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Lei J, Lü W, Wang W, Wang H, Guo X, Cheng P, Gong M, Liu L. [Comparison of the microbiota diversity between autogenous and anautogenous Culex pipiens pallens]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2024; 36:52-58. [PMID: 38604685 DOI: 10.16250/j.32.1374.2023204] [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: 04/13/2024]
Abstract
OBJECTIVE To investigate the microbiota composition and diversity between autogenous and anautogenous Culex pipiens pallens, so as to provide insights into unraveling the pathogenesis of autogeny in Cx. pipiens pallens. METHODS Autogenous and anautogenous adult Cx. pipiens pallens samples were collected at 25 ℃, and the hypervariable regions of the microbial 16S ribosomal RNA (16S rRNA) gene was sequenced on the Illumina NovaSeq 6000 sequencing platform. The microbiota abundance and diversity were evaluated using the alpha diversity index, and the difference in the microbiota structure was examined using the beta diversity index. The microbiota with significant differences in the abundance between autogenous and anautogenous adult Cx. pipiens pallens samples was identified using the linear discriminant analysis effect size (LEfSe). RESULTS The microbiota in autogenous and anautogenous Cx. pipiens pallens samples belonged to 18 phyla, 28 classes, 70 orders, 113 families, and 170 genera, and the dominant phyla included Proteobacteria, Bacteroidetes, and so on. At the genus level, Wolbachia was a common dominant genus, and the relative abundance was (77.6 ± 11.3)% in autogenous Cx. pipiens pallens samples and (47.5 ± 8.5)% in anautogenous mosquito samples, while Faecalibaculum (0.4% ± 0.1%), Dubosiella (0.5% ± 0.0%) and Massilia (0.5% ± 0.1%) were specific species in autogenous Cx. pipiens pallens samples. Alpha diversity analysis showed that higher Chao1 index and ACE index in autogenous Cx. pipiens pallens samples than in anautogenous samples (both P values > 0.05), and lower Shannon index (P > 0.05) and Simpson index (P < 0.05) in autogenous Cx. pipiens pallens samples than in anautogenous samples. LEfSe analysis showed a total of 48 significantly different taxa between autogenous and anautogenous Cx. pipiens pallens samples (all P values < 0.05). CONCLUSIONS There is a significant difference in the microbiota diversity between autogenous and anautogenous Cx. pipiens pallens.
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Affiliation(s)
- J Lei
- Shandong Institute of Parasitic Diseases; Shandong First Medical University & Shandong Academy of Medical Sciences, Jining, Shandong 272033, China
| | - W Lü
- Shandong Institute of Parasitic Diseases; Shandong First Medical University & Shandong Academy of Medical Sciences, Jining, Shandong 272033, China
| | - W Wang
- Shandong Institute of Parasitic Diseases; Shandong First Medical University & Shandong Academy of Medical Sciences, Jining, Shandong 272033, China
| | - H Wang
- Shandong Institute of Parasitic Diseases; Shandong First Medical University & Shandong Academy of Medical Sciences, Jining, Shandong 272033, China
| | - X Guo
- Shandong Institute of Parasitic Diseases; Shandong First Medical University & Shandong Academy of Medical Sciences, Jining, Shandong 272033, China
| | - P Cheng
- Shandong Institute of Parasitic Diseases; Shandong First Medical University & Shandong Academy of Medical Sciences, Jining, Shandong 272033, China
| | - M Gong
- Shandong Institute of Parasitic Diseases; Shandong First Medical University & Shandong Academy of Medical Sciences, Jining, Shandong 272033, China
| | - L Liu
- Shandong Institute of Parasitic Diseases; Shandong First Medical University & Shandong Academy of Medical Sciences, Jining, Shandong 272033, China
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Yang BJ, A XR, Mu XM, Cheng P, Zhou JW, Ma JD, Lyu YK. [Epidemiologic characteristics and drug resistance of isolated from blood culture escherichia coli in a hospital in Qinghai Province from 2016 to 2022]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:2102-2109. [PMID: 38186162 DOI: 10.3760/cma.j.cn112150-20230627-00492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
Objective: To explore the drug resistance of Isolated From Blood Culture Escherichia coli (E. coli) in a hospital in Qinghai over the past seven years, to evaluate the ability of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) to analyze the homologous origin of E. coli, and to establish a protein fingerprint library to match with it, adjuvant clinical experience medication so as to provide the basis for the prevention and control of hospital-acquired infections. Methods: Retrospective analysis of blood cultures sent to hospitals from January 2016 to December 2022. Drug resistance and resistance changes in E. coli.A total of 1 841 E. coli strains were isolated from Qinghai Provincial People's Hospital from January 2016 to December 2022; all strains were identified by MALDI-TOF MS, and the VITEK2.0 drug sensitivity analyzer was applied for drug sensitivity analysis of the strains, and the mass spectrometry homology analysis and self-constructed protein fingerprint library were carried out by MALDI-Biotyper software; the protein fingerprint library was built by using WHONET5.6 software was used to statistically analyze the drug sensitivity results, SPSS23.0 software was used to analyze the relationship between fingerprint typing and drug sensitivity, and the χ2 test was used for intergroup comparisons. Results: A total of 1 841 strains of E. coli were detected in 4 582 positive blood culture specimens from January 2016 to December 2022, with a detection rate of 40.17%; the resistance rate of E. coli from blood sources to piperacillin/tazobactam and ceftriaxone was on the rise, and it was slightly decreased to cefepime, amikacin, levofloxacin, and sulfamethoxazole, and there was not much change to the rest of the drugs; After MALDI-Biotyper clustering analysis, the 1841 E. coli strains from Isolated From Blood Culture were classified into two major clusters and five subtypes, of which type Ⅰa1 accounted for about 40%, type Ⅰa2 accounted for about 2.7%, type Ⅰb accounted for about 3.8, type Ⅱa accounted for about 46%, and type Ⅱb accounted for about 7.5%. The detection rate of type Ⅰa1 E. coli was higher in general surgery (50.45%) and emergency surgery (50.92%), and the detection rate of type Ⅰb E. coli was higher in emergency medicine(10.05%)than in other departments. The drug sensitivity results of different subtypes were compared with each other, the resistance rate of type Ⅰa1 E. coli to cefepime was 21.3% higher than that of the remaining four types, and the difference was statistically significant (χ2=37.74,P=0.000); the resistance rate of type Ⅱ E. coli(>60%) to sulfamethoxazole was higher than that of type Ⅰ (<60%) as a whole, and the difference was statistically significant (χ2=15.248,P=0.004); and a preliminary database of homologous protein fingerprints of E. coli has been established E. coli homologous protein fingerprint library and validated. The drug susceptibility results of 1 288 E. coli strains in the validation set were statistically analyzed and compared with those in the training set. There was no significant difference(P>0.05). Conclusion: In recent years, the resistance rate of E. coli isolated from a hospital in Qinghai province to piperacillin/Tazobactam, cefepime, amicacin and other antibiotics has changed greatly. A fingerprint database of E. coli homologous protein was established, and it was found that the drug sensitivity data of E. coli were different among different fingerprint types. According to drug sensitivity, drug use could assist clinical experience and provide evidence for prevention and control of hospital illness.
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Affiliation(s)
- B J Yang
- Medical College of Qinghai University, Xining 810001, China
| | - X R A
- Department of Medical Laboratory, Qinghai Provincial People's Hospital,Xining 810007, China
| | - X M Mu
- Department of Medical Laboratory, Qinghai Provincial People's Hospital,Xining 810007, China
| | - P Cheng
- Department of Medical Laboratory, Qinghai Provincial People's Hospital,Xining 810007, China
| | - J W Zhou
- Department of Medical Laboratory, Qinghai Provincial People's Hospital,Xining 810007, China
| | - J D Ma
- Department of Medical Laboratory, Qinghai Provincial People's Hospital,Xining 810007, China
| | - Y K Lyu
- Medical College of Qinghai University, Xining 810001, China
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Huang W, Liu X, Cheng P, Li Y, Zhou H, Liu Y, Dong Y, Wang P, Xu C, Xu X. Prognostic value of plaque volume combined with CT fractional flow reserve in patients with suspected coronary artery disease. Clin Radiol 2023; 78:e1048-e1056. [PMID: 37788967 DOI: 10.1016/j.crad.2023.08.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 08/08/2023] [Accepted: 08/30/2023] [Indexed: 10/05/2023]
Abstract
AIM To investigate the prognostic value of quantitative plaque volume on coronary computed tomography (CT) angiography (CTA) combined with CT fractional flow reserve (CT-FFR) for major adverse cardiac events (MACE) in suspected coronary artery disease (CAD) patients. MATERIALS AND METHODS Patients who underwent coronary CTA with clinically suspected CAD were enrolled retrospectively in this study. Patients' baseline, Framingham Risk Score (FRS), coronary CTA plaque assessment, and CT-FFR were analysed retrospectively. Study outcomes included rehospitalisation and MACE (ST-segment elevation myocardial infarction, unstable angina, or non-ST-segment elevation myocardial infarction, revascularisation, and cardiac death). RESULTS There were 251 patients in the study, with a follow-up period of 1-6.58 years. Mean age was 61.16 ± 10.45 years and 146 (58%) patients were male. Higher CT-adapted Leaman score and quantitative plaque volume were found in patients with FRS >0.2 regardless of categorical or continuous variables. Coronary scores, quantitative plaque parameters, and CT-FFR were associated with MACE and rehospitalisation in univariate analysis. In model 1, CT-FFR was associated with MACE in multivariate Cox analysis when adjusted for FRS and CT-adapted Leaman score. Quantitative plaque parameters including calcified plaque volume, fibro-fatty plaque volume, low-attenuation plaque volume, non-calcified plaque volume, and total plaque volume were significantly associated with MACE and improved overall prognostic performance in a model adjusted for CT-FFR. CONCLUSION Additional quantitative plaque volume and CT-FFR further improve the predictive incremental value based on risk factor scores for prognostic prediction in patients. Adding quantitative plaque volume combined with CT-FFR analysis to anatomical and clinical assessment will be further beneficial to predict patients' prognosis of MACE.
