2019] [Indexed: 06/10/2023]
Abstract
Modern microelectronic systems and their components are essentially 3D devices that have become smaller and lighter in order to improve performance and reduce costs. To maintain this trend, novel materials and technologies are required that provide more structural freedom in 3D over conventional microelectronics, as well as easier parallel fabrication routes while maintaining compatability with existing manufacturing methods. Self-assembly of initially planar membranes into complex 3D architectures offers a wealth of opportunities to accommodate thin-film microelectronic functionalities in devices and systems possessing improved performance and higher integration density. Existing work in this field, with a focus on components constructed from 3D self-assembly, is reviewed, and an outlook on their application potential in tomorrow's microelectronics world is provided.
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Affiliation(s)
- Daniil Karnaushenko
- Institute for Integrative Nanosciences, Leibniz IFW Dresden, Dresden, 01069, Germany
| | - Tong Kang
- Institute for Integrative Nanosciences, Leibniz IFW Dresden, Dresden, 01069, Germany
| | - Vineeth K Bandari
- Institute for Integrative Nanosciences, Leibniz IFW Dresden, Dresden, 01069, Germany
- Material Systems for Nanoelectronics, Chemnitz University of Technology, Chemnitz, 09107, Germany
- Research Center for Materials, Architectures and Integration of Nanomembranes (MAIN), Rosenbergstraße 6, TU Chemnitz, Chemnitz, 09126, Germany
| | - Feng Zhu
- Institute for Integrative Nanosciences, Leibniz IFW Dresden, Dresden, 01069, Germany
- Material Systems for Nanoelectronics, Chemnitz University of Technology, Chemnitz, 09107, Germany
- Research Center for Materials, Architectures and Integration of Nanomembranes (MAIN), Rosenbergstraße 6, TU Chemnitz, Chemnitz, 09126, Germany
| | - Oliver G Schmidt
- Institute for Integrative Nanosciences, Leibniz IFW Dresden, Dresden, 01069, Germany
- Material Systems for Nanoelectronics, Chemnitz University of Technology, Chemnitz, 09107, Germany
- Research Center for Materials, Architectures and Integration of Nanomembranes (MAIN), Rosenbergstraße 6, TU Chemnitz, Chemnitz, 09126, Germany
- School of Science, TU Dresden, Dresden, 01062, Germany
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23
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Becker C, Karnaushenko D, Kang T, Karnaushenko DD, Faghih M, Mirhajivarzaneh A, Schmidt OG. Self-assembly of highly sensitive 3D magnetic field vector angular encoders. Sci Adv 2019; 5:eaay7459. [PMID: 32064322 PMCID: PMC6989305 DOI: 10.1126/sciadv.aay7459] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 10/28/2019] [Indexed: 05/02/2023]
Abstract
Novel robotic, bioelectronic, and diagnostic systems require a variety of compact and high-performance sensors. Among them, compact three-dimensional (3D) vector angular encoders are required to determine spatial position and orientation in a 3D environment. However, fabrication of 3D vector sensors is a challenging task associated with time-consuming and expensive, sequential processing needed for the orientation of individual sensor elements in 3D space. In this work, we demonstrate the potential of 3D self-assembly to simultaneously reorient numerous giant magnetoresistive (GMR) spin valve sensors for smart fabrication of 3D magnetic angular encoders. During the self-assembly process, the GMR sensors are brought into their desired orthogonal positions within the three Cartesian planes in a simultaneous process that yields monolithic high-performance devices. We fabricated vector angular encoders with equivalent angular accuracy in all directions of 0.14°, as well as low noise and low power consumption during high-speed operation at frequencies up to 1 kHz.
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Affiliation(s)
- Christian Becker
- Institute for Integrative Nanosciences, Institute for Solid State and Materials Research Dresden (Leibniz IFW Dresden), 01069 Dresden, Germany
| | - Daniil Karnaushenko
- Institute for Integrative Nanosciences, Institute for Solid State and Materials Research Dresden (Leibniz IFW Dresden), 01069 Dresden, Germany
- Corresponding author. (D.K.); (O.G.S.)
| | - Tong Kang
- Institute for Integrative Nanosciences, Institute for Solid State and Materials Research Dresden (Leibniz IFW Dresden), 01069 Dresden, Germany
| | - Dmitriy D. Karnaushenko
- Institute for Integrative Nanosciences, Institute for Solid State and Materials Research Dresden (Leibniz IFW Dresden), 01069 Dresden, Germany
| | - Maryam Faghih
- Institute for Integrative Nanosciences, Institute for Solid State and Materials Research Dresden (Leibniz IFW Dresden), 01069 Dresden, Germany
| | - Alaleh Mirhajivarzaneh
- Institute for Integrative Nanosciences, Institute for Solid State and Materials Research Dresden (Leibniz IFW Dresden), 01069 Dresden, Germany
| | - Oliver G. Schmidt
- Institute for Integrative Nanosciences, Institute for Solid State and Materials Research Dresden (Leibniz IFW Dresden), 01069 Dresden, Germany
- Material Systems for Nanoelectronics, Chemnitz University of Technology, 09107 Chemnitz, Germany
- Research Center for Materials, Architectures and Integration of Nanomembranes (MAIN), Rosenbergstraße 6, TU Chemnitz, 09126 Chemnitz, Germany
- Nanophysics, Faculty of Physics, TU Dresden, 01062 Dresden, Germany
- Corresponding author. (D.K.); (O.G.S.)
