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Chang HC, Wang LU, Chiou HY, Chen RC, Chen HF, Yao CW, Liu SL, Chen KC, Liao YT, Lin TC, Chuang WP, Wang JK. Impact of Telemedicine on Blood Glucose Control and Ophthalmic Screenings for Patients with Diabetes in Remote Areas During the COVID-19 Pandemic: A Real-World Study in Northern Taiwan. Telemed J E Health 2024. [PMID: 38739447 DOI: 10.1089/tmj.2024.0147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/15/2024] Open
Abstract
Introduction: The purpose of this study was to assess the impact of telemedicine on ophthalmic screening and blood glucose control for patients with diabetes in remote areas of Northern Taiwan during the coronavirus disease 2019 (COVID-19) pandemic. Methods: Telemedicine was implemented in Shiding and Wanli Districts using a 5G platform from April 2021 to December 2022. Patients with poorly controlled diabetes received real-time consultations from endocrinologists at Far Eastern Memorial Hospital, 50 km away, for medication adjustment, diet control, and lifestyle recommendations. The study also provided cloud-upload blood glucose meters for self-monitoring and regular medical advice from hospital nurses. Ophthalmic screenings included fundus imaging, external eye image, and intraocular pressure measurement, with instant communication and diagnosis by ophthalmologists through telemedicine. A satisfaction questionnaire survey was conducted. Results: The study enrolled 196 patients with diabetes. Blood glucose and glycosylated hemoglobin levels were significantly reduced after applying telemedicine (p = 0.01 and p = 0.005, respectively). Ophthalmic screenings led to hospital referrals for 16.0% with abnormal fundus images, 15.6% with severe cataract or anterior segment disorders, and 27.9% with ocular hypertension or glaucoma. Fundus screening rates remained high at 86.3% and 80.4% in 2022, mainly using telemedicine, comparable with the traditional screening rate in the past 5 years. The overall satisfaction rate was 98.5%. Conclusions: Telemedicine showed effectiveness and high satisfaction in managing diabetes and conducting ophthalmic screenings in remote areas during the COVID-19 pandemic. It facilitated early diagnosis and treatment of ocular conditions while maintaining good blood glucose control and fundus screening rates.
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Affiliation(s)
- Hao-Chun Chang
- Department of Ophthalmology, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Ling-Uei Wang
- Department of Ophthalmology, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Hung-Yi Chiou
- Institute of Population Health Sciences, National Health Research Institute, Zhunan, Taiwan
| | - Ran-Chou Chen
- Department of Health, New Taipei City Government, New Taipei City, Taiwan
| | - Hua-Fen Chen
- Department of Endocrinology, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Chih-Wei Yao
- Shiding District Health Center, Department of Health, New Taipei City Government, New Taipei City, Taiwan
| | - Shang-Lin Liu
- Wanli District Health Center, Department of Health, New Taipei City Government, New Taipei City, Taiwan
| | - Kuo-Cheng Chen
- Far EasTone Telecommunications Co., Ltd., Taipei City, Taiwan
| | - Yu-Ting Liao
- Institute of Population Health Sciences, National Health Research Institute, Zhunan, Taiwan
- Center for Community Health Development, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Tzu-Chun Lin
- Center for Community Health Development, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Wen-Po Chuang
- Center for Community Health Development, Far Eastern Memorial Hospital, New Taipei City, Taiwan
- Division of Cardiology, Cardiovascular Medical Center, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Jia-Kang Wang
- Department of Ophthalmology, Far Eastern Memorial Hospital, New Taipei City, Taiwan
- Department of Electrical Engineering, Yuan Ze University, Taoyuan City, Taiwan
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Huang CH, Liao YT, Chen CL, Tsai GJ. Protective effect of Ganoderma lucidum-fermented crop extracts against hydrogen peroxide- or β-amyloid-induced damage in human neuronal SH-SY5Y cells. BMC Complement Med Ther 2024; 24:148. [PMID: 38580956 PMCID: PMC10996153 DOI: 10.1186/s12906-024-04409-1] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 02/20/2024] [Indexed: 04/07/2024] Open
Abstract
BACKGROUND Alzheimer's disease (AD) is a neurodegenerative disorder characterized by the accumulation of stacked β-amyloid peptides in the brain and associated with the generation of oxidative stress. So far, there is no cure for AD or a way to stop its progression. Although the neuroprotective effects of Ganoderma lucidum aqueous extract and G. lucidum-derived triterpenoids and polysaccharides have been reported, the influence of G. lucidum-fermented crops on AD still lacks clarity. METHODS This study aimed to investigate the protective effect of G. lucidum-fermented crop extracts against hydrogen peroxide- or β-amyloid peptide (Aβ25-35)-induced damage in human neuroblastoma SH-SY5Y cells. RESULTS Various extracts of G. lucidum-fermented crops, including extract A: 10% ethanol extraction using microwave, extract B: 70˚C water extraction, and extract C: 100˚C water extraction followed by ethanol precipitation, were prepared and analyzed. Extract B had the highest triterpenoid content. Extract C had the highest total glucan content, while extract A had the highest gamma-aminobutyric acid (GABA) content. The median inhibitory concentration (IC50, mg/g) for DPPH and ABTS scavenging activity of the fermented crop extracts was significantly lower than that of the unfermented extract. Pretreatment with these extracts significantly increased the cell viability of SH-SY5Y cells damaged by H2O2 or Aβ25-35, possibly by reducing cellular reactive oxygen species (ROS) and malondialdehyde (MDA) levels and increasing superoxide dismutase (SOD), glutathione peroxidase (GPx) and catalase (CAT) activities. Moreover, extract B markedly alleviated the activity of acetylcholinesterase (AChE), which is crucial in the pathogenesis of AD. CONCLUSION These results clearly confirmed the effects of G. lucidum-fermented crop extracts on preventing against H2O2- or Aβ25-35-induced neuronal cell death and inhibiting AChE activity, revealing their potential in management of AD.
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Affiliation(s)
- Chung-Hsiung Huang
- Department of Food Science, National Taiwan Ocean University, 2 Pei-Ning Road, Keelung, 202, Taiwan ROC
| | - Yu-Ting Liao
- Department of Food Science, National Taiwan Ocean University, 2 Pei-Ning Road, Keelung, 202, Taiwan ROC
| | - Chien-Li Chen
- Department of Food Science, National Taiwan Ocean University, 2 Pei-Ning Road, Keelung, 202, Taiwan ROC
| | - Guo-Jane Tsai
- Department of Food Science, National Taiwan Ocean University, 2 Pei-Ning Road, Keelung, 202, Taiwan ROC.
- Center for Marine Bioscience and Biotechnology, National Taiwan Ocean University, Keelung, Taiwan.
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Liu YH, Liao YT, Shao XD, Yang ZY, Li D, Liu L, Shao LD. Biomimetic Total Synthesis of Bimagnolignan: A Natural Anti-Breast Cancer Agent. Org Lett 2024; 26:2376-2380. [PMID: 38484337 DOI: 10.1021/acs.orglett.4c00378] [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: 04/02/2024]
Abstract
A short scalable biomimetic route to bioactive natural product bimagnolignan (1) was accomplished. Compound 1 was successfully prepared through a three-step metal-free synthesis from honokiol (2). Alternatively, 1 was also synthesized by biomimetic transformations that mimic tyrosinase in four steps. The key reactions feature a regioselective acetylation, a highly efficient C(sp2)-H oxidation, a cascade aerobic oxidative cyclization/coupling, and a Cu-catalyzed direct oxidative coupling. In addition, cell-based assays validate that 1 is a promising natural lead for HER2-positive breast cancer treatment.
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Affiliation(s)
- Yu-Hong Liu
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China
| | - Yu-Ting Liao
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China
| | - Xiao-Dan Shao
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China
| | - Zhu-Ya Yang
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China
| | - Dashan Li
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China
| | - Lu Liu
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China
| | - Li-Dong Shao
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650500, China
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Yao DY, Chen YP, Ding F, Hu XS, Liang ZZ, Xing B, Cao YF, Zhang TQ, Wang XL, Liao YT, Yang J, Lyu HK. [Immunogenicity, safety and immune persistence of the sequential booster with the recombinant protein-based COVID-19 vaccine (CHO cell) in healthy people aged 18-84 years]. Zhonghua Yu Fang Yi Xue Za Zhi 2024; 58:25-32. [PMID: 38228546 DOI: 10.3760/cma.j.cn112150-20230423-00317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Objective: To evaluate the immunogenicity, safety, and immune persistence of the sequential booster with the recombinant protein-based COVID-19 vaccine (CHO cell) in healthy people aged 18-84 years. Methods: An open-label, multi-center trial was conducted in October 2021. The eligible healthy individuals, aged 18-84 years who had completed primary immunization with the inactivated COVID-19 vaccine 3 to 9 months before, were recruited from Shangyu district of Shaoxing and Kaihua county of Quzhou, Zhejiang province. All participants were divided into three groups based on the differences in prime-boost intervals: Group A (3-4 months), Group B (5-6 months) and Group C (7-9 months), with 320 persons per group. All participants received the recombinant COVID-19 vaccine (CHO cell). Blood samples were collected before the vaccination and after receiving the booster at 14 days, 30 days, and 180 days for analysis of GMTs, antibody positivity rates, and seroconversion rates. All adverse events were collected within one month and serious adverse events were collected within six months. The incidences of adverse reactions were analyzed after the booster. Results: The age of 960 participants was (52.3±11.5) years old, and 47.4% were males (455). The GMTs of Groups B and C were 65.26 (54.51-78.12) and 60.97 (50.61-73.45) at 14 days after the booster, both higher than Group A's 44.79 (36.94-54.30) (P value<0.05). The GMTs of Groups B and C were 23.95 (20.18-28.42) and 27.98 (23.45-33.39) at 30 days after the booster, both higher than Group A's 15.71 (13.24-18.63) (P value <0.05). At 14 days after the booster, the antibody positivity rates in Groups A, B, and C were 91.69% (276/301), 94.38% (302/320), and 93.95% (295/314), respectively. The seroconversion rates in the three groups were 90.37% (272/301), 93.75% (300/320), and 93.31% (293/314), respectively. There was no significant difference among these rates in the three groups (all P values >0.05). At 30 days after the booster, antibody positivity rates in Groups A, B, and C were 79.60% (238/299), 87.74% (279/318), and 90.48% (285/315), respectively. The seroconversion rates in the three groups were 76.92% (230/299), 85.85% (273/318), and 88.25% (278/315), respectively. There was a significant difference among these rates in the three groups (all P values <0.001). During the sequential booster immunization, the incidence of adverse events in 960 participants was 15.31% (147/960), with rates of about 14.38% (46/320), 17.50% (56/320), and 14.06% (45/320) in Groups A, B, and C, respectively. The incidence of adverse reactions was 8.02% (77/960), with rates of about 7.50% (24/320), 6.88% (22/320), and 9.69% (31/320) in Groups A, B, and C, respectively. No serious adverse events related to the booster were reported. Conclusion: Healthy individuals aged 18-84 years, who had completed primary immunization with the inactivated COVID-19 vaccine 3 to 9 months before, have good immunogenicity and safety profiles following the sequential booster with the recombinant COVID-19 vaccine (CHO cell).