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Affiliation(s)
- W Huang
- Department of Radiology, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, 39 Yanhu Avenue, Wuchang District, Wuhan 430077, China
| | - X Liu
- Department of Radiology, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, 39 Yanhu Avenue, Wuchang District, Wuhan 430077, China
| | - P Cheng
- Department of Radiology, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, 39 Yanhu Avenue, Wuchang District, Wuhan 430077, China
| | - Y Li
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Jianghan District, Wuhan 430022, China
| | - H Zhou
- Department of Radiology, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, 39 Yanhu Avenue, Wuchang District, Wuhan 430077, China
| | - Y Liu
- Department of Radiology, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, 39 Yanhu Avenue, Wuchang District, Wuhan 430077, China
| | - Y Dong
- Department of Radiology, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, 39 Yanhu Avenue, Wuchang District, Wuhan 430077, China
| | - P Wang
- Department of Clinical Laboratory, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, 39 Yanhu Avenue, Wuchang District, Wuhan 430077, China
| | - C Xu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Institute, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, 1037 Luoyu Road, Hongshan District, Wuhan 430070, China
| | - X Xu
- Department of Radiology, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, 39 Yanhu Avenue, Wuchang District, Wuhan 430077, China.
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Qian AM, Cheng R, Gu XY, Yin R, Bai RM, Du J, Sun MY, Cheng P, K Lee KLEE, Du LZ, Cao Y, Zhou WH, Zhao YY, Jiang SY. [Treatment of patent ductus arteriosus in very preterm infants in China]. Zhonghua Er Ke Za Zhi 2023; 61:896-901. [PMID: 37803856 DOI: 10.3760/cma.j.cn112140-20230706-00440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/08/2023]
Abstract
Objective: To describe the current status and trends in the treatment of patent ductus arteriosus (PDA) among very preterm infants (VPI) admitted to the neonatal intensive care units (NICU) of the Chinese Neonatal Network (CHNN) from 2019 to 2021, and to compare the differences in PDA treatment among these units. Methods: This was a cross-sectional study based on the CHNN VPI cohort, all of 22 525 VPI (gestational age<32 weeks) admitted to 79 tertiary NICU within 3 days of age from 2019 to 2021 were included. The overall PDA treatment rates were calculated, as well as the rates of infants with different gestational ages (≤26, 27-28, 29-31 weeks), and pharmacological and surgical treatments were described. PDA was defined as those diagnosed by echocardiography during hospitalization. The PDA treatment rate was defined as the number of VPI who had received medication treatment and (or) surgical ligation of PDA divided by the number of all VPI. Logistic regression was used to investigate the changes in PDA treatment rates over the 3 years and the differences between gestational age groups. A multivariate Logistic regression model was constructed to compute the standardized ratio (SR) of PDA treatment across different units, to compare the rates after adjusting for population characteristics. Results: A total of 22 525 VPI were included in the study, with a gestational age of 30.0 (28.6, 31.0) weeks and birth weight of 1 310 (1 100, 1 540) g; 56.0% (12 615) of them were male. PDA was diagnosed by echocardiography in 49.7% (11 186/22 525) of all VPI, and the overall PDA treatment rate was 16.8% (3 795/22 525). Of 3 762 VPI who received medication treatment, the main first-line medication used was ibuprofen (93.4% (3 515/3 762)) and the postnatal day of first medication treatment was 6 (4, 10) days of age; 59.3% (2 231/3 762) of the VPI had been weaned from invasive respiratory support during the first medication treatment, and 82.2% (3 092/3 762) of the infants received only one course of medication treatment. A total of 143 VPI underwent surgery, which was conducted on 32 (22, 46) days of age. Over the 3 years from 2019 to 2021, there was no significant change in the PDA treatment rate in these VPI (P=0.650). The PDA treatment rate decreased with increasing gestational age (P<0.001). The PDA treatment rates for VPI with gestational age ≤26, 27-28, and 29-31 weeks were 39.6% (688/1 737), 25.9% (1 319/5 098), and 11.4% (1 788/15 690), respectively. There were 61 units having a total number of VPI≥100 cases, and their rates of PDA treatment were 0 (0/116)-47.4% (376/793). After adjusting for population characteristics, the range of standardized ratios for PDA treatment in the 61 units was 0 (95%CI 0-0.3) to 3.4 (95%CI 3.1-3.8). Conclusions: From 2019 to 2021, compared to the peers in developed countries, VPI in CHNN NICU had a different PDA treatment rate; specifically, the VPI with small birth gestational age had a lower treatment rate, while the VPI with large birth gestational age had a higher rate. There are significant differences in PDA treatment rates among different units.
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Affiliation(s)
- A M Qian
- Department of Neonatology, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - R Cheng
- Department of Neonatology, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - X Y Gu
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - R Yin
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - R M Bai
- Department of Neonatology, Northwest Women's and Children's Hospital, Xi'an 710061, China
| | - J Du
- Department of Neonatology, Beijing Children's Hospital, Capital Medical University, National Center of Children's Health, Beijing 100045, China
| | - M Y Sun
- Department of Neonatology, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - P Cheng
- Department of Neonatology, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450018, China
| | - K L E E K Lee
- the Maternal Infant Care Research Center (MiCARE), Mount Sinai Hospital, Toronto M5G 1X5, Canada
| | - L Z Du
- Department of Neonatology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310051, China
| | - Y Cao
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - W H Zhou
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Y Y Zhao
- Department of Neonatology, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - S Y Jiang
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
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Cheng P, A XR, Mu XM, Yang BJ, Chan SS. [Correlation of extracellular enzymes activity of Candida glabrata clinical isolates with in vivo pathogenicity in Galleria mellonella larvae]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:229-235. [PMID: 36797581 DOI: 10.3760/cma.j.cn112150-20220712-00709] [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: 02/18/2023]
Abstract
Objective: To explore the relationship between extracellular enzymes activity and virulence of Candida glabrata clinical isolates based on the infection model of Galleria mellonella larvae. Methods: Using experimental research methods, 71 strains of non-repetitive Candida glabrata were collected from Qinghai Provincial People's Hospital from June 2021 to January 2022. Bovine serum protein agar medium, egg yolk agar medium, sheep blood agar medium, Tween-80 agar medium and triglyceride agar medium were used to detect the aspartyl protease activity, phospholipase activity, hemolysis activity, esterase activity and lipase activity of Candida glabrata. Median lethal concentration (LC50) was calculated by using 1.25×108 CFU/ml,2.50×108 CFU/ml,3.75×108 CFU/ml,5.00×108 CFU/ml suspension of Candida glabrata ATCC2001 to infect Galleria mellonella larvae. Histopathological and etiological analysis was performed to determine whether the infection model was successfully established. The clinical isolates of Candida glabrata were configured to infect Galleria mellonella larvae with LC50 concentration to detect the pathogenicity of Galleria mellonella larvae.Spearman test or Pearson test were used to analyze the correlation between the extracellular enzyme activity of Candida glabrata clinical isolates and the pathogenicity of Galleria mellonella larvae. Results: 71 strains of Candida glabrata isolated clinically were detected to have low hemolytic activity after 2 days of culture. Aspartyl protease was detected after 4 days of culture, among which 7 strains (9.86%), 19 strains (26.76%) and 45 strains (63.38%) showed low, medium and high aspartyl protease activity. After 7 days of culture, 71 strains did not detect phospholipase, esterase and lipase activities. Candida glabrata on Galleria mellonella larvae of LC50=2.5×108 CFU/ml Fungal spore were found in the intestinal tissue pathological section of Galleria mellonella larvae in the experimental group, and Candida glabrata was identified by the microbial Mass Spectrometry after culture, while no fungi were found in the pathological section and culture of the control group. Spearman test shows that, there was a linear positive correlation between aspartyl protease activity and the survival rate of Galleria mellonella larvae (r = 0.73, P<0.01), the difference was statistically significant.Pearson test shows that, there was no significant linear relationship between hemolytic activity and survival rate of Galleria mellonella larvae (r = 0.16, P = 0.34), the difference was not statistically significant. Conclusion: The clinical isolates of Candida glabrata in this study had aspartyl protease activity and low hemolytic activity, but no phospholipase, esterase and lipase activity. The activity of aspartyl aspartyl protease of Candida glabrata was positively correlated with the pathogenicity of Galleria mellonella larvae.
