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Ge LL, Chen CF, Liu L, Zheng X, Zhang XM, Zhang YD, Mei SY. [Analysis of clinical and genetic variation in neonatal intrahepatic cholestasis caused by citrin deficiency]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:1081-1086. [PMID: 38016774 DOI: 10.3760/cma.j.cn501113-20220624-00345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
Objective: To investigate the clinical phenotype and gene variation conditions in neonatal intrahepatic cholestasis caused by citrin deficiency (NICCD), so as to provide a basis for genetic counseling and clinical diagnosis and treatment of the family. Methods: 11 cases of neonatal intrahepatic cholestasis who visited the Children's Hospital Affiliated to Zhengzhou University between February 2019 and March 2021 were selected as the study subjects. High-throughput sequencing technology was used to detect the gene variation condition in 11 neonatal patients and 100 normal control neonates. The suspicious loci and family members were verified by Sanger sequencing and QPCR technology. Results: All 11 children with NICCD had different degrees of jaundice and liver damage symptoms, combined with coagulation dysfunction and anemia (n = 7), cardiac malformation (n = 2), elevated myocardial enzymes (n = 4), hyperlipidemia (n = 1), hyperkalemia (n = 1), persistent diarrhea (n = 3), developmental delay (n = 1). A total of 10 different types of SLC25A13 gene mutations were detected in 11 cases, including three frameshift mutations, two splicing changes, two missense mutations, one intron insertion, one nonsense mutation, and one heterozygous deletion. After reviewing literature and databases, c.1878delG(p.I627Sfs*73) and exon11 deletion were novel mutations that had not been reported at home or abroad. Conclusion: The clinical features of NICCD are non-specific, and genetic testing aids in the early and accurate diagnosis of the disease, providing an important basis for clinical treatment and genetic counseling for family members. In addition, the detection of novel mutation sites has enriched the SLC25A13 gene variation spectrum.
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Affiliation(s)
- L L Ge
- Henan Key Laboratory of Children's Genetics and Metabolic Diseases, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450018, China
| | - C F Chen
- Henan Key Laboratory of Children's Genetics and Metabolic Diseases, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450018, China
| | - L Liu
- Henan Key Laboratory of Children's Genetics and Metabolic Diseases, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450018, China
| | - X Zheng
- Henan Key Laboratory of Children's Genetics and Metabolic Diseases, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450018, China
| | - X M Zhang
- Henan Key Laboratory of Children's Genetics and Metabolic Diseases, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450018, China
| | - Y D Zhang
- Henan Key Laboratory of Children's Genetics and Metabolic Diseases, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450018, China
| | - S Y Mei
- Henan Key Laboratory of Children's Genetics and Metabolic Diseases, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450018, China
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Chen CF, Zhang XM, Zhu RL, Zou HB, Li BB, Li LF, Lin ZX, Yu ZJ, Chen WY. [Efficacy of relocation and expansion pharyngoplasty by suspension sutures in the treatment of OSAHS with soft palate oropharyngeal obstruction]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2021; 56:1270-1276. [PMID: 34963214 DOI: 10.3760/cma.j.cn115330-20210707-00436] [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: 06/14/2023]
Abstract
Objective: To explore the efficacy of relocation and expansion pharyngoplasty by suspension sutures in the treatment of obstructive sleep apnea hypopnea syndrome (OSAHS). Methods: Seventy-three patients(including 60 males and 13 females) with OSAHS admitted to the department of otorhinolaryngology of our hospital in recent two years were retrospectively analyzed. All the patients had velopharyngeal obstructionevaluated by electronic endoscopic Müller test and were divided into control group (34 cases) and observation group (39 cases). The patients in the control group were performed modified uvulopalatopharyngoplasty, while those in the observation group were performed relocation and expansion pharyngoplasty by suspension sutures.The scores of ESS, AHI and LSaO2 before and after treatment were collected and compared. Results: The total effective rate of the observation group was 94.87%, which was significantly higher than 79.41% of the control group. The AHI was lower and LSaO2 value was higher (χ2=-1. 896,-1. 968,P<0.05)in the observation group. The sleeping symptoms and quality of life of the two groups were significantly improved. The ESS score of the observation group was decreased more significantly than that of the control group after treatment, and the difference was statistically significant (χ2=-1.451,P<0.05). The incidence of foreign body sensation in pharynx of the observation group (89.74%) was higher than that of the control group (55.88%), and the postoperative bleeding and postoperative recurrence rate (0.00%, 2.56%) was lower than that of the control group (8.82%, 14.70%)with statistical significance (χ2=4.738,4.249,4.119,P<0.05).The incidence of transient nasopharyngeal reflux in both groups was low and statistically insignificant (χ2=0.629,P>0.05). Conclusions: Preoperative strict screening of indications plays an important role in the selection of palatopharyngeal surgery methods and curative effect. Relocation and expansion pharyngoplasty by suspension sutures can improve the clinical efficacy of OSAHS with better safety and less recurrence.
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Affiliation(s)
- C F Chen
- Guangdong Provincial Hospital of Traditional Chinese Medicine,Otorhinolaryngology & Head and Neck Department,Guangzhou 510120,China
| | - X M Zhang
- Foresea Insurance Guangzhou General Hospital,Otorhinolaryngology & Head and Neck Surgery Department,Guangzhou 511340,China
| | - R L Zhu
- Guangdong Provincial Hospital of Traditional Chinese Medicine,Otorhinolaryngology & Head and Neck Department,Guangzhou 510120,China
| | - H B Zou
- Guangdong Provincial Hospital of Traditional Chinese Medicine,Otorhinolaryngology & Head and Neck Department,Guangzhou 510120,China
| | - B B Li
- Guangdong Provincial Hospital of Traditional Chinese Medicine,Otorhinolaryngology & Head and Neck Department,Guangzhou 510120,China
| | - L F Li
- Guangdong Provincial Hospital of Traditional Chinese Medicine,Otorhinolaryngology & Head and Neck Department,Guangzhou 510120,China
| | - Z X Lin
- Guangdong Provincial Hospital of Traditional Chinese Medicine,Otorhinolaryngology & Head and Neck Department,Guangzhou 510120,China
| | - Z J Yu
- Guangdong Provincial Hospital of Traditional Chinese Medicine,Otorhinolaryngology & Head and Neck Department,Guangzhou 510120,China
| | - W Y Chen
- Guangdong Provincial Hospital of Traditional Chinese Medicine,Otorhinolaryngology & Head and Neck Department,Guangzhou 510120,China
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Yao YF, Feng J, Liu J, Chen CF, Yu B, Hu XP. Disseminated infection by Fusarium solani in acute lymphocytic leukemia: A case report. World J Clin Cases 2021; 9:6443-6449. [PMID: 34435010 PMCID: PMC8362567 DOI: 10.12998/wjcc.v9.i22.6443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 05/07/2021] [Accepted: 05/25/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND In recent years, the rate of immunosuppressed patients has increased rapidly. Invasive fungal infections usually occur in these patients, especially those who have had hematological malignances and received chemotherapy. Fusariosis is a rare pathogenic fungus, it can lead to severely invasive Fusarium infections. Along with the increased rate of immune compromised patients, the incidence of invasive Fusarium infections has also increased from the past few years. Early diagnosis and therapy are important to prevent further development to a more aggressive or disseminated infection.
CASE SUMMARY We report a case of a 19-year-old male acute B-lymphocytic leukemia patient with fungal infection in the skin, eyeball, and knee joint during the course of chemotherapy. We performed skin biopsy, microbial cultivation, and molecular biological identification, and the pathogenic fungus was finally confirmed to be Fusarium solani. The patient was treated with oral 200 mg voriconazole twice daily intravenous administration of 100 mg liposomal amphotericin B once daily, and surgical debridement. Granulocyte colony-stimulating factor was administered to expedite neutrophil recovery. The disseminated Fusarium solani infection eventually resolved, and there was no recurrence at the 3 mo follow-up.
CONCLUSION Our case illustrates the early detection and successful intervention of a systemic invasive Fusarium infection. These are important to prevent progression to a more aggressive infection. Disseminate Fusarium infection requires the systemic use of antifungal agents and immunotherapy. Localized infection likely benefits from surgical debridement and the use of topical antifungal agents.
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Affiliation(s)
- Yu-Fang Yao
- Department of Dermatology & Venereology, Peking University Shenzhen Hospital, Shenzhen 518036, Guangdong Province, China
| | - Jia Feng
- Department of Hematology, Peking University Shenzhen Hospital, Shenzhen 518036, Guangdong Province, China
| | - Jie Liu
- Department of Dermatology & Venereology, Peking University Shenzhen Hospital, Shenzhen 518036, Guangdong Province, China
| | - Chao-Feng Chen
- Department of Dermatology & Venereology, Peking University Shenzhen Hospital, Shenzhen 518036, Guangdong Province, China
| | - Bo Yu
- Department of Dermatology & Venereology, Peking University Shenzhen Hospital, Shenzhen 518036, Guangdong Province, China
| | - Xiao-Ping Hu
- Department of Dermatology & Venereology, Peking University Shenzhen Hospital, Shenzhen 518036, Guangdong Province, China
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Liu MJ, Chen CF, Gao XF, Liu XH, Xu YZ. Impact of periprocedural myocardial injury on long-term clinical outcomes of chronic total occlusion patients undergoing percutaneous coronary intervention: a systematic review and meta-analysis. Coron Artery Dis 2021; 31:208-214. [PMID: 31703014 PMCID: PMC7147396 DOI: 10.1097/mca.0000000000000813] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Background: Several studies have evaluated the long-term clinical outcomes of periprocedural myocardial injury for chronic total occlusions patients. However, the results of these studies were inconsistent. To determine whether the periprocedural myocardial injury has adverse effects on long-term clinical outcomes in chronic total occlusion patients undergoing percutaneous coronary intervention. Methods: We searched Cochrane Library, PubMed, and Embase for eligible articles from their date of inception up to March 2019. Long-term clinical outcomes included major adverse cardiac events, all-cause death, cardiac death, myocardial infarction, and target vessel revascularization. Odds ratios with 95% confidence intervals were calculated as summary statistics by using Review Manager software. Results: A total of 8 observational studies involving 5879 chronic total occlusions patients were included in this meta-analysis. These results of this meta-analysis indicated that periprocedural myocardial injury was associated with a higher risk of major adverse cardiac events (odds ratio, 1.94; 95% confidence interval, 1.22–3.08; P = 0.005), a higher risk of all-cause death (odds ratio, 1.30; 95% confidence interval, 1.02–1.64; P = 0.03), a higher risk of cardiac death (odds ratio, 2.59; 95% confidence interval, 1.41–4.78; P = 0.002), a higher risk of myocardial infarction (odds ratio, 3.07; 95% confidence interval, 1.90–4.98; P < 0.00001), and a higher risk of target vessel revascularization (odds ratio, 2.07; 95% confidence interval, 1.35–3.16; P=0.0008) than non-periprocedural myocardial injury. Conclusion: Periprocedural myocardial injury was associated with significantly increased risk of major adverse cardiac events, all-cause death, cardiac death, myocardial infarction, and target vessel revascularization in chronic total occlusion patients undergoing percutaneous coronary intervention at long-term follow-up.
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Affiliation(s)
- Mei-Jun Liu
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
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Li MF, Wu J, Jin CL, Chen CF, Xu YZ. Safety and efficacy of high power shorter duration ablation for atrial fibrillation: A systematic review and meta-analysis. Int J Clin Pract 2021; 75:e13732. [PMID: 32975347 DOI: 10.1111/ijcp.13732] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 09/18/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Radiofrequency ablation in patients with atrial fibrillation (AF) is effective but hampered by pulmonary veins reconnection because of insufficient lesions. High power shorter duration ablation (HPSD) was seen to increase efficacy and safety. This analysis aimed to evaluate the clinical benefits of HPSD in patients with AF. METHODS The Medline, PubMed, Embase, and the Cochrane Library databases were searched for studies comparing HPSD and Low power longer duration (LPLD) ablation. RESULTS A total of seven trials with 2023 patients were included in the analysis. Pooled analyses demonstrated that HPSD showed a benefit of first-pass pulmonary vein isolation (PVI) [risk ratio (RR): 1.27; 95% confidence interval (CI): 1.18-1.37, P < .001]. HPSD could reduce recurrence of atrial arrhythmias (RR: 0.70; 95% CI: 0.50-0.98, P = .04). Additionally, HPSD was more beneficial in terms of procedural time [Weighted Mean Difference, (WMD): -44.62; 95% CI, -63.00 to -26.23, P < .001], ablation time (WMD: -21.25; 95% CI: -25.36 to -17.13, P < .001), and fluoroscopy time (WMD: -4.13; 95% CI: -7.52 to -0.74, P < .001). Moreover, major complications and esophageal thermal injury (ETI) were similar between two groups (RR: 0.75; 95% CI: 0.44-1.30, P = .31) and (RR: 0.64; 95% CI: 0.17-2.39, P = .51). CONCLUSION HPSD was safe and efficient for treating AF with clear advantages of procedural features, it also showed benefits of higher first-pass PVI and reducing recurrence of atrial arrhythmias compared with the LPLD. Moreover, major complications and ETI were similar between two groups.
