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Zhang YH, Jiao'e P, Chen L, Zhou WX, Zhan H, Chen LQ, Lin J, Wen H. New radiofrequency ablation procedure for selective reduction in complicated monochorionic twin or triplet pregnancy using multistep, incremental expansion technique. Ultrasound Obstet Gynecol 2024; 63:522-528. [PMID: 37767731 DOI: 10.1002/uog.27508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 09/09/2023] [Accepted: 09/20/2023] [Indexed: 09/29/2023]
Abstract
OBJECTIVE Radiofrequency ablation (RFA) is the preferred approach for selective reduction in complex monochorionic (MC) multiple pregnancies owing to the ease of operation and minimal invasiveness. To optimize the RFA technique and reduce the risk of adverse pregnancy outcome resulting from the heat-sink effect of RFA therapy, we used an innovative RFA method, in which an electrode needle was expanded incrementally and stepwise. This study aimed to assess the efficacy and safety profile of this novel multistep incremental expansion RFA method for selective fetal reduction in MC twin and triplet pregnancies. METHODS This was a single-center retrospective cohort study of all MC multiple pregnancies undergoing RFA between March 2016 and October 2022 at our center. The multistep RFA technique involved the use of an expandable needle, which was gradually expanded during the RFA procedure until cessation of umbilical cord blood flow was achieved. The needle used for the single-step RFA method was fully extended from the start of treatment. RESULTS In total, 132 MC multiple pregnancies underwent selective reduction using RFA, including 50 cases undergoing multistep RFA and 82 cases undergoing single-step RFA. The overall survival rates were not significantly different between the multistep and single-step RFA groups (81.1% vs 72.3%; P = 0.234). Similarly, the rates of preterm prelabor rupture of the membranes within 2 weeks after RFA, procedure-related complications, spontaneous preterm delivery and pathological findings on cranial ultrasound, as well as gestational age at delivery and birth weight, did not differ between the two groups. However, there was a trend towards a prolonged procedure-to-delivery interval following multistep RFA compared with single-step RFA (median, 109 vs 99 days; P = 0.377). Moreover, the fetal loss rate within 2 weeks after RFA in the multistep RFA group was significantly lower than that in the single-step RFA group (10.0% vs 24.4%; P = 0.041). The median ablation time was shorter (5.3 vs 7.8 min; P < 0.001) and the median ablation energy was lower (10.2 vs 18.0 kJ; P < 0.001) in multistep compared with single-step RFA. There were no significant differences in neonatal outcomes following multistep vs single-step RFA. CONCLUSIONS Overall survival rates were similar between the two RFA methods. However, the multistep RFA technique was associated with a lower risk of fetal loss within 2 weeks after RFA. The multistep RFA technique required significantly less ablation energy and a shorter ablation time compared with single-step RFA in selective fetal reduction of MC twin and triplet pregnancies. Additionally, there was a trend towards a prolonged procedure-to-delivery interval with the multistep RFA technique. © 2023 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- Y-H Zhang
- Zhejiang University School of Medicine, Women's Hospital, Hangzhou, Zhejiang, People's Republic of China
| | - P Jiao'e
- Zhejiang University School of Medicine, Women's Hospital, Hangzhou, Zhejiang, People's Republic of China
| | - L Chen
- Zhejiang University School of Medicine, Women's Hospital, Hangzhou, Zhejiang, People's Republic of China
| | - W-X Zhou
- Zhejiang University School of Medicine, Women's Hospital, Hangzhou, Zhejiang, People's Republic of China
| | - H Zhan
- Zhejiang University School of Medicine, Women's Hospital, Hangzhou, Zhejiang, People's Republic of China
| | - L-Q Chen
- Zhejiang University School of Medicine, Women's Hospital, Hangzhou, Zhejiang, People's Republic of China
| | - J Lin
- Zhejiang University School of Medicine, Women's Hospital, Hangzhou, Zhejiang, People's Republic of China
| | - H Wen
- Zhejiang University School of Medicine, Women's Hospital, Hangzhou, Zhejiang, People's Republic of China
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Zhan H, Ye M, Jiang J, Gao Y, Zheng C, Duan S. Structural performance of detachable precast concrete column-column joint. Heliyon 2024; 10:e27308. [PMID: 38495148 PMCID: PMC10943345 DOI: 10.1016/j.heliyon.2024.e27308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 02/22/2024] [Accepted: 02/27/2024] [Indexed: 03/19/2024] Open
Abstract
A novel type of detachable precast concrete column-column joint (DPC) is proposed in this study to solve the problems in current column-column dry connections including complex load path, uncertainty of structural stiffness of beam-column joints and inconvenience for disassembly. The dry connection technology is applied by composing of steel plate and concrete. Finite element models of DPC were created to study its structural performance including hysteresis curve, skeleton curve, ductility, and energy dissipation capacity. The benchmark models are firstly established and validated against the test data and after that a small-scale parametric study is prepared. The effect of axial pressure ratio and eccentricity distance size on the seismic performance of DPC was studied. Results indict that the optimal value of axial pressure ratio ranges from 0.5 to 0.7. With increase of the axial pressure ratio, the ductility coefficient shows a decreasing trend in general. The eccentricity has little effect on the energy dissipation capacity of the joint.
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Affiliation(s)
- H. Zhan
- Research Centre of Wind Engineering and Engineering Vibration, Guangzhou University, Guangzhou, 510006, China
| | - M. Ye
- Research Centre of Wind Engineering and Engineering Vibration, Guangzhou University, Guangzhou, 510006, China
| | - J. Jiang
- Department of Civil Engineering and Smart Cities, Shantou University, 515063, China
| | - Y. Gao
- School of Marine Engineering Equipment, Zhejiang Ocean University, 316022, China
| | - C.W. Zheng
- Research Centre of Wind Engineering and Engineering Vibration, Guangzhou University, Guangzhou, 510006, China
| | - S.C. Duan
- Research Centre of Wind Engineering and Engineering Vibration, Guangzhou University, Guangzhou, 510006, China
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Lin Z, Shi G, Liao X, Liu W, Luo X, Zhan H, Cai X. Effect of pulmonary function on bone mineral density in the United States: results from the NHANES 2007-2010 study. Osteoporos Int 2023; 34:955-963. [PMID: 36952024 DOI: 10.1007/s00198-023-06727-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 03/16/2023] [Indexed: 03/24/2023]
Abstract
UNLABELLED The relationship between pulmonary function (PF) and bone mineral density (BMD) remains controversial. In the US population, we found a positive association between PF and BMD. Mixed variables such as age, gender, and race may influence this association. INTRODUCTION Based on the data from the National Health and Nutrition Examination Survey (NHANES) from 2007 to 2010, this study explored whether there is a correlation between PF (1st second forceful expiratory volume as a percentage of expected value (FEV1(% predicted)), (one-second rate (FEV1/FVC)), and bone mineral density. METHODS We evaluated the relationship between PF and BMD in 6327 NHANES subjects (mean age 44.51 ± 15.64 years) from 2007 to 2010. The bone mineral density of the whole femur was measured by dual-energy X-ray absorptiometry (DXA). After adjusting for a wide range of confounders, we examined the relationship between PF and total femur BMD using a multiple linear regression model. RESULTS Correction of race, age, alcohol consumption, body mass index (BMI), height, poor income ratio (PIR), total protein, serum calcium, serum uric acid, cholesterol, serum phosphorus, blood urea nitrogen, FEV1(% predicted), and femur BMD were positively correlated (β = 0.032, 95% CI: 0.010-0.054, P = 0.004). FEV1/FVC was positively correlated with spine BMD (β = 0.275 95%CI: 0.102-0.448, P = 0.002). CONCLUSIONS Our study shows that PF is positively associated with BMD in the US population. A variety of factors such as race and age influence this relationship. the relationship between PF and BMD needs to be further investigated, including specific regulatory mechanisms and confounding factors.
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Affiliation(s)
- Z Lin
- Department of Orthopedics, Fifth Affiliated Hospital of Sun Yat-sen University, Guangdong Province, Zhuhai, China
| | - G Shi
- Department of Orthopedics, Fifth Affiliated Hospital of Sun Yat-sen University, Guangdong Province, Zhuhai, China
| | - X Liao
- Department of Orthopedics, Fifth Affiliated Hospital of Sun Yat-sen University, Guangdong Province, Zhuhai, China
| | - W Liu
- Department of Orthopedics, Fifth Affiliated Hospital of Sun Yat-sen University, Guangdong Province, Zhuhai, China
| | - X Luo
- Department of Orthopedics, Fifth Affiliated Hospital of Sun Yat-sen University, Guangdong Province, Zhuhai, China
| | - H Zhan
- Department of Rehabilitation, Fifth Affiliated Hospital of Sun Yat-sen University, Guangdong Province, Zhuhai, China
| | - X Cai
- Department of Orthopedics, Fifth Affiliated Hospital of Sun Yat-sen University, Guangdong Province, Zhuhai, China.