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Affiliation(s)
- D Y Yao
- School of Public Health, Hangzhou Normal University, Hangzhou 311121, China
| | - Y P Chen
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - F Ding
- Anhui Zhifei Longcom Biopharmaceutical Company, Hefei 230088, China
| | - X S Hu
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Z Z Liang
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - B Xing
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Y F Cao
- School of Public Health, Hangzhou Normal University, Hangzhou 311121, China
| | - T Q Zhang
- Anhui Zhifei Longcom Biopharmaceutical Company, Hefei 230088, China
| | - X L Wang
- Anhui Zhifei Longcom Biopharmaceutical Company, Hefei 230088, China
| | - Y T Liao
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics/National Institute of Diagnostics and Vaccine Development in Infectious Diseases/School of Public Health, Xiamen University, Xiamen 361104, China
| | - J Yang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics/National Institute of Diagnostics and Vaccine Development in Infectious Diseases/School of Public Health, Xiamen University, Xiamen 361104, China
| | - H K Lyu
- Department of Immunization Program, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
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Yeh SH, Yu JH, Chou PH, Wu SH, Liao YT, Huang YC, Chen TM, Wang JP. Proliferation and Differentiation Potential of Bone Marrow-Derived Mesenchymal Stem Cells From Children With Polydactyly and Adults With Basal Joint Arthritis. Cell Transplant 2024; 33:9636897231221878. [PMID: 38164917 PMCID: PMC10762874 DOI: 10.1177/09636897231221878] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 11/20/2023] [Accepted: 12/06/2023] [Indexed: 01/03/2024] Open
Abstract
This study compared the proliferation and differentiation potential of bone marrow-derived mesenchymal stem cells (BMSCs) derived from infants with polydactyly and adults with basal joint arthritis. The proliferation rate of adult and infant BMSCs was determined by the cell number changes and doubling times. The γH2AX immunofluorescence staining, age-related gene expression, senescence-associated β-galactosidase (SA-β-gal) staining were analyzed to determine the senescence state of adult and infant BMSCs. The expression levels of superoxide dismutases (SODs) and genes associated with various types of differentiation were measured using Real-Time Quantitative Polymerase Chain Reaction (RT-qPCR). Differentiation levels were evaluated through histochemical and immunohistochemical staining. The results showed that infant BMSCs had a significantly higher increase in cell numbers and faster doubling times compared with adult BMSCs. Infant BMSCs at late stages exhibited reduced γH2AX expression and SA-β-gal staining, indicating lower levels of senescence. The expression levels of senescence-related genes (p16, p21, and p53) in infant BMSCs were also lower than in adult BMSCs. In addition, infant BMSCs demonstrated higher antioxidative ability with elevated expression of SOD1, SOD2, and SOD3 compared with adult BMSCs. In terms of differentiation potential, infant BMSCs outperformed adult BMSCs in chondrogenesis, as indicated by higher expression levels of chondrogenic genes (SOX9, COL2, and COL10) and positive immunohistochemical staining. Moreover, differentiated cells derived from infant BMSCs exhibited significantly higher expression levels of osteogenic, tenogenic, hepatogenic, and neurogenic genes compared with those derived from adult BMSCs. Histochemical and immunofluorescence staining confirmed these findings. However, adult BMSCs showed lower adipogenic differentiation potential compared with infant BMSCs. Overall, infant BMSCs demonstrated superior characteristics, including higher proliferation rates, enhanced antioxidative activity, and greater differentiation potential into various lineages. They also exhibited reduced cellular senescence. These findings, within the context of cellular differentiation, suggest potential implications for the use of allogeneic BMSC transplantation, emphasizing the need for further in vivo investigation.
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Affiliation(s)
- Shih-Han Yeh
- Department of Orthopedic Surgery, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan
| | - Jin-Huei Yu
- Department of Orthopedic Surgery, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan
| | - Po-Hsin Chou
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei
| | - Szu-Hsien Wu
- Department of Surgery, School of Medicine, National Yang Ming Chiao Tung University, Taipei
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei
- Division of Plastic and Reconstructive Surgery, Department of Surgery, School of Medicine, National Defense Medical Center, Taipei
| | - Yu-Ting Liao
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei
| | - Yi-Chao Huang
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei
| | - Tung-Ming Chen
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei
- Division of Orthopedics, Taipei City Hospital Zhongxiao Branch, Taipei
| | - Jung-Pan Wang
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei
- Department of Surgery, School of Medicine, National Yang Ming Chiao Tung University, Taipei
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Liao YT, Du XY, Wang M, Zheng CX, Li D, Chen CH, Li RT, Shao LD. A silicon-containing aryl/penta-1,4-dien-3-one/amine hybrid exhibits antiproliferative effects on breast cancer cells by targeting the HSP90 C-terminus without inducing heat-shock response. RSC Med Chem 2023; 14:2625-2639. [PMID: 38107168 PMCID: PMC10718586 DOI: 10.1039/d3md00431g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 10/11/2023] [Indexed: 12/19/2023] Open
Abstract
A pharmacophore-hybridized strategy based on previously reported HSP90 C-terminal inhibitors was utilized to prepare 32 aryl/penta-1,4-dien-3-one/amine hybrids. Among them, a silicon-containing compound 1z exhibited remarkable broad-spectrum antiproliferative effects on various human breast cancer cell lines. Through fluorescence polarization and AlphaScreen-based assays, we demonstrated that 1z specifically inhibited the HSP90 C-terminus without affecting HSP90 N-terminus. Furthermore, 1z effectively inhibited the HSP90 C-terminus without inducing heat-shock response (HSR), leading to the degradation of its client proteins HER2, pAKT, AKT, and CDK4, causing G1 arrest of MCF-7 and SKBr3 cells, and ultimately contributing to apoptosis of these cells through caspase-3, caspase-8, and caspase-9 activation. Additionally, the penta-1,4-dien-3-one linker in the hybrid, a large bulky lipophilic substitution in the aryl fragment at the 3'-site, and the presence of N-methylpiperazine as the amine fragment were identified as crucial factors that significantly contributed to the observed antiproliferative activity through structure-activity relationship (SAR) analysis. Lastly, we found that 1z exhibited superior thermostability compared to vibsanin B derivatives and good in vitro metabolic stability in simulated intestinal fluid, representing one of the few reported silicon-containing HSP90 C-terminal inhibitors.
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Affiliation(s)
- Yu-Ting Liao
- Yunnan Key Laboratory of Southern Medicinal Resources, School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 China
| | - Xin-Ye Du
- Yunnan Key Laboratory of Southern Medicinal Resources, School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 China
- Faculty of Life Science and Technology, Kunming University of Science and Technology Kunming 650500 China
| | - Mei Wang
- Yunnan Key Laboratory of Southern Medicinal Resources, School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 China
| | - Chun-Xia Zheng
- Yunnan Key Laboratory of Southern Medicinal Resources, School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 China
| | - Dashan Li
- Yunnan Key Laboratory of Southern Medicinal Resources, School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 China
| | - Chuan-Huizi Chen
- Yunnan Key Laboratory of Southern Medicinal Resources, School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 China
| | - Rong-Tao Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology Kunming 650500 China
| | - Li-Dong Shao
- Yunnan Key Laboratory of Southern Medicinal Resources, School of Chinese Materia Medica, Yunnan University of Chinese Medicine Kunming 650500 China
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Huang HK, Hsueh KK, Liao YT, Wu SH, Chou PH, Yeh SH, Wang JP. Multilineage differentiation potential in the infant adipose- and umbilical cord-derived mesenchymal stem cells. J Chin Med Assoc 2023; 86:1083-1095. [PMID: 37691559 DOI: 10.1097/jcma.0000000000000990] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/12/2023] Open
Abstract
BACKGROUND This study aims to compare the biological properties of infant adipose-derived mesenchymal stem cells (infant ADSCs) from excised polydactyly fat tissue and umbilical cord-derived mesenchymal stem cells (UCSCs) in terms of proliferation and differentiation capabilities. The proliferation of infant ADSCs and UCSCs was analyzed by determining the fold changes of cell numbers and doubling time periods. METHODS The state of senescence and replicative stress was compared by analyzing the expression of age-related genes, senescence-associated β-galactosidase (SA-β-gal) staining, and phosphorylated histone variant H2AX (γH2AX) immunofluorescence staining. The expression levels of superoxide dismutase ( SODs ) and genes related to multilineage differentiation were analyzed using reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Differentiation levels were determined using histochemical staining, immunohistochemical staining, and immunofluorescence staining. RESULTS Infant ADSCs exhibited higher proliferation rates and expression levels of SOD1 , SOD2 , and SOD3 at passages 3-5 compared with UCSCs. Senescence related genes ( p16 , p21 , and p53 ), SA-β-gal staining, and replicative stress analysis were reduced in infant ADSCs. The expression levels of chondrogenic genes ( COL2 and COL10 ), osteogenic genes ( RUNX2 and ALP ), adipogenic genes ( LPL ), and hepatogenic genes ( ALB and TAT ) in infant ADSC-differentiated cells were significantly higher than those in UCSCs. Histochemical and immunofluorescence staining confirmed these results. Only the expression levels of tenogenic genes ( MMP3 , DCN , and COL3 ) in infant ADSC-differentiated cells were lower than those in UCSCs. CONCLUSION Infant ADSCs exhibit higher proliferation rates, reduced cellular senescence and replicative stress, better antioxidative activity, and higher differentiation potential toward chondrogenic, osteogenic, adipogenic and hepatogenic lineages than UCSCs.
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Affiliation(s)
- Hui-Kuang Huang
- Department of Surgery, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Department of Orthopaedics & Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Orthopaedics, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi, Taiwan, ROC
- Department of Food Nutrition, Chung Hwa University of Medical Technology, Tainan, Taiwan, ROC
- Department of Orthopedic Surgery, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan, ROC
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Division of Plastic and Reconstructive Surgery, Department of Surgery, School of Medicine, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Kuang-Kai Hsueh
- Department of Orthopedic Surgery, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan, ROC
| | - Yu-Ting Liao
- Department of Orthopaedics & Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Szu-Hsien Wu
- Department of Surgery, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Division of Plastic and Reconstructive Surgery, Department of Surgery, School of Medicine, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Po-Hsin Chou
- Department of Orthopaedics & Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Shih-Han Yeh
- Department of Orthopedic Surgery, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan, ROC
| | - Jung-Pan Wang
- Department of Surgery, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Department of Orthopaedics & Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
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Liu BC, Ma HY, Huang J, Luo YW, Zhang WB, Deng WW, Liao YT, Xie CM, Li Q. Does dual-layer spectral detector CT provide added value in predicting spread through air spaces in lung adenocarcinoma? A preliminary study. Eur Radiol 2023:10.1007/s00330-023-10440-6. [PMID: 37973632 DOI: 10.1007/s00330-023-10440-6] [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: 06/10/2023] [Revised: 08/29/2023] [Accepted: 10/03/2023] [Indexed: 11/19/2023]
Abstract
OBJECTIVES To examine the predictive value of dual-layer spectral detector CT (DLCT) for spread through air spaces (STAS) in clinical lung adenocarcinoma. METHODS A total of 225 lung adenocarcinoma cases were retrospectively reviewed for demographic, clinical, pathological, traditional CT, and spectral parameters. Multivariable logistic regression analysis was carried out based on three logistic models, including a model using traditional CT features (traditional model), a model using spectral parameters (spectral model), and an integrated model combining traditional CT and spectral parameters (integrated model). Receiver operating characteristic (ROC) curve analysis and decision curve analysis (DCA) were performed to assess these models. RESULTS Univariable analysis showed significant differences between the STAS and non-STAS groups in traditional CT features, including nodule density (p < 0.001), pleural indentation types (p = 0.006), air-bronchogram sign (p = 0.031), the presence of spiculation (p < 0.001), long-axis diameter of the entire nodule (LD) (p < 0.001), and consolidation/tumor ratio (CTR) (p < 0.001). Multivariable analysis revealed that LD > 20 mm (odds ratio [OR] = 2.271, p = 0.025) and CTR (OR = 24.208, p < 0.001) were independent predictors in the traditional model, while electronic density (ED) in the venous phase was an independent predictor in the spectral (OR = 1.062, p < 0.001) and integrated (OR = 1.055, p < 0.001) models. The area under the curve (AUC) for the integrated model (0.84) was the highest (spectral model, 0.83; traditional model, 0.80), and the difference between the integrated and traditional models was statistically significant (p = 0.015). DCA showed that the integrated model had superior clinical value versus the traditional model. CONCLUSIONS DLCT has added value for STAS prediction in lung adenocarcinoma. CLINICAL RELEVANCE STATEMENT Spectral CT has added value for spread through air spaces prediction in lung adenocarcinoma so may impact treatment planning in the future. KEY POINTS • Electronic density may be a potential spectral index for predicting spread through air spaces in lung adenocarcinoma. • A combination of spectral and traditional CT features enhances the performance of traditional CT for predicting spread through air spaces.
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Affiliation(s)
- Bao-Cong Liu
- State Key Laboratory of Oncology in South China, Department of Radiology, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China
| | - Hui-Yun Ma
- State Key Laboratory of Oncology in South China, Department of Radiology, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China
| | - Jin Huang
- State Key Laboratory of Oncology in South China, Department of Radiology, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China
| | - Ying-Wei Luo
- State Key Laboratory of Oncology in South China, Department of Radiology, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China
| | - Wen-Biao Zhang
- State Key Laboratory of Oncology in South China, Department of Radiology, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China
| | - Wei-Wei Deng
- Clinical & Technical Support, Philips Healthcare, Shanghai, People's Republic of China
| | - Yu-Ting Liao
- Clinical & Technical Support, Philips Healthcare, Shanghai, People's Republic of China
| | - Chuan-Miao Xie
- State Key Laboratory of Oncology in South China, Department of Radiology, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China.
| | - Qiong Li
- State Key Laboratory of Oncology in South China, Department of Radiology, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China.
