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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; 59:508-512. [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] [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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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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Zhou WS, Silva M, Yang C, Li S, Chen YT, Zheng WH. Mechanism and Molecular Targets of a Water-Soluble Extract of Artemisia annua on the Treatment of Alzheimer's Disease Based on Network Pharmacology and Experimental Validation. Am J Chin Med 2023; 51:595-622. [PMID: 36999542 DOI: 10.1142/s0192415x23500295] [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: 04/01/2023]
Abstract
Oxidative stress is an important contributor to the pathogenesis of Alzheimer's disease (AD). The overproduction of reactive oxygen species observed in AD patients results in the loss of mitochondrial function, altered metal ion homeostasis, lipopolysaccharide metabolism disorder, reduced anti-oxidant defense, increased release of inflammatory factors, and the aggravation and accumulation of amyloid-beta and tau hyper-phosphorylation, which directly cause synaptic and neuronal loss and lead to cognitive dysfunction. Thus, oxidative stress proves to be a fundamental part of AD development and progression, suggesting the potential benefits of anti-oxidant-based therapies for AD. In this study, we found that a water-soluble extract of Artemisia annua (WSEAA), a traditional Chinese herbal medicine, has a strong anti-oxidant function. We also found that WSEAA is able to improve the cognitive function of 3xTg AD mice. However, the mechanisms and molecular targets underlying WSEAA action are still not known. In order to uncover the potential molecular mechanisms involved, we used a combination of network pharmacology and different experimental approaches. Obtained results revealed key genes (such as AKT1, BCL2, IL-6, TNF-[Formula: see text] and BAX) and signaling pathways (like PI3K-AKT and BCL2/BAX) are closely associated with the biological processes responding to oxidative stress. Further verification of the survival/anti-oxidant effects of WSEAA in vitro and in vivo showed that the extract has anti-oxidatant/neuronal survival action against H2O2-induced damage, and is thus able to prevent the cognitive decline and pathological changes of 3xTg transgenic (3xTg) mice via the regulation of key target-genes and pathways, such as PI3K-AKT and BCL2/BAX, related to survival/apoptosis. Our findings strongly indicate the potential of WSEAA for the prevention and treatment of AD.
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Affiliation(s)
- Wen-Shu Zhou
- Center of Reproduction, Development & Aging and Institute of Translation Medicine, Faculty of Health Sciences, University of Macau, Taipa 999078, Macau SAR, P. R. China
| | - Marta Silva
- Center of Reproduction, Development & Aging and Institute of Translation Medicine, Faculty of Health Sciences, University of Macau, Taipa 999078, Macau SAR, P. R. China
| | - Chao Yang
- Center of Reproduction, Development & Aging and Institute of Translation Medicine, Faculty of Health Sciences, University of Macau, Taipa 999078, Macau SAR, P. R. China
| | - Shuai Li
- Center of Reproduction, Development & Aging and Institute of Translation Medicine, Faculty of Health Sciences, University of Macau, Taipa 999078, Macau SAR, P. R. China
| | - Yi-Tian Chen
- Center of Reproduction, Development & Aging and Institute of Translation Medicine, Faculty of Health Sciences, University of Macau, Taipa 999078, Macau SAR, P. R. China
| | - Wen-Hua Zheng
- Center of Reproduction, Development & Aging and Institute of Translation Medicine, Faculty of Health Sciences, University of Macau, Taipa 999078, Macau SAR, P. R. China
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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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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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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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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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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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Chen YT, Xiang D, Zhao XY, Chu XY. Upregulation of lncRNA NIFK-AS1 in hepatocellular carcinoma by m 6A methylation promotes disease progression and sorafenib resistance. Hum Cell 2021; 34:1800-1811. [PMID: 34374933 DOI: 10.1007/s13577-021-00587-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Accepted: 07/31/2021] [Indexed: 02/07/2023]
Abstract
Long non-coding RNAs (LncRNAs) have recently emerged as vital regulators in the development and progression of hepatocellular carcinoma (HCC), providing new opportunities as novel therapeutic targets. Here we identified the lncRNA NIFK-AS1 as being highly expressed in HCC tissues and cells and showed this up-regulation resulted from METTL3-dependent m6A methylation. Functionally, knockdown of NIFK-AS1 inhibited the proliferation, colony formation, migration, and invasion of HCC cells. Moreover, these effects were elicited though AKT1 and we uncovered a ceRNA network involving an NIFK-AS1/miR-637/AKT1 axis with downstream effects on HCC progression involving regulation of MMP-7 and MMP-9 expression. From the clinical perspective, we showed that knockdown of NIFK-AS1 sensitized HCC cells to sorafenib through the up-regulation of the drug transporters OATP1B1 and OATP1B3. Clinical investigations showed HCC patients with low NIFK-AS1 expression benefited from sorafenib therapy and this phenomenon was reproduced in patient-derived tumor xenograft models (PDX) comparing HCC with low and high expression of NIFK-AS1. Taken together, these results suggest an essential role for NIFK-AS1 in HCC progression and promote NIFK-AS1 as a new therapeutic target and predictor of sorafenib benefit in HCC patients.
