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Chen YT, Hou BX. [Advances in the application of the bony window technique in endodontic microsurgery]. Zhonghua Kou Qiang Yi Xue Za Zhi 2024; 59:507-511. [PMID: 38637006 DOI: 10.3760/cma.j.cn112144-20231018-00204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
The bony window technique refers to cutting the intact bone plate to form a bone window and a free bone block to get access to lesions under the bone. At the end of the surgery, the dislocated bony lid needs to be repositioned to its original position. In endodontic microsurgery, compared with conventional osteotomy, the bony window technique has the advantages of improving the view of surgery and operability, reducing postoperative bone defects, promoting bone healing, and maintaining the integrity of the jaw outline. Accurate positioning and preparation of the bony window are important prerequisites for subsequent operations during the surgery, but it's difficult in some situations, such as when the operative area is located posteriorly or the bone cortex on the lesion surface is thick and intact. What's more, whether the free bone block can be stabilized in situ after repositioning is closely related to the prognosis of the surgery. The complementary application of digital navigation technology and bone cavity filling materials may help to improve the bony window technique and provide more possibilities for the retention of affected teeth in difficult cases.
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Affiliation(s)
- Y T Chen
- Center for Microscope Enhanced Dentistry, Capital Medical University School of Stomatology, Beijing 100162, China
| | - B X Hou
- Center for Microscope Enhanced Dentistry, Capital Medical University School of Stomatology, Beijing 100162, China
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Huang PJ, Weng YC, Huang KY, Lee CC, Yeh YM, Chen YT, Chiu CH, Tang P. ProFun: A web server for functional enrichment analysis of parasitic protozoan genes. J Microbiol Immunol Infect 2024:S1684-1182(24)00008-2. [PMID: 38311498 DOI: 10.1016/j.jmii.2024.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 01/05/2024] [Accepted: 01/24/2024] [Indexed: 02/06/2024]
Abstract
BACKGROUND The initial step to interpreting putative biological functions from comparative multi-omics studies usually starts from a differential expressed gene list followed by functional enrichment analysis (FEA). However, most FEA packages are designed exclusively for humans and model organisms. Although parasitic protozoan is the most important pathogen in the tropics, no FEA package is available for protozoan functional (ProFun) enrichment analysis. To speed up comparative multi-omics research on parasitic protozoans, we constructed ProFun, a web-based, user-friendly platform for the research community. METHODS ProFun utilizes the Docker container, ShinyProxy, and R Shiny to construct a scalable web service with load-balancing infrastructure. We have integrated a series of visual analytic functions, in-house scripts, and custom-made annotation packages to create three analytical modules for 40 protozoan species: (1) Gene Overlaps; (2) Over-representation Analysis (ORA); (3) Gene Set Enrichment Analysis (GSEA). RESULTS We have established ProFun, a web server for functional enrichment analysis of differentially expressed genes. FEA becomes as simple as pasting a list of gene IDs into the textbox of our website. Users can customize enrichment parameters and results with just one click. The intuitive web interface and publication-ready charts enable users to reveal meaningful biological events and pinpoint potential targets for further studies. CONCLUSION ProFun is the first web application that enables gene functional enrichment analysis of parasitic protozoans. In addition to supporting FEA analysis, ProFun also allows the comparison of FEA results across complicated experimental designs. ProFun is freely available at http://dalek.cgu.edu.tw:8080/app/profun.
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Affiliation(s)
- Po-Jung Huang
- Department of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan; Genomic Medicine Research Core Laboratory, Chang Gung Memorial Hospital, Linkou, Taiwan.
| | - Yi-Chen Weng
- School of Medicine, Chang Gung University, Taoyuan, Taiwan.
| | - Kuo-Yang Huang
- Graduate Institute of Pathology and Parasitology, National Defense Medical Center, Taipei, Taiwan.
| | - Chi-Ching Lee
- Genomic Medicine Research Core Laboratory, Chang Gung Memorial Hospital, Linkou, Taiwan; Department and Graduate Institute of Computer Science and Information Engineering, Chang Gung University, Taoyuan, Taiwan.
| | - Yuan-Ming Yeh
- Genomic Medicine Research Core Laboratory, Chang Gung Memorial Hospital, Linkou, Taiwan.
| | - Yu-Tong Chen
- Department of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan.
| | - Cheng-Hsun Chiu
- Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan.
| | - Petrus Tang
- Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan; Department of Parasitology, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
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Wu W, Sun NJ, Xu Y, Chen YT, Liu XF, Shi LY, Chen W, Zhu QG, Gong BC, Yin XR, Yang ZF. Exogenous gibberellin delays maturation in persimmon fruit through transcriptional activators and repressors. Plant Physiol 2023; 193:840-854. [PMID: 37325946 DOI: 10.1093/plphys/kiad351] [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] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 05/21/2023] [Indexed: 06/17/2023]
Abstract
As the harvest season of most fruit is concentrated, fruit maturation manipulation is essential for the fresh fruit industry to prolong sales time. Gibberellin (GA), an important phytohormone necessary for plant growth and development, has also shown a substantial regulatory effect on fruit maturation; however, its regulatory mechanisms remain inconclusive. In this research, preharvest GA3 treatment effectively delayed fruit maturation in several persimmon (Diospyros kaki) cultivars. Among the proteins encoded by differentially expressed genes, 2 transcriptional activators (NAC TRANSCRIPTION FACTOR DkNAC24 and ETHYLENE RESPONSIVE FACTOR DkERF38) and a repressor (MYB-LIKE TRANSCRIPTION FACTOR DkMYB22) were direct regulators of GERANYLGERANYL DIPHOSPHATE SYNTHASE DkGGPS1, LYSINE HISTIDINE TRANSPORTER DkLHT1, and FRUCTOSE-BISPHOSPHATE ALDOLASE DkFBA1, respectively, resulting in the inhibition of carotenoid synthesis, outward transport of an ethylene precursor, and consumption of fructose and glucose. Thus, the present study not only provides a practical method to prolong the persimmon fruit maturation period in various cultivars but also provides insights into the regulatory mechanisms of GA on multiple aspects of fruit quality formation at the transcriptional regulation level.
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Affiliation(s)
- Wei Wu
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang 315100, China
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong 266100, China
| | - Ning-Jing Sun
- College of Resources and Environment Sciences, Baoshan University, Baoshan, Yunnan 678000, China
| | - Yang Xu
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, Zhejiang 311400, China
| | - Yu-Tong Chen
- Department of Horticulture, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Xiao-Fen Liu
- Department of Horticulture, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Li-Yu Shi
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang 315100, China
| | - Wei Chen
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang 315100, China
| | - Qing-Gang Zhu
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Bang-Chu Gong
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, Zhejiang 311400, China
| | - Xue-Ren Yin
- Department of Horticulture, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Zhen-Feng Yang
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang 315100, China
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Mo SF, Cai ZZ, Kuai WH, Li X, Chen YT. Universal cutoff for tumor mutational burden in predicting the efficacy of anti-PD-(L)1 therapy for advanced cancers. Front Cell Dev Biol 2023; 11:1209243. [PMID: 37305681 PMCID: PMC10248461 DOI: 10.3389/fcell.2023.1209243] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 05/12/2023] [Indexed: 06/13/2023] Open
Abstract
Background: The US Food and Drug Administration (FDA)'s tumor-agnostic approval of pembrolizumab in high tumor mutational burden (TMB-high, i.e., TMB≥10 mut/Mb) cases, based on the data from KEYNOTE-158, has raised considerable concerns among the immuno-oncology community. This study aims to statistically infer the optimal universal cutoff in defining TMB-high that is predictive of the efficacy of anti-PD-(L) 1 therapy in advanced solid tumors. Methods: We integrated MSK-IMPACT TMB data from a public cohort and the objective response rate (ORR) for anti-PD-(L) 1 monotherapy across diverse cancer types in published trials. The optimal TMB cutoff was determined by varying the universal cutoff to define TMB-high across cancer types and examining the cancer-level correlation between objective response rate and the proportion of TMB-high cases. The utility of this cutoff in predicting overall survival (OS) benefits from anti-PD-(L) 1 therapy was then evaluated in a validation cohort of advanced cancers with coupled MSK-IMPACT TMB and OS data. In silico analysis of whole-exome sequencing data from The Cancer Genome Atlas was further employed to assess the generalizability of the identified cutoff among panels comprising several hundred genes. Results: The cancer type-level analysis identified 10 mut/Mb as the optimal cutoff for MSK-IMPACT in defining TMB-high, with the corresponding TMB-high (TMB≥10 mut/Mb) percentage strongly correlated with ORR for PD-(L) 1 blockade across cancer types [correlation coefficient, 0.72 (95% CI, 0.45-0.88)]. This cutoff was also the optimum in defining TMB-high (via MSK-IMPACT) when predicting OS benefits from anti-PD-(L) 1 therapy in the validation cohort. In this cohort, TMB≥10 mut/Mb was associated with significantly improved OS (hazard ratio, 0.58 [95% CI, 0.48-0.71]; p < 0.001). Moreover, in silico analyses revealed excellent agreement of TMB≥10 mut/Mb cases between MSK-IMPACT and the FDA-approved panels and between MSK-IMPACT and various randomly sampled panels. Conclusion: Our study demonstrates that 10 mut/Mb is the optimal, universal cutoff for TMB-high that guides the clinical application of anti-PD-(L) 1 therapy for advanced solid tumors. It also provides rigorous evidence beyond KEYNOTE-158 for the utility of TMB≥10 mut/Mb in predicting the efficacy of PD-(L) 1 blockade in broader settings, which could help to mitigate the challenges in embracing the tumor-agnostic approval of pembrolizumab in TMB-high cases.
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Affiliation(s)
- Shu-Fen Mo
- Department of Medical Oncology, Guangdong Agriculture Reclamation Central Hospital, Zhanjiang, China
| | - Zeng-Zhi Cai
- Department of Medical Oncology, Guangdong Agriculture Reclamation Central Hospital, Zhanjiang, China
| | - Wen-Hao Kuai
- Department of Dermatology, Changhai Hospital of Shanghai, Second Military Medical University (Naval Medical University), Shanghai, China
| | - Xuexin Li
- Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden
| | - Yu-Tong Chen
- Department of Dermatology, Changhai Hospital of Shanghai, Second Military Medical University (Naval Medical University), Shanghai, China
- Faculty of Medical Science, Jinan University, Guangzhou, China
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Wang B, Li WN, Li X, Li HY, Chen YT, Li Y, Ding HT. [Regulating the immune response to carbon tetrachloride-induced liver fibrosis in mice by blocking inducible co-stimulatory molecules and interleukin-33]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:504-508. [PMID: 37365027 DOI: 10.3760/cma.j.cn501113-20211019-00516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Objective: To investigate the effects of combined blockade of interleukin-33 (IL-33) and inducible co-stimulatory molecule (ICOS) on carbon tetrachloride-induced chronic liver fibrosis and imbalance of T helper lymphocyte subsets in mice. Methods: There were 40 BALB/c mice in each model and control group. Flow cytometry was used to determine the proportion of Th1/Th2/Th17 cells in the splenic lymphocyte suspension of mice, the expression levels of interferon γ, IL-4, and IL-17 in the splenic lymphocyte suspension of liver fibrosis mice after combined blockade of IL-33 and ICOS, and the pathological changes of liver histopathology in mice with liver fibrosis. Two independent sample t-test was used to compare data between groups. Results: Compared with the non-blocking group, the proportion of Th2 and Th17 cells in the IL-33/ICOS blocking group was significantly down-regulated (Th2: 65.96% ± 6.04% vs. 49.09% ± 7.03%; Th17: 19.17% ± 4.03% vs. 9.56% ± 2.03%), while the proportion of Th1 cells and Th1/Th2 ratio were up-regulated (Th1: 17.14% ± 3.02% vs. 31.93% ± 5.02%; Th1/Th2: 0.28 ± 0.06 vs. 0.62 ± 0.23), and the difference was statistically significant (t = 5.15, 6.03, 7.14, 4.28, respectively, with P < 0.05). After entering the chronic inflammation stage of liver fibrosis in mice (10 weeks), compared with the non-blocking group, the expression levels of IL-4 and IL-17 in the blockade group were significantly down-regulated [IL-4: (84.75 ± 14.35) pg/ ml vs. (77.88 ± 19.61) pg/ml; IL-17: (72.38 ± 15.13) pg/ml vs. (36.38 ± 8.65) pg/ml], while the expression of interferon γ was up-regulated [(37.25 ± 11.51) pg/ml vs. (77.88 ± 19.61) pg/ml], and the difference was statistically significant (t: IL-4: 4.71; IL-17: 5.84; interferon γ: 5.05, respectively, with P < 0.05). Liver histopathological results showed that hepatic necrosis, hepatic lobular structural disorder, and fibrous tissue hyperplasia were significantly lower in the blockade group than those in the non-blocking group at 13 weeks of liver fibrosis. Conclusion: Combined blockade of the ICOS signaling pathway and IL-33 can regulate Th2 and Th17 polarization, down-regulate the inflammatory response, and inhibit or prevent the occurrence and progression of fibrosis.