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Ye S, Han Y, Pan X, Niu K, Liao Y, Meng X. Corrigendum: Association of CT-based delta radiomics biomarker with progression-free survival in patients with colorectal liver metastases undergo chemotherapy. Front Oncol 2023; 13:1283480. [PMID: 37795439 PMCID: PMC10545842 DOI: 10.3389/fonc.2023.1283480] [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: 08/26/2023] [Accepted: 09/05/2023] [Indexed: 10/06/2023] Open
Abstract
[This corrects the article DOI: 10.3389/fonc.2022.843991.].
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Affiliation(s)
- Shuai Ye
- The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yu Han
- The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - XiMin Pan
- The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - KeXin Niu
- The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - YuTing Liao
- GE Healthcare Pharmaceutical Diagnostics, Guangzhou, China
| | - XiaoChun Meng
- The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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Luo Z, Li J, Liao Y, Huang W, Li Y, Shen X. Prediction of response to preoperative neoadjuvant chemotherapy in extremity high-grade osteosarcoma using X-ray and multiparametric MRI radiomics. J Xray Sci Technol 2023; 31:611-626. [PMID: 37005907 DOI: 10.3233/xst-221352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
PURPOSE This study aims to evaluate the value of applying X-ray and magnetic resonance imaging (MRI) models based on radiomics feature to predict response of extremity high-grade osteosarcoma to neoadjuvant chemotherapy (NAC). MATERIALS AND METHODS A retrospective dataset was assembled involving 102 consecutive patients (training dataset, n = 72; validation dataset, n = 30) diagnosed with extremity high-grade osteosarcoma. The clinical features of age, gender, pathological type, lesion location, bone destruction type, size, alkaline phosphatase (ALP), and lactate dehydrogenase (LDH) were evaluated. Imaging features were extracted from X-ray and multi-parametric MRI (T1-weighted, T2-weighted, and contrast-enhanced T1-weighted) data. Features were selected using a two-stage process comprising minimal-redundancy-maximum-relevance (mRMR) and least absolute shrinkage and selection operator (LASSO) regression. Logistic regression (LR) modelling was then applied to establish models based on clinical, X-ray, and multi-parametric MRI data, as well as combinations of these datasets. Each model was evaluated using sensitivity, specificity, and area under the receiver operating characteristic curve (AUC) with a 95% confidence interval (CI). RESULTS AUCs of 5 models using clinical, X-ray radiomics, MRI radiomics, X-ray plus MRI radiomics, and combination of all were 0.760 (95% CI: 0.583-0.937), 0.706 (95% CI: 0.506-0.905), 0.751 (95% CI: 0.572-0.930), 0.796 (95% CI: 0.629-0.963), 0.828 (95% CI: 0.676-0.980), respectively. The DeLong test showed no significant difference between any pair of models (p > 0.05). The combined model yielded higher performance than the clinical and radiomics models as demonstrated by net reclassification improvement (NRI) and integrated difference improvement (IDI) values, respectively. This combined model was also found to be clinically useful in the decision curve analysis (DCA). CONCLUSION Modelling based on combination of clinical and radiomics data improves the ability to predict pathological responses to NAC in extremity high-grade osteosarcoma compared to the models based on either clinical or radiomics data.
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Affiliation(s)
- Zhendong Luo
- Department of Radiology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Jing Li
- Department of Radiology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | | | - Wenxiao Huang
- Department of Radiology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Yulin Li
- Department of Radiology, Peking Universtiy Shenzhen Hospital, Shenzhen, China
| | - Xinping Shen
- Department of Radiology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
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Liao YT, Hsiao YC, Lo YC, Lin CC, Lin PS, Tung SH, Wong KT, Liu CL. Solution-Processed Isoindigo- and Thienoisoindigo-Based Donor-Acceptor-Donor π-Conjugated Small Molecules: Synthesis, Morphology, Molecular Packing, and Field-Effect Transistor Characterization. ACS Appl Mater Interfaces 2022; 14:55886-55897. [PMID: 36508279 DOI: 10.1021/acsami.2c18049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Molecular design and precise control of thin-film morphology and crystallinity of solution-processed small molecules are important for enhancing charge transport mobility of organic field-effect transistors and gaining more insight into the structure-property relationship. Here, two donor-acceptor-donor (D-A-D) architecture small molecules TRA-IID-TRA and TRA-TIID-TRA comprising an electron-donating triarylamine (TRA) and two different electron-withdrawing cores, isoindigo (IID) and thienoisoindigo (TIID), respectively, were synthesized and characterized. Replacing the phenylene rings of central IID A with thiophene gives a TIID core, which reduces the optical band gap and upshifts the energy levels of frontier molecular orbitals. The single-crystal structures and grazing-incidence wide-angle X-ray scattering (GIWAXS) analysis revealed that TRA-TIID-TRA exhibits the relatively tighter π-π stacking packing with preferential edge-on orientation, larger coherence length, and higher crystallinity due to the noncovalent S···O/S···π intermolecular interactions. The distinctly oriented and connected ribbon-like TRA-TIID-TRA crystalline film by the solution-shearing process achieved a superior hole mobility of 0.89 cm2 V-1 s-1 in the organic field-effect transistor (OFET) device, which is at least five times higher than that (0.17 cm2 V-1 s-1) of TRA-IID-TRA with clear cracks. Eventually, rational modulation of fused core in the π-conjugated D-A-D small molecule provides a new understanding of structural design for enhancing the performance of solution-processed organic semiconductors.
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Affiliation(s)
- Yu-Ting Liao
- Department of Chemistry, National Taiwan University, Taipei10617, Taiwan
| | - Yi-Chun Hsiao
- Department of Materials Science and Engineering, National Taiwan University, Taipei10617, Taiwan
| | - Yuan-Chih Lo
- Department of Chemistry, National Taiwan University, Taipei10617, Taiwan
| | - Chia-Chi Lin
- Department of Chemical and Materials Engineering, National Central University, Taoyuan32001, Taiwan
| | - Po-Shen Lin
- Department of Materials Science and Engineering, National Taiwan University, Taipei10617, Taiwan
| | - Shih-Huang Tung
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei10617, Taiwan
| | - Ken-Tsung Wong
- Department of Chemistry, National Taiwan University, Taipei10617, Taiwan
- Institute of Atomic and Molecular Science, Academia Sinica, Taipei10617, Taiwan
| | - Cheng-Liang Liu
- Department of Materials Science and Engineering, National Taiwan University, Taipei10617, Taiwan
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Wang JL, Han X, Li JX, Shi R, Liu LL, Wang K, Liao YT, Jiang H, Zhang Y, Hu JC, Zhang LM, Shi L. Differential analysis of intestinal microbiota and metabolites in mice with dextran sulfate sodium-induced colitis. World J Gastroenterol 2022; 28:6109-6130. [PMID: 36483152 PMCID: PMC9724481 DOI: 10.3748/wjg.v28.i43.6109] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 10/04/2022] [Accepted: 11/03/2022] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Intestinal micro-ecological imbalances impair the intestinal barrier and induce intestinal inflammation, for example, ulcerative colitis (UC). According to the latest research, abnormalities in intestinal microbiota structure and their metabolites play a dominant role in UC progression; in addition, they could affect the mucus barrier based on different factors. Although numerous studies have confirmed the important role of intestinal microbiota in UC pathogenesis, the intricate connection between microbiota and metabolites and mucus barrier in UC occurrence remains unclear, and correlation analyses of differential microbiota and their metabolites under UC are relatively scarce.
AIM To reveal the differential intestinal microbiota and metabolites in UC pathogenesis and explore more sensitive biomarker compositions.
METHODS We used the antibiotic combination method to establish intestinal pseudo-aseptic mice; afterward, dextran sulfate sodium (DSS) was applied to establish an acute experimental colitis mice model. Colitis severity, assessed based on disease activity index, colorectal length, colorectal wet weight, and histological lesions, and mucus-related staining (mucopolysaccharide alcian blue and immunofluorescence of mucin), was compared between the pseudo-aseptic and bacterial colitis mice. Finally, differential intestinal microbiota, metabolites, and their association and correlations, were analyzed by 16s rDNA sequencing in combination with non-targeted metabolomics, through gas chromatography-mass spectrometry.
RESULTS Compared with the pseudo-aseptic mice, intestinal bacteria positive mice were more severely ill and their intestinal mucus loss was more pronounced in DSS-induced colitis (P < 0.05), suggesting that different microbiota and metabolites could cause the different degrees of colitis. Subsequently, we observed that in addition to Klebsiella, and Bacteroides, which were widely associated with colitis, Candidatus Stoquefichus, Anaerobiospirillum, Muribaculum, and Negativibacillus may be involved in protection against colitis. Furthermore, differential metabolites of the microbiota were mainly enriched in the synthesis-related pathways of key structural sequences of mucin. In combination with the mucin-related staining and immunofluorescence results, the findings indicate that the differential microbiota and their metabolites potentially regulate the composition and function of mucus under colitis.
CONCLUSION Microbiota and their metabolites are major factors regulating the composition and function of mucus, in turn influencing the function and structure of intestinal mucus barrier under colitis. The different microbiota and metabolites identified in the present study could be novel biomarkers for colitis.
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Affiliation(s)
- Jia-Li Wang
- Graduate School, Beijing University of Chinese Medicine, Beijing 100029, China
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Xiao Han
- Graduate School, Beijing University of Chinese Medicine, Beijing 100029, China
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Jun-Xiang Li
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Rui Shi
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Lei-Lei Liu
- College of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Kai Wang
- Department of Emergency, The First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Yu-Ting Liao
- Department of Geriatrics, Gulou Hospital of Traditional Chinese Medicine, Beijing 100009, China
| | - Hui Jiang
- Graduate School, Beijing University of Chinese Medicine, Beijing 100029, China
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Yang Zhang
- Graduate School, Beijing University of Chinese Medicine, Beijing 100029, China
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Jun-Cong Hu
- Graduate School, Beijing University of Chinese Medicine, Beijing 100029, China
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Li-Ming Zhang
- Graduate School, Beijing University of Chinese Medicine, Beijing 100029, China
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Lei Shi
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
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Liao YT, Chen WX, Zhu HX, Wu WL, Peng BW, Zuo YL, Zhuo MQ, Chen ZZ, Shen HL, Li XJ. [A case of infantile anti-AMPA2 receptor encephalitis]. Zhonghua Er Ke Za Zhi 2022; 60:1207-1209. [PMID: 36319159 DOI: 10.3760/cma.j.cn112140-20220601-00502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- Y T Liao
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - W X Chen
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - H X Zhu
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - W L Wu
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - B W Peng
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - Y L Zuo
- Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - M Q Zhuo
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - Z Z Chen
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - H L Shen
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - X J Li
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
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Ye S, Han Y, Pan X, Niu K, Liao Y, Meng X. Association of CT-Based Delta Radiomics Biomarker With Progression-Free Survival in Patients With Colorectal Liver Metastases Undergo Chemotherapy. Front Oncol 2022; 12:843991. [PMID: 35692757 PMCID: PMC9184515 DOI: 10.3389/fonc.2022.843991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 04/25/2022] [Indexed: 11/18/2022] Open
Abstract
Predicting the prognosis of patients in advance is conducive to providing personalized treatment for patients. Our aim was to predict the therapeutic efficacy and progression free survival (PFS) of patients with liver metastasis of colorectal cancer according to the changes of computed tomography (CT) radiomics before and after chemotherapy. Methods This retrospective study included 139 patients (397 lesions) with colorectal liver metastases who underwent neoadjuvant chemotherapy from April 2015 to April 2020. We divided the lesions into training cohort and testing cohort with a ratio of 7:3. Two - dimensional region of interest (ROI) was obtained by manually delineating the largest layers of each metastasis lesion. The expanded ROI (3 mm and 5 mm) were also included in the study to characterize microenvironment around tumor. For each of the ROI, 1,316 radiomics features were extracted from delineated plain scan, arterial, and venous phase CT images before and after neoadjuvant chemotherapy. Delta radiomics features were constructed by subtracting the radiomics features after treatment from the radiomics features before treatment. Univariate Cox regression and the Least Absolute Shrinkage and Selection Operator (LASSO) Cox regression were applied in the training cohort to select the valuable features. Based on clinical characteristics and radiomics features, 7 Cox proportional-hazards model were constructed to predict the PFS of patients. C-index value and Kaplan Meier (KM) analysis were used to evaluate the efficacy of predicting PFS of these models. Moreover, the prediction performance of one-year PFS was also evaluated by area under the curve (AUC). Results Compared with the PreRad (Radiomics form pre-treatment CT images; C-index [95% confidence interval (CI)] in testing cohort: 0.614(0.552-0.675) and PostRad models (Radiomics form post-treatment CT images; 0.642(0.578-0.707), the delta model has better PFS prediction performance (Delta radiomics; 0.688(0.627-0.749). By incorporating clinical characteristics, CombDeltaRad obtains the best performance in both training cohort [C-index (95% CI): 0.802(0.772-0.832)] and the testing cohort (0.744(0.686-0.803). For 1-year PFS prediction, CombDeltaRad model obtained the best performance with AUC (95% CI) of 0.871(0.828-0.914) and 0.745 (0.651-0.838) in training cohort and testing cohort, respectively. Conclusion CT radiomics features have the potential to predict PFS in patients with colorectal cancer and liver metastasis who undergo neoadjuvant chemotherapy. By combining pre-treatment radiomics features, post-treatment radiomics features, and clinical characteristics better prediction results can be achieved.