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Liu S, Sun Z, Ren G, Liao C, He X, Luo K, Li R, Jiang W, Zhan H. Ultrasonic Measurement of Axial Preload in High-Frequency Nickel-Based Superalloy Smart Bolt. Sensors (Basel) 2022; 23:220. [PMID: 36616818 PMCID: PMC9824328 DOI: 10.3390/s23010220] [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: 12/04/2022] [Revised: 12/18/2022] [Accepted: 12/22/2022] [Indexed: 06/17/2023]
Abstract
A high-frequency, piezoelectric thin-film sensor was successfully deposited on a nickel-based superalloy bolt by radio frequency magnetron sputtering to develop a smart, nickel-based superalloy bolt. Ultrasonic response characterization, high accuracy, and repeatability of ultrasonic measurement of axial preload in nickel-based superalloy smart bolts are reported here and were fully demonstrated. The axial preload in the nickel-based superalloy smart bolt was directly measured by the bi-wave method (TOF ratio between transverse and longitudinal-mode waves) without using the traditional integration of a longitudinal and shear transducer. A model concerning the bolt before and after tensioning was established to demonstrate the propagation and displacement distribution of the ultrasonic waves inside a nickel-based superalloy smart bolt. The measured A-scan signal presented significantly favorable features including a mixture of transverse and longitudinal mode waves, a pure and broad frequency spectrum which peaked at 17.14 MHz, and high measurement accuracy below 3% for tension of 4 kN-20 kN. For the temporal ultrasonic signal, the measurement envelopes were narrower than for the counterpart of the simulation, justifying the 'filtration' advantage of the high-frequency sensor. Both the TOF change of the single longitudinal-mode wave and the TOF ratio between transverse- and longitudinal-mode waves increased linearly with preload force in the range of 0 kN to 20 kN. Compared with the commercial piezoelectric probe, the proposed probe, based on the combination of a high-frequency, piezoelectric thin-film sensor and a magnetically mounted transducer connector, exhibited high tolerance to temperatures as high as 320 °C and high repeatability free from some interference factors such as bolt detection position change and couplant layer thickness. The results indicate that this system is a promising axial preload measurement system for high-temperature fasteners and connectors, and the proposed sensor is a practical, high-frequency ultrasonic sensor for non-destructive testing.
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Affiliation(s)
- Shuang Liu
- Department of Applied Physics, College of Mathematics and Physics, Chengdu University of Technology, Chengdu 610059, China
| | - Zhongrui Sun
- Department of Applied Physics, College of Mathematics and Physics, Chengdu University of Technology, Chengdu 610059, China
- Chengdu Development Center of Science and Technology of CAEP, Chengdu 610299, China
| | - Guanpin Ren
- Department of Applied Physics, College of Mathematics and Physics, Chengdu University of Technology, Chengdu 610059, China
- Chengdu Development Center of Science and Technology of CAEP, Chengdu 610299, China
| | - Cheng Liao
- Chengdu Development Center of Science and Technology of CAEP, Chengdu 610299, China
| | - Xulin He
- Chengdu Development Center of Science and Technology of CAEP, Chengdu 610299, China
| | - Kun Luo
- Chengdu Development Center of Science and Technology of CAEP, Chengdu 610299, China
| | - Ru Li
- Chengdu Development Center of Science and Technology of CAEP, Chengdu 610299, China
| | - Wei Jiang
- Chengdu Development Center of Science and Technology of CAEP, Chengdu 610299, China
| | - Huan Zhan
- Chengdu Development Center of Science and Technology of CAEP, Chengdu 610299, China
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Ren G, Zhan H, Liu Z, Jiang W, Li R, Liu S. Evaluation of Axial Preload in Different-Frequency Smart Bolts by Laser Ultrasound. Sensors (Basel) 2022; 22:8665. [PMID: 36433262 PMCID: PMC9698825 DOI: 10.3390/s22228665] [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: 10/11/2022] [Revised: 10/28/2022] [Accepted: 11/09/2022] [Indexed: 06/16/2023]
Abstract
We report here on a laser ultrasonic system to indirectly evaluate the preload force of different-frequency piezoelectric bolts. This newly developed system enables us to achieve the goal of non-contact excitation and synchronously collects the laser-induced ultrasonic signal by the combination of a smart piezoelectric sensor and a magnetically mounted transducer connector. A numerical model based on the finite element method (FEM) was developed to simulate the propagation and displacement distribution of laser-generated ultrasonic waves along the axial direction. The measured A-scan waveform basically coincided with the counterpart obtained from a theoretical simulation, confirming the effectiveness of the proposed system to measure a bolt. By comparison, a laser spot diameter of 6 mm was the optimal beam diameter for the excitation of the ultrasonic wave in the bolt. The linear relationship between time of flight (TOF) of the ultrasonic longitudinal wave and bolt torque was almost independent from the center frequency of the smart bolt. By contrast, a piezoelectric patch centered at 5 MHz was more suitable as an ultrasonic sensor in terms of the nonlinear effects component suppression and linear fitting degree between TOF and torque. The results indicate that the proposed system based on a surface-mounted piezoelectric sensor is a promising system for evaluating the axial preload change of connector and fastener and is an additional potential laser ultrasonic system for nondestructive tests.
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Affiliation(s)
- Guanpin Ren
- Department of Applied Physics, College of Mathematics and Physics, Chengdu University of Technology, Chengdu 610059, China
- Chengdu Development Center of Science and Technology of CAEP, Chengdu 610299, China
| | - Huan Zhan
- Chengdu Development Center of Science and Technology of CAEP, Chengdu 610299, China
| | - Ziqian Liu
- Chengdu Development Center of Science and Technology of CAEP, Chengdu 610299, China
- School of Big Data and Artificial Intelligence, Chengdu Technological University, Chengdu 611730, China
| | - Wei Jiang
- Chengdu Development Center of Science and Technology of CAEP, Chengdu 610299, China
| | - Ru Li
- Chengdu Development Center of Science and Technology of CAEP, Chengdu 610299, China
| | - Shuang Liu
- Department of Applied Physics, College of Mathematics and Physics, Chengdu University of Technology, Chengdu 610059, China
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Tong Q, Yi M, Kong P, Xu L, Huang W, Niu Y, Gan X, Zhan H, Tian R, Yan D. TRIM36 inhibits tumorigenesis through the Wnt/β-catenin pathway and promotes caspase-dependent apoptosis in hepatocellular carcinoma. Cancer Cell Int 2022; 22:278. [PMID: 36068629 PMCID: PMC9450375 DOI: 10.1186/s12935-022-02692-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 08/22/2022] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is the most common type of primary liver cancer and has an extremely poor prognosis. We aimed to determine the latent relationships between TRIM36 regulation of apoptosis and the Wnt/β-catenin pathway in HCC. METHODS Immunohistochemistry and western blotting were used to characterize the aberrant expression of TRIM36 in HCC and adjacent tissues. Clinical information was analyzed using Kaplan-Meier and Cox methods. RNA-seq of potential targets was conducted to detect the regulation of TRIM36. Apoptosis assays and cellular proliferation, invasion and migration were conducted in a loss- and gain-of-function manner in cultured cells to determine the biological functions of TRIM36. A rescue experiment was conducted to confirm the role of Wnt/β-catenin signaling in TRIM36 regulation. Finally, in vivo experiments were conducted using cell line-derived xenografts in nude mice to validate the central role of TRIM36 in HCC. RESULTS TRIM36 expression was significantly downregulated in HCC tissues compared to adjacent non-tumor tissues. TRIM36 repressed the proliferation, migration, and invasion of Huh7 and HCCLM3 cells, whereas it stimulated apoptosis. Wnt/β-catenin signaling was inhibited by TRIM36, and rescue experiments highlighted its importance in HCC proliferation, migration, and invasion. In vivo experiments further confirmed the effects of sh-TRIM36 on HCC tumorigenesis, inhibition of apoptosis, and promotion of Wnt/β-catenin signaling. CONCLUSION Our study is the first to indicate that TRIM36 acts as a tumor suppressor in HCC. TRIM36 activates apoptosis and inhibits cellular proliferation, invasion, and migration via the Wnt/β-catenin pathway, which may serve as an important biomarker and promising therapeutic target for HCC.
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Affiliation(s)
- Qing Tong
- Department of Hepatopancreatobiliary Surgery, Affiliated Cancer Hospital of Xinjiang Medical University, Urumqi, 830011, Xinjiang, China
- The Third Affiliated, Teaching Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Mingyu Yi
- The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Panpan Kong
- Department of Hepatopancreatobiliary Surgery, Affiliated Cancer Hospital of Xinjiang Medical University, Urumqi, 830011, Xinjiang, China
| | - Lin Xu
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China
| | - Wukui Huang
- The Third Affiliated, Teaching Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Yue Niu
- The Third Affiliated, Teaching Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Xiaojing Gan
- The Third Affiliated, Teaching Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Huan Zhan
- The Third Affiliated, Teaching Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Rui Tian
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Dong Yan
- Department of Hepatopancreatobiliary Surgery, Affiliated Cancer Hospital of Xinjiang Medical University, Urumqi, 830011, Xinjiang, China.
- The Third Affiliated, Teaching Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China.
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Qing Z, Kim H, Soo R, Chiu C, Hayashi H, Kim SW, Teraoka S, Kim DW, Zhan H, Zhao H, Li H, Mok T, Wu YL. 992P Updated analyses from the CROWN study of first-line lorlatinib vs crizotinib in Asian patients with ALK-positive non-small cell lung cancer (NSCLC). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1119] [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] Open
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Wu L, Zhan H, Bao ZN, Chen JQ, Cai XL. [Analysis of treatment costs for pneumoconiosis patients in Hunan Province]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2022; 40:515-518. [PMID: 35915942 DOI: 10.3760/cma.j.cn121094-20210702-00320] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To explore the level and influencing factors of treatment costs for patients with pneumoconiosis, and to provide a basis for reducing the economic burden of patients with pneumoconiosis and optimizing the rational allocation of medical resources. Methods: In August 2020, the multi-stage stratified sampling method was used to obtain the treatment cost information of pneumoconiosis patients from January to December 2018 in 1123 sample medical institutions. The average cost per time of 2178 outpatients and 7425 inpatients was described, and the differences in the distribution of hospitalization costs for patients with pneumoconiosis were compared by one-way analysis of variance, and a multiple linear regression model was constructed to analyze the influencing factors of hospitalization costs for patients with pneumoconiosis. Results: The average cost of outpatients with pneumoconiosis was 465.88 yuan, and the average cost of inpatients was 12280.63 yuan. There were statistically significant differences in hospitalization expenses among different age, institution level, institution type, length of hospital stay and type of insured (F=10.49, 402.92, 416.35, 2390.48, 1298.14, P<0.001) . Age, length of hospital stay, reimbursement ratio, and institution level were influencing factors of the total hospitalization expenses of patients with pneumoconiosis (t=5.27, 62.20, 22.35, 21.20, P<0.001) . Conclusion: Patients with pneumoconiosis have a heavy burden of treatment costs. Age, length of hospital stay, institution level and reimbursement ratio are the main influencing factors of hospitalization costs. It is recommended to strengthen the prevention and treatment of key populations, standardize the use of medical insurance, and promote the rational allocation of medical resource to reduce the cost burden of pneumoconiosis patients.
