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Lv A, BianBaZhuoMa, DeQiong, DaWaZhuoMa, PuBuZhuoMa, Yao D, LangJiQuZhen, Lu Y, Cai L, DaZhen, Tang C, BianBaZhuoMa, Zhang Y, Yin J, Ding T, DaWaCang, Wu M, Chen Y, Li Y. Effect of COVID-19 infection on pregnant women in plateau regions. Public Health 2024; 229:57-62. [PMID: 38401193 DOI: 10.1016/j.puhe.2023.12.029] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 12/04/2023] [Accepted: 12/28/2023] [Indexed: 02/26/2024]
Abstract
OBJECTIVE The present study aims to explore the effect of COVID-19 infection on pregnant women in plateau regions. STUDY DESIGN Data from 381 pregnant women infected with COVID-19 who underwent prenatal examination or treatment at Women and Children's Hospital of Tibet Autonomous Region between January 2020 and December 2022 and 314 pregnant women not infected with COVID-19 were retrospectively collected. METHODS The study participants were divided into an infected and non-infected group according to whether they were infected with COVID-19. Basic information (ethnicity, age, body mass index and gestational age [GA]), vaccination status, intensive care unit (ICU) admission and delivery outcomes were compared. Binary logistic regression was used to analyse the influencing factors of ICU admission. RESULTS The results revealed significant differences in the GA, vaccination rate, blood pressure, partial pressure of oxygen, white blood cell (WBC) count, ICU admission rate, preeclampsia rate, forearm presentation rate, thrombocytopenia rate, syphilis infection rate and placental abruption rate between the two groups (P < 0.05). A univariate analysis showed that COVID-19 infection, hepatitis B virus infection, the WBC count and hypoproteinaemia were risk factors for ICU admission. The results of the multivariate analysis of the ICU admission of pregnant women showed that COVID-19 infection (odds ratio [OR] = 4.271, 95 % confidence interval [CI]: 3.572-5.820, P < 0.05) was a risk factor for ICU admission and the WBC count (OR = 0.935, 95 % CI: 0.874-0.947, P < 0.05) was a protective factor for ICU admission. CONCLUSION Pregnant women are vulnerable to the adverse consequences of COVID-19 infection, and public health measures such as vaccination are needed to protect this population subgroup.
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Affiliation(s)
- A Lv
- Department of Obstetrics and Gynecology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, NO. 1 DaHua Road, Dong Dan, Beijing, 100730, PR China; Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - BianBaZhuoMa
- Lhasa People's Hospital, No. 1, Beijing Middle Road, Chengguan District, Lhasa, Tibet Autonomous Region, 850000, PR China
| | - DeQiong
- Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - DaWaZhuoMa
- Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - PuBuZhuoMa
- Lhasa People's Hospital, No. 1, Beijing Middle Road, Chengguan District, Lhasa, Tibet Autonomous Region, 850000, PR China
| | - D Yao
- Nyingchi People's Hospital, No. 11, Water Garden, Bayi Town, Bayi District, Nyingchi City, Tibet Autonomous Region, 860000, PR China
| | - LangJiQuZhen
- Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - Y Lu
- Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - L Cai
- Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - DaZhen
- Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - C Tang
- Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - BianBaZhuoMa
- Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - Y Zhang
- Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - J Yin
- Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - T Ding
- Women and Children's Hospital of Tibet Autonomous Region, NO. 10 Chagu Avenue, Doilungdêqên District, Liuwu New Area, Lhasa, Tibet Autonomous Region, 851414, PR China
| | - DaWaCang
- Tibet University Medical School, No. 10, Zangda East Road, Chengguan District, Lhasa, Tibet Autonomous Region, 850000, PR China
| | - M Wu
- Tibet University Medical School, No. 10, Zangda East Road, Chengguan District, Lhasa, Tibet Autonomous Region, 850000, PR China
| | - Y Chen
- Tibet University Medical School, No. 10, Zangda East Road, Chengguan District, Lhasa, Tibet Autonomous Region, 850000, PR China
| | - Y Li
- Department of Obstetrics and Gynecology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, NO. 1 DaHua Road, Dong Dan, Beijing, 100730, PR China.
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Ikenaga H, Masuda T, Yamamoto A, Moriwake R, Yoshida K, Ishikawa T, Yao D, Ono A, Hiratsuka J, Tamada T. Influence of splenomegaly on aortic and liver parenchymal CT numbers during contrast-enhance CT in patients with cirrhosis. Radiography (Lond) 2024; 30:382-387. [PMID: 38150883 DOI: 10.1016/j.radi.2023.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 12/05/2023] [Accepted: 12/10/2023] [Indexed: 12/29/2023]
Abstract
INTRODUCTION To compare CT (computed tomography) values for enhancement of the abdominal aorta and liver parenchyma during dynamic contrast enhancement (CE) CT in cirrhotic patients with and without splenomegaly (SM). METHODS We considered 258 patients (83 males and 46 females for the splenomegaly group, and 83 males and 46 females for the control group) for this retrospective study. We measured CT values in the abdominal aorta and hepatic parenchyma during the hepatic arterial (HAP) and portal venous (PVP) phases. The aortic CE at HAP and the hepatic parenchymal CE at PVP were compared between the two groups. For success rate of scans, we also calculated the optimal CE rates (>280 HU in the abdominal aorta and >50 HU in the hepatic parenchyma) for each group. RESULTS In the SM group, the CE for abdominal aorta was decreased during the aortic phase for a dynamic CE-CT (p < 0.05). When evaluating the success rates, they were found to be 65.1 % and 58.9 % in the SM group and 81.4 % and 72.3 % in the non-SM group (p < 0.05). CONCLUSION The success rate of scans and CE for the abdominal aorta during the aortic phase exhibited a significant decrease during dynamic CE-CT scans on patients with SM. Patients with SM may have reduced diagnostic ability with typical contrast injection protocols. IMPLICATIONS FOR PRACTICE It may be necessary to change the injection rates and contrast medium volume during CE-CT depending on the presence or absence of SM.
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Affiliation(s)
- H Ikenaga
- Department of Radiological Technology, Kawasaki Medical School Hospital, 577, Matsushima, Kurashiki-city, Okayama, 701-0192, Japan
| | - T Masuda
- Department of Radiological Technology, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare, 288, Matsushima, Kurashiki, Okayama, 701-0193, Japan.
| | - A Yamamoto
- Department of Radiology, Kawasaki Medical School, 577, Matsushima, Kurashiki-city, Okayama, 701-0192, Japan
| | - R Moriwake
- Department of Radiological Technology, Kawasaki Medical School Hospital, 577, Matsushima, Kurashiki-city, Okayama, 701-0192, Japan
| | - K Yoshida
- Department of Radiological Technology, Kawasaki Medical School Hospital, 577, Matsushima, Kurashiki-city, Okayama, 701-0192, Japan
| | - T Ishikawa
- Department of Radiological Technology, Kawasaki Medical School Hospital, 577, Matsushima, Kurashiki-city, Okayama, 701-0192, Japan
| | - D Yao
- Department of Radiological Technology, Kawasaki Medical School Hospital, 577, Matsushima, Kurashiki-city, Okayama, 701-0192, Japan
| | - A Ono
- Department of Radiological Technology, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare, 288, Matsushima, Kurashiki, Okayama, 701-0193, Japan
| | - J Hiratsuka
- Department of Radiological Technology, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare, 288, Matsushima, Kurashiki, Okayama, 701-0193, Japan
| | - T Tamada
- Department of Radiology, Kawasaki Medical School, 577, Matsushima, Kurashiki-city, Okayama, 701-0192, Japan
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Peng J, Zhang L, Wang L, Feng H, Yao D, Meng R, Liu X, Li X, Liu N, Tan B, Huang Z, Li S, Meng X. PD-L1 Inhibitors Combined with Thoracic Radiotherapy in First-Line Treatment of Extensive Stage Small Cell Lung Cancer: A Propensity Score-Matched, Real-World Study. Int J Radiat Oncol Biol Phys 2023; 117:S127-S128. [PMID: 37784327 DOI: 10.1016/j.ijrobp.2023.06.472] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The CREST study showed that the addition of thoracic radiotherapy (TRT) could improve the survival of extensive stage small cell lung cancer (ES-SCLC), but whether TRT can bring survival benefit in the era of immunotherapy is controversial. This study aims to explore the efficacy and safety of adding TRT to the combination of PD-L1 inhibitors and chemotherapy. MATERIALS/METHODS Thepatients who received PD-L1 inhibitors combined with platinum-based chemotherapy as the first-line treatment of ES-SCLC from January 2019 to December 2021 were retrospectively collected. According to whether they received TRT, they were divided into two groups, and the follow-up analysis was performed. Propensity score matching (PSM) in with a 1:1 ratio was performed to balance the baseline characteristics of the two cohorts. The endpoints were progression-free survival (PFS) and OS. RESULTS A total of 211 patients with ES-SCLC were enrolled, of whom 70 (33.2%) patients received standard therapy plus TRT as first-line treatment, and 141 (66.8%) patients in the control group received PD-L1 inhibitors plus chemotherapy. After PSM, a total of 65 pairs of patients were enrolled in the analysis. There were no significant differences in baseline characteristics between the two groups of patients who received TRT and those who did not. In all patients, the median PFS (mPFS) in the TRT group and the non-TRT groupwere 9.5 months and 7.2 months, respectively, with HR = 0.60 (95% CI 0.41-0.87, p = 0.007). The median OS (mOS) in the TRT group was also significantly longer than that in the non-TRT group (24.1 months vs. 18.5 months, HR = 0.53, 95% CI 0.32-0.85, p = 0.009). Multivariable analysis showed that baseline liver metastasis and bone metastasis were independent prognostic factors for OS. In terms of safety, immunotherapy combined with thoracic radiotherapy increased the incidence of treatment-related pneumonia (p<0.001), most of which were grade 1-2. CONCLUSION This real-world study shows that adding TRT to durvalumab or atezolizumab plus chemotherapy significantly improves survival in ES-SCLC. It leads to more treatment-related pneumonia, but most of them can be relieved after symptomatic treatment. This treatment model deserves to be explored in prospective clinical trials.
