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Mao SY, Duan XH. [Analysis of amelogenesis imperfecta with abnormal tooth eruption caused by FAM83H mutation]. Zhonghua Kou Qiang Yi Xue Za Zhi 2023; 58:933-937. [PMID: 37659852 DOI: 10.3760/cma.j.cn112144-20230318-00094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/04/2023]
Abstract
Objective: FAM83H is one of the major pathogenic genes of amelogenesis imperfecta (AI). Previous studies focused on the abnormal enamel development and mineralization caused by the mutations in FAM83H. Here we aimed to observe other effects of FAM83H mutations on tooth eruption besides AI through clinical case analysis. Methods: Published AI cases with FAM83H mutations were searched through PubMed database, and the characteristics of tooth eruption of each cases were counted and analyzed. The literature search range was from January 1, 2008 to February 28, 2023, using the keywords FAM83H and amelogenesis imperfecta. The included literature must provide the detailed radiographic imaging or dental eruption information of AI patients, as well as FAM83H gene mutation information. The basic clinical information, tooth phenotypes, and mutations of all the enrolled cases were collected and analyzed in order to find the characteristics of abnormal tooth eruption. Results: Among 45 papers about FAM83H related to AI, twenty meeting the inclusion criteria were selected, involving 50 AI patients carrying FAM83H mutations who had radiographic image data or the detailed description of tooth eruption. A total of 34 abnormal erupted teeth were from 12 patients (12/50, 24%), among which 85% (29/34) had clear eruption path without any eruption obstructions, either embedded (25/34, 74%) or partially erupted (4/34, 12%). Tooth position analysis found that abnormal eruption of canines and second molars accounted for the highest proportion, accounting for 38% (13/34) respectively. Conclusions: The mutations in FAM83H may lead to amelogenesis imperfecta as well as abnormal tooth eruption at specific tooth positions.
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Affiliation(s)
- S Y Mao
- Department of Oral Biology & Clinic of Oral Rare Diseases and Genetic Diseases, School of Stomatology, The Fourth Military Medical University, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - X H Duan
- Department of Oral Biology & Clinic of Oral Rare Diseases and Genetic Diseases, School of Stomatology, The Fourth Military Medical University, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
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Ruan WY, Zhang YL, Zheng SG, Sun Y, Fan ZP, Song YL, Sun HC, Wang WM, Dai JW, Zhao ZJ, Zhang TT, Chen D, Pan YC, Jiang YG, Wang XD, Zheng LW, Zhu QL, He M, Xu BS, Jia ZL, Han D, Duan XH. [Expert consensus on the biobank development of oral genetic diseases and rare diseases and storage codes of related biological samples from craniofacial and oral region]. Zhonghua Kou Qiang Yi Xue Za Zhi 2023; 58:749-758. [PMID: 37550034 DOI: 10.3760/cma.j.cn112144-20230523-00210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
The biological samples of oral genetic diseases and rare diseases are extremely precious. Collecting and preserving these biological samples are helpful to elucidate the mechanisms and improve the level of diagnose and treatment of oral genetic diseases and rare diseases. The standardized construction of biobanks for oral genetic diseases and rare diseases is important for achieving these goals. At present, there is very little information on the construction of these biobanks, and the standards or suggestions for the classification and coding of biological samples from oral and maxillofacial sources, and this is not conducive to the standardization and information construction of biobanks for special oral diseases. This consensus summarizes the background, necessity, principles, and key points of constructing the biobank for oral genetic diseases and rare diseases. On the base of the group standard "Classification and Coding for Human Biomaterial" (GB/T 39768-2021) issued by the National Technical Committee for Standardization of Biological Samples, we suggest 76 new coding numbers for different of biological samples from oral and maxillofacial sources. We hope the consensus may promote the standardization, and smartization on the biobank construction as well as the overall research level of oral genetic diseases and rare diseases in China.