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Affiliation(s)
- L Wu
- School of Humanities and Management, Hunan University of Chinese Medicine, Changsha 410208, China
| | - H Zhan
- School of Humanities and Management, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Z N Bao
- School of Humanities and Management, Hunan University of Chinese Medicine, Changsha 410208, China
| | - J Q Chen
- School of Humanities and Management, Hunan University of Chinese Medicine, Changsha 410208, China
| | - X L Cai
- School of Humanities and Management, Hunan University of Chinese Medicine, Changsha 410208, China
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Ren G, Xu L, Zhan H, Liu S, Jiang W, Li R. Quantifying the shape effect of plasmonic gold nanoparticles on photoacoustic conversion efficiency. Appl Opt 2022; 61:4567-4570. [PMID: 36256299 DOI: 10.1364/ao.457426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 04/28/2022] [Indexed: 06/16/2023]
Abstract
Gold nanoparticles with strong localized plasmonic effects have found wide applications in photoacoustic imaging, which are ascribed to their unique microscopic mechanism of converting photons to ultrasound. In this report, we quantitatively model the time-resolved temperature field, thermal expansion, and pressure distribution based on the finite element analysis method, and two-dimensional gold nanoparticles spanning from the triangle, square, pentagon, and hexagon to the circle have been systematically studied. Results show that the shape of gold nanoparticles has a nontrivial effect on photoacoustic conversion efficiency, and the square-shaped gold structure exhibits the best performance. Our findings could shed light on the shape design of high-performance photoacoustic agents in the future.
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Yu Y, Ran Y, Zhan H, Wan W, Shi L, Li M, Wei X. The Importance of Genetic Isolation in Preserving the Gene Pool of Apis cerana in Fanjingshan Nature Reserve. RUSS J GENET+ 2022. [DOI: 10.1134/s1022795422020144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zhan H, Cui H, Yu J, Hayat K, Wu X, Zhang X, Ho CT. Characteristic flavor formation of thermally processed N-(1-deoxy-α-d-ribulos-1-yl)-glycine: Decisive role of additional amino acids and promotional effect of glyoxal. Food Chem 2022; 371:131137. [PMID: 34562777 DOI: 10.1016/j.foodchem.2021.131137] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 08/22/2021] [Accepted: 09/12/2021] [Indexed: 11/16/2022]
Abstract
The role of amino acids and α-dicarbonyls in the flavor formation of Amadori rearrangement product (ARP) during thermal processing was investigated. Comparisons of the volatile compounds and their concentrations when N-(1-deoxy-α-d-ribulos-1-yl)-glycine reacted with different amino acids or glyoxal (GO) at 100 °C were executed. Additional amino acids, such as glycine (Gly), in ARP models contributed to the diversity of furanoids by the chain elongation of the derived formaldehyde. Whereas the monoanion of additional glutamic acid acted as nucleophile, favored 2-ethyl-3,5-dimethylpyrazine and 2,5-dimethylpyrazine formation; the nonionized amino group of additional lysine were involved in α-dicarbonyls formation, causing pyrazine and methylpyrazine accumulation in the ARP model. Moreover, the high dosage and pH stabilization of additional GO probably promoted the ARP degradation and deoxyosones retro-aldol cleavage, resulting in methylpyrazine rather than furanoids formation. The present work provided the guidance for the controlled flavor formation of ARP in industrial application.
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Affiliation(s)
- Huan Zhan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Lihu, Wuxi, Jiangsu 214122, PR China
| | - Heping Cui
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Lihu, Wuxi, Jiangsu 214122, PR China
| | - Junhe Yu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Lihu, Wuxi, Jiangsu 214122, PR China
| | - Khizar Hayat
- Department of Kinesiology, Nutrition, and Health, Miami University, Oxford, OH 45056, USA.
| | - Xian Wu
- Department of Kinesiology, Nutrition, and Health, Miami University, Oxford, OH 45056, USA.
| | - Xiaoming Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Lihu, Wuxi, Jiangsu 214122, PR China.
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, 65 Dudley Road, New Brunswick 08901, NJ, USA.
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Liu J, Jiang P, Tian X, Jia W, Huang NL, Zhan H, Chen W. Clinical outcomes of retrievable inferior vena cava filters for venous thromboembolic diseases. J Comp Eff Res 2022; 11:437-449. [PMID: 35199584 DOI: 10.2217/cer-2021-0291] [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] [Indexed: 11/21/2022] Open
Abstract
Aim: To identify literature evidence assessing retrievable inferior vena cava filter (rIVCF) for venous thromboembolic diseases. Methods: A systematic literature search was conducted to identify relevant references from the mainstay English and Chinese bibliographic databases (search period: January 2003 to October 2019). Results: 80 original studies with 11,413 patients were included in this review. The success rates of deploying the six types of rIVCFs ranged from 98.4 to 100.0%. Denali had the highest retrieval success rate (95.4-97.6%). The incidence rates of fracture and perforation associated with retrieving the six rIVCFs were less than 2%. Conclusion: The approved rIVCF had comparable clinical profiles, except that Denali was easier to be retrieved than other rIVCF.
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Affiliation(s)
| | - Peng Jiang
- Beijing Jishuitan Hospital, Beijing, China
| | - Xuan Tian
- Beijing Jishuitan Hospital, Beijing, China
| | - Wei Jia
- Beijing Jishuitan Hospital, Beijing, China
| | | | - Huan Zhan
- Changsha Normin Health Technology Ltd, Changsha, China
| | - Wendong Chen
- Changsha Normin Health Technology Ltd, Changsha, China.,Normin Health Consulting Ltd, Toronto, Canada
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Cao Y, Xiong F, Xia X, Gu P, Wang Q, Wu A, Zhan H, Chen W, Qian Z. Economic impact of powered stapler in video-assisted thoracic surgery lobectomy for lung Cancer in a Chinese tertiary hospital: a cost-minimization analysis. Health Econ Rev 2022; 12:12. [PMID: 35141818 PMCID: PMC8830080 DOI: 10.1186/s13561-022-00359-x] [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] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 02/03/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND To assess the economic impact of powered stapler use in video-assisted thoracic surgery (VATS) lobectomy for lung cancer in a Chinese tertiary care hospital. METHODS This study identified 388 patients who received VATS lobectomy using the ECHELON powered stapler (n = 296) or the ECHELON manual stapler (n = 92) for lung cancer in a Chinese tertiary hospital. Multiple generalized linear regression analyses were conducted using data on hospital costs and patient characteristics to develop predictive equations for hospital costs in a cost-minimization analysis (CMA) model comparing hospital costs associated with the ECHELON powered stapler and the ECHELON manual stapler. CMA model was used to conduct scenario analysis to compare the ECHELON powered stapler with another manual stapler (Victor Medical). RESULTS The multiple generalized linear regression analyses identified that using the ECHELON powered stapler in VATS lobectomy for lung cancer was associated with significantly lower drug costs than using the ECHELON manual stapler (coefficient - 0.256, 95% confidence interval: - 0.375 to - 0.139). The CMA model estimated that the ECHELON powered stapler could save hospital costs by ¥1653 when compared with the ECHELON manual stapler (¥65,531 vs. ¥67,184). The use of the ECHELON powered stapler also saved hospital costs by ¥4411 when compared with the Victor Medical manual stapler (¥65,531 vs. ¥69,942) in the scenario analysis. CONCLUSIONS Compared to the two manual staplers used for VATS lobectomy for lung cancer in a Chinese tertiary hospital, the ECHELON powered stapler had 100% probability to save total hospital costs under present prices of the three staplers according to the CMA.
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Affiliation(s)
- Yang Cao
- Xiangya Hospital, Central South University, Changsha, China
| | - Fang Xiong
- Xiangya Hospital, Central South University, Changsha, China
| | - Xiaozhe Xia
- Xiangya Hospital, Central South University, Changsha, China
| | - Pengjuan Gu
- Xiangya Hospital, Central South University, Changsha, China
| | - Qinghong Wang
- Xiangya Hospital, Central South University, Changsha, China
| | - Aiping Wu
- Xiangya Hospital, Central South University, Changsha, China
| | - Huan Zhan
- Changsha Normin Health Technology Ltd, Changsha, China
| | | | - Zhaoxin Qian
- Xiangya Hospital, Central South University, Changsha, China.