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Affiliation(s)
- Yi-Tian Chen
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Zhongshan East Road 305, Nanjing, 210002, Jiangsu, China
| | - Dan Xiang
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Zhongshan East Road 305, Nanjing, 210002, Jiangsu, China
| | - Xiao-Yue Zhao
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Zhongshan East Road 305, Nanjing, 210002, Jiangsu, China
| | - Xiao-Yuan Chu
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Zhongshan East Road 305, Nanjing, 210002, Jiangsu, China.
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Li JX, Su TS, Lin XF, Chen YT, Liang SX, Xiang BD. Combining radiation therapy with anti-PD-1 for patients with advanced hepatocellular carcinoma: An open-label, single-center, single-arm clinical study. J Clin Oncol 2021. [DOI: 10.1200/jco.2021.39.15_suppl.e16117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e16117 Combining radiation therapy with anti-PD-1 for patients with advanced hepatocellular carcinoma: an open-label, single-center, single-arm clinical study Jian-Xu Li, Ting-Shi Su, Xiao-Feng Lin, Yi-Tian Chen, Shi-Xiong Liang, Bang-De Xiang; Guangxi Medical University Cancer Hospital, Nanning, China Abstract Research Funding: Jiangsu Hengrui Pharmaceuticals Co., Ltd., Shanghai, China. Guangxi Medical and Health Appropriate Technology Development and Application Project (No. S2019039), Guangxi, China. Background: Based on the results of recent studies, the PD-1 monoclonal antibodies have been approved to treat the patients with advanced hepatocellular carcinoma (HCC) by the FDA. Radiation therapy (RT) can enhance responsiveness to PD-1 monoclonal antibody by potential mechanisms. A phase Ⅱa study was conducted to assess the safety and the efficacy of combining RT with anti-PD-1 for patients with advanced hepatocellular carcinoma. Methods: Patients with advanced HCC were eligible. Stereotactic body radiation therapy (SBRT) were adopted, and the dose of radiation were Dt-PGTV 30-50 Gy/10fractions. Camrelizumab (200mg) were given intravenously every 3 weeks since the first day of RT until disease progression, or intolerable toxicity. Adverse events (AEs) and objective response rate (ORR) were summarized to assess the safety and efficacy. Results: From April 2020 to November 2020, 17 patients were enrolled (median age 54, range 32-69). 15 (88%) patients were male. 14 (82%) had ECOG performance score of 0. All the patients had Child-Pugh score A. 16 patients staged as Barcelona Clinic Liver Cancer staging C or China Liver Cancer staging Ⅲ. Extrahepatic metastases were identified in 11 (65%) patients. 13 (77%) patients were Hepatitis B virus infected. 15 (88%) patients had previously 2 lines or more chemotherapy. 9 (53%) patients had Alpha-fetoprotein level≥400 ng/ml. The ORR was 47%. The best response assessed by RECIST 1.1 was partial response (8 patients). Four patients had grade 3 immune-related adverse events (irAEs), including increased aspartate aminotransferase and alanine transaminase (n =1),decreased hemoglobin (n =1),decreased platelet count (n =1),decreased neutrophil count (n =1). All grade 3 irAEs were mitigated with proper treatment. None treatment-related deaths occurred. Conclusions: In this study, RT combined with anti-PD-1 had an acceptable safety profile and indicated an effective treatment option in patients with unresectable HCC. Clinical trial information: NCT04193696. Clinical trial information: NCT04193696.
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Affiliation(s)
- Jian-Xu Li
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Ting-Shi Su
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Xiao-Feng Lin
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Yi-Tian Chen
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Shi-Xiong Liang
- Department of Radiation Oncology,Guangxi Medical University Cancer Hospital, Nanning, China
| | - Bang-De Xiang
- Department of Hepato-Pancreato-Biliary Surgery, Guangxi Medical University Cancer Hospital, Nanning, China
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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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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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Zhang JS, Zhang ZL, Yan MZ, Lin XM, Chen YT. Gas chromatographic-ion mobility spectrometry combined with a multivariate analysis model exploring the characteristic changes of odor components during the processing of black sesame. Anal Methods 2020; 12:4987-4995. [PMID: 33006337 DOI: 10.1039/d0ay01257b] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Black sesame (Sesamum indicum L.) is a Chinese dietary herb that has been widely used in the medical and healthcare fields in China. According to the theory of Traditional Chinese medicine processing, reasonable processing (steaming and drying many times) can increase the tonic effect and reduce the adverse factors generated during long-term use. At present, the processing degree of black sesame is mainly judged based on subjective experience. However, due to the lack of objective and quantitative control indicators, quality fluctuations easily occur. Therefore, for better application, its processing technology needs scientific monitoring methods. Herein a gas chromatography-ion mobility spectrometry (GC-IMS) technique was applied as a monitoring method to differentiate the processed products of black sesame in different processing stages. The response data of volatile components obtained from the samples were processed by the built-in data processing software in the instrument to identify the different components for further principal component analysis (PCA) and orthogonal partial least squares discriminant analysis (OPLS-DA). From fingerprint comparison, 70 differential signal peaks were screened, 32 of which were qualitatively identified, mainly monomers and dimers of 20 compounds. On this basis, the PCA model shows that there was a significant difference between the raw product (S1) and the processed products (H1-9); moreover, there was a certain correlation between the differential changes of samples in different processing stages (H1-9) and the processing times. The OPLS-DA model specifically shows the differential components in the processing with potential characteristics peaks of 41, 105, n-nonanal, 2 and ethanol can discriminate whether the BS has undergone the first processed. And the dynamic changes of the three characteristic peaks of 1-hexanol, acetic acid and 107 can determine the specific degree of processing of BS. The research proves that GC-IMS combined with a multivariate analysis model can provide scientific data for identifying the characteristic odor components of black sesame.
