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Luo YC, Lang ML, Cai WJ, Han ZY, Liu FY, Cheng ZG, Yu XL, Dou JP, Li X, Tan SL, Dong XJ, Liang P, Yu J. [Curative effect of percutaneous microwave ablation therapy on hepatocellular carcinoma survival: a 15-year real-world study]. Zhonghua Gan Zang Bing Za Zhi 2024; 32:332-339. [PMID: 38733188 DOI: 10.3760/cma.j.cn501113-20231124-00223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/13/2024]
Abstract
Objective: To evaluate the long-term efficacy of percutaneous microwave ablation (MWA) therapy for hepatocellular carcinoma. Methods: 2054 cases with Barcelona Clinic Liver Cancer (BCLC) stage 0~B at the Fifth Medical Center of the Chinese People's Liberation Army General Hospital from January 2006 to September 2020 were retrospectively collected. All patients were followed up for at least 2 years. The primary endpoint of overall survival and secondary endpoints (tumor-related survival, disease-free survival, and postoperative complications) of patients treated with ultrasound-guided percutaneous MWA were analyzed. Kaplan-Meier method was used for stratified survival rate analysis. Fine-and-Gray competing risk model was used to analyze overall survival. Results: A total of 5 503 HCC nodules [mean tumor diameter (2.6±1.6) cm] underwent 3 908 MWAs between January 2006 and September 2020, with a median follow-up time of 45.6 (24.0 -79.2) months.The technical effectiveness rate of 5 375 tumor nodules was 97.5%. The overall survival rates at 5, 10, and 15-years were 61.6%, 38.8%, and 27.0%, respectively. The tumor-specific survival rates were 67.1%, 47.2%, and 37.7%, respectively. The free tumor survival rates were 25.8%, 15.7%, and 9.9%, respectively. The incidence rate of severe complications was 2.8% (108/3 908). Further analysis showed that the technical effectiveness and survival rate over the passing three time periods from January 2006-2010, 2011-2015, and 2016-September 2020 were significantly increased, with P < 0.001, especially for liver cancer 3.1~5.0 cm (P < 0.001). Conclusion: Microwave ablation therapy is a safe and effective method for BCLC stage 0-B, with significantly enhanced technical efficacy and survival rate over time.
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Affiliation(s)
- Y C Luo
- Department of Ultrasound, Fifth Medical Center of Chinese PLA General Hospital, Beijng 100166, China
| | - M L Lang
- Department of Ultrasound, Fifth Medical Center of Chinese PLA General Hospital, Beijng 100166, China
| | - W J Cai
- Department of Ultrasound, Fifth Medical Center of Chinese PLA General Hospital, Beijng 100166, China
| | - Z Y Han
- Department of Ultrasound, Fifth Medical Center of Chinese PLA General Hospital, Beijng 100166, China
| | - F Y Liu
- Department of Ultrasound, Fifth Medical Center of Chinese PLA General Hospital, Beijng 100166, China
| | - Z G Cheng
- Department of Ultrasound, Fifth Medical Center of Chinese PLA General Hospital, Beijng 100166, China
| | - X L Yu
- Department of Ultrasound, Fifth Medical Center of Chinese PLA General Hospital, Beijng 100166, China
| | - J P Dou
- Department of Ultrasound, Fifth Medical Center of Chinese PLA General Hospital, Beijng 100166, China
| | - X Li
- Department of Ultrasound, Fifth Medical Center of Chinese PLA General Hospital, Beijng 100166, China
| | - S L Tan
- Department of Ultrasound, Fifth Medical Center of Chinese PLA General Hospital, Beijng 100166, China
| | - X J Dong
- Department of Ultrasound, Fifth Medical Center of Chinese PLA General Hospital, Beijng 100166, China
| | - P Liang
- Department of Ultrasound, Fifth Medical Center of Chinese PLA General Hospital, Beijng 100166, China
| | - J Yu
- Department of Ultrasound, Fifth Medical Center of Chinese PLA General Hospital, Beijng 100166, China
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Dai Y, Yu K, Zhu HY, Li H, Xie J, Luo YC, Nie DP, Du HJ, Zhu CX, Xu YM. Determination of the water vapor transmission rate of cellulose-based papers by multiple headspace extraction analysis. J Chromatogr A 2023; 1710:464404. [PMID: 37769425 DOI: 10.1016/j.chroma.2023.464404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 08/05/2023] [Accepted: 09/19/2023] [Indexed: 09/30/2023]
Abstract
This paper presents a multiple headspace extraction (MHE) analysis technique to determine the water vapor transmission rate of cellulose-based papers. The water vapor passing through the sample in a closed headspace vial is determined by MHE-gas chromatography. The results show that the employed method offers good precision (the relative standard deviation < 3.49 %) and good accuracy. The method is rapid and accurate, and is promising for the determination of the water vapor transmission rate of cellulose-based papers in future studies.