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Affiliation(s)
- W Y Ruan
- Clinic of Oral Rare Diseases and Genetic Diseases & Department of Oral Biology, School of Stomatology, The Fourth Military Medical University, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - Y L Zhang
- Clinic of Oral Rare Diseases and Genetic Diseases & Department of Oral Biology, School of Stomatology, The Fourth Military Medical University, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - S G Zheng
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y Sun
- Department of Oral Implantology, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China
| | - Z P Fan
- Capital Medical University School of Stomatology & Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing 100050, China
| | - Y L Song
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - H C Sun
- Department of Oral Pathology, Hospital of Stomatology, Jilin University, Changchun 130021, China
| | - W M Wang
- Department of Oral Mucosal Diseases, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - J W Dai
- Department of Oral and Craniomaxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & College of Stomatology, Shanghai Jiao Tong University & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China
| | - Z J Zhao
- The First Outpatient Department, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110002, China
| | - T T Zhang
- Department of Oral and Maxillofacial Surgery, Stomatological Hospital, Tianjin Medical University, Tianjin 300070, China
| | - D Chen
- Department of Polyclinics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y C Pan
- Department of Orthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University & Jiangsu Province Key Laboratory of Oral Diseases & Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing 210029, China
| | - Y G Jiang
- Department of Cariology & Endodontics, College of Stomatology, Xi'an Jiaotong University, Xi'an 710004, China
| | - X D Wang
- Department of Oral and Craniomaxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & College of Stomatology, Shanghai Jiao Tong University & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China
| | - L W Zheng
- Deparment of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University & State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Chengdu 610041, China
| | - Q L Zhu
- Department of Operative Dentistry and Endodontics, School of Stomatology, The Fourth Military Medical University, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - M He
- Deparment of Pediatric Dentistry, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - B S Xu
- Department of Oral and Maxillofacial Surgery, Institute of Stomatological Research, Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University & Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, China
| | - Z L Jia
- Deparment of Cleft Lip and Palate Surgery, West China Hospital of Stomatology, Sichuan University & State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Chengdu 610041, China
| | - D Han
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - X H Duan
- Clinic of Oral Rare Diseases and Genetic Diseases & Department of Oral Biology, School of Stomatology, The Fourth Military Medical University, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
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3
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Duan XH. [Application status and prospect of genetic counseling in stomatology in China]. Zhonghua Kou Qiang Yi Xue Za Zhi 2023; 58:759-765. [PMID: 37550035 DOI: 10.3760/cma.j.cn112144-20230422-00169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
Oral genetic diseases and rare diseases are special oral diseases with low prevalence, complex clinical characteristics and serious condition. In addition to regular oral diagnosis and treatment, multidisciplinary diagnosis and treatment including genetic counseling should also be carried out for such diseases. This article reviews the basic content of genetic counseling, the current application status of genetic counseling in the field of stomatology in China and the problems faced, such as the lack of genetic counseling personnel and the popularization of genetic counseling knowledge. Aims to promote the application of genetic counseling in dental practice in the future, it is proposed to carry out genetic training for stomatologists, promote the integration of medical genetic expertise and oral knowledge, as well as discipline cooperation, and strengthen the standardization of genetic counseling for oral diseases.
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Affiliation(s)
- X H Duan
- Clinic of Oral Rare Diseases and Genetic Diseases & Department of Oral Biology, School of Stomatology, The Fourth Military Medical University, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
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Tang F, Chen PF, Li FZ, Kuang DL, Wang JX, Wan L, Han XW, Ren JZ, Duan XH. [Clinical value of emergency endovascular embolization in the interventional treatment for oral hemorrhage caused by carcinoma]. Zhonghua Kou Qiang Yi Xue Za Zhi 2021; 56:370-373. [PMID: 33832039 DOI: 10.3760/cma.j.cn112144-20200603-00312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
To evaluate the clinical value of emergency endovascular embolization in the interventional treatment for oral hemorrhage caused by carcinoma, 32 patients with oral hemorrhage caused by carcinoma, who received emergency endovascular embolization due to unsatisfactory hemostatic effect of conventional conservative treatment in the First Affiliated Hospital of Zhengzhou University from January 2014 to December 2019, were included in this study and their clinical data, laboratory data and imaging information were retrospectively analyzed. There were 16 males and 16 females, aged (60.6±13.6) years (34-88 years). Technical successful rate of emergency endovascular embolization, immediate successful rate of controlling hemorrhage, blood pressure before and after operation, hemoglobin before and after operation, postoperative complications and recurrence rate of oral hemorrhage were statistically analyzed. Results showed that technical successful rate of operation and immediate successful rate of controlling oral hemorrhage are both 100% (32/32). Recurrent oral hemorrhage occurred in 4 patients (13%). The hemorrhagic shock symptoms of all patients were significantly improved after interventional therapy. After operation, local swelling happened in 34% (11/32) patients and intermittent local pain happened in 22% (7/32) within 24 hours; the swelling and the pain gradually disappeared from 2nd to 5th days. Mild complications of transient fever happened in 9% (3/32) patients and disappeared spontaneously in the short term. No serious complications such as blindness, cerebrovascular accident or central nervous system disturbance occurred in all patients after operations. During the whole follow-up period (1 to 12 months), a total of 8 patients died. The causes of death were progression and metastasis of carcinoma (n=4), heart failure (n=2), severe pneumonia (n=1) and respiratory failure caused by recurrent oral hemorrhage (n=1). Owing to the remarkable short-term curative effect, repeatable operation, low recurrence rate of oral hemorrhage and low incidence of complications, emergency endovascular embolization can be used in the clinical therapy and application of oral hemorrhage caused by carcinoma.