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Su TS, Li LQ, Meng WW, Wang YD, Chen YT, Li JX, Du YQ, Qu S, Zhao C, Huang DJ, Liang SX, Li LQ. Long-Term Survival Analysis of Transarterial Chemoembolization Plus Radiotherapy vs. Radiotherapy for Hepatocellular Carcinoma With Macroscopic Vascular Invasion. Front Oncol 2020; 10:1205. [PMID: 32850352 PMCID: PMC7416768 DOI: 10.3389/fonc.2020.01205] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 06/15/2020] [Indexed: 12/13/2022] Open
Abstract
Background: Macroscopic vascular invasion (MVI) is a terminal manifestation of hepatocellular carcinoma (HCC) and carries an extremely poor prognosis. In Chinese and Korean HCC guidelines, transarterial chemoembolization (TACE), or/and radiotherapy (RT) is adopted for treatment of MVI. In the current study, we aimed to compare the long-term outcome of TACE + RT to that of RT alone in patients with local advanced HCC with MVI. Methods: In this retrospective study, 148 treatment-naive patients of HCC with MVI were enrolled. Of the patients enrolled, 49 received TACE + RT treatment, whereas 99 patients received RT alone as a monotherapy. Overall survival (OS), progression-free survival (PFS), and intrahepatic control were evaluated using univariable and propensity score–matched analyses. Results: During follow-up, 126 patients (85.1%) died. The median follow-up time was 55.0 months in the RT group and 57.0 months in the TACE + RT group. The TACE + RT group showed better OS and PFS than the RT group, but intrahepatic control was comparable in these two groups. Of 41 cases well-pairs after propensity score matching, the associations between TACE + RT and better OS and PFS remained (15.0 vs. 8.0 months, and 8.0 vs. 4.0 months, all P < 0.05). The 1-, 2-, 3-, and 5-years OS rates in the TACE + RT group were 56.1, 28.6, 20.8, and 15.7 vs. 31.5%, 13.1%, 9.8%, and 6.7% in the RT group, respectively (P = 0.017). The 6-, 12-, and 24-months rates in the TACE + RT group were 51.2, 39.0, and 23.1% vs. 36.6%, 13.9%, and 11.1% in the RT group, respectively (P = 0.04). Two patients (4.1%) experienced radiation-induced liver disease (RILD), and one (2.0%) experienced RT-related gastrointestinal (GI) bleed in the TACE + RT groups. Nine patients (9.1%) experienced RILD, and two (2.0%) experienced RT-related GI bleed in the RT groups. Conclusion: Transarterial chemoembolization + RT had well-complementarity with no more complications than RT alone, providing a better PFS and OS compared with RT-alone treatment for HCC with MVI.
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Affiliation(s)
- Ting-Shi Su
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Li-Qing Li
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Wan-Wan Meng
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Yu-Dan Wang
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Yi-Tian Chen
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Jian-Xu Li
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - You-Qin Du
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Song Qu
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Chang Zhao
- Department of Interventional Radiology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - De-Jia Huang
- Department of Interventional Radiology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Shi-Xiong Liang
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Le-Qun Li
- Department of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning, China
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Tang XY, Huang MX, Han SQ, Chang Y, Li ZP, Kao XM, Chen YY, Liu C, Huang YD, Chen YT, Lei ZJ, Chu XY. The Circumferential Resection Margin Is a Prognostic Predictor in Colon Cancer. Front Oncol 2020; 10:927. [PMID: 32670875 PMCID: PMC7332859 DOI: 10.3389/fonc.2020.00927] [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] [Received: 11/29/2019] [Accepted: 05/12/2020] [Indexed: 12/05/2022] Open
Abstract
Objective: This study aimed to investigate the potential value of circumferential resection margin (CRM) in colon cancer prognostics. Summary Background Data: CRM has been extensively studied as an important prognostic factor in rectal and esophageal cancer, but not in colon cancer. Methods: Data from 6,681 CRM-positive patients and 25,908 CRM-negative patients diagnosed with colon cancer in 2010–2015 were obtained from the Surveillance, Epidemiology, and End Results database. Statistical analysis methods utilized included the chi-square test, Kaplan-Meier estimates, Cox proportional, and X-tile software analyses. Results: After propensity score matching, CRM positivity was found to be negatively related with survival (P < 0.001). X-tile software identified 0 and 30 mm as optimal cutoff values (P < 0.001) for prognosis, which was applicable only in stage II–IV patients. A 20 and 33% risk decrease were observed in patients with CRM between 0 and 30 mm [95% confidence interval (CI) = 0.76–0.84], and larger than 30 mm (95% CI = 0.62–0.71), respectively. Chemotherapy strongly benefited prognosis with a hazard ratio of 0.36 (95% CI = 0.34–0.38) for overall survival (OS). Patients with a CRM value of 0–30 mm seemed to benefit most from chemotherapy compared with other groups. CRM and number of regional lymph nodes are independent risk factors, and the latter is a good substitute for CRM in AJCC stage I patients. Conclusion: CRM positivity is a strong unfavorable survival indicator for colon cancer patients. A better outcome is expected with CRM values larger than 30 mm. This cutoff value only applied to stage II–IV patients. For stage I patients, number of regional lymph nodes is a good substitute to predict survival. Chemotherapy was another favorable prognostic factor, especially for patients with a CRM value between 0 and 30 mm.