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Affiliation(s)
- Shuai Ye
- The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yu Han
- The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - XiMin Pan
- The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - KeXin Niu
- The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - YuTing Liao
- GE Healthcare Pharmaceutical Diagnostics, Guangzhou, China
| | - XiaoChun Meng
- The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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Chen R, Liao YT, Gao TT, Zhang YM, Lu LH, Wang CH. Novel Salt-Tolerant Leucine Dehydrogenase from Marine Pseudoalteromonas rubra DSM 6842. Mol Biotechnol 2022; 64:1270-1278. [PMID: 35578070 DOI: 10.1007/s12033-022-00505-0] [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: 12/15/2021] [Accepted: 05/02/2022] [Indexed: 10/18/2022]
Abstract
This study reported the cloning, expression, and characterization of a new salt-tolerant leucine dehydrogenase (PrLeuDH) from Pseudoalteromonas rubra DSM 6842. A codon-optimized 1038 bp gene encoding PrLeuDH was successfully expressed on pET-22b( +) in E. coli BL21(DE3). The purified recombinant PrLeuDH showed a single band of about 38.7 kDa on SDS-PAGE. It exhibited the maximum activity at 40 °C and pH 10.5, while kept high activities in the range of 25-45 °C and pH 9.5-12. The Km value and turnover number kcat for leucine of PrLeuDH were 2.23 ± 0.12 mM and 35.39 ± 0.05 s-1, respectively, resulting in a catalytic efficiency kcat/Km of 15.87 s-1/mM. Importantly, PrLeuDH remained 92.1 ± 2.67% active in the presence of 4.0 M NaCl. The study provides the first in-depth understanding of LeuDH from marine Pseudoalteromonas rubra, meanwhile the unique properties of high activity at low temperature and high salt tolerance make it a promising biocatalyst for the synthesis of non-protein amino acids and α-ketoacids under special conditions in pharmaceutical industry.
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Affiliation(s)
- Rui Chen
- College of Light Industry and Food Engineering, Guangxi University, 100 Daxue East Road, Nanning, 530004, People's Republic of China
| | - Yu-Ting Liao
- College of Light Industry and Food Engineering, Guangxi University, 100 Daxue East Road, Nanning, 530004, People's Republic of China
| | - Tian-Tian Gao
- College of Light Industry and Food Engineering, Guangxi University, 100 Daxue East Road, Nanning, 530004, People's Republic of China
| | - Yan-Mei Zhang
- College of Light Industry and Food Engineering, Guangxi University, 100 Daxue East Road, Nanning, 530004, People's Republic of China
| | - Liang-Hua Lu
- College of Light Industry and Food Engineering, Guangxi University, 100 Daxue East Road, Nanning, 530004, People's Republic of China
| | - Cheng-Hua Wang
- College of Light Industry and Food Engineering, Guangxi University, 100 Daxue East Road, Nanning, 530004, People's Republic of China.
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Deng DB, Liao YT, Zhou JF, Cheng LN, He P, Wu SN, Wang WS, Zhou Q. Non-Invasive Prediction of Survival Time of Midline Glioma Patients Using Machine Learning on Multiparametric MRI Radiomics Features. Front Neurol 2022; 13:866274. [PMID: 35585843 PMCID: PMC9108285 DOI: 10.3389/fneur.2022.866274] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 03/31/2022] [Indexed: 11/22/2022] Open
Abstract
Objectives To explore the feasibility of predicting overall survival (OS) of patients with midline glioma using multi-parameter magnetic resonance imaging (MRI) features. Methods Data of 84 patients with midline gliomas were retrospectively collected, including 40 patients with OS > 12 months (28 cases were adults, 14 cases were H3 K27M-mutation) and 44 patients with OS < 12 months (29 cases were adults, 31 cases were H3 K27M-mutation). Features were extracted from the largest slice of tumors, which were manually segmented on T2-weighted (T2w), T2 fluid-attenuated inversion recovery (T2 FLAIR), and contrast-enhanced T1-weighted (T1c) images. Data were randomly divided into training (70%) and test cohorts (30%) and normalized and standardized using Z-scores. Feature dimensionality reduction was performed using the variance method and maximum relevance and minimum redundancy (mRMR) algorithm. We used the logistic regression algorithm to construct three models for T2w, T2 FLAIR, and T1c images as well as one combined model. The test cohort was used to evaluate the models, and receiver operating characteristic (ROC) curves, areas under the curve (AUCs), sensitivity, specificity, and accuracy were calculated. The nomogram of the combined model was built and evaluated using a calibration curve. Decision curve analysis (DCA) was used to evaluate the clinical application value of the four models. Results A total of 1,316 features were extracted from T2w, T2 FLAIR, and T1c images, respectively. And then the best non-redundant features were selected from the extracted features using the variance method and mRMR. Finally, five features were extracted each from T2w, T2 FLAIR, and T1c images, and 12 features were extracted for the combined model. Four models were established using the optimal features. In the test cohort, the combined model performed the best out of all models. The AUCs of the T2w, T2 FLAIR, T1c, and combined models were 0.73, 0.78, 0.74, and 0.87, respectively, and accuracies were 0.72, 0.76, 0.72, and 0.84, respectively. The ROC curves and DCA showed that the combined model had the highest efficiency and most favorable clinical benefits. Conclusion The combined radiomics model based on multi-parameter MRI features provided a reliable non-invasive method for the prognostic prediction of midline gliomas.
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Affiliation(s)
- Da-Biao Deng
- Department of Radiology, Third Affiliated Hospital of Southern Medical University (Academy of Orthopedics Guangdong), Guangzhou, China
- Imaging Department of Guangdong 999 Brain Hospital, Guangzhou, China
| | | | - Jiang-Fen Zhou
- Department of Neuro-Oncology of Guangdong 999 Brain Hospital, Guangzhou, China
| | - Li-Na Cheng
- Imaging Department of Guangdong 999 Brain Hospital, Guangzhou, China
| | - Peng He
- Imaging Department of Guangdong 999 Brain Hospital, Guangzhou, China
| | - Sheng-Nan Wu
- Imaging Department of Guangdong 999 Brain Hospital, Guangzhou, China
| | - Wen-Sheng Wang
- Imaging Department of Guangdong 999 Brain Hospital, Guangzhou, China
- *Correspondence: Wen-Sheng Wang
| | - Quan Zhou
- Department of Radiology, Third Affiliated Hospital of Southern Medical University (Academy of Orthopedics Guangdong), Guangzhou, China
- Quan Zhou
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Wang EST, Lin HC, Liao YT. Effects of social capital of social networking site on social identity and continuous participant behavior. OIR 2022. [DOI: 10.1108/oir-07-2021-0369] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
PurposeThe paper focuses on social capital as the characteristic of social groups that promote coordination; moreover, social identity plays a key role in the construction of group relationships. However, few research studies have looked at how the social capital of social networking sites (SNSs) is related to the social identity of its members. Drawing on social capital and social identity theory, this study investigated the effects of SNS social capital (shared language, social trust and network density) on social identity and continuous participation. The mediating role of social identity was also investigated.Design/methodology/approachIn total, 444 SNS members volunteered to participate in this study. Structural equation modeling was applied to analyze a conceptual model.FindingsThe results revealed that SNS social trust and network density directly and significantly affected the social identity and continuous participation behavior of members. SNSs using a shared language positively affected social identity, but this was not directly associated with continuous participation behavior.Originality/valueBecause the network externalities of SNSs exert critical effects on user benefits, attracting continuous user participation remains one of the critical challenges for SNS administrators. Both the theoretical and practical implications of this study can aid SNS administrators in developing effective continuous participation strategies.Peer reviewThe peer-review history for this article is available at: https://publons.com/publon/10.1108/OIR-07-2021-0369
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Luo Z, Li J, Liao Y, Liu R, Shen X, Chen W. Radiomics Analysis of Multiparametric MRI for Prediction of Synchronous Lung Metastases in Osteosarcoma. Front Oncol 2022; 12:802234. [PMID: 35273911 PMCID: PMC8901998 DOI: 10.3389/fonc.2022.802234] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 01/31/2022] [Indexed: 12/22/2022] Open
Abstract
Purpose To establish and verify a predictive model involving multiparameter MRI and clinical manifestations for predicting synchronous lung metastases (SLM) in osteosarcoma. Materials and Methods Seventy-eight consecutive patients with osteosarcoma (training dataset, n = 54; validation dataset, n = 24) were enrolled in our study. MRI features were extracted from the T1‐weighted image (T1WI), T2‐weighted image (T2WI), and contrast-enhanced T1-weighted image (CE-T1WI) of each patient. Least absolute shrinkage and selection operator (LASSO) regression and multifactor logistic regression were performed to select key features and build radiomics models in conjunction with logistic regression (LR) and support vector machine (SVM) classifiers. Eight individual models based on T1WI, T2WI, CE-T1WI, T1WI+T2WI, T1WI+CE-T1WI, T2WI+CE-T1WI, T1WI+T2WI+CE-T1WI, and clinical features, as well as two combined models, were built. The area under the receiver operating characteristic curve (AUC), sensitivity and specificity were employed to assess the different models. Results Tumor size was the most significant univariate clinical indicator (1). The AUC values of the LR predictive model based on T1WI, T2WI, CE-T1WI, T1WI+T2WI, T1WI+CE-T1WI, T2WI+CE-T1WI, and T1WI+T2WI+CE-T1WI were 0.686, 0.85, 0.87, 0.879, 0.736, 0.85, and 0.914, respectively (2). The AUC values of the SVM predictive model based on T1WI, T2WI, CE-T1WI, T1WI+T2WI, T1WI +CE-T1WI, T2WI +CE-T1WI, and T1WI+T2WI+CE-T1WI were 0.629, 0.829, 0.771, 0.879, 0.643, 0.829, and 0.929, respectively (3). The AUC values of the clinical, combined 1 (clinical and LR-radiomics) and combined 2 (clinical and SVM-radiomics) predictive models were 0.779, 0.957, and 0.943, respectively. Conclusion The combined model exhibited good performance in predicting osteosarcoma SLM and may be helpful in clinical decision-making.
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Affiliation(s)
- Zhendong Luo
- Department of Radiology, The University of Hong Kong - Shenzhen Hospital, Shenzhen, China
| | - Jing Li
- Department of Radiology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - YuTing Liao
- Department of Pharmaceuticals Diagnosis, GE Healthcare, Shanghai, China
| | - RengYi Liu
- Department of Radiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xinping Shen
- Department of Radiology, The University of Hong Kong - Shenzhen Hospital, Shenzhen, China
| | - Weiguo Chen
- Department of Radiology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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19
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Wu SH, Yu JH, Liao YT, Liu KH, Chiang ER, Chang MC, Wang JP. Comparison of the Infant and Adult Adipose-Derived Mesenchymal Stem Cells in Proliferation, Senescence, Anti-oxidative Ability and Differentiation Potential. Tissue Eng Regen Med 2022; 19:589-601. [PMID: 35247199 PMCID: PMC9130449 DOI: 10.1007/s13770-022-00431-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 12/26/2021] [Accepted: 01/05/2022] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Infant adipose-derived mesenchymal stem cells (ADSCs) collected from excised polydactyly fat tissue, which was surgical waste, could be cultured and expanded in vitro in this study. In addition, the collecting process would not cause pain in the host. In this study, the proliferation, reduction of senescence, anti-oxidative ability, and differentiation potential in the infant ADSCs were compared with those in the adult ADSCs harvested from thigh liposuction to determine the availability of infant ADSCs. METHODS Proliferation was determined by detecting the fold changes in cell numbers and doubling time periods. Senescence was analyzed by investigating the age-related gene expression levels and the replicative stress. The superoxide dismutase (SOD) gene expression, adipogenic, neurogenic, osteogenic, and tenogenic differentiation were compared by RT-qPCR. The chondrogenic differentiation efficiency was also determined using RT-qPCR and immunohistochemical staining. RESULTS The proliferation, SOD (SOD1, SOD2 and SOD3) gene expression, the stemness-related gene (c-MYC) and telomerase reverse transcriptase of the infant ADSCs at early passages were enhanced compared with those of the adults'. Cellular senescence related genes, including p16, p21 and p53, and replicative stress were reduced in the infant ADSCs. The adipogenic genes (PPARγ and LPL) and neurogenic genes (MAP2 and NEFH) of the infant ADSC differentiated cells were significantly higher than those of the adults' while the expression of the osteogenic genes (OCN and RUNX) and tenogenic genes (TNC and COL3A1) of both demonstrated opposite results. The chondrogenic markers (SOX9, COL2 and COL10) were enhanced in the infant ADSC differentiated chondrogenic pellets, and the expression levels of SODs were decreased during the differentiation process. CONCLUSION Cultured infant ADSCs demonstrate less cellular senescence and replicative stress, higher proliferation rates, better antioxidant defense activity, and higher potential of chondrogenic, adipogenic and neurogenic differentiation.