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Affiliation(s)
- Yi Dai
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, China; State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, China.
| | - Kang Yu
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, China
| | - Hong-Yue Zhu
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, China
| | - Huan Li
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, China
| | - Jiao Xie
- Technology Center, China Tobacco Yunnan Industrial Co. Ltd., Kunming, China
| | - Ying-Chun Luo
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, China
| | - Deng-Pan Nie
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, China
| | - Hai-Jun Du
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, China
| | - Chu-Xing Zhu
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, China
| | - Yue-Ming Xu
- Cigarette Factory, HongyunHonghe Tobacco (Group) Co., Ltd., Qujing, China.
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Luo YC, Tang QL, Yang XM, Xiao ZA, Zhu GC, Yin DH, Yang Q, Huang PY, Zeng SY, Li SS. [Application of supraclavicular fasciocutaneous island flap for reconstruction after removal of tumors in parotid and auricle area]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:486-491. [PMID: 37150996 DOI: 10.3760/cma.j.cn115330-20221012-00606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Objective: To evaluate the efficacy of supraclavicular fasciocutaneous island flap (SIF) for repairing the defect of parotid or auricle regions after tumor resection. Methods: From February 2019 to June 2021, 12 patients (11 males and 1 female, aged 54-77 years old), of whom 4 with parotid adenoid cystic carcinoma and 8 with auricular basal cell carcinoma underwent reconstruction surgery for postoperative defects in the parotid gland area and auricular area with SIF in the Department of Otorhinolaryngology Head and Neck Surgery, the Second Xiangya Hospital of Central South University and their clinical data were retrospectively analyzed. Size of the SIF, time for harvesting SIF, neck lymph node dissection and postoperative complications were recorded. Results: The flap areas were (6-9) cm × (8-13) cm, and the harvesting time for SIF ranged from 40 to 80 min, averaging 51.7 min. The donor sites were directly closed. All patients underwent ipsilateral levels Ⅰ-Ⅲ neck dissection, with 4 cases undergoing additional level Ⅳ neck dissection and 2 cases undergoing level Ⅳ-Ⅴ neck dissection. Of the 12 SIF, 10 were completely survival and 2 had flap arterial crisis with partial flap necrosis, in addition, 1 had donor site wound dehiscence. With follow-up of 10-42 months, there were no tumor recurrences in 10 patients, 1 patient was lost to follow-up at 10 months postoperatively, and 1 patient experienced local tumor recurrence at 11 months after surgery and died 15 months later. Conclusion: SIF is an easily harvested flap with good skin features matching the skin in parotid and auricle regions and less damage to donor site, and this flap has no need for microvascular anastomosis technique. SIF is feasible and effective for repairing defects in parotid and auricle area.
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Affiliation(s)
- Y C Luo
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Q L Tang
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - X M Yang
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Z A Xiao
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - G C Zhu
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - D H Yin
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Q Yang
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - P Y Huang
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - S Y Zeng
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - S S Li
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Xiangya Hospital, Central South University, Changsha 410011, China
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4
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Liu XY, Li W, Yu K, Fan ZY, Luo B, Nie DP, Luo YC, Dai Y, Wang H. Determination of carbonate content in barite ore by headspace gas chromatography. J Sep Sci 2023; 46:e2200656. [PMID: 36285382 DOI: 10.1002/jssc.202200656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 10/13/2022] [Accepted: 10/22/2022] [Indexed: 01/11/2023]
Abstract
This paper reports a method for determining the carbonate content in barite ore using headspace gas chromatography. Based on the acidification reaction, the carbonate in the barite ore was converted to CO2 in a closed headspace vial. When the carbonate content was significant, the pressure caused changes in the CO2 and O2 signals and affected the measurement accuracy. It was found that carbonate content is proportional to the intensity ratio of the CO2 to O2 signals. Thus, the carbonate content in barite ore can be measured indirectly using a theoretical model. The results showed that the carbonate in 3 g of barite ore sample with a particle size of 74 μm could react completely with a hydrochloric acid solution (2 mol/L) at 65°C for 5 min. The method described herein had good precision (relative standard deviation < 4.14%) and accuracy (relative differences < 6.12%). Further, the limit of quantification was 0.07 mol/L. Owing to its simplicity and speed, this method can be used for the batch determination of carbonate content in barite ore.