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Affiliation(s)
- F Tang
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, & Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou 450052, China
| | - P F Chen
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, & Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou 450052, China
| | - F Z Li
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, & Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou 450052, China
| | - D L Kuang
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, & Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou 450052, China
| | - J X Wang
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, & Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou 450052, China
| | - L Wan
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, & Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou 450052, China
| | - X W Han
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, & Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou 450052, China
| | - J Z Ren
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, & Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou 450052, China
| | - X H Duan
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, & Interventional Treatment and Clinical Research Center of Henan Province, Zhengzhou 450052, China
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Duan XH. [The first edition of oral rare diseases list]. Zhonghua Kou Qiang Yi Xue Za Zhi 2020; 55:494-500. [PMID: 32634889 DOI: 10.3760/cma.j.cn112144-20200226-00092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Oral rare diseases are characterized by low prevalence and complex clinical features. It is not clear that which kind of diseases belong to oral rare diseases. In order to make a consensus and improve the level of diagnosis and treatment of oral rare diseases, Duan Xiaohong, the first chair of Society of Oral Genetic Diseases and Rare Diseases, Chinese Stomatological Association, progosed the first edition of oral rare diseases list, and the whole society discussed the list and finally made an agreement. The list includes 139 rare diseases with typical oral and craniofacial characteristics, and provides their Chinese names, English names, International Classification of Diseases 11th Revision (ICD-11) codes, Online Mendelian Inheritance in Man (OMIM) numbers, prevalence and simple interpretations.
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Affiliation(s)
- X H Duan
- Clinic of Oral Rare Diseases and Genetic Diseases, Department of Oral Biology, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
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Wang T, Yan YF, Yang L, Huang YZ, Duan XH, Su KH, Liu WL. Effects of Zuojin pill on depressive behavior and gastrointestinal function in rats with chronic unpredictable mild stress: Role of the brain-gut axis. J Ethnopharmacol 2020; 254:112713. [PMID: 32109545 DOI: 10.1016/j.jep.2020.112713] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [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: 08/02/2019] [Revised: 12/27/2019] [Accepted: 02/22/2020] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Zoujin pill (ZJP), a medication used to treat gastrointestinal disorders since the 15th Century in China, have been reported to exert anti-depressant effects in various models. STUDY AIM To assess the effects of ZJP on gastrointestinal function and depressive behavior in rats under chronic unpredictable mild stress (CUMS), and to examine the underlying mechanisms related to brain-gut axis. METHODS The rats suffered the stressor once daily for 5 weeks. ZJP (0.6 and 1.2 g/kg) and fluoxetine (15 mg/kg) as positive control were administered to the rats through gastric intubation once daily for 5 consecutive weeks. The anti-depression effects were compared by performing sucrose preference tests and open field tests. Gastrointestinal motility was investigated by determining the gastrointestinal transit rate and by electrogastrogram. The serum levels of the gastrointestinal hormone (GAS, MOT, VIP, SP), inflammatory cytokine (IL-1β, IL-6; , TNFα) and glucagon-like peptide-1 (GLP-1) were assayed by enzyme-linked immunosorbent assay. For monoamine neurotransmitters (NE, 5-HT, DA), the levels were determined by high-performance liquid chromatography and electrochemical detection in conjunction, which was applied on the samples taken from the hypothalamus, hippocampus, and striatum. RESULTS The depression-like symptoms among rats under CUMS were significantly relieved by ZJP administration (0.6 and 1.2 g/kg). Gastrointestinal motility was also improved by restoring gastric electrical rhythm and promoting gastrointestinal propulsion. The ZJP at 0.6 g/kg dosage obviously up-regulated 5-HT and DA levels in hippocampus. The ZJP at 1.2 g/kg dosage could increase 5-HT and DA levels in hypothalamus, striatum, and hippocampus, while down-regulated the NE level in hypothalamus and hippocampus. ZJP also reversed the alterations in serum gastrointestinal hormones. Furthermore, treatment with ZJP significantly reduced levels of IL-1β, IL-6 and TNF-α and increased serum GLP-1 compared with the CUMS group. Fluoxetine also exerted similar anti-depressant effects in the absence of effects on gastrointestinal motility and the levels of serum hormone, inflammatory cytokine and GLP-1. CONCLUSION ZJP imposed anti-depressant and gastrointestinal regulating functions in rats under CUMS, suggesting potential clinical application. .