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Gao Y, Xiong F, Xia X, Gu P, Wang Q, Wu A, Zhan H, Chen W, Qian Z. Clinical outcomes of powered and manual staplers in video-assisted thoracic surgery lobectomy for lung cancer. J Comp Eff Res 2021; 10:1011-1019. [PMID: 34189927 DOI: 10.2217/cer-2021-0060] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Methods: This retrospective cohort study identified patients who underwent video-assisted thoracic surgery (VATS) lobectomy for lung cancer from January 2016 to December 2018 in a Chinese tertiary general hospital. The electronic hospital medical records associated with the VATS lobectomy for lung cancer were the data sources. Results: Based on the analysis of 433 patients with the utilization of staplers in their VATS lobectomy for lung cancer, using powered stapler was associated with significantly shorter operation time and postsurgery hospital stay length than using the manual stapler in the multivariable generalized linear regression analyses with the adjustment of patient characteristics. However, no other significant differences were observed for other clinical outcomes between the two staplers.
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Affiliation(s)
- Yang Gao
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Fang Xiong
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Xiaozhe Xia
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Pengjuan Gu
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Qinghong Wang
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Aiping Wu
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Huan Zhan
- Changsha Normin Health Technology Ltd, Changsha, China
| | - Wendong Chen
- Normin Health Consulting Ltd, Toronto, L5R 0E9, Canada
| | - Zhaoxin Qian
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, Changsha, China
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Yu J, Cui H, Zhang Q, Hayat K, Zhan H, Yu J, Jia C, Zhang X, Ho CT. Adducts Derived from (-)-Epigallocatechin Gallate-Amadori Rearrangement Products in Aqueous Reaction Systems: Characterization, Formation, and Thermolysis. J Agric Food Chem 2020; 68:10902-10911. [PMID: 32893622 DOI: 10.1021/acs.jafc.0c05098] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The interaction mechanism of (-)-epigallocatechin gallate (EGCG) with Amadori compound (Amadori rearrangement product, ARP) in xylose-alanine model reaction systems was investigated. The adducts between ARP and EGCG were identified as two ARP-EGCG isomers, two ARP-EGCG-H2O isomers, and multiple ARP-deoxypentosone (DP)-EGCG isomers. The structure of an isolated and purified ARP-EGCG adduct was analyzed by means of Fourier transform infrared spectroscopy, ultraviolet-visible spectroscopy, liquid chromatography-time-of-flight (TOF)-mass spectrometry (LC-TOF-MS), and nuclear magnetic resonance (NMR). Using the two-dimensional NMR analyses, the structure of ARP-EGCG adducts was clarified to consist of a covalent linkage between the C12 position of the ARP and the C8 position of the A-ring of EGCG, presumably generated by the nucleophilic nature of the EGCG or aromatic substitution reactions. The results showed that slightly alkaline pH and higher temperature could facilitate this reaction. Additionally, the thermal stability of ARP-EGCG and its degradation products revealed that the decomposition pathways of this adduct altered the classic decomposition pathway of ARP, resulting in a lower browning rate and blocking the subsequent Maillard reaction.
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Affiliation(s)
- Junhe Yu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, P. R. China
| | - Heping Cui
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, P. R. China
| | - Qiang Zhang
- Anhui Province Key Laboratory of Functional Compound Seasoning, Anhui Qiangwang Flavouring Food Co., Ltd., No. 1 Shengli Road, Jieshou 236500, Anhui, P. R. China
| | - Khizar Hayat
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
| | - Huan Zhan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, P. R. China
| | - Jingyang Yu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, P. R. China
| | - Chengsheng Jia
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, P. R. China
| | - Xiaoming Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, P. R. China
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901, United States
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Ying C, Yan L, Zhan H, Chen Y, Chen W. PGI6 DISEASE BURDEN OF MODERATE TO SEVERE CROHN'S DISEASE UNDER CURRENT TREATMENT PATTERN IN CHINA. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Huang H, Yan L, Zhan H, Chen Y, Chen W. PCN52 Disease Burden of Prostate Cancer UNDER Current Treatment Pattern in China. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Huang H, Li Y, Yan L, Zhan H, Chen Y, Chen W. PCN45 Disease Burden of Breast Cancer UNDER the Current Treatment Pattern in China. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Huang H, Tan L, Yan L, Zhan H, Chen Y, Chen W. PCN47 Disease Burden of Gastric Cancer UNDER the Current Treatment Pattern in China. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.097] [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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Huang H, Tan L, Yuan L, Zhan H, Chen Y, Chen W. PCN51 Disease Burden of Mantle CELL Lymphoma UNDER Current Treatment Pattern in China. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Huang H, Tan L, Yan L, Zhan H, Chen Y, Chen W. PCN46 Disease Burden of Chronic Lymphocytic Leukemia/SMALL Lymphocytic Lymphomaunder Current Treatment Pattern in China. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Gong Q, Chen C, Yan L, Zhan H, Chen Y, Chen W. PCN15 Disease Burden of Myelodysplastic Syndrome UNDER the Current Treatment Pattern in China. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Huang H, Chen C, Yan L, Zhan H, Chen Y, Chen W. PIN16 Disease Burden of Progressive Chronic Hepatitis B in China. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ying C, Yan L, Zhan H, Chen Y, Chen W. PCN49 Disease Burden of Classical Hodgkin Lymphoma UNDER Current Treatment Pattern in China. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ying C, Yan L, Zhan H, Chen Y, Chen W. PCN43 Disease Burden of NON-SMALL CELL Cancer UNDER Current Treatment Pattern in China. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Gong Q, Chen C, Yan L, Zhan H, Chen Y, Chen W. PCN14 Disease Burden of Waldenstrom's Macroglobulinemia UNDER the Current Treatment Pattern in China. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Gong Q, Chen C, Yan L, Zhan H, Chen Y, Chen W. PCN21 Disease Burden of Multiple Myeloma UNDER the Current Treatment Pattern in China. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ying C, Yan L, Zhan H, Chen Y, Chen W. PCN50 Disease Burden of Chronic Myeloid Leukemia UNDER Current Treatment Pattern in China. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.100] [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: 11/27/2022]
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Huang H, Yuan L, Zhan H, Chen Y, Chen W. PIN24 Disease Burden of Progressive Chronic Hepatitis C in China. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Zhan H, Wu Q, Zang S, Zhou L, Wang X. How were situations of preventive and curative care expenditure for AIDS and medical burden of patients? Research based on "System of Health Accounts 2011". BMC Public Health 2020; 20:169. [PMID: 32019506 PMCID: PMC7001254 DOI: 10.1186/s12889-019-8131-0] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 12/26/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The problem of AIDS response has not only involved public health, but also had a great impact on the family burden.The objective of this study was to estimate the preventive and curative care expenditure(PCE)for AIDS of Hunan Province in 2017 based on System of Health Accounts 2011(SHA2011)by quantity,financing scheme,health provider,health function,and to analyses the factors affecting patients' medical burden. METHODS Through stratified multi-stage sampling method, 1336 institutions were surveyed to obtain AIDS prevention and control data, and the official data collected from Health Statistical Yearbook, Health Financial Annual Reports and Government Input Monitoring System were used to estimate the AIDS PCE based on SHA2011. Univariate analyses and ordered logistic regression were used to evaluate the factors affecting the medical burden of AIDS patients. RESULTS The AIDS PCE of Hunan Province in 2017 was 266.67 million, mainly flowed to hospitals and disease prevention and control institutions. The proportions of curative care expenditure(CCE) and prevention expenditure were 51.39 and 48.61% respectively. Prevention expenditure were mainly used for traditional prevention methods. All prevention expenditure and 88.52% of CCE were borne by public financing scheme. Family health expenditure accounted for 11.12% of CCE, but there were still some people with heavy burden of treatment. Non insurance, co-infection and length of stay are risk factors to the total hospitalization expenses(Totalexp)and the out-of-pocket payments(OOPs)(all p < 0.05,OR > 1). Taking the age group under 30 as the reference, the partial regression coefficient of the age group over 60 was statistically significant (OR (Totalexp) = 1.809, OR (OOPs) = 0.30). CONCLUSION The financing structure of the PCE for AIDS in Hunan Province was relatively stable and the flow of institutions was reasonable. The functional flow of expenditure embodied the principle of "prevention first". China should incorporate oral PrEP into the national guidelines as soon as possible to improve the allocation efficiency of AIDS prevention resources. Meantime, several measures should be taken to reduce the medical burden of AIDS patients, including expanding the scope of government assistance, adjusting insurance compensation measures, increasing the rate of patients participating in insurance,encouraging commercial insurance to join the AIDS insurance system,and controlling length of stay in hospital.