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Affiliation(s)
- B Wang
- Clinical Laboratory, Inner Mongolia People's Hospital, Hohhot 010017, China
| | - W N Li
- Clinical Laboratory, Inner Mongolia People's Hospital, Hohhot 010017, China
| | - X Li
- Clinical Laboratory, Inner Mongolia People's Hospital, Hohhot 010017, China
| | - H Y Li
- Clinical Laboratory, Inner Mongolia People's Hospital, Hohhot 010017, China
| | - Y T Chen
- Clinical Laboratory, Inner Mongolia People's Hospital, Hohhot 010017, China
| | - Y Li
- Clinical Laboratory, Inner Mongolia People's Hospital, Hohhot 010017, China
| | - H T Ding
- Clinical Laboratory, Inner Mongolia People's Hospital, Hohhot 010017, China
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Chen YT, Chiu HY. Short-term Risks of Major Adverse Cardiovascular Events associated with Janus Kinase Inhibitors in Patients with Atopic Dermatitis: A Systematic Review and Meta-Analysis. J Eur Acad Dermatol Venereol 2023. [PMID: 37016979 DOI: 10.1111/jdv.19102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 03/29/2023] [Indexed: 04/06/2023]
Affiliation(s)
- Y T Chen
- Department of Dermatology, National Taiwan University Hospital Hsin-Chu Branch, Taiwan
| | - H Y Chiu
- Department of Dermatology, National Taiwan University Hospital Hsin-Chu Branch, Taiwan
- Department of Dermatology, National Taiwan University Hospital, Taipei, Taiwan
- Department of Dermatology, College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Medical Research, National Taiwan University Hospital Hsin-Chu Branch, Taiwan
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Yan HX, He F, Chen YT, Guo CG, Wei JJ, Zhao DB. [Factors associated with readmission within three months of surgery for gastric cancer and their long-term effects on patients' nutritional status and quality of life]. Zhonghua Wei Chang Wai Ke Za Zhi 2023; 26:191-198. [PMID: 36797566 DOI: 10.3760/cma.j.cn441530-20220423-00174] [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 analyze the factors associated with readmission within three months of surgery for gastric cancer and the impact of readmission on patients' long-term nutritional status and quality of life. Methods: This was a prospective cohort study comprising patients who underwent radical gastrectomy in the Department of Pancreatic and Gastric Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences from October 2018 to August 2019. Patients who failed to complete postoperative follow-up, whose body mass index (BMI) could not be accurately estimated, or who were unable to complete a quality-of-life questionnaire were excluded. The patients were followed up for 12 months. Time to, cause(s) of, and outcomes of readmission were followed up 1, 2 and 3 months postoperatively. BMI was followed up 1, 3, 6 and 12 months postoperatively. Results of blood tests were collected and patients' nutritional status and quality of life were assessed 12 months postoperatively. Nutritional status was evaluated by BMI, hemoglobin, albumin, and total lymphocyte count. Quality of life was evaluated using the European Organization for Research in the Treatment of Cancer (EORTC) Quality of Life scale. The higher the scores for global health and functional domains, the better the quality of life, whereas the higher the score in the symptom domain, the worse the quality of life. Results: The study cohort comprised 259 patients with gastric cancer, all of whom were followed up for 3 months and 236 of whom were followed up for 12 months. Forty-four (17.0%) patients were readmitted within 3 months. The commonest reasons for readmission were gastrointestinal dysfunction (16 cases, 36.3%), intestinal obstruction (8 cases, 18.2%), and anastomotic stenosis (8 cases, 18.2%). Logistic regression analysis showed that preoperative Patient-Generated Subjective Global Assessment score ≥ 4 points (OR=1.481, 95% CI: 1.028‒2.132), postoperative complications (OR=3.298, 95%CI:1.416‒7.684) and resection range (OR=1.582, 95% CI:1.057‒2.369) were risk factors for readmission within 3 months of surgery. Compared with patients who had not been readmitted 12 months after surgery, patients who were readmitted within 3 months of surgery tended to have greater decreases in their BMI [-2.36 (-5.13,-0.42) kg/m2 vs. -1.73 (-3.33,-0.33) kg/m2, Z=1.850, P=0.065), significantly lower hemoglobin and albumin concentrations [(122.1±16.6) g/L vs. (129.8±18.4) g/L, t=2.400, P=0.017]; [(40.9±5.0) g/L vs. (43.4±3.3) g/L, t=3.950, P<0.001], and significantly decreased global health scores in the quality of life assessment [83 (67, 100) vs. 100 (83, 100), Z=2.890,P=0.004]. Conclusion: Preoperative nutritional risk, total or proximal radical gastrectomy, and complications during hospitalization are risk factors for readmission within 3 months of surgery for gastric cancer. Perioperative management and postoperative follow-up should be more rigorous. Readmission within 3 months after surgery may be associated with a decline in long-term nutritional status and quality of life. Achieving improvement in long-term nutritional status and quality of life requires tracking of nutritional status, timely evaluation, and appropriate interventions in patients who need readmission.
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Affiliation(s)
- H X Yan
- Department of Pancreatic and Gastric Surgery, National Cancer Center National Clinical Research Center for Cancer Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - F He
- Department of Pancreatic and Gastric Surgery, National Cancer Center National Clinical Research Center for Cancer Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y T Chen
- Department of Pancreatic and Gastric Surgery, National Cancer Center National Clinical Research Center for Cancer Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - C G Guo
- Department of Pancreatic and Gastric Surgery, National Cancer Center National Clinical Research Center for Cancer Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J J Wei
- Department of Pancreatic and Gastric Surgery, National Cancer Center National Clinical Research Center for Cancer Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - D B Zhao
- Department of Pancreatic and Gastric Surgery, National Cancer Center National Clinical Research Center for Cancer Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Luo SJ, Zheng JX, Chen YT, Xie ZW, Yang ZS, Chen GJ, Wang CC, Dong ZY. [Effects of bariatric surgery on sex hormones in male patients with obesity]. Zhonghua Wei Chang Wai Ke Za Zhi 2022; 25:921-927. [PMID: 36245118 DOI: 10.3760/cma.j.cn441530-20220429-00190] [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: 06/16/2023]
Abstract
Objective: To analyze and evaluate the differences in sex hormones after laparoscopic Roux-en-Y Gastric Bypass Surgery (LRYGB) and laparoscopic sleeve gastrectomy (LSG) in male patients with obesity. Methods: This study was a retrospective cohort study. The inclusion criteria were (1) male patients with obesity who met the surgical indications of the "Chinese Guidelines for Surgical Treatment of Obesity and Type 2 Diabetes" (2019 Edition); (2) patients with a body mass index (BMI) of ≥27.5 kg/m2 and obesity-related metabolic diseases, or patients with severe obesity and a BMI of ≥35 kg/m2; and (3) sex hormone levels checked 1 year after surgery. The exclusion criteria included (1) patients with endocrine diseases (thyrotoxicosis, hyperprolactinemia) and hypothalamic-pituitary lesions and (2) those with severe major organ dysfunction who could not tolerate anesthesia or surgery. According to the above criteria, the clinical data of male patients with obesity admitted to the Gastrointestinal Surgery/Bariatric Center of the First Affiliated Hospital of Jinan University from October 2017 to January 2020 were included. A total of 52 male patients with obesity were included in this study. The mean age, body weight, BMI, and total testosterone level were (29.3±10.2) years, (123.6±35.4) kg, (40.1±11.1) kg/m2, and 7.6 (5.5, 9.1) nmol/L, respectively. Forty-five patients (86.5%) exhibited testosterone deficiency. Among all the patients, 29 underwent LSG (LSG group) and 23 underwent LRYGB surgery (LRYGB group). The main outcome measure was the change in sex hormone levels before and after bariatric surgery in all the patients. The secondary outcome measures were the comparison of changes in sex hormone levels before and after LSG and LRYGB. Results: Pearson correlation analysis showed that preoperative estradiol was positively correlated with waist circumference (R=0.299, P<0.05), hip circumference (R=0.326, P<0.05), and chest circumference (R=0.388, P<0.05). Testosterone was negatively correlated with BMI (R=-0.563, P<0.01), waist circumference (R=-0.521, P<0.01), hip circumference (R=-0.456, P<0.01), chest circumference (R=-0.600, P<0.01), and neck circumference (R=-0.547, P<0.01). One year following bariatric surgery, the serum testosterone (7.6 [5.5, 9.1] nmol/L vs. 13.6 [10.5, 15.4] nmol/L, Z=-5.910, P<0.001), follicle-stimulating hormone (4.7 [2.7, 5.3] IU/L vs. 6.5 [3.6, 7.8] IU/L, Z=-4.658, P<0.001), and progesterone (1.2 [0.4, 1.5] nmol/L vs. 1.9 [0.8, 1.3] nmol/L, Z=-2.542, P=0.011) levels were significantly higher in all the patients. Both estradiol (172.8 [115.6, 217.5] pmol/L vs. 138.3 [88.4, 168.1] pmol/L, Z=-2.828, P=0.005) and prolactin (11.4 [6.4, 14.6] mIU/L vs. 8.6 [4.8, 7.3] mIU/L, Z=-2.887, P=0.004) levels were decreased. In addition to prolactin levels in the LRYGB group, there were statistically significant differences in the levels of estradiol (P=0.030), follicle-stimulating hormone (P < 0.001), luteinizing hormone (P=0.033), progesterone (P=0.034), and testosterone (P<0.001) compared with their preoperative levels. In the LSG group, there were statistically significant differences in the levels of follicle-stimulating hormone (P=0.011), prolactin (P=0.023), and testosterone (P<0.001) compared with their preoperative levels. Conclusion: The degree of obesity in men was negatively correlated with testosterone levels. Both LRYGB and LSG can significantly improve sex hormone levels in male patients with obesity, and testosterone levels show a significant increase after surgery.
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Affiliation(s)
- S J Luo
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - J X Zheng
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - Y T Chen
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - Z W Xie
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - Z S Yang
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - G J Chen
- Department of Metabolic and Bariatric Surgery, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - C C Wang
- Department of Metabolic and Bariatric Surgery, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Z Y Dong
- Department of Metabolic and Bariatric Surgery, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China
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9
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Chen YT, Zhang W, Gu YP, Zhou R, Kong TT, Li J, Shi J. [Chinesization of the quality of life scale and its reliability and validity tests for non-alcoholic fatty liver disease]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:981-985. [PMID: 36299193 DOI: 10.3760/cma.j.cn501113-20220811-00416] [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: 06/16/2023]
Abstract
Objective: To translate the English version of the non-alcoholic fatty liver disease quality of life scale (CLDQ-NAFLD) into the Chinese version in order to test its reliability and validity. Methods: The English version of the CLDQ-NAFLD was translated according to the cross-cultural research tool debugging and validation guidelines to form the Chinese version of the CLDQ-NAFLD. A questionnaire survey was conducted on 515 NAFLD cases in a tertiary hospital in Hangzhou from September 2021 to April 2022 to evaluate the reliability and validity of the scale. Results: The Chinese version of the CLDQ-NAFLD contained six domains with a total of thirty-six items (X2/DF=3.105, RMSEA=0.064, TLI=0.905, CFI=0.912, and IFI=0.913). I-CVI, S-CVI/UA, and S-CVI/Ave was 0.83 to 1.00, 0.86 and 0.98, respectively. The 12-item Short-Form Health Survey (SF-12) was used as the calibration standard, and the correlation validity of the calibration standard was 0.704 (P<0.001). The Cronbach's alpha coefficient of the total scale and each dimension of the scale was 0.964 and 0.807-0.956, respectively. The test-retest reliability was 0.839. Conclusion: The Chinese version of the CLDQ-NAFLD has good reliability and validity. Thus, it can be used to evaluate the quality of life for NAFLD patients with a Chinese cultural background.