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Affiliation(s)
- Tao Wang
- Jiangsu Key Laboratory of Drug Screening, China Pharmaceutical University, Nanjing, 210009, PR China
| | - Yan-Feng Yan
- Department of Gastroenterology, Nanjing Integrated Traditional Chinese and Western Medicine Hospital, Affiliated with Nanjing University of Chinese Medicine, Nanjing, 210014, PR China
| | - Lu Yang
- Department of Gastroenterology, Nanjing Integrated Traditional Chinese and Western Medicine Hospital, Affiliated with Nanjing University of Chinese Medicine, Nanjing, 210014, PR China
| | - Yu-Zhen Huang
- Department of Gastroenterology, Nanjing Integrated Traditional Chinese and Western Medicine Hospital, Affiliated with Nanjing University of Chinese Medicine, Nanjing, 210014, PR China
| | - Xin-Hui Duan
- Nanjing University of Chinese Medicine, Nanjing, 210023, PR China
| | - Kun-Han Su
- Nanjing University of Chinese Medicine, Nanjing, 210023, PR China
| | - Wan-Li Liu
- Department of Gastroenterology, Nanjing Integrated Traditional Chinese and Western Medicine Hospital, Affiliated with Nanjing University of Chinese Medicine, Nanjing, 210014, PR China.
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Liu JF, Duan XH, Ren JZ, Jiao DC, Han XW. [Comparative effect of CalliSpheres drug loading microspheres and lipiodol transarterial chemoembolization in the treatment of huge primary liver cancer]. Zhonghua Gan Zang Bing Za Zhi 2019; 27:460-462. [PMID: 31357764 DOI: 10.3760/cma.j.issn.1007-3418.2019.06.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- J F Liu
- Department of Interventional Radiology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - X H Duan
- Department of Interventional Radiology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - J Z Ren
- Department of Interventional Radiology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - D C Jiao
- Department of Interventional Radiology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - X W Han
- Department of Interventional Radiology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China; Intervention and Clinical Research Center of Henan Province, Zhengzhou 450002, China
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Jiang ZN, Duan XH, Xia L, Wang N, Fu YJ. [Histopathological observation of portal hypertensive enteropathy]. Zhonghua Bing Li Xue Za Zhi 2018; 47:953-954. [PMID: 30522179 DOI: 10.3760/cma.j.issn.0529-5807.2018.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
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Yang GL, Zhang LH, Liu Q, Wang ZL, Duan XH, Huang YR, Bo JJ. Commentary on "A novel treatment strategy for newly diagnosed high-grade T1 bladder cancer: Gemcitabine and cisplatin adjuvant chemotherapy-A single-institution experience.". Urol Oncol 2018; 36:346-347. [PMID: 29859729 DOI: 10.1016/j.urolonc.2018.05.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 11/18/2022]
Abstract
BACKGROUND Management of high-grade T1 (formerly T1G3) bladder cancer continues to be controversial. Should patients with T1G3 bladder cancer have an immediate radical cystectomy or should they receive intravesical bacillus Calmette-Guérin preserving bladder? Gemcitabine and cisplatin (GC) adjuvant chemotherapy may help to strike a balance between intravesical and early cystectomy. For purposes of this study, we continue to refer high-grade T1 lesion as "T1G3." OBJECTIVE To evaluate the characteristics and the long-term outcome of GC adjuvant chemotherapy in T1G3 bladder cancer after transurethral resection of bladder tumor (TURBT). MATERIALS AND METHODS We, retrospectively, reviewed 48 patients who were newly diagnosed with T1G3 bladder cancer between January 2009 and December 2012. A total of 48 patients received 4 cycles of GC adjuvant chemotherapy after TURBT. One month after 4 cycles of GC adjuvant chemotherapy, response was evaluated by re-TURBT. Median follow-up was 59.5 (range: 18-70) months, all patients have been observed for more than 3 years. Salvage cystectomy was recommended for patients with persistent disease and for tumor progression after initial complete response. RESULT Complete response was achieved in 44 (91.7%) patients. Of complete responders, 5 patients experienced recurrence and 5 patients showed progression. The progression rate and disease-specific survival rate were 10.4% and 