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Affiliation(s)
- J Peng
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - L Zhang
- Department of Thoracic Department, Hunan Cancer Hospital, Changsha, China
| | - L Wang
- Department of Medical Oncology, Baotou Cancer Hospital, Baotou, China
| | - H Feng
- Department of Clinical Oncology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - D Yao
- Department of Medical Oncology, Chaoyang Second Hospital, Chaoyang, China
| | - R Meng
- Department of Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - X Liu
- Department of Oncology Department, Jinzhou Medical University, Jinzhou, China, Jinzhou, China
| | - X Li
- Department of Respiratory and Critical Care, Chifeng Municipal Hospital, Chifeng, China
| | - N Liu
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin, China
| | - B Tan
- QILU HOSPITAL OF SHANDONG UNIVERSITY, Jinan, China
| | - Z Huang
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - S Li
- Department of Oncology, Zibo Municipal Hospital, Zibo, China
| | - X Meng
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
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Peng J, Meng R, Liu X, Zhang L, Wang L, Feng R, Feng H, Huang Z, Yao D, Li X, Liu N, Tan B, Li S, Yu J, Meng X. 172P A Chinese multicenter, real-world study of PD-L1 inhibitors in extensive stage small cell lung cancer. J Thorac Oncol 2023. [DOI: 10.1016/s1556-0864(23)00426-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
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Bin X, Zhu C, Tang Y, Li R, Ding Q, Xia W, Tang Y, Tang X, Yao D, Tang A. Nomogram Based on Clinical and Radiomics Data for Predicting Radiation-induced Temporal Lobe Injury in Patients with Non-metastatic Stage T4 Nasopharyngeal Carcinoma. Clin Oncol (R Coll Radiol) 2022; 34:e482-e492. [PMID: 36008245 DOI: 10.1016/j.clon.2022.07.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 06/19/2022] [Accepted: 07/21/2022] [Indexed: 01/31/2023]
Abstract
AIMS To use pre-treatment magnetic resonance imaging-based radiomics data with clinical data to predict radiation-induced temporal lobe injury (RTLI) in nasopharyngeal carcinoma (NPC) patients with stage T4/N0-3/M0 within 5 years after radiotherapy. MATERIALS AND METHODS This study retrospectively examined 98 patients (198 temporal lobes) with stage T4/N0-3/M0 NPC. Participants were enrolled into a training cohort or a validation cohort in a ratio of 7:3. Radiomics features were extracted from pre-treatment magnetic resonance imaging that were T1-and T2-weighted. Spearman rank correlation, the t-test and the least absolute shrinkage and selection operator (LASSO) algorithm were used to select significant radiomics features; machine-learning models were used to generate radiomics signatures (Rad-Scores). Rad-Scores and clinical factors were integrated into a nomogram for prediction of RTLI. Nomogram discrimination was evaluated using receiver operating characteristic analysis and clinical benefits were evaluated using decision curve analysis. RESULTS Participants were enrolled into a training cohort (n = 139) or a validation cohort (n = 59). In total, 3568 radiomics features were initially extracted from T1-and T2-weighted images. Age, Dmax, D1cc and 16 stable radiomics features (six from T1-weighted and 10 from T2-weighted images) were identified as independent predictive factors. A greater Rad-Score was associated with a greater risk of RTLI. The nomogram showed good discrimination, with a C-index of 0.85 (95% confidence interval 0.79-0.92) in the training cohort and 0.82 (95% confidence interval 0.71-0.92) in the validation cohort. CONCLUSION We developed models for the prediction of RTLI in patients with stage T4/N0-3/M0 NPC using pre-treatment radiomics data and clinical data. Nomograms from these pre-treatment data improved the prediction of RTLI. These results may allow the selection of patients for earlier clinical interventions.
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Affiliation(s)
- X Bin
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China
| | - C Zhu
- Department of Radiation Oncology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Y Tang
- Department of Neurology, First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China
| | - R Li
- Interdisciplinary Institute of Neuroscience and Technology, Zhejiang University Hangzhou, Zhejiang Province, China; Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Q Ding
- Institute of Natural Sciences, Shanghai Jiao Tong University, Shanghai, China
| | - W Xia
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China
| | - Y Tang
- Department of Radiology, First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China
| | - X Tang
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China
| | - D Yao
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China
| | - A Tang
- Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China.
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Yu Y, Zhou W, Li Y, Wan W, Yao D, Wei X. Nuclear and Mitochondrial DNA Suggest That Nature Reserve Maintains Novel Haplotypes and Genetic Diversity of Honeybees (Apis cerana). RUSS J GENET+ 2022. [DOI: 10.1134/s1022795422120146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Wu X, Liang S, Chen X, Hou J, Wang K, Wang D, An R, Zang A, Li X, Zhang B, Qu P, Duan W, Yu G, Wang D, Yan D, Wang J, Yao D, Wang S, Zhao W, Lou H. 555P TQB2450 injection combined with anlotinib hydrochloride capsule in the treatment of advanced, recurrent or metastatic endometrial cancer: A multicohort, open label, multicenter phase II clinical trial - The TQB2450-II-08 trial. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Hu X, Dai Z, Pan R, Zhang Y, Liu L, Wang Y, Chen X, Yao D, Hong M, Liu C. Long-term transplantation human menstrual blood mesenchymal stem cell loaded collagen scaffolds repair endometrium histological injury. Reprod Toxicol 2022; 109:53-60. [PMID: 35288324 DOI: 10.1016/j.reprotox.2022.03.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 02/21/2022] [Accepted: 03/05/2022] [Indexed: 02/05/2023]
Affiliation(s)
- Xiujuan Hu
- Department of Histology and Embryology, Institute of Stem Cell and Tissue Engineering, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui, China
| | - Zhijun Dai
- Centre for Reproductive Medicine, Affiliated Maternity and Child Health Hospital of Anhui Medical University, Anhui Province Maternity and Child Health Hospital, Hefei, Anhui, China
| | - Ruolang Pan
- Key Laboratory of Cell-Based Drug and Applied Technology Development in Zhejiang Province, Institute for Cell-Based Drug Development of Zhejiang Province, S-Evans Biosciences, Hangzhou, China
| | - Yi Zhang
- Centre for Reproductive Medicine, Affiliated Maternity and Child Health Hospital of Anhui Medical University, Anhui Province Maternity and Child Health Hospital, Hefei, Anhui, China
| | - Lihua Liu
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, Anhui, China
| | - Yafei Wang
- Centre for Reproductive Medicine, Affiliated Maternity and Child Health Hospital of Anhui Medical University, Anhui Province Maternity and Child Health Hospital, Hefei, Anhui, China
| | - Xueying Chen
- Department of Histology and Embryology, Institute of Stem Cell and Tissue Engineering, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui, China
| | - Dengpan Yao
- Anhui Bantang Rehabilitation Hospital, Hefei, Anhui, China
| | - Mingyun Hong
- Centre for Reproductive Medicine, Affiliated Maternity and Child Health Hospital of Anhui Medical University, Anhui Province Maternity and Child Health Hospital, Hefei, Anhui, China.
| | - Chao Liu
- Department of Histology and Embryology, Institute of Stem Cell and Tissue Engineering, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui, China.
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Brüggenjürgen B, Braatz F, Greitemann B, Drewitz H, Ruetz A, Schäfer M, Seifert W, Steinfeldt F, Weichold C, Yao D, Stukenborg-Colsman C. Experts' Perceived Patient Burden and Outcomes of Knee-ankle-foot-orthoses (Kafos) Vs. Microprocessor-stance-and-swing-phase-controlled-knee-ankle-foot Orthoses (Mp-sscos). Can Prosthet Orthot J 2022; 5:37795. [PMID: 37614478 PMCID: PMC10443469 DOI: 10.33137/cpoj.v5i1.37795] [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: 11/24/2021] [Accepted: 02/10/2022] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Patients with neuromuscular knee-instability assisted with orthotic devices experience problems including pain, falls, mobility issues and limited engagement in daily activities. OBJECTIVES The aim of this study was to analyse current real-life burden, needs and orthotic device outcomes in patients in need for advanced orthotic knee-ankle-foot-orthoses (KAFOs). METHODOLOGY An observer-based semi-structured telephone interview with orthotic care experts in Germany was applied. Interviews were transcribed and content-analysed. Quantitative questions were analysed descriptively. FINDINGS Clinical experts from eight centres which delivered an average of 49.9 KAFOs per year and 13.3 microprocessor-stance-and-swing-phase-controlled-knee-ankle-foot orthoses (MP-SSCOs) since product availability participated. Reported underlying conditions comprised incomplete paraplegia (18%), peripheral nerve lesions (20%), poliomyelitis (41%), post-traumatic lesions (8%) and other disorders (13%). The leading observed patient burdens were "restriction of mobility" (n=6), followed by "emotional strain" (n=5) and "impaired gait pattern" (n=4). Corresponding results for potential patient benefits were seen in "improved quality-of-life" (n=8) as well as "improved gait pattern" (n=8) followed by "high reliability of the orthosis" (n=7). In total, experts reported falls occurring in 71.5% of patients at a combined annual frequency of 7.0 fall events per year when using KAFOs or stance control orthoses (SCOs). In contrast, falls were observed in only 7.2 % of MPSSCO users. CONCLUSION Advanced orthotic technology might contribute to better quality of life of patients, improved gait pattern and perceived reliability of orthosis. In terms of safety a substantial decrease in frequency of falls was observed when comparing KAFO and MP-SSCO users.
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Affiliation(s)
- B. Brüggenjürgen
- Institute for Health Services Research and Technical Orthopedics, Orthopedic Department - Medical School Hannover (MHH) at DIAKOVERE Annastift Hospital, Hannover, Germany
| | - F. Braatz
- Klinik für Unfallchirurgie, Orthopädie und Plastische Chirurgie Universitätsmedizin Göttingen, Georg-August-Universität, Göttingen, Germany
| | - B. Greitemann
- RehaKlinikum Bad Rothenfelde, Klinik Münsterland, Bad Rothenfelde, Germany
| | - H. Drewitz
- Abteilung Orthetik, Otto Bock HealthCare Deutschland GmbH, Göttingen, Germany
| | - A. Ruetz
- Klinik für Konservative Orthopädie, Katholisches Klinikum Koblenz, Montabaur, Germany
| | - M. Schäfer
- Orthopädie-Technik, Pohlig GmbH, Traunstein, Germany
| | - W. Seifert
- Technische Orthopädie, Seifert Technische Orthopädie GmbH, Bad Krozingen, Germany
| | - F. Steinfeldt
- Fachklinik und Gesundheitszentrum, Johannesbad Raupennest GmbH & Co. KG, Altenberg, Germany
| | - C. Weichold
- Technische Orthopädie, Stiftung Orthopädische Universitätsklinikum, Heidelberg, Germany
| | - D. Yao
- Foot Department and Technical Orthopedics, Orthopedic Department - Medical School Hannover (MHH) at DIAKOVERE Annastift Hospital, Hannover, Germany
| | - C. Stukenborg-Colsman
- Foot Department and Technical Orthopedics, Orthopedic Department - Medical School Hannover (MHH) at DIAKOVERE Annastift Hospital, Hannover, Germany
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Wang Y, Liu D, Chi H, Yao D, Luo W, Li Y, Chen S, Wu G. P59.06 Mutational Landscape and Differential Expression Analysis of Transcription Factors in Non-Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Claaßen L, Ettinger S, Yao D, Lerch M, Stukenborg-Colsman C, Plaaß C. [Surgical procedures for the correction and stabilization of pes planovalgus]. Orthopade 2020; 49:968-975. [PMID: 33136193 DOI: 10.1007/s00132-020-03992-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The medial column of the foot is a relevant factor of the pathogenesis of pes planovalgus. Crucial anatomic structures are the tibiocalcaneonavicular ligament complex, the naviculocuneiform joints, including the ossa cuneiformia, and the first tarsometatarsal joint. A combination of bony and soft tissue reconstructive techniques must, therefore, be taken into account when treating pes planovalgus. The present article presents stabilizing and correcting surgical procedures for the medial column of the foot, including basic anatomy and biomechanics.