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Affiliation(s)
- Xin-Yi Tang
- Department of Medical Oncology, School of Medicine, Jingling Hospital, Nanjing University, Nanjing, China.,School of Medicine, Nanjing University, Nanjing, China
| | - Meng-Xi Huang
- Department of Medical Oncology, School of Medicine, Jingling Hospital, Nanjing University, Nanjing, China
| | - Si-Qi Han
- Department of Medical Oncology, School of Medicine, Jingling Hospital, Nanjing University, Nanjing, China
| | - Yue Chang
- Department of Medical Oncology, School of Medicine, Jingling Hospital, Nanjing University, Nanjing, China
| | - Zhi-Ping Li
- Department of Medical Oncology, Jinling Hospital, Nanjing Clinical School of Southern Medical University, Nanjing, China
| | - Xiao-Ming Kao
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Yan-Yan Chen
- Department of Medical Oncology, School of Medicine, Jingling Hospital, Nanjing University, Nanjing, China
| | - Chao Liu
- Department of Medical Oncology, Jinling Hospital, Nanjing Clinical School of Nanjing Medical University, Nanjing, China
| | - Ya-Di Huang
- Department of Medical Oncology, Jinling Hospital, Nanjing Clinical School of Southern Medical University, Nanjing, China
| | - Yi-Tian Chen
- Department of Medical Oncology, School of Medicine, Jingling Hospital, Nanjing University, Nanjing, China
| | - Zeng-Jie Lei
- Department of Medical Oncology, School of Medicine, Jingling Hospital, Nanjing University, Nanjing, China.,Department of Medical Oncology, Jinling Hospital, Nanjing Clinical School of Southern Medical University, Nanjing, China
| | - Xiao-Yuan Chu
- Department of Medical Oncology, School of Medicine, Jingling Hospital, Nanjing University, Nanjing, China.,Department of Medical Oncology, Jinling Hospital, Nanjing Clinical School of Southern Medical University, Nanjing, China
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19
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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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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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Li ZP, Liu XY, Kao XM, Chen YT, Han SQ, Huang MX, Liu C, Tang XY, Chen YY, Xiang D, Huang YD, Lei ZJ, Chu XY. Clinicopathological characteristics and prognosis of colorectal mucinous adenocarcinoma and nonmucinous adenocarcinoma: a surveillance, epidemiology, and end results (SEER) population-based study. Ann Transl Med 2020; 8:205. [PMID: 32309352 PMCID: PMC7154470 DOI: 10.21037/atm.2020.01.52] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 11/10/2019] [Accepted: 12/27/2019] [Indexed: 02/05/2023]
Abstract
BACKGROUND Mucinous adenocarcinoma (MC) is a rare histological subtype of colorectal adenocarcinoma. Previous studies investigating the prognosis of MC have conflicting results and the proper treatment of MC remains unclear. METHODS This retrospective study presents the clinicopathological characteristics and prognosis of MC. This cohort study collected data from April 1 through August 01, 2018. This study used data on 107,735 patients with nonmucinous adenocarcinoma (NMC) and 9,494 with MC between 2009 and 2013 from the Surveillance, Epidemiology, and End Results program (SEER). Clinicopathological features were analyzed by chi-square test and survival curves by the Kaplan-Meier method. We used propensity score matching (PSM) to account for potential bias. Logistic regression and Cox proportional hazards models were used to compare and calculate adjusted risks of MC death. RESULTS MC was more frequent in patients with older age, large tumor size and moderate tumor grade compared with NMC (P<0.001). Five-year survival was lower for MC patients than NMC patients (P<0.001). Older age, later tumor node metastasis (TNM) stage and multiple tumors indicated a poorer prognosis while surgery gave better survival outcomes [hazard ratio (HR) =0.38; 95% confidence interval (CI), 0.33 to 0.44; P<0.001]. Younger age, left-side colon location and early disease stage were associated with better survival after surgery (P<0.001). CONCLUSIONS Age, TNM stage, tumor number and treatment were indicators of prognosis and surgery gave better survival for MC patients compared with those without surgery. Our study contributes to their clinical treatment.