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Affiliation(s)
- Miao-Fu Li
- Nanjing Medical University Affiliated Hangzhou First People's Hospital, Nanjing, Jiangshu Province, China
| | - Jing Wu
- Department of Cardiology, Hangzhou First People's Hospital, Hangzhou, Zhejiang Province, China
| | - Chao-Lun Jin
- Nanjing Medical University Affiliated Hangzhou First People's Hospital, Nanjing, Jiangshu Province, China
| | - Chao-Feng Chen
- Department of Cardiology, Hangzhou First People's Hospital, Hangzhou, Zhejiang Province, China
| | - Yi-Zhou Xu
- Nanjing Medical University Affiliated Hangzhou First People's Hospital, Nanjing, Jiangshu Province, China
- Department of Cardiology, Hangzhou First People's Hospital, Hangzhou, Zhejiang Province, China
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Chen CF, Liu J, Wang SS, Yao YF, Yu B, Hu XP. Mycobacterium abscessus infection after facial injection of argireline: A case report. World J Clin Cases 2021; 9:1996-2000. [PMID: 33748252 PMCID: PMC7953399 DOI: 10.12998/wjcc.v9.i8.1996] [Citation(s) in RCA: 3] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/14/2020] [Accepted: 01/15/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The incidence of infection with Mycobacterium abscessus (M. abscessus) has increased in recent years. This increase is partly associated with invasive cosmetic procedures.
CASE SUMMARY The purpose of this case summary is to increase clinicians' awareness of M. abscessus infection and reduce mycobacterial infection caused by cosmetic procedures. We report the case of a 45-year-old woman who received acetyl hexapeptide-8 (argireline) injections in the forehead and temples, and erythema, nodules, and abscesses appeared at the injection sites after one week. The pus specimens were examined by microbiological culture and confirmed to be positive for M. abscessus. Clarithromycin 500 mg twice daily and moxifloxacin 400 mg once daily were administered for 5 mo and the lesions gradually subsided.
CONCLUSION We report here for the first time a case of infection with M. abscessus after argireline injection. This condition is easily misdiagnosed as a common bacterial infection. Microbiological examinations are helpful for diagnosis and standardized cosmetic procedures can prevent infection with M. abscessus.
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Affiliation(s)
- Chao-Feng Chen
- Department of Dermatology & Venereology, Peking University Shenzhen Hospital, Shenzhen 518036, Guangdong Province, China
| | - Jie Liu
- Department of Dermatology & Venereology, Peking University Shenzhen Hospital, Shenzhen 518036, Guangdong Province, China
| | - Shuang-Shuang Wang
- Department of Dermatology & Venereology, Peking University Shenzhen Hospital, Shenzhen 518036, Guangdong Province, China
| | - Yu-Fang Yao
- Department of Dermatology & Venereology, Peking University Shenzhen Hospital, Shenzhen 518036, Guangdong Province, China
| | - Bo Yu
- Department of Dermatology & Venereology, Peking University Shenzhen Hospital, Shenzhen 518036, Guangdong Province, China
| | - Xiao-Ping Hu
- Department of Dermatology & Venereology, Peking University Shenzhen Hospital, Shenzhen 518036, Guangdong Province, China
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Chen CF, Wu J, Jin CL, Liu MJ, Xu YZ. Comparison of high-power short-duration and low-power long-duration radiofrequency ablation for treating atrial fibrillation: Systematic review and meta-analysis. Clin Cardiol 2020; 43:1631-1640. [PMID: 33107625 PMCID: PMC7724222 DOI: 10.1002/clc.23493] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 10/13/2020] [Accepted: 10/15/2020] [Indexed: 12/30/2022] Open
Abstract
Background High power shorter duration (HPSD) ablation seen to increase efficacy and safety treating of atrial fibrillation (AF); however, comparative data between HPSD and low power longer duration (LPLD) ablation are limited. Hypothesis We thought that HPSD might bring more clinical benefits. The aim of this meta‐analysis was to evaluate the clinical benefits of HPSD in patients with AF. Methods The Medline, PubMed, Embase, and the Cochrane Library databases were searched for studies comparing HPSD and LPLD ablation. Results Ten trials with 2467 patients were included in the analysis. Pooled analyses demonstrated that HPSD showed a benefit of first‐pass pulmonary vein isolation (PVI) (risk ratio [RR]: 1.20; 95% confidence interval [CI]: 1.10‐1.31, P < .001) and recurrence of atrial arrhythmias (RR: 0.73; 95% CI: 0.58‐0.91, P = .005). Additionally, HPSD could reduce procedural time (weighted mean difference [WMD]: −42.93; 95% CI, −58.10 to −27.75, P < .001), ablation time (WMD: −21.01; 95% CI: −24.55 to −17.47, P < .001), and fluoroscopy time (WMD: −4.11; 95% CI: −6.78 to −1.45, P < .001). Moreover, major complications and esophageal thermal injury (ETI) were similar between two groups (RR: 0.75; 95% CI: 0.44‐1.30, P = .31) and (RR: 0.57; 95% CI: 0.21‐1.51, P = .26). Conclusions HPSD was safe and efficient for treating AF. Compared with LPLD, HPSD was associated with advantages of procedural features, higher first‐pass PVI and reducing recurrence of atrial arrhythmias. Moreover, major complications and ETI were similar between two groups.
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Affiliation(s)
- Chao-Feng Chen
- Department of Cardiology, Hangzhou First People's Hospital, Hangzhou, Zhejiang, China
| | - Jing Wu
- Department of Cardiology, Hangzhou First People's Hospital, Hangzhou, Zhejiang, China
| | - Chao-Lun Jin
- Department of Cardiology, Nanjing Medical University, Nanjing, Jiangshu, China
| | - Mei-Jun Liu
- Department of Cardiology, Hangzhou First People's Hospital, Hangzhou, Zhejiang, China
| | - Yi-Zhou Xu
- Department of Cardiology, Hangzhou First People's Hospital, Hangzhou, Zhejiang, China.,Department of Cardiology, Nanjing Medical University, Nanjing, Jiangshu, China
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Liu J, Xin WQ, Liu LT, Chen CF, Wu L, Hu XP. Majocchi's granuloma caused by Trichophyton rubrum after facial injection with hyaluronic acid: A case report. World J Clin Cases 2020; 8:3853-3858. [PMID: 32953864 PMCID: PMC7479567 DOI: 10.12998/wjcc.v8.i17.3853] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 07/02/2020] [Accepted: 07/30/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Facial cosmetic procedures become popular for people with a desire to have a younger appearance, and cosmetic technology has developed rapidly over the past several decades. However, increasing complications related to cosmetic injections have been reported, and infection is one of the most serious problems and can cause anxiety and facial injury. We here report a case of Majocchi's granuloma (MG) caused by Trichophyton rubrum after facial injection of hyaluronic acid.
CASE SUMMARY A 37-year-old woman presented to our hospital with a history of red papules, nodules, and abscesses on her left zygomatic arch for 2 mo. She had received a cosmetic injection of hyaluronic acid on the left side of her face prior to the appearance of the lesions. MG caused by Trichophyton rubrum after facial injection of hyaluronic acid was diagnosed based on morphology and molecular biological identification. In vitro antifungal susceptibility testing was conducted according to the Clinical and Laboratory Standards Institute M38-A2 method. Minimal inhibitory concentrations were used to evaluate the antifungal susceptibility. The antifungal agents and their minimal inhibitory concentrations for the strain were terbinafine (< 0.5 μg/mL), itraconazole (0.06 μg/mL), amphotericin B (0.25 μg/mL), fluconazole (32 μg/mL), voriconazole (0.125 μg/mL), posaconazole (0.125 μg/mL), and isavuconazole (0.06 μg/mL). We initially administered 250 mg/d oral terbinafine for 2 mo, but the patient still had painful papules, nodules and abscesses on her face. Then, we adjusted the treatment to itraconazole 400 mg/d for 8 wk based on the in vitro antifungal susceptibility testing results. The skin lesions improved significantly, and there was no recurrence during follow-up.
CONCLUSION This case revealed that facial injection of hyaluronic acid may cause serious MG. Antifungal susceptibility testing should be considered in the treatment of MG caused by Trichophyton rubrum.
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Affiliation(s)
- Jie Liu
- Department of Dermatology, Skin Research Institute of Peking University Shenzhen Hospital, Peking University Shenzhen Hospital, Shenzhen 518036, Guangdong Province, China
| | - Wen-Qiang Xin
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Lan-Ting Liu
- Department of Dermatology, Skin Research Institute of Peking University Shenzhen Hospital, Peking University Shenzhen Hospital, Shenzhen 518036, Guangdong Province, China
| | - Chao-Feng Chen
- Department of Dermatology, Skin Research Institute of Peking University Shenzhen Hospital, Peking University Shenzhen Hospital, Shenzhen 518036, Guangdong Province, China
| | - Lin Wu
- Department of Dermatology, Skin Research Institute of Peking University Shenzhen Hospital, Peking University Shenzhen Hospital, Shenzhen 518036, Guangdong Province, China
| | - Xiao-Ping Hu
- Department of Dermatology, Skin Research Institute of Peking University Shenzhen Hospital, Peking University Shenzhen Hospital, Shenzhen 518036, Guangdong Province, China
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Wang YB, Mao HH, Chen XQ, Chen CF. Oblique coronal view through oral fissure on two-dimensional grayscale and color Doppler ultrasound: diagnostic value for fetal cleft palate. Ultrasound Obstet Gynecol 2020; 56:287-288. [PMID: 31671475 DOI: 10.1002/uog.21906] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 10/05/2019] [Accepted: 10/17/2019] [Indexed: 06/10/2023]
Affiliation(s)
- Y B Wang
- Department of Medical Ultrasound, Xiangya Hospital, Central South University, Changsha, China
| | - H H Mao
- Department of Medical Ultrasound, The Affiliated Zhuzhou Hospital Xiangya Medical College CSU, Central South University, Zhuzhou, China
| | - X Q Chen
- Department of Medical Ultrasound, The Affiliated Zhuzhou Hospital Xiangya Medical College CSU, Central South University, Zhuzhou, China
| | - C F Chen
- Department of Medical Ultrasound, The Affiliated Zhuzhou Hospital Xiangya Medical College CSU, Central South University, Zhuzhou, China
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Liu MJ, Chen CF, Gao XF, Liu XH, Xu YZ. In-hospital outcomes of chronic total occlusion percutaneous coronary intervention in patients with and without prior coronary artery bypass graft: A protocol for systematic review and meta analysis. Medicine (Baltimore) 2020; 99:e19977. [PMID: 32501965 PMCID: PMC7306325 DOI: 10.1097/md.0000000000019977] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 03/04/2020] [Accepted: 03/21/2020] [Indexed: 12/29/2022] Open
Abstract
The clinical outcomes of chronic total occlusion (CTO) percutaneous coronary intervention (PCI) in prior coronary artery bypass graft (pCABG) patients have been investigated; however, the results are inconsistent.The present meta-analysis compared the clinical outcomes of CTO PCI in patients with and without prior CABG (nCABG). The endpoints included technical success, procedural success, all-cause mortality, myocardial infarction (MI), major bleeding, coronary perforation, pericardial tamponade, emergency CABG, and vascular access complication.A total of 7 studies comprising of 11099 patients were included in this meta-analysis. The results showed that compared to nCABG patents, pCABG patients were associated with lower technical success (82.3% versus 87.8%; OR, 0.60; 95% CI, 0.53-0.68; P < .00001; I = 0%) and procedural success (80.4% versus 86.2%; OR, 0.61; 95% CI, 0.53-0.70; P < .00001; I = 10%); a higher risk of all-cause mortality (OR, 2.95; 95% CI, 1.56-5.57; P = 0.0008; I = 0%), MI (OR, 2.30; 95% CI, 1.40-3.80; P = .001; I = 5%), and coronary perforation (OR, 2.16; 95% CI, 1.51-3.08; P < 0.0001; I = 52%). On the other hand, the risk of pericardial tamponade (OR, 0.42; 95% CI, 0.15-1.18; P = .10; I = 21%), major bleeding (OR, 1.51; 95% CI, 0.90-2.53; P = .11; I = 0%), vascular access complication (OR, 1.50; 95% CI, 0.93-2.41; P = .10; I = 0%), and emergency CABG (OR, 0.99; 95% CI, 0.25-3.91; P = .99; I = 0%) was similar in both groups.Compared to nCABG patients, pCABG patients had lower CTO PCI success rates, higher rates of in-hospital mortality, MI, and coronary perforation, and similar risk of pericardial tamponade and vascular complication rates.