91.7% at 3 years, respectively. More than 80% of survivors preserved their bladder. Kaplan-Meier curves showed that concomitant carcinoma in situ (CIS) was the only factor that had an influence on progression-free survival (P = 0.022) and disease-specific survival (P = 0.017). Concomitant CIS was the prognostic factor for progression rate and disease-specific survival rate at 3 years (P = 0.008 and P = 0.035). CONCLUSION GC adjuvant chemotherapy is a safe conservative treatment for T1G3 bladder cancer, but effective is really a phase II study. Patients with T1G3 bladder cancer with concomitant CIS should be treated more aggressively because of the high risk of progression.
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Abstract
Previous research has shown that microRNA-141 (miR-141) expression levels are associated with survival in several types of cancer. In the present study, we investigated the clinical significance and prognostic value of miR-141 in gastric cancer. Paired tissue specimens (tumor and adjacent normal mucosa) from 95 patients with gastric cancer were obtained at the Department of General Surgery, Xiangya Hospital, Central South University from March 2009 to February 2014. The levels of miR-141 in cancerous and corresponding non-cancerous tissues were detected by quantitative reverse transcription-polymerase chain reaction. Associations between clinicopathological parameters and miR-141 expression were evaluated using chi-square tests. Overall survival was calculated and survival curves were plotted using the Kaplan-Meier method; differences between groups were compared using log-rank tests. Compared to the matched normal gastric mucosa, gastric cancer tissues had significantly lower miR-141 expression levels (P < 0.001). This decreased miR-141 expression was significantly associated with tumor differentiation (P = 0.044), positive lymph node metastasis (P = 0.010), distant metastasis (P < 0.001), and advanced tumor-node-metastasis (TNM) stage (P < 0.001). Furthermore, a significant relationship was found between miR-141 expression and overall survival (P = 0.012, log-rank test). Cox regression analysis revealed that lymph node metastasis (P = 0.003), distant metastasis (P = 0.001), TNM stage (P < 0.001), and miR- 141 expression (P = 0.007) were independent prognostic factors in patients with gastric cancer. Our data provide evidence that the downregulation of miR-141 may contribute to the aggressive progression and poor prognosis of human gastric cancer.
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Affiliation(s)
- Y B Lu
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - J J Hu
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - W J Sun
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - X H Duan
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - X Chen
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
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Wang X, Peng JH, Duan XH, Srinivasakannan C. Preparation of modified semi-coke by microwave heating and adsorption kinetics of methylene blue. J Microw Power Electromagn Energy 2013; 47:110-125. [PMID: 24779145 DOI: 10.1080/08327823.2013.11689851] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Preparation of modified semi-coke has been achieved, using phosphoric acid as the modifying agent, by microwave heating from virgin semi-coke. Process optimization using a Central Composite Design (CCD) design of Response Surface Methodology (RSM) technique for the preparation of modifies semi-coke is presented in this paper. The optimum conditions for producing modified semi-coke were: concentration of phosphoric acid 2.04, heating time 20 minutes and temperature 587 degrees C, with the optimum iodine of 862 mg/g and yield of 47.48%. The textural characteristics of modified semi-coke were analyzed using scanning electron microscopy (SEM) and nitrogen adsorption isotherm. The BET surface area of modified semi-coke was estimated to be 989.60 m2/g, with the pore volume of 0.74 cm3/g and a pore diameter of 3.009 nm, with micro-pore volume contributing to 62.44%. The Methylene Blue monolayer adsorption capacity was found to be mg/g at K. The adsorption capacity of the modified semi-coke highlights its suitability for liquid phase adsorption application with a potential usage in waste water treatment.