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Affiliation(s)
- Xue-Yan Liu
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, P. R. China
| | - Wei Li
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, P. R. China
| | - Kang Yu
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, P. R. China
| | - Zhi-Yu Fan
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, P. R. China
| | - Bin Luo
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, P. R. China
| | - Deng-Pan Nie
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, P. R. China
| | - Ying-Chun Luo
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, P. R. China
| | - Yi Dai
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, P. R. China
| | - Hao Wang
- Technology Center, China Tobacco Yunnan Industrial Co. Ltd., Kunming, P. R. China
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Li W, Liu XY, Yu K, Luo YC, Nie DP, Dai Y, Wang H. Determination of Ethanol in Flavor Microcapsules by Ultrasound Assisted Total Vaporization Headspace – Gas Chromatography (TV HS-GC). ANAL LETT 2022. [DOI: 10.1080/00032719.2022.2134888] [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: 11/01/2022]
Affiliation(s)
- Wei Li
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, China
| | - Xue-Yan Liu
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, China
| | - Kang Yu
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, China
| | - Ying-Chun Luo
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, China
| | - Deng-Pan Nie
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, China
| | - Yi Dai
- School of Chemical Engineering, Guizhou Minzu University, Guiyang, China
| | - Hao Wang
- Technology Center, China Tobacco Yunnan Industrial Company, Kunming, China
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6
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Chen S, Luo YC, Huang CY, Liang JY, Feng YH, Xu JX, Wu Z. [Application of Broadrick occlusal plane analyzer in the functional and esthetic rehabilitation of a patient with severe dental erosion]. Zhonghua Kou Qiang Yi Xue Za Zhi 2022; 57:749-752. [PMID: 35790516 DOI: 10.3760/cma.j.cn112144-20220107-00006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- S Chen
- Department of Prosthodontics, Stomatology Hospital of Guangzhou Medical University & Guangzhou Institute of Oral Disease & Key Laboratory of Oral Medicine, Guangzhou 510140, China
| | - Y C Luo
- Department of Prosthodontics, Stomatology Hospital of Guangzhou Medical University & Guangzhou Institute of Oral Disease & Key Laboratory of Oral Medicine, Guangzhou 510140, China
| | - C Y Huang
- Department of Prosthodontics, Stomatology Hospital of Guangzhou Medical University & Guangzhou Institute of Oral Disease & Key Laboratory of Oral Medicine, Guangzhou 510140, China
| | - J Y Liang
- Department of Prosthodontics, Stomatology Hospital of Guangzhou Medical University & Guangzhou Institute of Oral Disease & Key Laboratory of Oral Medicine, Guangzhou 510140, China
| | - Y H Feng
- Department of Prosthodontics, Stomatology Hospital of Guangzhou Medical University & Guangzhou Institute of Oral Disease & Key Laboratory of Oral Medicine, Guangzhou 510140, China
| | - J X Xu
- Department of Prosthodontics, Stomatology Hospital of Guangzhou Medical University & Guangzhou Institute of Oral Disease & Key Laboratory of Oral Medicine, Guangzhou 510140, China
| | - Z Wu
- Department of Prosthodontics, Stomatology Hospital of Guangzhou Medical University & Guangzhou Institute of Oral Disease & Key Laboratory of Oral Medicine, Guangzhou 510140, China
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7
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Yang D, Diao XW, Liu J, Chen YX, Luo YC, Cai XH. An Interesting Small Molecule Fluorescent Probe for A Narrow Range (12.5~13) pH and DMSO Detection. LETT ORG CHEM 2022. [DOI: 10.2174/1570178619666220511150149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Aims:
The development of a sensitive and visual analytical method for detecting and monitoring the change of pH has always attracted great interest because it plays significant role in chemical reactions, environmental monitoring, and biological systems.
Methods:
In this paper, a simple condensation reaction from readily available substrates 2-hydroxy-1-naphthylaldehyde and malononitrile has been carried out to produce probe L with good aggregation-induced luminescence, and its chemical structure was confirmed by 1H NMR, 13C NMR and ESI-MS.
Objective:
There is a conjugated system containing electron-withdrawing cyano group and electron-donating hydroxyl group in molecular structure of probe L, and which exhibits obvious fluorescence intensity and visible color change through intramolecular charge transfer (ICT) under different pH conditions.
Results:
Probe L assumes excellent fluorescence intensity in DMF/H2O (1:9, v:v) mixed solvent system, and exhibits good reversibility in a very narrow range of pH values (pH = 12.5~13), which indicates that it can be used for the analysis and visual detection to pH change in DMF/H2O system.
Conclusion:
In addition, probe L can also selectively identify solvent DMSO by the induction of fluorescence quenching, which means that probe L may be used as the indicator for the detection and monitoring of trace amount of DMSO.