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Chen CF, Zhong YG, Jin CL, Gao XF, Liu XH, Xu YZ. Comparing between second-generation cryoballoon vs open-irrigated radiofrequency ablation in elderly patients: Acute and long-term outcomes. Clin Cardiol 2020; 43:500-507. [PMID: 31943264 PMCID: PMC7244300 DOI: 10.1002/clc.23335] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 01/05/2020] [Accepted: 01/08/2020] [Indexed: 02/06/2023] Open
Abstract
Background Limited comparative data are available regarding catheter ablation (CA) of atrial fibrillation (AF) using second‐generation cryoballoon (CB‐2) vs radiofrequency (RF) ablation in elderly patients (>75‐year‐old). Hypothesis CB‐2 ablation may demonstrate different outcomes compared with that using RF ablation for elderly patients with AF. Method Elderly patients with symptomatic drug‐refractory AF were included in the study. Pulmonary vein isolation was performed in all patients. Results A total of 324 elderly patients were included (RF: 176, CB‐2:148) from September 2016 to April 2019. The CB‐2 was associated with shorter procedure time and left atrial dwell time (112.9 ± 11.1 vs 135.1 ± 9.9 minutes, P < .001; 53.7 ± 8.9 vs 65.1.9 ± 9.0 minutes, P < .001), but marked fluoroscopy utilization (22.1 ± 3.3 vs 18.5 ± 3.6 minutes, P < .001). Complications occurred in 3.3% (CB‐2) and 6.2% (RF) of patients with no significant different (P = .307). The length of stay after ablation was shorter, but the costs were higher in the CB‐2 group (1.94 vs 2.53 days, P < .001 and 91 132.6 ± 3723.5 vs 81 149.4 ± 6824.1 CNY, P < .001) compared to the RF group. Additionally, the rate of early recurrence of atrial arrhythmia was lower in the CB‐2 group (14.2 vs 23.3%, P = .047), but the long‐term success rate was similar between two groups. Conclusions CB‐2 is associated with shorter procedure time, left atrial dwell time, and length of stay after ablation, but its costs and fluoroscopy time are greater than the RF group. Moreover, the rate of complications and long‐term success are similar between the two groups.
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Affiliation(s)
- Chao-Feng Chen
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Yi-Gang Zhong
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Chao-Lun Jin
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xiao-Fei Gao
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xiao-Hua Liu
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Yi-Zhou Xu
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
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Chen CF, Liu MJ, Jin CL, Gao XF, Liu XH, Xu YZ. Costs and long-term outcomes following pulmonary vein isolation for atrial fibrillation in elderly patients using second-generation cryoballoon vs. open-irrigated radiofrequency in China. J Interv Card Electrophysiol 2020; 59:557-564. [PMID: 31893337 PMCID: PMC7679317 DOI: 10.1007/s10840-019-00697-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 12/23/2019] [Indexed: 12/21/2022]
Abstract
Purpose Limited comparative data are available regarding catheter ablation (CA) of atrial fibrillation (AF) using second-generation cryoballoon (CB-2) vs. radiofrequency (RF) ablation in elderly patients (> 75 years old). The present study aimed to compare the costs and clinical outcomes in elderly patients using these two strategies. Methods Elderly patients with symptomatic drug-refractory paroxysmal/short-lasting persistent AF were included in the study. Pulmonary vein isolation (PVI) was performed in all patients. Results A total of 324 elderly patients were included (RF,176; CB-2,148) from September 2016 to April 2019. The CB-2 was associated with shorter procedure time and left atrial dwell time (112.9 ± 11.1 vs. 135.1 ± 9.9 min, P < 0.001; 53.7 ± 8.9 vs. 65.1.9 ± 9.0 min, P < 0.001) but marked fluoroscopy utilization (22.1 ± 3.3 vs. 18.5 ± 3.6 min, P < 0.001). Complications occurred in 3.3% (CB-2) and 6.2% (RF) of patients with no significant different (p = 0.307). The length of stay after ablation was shorter, but the costs were higher in the CB-2 group (1.94 vs. 2.53 days, P < 0.001 and 91,132.6 ± 3723.5 vs. 81,149.4 ± 6824.1 CNY, P < 0.001) compared to the RF group. Additionally, the rate of early recurrence of atrial arrhythmia (ERAA) was lower in the CB-2 group (14.2 vs. 23.3%, P = 0.047), but the long-term success rate was similar between two groups. Conclusions CB-2 is associated with shorter procedure time, left atrial dwell time, and length of stay after ablation, as well as lower ERAA, but its costs and fluoroscopy time are greater than the RF group. Moreover, the rate of complications and long-term success is similar between the two groups.
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Affiliation(s)
- Chao-Feng Chen
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, #261 Huansha Road, Hangzhou, 310000, Zhejiang Province, China
| | - Mei-Jun Liu
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, #261 Huansha Road, Hangzhou, 310000, Zhejiang Province, China
| | - Chao-Lun Jin
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, #261 Huansha Road, Hangzhou, 310000, Zhejiang Province, China
| | - Xiao-Fei Gao
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, #261 Huansha Road, Hangzhou, 310000, Zhejiang Province, China
| | - Xiao-Hua Liu
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, #261 Huansha Road, Hangzhou, 310000, Zhejiang Province, China
| | - Yi-Zhou Xu
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, #261 Huansha Road, Hangzhou, 310000, Zhejiang Province, China.
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Chen CF, Gao XF, Liu MJ, Jin CL, Xu YZ. Safety and efficacy of the ThermoCool SmartTouch SurroundFlow catheter for atrial fibrillation ablation: A meta-analysis. Clin Cardiol 2019; 43:267-274. [PMID: 31743474 PMCID: PMC7068067 DOI: 10.1002/clc.23297] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 11/01/2019] [Accepted: 11/07/2019] [Indexed: 12/22/2022] Open
Abstract
Background The ThermoCool Smarttouch Surroundflow catheter (STSFc) is an advanced catheter, which integrating contact force sensing and surroundflow technology. However, comparative data between STSFc and contact force sensing catheter (Thermocool SmartTouch catheter [STc]) are limited. Hypothesis We thought that STSFc might bring more clinical benefits. The aim of this meta‐analysis was to compare the safety and efficiency between the STSFc and the STc for treatment of atrial fibrillation (AF). Methods The Medline, PubMed, Embase, and Cochrane Library databases were searched for studies comparing STSFc and STc. Results Four trials involving 727 patients were included in the study. Pool‐analyses demonstrated that, as compared STc ablation, STSFc ablation was more beneficial in terms of procedural times (standard mean difference [SMD]: −0.22; 95% confidence interval [CI], −0.37 to −0.07, P = .005) and irrigation fluid volume (SMD: −1.94; 95% CI, −2.65 to −1.22, P < .0001). There was no significant difference between STSFc and STc (risk ratio [RR]: 1.02; 95% CI: 0.86 to 1.21, P = .79) for free from AF. Evidence of complications were low and similar for both groups (RR: 0.83; 95% CI: 0.19‐3.55, P = .80). Additionally, patients administered STSFc ablation tended to have shorter fluoroscopic times (SMD: −0.20; 95% CI, −0.63‐0.23, P = .21). Conclusions STSFc ablation was associated with reducing procedural times and irrigation fluid volume. Further, STSFc ablation tended to shorten fluoroscopic times. Therefore, STSFc ablation would be a better choice for AF patients especially in patients with heart failure.
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Affiliation(s)
- Chao-Feng Chen
- Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, China
| | - Xiao-Fei Gao
- Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, China
| | - Mei-Jun Liu
- Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, China
| | - Chao-Lun Jin
- Nanjing Medical University, Hangzhou City, Zhejiang Province, China
| | - Yi-Zhou Xu
- Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, China
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Liu XH, Gao XF, Jin CL, Chen CF, Chen B, Xu YZ. Cryoballoon versus radiofrequency ablation for persistent atrial fibrillation: a systematic review and meta‑analysis. Kardiol Pol 2019; 78:20-29. [PMID: 31688837 DOI: 10.33963/kp.15048] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Clinical outcomes of catheter ablation for persistent atrial fibrillation (AF) remain discouraging. AIM This meta‑analysis aimed to compare cryoballoon ablation (CBA) with radiofrequency ablation (RFA) for persistent AF. METHODS A systematic search of the PubMed, EMBASE, and Cochrane Library databases was performed for studies comparing the outcomes between CBA and RFA. Seven trials including 934 patients were analyzed. RESULTS There were no differences between groups in terms of freedom from atrial arrhythmia (risk ratio [RR], 1.04; 95% CI, 0.93-1.15; P = 0.52; I2 = 0%), procedural complications (RR, 0.91; 95% CI, 0.52-1.59; P = 0.74; I2 = 0%), atrial fibrillation or atrial tachycardia relapse during the blanking period (RR, 0.73; 95% CI, 0.50-1.06; P = 0.1; I2 = 9%), repeat ablation (RR, 0.74; 95% CI, 0.45-1.21; P = 0.23; I2 = 62%), and vascular complications (RR, 0.98; 95% CI, 0.42-2.27; P = 0.97; I2 = 0%). Cryoballoon ablation increased the incidence of conversion to sinus rhythm during ablation (RR, 1.69; 95% CI, 1.01-2.83; P = 0.046; I2 = 0%) and phrenic nerve palsy (PNP; RR, 3.05; 95% CI, 0.95-9.8; P = 0.06; I2 = 0%), while RFA increased the risk of cardiac tamponade (RR, 0.27; 95% CI, 0.06-1.25; P = 0.09; I2 = 0%). Subanalyses revealed a lower incidence of recurrent atrial arrhythmia and repeat ablation during CBA without touch‑up RFA in pulmonary vein isolation. CONCLUSIONS CBA provides an alternative technique for persistent AF ablation. It might reduce the risk of repeat ablation and cardiac tamponade but increase the risk of PNP.
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Affiliation(s)
- Xiao-Hua Liu
- Department of Cardiology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiao-Fei Gao
- Department of Cardiology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chao-Lun Jin
- Department of Cardiology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chao-Feng Chen
- Department of Cardiology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Bin Chen
- Department of Cardiology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yi-Zhou Xu
- Department of Cardiology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China.
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Chen CF, Yang LT, Huang YJ, Shang-Guan ZH, Guo GY, Yao JL, Sha XD. A study on 85Kr measurement with an internal gas proportional counter. Appl Radiat Isot 2019; 155:108948. [PMID: 31655352 DOI: 10.1016/j.apradiso.2019.108948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 10/15/2019] [Accepted: 10/15/2019] [Indexed: 10/25/2022]
Abstract
A measurement method of 85Kr using an internal gas proportional counter (IGPC) is presented in this study. The operation conditions of the IGPC were determined and optimized, including the operating voltage, pressure, sample volume, interference from other gas components such as nitrogen or air, and mitigation of the memory effect. The IGPC was calibrated using certified standards, and the detection efficiency was approximately 58% for typical samples. A lower limit of detection of approximately 0.11 MBq/m3(Kr) was achieved after counting for 5 h with 1 mL pure Kr, corresponding to the atmospheric activity concentration of 0.18 Bq/m3 (air). It was shown that the IGPC could be used effectively for measuring 85Kr.
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Affiliation(s)
- Chao-Feng Chen
- Suzhou Nuclear Power Research Institute Co., Ltd, Suzhou, 215004, China
| | - Li-Tao Yang
- Suzhou Nuclear Power Research Institute Co., Ltd, Suzhou, 215004, China
| | - Yan-Jun Huang
- Suzhou Nuclear Power Research Institute Co., Ltd, Suzhou, 215004, China.
| | | | - Gui-Ying Guo
- Suzhou Nuclear Power Research Institute Co., Ltd, Suzhou, 215004, China
| | - Jian-Lin Yao
- Suzhou Nuclear Power Research Institute Co., Ltd, Suzhou, 215004, China
| | - Xiang-Dong Sha
- Suzhou Nuclear Power Research Institute Co., Ltd, Suzhou, 215004, China
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16
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Huang YJ, Guo GY, Chen CF, Yang LT, Shang-Guan ZH, Sha XD, Yao JL, Hu C. Automated separation and analysis of krypton-85 from low-volume gaseous effluent of nuclear power plant. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06838-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Chen CF, Jin CL, Liu MJ, Xu YZ. Efficacy, safety, and in-hospital outcomes of subcutaneous versus transvenous implantable defibrillator therapy: A meta-analysis and systematic review. Medicine (Baltimore) 2019; 98:e15490. [PMID: 31083185 PMCID: PMC6531055 DOI: 10.1097/md.0000000000015490] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Lead-related complication is an important drawback of trans-venous implantable cardioverter-defibrillators (TV-ICD). The subcutaneous ICD (S-ICD) was developed to overcome ICD lead associated complications; however, whether the S-ICD confers enhanced clinical benefits compared with TV-ICD remains unclear. The present systematic review and meta-analysis aimed to assess TV-ICD and S-ICD for safety, efficacy, and in-hospital outcomes in the prevention of sudden cardiac death (SCD) in patients not requiring pacing. METHODS The Medline, PubMed, EmBase, and Cochrane Library databases were searched for studies comparing TV-ICD and S-ICD. RESULTS A total of 9 eligible studies, including 5 propensity-matched case-control, 3 retrospective, and 1 cross-sectional studies were identified, assessing 7361 patients in all. Pool analyses demonstrated that SICD were associated with lower lead-related complication rates [odds ratio (OR) = 0.13; 95% confidence interval [CI] 0.05-0.33; I = 0%], and S-ICD was more beneficial in terms of reducing ICD shocks [OR = 0.48; 95% CI 0.32-0.72, I = 4%]. In addition, the patients administered S-ICD tend to have shorter length of hospital stay after implantation (SMD = -0.06; 95% CI -0.11 to 0.00, I = 0%) and reduce total complication rates (OR = 0.72; 95% CI 0.50-1.03; I = 18%), non-decreased quality of life (QoL). Moreover, both devices appeared to perform equally well with respect to infection rate and death. CONCLUSIONS Available overall data suggested that S-ICD is associated with reducing lead-related complications, ICD shocks. In addition, S-ICD has tendency to shorten hospitalization and reduce total complications, although the difference is no significant. Equivalent death rate, infection, and QoL were found between 2 groups. Therefore, S-ICD could be considered an alternative approach to TV-ICD in appropriate patients for SCD prevention.