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Affiliation(s)
- Y T Chen
- Hangzhou Normal University, Hangzhou 310011, China
| | - W Zhang
- The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310015, China
| | - Y P Gu
- Hangzhou Normal University, Hangzhou 310011, China
| | - R Zhou
- Hangzhou Normal University, Hangzhou 310011, China
| | - T T Kong
- Hangzhou Normal University, Hangzhou 310011, China
| | - J Li
- Department of Infectious Diseases, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Junping Shi
- The Affiliated Hospital of Hangzhou Normal University, Hangzhou 310015, China
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Ye T, Yuan SY, Fan L, Feng LW, Chen YT, Chen J. [Retrospective study on the efficacy and safety of low dose apatinib in reversing chemotherapy resistance in sarcoma]. Zhonghua Yi Xue Za Zhi 2022; 102:2435-2440. [PMID: 36000372 DOI: 10.3760/cma.j.cn112137-20220106-00039] [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: 06/15/2023]
Abstract
Objective: To explore whether apatinib can reverse the chemotherapy resistance of patients with advanced sarcoma. Methods: The clinical data of advanced sarcoma patients after chemotherapy who received the original chemotherapy regimen combined with low-dose apatinib in Cancer Center of Union Hospital affiliated to Tongji Medical College of Huazhong University of Science and Technology from May 2018 to November 2021 were collected retrospectively to evaluate the efficacy and safety of this regimen. The primary end point was progression-free survival (PFS), and the secondary end points were objective response rate (ORR), disease control rate (DCR), overall survival (OS) and adverse events (AE). The patients were grouped according to the diagnosis: osteosarcoma, soft tissue sarcoma and undifferentiated small round cell sarcoma. And the benefits of combination treatment was investigated with the stratified analysis of best outcome of combined therapy, lines of chemotherapy received, best response and PFS of original chemotherapy. Results: A total of 30 patients were included in this study, including 20 males and 10 females. The mean age was (25.6±14.7) years. There were 9 cases of osteosarcoma, 11 cases of soft tissue sarcoma and 10 cases of undifferentiated small round cell sarcoma. No patient achieved complete response, 8 patients (26.7%) achieved partial response, 19 patients (63.3%) achieved disease stability, the ORR was 26.7%(8/30), and the DCR was 90.0%(27/30). The median PFS and OS were 4.1 and 13.1 months respectively. Among the three different subtypes of sarcoma, the ORR of osteosarcoma was 44.4% (4/9), the median PFS was 4.1 months, and the median OS was not yet achieved; the ORR of undifferentiated small round cell sarcoma was 40% (4/10), the median PFS was 6.4 months, and the median OS was 10.9 months; No response was observed in soft tissue sarcoma, and the median PFS and median OS was 3.5 and 7.3 months respectively. Patients who achieved objective response had better PFS than patients with stable disease (12.8 vs 3.8 months, P=0.015), and patients with PFS≥ 6 months of original chemotherapy had better PFS benefits (12.7 vs 2.7 months, P<0.001). However, the number of original chemotherapy lines and the best response of original chemotherapy had no significant effect on the PFS of this combination regimen. In terms of safety, the related toxicity of apatinib was no more than grade 2, and the grade 4 chemotherapy-related adverse reactions was mainly hematological toxicity, of which 2 patients interrupted treatment because of febrile neutropenia. Conclusion: Low dose apatinib is effective in reversing chemotherapy resistance of osteosarcoma and undifferentiated small round cell sarcoma with acceptable adverse reactions.
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Affiliation(s)
- T Ye
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - S Y Yuan
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - L Fan
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - L W Feng
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Y T Chen
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - J Chen
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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11
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Xin NC, Qin HR, Miao SN, Chen YT, Zheng Y, Han JZ, Zhang JW, Wang LJ. Laser-cooled 171Yb + microwave frequency standard with a short-term frequency instability of 8.5 × 10 -13/√τ. Opt Express 2022; 30:14574-14585. [PMID: 35473197 DOI: 10.1364/oe.453423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 03/20/2022] [Indexed: 06/14/2023]
Abstract
We report on the development of a microwave frequency standard based on a laser-cooled 171 Y b + ion trap system. The electronics , lasers, and magnetic shields are integrated into a single physical package. With over 105 ions are stably trapped, the system offers a high signal-to-noise ratio Ramsey line-shape. In comparison with previous work, the frequency instability of a 171 Y b + microwave clock was further improved to 8.5×10-13/τ for averaging times between 10 and 1000 s. Essential systematic shifts and uncertainties are also estimated.
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12
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Chen YT, Gao MJ, Zheng ZB, Huang L, Du Q, Zhu DW, Liu YM, Jin Z. Comparative analysis of cystic biliary atresia and choledochal cysts. Front Pediatr 2022; 10:947876. [PMID: 36090570 PMCID: PMC9448952 DOI: 10.3389/fped.2022.947876] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 07/27/2022] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVE Cystic biliary atresia (CBA) is a rare and peculiar type of biliary atresia (BA) that is easily confused with infantile choledochal cysts (CCs). This study explored information for early CBA diagnosis and treatment. METHOD The authors retrospectively analyzed the clinical data of 32 children with hilar cysts from January 2013 to May 2021. According to the diagnosis, they were divided into the CBA (n = 12) and CC (n = 20) groups. Patient features, biochemical indexes, preoperative ultrasound characteristics, cholangiography features, and intraoperative findings were analyzed and compared between the two groups. RESULTS The alanine aminotransferase, aspartate aminotransferase, total bilirubin, and direct bilirubin levels in the CBA group were higher than in the CCs group (P < 0.05). Additionally, B-mode ultrasound showed a cystic mass in front of the hepatic hilum, and the cyst size was much smaller in the CBA group compared with the CC group (2.2 ± 1.3 cm vs. 6.0 ± 2.2 cm, P < 0.001). Among all of the parameters, cyst width was the most accurate for identifying CBA and CCs. A cutoff value of 2.5 cm (area under the curve, 0.98, P < 0.001) showed 90.9% sensitivity and 95% specificity for cyst size. CONCLUSION For children with early-onset severe jaundice, and if the width of the cystic mass was ≤2.5 cm, a diagnosis of CBA was highly likely. Early cholangiography and surgical treatment are necessary for the effective treatment of these infants.
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Affiliation(s)
- Yu-Tong Chen
- Department of Pediatric Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China.,Department of Pediatric Surgery, Guizhou Children's Hospital, Zunyi, China
| | - Ming-Juan Gao
- Department of Pediatric Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China.,Department of Pediatric Surgery, Guizhou Children's Hospital, Zunyi, China
| | - Ze-Bing Zheng
- Department of Pediatric Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China.,Department of Pediatric Surgery, Guizhou Children's Hospital, Zunyi, China
| | - Lu Huang
- Department of Pediatric Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China.,Department of Pediatric Surgery, Guizhou Children's Hospital, Zunyi, China
| | - Qing Du
- Department of Pediatric Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China.,Department of Pediatric Surgery, Guizhou Children's Hospital, Zunyi, China
| | - Dai-Wei Zhu
- Department of Pediatric Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China.,Department of Pediatric Surgery, Guizhou Children's Hospital, Zunyi, China
| | - Yuan-Mei Liu
- Department of Pediatric Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China.,Department of Pediatric Surgery, Guizhou Children's Hospital, Zunyi, China
| | - Zhu Jin
- Department of Pediatric Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China.,Department of Pediatric Surgery, Guizhou Children's Hospital, Zunyi, China
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13
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Chen YT, Liu WS, Su KY, Hsu YH, Chang CH. Acute heart failure with dilated cardiomyopathy as the first manifestation of eosinophilic granulomatosis with polyangiitis. J Eur Acad Dermatol Venereol 2021; 36:e125-e128. [PMID: 34553425 DOI: 10.1111/jdv.17693] [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: 06/02/2021] [Revised: 08/26/2021] [Accepted: 09/16/2021] [Indexed: 12/01/2022]
Affiliation(s)
- Y T Chen
- Department of Dermatology, Skin Institute, Hualian Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - W S Liu
- Department of Cardiovascular Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - K Y Su
- Division of Allergy, Immunology and Rheumatology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Y H Hsu
- School of Medicine, Tzu Chi University, Hualien, Taiwan.,Department of Pathology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - C H Chang
- Department of Dermatology, Skin Institute, Hualian Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan.,Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan.,Doctoral Degree Program in Translational Medicine, Tzu Chi University and Academia Sinica, Hualien, Taiwan
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14
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Liu YB, Xu BC, Chen YT, Yuan X, Liu JY, Liu T, Du GZ, Jiang W, Yang Y, Zhu Y, Chen LJ, Ding BS, Wei YQ, Yang L. Directed evolution of AAV accounting for long-term and enhanced transduction of cardiovascular endothelial cells in vivo. Mol Ther Methods Clin Dev 2021; 22:148-161. [PMID: 34485601 PMCID: PMC8397840 DOI: 10.1016/j.omtm.2021.05.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 05/28/2021] [Indexed: 02/05/2023]
Abstract
Cardiac endothelial cells (ECs) are important targets for cardiovascular gene therapy. However, the approach of stably transducing ECs in vivo using different vectors, including adeno-associated virus (AAV), remains unexamined. Regarding this unmet need, two AAV libraries from DNA shuffling and random peptide display were simultaneously screened in a transgenic mouse model. Cardiac ECs were isolated by cell sorting for salvage of EC-targeting AAV. Two AAV variants, i.e., EC71 and EC73, enriched in cardiac EC, were further characterized for their tissue tropism. Both of them demonstrated remarkably enhanced transduction of cardiac ECs and reduced infection of liver ECs in comparison to natural AAVs after intravenous injection. Significantly, persistent transgene expression was maintained in mouse cardiac ECs in vivo for at least 4 months. The EC71 vector was selected for delivery of the endothelial nitric oxide synthase (eNOS) gene into cardiac ECs in a mouse model of myocardial infarction. Enhanced eNOS activity was observed in the mouse heart and lung, which was correlated with partially improved cardiac function. Taken together, two AAV capsids were evolved with more efficient transduction in cardiovascular endothelium in vivo, but their endothelial tropism might need to be further optimized for practical application to cardiac gene therapy.
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Affiliation(s)
- Y B Liu
- Department of Cardiology and Laboratory of Gene Therapy for Heart Diseases, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, China
| | - B C Xu
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Y T Chen
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, China
| | - X Yuan
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - J Y Liu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital of Sichuan University, Chengdu, China
| | - T Liu
- Department of Anesthesiology, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - G Z Du
- Department of Anesthesiology, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - W Jiang
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Y Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center, Chengdu, Sichuan, China
| | - Y Zhu
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - L J Chen
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital of Sichuan University, Chengdu, China
| | - B S Ding
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, China
| | - Y Q Wei
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - L Yang
- Department of Cardiology and Laboratory of Gene Therapy for Heart Diseases, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, China
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15
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Wang TB, Mao QK, Zhang XJ, Zhou H, Guo CG, Chen YT, Zhao DB. [Postoperative complications and their influence on the prognosis factors in gastric cancer patients receiving neoadjuvant treatment]. Zhonghua Wei Chang Wai Ke Za Zhi 2021; 24:160-166. [PMID: 33508922 DOI: 10.3760/cma.j.cn.441530-20200420-00229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate postoperative complications of patients undergoing neoadjuvant therapy followed by radical gastrectomy, and to analyze their influence on the prognosis. Methods: A retrospective case-control study was used. Case inclusion criteria: (1) gastric adenocarcinoma confirmed by histopathology; (2) preoperative imaging examination showed no distant metastasis or peritoneal dissemination; (3) undergoing radical gastrectomy and D2 lymph node dissection after neoadjuvant therapy; (4) complete clinicopathological and follow-up data. According to the above criteria, clinical data of 490 gastric cancer patients who underwent radical gastrectomy in the Cancer Hospital of Chinese Academy of Medical Sciences, Peking Union Medical College from January 2008 to December 2018 were retrospectively collected, including 358 males and 132 females with mean age of (55.0±10.6) years. Neoadjuvant chemotherapy regimens included SOX (S-1+ oxaliplatin, n=151), XELOX (capecitabine+oxaliplatin, n=155), FLOT (docetaxel+oxaliplatin+fluorouracil, n=66), and DOS (docetaxel+ oxaliplatin+S-1, n=68). Preoperative concurrent chemoradiotherapy was performed in 100 patients. SOX regimen was used for 2-4 cycles as induction chemotherapy plus concurrent chemoradiotherapy (3D IMRT+S-1). Postoperative complications were defined as surgery-related complications, mainly including hemorrhage, anastomotic leakage, obstruction, anastomotic stenosis, pulmonary infection, abdominal infection, etc. Postoperative complications were graded according to Clavien-Dindo classification. Log-rank test and Cox regression model were used for univanriate multivariate prognostic analysis, respectively. Results: A total of 101 complications ocaured after operation in 87 (17.8%) patients, including 29 cases of major complications (Clavien-Dindo III to V), and 58 cases of minor complications (Clavien-Dindo I to II). Multivariate analysis showed that age > 65 years (HR=3.077, 95% CI: 1.827-5.184, P<0.001) and total gastrectomy (HR=1.735, 95% CI: 1.069-2.814, P=0.026) were independent risk factors for postoperative complications in patients with gastric cancer undergoing neoadjuvant therapy and radical gastrectomy (both P<0.05). The follow-up period was 0.7 to 131.8 months (median 21.5 months), and the 5-year overall survival rate was 47.4%. The 5-year overall survival rates of the complication group (87 cases) and the non-complication group (403 cases) were 33.2% and 50.9%, respectively (P=0.001). Multivariate analysis showed that age (HR=1.906, 95% CI: 1.248-2.913, P=0.003), ypTNM II to III stage (II stage: HR=5.853, 95% CI: 1.778-19.260, P=0.004; III stage: HR=10.800, 95% CI: 3.411-34.189, P<0.001), surgery time>3.5 h (HR=1.492, 95% CI: 1.095-2.033, P=0.011), total gastrectomy (HR=1.657, 95% CI: 1.216-2.257, P=0.001) and postoperative complications (HR=1.614, 95% CI: 1.125-2.315, P=0.009) were independent risk factors for prognosis, and postoperative adjuvant therapy (HR=0.578, 95% CI: 0.421-0.794, P=0.001) was an independent protective factor for prognosis. Conclusions: The occurrence of postoperative complications in gastric cancer patients undergoing neoadjuvant therapy is closely related to the age of the patients and the range of surgical resection. It is beneficial to improve the prognosis for these patients by paying more attention to the prevention of postoperative complications and the reinforcement of postoperative adjuvant therapy.