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Jin W, Qu WW, Srinivasakannan C, Peng JH, Duan XH, Zhang SM. Process optimization of preparation of ZnO-porous carbon composite from spent catalysts using one step activation. J Nanosci Nanotechnol 2012; 12:6231-6239. [PMID: 22962730 DOI: 10.1166/jnn.2012.6426] [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] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The process parameters of one step preparation of ZnO/Activated Carbon (AC) composite materials, from vinyl acetate synthesis spent catalyst were optimized using response surface methodology (RSM) and the central composite rotatable design (CCD). Regeneration temperature, time and flow rate of CO2 were the process variables, while the iodine number and the yield were the response variables. All the three process variables were found to significantly influence the yield of the regenerated carbon, while only the regeneration temperature and CO2 flow rate were found to significantly affect the iodine number. The optimized process conditions that maximize the yield and iodine adsorption capacity were identified to be a regeneration temperature of 950 degrees C, time of 120 min and flow rate of CO2 of 600 ml/min, with the corresponding yield and iodine number to be in excess of 50% and 1100 mg/g. The BET surface area of the regenerated composite was estimated to be 1263 m2/g, with micropore to mesopore ratio of 0.75. The pore volume was found to have increased 6 times as compared to the spent catalyst. The composite material (AC/ZnO) with high surface area and pore volume coupled with high yield augur economic feasibility of the process. EDS and XRD spectrum indicate presence of ZnO in the regenerated samples.
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Affiliation(s)
- Wen Jin
- State Key Laboratory Breeding Base of Complex Nonferrous Metal Resources Cleaning Utilization in Yunnan Province, Kunming 650093, China
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Abstract
OBJECTIVE To determine the attitude of some Chinese orthodontists towards the relationship between orthodontic treatment and temporomandibular disorders (TMDs). SUBJECTS AND METHODS 25 orthodontists, in six public hospitals (Xi'an, the capital of Shaanxi Province, China), were asked to complete a 10-item questionnaire concerning orthodontics/TMD. RESULTS 84% of orthodontists often asked their patients about the signs and symptoms of TMD before orthodontic treatment and 92% reported examining the TMJ region. 76% of orthodontists thought orthodontic treatment may possibly lead to a greater incidence of TMD, while 84 per cent claimed that orthodontic treatment might prevent TMD. Methods of orthodontic treatment, patient's age, and occlusal interference were regarded as risk factors leading to increased incidence of TMD. CONCLUSIONS Some Chinese orthodontists realise the importance of the relationship between orthodontic treatment and TMD. Most thought that unsuitable orthodontic treatment might increase the development of TMD and that orthodontic treatment could prevent TMD.
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Affiliation(s)
- Y Mao
- Prosthodontic Department, Stomatological College, The Fourth Military Medical University, Xi'an, The People's Republic of China.
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14
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Abstract
We report on a conceptual two degrees of freedom (2 DOF) human gait model, which incorporates nonlinear joint stiffness as a stabilizing agent. Specifically, muscle spring-like property provides inherent stability during gait movement using a nonlinear angular spring and dash pot at each joint. The instability problem of the gait model in direct dynamic analysis is overcome by simulating the human co-contraction muscle function. By developing dynamic system stability requirements and hypothesizing a minimum joint stiffness criterion, we determine time-varying joint stiffness. Optimum joint stiffnesses are present for varying gait pattern, stride lengths and cadences. We conclude that nonlinear joint stiffness can be incorporated into gait models to overcome stability problems inherent in such linkage models.
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Affiliation(s)
- X H Duan
- Institute of Gerontology, University of Michigan, Ann Arbor 48109, USA
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