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Affiliation(s)
- Huan Zhan
- School of Humanities and Management, Hunan University of Chinese Medicine, 300 Xueshi Road, Yuelu District, Changsha, Hunan Province 410208 People’s Republic of China
| | - Qiong Wu
- School of Humanities and Management, Hunan University of Chinese Medicine, 300 Xueshi Road, Yuelu District, Changsha, Hunan Province 410208 People’s Republic of China
| | - Shuang Zang
- School of Nursing, China Medical University, Shenyang, Liaoning Province People’s Republic of China
| | - Liangrong Zhou
- School of Humanities and Management, Hunan University of Chinese Medicine, 300 Xueshi Road, Yuelu District, Changsha, Hunan Province 410208 People’s Republic of China
| | - Xin Wang
- Humanity and Management College, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi People’s Republic of China
- College of the Humanities and Social Sciences, China Medical University, Shenyang, Liaoning Province People’s Republic of China
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Sun F, Cui H, Zhan H, Xu M, Hayat K, Tahir MU, Hussain S, Zhang X, Ho CT. Aqueous Preparation of Maillard Reaction Intermediate from Glutathione and Xylose and its Volatile Formation During Thermal Treatment. J Food Sci 2019; 84:3584-3593. [PMID: 31721210 DOI: 10.1111/1750-3841.14911] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 09/19/2019] [Accepted: 09/30/2019] [Indexed: 11/29/2022]
Abstract
Maillard reaction intermediate (MGX) generated from glutathione and xylose in aqueous medium was prepared via the Maillard reaction performed under a two-stage temperature increase process. The purified MGX was identified by Fourier-transform infrared spectroscopy, mass spectrometry, and nuclear magnetic resonance as N-(1-deoxy-d-xylulos-1-yl)-glutathione (Amadori compound, C15 H25 O10 N3 S) with five main isomers. The method of Maillard reaction performed under a two-stage temperature increase process was further verified by high-performance liquid chromatography. The optimal reaction time and temperature for the preparation of MGX was determined as 60 min at 90 °C. The yield of MGX was increased from 8.60% to 55.52% through thermal reaction coupled with vacuum dehydration. In addition, rapid and more Maillard-type volatile compounds were formed in MGX during thermal treatment than that in Maillard reaction products or glutathione-xylose mixture. Beside, MGX possessed more pleasing meat-like volatile profile compared with the Amadori compound of glutamic acid-xylose (AAX), cysteine-xylose (ACX), and glycine-xylose (AGX). Therefore, it suggested that the MGX had the potential to achieve a better flavor formation during thermal treatment. PRACTICAL APPLICATION: Maillard reaction intermediates, such as Amadori or Heyns rearrangement products (ARP or HRP), are important flavor precursors, which possess stable physicochemical properties, but tend to degrade into flavor compounds at high temperatures. Maillard reaction intermediate from glutathione and xylose acts as primary flavor enhancers to complete Maillard reaction to produce flavors in the subsequent thermal processing, which can significantly improve and stabilize the flavor quality of the meaty food, and deserves a very broad application prospects. The new developed method will be a significant theoretical basis on research preparation and properties of Maillard reaction intermediates in complex food systems.
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Affiliation(s)
- Fuli Sun
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan Univ., Lihu, Wuxi, Jiangsu, 214122, PR China
| | - Heping Cui
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan Univ., Lihu, Wuxi, Jiangsu, 214122, PR China
| | - Huan Zhan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan Univ., Lihu, Wuxi, Jiangsu, 214122, PR China
| | - Man Xu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan Univ., Lihu, Wuxi, Jiangsu, 214122, PR China
| | - Khizar Hayat
- Dept. of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud Univ., P.O. Box 2460, Riyadh, 11451, Saudi Arabia
| | - Muhammad Usman Tahir
- Dept. of Plant Production, College of Food and Agricultural Sciences, King Saud Univ., P.O. Box 2460, Riyadh, 11451, Saudi Arabia
| | - Shahzad Hussain
- Dept. of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud Univ., P.O. Box 2460, Riyadh, 11451, Saudi Arabia
| | - Xiaoming Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan Univ., Lihu, Wuxi, Jiangsu, 214122, PR China
| | - Chi-Tang Ho
- Dept. of Food Science, Rutgers Univ., New Brunswick 08901, NJ, USA
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Zhan H, Tang W, Cui H, Hayat K, Hussain S, Tahir MU, Zhang S, Zhang X, Ho CT. Formation kinetics of Maillard reaction intermediates from glycine-ribose system and improving Amadori rearrangement product through controlled thermal reaction and vacuum dehydration. Food Chem 2019; 311:125877. [PMID: 31780222 DOI: 10.1016/j.foodchem.2019.125877] [Citation(s) in RCA: 10] [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] [Received: 07/06/2019] [Revised: 10/29/2019] [Accepted: 11/07/2019] [Indexed: 11/30/2022]
Abstract
Amadori rearrangement product (ARP) is an ideal flavor precursor. The formation kinetics of ARP from glycine-ribose system, 3-deoxyribosone (3-DR) and 1-deoxyribosone (1-DR) were evaluated, and then controlled thermal reaction (CTR) coupled with vacuum dehydration was proposed to improve the ARP yield. As key factors controlling the formation of byproducts, CTR temperature and time were optimized as 100 °C, 60 min based on the formation kinetics of the ARP and deoxyribosones. Vacuum dehydration was further used to increase the ARP yield from 0.77% to 64.50%, which was improved by 82.8 times, while 3-DR and 1-DR yield increased only by 1.5 and 3.7 times, respectively. The formation of ARP was the dominant reaction during vacuum dehydration. Under optimal conditions, CTR coupled with vacuum dehydration was an effective method to control byproducts formation and improve the ARP yield simultaneously. This method may offer a potential application in flavor enhancement of light-color food.
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Affiliation(s)
- Huan Zhan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Lihu Road 1800, Wuxi, Jiangsu 214122, PR China
| | - Wei Tang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Lihu Road 1800, Wuxi, Jiangsu 214122, PR China
| | - Heping Cui
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Lihu Road 1800, Wuxi, Jiangsu 214122, PR China
| | - Khizar Hayat
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, P. O. Box 2460, Riyadh 11451, Saudi Arabia.
| | - Shahzad Hussain
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, P. O. Box 2460, Riyadh 11451, Saudi Arabia.
| | - Muhammad Usman Tahir
- Department of Plant Production, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia.
| | - Songlin Zhang
- School of Chemical and Material Engineering, Jiangnan University, Lihu, Wuxi, Jiangsu 214122, PR China.
| | - Xiaoming Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Lihu Road 1800, Wuxi, Jiangsu 214122, PR China.
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, 65 Dudley Road, New Brunswick 08901, NJ, USA.
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Zang S, Zhan H, Zhou L, Wang X. Research on Current Curative Expenditure among Lung Cancer Patients Based on the "System of Health Accounts 2011": Insights into Influencing Factors. J Cancer 2019; 10:6491-6501. [PMID: 31777579 PMCID: PMC6856899 DOI: 10.7150/jca.34891] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 09/22/2019] [Indexed: 01/02/2023] Open
Abstract
PURPOSE To investigate the total current curative expenditure (CCE) of lung cancer in Hunan Province, China under the framework of the System of Health Accounts 2011 (SHA 2011) and explore the effect of insurance status, surgery and length of stay on the hospitalization expenses of patients with lung cancer. METHODS Through multistage stratified cluster random sampling, a total of 46,214 patients with lung cancer were enrolled from 1,072 medical institutions in Hunan Province in 2016. Under the SHA 2011 framework, the lung cancer CCE was analyzed. The relationships between hospitalization expenditure and the following factors (surgery, type of hospital, insurance status, length of stay, institution level, age and sex) were analyzed using Spearman's correlation analyses, and how these factors influenced hospital expenditure was explored through multiple stepwise regression analysis and structural equation modelling. RESULTS The CCE for lung cancer patients was 8063.75 million CNY. In total, 96.03% of the CCE for lung cancer occurred in hospitals and 58.88% of the expenditure flowed to general hospitals. The highest expenditures were incurred in the group aged 55-74 y, which accounted for 61.58% of the CCE. Drugs accounted for the greatest share expenditure to lung cancer patients at 34.31% of the CCE. Surgery, insurance status, institution level, sex and hospital type explained 57.5% of the variance in hospital expenses. The hospitalization expenses were related to surgery, insurance status, institution level and sex (rs = 0.033-0.688, p < 0.001). Surgery, insurance status and length of stay had direct effects on hospitalization expenses. Length of stay mediated the relationship between surgery and hospitalization expenses for lung cancer patients. Surgery mediated the relationship between insurance status and hospitalization expenses. All of these variables can explain 45% of the variance in hospitalization expenses. CONCLUSIONS The CCE of lung cancer is extremely high. The problems related to treatment efficiency and equity are serious for lung cancer patients in China. It is essential to expand health insurance coverage and reduce the curative expenditure of lung cancer.
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Affiliation(s)
- Shuang Zang
- School of Nursing, China Medical University, Shenyang, Liaoning
| | - Huan Zhan
- School of Humanities and Management, Hunan University of Chinese Medicine, Changsha, Hunan
| | - Liangrong Zhou
- School of Humanities and Management, Hunan University of Chinese Medicine, Changsha, Hunan
| | - Xin Wang
- College of the Humanities and Social Sciences, China Medical University, Shenyang, Liaoning
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Wu B, Song K, Gong Q, Zhan H, Chen W, Wang Z. Perioperative outcomes and hospital costs associated with flowable gelatin hemostatic matrix for lumbar surgeries in real world hospital setting. J Med Econ 2019; 22:917-923. [PMID: 31124723 DOI: 10.1080/13696998.2019.1623809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Background: Efficient hemostasis during lumbar surgery (LS) is associated with better perioperative outcomes. Flowable gelatin hemostatic matrix (FGHM) is a new type of absorbable hemostatic agent, which is effective to control bleeding during spinal surgery. This study aimed to assess the impact of FGHM on perioperative outcomes and hospital costs associated with LS. Methods: This study retrospectively analyzed medical and billing records of patients who underwent LS for spinal degenerative disease in a Chinese tertiary care hospital from 2014 to 2016. The identified patients were further stratified into a FGHM group (n = 108) (using the combination of FGHM and gelatin sponge) and a historical control group (using oxidized cellulose and/or collagen, n = 82) for the adjusted comparisons of the perioperative outcomes using a propensity score matching method. Multiple generalized linear regression was conducted to assess the impact of using FGHM on total hospitalization costs. Results: Comparisons of 64 propensity score matched pairs showed a significantly lower blood transfusion rate (34.4% vs 64.1%, p = 0.005), lower blood transfusion volume (182.7 ± 312.4 vs 301.3 ± 281.0 mL, p = 0.045), reduced post-surgery drainage tube placement rate (82.8% vs 93.8%, p = 0.046), and shorter post-operative days on antibiotics (6.0 ± 2.6 vs 7.1 ± 2.4 days, p = 0.010) in the FGHM group. Although with a relatively high acquisition price, the use of FGHM for hemostasis in LS did not increase the total hospitalization costs (coefficient = -0.001, p = 0.972). Conclusions: The use of FGHM in LS improved perioperative outcomes related to hemostatic effects without increasing overall hospital costs in a real-world hospital setting.