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Affiliation(s)
- Di Yang
- School of Chemical Engineering, GuizhouMinzu University, Guizhou, Guiyang 550025, P. R. China
| | - Xue-Wen Diao
- School of Chemical Engineering, GuizhouMinzu University, Guizhou, Guiyang 550025, P. R. China
| | - Ji Liu
- School of Chemical Engineering, GuizhouMinzu University, Guizhou, Guiyang 550025, P. R. China
| | - Ya-Xin Chen
- School of Chemical Engineering, GuizhouMinzu University, Guizhou, Guiyang 550025, P. R. China
| | - Ying-Chun Luo
- School of Chemical Engineering, GuizhouMinzu University, Guizhou, Guiyang 550025, P. R. China
| | - Xiao-Hua Cai
- School of Chemical Engineering, GuizhouMinzu University, Guizhou, Guiyang 550025, P. R. China
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Wu JC, Wu Z, Yu P, Yang S, Luo YC, Liu C. [Cone-beam CT evaluation of the Monson's spherical radius of young adults in Guangdong]. Zhonghua Kou Qiang Yi Xue Za Zhi 2021; 56:196-199. [PMID: 33557505 DOI: 10.3760/cma.j.cn112144-20200517-00281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To measure and analyze the spherical radius of Monson of normal young people in Guangdong province using cone-beam CT (CBCT), and to establish a personalized measurement method of the spherical radius of Monson to provide a reference for clinical application of Monson spherical radius in occlusal reconstruction. Methods: Sixty healthy young adults from physical examination population at Stomatology Hospital of Guangzhou Medical University [30 males and 30 females, aged (22.1±2.0) years 18-26 years) were recruited, and their CBCT were taken. Three-dimensional reconstruction of CBCT data was carried out, and the reconstructed models were fixed, traced and measured. The difference of Monson spherical radius between male and female was compared by using a single sample t-test. Results: The Monson spherical radius was (100.72±4.89) mm. The Monson spherical radius of male and female were (103.48±4.19) mm and (97.97±3.93) mm respectively. The difference between male and female was statistically significant (P<0.01). Conclusions: CBCT can be used to accurately measure the spherical radius of Monson and can be used as a reference for reconstruction of occlusal plane.
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Affiliation(s)
- J C Wu
- Department of Prosthodontics, Stomatology Hospital of Guangzhou Medical University & Guangzhou Institute of Oral Disease & Key Laboratory of Oral Medicine, Guangzhou 510140, China
| | - Z Wu
- Department of Prosthodontics, Stomatology Hospital of Guangzhou Medical University & Guangzhou Institute of Oral Disease & Key Laboratory of Oral Medicine, Guangzhou 510140, China
| | - P Yu
- Department of Prosthodontics, Stomatology Hospital of Guangzhou Medical University & Guangzhou Institute of Oral Disease & Key Laboratory of Oral Medicine, Guangzhou 510140, China
| | - S Yang
- Department of Prosthodontics, Stomatology Hospital of Guangzhou Medical University & Guangzhou Institute of Oral Disease & Key Laboratory of Oral Medicine, Guangzhou 510140, China
| | - Y C Luo
- Department of Prosthodontics, Stomatology Hospital of Guangzhou Medical University & Guangzhou Institute of Oral Disease & Key Laboratory of Oral Medicine, Guangzhou 510140, China
| | - C Liu
- Department of Orthodontics, Stomatology Hospital of Guangzhou Medical University & Guangzhou Institute of Oral Disease & Key Laboratory of Oral Medicine, Guangzhou 510140, China
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Luo QQ, Luo YC, Ren XL. [Comparison of HIV infection risk between 15 to 24 year-old student men who have sex with men and non-student men who have sex with men: a cross-sectional study]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:1435-1440. [PMID: 33333663 DOI: 10.3760/cma.j.cn112150-20191217-00938] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the difference of HIV infection risk among student Men who have sex with men (sMSM) attending secondary vocational colleges or high school, sMSM attending universities or above, and non-student men who have sex with men (MSM). Methods: A cross-sectional study was conducted between July and October, 2019. Inclusion criteria of participants include: 15-24 years old, male at birth, had homosexual oral or anal intercourse before survey, self-reported HIV negative or unclear. Demographic information, HIV testing history and social media usage were collected by a self-reporting questionnaire, the HIV risk assessment tool was used for HIV infection risk assessment. We used Logistic regression to analyze the difference of HIV infection risk among student sMSM attending secondary vocational colleges or high school, sMSM attending universities or above, and non-student MSM. Results: Of the 1 707 participants, 45% (771 projects) reported homosexual debut before the age of 19, the proportion of HIV self-testing was 49% (833 projects), and 34% (587 projects) received facility-based testing. Comparing with sMSM attending universities or above, non-student MSM and sMSM attending secondary vocational colleges or high school had higher probability of medium and high HIV infection risk [OR(95%CI): 1.53(1.10-2.12), 1.80(1.06-3.07), respectively], while the probability of medium and high HIV infection risk between sMSM attending secondary vocational colleges and non-student MSM was not statistically different. Conclusion: Non-student MSM and sMSM attending secondary vocational college or high school have higher risk of HIV infection, health staff should allocate more education resources to Non-student MSM and sMSM attending secondary vocational college or high school, in order to alleviate HIV threat to them.