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Affiliation(s)
- T B Wang
- Department of Pancreatic and Gastric Surgical Oncology, National Cancer Center/ National Clinical Research for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Q K Mao
- Department of Pancreatic and Gastric Surgical Oncology, National Cancer Center/ National Clinical Research for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X J Zhang
- Department of Pancreatic and Gastric Surgical Oncology, National Cancer Center/ National Clinical Research for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - H Zhou
- Department of Pancreatic and Gastric Surgical Oncology, National Cancer Center/ National Clinical Research for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - C G Guo
- Department of Pancreatic and Gastric Surgical Oncology, National Cancer Center/ National Clinical Research for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y T Chen
- Department of Pancreatic and Gastric Surgical Oncology, National Cancer Center/ National Clinical Research for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - D B Zhao
- Department of Pancreatic and Gastric Surgical Oncology, National Cancer Center/ National Clinical Research for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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16
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Liu XD, Moffitt-Hemmer NR, Deavila JM, Li AN, Tian QT, Bravo-Iniguez A, Chen YT, Zhao L, Zhu MJ, Neibergs JS, Busboom JR, Nelson ML, Tibary A, Du M. Wagyu-Angus cross improves meat tenderness compared to Angus cattle but unaffected by mild protein restriction during late gestation. Animal 2020; 15:100144. [PMID: 33573949 DOI: 10.1016/j.animal.2020.100144] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 11/06/2020] [Accepted: 11/10/2020] [Indexed: 01/06/2023] Open
Abstract
For the spring-calving beef herds, late gestation coincides with winter and early spring, when cows are dependent on feed supplements with low quality hay, which is hard to meet their nutrient requirements. However, the effects of deficiencies of metabolizable protein intake during late gestation on offspring beef quality are unclear. Wagyu cattle have excellent marbling, and insemination with Wagyu vs Angus semen is a practical option for beef producers to improve beef quality. To test, Angus cows (621 ± 73 kg) were selected and randomly separated into two groups. Each group was inseminated with either Angus or Wagyu semen. During the last 90 days of gestation, cows in each group were further separated and received either a low protein diet (85% of the NRC metabolizable protein requirement), which was a low quality hay-based diet common in northwestern region of the U.S., or an adequate protein diet (108% NRC requirement). All progeny was managed together and harvested at a final BW of 576.5 ± 16.6 kg. Wagyu-sired offspring had higher marbling scores and quality grades than Angus (P < 0.01). Protein supplementation did not affect Slice Shear Force (SSF) in either breeds (P = 0.60). However, Wagyu-sired cattle had lower SSF than Angus-sired (P < 0.01). In addition, Wagyu-sired cattle had higher intramuscular fat (P < 0.05) and total collagen content (P < 0.05), but Angus-sired had greater mature collagen cross-links, as shown by higher contents of Pyridinoline (P < 0.01) and Ehrlich Chromogen (P < 0.01). Consistently, the mRNA expression of enzymes catalyzing collagen cross-linking was higher in Angus-sired offspring, including Plod 1 (P < 0.05), Plod 2 (P = 0.08), and P4Hα 2 (P < 0.01). In conclusion, Wagyu-sired cattle had greater tenderness and marbling score compared to Angus-sired, which was associated with lower collagen cross-links. Feeding mature grass hay-based diet with relatively low protein content during late gestation had no major effect on beef quality of subsequent cattle.
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Affiliation(s)
- X D Liu
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, USA
| | - N R Moffitt-Hemmer
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, USA
| | - J M Deavila
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, USA
| | - A N Li
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, USA
| | - Q T Tian
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, USA
| | - A Bravo-Iniguez
- School of Food Science, Washington State University, Pullman, WA 99164, USA
| | - Y T Chen
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, USA
| | - L Zhao
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, USA
| | - M J Zhu
- School of Food Science, Washington State University, Pullman, WA 99164, USA
| | - J S Neibergs
- School of Economic Sciences, Washington State University, Pullman, WA 99164, USA
| | - J R Busboom
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, USA
| | - M L Nelson
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, USA
| | - A Tibary
- Department of Veterinary Clinical Sciences, Washington State University, Pullman, WA 99164, USA
| | - M Du
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, USA.
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17
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Lu YB, Sun TJ, Chen YT, Cai ZY, Zhao JY, Miao F, Yang YN, Wang SX. Targeting the Epithelial-to-Mesenchymal Transition in Cancer Stem Cells for a Better Clinical Outcome of Glioma. Technol Cancer Res Treat 2020; 19:1533033820948053. [PMID: 33089751 PMCID: PMC7586027 DOI: 10.1177/1533033820948053] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Glioma is one of the most common malignant tumors of the central nervous system with a poor prognosis at present due to lack of effective treatment options. Its initiation, migration, and multipotency are affected by cancer stem cell’s transition. Previous studies imply that changes in the cancer stem cells can affect the malignant differentiation of the tumor. We found that the epithelial-to-mesenchymal transition (EMT)-related regulatory pathway is an important target for tumor therapy. In this review, we discuss the transition factor of EMT and 3 specific pathways that affect the EMT of cancer stem cells during tumor development. We conclude that targeting the EMT process of cancer stem cells can be a feasible approach in the treatment of glioma.
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Affiliation(s)
- Yu-Bao Lu
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China.,*Both authors contributed equally to this study and share first authorship
| | - Tian-Jiao Sun
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China.,*Both authors contributed equally to this study and share first authorship
| | - Yu-Tong Chen
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Zong-Yan Cai
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Jia-Yu Zhao
- The Second Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Feng Miao
- Zhangye People's Hospital Affiliated to Hexi University, Zhangye, Gansu, China
| | - Yong-Na Yang
- Department of Neurology, The First People's Hospital of Lanzhou City, Lanzhou, Gansu, China
| | - Shi-Xin Wang
- School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu, China
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18
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Aleixo GFP, Shachar SS, Deal AM, Nyrop KA, Muss HB, Chen YT, Yu H, Williams GR. The association of body composition parameters and adverse events in women receiving chemotherapy for early breast cancer. Breast Cancer Res Treat 2020; 182:631-642. [PMID: 32519169 DOI: 10.1007/s10549-020-05731-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 06/05/2020] [Indexed: 12/27/2022]
Abstract
BACKGROUND Body composition metrics as predictors of adverse events are a growing area of interest in oncology research. One barrier to the use of these metrics in clinical practice is the lack of standardized cut points for identifying patients with at-risk body composition profiles. We examined the association of chemotherapy adverse events with several body composition measures, using alternative cut points from published studies. METHODS This is a retrospective study of women diagnosed with early breast cancer (EBC). Axial computerized tomography (CT) images from lumbar L3 segments were analyzed for the following body composition measures: myosteatosis (low Skeletal Muscle Density/SMD), sarcopenia (low Skeletal Muscle Index/SMI), and high Visceral Adipose Tissue (VAT). Adverse events during chemotherapy were dose reduction, early treatment discontinuation, and hospitalization. Log-binomial modeling was used to evaluate associations between body composition measures at different cut points with adverse events, adjusting for age, race, Body Mass Index/BMI, and comorbidities. Relative risks were reported as the measure of association. RESULTS In a sample of 338 women, mean age was 51, 14% were age 65 or older, 32% were non-white, 40% had obesity (/BMI ≥ 30 kg/m2), and mean number of comorbidities was 1.56. In multivariable analysis (MV), all three SMD cut points for myosteatosis had significant associations with total number of adverse events, as well as different cut points having significant associations with either dose reduction, early treatment discontinuation or hospitalization. SMI and VAT were not significant in the MV analysis; however, in some models, age and total comorbidities were significant for adverse events. CONCLUSIONS Among CT-derived measures of body composition, myosteatosis determined at any of three SMD cut points was associated with total and individual adverse events during chemotherapy for early breast cancer.
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Affiliation(s)
- G F P Aleixo
- Division of Hematology-Oncology, University of North Carolina at Chapel Hill, 170 Manning Dr., Chapel Hill, NC, USA. .,Universidade Do Oeste Paulista (UNOESTE), Presidente Prudente, SP, Brazil.
| | - S S Shachar
- Ruth and Bruce Rappaport Faculty of Medicine at Technion, Haifa, Israel
| | - A M Deal
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - K A Nyrop
- Division of Hematology-Oncology, University of North Carolina at Chapel Hill, 170 Manning Dr., Chapel Hill, NC, USA.,Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - H B Muss
- Division of Hematology-Oncology, University of North Carolina at Chapel Hill, 170 Manning Dr., Chapel Hill, NC, USA.,Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Y T Chen
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - H Yu
- Division of Radiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - G R Williams
- Division of Hematology/Oncology, The University of Alabama at Birmingham, Birmingham, AL, USA
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Wu PY, Chen YT, Wong TC, Chen HH, Chen TW, Chen TH, Hsu YH, Peng SJ, Kuo KL, Hung SC, Yang SH. Energy Requirement of Patients Undergoing Hemodialysis: A Cross-Sectional Study in Multiple Centers. Biochem Res Int 2020; 2020:2054265. [PMID: 32274214 PMCID: PMC7115188 DOI: 10.1155/2020/2054265] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 02/27/2020] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Energy requirements must be estimated before nutritional care can be provided for patients undergoing hemodialysis (HD). However, the recommended caloric intake for patients has not been conclusively determined because of insufficiently large sample sizes. METHOD This cross-sectional observational study recruited patients undergoing long-term HD from multiple centers as well as people in the general population without chronic kidney disease. People from both groups were matched by sex and age. Resting energy expenditure (REE) was estimated using an indirect calorimeter. Two commonly used equations for estimating REE and daily energy requirement recommended by the National Kidney Foundation's Kidney Disease Outcomes Quality Initiative (K/DOQI) were chosen. RESULTS This study had 154 HD patients and 33 matched HD-control group pairs. Age (r = -0.36, p < 0.01) and dry body weight after dialysis (r = -0.36, p < 0.01) and dry body weight after dialysis (. CONCLUSIONS Age and dry body weight are the main factors affecting the energy expenditure of HD patients. Furthermore, predicting the energy expenditure of HD patients by measuring the energy expenditure of their sedentary counterparts in the general population with the same sex, age range, and weight may yield better results than using traditional equations for predicting TEE. In East Asian populations, the TEE values were 32 and 30 kcal/kg dry weight for those aged <65 and ≥65 years, respectively. Future prospective cohort studies with larger sample sizes are needed.
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Affiliation(s)
- Pei-Yu Wu
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan
| | - Yu-Tong Chen
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan
| | - Te-Chih Wong
- Department of Nutrition and Health Sciences, Chinese Culture University, Taipei, Taiwan
| | - Hsi-Hsien Chen
- Department of Nephrology, Taipei Medical University Hospital, Taipei, Taiwan
| | - Tzen-Wen Chen
- School of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Tso-Hsiao Chen
- Department of Nephrology, Wan Fang Medical Center, Taipei, Taiwan
| | - Yung-Ho Hsu
- Division of Nephrology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Sheng-Jeng Peng
- Division of Nephrology, Cathay General Hospital, Taipei, Taiwan
| | - Ko-Lin Kuo
- Division of Nephrology, Taipei Tzu-Chi Hospital, New Taipei City, Taiwan
| | - Szu-Chun Hung
- Division of Nephrology, Taipei Tzu-Chi Hospital, New Taipei City, Taiwan
| | - Shwu-Huey Yang
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan
- Nutrition Research Center, Taipei Medical University Hospital, Taipei, Taiwan
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20
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Chen PL, Hong JB, Shen LJ, Chen YT, Wang SJ, Liao YH. The efficacy and safety of topical rapamycin-calcitriol for facial angiofibromas in patients with tuberous sclerosis complex: a prospective, double-blind, randomized clinical trial. Br J Dermatol 2020; 183:655-663. [PMID: 32064596 DOI: 10.1111/bjd.18949] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2020] [Indexed: 11/26/2022]
Abstract
BACKGROUND The efficacy of topical rapamycin is well documented for tuberous sclerosis complex (TSC)-related facial angiofibromas (FAs). Calcitriol has been shown to lessen skin fibrosis and may be therapeutically beneficial to FAs. OBJECTIVES To evaluate whether topical rapamycin-calcitriol combination is an effective and safe treatment for TSC-related FAs. METHODS Fifty-two patients with TSC with FAs were enrolled in this prospective study including three 12-week periods. In period 1, either topical rapamycin 0·1% or calcitriol 0·0003% single-agent therapy vs. their combination was applied in a double-blind, left-right-randomized, split-face comparison. The primary outcome was the reduction of modified Facial Angiofibroma Severity Index (mFASI) at week 12. In period 2, the patients were reassigned to use on both cheeks the ointment that resulted in the better primary outcome in period 1. The treatment was discontinued in period 3 (week 25-36) and a follow-up mFASI was scored to evaluate the degree of recurrence. RESULTS The mean changes in mFASI at week 12 compared with baseline were -0·92, -0·44 and -1·09 for rapamycin (P ≤ 0·001), calcitriol (P = 0·039) and rapamycin-calcitriol combination (P ≤ 0·001), respectively. Although rapamycin-calcitriol combination and rapamycin had similar statistically significant decreases of mFASI at week 12, rapamycin-calcitriol combination resulted in faster improvement in erythema, greater reduction of papule elevation and longer durability after discontinuing treatment than rapamycin alone. The treatments were well tolerated. CONCLUSIONS This randomized clinical trial demonstrates that topical rapamycin-calcitriol combination therapy is an effective and safe regimen for TSC-related FAs. What is already known about this topic? Facial angiofibromas (FAs) cause substantial psychological distress in individuals with tuberous sclerosis complex (TSC), but invasive procedural treatments are not applicable to all patients. Topical rapamycin has been demonstrated as an effective and safe treatment regimen for TSC-related FAs. What does this study add? Compared with baseline (day 0), both topical rapamycin 0·1% and rapamycin 0·1%-calcitriol 0·0003% combination ointment achieved statistically significant reductions in modified Facial Angiofibroma Severity Index at week 12. Compared with rapamycin alone, extended use of the rapamycin-calcitriol combination regimen until week 24 showed more effectiveness in decreasing papule elevation and could maintain a longer therapeutic effect after treatment discontinuation. Linked Comment: Lee. Br J Dermatol 2020; 183:604-606.