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Affiliation(s)
- Chao-Feng Chen
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine
| | - Chao-Lun Jin
- Nanjing Medical University, Hangzhou, Zhejiang, China
| | - Mei-Jun Liu
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine
| | - Yi-Zhou Xu
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine
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Long Y, Du ZJ, Chen CF, Dong W, Wang WD. Online sparse Gaussian process based human motion intent learning for an electrically actuated lower extremity exoskeleton. IEEE Int Conf Rehabil Robot 2018; 2017:919-924. [PMID: 28813938 DOI: 10.1109/icorr.2017.8009366] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The most important step for lower extremity exoskeleton is to infer human motion intent (HMI), which contributes to achieve human exoskeleton collaboration. Since the user is in the control loop, the relationship between human robot interaction (HRI) information and HMI is nonlinear and complicated, which is difficult to be modeled by using mathematical approaches. The nonlinear approximation can be learned by using machine learning approaches. Gaussian Process (GP) regression is suitable for high-dimensional and small-sample nonlinear regression problems. GP regression is restrictive for large data sets due to its computation complexity. In this paper, an online sparse GP algorithm is constructed to learn the HMI. The original training dataset is collected when the user wears the exoskeleton system with friction compensation to perform unconstrained movement as far as possible. The dataset has two kinds of data, i.e., (1) physical HRI, which is collected by torque sensors placed at the interaction cuffs for the active joints, i.e., knee joints; (2) joint angular position, which is measured by optical position sensors. To reduce the computation complexity of GP, grey relational analysis (GRA) is utilized to specify the original dataset and provide the final training dataset. Those hyper-parameters are optimized offline by maximizing marginal likelihood and will be applied into online GP regression algorithm. The HMI, i.e., angular position of human joints, will be regarded as the reference trajectory for the mechanical legs. To verify the effectiveness of the proposed algorithm, experiments are performed on a subject at a natural speed. The experimental results show the HMI can be obtained in real time, which can be extended and employed in the similar exoskeleton systems.
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Chen CF, Liu XH, Gao XF, Chen B, Xu YZ. Catheter ablation of premature ventricular contractions originating from aortic sinus cusps in a patient with dextrocardia and situs solitus: A case report. Medicine (Baltimore) 2017; 96:e8947. [PMID: 29310391 PMCID: PMC5728792 DOI: 10.1097/md.0000000000008947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Premature ventricular contractions (PVCs) originating from aortic sinus cusps is not infrequent and can be eliminated effectively by radiofrequency ablation with rare complications. However, after a review of the medical literature, and to our knowledge, this is the first case of successful idiopathic aortic sinus cusps-PVC-ablation using a 3-dimensional (3D) mapping system in an adult with dextrocardia. METHODS A 62-year-old male with dextrocardia and situs inversus underwent catheter ablation of frequent PVCs. The electrocardiograms (ECG) were recorded by placement of the electrodes in reversed positions. The PVCs exhibited left bundle branch block and inferior axis QRS morphology with transition at leads V2-V3. The activation mapping indicated the earliest site of ventricular activation between the left and right aortic sinus cusps, highlighting that catheter ablation was successful at this point. RESULTS The catheter ablation was successful between the left and right aortic sinus cusps, and the PVCs were not detected for the subsequent 30 min following the procedure as well as for the rest of the hospital stay. CONCLUSION Combined with ECG electrodes in reversed positions and 3D electroanatomical mapping system, catheter ablation of PVCs originating from aortic sinus cusps in patients with dextrocardia can be safely and effectively performed.
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Chiu KH, Dong CD, Chen CF, Tsai ML, Ju YR, Chen TM, Chen CW. NMR-based metabolomics for the environmental assessment of Kaohsiung Harbor sediments exemplified by a marine amphipod (Hyalella azteca). Mar Pollut Bull 2017; 124:714-724. [PMID: 28267993 DOI: 10.1016/j.marpolbul.2017.02.067] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 02/21/2017] [Accepted: 02/24/2017] [Indexed: 05/08/2023]
Abstract
Inflow of wastewater from upstream causes a large flux of pollutants to enter Kaohsiung Harbor in Taiwan daily. To reveal the ecological risk posed by Kaohsiung Harbor sediments, an ecological metabolomic approach was employed to investigate environmental factors pertinent to the physiological regulation of the marine amphipod Hyalella azteca. The amphipods were exposed to sediments collected from different stream inlets of the Love River (LR), Canon River (CR), Jen-Gen River (JR), and Salt River (SR). Harbor entrance 1 (E1) was selected as a reference site. After 10-day exposure, metabolomic analysis of the Hyalella azteca revealed differences between two groups: {E1, LR, CR} and {JR, SR}. The metabolic pathways identified in the two groups of amphipods were significantly different. The results demonstrated that NMR-based metabolomics can be effectively used to characterize metabolic response related to sediment from polluted areas.
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Affiliation(s)
- K H Chiu
- Department and Graduate Institute of Aquaculture, National Kaohsiung Marine University, Kaohsiung, Taiwan
| | - C D Dong
- Department of Marine Environmental Engineering, National Kaohsiung Marine University, Kaohsiung, Taiwan; Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
| | - C F Chen
- Department of Marine Environmental Engineering, National Kaohsiung Marine University, Kaohsiung, Taiwan
| | - M L Tsai
- Department of Seafood Science, National Kaohsiung Marine University, Kaohsiung, Taiwan
| | - Y R Ju
- Department of Marine Environmental Engineering, National Kaohsiung Marine University, Kaohsiung, Taiwan
| | - T M Chen
- Department and Graduate Institute of Aquaculture, National Kaohsiung Marine University, Kaohsiung, Taiwan
| | - C W Chen
- Department of Marine Environmental Engineering, National Kaohsiung Marine University, Kaohsiung, Taiwan.
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Sun ZY, Geng DY, Chen CF, Wang PP, Song T. [Influence of extremely low-frequency magnetic field on circadian rhythm of cryptochrome in mouse embryonic fibroblasts]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2017; 35:459-462. [PMID: 28780826 DOI: 10.3760/cma.j.issn.1001-9391.2017.06.015] [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 influence of extremely low-frequency magnetic field on periodical expression of cryptochrome (Cry) gene in mouse embryonic fibroblast NIH3T3 cells. Methods: The NIH3T3 cells were divided into magnetic field group and sham-exposure group. The NIH3T3 cells in the magnetic field group were stimulated by horse serum and then exposed to an extremely low-frequency magnetic field (50 Hz and 0.3 mT) for 48 hours, and those in the sham-exposure group were also stimulated by horse serum and then exposed to a coil for 48 hours. The NIH3T3 cells were collected, total RNA was extracted, and cDNA was obtained via reverse transcription. Real-time fluorescent quantitative RT-PCR was used to measure the changes in transcription cycles of Cry and Period genes in both groups. Results: There was no significant difference in the proliferation rate at 0, 12, 24, and 48 hours of exposure between the two groups (P>0.05) . Both sham-exposure group and magnetic field group showed a rhythmic change in the expression of Cry gene, and compared with the sham-exposure group, the magnetic field group had a significantly shortened circadian rhythm of Cry gene in NIH3T3 cells (t=2.57, P<0.05) . Both groups had rhythmic and periodical expression of Period gene and there was no significant difference between the two groups (t=0.70, P>0.05) . Conclusion: Extremely low-frequency magnetic field can significantly shorten the circadian rhythm of Cry gene in mouse embryonic fibroblasts, while there is no significant change in the circadian rhythm of Period gene.
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Affiliation(s)
- Z Y Sun
- Province-Ministry Joint Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability, Hebei University of Technology, Tianjin 300130, China
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Liu WL, Chen CF, Lu DL, Guo LF. [Clinical evaluation value of visual analogue scale combined with C-reactive protein for the prognosis of peritonsillar abscess]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:794-795. [PMID: 29771046 DOI: 10.13201/j.issn.1001-1781.2017.10.014] [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: 03/02/2017] [Indexed: 11/12/2022]
Abstract
Objective:The aim of this study is to investigate the clinical value of visual analogue scale combined with serum C-reactive protein in evaluating the prognosis of peritonsillar abscess. Method:Thirty-one patients be hospitalized with peritonsillar abscess were enrolled in this study, who were treated by puncture and antibiotic from January 2016 to February 2017. VAS and CRP level were detected on the 1, 3, 5 day of hospitalization for all the patients. Result:Twenty-five patients were cured after 5 days. The 1, 3, 5 day's VAS of forty-seven patients were 8.20±1.25, 4.42±1.05, 1.41±0.55, respectively, and the CRP level were (62.41±8.61), (20.46±5.32), (5.41±1.95)mg/L, respectively (P<0.05) in the three days. The 1, 3 day's VAS of six patients were 8.41±1.44, 7.37±1.15, respectively, and the CRP level were (59.85±8.35), (45.33±7.46)mg/L, with no significant difference (P>0.05) in the two days. But the fifth day' VAS was 1.55±0.65, and the CRP level was 10.24±2.57 mg/L, with statistically significant difference (P<0.05)) compared with the first day. Conclusion:Subjective evaluation used by VAS and objective evaluation used by CRP level to assess the prognosis of peritonsillar. Therefore, VAS score combined with C-reactive protein detection is more accurate for the prognosis of tonsil abscess evaluation..
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Affiliation(s)
- W L Liu
- Department of Otorhinolaryngology Head and Neck Surgery, the Sixth Affiliated Hospital of Guangzhou Medical University, the People's Hospital of Qingyuan, Qingyuan, 511518, China
| | - C F Chen
- Department of Otorhinolaryngology Head and Neck Surgery, the Sixth Affiliated Hospital of Guangzhou Medical University, the People's Hospital of Qingyuan, Qingyuan, 511518, China
| | - D L Lu
- Department of Otorhinolaryngology Head and Neck Surgery, the Sixth Affiliated Hospital of Guangzhou Medical University, the People's Hospital of Qingyuan, Qingyuan, 511518, China
| | - L F Guo
- Department of Otorhinolaryngology Head and Neck Surgery, the Sixth Affiliated Hospital of Guangzhou Medical University, the People's Hospital of Qingyuan, Qingyuan, 511518, China
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Hu XP, Xie Q, Chen CF, Zhang W, Yu B. Let-7a Inhibits T-Cell Proliferation and IFN-γ Secretion by Down-Regulating STAT3 Expression in Patients with Psoriasis. Cell Physiol Biochem 2017; 42:115-125. [PMID: 28494466 DOI: 10.1159/000477120] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 01/08/2017] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE This study aimed to explore the effects of STAT3 targeting by let-7a on T-cell proliferation and IFN-γ secretion in psoriasis. METHODS From January 2013 to January 2015, 40 patients with psoriasis (psoriasis group) and 38 volunteers undergoing plastic surgery (control group) were enrolled in this study. Pearson correlation analysis was performed to evaluate the correlation between let-7a and STAT3 expression. T-cells were isolated and subjected to different transfection methods. A dual luciferase reporter assay was carried out to confirm STAT3 as a target gene of let-7a. Let-7a, STAT3 and IFN-γ mRNA expression was detected by quantitative real-time fluorescent polymerase chain reaction (qRT-PCR), and pSTAT3 protein levels were determined by Western blot. T-cell proliferation was evaluated with a cell counting kit-8 (CCK-8) assay. RESULTS The level of STAT3 mRNA and pSTAT3 was higher, but let-7a expression was lower in the psoriasis group than the control group. Pearson correlation analysis indicated that STAT3 expression was negatively correlated with let-7a expression. T-cells transfected with inhibitors exhibited greater IFN-γ mRNA expression and T-cell proliferation than transfected T-cells and T-cells transfected with a non-sense sequence, while T-cells transfected with let-7a mimics exhibited lower IFN-γ mRNA expression and T-cell proliferation than transfected T-cells and T-cells transfected with a non-sense sequence. This suggested that siRNA-STAT3 could reverse the increase in IFN-y mRNA expression and T-cell proliferation induced by let-7a inhibitors. CONCLUSION Our results demonstrated that let-7a inhibits T-cell proliferation and IFN-γ secretion by down-regulating STAT3 in psoriasis.