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Affiliation(s)
- P Cheng
- Medical College of Qinghai University, Xining 810001, China Department of Medical Laboratory, Qinghai Provincial People's Hospital, Xining 810007, China
| | - X R A
- Department of Medical Laboratory, Qinghai Provincial People's Hospital, Xining 810007, China
| | - X M Mu
- Department of Medical Laboratory, Qinghai Provincial People's Hospital, Xining 810007, China
| | - B J Yang
- Medical College of Qinghai University, Xining 810001, China
| | - S S Chan
- Department of Pathology, Qinghai Provincial People's Hospital, Xining 810007, China
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Cheng P, Casement M, Kalmbach D, Castelan AC, Drake C. Digital Cognitive Behavioral Therapy for Insomnia Promotes Resilience During the Coronavirus Disease 19 (COVID-19) Pandemic. Sleep Med 2022. [PMCID: PMC9300228 DOI: 10.1016/j.sleep.2022.05.315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Luo H, Gao H, Zhang T, Cheng P. [A case of metastatic von Hippel Lindau-pancreatic neuroendocrine tumor]. Zhonghua Zhong Liu Za Zhi 2022; 44:1233-1234. [PMID: 36380674 DOI: 10.3760/cma.j.cn112152-20210611-00445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- H Luo
- Department of Oncology, the General Hospital of Western Theater Command, Chengdu 610083, China
| | - H Gao
- Department of Oncology, the General Hospital of Western Theater Command, Chengdu 610083, China
| | - T Zhang
- Department of Oncology, the General Hospital of Western Theater Command, Chengdu 610083, China
| | - P Cheng
- Department of Oncology, the General Hospital of Western Theater Command, Chengdu 610083, China
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Dimitriou F, Hassel J, Orloff M, Hughes I, Kapiteijn E, Mehmi I, Montazeri K, Johnson D, Grover P, Gerard C, Simeone E, Gaudy Marqueste C, Cheng P, Long G, Carvajal R, Dummer R. 832P Treatment sequence with tebentafusp (tebe) and anti-PD1/ipilimumab (PD1+IPI) in HLA-A2*02:01 patients (pts) with metastatic uveal melanoma (mUM). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.958] [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] Open
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Ware J, Boughton CK, Allen JM, Wilinska ME, Tauschmann M, Denvir L, Thankamony A, Campbell FM, Wadwa RP, Buckingham BA, Davis N, DiMeglio LA, Mauras N, Besser REJ, Ghatak A, Weinzimer SA, Hood KK, Fox DS, Kanapka L, Kollman C, Sibayan J, Beck RW, Hovorka R, Hovorka R, Acerini CL, Thankamony A, Allen JM, Boughton CK, Dovc K, Dunger DB, Ware J, Musolino G, Tauschmann M, Wilinska ME, Hayes JF, Hartnell S, Slegtenhorst S, Ruan Y, Haydock M, Mangat J, Denvir L, Kanthagnany SK, Law J, Randell T, Sachdev P, Saxton M, Coupe A, Stafford S, Ball A, Keeton R, Cresswell R, Crate L, Cripps H, Fazackerley H, Looby L, Navarra H, Saddington C, Smith V, Verhoeven V, Bratt S, Khan N, Moyes L, Sandhu K, West C, Wadwa RP, Alonso G, Forlenza G, Slover R, Towers L, Berget C, Coakley A, Escobar E, Jost E, Lange S, Messer L, Thivener K, Campbell FM, Yong J, Metcalfe E, Allen M, Ambler S, Waheed S, Exall J, Tulip J, Buckingham BA, Ekhlaspour L, Maahs D, Norlander L, Jacobson T, Twon M, Weir C, Leverenz B, Keller J, Davis N, Kumaran A, Trevelyan N, Dewar H, Price G, Crouch G, Ensom R, Haskell L, Lueddeke LM, Mauras N, Benson M, Bird K, Englert K, Permuy J, Ponthieux K, Marrero-Hernandez J, DiMeglio LA, Ismail H, Jolivette H, Sanchez J, Woerner S, Kirchner M, Mullen M, Tebbe M, Besser REJ, Basu S, London R, Makaya T, Ryan F, Megson C, Bowen-Morris J, Haest J, Law R, Stamford I, Ghatak A, Deakin M, Phelan K, Thornborough K, Shakeshaft J, Weinzimer SA, Cengiz E, Sherr JL, Van Name M, Weyman K, Carria L, Steffen A, Zgorski M, Sibayan J, Beck RW, Borgman S, Davis J, Rusnak J, Hellman A, Cheng P, Kanapka L, Kollman C, McCarthy C, Chalasani S, Hood KK, Hanes S, Viana J, Lanning M, Fox DS, Arreaza-Rubin G, Eggerman T, Green N, Janicek R, Gabrielson D, Belle SH, Castle J, Green J, Legault L, Willi SM, Wysham C. Cambridge hybrid closed-loop algorithm in children and adolescents with type 1 diabetes: a multicentre 6-month randomised controlled trial. Lancet Digit Health 2022; 4:e245-e255. [PMID: 35272971 DOI: 10.1016/s2589-7500(22)00020-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 12/10/2021] [Accepted: 01/25/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND Closed-loop insulin delivery systems have the potential to address suboptimal glucose control in children and adolescents with type 1 diabetes. We compared safety and efficacy of the Cambridge hybrid closed-loop algorithm with usual care over 6 months in this population. METHODS In a multicentre, multinational, parallel randomised controlled trial, participants aged 6-18 years using insulin pump therapy were recruited at seven UK and five US paediatric diabetes centres. Key inclusion criteria were diagnosis of type 1 diabetes for at least 12 months, insulin pump therapy for at least 3 months, and screening HbA1c levels between 53 and 86 mmol/mol (7·0-10·0%). Using block randomisation and central randomisation software, we randomly assigned participants to either closed-loop insulin delivery (closed-loop group) or to usual care with insulin pump therapy (control group) for 6 months. Randomisation was stratified at each centre by local baseline HbA1c. The Cambridge closed-loop algorithm running on a smartphone was used with either (1) a modified Medtronic 640G pump, Medtronic Guardian 3 sensor, and Medtronic prototype phone enclosure (FlorenceM configuration), or (2) a Sooil Dana RS pump and Dexcom G6 sensor (CamAPS FX configuration). The primary endpoint was change in HbA1c at 6 months combining data from both configurations. The primary analysis was done in all randomised patients (intention to treat). Trial registration ClinicalTrials.gov, NCT02925299. FINDINGS Of 147 people initially screened, 133 participants (mean age 13·0 years [SD 2·8]; 57% female, 43% male) were randomly assigned to either the closed-loop group (n=65) or the control group (n=68). Mean baseline HbA1c was 8·2% (SD 0·7) in the closed-loop group and 8·3% (0·7) in the control group. At 6 months, HbA1c was lower in the closed-loop group than in the control group (between-group difference -3·5 mmol/mol (95% CI -6·5 to -0·5 [-0·32 percentage points, -0·59 to -0·04]; p=0·023). Closed-loop usage was low with FlorenceM due to failing phone enclosures (median 40% [IQR 26-53]), but consistently high with CamAPS FX (93% [88-96]), impacting efficacy. A total of 155 adverse events occurred after randomisation (67 in the closed-loop group, 88 in the control group), including seven severe hypoglycaemia events (four in the closed-loop group, three in the control group), two diabetic ketoacidosis events (both in the closed-loop group), and two non-treatment-related serious adverse events. There were 23 reportable hyperglycaemia events (11 in the closed-loop group, 12 in the control group), which did not meet criteria for diabetic ketoacidosis. INTERPRETATION The Cambridge hybrid closed-loop algorithm had an acceptable safety profile, and improved glycaemic control in children and adolescents with type 1 diabetes. To ensure optimal efficacy of the closed-loop system, usage needs to be consistently high, as demonstrated with CamAPS FX. FUNDING National Institute of Diabetes and Digestive and Kidney Diseases.
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Huang SB, Hu ZC, Zhang Y, Tang B, Wang P, Xu HL, Wang ZY, Dong YX, Cheng P, Rong YC, Wu J, Zhu JY. [Effects and mechanisms of allogeneic epidermal stem cells on the survival of allogeneic full-thickness skin grafts in nude mice with full-thickness skin defect wounds]. Zhonghua Shao Shang Za Zhi 2021; 37:1061-1069. [PMID: 34794258 DOI: 10.3760/cma.j.cn501120-20200704-00339] [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 investigate the effects and mechanisms of allogeneic epidermal stem cells (ESCs) on the survival of allogeneic full-thickness skin grafts in nude mice with full-thickness skin defect wounds. Methods: Experimental research methods were applied. Primary ESCs that appeared paving stone-like after being cultured for 7 d were obtained by enzymatic digestion method from one 4-week-old male BALB/c-NU nude mouse (the same strain, age, and sex below). The cells of third passage were identified by flow cytometry to positively express ESC marker CD44 and negatively express CD45, meanwhile, the positive expression of ESC markers of p63 and integrin 6α, and negative expression of CD71 were identified by immunofluorescence method. The ESCs of third passage in the logarithmic growth phase were used for the following experiments. Twenty-six nude mice were equally divided into phosphate buffered saline (PBS) group and ESCs group according to the random number table. A full-thickness skin defect wound was made on the back of each nude mouse, and then the wounds of the two groups were sprayed with equal volumes of PBS and ESCs, respectively. The wounds were transplanted with full-thickness skin grafts cut from the backs of 4 other nude mice. Each ten nude mice from the two groups were selected, the wound healing and skin survival on post surgery day (PSD) 0 (immediately), 3, 7, 14, and 21 were observed, and the survival ratio and shrinkage rate of skin grafts on PSD 3, 7, 14, and 21 were calculated (the number of sample was the number of surviving skin grafts at each time point); the blood perfusion in the skin grafts on PSD 3, 7, and 14 was detected by the laser speckle blood flow imager, and the blood flow ratio of nude mice skin grafts in ESCs group to PBS group at each time point was calculated (the number of sample was the pair number of surviving skin grafts in group pairing at each time point). The skin graft tissue of each 3 nude mice remained in the two groups were collected on PSD 7, and the mRNA expressions and protein expressions of tumor necrosis factor α (TNF-α), interleukin 8 (IL-8), IL-10, type Ⅰ collagen, type Ⅲ collagen, and matrix metalloproteinase 9 (MMP-9) in the tissue were detected by real-time fluorescent quantitative reverse transcription polymerase chain reaction and Western blotting, respectively. Data were statistically analyzed with Log-rank test, analysis of variance for repeated measurement, one-way analysis of variance, independent sample t test, and Bonferroni correction. Results: Taking the condition on PSD 0 as a reference, the wounds of nude mice in the two groups healed gradually on PSD 3, 7, 14, and 21, and the shrinkage of skin grafts was gradually obvious. Among them, the shrinkage healing of wound of nude mice in PBS group was more significant than that in ESCs group. On PSD 3, the skin graft of 1 nude mouse failed in ESCs group, while the skin graft of 3 nude mice failed in PBS group. On PSD 7, the skin graft of another nude mouse failed in PBS group. The survival ratio of skin grafts of nude mice in the two groups was similar on PSD 3, 7, 14, and 21 (P>0.05). On PSD 3, 7, 14, and 21, the shrinkage rates of skin grafts of nude mice in ESCs group were (9.2±0.4)%, (19.7±1.2)%, (53.6±3.5)%, and (62.2±5.1)%, respectively, which was significantly lower than (11.0±0.9)%, (47.8±2.8)%, (86.1±7.1)%, and (89.7±9.0)% in PBS group (t=5.719, 26.650, 11.940, 7.617, P<0.01). On PSD 3, 7, and 14, blood perfusion signals were observed in the skin grafts of nude mice in the two groups. The average blood perfusion ratios of the skin grafts of nude mice in ESCs group to PBS group were greater than 1, and there was no statistically significant difference in the overall comparison of 3 time points (P>0.05). On PSD 7, compared with those of PBS group, the mRNA and protein expressions of TNF-α, IL-8, type Ⅰ collagen, and type Ⅲ collagen in the skin graft tissue of nude mice in ESCs group were significantly reduced, while the mRNA and protein expressions of IL-10 and MMP-9 in the skin graft tissue of nude mice in ESCs group were significantly increased (in mRNA comparison, t=2.823, 2.934, 2.845, 2.860, 3.877, 2.916, P<0.05). Conclusions: Allogeneic ESCs can reduce the shrinkage of allogeneic full-thickness skin grafts transplanted on full-thickness skin defect wounds in nude mice, promote the formation of new blood vessels between the skin graft and the wound, reduce inflammation and collagen protein expression, and promote the expression of MMP-9, thus improving the survival quality of skin grafts.