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Affiliation(s)
- P L Chen
- Graduate Institute of Medical Genomics and Proteomics, Taipei, Taiwan.,Department of Medical Genetics, National Taiwan University Hospital, Taipei, Taiwan
| | - J B Hong
- Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - L J Shen
- Graduate Institute of Clinical Pharmacy/School of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Y T Chen
- Graduate Institute of Medical Genomics and Proteomics, Taipei, Taiwan
| | - S J Wang
- Graduate Institute of Medical Genomics and Proteomics, Taipei, Taiwan
| | - Y H Liao
- Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
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21
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Chen YT, Shen JY, Chen DP, Wu CF, Guo R, Zhang PP, Lv JW, Li WF, Wang ZX, Chen YP. Identification of cross-talk between m 6A and 5mC regulators associated with onco-immunogenic features and prognosis across 33 cancer types. J Hematol Oncol 2020; 13:22. [PMID: 32188475 PMCID: PMC7081591 DOI: 10.1186/s13045-020-00854-w] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 03/03/2020] [Indexed: 12/26/2022] Open
Abstract
Methylation of RNA and DNA, notably in the forms of N6-methyladenosine (m6A) and 5-methylcytosine (5mC) respectively, plays crucial roles in diverse biological processes. Currently, there is a lack of knowledge regarding the cross-talk between m6A and 5mC regulators. Thus, we systematically performed a pan-cancer genomic analysis by depicting the molecular correlations between m6A and 5mC regulators across ~ 11,000 subjects representing 33 cancer types. For the first time, we identified cross-talk between m6A and 5mC methylation at the multiomic level. Then, we further established m6A/5mC epigenetic module eigengenes by combining hub m6A/5mC regulators and informed a comprehensive epigenetic state. The model reflected status of the tumor-immune-stromal microenvironment and was able to predict patient survival in the majority of cancer types. Our results lay a solid foundation for epigenetic regulation in human cancer and pave a new road for related therapeutic targets.
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Affiliation(s)
- Yu-Tong Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, People's Republic of China.,Department of Medical Oncology, The Third Affiliated Hospital of Sun Yat-sen University, Sun Yat-Sen University, Guangzhou, 510632, People's Republic of China
| | - Jia-Yi Shen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, People's Republic of China.,School of Medicine, Jinan University, Guangzhou, 510632, People's Republic of China
| | - Dong-Ping Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, People's Republic of China.,MOE Key Laboratory of Gene Function and Regulation, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, People's Republic of China
| | - Chen-Fei Wu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, People's Republic of China
| | - Rui Guo
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, People's Republic of China
| | - Pan-Pan Zhang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, People's Republic of China
| | - Jia-Wei Lv
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, People's Republic of China
| | - Wen-Fei Li
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, People's Republic of China.
| | - Zi-Xian Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, People's Republic of China.
| | - Yu-Pei Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, Guangzhou, 510060, People's Republic of China.
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22
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Chen YT, Seeruttun SR, Wu XY, Wang ZX. Maximum Somatic Allele Frequency in Combination With Blood-Based Tumor Mutational Burden to Predict the Efficacy of Atezolizumab in Advanced Non-small Cell Lung Cancer: A Pooled Analysis of the Randomized POPLAR and OAK Studies. Front Oncol 2019; 9:1432. [PMID: 31921683 PMCID: PMC6929100 DOI: 10.3389/fonc.2019.01432] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 12/02/2019] [Indexed: 12/26/2022] Open
Abstract
Background: Blood-based tumor mutational burden (bTMB) was recently found to be suboptimal in predicting overall survival (OS) benefits of atezolizumab over docetaxel among patients with advanced non-small cell lung cancer (NSCLC). The maximum somatic allele frequency (MSAF) is an indicator of the proportion of tumor-derived plasma DNA, which could affect the concordance between bTMB and tissue-based TMB. Therefore, we aimed to evaluate the utility of MSAF, alone or in combination with bTMB, to identify NSCLC patients with or without survival benefit from atezolizumab over docetaxel. Methods: We analyzed the individual patient-level data from the randomized POPLAR and OAK studies. The bTMB and MSAF were derived from the pre-treatment blood-based genomic data. Results: In both the bTMB-high (i.e., bTMB ≥ 13) and bTMB-low subgroups, atezolizumab significantly improved OS compared with docetaxel (hazard ratio [HR] = 0.43 [95% CI, 0.29-0.65], P < 0.001 and HR = 0.73 [95% CI, 0.61-0.87], P < 0.001, respectively). Among patients with a low MSAF (i.e., MSAF < 10.3%), OS significantly favored atezolizumab (HR = 0.59 [95% CI, 0.48-0.72], P < 0.001), whereas OS with atezolizumab was similar to that with docetaxel in the MSAF-high subgroup (HR = 0.91 [95% CI, 0.68-1.20], P = 0.500; interaction test P = 0.017). Among patients from the bTMB-low and MSAF-high subgroup, OS was numerically worse with atezolizumab than with docetaxel (HR = 1.06 [95% CI, 0.78-1.45], P = 0.710); in contrast, OS was significantly improved with atezolizumab compared with docetaxel in those with either a high bTMB or low MSAF (HR = 0.57 [95% CI, 0.47-0.69], P < 0.001; interaction test P < 0.001). Consistent findings were obtained for progression-free survival data. Conclusions: MSAF alone or in combination with bTMB can effectively distinguish patients with or without survival benefit from atezolizumab compared with docetaxel. MSAF and the combined bTMB-MSAF classification may become practical predictive markers for atezolizumab in advanced NSCLC.
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Affiliation(s)
- Yu-Tong Chen
- Department of Medical Oncology, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Sharvesh Raj Seeruttun
- Department of Surgical Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Xiang-Yuan Wu
- Department of Medical Oncology, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zi-Xian Wang
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
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Zhou H, Guo CG, Chen YT, Dou LZ, Zhang YM, Wang GQ, Zhao DB. [The therapeutic strategy after noncurative endoscopic submucosal dissection for early gastric cancer]. Zhonghua Zhong Liu Za Zhi 2019; 41:865-869. [PMID: 31770856 DOI: 10.3760/cma.j.issn.0253-3766.2019.11.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the therapeutic strategy in patients with early gastric cancer after noncurative endoscopic submucosal dissection (ESD). Methods: A total of 107 cases with early gastric cancer receiving noncurative endoscopic submucosal dissection were collected and the patients were classified into an additional gastrectomy group (n=41) and a simple follow-up group (n=66) according to the therapeutic method used after noncurative ESD. The clinicopathological information, short- and long-term clinical outcomes between the two groups were analyzed and compared. Results: The mean age of the patients in the gastrectomy group and follow-up group was(59.2±8.7)years old and(64.7±8.8)years old, respectively. The depth of submucosal invasion was (1445.83±803.12) and (794.71±815.79) μm, respectively. The difference between the two groups was statistically significant (P=0.020 for age and P=0.010 for depth of submucosal invasion). Compared with follow-up group, the patients with undifferentiated histologic type, deep invasion of submucosa (SM2), diffuse type, lymphovascular invasion and neural invasion were more common in the gastrectomy group (P<0.05). The R0 resection rate of ESD in the gastrectomy group was significantly lower than the follow-up group(26.8% vs 65.2%, P<0.001). The positive residual tumor rate and LNM rate of additional gastrectomy group were 31.7%(13/41)and 9.76%(4/41)according to the pathological results after gastrectomy. The gastrectomy group had 2 cases of local recurrence (2/41, 4.9%), while 5(5/66, 7.6%)in the follow-up group(4.9% vs 7.6%, P=0.883). There was no significant difference in overall survival (OS) and disease-free survival (DFS) between the two study groups (P=0.066 and 0.938, respectively). Conclusions: Assessment of LNM risk should be performed in patients with noncurative endoscopic resection. For patients with low risk of LNM who are intolerance of additional gastrectomy due to old age and comorbidities, close follow-up with endoscopy can be considered as an alternative.
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Affiliation(s)
- H Zhou
- Department of Pancreatic and Gastric Surgical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - C G Guo
- Department of Pancreatic and Gastric Surgical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y T Chen
- Department of Pancreatic and Gastric Surgical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L Z Dou
- Department of Endoscopy, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y M Zhang
- Department of Endoscopy, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - G Q Wang
- Department of Endoscopy, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - D B Zhao
- Department of Pancreatic and Gastric Surgical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Luo Q, Pin T, Dai L, Chen G, Chen Y, Tian F, Zhang M. The Role of S100B Protein at 24 Hours of Postnatal Age as Early Indicator of Brain Damage and Prognostic Parameter of Perinatal Asphyxia. Glob Pediatr Health 2019; 6:2333794X19833729. [PMID: 31044150 PMCID: PMC6446251 DOI: 10.1177/2333794x19833729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 12/17/2018] [Accepted: 12/18/2018] [Indexed: 12/02/2022] Open
Abstract
Introduction. S100B protein is a cytosolic calcium-binding protein with a molecular weight of 21 kDa, which is present in various cells and concentrated mainly in the glial cells, which play a vital role in the maintenance of cellular homeostasis in the central nervous system. It is possible that increased S100B protein level might be considered as sensitive and specific indicator to predict early brain damage. Aim. To investigate the prognostic value of serum S100B protein in neonates with perinatal asphyxia (PA) at 24 hours of postnatal age. Methods. A systematic review was performed. Inclusion criteria were studies including data of neonates with PA, monitored with serum S100B, and with neurodevelopmental follow-up of at least 2 weeks. The period of bibliographic search was until January 2017. The consulted databases were MEDLINE, PsycINFO, and Embase. A combination of the following subject headings and keywords was adapted for each electronic database: “perinatal asphyxia,” “hypoxic ischemic encephalopathy,” “hypoxia-ischemia, brain,” and “S100B.” Meta-Disc1.4 software was used. Results. From the 1620 articles initially identified, 6 were finally included and reviewed. The overall diagnostic sensitivity of serum S100B was 0.80 (95% confidence interval [CI] = 0.68-0.88) and the specificity was 0.79 (95% CI = 0.70-0.87). But there was lower predictability value, that is, the positive likelihood ratio was only 3.26 (95% CI 1.74-6.12) and the negative likelihood ratio was 0.32 (95% CI = 0.20-0.5). The diagnostic odds ratio was 12.40 (95% CI = 4.66-33.0). Conclusion. Increased serum S100B level at 24 hours of postnatal life can demonstrate brain damage, but it should not be the only one used to predict PA outcome.
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Affiliation(s)
- Qiu Luo
- Kunming Medical University Second Hospital, Kunming, China
| | - Tamis Pin
- The Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - LiFen Dai
- Kunming Medical University Second Hospital, Kunming, China
| | - GuiXian Chen
- Kunming Medical University Second Hospital, Kunming, China
| | - YuTong Chen
- Kunming Medical University Second Hospital, Kunming, China
| | - FuLu Tian
- Kunming Medical University Second Hospital, Kunming, China
| | - Man Zhang
- Kunming Medical University Second Hospital, Kunming, China
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25
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Ma FH, Li Y, Li WK, Kang WZ, Chen YT, Xie YB, Yin ZH, Zhang Y, Tian YT. [Comparison of short-term outcomes of laparoscopy-assisted and totally laparoscopic distal gastrectomy for gastric cancer]. Zhonghua Zhong Liu Za Zhi 2019; 41:229-234. [PMID: 30917461 DOI: 10.3760/cma.j.issn.0253-3766.2019.03.014] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To assess the safety, feasibility and short-term outcome of totally laparoscopic distal gastrectomy(TLDG). Methods: Seventy-five patients who underwent laparoscopic distal gastrectomy in Cancer Hospital of Chinese Academy of Medical Science between August 2015 and April 2018 were enrolled in this study. A total of 46 laparoscopy-assisted distal gastrectomy (LADG) cases and 29 TLDG cases were included. The Short-term outcomes and safeties of the two groups were compared. Results: The operation time of TLDG group was significantly longer than that of LADG group (207±41 vs. 156±34 min, P<0.001), while the length of wound was shorter in the TLDG group (3.6±0.6 vs. 5.8±0.8 cm, P<0.001). The time to first flatus in TLDG group was (3.3±0.6) days, significantly shorter than (3.7±0.8) days in LADG group (P=0.034). There were no significant differences between the two groups in the estimated blood loss, intraoperative blood transfusion, extraction of gastric tube, drainage tube removal, interval of the first time to eat semi-liquid food, postoperative hospital stays, surgical complications, number of retrieved lymph nodes, proximal and distal resection margin lengths (all P>0.05). The white blood cell count at postoperative day 1 in the TLDG group was (10.96±1.96) ×10(9)/L, significantly lower than (12.49±3.46)×10(9)/L of the LADG group (P=0.017). While the CRP level at postoperative day 1 in the TLDG group were lower than that of LADG group, no statistical difference was observed (P=0.072). Conclusions: Our study shows that TLDG is safe and feasible. TLDG has better cosmesis, less blood loss, and faster recovery compared to LADG.