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Affiliation(s)
- Xiao-Ping Hu
- Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen, China
| | - Qian Xie
- Department of endocrinology, Peking University Shenzhen Hospital, Shenzhen, China
| | - Chao-Feng Chen
- Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen, China
| | - Wei Zhang
- Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen, China
| | - Bo Yu
- Department of Dermatology, Peking University Shenzhen Hospital, Shenzhen, China
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Duan X, Chen CF. Does coenzyme Q10 play a role in the risk of new-onset diabetes due to statins? Int J Cardiol 2016; 225:260-261. [PMID: 27741485 DOI: 10.1016/j.ijcard.2016.10.006] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2016] [Revised: 10/02/2016] [Accepted: 10/04/2016] [Indexed: 10/20/2022]
Affiliation(s)
- Xu Duan
- Department of Cardiology, Hangzhou First People's Hospital, 261# Huansha Road, Hangzhou, Zhejiang, China 310000.
| | - Chao-Feng Chen
- Department of Cardiology, Hangzhou First People's Hospital, 261# Huansha Road, Hangzhou, Zhejiang, China 310000.
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Xu YZ, Chen CF, Chen B, Gao XF, Hua W, Cha YM, Dzeja PP. The Modulating Effects of Cardiac Resynchronization Therapy on Myocardial Metabolism in Heart Failure. Pacing Clin Electrophysiol 2016; 39:1404-1409. [PMID: 27807872 DOI: 10.1111/pace.12971] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Accepted: 10/25/2016] [Indexed: 11/28/2022]
Abstract
Heart failure (HF) is associated with changes in cardiac substrate utilization and energy metabolism, including a decline in high-energy phosphate content, mitochondrial dysfunction, and phosphotransfer enzyme deficiency. A shift toward glucose metabolism was noted in the end stage of HF in animals, although HF in humans may not be associated with a shift toward predominant glucose utilization. Deficiencies of micronutrients are well-established causes of cardiomyopathy. Correction of these deficits can improve heart function. The genes governing the energy metabolism were predominantly underexpressed in nonischemic cardiomyopathy and hypertrophic cardiomyopathy but were overexpressed in ischemic cardiomyopathy. Cardiac resynchronization therapy (CRT) has been proven to increase cardiac efficiency without increasing myocardial oxygen consumption. Altered myocardial metabolism is normalized by CRT to improve ventricular function.
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Affiliation(s)
- Yi-Zhou Xu
- Department of Cardiology, Hangzhou First People's Hospital and Hangzhou Hospital of Nanjing Medical University, Hangzhou, China
| | - Chao-Feng Chen
- Department of Cardiology, Hangzhou First People's Hospital and Hangzhou Hospital of Nanjing Medical University, Hangzhou, China
| | - Bin Chen
- Department of Cardiology, Hangzhou First People's Hospital and Hangzhou Hospital of Nanjing Medical University, Hangzhou, China
| | - Xiao-Fei Gao
- Department of Cardiology, Hangzhou First People's Hospital and Hangzhou Hospital of Nanjing Medical University, Hangzhou, China
| | - Wei Hua
- The Cardiac Arrhythmia Center, Fu Wai Hospital of the Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yong-Mei Cha
- Division of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota
| | - Petras P Dzeja
- Division of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota
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Huang YJ, Guo GY, He Y, Yang LT, Shan Z, Chen CF, Shang-Guan ZH. A comparative study of terrestrial gamma dose rate in air measured by thermoluminescent dosimeter, portable survey meter and HPGe gamma spectrometer. J Environ Radioact 2016; 164:13-18. [PMID: 27372444 DOI: 10.1016/j.jenvrad.2016.06.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 06/17/2016] [Accepted: 06/23/2016] [Indexed: 06/06/2023]
Abstract
In this paper, three different widely-used measurement techniques for environmental gamma dose rate were studied and compared, i.e., the thermoluminescent dosimeter, the portable survey meter and the spectrometric analysis. Thirteen investigation sites were selected, and the TLDs were arranged to accumulate the radiation signals during an interval of about one quarter, the instant dose rates by using a portable survey meter were collected around the site, and top surface soils were sampled in the surroundings for radionuclides analyzing in laboratory. The results from these methods were compared, which revealed high correlations. The differences and possible uncertainties for the three methods were analyzed, inspired a further study should be conducted to have more successful estimation of dose rate in surface air.
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Affiliation(s)
- Yan-Jun Huang
- Suzhou Nuclear Power Research Institute, China General Nuclear Power Corporation, China.
| | - Gui-Yin Guo
- Suzhou Nuclear Power Research Institute, China General Nuclear Power Corporation, China
| | - Yi He
- Suzhou Nuclear Power Research Institute, China General Nuclear Power Corporation, China
| | - Li-Tao Yang
- Suzhou Nuclear Power Research Institute, China General Nuclear Power Corporation, China
| | - Zhen Shan
- Suzhou Nuclear Power Research Institute, China General Nuclear Power Corporation, China
| | - Chao-Feng Chen
- Suzhou Nuclear Power Research Institute, China General Nuclear Power Corporation, China
| | - Zhi-Hong Shang-Guan
- Suzhou Nuclear Power Research Institute, China General Nuclear Power Corporation, China
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Wang MM, Han YC, Chen CF, Lyu YF, Hou ZQ, Fan ZM, Wang HB. [Analyses of prognostic factors relevant to acute low-tone sensorineural hearing loss]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 51:644-649. [PMID: 27666700 DOI: 10.3760/cma.j.issn.1673-0860.2016.09.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the prognostic factors relevant to acute low-tone sensorineural hearing loss (ALHL). Methods: 196 adult ALHL patients, including 82 males and 114 females with mean age of (43.1±14.3)years old were included. All patients received the same therapy and were evaluated the curative effect. To evaluate the impact factors on the prognosis of hearing, inclusive of age, gender, time delay before the first visit, degree of deafness, vestibular function, electrocochleogram, and the serum levels of thyroxines by SPSS 18.0 software. Results: Of those 196 patients with ALHL, 124(63.3%) were recovery, 5(2.6%) were excellent better, 42(21.4%) were better, and 25 (12.8%) were poor, with a total effective rate of 87.2%. Among 15 (12.1%) who recurred the hearing loss, 2 developed into Meniere's disease during the follow-up. The mean age of patients with poor hearing effect was significantly older than that of other patients (P<0.05). No relativity was found between gender and hearing curative effect. There existed a statistical difference in total effective rate among subjects with different histories (P<0.05). In addition, the recovery rate was significantly different between groups, i. e., the course of disease was less than 14 days, between 14 days and 6 months, and between 6 months and 2 years (P<0.05). There was no statistical significance in total effective rate among different degrees of deafness (P>0.05). However, in term of the recovery rate, the difference was statistical significance (P<0.05). The recovery rate in patients with mild hearing loss was higher than that in middle or heavy hearing loss (both P<0.05). Among patients with mild deafness, the recovery rate in patients whose history was less than 3 months was significantly higher than that more than 3 months (P<0.05). For moderate deafness patients, the recovery rate in patients whose history was less than 7 days was significantly higher than that more than 1 month (P<0.05). There were statistical differences in hearing effect of 130 (66.3%) patients with abnormal vestibular function in comparison to that with normal vestibular function (χ2=15.1, P<0.05). There were 17(8.7%) patients with abnormal electrocochleogram combined with abnormal vestibular function, and the hearing effects were all poor. There were 45 (23.0%) patients with abnormal thyroxine levels in serum, which was significant higher than that in health adults of 5.9%(χ2=7.26, P<0.01). There was no significant difference in hearing prognosis between patients with abnormal and normal thyroxine levels (χ2=2.51, P>0.05). Conclusions: With respect to ALHL, the hearing effect is associated significantly with the history. The severity of hearing loss is negative prognostic factor for hearing recovery. Age, vestibular function, and electrocochleogram might predict hearing recovery. Gender and thyroxine levels couldn't predict the hearing prognosis, although there is a high incidence rate in patients with ALHL.
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Affiliation(s)
- M M Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Shandong Provincial Hospital affiliated to Shandong University, Ji'nan 250021, China
| | - Y C Han
- Department of Otorhinolaryngology Head and Neck Surgery, Shandong Provincial Hospital affiliated to Shandong University, Ji'nan 250021, China
| | - C F Chen
- Department of Otorhinolaryngology Head and Neck Surgery, Shandong Provincial Hospital affiliated to Shandong University, Ji'nan 250021, China
| | - Y F Lyu
- Department of Otorhinolaryngology Head and Neck Surgery, Shandong Provincial Hospital affiliated to Shandong University, Ji'nan 250021, China
| | - Z Q Hou
- Department of Otorhinolaryngology Head and Neck Surgery, Shandong Provincial Hospital affiliated to Shandong University, Ji'nan 250021, China
| | - Z M Fan
- Department of Otorhinolaryngology Head and Neck Surgery, Shandong Provincial Hospital affiliated to Shandong University, Ji'nan 250021, China
| | - H B Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Shandong Provincial Hospital affiliated to Shandong University, Ji'nan 250021, China
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Wang MM, Ai Y, Chen CF, Hou ZQ, Fan ZM, Han YC, Wang HB. [Ultrahigh-frequency hearing thresholds in middleaged and elderly healthy adults]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 30:1038-1041. [PMID: 29798033 DOI: 10.13201/j.issn.1001-1781.2016.13.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Indexed: 11/12/2022]
Abstract
Objective:To investigate the ultrahigh-frequency(UHF) hearing thresholds in middle-aged and elderly healthy subjects .Method: Healthy subjects(age range: 50-69 ) were divided into two groups,i.e.50-59 year-old group and >59-69 year-old group.Each subject was tested with both conventional-frequency(0.25,0.50,1.00,2.00,4.00,6.00 and 8.00 kHz) and ultrahigh-frequency(9.0,10.0,11.5,12.5,14.0,16.0,18.0,and 20.0 kHz) audiometry.UHF was performed twice to evaluate the reliability.The best hearings among 20-29 aged healthy adults were considered as normal controls.Results:Seventy five middle-aged and elderly subjects were included,with 39 subjects(78 ears) being 50-59 years old and 36(72 ears) being >59-69 year-old.Eighteen subjects(36 ears) aging from 20 to 29 were considers as controls.For the conventional-frequency,the hearing thresholds in middle-aged and elderly people were significantly higher than those in young people(all P<0.05),especially at ≥4 kHz.Although the conventional-frequency thresholds in >59-69 year-old group were higher than those in 50-59 year-old,the difference was significant just at 4 kHz(P<0.05).The UHF thresholds in middle-aged and elderly people were significantly higher than those in young people(all P<0.05).The thresholds at 9,10,11.5 and 12.5 kHz in >59-69 year-old people were significantly increased than those in 50-59 year-old counterparts(all P<0.05).Hearing threshold at ≥12.5 kHz couldn't be detected in some subjects in middle-aged and elderly group.The response rate at UHF in >59-69 year-old people were just higher than that in 50-59 year-old counterparts (P>0.05),and none responded at 18 and 20 kHz.The standard deviations(SDs) for <14 kHz in 50-59 year-old and for <11.5 kHz in >59-69 year-old subjects,were both higher than that in 20-29 year old counterparts.Above 6 kHz,the SDs in 50-59 year-old subjects were significantly higher than those in >59-69 year-old subjects(all P<0.05).Conclusion:For middle-aged and elderly people,the hearing loss may occur from 4 kHz.Hearing thresholds at UHF were increased with age,and it might be used as an early indicator for age-induced hearing loss.However,the UHF sensitivity decreased as the frequency increased beyond 14 kHz.