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Affiliation(s)
- Bing Wu
- a Department of Orthopaedics, Chinese PLA General Hospital , Beijing , PR China
| | - Kai Song
- a Department of Orthopaedics, Chinese PLA General Hospital , Beijing , PR China
| | - Qianyi Gong
- b Division of Health Economics and Outcomes Research, Changsha Normin Health Technology Ltd , Changsha , PR China
| | - Huan Zhan
- b Division of Health Economics and Outcomes Research, Changsha Normin Health Technology Ltd , Changsha , PR China
| | - Wendong Chen
- b Division of Health Economics and Outcomes Research, Changsha Normin Health Technology Ltd , Changsha , PR China
- c Division of Health Economics and Outcomes Research, Normin Health Consulting Ltd , Toronto , Canada
| | - Zheng Wang
- a Department of Orthopaedics, Chinese PLA General Hospital , Beijing , PR China
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Lu S, Cui H, Zhan H, Hayat K, Jia C, Hussain S, Tahir MU, Zhang X, Ho CT. Timely Addition of Glutathione for Its Interaction with Deoxypentosone To Inhibit the Aqueous Maillard Reaction and Browning of Glycylglycine-Arabinose System. J Agric Food Chem 2019; 67:6585-6593. [PMID: 31124366 DOI: 10.1021/acs.jafc.9b02053] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The inhibitory effects of glutathione (GSH) and oxiglutathione (GSSG) on Maillard browning were compared, and it was clarified that free sulfhydryl was the key substance for the inhibition. The Amadori rearrangement product (ARP) derived from glycylglycine (Gly-Gly) and arabinose (Ara) was prepared by aqueous Maillard reaction, and LC-MS/MS was used to investigate the reaction products of GSH and purified ARP. Reaction between GSH and deoxypentosone (DP) was found to alter the pathway of aqueous Maillard reaction, which reduced the production of glyoxal, methylglyoxal, and furfural and thereby inhibited the formation of melanoidins. To determine the optimal conditions for browning inhibition, a stepwise increase of temperature was used to prepare Maillard reaction products (MRPs). The results showed that the optimum browning inhibitory effect was obtained by adding GSH after Gly-Gly and Ara heating at 80 °C for 60 min.
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Affiliation(s)
- Siyun Lu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology , Jiangnan University , 1800 Lihu Road , Wuxi , Jiangsu 214122 , P. R. China
| | - Heping Cui
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology , Jiangnan University , 1800 Lihu Road , Wuxi , Jiangsu 214122 , P. R. China
| | - Huan Zhan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology , Jiangnan University , 1800 Lihu Road , Wuxi , Jiangsu 214122 , P. R. China
| | - Khizar Hayat
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences , King Saud University , P.O. Box 2460, Riyadh 11451 , Saudi Arabia
| | - Chengsheng Jia
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology , Jiangnan University , 1800 Lihu Road , Wuxi , Jiangsu 214122 , P. R. China
| | - Shahzad Hussain
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences , King Saud University , P.O. Box 2460, Riyadh 11451 , Saudi Arabia
| | - Muhammad Usman Tahir
- Department of Plant Production, College of Food and Agricultural Sciences , King Saud University , P.O. Box 2460, Riyadh 11451 , Saudi Arabia
| | - Xiaoming Zhang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology , Jiangnan University , 1800 Lihu Road , Wuxi , Jiangsu 214122 , P. R. China
| | - Chi-Tang Ho
- Department of Food Science , Rutgers University , 65 Dudley Road , New Brunswick , New Jersey 08901 , United States
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Yu Z, Liu Y, Cui Y, Ma R, Zhan H, Chen W, Liu H. Cost-effectiveness of standard utilization of zoledronic acid for bone metastases from advanced lung cancer in China. J Comp Eff Res 2019; 8:487-495. [PMID: 30922074 DOI: 10.2217/cer-2018-0127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: To assess the cost-effectiveness of standard utilization of zoledronic acid (ZA) relative to real-world utilization of ZA for bone metastasis (BM) in Chinese patients with advanced lung cancer. Materials & methods: A decision analytic model was constructed to simulate health benefits and medical costs associated with standard and real-world utilization of ZA for BM in Chinese patients with advanced lung cancer. Results: Compared with real-world utilization of ZA, standard utilization of ZA reduced cumulative risk of skeletal-related events (45.7 vs 63.6%), increased quality-adjusted life years (0.673 vs 0.626 QALY) and saved cumulated medical costs (¥343,163 vs ¥376,943). Conclusion: Standard utilization of ZA dominated real-world utilization of ZA for BM in Chinese patients with advanced lung cancer from cost-effectiveness perspective.
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Affiliation(s)
- Zhanwu Yu
- Department of Thoracic Surgery, Liaoning Cancer Hospital & Institute, China Medical University, Shenyang, China 110042
| | - Yu Liu
- Department of Thoracic Surgery, Liaoning Cancer Hospital & Institute, China Medical University, Shenyang, China 110042
| | - Ying Cui
- Department of Medical Reimbursement, Liaoning Cancer Hospital & Institute, China Medical University, Shenyang, China 110042
| | - Rui Ma
- Department of Thoracic Surgery, Liaoning Cancer Hospital & Institute, China Medical University, Shenyang, China 110042
| | - Huan Zhan
- Changsha Normin Health Technology Ltd, Changsha, China 410013
| | - Wendong Chen
- Changsha Normin Health Technology Ltd, Changsha, China 410013.,Normin Health Consulting Ltd, Toronto, Canada L5R 0E9
| | - Hongxu Liu
- Department of Thoracic Surgery, Liaoning Cancer Hospital & Institute, China Medical University, Shenyang, China 110042
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Wu Y, Wu Y, Gangoli G, Bourcet A, Danker W, Gong Q, Zhan H, Chen W, Wang Z. Using flowable gelatin in anterior cervical spine surgery in real-world practice: a retrospective cohort study. J Comp Eff Res 2019; 8:317-326. [PMID: 30681001 DOI: 10.2217/cer-2018-0121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
AIM To assess the clinical and economic impact of flowable gelatin hemostatic matrix (FGHM) in anterior cervical spine surgery (ACSS). PATIENTS & METHODS A total of 451 patients with performed ACSS were included to compare FGHM with conventional hemostatic methods for clinical and cost outcomes using propensity score matching method. RESULTS The comparisons of the matched 125 pairs observed that FGHM was associated with significantly lower blood transfusion volume (11.2 vs 36.3 ml; p = 0.039), shorter postsurgery hospital stay length (3.7 vs 4.7 days; p = 0.002), shorter operation time (103.5 vs 117.7 min; p = 0.004), lower drainage placement rate (51.2 vs 89.6%; p < 0.001) and also lower total hospital costs (median ¥64,717 vs ¥65,064; p = 0.035). CONCLUSION Use of FGHM in ACSS improved perioperative outcomes without increasing hospital costs.
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Affiliation(s)
- Yunchang Wu
- Department of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Yiqing Wu
- Health Economics, Johnson & Johnson Medical China, Shanghai, China
| | - Gaurav Gangoli
- Health Economics & Market Access, Johnson & Johnson Medical Devices Companies, Somerville, NJ, USA
| | - Anh Bourcet
- Health Economics, Johnson & Johnson Medical Asia-Pacific, Singapore
| | - Walter Danker
- Health Economics & Market Access, Johnson & Johnson Medical Devices Companies, Somerville, NJ, USA
| | - Qianyi Gong
- Health Economics and Outcomes Research, Changsha Normin Health Technology Ltd, Changsha, Hunan, China
| | - Huan Zhan
- Health Economics and Outcomes Research, Changsha Normin Health Technology Ltd, Changsha, Hunan, China
| | - Wendong Chen
- Health Economics and Outcomes Research, Changsha Normin Health Technology Ltd, Changsha, Hunan, China.,Health Economics and Outcomes Research, Normin Health Consulting Ltd, Toronto, Ontario, Canada
| | - Zheng Wang
- Department of Orthopedics, Chinese PLA General Hospital, Beijing, China
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Zhan H. HAPPINESS AND MORAL CAPITAL—UNDERSTANDING THE GENDERED DIFFERENCE IN INTERGENERATIONAL GIVING IN CHINA. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Zhan H, Lin CHS, Segal Y, Kaushansky K. The JAK2V617F-bearing vascular niche promotes clonal expansion in myeloproliferative neoplasms. Leukemia 2017; 32:462-469. [PMID: 28744010 PMCID: PMC5783797 DOI: 10.1038/leu.2017.233] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Revised: 06/15/2017] [Accepted: 07/10/2017] [Indexed: 12/17/2022]
Abstract
The acquired kinase mutation JAK2V617F plays a central role in myeloproliferative neoplasms (MPNs). However, the mechanisms responsible for the malignant hematopoietic stem/progenitor cell (HSPC) expansion seen in patients with MPNs are not fully understood, limiting the effectiveness of current treatment. Endothelial cells (ECs) are an essential component of the hematopoietic niche, and they have been shown to express the JAK2V617F mutation in patients with MPNs. We show that the JAK2V617F-bearing vascular niche promotes the expansion of the JAK2V617F HSPCs in preference to JAK2WT HSPCs, potentially contributing to poor donor cell engraftment and disease relapse following stem cell transplantation. The expression of Chemokine (C-X-C motif) ligand 12 (CXCL12) and stem cell factor (SCF) were upregulated in JAK2V617F-bearing ECs compared to wild-type ECs, potentially accounting for this observation. We further identify that the thrombopoietin (TPO)/MPL signaling pathway is critical for the altered vascular niche function. A better understanding of how the vascular niche contributes to HSPC expansion and MPN development is essential for the design of more effective therapeutic strategies for patients with MPNs.