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Affiliation(s)
- L Claaßen
- Orthopädische Klinik der Medizinischen Hochschule Hannover, DIAKOVERE Annastift, Anna-von-Borries-Str. 1-7, 30625, Hannover, Deutschland.
| | - S Ettinger
- Orthopädische Klinik der Medizinischen Hochschule Hannover, DIAKOVERE Annastift, Anna-von-Borries-Str. 1-7, 30625, Hannover, Deutschland
| | - D Yao
- Orthopädische Klinik der Medizinischen Hochschule Hannover, DIAKOVERE Annastift, Anna-von-Borries-Str. 1-7, 30625, Hannover, Deutschland
| | - M Lerch
- Orthopädische Klinik der Medizinischen Hochschule Hannover, DIAKOVERE Annastift, Anna-von-Borries-Str. 1-7, 30625, Hannover, Deutschland
| | - C Stukenborg-Colsman
- Orthopädische Klinik der Medizinischen Hochschule Hannover, DIAKOVERE Annastift, Anna-von-Borries-Str. 1-7, 30625, Hannover, Deutschland
| | - C Plaaß
- Orthopädische Klinik der Medizinischen Hochschule Hannover, DIAKOVERE Annastift, Anna-von-Borries-Str. 1-7, 30625, Hannover, Deutschland
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Chu WL, Hao DF, Zhao JF, Feng G, Zhang HJ, Li T, Li SY, Chen ZQ, Zhao F, Yao D. [Clinical strategies for preservation of the exposed implant in chronic wounds and wound repair]. Zhonghua Shao Shang Za Zhi 2020; 36:484-487. [PMID: 32594708 DOI: 10.3760/cma.j.cn501120-20190215-00027] [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 explore the clinical strategies for preservation of the exposed implant in chronic wounds and wound repair. Methods: From January 2016 to January 2019, totally 8 patients (4 males and 4 females, aged 10 to 73 years) sustaining postoperative chronic wounds with exposed implants were admitted to the Fourth Medical Center of PLA General Hospital. There were 2 cases of abdominal patch exposure after abdominal trauma surgery, 2 cases of titanium plate exposure post craniocerebral surgery, 3 cases of internal fixator exposure post orthopedic surgery, and 1 case of cerebrospinal fluid drainage tube exposure after craniocerebral surgery. The wound exudate was collected for bacterial culture on admission. On the basis of glycemic control and correction of anemia and hypoproteinemia, thorough wound debridement was performed as soon as possible and the wound area after debridement ranged from 2.0 cm×0.5 cm to 6.0 cm×5.0 cm. The wounds of 4 patients were immediately closed after debridement, including 1 case by primary closure, 1 case by primary closure after local filling of platelet rich plasma gel, and 2 cases by local flap transplantation, with flap size of 10.0 cm×8.0 cm and 12.0 cm×8.0 cm, respectively. The donor sites of flaps were sutured directly and all the incisions were treated with continuous vacuum sealing drainage (VSD) after surgery. The other 4 patients were treated with continuous VSD after debridement to improve the wound bed. The wound of 1 case healed gradually, 1 case received direct wound suturing, and the wounds of 2 cases were repaired with thin split-thickness skin grafts from the thigh or the head. The results of bacterial culture of wound exudate on admission, wound healing post surgery, and follow-up were observed and recorded. Results: The bacterial culture of wound exudate on admission was positive in 6 patients, and 10 strains of bacteria were isolated with Staphylococcus epidermidis as the main pathogen. All the skin grafts or flaps of patients survived post surgery, with the incisions and wounds healed and all the implants preserved. After 1 to 3 years of follow-up, no recurrence of wound was found in any patient. Conclusions: The postoperative chronic wounds with exposed implants can be closed in primary stage by direct suturing or flap transplantation if it is clean enough on the basis of thorough debridement. The wounds with large defects or serious infection can be treated with continuous VSD firstly and then closed with direct suturing or skin grafting for delayed wound closure, thereby to reach the treatment goal of preserving the implants and repairing the wounds simultaneously.
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Affiliation(s)
- W L Chu
- Department of Burns and Plastic Surgery, the Fourth Medical Center of PLA General Hospital, Beijing 100048, China
| | - D F Hao
- Department of Burns and Plastic Surgery, the Fourth Medical Center of PLA General Hospital, Beijing 100048, China
| | - J F Zhao
- Department of Burns and Plastic Surgery, the Fourth Medical Center of PLA General Hospital, Beijing 100048, China
| | - G Feng
- Department of Burns and Plastic Surgery, the Fourth Medical Center of PLA General Hospital, Beijing 100048, China
| | - H J Zhang
- Department of Burns and Plastic Surgery, the Fourth Medical Center of PLA General Hospital, Beijing 100048, China
| | - T Li
- Department of Burns and Plastic Surgery, the Fourth Medical Center of PLA General Hospital, Beijing 100048, China
| | - S Y Li
- Department of Burns and Plastic Surgery, the Fourth Medical Center of PLA General Hospital, Beijing 100048, China
| | - Z Q Chen
- Department of Burns and Plastic Surgery, the Fourth Medical Center of PLA General Hospital, Beijing 100048, China
| | - F Zhao
- Department of Burns and Plastic Surgery, the Fourth Medical Center of PLA General Hospital, Beijing 100048, China
| | - D Yao
- Department of Burns and Plastic Surgery, the Fourth Medical Center of PLA General Hospital, Beijing 100048, China
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Yao D, Chieng L, Chiang R. 0450 Screening Method for Obstructive Sleep Apnea Syndrome by Patients’ Exhalant with TD-GC-MS System. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Human exhaled breath test is getting more important for non-invasive health monitoring and detecting method nowadays. The diagnosis of obstructive sleep apnea syndrome (OSAS) is often difficult to be confirmed from the daytime presentation and usually need the overnight polysomnography. The methods for OSAS screening are therefore potentials for the clinical practice in the near future.
Methods
In this research, a method of thermal desorption (TD) tendon with gas chromatography-mass spectrometry (GC-MS) system has been developed for screeing of OSAS patients. We detected the volatile organic compounds (VOCs) from the special designed experimental bags which collected exhaled gas. Then we compared the VOCs from normal control and OSAS group in order to find out the biomarkers which could be used to screen OSAS patients. Furthermore, the Reliable Number(N) was used to see how often the VOC identified in all the experients in OSAS group and was defined as the times of a single VOC identified devided by the times of total experiment in a single OSAS patient.
Results
While the reliable number been set as ≥50%, we found 8 VOC markers, including Pentane and Cyclopentyl acetylene, appeared more often in OSAS patients. When we raise N to ≥70%, we have only 3 markers remaining.
Conclusion
Based on this result, we utilize the artificial intelligence method, deep learning, to figure out whether the peak intensity of different biomarkers are related to the severity of OSAS.
Support
Thanks for Da-Jeng Yao Lab’s support
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Affiliation(s)
- D Yao
- National Tsing Hua University, Hsinchu, TAIWAN
| | - L Chieng
- National Tsing Hua University, Hsinchu, TAIWAN
| | - R Chiang
- China Medical University, Taichung, TAIWAN
- International Sleep Science Technology Association (ISSTA), Berlin, GERMANY
- Innovative Medical and Health Technology Center (IMHTC) Asia-Pacific Branch, Taipei, TAIWAN
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Wu GD, Xiao YG, Fang FY, Yao D, Liu J, Cao YH, Mao Y, Yu B, Yao TR, Wu YM, Qian YH, Yu DH. Monitoring of lung malignant epithelial cells by gene methylation analysis in the conditionally reprogrammed cell cultures. Neoplasma 2020; 67:692-699. [PMID: 32202907 DOI: 10.4149/neo_2020_190730n690] [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] [Received: 07/30/2019] [Accepted: 10/16/2019] [Indexed: 11/08/2022]
Abstract
Conditionally reprogrammed cell (CRC) technology is an effective method for culturing primary malignant cells and non-malignant epithelial cells in vitro. This can be useful for precision medicine applications, such as drug sensitivity assays. However, this approach is commonly hindered by the non-specific growth of non-malignant epithelial cells in CRC cultures and the lack of effective biomarkers/assays to distinguish them from primary tumor cells. In this study, we developed a DNA methylation-based, real-time PCR assay to investigate SHOX2 and PTGER4 gene promoters as sensitive markers for human lung cancer. We first found that in formalin-fixed, paraffin-embedded (FFPE) malignant lung samples, 90% (28/31) had increased SHOX2 and/or PTGER4 promoter methylation as compared with their adjacent non-malignant samples. We then applied this assay to fresh surgical tumors and found increased SHOX2 and/or PTGER4 promoter methylation in 80% (20/25) of tumor samples as compared with their corresponding adjacent non-malignant tissues. Increased methylation of SHOX2 or PTGER4 promoter regions was also detected in 52% (13/25) of CRC cultures. The presence of malignant cells was confirmed by growth in soft agar cultures, a hallmark of malignant transformation, as well by EGFR mutation analysis. These results demonstrate that SHOX2 and PTGER4 promoter methylation levels can be used to detect malignant lung epithelial cells in CRC cultures.