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Affiliation(s)
- Szu-Hsien Wu
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, 112 Taiwan ,Department of Surgery, School of Medicine, National Yang Ming Chiao Tung University, Taipei, 112 Taiwan ,Division of Plastic and Reconstructive Surgery, Department of Surgery, School of Medicine, National Defense Medical Center, Taipei, Taiwan
| | - Jin-Huei Yu
- Department of Orthopedic Surgery, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, 33004 Taiwan
| | - Yu-Ting Liao
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, 112 Taiwan
| | - Kuo-Hao Liu
- Department of Orthopaedics, National Yang Ming Chiao Tung University Hospital, Yilan, 260 Taiwan
| | - En-Rung Chiang
- Department of Surgery, School of Medicine, National Yang Ming Chiao Tung University, Taipei, 112 Taiwan ,Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, 112 Taiwan
| | - Ming-Chau Chang
- Department of Surgery, School of Medicine, National Yang Ming Chiao Tung University, Taipei, 112 Taiwan ,Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, 112 Taiwan
| | - Jung-pan Wang
- Department of Surgery, School of Medicine, National Yang Ming Chiao Tung University, Taipei, 112 Taiwan ,Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, 112 Taiwan
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20
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Liao YT, Chen WX, Hou C, Zhu HX, Chen LF, Zeng YR, Wu WX, Liang HC, Li XJ. [Hashimoto's encephalopathy presenting with isolated cerebellar ataxia in 13 children]. Zhonghua Er Ke Za Zhi 2022; 60:46-50. [PMID: 34986623 DOI: 10.3760/cma.j.cn112140-20210621-00516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To analyze the clinical characteristics, treatment and prognosis of Hashimoto's encephalopathy presenting with isolated cerebellar ataxia in children. Methods: A retrospective analysis was performed on the clinical features, laboratory tests, neuroelectrophysiological examination, imaging, treatment and outcomes of 13 patients with Hashimoto's encephalopathy presenting with isolated cerebellar ataxia, who were admitted to the Department of Pediatric Neurology of Guangzhou Women and Children's Medical Center from January 2016 to May 2021. Results: Among the 13 cases, 6 were males and 7 were females. The onset age was 2.6 (2.0,3.3) years, 9 children had precursor infection or vaccination before the first course of disease. All the 13 children had gait abnormalities or unsteady sitting, 10 had intentional tremor, 6 had dysarthria, 3 had body tremor, 2 had nystagmus, 3 had fatigue, 3 had hypotonia, 2 had vomiting and 1 had irritability. Thyroglobulin antibody (TgAb) was 500.0 (298.9,587.2) kU/L and thyroid peroxidase antibody (TPOAb) was 621.9 (449.6,869.4) kU/L in 13 cases. Autoantibodies were positive in 9 cases, and cerebrospinal fluid leukocytosis was seen in 4 cases. Regarding electroencephalography result, 4 cases had background slowing and 1 case had occasional sharp waves. Among the 3 patients who had relapses, 1 had cerebellar atrophy shown on cranial magnetic resonance imaging (MRI) during the recurrence. All the patients received intravenous immunoglobulin (IVIG) and intensive methylprednisolone therapy during the first onset, followed by the disappearance of the symptoms, 1 patient had repeated episodes which was decreased after immunosuppressive treatment with Rituximab.Followed up for 25.0 (22.5,33.3) months after the last episode, 12 achieved complete remission and 1 had a wide base gait. Conclusions: Trunk ataxia is the common symptom of Hashimoto's encephalopathy presenting with isolated cerebellar ataxia in children.Children with cerebellar ataxia should be tested for TgAb and TPOAb to detect Hashimoto's encephalopathy, avoiding missed diagnosis and treatment delays; IVIG and intensive steroid therapy is effective, and immunosuppressive therapy for patients with multiple relapses could reduce the recurrence.
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Affiliation(s)
- Y T Liao
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - W X Chen
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - C Hou
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - H X Zhu
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - L F Chen
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - Y R Zeng
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - W X Wu
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - H C Liang
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - X J Li
- Department of Pediatric Neurology, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
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21
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Liu J, Liao JW, Li W, Chen XJ, Feng JX, Yao L, Huang PH, Su ZH, Lu H, Liao YT, Li SL, Ma YJ. Assessment of Osteoporosis in Lumbar Spine: In Vivo Quantitative MR Imaging of Collagen Bound Water in Trabecular Bone. Front Endocrinol (Lausanne) 2022; 13:801930. [PMID: 35250862 PMCID: PMC8888676 DOI: 10.3389/fendo.2022.801930] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 01/21/2022] [Indexed: 11/17/2022] Open
Abstract
AIM Bone collagen matrix makes a crucial contribution to the mechanical properties of bone by imparting tensile strength and elasticity. The collagen content of bone is accessible via quantification of collagen bound water (CBW) indirectly. We prospectively study the performance of the CBW proton density (CBWPD) measured by a 3D short repetition time adiabatic inversion recovery prepared ultrashort echo time (STAIR-UTE) magnetic resonance imaging (MRI) sequence in the diagnosis of osteoporosis in human lumbar spine. METHODS A total of 189 participants with a mean age of 56 (ranged from 50 to 86) years old were underwent MRI, quantitative computed tomography (QCT), and dual-energy X-ray absorptiometry (DXA) in lumbar spine. Major fracture risk was also evaluated for all participants using Fracture Risk Assessment Tool (FRAX). Lumbar CBWPD, bone marrow fat fraction (BMFF), bone mineral density (BMD) and T score values were calculated in three vertebrae (L2-L4) for each subject. Both the CBWPD and BMFF were correlated with BMD, T score, and FRAX score for comparison. The abilities of the CBWPD and BMFF to discriminate between three different cohorts, which included normal subjects, patients with osteopenia, and patients with osteoporosis, were also evaluated and compared using receiver operator characteristic (ROC) analysis. RESULTS The CBWPD showed strong correlation with standard BMD (R2 = 0.75, P < 0.001) and T score (R2 = 0.59, P < 0.001), as well as a moderate correlation with FRAX score (R2 = 0.48, P < 0.001). High area under the curve (AUC) values (≥ 0.84 using QCT as reference; ≥ 0.76 using DXA as reference) obtained from ROC analysis demonstrated that the CBWPD was capable of well differentiating between the three different subject cohorts. Moreover, the CBWPD had better correlations with BMD, T score, and FRAX score than BMFF, and also performed better in cohort discrimination. CONCLUSION The STAIR-UTE-measured CBWPD is a promising biomarker in the assessment of bone quality and fracture risk.
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Affiliation(s)
- Jin Liu
- Department of Radiology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Jian-Wei Liao
- Department of Radiology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Wei Li
- Department of Radiology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Xiao-Jun Chen
- Department of Radiology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Jia-Xin Feng
- Department of Radiology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Lin Yao
- Department of Radiology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Pan-Hui Huang
- Department of Radiology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Zhi-Hai Su
- Department of Spinal Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Hai Lu
- Department of Spinal Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | | | - Shao-Lin Li
- Department of Radiology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
- *Correspondence: Shao-Lin Li,
| | - Ya-Jun Ma
- Department of Radiology, University of California San Diego, La Jolla, CA, United States
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22
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Guan XY, Liao YT, He L, Meng HX, Li P. [A cross-sectional study of periodontal pathogens in saliva of edentulous patients]. Zhonghua Kou Qiang Yi Xue Za Zhi 2021; 56:1230-1236. [PMID: 34915658 DOI: 10.3760/cma.j.cn112144-20210305-00102] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the prevalence of five specific periodontal pathogens in the saliva of edentulous patients and to compare the differences in the saliva of dentulous individuals with various periodontal conditions. Methods: All the subjects were patients who received regular care at the Beijing Hypertension Prevention and Management Institute. Twenty-seven edentulous patients (edentulous group) were included. According to age (age gap≤5 years), gender, smoking status, diabetes status and hypertension status, each edentulous patient was paired with dentulous individuals suffering from various severity of periodontitis in the same cohort. Then, we selected 3 groups of patients (n=27 in each group) with no or mild periodontitis (mild group), moderate periodontitis (moderate group) and severe periodontitis (severe group). The whole unstimulated saliva was collected before the periodontal examination. Questionnaire survey and periodontal parameters, including plaque index (PLI), probing depth (PD), bleeding index (BI) and clinical attachment loss (CAL), were examined at mesial-buccal and distal-lingual sites of each tooth respectively. DNA was extracted from each sample of the salivary deposition. Porphyromonas gingivalis (Pg), Tannerella forsythia (Tf), Treponema denticola (Td), Campylobacter rectus (Cr) and Prevotella nigrescens (Pn) were detected by using PCR method based on 16SrRNA. The prevalence and quantity of the pathogens under various severity of periodontitis were compared. Results: One or more periodontal pathogens could be detected from the 78% (21/27) of the salivary samples in edentulous group. Thereinto, the prevalences of the five periodontal pathogens were ranked as (from high to low): Cr [56% (15/27)], Tf [44% (12/27)], Pn [26% (7/27)], Pg [22% (6/27)] and Td [11% (3/27)]. All five pathogens' prevalences and Pg, Tf, Td and Pn's quantities showed statistical differences among the four groups. The numbers of detected bacterial species in the mild, moderate and severe groups were significantly higher than that in the edentulous group (P<0.01). Furthermore, the prevalences of the red complex in three dentulous groups [96% (26/27) in each group] were significantly higher than the edentulous group [48% (13/27)] (P<0.05). The proportions of the red complex among all five pathogens (83%) in moderate and severe groups were significantly higher than that in the edentulous group (37%) (P<0.01). Conclusions: All five periodontal pathogens could be detected in most of the saliva samples from edentulous individuals. Nevertheless, the prevalence and quantity were lower than dentulous individuals.
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Affiliation(s)
- X Y Guan
- Department of Periodontology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y T Liao
- Department of Periodontology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - L He
- Department of Periodontology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - H X Meng
- Department of Periodontology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - P Li
- Department of Periodontology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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23
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Wu SH, Liao YT, Huang CH, Chen YC, Chiang ER, Wang JP. Comparison of the Confluence-Initiated Neurogenic Differentiation Tendency of Adipose-Derived and Bone Marrow-Derived Mesenchymal Stem Cells. Biomedicines 2021; 9:biomedicines9111503. [PMID: 34829732 PMCID: PMC8615071 DOI: 10.3390/biomedicines9111503] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 10/18/2021] [Accepted: 10/18/2021] [Indexed: 12/27/2022] Open
Abstract
Adipose-derived mesenchymal stem cells (ADSCs), which tended to neurogenically differentiate spontaneously after achieving high confluence, were observed. Human ADSCs reaching 80% confluence were cultured in DMEM without an inducing factor for 24 h and then maintained in DMEM plus 1% FBS medium for 7 days. The neurogenic, adipogenic, and osteogenic genes of the factor-induced and confluence-initiated differentiation of the ADSCs and bone marrow-derived mesenchymal stem cells (BMSCs) at passages 3 to 5 were determined and compared using RT-qPCR, and the neurogenic differentiation was confirmed using immunofluorescent staining. In vitro tests revealed that the RNA and protein expression of neuronal markers, including class III β-tubulin (TUBB3), microtubule-associated protein 2 (MAP2), neurofilament medium polypeptide (NEFM), neurofilament heavy polypeptide (NEFH), and neurofilament light polypeptide (NEFL), had been enhanced in the confluence-initiated differentiation of the ADSCs. In addition, the expressions of neurotrophins, such as the nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), and glial cell-derived neurotrophic factor (GDNF), were also elevated in the confluence-initiated differentiation of the ADSCs. However, the confluent ADSCs did not show a tendency toward spontaneous adipogenic and osteogenic differentiation. Moreover, compared with the confluent ADSCs, the tendency of spontaneous neurogenic, adipogenic, and osteogenic differentiation of the confluent human bone marrow mesenchymal stem cells (BMSCs) was not observed. The results indicated that ADSCs had the potential to spontaneously differentiate into neuron-like cells during the confluent culture period; however, this tendency was not observed in BMSCs.