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Affiliation(s)
- H Zhan
- Northport VA Medical Center, Northport, NY, USA.,Department of Medicine, Stony Brook Medicine, Stony Brook, NY, USA
| | - C H S Lin
- Department of Medicine, Stony Brook Medicine, Stony Brook, NY, USA
| | - Y Segal
- Northport VA Medical Center, Northport, NY, USA
| | - K Kaushansky
- Department of Medicine, Stony Brook Medicine, Stony Brook, NY, USA.,Office of the Sr. Vice President, Health Sciences, Stony Brook Medicine, Stony Brook, NY, USA
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Shen Y, Lu X, Ma X, He J, Zhang D, Zhan H, Xia Q. Oxidative desulfurization of thiophene derivatives with H2O2 in the presence of catalysts based on MoO3/Al2O3 under mild conditions. Kinet Catal 2017. [DOI: 10.1134/s0023158417010086] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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41
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Manuck TA, Watkins WS, Esplin MS, Biggio J, Bukowski R, Parry S, Zhan H, Huang H, Andrews W, Saade G, Sadovsky Y, Reddy UM, Ilekis J, Yandell M, Varner MW, Jorde LB. Pharmacogenomics of 17-alpha hydroxyprogesterone caproate for recurrent preterm birth: a case-control study. BJOG 2017; 125:343-350. [DOI: 10.1111/1471-0528.14485] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/10/2016] [Indexed: 11/26/2022]
Affiliation(s)
- TA Manuck
- Department of Obstetrics and Gynecology; Division of Maternal Fetal Medicine; University of Utah School of Medicine; Salt Lake City UT USA
- Intermountain Healthcare Department of Maternal Fetal Medicine; Salt Lake City UT USA
- Department of Obstetrics and Gynecology; Division of Maternal Fetal Medicine; University of North Carolina-Chapel Hill; Chapel Hill NC USA
| | - WS Watkins
- Department of Human Genetics; University of Utah; Salt Lake City UT USA
| | - MS Esplin
- Department of Obstetrics and Gynecology; Division of Maternal Fetal Medicine; University of Utah School of Medicine; Salt Lake City UT USA
- Intermountain Healthcare Department of Maternal Fetal Medicine; Salt Lake City UT USA
| | - J Biggio
- Department of Obstetrics and Gynecology; Division of Maternal Fetal Medicine and Center for Women's Reproductive Health; University of Alabama at Birmingham; Birmingham AL USA
| | - R Bukowski
- Department of Obstetrics and Gynecology; Division of Maternal-Fetal Medicine; University of Texas Medical Branch; Galveston TX USA
| | - S Parry
- Department of Obstetrics and Gynecology; University of Pennsylvania School of Medicine; Philadelphia PA USA
| | - H Zhan
- Collaborative Center for Statistics in Science; Yale University School of Public Health; New Haven CT USA
| | - H Huang
- Collaborative Center for Statistics in Science; Yale University School of Public Health; New Haven CT USA
| | - W Andrews
- Department of Obstetrics and Gynecology; Division of Maternal Fetal Medicine and Center for Women's Reproductive Health; University of Alabama at Birmingham; Birmingham AL USA
| | - G Saade
- Department of Obstetrics and Gynecology; Division of Maternal-Fetal Medicine; University of Texas Medical Branch; Galveston TX USA
| | - Y Sadovsky
- Magee-Womens Research Institute; University of Pittsburgh School of Medicine; Pittsburgh PA USA
| | - UM Reddy
- Pregnancy and Perinatology Branch; Center for Developmental Biology and Perinatal Medicine; Eunice Kennedy Shriver National Institute of Child Health and Human Development; Bethesda MD USA
| | - J Ilekis
- Pregnancy and Perinatology Branch; Center for Developmental Biology and Perinatal Medicine; Eunice Kennedy Shriver National Institute of Child Health and Human Development; Bethesda MD USA
| | - M Yandell
- Department of Human Genetics; University of Utah; Salt Lake City UT USA
| | - MW Varner
- Department of Obstetrics and Gynecology; Division of Maternal Fetal Medicine; University of Utah School of Medicine; Salt Lake City UT USA
- Intermountain Healthcare Department of Maternal Fetal Medicine; Salt Lake City UT USA
| | - LB Jorde
- Department of Human Genetics; University of Utah; Salt Lake City UT USA
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Peng K, Zhan H, Ni L, Wang X, Wang Y, Gao C, Li Y, Wang J, Jing F, Lin A. Single-mode large-mode-area laser fiber with ultralow numerical aperture and high beam quality. Appl Opt 2016; 55:10133-10137. [PMID: 27958427 DOI: 10.1364/ao.55.010133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
By using the chelate precursor doping technique, we report on an ytterbium-doped aluminophosphosilicate (APS) large-mode-area fiber with ultralow numerical aperture of 0.036 and effective fundamental mode area of ∼550 μm2. With a bend diameter of 600 mm, the bending loss of fundamental mode LP01 was measured to be <10-3 dB/m, in agreement with the corresponding simulation results, while that of higher order mode LP11 is >100 dB/m at 1080 nm. Measured in an all-fiber oscillator laser cavity, 592 W single-mode laser output was obtained at 1079.64 nm with high-beam quality M2 of 1.12. The results indicate that the chelate precursor doping technique is a competitive method for ultralow numerical aperture fiber fabrication, which is very suitable for developing single-mode seed lasers for high power laser systems.
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Zhan H, Liu Q, Wang Y, Ke W, Ni L, Wang X, Peng K, Gao C, Li Y, Lin H, Wang J, Jing F, Lin A. 5kW GTWave fiber amplifier directly pumped by commercial 976nm laser diodes. Opt Express 2016; 24:27087-27095. [PMID: 27906283 DOI: 10.1364/oe.24.027087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
With home-made fiber perform and special fiber drawing & coating technique, a new-type of (3 + 1) GTWave fiber theoretically designed for bi-directional pump method, was successfully fabricated and justified of integrating multi-kW pump energy from commercial 976nm laser diodes. This (3 + 1) GTWave fiber amplifier demonstrated uniform absorption of pump light and easy thermal management characteristics along the whole fiber length. This amplifier is capable of simultaneously aggregating 5.19kW pump power at 976nm and finally generating 5.07kW laser output at 1066.5nm with an optical-to-optical efficiency of 74.5%, the first publically-reported multi-kW GTWave fiber directly pumped with commercial 976nm laser diodes to the best of our knowledge. No power roll-over was found at 5kW level and further power scaling can be expected with more pump power. The results indicate that GTWave fiber is a competitive integrated fiber device to collect enough pump energy from low-cost commercial laser diodes for multi-kW fiber laser development.
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Zhang D, Chen J, Zhan H, Huang Y, Chen S, Law F, Ba-Thein W. Clostridium difficile-associated clinical burden from lack of diagnostic testing in a Chinese tertiary hospital. J Hosp Infect 2016; 94:S0195-6701(16)30435-2. [PMID: 28029470 DOI: 10.1016/j.jhin.2016.10.001] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 10/01/2016] [Indexed: 02/05/2023]
Abstract
Despite Clostridium difficile infection (CDI) being a common cause of diarrhoea in hospitals worldwide, diagnostic testing or management guidelines are not available in most hospitals in China. In this prospective two-year study, the incidence of CDI among 276 patients with watery diarrhoea was 23.1%. Lack of diagnostic testing for CDI was associated with improper management in 26.4% of patients, risk of nosocomial transmission from lack of isolation precautions, and risk of community transmission from discharging symptomatic toxigenic C. difficile carriers. Updating practice guidelines in line with the current evidence and implementing diagnostic testing for CDI are recommended in hospitals in China.
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Affiliation(s)
- D Zhang
- Research Centre of Translational Medicine, Second Affiliated Hospital of Shantou University Medical College, Shantou, P.R. China
| | - J Chen
- Shantou-Oxford Clinical Research Unit, Shantou University Medical College, Shantou, P.R. China
| | - H Zhan
- Shantou-Oxford Clinical Research Unit, Shantou University Medical College, Shantou, P.R. China
| | - Y Huang
- Department of Clinical Microbiology, First Affiliated Hospital of Shantou University Medical College, Shantou, P.R. China
| | - S Chen
- Department of Endocrinology, First Affiliated Hospital of Shantou University Medical College, Shantou, P.R. China
| | - F Law
- Consultant Office, Shantou University Medical College, Shantou, P.R. China
| | - W Ba-Thein
- Shantou-Oxford Clinical Research Unit, Shantou University Medical College, Shantou, P.R. China; Department of Microbiology and Immunology, Shantou University Medical College, Shantou, P.R. China.