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Affiliation(s)
- G D Wu
- Department of Thoracic Surgery, 2nd People's Hospital of Shenzhen, Shenzhen, China
| | | | - F Y Fang
- Department of Thoracic Surgery, 2nd People's Hospital of Shenzhen, Shenzhen, China
| | - D Yao
- Department of Thoracic Surgery, 2nd People's Hospital of Shenzhen, Shenzhen, China
| | - J Liu
- USK Bioscience, Shenzhen, China
| | - Y H Cao
- USK Bioscience, Shenzhen, China
| | - Y Mao
- USK Bioscience, Shenzhen, China
| | - B Yu
- Feinberg School of Medicine, Northwestern University, Chicago, United States
| | - T R Yao
- USK Bioscience, Shenzhen, China
| | - Y M Wu
- Department of Histopathology, Xiaolan People's Hospital, Zhongshan, China
| | - Y H Qian
- Department of Thoracic Surgery, 2nd People's Hospital of Shenzhen, Shenzhen, China
| | - D H Yu
- USK Bioscience, Shenzhen, China
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Shi Y, Qin Y, Zhao S, Hu P, Zeng X, Zhang X, Jiang W, Liu S, Liu E, Chai K, Luk A, Yao D. A population pharmacokinetic model: Assessment of pharmacokinetic similarity of HLX01 and rituximab in diffuse large B-cell lymphoma. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Hounsa A, Yao D, Attia AR, Gokpéya M, Sackou KJ, Kouadio L. Asymptomatic malaria: building bridges with communities through patients in Côte d’Ivoire. Eur J Public Health 2019. [DOI: 10.1093/eurpub/ckz185.589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
In malaria-endemic areas, asymptomatic carriers are a reservoir of parasites that contribue to the persistence of malaria transmission. In Côte d’Ivoire, this situation is poorly documented. The objective of our study was to assess the frequency and socio-environmental factors associated with asymptomatic malaria in the town of Assuefry, located in the northeast of Côte d’Ivoire, a region where malaria prevalence remains high.
Methods
A cross-sectional study in two stages was conducted from October to December 2018, first at the Urban Health Center (UHC) in Assuefry and then in the households. The sample size calculated for patients was 162 extrapolated to 201 people. All persons received at the CSU who had clinical symptoms of malaria and a positive Rapid Diagnostic Test (RDT) were included. In the households of these index subjects, a follow-up survey allowed active RDT screening for malaria among all household members with no clinical signs of malaria. The socio-environmental factors taken into account were: the area of residence (urban or peri-urban), domestic animals husbandry, water storage at home, nearby garbage dump, wastewater collection and disposal system, type of housing and number of people in the household.
Results
The frequency of asymptomatic malaria was 341 (38.8%) out of 879 household members visited. Both female and male gender was concerned (51% vs. 49%). The 5 to 25 years old group concentrated nearly 82% of all cases. Only domestic animals husbandry was associated with asymptomatic malaria at the household level (p = 0.021).
Conclusions
The high frequency of asymptomatic malaria found in this study is a challenge for the National Malaria Control Program in Côte d’Ivoire. This should be taken into account while organizing control strategies.
Key messages
The frequency of asymptomatic malaria in Côte d’Ivoire is high. Control strategies must take into account in the guidelines the challenges of detecting and treating asymptomatic malaria. For the judicious use of antimalarial drugs, any subject with a positive RDT without clinical signs of malaria should receive a ‘Drop - Thick’ before treatment.
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Affiliation(s)
- A Hounsa
- Public Health Department Hydrology Toxicology, University Felix Houphouet Boigny, Abidjan, Cote d’Ivoire
| | - D Yao
- Public Health Department Hydrology Toxicology, University Felix Houphouet Boigny, Abidjan, Cote d’Ivoire
- Assuefry Urban Health Centre, Tanda Health District, Assuefry, Cote d’Ivoire
| | - A R Attia
- Public Health Department Hydrology Toxicology, University Felix Houphouet Boigny, Abidjan, Cote d’Ivoire
| | - M Gokpéya
- Public Health Department Hydrology Toxicology, University Felix Houphouet Boigny, Abidjan, Cote d’Ivoire
| | - K J Sackou
- Public Health Department Hydrology Toxicology, University Felix Houphouet Boigny, Abidjan, Cote d’Ivoire
| | - L Kouadio
- Public Health Department Hydrology Toxicology, University Felix Houphouet Boigny, Abidjan, Cote d’Ivoire
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Affiliation(s)
- L Fleming
- College of Engineering, University of California, Berkeley, CA, USA.
| | - H Greene
- School of Law, University of Connecticut, Hartford, CT, USA
| | - G Li
- College of Engineering, University of California, Berkeley, CA, USA
| | - M Marx
- Questrom School of Business, Boston University, Boston, MA, USA
| | - D Yao
- Harvard Business School, Harvard University, Cambridge, MA, USA
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18
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Yao D, Stukenborg-Colsman C, Ettinger S, Claassen L, Plaass C, Martinelli N, Daniilidis K. Subjective outcome following neurostimulator implantation as drop foot therapy due to lesions in the central nervous system-midterm results. Musculoskelet Surg 2019; 104:93-99. [PMID: 31054081 DOI: 10.1007/s12306-019-00604-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 04/29/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND Drop foot can be caused by many conditions. Stroke is one of the major causes of drop foot and 5% of stroke survivors suffer from hemiplegia, which in some cases, can manifest as drop foot. The abnormal gait resulting from the lack of innervation of the extensor muscles may result in a secondary malposition of the foot and lead to a steppage gait. Among the several therapy options for the treatment of drop foot, functional electrostimulation (FES) with a transcutaneous peroneal nerve stimulator (tPNS) or an implantable peroneal nerve stimulator (iPNS) represents the two recent approaches. OBJECTIVE Although therapy with an iPNS has been proven to be effective, a subjective patient assessment has not yet been executed. The aim of this study was to assess the patient's satisfaction with the therapy by using two established surveys. METHODS The Rivermead Mobility Index (RMI) and the Reintegration to Normal Life Index (RNLI) were used for this retrospective study. The RMI includes 15 questions which are to be answered as either "yes" or "no" and given a value of 1 or 0, respectively, with a maximum of 15 points possible. The RNLI includes 11 questions which are to be answered with the use of a visual analog scale (VAS, 0 to 10 cm). In this case, a maximum adjusted score of 100 points is possible. RESULTS The total study cohort involved 56 patients treated with an iPNS. Thirty-five complete data sets for the RMI and 29 for the RNLI could be achieved. A significant difference in the total score of both surveys was observed between the deactivated and the activated iPNS (RMI: p = 0.02; RNL: p = 0.01). CONCLUSION A significant improvement in patient satisfaction was detected with the use of an activated iPNS after a mean time span of 4 years. Due to the marked mobility, an increase in the social satisfaction and integration could be achieved. Both aspects represent essential components for the recovery and quality of life of the patients.
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Affiliation(s)
- D Yao
- Department of Orthopaedic Surgery in Diakovere Annastift, Hannover Medical School, Anna-von-Borries-Strasse 1-7, 30625, Hannover, Germany.
| | - C Stukenborg-Colsman
- Department of Orthopaedic Surgery in Diakovere Annastift, Hannover Medical School, Anna-von-Borries-Strasse 1-7, 30625, Hannover, Germany
| | - S Ettinger
- Department of Orthopaedic Surgery in Diakovere Annastift, Hannover Medical School, Anna-von-Borries-Strasse 1-7, 30625, Hannover, Germany
| | - L Claassen
- Department of Orthopaedic Surgery in Diakovere Annastift, Hannover Medical School, Anna-von-Borries-Strasse 1-7, 30625, Hannover, Germany
| | - C Plaass
- Department of Orthopaedic Surgery in Diakovere Annastift, Hannover Medical School, Anna-von-Borries-Strasse 1-7, 30625, Hannover, Germany
| | - N Martinelli
- Istituto Ortopedico Galeazzi, Via R. Galeazzi, 4, Milan, Italy
| | - K Daniilidis
- OTC - Orthopaedic Traumatology Centre Regensburg, Paracelsusstraße 2, 93053, Regensburg, Germany
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19
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Peng JY, Zheng J, He JM, Jiang Y, Yao D, Chen X. [Diagnostic and epidemiological features of the first two HIV-2 indigenous infections in Hunan province]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 39:1077-1081. [PMID: 30180431 DOI: 10.3760/cma.j.issn.0254-6450.2018.08.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the diagnostic and epidemiological features of the first two HIV-2 indigenous cases in Hunan province. Methods: Blood samples from two individuals with "HIV antibody indeterminate" and HIV-2 specific band showed by HIV-1/2 western blotting method, were repeatedly collected and detected under HIV 1+2 strip immunoassay and PCR, in Changsha city, Hunan province, through March to November, 2017. An epidemiological survey was carried out at the same time. Results: Our findings showed that the two cases were sex partners, without histories of sexual contact with foreigners and the source of infection was unknown. Results from the HIV 1+2 antibody confirmation test showed that they were "HIV-2 antibody positive" . Through amplifying and sequencing the gag area of HIV-2 and BLAST, the similarity of HIV-2 strains presented as 98%. The results also showed that there were HIV-2 specific fragments in the two cases. Conclusion: HIV-2 indigenous cases had never been reported in China. These cases had brought new challenge on prevention, diagnosis and treatment of HIV/AIDS in China.
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Affiliation(s)
- J Y Peng
- Hunan Provincial Center for Disease Control and Prevention, Changsha 410005, China
| | - J Zheng
- Hunan Provincial Center for Disease Control and Prevention, Changsha 410005, China
| | - J M He
- Hunan Provincial Center for Disease Control and Prevention, Changsha 410005, China
| | - Y Jiang
- Hunan Provincial Center for Disease Control and Prevention, Changsha 410005, China
| | - D Yao
- Changsha Center for Disease Control and Prevention, Changsha 410004, China
| | - X Chen
- Hunan Provincial Center for Disease Control and Prevention, Changsha 410005, China
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21
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Chen C, Pérez de Nanclares M, Kurtz JF, Trudeau MP, Wang L, Yao D, Saqui-Salces M, Urriola PE, Mydland LT, Shurson GC, Overland M. Identification of redox imbalance as a prominent metabolic response elicited by rapeseed feeding in swine metabolome. J Anim Sci 2018; 96:1757-1768. [PMID: 29518202 PMCID: PMC6140949 DOI: 10.1093/jas/sky080] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Accepted: 03/02/2018] [Indexed: 11/13/2022] Open
Abstract
Rapeseed (RS) is an abundant and inexpensive source of energy and AA in diets for monogastrics and a sustainable alternative to soybean meal. It also contains diverse bioactive phytochemicals that could have antinutritional effects at high dose. When the RS-derived feed ingredients (RSF) are used in swine diets, the uptake of these nutrients and phytochemicals is expected to affect the metabolic system. In this study, 2 groups of young pigs (17.8 ± 2.7 kg initial BW) were equally fed a soybean meal-based control diet and an RSF-based diet, respectively, for 3 wk. Digesta, liver, and serum samples from these pigs were examined by liquid chromatography-mass spectrometry-based metabolomic analysis to determine the metabolic effects of the 2 diets. Analyses of digesta samples revealed that sinapine, sinapic acid, and gluconapin were robust exposure markers of RS. The distribution of free AA along the intestine of RSF pigs was consistent with the reduced apparent ileal digestibility of AA observed in these pigs. Despite its higher fiber content, the RSF diet did not affect microbial metabolites in the digesta, including short-chain fatty acids and secondary bile acids. Analyses of the liver and serum samples revealed that RSF altered the levels of AA metabolites involved in the urea cycle and 1-carbon metabolism. More importantly, RSF increased the levels of multiple oxidized metabolites and aldehydes while decreased the levels of ascorbic acid and docosahexaenoic acid-containing lipids in the liver and serum, suggesting that RSF could disrupt redox balance in young pigs. Overall, the results indicated that RSF elicited diverse metabolic events in young pigs through its influences on nutrient and antioxidant metabolism, which might affect the performance and health in long-term feeding and also provide the venues for nutritional and processing interventions to improve the utilization of RSF in pigs.