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Affiliation(s)
- F H Ma
- Department of Pancreatic and Gastric Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y Li
- Department of Pancreatic and Gastric Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - W K Li
- Department of Pancreatic and Gastric Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - W Z Kang
- Department of Pancreatic and Gastric Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y T Chen
- Department of Pancreatic and Gastric Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y B Xie
- Department of Pancreatic and Gastric Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Z H Yin
- Department of General Surgery, the Seventh People's Hospital of Baoding, Baoding 072150, China
| | - Y Zhang
- Department of General Surgery, Zhengzhou People's Hospital, Zhengzhou 450003, China
| | - Y T Tian
- Department of Pancreatic and Gastric Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Wang WD, Hou SN, Chen D, Jiang XY, Ni JY, Chen YT, Sun HL, Luo JH, Xu LF. [Analysis of curative and prognostic effects of combined therapy of transarterial chemoembolization and sorafenib in hepatocellular carcinoma]. Zhonghua Gan Zang Bing Za Zhi 2018; 26:690-693. [PMID: 30481868 DOI: 10.3760/cma.j.issn.1007-3418.2018.09.011] [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] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- W D Wang
- Department of Interventional Radiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
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Li HJ, Chen YT, Yuan SQ. Proposal of a modified American Joint Committee on Cancer staging scheme for resectable pancreatic ductal adenocarcinoma with a lymph node ratio-based N classification: A retrospective cohort study. Medicine (Baltimore) 2018; 97:e12094. [PMID: 30142869 PMCID: PMC6112900 DOI: 10.1097/md.0000000000012094] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The recently launched 8th edition of the American Joint Committee on Cancer (AJCC) staging scheme for pancreatic ductal adenocarcinoma (PDAC) did not account for the impact of the total examined lymph node count on prognostic accuracy. In this population-based cohort study, we proposed a modified AJCC staging scheme by incorporating a lymph node ratio (LNR)-based N classification for patients with resectable PDAC.We analyzed 8615 patients with resectable PDAC from the Surveillance, Epidemiology, and End Results database between 2004 and 2013. The optimal cut-off points for LNR were identified by recursive partitioning, and an LNR-based N classification was designed accordingly.The LNR-based N classification could further stratify patients with the 8th AJCC N1 and N2 disease into subgroups with significantly different overall survival (P < .001 for both). By replacing the 8th AJCC N classification with the corresponding LNR-based N classification, we further proposed a modified AJCC staging scheme. The modified AJCC staging outperformed the 8th AJCC staging in terms of the discriminatory capacity measured by the concordance index and Akaike information criterion, and the prognostic homogeneity assessed by using the likelihood ratio chi-squared test and stratified survival analysis.Replacing the 8th AJCC N classification with the LNR-based N classification can improve the prognostic performance of the 8th AJCC staging scheme for PDAC.
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Affiliation(s)
- Huan-Jun Li
- Department of Medical Oncology, Dongguan General Hospital, Dongguan
| | - Yu-Tong Chen
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
| | - Shu-Qiang Yuan
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Department of Gastric and Pancreatic Surgery, Sun Yat-Sen University Cancer Center, Guangzhou, China
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Lin SH, Luo HL, Chen YT, Cheng YT. Using Hematuria as Detection of Post-kidney Transplantation Upper Urinary Tract Urothelial Carcinoma Is Associated With Delayed Diagnosis of Cancer Occurrence. Transplant Proc 2018; 49:1061-1063. [PMID: 28583527 DOI: 10.1016/j.transproceed.2017.03.070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVES Kidney transplantation (KT) is an important renal replacement therapy for end-stage renal disease (ESRD). The incidence of upper urinary tract urothelial carcinoma (UTUC) is relatively higher in Taiwan. According to our institutional database, early onset of post-KT UTUC is not uncommon. Early detection of post-KT UTUC is an important issue to improve oncologic outcome. Because painless hematuria is a common symptom for UTUC, this study analyzes whether using hematuria as post-KT UTUC screening delayed cancer diagnosis or not. METHODS From 2005 to 2012, 128 ESRD patients were found to have UTUCs. There were 28 patients who underwent KT and were regularly followed up at our institution. All the patients underwent standard nephroureterectomy. RESULTS In ESRD patients with UTUC, the post-KT group revealed significantly less gross hematuria and microscopic hematuria at presentation compared with the non-KT group (43% versus 76%, P = .001 and 64% versus 86%, P = .011). For those patients with gross hematuria, non-organ-confined UTUC occurred more in the post-KT group compared with the non-KT group (42% versus 12%, P = .009). For those patients with microscopic hematuria, non-organ-confined UTUC occurred more in the post-KT group compared with the non-KT group with borderline significance (33% versus 16%, P = .085). CONCLUSIONS According to our observation, using gross or microscopic hematuria as detection of post-KT UTUC is associated with delayed diagnosis of cancer occurrence. Closer upper urinary tract image study such as sonography may help earlier cancer screening.
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Affiliation(s)
- S H Lin
- Department of Urology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - H L Luo
- Department of Urology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Y T Chen
- Department of Urology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Y T Cheng
- Department of Urology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.
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Hou CJ, Huang MW, Zhou JY, Hsu PC, Zeng JH, Chen YT. The application of individual virtual nostalgic game design to the evaluation of cognitive function. Annu Int Conf IEEE Eng Med Biol Soc 2017; 2017:2586-2589. [PMID: 29060428 DOI: 10.1109/embc.2017.8037386] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The aim of this study was to develop a task set based on personalized material for nostalgic experience, which could detect cognitive ability via a virtual experience system combined with Kinect somatosensory interactive operation applications without the user wearing any accessory input device. Fifty-nine subjects participated in the experiment. The receiver operating characteristic curve of the game system was statistically analyzed for determining the best cutoff-point in the cognitive function assessment. Correlation analysis and regression analysis were used to explore the correlations between the results and the clinical cognitive assessment scales. According to the MoCA scores, the results showed that the accuracy of the system was 86.4% in evaluating mild cognitive impairment. The system seems feasible and was strongly correlated with clinical cognitive assessment scales. We anticipate that daily use of our system could keep track of changes of cognitive function of the elderly in home life.
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Zhang JW, Che X, Lan ZM, Chen YT, Huang XH, Jiang QL, Wang CF. [Surgical treatment and prognosis of pancreatic neuroendocrine carcinoma]. Zhonghua Zhong Liu Za Zhi 2017; 38:925-928. [PMID: 27998470 DOI: 10.3760/cma.j.issn.0253-3766.2016.12.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: Pancreatic neuroendocrine carcinoma (pNEC) is a highly malignant tumor.This study aimed to evaluate the role of surgery and the prognosis for patients with pancreatic neuroendocrine carcinoma (pNEC). Methods: We collected and reviewed all clinical data of patients who underwent radical surgery for pNEC from Jan 2000 through Jan 2016 in our hospital. Cox-regression analysis wasused to evaluate the factors potentially influencing survival. Results: Twenty patients including 11 males and 9 females (median age, 62.5 years) were included in this study. All patients underwent radical surgery and 17 cases received postoperative platinum-based chemotherapy.The median follow-up time was 41 months (range, 1 to 127 months). The 1-, 3-, and 5-year survival rates of the patients were 66.7%, 51.5% and 28.1%, with a median survival time of 75.3 months.The multivariate analysis indicated that tumor size and Ki-67 index were of prognostic significance. Conclusions: Pancreatic neuroendocrine carcinomas are rare but increasing in incidence. Patients with localized nonmetastatic primary tumors seem to benefit from surgery. Early diagnosis and multimodality therapy are key points of an improved survival.
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Affiliation(s)
- J W Zhang
- Department of Abdominal Surgery, National Cancer Center, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X Che
- Department of Abdominal Surgery, National Cancer Center, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Z M Lan
- Department of Abdominal Surgery, National Cancer Center, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y T Chen
- Department of Abdominal Surgery, National Cancer Center, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X H Huang
- Department of Abdominal Surgery, National Cancer Center, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Q L Jiang
- Department of Abdominal Surgery, National Cancer Center, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - C F Wang
- Department of Abdominal Surgery, National Cancer Center, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Abstract
MAX-phase Cr2AlC containing thin films were synthesized by magnetron sputtering in an industrial system. Nanometre-scale 3D defects are observed near the boundary between regions of Cr2AlC and of the disordered solid solution (CrAl)xCy. Shrinkage of the Cr-Cr interplanar distance and elongation of the Cr-Al distance in the vicinity of the defects are detected using transmission electron microscopy. The here observed deformation surrounding the defects was described using density functional theory by comparing the DOS of bulk Cr2AlC with the DOS of a strained and unstrained Cr2AlC(0001) surface. From the partial density of states analysis, it can be learned that Cr-C bonds are stronger than Cr-Al bonds in bulk Cr2AlC. Upon Cr2AlC(0001) surface formation, both bonds are weakened. While the Cr-C bonds recover their bulk strength as Cr2AlC(0001) is strained, the Cr-Al bonds experience only a partial recovery, still being weaker than their bulk counterparts. Hence, the strain induced bond strengthening in Cr2AlC(0001) is larger for Cr d – C p bonds than for Cr d – Al p bonds. The here observed changes in bonding due to the formation of a strained surface are consistent with the experimentally observed elongation of the Cr-Al distance in the vicinity of nm-scale 3D defects in Cr2AlC thin films.
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Affiliation(s)
- Y T Chen
- Materials Chemistry, RWTH Aachen University, Kopernikusstr. 10, 52074, Aachen, Germany.
| | - D Music
- Materials Chemistry, RWTH Aachen University, Kopernikusstr. 10, 52074, Aachen, Germany
| | - L Shang
- Materials Chemistry, RWTH Aachen University, Kopernikusstr. 10, 52074, Aachen, Germany
| | - J Mayer
- Central Facility for Electron Microscopy, RWTH Aachen University, 52056, Aachen, Germany.,Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Juelich, 52425, Juelich, Germany
| | - J M Schneider
- Materials Chemistry, RWTH Aachen University, Kopernikusstr. 10, 52074, Aachen, Germany
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Chen YT, Wei HG, Li SG. [Surgical treatment and curative effect observation of vascular malformations in the adult floor of the mouth and pharyngeal space]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 30:1953-1956. [PMID: 29798273 DOI: 10.13201/j.issn.1001-1781.2016.24.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Indexed: 11/12/2022]
Abstract
Objective:To investigate the effect of surgical treatment of vascular malformation in the adult floor of the mouth and pharyngeal space. Method:Collect 12 cases of vascular malformation from the floor of the mouth and pharyngeal space.All of them were checked out of the different degrees of tongue elevation and dysphagia and to carry out the excision of vascular malformation with lingual nerve and hypoglossal nerve preservation. Result:The lesion reduction degree of 10 cases of patients were Ⅳ class(excellent), theoher 2 cases were Ⅲ class(good). Hematoma at the bottom of the mouth after operation were not happened. Follow-up 0.5-3 years,tongue deviation appeared in 1 cases of postoperation. After 6 months of follow-up, the tongue is in the middle when it put out, functional recovery,no tongue muscle atrophy,no tongue movement disorder in the rest of the patients,no obvious recurrence of vascular malformations, no swallowing disorder in all patients. Conclusion:It would be obtained ideal therapeutic effect with surgical treatment in the adult vascular malformations of the floor of the mouth and pharyngeal space.It would be the key to the success of surgery with protecting the lingual nerve and hypoglossal nerve and controlling bleeding.
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Affiliation(s)
- Y T Chen
- Oral and Maxillofacial Plastic Surgery,Foshan Hospital Affiliated to Southern Medical University,Foshan
| | - H G Wei
- Oral and Maxillofacial Plastic Surgery,Foshan Hospital Affiliated to Southern Medical University,Foshan
| | - S G Li
- Oral and Maxillofacial Plastic Surgery,Foshan Hospital Affiliated to Southern Medical University,Foshan
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Wong TC, Su HY, Chen YT, Wu PY, Chen HH, Chen TH, Hsu YH, Yang SH. Ratio of C-Reactive Protein to Albumin Predicts Muscle Mass in Adult Patients Undergoing Hemodialysis. PLoS One 2016; 11:e0165403. [PMID: 27768746 PMCID: PMC5074567 DOI: 10.1371/journal.pone.0165403] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 10/11/2016] [Indexed: 12/27/2022] Open
Abstract
Recent studies have indicated that the ratio of C-reactive protein to albumin (CRP–Alb ratio) is associated with clinical outcomes in patients with disease. We examined the predictive value of this ratio in patients undergoing hemodialysis (HD). In this cross-sectional study, 91 eligible adult HD patients were analyzed, and the correlation between the CRP–Alb ratio and skeletal muscle mass normalized for body weight (SMM/wt; estimated using a bioelectrical impedance analyzer) was investigated. The mean age of the study participants was 54.9 ± 6.6 years (ranging from 27 to 64 years); 43 (47.2%) were men. The mean values for the SMM/wt were 39.1% ± 5.4%. The CRP–Alb ratio was found to be negatively correlated with SMM/wt (r = −0.33, P = 0.002) and creatinine (r = −0.20, P = 0.056). All the univariate significant and nonsignificant relevant covariates were selected for multivariable stepwise regression analysis. We determined that the homeostasis model assessment-estimated insulin resistance and CRP–Alb ratio were independent risk determinants for SMM/wt (βHOMA-IR = −0.18 and βCRP–Alb ratio = −3.84, adjusted R2 = 0.32). This study indicated that the CRP–Alb ratio may help clinicians in predicting muscle mass in adult patients undergoing HD.