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Li F, Wang J, Liu L, Qu J, Li Y, Bandari VK, Karnaushenko D, Becker C, Faghih M, Kang T, Baunack S, Zhu M, Zhu F, Schmidt OG. Self-Assembled Flexible and Integratable 3D Microtubular Asymmetric Supercapacitors. Adv Sci (Weinh) 2019; 6:1901051. [PMID: 31637162 PMCID: PMC6794616 DOI: 10.1002/advs.201901051] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 08/03/2019] [Indexed: 05/26/2023]
Abstract
The rapid development of microelectronics has equally rapidly increased the demand for miniaturized energy storage devices. On-chip microsupercapacitors (MSCs), as promising power candidates, possess great potential to complement or replace electrolytic capacitors and microbatteries in various applications. However, the areal capacities and energy densities of the planar MSCs are commonly limited by the low voltage window, the thin layer of the electrode materials and complex fabrication processes. Here, a new-type three-dimensional (3D) tubular asymmetric MSC with small footprint area, high potential window, ultrahigh areal energy density, and long-term cycling stability is fabricated with shapeable materials and photolithographic technologies, which are compatible with modern microelectronic fabrication procedures widely used in industry. Benefiting from the novel architecture, the 3D asymmetric MSC displays an ultrahigh areal capacitance of 88.6 mF cm-2 and areal energy density of 28.69 mW h cm-2, superior to most reported interdigitated MSCs. Furthermore, the 3D tubular MSCs demonstrate remarkable cycling stability and the capacitance retention is up to 91.8% over 12 000 cycles. It is believed that the efficient fabrication methodology can be used to construct various integratable microscale tubular energy storage devices with small footprint area and high performance for miniaturized electronics.
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Affiliation(s)
- Fei Li
- Material Systems for NanoelectronicsChemnitz University of Technology09107ChemnitzGermany
- Center for MaterialsArchitectures and Integration of Nanomembranes (MAIN)Chemnitz University of Technology09126ChemnitzGermany
- Institute for Integrative NanosciencesLeibniz IFW Dresden01069DresdenGermany
| | - Jinhui Wang
- Material Systems for NanoelectronicsChemnitz University of Technology09107ChemnitzGermany
- Center for MaterialsArchitectures and Integration of Nanomembranes (MAIN)Chemnitz University of Technology09126ChemnitzGermany
- Institute for Integrative NanosciencesLeibniz IFW Dresden01069DresdenGermany
| | - Lixiang Liu
- Material Systems for NanoelectronicsChemnitz University of Technology09107ChemnitzGermany
- Center for MaterialsArchitectures and Integration of Nanomembranes (MAIN)Chemnitz University of Technology09126ChemnitzGermany
- Institute for Integrative NanosciencesLeibniz IFW Dresden01069DresdenGermany
| | - Jiang Qu
- Material Systems for NanoelectronicsChemnitz University of Technology09107ChemnitzGermany
- Center for MaterialsArchitectures and Integration of Nanomembranes (MAIN)Chemnitz University of Technology09126ChemnitzGermany
- Institute for Integrative NanosciencesLeibniz IFW Dresden01069DresdenGermany
| | - Yang Li
- Material Systems for NanoelectronicsChemnitz University of Technology09107ChemnitzGermany
- Center for MaterialsArchitectures and Integration of Nanomembranes (MAIN)Chemnitz University of Technology09126ChemnitzGermany
- Institute for Integrative NanosciencesLeibniz IFW Dresden01069DresdenGermany
| | - Vineeth Kumar Bandari
- Material Systems for NanoelectronicsChemnitz University of Technology09107ChemnitzGermany
- Center for MaterialsArchitectures and Integration of Nanomembranes (MAIN)Chemnitz University of Technology09126ChemnitzGermany
- Institute for Integrative NanosciencesLeibniz IFW Dresden01069DresdenGermany
| | - Daniil Karnaushenko
- Institute for Integrative NanosciencesLeibniz IFW Dresden01069DresdenGermany
| | - Christian Becker
- Institute for Integrative NanosciencesLeibniz IFW Dresden01069DresdenGermany
| | - Maryam Faghih
- Institute for Integrative NanosciencesLeibniz IFW Dresden01069DresdenGermany
| | - Tong Kang
- Institute for Integrative NanosciencesLeibniz IFW Dresden01069DresdenGermany
| | - Stefan Baunack
- Institute for Integrative NanosciencesLeibniz IFW Dresden01069DresdenGermany
| | - Minshen Zhu
- Institute for Integrative NanosciencesLeibniz IFW Dresden01069DresdenGermany
| | - Feng Zhu
- Material Systems for NanoelectronicsChemnitz University of Technology09107ChemnitzGermany
- Center for MaterialsArchitectures and Integration of Nanomembranes (MAIN)Chemnitz University of Technology09126ChemnitzGermany
- Institute for Integrative NanosciencesLeibniz IFW Dresden01069DresdenGermany
| | - Oliver G. Schmidt
- Material Systems for NanoelectronicsChemnitz University of Technology09107ChemnitzGermany
- Center for MaterialsArchitectures and Integration of Nanomembranes (MAIN)Chemnitz University of Technology09126ChemnitzGermany
- Institute for Integrative NanosciencesLeibniz IFW Dresden01069DresdenGermany
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25
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Maeng J, Chakraborty B, Geramifard N, Kang T, Rihani RT, Joshi-Imre A, Cogan SF. High-charge-capacity sputtered iridium oxide neural stimulation electrodes deposited using water vapor as a reactive plasma constituent. J Biomed Mater Res B Appl Biomater 2019; 108:880-891. [PMID: 31353822 DOI: 10.1002/jbm.b.34442] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 06/06/2019] [Accepted: 06/28/2019] [Indexed: 11/07/2022]
Abstract
The deposition and properties of sputtered iridium oxide films (SIROFs) using water vapor as a reactive gas constituent are investigated for their potential as high-charge-capacity neural stimulation electrodes. Systematic investigation through a series of optical and electrochemical measurements reveals that the incorporation of water vapor as a reactive gas constituent, along with oxygen, alters the reduction-oxidation (redox) state of the plasma as well as its morphology and the electrochemical characteristics, including the cathodal charge-storage capacity (CSCc ) and charge-injection capacity (CIC), of the SIROF. An apparent optimal O2 :H2 O gas ratio of 1:3 produced SIROF with a CSCc of 182.0 mC cm-2 μm-1 (median, Q1 = 172.5, Q3 = 193.4, n = 15) and a CIC of 3.57 mC cm-2 (median, Q1 = 2.97, Q3 = 4.58, n = 12) for 300-nm-thick films. These values are higher than those obtained with SIROFs deposited using no water vapor by a factor of 2.3 and 1.7 for the CSCc and CIC, respectively. Additionally, the SIROF showed minimal changes in electrochemical characteristics over 109 pulses of constant current stimulation and showed no indication of cytotoxicity toward primary cortical neurons in a cell viability assay. These results warrant investigation of the chronic recording and stimulation capabilities of the SIROF for implantable microelectrode arrays.