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Peng B, Zhan H, Yong P, Leung P, Lin J, Bedaiwy M. Up-regulated hyaluronan synthase 2 mediates epidermal growth factor-induced cell migration and invasion in human endometriotic stromal cells. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
OBJECTIVES To review published cost-effectiveness analyses (CEA) assessing bortezomib (BTZ) for multiple myeloma (MM) and explore possible bias affecting the cost-effectiveness of BTZ. METHODS Literature was searched for published CEAs assessing BTZ or BTZ-containing regimens for MM from 2003 to 2015. The reported incremental cost-effectiveness ratios (ICER) were adjusted by 2014 country-specific gross domestic product per capita (GDPPC) to compare the cost-effectiveness threshold of the World Health Organization (3 GDPPC per gained quality-adjusted life year [QALY]). RESULTS A total of 17 published CEAs were included in this review. When compared to non-BTZ treatments, BTZ-containing regimens were cost-effective for induction treatment prior to stem cell transplantation (SCT) in Canada, Poland, and Germany (ICER per QALY: 0.9299-2.254 GDPPC). BTZ/melphalan/prednisolone (VMP) was cost-effective for previously untreated and SCT-ineligible MM patients when compared to melphalan plus prednisolone (MP), melphalan/prednisone/lenalidomide with lenalidomide maintenance, and cyclophosphamide/thalidomide/dexamethasone (CTD) (ICER per QALY: dominant to 2.374 GDPPC) in Canada, UK, and USA. BTZ was cost-effective for relapsed/refractory MM when compared to best supportive care (ICER per life year: 0.9317-1.8210 GDPPC) in the UK and the USA, thalidomide in USA (0.5178 GDPPC/LY), and dexamethasone (DEX) in four Nordic countries (€54,451-€81,560/QALY). However, the cost-effectiveness for VMP versus MP plus thalidomide (MPT) and continuous lenalidomide (LEN) plus low-dose DEX (RD) for previously untreated and SCT-ineligible MM patients and BTZ versus LEN/DEX for relapsed/refractory MM patients could be unreliable because of the bias associated with model design and the indirect comparisons of treatment effects. CONCLUSION Published CEAs suggested that BTZ or BTZ-containing regimens were cost-effective when compared to most non-BTZ treatments for MM. However, the conflicting cost-effectiveness for VMP versus MPT for previously untreated and SCT-ineligible MM and BTZ versus LEN/DEX for relapsed/refractory MM needs more robust evidence for further clarification.
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Affiliation(s)
| | - Yicheng Yang
- Xian Janssen, Beijing, People’s Republic of China
| | - Yi Chen
- Normin Health Changsha Representative Office, Changsha, People’s Republic of China
| | - Fen Du
- Normin Health Changsha Representative Office, Changsha, People’s Republic of China
| | - Huan Zhan
- Normin Health Changsha Representative Office, Changsha, People’s Republic of China
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Zhan H, Ma Y, Lin CHS, Kaushansky K. JAK2 V617F-mutant megakaryocytes contribute to hematopoietic stem/progenitor cell expansion in a model of murine myeloproliferation. Leukemia 2016; 30:2332-2341. [PMID: 27133820 DOI: 10.1038/leu.2016.114] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2015] [Revised: 03/06/2016] [Accepted: 05/02/2016] [Indexed: 02/07/2023]
Abstract
The myeloproliferative neoplasms (MPNs) are characterized by hematopoietic stem/progenitor cell (HSPC) expansion and overproduction of mature blood cells. The JAK2V617F mutation is present in hematopoietic cells in a majority of patients with MPNs, but the mechanism(s) responsible for MPN stem cell expansion remain incomplete. One hallmark feature of the marrow in patients with MPNs is megakaryocyte (MK) hyperplasia. We report here that mice bearing a human JAK2V617F gene restricted exclusively to the MK lineage develop many of the features of a MPN. Specifically, these mice exhibit thrombocytosis, splenomegaly, increased numbers of marrow and splenic hematopoietic progenitors and a substantial expansion of HSPCs. In addition, wild-type mice transplanted with cells from JAK2V617F-bearing MK marrow develop a myeloproliferative syndrome with thrombocytosis and erythrocytosis as well as pan-hematopoietic progenitor and stem cell expansion. As marrow histology in this murine model of myeloproliferation reveals a preferentially perivascular localization of JAK2V617F-mutant MKs and an increased marrow sinusoid vascular density, it adds to accumulating data that MKs are an important component of the marrow HSPC niche, and that MK expansion might indirectly contribute to the critical role of the thrombopoietin/c-Mpl signaling pathway in HSPC maintenance and expansion.
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Affiliation(s)
- H Zhan
- Division of Hematology-Oncology, Department of Medicine, Northport VA Medical Center, Northport, NY, USA.,Department of Medicine, Division of Hematology-Oncology, Stony Brook University, Stony Brook, NY, USA
| | - Y Ma
- Department of Pathology, Stony Brook University, Stony Brook, NY, USA
| | - C H S Lin
- Department of Medicine, Division of Hematology-Oncology, Stony Brook University, Stony Brook, NY, USA
| | - K Kaushansky
- Office of the Sr Vice President, Health Sciences, Stony Brook Medicine, NY, USA
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Zhang QJ, Zhan H. [Progress on classification of workload and emotional workload evaluation]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:158-160. [PMID: 27014904 DOI: 10.3760/cma.j.issn.1001-9391.2016.02.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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Vermeulen P, Zhan H, Orieux F, Olivo-Marin JC, Lenkei Z, Loriette V, Fragola A. Out-of-focus background subtraction for fast structured illumination super-resolution microscopy of optically thick samples. J Microsc 2015; 259:257-68. [PMID: 25925333 DOI: 10.1111/jmi.12259] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Accepted: 03/24/2015] [Indexed: 11/27/2022]
Abstract
We propose a structured illumination microscopy method to combine super resolution and optical sectioning in three-dimensional (3D) samples that allows the use of two-dimensional (2D) data processing. Indeed, obtaining super-resolution images of thick samples is a difficult task if low spatial frequencies are present in the in-focus section of the sample, as these frequencies have to be distinguished from the out-of-focus background. A rigorous treatment would require a 3D reconstruction of the whole sample using a 3D point spread function and a 3D stack of structured illumination data. The number of raw images required, 15 per optical section in this case, limits the rate at which high-resolution images can be obtained. We show that by a succession of two different treatments of structured illumination data we can estimate the contrast of the illumination pattern and remove the out-of-focus content from the raw images. After this cleaning step, we can obtain super-resolution images of optical sections in thick samples using a two-beam harmonic illumination pattern and a limited number of raw images. This two-step processing makes it possible to obtain super resolved optical sections in thick samples as fast as if the sample was two-dimensional.
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Affiliation(s)
- P Vermeulen
- Laboratoire de physique et d'tude des matériaux, CNRS UMR 8213, ESPCI ParisTech, 10 rue Vauquelin, 75005, Paris, France
| | - H Zhan
- Institut de biologie de l'Ecole Normale Supérieure Paris, INSERM U1024, 46 rue d'Ulm, 75005, Paris, France
| | - F Orieux
- Institut d'astrophysique de Paris, UMR 7095, 98 boulevard Arago, 75014, Paris, France
| | - J-C Olivo-Marin
- Unit d'analyse d'images quantitatives, Institut Pasteur - CNRS URA 2582 25, rue du docteur Roux, 75015, Paris, France
| | - Z Lenkei
- Laboratoire Plasticité du cerveau, CNRS UMR 8249, ESPCI ParisTech, 10 rue Vauquelin, 75005, Paris, France
| | - V Loriette
- Laboratoire de physique et d'tude des matériaux, CNRS UMR 8213, ESPCI ParisTech, 10 rue Vauquelin, 75005, Paris, France
| | - A Fragola
- Laboratoire de physique et d'tude des matériaux, CNRS UMR 8213, ESPCI ParisTech, 10 rue Vauquelin, 75005, Paris, France
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Li JP, Lei YL, Zhan H. The effects of the king oyster mushroom Pleurotus eryngii (higher Basidiomycetes) on glycemic control in alloxan-induced diabetic mice. Int J Med Mushrooms 2015; 16:219-25. [PMID: 24941163 DOI: 10.1615/intjmedmushr.v16.i3.20] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The purpose of this study is to investigate the effects of Pleurotus eryngii on glycemic metabolism. Alloxan-induced hyperglycemic mice were used to study the effects of P. eryngii on blood glucose, glycohemoglobin, insulin secretion, damaged pancreatic β-cells, total antioxidant status (TAOS), and hepatic glycogen in hyperglycemic mice. Sixty diabetic mice were divided equally into 5 groups: the alloxan (AX)-induced hyperglycemic group, the AX and glibenclamide (GLI)-treated group, the AX and P. eryngii extracts (PEEs) 50-treated group (PEE 50 mg/kg), the AX and PEE100-treated group (PEE 100 mg/kg), and the AX and PEE200-treated group (PEE 200 mg/kg). The other 12 normal mice were injected intravenously with the normal saline and used as the control group. After PEE (100 and 200 mg/kg) was orally administered to the mice over 5 weeks, blood glucose and HbAlc were significantly decreased in AX-induced hyperglycemic mice (P < 0.05 and P < 0.01, respectively), whereas the level of insulin secretion was markedly elevated in (P < 0.05). The pancreatic β-cells damaged by AX partially and gradually recovered after PPE extract was administered to the hyperglycemic mice for 35 days. In addition, PEE treatment gradually increased the body weight and significantly increased the concentration of hepatic glycogen in hyperglycemic mice (P < 0.05). The results suggest that the action of PPE on glycemic metabolism occurs via increasing glycogen and insulin concentrations as well as recovering injured β-cells and reducing free radical damage. PPE may become a new potential hypoglycemic food for hyperglycemic people.
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Affiliation(s)
- Jian-Ping Li
- Department of Traditional Chinese Medicine, The First Additive Hospital of College Medicine of Zhejiang University, Hangzhou, China
| | - Ya-li Lei
- Department of Traditional Chinese Medicine, The First Additive Hospital of College Medicine of Zhejiang University, Hangzhou, China
| | - Huan Zhan
- Institute of Nonlinear Science, Academy of Armored Force Engineering, Beijing, China
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