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Affiliation(s)
- C Chen
- Department of Food Science and Nutrition, University of Minnesota, St Paul, MN
| | - M Pérez de Nanclares
- Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, Os, Norway
| | - J F Kurtz
- Department of Food Science and Nutrition, University of Minnesota, St Paul, MN
| | - M P Trudeau
- Department of Animal Science, University of Minnesota, St Paul, MN
| | - L Wang
- Department of Food Science and Nutrition, University of Minnesota, St Paul, MN
| | - D Yao
- Department of Food Science and Nutrition, University of Minnesota, St Paul, MN
| | - M Saqui-Salces
- Department of Animal Science, University of Minnesota, St Paul, MN
| | - P E Urriola
- Department of Animal Science, University of Minnesota, St Paul, MN
| | - L T Mydland
- Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, Os, Norway
| | - G C Shurson
- Department of Animal Science, University of Minnesota, St Paul, MN
| | - M Overland
- Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, Os, Norway
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22
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Guo J, Hu Q, Faris RJ, Hung YT, Song Y, Yao D, Saqui-Salces M, Urriola PE, Shurson GC, Chen C. 337 Identification of Fecal Metabolites Associated with Fiber Exposure and Growth Performance in Growing-Finishing Pigs through Metabolomic Investigation. J Anim Sci 2018. [DOI: 10.1093/jas/sky073.334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- J Guo
- Department of Food Science and Nutrition, University of Minnesota, St. Paul, MN
| | - Q Hu
- Cargill Animal Nutrition, Elk River, MN
| | - R J Faris
- Cargill Animal Nutrition, Elk River, MN
| | - Y T Hung
- Department of Animal Science, University of Minnesota, St. Paul, MN
| | - Y Song
- Department of Food Science and Nutrition, University of Minnesota, St. Paul, MN
| | - D Yao
- Department of Food Science and Nutrition, University of Minnesota, St. Paul, MN
| | - M Saqui-Salces
- Department of Animal Science, University of Minnesota, St. Paul, MN
| | - P E Urriola
- Department of Animal Science, University of Minnesota, St. Paul, MN
| | - G C Shurson
- Department of Animal Science, University of Minnesota, St. Paul, MN
| | - C Chen
- Department of Food Science and Nutrition, University of Minnesota, St. Paul, MN
- Department of Animal Science, University of Minnesota, St. Paul, MN
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Abstract
Background The primary pulmonary lymphoma (PPL), with a low incidence, was highly misdiagnosed in clinic. The present study analyzes the clinical features, laboratory and imaging data, pathologic characteristics, and summarizes misdiagnosis reasons of PPL cases, aims to provide a better understanding and increase the accuracy of early diagnosis and minimize the misdiagnosis of PPL. Methods The clinical data of 19 cases were collected from the first affiliated hospital of Wenzhou medical university (PRC) from April 2010 to May 2016. All cases were confirmed by pathology. The process of misdiagnosis was described. This study retrospectively analyzed the incidence, clinical presentation, laboratory examination, Chest CT scan and diagnosis of the cases. Results The symptoms of the 19 cases were dyspnea, fever, hemoptysis, chest pain or physical findings without obvious symptoms. Five patients were pneumonia-like, nine patients had lung single nodule or mass and four patients got pleural effusion, which were reported by computed tomography (HRCT) scan. There were 2 cases of Hodgkin lymphoma (HL), and 17 cases of non-Hodgkin lymphoma (NHL). In NHL cases, 12 cases were confirmed mucosa associated lymphoid tissue B lymphoma type, 3 cases were confirmed diffuse large B-cell lymphoma, angioimmunoblastic T-cell lymphoma and ALK positive anaplastic large cell lymphoma were one case separately. Clinical and imaging manifestation of PPL is untypical, but there are still some hints: 1) Fuzzy shadow at the edge of lung mass with air bronchogram; 2) Lung mass shadow stable for a long time; 3) Pneumonia-like changing without infections clinical and lab manifestation. Thirteen patients (68.4%) were misdiagnosed as pneumonia, lung cancer and tuberculosis initially. The term between initial diagnosis and final diagnosis lasted for half a month up to 2 years, with median time of 6 months. Two cases were misdiagnosed as tuberculosis. One case was misdiagnosed as small cell lung cancer. Conclusion Clinical and imaging manifestation of PPL is untypical. Biopsies should be taken actively if the imaging findings don’t match the symptoms or the anti-infection treatments to “lung infection” don’t work. Accurate diagnosis requires adequate tissue sampling with appropriate ancillary pathologic studies. If clinical manifestation and the diagnosis don’t match, repeated biopsy should be ordered.
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Affiliation(s)
- D Yao
- The First Affiliated Hospital of Wenzhou Medical University & Key Laboratory of Heart and Lung, Zhejiang, 325035, China
| | - L Zhang
- Wenzhou Medical University, Zhejiang, 325035, China
| | - P L Wu
- The First Affiliated Hospital of Wenzhou Medical University & Key Laboratory of Heart and Lung, Zhejiang, 325035, China
| | - X L Gu
- Wenzhou Medical University, Zhejiang, 325035, China
| | - Y F Chen
- The First Affiliated Hospital of Wenzhou Medical University & Key Laboratory of Heart and Lung, Zhejiang, 325035, China
| | - L X Wang
- The First Affiliated Hospital of Wenzhou Medical University & Key Laboratory of Heart and Lung, Zhejiang, 325035, China
| | - X Y Huang
- The First Affiliated Hospital of Wenzhou Medical University & Key Laboratory of Heart and Lung, Zhejiang, 325035, China.
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Jiang S, Luo C, Gong J, Peng R, Ma S, Tan S, Ye G, Dong L, Yao D. Aberrant Thalamocortical Connectivity in Juvenile Myoclonic Epilepsy. Int J Neural Syst 2017; 28:1750034. [PMID: 28830309 DOI: 10.1142/s0129065717500344] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The purpose of this study was to investigate the functional connectivity (FC) of thalamic subdivisions in patients with juvenile myoclonic epilepsy (JME). Resting state functional magnetic resonance imaging (fMRI) and diffusion tensor imaging (DTI) data were acquired from 22 JME and 25 healthy controls. We first divided the thalamus into eight subdivisions by performing independent component analysis on tracking fibers and clustering thalamus-related FC maps. We then analyzed abnormal FC in each subdivision in JME compared with healthy controls, and we investigated their associations with clinical features. Eight thalamic sub-regions identified in the current study showed unbalanced thalamic FC in JME: decreased FC with the superior frontal gyrus and enhanced FC with the supplementary motor area in the posterior thalamus increased thalamic FC with the salience network (SN) and reduced FC with the default mode network (DMN). Abnormalities in thalamo-prefrontocortical networks might be related to the propagation of generalized spikes with frontocentral predominance in JME, and the network connectivity differences with the SN and DMN might be implicated in emotional and cognitive defects in JME. JME was also associated with enhanced FC among thalamic sub-regions and with the basal ganglia and cerebellum, suggesting the regulatory role of subcortical nuclei and the cerebellum on the thalamo-cortical circuit. Additionally, increased FC with the pallidum was positive related with the duration of disease. The present study provides emerging evidence of FC to understand that specific thalamic subdivisions contribute to the abnormalities of thalamic-cortical networks in JME. Moreover, the posterior thalamus could play a crucial role in generalized epileptic activity in JME.
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Affiliation(s)
- S. Jiang
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, Center for Information in Medicine, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - C. Luo
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, Center for Information in Medicine, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - J. Gong
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, Center for Information in Medicine, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - R. Peng
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, Center for Information in Medicine, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - S. Ma
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, Center for Information in Medicine, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
- Neurology Department, Sichuan Provincial People’s Hospital, The affiliated Hospital of University of Electronic Science and Technology of China, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - S. Tan
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, Center for Information in Medicine, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
- Neurology Department, Sichuan Provincial People’s Hospital, The affiliated Hospital of University of Electronic Science and Technology of China, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - G. Ye
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, Center for Information in Medicine, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - L. Dong
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, Center for Information in Medicine, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - D. Yao
- The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Lab for Neuroinformation, Center for Information in Medicine, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
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Stukenborg-Colsman C, Claaßen L, Ettinger S, Yao D, Lerch M, Plaaß C. [Distal osteotomy for the treatment of hallux valgus (Chevron osteotomy)]. Orthopade 2017; 46:402-407. [PMID: 28405710 DOI: 10.1007/s00132-017-3422-6] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Distal osteotomies, like the Chevron osteotomy, is indicated for mild to moderate hallux valgus deformities. Splayfoot, painful pseudoexostosis, and transfer metatasalgia are observed in the clinical examination. Radiographic examination should be done with weight bearing in two planes. Preoperatively the intermetatarsal (IM), hallux valgus, and distal metatarsal articular (DMAA) angles should be measured. The operative technique is based on soft tissue and bony correction. Modifications of the osteotomy allow a shortening, lengthening, or neutral correction of the first metatarsal. With a modified Chevron osteotomy, an increased DMAA can be also corrected.