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Affiliation(s)
- Q Q Luo
- School of Nursing, Binzhou Medical University, Yantai 264003, China
| | - Y C Luo
- Pharmaceutical Department, Yantai Affiliated Hospital of Binzhou Medical University, Yantai 264100, China
| | - X L Ren
- STD/AIDS Prevention and Control Institute, Beijing Center for Disease Control and Prevention, Beijing 100013, China
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10
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Chen Y, Wang KJ, Luo YC, Wang BZ, Zhang MM, Xu YQ, Yang YN, Ma YT. [Predictive value of neutrophil/lymphocyte ratio on myocardial injury in severe COVID-19 patients]. Zhonghua Xin Xue Guan Bing Za Zhi 2020; 48:572-579. [PMID: 32842269 DOI: 10.3760/cma.j.cn112148-20200422-00336] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the predictive value of neutrophil/lymphocyte ratio (NLR) on myocardial injury in severe COVID-19 patients. Methods: In this single-center retrospective cohort study, we collected and analyzed data form 133 severe COVID-19 patients admitted to Renmin Hospital of Wuhan University (Eastern District) from January 30 to February 18, 2020. Patients were divided into myocardial injury group (n=29) and non-myocardial injury group (n=104) according the presence or absence of myocardial injury. The general information of patients was collected by electronic medical record database system. All patients were followed up for 30 days, the organ injury and/or dysfunction were monitored, the in-hospital death was compared between the two groups, and the disease progression was reevaluated and classified at 14 days after initial hospitalization. Logistic regression analysis was performed to identify risk factors of myocardial injury in severe COVID-19 patients. The ROC of NLR was calculated, and the AUC was determined to estimate the optimal cut-off value of NLR for predicting myocardial injury in severe cases of COVID-19. Results: There was statistical significance in age, respiratory frequency, systolic blood pressure, symptoms of dyspnea, previous chronic obstructive pulmonary disease, coronary heart disease history, white blood cells, neutrophils, lymphocytes, platelets, C-reactive protein, platelet counting, aspartate transaminase, albumin, total bilirubin, direct bilirubin, urea, estimated glomerular filtration rate, total cholesterol, low-density lipoprotein cholesterol, D-dimer, CD3+, CD4+, partial pressure of oxygen, partial pressure of CO2, blood oxygen saturation, other organ injury, clinical outcome and prognosis between patients with myocardial injury and without myocardial injury (all P<0.05). Multivariate logistic regression analysis showed that NLR was a risk factor for myocardial injury (OR=1.066,95%CI 1.021-1.111,P=0.033). ROC curve showed that NLR predicting AUC of myocardial injury in severe COVID-19 patients was 0.774 (95%CI 0.694-0.842), the optimal cut-off value of NLR was 5.768, with a sensitivity of 82.8%, and specificity of 69.5%. Conclusion: NLR may be used to predict myocardial injury in severe COVID-19 patients.
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Affiliation(s)
- Y Chen
- Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - K J Wang
- Department of Respiratory, Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China
| | - Y C Luo
- Department of Respiratory, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - B Z Wang
- Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - M M Zhang
- Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Y Q Xu
- Department of Cadre Health, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Y N Yang
- Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Y T Ma
- Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
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Luo YC, Lai YR, Xia N, Yang PJ, Wen YM, Shen J, Liang YZ. [Research progress on metabolic endocrine diseases in patients with thalassemia]. Zhonghua Nei Ke Za Zhi 2019; 58:154-157. [PMID: 30704205 DOI: 10.3760/cma.j.issn.0578-1426.2019.02.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Y C Luo
- Department of Endocrinology, The Second Affiliated Hospital of Guangxi Medical University, Nanning 530007, China
| | - Y R Lai
- Department of Hematology, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - N Xia
- The Guangxi Zhuang Autonomous Region Health Commission, Nanning 530021, China
| | - P J Yang
- Department of Endocrinology, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Y M Wen
- Department of Endocrinology, Guangxi International Zhuang's Hospital, Nanning 530201, China
| | - J Shen
- Department of Endocrinology, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Y Z Liang
- Department of Endocrinology, The Second Affiliated Hospital of Guangxi Medical University, Nanning 530007, China
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Luo YC, Zhang YQ, Hu K, Zhang Z, Xiong MQ, Hu WH, Dong ML, Shang M. [5-HT(2A) receptor/protein kinase C pathway in mediating long-term facilitation of carotid sinus nerve discharge in chronic intermittent hypoxia rats]. Zhonghua Jie He He Hu Xi Za Zhi 2018; 41:611-615. [PMID: 30138970 DOI: 10.3760/cma.j.issn.1001-0939.2018.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Objective: To explore the role of 5-HT(2A)R/PKC pathway in mediating long-term facilitation (LTF) of carotid sinus nerve (CSN) discharge in chronic intermittent hypoxia (CIH) rats. Methods: With number table, 24 adult SD rats were randomly divided into saline control group (group A, n=6), 5-HT(2A)R antagonist (ketanserin) group (group B, n=6), PKC inhibitor (PKC θ-pseudosubstrate) group (group C, n=6) and combined ketanserin with PKC θ-pseudosubstrate group (group D, n=6). All rats were placed into the animal chambers for CIH treatment, 8 h per day (from 9: 00 to 17: 00) for 4 consecutive weeks. 