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Affiliation(s)
- Jimin Maeng
- Department of Bioengineering, University of Texas at Dallas, Richardson, Texas
| | - Bitan Chakraborty
- Department of Materials Science and Engineering, University of Texas at Dallas, Richardson, Texas
| | - Negar Geramifard
- Department of Bioengineering, University of Texas at Dallas, Richardson, Texas
| | - Tong Kang
- Department of Mechanical Engineering, University of Texas at Dallas, Richardson, Texas
| | - Rashed T Rihani
- Department of Bioengineering, University of Texas at Dallas, Richardson, Texas
| | - Alexandra Joshi-Imre
- Department of Materials Science and Engineering, University of Texas at Dallas, Richardson, Texas
| | - Stuart F Cogan
- Department of Bioengineering, University of Texas at Dallas, Richardson, Texas
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26
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Wang J, Bandari VK, Karnaushenko D, Li Y, Li F, Zhang P, Baunack S, Karnaushenko DD, Becker C, Faghih M, Kang T, Duan S, Zhu M, Zhuang X, Zhu F, Feng X, Schmidt OG. Self-Assembly of Integrated Tubular Microsupercapacitors with Improved Electrochemical Performance and Self-Protective Function. ACS Nano 2019; 13:8067-8075. [PMID: 31274285 DOI: 10.1021/acsnano.9b02917] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Inspired by origami art, we demonstrate a tubular microsupercapacitor (TMSC) by self-assembling two-dimensional (2D) films into a "swiss roll" structure with greatly reduced footprint area. A polymeric framework consisting of swelling hydrogel and polyimide layers ensures excellent ion transport between poly(3,4-ethylenedioxythiophene) (PEDOT)-based electrodes and provides efficient self-protection of the TMSC against external compression up to about 30 MPa. Such TMSCs exhibit an areal capacitance of 82.5 mF cm-2 at 0.3 mA cm-2 with a potential window of 0.8 V, an energy density and power density of 7.73 μWh cm-2 and 17.8 mW cm-2 (0.3 and 45 mA cm-2), and an improved cycling stability with a capacitance retention up to 96.6% over 5000 cycles. Furthermore, as-fabricated TMSC arrays can be detached from their surface and transferred onto target substrates. The connection of devices in parallel/series greatly improves their capacity and voltage output. Overall, our prototype devices and fabrication methodology provide a promising route to create integratable microscale tubular energy storage devices with an efficient self-protection function and high performance for future miniaturized electronics.
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Affiliation(s)
- Jinhui Wang
- Material Systems for Nanoelectronics , Chemnitz University of Technology , 09107 Chemnitz , Germany
- Institute for Integrative Nanosciences , Leibniz IFW Dresden , 01069 Dresden , Germany
- Center for Materials, Architectures, and Integration of Nanomembranes (MAIN) , Chemnitz University of Technology , 09126 Chemnitz , Germany
| | - Vineeth Kumar Bandari
- Material Systems for Nanoelectronics , Chemnitz University of Technology , 09107 Chemnitz , Germany
- Institute for Integrative Nanosciences , Leibniz IFW Dresden , 01069 Dresden , Germany
- Center for Materials, Architectures, and Integration of Nanomembranes (MAIN) , Chemnitz University of Technology , 09126 Chemnitz , Germany
| | - Daniil Karnaushenko
- Institute for Integrative Nanosciences , Leibniz IFW Dresden , 01069 Dresden , Germany
| | - Yang Li
- Material Systems for Nanoelectronics , Chemnitz University of Technology , 09107 Chemnitz , Germany
- Institute for Integrative Nanosciences , Leibniz IFW Dresden , 01069 Dresden , Germany
- Center for Materials, Architectures, and Integration of Nanomembranes (MAIN) , Chemnitz University of Technology , 09126 Chemnitz , Germany
| | - Fei Li
- Material Systems for Nanoelectronics , Chemnitz University of Technology , 09107 Chemnitz , Germany
- Institute for Integrative Nanosciences , Leibniz IFW Dresden , 01069 Dresden , Germany
- Center for Materials, Architectures, and Integration of Nanomembranes (MAIN) , Chemnitz University of Technology , 09126 Chemnitz , Germany
| | - Panpan Zhang
- Center for Advancing Electronics Dresden (CFAED) and Department of Chemistry and Food Chemnistry , Dresden University of Technology , 01062 Dresden , Germany
| | - Stefan Baunack
- Institute for Integrative Nanosciences , Leibniz IFW Dresden , 01069 Dresden , Germany
| | | | - Christian Becker
- Institute for Integrative Nanosciences , Leibniz IFW Dresden , 01069 Dresden , Germany
| | - Maryam Faghih
- Institute for Integrative Nanosciences , Leibniz IFW Dresden , 01069 Dresden , Germany
| | - Tong Kang
- Institute for Integrative Nanosciences , Leibniz IFW Dresden , 01069 Dresden , Germany
| | - Shengkai Duan
- Material Systems for Nanoelectronics , Chemnitz University of Technology , 09107 Chemnitz , Germany
- Institute for Integrative Nanosciences , Leibniz IFW Dresden , 01069 Dresden , Germany
- Center for Materials, Architectures, and Integration of Nanomembranes (MAIN) , Chemnitz University of Technology , 09126 Chemnitz , Germany
| | - Minshen Zhu
- Institute for Integrative Nanosciences , Leibniz IFW Dresden , 01069 Dresden , Germany
| | - Xiaodong Zhuang
- Center for Advancing Electronics Dresden (CFAED) and Department of Chemistry and Food Chemnistry , Dresden University of Technology , 01062 Dresden , Germany
| | - Feng Zhu
- Material Systems for Nanoelectronics , Chemnitz University of Technology , 09107 Chemnitz , Germany
- Institute for Integrative Nanosciences , Leibniz IFW Dresden , 01069 Dresden , Germany
- Center for Materials, Architectures, and Integration of Nanomembranes (MAIN) , Chemnitz University of Technology , 09126 Chemnitz , Germany
| | - Xinliang Feng
- Center for Advancing Electronics Dresden (CFAED) and Department of Chemistry and Food Chemnistry , Dresden University of Technology , 01062 Dresden , Germany