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Affiliation(s)
- C Stukenborg-Colsman
- Department Fuß- und Sprunggelenkchirurgie, DIAKOVERE Annastift, Orthopädische Klinik der Medizinischen Hochschule Hannover (MHH), Anna-von-Borries-Str. 1-7, 30625, Hannover, Deutschland.
| | - L Claaßen
- Department Fuß- und Sprunggelenkchirurgie, DIAKOVERE Annastift, Orthopädische Klinik der Medizinischen Hochschule Hannover (MHH), Anna-von-Borries-Str. 1-7, 30625, Hannover, Deutschland
| | - S Ettinger
- Department Fuß- und Sprunggelenkchirurgie, DIAKOVERE Annastift, Orthopädische Klinik der Medizinischen Hochschule Hannover (MHH), Anna-von-Borries-Str. 1-7, 30625, Hannover, Deutschland
| | - D Yao
- Department Fuß- und Sprunggelenkchirurgie, DIAKOVERE Annastift, Orthopädische Klinik der Medizinischen Hochschule Hannover (MHH), Anna-von-Borries-Str. 1-7, 30625, Hannover, Deutschland
| | - M Lerch
- Department Fuß- und Sprunggelenkchirurgie, DIAKOVERE Annastift, Orthopädische Klinik der Medizinischen Hochschule Hannover (MHH), Anna-von-Borries-Str. 1-7, 30625, Hannover, Deutschland
| | - C Plaaß
- Department Fuß- und Sprunggelenkchirurgie, DIAKOVERE Annastift, Orthopädische Klinik der Medizinischen Hochschule Hannover (MHH), Anna-von-Borries-Str. 1-7, 30625, Hannover, Deutschland
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Kurtz JF, Chen C, de Nanclares MP, Trudeau M, Yao D, Saqui-Salces M, Urriola PE, Mydland LT, Shurson GC, Overland M. 258 Effects of rapeseed feeding on swine metabolome. J Anim Sci 2017. [DOI: 10.2527/asasmw.2017.258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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27
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Yao D, Jakubowitz E, Tecante K, Lahner M, Ettinger S, Claassen L, Plaass C, Stukenborg-Colsman C, Daniilidis K. Restoring mobility after stroke: first kinematic results from a pilot study with a hybrid drop foot stimulator. Musculoskelet Surg 2016; 100:223-229. [PMID: 27585822 DOI: 10.1007/s12306-016-0423-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 08/23/2016] [Indexed: 10/21/2022]
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Li H, Zuo M, Zhao X, Zhang B, Gelb A, Yao D, Xia D, Li M, Wang K, Wu L, Huang Y. Abstract PR589. Anesth Analg 2016. [DOI: 10.1213/01.ane.0000492969.38623.3d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Wang MG, Huang XX, Yao D, An Q, Deng XQ. Effect of glucocorticoid combined with gamma globulin in treatment of children with myasthenia gravis and its effects on immune globulin and complement of children. Eur Rev Med Pharmacol Sci 2016; 20:2404-2408. [PMID: 27338067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To discuss the effects glucocorticoid combined with gamma globulins in the treatment of children with myasthenia gravis and its effects on immune globulin and complement of children. PATIENTS AND METHODS Clinical data of 70 cases of childhood myasthenia gravis in this hospital were retrospectively analyzed. These cases were randomly divided into observation group and control group. For observation group, there were methylprednisolone and gamma globulins while the only methylprednisolone in the control group. The clinical effects and changes in immune globulin and complement of two groups were observed. RESULTS The total effective rate for observation group was 94.3% and 74.3% for the control group, and this difference was statistically significant (p < 0.05) The time for relief of symptoms (6.55 ± 1.35 days) and total hospital stay (17.15 ± 3.65 days) in observation group was apparently shorter than the control group, with statistical significance (p < 0.05). CONCLUSIONS Glucocorticoid and gamma globulin can improve the symptoms and achieve satisfying clinical effects for the treatment of myasthenia gravis in children. Thus, it is valuable for further popularization and application.
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Affiliation(s)
- M-G Wang
- Department of Neurology, Xuzhou Children's Hospital, Xuzhou, Jiangsu, P.R. China.
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Qu J, Liu SY, Wang PW, Guan SY, Fan YG, Yao D, Zhang L, Dai JL. Agrobacterium-mediated transformation of the β-subunit gene in 7S globulin protein in soybean using RNAi technology. Genet Mol Res 2016; 15:gmr7561. [PMID: 27173254 DOI: 10.4238/gmr.15027561] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The objective of this study was to use RNA interference (RNAi) to improve protein quality and decrease anti-nutritional effects in soybean. Agrobacterium tumefaciens-mediated transformation was conducted using RNAi and an expression vector containing the 7S globulin β-subunit gene. The BAR gene was used as the selective marker and cotyledonary nodes of soybean genotype Jinong 27 were chosen as explant material. Regenerated plants were detected by molecular biology techniques. Transformation of the β-subunit gene in the 7S protein was detected by PCR, Southern blot, and q-PCR. Positive plants (10 T0, and 6 T1, and 13 T2) were tested by PCR. Hybridization bands were detected by Southern blot analysis in two of the T1 transgenic plants. RNAi expression vectors containing the soybean 7S protein β-subunit gene were successfully integrated into the genome of transgenic plants. qRT-PCR analysis in soybean seeds showed a clear decrease in expression of the soybean β-subunit gene. The level of 7S protein β-subunit expression in transgenic plants decreased by 77.5% as compared to that of the wild-type plants. This study has established a basis for the application of RNAi to improve the anti-nutritional effects of soybean.
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Affiliation(s)
- J Qu
- College of Agronomy, Jilin Agricultural University, Changchun, China
| | - S Y Liu
- College of Life Sciences, Jilin Agricultural University, Changchun, China
| | - P W Wang
- College of Agronomy, Jilin Agricultural University, Changchun, China
| | - S Y Guan
- College of Life Sciences, Jilin Agricultural University, Changchun, China
| | - Y G Fan
- Changchun Boao Bio-Chemical Pharmaceutical Co. Ltd., Changchun, China
| | - D Yao
- College of Life Sciences, Jilin Agricultural University, Changchun, China
| | - L Zhang
- Biotechnology Center of Jilin Agricultural University, Changchun, China
| | - J L Dai
- Biotechnology Center of Jilin Agricultural University, Changchun, China
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Wang YY, Wang MG, Yao D, Huang XX, Zhang T, Deng XQ. Comparison of impact on seizure frequency and epileptiform discharges of children with epilepsy from topiramate and phenobarbital. Eur Rev Med Pharmacol Sci 2016; 20:993-997. [PMID: 27010160] [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: 06/05/2023]
Abstract
OBJECTIVE To study the impact on seizure frequency and epileptiform discharges of children with epilepsy from topiramate (TPM) and phenobarbital (PB). PATIENTS AND METHODS Two hundred cases children with epilepsy from August 2010 to August 2013 in our hospital were sampled and randomly divided into two groups. The observation group was treated with TPM while the control group with PB, and then comparing seizure frequency, efficiency, and adverse reactions of two groups. RESULTS The reduced number of partial seizures, generalized seizures, and total seizures in the observation group were significantly higher than those in the control group, and the rate of cure, markedly effective and total efficiency in observation group were significantly higher than those in the control group. However, the adverse reactions in observation group were significantly lower than those in the control group. Thus, differences were statistically significant (p<0.05). CONCLUSIONS Compared with PB, TPM showed a better effect on epilepsy treatment with less adverse reactions which were worthy of clinical recommendation.
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Affiliation(s)
- Y-Y Wang
- Department of Neurology, Xuzhou Children's Hospital, Xuzhou, Jiangsu, P.R. China.
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Kouassi B, Godé C, Ahui Brou J, Koffi M, Yao D, Horo K, Koné A, Samaké K, N’gom A, Koffi N, Itchy M. Atteintes pleuropulmonaires au cours des maladies systémiques. Rev Mal Respir 2016. [DOI: 10.1016/j.rmr.2015.10.552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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33
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Liu ZZ, Yao D, Zhang J, Li ZL, Ma J, Liu SY, Qu J, Guan SY, Wang DD, Pan LD, Wang D, Wang PW. Identification of genes associated with the increased number of four-seed pods in soybean (Glycine max L.) using transcriptome analysis. Genet Mol Res 2015; 14:18895-912. [PMID: 26782540 DOI: 10.4238/2015.december.28.39] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Seed number per pod is an important component of yield traits in soybean (Glycine max L.). In 2010, we identified a natural mutant with an increased number of four-seed pods from a soybean variety named 'Jinong 18' (JN18). Subsequent observations indicated that the trait was stably inherited. To identify and understand the function of genes associated with this mutant trait, we analyzed the genetic differences between the mutant (JN18MT01) and source variety (JN18) by transcriptome sequencing. Three types of tissues, axillary buds, unfertilized ovaries, and young pods at three different growth stages, V6, R1, and R3, were analyzed, respectively. The sequencing results yielded 55,582 expressed genes and 4183 differentially expressed genes (DEGs). Among these, the log2 ratio value of 162 DEGs was >10, and 13 DEGs had overlapping expression at three different growth stages. Comparisons of DEGs among three different growth stages yielded similar results in terms of the percentage of genes classified into each gene ontology (GO) category. DEGs were classified into 25 different functional groups in clusters of orthologous groups analysis. Proportions of the main functional genes differed significantly over developmental stages. A comparison of enriched pathways among the three developmental stages revealed that 646 unigenes were involved in 103 metabolic pathways. These results show that the development of four-seed pods is associated with a complex network involving multiple physiological and metabolic pathways. This study lays the foundation for further research on cloning and on the molecular regulation of genes related to the four-seed pod mutation.
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Affiliation(s)
- Z Z Liu
- Center for Plant Biotechnology, Jilin Agricultural University, Changchun, China
| | - D Yao
- Center for Plant Biotechnology, Jilin Agricultural University, Changchun, China
| | - J Zhang
- Center for Plant Biotechnology, Jilin Agricultural University, Changchun, China
| | - Z L Li
- Center for Applied Genetic Technologies, University of Georgia, Athens, GA, USA
| | - J Ma
- Center for Plant Biotechnology, Jilin Agricultural University, Changchun, China
| | - S Y Liu
- Center for Plant Biotechnology, Jilin Agricultural University, Changchun, China
| | - J Qu
- Center for Plant Biotechnology, Jilin Agricultural University, Changchun, China
| | - S Y Guan
- Center for Plant Biotechnology, Jilin Agricultural University, Changchun, China
| | - D D Wang
- Center for Plant Biotechnology, Jilin Agricultural University, Changchun, China
| | - L D Pan
- Center for Plant Biotechnology, Jilin Agricultural University, Changchun, China
| | - D Wang
- Center for Plant Biotechnology, Jilin Agricultural University, Changchun, China
| | - P W Wang
- Center for Plant Biotechnology, Jilin Agricultural University, Changchun, China
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Kong W, Wang J, Ni X, Li Y, Mao Q, Yao D, Fan S, Chen Y, Cai Z, Li J. Transition of Decade in Short Bowel Syndrome in China: Yesterday, Today, and Tomorrow. Transplant Proc 2015; 47:1983-7. [DOI: 10.1016/j.transproceed.2015.05.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 05/14/2015] [Indexed: 12/01/2022]
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Yao D, Liu ZZ, Zhang J, Liu SY, Qu J, Guan SY, Pan LD, Wang D, Liu JW, Wang PW. Analysis of quantitative trait loci for main plant traits in soybean. Genet Mol Res 2015; 14:6101-9. [PMID: 26125811 DOI: 10.4238/2015.june.8.8] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Plant traits are important indices for regulating and controlling yield ability in soybean varieties. It is important to comprehensively study the quantitative trait locus (QTL) mapping for soybean plant traits, cloning related genes, and marker assistant breeding. In this study, 236 F2 generation plants and a derivative group were constructed by using Jiyu50 and Jinong18, obtained from Jilin Province. A total of 102 simple sequence repeat markers were used to construct a genetic linkage map. With 2 years of molecular and phenotypic data, QTL analyses and mapping were conducted for soybean maturity, plant height, main stem node, main stem branch, seed weight per plant, and more. Five main plant traits were analyzed via inclusive composite interval mapping using QTL IciMapping v2.2. Using one-dimensional scanning, a total of 30 QTLs were detected and distributed across 1 (A1), 4 (C2), and 12 (G). There were 9 linkage groups, including 16 major QTLs. Using two-dimensional scanning, 7 pairs of epistatic QTL interactions for maturity and plant height were detected in the soybean.