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Affiliation(s)
- Te-Chih Wong
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan, Republic of China
| | - Hsiu-Yueh Su
- Department of Dietetics, Taipei Medical University Hospital, Taipei, Taiwan, Republic of China
| | - Yu-Tong Chen
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan, Republic of China
| | - Pei-Yu Wu
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan, Republic of China
| | - Hsi-Hsien Chen
- Division of Nephrology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan, Republic of China
| | - Tso-Hsiao Chen
- Division of Nephrology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan, Republic of China
| | - Yung-Ho Hsu
- Division of Nephrology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan, Republic of China
| | - Shwu-Huey Yang
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan, Republic of China
- Nutrition Research Center, Taipei Medical University Hospital, Taipei, Taiwan, Republic of China
- * E-mail:
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Chen YT, Huang ZP, Zhou ZW, He MM. Equipping the American Joint Committee on Cancer staging for resectable pancreatic ductal adenocarcinoma with tumor grade: a recursive partitioning analysis. Med Oncol 2016; 33:122. [PMID: 27730526 PMCID: PMC5059399 DOI: 10.1007/s12032-016-0839-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 10/05/2016] [Indexed: 12/19/2022]
Abstract
Previous studies of pancreatic ductal adenocarcinoma (PDAC) have demonstrated that the addition of tumor grade to the 7th American Joint Committee on Cancer (AJCC) staging can provide improved prognostication and that the recently proposed 8th edition AJCC staging exhibited superior reproducibility to the 7th edition in resectable PDAC. Thus, we aimed to combine tumor grade and 8th AJCC stage to develop a refined staging scheme for resectable PDAC. We analyzed 7719 patients with resectable PDAC from the 2004–2012 Surveillance, Epidemiology, and End Results database. We performed recursive partitioning analysis (RPA) to objectively incorporate tumor grade with 8th AJCC stage into a novel staging system. The performance of the proposed RPA staging was assessed against the 8th AJCC staging in terms of discriminatory ability and prognostic homogeneity. For each 8th AJCC stage, survival was significantly worse for high-grade versus low-grade tumors. RPA divided resectable PDAC into five stages: RPA-IA (low-grade T1N0), RPA-IB (high-grade T1N0 or low-grade T2N0), RPA-IIA (high-grade T2N0 or low-grade T3N0/T1–T3N1), RPA-IIB (high-grade T3N0/T1–T3N1 or low-grade T1–T3N2), and RPA-III (high-grade T1–T3N2; median survival: 42, 26, 19, 15, and 12 months, respectively; P < 0.001). The RPA staging outperformed the 8th AJCC classifications in terms of discrimination (concordance index, 0.585 versus 0.565; P < 0.001) and prognostic homogeneity. Tumor grade can provide additional prognostic information to the 8th AJCC staging. The proposed RPA staging is a superior risk-stratified tool to the 8th AJCC staging and is not substantially more complex.
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Affiliation(s)
- Yu-Tong Chen
- Department of Medical Oncology, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, 651 Dong Feng Road East, Guangzhou, 510060, China
| | - Ze-Ping Huang
- Department of General Surgery, Lan Zhou University Second Hospital, Lanzhou, 730030, China
| | - Zhi-Wei Zhou
- Department of Gastric and Pancreatic Surgery, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, 510060, China
| | - Ming-Ming He
- Department of Medical Oncology, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, 651 Dong Feng Road East, Guangzhou, 510060, China.
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Lv XS, Qiu Y, Wang ZY, Jiang GM, Chen YT, Xu XH, Hurt RH. Aerosol synthesis of phase-controlled iron-graphene nanohybrids through FeOOH nanorod intermediates. Environ Sci Nano 2016; 3:1215-1221. [PMID: 28133538 PMCID: PMC5260819 DOI: 10.1039/c6en00178e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Iron-based nanoparticles form the basis for a host of sustainable alternative technologies based on this earth-abundant, low-toxicity element that can adopt a variety of oxidation states, crystal phases, and functions. Control of size, shape, and phase stability is a challenge for many nano-iron-based technologies, especially those involving Fe0 that is susceptible to oxidation under ambient conditions. This article presents a continuous method for hybridizing Fe-based nanoparticles with carbon in the form of graphene-encapsulated Fe-based particles with core-shell symmetry that allows flexible control of iron particle size, shape, and phase stability. The method uses FeOOH nanorods and graphene oxide as precursors, and subjects them to an aerosol-phase microdroplet drying and annealing process to yield a range of Fe/C nanohybrids whose structure can be controlled through adjustment of aerosol process temperature and post-synthesis thermal treatment conditions. We demonstrate that FeOOH nanorods can be successfully encapsulated in graphene, and transform during annealing into encapsulated Fe3O4 or Fe0 nanoparticles by reductive fragmentation, where the graphene nanosack acts as a carbothermic reductant. The hybrids are characterized by vibrating sample magnetometry and Cr(VI) reduction rates in aqueous media. The Fe0-graphene hybrids show high activity, good stability, and good recyclability in aqueous Cr(VI) removal due to the effect of graphene encapsulation. The present work suggests this rapid and continuous synthesis method can produce stable Fe-based materials, and can be extended to other metal systems, where graphene encapsulation can induce in situ reduction of metal oxide precursors into zero-valent metal-graphene hybrids.
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Affiliation(s)
- X S Lv
- School of Engineering, Brown University, Providence, Rhode Island 02912; Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, China
| | - Y Qiu
- School of Engineering, Brown University, Providence, Rhode Island 02912
| | - Z Y Wang
- School of Engineering, Brown University, Providence, Rhode Island 02912
| | - G M Jiang
- Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, China
| | - Y T Chen
- School of Engineering, Brown University, Providence, Rhode Island 02912
| | - X H Xu
- Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - R H Hurt
- School of Engineering, Brown University, Providence, Rhode Island 02912
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Wong TC, Chen YT, Wu PY, Chen TW, Chen HH, Chen TH, Hsu YH, Yang SH. Ratio of dietary ω-3 and ω-6 fatty acids-independent determinants of muscle mass-in hemodialysis patients with diabetes. Nutrition 2016; 32:989-94. [PMID: 27157471 DOI: 10.1016/j.nut.2016.02.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 01/18/2016] [Accepted: 02/18/2016] [Indexed: 12/15/2022]
Abstract
OBJECTIVE ω-3 and ω-6 polyunsaturated fatty acids (PUFAs) are essential nutrients in the human diet and possibly affect muscle mass. We evaluated the association between the dietary ratios of ω-3 and ω-6 PUFAs and muscle mass, indicated as skeletal muscle mass (SMM) and appendicular skeletal muscle mass (ASM), in patients with diabetes undergoing hemodialysis (HD). METHODS In this cross-sectional study, data on 69 patients with diabetes who underwent standard HD therapy were analyzed. For estimating muscle mass, anthropometric and bioelectrical impedance analyses were conducted following dialysis. In addition, routine laboratory and 3-d dietary data were obtained. The adequate intake (AI) cut-off for ω-3 PUFAs was 1.6 g/d and 1.1 g/d for male and female patients, respectively. RESULTS The average age of the participants was 63.0 ± 10.4 y. The mean ratios of ω-3/ω-6 PUFA intake, ω-6/ω-3 PUFA intake, SMM, and ASM of the patients were 0.13 ± 0.07, 9.4 ± 6.4, 24.6 ± 5.4 kg, and 18.3 ± 4.6 kg, respectively. Patients who had AI of ω-3 PUFAs had significantly higher SMM and ASM than did their counterparts. Linear and stepwise multivariable adjustment analyses revealed that insulin resistance and the ω-6/ω-3 PUFA ratio were the independent deleterious determinants of ASM normalized to height in HD patients. CONCLUSIONS Patients with AI of ω-3 PUFAs had total-body SMM and ASM that were more appropriate. A higher dietary ratio of ω-6/ω-3 PUFAs was associated with reduced muscle mass in HD patients.
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Affiliation(s)
- Te-Chih Wong
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan, Republic of China
| | - Yu-Tong Chen
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan, Republic of China
| | - Pei-Yu Wu
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan, Republic of China
| | - Tzen-Wen Chen
- Division of Nephrology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan, Republic of China
| | - Hsi-Hsien Chen
- Division of Nephrology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan, Republic of China
| | - Tso-Hsiao Chen
- Division of Nephrology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan, Republic of China
| | - Yung-Ho Hsu
- Division of Nephrology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan, Republic of China
| | - Shwu-Huey Yang
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan, Republic of China; Nutrition Research Center, Taipei Medical University Hospital, Taipei, Taiwan, Republic of China.
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Wu PY, Yang SH, Wong TC, Chen TW, Chen HH, Chen TH, Chen YT. Association of Processed Meat Intake with Hypertension Risk in Hemodialysis Patients: A Cross-Sectional Study. PLoS One 2015; 10:e0141917. [PMID: 26517837 PMCID: PMC4627724 DOI: 10.1371/journal.pone.0141917] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 10/14/2015] [Indexed: 01/12/2023] Open
Abstract
In this cross-sectional study, we hypothesized that hemodialysis patients consuming greater processed meat is associated with hypertension risk, which can be partly explained by the high sodium content in processed meat. From September 2013 to May 2014, one hundred and four patients requiring chronic hemodialysis treatment were recruited from hemodialysis centers. Data on systolic blood pressure and diastolic blood pressure before receiving dialysis, and 3-day dietary records of the recruited patients were collected. HD patients with systolic and diastolic blood pressures greater than140 mmHg and higher than 90 mmHg, respectively, were considered hypertension risk. Protein foods were divided into 4 categories: red meat, white meat, soybeans, and processed meat (e.g., sausage and ham). In a model adjusted for energy intake and hypertension history, additional servings of processed meats was positively associated to systolic blood pressure >140 mmHg (odds ratio [95% confidence interval]: 2.1 [1.0–4.3]), and diastolic blood pressure > 90 mmHg (odds ratio: 2.5 [1.2–5.5]). After adjustment for dietary sodium contents or body mass index (BMI), most associations were substantially attenuated and were no longer significant. In systolic blood pressure greater than140 mmHg, one serving per day of red meats (β = -1.22, P < .05) and white meats (β = -0. 75, P = .05) was associated with a reduced risk compared with one serving per day of processed meats. Similarly, compared with one serving per day of processed meat, a reduced risk of diastolic blood pressure higher than 90 mmHg was associated with one serving per day of red meat (β = -1. 59, P < .05), white meat (β = -0. 62, P < .05). Thus, in these hemodialysis patients, intake of processed meat is significantly positively associated with higher blood pressure risk, and both sodium contents in processed meat and BMI significantly contributes to this association.
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Affiliation(s)
- Pei-Yu Wu
- School of Nutrition and Health Science, Taipei Medical University, Taipei City, Taiwan
| | - Shwu-Huey Yang
- School of Nutrition and Health Science, Taipei Medical University, Taipei City, Taiwan
- * E-mail: (SHY)
| | - Te-Chih Wong
- School of Nutrition and Health Science, Taipei Medical University, Taipei City, Taiwan
| | - Tzen-Wen Chen
- Department of Nephrology, Taipei Medical University Hospital, Taipei City, Taiwan
| | - His-Hsien Chen
- Department of Nephrology, Taipei Medical University Hospital, Taipei City, Taiwan
| | - Tso-Hsiao Chen
- Department of Nephrology, Wan Fang Medical Center, Taipei City, Taiwan
| | - Yu-Tong Chen
- School of Nutrition and Health Science, Taipei Medical University, Taipei City, Taiwan
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Abstract
We evaluated the clinical significance and explored the prognostic value of serum endothelial cell-specific molecule-1 (ESM-1) expression in colorectal cancer (CRC) in a Chinese population. Serum samples were obtained from 89 CRC patients undergoing surgical treatment and 90 healthy volunteers (control group). ESM-1 levels in serum samples from CRC patients and controls were measured using a sandwich enzyme-linked immunosorbent assay. Overall survival was analyzed by the log-rank test, and survival curves were plotted according to the Kaplan-Meier method. Univariate Cox regression was performed on each clinical covariate to examine its influence on patient survival. Final multivariate models were based on step-wise addition. Serum ESM-1 expression levels were significantly higher in patients with CRC (66.81 ± 22.97 pg/mL) than in healthy volunteers (31.50 ± 16.81 pg/mL, P = 0.012). Expression levels of ESM-1 in CRC patients were significantly correlated with histological differentiation (P = 0.004), TNM stage (P = 0.007), depth of tumor invasion (P = 0.02), and lymph node metastasis (P = 0.001). Kaplan-Meier survival curves revealed that the overall survival was significantly lower in patients with high ESM-1 levels than in those with low levels (29.43 vs 61.20%, P = 0.0166). Multivariate analysis confirmed that the hazard risk of death was significantly higher in patients with high serum ESM-1 expression compared with low expression (hazard risk = 4.09, 95% confidence interval: 2.27-10.88, P < 0.001). Detection of ESM-1 levels in the serum may serve as a tumor biomarker for assessing prognosis in CRC.