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Affiliation(s)
- Szu-Hsien Wu
- Department of Surgery, Taipei Veterans General Hospital, Taipei 112, Taiwan; (S.-H.W.); (C.-H.H.)
- Department of Surgery, School of Medicine, National Yang Ming Chiao Tung University, Taipei 112, Taiwan;
- Division of Plastic and Reconstructive Surgery, Department of Surgery, School of Medicine, National Defense Medical Center, Taipei 112, Taiwan
| | - Yu-Ting Liao
- Department of Orthopaedics & Traumatology, Taipei Veterans General Hospital, Taipei 112, Taiwan;
| | - Chi-Han Huang
- Department of Surgery, Taipei Veterans General Hospital, Taipei 112, Taiwan; (S.-H.W.); (C.-H.H.)
| | - Yi-Chou Chen
- Department of Orthopedics, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan 330, Taiwan;
| | - En-Rung Chiang
- Department of Surgery, School of Medicine, National Yang Ming Chiao Tung University, Taipei 112, Taiwan;
- Department of Orthopaedics & Traumatology, Taipei Veterans General Hospital, Taipei 112, Taiwan;
| | - Jung-Pan Wang
- Department of Surgery, School of Medicine, National Yang Ming Chiao Tung University, Taipei 112, Taiwan;
- Department of Orthopaedics & Traumatology, Taipei Veterans General Hospital, Taipei 112, Taiwan;
- Correspondence: ; Tel.: +886-2-2875-7557; Fax: +886-2-2875-7657
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Liao YT, Tsai HP, Wang SM, Chen SH. Clinical and Immune Responses of Peripheral Chemical Sympathectomy in Enterovirus 71 Infection. Front Immunol 2021; 12:700903. [PMID: 34566960 PMCID: PMC8458799 DOI: 10.3389/fimmu.2021.700903] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 08/25/2021] [Indexed: 11/25/2022] Open
Abstract
The activation of the sympathetic nervous system, release of norepinephrine (NE), and adrenergic receptor signaling participate in and regulate the complicated enterovirus 71 (EV71) brainstem encephalitis (BE). The neurotoxin 6-hydroxydopamine (6-OHDA) selectively ablates sympathetic nerves and markedly depletes NE in innervated organs. Changes in the plasma levels of NE, severity score, cytokine profiles, and percentages of immunophenotype expression in 7-day-old Bltw : CD1 (ICR) mice infected with EV71, with or without 6-OHDA treatment, were compared. The survival rate (76.9%) of EV71-infected and 6-OHDA (30 μg/g)-treated mice was increased significantly. The clinical scores were decreased markedly on days 8-12 in MP4-infected and 6-OHDA-treated mice compared to those without treatment. The results showed that the plasma levels of NE, epinephrine, and dopamine were decreased on days 4–8 after 6-OHDA treatment and at most on day 8. The plasma levels of interleukin (IL)-12p70, tumor necrosis factor, IL-6, and IL-10 did not change significantly after 6-OHDA treatment. Interferon-γ levels decreased evidently on days 4, 6, and 8 after 6-OHDA treatment. The absolute events of CD3+CD4+, CD3+CD8+, and CD3+NK1.1+ cells of peripheral blood mononuclear cells were increased significantly in MP4-infected and 6-OHDA-treated mice compared to those without treatment. In splenocytes, the absolute cells of CD3−NK1.1+, CD3+NK1.1+ and CD11b+Gr-1+ cells of EV71-infected mice were increased significantly after 6-OHDA treatment. These findings suggested that 6-OHDA may be used a probe to explore clinical improvements and immune responses in the complicated EV71 infection. Taken together, peripheral chemical sympathectomy contribute to further understand the immunopathogenesis of EV71 BE with autonomic nervous system dysregulation.
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Affiliation(s)
- Yu-Ting Liao
- Department of Pediatrics, College of Medicine, National Cheng Kung University and Hospital, Tainan, Taiwan
| | - Huey-Pin Tsai
- Department of Pathology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Shih-Min Wang
- Department of Pediatrics, College of Medicine, National Cheng Kung University and Hospital, Tainan, Taiwan.,Center of Infectious Disease and Signaling Research, National Cheng Kung University, Tainan, Taiwan
| | - Shun-Hua Chen
- Center of Infectious Disease and Signaling Research, National Cheng Kung University, Tainan, Taiwan.,Department of Microbiology & Immunology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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25
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Wu SH, Liao YT, Hsueh KK, Huang HK, Chen TM, Chiang ER, Hsu SH, Tseng TC, Wang JP. Adipose-Derived Mesenchymal Stem Cells From a Hypoxic Culture Improve Neuronal Differentiation and Nerve Repair. Front Cell Dev Biol 2021; 9:658099. [PMID: 33996818 PMCID: PMC8120285 DOI: 10.3389/fcell.2021.658099] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 04/09/2021] [Indexed: 01/09/2023] Open
Abstract
Hypoxic expansion has been demonstrated to enhance in vitro neuronal differentiation of bone-marrow derived mesenchymal stem cells (BMSCs). Whether adipose-derived mesenchymal stem cells (ADSCs) increase their neuronal differentiation potential following hypoxic expansion has been examined in the study. Real-time quantitative reverse transcription-polymerase chain reaction and immunofluorescence staining were employed to detect the expression of neuronal markers and compare the differentiation efficiency of hypoxic and normoxic ADSCs. A sciatic nerve injury animal model was used to analyze the gastrocnemius muscle weights as the outcomes of hypoxic and normoxic ADSC treatments, and sections of the regenerated nerve fibers taken from the conduits were analyzed by histological staining and immunohistochemical staining. Comparisons of the treatment effects of ADSCs and BMSCs following hypoxic expansion were also conducted in vitro and in vivo. Hypoxic expansion prior to the differentiation procedure promoted the expression of the neuronal markers in ADSC differentiated neuron-like cells. Moreover, the conduit connecting the sciatic nerve gap injected with hypoxic ADSCs showed the highest recovery rate of the gastrocnemius muscle weights in the animal model, suggesting a conceivable treatment for hypoxic ADSCs. The percentages of the regenerated myelinated fibers from the hypoxic ADSCs detected by toluidine blue staining and myelin basic protein (MBP) immunostaining were higher than those of the normoxic ones. On the other hand, hypoxic expansion increased the neuronal differentiation potential of ADSCs compared with that of the hypoxic BMSCs in vitro. The outcomes of animals treated with hypoxic ADSCs and hypoxic BMSCs showed similar results, confirming that hypoxic expansion enhances the neuronal differentiation potential of ADSCs in vitro and improves in vivo therapeutic potential.
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Affiliation(s)
- Szu-Hsien Wu
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Surgery, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yu-Ting Liao
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Kuang-Kai Hsueh
- Department of Orthopedics, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan
| | - Hui-Kuang Huang
- Department of Surgery, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Orthopaedics, Ditmanson Medical Foundation, Chiayi Christian Hospital, Chiayi, Taiwan.,Department of Food Nutrition, Chung Hwa University of Medical Technology, Tainan, Taiwan
| | - Tung-Ming Chen
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan.,Division of Orthopedics, Taipei City Hospital-Zhong Xiao Branch, Taipei, Taiwan
| | - En-Rung Chiang
- Department of Surgery, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shan-Hui Hsu
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan
| | - Ting-Chen Tseng
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan
| | - Jung-Pan Wang
- Department of Surgery, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan
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Wang JP, Liao YT, Wu SH, Huang HK, Chou PH, Chiang ER. Adipose Derived Mesenchymal Stem Cells from a Hypoxic Culture Reduce Cartilage Damage. Stem Cell Rev Rep 2021; 17:1796-1809. [PMID: 33893621 DOI: 10.1007/s12015-021-10169-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/13/2021] [Indexed: 12/26/2022]
Abstract
The method to benifit tissue engineering of adipose-derived stem cells (ADSCs) to cartilage has been an objective of intense research in treating increasing cartilage-related disease. In this study, whether hypoxic expansion would enhance the proliferation and in vitro chondrogenic differentiation of ADSCs was studied, and then hypoxic expansion was applied to reduce cartilage damage in a rat model in vivo. Hypoxic expansion increased the proliferation and decreased the expression of aging-related genes, including p16, p21, and p53, of human ADSCs in comparison with normoxic expansion. In addition, the γH2AX expression was reduced in the hypoxic ADSCs. The chondrogenic markers were enhanced in the hypoxic ADSC differentiated chondrogenic pellets, including SOX9 on day 7 and gene expressions of COL 2 and COL 10 on day 21. To determine the in vitro chondrogenic differentiation potential of ADSCs, ADSC differentiated 21-day chondrogenic pellets were stained by Alcian blue staining and the immunostaining of COL 2 and COL 10, the results of which confirmed the enhancement of differentiation potential after the hypoxic expansion. Moreover, cartilage injury in a rat model was reduced by hypoxic ADSC treatment that was determined by histological and immunohistochemical staining detections. The effects of hypoxic expansion of ADSCs and bone marrow-derived stem cells (BMSCs) on chondrogenic differentiation potential were also compared. Smaller sizes were presented in the in vitro hypoxic BMSC differentiated chondrogenic pellets, whereas the chondrogenic marker expressions were significantly higher than those of the hypoxic ADSCs. However, there was no significant difference between the treatments of the hypoxic ADSCs and BMSCs in the cartilage injury in vivo. In conclusion, hypoxic expansion increases the chondrogenic differentiation potential of ADSCs and BMSCs in vitro and enhances them to reduce cartilage damage in vivo. Although the hypoxic BMSCs showed compact chondrogenic pellet formation and higher potential of chondrogenesis, the easy access and large resources of ADSCs still uplifted the application.
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Affiliation(s)
- Jung-Pan Wang
- School of Medicine, Department of Surgery, National Yang Ming Chiao Tung University, Taipei, Taiwan. .,Department of Orthopaedics & Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan.
| | - Yu-Ting Liao
- Department of Orthopaedics & Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Szu-Hsien Wu
- School of Medicine, Department of Surgery, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Surgery, Division of Plastic and Reconstructive Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Hui-Kuang Huang
- School of Medicine, Department of Surgery, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Orthopaedics & Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Orthopaedics, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi, Taiwan.,Chung Hwa University of Medical Technology, Tainan, Taiwan
| | - Po-Hsin Chou
- Department of Orthopaedics & Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - En-Rung Chiang
- School of Medicine, Department of Surgery, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Orthopaedics & Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan
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Ke CL, Liao YT, Lin CH. MSS2 maintains mitochondrial function and is required for chitosan resistance, invasive growth, biofilm formation and virulence in Candida albicans. Virulence 2021; 12:281-297. [PMID: 33427576 PMCID: PMC7808435 DOI: 10.1080/21505594.2020.1870082] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Candida albicans is the most prevalent fungal pathogen in humans, particularly in immunocompromised patients. In this study, by screening a C. albicans mutant library, we first identified that the MSS2 gene, an ortholog of Saccharomyces cerevisiae MSS2 required for mitochondrial respiration, mediates chitosan resistance. Upon treatment with 0.2% chitosan, the growth of mss2Δ strains was strikingly impaired, and MSS2 expression was significantly repressed by chitosan. Furthermore, mss2Δ strains exhibited slow growth on medium supplemented with glycerol as the sole carbon source. Similar to the chitosan-treated wild-type strain, the mss2Δ strain exhibited a significantly impaired ATP production ability. These data suggest that an antifungal mechanism of chitosan against C. albicans acts by inhibiting MSS2 gene expression, leading to repression of mitochondrial function. Normal respiratory function is suggested to be required for fungal virulence. Interestingly, the mss2Δ mutant strains exhibited significantly impaired invasive ability in vitro and ex vivo but retained normal hyphal development ability in liquid medium. Furthermore, the MSS2 deletion strains could not form robust biofilms and exhibited significantly reduced virulence. Collectively, these results demonstrated that the antifungal effect of chitosan against C. albicans is mediated via inhibition of mitochondrial biogenesis. These data may provide another strategy for antifungal drug development via inhibition of fungal mitochondria.