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Affiliation(s)
- D Yao
- Biotechnology Center, Jilin Agricultural University, Changchun, China
| | - Z Z Liu
- Biotechnology Center, Jilin Agricultural University, Changchun, China
| | - J Zhang
- Biotechnology Center, Jilin Agricultural University, Changchun, China
| | - S Y Liu
- Biotechnology Center, Jilin Agricultural University, Changchun, China
| | - J Qu
- Biotechnology Center, Jilin Agricultural University, Changchun, China
| | - S Y Guan
- Biotechnology Center, Jilin Agricultural University, Changchun, China
| | - L D Pan
- Biotechnology Center, Jilin Agricultural University, Changchun, China
| | - D Wang
- Biotechnology Center, Jilin Agricultural University, Changchun, China
| | - J W Liu
- Biotechnology Center, Jilin Agricultural University, Changchun, China
| | - P W Wang
- Biotechnology Center, Jilin Agricultural University, Changchun, China
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Yang L, Zhou Z, Yao D, Xu W, Zhao H. ET-69 * SPECIFIC Wip1 INHIBITOR, CCT007093 ABROGATE CELL PROLIFERATION, MIGRATION AND INVASION INDUCED BY THE UVC RADIATION IN HUMAN GLIOBLASTOMA CELLS. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou255.66] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Zhang J, Yao D, Ma J, Fu YP, Qu J, Wang PW. Genetic analysis of the major gene plus polygene model in soybean resistance to Leguminivora glycinivorella. Genet Mol Res 2014; 13:4983-9. [PMID: 25062486 DOI: 10.4238/2014.july.4.13] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023]
Abstract
In order to investigate the genetic characteristics of soybean Leguminivora glycinivorella resistance and to improve soybean resistance insectivorous breeding efficiency by applying the multi-generation joint analysis method of the major gene plus polygene model, 5 pedigrees and generations (P1, F1, P2, F2, and F2:3) were used as the materials to perform the soybean L. glycinivorella resistance multi-generation joint analysis. The results showed that soybean resistance to L. glycinivorella was controlled and inherited by an additive major gene plus additive, dominant polygene. The major gene had a negative additive effect (d = -0.1633). The combination of the anti-L. glycinivorella genes showed negative heterosis. Because the polygene additive effects were positive, the polygene effects would increase the insect herbivory rate in the F1 generation. This hybrid combination showed an insect herbivory rate polygenic heritability of 21.9556 and 54.3490% in the F2 and F2:3 pedigrees, which presented a high heritability. Therefore, it was appropriate to perform the selective breeding of the insect herbivory rate in the late generation.
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Affiliation(s)
- J Zhang
- College of Agronomy, Jilin Agricultural University, Changchun, China
| | - D Yao
- College of Agronomy, Jilin Agricultural University, Changchun, China
| | - J Ma
- College of Agronomy, Jilin Agricultural University, Changchun, China
| | - Y-P Fu
- College of Agronomy, Jilin Agricultural University, Changchun, China
| | - J Qu
- College of Agronomy, Jilin Agricultural University, Changchun, China
| | - P-W Wang
- College of Agronomy, Jilin Agricultural University, Changchun, China
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Zhang J, Yao D, Wang P, Guan SY, Ma J, Fu YP. Cloning and functional prediction of differentially expressed genes in the leaves of Glycine max parents and hybrids at the seedling stage. Genet Mol Res 2014; 13:5474-83. [PMID: 24615101 DOI: 10.4238/2014.february.13.15] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023]
Abstract
Here, we compare the molecular mechanism of soybean heterosis through the differential expression of basic cloning. Specifically, we cloned 22 differentially expressed cDNA fragments from hybrid combinations of Jilin 38 x EXP (which had obvious yield advantages) and their parents. In addition, we compared the homology of these fragments and predicted their functions. Cloning differentially expressed genes included the identification of the calmodulin binding protein, 18S ribosomal gene, 26S ribosomal gene, soybean satellite DNA, soybean acid phosphatase, soybean chlorophyll a/b-binding protein II (Cab-6) gene, soybean chloroplast PI 437654 gene, soybean PPR protein gene, and other fragments with unknown functions. In conclusion, the cloning and functional prediction of differentially expressed soybean genes in this study is anticipated to provide valuable information for studies on the molecular mechanism of heterosis.
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Affiliation(s)
- J Zhang
- College of Agronomy of Jilin Agricultural University, Changchun, Jilin, China
| | - D Yao
- College of Agronomy of Jilin Agricultural University, Changchun, Jilin, China
| | - P Wang
- College of Agronomy of Jilin Agricultural University, Changchun, Jilin, China
| | - S Y Guan
- College of Agronomy of Jilin Agricultural University, Changchun, Jilin, China
| | - J Ma
- College of Agronomy of Jilin Agricultural University, Changchun, Jilin, China
| | - Y P Fu
- College of Agronomy of Jilin Agricultural University, Changchun, Jilin, China
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Chen SH, Lei M, Xie XH, Zheng LZ, Yao D, Wang XL, Li W, Zhao Z, Kong A, Xiao DM, Wang DP, Pan XH, Wang YX, Qin L. PLGA/TCP composite scaffold incorporating bioactive phytomolecule icaritin for enhancement of bone defect repair in rabbits. Acta Biomater 2013; 9:6711-22. [PMID: 23376238 DOI: 10.1016/j.actbio.2013.01.024] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 01/22/2013] [Accepted: 01/23/2013] [Indexed: 12/18/2022]
Abstract
Bone defect repair is challenging in orthopaedic clinics. For treatment of large bone defects, bone grafting remains the method of choice for the majority of surgeons, as it fills spaces and provides support to enhance biological bone repair. As therapeutic agents are desirable for enhancing bone healing, this study was designed to develop such a bioactive composite scaffold (PLGA/TCP/ICT) made of polylactide-co-glycolide (PLGA) and tricalcium phosphate (TCP) as a basic carrier, incorporating a phytomolecule icaritin (ICT), i.e., a novel osteogenic exogenous growth factor. PLGA/TCP/ICT scaffolds were fabricated as PLGA/TCP (control group) and PLGA/TCP in tandem with low/mid/high-dose ICT (LICT/MICT/HICT groups, respectively). To evaluate the in vivo osteogenic and angiogenic potentials of these bioactive scaffolds with slow release of osteogenic ICT, the authors established a 12 mm ulnar bone defect model in rabbits. X-ray and high-resolution peripheral quantitative computed tomography results at weeks 2, 4 and 8 post-surgery showed more newly formed bone within bone defects implanted with PLGA/TCP/ICT scaffolds, especially PLGA/TCP/MICT scaffold. Histological results at weeks 4 and 8 also demonstrated more newly mineralized bone in PLGA/TCP/ICT groups, especially in the PLGA/TCP/MICT group, with correspondingly more new vessel ingrowth. These findings may form a good foundation for potential clinical validation of this innovative bioactive scaffold incorporated with the proper amount of osteopromotive phytomolecule ICT as a ready product for clinical applications.
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Affiliation(s)
- S-H Chen
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
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Abstract
Abstract
A new microfeature embossing method utilizing a slowly crystallizing mechanism was investigated to eliminate thermal cycling, as needed in standard hot embossing. Poly(ethylene terephthalate) was used as a model system for demonstration. Due to its slow crystallization, amorphous PET film can be made by melt casting onto a chilled roll. The resulting amorphous film was embossed at a constant temperature of 180°C for a period of time comparable to or longer than the polymer's half-time of crystallization. During constant-temperature embossing, the film is softened first, caused by rubber softening of the amorphous phase, and is then hardened, resulting from the crystallization of the amorphous phase at the same embossing temperature. Since the embossed film is hardened under the constant mold temperature, no cooling is needed. Selected micro features, including circular microchannels and high aspect ratio microribs, were consistently patterned using a total cycle time about 40s. The embossed films were characterized using DSC and rotational rheometry to elucidate the physical mechanism for softening and hardening the polymer during constant-temperature embossing.
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Affiliation(s)
- D. Yao
- School of Polymer, Textile & Fiber Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - P. Nagarajan
- School of Polymer, Textile & Fiber Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - K. R. T. Ramasubramani
- School of Polymer, Textile & Fiber Engineering, Georgia Institute of Technology, Atlanta, GA, USA
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Yao D, Liu L, Jin S, Li J, Liu XD. Overexpression of multidrug resistance-associated protein 2 in the brain of pentylenetetrazole-kindled rats. Neuroscience 2012; 227:283-92. [PMID: 23059797 DOI: 10.1016/j.neuroscience.2012.10.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Revised: 09/11/2012] [Accepted: 10/02/2012] [Indexed: 01/03/2023]
Abstract
Clinical studies and animal models have shown that pharmacoresistant epilepsy is partly due to the overexpression of ATP-binding cassette transporters at the brain. The purposes of the study were to investigate the function and expression of multidrug resistance-associated protein 2 (Mrp2) in the brain of pentylenetetrazole (PTZ)-kindled rats, and the effect of the altered Mrp2 function and expression on phenytoin (PHT) distribution in the brain. Kindled rats were developed by sub-convulsive dose of PTZ (33 mg/kg, every day, intraperitoneal (i.p.)) for 28 days. Mrp2 expression and function were measured by western blot and bromosulfophthalein (BSP) distribution in the brain. PHT concentrations in the brain of PTZ-kindled rats were measured alone or with co-administration of probenecid (50mg/kg). Further experiment was designed to investigate whether PHT treatment prevented the up-regulated brain Mrp2 expression and function induced by PTZ-kindling. The results showed that PTZ-kindling resulted in an increase of Mrp2 level in the hippocampus and cortex of rats, accompanied by significant decreases in the brain-to-plasma concentration ratio of BSP. PTZ-kindling also decreased PHT levels in the hippocampus and cortex without altering PHT concentrations in plasma, resulting in a lower brain-to-plasma concentration ratio of PHT. Co-administration of probenecid increased the brain-to-plasma ratio of BSP and PHT in the brain of both normal and PTZ-kindled rats. A 14-day PHT treatment prevented the up-regulation of Mrp2 expression and function induced by PTZ-kindling, accompanied by increases of PHT concentrations in the brain and good anticonvulsive effects. The present study demonstrated that chronic PTZ-kindling increased Mrp2 expression and function in the rat brain, and the up-regulation partly came from epileptic seizure.