| | - Oliver G Schmidt
- Material Systems for Nanoelectronics , Chemnitz University of Technology , 09107 Chemnitz , Germany
- Institute for Integrative Nanosciences , Leibniz IFW Dresden , 01069 Dresden , Germany
- Center for Materials, Architectures, and Integration of Nanomembranes (MAIN) , Chemnitz University of Technology , 09126 Chemnitz , Germany
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Liu XC, Li H, Kang T, Zhu ZY, Liu YL, Sun HQ, Pan LC. The effect of fermentation conditions on the structure and anti-tumor activity of polysaccharides from Cordyceps gunnii. RSC Adv 2019; 9:18205-18216. [PMID: 35515207 PMCID: PMC9064820 DOI: 10.1039/c9ra01202h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 05/19/2019] [Indexed: 11/21/2022] Open
Abstract
This study investigates the effect of fermentation conditions on the structure and anti-tumor activity of intracellular polysaccharides (IPS) of Cordyceps gunnii (C. gunnii) in submerged fermentation. The environmental and nutritional conditions are determined in a shaker flask by a single factor test. The inhibition of IPS on S180 cells was as an optimization index. The results show that the optimal fermentation conditions of C. gunnii are an initial pH value of 6, a temperature of 25 °C, a rotation speed of 150 rpm, 4% glucose, and 1.0% peptone. Under these conditions, the macro molecular weight (M w) polysaccharide content and anti-tumor activity of IPS are significantly higher than that in the basal culture medium. GC, HPGPC, periodate oxidation-Smith degradation, NMR, and FT-IR determine the structural characteristics of CPS-JC and CPS-YH (pure IPS cultured in basal culture medium and optimal culture medium, respectively). The results indicate that CPS-JC is mainly composed of α-d-glucans, whereas CPS-YH primarily contain α-d-glucans with a trace amount of β-d-glucans.
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Affiliation(s)
- Xiao-Cui Liu
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology Tianjin 300457 PR China +86 22 60601437 +86 22 60601437
- Key Laboratory of Food Bio-technology, School of Food and Bioengineering, Xihua University Chengdu 610039 P. R. China
| | - Hongran Li
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology Tianjin 300457 PR China +86 22 60601437 +86 22 60601437
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, Tianjin University of Science and Technology Tianjin 300457 PR China
- College of Food Science and Biotechnology, Tianjin University of Science and Technology Tianjin 300457 PR China
| | - Tong Kang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology Tianjin 300457 PR China +86 22 60601437 +86 22 60601437
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, Tianjin University of Science and Technology Tianjin 300457 PR China
- College of Food Science and Biotechnology, Tianjin University of Science and Technology Tianjin 300457 PR China
| | - Zhen-Yuan Zhu
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology Tianjin 300457 PR China +86 22 60601437 +86 22 60601437
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, Tianjin University of Science and Technology Tianjin 300457 PR China
- College of Food Science and Biotechnology, Tianjin University of Science and Technology Tianjin 300457 PR China
| | - Ying-Liang Liu
- School of Life Sciences, Guizhou Normal University Guiyang Guizhou 550001 China
| | - Hui-Qing Sun
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology Tianjin 300457 PR China +86 22 60601437 +86 22 60601437
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, Tianjin University of Science and Technology Tianjin 300457 PR China
- College of Food Science and Biotechnology, Tianjin University of Science and Technology Tianjin 300457 PR China
| | - Li-Chao Pan
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology Tianjin 300457 PR China +86 22 60601437 +86 22 60601437
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, Tianjin University of Science and Technology Tianjin 300457 PR China
- College of Food Science and Biotechnology, Tianjin University of Science and Technology Tianjin 300457 PR China
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28
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Reeder JT, Kang T, Rains S, Voit W. 3D, Reconfigurable, Multimodal Electronic Whiskers via Directed Air Assembly. Adv Mater 2018; 30:1706733. [PMID: 29357119 DOI: 10.1002/adma.201706733] [Citation(s) in RCA: 11] [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: 11/17/2017] [Revised: 12/08/2017] [Indexed: 05/28/2023]
Abstract
A batch-assembly technique for forming 3D electronics on shape memory polymer substrates is demonstrated and is used to create dense, highly sensitive, multimodal arrays of electronic whiskers. Directed air flow at temperatures above the substrate's glass transition temperature transforms planar photolithographically defined resistive sensors from 2D precursors into shape-tunable, deterministic 3D assemblies. Reversible 3D assembly and flattening is achieved by exploiting the shape memory properties of the substrate, enabling context-driven shape reconfiguration to isolate/enhance specific sensing modes. In particular, measurement schemes and device configurations are introduced that allow for the sensing of temperature, stiffness, contact force, proximity, and surface texture and roughness. The assemblies offer highly spatiotemporally resolved, wide-range measurements of surface topology (50 nm to 500 µm), material stiffness (200 kPa to 7.5 GPa), and temperature (0-100 °C), with response times of <250 µs. The development of a scalable process for 3D assembly of reconfigurable electronic sensors, as well as the large breadth and sensitivity of complex sensing modes demonstrated, has applications in the growing fields of 3D assembly, electronic skin, and human-machine interfaces.