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Affiliation(s)
- Cai-Ling Ke
- Department of Biochemical Science and Technology, College of Life Science, National Taiwan University , Taipei, Taiwan
| | - Yu-Ting Liao
- Department of Biochemical Science and Technology, College of Life Science, National Taiwan University , Taipei, Taiwan
| | - Ching-Hsuan Lin
- Department of Biochemical Science and Technology, College of Life Science, National Taiwan University , Taipei, Taiwan
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Xia J, Xie SY, Liu KQ, Xu L, Zhao PP, Gai SR, Guan PL, Zhao JQ, Zhu YP, Tsoi LC, Stuart PE, Nair RP, Yang HQ, Liao YT, Mao K, Qiu MC, Ying ZM, Hu B, Yang ZH, Bai WY, Zhu XW, Cong PK, Elder JT, Ye ZM, Wang B, Zheng HF. Systemic evaluation of the relationship between psoriasis, psoriatic arthritis and osteoporosis: observational and Mendelian randomisation study. Ann Rheum Dis 2020; 79:1460-1467. [PMID: 32737104 PMCID: PMC7970448 DOI: 10.1136/annrheumdis-2020-217892] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [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: 05/06/2020] [Revised: 06/28/2020] [Accepted: 06/29/2020] [Indexed: 02/03/2023]
Abstract
OBJECTIVES AND METHODS With 432 513 samples from UK Biobank dataset, multivariable linear/logistic regression were used to estimate the relationship between psoriasis/psoriatic arthritis (PsA) and estimated bone mineral density (eBMD)/osteoporosis, controlling for potential confounders. Here, confounders were set in three ways: model0 (including age, height, weight, smoking and drinking), model1 (model0 +regular physical activity) and model2 (model1 +medication treatments). The eBMD was derived from heel ultrasound measurement. And 4904 patients with psoriasis and 847 patients with PsA were included in final analysis. Mendelian randomisation (MR) approach was used to evaluate the causal effect between them. RESULTS Lower eBMD were observed in patients with PsA than in controls in both model0 (β-coefficient=-0.014, p=0.0006) and model1 (β-coefficient=-0.013, p=0.002); however, the association disappeared when conditioning on treatment with methotrexate or ciclosporin (model2) (β-coefficient=-0.005, p=0.28), mediation analysis showed that 63% of the intermediary effect on eBMD was mediated by medication treatment (p<2E-16). Patients with psoriasis without arthritis showed no difference of eBMD compared with controls. Similarly, the significance of higher risk of osteopenia in patients with PsA (OR=1.27, p=0.002 in model0) could be eliminated by conditioning on medication treatment (p=0.244 in model2). Psoriasis without arthritis was not related to osteopenia and osteoporosis. The weighted Genetic Risk Score analysis found that genetically determined psoriasis/PsA were not associated with eBMD (p=0.24 and p=0.88). Finally, MR analysis showed that psoriasis/PsA had no causal effect on eBMD, osteoporosis and fracture. CONCLUSIONS The effect of PsA on osteoporosis was secondary (eg, medication) but not causal. Under this hypothesis, psoriasis without arthritis was not a risk factor for osteoporosis.
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Affiliation(s)
- Jiangwei Xia
- Diseases & Population (DaP) Geninfo Lab, School of Life Sciences, Westlake University, 18 Shilongshan Road, Hangzhou, Zhejiang, 310024, China,Instituteof Basic Medical Sciences, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou, Zhejiang, 310024, China
| | - Shu-Yang Xie
- Binzhou Medical University, Yantai, Shandong, 264003, China
| | - Ke-Qi Liu
- Jiangxi Medical College, Shangrao, Jiangxi, China
| | - Lin Xu
- Binzhou Medical University, Yantai, Shandong, 264003, China
| | - Pian-Pian Zhao
- Diseases & Population (DaP) Geninfo Lab, School of Life Sciences, Westlake University, 18 Shilongshan Road, Hangzhou, Zhejiang, 310024, China,Instituteof Basic Medical Sciences, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou, Zhejiang, 310024, China
| | - Si-Rui Gai
- Diseases & Population (DaP) Geninfo Lab, School of Life Sciences, Westlake University, 18 Shilongshan Road, Hangzhou, Zhejiang, 310024, China,Instituteof Basic Medical Sciences, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou, Zhejiang, 310024, China
| | - Peng-Lin Guan
- Diseases & Population (DaP) Geninfo Lab, School of Life Sciences, Westlake University, 18 Shilongshan Road, Hangzhou, Zhejiang, 310024, China,Instituteof Basic Medical Sciences, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou, Zhejiang, 310024, China
| | - Jin-Qiu Zhao
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yan-Ping Zhu
- Binzhou Medical University, Yantai, Shandong, 264003, China
| | - Lam C. Tsoi
- Department of Dermatology, University of Michigan, Ann Arbor, Michigan, United States,Department of Biostatistics, Center for Statistical Genetics, University of Michigan, Ann Arbor, Michigan, United States
| | - Philip E. Stuart
- Department of Dermatology, University of Michigan, Ann Arbor, Michigan, United States,Department of Biostatistics, Center for Statistical Genetics, University of Michigan, Ann Arbor, Michigan, United States
| | - Rajan P. Nair
- Department of Dermatology, University of Michigan, Ann Arbor, Michigan, United States,Department of Biostatistics, Center for Statistical Genetics, University of Michigan, Ann Arbor, Michigan, United States
| | - Han-Qi Yang
- School of Public Health, Boston University, Boston, Massachusetts, 02118, United States
| | - Yu-Ting Liao
- School of Public Health and Management, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Kaijing Mao
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom
| | - Mo-Chang Qiu
- Jiangxi Medical College, Shangrao, Jiangxi, China
| | - Zhi-Min Ying
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Bin Hu
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Zhi-Hua Yang
- Department of Orthopedic Surgery, Zhejiang Xiaoshan hospital, Hangzhou, Zhejiang, China
| | - Wei-Yang Bai
- Diseases & Population (DaP) Geninfo Lab, School of Life Sciences, Westlake University, 18 Shilongshan Road, Hangzhou, Zhejiang, 310024, China,Instituteof Basic Medical Sciences, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou, Zhejiang, 310024, China
| | - Xiao-Wei Zhu
- Diseases & Population (DaP) Geninfo Lab, School of Life Sciences, Westlake University, 18 Shilongshan Road, Hangzhou, Zhejiang, 310024, China,Instituteof Basic Medical Sciences, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou, Zhejiang, 310024, China
| | - Pei-Kuan Cong
- Diseases & Population (DaP) Geninfo Lab, School of Life Sciences, Westlake University, 18 Shilongshan Road, Hangzhou, Zhejiang, 310024, China,Instituteof Basic Medical Sciences, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou, Zhejiang, 310024, China
| | - James T. Elder
- Department of Dermatology, University of Michigan, Ann Arbor, Michigan, United States,Ann Arbor Veterans Affairs Hospital, Ann Arbor, Michigan, United States
| | - Zhao-Ming Ye
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Bin Wang
- Binzhou Medical University, Yantai, Shandong, 264003, China
| | - Hou-Feng Zheng
- Diseases & Population (DaP) Geninfo Lab, School of Life Sciences, Westlake University, 18 Shilongshan Road, Hangzhou, Zhejiang, 310024, China,Instituteof Basic Medical Sciences, Westlake Institute for Advanced Study, 18 Shilongshan Road, Hangzhou, Zhejiang, 310024, China
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Shi L, Han X, Li JX, Liao YT, Kou FS, Wang ZB, Shi R, Zhao XJ, Sun ZM, Hao Y. Identification of differentially expressed genes in ulcerative colitis and verification in a colitis mouse model by bioinformatics analyses. World J Gastroenterol 2020; 26:5983-5996. [PMID: 33132649 PMCID: PMC7584051 DOI: 10.3748/wjg.v26.i39.5983] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 08/30/2020] [Accepted: 09/15/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Ulcerative colitis (UC) is an inflammatory bowel disease that is difficult to diagnose and treat. To date, the degree of inflammation in patients with UC has mainly been determined by measuring the levels of nonspecific indicators, such as C-reactive protein and the erythrocyte sedimentation rate, but these indicators have an unsatisfactory specificity. In this study, we performed bioinformatics analysis using data from the National Center for Biotechnology Information-Gene Expression Omnibus (NCBI-GEO) databases and verified the selected core genes in a mouse model of dextran sulfate sodium (DSS)-induced colitis.
AIM To identify UC-related differentially expressed genes (DEGs) using a bioinformatics analysis and verify them in vivo and to identify novel biomarkers and the underlying mechanisms of UC.
METHODS Two microarray datasets from the NCBI-GEO database were used, and DEGs between patients with UC and healthy controls were analyzed using GEO2R and Venn diagrams. We annotated these genes based on their functions and signaling pathways, and then protein-protein interactions (PPIs) were identified using the Search Tool for the Retrieval of Interacting Genes. The data were further analyzed with Cytoscape software and the Molecular Complex Detection (MCODE) app. The core genes were selected and a Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis was performed. Finally, colitis model mice were established by administering DSS, and the top three core genes were verified in colitis mice using real-time polymerase chain reaction (PCR).
RESULTS One hundred and seventy-seven DEGs, 118 upregulated and 59 downregulated, were initially identified from the GEO2R analysis and predominantly participated in inflammation-related pathways. Seven clusters with close interactions in UC formed: Seventeen core genes were upregulated [C-X-C motif chemokine ligand 13 (CXCL13), C-X-C motif chemokine receptor 2 (CXCR2), CXCL9, CXCL5, C-C motif chemokine ligand 18, interleukin 1 beta, matrix metallopeptidase 9, CXCL3, formyl peptide receptor 1, complement component 3, CXCL8, CXCL1, CXCL10, CXCL2, CXCL6, CXCL11 and hydroxycarboxylic acid receptor 3] and one was downregulated [neuropeptide Y receptor Y1 (NYP1R)] in the top cluster according to the PPI and MCODE analyses. These genes were substantially enriched in the cytokine-cytokine receptor interaction and chemokine signaling pathways. The top three core genes (CXCL13, NYP1R, and CXCR2) were selected and verified in a mouse model of colitis using real-time PCR Increased expression was observed compared with the control mice, but only CXCR2 expression was significantly different.
CONCLUSION Core DEGs identified in UC are related to inflammation and immunity inflammation, indicating that these reactions are core features of the pathogenesis of UC. CXCR2 may reflect the degree of inflammation in patients with UC.
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Affiliation(s)
- Lei Shi
- Department of Immunology and Microbiology, School of Life Sciences, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Xiao Han
- Gastroenterology Department, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Jun-Xiang Li
- Gastroenterology Department, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Yu-Ting Liao
- Department of Internal Medicine, Beijing Social Welfare Hospital, Beijing 100085, China
| | - Fu-Shun Kou
- Gastroenterology Department, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Zhi-Bin Wang
- Gastroenterology Department, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Rui Shi
- Gastroenterology Department, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Xing-Jie Zhao
- Gastroenterology Department, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Zhong-Mei Sun
- Gastroenterology Department, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Yu Hao
- Department of Immunology and Microbiology, School of Life Sciences, Beijing University of Chinese Medicine, Beijing 100029, China
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30
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Wang JP, Liao YT, Wu SH, Chiang ER, Hsu SH, Tseng TC, Hung SC. Mesenchymal stem cells from a hypoxic culture improve nerve regeneration. J Tissue Eng Regen Med 2020; 14:1804-1814. [PMID: 32976700 DOI: 10.1002/term.3136] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 08/27/2020] [Accepted: 09/10/2020] [Indexed: 12/31/2022]
Abstract
Repairing the peripheral nerves following a segmental defect injury remains surgically challenging. Because of some disadvantages of nerve grafts, nerve regeneration, such as conduits combined with bone marrow-derived mesenchymal stem cells (BMSCs), may serve as an alternative. BMSCs expand under hypoxic conditions, decrease in senescence, and increase in proliferation and differentiation potential into the bone, fat, and cartilage. The purpose of this study was to investigate whether BMSCs increased the neuronal differentiation potential following expansion under hypoxic conditions. Isolated human BMSCs (hBMSCs) expand under hypoxia or normoxia, and neuronal differentiation proceeds under normoxia. in vitro tests revealed hypoxia culture enhanced the RNA and protein expression of neuronal markers. The electrophysiology of hBMSC-differentiated neuron-like cells was also enhanced by the hypoxia culturing. Our animal model indicated that the potential treatment of hypoxic rat BMSCs (rBMSCs) was better than that of normoxic rBMSCs because the conduit with the hypoxic rBMSCs injection demonstrated the highest recovery rate of gastrocnemius muscle weights. There were more toluidine blue-stained myelinated nerve fibers in the hypoxic rBMSCs group than in the normoxic group. To sum up, BMSCs cultured under hypoxia increased the potential of neuronal differentiation both in vivo and in vitro.