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Affiliation(s)
- S B Huang
- Department of Burns, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Z C Hu
- Department of Burns, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Y Zhang
- Department of Burns and Plastic Surgery, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - B Tang
- Department of Burns, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - P Wang
- Department of Burns, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - H L Xu
- Department of Burns, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Z Y Wang
- Department of Burns, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Y X Dong
- Department of Burns, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - P Cheng
- Department of Burns, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Y C Rong
- Department of Burns, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - J Wu
- Department of Burns and Plastic Surgery, the First Affiliated Hospital of Shenzhen University, Shenzhen 518037, China
| | - J Y Zhu
- Department of Burns, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
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Li W, Cheng P, Zhang JB, Zhao LM, Ma YB, Ding K. Synergism of microorganisms and enzymes in solid-state fermentation of animal feed. A review. J Anim Feed Sci 2021. [DOI: 10.22358/jafs/133151/2021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Cheng P, Wang Y, Sarakha M, Mailhot G. Enhancement of the photocatalytic activity of decatungstate, W10O324−, for the oxidation of sulfasalazine/sulfapyridine in the presence of hydrogen peroxide. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2020.112890] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Jia WX, Li WR, Wu YD, Zhang YY, Cheng P, Xiao XM, Li CR. A de novo missense mutation of the CYLD gene with multiple familial trichoepithelioma. Clin Exp Dermatol 2020; 46:792-794. [PMID: 33215749 DOI: 10.1111/ced.14515] [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] [Received: 07/08/2020] [Revised: 10/20/2020] [Accepted: 11/17/2020] [Indexed: 11/28/2022]
Affiliation(s)
- W-X Jia
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - W-R Li
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Y-D Wu
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Y-Y Zhang
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - P Cheng
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - X-M Xiao
- Department of Dermatology, The Union Hospital, Fujian Medical University, Fuzhou, China
| | - C-R Li
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
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14
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Lee CK, Leung JNS, Cheng P, Lung DC, To KKW, Tsang DNC. Absence of SARS-CoV-2 viraemia in a blood donor with COVID-19 post-donation. Transfus Med 2020; 31:223-224. [PMID: 33015920 PMCID: PMC7677860 DOI: 10.1111/tme.12724] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 09/22/2020] [Indexed: 12/01/2022]
Affiliation(s)
- C K Lee
- Hong Kong Red Cross Blood Transfusion Service, Hong Kong, SAR, China
| | - J N S Leung
- Hong Kong Red Cross Blood Transfusion Service, Hong Kong, SAR, China
| | - P Cheng
- Public Health Laboratory Centre, Centre for Health Protection, Department of Health, Hong Kong, SAR, China
| | - D C Lung
- Department of Pathology, Queen Elizabeth Hospital, Hong Kong, SAR, China
| | - K K W To
- State Key Laboratory for Emerging Infectious Diseases, Carol Yu Centre for Infection, Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong
| | - D N C Tsang
- Public Health Laboratory Centre, Centre for Health Protection, Department of Health, Hong Kong, SAR, China
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Goggi JL, Tan YX, Hartimath SV, Jieu B, Hwang YY, Jiang L, Boominathan R, Cheng P, Yuen TY, Chin HX, Tang JR, Larbi A, Chacko AM, Renia L, Johannes C, Robins EG. Granzyme B PET Imaging of Immune Checkpoint Inhibitor Combinations in Colon Cancer Phenotypes. Mol Imaging Biol 2020; 22:1392-1402. [PMID: 32705455 PMCID: PMC7497445 DOI: 10.1007/s11307-020-01519-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Immune checkpoint inhibitor (ICI) monotherapy and combination regimens are being actively pursued as strategies to improve durable response rates in cancer patients. However, the biology surrounding combination therapies is not well understood and may increase the likelihood of immune-mediated adverse events. Accurate stratification of ICI response by non-invasive PET imaging may help ensure safe therapy management across a wide number of cancer phenotypes. PROCEDURES We have assessed the ability of a fluorine-labelled peptide, [18F]AlF-mNOTA-GZP, targeting granzyme B, to stratify ICI response in two syngeneic models of colon cancer, CT26 and MC38. In vivo tumour uptake of [18F]AlF-mNOTA-GZP following ICI monotherapy, or in combination with PD-1 was characterised and correlated with changes in tumour-associated immune cell populations. RESULTS [18F]AlF-mNOTA-GZP showed good predictive ability and correlated well with changes in tumour-associated T cells, especially CD8+ T cells; however, overall uptake and response to monotherapy or combination therapies was very different in the CT26 and MC38 tumours, likely due to the immunostimulatory environment imbued by the MSI-high phenotype in MC38 tumours. CONCLUSIONS [18F]AlF-mNOTA-GZP uptake correlates well with changes in CD8+ T cell populations and is able to stratify tumour response to a range of ICIs administered as monotherapies or in combination. However, tracer uptake can be significantly affected by preexisting phenotypic abnormalities potentially confusing data interpretation.
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Affiliation(s)
- J L Goggi
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A* STAR), 11 Biopolis Way, #01-02, Helios, 138667, Singapore
| | - Y X Tan
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A* STAR), 11 Biopolis Way, #01-02, Helios, 138667, Singapore
| | - S V Hartimath
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A* STAR), 11 Biopolis Way, #01-02, Helios, 138667, Singapore
| | - B Jieu
- Institute of Chemical and Engineering Sciences (ICES), A*STAR, 8 Biomedical Grove, #07, Neuros, 138665, Singapore
| | - Y Y Hwang
- Singapore Immunology Network, A*STAR, 8A Biomedical Grove, Immunos, 138648, Singapore
| | - L Jiang
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A* STAR), 11 Biopolis Way, #01-02, Helios, 138667, Singapore
| | - R Boominathan
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A* STAR), 11 Biopolis Way, #01-02, Helios, 138667, Singapore
| | - P Cheng
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A* STAR), 11 Biopolis Way, #01-02, Helios, 138667, Singapore
| | - T Y Yuen
- Institute of Chemical and Engineering Sciences (ICES), A*STAR, 8 Biomedical Grove, #07, Neuros, 138665, Singapore
| | - H X Chin
- Singapore Immunology Network, A*STAR, 8A Biomedical Grove, Immunos, 138648, Singapore
| | - J R Tang
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A* STAR), 11 Biopolis Way, #01-02, Helios, 138667, Singapore
| | - A Larbi
- Singapore Immunology Network, A*STAR, 8A Biomedical Grove, Immunos, 138648, Singapore
| | - A M Chacko
- Laboratory for Translational and Molecular Imaging (LTMI), Cancer and Stem Cell Biology Programme, Duke-NUS Medical School, 8 College Road, Singapore, 169857, Singapore
| | - L Renia
- Singapore Immunology Network, A*STAR, 8A Biomedical Grove, Immunos, 138648, Singapore
| | - C Johannes
- p53 Laboratory, A*STAR, 8A Biomedical Grove, #06-04/05, Neuros/Immunos, 138665, Singapore
| | - Edward G Robins
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A* STAR), 11 Biopolis Way, #01-02, Helios, 138667, Singapore.
- Clinical Imaging Research Centre (CIRC), Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117599, Singapore.
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Mann E, Sagong C, Cuamatzi Castelan A, Singh M, Roth T, Drake CL, Cheng P. 0007 Daytime Sleep in Night Shift Workers: Quantifying the Role of Circadian Misalignment. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Circadian misalignment is commonly cited as a culprit of daytime sleep disturbances in night shift workers; however, the specific impact and magnitude that circadian misalignment has on daytime sleep has not been well-characterized in larger samples of night shift workers.
Methods
Participants included fixed-night shift workers (n=52, ages 18–50) who completed an 8-hour daytime polysomnography (PSG) in the lab following a night shift. Measures of sleep disturbances included: difficulty falling asleep (sleep onset latency [SOL], latency to persistent sleep [LPS]), difficulty staying asleep (sleep efficiency [SE], wake after sleep onset [WASO]), and sleep duration (total sleep time [TST]). Melatonin samples were collected hourly for 24 hours under dim light (<10 lux) and used to determine dim light melatonin offset (DLMOff). Circadian misalignment (CM) was calculated as the time difference between bedtime and DLMOff (higher values represented sleeping after DLMOff), and correlated with PSG sleep variables.