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Affiliation(s)
- Zhi-Ping Li
- Department of Medical Oncology, Jinling Hospital, The First School of Clinical Medicine, Southern Medical University, Nanjing 210002, China
| | - Xin-Yi Liu
- Department of Radiology, Shenzhen Children's Hospital, Shantou University Medical College, Shenzhen 518000, China
| | - Xiao-Ming Kao
- Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Yi-Tian Chen
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Si-Qi Han
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Meng-Xi Huang
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Chao Liu
- Department of Medical Oncology, Jinling Hospital, Nanjing Clinical School of Nanjing Medical University, Nanjing 210002, China
| | - Xin-Yi Tang
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Yan-Yan Chen
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Dan Xiang
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Ya-Di Huang
- Department of Medical Oncology, Jinling Hospital, The First School of Clinical Medicine, Southern Medical University, Nanjing 210002, China
| | - Zeng-Jie Lei
- Department of Medical Oncology, Jinling Hospital, The First School of Clinical Medicine, Southern Medical University, Nanjing 210002, China
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Xiao-Yuan Chu
- Department of Medical Oncology, Jinling Hospital, The First School of Clinical Medicine, Southern Medical University, Nanjing 210002, China
- Department of Medical Oncology, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
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22
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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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23
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Wang RS, Zhang ZL, Chen YT, Xia YL, Lin XM, Zhang JS, Yan MZ. [Transformation and attribution of drug properties in Galla Chinesis fermented Baiyaojian based on cold and heat syndrome rats]. Zhongguo Zhong Yao Za Zhi 2019; 44:2084-2089. [PMID: 31355565 DOI: 10.19540/j.cnki.cjcmm.20181221.004] [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: 11/18/2022]
Abstract
To reveal the transformation and attribution of drug properties in Galla Chinesis fermented Baiyaojian by studying the effect of Galla Chinesis and Baiyaojian on cold and heat syndrome rats. Euthyrox was used to induce the hyperthyrosis model,ice water stimulation was used to induce the cold syndrome model,and different concentrations of Galla Chinesis and Baiyaojian water decoction were administrated by gavage for 15 d continuously. Symptom indexes were evaluated,content of pyruvic acid( PA),ATPase activity in liver and contents of DA,T4,cAMP,5-HT,NE,17-OHCS,TRH and TSH in serum were assayed by enzyme linked immunosorbent assay and spectrophotometry. The rectal temperature,water consumption and body weight of heat syndrome rats in model group were increased,cAMP,NE,17-OHCS,TRH and PA were increased,TSH,Na-K ATPase and Ca-Mg ATPase were increased significantly( P<0. 01),while 5-HT was decreased,compared with those of the blank group( P< 0. 05),the contents of T4,DA,NE,TSH,TRH,cAMP and 17-OHCS were decreased significantly( P<0. 01),PA and Ca-Mg ATPase in WG and BG groups were decreased compared with those of the model group( P<0. 05),and the Galla Chinesis content of WG group was lower than that of BG group,while the contents of 5-HT in WG and BG groups were increased,and the Galla Chinesis content of WG group was higher than that of BG group,with no significant difference of viscera index between heat syndrome rats in blank group,model group and drug groups. The rectal temperature,water consumption and body weight of cold syndrome rats in model group were decreased,DA,T4,cAMP,NE,17-OHCS,TRH,TSH,PA,Na-K ATPase and Ca-Mg ATPase of rats in model group were decreased,whereas 5-HT was increased compared with those of the blank group( P<0. 05),the indexes of heart,lung and kidney were significantly higher than those in the blank group( P<0. 05). Both Galla Chinesis and Baiyaojian can significantly alleviate the symptoms of heat syndrome rats caused by levothyroxine sodium. Galla Chinesis has a better effect than Baiyaojian,but cannot alleviate the symptoms of cold syndrome caused by ice water stimulation,suggestting that the decoction of Galla Chinesis and Baiyaojian are both cold,but Galla Chinesis is colder than Baiyaojian. Cold property in Galla Chinesis fermented Baiyaojian can be relieved. In clinical application,the property of " slight cold" is more accurate than " neutral property" for Baiyaojian.