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Affiliation(s)
- Jonathan T Reeder
- Department of Materials Science and Engineering, The University of Texas at Dallas, 800 W. Campbell Road, Richardson, TX, 75080-3021, USA
| | - Tong Kang
- Department of Mechanical Engineering, The University of Texas at Dallas, 800 W. Campbell Road, Richardson, TX, 75080-3021, USA
| | - Sarah Rains
- Department of Bioengineering, The University of Texas at Dallas, 800 W. Campbell Road, Richardson, TX, 75080-3021, USA
| | - Walter Voit
- Department of Materials Science and Engineering, The University of Texas at Dallas, 800 W. Campbell Road, Richardson, TX, 75080-3021, USA
- Department of Mechanical Engineering, The University of Texas at Dallas, 800 W. Campbell Road, Richardson, TX, 75080-3021, USA
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Kang T, Qian S, Smith GS, Do C, Heller WT. Small-angle neutron scattering study of a dense microemulsion system formed with an ionic liquid. Soft Matter 2017; 13:7154-7160. [PMID: 28895963 DOI: 10.1039/c7sm01516j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Mixtures of water, octane and 1-octanol with 1-tetradecyl-3-methylimidazolium chloride (C14MIM·Cl), often referred to as a surface active ionic liquid (SAIL), form water-in-oil microemulsions that have potential application as extraction media for various metal ions. Here, we present a structural study by small-angle neutron scattering (SANS) of dense microemulsions formed by surfactant-rich mixtures of these four compounds to understand how the SAIL can be used to tune the structures and properties of the microemulsions. The SANS experiments revealed that the microemulsions formed are composed of two phases, a water-in-oil microemulsion and a bicontinuous microemulsion, which becomes the dominant phase at high surfactant concentration. In this concentration regime, the surfactant film becomes more rigid, having a higher bending modulus that results from the parallel stacking of the imidazolium ring of the SAIL. At lower surfactant concentrations, the molecular packing of the SAIL does not change with the water content of the microemulsion. The results presented here correlate well with previously observed changes in the interaction between the IL cation and metal ions (Y. Tong, L. Han and Y. Yang, Ind. Eng. Chem. Res., 2012, 51, 16438-16443), while the capacity of the microemulsion system for water remains high enough for using the system as an extraction medium.
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Affiliation(s)
- T Kang
- Biology and Soft Matter Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
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Omer T, Mailhot T, Berona K, Swadron S, Kang T. 337 Accuracy of Landmark-Guided Glenohumeral Intra-Articular Injections in Patients With Anterior Shoulder Dislocations. Ann Emerg Med 2017. [DOI: 10.1016/j.annemergmed.2017.07.408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Simon DM, Charkhkar H, St. John C, Rajendran S, Kang T, Reit R, Arreaga-Salas D, McHail DG, Knaack GL, Sloan A, Grasse D, Dumas TC, Rennaker RL, Pancrazio JJ, Voit WE. Design and demonstration of an intracortical probe technology with tunable modulus. J Biomed Mater Res A 2017; 105:159-168. [PMID: 27615364 PMCID: PMC9934867 DOI: 10.1002/jbm.a.35896] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [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: 04/24/2016] [Revised: 07/22/2016] [Accepted: 09/07/2016] [Indexed: 01/06/2023]
Abstract
Intracortical probe technology, consisting of arrays of microelectrodes, offers a means of recording the bioelectrical activity from neural tissue. A major limitation of existing intracortical probe technology pertains to limited lifetime of 6 months to a year of recording after implantation. A major contributor to device failure is widely believed to be the interfacial mechanical mismatch of conventional stiff intracortical devices and the surrounding brain tissue. We describe the design, development, and demonstration of a novel functional intracortical probe technology that has a tunable Young's modulus from ∼2 GPa to ∼50 MPa. This technology leverages advances in dynamically softening materials, specifically thiol-ene/acrylate thermoset polymers, which exhibit minimal swelling of < 3% weight upon softening in vitro. We demonstrate that a shape memory polymer-based multichannel intracortical probe can be fabricated, that the mechanical properties are stable for at least 2 months and that the device is capable of single unit recordings for durations up to 77 days in vivo. This novel technology, which is amenable to processes suitable for manufacturing via standard semiconductor fabrication techniques, offers the capability of softening in vivo to reduce the tissue-device modulus mismatch to ultimately improve long term viability of neural recordings. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 159-168, 2017.
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Affiliation(s)
- Dustin M. Simon
- Department of Materials Science and Engineering, The University of Texas at Dallas, Richardson, Texas 75030
| | - Hamid Charkhkar
- Department of Electrical and Computer Engineering, George Mason University, Fairfax, Virginia 22030
| | - Conan St. John
- Department of Bioengineering, The University of Texas at Dallas, Richardson, Texas 75030
| | - Sakthi Rajendran
- Department of Bioengineering, The University of Texas at Dallas, Richardson, Texas 75030
| | - Tong Kang
- Department of Bioengineering, The University of Texas at Dallas, Richardson, Texas 75030
| | - Radu Reit
- Department of Bioengineering, The University of Texas at Dallas, Richardson, Texas 75030
| | - David Arreaga-Salas
- Department of Bioengineering, The University of Texas at Dallas, Richardson, Texas 75030
| | - Daniel G. McHail
- Department of Molecular Neuroscience, The Krasnow Institute for Advanced Study, George Mason University, Fairfax, Virginia 22030
| | - Gretchen L. Knaack
- Department of Molecular Neuroscience, The Krasnow Institute for Advanced Study, George Mason University, Fairfax, Virginia 22030
| | - Andrew Sloan
- Department of Bioengineering, The University of Texas at Dallas, Richardson, Texas 75030
| | - Dane Grasse
- Department of Bioengineering, The University of Texas at Dallas, Richardson, Texas 75030
| | - Theodore C. Dumas
- Department of Molecular Neuroscience, The Krasnow Institute for Advanced Study, George Mason University, Fairfax, Virginia 22030
| | - Robert L. Rennaker
- Department of Bioengineering, The University of Texas at Dallas, Richardson, Texas 75030
| | - Joseph J. Pancrazio
- Department of Bioengineering, The University of Texas at Dallas, Richardson, Texas 75030,Department of Bioengineering, George Mason University, Fairfax, Virginia 22030
| | - Walter E. Voit
- Department of Materials Science and Engineering, The University of Texas at Dallas, Richardson, Texas 75030,Department of Bioengineering, The University of Texas at Dallas, Richardson, Texas 75030
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Kang T, Berona K, Park E, Fredericks A, Chilstrom M, Mailhot T, Inaba K, Burner E. 355 Reliability of the Abdominal Exam in Blunt Trauma Patients With Altered Mental Status. Ann Emerg Med 2016. [DOI: 10.1016/j.annemergmed.2016.08.372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Lee W, Song J, Son JH, Gutierrez MP, Kang T, Kim D, Lee LP. Solar optics-based active panel for solar energy storage and disinfection of greywater. Biomicrofluidics 2016; 10:054120. [PMID: 27822328 PMCID: PMC5085975 DOI: 10.1063/1.4965855] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 10/10/2016] [Indexed: 06/02/2023]
Abstract
Smart city and innovative building strategies are becoming increasingly more necessary because advancing a sustainable building system is regarded as a promising solution to overcome the depleting water and energy. However, current sustainable building systems mainly focus on energy saving and miss a holistic integration of water regeneration and energy generation. Here, we present a theoretical study of a solar optics-based active panel (SOAP) that enables both solar energy storage and photothermal disinfection of greywater simultaneously. Solar collector efficiency of energy storage and disinfection rate of greywater have been investigated. Due to the light focusing by microlens, the solar collector efficiency is enhanced from 25% to 65%, compared to that without the microlens. The simulation of greywater sterilization shows that 100% disinfection can be accomplished by our SOAP for different types of bacteria including Escherichia coli. Numerical simulation reveals that our SOAP as a lab-on-a-wall system can resolve the water and energy problem in future sustainable building systems.