Results
CM was significantly associated with difficulty staying asleep (WASO: r=0.48, p<0.001; SE: r=-0.45, p<0.001), and sleep duration (TST: r=-0.38, p<0.01). Specifically, every 3 hours of CM on average added 19.2 minutes of WASO and reduced TST by 15 minutes. In contrast, CM was not significantly correlated with sleep onset difficulties (SOL: r=-0.27; LPS: r=-0.02).
Conclusion
These data suggest that circadian misalignment in shift workers may be a better predictor of difficulties staying asleep and sleep duration during the day relative to difficulties falling asleep. Because longer work hours (10–12 hours) are common in night shift worker, it may be that sleep initiation difficulties associated with circadian misalignment is masked by elevated fatigue or an increased homeostatic drive from prolonged wakefulness. These results may help guide decisions about the magnitude of phase shifts required (e.g., with light therapy) for the desired improvement in daytime sleep.
Support
Support for this study was provided to PC by the NHLBI (K23HL138166)
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Affiliation(s)
- E Mann
- Henry Ford Health System, Detroit, MI
| | - C Sagong
- Henry Ford Health System, Detroit, MI
| | | | - M Singh
- Henry Ford Health System, Detroit, MI
| | - T Roth
- Henry Ford Health System, Detroit, MI
| | - C L Drake
- Henry Ford Health System, Detroit, MI
| | - P Cheng
- Henry Ford Health System, Detroit, MI
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Schaap E, Sagong C, Cuamatzi Castelan AS, Sayed J, Roth T, Drake CL, Cheng P. 0006 The Role of Stress in Sleep in Night Shift Workers: Going Beyond Circadian Misalignment. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.005] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Despite a growing need for nighttime work, few studies have characterized the causes of sleep disturbance in night shift workers beyond circadian misalignment. Recent research suggest that high sleep reactivity to stress (a predisposition for sleep disturbance due to stress) may also lead to sleep difficulties in shift workers. This study investigated if sleep reactivity is an independent predictor of daytime sleep disturbances after controlling for circadian phase.
Methods
Night shift workers (N= 48) completed an 8 hour polysomnography (PSG) during the daytime following a night shift (9am - 4pm). Circadian phase was measured using melatonin assays of saliva samples collected over 24 hours under dim light (<10 lux; Dim Light Melatonin Onset [DLMO]). Sleep reactivity was measured using the Ford Insomnia Response to Stress Test (FIRST). Linear regressions were conducted with PSG sleep parameters as outcome variables: difficulty falling asleep (Sleep Onset Latency [SOL] and Latency to Persistent Sleep [LPS]), difficulty staying asleep (Wake After Sleep Onset [WASO]), and sleep duration (Total Sleep Time [TST]). FIRST was tested as a predictor controlling for DLMO.
Results
After controlling for circadian phase, higher FIRST scores was associated with more difficulty staying asleep (WASO: t[45]=4.059, p<0.001) and shorter sleep duration (TST: t[45] = -4.403, p<0.0001), but not predictive of difficulty falling asleep (SOL: p>0.05). However, higher FIRST scores did predict a longer latency to persistent sleep (LPS: t[45]=2.272, p<0.05).
Conclusion
These results suggest that sleep reactivity to stress and circadian misalignment are independent processes that are both associated with disrupted daytime sleep in night shift workers. Given that night shift work can also cause psychosocial stress, treatments focused on circadian misalignment alone may not be sufficient. Our study highlights the need to consider sleep reactivity in the clinical management of shift work disorder.
Support
Support for this study was provided to PC by NHLBI (K23HL138166).
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Affiliation(s)
- E Schaap
- Henry Ford Health System, Detroit, MI
| | - C Sagong
- Henry Ford Health System, Detroit, MI
| | | | - J Sayed
- Henry Ford Health System, Detroit, MI
| | - T Roth
- Henry Ford Health System, Detroit, MI
| | - C L Drake
- Henry Ford Health System, Detroit, MI
| | - P Cheng
- Henry Ford Health System, Detroit, MI
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Murugan N, Sagong C, Cuamatzi Castelan AS, Moss K, Roth T, Drake CL, Cheng P. 0203 To and From the Night Shift: Risky On-the-Road Driving in Night Shift Workers. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.201] [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: 11/14/2022] Open
Abstract
Abstract
Introduction
Drowsy driving is a common occupational hazard for night shift workers (NSWs). While sleep loss is commonly identified as the primary culprit of drowsy driving, another critical factor to consider is circadian phase. However, the role of circadian phase in driving safety has not been well characterized in NSWs. This study examined if dim light melatonin offset (DLMOff, i.e. the cessation of melatonin secretion) is also a relevant phase marker of susceptibility to four different subtypes of risky on-the-road driving behaviors.
Methods
On-the-road driving was monitored over 8 weeks via a mobile application that tracked risky driving behaviors using accelerometer and GPS data from cell phones (N=15; 3052 total driving events recorded). Risky driving behaviors included: 1) frequency of hard-braking events, 2) frequency of aggressive-acceleration events, 3) duration of excessive-speeding, and 4) duration of phone-usage. At week 2, participants spent 24 hours in-lab where hourly saliva samples were collected and assayed for melatonin, and DLMOff was calculated. Phase angle of driving events relative to DLMOff was used as the predictor in nested mixed-effects regressions, with risky driving behaviors as the outcome variables.
Results
The most common occurrences of risky driving were phone-usage and hard-braking. On average, NSWs had 46.7% and 42.0% of driving events with at least one occurrence of phone-usage and hard-braking, respectively. Rates of aggressive-acceleration and speeding were 24.4% and 20.4%. Positive phase angles (i.e. driving after DLMOff) were associated with reduced rates of hard-braking and aggressive-acceleration, but not of phone-usage and excessive-speeding. Specifically, rates of hard-braking and aggressive-acceleration decreased by 4.5% (p<.01) and 3.4% (p=.05) every two hours following DLMOff, respectively.
Conclusion
The study suggests DLMOff appears to be an important variable for predicting accident risk in NSWs. If replicated, circadian phase should be considered in recommendations to increase occupational health and safety of NSWs.
Support
Support for this study was provided to PC by NHLBI (K23HL138166).
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Affiliation(s)
- N Murugan
- Henry Ford Health System, Detroit, MI
| | - C Sagong
- Henry Ford Health System, Detroit, MI
| | | | - K Moss
- Henry Ford Health System, Detroit, MI
| | - T Roth
- Henry Ford Health System, Detroit, MI
| | - C L Drake
- Henry Ford Health System, Detroit, MI
| | - P Cheng
- Henry Ford Health System, Detroit, MI
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Drake CL, Cheng P, Kalmbach D, Roth T, Sagong C, Arnett L. 0465 Association Between Physical or Sexual Abuse and Sleep Reactivity in Patients with Insomnia. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Physical and sexual abuse are common and have demonstrated associations with insomnia. A common factor predisposing individuals to the development of insomnia is sleep reactivity, yet no studies have determined the relationship between sleep reactivity and physical and/or sexual abuse.
Methods
Patients with DSM-5 insomnia disorder (N = 658; 519 F; mean age = 45.03) participated in an online randomized controlled trial of behavioral treatment of insomnia. Participants completed the Insomnia Severity Index (ISI), Ford Insomnia Response to Stress Test (FIRST), and demographic information at baseline. Abuse history was assessed with a single 4-choice item asking participants if they had a history of physical or sexual abuse. One-way analysis of variance was used to determine the level of sleep reactivity in each of the 4 abuse groups (none, physical, sexual, both) controlling for insomnia (ISI). Post-hoc analyses also compared differences in self-reported difficulties falling and staying asleep.
Results
Compared to those with no abuse history (n = 465), patients who reported both physical and sexual abuse (n = 50) had significantly elevated FIRST scores (p < .001). Results remained significant after controlling for severity of insomnia, age, and gender. Post-hoc analyses showed group differences in sleep onset latency but not wake after sleep onset.
Conclusion
Combined physical and sexual abuse are associated with higher levels of sleep reactivity to stress, and that the effects may be most prominent for difficulties falling asleep and not sleep maintenance. Prospective studies are needed to determine the potential effects of abuse on sleep reactivity, and whether sensitization of the sleep system to stress constitutes an etiological pathway in the development of insomnia disorder in survivors of abuse. Future work should also investigate potential overlapping biological markers of abuse and sleep reactivity.
Support
This study was funded by the Robert Wood Johnson Foundation (PI: Drake).