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Affiliation(s)
- M M Wang
- Department of Otolaryngology-Head and Neck Surgery,Provincial Hospital Affiliated to Shandong University,Jinan,250021,China
| | - Y Ai
- Department of Otolaryngology-Head and Neck Surgery,Provincial Hospital Affiliated to Shandong University,Jinan,250021,China
| | - C F Chen
- Department of Otolaryngology-Head and Neck Surgery,Provincial Hospital Affiliated to Shandong University,Jinan,250021,China
| | - Z Q Hou
- Department of Otolaryngology-Head and Neck Surgery,Provincial Hospital Affiliated to Shandong University,Jinan,250021,China
| | - Z M Fan
- Department of Otolaryngology-Head and Neck Surgery,Provincial Hospital Affiliated to Shandong University,Jinan,250021,China
| | - Y C Han
- Department of Otolaryngology-Head and Neck Surgery,Provincial Hospital Affiliated to Shandong University,Jinan,250021,China
| | - H B Wang
- Department of Otolaryngology-Head and Neck Surgery,Provincial Hospital Affiliated to Shandong University,Jinan,250021,China
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Gao Q, Chen CF, Dong Q, Hou L, Chen X, Zhi YL, Li X, Lu HT, Zhang HY. Establishment of a neuroblastoma mouse model by subcutaneous xenograft transplantation and its use to study metastatic neuroblastoma. Genet Mol Res 2015; 14:16297-307. [PMID: 26662423 DOI: 10.4238/2015.december.8.20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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
The aim of this study was to establish a metastatic human neuroblastoma (NB) mouse model by xenograft in order to study the metastatic mechanisms of NB. A human NB cell line was obtained from a 5-year-old patient and cultured in vitro. A suspension of these cells was subcutaneously inoculated into nude mice at the right flank next to the forelimb. The biological characteristics of the developed subcutaneous and metastatic tumors were analyzed by hematoxylin and eosin staining. The expression of the tumor marker neuron-specific enolase was determined by immunohistochemistry, and the invasive ability of metastatic tumors was examined by a Matrigel invasion assay. DNA microarray analyses were performed to examine the metastasis-related gene expression. Our results showed that tumors grew in 75% of the mice injected with NB cells and the rate of metastasis was 21%. The xenograft tumors retained the morphological and biological characteristics of the NB specimen from the pediatric patient. Neuron-specific enolase was highly expressed in both subcutaneous and metastatic tumors. The metastatic tumor cells possessed a higher invasive capability than the primary NB cells. The expression of 25 metastasis-related genes was found to be significantly altered in metastatic tumors compared to primary tumors, including RECK, MMP2, VEGF, MMP3, and CXCL12. In conclusion, we successfully established a human NB xenograft model with high tumor-bearing and metastatic rates in nude mice, providing an ideal animal model for the in vivo study of NB.
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Affiliation(s)
- Q Gao
- Department of Pediatric Surgery, Qingdao Women and Children Hospital, Qingdao, Shandong, China
| | - C F Chen
- Department of Pediatric Surgery, Linyi People's Hospital, Shandong, China
| | - Q Dong
- Department of Pediatric Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - L Hou
- Department of Biochemistry, Medical College, Qingdao University, Qingdao, Shandong, China
| | - X Chen
- Department of Pediatric Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Y L Zhi
- Department of Pediatric Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - X Li
- Department of Pediatric Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - H T Lu
- Department of Pediatric Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - H Y Zhang
- Department of Pediatric Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
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Gao Q, Chen CF, Dong Q, Hou L, Chen X, Zhi YL, Li X, Lu HT, Zhang HY. Elevated TrkA receptor expression is associated with all-trans retinoic acid-induced neuroblastoma differentiation. Genet Mol Res 2015; 14:13195-202. [PMID: 26535632 DOI: 10.4238/2015.october.26.15] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Neuroblastoma is the most common and one of the deadliest among pediatric tumors; however, a subset of infants with neuroblastoma display spontaneous regression. The mechanism of spontaneous regression remains to be elucidated. TrkA plays an essential role in the differentiation and functionality of neurons; abundant TrkA expression is associated with favorable prognosis of neuroblastoma. All-trans retinoic acid (ATRA), a first-line drug for acute promyelocytic leukemia (APL) treatment, has been shown to induce differentiation and inhibit cell growth. Neuroblastoma tissues in our hospital inpatient were collected, primary cell culture was performed, and the cells were separated and purified to be cell line. Trypan blue exclusion was used to count the numbers of cells alive, morphological changes were observed under the phase-contrast microscope. RT-PCR was used to determine the expression level of TrkA. In this study, a human neuroblastoma cell line was successfully established; in addition, we demonstrated that ATRA induces growth arrest and promotes the differentiation of neuroblastoma cells. In addition, ATRA was shown to significantly increase the levels of TrkA mRNA expression. Therefore, we concluded that the elevated expression of the TrkA receptor is associated with ATRA-induced growth arrest and differentiation o neuroblastoma cells. The results of this study provide a theoretical basis for the clinical application of differentiation-inducing ATRA for neuroblastoma therapy.
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Affiliation(s)
- Q Gao
- Department of Pediatric Surgery, Qingdao Women and Children Hospital, Qingdao, Shandong, China
| | - C F Chen
- Department of Pediatric Surgery, Linyi People's Hospital, No. 27, Jiefang Road, Linyi, Shandong, China
| | - Q Dong
- Department of Pediatric Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - L Hou
- Department of Biochemistry, Medical College, Qingdao University, Qingdao, Shandong, China
| | - X Chen
- Department of Pediatric Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Y L Zhi
- Department of Pediatric Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - X Li
- Department of Pediatric Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - H T Lu
- Department of Pediatric Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - H Y Zhang
- Department of Pediatric Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
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Qiao J, Yang HB, Peng YL, Meng QL, Chen C, Ma Y, Xie K, Liu TL, Cai XP, Chen CF. Effect of ORF119 gene deletion on the replication and virulence of orf virus. Acta Virol 2015; 59:257-64. [PMID: 26435149 DOI: 10.4149/av_2015_03_257] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Orf is a severe infectious disease of sheep and goats caused by orf virus (ORFV). To investigate the role of ORF119 gene of ORFV, we constructed ORFV with deleted ORF119 gene and LacZ as reporter gene (ORFV-Δ119-LacZ) via homologous recombination. The results showed that wild-type ORF-SHZ1 and ORFV-Δ119-LacZ deletion viruses replicated in Vero cells to similar titers. Relative transcriptional levels of virulence genes OVIFNR, GIF, VEGF and VIL-10 of ORFV-Δ119-LacZ deletion virus were slightly but not significantly lower after 24 hr compared with the wtORF-SHZ1 virus. In vivo experiments showed that 2-month-old lambs inoculated with ORFV-Δ119-LacZ deletion virus exhibited a similar total clinical score compared with those inoculated with wtORF-SHZ1 virus. Based on these results, we conclude that deletion of the ORF119 gene has no significant effect on ORFV replication and virulence.
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Chen CF, Chen B, Zhu J, Xu YZ. Antithrombotic therapy after percutaneous coronary intervention in patients requiring oral anticoagulant treatment. A meta-analysis. Herz 2015; 40:1070-83. [PMID: 26135462 DOI: 10.1007/s00059-015-4325-0] [Citation(s) in RCA: 9] [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: 01/17/2015] [Revised: 04/30/2015] [Accepted: 05/13/2015] [Indexed: 01/01/2023]
Abstract
AIM The aim of this meta-analysis was to evaluate the benefits and risks of triple therapy (TT) compared with dual therapy (DT) for patients with an indication for anticoagulation who had undergone percutaneous coronary intervention. BACKGROUND An increasing number of patients undergoing percutaneous coronary intervention have atrial fibrillation or other indications for oral anticoagulants. For these patients, TT (oral anticoagulants plus aspirin and clopidogrel) is indicated, but this type of treatment increases the risk of bleeding. Thus, it remains controversial whether these patients can benefit more from TT. METHODS We identified 23 clinical trials that compared TT with DT (aspirin and clopidogrel or oral anticoagulants plus a single antiplatelet drug) after percutaneous coronary intervention in patients undergoing oral anticoagulant (OAC) treatment. The follow-up period ranged from 1 month to 25 months. Two coauthors independently recorded the data on interventions and on the occurrence of major adverse cardiac events (MACE), all-cause death, and major bleeding events. RESULTS The 23 clinical trials comprised 22,212 participants. Our analysis was feasible because the baseline characteristics and grouping criteria were similar in all groups. The results indicated that TT was more efficacious than DT [dual antiplatelet (DAPT) or OAC + single antiplatelet] in reducing MACE/stroke (RR = 0.76, 95 % CI: 0.70-0.83; p < 0.00001 and RR = 0.67, 95 % CI: 0.59-0.75; p < 0.00001, respectively) There was a significant reduction in all-cause death in the TT regimen compared with the DT regimen (RR = 0.64, 95 % CI: 0.56-0.73; p < 0.00001 and RR = 0.48, 95 % CI: 0.39-0.58; p < 0.00001, respectively). In a subgroup analysis without retrospective studies, we found that there was no significant difference between TT and DT with regard to MACE/stroke (RR = 1.06, 95 % CI: 0.88-1.27; p = 0.54 and RR = 0.95, 95 % CI: 0.79-1.14; p = 0.58, respectively) and all-cause death (RR = 0.84, 95 % CI: 0.63-1.12; p = 0.24 and RR = 1.13, 95 % CI: 0.78-1.64; p = 0.51, respectively). We also found that TT significantly increased the risk of major bleeding compared with DAPT (RR = 1.36; 95 % CI: 1.17-1.58; p < 0.0001). However, there was no difference between TT and OAC + single antiplatelet agent (RR = 0.96; 95 % CI: 0.75-1.21; p = 0.71). Finally, in the comparison between TT and OAC + clopidogrel, there were no differences in major bleeding events, MACE and stroke, and all-cause death. CONCLUSION Our analysis found no statistically significant difference between TT and DT with regard to all-cause death and MACE/stroke risk. At the same time, the available data demonstrated that TT increased the risk of major bleeding. If the international normalized ratio is in the target range, the risk of bleeding may be lowered. The data from Asian countries were limited, and therefore we could not assess the difference between TT and DT in Asian populations. Finally,on the basis of our analysis, we do not recommend TT as conventional treatment for patients taking OACs and undergoing percutaneous coronary intervention.
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Affiliation(s)
- Chao-Feng Chen
- The Affiliated Hangzhou Hospital, Nanjing Medical University, Hang Zhou, Zhe Jiang Province, China
| | - Bin Chen
- The Affiliated Hangzhou Hospital, Nanjing Medical University, Hang Zhou, Zhe Jiang Province, China
| | - Jue Zhu
- The Affiliated Hangzhou Hospital, Nanjing Medical University, Hang Zhou, Zhe Jiang Province, China
| | - Yi-Zhou Xu
- The Affiliated Hangzhou Hospital, Nanjing Medical University, Hang Zhou, Zhe Jiang Province, China.
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Chen CF, Huang J, Li H, Zhang C, Huang X, Tong G, Xu YZ. MicroRNA-221 regulates endothelial nitric oxide production and inflammatory response by targeting adiponectin receptor 1. Gene 2015; 565:246-51. [DOI: 10.1016/j.gene.2015.04.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Revised: 03/13/2015] [Accepted: 04/07/2015] [Indexed: 12/30/2022]
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Huang YJ, Guo GY, Wu LS, Zhang B, Chen CF, Zhang HY, Qin HJ, Shang-Guan ZH. An analytical method for 14C in environmental water based on a wet-oxidation process. J Environ Radioact 2015; 142:1-8. [PMID: 25590997 DOI: 10.1016/j.jenvrad.2014.12.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Revised: 12/18/2014] [Accepted: 12/30/2014] [Indexed: 06/04/2023]
Abstract
An analytical method for (14)C in environmental water based on a wet-oxidation process was developed. The method can be used to determine the activity concentrations of organic and inorganic (14)C in environmental water, or total (14)C, including in drinking water, surface water, rainwater and seawater. The wet-oxidation of the organic component allows the conversion of organic carbon to an inorganic form, and the extraction of the inorganic (14)C can be achieved by acidification and nitrogen purging. Environmental water with a volume of 20 L can be used for the wet-oxidation and extraction, and a detection limit of about 0.02 Bq/g(C) can be achieved for water with carbon content above 15 mg(C)/L, obviously lower than the natural level of (14)C in the environment. The collected carbon is sufficient for measurement with a low level liquid scintillation counter (LSC) for typical samples. Extraction or recovery experiments for inorganic carbon and organic carbon from typical materials, including analytical reagents of organic benzoquinone, sucrose, glutamic acid, nicotinic acid, humic acid, ethane diol, et cetera., were conducted with excellent results based on measurement on a total organic carbon analyzer and LSC. The recovery rate for inorganic carbon ranged tween 98.7%-99.0% with a mean of 98.9(± 0.1)%, for organic carbon recovery ranged between 93.8% and 100.0% with a mean of 97.1(± 2.6)%. Verification and an uncertainty budget of the method are also presented for a representative environmental water. The method is appropriate for (14)C analysis in environmental water, and can be applied also to the analysis of liquid effluent from nuclear facilities.