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Affiliation(s)
- W Lee
- Department of Mechanical Engineering, Sogang University , 04107 Seoul, South Korea
| | | | - J H Son
- Departments of Bioengineering, Electrical Engineering and Computer Science, and Biophysics Program, University of California , Berkeley, California 94270, USA
| | - M P Gutierrez
- Department of Architecture, University of California , Berkeley, California 94270, USA
| | - T Kang
- Department of Chemical and Biomolecular Engineering, Sogang University , 04107 Seoul, South Korea
| | - D Kim
- Department of Mechanical Engineering, Sogang University , 04107 Seoul, South Korea
| | - L P Lee
- Departments of Bioengineering, Electrical Engineering and Computer Science, and Biophysics Program, University of California , Berkeley, California 94270, USA
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Reit R, Abitz H, Reddy N, Parker S, Wei A, Aragon N, Ho M, Weittenhiller A, Kang T, Ecker M, Voit WE. Thiol-epoxy/maleimide ternary networks as softening substrates for flexible electronics. J Mater Chem B 2016; 4:5367-5374. [PMID: 32263460 DOI: 10.1039/c6tb01082b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Softening microelectrode arrays, or flexible bioelectronic systems which can dynamically change modulus under the application of an external stimulus such as heat or electromagnetic radiation, have been of significant interest in the literature within the previous decade. Through their ability to actively soften in vivo, these devices have shown the capacity to attenuate the neuronal damage associated with insertion of rigid microelectrode arrays into soft tissue. Thiol-click substrates specifically have shown particularly impressive results for fabricating devices requiring small-scale, high-performance electronics for neural recording. However, previous attempts to engineer increasingly lower-modulus substrates for these devices have failed due to the fundamental chemistries' (the thioether linkage) flexibility. This failure has led to substrates without sufficient mechanical rigidity for penetrating soft tissue at physiological temperatures, or sufficient softening capacity to reduce the mechanical mismatch between soft tissue and implantable device. In this work, a ternary thiol-epoxy/maleimide network is investigated as a potential substrate materials space in which the degree of softening can be modulated without sacrificing the mechanical rigidity at physiological temperatures. Using these networks as platforms for the microfabrication of electrode arrays, example implantable intracortical microelectrode arrays are fabricated on both thiol-epoxy and thiol-epoxy/maleimide networks to demonstrate the insertion capacity of microelectrode arrays on the ternary polymer networks.
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Affiliation(s)
- Radu Reit
- Department of Bioengineering, The University of Texas at Dallas, Richardson, TX 75030, USA.
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Park JE, Lee HS, Cho HD, Kang T. AB0978 The Association of Power Doppler Signal Grades with The Serum Inflammatory Marker Level. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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36
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Lee H, Park J, Park C, Kang T. FRI0242 Value of Ultrasound in Carpal Tunnel Syndrome: Useful Method for Treatment and Therapeutic Response after Steroid Injection. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3936] [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: 11/04/2022]
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37
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Huang SY, Huang JJ, Kang T, Diao DF, Duan YZ. Coating NiTi archwires with diamond-like carbon films: reducing fluoride-induced corrosion and improving frictional properties. J Mater Sci Mater Med 2013; 24:2287-92. [PMID: 23793493 DOI: 10.1007/s10856-013-4988-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2013] [Accepted: 06/14/2013] [Indexed: 05/27/2023]
Abstract
This study aims to coat diamond-like carbon (DLC) films onto nickel-titanium (NiTi) orthodontic archwires. The film protects against fluoride-induced corrosion and will improve orthodontic friction. 'Mirror-confinement-type electron cyclotron resonance plasma sputtering' was utilized to deposit DLC films onto NiTi archwires. The influence of a fluoride-containing environment on the surface topography and the friction force between the brackets and archwires were investigated. The results confirmed the superior nature of the DLC coating, with less surface roughness variation for DLC-coated archwires after immersion in a high fluoride ion environment. Friction tests also showed that applying a DLC coating significantly decreased the fretting wear and the coefficient of friction, both in ambient air and artificial saliva. Thus, DLC coatings are recommended to reduce fluoride-induced corrosion and improve orthodontic friction.