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Affiliation(s)
- C L Drake
- Henry Ford Health System, Detroit, MI
| | - P Cheng
- Henry Ford Health System, Detroit, MI
| | | | - T Roth
- Henry Ford Health System, Detroit, MI
| | - C Sagong
- Henry Ford Health System, Detoirt, MI
| | - L Arnett
- Henry Ford Health System, Detoirt, MI
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Van Name MA, Cheng P, Gal RL, Kollman C, Lynch J, Nelson B, Tamborlane WV. Children and adolescents with type 1 and type 2 diabetes mellitus in the Pediatric Diabetes Consortium Registries: comparing clinical characteristics and glycaemic control. Diabet Med 2020; 37:863-867. [PMID: 31943374 DOI: 10.1111/dme.14233] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/09/2020] [Indexed: 01/10/2023]
Abstract
AIM To compare the characteristics of children and adolescents with type 1 vs. type 2 diabetes in the Pediatric Diabetes Consortium (PDC) registries. METHODS Participants were 10 to < 21 years of age at diagnosis; there were 484 with type 1 diabetes and 1236 with type 2 diabetes. RESULTS Children and adolescents with type 2 diabetes were more likely to be female, overweight/obese, and from low-income, minority ethnic families. Children and adolescents with type 1 diabetes were more likely to present with diabetic ketoacidosis and have higher mean HbA1c levels at diagnosis. More than 70% in both cohorts achieved target HbA1c levels < 58 mmol/mol (< 7.5%) within 6 months, but fewer participants with type 1 than type 2 diabetes were able to maintain target HbA1c levels after 6 months consistently throughout 3 years post diagnosis. Of the 401 participants with type 2 diabetes with ≥ 24 months diabetes duration on enrolment in the registry, 47% required no insulin treatment. Median C-peptide levels were 1.43 mmol/l in the subset of participants with type 2 diabetes in whom it was measured, but only 0.06 mmol/l in the subset with type 1 diabetes. CONCLUSIONS Although families of children and adolescents with type 2 diabetes face greater socio-economic obstacles and risk factors for poor diabetes outcomes, the greater retention of residual endogenous insulin secretion likely contributes to the increased ability of children and adolescents with type 2 diabetes to maintain target HbA1c during the first 3 years of diabetes diagnosis.
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Affiliation(s)
- M A Van Name
- Pediatric Endocrinology, Yale University, New Haven, CT, USA
| | - P Cheng
- Jaeb Center for Health Research, Tampa, FL, USA
| | - R L Gal
- Jaeb Center for Health Research, Tampa, FL, USA
| | - C Kollman
- Jaeb Center for Health Research, Tampa, FL, USA
| | - J Lynch
- University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - B Nelson
- School of Medicine-Greenville, University of South Carolina, Greenville, SC, USA
| | - W V Tamborlane
- Pediatric Endocrinology, Yale University, New Haven, CT, USA
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Huang T, Zhu L, Zhang SF, Hu XY, Cheng P, Luan SQ, Chen GH. A rare case of ring chromosome 3 syndrome. J BIOL REG HOMEOS AG 2020; 34:13. [PMID: 32090537 DOI: 10.23812/19-277-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- T Huang
- Department of Pediatrics, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - L Zhu
- Department of Pediatrics, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - S F Zhang
- Department of Pediatrics, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - X Y Hu
- Department of Pediatrics, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - P Cheng
- Department of Pediatrics, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - S Q Luan
- Department of Pathology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - G H Chen
- Department of Pediatrics, The First Affiliated Hospital of Nanchang University, Nanchang, China
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Keihani S, Wright L, Alder N, Cheng P, Stoddard G, Pastuszak A, Deibert C. 372 Baseline Gonadotropin Levels do not Predict Testosterone Response in Hypogonadal Men Treated with Clomiphene Citrate. J Sex Med 2020. [DOI: 10.1016/j.jsxm.2019.11.217] [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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23
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Zhang BG, Li YP, Ma R, Cheng P, Guo XX, Wang HF, Liu LJ. [Effects of low temperature on trehalose and trehalase contents in Culex pipiens pallens]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2019; 31:510-512. [PMID: 31713380 DOI: 10.16250/j.32.1374.2018131] [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] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
OBJECTIVE To examine the effect of low temperature on trehalose and trehalase levels in Culex pipiens pallens. METHODS The fourth instar larvae and female adult mosquitoes of Cx. pipiens pallens were exposed at 4 ℃ for 0, 1, 3, 6, 12, 18, 24 h and 0, 1, 3, 6, 12, 18, 24, 36, 48, 72 h, respectively. Then, the trehalose and trehalase contents were detected by enzyme-linked immunosorbent assay (ELISA) in mosquitoes. RESULTS The contents of trehalose and trehalase significantly increased in the larval and female adult mosquitoes post-exposure to low temperature. The changing trend of trehalose levels was consistent in the larval and female adult mosquitoes, and the highest levels were (2.458 8 ± 0.379 2) mg/g and (2.825 7 ± 0.211 1) mg/g 3 h post-exposure to low temperature, respectively. The trehalose and trehalase levels fluctuated greatly within the first 6 h post-exposure to low temperature. Following adaptation for a period of time, the trehalose and trehalase levels remained at a relatively high level. CONCLUSIONS Low temperature may induce the production of trehalose and trehalase in Cx. pipiens pallens, and the trehalose and trehalase may play an important role in the improvement of the cold resistance.
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Affiliation(s)
- B G Zhang
- Shandong Institute of Parasitic Diseases, Shandong First Medical University & Shandong Academy of Medical Sciences, Jining 272033, China
| | - Y P Li
- Jinxiang County Bureau of Agriculture, Shandong Province, China
| | - R Ma
- Shandong Institute of Parasitic Diseases, Shandong First Medical University & Shandong Academy of Medical Sciences, Jining 272033, China
- Jining No. 1 People's Hospital, Shandong Province, China
| | - P Cheng
- Shandong Institute of Parasitic Diseases, Shandong First Medical University & Shandong Academy of Medical Sciences, Jining 272033, China
| | - X X Guo
- Shandong Institute of Parasitic Diseases, Shandong First Medical University & Shandong Academy of Medical Sciences, Jining 272033, China
| | - H F Wang
- Shandong Institute of Parasitic Diseases, Shandong First Medical University & Shandong Academy of Medical Sciences, Jining 272033, China
| | - L J Liu
- Shandong Institute of Parasitic Diseases, Shandong First Medical University & Shandong Academy of Medical Sciences, Jining 272033, China
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Cheng P, Lu P, Guan J, Zhou Y, Zou L, Yi X, Cheng H. LncRNA KCNQ1OT1 controls cell proliferation, differentiation and apoptosis by sponging miR-326 to regulate c-Myc expression in acute myeloid leukemia. Neoplasma 2019; 67:238-248. [PMID: 31390869 DOI: 10.4149/neo_2018_181215n972] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Accepted: 06/11/2019] [Indexed: 11/08/2022]
Abstract
Long noncoding RNAs (lncRNAs) have been reported to play essential roles in development and treatment of acute myeloid leukemia (AML). However, the role of lncRNA potassium voltage-gated channel subfamily Q member 1 overlapping transcript 1 (KCNQ1OT1) in AML progression and its mechanism remain largely unknown. The expressions of KCNQ1OT1, microRNA-326 (miR-326) and c-Myc were measured by quantitative real-time polymerase chain reaction and western blot, respectively. Phorbol myristate acetate (PMA) was used for cell differentiation. Cell proliferation, apoptosis and differentiation were measured by MTT assay, flow cytometry and qRT-PCR, respectively. The interaction between miR-326 and KCNQ1OT1 or c-Myc was explored by luciferase activity, RNA immunoprecipitation or RNA pull-down assay. We found that the expression of KCNQ1OT1 was enhanced in AML samples compared with control. KCNQ1OT1 knockdown inhibited cell proliferation but promoted apoptosis and cell differentiation. KCNQ1OT1 was a decoy of miR-326 and c-Myc was a target of miR-326. KCNQ1OT1 regulated AML cell proliferation, apoptosis and differentiation by sponging miR-326. Moreover, overexpression of miR-326 suppressed proliferation but promoted apoptosis and PMA-induced differentiation by targeting c-Myc in AML cells. Besides, c-Myc protein level was suppressed by KCNQ1OT1 interference and rescued by miR-326 abrogation. Our data showed that KCNQ1OT1 regulates proliferation, differentiation and apoptosis in AML cells by acting as a competing endogenous RNA (ceRNA) for miR-326 to regulate c-Myc, providing a novel avenue for AML treatment.
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Affiliation(s)
- P Cheng
- Department of Hematology, Wuhan No. 1 Hospital, Wuhan, China
| | - P Lu
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - J Guan
- Department of Hematology, Wuhan No. 1 Hospital, Wuhan, China
| | - Y Zhou
- Department of Hematology, Wuhan No. 1 Hospital, Wuhan, China
| | - L Zou
- Department of Hematology, Wuhan No. 1 Hospital, Wuhan, China
| | - X Yi
- Department of Hematology, Wuhan No. 1 Hospital, Wuhan, China
| | - H Cheng
- Department of Hematology, Wuhan No. 1 Hospital, Wuhan, China
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Song X, Cheng P, Wang HF, Guo XX, Lü YY, Liu HM, Liu LJ, Zhang CX, Zhao YQ, Kou JX, Wang HW, Gong MQ. [Study on insecticide resistance of Culex pipiens pallens in southwest region of Shandong Province]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2019; 32:69-72. [PMID: 32185930 DOI: 10.16250/j.32.1374.2018261] [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: 06/10/2023]
Abstract
OBJECTIVE To explore the sensitivity of Culex pipiens pallens to common chemical insecticides in the southwestern region of Shandong Province, so as to provide a theoretical basis for the development of reasonable and effective mosquito control measures. METHODS The resistance of Cx. pipiens pallens larvae to 5 chemical insecticides, such as cypermethrin, deltamethrin, DDVP, propoxur, and acetofenate were tested by using the WHO biological test method in 2018, and the co-toxicity coefficients after compounding the above-mentioned insecticides were tested by using a drug compounding method. RESULTS The resistance indexes of Cx. pipiens pallens to cypermethrin, deltamethrin, DDVP, propoxur, and acetofenate in 3 cities were 144.43-557.54, 118.17-445.33, 6.44-19.00, 2.37-8.10, and 0.88-2.98, respectively, and expect the difference between the DDVP resistances of Cx. pipiens pallens in Jining City and Heze City was not statistically significant (P > 0.05), all the other differences were statistically significant (all P < 0.05). The synergistic coefficients of cypermethrin + DDVP, cypermethrin + propoxur, DDVP + acetofenate, and propoxur + acetofenate were 199.58 - 456.95, 190.56 - 292.37, 123.32 - 319.24, and 192.31 - 367.32, respectively. The lower synergism was observed by using the mixture of DDVP + propoxur (synergistic coefficient: 99.87-108.36) . CONCLUSIONS After decades of chemical control, Cx. pipiens pallens in the southwestern region of Shandong Province has produced different degrees of resistance to common chemical insecticides. Therefore, comprehensive control measures should be taken to control mosquito breeding and prevent the development of insecticide resistance.