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Affiliation(s)
- Yan-Jun Huang
- Suzhou Nuclear Power Research Institute, China General Nuclear Power Group, Suzhou 215004, PR China.
| | - Gui-Yin Guo
- Suzhou Nuclear Power Research Institute, China General Nuclear Power Group, Suzhou 215004, PR China.
| | - Lian-Sheng Wu
- Suzhou Nuclear Power Research Institute, China General Nuclear Power Group, Suzhou 215004, PR China
| | - Bing Zhang
- Suzhou Nuclear Power Research Institute, China General Nuclear Power Group, Suzhou 215004, PR China
| | - Chao-Feng Chen
- Suzhou Nuclear Power Research Institute, China General Nuclear Power Group, Suzhou 215004, PR China
| | - Hai-Ying Zhang
- Suzhou Nuclear Power Research Institute, China General Nuclear Power Group, Suzhou 215004, PR China
| | - Hong-Juan Qin
- Suzhou Nuclear Power Research Institute, China General Nuclear Power Group, Suzhou 215004, PR China
| | - Zhi-Hong Shang-Guan
- Suzhou Nuclear Power Research Institute, China General Nuclear Power Group, Suzhou 215004, PR China
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Huang YJ, Chen CF, Huang YC, Yue QJ, Zhong CM, Tan CJ. Natural radioactivity and radiological hazards assessment of bone-coal from a vanadium mine in central China. Radiat Phys Chem Oxf Engl 1993 2015. [DOI: 10.1016/j.radphyschem.2014.10.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Cao YL, Chen CF, Wang AW, Feng YB, Cheng HX, Zhang WW, Xin W. Changes of peripheral-type benzodiazepine receptors in the penumbra area after cerebral ischemia-reperfusion injury and effects of astragaloside IV on rats. Genet Mol Res 2015; 14:277-85. [PMID: 25729960 DOI: 10.4238/2015.january.23.1] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This study investigated the changes in peripheral benzodiazepine receptors (PBRs) in the penumbra after cerebral ischemia-reperfusion injury, and examined the effects of astragaloside IV (AST) on PBRs in rats. Sixty Sprague-Dawley rats were divided into a sham operation group, a model group, and three AST treatment groups. Cerebral ischemic models were induced by the clue-blocked method. Neurological deficits were examined. The animals were sacrificed after 2 h of ischemia and 24 h of reperfusion, and mitochondria from the penumbra were purified. PBR density (Bmax) and affinity were measured by radioligand assays. Mitochondrial [(3)H]PK11195 binding was correlated with neurological deficits in rats. Compared to the model group, the 10 mg/kg AST group, 40 mg/kg AST group, and 100 mg/kg AST group had fewer neurological deficits. The effects in the 40 mg/ kg group did not significantly differ from the effects in the 100 mg/ kg group. Compared to the model group, the 10 mg/kg AST group, 40 mg/kg group, and 100 mg/kg group had a decreased Bmax in the penumbra. The Bmax decreased in the 40 mg/kg AST group and in the 100 mg/kg AST group compared with the 10 mg/kg group. The Bmax and neurological deficits in the 40 mg/kg did not significantly differ from those in the 100 mg/kg group. By contrast, the AST-treated rats showed no significant changes in the binding parameter equilibrium dissociation constant compared with those in the sham operation group and the model group. AST protects ischemic brain tissue by inhibiting PBR expression after cerebral ischemia.
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Affiliation(s)
- Y L Cao
- Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - C F Chen
- Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - A W Wang
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Y B Feng
- Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - H X Cheng
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - W W Zhang
- Central Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - W Xin
- Central Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
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Huang YJ, Zeng F, Zhang B, Chen CF, Qin HJ, Wu LS, Guo GY, Yang LT, Shang-Guan ZH. Method validation and uncertainty evaluation of organically bound tritium analysis in environmental sample. J Environ Radioact 2014; 134:83-88. [PMID: 24695278 DOI: 10.1016/j.jenvrad.2014.03.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Revised: 03/01/2014] [Accepted: 03/13/2014] [Indexed: 06/03/2023]
Abstract
The analytical method for organically bound tritium (OBT) was developed in our laboratory. The optimized operating conditions and parameters were established for sample drying, special combustion, distillation, and measurement on a liquid scintillation spectrometer (LSC). Selected types of OBT samples such as rice, corn, rapeseed, fresh lettuce and pork were analyzed for method validation of recovery rate reproducibility, the minimum detection concentration, and the uncertainty for typical low level environmental sample was evaluated. The combustion water recovery rate of different dried environmental sample was kept at about 80%, the minimum detection concentration of OBT ranged from 0.61 to 0.89 Bq/kg (dry weight), depending on the hydrogen content. It showed that this method is suitable for OBT analysis of environmental sample with stable recovery rate, and the combustion water yield of a sample with weight about 40 g would provide sufficient quantity for measurement on LSC.
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Affiliation(s)
- Yan-Jun Huang
- Suzhou Nuclear Power Research Institute, CGNPG, 215004, PR China.
| | - Fan Zeng
- Suzhou Nuclear Power Research Institute, CGNPG, 215004, PR China.
| | - Bing Zhang
- Suzhou Nuclear Power Research Institute, CGNPG, 215004, PR China.
| | - Chao-Feng Chen
- Suzhou Nuclear Power Research Institute, CGNPG, 215004, PR China.
| | - Hong-Juan Qin
- Suzhou Nuclear Power Research Institute, CGNPG, 215004, PR China.
| | - Lian-Sheng Wu
- Suzhou Nuclear Power Research Institute, CGNPG, 215004, PR China.
| | - Gui-Yin Guo
- Suzhou Nuclear Power Research Institute, CGNPG, 215004, PR China.
| | - Li-Tao Yang
- Suzhou Nuclear Power Research Institute, CGNPG, 215004, PR China.
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Pham MH, Berthouly-Salazar C, Tran XH, Chang WH, Crooijmans RPMA, Lin DY, Hoang VT, Lee YP, Tixier-Boichard M, Chen CF. Genetic diversity of Vietnamese domestic chicken populations as decision-making support for conservation strategies. Anim Genet 2013; 44:509-21. [PMID: 23714019 DOI: 10.1111/age.12045] [Citation(s) in RCA: 16] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/26/2013] [Indexed: 11/27/2022]
Abstract
The aims of this study were to assess the genetic diversity of 17 populations of Vietnamese local chickens (VNN) and one Red Jungle Fowl population, together with six chicken populations of Chinese origin (CNO), and to provide priorities supporting the conservation of genetic resources using 20 microsatellites. Consequently, the VNN populations exhibited a higher diversity than did CNO populations in terms of number of alleles but showed a slightly lower observed heterozygosity. The VNN populations showed in total seven private alleles, whereas no CNO private alleles were found. The expected heterozygosity of 0.576 in the VNN populations was higher than the observed heterozygosity of 0.490, leading to heterozygote deficiency within populations. This issue could be partly explained by the Wahlund effect due to fragmentation of several populations between chicken flocks. Molecular analysis of variance showed that most of genetic variation was found within VNN populations. The Bayesian clustering analysis showed that VNN and CNO chickens were separated into two distinct groups with little evidence for gene flow between them. Among the 24 populations, 13 were successfully assigned to their own cluster, whereas the structuring was not clear for the remaining 11 chicken populations. The contributions of 24 populations to the total genetic diversity were mostly consistent across two approaches, taking into account the within- and between-populations genetic diversity and allelic richness. The black H'mong, Lien Minh, Luong Phuong and Red Jungle Fowl were ranked with the highest priorities for conservation according to Caballero and Toro's and Petit's approaches. In conclusion, a national strategy needs to be set up for Vietnamese chicken populations, with three main components: conservation of high-priority breeds, within-breed management with animal exchanges between flocks to avoid Wahlund effect and monitoring of inbreeding rate.
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Affiliation(s)
- M H Pham
- Department of Animal Science, National Chung-Hsing University, Taichung, Taiwan
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Lin SJ, Foley J, Jiang TX, Yeh CY, Wu P, Foley A, Yen CM, Huang YC, Cheng HC, Chen CF, Reeder B, Jee SH, Widelitz RB, Chuong CM. Topology of feather melanocyte progenitor niche allows complex pigment patterns to emerge. Science 2013; 340:1442-5. [PMID: 23618762 DOI: 10.1126/science.1230374] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Color patterns of bird plumage affect animal behavior and speciation. Diverse patterns are present in different species and within the individual. Here, we study the cellular and molecular basis of feather pigment pattern formation. Melanocyte progenitors are distributed as a horizontal ring in the proximal follicle, sending melanocytes vertically up into the epithelial cylinder, which gradually emerges as feathers grow. Different pigment patterns form by modulating the presence, arrangement, or differentiation of melanocytes. A layer of peripheral pulp further regulates pigmentation via patterned agouti expression. Lifetime feather cyclic regeneration resets pigment patterns for physiological needs. Thus, the evolution of stem cell niche topology allows complex pigment patterning through combinatorial co-option of simple regulatory mechanisms.
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Affiliation(s)
- S J Lin
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
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Morris CL, Bourke M, Byler DD, Chen CF, Hogan G, Hunter JF, Kwiatkowski K, Mariam FG, McClellan KJ, Merrill F, Morley DJ, Saunders A. Qualitative comparison of bremsstrahlung X-rays and 800 MeV protons for tomography of urania fuel pellets. Rev Sci Instrum 2013; 84:023902. [PMID: 23464222 DOI: 10.1063/1.4789947] [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: 06/01/2023]
Abstract
We present an assessment of x-rays and proton tomography as tools for studying the time dependence of the development of damage in fuel rods. We also show data taken with existing facilities at Los Alamos National Laboratory that support this assessment. Data on surrogate fuel rods have been taken using the 800 MeV proton radiography (pRad) facility at the Los Alamos Neutron Science Center (LANSCE), and with a 450 keV bremsstrahlung X-ray tomography facility. The proton radiography pRad facility at LANSCE can provide good position resolution (<70 μm has been demonstrate, 20 μm seems feasible with minor changes) for tomography on activated fuel rods. Bremsstrahlung x-rays may be able to provide better than 100 μm resolution but further development of sources, collimation, and detectors is necessary for x-rays to deal with the background radiation for tomography of activated fuel rods.
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Affiliation(s)
- C L Morris
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
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Abstract
OBJECTIVE Reperfusion of the ischemic liver results in the generation of oxidative and nitrosative stresses and reaction product of peroxynitrite, which induce rapid cytotoxicity and liver injury. In this study we demonstrated that curcumin, an antioxidant, attenuated ischemia/reperfusion (I/R)-induced liver injury. MATERIALS AND METHODS Ischemia was induced by clamping the common hepatic artery and portal vein of rats for 30 minutes. Thereafter, flow was restored and the liver was reperfused for 80 minutes. Blood samples collected prior to ischemia and after reperfusion were analyzed for methyl guanidine (MG), nitric oxide (NO), tumor necrosis factor-alpha (TNF-α), and adenosphate triphosphate (ATP). Blood levels of serum glutamic oxaloacetic transaminase (sGOT), serum glutamate pyruvate transaminase (sGPT), and lactic dehydrogenase (LDH), which served as indexes of liver injury, were measured. RESULTS The protocol resulted in elevation of blood NO (P < .001), TNF-α (P < .001), and MG (P < .001). sGOT, sGPT, and LDH were elevated significantly (P < .001), whereas ATP was significantly diminished (P < .001). Pretreatment with curcumin (25 mg/kg) significantly attenuated the reperfusion liver injury, while the ATP content reversed. In addition, MG, TNF-α, and NO release were attenuated. CONCLUSIONS These results indicated that curcumin exerted potent anti-inflammatory effects in I/R-induced liver injury due to its antioxidant effects.
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Affiliation(s)
- C M Lin
- Division of Pulmonary Medicine, Department of Internal Medicine, Shin Kong Wu-Ho-Su Memorial Hospital, Taipei, Taiwan
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Yeh JH, Su CL, Chen CF, Wang D, Wang JJ. Liver reperfusion-induced decrease in dynamic compliance and increase in airway resistance are ameliorated by preischemic treatment with melatonin through scavenging hydroxyl radicals in rat lungs. Transplant Proc 2012; 44:966-9. [PMID: 22564598 DOI: 10.1016/j.transproceed.2012.01.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
OBJECTIVES Acute lung injury is frequently observed in patients subsequent to liver ischemia and reperfusion (I/R) injury. However, the changes in pulmonary function, eg, lung dynamic compliance (C(dyn)) and airway resistance (RI), are not well understood. We sought to study the alternations in pulmonary function during liver I/R and the protective effects of preischemic treatment with melatonin. METHODS Animals were divided into 3 groups: sham-operated, liver I/R, and intraperitoneal (i.p.) pretreatment with melatonin (15 mg/kg). Liver I/R was performed by clamping the hepatic artery and portal vein for 30 minutes followed by releasing for 2 hours. The C(dyn) and RI were studied at baseline and at 2 hours of reperfusion. We assessed the level of pulmonary hydroxyl radicals by methylguanidine (MG) content in the bronchoalveolar lavage fluid (BALF) as well as the liver damage using plasma levels of lactate dehydrogenase (LDH), glutamic oxaloacetic transaminase (GOT), and glutamic pyruvic transaminase (GPT). RESULTS After 2 hours of liver reperfusion, C(dyn) was reduced by ∼25%, while RI increased by ∼16% (P < .05). The decreased C(dyn) and increased RI were markedly attenuated by melatonin pretreatment (P < .05). Melatonin pretreatment also protected the liver against I/R injury (P < .05), as seen by reduced LDH, GOT and GPT along with markedly reduced hydroxyl radicals (P < .05). CONCLUSIONS Preischemic treatment with melatonin protected lung function against damage by liver I/R. The improvement in lung function was strongly associated with decreased hydroxyl radicals in the lungs.