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Affiliation(s)
- Rui-Sheng Wang
- Henan University of Chinese Medicine Zhengzhou 450008,China
| | | | - Yi-Tian Chen
- Henan University of Chinese Medicine Zhengzhou 450008,China
| | - Yun-Ling Xia
- Henan University of Chinese Medicine Zhengzhou 450008,China
| | - Xiu-Min Lin
- Henan University of Chinese Medicine Zhengzhou 450008,China
| | | | - Meng-Zhen Yan
- Henan University of Chinese Medicine Zhengzhou 450008,China
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24
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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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25
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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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26
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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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Liang Y, Du JY, Fang JF, Fang RY, Zhou J, Shao XM, Jiang YL, Chen YT, Fang JQ. Alleviating Mechanical Allodynia and Modulating Cellular Immunity Contribute to Electroacupuncture's Dual Effect on Bone Cancer Pain. Integr Cancer Ther 2017; 17:401-410. [PMID: 28870114 PMCID: PMC6041932 DOI: 10.1177/1534735417728335] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [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: 12/15/2022] Open
Abstract
Hypothesis: Electroacupuncture (EA) has been used as an alternative analgesic therapy for hundreds of years, yet its analgesic potency and therapeutic advantage against bone cancer pain (BCP) in comparison with morphine remains unclear. This study aimed to investigate the effects of EA on mechanical allodynia and cellular immunity of BCP rats, and to further explore the potential mechanism. Methods: The BCP model was established by implanting Walker 256 mammary gland carcinoma cells into the left tibia of adult female Sprague-Dawley rats. EA (dilatational wave, 2/100 Hz, 0.5 mA–1mA–1.5 mA for 10 minutes each intensity) was applied bilaterally to Zusanli (ST 36) and Kunlun (BL 60) for 30 minutes. Both EA stimulation and morphine (10 mg/kg, intraperitoneally) was given once every other day. Naloxone (0.3 mg/kg, intraperitoneally) was injected at 30 minutes prior to EA. Mechanical allodynia were demonstrated by paw withdrawal thresholds (PWTs) which measured by dynamic plantar aesthesiometer. T cell proliferation, percentage of CD3+, CD4+ and CD8+ T lymphocytes in spleen as well as expression of interleukin-2 (IL-2) in plasma were detected by WST-8, flow cytometry, and enzyme-linked immunosorbent assay technique, respectively. Results: An intratibial inoculation of Walker 256 mammary gland carcinoma cells significantly decreased PWTs to mechanical stimuli. EA stimulation alleviated mechanical allodynia in BCP rats, and the analgesic potency of EA was weaker than that of morphine. In contrast to morphine, EA stimulation of BCP rats increased splenic concanavalin A (Con A)-induced T cell proliferation and plasma IL-2 content, as well as increased the percentages of splenic CD3+CD4+ and CD3+CD8+ T cell subsets. Moreover, both the analgesic effect and the partial immunomodulation of EA were suppressed by an intraperitoneal injection of naloxone. Conclusion: EA could significantly alleviate BCP-induced mechanical allodynia. Although the analgesic effect of EA was weaker than that of morphine, EA had an immunomodulation effect on cellular immunity. Both analgesic and immunomodulatory effect of EA might share the same mechanism via the opioid-mediated pathway, which needs further investigation.
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Affiliation(s)
- Yi Liang
- 1 The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China.,2 The Third Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jun-Ying Du
- 1 The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jun-Fan Fang
- 1 The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Ruo-Yi Fang
- 1 The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jie Zhou
- 2 The Third Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiao-Mei Shao
- 1 The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yong-Liang Jiang
- 1 The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yi-Tian Chen
- 1 The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jian-Qiao Fang
- 1 The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
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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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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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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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Chen SJ, Zhang QB, Zeng LJ, Lian GD, Li JJ, Qian CC, Chen YZ, Chen YT, Huang KH. Distribution and clinical significance of tumour-associated macrophages in pancreatic ductal adenocarcinoma: a retrospective analysis in China. ACTA ACUST UNITED AC 2015; 22:e11-9. [PMID: 25684992 DOI: 10.3747/co.22.2150] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND We aimed to characterize the localization and prognostic significance of tumour-associated macrophages (tams) in pancreatic ductal adenocarcinoma (pdac). METHODS Tumour specimens from 70 patients with pdac and inflammatory specimens from 13 patients with chronic pancreatitis were collected and analyzed for tam and M2 macrophage counts by immunohistochemistry. Correlations between tam distributions and clinicopathologic features were determined. RESULTS Immunohistochemical analysis showed that tam and M2 macrophage counts were higher in tissues from pdac than from chronic pancreatitis. The tams and M2 macrophages both infiltrated more into peritumour. Both macrophage types were positively associated with lymph node metastasis (p = 0.041 for tams in peritumour, p = 0.013 for M2 macrophages in introtumour, p = 0.006 for M2 macrophage in peritumour). In addition, abdominal pain was significantly more frequent in pdac patients with a greater tams count. The survival rate was much lower in patients having high infiltration by M2 macrophages than in those having low infiltration. CONCLUSIONS The tam count might be associated with neural invasion in pdac, and M2 macrophages might play an important role in lymph node metastasis. Higher counts of either macrophage type were associated with increased risk of lymph node metastasis, and the M2 macrophage count could potentially be a marker for evaluating prognosis.