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Affiliation(s)
- S Y Huang
- Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, 145 West Changle Rd., Xi'an, 710032, China
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Bae S, Kim YG, Choi J, Hong J, Lee S, Kang T, Jeon H, Hong K, Kim E, Kwak A, Lee CK, Yoo B, Park YB, Song EY, Kim S. Elevated interleukin-32 expression in granulomatosis with polyangiitis. Rheumatology (Oxford) 2012; 51:1979-88. [DOI: 10.1093/rheumatology/kes163] [Citation(s) in RCA: 16] [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: 12/17/2022] Open
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Dong C, Wu Y, Wang Y, Wang C, Kang T, Rychahou PG, Chi YI, Evers BM, Zhou BP. Interaction with Suv39H1 is critical for Snail-mediated E-cadherin repression in breast cancer. Oncogene 2012; 32:1351-62. [PMID: 22562246 PMCID: PMC3703513 DOI: 10.1038/onc.2012.169] [Citation(s) in RCA: 154] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Expression of E-cadherin, a hallmark of epithelial-mesenchymal transition (EMT), is often lost due to promoter DNA methylation in basal-like breast cancer (BLBC), which contributes to the metastatic advantage of this disease; however, the underlying mechanism remains unclear. Here, we identified that Snail interacted with Suv39H1 (suppressor of variegation 3-9 homolog 1), a major methyltransferase responsible for H3K9me3 that intimately links to DNA methylation. We demonstrated that the SNAG domain of Snail and the SET domain of Suv39H1 were required for their mutual interactions. We found that H3K9me3 and DNA methylation on the E-cadherin promoter were higher in BLBC cell lines. We showed that Snail interacted with Suv39H1 and recruited it to the E-cadherin promoter for transcriptional repression. Knockdown of Suv39H1 restored E-cadherin expression by blocking H3K9me3 and DNA methylation and resulted in the inhibition of cell migration, invasion and metastasis of BLBC. Our study not only reveals a critical mechanism underlying the epigenetic regulation of EMT, but also paves a way for the development of new treatment strategies against this disease.
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Affiliation(s)
- C Dong
- Department of Molecular and Cellular Biochemistry, The University of Kentucky College of Medicine, Lexington, KY, USA
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40
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Alvarez R, Chen C, Hung C, Kang T, Lee S, Wu T. Enhancement of the antigen-specific T cell immune responses and therapeutic antitumor effects generated by therapeutic HPV DNA vaccine by histone deacetylase inhibitor. Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2011.12.335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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41
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Kang S, Kim S, Kang T, Yoon C, Ko S, Hur M, Lee H, Seol C. 528 Short-term Outcomes of Immediate Breast Reconstruction After Mastectomy Using Implant or Tissue Expander in Patients with Breast Cancer. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)70593-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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42
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Kloepfer K, Vrtis R, Pappas T, Kang T, Lee W, Evans M, Gangnon R, Lemanske R, Gern J. Bacterial Detection In The Fall Is Associated With Increased Viral Respiratory Infections. J Allergy Clin Immunol 2012. [DOI: 10.1016/j.jaci.2011.12.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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43
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Nguyen D, Alavi MV, Kim KY, Kang T, Scott RT, Noh YH, Lindsey JD, Wissinger B, Ellisman MH, Weinreb RN, Perkins GA, Ju WK. A new vicious cycle involving glutamate excitotoxicity, oxidative stress and mitochondrial dynamics. Cell Death Dis 2011; 2:e240. [PMID: 22158479 PMCID: PMC3252734 DOI: 10.1038/cddis.2011.117] [Citation(s) in RCA: 152] [Impact Index Per Article: 11.7] [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] [Indexed: 01/20/2023]
Abstract
Glutamate excitotoxicity leads to fragmented mitochondria in neurodegenerative diseases, mediated by nitric oxide and S-nitrosylation of dynamin-related protein 1, a mitochondrial outer membrane fission protein. Optic atrophy gene 1 (OPA1) is an inner membrane protein important for mitochondrial fusion. Autosomal dominant optic atrophy (ADOA), caused by mutations in OPA1, is a neurodegenerative disease affecting mainly retinal ganglion cells (RGCs). Here, we showed that OPA1 deficiency in an ADOA model influences N-methyl-D-aspartate (NMDA) receptor expression, which is involved in glutamate excitotoxicity and oxidative stress. Opa1(enu/+) mice show a slow progressive loss of RGCs, activation of astroglia and microglia, and pronounced mitochondrial fission in optic nerve heads as found by electron tomography. Expression of NMDA receptors (NR1, 2A, and 2B) in the retina of Opa1(enu/+) mice was significantly increased as determined by western blot and immunohistochemistry. Superoxide dismutase 2 (SOD2) expression was significantly decreased, the apoptotic pathway was activated as Bax was increased, and phosphorylated Bad and BcL-xL were decreased. Our results conclusively demonstrate that not only glutamate excitotoxicity and/or oxidative stress alters mitochondrial fission/fusion, but that an imbalance in mitochondrial fission/fusion in turn leads to NMDA receptor upregulation and oxidative stress. Therefore, we propose a new vicious cycle involved in neurodegeneration that includes glutamate excitotoxicity, oxidative stress, and mitochondrial dynamics.
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Affiliation(s)
- D Nguyen
- The Sophie and Arthur Brody Laboratory for Optic Nerve Biology, Hamilton Glaucoma Center, Department of Ophthalmology, University of California San Diego, La Jolla, CA, USA
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Hwang E, Jung S, Kang T, Kwon D, Park K, Ryu S. UP-03.145 T2 Ureteral Tumor and Severe Hydronephrosis: Poor Prognostic Factors in Upper Urinary Tract Transitional Cell Carcinoma. Urology 2011. [DOI: 10.1016/j.urology.2011.07.1234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Song HC, Cho S, Kang T, Hodgkiss WS, Preston JR. Long-range acoustic communication in deep water using a towed array. J Acoust Soc Am 2011; 129:EL71-EL75. [PMID: 21428470 DOI: 10.1121/1.3554707] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
In September 2010 a long-range acoustic communication (LRAC10) experiment was carried out in deep water off the Southern California Coast. The experiment involved two mobile components: (1) a source towed slowly at a speed of 2-3 knots at ∼75-m depth and (2) a horizontal line array towed at 3.5 knots at a depth of ∼200 m. Phase-coherent communication sequences were transmitted in the frequency band of 200-300 Hz at various ranges (100-700 km). Initial analysis of the LRAC10 data demonstrates that an information rate of 50 bits/s can be achieved over ∼550-km range using quadrature-phase shift-keying (QPSK) modulation and error-correction coding combined with beamforming.
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Affiliation(s)
- H C Song
- Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093-0238, USA.