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Affiliation(s)
- D Yao
- Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 210009, China
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Weimann A, Yao D, Herbort M, Raschke MJ. Biomechanische Evaluation verschiedener Rekonstruktionstechniken nach Lig. patellae Ruptur. Zentralbl Chir 2011. [DOI: 10.1055/s-0031-1289071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Xie XH, Wang XL, Zhang G, Liu Z, Yao D, Hung LK, Hung VWY, Qin L. Impaired bone healing in rabbits with steroid-induced osteonecrosis. ACTA ACUST UNITED AC 2011; 93:558-65. [PMID: 21464501 DOI: 10.1302/0301-620x.93b4.25442] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Corticosteroids are prescribed for the treatment of many medical conditions and their adverse effects on bone, including steroid-associated osteoporosis and osteonecrosis, are well documented. Core decompression is performed to treat osteonecrosis, but the results are variable. As steroids may affect bone turnover, this study was designed to investigate bone healing within a bone tunnel after core decompression in an experimental model of steroid-associated osteonecrosis. A total of five 28-week-old New Zealand rabbits were used to establish a model of steroid-induced osteonecrosis and another five rabbits served as controls. Two weeks after the induction of osteonecrosis, core decompression was performed by creating a bone tunnel 3 mm in diameter in both distal femora of each rabbit in both the experimental osteonecrosis and control groups. An in vivo micro-CT scanner was used to monitor healing within the bone tunnel at four, eight and 12 weeks postoperatively. At week 12, the animals were killed for histological and biomechanical analysis. In the osteonecrosis group all measurements of bone healing and maturation were lower compared with the control group. Impaired osteogenesis and remodelling within the bone tunnel was demonstrated in the steroid-induced osteonecrosis, accompanied by inferior mechanical properties of the bone. We have confirmed impaired bone healing in a model of bone defects in rabbits with pulsed administration of corticosteroids. This finding may be important in the development of strategies for treatment to improve the prognosis of fracture healing or the repair of bone defects in patients receiving steroid treatment.
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Affiliation(s)
- X.-H. Xie
- Department of Orthopaedics and Traumatology, Musculoskeletal Research Laboratory, 5/F, Clinical Science Building, Prince of Wales Hospital, The Chinese University of Hong Kong SAR, People’s Republic of China
| | - X.-L. Wang
- Department of Orthopaedics and Traumatology, Musculoskeletal Research Laboratory, 5/F, Clinical Science Building, Prince of Wales Hospital, The Chinese University of Hong Kong SAR, People’s Republic of China
| | - G. Zhang
- Department of Orthopaedics and Traumatology, Musculoskeletal Research Laboratory, 5/F, Clinical Science Building, Prince of Wales Hospital, The Chinese University of Hong Kong SAR, People’s Republic of China
| | - Z. Liu
- Department of Orthopaedics and Traumatology, Musculoskeletal Research Laboratory, 5/F, Clinical Science Building, Prince of Wales Hospital, The Chinese University of Hong Kong SAR, People’s Republic of China
| | - D. Yao
- Department of Orthopaedics and Traumatology, Musculoskeletal Research Laboratory, 5/F, Clinical Science Building, Prince of Wales Hospital, The Chinese University of Hong Kong SAR, People’s Republic of China
| | - L.-K. Hung
- Department of Orthopaedics and Traumatology, Musculoskeletal Research Laboratory, 5/F, Clinical Science Building, Prince of Wales Hospital, The Chinese University of Hong Kong SAR, People’s Republic of China
| | - V. W.-Y. Hung
- Department of Orthopaedics and Traumatology, Musculoskeletal Research Laboratory, 5/F, Clinical Science Building, Prince of Wales Hospital, The Chinese University of Hong Kong SAR, People’s Republic of China
| | - L. Qin
- Department of Orthopaedics and Traumatology, Musculoskeletal Research Laboratory, 5/F, Clinical Science Building, Prince of Wales Hospital, The Chinese University of Hong Kong SAR, People’s Republic of China
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Abstract
Polymerase chain reaction (PCR) technology plays an important role in molecular biology research, but false-positive and nonspecific PCR amplification have plagued many researchers. Currently, research on the optimization of the PCR system focuses on double-primer-based PCR products. This research has shown that PCR amplification based on single-primer binding to the DNA template is an important contributing factor to obtaining false-positive results, fragment impurity, and nonspecific fragment amplification, when the PCR conditions are highly restricted during PCR-based target gene cloning, detection of transgenic plants, simple-sequence repeat marker-assisted selection, and mRNA differential display. Here, we compared single- and double-primer amplification and proposed "single-primer PCR correction"; improvements in PCR that eliminate interference caused by single-primer-based nonspecific PCR amplification were demonstrated and the precision and success rates of experiments were increased. Although for some kinds of experiments, the improvement effect of single-primer PCR correction was variable, the precision and success rate could be elevated at 12-50% in our experiment by this way.
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Affiliation(s)
- J Ma
- Biotechnology Center of Jilin Agricultural University, Changchun, PR China
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Ma J, Guan SC, Yao D, Wei YF, Wang PW. Problems with and a system to eliminate single-primer PCR product contamination in simple sequence repeat molecular marker-assisted selection in soybean. Genet Mol Res 2011; 10:1659-68. [PMID: 21863558 DOI: 10.4238/vol10-3gmr1366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Polymerase chain reaction (PCR) provides a foundation for simple sequence repeat molecular marker-assisted selection (SSR MAS) in soybean. This PCR system and its various conditions have been optimized by many researchers. However, current research on the optimization of the PCR system focuses on double-primer PCR products. We compared single- and double-SSR primer PCR products from 50 soybean samples and found that the use of single-PCR primers in the reaction system can lead to amplified fragments of portions of the SSR primers in the PCR process, resulting in both false-positives and fragment impurity of double-primer PCR amplification, inconvenient for subsequent analysis. We used "single-primer PCR correction" to eliminate interference caused by single-primer nonspecific PCR amplification and improve PCR quality. Using this method, the precision and success rates of SSR MAS in soybean can be increased.
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Affiliation(s)
- J Ma
- Biotechnology Center, Jilin Agricultural University, Changchun, P.R. China
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Li S, Luo C, Yu B, Yan B, Gong Q, He C, He L, Huang X, Yao D, Lui S, Tang H, Chen Q, Zeng Y, Zhou D. Functional magnetic resonance imaging study on dysphagia after unilateral hemispheric stroke: a preliminary study. J Neurol Neurosurg Psychiatry 2009; 80:1320-9. [PMID: 19515639 DOI: 10.1136/jnnp.2009.176214] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Swallowing dysfunction is common and disabling after acute stroke; however, the mechanism of dysphagia or recovery of swallowing from dysphagia remains uncertain. The purpose of this study was to explore cerebral activation of swallowing in dysphagia using functional MRI (fMRI) to compare the functional anatomy of swallowing in unilateral hemispheric stroke patients and healthy adults. METHODS In total, five left hemispheric stroke patients with dysphagia, five right hemispheric stroke patients with dysphagia and 10 healthy controls were examined with event related fMRI while laryngeal swallow related movements were recorded. Data were processed using the general linear model. RESULTS A multifocal cerebral representation of swallowing was identified predominantly in the left hemisphere, in a bilateral and asymmetrical manner. Cerebral activation during swallowing tasks was localised to the precentral, postcentral and anterior cingulate gyri, insula and thalamus in all groups. Activation of volitional swallowing in dysphagic unilateral hemispheric stroke patients might require reorganisation of the dominant hemispheric motor cortex, or a compensatory shift in activation to unaffected areas of the hemisphere. CONCLUSIONS The results indicate that unilateral stroke of either cerebral hemisphere can produce dysphagia. Effective recovery is associated with cerebral activation related to cortical swallowing representation in the compensating or recruited areas of the intact hemisphere. Functional MRI is a useful method for exploring the spatial localisation of changes in neuronal activity during tasks that may be related to recovery. Therefore, the subsequent information gleaned from changes in neural plasticity could be useful for assessing the prognosis of dysphagic stroke.
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Affiliation(s)
- S Li
- Department of Neurology, West China Hospital of Sichuan University, Chengdu, Sichuan, PR China
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Bejat G, Yao D, Hu J, Murray G, Sessle B. Effects of noxious stimulation of orofacial tissues on rat licking behaviour. Arch Oral Biol 2008; 53:361-8. [DOI: 10.1016/j.archoralbio.2007.09.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2007] [Revised: 09/21/2007] [Accepted: 09/28/2007] [Indexed: 10/22/2022]
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Sessle BJ, Adachi K, Avivi-Arber L, Lee J, Nishiura H, Yao D, Yoshino K. Neuroplasticity of face primary motor cortex control of orofacial movements. Arch Oral Biol 2007; 52:334-7. [PMID: 17174267 DOI: 10.1016/j.archoralbio.2006.11.002] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2006] [Revised: 10/30/2006] [Accepted: 11/02/2006] [Indexed: 10/23/2022]
Abstract
We have carried out a series of studies to address the role of the face primary motor area (MI) in the cerebral cortex in trained or semi-automatic orofacial motor behaviours and in behavioural adaptations to an altered oral environment. These studies have utilized intracortical microstimulation (ICMS), reversible cold block or single neurone recordings in face MI. Our studies in monkeys have revealed that face MI plays a strategic role in elemental and learned motor behaviours and in certain aspects of chewing and swallowing. Furthermore, successful training of awake monkeys in a novel tongue-protrusion task is associated with significant neuroplastic changes in face MI. These findings in monkeys are supported by correlated findings in humans which have revealed significantly enhanced corticomotoneuronal excitability when humans learn the novel tongue-protrusion task. Our related ICMS studies in rats reveal that trimming or extraction of the rat's lower incisors or damage to the rat's lingual nerve can result in significant changes in the MI representations of the tongue or jaw muscles. These various findings suggest that the face MI is important in orofacial motor skill acquisition and adaptation to an altered occlusion or loss of teeth or lingual sensory function, and that it reflects dynamic and modifiable constructs that are modelled by behaviourally significant experiences and that are critical to learning and adaptive processes.
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Affiliation(s)
- B J Sessle
- Faculty of Dentistry, University of Toronto, 124 Edward Street, Toronto, Ontario, Canada M5G 1G6.
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Li Y, Yao D. SU-FF-T-350: Optimizing the MLC Apertures for Conformal Radiotherapy with a Hybrid Algorithm. Med Phys 2006. [DOI: 10.1118/1.2241271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Yongjie L, Yao D, Yao J. Optimization of Beam Angles in IMRT Using Ant Colony Optimization Algorithm. Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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