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Affiliation(s)
- H Jiang
- Department of Colorectal Surgery, Binzhou Medical University Hospital, Binzhou, China
| | - X G Fu
- Department of Colorectal Surgery, Binzhou Medical University Hospital, Binzhou, China
| | - Y T Chen
- Department of Colorectal Surgery, Binzhou Medical University Hospital, Binzhou, China
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Goh SY, Ang SB, Bee YM, Chen YT, Gardner DS, Ho ET, Adaikan K, Lee YC, Lee CH, Lim FS, Lim HB, Lim SC, Seow J, Soh AW, Sum CF, Tai ES, Thai AC, Wong TY, Yap F. Ministry of Health Clinical Practice Guidelines: Diabetes Mellitus. Singapore Med J 2015; 55:334-47. [PMID: 25017409 DOI: 10.11622/smedj.2014079] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The Ministry of Health (MOH) have updated the clinical practice guidelines on Diabetes Mellitus to provide doctors and patients in Singapore with evidence-based treatment for diabetes mellitus. This article reproduces the introduction and executive summary (with recommendations from the guidelines) from the MOH clinical practice guidelines on Diabetes Mellitus, for the information of SMJ readers. Chapters and page numbers mentioned in the reproduced extract refer to the full text of the guidelines, which are available from the Ministry of Health website: http://www.moh.gov.sg/content/moh_web/healthprofessionalsportal/doctors/guidelines/cpg_medical.html. The recommendations should be used with reference to the full text of the guidelines. Following this article are multiple choice questions based on the full text of the guidelines.
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Affiliation(s)
- S Y Goh
- Department of Endocrinology, Singapore General Hospital, Outram Road, Singapore 169608.
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Amloy S, Karlsson KF, Eriksson MO, Palisaitis J, Persson POÅ, Chen YT, Chen KH, Hsu HC, Hsiao CL, Chen LC, Holtz PO. Excitons and biexcitons in InGaN quantum dot like localization centers. Nanotechnology 2014; 25:495702. [PMID: 25410551 DOI: 10.1088/0957-4484/25/49/495702] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Indium segregation in a narrow InGaN single quantum well creates quantum dot (QD) like exciton localization centers. Cross-section transmission electron microscopy reveals varying shapes and lateral sizes in the range ∼1-5 nm of the QD-like features, while scanning near field optical microscopy demonstrates a highly inhomogeneous spatial distribution of optically active individual localization centers. Microphotoluminescence spectroscopy confirms the spectrally inhomogeneous distribution of localization centers, in which the exciton and the biexciton related emissions from single centers of varying geometry could be identified by means of excitation power dependencies. Interestingly, the biexciton binding energy (E(b)xx) was found to vary from center to center, between 3 to -22 meV, in correlation with the exciton emission energy. Negative binding energies are only justified by a three-dimensional quantum confinement, which confirms QD-like properties of the localization centers. The observed energy correlation is proposed to be understood as variations of the lateral extension of the confinement potential, which would yield smaller values of E(b)xx for reduced lateral extension and higher exciton emission energy. The proposed relation between lateral extension and E(b)xx is further supported by the exciton and the biexciton recombination lifetimes of a single QD, which suggest a lateral extension of merely ∼3 nm for a QD with strongly negative E(b)xx = -15.5 meV.
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Affiliation(s)
- S Amloy
- Department of Physics, Chemistry, and Biology (IFM), Linköping University, SE-58183 Linköping, Sweden. Department of Physics, Faculty of Science, Thaksin University, Phattalung 93110, Thailand.
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Chen YT. Dental Care Use And Associated Factors Among People With Rheumatoid Arthritis: A Nationwide, Population-Based, Propensity Score-Matched Follow-Up Study. Value Health 2014; 17:A613. [PMID: 27202141 DOI: 10.1016/j.jval.2014.08.2155] [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] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- Y T Chen
- Yang-Ming University, Taiwan, Taiwan
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Yang JC, Yeh CH, Chen YT, Liao SC, Huang R, Liu HJ, Hung CC, Chen SH, Wu SL, Lai CH, Chiu YP, Chiu PW, Chu YH. Conduction control at ferroic domain walls via external stimuli. Nanoscale 2014; 6:10524-10529. [PMID: 25092204 DOI: 10.1039/c4nr03300k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Intriguing functionalities at nano-sized domain walls have recently spawned a new paradigm for developing novel nanoelectronics due to versatile characteristics. In this study, we explore a new scenario to modulate the local conduction of ferroic domain walls. Three controlling parameters, i.e., external electrical field, magnetic field and light, are introduced to the 90° domain walls (90° DWs) of BiFeO₃. Electrical modulation is realized by electrical transport, where the mobility of 90° DWs can be altered by gating voltage. We further use the ferromagnetic/antiferromagnetic coupling to reveal the inherent magnetism at the DWs. With an established magnetic nature, magnetotransport has been conducted to introduce magnetic controlling parameter, where a giant positive magnetoresistance change can be observed up to 200%. In addition, light modulated conduction, a core factor for multifunctional applications, is successfully demonstrated (current enhancement by a factor of 2 with 11 W white lamp). These results offer new insights to discover the tunability of domain wall nanoelectronics.
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Affiliation(s)
- J C Yang
- Department of Materials Science and Engineering, National Chiao Tung University, Room 709, Engineering Building VI, 1001 University Road, Hsinchu, 30010, Taiwan.
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Liu J, Jiang JM, Chen YT. Genetic diversity of central and peripheral populations of Toona ciliata var. pubescens, an endangered tree species endemic to China. Genet Mol Res 2014; 13:4579-90. [PMID: 25036507 DOI: 10.4238/2014.june.17.10] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Our objective was to examine the genetic diversity of central and peripheral populations of Toona ciliata var. pubescens, to elucidate whether the central-peripheral hypothesis applies to these populations. We analyzed 392 individuals from nine natural populations using eight pairs of polymorphic SSR primers. The results showed that the mean numbers of observed and expected alleles in peripheral populations were higher than in central populations. Common widespread and rare local (RL) alleles were observed in all populations. However, common local alleles were found in five populations and rare widespread alleles were only found in three. The total numbers of the four types of alleles were higher in peripheral than in central populations, and the quantity of the RL allele was obviously higher in the peripheral populations than in the central populations. Both the observed and expected heterozygosities were higher in peripheral populations compared with the central populations. The coefficient of gene differentiation of the peripheral populations was 0.3045, which was significantly higher than that of the central populations. The gene flow between central populations was greater than one, but less than one between peripheral populations. This indicates that frequent gene flow exists between central populations, while terrain and habitat fragmentation prevent gene flow between peripheral populations. A Mantel test indicated that there was no relationship between genetic and geographical distance of T. ciliata var. pubescens.
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Affiliation(s)
- J Liu
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, Zhejiang, China
| | - J M Jiang
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, Zhejiang, China
| | - Y T Chen
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, Zhejiang, China
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Chen YT, Yang WC, Chen TW, Lin CC. Trichosporon mucoides peritonitis in a continuous ambulatory peritoneal dialysis patient. Perit Dial Int 2014; 33:341-2. [PMID: 23660618 DOI: 10.3747/pdi.2012.00146] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Liu SY, Sheu JK, Lin YC, Chen YT, Tu SJ, Lee ML, Lai WC. InGaN working electrodes with assisted bias generated from GaAs solar cells for efficient water splitting. Opt Express 2013; 21 Suppl 6:A991-A996. [PMID: 24514940 DOI: 10.1364/oe.21.00a991] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Hydrogen generation through water splitting by n-InGaN working electrodes with bias generated from GaAs solar cell was studied. Instead of using an external bias provided by power supply, a GaAs-based solar cell was used as the driving force to increase the rate of hydrogen production. The water-splitting system was tuned using different approaches to set the operating points to the maximum power point of the GaAs solar cell. The approaches included changing the electrolytes, varying the light intensity, and introducing the immersed ITO ohmic contacts on the working electrodes. As a result, the hybrid system comprising both InGaN-based working electrodes and GaAs solar cells operating under concentrated illumination could possibly facilitate efficient water splitting.
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Chen YT, Rabilloud M, Thiolet JM, Coignard B, Metzger MH. Benchmarking French regions according to their prevalence of healthcare-associated infections. Int J Qual Health Care 2013; 25:555-63. [PMID: 23929913 DOI: 10.1093/intqhc/mzt050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE To propose an original method of benchmarking regions based on their prevalence of healthcare-associated infections (HAIs) and to identify regions with unusual results. DESIGN To study between-region variability with a three-level hierarchical logistic regression model and a Bayesian non-parametric method. SETTING French 2006 national HAIs point prevalence survey. PARTICIPANTS A total of 336 858 patients from 2289 healthcare facilities in 27 regions. Patients with an imported HAI (1% of the data, 20.7% of infected patients), facilities with <5 patients and patients who had at least one missing value for the variables taken into account were excluded (5.0% of patients). MAIN OUTCOME MEASURE Binary outcome variable indicates whether a given patient was infected. RESULTS Two clusters of regions were identified: one cluster of five regions had a lower adjusted prevalence than the other one of 22 regions, while no region with unusually high prevalence could be identified. Nevertheless, the degree of heterogeneity of odds ratios between facilities for facility-specific effects of use of invasive devices was more important in some regions than in others. CONCLUSIONS The adjusted regional prevalence of HAIs can serve as an adequate benchmark to identify regions with concerning results. Although no outlier regions were identified, the proposed approach could be applied to the data of the 2012 national survey to benchmark regional healthcare policies. The estimation of facility-specific effects of use of invasive devices may orient future regional action plans.
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Affiliation(s)
- Y T Chen
- Applied Mathematics and Systems Department, École Centrale Paris, 92295 Châtenay-Malabry, France.
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Tan G, De Roza J, Chen YT, How CH. Diabetes mellitus: the first visit. Singapore Med J 2013; 54:377-80; quiz 381. [DOI: 10.11622/smedj.2013137] [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: 11/18/2022]
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Li S, Liu ZC, Yin SJ, Chen YT, Yu HL, Zeng J, Zhang Q, Zhu F. Human endogenous retrovirus W family envelope gene activates the small conductance Ca2+-activated K+ channel in human neuroblastoma cells through CREB. Neuroscience 2013; 247:164-74. [PMID: 23727510 DOI: 10.1016/j.neuroscience.2013.05.033] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Revised: 05/17/2013] [Accepted: 05/17/2013] [Indexed: 11/25/2022]
Abstract
Numerous studies have shown that human endogenous retrovirus W family (HERV-W) envelope gene (env) is related to various diseases but the underlying mechanism has remained poorly understood. Our previous study showed that there was abnormal expression of HERV-W env in sera of patients with schizophrenia. In this paper, we reported that overexpression of the HERV-W env elevated the levels of small conductance Ca(2+)-activated K(+) channel protein 3 (SK3) in human neuroblastoma cells. Using a luciferase reporter system and RNA interference method, we found that functional cAMP response element site was required for the expression of SK3 triggered by HERV-W env. In addition, it was also found that the SK3 channel was activated by HERV-W env. Further study indicated that cAMP response element-binding protein (CREB) was required for the activation of the SK3 channel. Thus, a novel signaling mechanism of how HERV-W env influences neuronal activity and contributes to mental illnesses such as schizophrenia was proposed.
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Affiliation(s)
- S Li
- Department of Medical Microbiology, School of Medicine, Wuhan University, Wuhan 430071, PR China
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Wang SJ, Sui ML, Chen YT, Lu QH, Ma E, Pei XY, Li QZ, Hu HB. Microstructural fingerprints of phase transitions in shock-loaded iron. Sci Rep 2013; 3:1086. [PMID: 23336068 PMCID: PMC3548189 DOI: 10.1038/srep01086] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2012] [Accepted: 12/11/2012] [Indexed: 11/25/2022] Open
Abstract
The complex structural transformation in crystals under static pressure or shock loading has been a subject of long-standing interest to materials scientists and physicists. The polymorphic transformation is of particular importance for iron (Fe), due to its technological and sociological significance in the development of human civilization, as well as its prominent presence in the earth's core. The martensitic transformation α→ε (bcc→hcp) in iron under shock-loading, due to its reversible and transient nature, requires non-trivial detective work to uncover its occurrence. Here we reveal refined microstructural fingerprints, needle-like colonies and three sets of {112}<111> twins with a threefold symmetry, with tell-tale features that are indicative of two sequential martensitic transformations in the reversible α→ε phase transition, even though no ε is retained in the post-shock samples. The signature orientation relationships are consistent with previously-proposed transformation mechanisms, and the unique microstructural fingerprints enable a quantitative assessment of the volume fraction transformed.
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Affiliation(s)
- S J Wang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, China
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