28 days later, 5 min × 3 times of stimulation with acute intermittent hypoxia (AIH) were given, after that, stable CSN discharge activities were recorded and compared before and after intravenous injection of saline (group A), ketanserin (group B), PKC θ-pseudosubstrate (group C) or ketanserin + PKC θ-pseudosubstrate (group D), respectively. Results: There were no significant difference in the baseline (before AIH stimulation) average peak amplitude of CSN discharge among the four groups (P>0.05). In group A, the amplitude of CSN discharge at 30 min and 60 min after AIH were (5.01 ± 0.53) μV and (4.95 ± 0.34) μV respectively, which were significantly higher than that before AIH (P<0.01). The results implied that the CSN LTF could be induced by AIH in CIH pre-treatment rats. In group B, the amplitude of CSN discharge at 30 min and 60 min after AIH were (3.79 ± 0.42) μV and (3.73 ± 0.46) μV, respectively, which were still significantly higher than that before AIH (P<0.01), showing that carotid sinus nerve LTF couldn't be completely blocked by 5-HT(2A)R antagonist in rats. After injection of PKC θ-pseudosubstrate or ketanserin + PKC θ-pseudosubstrate in group C or D, there were no significant differences in CSN discharge amplitude before and after AIH (P>0.01), suggesting that inhibition of PKC alone or 5-HT(2A)R/PKC pathway could completely block the LTF of CSN. Conclusion: 5-HT(2A)R/PKC pathway was involved in mediating long-term facilitation of carotid sinus nerve discharge in CIH rats.
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Affiliation(s)
- Y C Luo
- Department of Respiratory Disease, Renmin Hospital of Wuhan University, Wuhan 430060, China
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Mirzaei B, Silva JRG, Luo YC, Liu XX, Wei L, Hayton DJ, Gao JR, Groppi C. Efficiency of multi-beam Fourier phase gratings at 1.4 THz. Opt Express 2017; 25:6581-6588. [PMID: 28381005 DOI: 10.1364/oe.25.006581] [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: 06/07/2023]
Abstract
We compare the results of simulated and measured power efficiency and far-field beam pattern, for two reflective Fourier phase gratings, designed to generate 2 × 2 and 2 × 4 beams respectively from a single-beam, coherent source at 1.4 THz. The designed surface structures were manufactured on aluminum plates by a computer numerical control (CNC) micro-milling machine. Despite small differences between the designed and fabricated gratings, we measured power efficiencies of both gratings to be around 70%, which is in a good agreement with the simulated values. We also find a good agreement between the simulated and measured diffracted beam size and spatial distribution. We demonstrate the application of both gratings as multiple beam local oscillators to simultaneously pump (or operate) a 4-pixel array of superconducting heterodyne mixers.
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Yu QW, Zhang P, Zhou SB, Hu Y, Ji MX, Luo YC, You HL, Yao ZX. [The relationship between accommodative accuracy at different near-work distances and early-onset myopia]. Zhonghua Yan Ke Za Zhi 2017; 52:520-6. [PMID: 27531113 DOI: 10.3760/cma.j.issn.0412-4081.2016.07.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To observe the accommodative accuracy of children with early-onset myopia at different near-work distances, and discuss the relationship between accommodative accuracy and early-onset myopia. METHODS This was a case-control study. Thirty-seven emmetropic children, 41 early-onset myopic children without correction, and 39 early-onset myopic children with spectacles, aged 7 to 13 years, were included. Measures of refractive errors and accommodative accuracy at four near-work distances, including 50 cm, 40 cm, 30 cm, and 20 cm, were made using the binocular fusion cross cylinder (FCC) of an automatic phoropter. RESULTS Most candidates showed accommodative lags, including the children with emmetropia. The ratio of lags in all candidates at different near-work distances was 75.21% (50 cm), 87.18% (40 cm), 92.31% (30 cm), and 98.29% (20 cm), respectively. All accommodative accuracies became worse, and the accommodative lag ratio and values of FCC increased, along with the shortening of the distance. The difference in accommodative accuracy among groups was statistically significant at 30 cm (χ(2)=7.852, P= 0.020) and 20 cm (χ(2)=6.480, P=0.039). The values of FCC among groups were significantly different at 30 cm (F=3.626, P=0.030) and 20 cm (F=3.703, P=0.028), but not at 50 cm and 40 cm (P>0.05). In addition, the FCC values of 30 cm and 20 cm had a statistically significant difference between myopic children without correction [(1.25±0.44) D and (1.76±0.43) D] and emmetropic children [(0.95±0.52) D and (1.41±0.58) D] (P=0.012, 0.008). The correlation between diopters of myopia and accommodative accuracy at different nearwork distances was not statistically significant (P>0.05). However, the correlation between diopters of myopia and the accommodative lag value (FCC) at 20 cm was statistically significant (r=0.246, P=0.028). CONCLUSIONS The closer the near-work distance is, the worse the accommodative accuracy is. This is more significant in early-onset myopia, especially myopia without correction, than emmetropia. Wearing spectacles may improve the threshold and sensitivity of accommodations, and the accommodative accuracy at near-work distances (<30 cm) to some extent. The poor accommodative accuracy at near-work distances may be not related to early-onset myopia, but the value of FCC (20 cm) is related to early-onset myopia. The higher the FCC value is, the higher the diopter is. (Chin J Ophthalmol, 2016, 52: 520-524).