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Affiliation(s)
- J-H Yeh
- Department of Neurology, Shin Kong Wu Ho Su Memorial Hospital, Taipei, Taiwan
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Shih FJ, Chang YC, Chen CF, Lin FJ, Huang YS, Yan YH, Shih FJ, Chen CR. Difficulties in organ procurement and transplantation in the aboriginal minority people in Taiwan. Transplant Proc 2012; 44:832-4. [PMID: 22564560 DOI: 10.1016/j.transproceed.2012.03.022] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Aboriginal people (AP) are a minority group in Taiwan. Little information on their perspectives on organ transplantation (OT) is available. Their rights for organ donation (OD) and as OT recipients (OTR) are constrained as a vulnerable population in society. This research sought to explore various Highland Aborigine Tribes beliefs systems and concepts related to OT. METHODS We employed a qualitative design on a purposive sample including seven categories of Taiwanese AP. Data collected by face-to-face interviews were evaluated by content analysis. RESULTS Seventy-five informants (45 female and 30 males) of 18 to 82 years from seven tribes completed interviews: Bunun (n = 20), Shao (n = 18), Tsou (n = 15), Amis (n = 12), Truku (n = 4), Rukai (n = 3), and Puyuma (n = 3). Of there, 33% had no idea of OT. All informants reported lack of knowledge of OD, organ procurement, and OTR. Eighty percent (45-82 years) had no willingness for OD or OTR; others might consult family members and health professionals (HP) to learn about OT. Seven hindering factors were identified: (1) having no background of OT; (2) limited impressions obtained from television news reports; (3) negative concepts of donating one's organs to others; (4) OT concepts contrast with cultural meanings of death; (5) possibility of being stigmatized; (6) fear of being rejected by others; and (7) HP had never mentioned OT. CONCLUSIONS Taiwan APs' perspectives of OT concepts showed the majority to be unfamiliar with the concept and benefits of OT. Future research is necessary to explore the possible avenues to facilitate communications between HP and AP leaders, as well as elders in each AP category in Taiwan.
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Affiliation(s)
- F J Shih
- Institute of Clinical & Community Health Nursing, National Yang-Ming University, Taiwan
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Chen CF, You ZH, Yang WC, Lin CC. Hypokalaemic paralysis with seemingly pH-neutralized blood gas: liquorice-induced mineralocorticoid effect superimposed on renal tubular acidosis. Acta Clin Belg 2011; 66:403. [PMID: 22145284 DOI: 10.2143/acb.66.5.2062602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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Chang CS, Chen CF, Berthouly-Salazar C, Chazara O, Lee YP, Chang CM, Chang KH, Bed'Hom B, Tixier-Boichard M. A global analysis of molecular markers and phenotypic traits in local chicken breeds in Taiwan. Anim Genet 2011; 43:172-82. [PMID: 22404353 DOI: 10.1111/j.1365-2052.2011.02226.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Molecular and phenotypic data have been combined to characterize the genetic diversity of six local chicken breeds maintained with a long-term conservation programme. Hua-Tung, Hsin-Yi, Ju-Chi and Quemoy originated from Taiwan, Shek-Ki is from South China, and Nagoya is from Japan. Molecular tools included 24 microsatellite markers, melanocortin 1 receptor (alpha melanocyte stimulating hormone receptor) (MC1R), the LEI0258 marker located within the major histocompatibility complex (MHC), and mitochondrial DNA. Performance was recorded on the same individuals for body weight, panting rate in summer and antibody response (antigens: Newcastle disease virus and sheep red blood cells). A multivariate method previously proposed for taxonomy was used to combine the different data sets. Melanocortin 1 receptor (alpha melanocyte stimulating hormone receptor) and the MCW330 marker contributed the most to the first axis of the multiple coinertia analysis of molecular markers. Melanocortin 1 receptor (alpha melanocyte stimulating hormone receptor) showed evidence of selection, probably related to its effect on feather colour. The MHC exhibited a large diversity, with 16 alleles of the LEI0258 marker. Immune response traits contributed the most to the principal component analysis of phenotypic data. Eight mitochondrial DNA haplotypes related to clades A, B, C and E were distributed across breeds and revealed an important contribution of Indian and European breeds to Ju-Chi, Quemoy and Hsin-Yi. Phenotypic data contributed less than molecular data to the combined analysis, and two markers, LEI0258 and LEI0228, contributed the most. The combined analysis could clearly discriminate all breeds, except Ju-Chi, which was similar to Quemoy for many criteria, except immune response.
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Affiliation(s)
- C S Chang
- Department of Animal Science, National Chung-Hsing University, Taichung 402, Taiwan.
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Abstract
Abstract
A simple and sensitive high-performance liquid chromatography (HPLC) method for the determination of asarone in rabbit plasma has been developed. Up to 0·1 mL of plasma containing asarone was deproteinated by acetonitrile, which contained an internal standard (indomethacin). The supernatant was injected into a Nucleosil 7C18 column using acetonitrile-water-triethylamine (55:45:0·1 v/v, pH 5·4–5·5, adjusted with orthophosphoric acid) as the mobile phase and UV detection at 257 nm, followed by UV spectrum identification (between 200 and 380 nm) with a photodiode array detector. The method is rapid, easily reproduced, selective and sensitive. It was applied to pharmacokinetic studies of asarone in rabbit, after 5, 10, or 20 mg kg−1 intravenous administration. Rapid distribution followed by a slower elimination phase was observed from the plasma concentration–time curve. The plasma disposition at each dose fitted well to a two-compartment open model and the terminal disposition became much slower as the dose was increased, suggesting a nonlinear dose-dependent plasma asarone disposition.
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Affiliation(s)
- T H Tsai
- National Research Institute of Chinese Medicine, Taipei, Taiwan
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Chen CF, Lee JF, Wang D, Shen CY, Shen KL, Lin MH. Water extract of Zizyphus Jujube attenuates ischemia/reperfusion-induced liver injury in rats (PP106). Transplant Proc 2010; 42:741-3. [PMID: 20430161 DOI: 10.1016/j.transproceed.2010.03.020] [Citation(s) in RCA: 10] [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: 10/19/2022]
Abstract
AIMS Ischemia and reperfusion (I/R) injuries in the liver remain important clinical problems. Free oxygen radicals and nitrosative stress have been shown to be involved in the pathogenesis I/R-related liver injury. The purpose of this study was to characterize the effects of an extract of Zizyphus Jujube (ZJ), which has strong antioxidant effects, on I/R-induced liver injury. MATERIALS AND METHODS Ischemia (I) was induced in rat livers by clamping the common hepatic artery and portal vein for 40 minutes, after which flow was restored, and the liver was reperfused for 90 minutes. Blood samples were collected prior to I and after reperfusion to assay blood levels of alanine transaminase (ALT), lactic dehydrogenase (LDH), oxygen radical (OH), and nitric oxide (NO). In the pharmacologic intervention group a water extract of the fruit of ZJ was administered orally to rats (100 mg/mL for 7 days) that were subsequently exposed to the I/R liver injury. RESULTS The data showed that reperfusion (R) of the liver produced increases in blood concentrations of ALT (41.9+/-8.2 vs 338.0+/-89.6; P<.01; N=7) and LDH (317+/-129 vs 4073+/-950; P<.001; N=7). Oxygen radicals (55.1+/-14.3 vs 262.4+/-60.3; P<.001; N=7) and NO (69.3+/-14.9 vs 121.6+/-27.1; P<.01; N=7) also increased significantly in this R group. In the ZJ intervention group the liver injury, oxidative stress, and nitrosative stress were all significantly attenuated. CONCLUSION These results suggested that I/R-induced liver injury with white blood cell activation, oxidative stress, and nitrosative stress. Pretreatment with an extract of ZJ, which shows high antioxidant effects, significantly attenuated the I/R-induced liver injury.
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Affiliation(s)
- C F Chen
- Division of Gastroenterology, Department of Internal Medicine, Cheng Hsin General Hospital and Department of Healthcare Information, School of Health, Ming Chuan University, Taipei, Taiwan
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Chen KH, Chao D, Liu CF, Chen CF, Wang D. Ischemia and reperfusion of the lung tissues induced increase of lung permeability and lung edema is attenuated by dimethylthiourea (PP69). Transplant Proc 2010; 42:748-50. [PMID: 20430163 DOI: 10.1016/j.transproceed.2010.03.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
This study sought to determine whether oxygen radical scavengers of dimethylthiourea (DMTU), superoxide dismutase (SOD), or catalase (CAT) pretreatment attenuated ischemia-reperfusion (I/R)-induced lung injury. After isolation from a Sprague-Dawley rat, the lungs were perfused through the pulmonary artery cannula with rat whole blood diluted 1:1 with a physiological salt solution. An acute lung injury was induced by 10 minutes of hypoxia with 5% CO2-95% N2 followed by 65 minutes of ischemia and then 65 minutes of reperfusion. I/R significantly increased microvascular permeability as measured by the capillary filtration coefficient (Kfc), lung weight-to-body weight ratio (LW/BW), and protein concentration in bronchoalveolar lavage fluid (PCBAL). DMTU pretreatment significantly attenuated the acute lung injury. The capillary filtration coefficient (P<.01), LW/BW (P<.01) and PCBAL (P<.05) were significantly lower among the DMTU-treated rats than hosts pretreated with SOD or CAT. The possible mechanisms of the protective effect of DMTU in I/R-induced lung injury may relate to the permeability of the agent allowing it to scavenge intracellular hydroxyl radicals. However, whether superoxide dismutase or catalase antioxidants showed protective effects possibly due to their impermeability of the cell membrane not allowing scavenging of intracellular oxygen radicals.
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Affiliation(s)
- K H Chen
- Department of Nursing and Management, Jen-Teh Junior College of Medicine, Miouli County, Taiwan
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Hu TH, Whang LM, Lei CN, Chen CF, Chiang TY, Lin LB, Chen HW, Liu PWG, Cheng SS. Evaluation of methanogenic treatment of TMAH (tetra-methyl ammonium hydroxide) in a full-scale TFT-LCD wastewater treatment process. Water Sci Technol 2010; 62:403-409. [PMID: 20651446 DOI: 10.2166/wst.2010.284] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
This study evaluated TMAH biodegradation under methanogenic conditions. Under methanogenic conditions, a sludge from a full-scale UASB treating TFT-LCD wastewater was able to degrade 2,000 mg/L of TMAH within 10 h and attained a specific degradation rate of 19.2 mgTMAH/gVSS-h. Furthermore, several chemicals including some surfactants, DMSO, and sulfate were examined for their potential inhibitory effects on TMAH biodegradation under methanogenic conditions. The results indicated that surfactant S1 (up to 2%) and DMSO (up to 1,000 mg/L) presented negligible inhibitory effects on TMAH degradation, while surfactant S2 (0.2-1%) might inhibit methanogenic reaction without any TMAH degradation for 3-5 h. At sulfate concentrations higher than 300 mg/L, a complete inhibition of methanogenic reaction and TMAH biodegradation was observed. Results from cloning and sequencing of archaeal 16S rRNA gene fragments showed that Methanosarcina barkeri and Methanosarcina mazei were the dominant methanogens in the UASB treating TMAH-containing TFT-LCD wastewater.
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Affiliation(s)
- T H Hu
- Department of Environmental Engineering, National Cheng Kung University, 1 University Road, Tainan City 701, Chinese Taiwan.
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Lin JY, Chen CF, Lei FR, Hsieh CD. Field observations and management strategy for hot spring wastewater in Wulai area, Taiwan. Water Sci Technol 2010; 61:2309-2316. [PMID: 20418628 DOI: 10.2166/wst.2010.088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Hot springs are important centers for recreation and tourism. However, the pollution that may potentially be caused by hot spring wastewater has rarely been discussed. More than half of Taiwan's hot springs are located in areas where the water quality of water bodies is to be protected, and untreated wastewater could pollute the receiving water bodies. In this study, we investigate hot spring wastewater in the Wulai area, one of Taiwan's famous hot spring resorts. Used water from five hot spring hotels was sampled and ten sampling events were carried out to evaluate the changes in the quality of used water in different seasons, at different periods of the week, and from different types of hotels. The concentrations of different pollutants in hot spring wastewater were found to exhibit wide variations, as follows: COD, 10-250 mg/L; SS, N.D.-93 mg/L; NH(3)-N, 0.01-1.93 mg/L; TP, 0.01-0.45 mg/L; and E. coli, 10-27,500 CFU/100 mL. The quality of hot spring wastewater depends on the operation of public pools, because this affects the frequency of supplementary fresh water and the outflow volume. Two management strategies, namely, onsite treatment systems and individually packaged treatment equipment, are considered, and a multi-objective optimization model is used to determine the optimal strategy.
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Affiliation(s)
- J Y Lin
- Department of Civil Engineering and Water Environment Research Center, National Taipei University of Technology, Taipei, Chinese Taiwan.
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