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Affiliation(s)
- S J Chen
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, PR China. ; Department of Gastroenterology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, PR China
| | - Q B Zhang
- Department of Gastroenterology, Lihuili Hospital of Ningbo Medical Center, Ningbo, PR China
| | - L J Zeng
- Department of Oncology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, PR China
| | - G D Lian
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, PR China. ; Department of Gastroenterology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, PR China
| | - J J Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, PR China. ; Department of Gastroenterology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, PR China
| | - C C Qian
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, PR China. ; Department of Gastroenterology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, PR China
| | - Y Z Chen
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, PR China. ; Department of Gastroenterology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, PR China
| | - Y T Chen
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, PR China. ; Department of Gastroenterology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, PR China
| | - K H Huang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, PR China. ; Department of Gastroenterology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, PR China
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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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Huang JY, Cui SY, Chen YT, Song HZ, Huang GC, Feng B, Sun M, De W, Wang R, Chen LB. MicroRNA-650 was a prognostic factor in human lung adenocarcinoma and confers the docetaxel chemoresistance of lung adenocarcinoma cells via regulating Bcl-2/Bax expression. PLoS One 2013; 8:e72615. [PMID: 23991130 PMCID: PMC3749147 DOI: 10.1371/journal.pone.0072615] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Accepted: 07/12/2013] [Indexed: 11/18/2022] Open
Abstract
Increasing evidence shows that dysregulation of microRNAs (miRNAs) is involved in malignant transformation. We investigated the clinical significance of miR-650 and its involvement in chemoresistance to docetaxel. Our results showed that the relative expression level of miR-650 was significantly higher in LAD tissues than in corresponding nontumor tissues and high level of miR-650 expression was found to be significantly associated with high incidence of lymph node metastasis, advanced clinical stage and poor prognosis of LAD patients. Univariate and multivariate analyses indicated that high miR-650 expression was an independent prognostic factor for survival. Also, we found that the level of miR-650 in LAD tissues was correlated with the response of patients to docetaxel-based chemotherapy. Silencing of miR-650 could increase the in vitro sensitivity of docetaxel-resistant LAD cells to docetaxel, while upregulation of miR-650 decreased the sensitivity of parental LAD cells to docetaxel both in vitro and in vivo. Additionally, silencing of miR-650 could enhance the caspase-3-dependent apoptosis, which might be correlated with the decreased ratio of Bcl-2/Bax. Further researches suggested that inhibitor of growth 4 (ING4) was a direct target of miR-650. Downregulated or upregulated ING4 expression could partially rescue the effects of miR-650 inhibitor or mimics in docetaxel-resistant or parental LAD cells. Furthermore, we found that ING4 was upregulated in docetaxel-responding LAD tissues, and its expression was inversely correlated with miR-650. Thus, miR-650 is a novel prognostic marker in LAD and its expression is a potential indicator of chemosensitivity to docetaxel-based chemotherapy regimen.
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Affiliation(s)
- Jia-Yuan Huang
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, P. R. China
| | - Shi-Yun Cui
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, P. R. China
| | - Yi-Tian Chen
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, P. R. China
| | - Hai-Zhu Song
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, P. R. China
| | - Gui-Chun Huang
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, P. R. China
| | - Bing Feng
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, P. R. China
| | - Ming Sun
- Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing, P. R. China
| | - Wei De
- Department of Biochemistry and Molecular Biology, Nanjing Medical University, Nanjing, P. R. China
| | - Rui Wang
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, P. R. China
- * E-mail: (LBC)E-mail: (RW)
| | - Long-Bang Chen
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, P. R. China
- * E-mail: (LBC)E-mail: (RW)
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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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Cui SY, Huang JY, Chen YT, Song HZ, Huang GC, De W, Wang R, Chen LB. The role of Aurora A in hypoxia-inducible factor 1α-promoting malignant phenotypes of hepatocelluar carcinoma. Cell Cycle 2013; 12:2849-66. [PMID: 23966163 DOI: 10.4161/cc.25916] [Citation(s) in RCA: 28] [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] [Indexed: 12/14/2022] Open
Abstract
Overexpression of both hypoxia-inducible factor 1α (HIF-1α) and Aurora A has been found in hepatocellular carcinoma (HCC). However, whether HIF-1α and Aurora A synergistically promote malignant phenotypes of HCC cells is unknown. The purpose of this study was to investigate the roles and functional correlation of HIF-1α and Aurora A in HCC progression. Immunohistochemistry was performed to detect HIF-1α and Aurora A protein expression in 55 primary HCC and corresponding non-tumor tissues and their clinical significance. Gene knockout technology using short hairpin RNA (shRNA) was used to knockdown expression of HIF-1α or Aurora A and analyze their effects on malignant phenotypes of HCC cells. The transcriptional regulation of Aurora A by HIF-1α and the possible downstream molecular signaling pathways were also determined. Results showed that hypoxia could induce the increased expression of HIF-1α and Aurora A in HCC cells. Also, shRNA-mediated HIF-1α downregulation could lead to the decreased Aurora A expression and inhibition of growth or invasion in HCC cells. Moreover, HIF-1α could transcriptionally regulate Aurora A expression by binding to hypoxia-responsive elements in the Aurora A promoter and recruiting the coactivator-p300/CBP. Additionally, shRNA-mediated Aurora A knockdown could mimic the effects of HIF-1α downregulation on phenotypes of HCC cells, and overexpression of Aurora A could partially rescue the phenotypical changes of HCC cells induced by HIF-1α downregulation. Further research indicated that activation of Akt and p38-MAPK signaling pathways mediated the downstream effects of HIF-1α and Aurora A in HCC cells under hypoxic condition. Taken together, our findings indicated that Aurora A might be a key regulator of HIF-1α-promoting malignant phenotypes of HCC by activation of Akt and p38-MAPK signaling pathways.