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Affiliation(s)
- X Song
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, China
| | - P Cheng
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - H F Wang
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - X X Guo
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - Y Y Lü
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - H M Liu
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - L J Liu
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - C X Zhang
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - Y Q Zhao
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - J X Kou
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - H W Wang
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
| | - M Q Gong
- Shandong Academy of Medical Sciences, Shandong Institute of Parasitic Diseases, Jining 272033, China
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Liu WX, Dong M, Zhang RQ, Ma ZH, Yang QF, Chen YJ, Ye YQ, Liao LM, Cheng P, Jiang ZY, Zhou M. New Benzylated Alkamide from the Roots of Lepidium meyenii. Chem Nat Compd 2019. [DOI: 10.1007/s10600-019-02781-w] [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: 11/24/2022]
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27
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Hartimath SV, Khanapur S, Boominathan R, Jiang L, Cheng P, Yong FF, Tan PW, Robins EG, Goggi JL. Imaging adipose tissue browning using the TSPO-18kDa tracer [ 18F]FEPPA. Mol Metab 2019; 25:154-158. [PMID: 31105057 PMCID: PMC6601022 DOI: 10.1016/j.molmet.2019.05.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 04/26/2019] [Accepted: 05/02/2019] [Indexed: 12/26/2022] Open
Abstract
Objectives The browning of white adipose tissue (WAT) into beige has been proposed as a strategy to enhance energy expenditure to combat the growing epidemic of obesity. Research into browning strategies are hampered by the lack of sensitive, translatable, imaging tools capable of detecting beige fat mass non-invasively. [18F]FDG is able to detect activated beige fat but provides little information on unstimulated beige fat mass. We have assessed the use of [18F]FEPPA, a tracer for the TSPO-18KDa found on the outer mitochondrial membrane, as an alternative imaging agent capable of detecting unstimulated brown fat (BAT) and beige fat. Methods Female Balb/c mice (n = 5) were treated for 7 days with the β3 adrenergic agonist CL-316,243 to induce the browning of inguinal WAT (beige fat). Animals were imaged longitudinally with [18F]FDG and [18F]FEPPA and uptake in interscapular BAT and inguinal WAT assessed. The browning of inguinal WAT was confirmed using H&E and immunohistochemical detection of UCP-1 and TSPO. Results Repeated dosing with β3-adrenergic agonist CL-316,243 caused a significant increase in [18F]FDG uptake in both interscapular BAT and inguinal WAT associated with the increased metabolic activity of brown and beige adipocytes respectively. [18F]FEPPA uptake was likewise increased in inguinal WAT but showed no increase in BAT uptake due to stimulation over the same time course. Furthermore, inguinal WAT uptake was unaffected by pharmacological blockade, indicating that [18F]FEPPA uptake is associated with the expression of mitochondria in BAT and beige adipocytes and independent of activation. Conclusion These data show that [18F]FEPPA can detect BAT and newly formed beige fat under non-stimulated, thermoneutral conditions and that uptake after stimulation is linked to mitochondrial expression as opposed to activation. TSPO-18kDa tracers can detect BAT under non-stimulated, thermoneutral conditions. TSPO-18kDa tracers can detect the formation of beige adipocytes in white adipose tissue. TSPO-18kDa tracers may aid in the development of new approaches to treat obesity.
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Affiliation(s)
- S V Hartimath
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A* STAR), 11 Biopolis Way, #07-10, Helios, 138667, Singapore
| | - S Khanapur
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A* STAR), 11 Biopolis Way, #07-10, Helios, 138667, Singapore
| | - R Boominathan
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A* STAR), 11 Biopolis Way, #07-10, Helios, 138667, Singapore
| | - L Jiang
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A* STAR), 11 Biopolis Way, #07-10, Helios, 138667, Singapore
| | - P Cheng
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A* STAR), 11 Biopolis Way, #07-10, Helios, 138667, Singapore
| | - F F Yong
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A* STAR), 11 Biopolis Way, #07-10, Helios, 138667, Singapore
| | - P W Tan
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A* STAR), 11 Biopolis Way, #07-10, Helios, 138667, Singapore
| | - E G Robins
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A* STAR), 11 Biopolis Way, #07-10, Helios, 138667, Singapore; Clinical Imaging Research Centre, Yong Loo Lin School of Medicine, National University of Singapore, 117599, Singapore
| | - J L Goggi
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A* STAR), 11 Biopolis Way, #07-10, Helios, 138667, Singapore.
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Alexander K, Barrett C, Dobos K, Cheng P, Liao R, Wheeler M, Liedtke M, Weisshaar D, Witteles R. Contemporary Outcomes in Patients with Cardiac Amyloidosis Undergoing Heart Transplantation. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.524] [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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Yang Y, Yuan L, Li J, Muhammad I, Cheng P, Xiao T, Zhang X. Preparation and evaluation of tilmicosin microspheres and lung-targeting studies in rabbits. Vet J 2019; 246:27-34. [PMID: 30902186 DOI: 10.1016/j.tvjl.2019.01.007] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 01/23/2019] [Accepted: 01/23/2019] [Indexed: 11/15/2022]
Abstract
Tilmicosin (TMS) is a macrolide used extensively for pulmonary infections in clinical veterinary medicine. However, TMS has frequent administration and short elimination half-life. Therefore, tilmicosin-gelatine microspheres (TMS-GMS) were prepared by an emulsion-chemical cross-linking technique as a sustained-release formulation to extend drug half-life. The particle size distribution, in-vitro sustained-release properties, stability, and physical characteristics, as well as pharmacokinetic (PK) characteristics, were evaluated in rabbits. TMS-GMS were spherical in shape and had a mean diameter of 11.34±1.20μm; 95.65% of the microspheres varied in size from 5.0 to 25.0μm. Light and thermal stability tests indicated no significant changes in all observed indices. Importantly, compared to crude TMS, slower release of TMS from TMS-GMS was noted in drug release studies (in vitro). Pharmacokinetic (PK) characteristics were examined in the lung, liver, heart, kidney and muscle tissue of rabbits following IM injection of TMS-GMS or TMS-injection at a dose of 10mg/kg. The elimination half-life of TMS-GMS (59.21±0.21h) was longer than that of TMS-injection (38.56±0.13h) in the lung. The ratio of peak concentration (Ce) of TMS-GMS to TMS-injection was 2.19 (>1) in the lung, demonstrating the selectivity of TMS-GMS to target the lung compared to that of other tissues (Ce<1). Interestingly, the uptake value of TMS from TMS-GMS was 8.48 times higher in the lung than that for the TMS-injection, and was slightly higher than in the liver (1.85), heart (1.72), kidney (2.44) and muscle (2.79) tissues. TMS-GMS is a sustained-release formulation of TMS with potential to be used in veterinary clinical applications; possible benefits include lung-targeting and prolonged elimination half-life.
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Affiliation(s)
- Y Yang
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Faculty of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural University,600 Changjiang Road, Xiangfang District, Harbin, PR China
| | - L Yuan
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Faculty of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural University,600 Changjiang Road, Xiangfang District, Harbin, PR China; College of Veterinary Medicine, National Reference Laboratory of Veterinary Drug Residues (SCAU), South China Agricultural University, 510642 Guangzhou, China
| | - J Li
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Faculty of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural University,600 Changjiang Road, Xiangfang District, Harbin, PR China
| | - I Muhammad
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Faculty of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural University,600 Changjiang Road, Xiangfang District, Harbin, PR China
| | - P Cheng
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Faculty of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural University,600 Changjiang Road, Xiangfang District, Harbin, PR China
| | - T Xiao
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Faculty of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural University,600 Changjiang Road, Xiangfang District, Harbin, PR China
| | - X Zhang
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Faculty of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural University,600 Changjiang Road, Xiangfang District, Harbin, PR China.