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Holstein GR, Friedrich VL, Kang T, Kukielka E, Martinelli GP. Direct projections from the caudal vestibular nuclei to the ventrolateral medulla in the rat. Neuroscience 2011; 175:104-17. [PMID: 21163335 PMCID: PMC3029471 DOI: 10.1016/j.neuroscience.2010.12.011] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2010] [Revised: 11/23/2010] [Accepted: 12/08/2010] [Indexed: 02/07/2023]
Abstract
While the basic pathways mediating vestibulo-ocular, -spinal, and -collic reflexes have been described in detail, little is known about vestibular projections to central autonomic sites. Previous studies have primarily focused on projections from the caudal vestibular region to solitary, vagal and parabrachial nuclei, but have noted a sparse innervation of the ventrolateral medulla. Since a direct pathway from the vestibular nuclei to the rostral ventrolateral medulla would provide a morphological substrate for rapid modifications in blood pressure, heart rate and respiration with changes in posture and locomotion, the present study examined anatomical evidence for this pathway using anterograde and retrograde tract tracing and immunofluorescence detection in brainstem sections of the rat medulla. The results provide anatomical evidence for direct pathways from the caudal vestibular nuclear complex to the rostral and caudal ventrolateral medullary regions. The projections are conveyed by fine and highly varicose axons that ramify bilaterally, with greater terminal densities present ipsilateral to the injection site and more rostrally in the ventrolateral medulla. In the rostral ventrolateral medulla, these processes are highly branched and extremely varicose, primarily directed toward the somata and proximal dendrites of non-catecholaminergic neurons, with minor projections to the distal dendrites of catecholaminergic cells. In the caudal ventrolateral medulla, the axons of vestibular nucleus neurons are more modestly branched with fewer varicosities, and their endings are contiguous with both the perikarya and dendrites of catecholamine-containing neurons. These data suggest that vestibular neurons preferentially target the rostral ventrolateral medulla, and can thereby provide a morphological basis for a short latency vestibulo-sympathetic pathway.
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Affiliation(s)
- G R Holstein
- Department of Neurology, Mount Sinai School of Medicine, New York, NY 10029, USA.
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Xu S, Feng Z, Zhang M, Wu Y, Sang Y, Xu H, Lv X, Hu K, Cao J, Zhang R, Chen L, Liu M, Yun JP, Zeng YX, Kang T. hSSB1 binds and protects p21 from ubiquitin-mediated degradation and positively correlates with p21 in human hepatocellular carcinomas. Oncogene 2011; 30:2219-29. [PMID: 21242961 DOI: 10.1038/onc.2010.596] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Downregulation of hSSB1, a single-stranded DNA-binding protein, causes increased radiosensitivity, defective checkpoint activation and genomic instability. However, the mechanisms of hSSB1 function in these responses remain to be uncovered. Here, we present evidence that hSSB1 directly binds p21 and this interaction may prevent p21 from ubiquitin-mediated degradation. Furthermore, both promotion of the G1/S transition and abrogation of the G2/M checkpoints induced by hSSB1 knockdown are partially dependent on p21. Most importantly, hSSB1 and p21 levels are positively correlated in human hepatocellular carcinomas (HCC), as determined by immunostaining. Therefore, hSSB1 may positively modulate p21 to regulate cell cycle progression and DNA damage response, implicating hSSB1 as a novel, promising therapeutic target for cancers such as HCC.
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Affiliation(s)
- S Xu
- State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, China
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Ryu S, Kim S, Hwang E, Im C, Oh K, Jung S, Kang T, Kwon D, Park K. UP-1.26: The role of alpha 1(A) Adrenoceptor antagonist tamsulosin for the treatment of patients with lower urinary tract symptoms in women: the effect of nocturia and sleep quality. Urology 2010. [DOI: 10.1016/j.urology.2010.07.159] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Smith SD, Bolwell BJ, Rybicki LA, Kang T, Dean R, Advani A, Thakkar S, Sobecks R, Kalaycio M, Pohlman B, Sweetenham JW. Comparison of outcomes after auto-SCT for patients with relapsed diffuse large B-cell lymphoma according to previous therapy with rituximab. Bone Marrow Transplant 2010; 46:262-6. [DOI: 10.1038/bmt.2010.95] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Huisden CM, Adesogan AT, Gaskin JM, Courtney CH, Raji AM, Kang T. Effect of feeding Mucuna pruriens on helminth parasite infestation in lambs. J Ethnopharmacol 2010; 127:669-673. [PMID: 19969060 DOI: 10.1016/j.jep.2009.12.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2009] [Revised: 11/24/2009] [Accepted: 12/01/2009] [Indexed: 05/28/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Mucuna pruriens is a tropical legume anecdotally reputed to have anthelmintic properties. This study was conducted to examine the validity of such claims. AIM OF THE STUDY The aim of this study was to determine if ingestion of Mucuna seeds reduces helminth parasite infestation in lambs. MATERIALS AND METHODS Thirty-six Dorper x Katahdin ram lambs were assigned to three treatments, a cottonseed meal based control diet, a diet in which Mucuna replaced cottonseed meal and the control diet with levamisole (7.5mg/kg body weight) administration. All diets were isonitrogenous and isocaloric. The 12 lambs in each treatment were assigned randomly to 4 pens, each containing 3 lambs. Lambs were trickle infected three times per week by gavage with infectious Haemonchus contortus larvae (2000 larvae/lamb) for 3 weeks. RESULTS Levamisole treatment decreased fecal egg counts by 87% and abomasal worm counts by 83%. Mucuna intake did not statistically affect fecal egg counts or abomasal worm counts, though numerical (P>0.10) reductions of 7.4% and 18.1%, respectively were evident. Anemia indicators, feed intake, and lamb growth were unaffected by treatment. CONCLUSIONS Levamisole reduced the Haemonchus parasite burden in lambs significantly but feeding Mucuna reduced the burden by levels unlikely to eliminate the clinical effects of parasitism.
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Affiliation(s)
- C M Huisden
- Department of Animal Sciences, Institute of Food and Agricultural Science, University of Florida, Gainesville, FL 32611, USA
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