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Affiliation(s)
- Shi-Yun Cui
- Department of Medical Oncology; Jinling Hospital; School of Medicine; Nanjing University; Nanjing, PR China
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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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Abstract
Small cell lung cancer (SCLC) is characterized by a short cell doubling time, rapid progression and early occurrence of blood-borne and lymph metastasis. The malignancy is the highest of all lung cancer types. Although SCLC has a relatively good initial response to chemotherapy as well as radiotherapy, relapse or disease progression may occur quickly after the initial treatment. Drug resistance, especially multi-drug resistance, is the most important cause of failure of SCLC chemotherapy. This article provides a brief update of research on mechanisms of drug resistance in SCLC and reversal strategies.
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Affiliation(s)
- Yi-Tian Chen
- Department of Medical Oncology, Jinling Hospital, Nanjing, China
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Cui SY, Huang JY, Chen YT, Song HZ, Feng B, Huang GC, Wang R, Chen LB, De W. Let-7c governs the acquisition of chemo- or radioresistance and epithelial-to-mesenchymal transition phenotypes in docetaxel-resistant lung adenocarcinoma. Mol Cancer Res 2013; 11:699-713. [PMID: 23562878 DOI: 10.1158/1541-7786.mcr-13-0019-t] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
MicroRNA (miRNA) expression and functions have been reported to contribute to phenotypic features of tumor cells. Although targets and functional roles for many miRNAs have been described in lung adenocarcinoma (LAD), their pathophysiologic roles in phenotypes of chemoresistant LAD cells are still largely unclear. Previously, docetaxel (DTX)-resistant LAD cell lines (SPC-A1/DTX and H1299/DTX) were established by our laboratory and displayed chemo- or radioresistance and mesenchymal features with enhanced invasiveness and motility. Unbiased miRNA profiling indicated that let-7c (MIRLET7C) was significantly downregulated in SPC-A1/DTX cells. Ectopic let-7c expression increased the in vitro and in vivo chemo- or radiosensitivity of DTX-resistant LAD cells through enhanced apoptosis, reversal of epithelial-to-mesenchymal phenotypes, and inhibition of in vivo metastatic potential via inactivation of Akt phosphorylation, whereas a let-7c inhibitor decreased the chemo- or radiosensitivity of parental cells. Further investigation suggested that let-7c significantly reduced the luciferase activity of a Bcl-xL 3'-UTR-based reporter, concordant with reduced Bcl-xL protein levels. Additionally, siRNA-mediated Bcl-xL knockdown mimicked the same effects of let-7c precursor, and enforced Bcl-xL expression partially rescued the effects of let-7c precursor in DTX-resistant LAD cells. Furthermore, we found that Bcl-xL was significantly upregulated in DTX-nonresponding LAD tissues, and its expression was inversely correlated with let-7c expression. This study suggests an important role for let-7c in the molecular etiology of chemoresistant lung adenocarcinoma.
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Affiliation(s)
- Shi-Yun Cui
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, 315 Zhongshan East Road, Nanjing, Jiangsu 210002, PR China
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Lu XX, Chen YT, Feng B, Mao XB, Yu B, Chu XY. Expression and clinical significance of CD73 and hypoxia-inducible factor-1α in gastric carcinoma. World J Gastroenterol 2013; 19:1912-1918. [PMID: 23569336 PMCID: PMC3613106 DOI: 10.3748/wjg.v19.i12.1912] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2012] [Accepted: 09/28/2012] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the expression of CD73 and hypoxia-inducible factor-1α (HIF-1α) in human gastric carcinoma, and explore their clinical significance and prognostic value.
METHODS: CD73 and HIF-1α expressions were detected by immunohistochemistry in consecutive sections of tissue samples from 68 gastric carcinoma patients. The peritumor tissues 2 cm away from the tumor were obtained and served as controls. The presence of CD73 and HIF-1α was analyzed by immunohistochemistry using the Envision technique.
RESULTS: CD73 and HIF-1α expressions in gastric carcinoma were significantly higher than those in gastric mucosal tissues as control (P < 0.001) and showed a close correlation (Spearman r = 0.390, P = 0.001). Overexpression of CD73 was positively correlated with differentiation of tumor (P = 0.000), histopathology (P = 0.041), depth of invasion (P < 0.001), nodal status (P = 0.003), metastasis (P = 0.013), and the American Joint Committee on Cancer (AJCC) stage (P < 0.001). High expression of HIF-1α was positively correlated with tumor diameter (P = 0.031), depth of invasion (P = 0.022), and AJCC stage (P = 0.035). The overall survival rate was low in the patients with high expression of CD73 (P < 0.001). Moreover, CD73+/HIF-1α+ patients had the worst prognosis (P < 0.001). CD73 expression was proven to be an independent predictor for patients with gastric carcinoma by both multivariate Cox regression analysis (P = 0.021) and receiver operating characteristic curves (P = 0.001).
CONCLUSION: CD73 expression correlates closely with HIF-1α expression in gastric carcinoma. CD73 could be an independent prognostic indicator for gastric carcinoma.
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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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