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Affiliation(s)
- Q W Yu
- Department of Ophthalmology, University-town Hospital of Chongqing Medical University, Chongqing 401331, China
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Luo YC, Sun S, Xiao YH. [Modification of the composite resin with the hyperbranched polyester and evaluation of the mechanical properties of the modified composite resin]. Zhonghua Kou Qiang Yi Xue Za Zhi 2016; 51:248-253. [PMID: 27117219 DOI: 10.3760/cma.j.issn.1002-0098.2016.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To study the effect of hyperbranched polyester(HBP)on mechanical properties of the conventional resin matrix. METHODS Two hyperbranched monomers(HBP2-X and HBP2-Y)were synthesized and incorporated at 40%(by mass)into a 2∶1(by mass)bisphenol-A diglycidyl methacrylate(Bis-GMA): triethylene glycol dimethacrylate(TEGDMA)resin. Bis-GMA/TEGDMA without the incorporation of hyperbranched polyester was used as control(n=8 per group). The mechanical properties of the modified neat resin, including polymerization volumetric shrinkage, Vickers hardness, water absorption and dissolution rate, as well as the flexural strength, compressive strength and diametral tensile strength of the composite resin with different content of filler(0%, 30%, 50%, 70%)were measured. Mechanical properties of the composite resin were measured by universal testing machine. The results were analyzed by the ANOVA and LSD-t-test. RESULTS The resin with HBP greatly decreased the polymerization shrinkage of the composite resin, and the value of group X was(6.32±0.49)%, and that of group Y was(6.31±0.68)%, whereas that of the control group was(8.14 ± 0.53)%. The value of volumetric shrinkage of the modified groups were significantly lower than that of the control group(P<0.05). By adding HBP, the hardness value of group X([198 ± 5]MPa)and group Y([177 ± 4]MPa)were significantly lower than that of the control group([214±6]MPa)(P<0.05). The HBP significantly influenced the water sorption and solubility of the neat resin(P<0.05). For the composite materials, with 70% inorganic filler, there were no significant difference in the value of flexural strength among the groups(P>0.05). There was no significant difference in the value of compressive strength, between group X([244 ± 13]MPa)and the standard group([234 ± 17]MPa)(P>0.05). However, they were significantly higher than that in group Y([204 ± 24]MPa)(P<0.05). For the value of diametral tensile strength, there was no significant difference between group Y([36.4 ± 2.1]MPa)and the control group([34.4 ± 2.9]MPa)(P>0.05), but both were significantly lower than that in group X([41.1 ± 3.0]MPa)(P<0.05). CONCLUSIONS Although there were certain effect on the mechanical properties of the resin that was modified with the HBP, we should make further analysis and study based on the property of low volumetric shrinkage, to strive for the development of low volumetric shrinkage of HBP, without affecting its mechanical properties.
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Affiliation(s)
- Y C Luo
- Department of Stomatology, Kunming General Hospital of Chengdu Military Command, Teaching Hospital of Kunming Medical University, Kunming 650032, China
| | - S Sun
- Department of Stomatology, Kunming General Hospital of Chengdu Military Command, Teaching Hospital of Kunming Medical University, Kunming 650032, China
| | - Y H Xiao
- Department of Stomatology, Kunming General Hospital of Chengdu Military Command, Teaching Hospital of Kunming Medical University, Kunming 650032, China
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Luo YC, Du P, Zhao JZ, Duan XJ, Hou YJ, Pan H, Shao SH. A multiplex touchdown PCR for detection of Streptococcus pneumoniae, Haemophilus influenzae type b and Mycobacterium tuberculosis complex in sputum samples. Trop Biomed 2012; 29:422-428. [PMID: 23018505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Rapid and accurate detection of Streptococcus pneumoniae (Sp), Haemophilus influenzae type b (Hib) and Mycobacterium tuberculosis complex (MTBC) in sputum by conventional methods remains problematic. Primers based on capsular polysaccharide biosynthesis gene (cpsA), the region II of the capsulation locus (cap), the insertion sequence IS6110 were designed for Sp, Hib, MTBC respectively. These primers were incorporated in a multiplex touchdown PCR assay for simultaneous detection of Sp, Hib and MTBC. The multiplex touchdown PCR assay was evaluated using standard strains and clinical sputum samples. The multiplex touchdown PCR assay showed 100% specificity in identifying Sp, Hib, MTBC from pure culture of standard strains. The sensitivities of the multiplex touchdown PCR assay were 94%, 98%, 98% for detection of Sp, Hib and MTBC respectively based on culture results while evaluated using 492 consecutive qualified clinical sputum samples; the specificities were all 100%. This highly sensitive and specific multiplex touchdown PCR assay offers a rapid and simple method for detection of Sp, Hib and MTBC in clinical sputum samples.