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Mellett M, Meier B, Mohanan D, Schairer R, Cheng P, Satoh T, Kiefer B, Nobbe S, Thome M, Contassot E, French L. 993 CARD14 gain-of-function mutation alone is sufficient to drive IL-23/IL-17-mediated psoriasiform skin inflammation in vivo. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1005] [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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31
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Tonnu CV, Cheng P, Kalmbach D, Fellman-Couture C, Tallent G, Arnedt J, Singh M, Drake C. 0706 Impact of Behavioral Insomnia Treatment on Post-Menopausal Female Sexual Functioning. Sleep 2018. [DOI: 10.1093/sleep/zsy061.705] [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
Affiliation(s)
| | - P Cheng
- Henry Ford Health System, Novi, MI
| | | | | | | | - J Arnedt
- University of Michigan, Ann Arbor, MI
| | - M Singh
- Henry Ford Health System, Novi, MI
| | - C Drake
- Henry Ford Health System, Novi, MI
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32
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Tallent G, Cheng P, Fellman-Couture C, Tonnu C, Moss K, Arnedt T, Drake C. 0397 Impact of Behavioral Insomnia Treatments on Quality of Life in Post-Menopausal Women. Sleep 2018. [DOI: 10.1093/sleep/zsy061.396] [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: 11/13/2022] Open
Affiliation(s)
| | - P Cheng
- Henry Ford Health Systems, Novi, MI
| | | | - C Tonnu
- Henry Ford Health Systems, Novi, MI
| | - K Moss
- Henry Ford Health Systems, Novi, MI
| | - T Arnedt
- University of Michigan, Ann Arbor, MI
| | - C Drake
- Henry Ford Health Systems, Novi, MI
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Goldschmied J, Cheng P, Armitage R, Deldin P. 0245 Examining the Effects of Slow-wave Activity Disruption on Waking EEG Theta Activity. Sleep 2018. [DOI: 10.1093/sleep/zsy061.244] [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: 11/15/2022] Open
Affiliation(s)
- J Goldschmied
- Center for Sleep and Circadian Neurobiology, University of Pennsylvania, Philadelphia, PA
| | - P Cheng
- Sleep Disorders and Research Center, Henry Ford Health System, Detroit, MI
| | | | - P Deldin
- Department of Psychology, University of Michigan, Ann Arbor, MI
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Cuamatzi-Castelan AS, Cheng P, Fellman-Couture C, Tallent G, Tran KM, Espie CA, Joseph C, Roehrs T, Drake CL. 0375 Long-term Efficacy of the Sleep to Prevent Evolving Affective Disorders (SPREAD) Trial as an Internet-based Treatment for Insomnia. Sleep 2018. [DOI: 10.1093/sleep/zsy061.374] [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: 11/14/2022] Open
Affiliation(s)
| | - P Cheng
- Henry Ford Health Systems, Novi, MI
| | | | | | - K M Tran
- Henry Ford Health Systems, Novi, MI
| | | | - C Joseph
- Henry Ford Health Systems, Novi, MI
| | - T Roehrs
- Henry Ford Health Systems, Detroit, MI
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Affiliation(s)
- P Cheng
- Henry Ford Health System, Detroit, MI
| | - O Walch
- University of Michigan, Ann Arbor, MI
| | - K Tran
- Henry Ford Health System, Detroit, MI
| | | | - C Drake
- Henry Ford Health System, Detroit, MI
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36
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Arnedt JT, Cheng P, Fellman-Couture C, Tallent G, Kalmbach D, Singh M, Roth T, Drake CL. 0394 Efficacy of Cognitive Behavioral Therapy for Insomnia on Post-Menopausal Quality of Life. Sleep 2018. [DOI: 10.1093/sleep/zsy061.393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J T Arnedt
- Michigan Medicine, University of Michigan, Ann Arbor, MI
| | - P Cheng
- Henry Ford Sleep Research Center, Detroit, MI
| | | | - G Tallent
- Henry Ford Sleep Research Center, Detroit, MI
| | - D Kalmbach
- Henry Ford Sleep Research Center, Detroit, MI
| | - M Singh
- Henry Ford Sleep Research Center, Detroit, MI
| | - T Roth
- Henry Ford Sleep Research Center, Detroit, MI
| | - C L Drake
- Henry Ford Sleep Research Center, Detroit, MI
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37
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Cheng P, Tallent G, Luik A, Peterson E, Tran K, Ahmedani B, Adler D, Roth T, Drake C. 0372 Digital Cognitive Behavioral Therapy for Insomnia Reduces Incident Depression at One-year Follow-up. Sleep 2018. [DOI: 10.1093/sleep/zsy061.371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- P Cheng
- Henry Ford Health System, Detroit, MI
| | - G Tallent
- Henry Ford Health System, Detroit, MI
| | - A Luik
- University of Oxford, Oxford, UNITED KINGDOM
| | | | - K Tran
- Henry Ford Health System, Detroit, MI
| | | | - D Adler
- Robert Wood Johnson Foundation, Princeton, NJ
| | - T Roth
- Henry Ford Health System, Detroit, MI
| | - C Drake
- Henry Ford Health System, Detroit, MI
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38
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Chiu J, Leung R, Sze H, Teo P, Choi P, Lam TC, Yau T, Cheng P, Cheung FY, Cheung P. Real world data on use of palbociclib in hormone-receptor (ER) positive HER2 negative metastatic breast cancer (MBC) among Asian patients. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx654.024] [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: 11/13/2022] Open
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39
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Kryger M, Wang W, Wu S, Xue J, Cheng P, Das I, Hu K. A Comparison of IMRT and VMAT Treatment Planning for Head and Neck Cancer With NTCP/TCP Analysis. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.2242] [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: 10/18/2022]
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40
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Xue J, Wu P, Kryger M, Wang W, Cheng P, Das I, Hu K. Limitations of Optimization Algorithm With Volumetric Modulated Arc Technique for Head and Neck Cancer Radiation Therapy. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.2384] [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: 10/18/2022]
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41
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Luo ML, Yan J, Lin FQ, Cheng P, Deng DH. [Surgical treatment of two patients with asymptomatic hereditary abnormal fibrinogen]. Zhonghua Xue Ye Xue Za Zhi 2017; 38:797-798. [PMID: 29081199 PMCID: PMC7348365 DOI: 10.3760/cma.j.issn.0253-2727.2017.09.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Indexed: 11/11/2022]
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42
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Chinniah C, Aguarin L, Cheng P, DeCesaris C, Cutillo A, Berman A, Frick M, Levin W, Cengel K, Hahn S, Dorsey J, Kao G, Simone C. Prospective Trial of Circulating Tumor Cells as a Biomarker for Early Detection of Recurrence in Patients with Locally Advanced Non–Small Cell Lung Cancer Treated with Chemoradiation Therapy. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.01.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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43
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Drake C, Cheng P, Luik A, Peterson E, Joseph C, Tallent G, Tran K, Ahmedani B, Roehrs T, Roth T. 0353 PRELIMINARY DATA FOR THE SLEEP TO PREVENT EVOLVING AFFECTIVE DISORDERS (SPREAD) TRIAL. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.352] [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: 11/13/2022] Open
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Tallent G, Cheng P, Tran K, Cuamatzi A, Drake C. 0698 PER3 POLYMORPHISM PREDICTS DIFFERENTIAL COGNITIVE IMPACTS OF CIRCADIAN MISALIGNMENT IN SHIFT WORKERS. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.697] [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: 11/13/2022] Open
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45
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Cuamatzi AS, Cheng P, Tran K, Tallent GD, Drake CL. 0688 IMPACT OF CIRCADIAN MISALIGNMENT AND BMI ON GLUCOSE DYSREGULATION IN NIGHT-SHIFT WORKERS. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.687] [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: 11/13/2022] Open
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46
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Cheng P, Fellman-Couture C, Ahmedani B, Tallent G, Arnedt J, Roehrs T, Roth T, Drake C. 1086 CBT-I FOR MENOPAUSE RELATED INSOMNIA ALSO REDUCES DEPRESSION SEVERITY. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.1085] [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: 11/14/2022] Open
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Hyde-Nolan ME, Arnedt JT, Cheng P, Fellman-Couture C, Tallent G, Kalmbach D, Singh M, Roth T, Drake CL. 0359 EFFICACY OF BEHAVIORAL INSOMNIA TREATMENT ON POST-MENOPAUSAL QUALITY OF LIFE. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.358] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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48
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Deng DH, Sun N, Long Y, Cheng P, Lai YR. [Changes of plasma TF and TFPI in 20 cases thalassemia patients before and after splenectomy]. Zhonghua Xue Ye Xue Za Zhi 2017; 38:337-339. [PMID: 28468098 PMCID: PMC7342725 DOI: 10.3760/cma.j.issn.0253-2727.2017.04.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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49
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Pang H, Stinchcombe T, Cheng P, Lee A, Lee V, Vokes E, Wang X. Comparison of chemoradiotherapy treatment strategies in stage III non-small cell lung cancer among elderly patients from multiple data sources. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx092.007] [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: 11/13/2022] Open
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50
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Fu S, Chen HH, Cheng P, Zhang CB, Wu Y. MiR-155 regulates oral squamous cell carcinoma Tca8113 cell proliferation, cycle, and apoptosis via regulating p27Kip1. Eur Rev Med Pharmacol Sci 2017; 21:937-944. [PMID: 28338203] [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: 06/06/2023]
Abstract
OBJECTIVE P27Kip1 is the one of the negative regulators of the cell cycle that plays an important role in regulating cell cycle and inhibiting cell proliferation by restraining cell in G1 phase. P27Kip1 downregulation maybe related to the occurrence of oral squamous cell carcinoma (OSCC). It was found that miR-155 significantly upregulated in OSCC tissue. Bioinformatics analysis revealed that miR-155 may bind with the 3'-UTR of p27Kip1. This study investigated the role of miR-155 in regulating p27Kip1 and affecting Tca8113 cell proliferation, cycle, and apoptosis. PATIENTS AND METHODS A total of 46 cases of OSCC patients received treatment in our hospital were enrolled to obtain tumor tissue. Another 25 normal oral mucosa samples were selected as control to detect the relationship between miR-155 and p27Kip1 expressions. Dual luciferase assay was adopted to confirm the targeted relationship between miR-155 and p27Kip1. Flow cytometry was applied to test cell apoptosis and cell cycle. CCK-8 assay was used to evaluate cell proliferation. Caspase-3 activity was detected by spectrophotometry. RESULTS MiR-155 upregulated, while p27Kip1 declined in OSCC tissue compared with normal oral mucosa. Their expressions were related to TNM stage. MiR-155 targeted suppressed p27Kip1 expression. MiR-155 mimic and/or pEGFP-p27Kip1 transfection obviously declined p27Kip1 expression, blocked cell cycle in G1 phase, reduced cell proliferation, enhanced Caspase-3 activity, and increased cell apoptosis in Tca8113 cells. CONCLUSIONS MiR-155 increased, while p27Kip1 reduced in OSCC tissue. Inhibition of miR-155 upregulated p27Kip1 expression, blocked cell cycle in G1 phase, weakened cell proliferation, and induced cell apoptosis.
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Affiliation(s)
- S Fu
- Department of Oral and Maxillofacial Surgery, the Affiliated Stomatology Hospital of Kunming Medical University, Yunnan, Kunming, China.
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