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Affiliation(s)
- Y C Luo
- School of Medical Science and Laboratory Medicine, Jiangsu University, Zhenjiang 212013, China
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Abstract
The aim of the present study was to examine the interactions of fructose and fat on glucose regulation and lipid metabolism in CD-1 mice. Mice were assigned in five groups. The control group was provided with tap water and a gavage of vehicle; four experimental groups were treated with 150 g/l fructose solution (FS1), fat emulsion (FE), 150 g/l fructose solution and fat emulsion (FS1+FE), or 70 g/l fructose solution and fat emulsion (FS2+FE) for 12 weeks. At the end of the 8th week, both oral glucose tolerance test and insulin tolerance test were conducted. Lipid profiles in serum, liver, and red gastrocnemius muscle, and serum insulin and glucose concentrations were assessed. The FS1+FE group showed combined glucose intolerance (CGI) and decrease of insulin sensitivity. The low-density lipoprotein cholesterol (LDL-C) concentrations were elevated in all experimental groups (p<0.05). The combined diet groups showed statistically significant (p<0.01) increase in total cholesterol (TC) level in comparison with the control FE (p<0.05), or FS1 (p<0.05) group. Triglyceride levels in liver and red gastrocnemius muscle were significantly increased in FE and combined groups. In conclusion, combination of FE and 150 g/l fructose solution for 8 weeks led to CGI. Fructose enhanced the adverse effect of FE on glucose regulation with increasing percentage in the diet. Furthermore, there was a synergistic effect of fructose and fat on elevating the serum TC level.
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Affiliation(s)
- H J Zhang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, P. R. China
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Luo YC, Zeng QR, Wu G, Luan ZK, Yang RB, Liao BH. Effect of beta-cyclodextrin compounds on the solubilization of three selected pesticides and their toxicity with methyl parathion to Rana tigrina tadpoles. Bull Environ Contam Toxicol 2003; 70:998-1005. [PMID: 12719827 DOI: 10.1007/s00128-003-0081-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Affiliation(s)
- Y C Luo
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Post Office 2871, Beijing 100085, People's Republic of China
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Abstract
A total of 122 adult human pubes (66 males and 56 females) are used in this study of a discriminant function analysis for determining sex from four pubic measurements: the angle formed by the middle line of the superior ramus and inferior ramus of pubis (in degrees, X1), subpubic angle (in degrees, X2), the minimum distance from the symphyseal surface to the obturator (in millimeters, X3), and the minimum thickness of the ischiopubic ramus (in millimeters, X4). The method introduced by Fisher is used. Using the formula Y = 0.270 mean1-0.985mean2-0.761mean3 + 1.806mean4,F = 200 F = 200 (F > F0.01(4,117), P < 0.01), section point -32.47, an accuracy of 100% could be achieved for 230 pubes (130 males, 100 females).
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Affiliation(s)
- Y C Luo
- Department of Oral Anatomy and Physiology, Faculty of Stomatology, Hunan Medical University Changsha, People's Republic of China
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Campos L, Vu Van H, Ville D, Imbert C, Gentilhomme O, Luo YC, Fiere D, Viala JJ. Serum beta 2 microglobulin in adult myeloid acute leukemias. Blut 1984; 48:221-6. [PMID: 6370339 DOI: 10.1007/bf00319813] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Serum beta 2 microglobulin levels, measured by radioimmunoassay (Phadebas test), were found increased in acute myeloid leukemias at diagnosis. Serum beta 2 microglobulin levels were significantly higher in patients with monocytic leukemias (13 patients, M4-M5 FAB classification) than in those with other cytological types (18 patients). Beta 2 microglobulin levels at diagnosis were correlated with serum lysozyme levels, but they were not correlated with blood blast counts, serum LDH and ferritin levels. 195 serum beta 2 microglobulin measurements were made serially in 30 patients with acute myeloid leukemias in first remission. Compared to values at diagnosis, beta 2 microglobulin levels in remission were significantly decreased. Out of 30 patients in remission 12 had increased serum beta 2 microglobulin levels (greater than 3 mg/l). Serial measurements were not predictive for relapses.
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