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Affiliation(s)
- Jung-Pan Wang
- Department of Surgery, School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yu-Ting Liao
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Szu-Hsien Wu
- Department of Surgery, School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Division of Plastic and Reconstructive Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
| | - En-Rung Chiang
- Department of Surgery, School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shan-Hui Hsu
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan
| | - Ting-Chen Tseng
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan
| | - Shih-Chieh Hung
- Graduate Institute of New Drug Development, Biomedical Sciences, China Medical University, Taichung, Taiwan
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31
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Shen CF, Ho TS, Wang SM, Liao YT, Hu YS, Tsai HP, Chen SH. The cellular immunophenotype expression of influenza A virus and influenza B virus infection in children. Clin Immunol 2020; 219:108548. [PMID: 32735869 DOI: 10.1016/j.clim.2020.108548] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 07/13/2020] [Accepted: 07/24/2020] [Indexed: 11/25/2022]
Abstract
BACKGROUND The innate immune response is the primary defense against influenza virus infection. METHODS This is a prospective study carried out in children <18 years of age who were diagnosed with influenza A or influenza B infection. Demographic and clinical data, laboratory findings and cell immunophenotypes on first presentation were compared. RESULTS With respect to immunophenotype, influenza A infection resulted in a higher fraction of CD14+ and CD4+IL-17A+cells compared to children infected with influenza B. By contrast, influenza B infection resulted in a comparatively higher percentage of double-negative CD4-CD8- lymphocyte subsets. Influenza A infection was associated with comparatively higher percentages of CD4+CD25highFoxp3+ and CD4+CD25lowFoxp3+ cells. By contrast, the percentage of CD8+CD25high and CD8+CD25low cells was similar among patients with influenza A infection and influenza B infection. CONCLUSIONS An improved understanding of the fraction of regulatory T cells with influenza virus infections may provide further understandings on immune responses.
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Affiliation(s)
- Ching-Fen Shen
- Department of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan City, Taiwan
| | - Tzong-Shiann Ho
- Department of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan City, Taiwan; Center of Infectious Disease and Signaling Research, National Cheng Kung University, Tainan City, Taiwan
| | - Shih-Min Wang
- Department of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan City, Taiwan; Center of Infectious Disease and Signaling Research, National Cheng Kung University, Tainan City, Taiwan.
| | - Yu-Ting Liao
- Department of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan City, Taiwan; Center of Infectious Disease and Signaling Research, National Cheng Kung University, Tainan City, Taiwan
| | - Yu-Shiang Hu
- Department of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan City, Taiwan; Center of Infectious Disease and Signaling Research, National Cheng Kung University, Tainan City, Taiwan
| | - Huey-Pin Tsai
- Department of Pathology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan City, Taiwan; Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan City, Taiwan
| | - Shun-Hua Chen
- Center of Infectious Disease and Signaling Research, National Cheng Kung University, Tainan City, Taiwan; Department of Microbiology & Immunology, College of Medicine, National Cheng Kung University, Tainan City, Taiwan.
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32
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Han JL, Liao YT, Chang CH. Asymmetric Organocatalytic Conjugate Addition of Electron-Rich Phenols and 1,3-Dicarbonyls to Arylsulfonyl Indoles in an Oil-Water Biphasic System. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900962] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jeng-Liang Han
- Department of Chemistry; National Chung Hsing University; 145 Xingda Rd., South Dist., Taichung City 402 Taiwan R.O.C
| | - Yu-Ting Liao
- Department of Chemistry; Chung Yuan Christian University; Taiwan R.O.C
| | - Chia-Hao Chang
- Department of Chemistry; Chung Yuan Christian University; Taiwan R.O.C
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33
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Shih PY, Liao YT, Tseng YK, Deng FS, Lin CH. A Potential Antifungal Effect of Chitosan Against Candida albicans Is Mediated via the Inhibition of SAGA Complex Component Expression and the Subsequent Alteration of Cell Surface Integrity. Front Microbiol 2019; 10:602. [PMID: 30972050 PMCID: PMC6443709 DOI: 10.3389/fmicb.2019.00602] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 03/11/2019] [Indexed: 12/21/2022] Open
Abstract
Due to the high incidence of nosocomial Candida albicans infection, the first-line drugs for C. albicans infection have been heavily used, and the emergence of drug-resistant strains has gradually increased. Thus, a new antifungal drug or therapeutic method is needed. Chitosan, a product of chitin deacetylation, is considered to be potentially therapeutic for fungal infections because of its excellent biocompatibility, biodegradability and low toxicity. The biocidal action of chitosan against C. albicans shows great commercial potential, but the exact mechanisms underlying its antimicrobial activity are unclear. To reveal these mechanisms, mutant library screening was performed. ADA2 gene, which encodes a histone acetylation coactivator in the SAGA complex, was identified. Transmission electronic microscopy images showed that the surface of chitosan-treated ada2Δ cells was substantially disrupted and displayed an irregular morphology. Interestingly, the cell wall of ada2Δ cells was significantly thinner than that of wild-type cells, with a thickness similar to that seen in the chitosan-treated wild-type strain. Although ADA2 is required for chitosan tolerance, expression of ADA2 and several Ada2-mediated cell wall-related genes (ALS2, PGA45, and ACE2) and efflux transporter genes (MDR1 and CDR1) were significantly inhibited by chitosan. Furthermore, GCN5 encoding a SAGA complex catalytic subunit was inhibited by chitosan, and gcn5Δ cells exhibited phenotypes comparable to those of ada2Δ cells in response to chitosan and other cell surface-disrupting agents. This study demonstrated that a potential antifungal mechanism of chitosan against C. albicans operates by inhibiting SAGA complex gene expression, which decreases the protection of the cell surface against chitosan.
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Affiliation(s)
- Pei-Yu Shih
- Department of Biochemical Science and Technology, College of Life Science, National Taiwan University, Taipei, Taiwan
| | - Yu-Ting Liao
- Department of Biochemical Science and Technology, College of Life Science, National Taiwan University, Taipei, Taiwan
| | - Yi-Kai Tseng
- Department of Biochemical Science and Technology, College of Life Science, National Taiwan University, Taipei, Taiwan
| | - Fu-Sheng Deng
- Department of Biochemical Science and Technology, College of Life Science, National Taiwan University, Taipei, Taiwan
| | - Ching-Hsuan Lin
- Department of Biochemical Science and Technology, College of Life Science, National Taiwan University, Taipei, Taiwan
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34
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Jin DSS, Liao YT, He L, Meng HX, Li P. [Study on periodontal status of patients with pre-diabetes]. Zhonghua Kou Qiang Yi Xue Za Zhi 2019; 54:157-163. [PMID: 30856692 DOI: 10.3760/cma.j.issn.1002-0098.2019.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate periodontal status of patients with pre-diabetes and evaluate the prevalence of periodontal pathogens in oral cavity. Methods: All the subjects were under regular care in urban area of Beijing, including 88 subjects with normal blood glucose (normal blood glucose group), 27 pre-diabetic patients (pre-diabetic group), 58 well-controlled diabetic patients (glucose well controlled group) and 72 poor-controlled diabetic patients (glucose poor controlled group). Whole unstimulated saliva samples were collected before periodontal examination. Periodontal parameters, including plaque index (PLI), probing depth (PD), bleeding index (BI), bleeding on probing (BOP) and clinical attachment loss (CAL), were examined at mesial-buccal and distal-lingual sites of each tooth. Number of missing teeth was recorded. DNA was extracted from the salivary deposition, Porphyromonas gingivalis (Pg), Tannerella forsythia (Tf), Treponema denticola (Td), Campylobacter rectus (Cr), and Prevotella nigrescens (Pn) were detected by using PCR method based on 16SrRNA. Periodontal status and prevalence and quantity of the pathogens under various blood glucose states were compared. Results: The PD scores of four groups had no statistical differences. The CAL [(2.29±1.35) mm] and the number of missing teeth[2.0 (7.0)] in pre-diabetic group were significantly lower than that in glucose poor controlled group [(3.07±1.45) mm, P=0.04 and 5.0 (10.0), P=0.04, respectively]. The number of missing teeth in pre-diabetic group [2.0 (7.0)] was significantly lower than that in glucose well controlled group [5.0 (9.0), P=0.02]. The percent of bleeding on probing [BOP(+)%] in pre-diabetic group [(63.89±20.03)%] was significantly higher than that in normal blood glucose group [(54.51±22.29)%, P=0.04] and glucose well controlled group [(53.12±21.77)%, P=0.03]. The prevalence of Pg in pre-diabetic group (81.5%) was significantly higher than that in glucose poor controlled group (54.2%, P=0.02). The prevalence of Tf in pre-diabetic group (96.3%) was significantly higher than that in glucose poor controlled group (76.4%, P=0.01). Meanwhile the quantity of Pg [1.58 (4.75)] and Tf [5.46 (7.77)] in pre-diabetic group were significantly higher than that in glucose poor controlled group [0.60 (1.87), P=0.01 and 1.63 (3.06), P<0.01, respectively]. The quantity of Pn [0.85 (1.68)] in pre-diabetic group was significantly higher than that in normal blood glucose group [0 (1.02), P=0.04]. Conclusions: Pre-diabetic patients showed severe periodontal infection and BOP(+)% than other three groups and had high risk-level of periodontitis.
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Affiliation(s)
- D S S Jin
- Department of Periodontology, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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Liao YT, Liu Y, Jiang Y, Ouyang XY, He L, An N. [A clinical evaluation of periodontal treatment effect using periodontal endoscope for patients with periodontitis: a split-mouth controlled study]. Zhonghua Kou Qiang Yi Xue Za Zhi 2018; 51:722-727. [PMID: 27978912 DOI: 10.3760/cma.j.issn.1002-0098.2016.12.005] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the clinical effects of periodontal treatment using periodontal endoscope with that of conventional treatment method for patients with periodontitis. Methods: Eleven periodontal patients with moderate to advanced periodontal destruction were recruited and treated with scaling and root planing in a split-mouth design randomly with (test group) or without (control group) periodontal endoscope. Changes of such clinical parameters as plaque index (PLI), bleeding index (BI), probing depth (PD) and attachment loss (AL) before and after treatments as well as the difference between test and control groups were examined and compared. Results: Both groups showed significant reductions in PD, BI and AL values at 6 weeks and 3 months after treatment (P <0.001). Only in the test group, for sites with PD≥6 mm at baseline, PD value ([4.0±1.2] mm) and AL value ([3.8±0.9] mm) at the end of 3 months were significantly lower than that at the end of 6 weeks (PD[4.4±1.3] mm, P<0.001; AL[4.1±1.1] mm, P< 0.05). There were no significant differences between two groups at the baseline, at the end of 6 weeks and 3 months, respectively. However, for the sites with PD≥6 mm in anterior teeth, PD value in test group at the end of 3 months was significantly lower than that in control group ([3.2±0.9] mm vs [3.7±0.9] mm, P <0.05), while AL value tend to be lower ([2.9 ± 1.2] mm vs [3.6 ± 1.3] mm, P=0.061). Conclusions: Periodontal treatment using endoscope is obviously effective, especially for the medium and long term prognosis of deep pockets and single rooted teeth.
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Affiliation(s)
- Y T Liao
- Department of General Dentistry II, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y Liu
- Department of General Dentistry II, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y Jiang
- Department of General Dentistry II, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - X Y Ouyang
- Department of Periodontology, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - L He
- Department of Periodontology, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - N An
- Department of General Dentistry II, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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Lee PY, Tsai YJ, Liao YT, Yang YC, Lu FH, Lin SI. Reactive balance control in older adults with diabetes. Gait Posture 2018; 61:67-72. [PMID: 29306146 DOI: 10.1016/j.gaitpost.2017.12.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 12/28/2017] [Accepted: 12/29/2017] [Indexed: 02/02/2023]
Abstract
Diabetes mellitus is a major health problem for older adults worldwide and could be associated with impaired ability to recover balance after postural disturbances. This study compared reactive balance control in three groups of adults, young (YA), healthy non-diabetes older (nonDM-OA) and diabetes older (DM-OA). Twenty participants in each group completed a series of vision, plantar cutaneous sensitivity, grip power and lower limb strength tests. In the reactive balance test, participants stood on a force platform and used the dominant hand to pull the handle of a cord that could be suddenly released to create an imbalancing force. The anteroposterior (AP) and mediolateral (ML) motion of the center of pressure (COP) immediately after the sudden release was calculated to represent the level of imbalance experienced by the participants. Regression analysis entering big toe plantar sensitivity and grip power as independent variable was conducted for COP range for the three groups separately. The results showed that, except for the knee extensor, DM-OA had significantly poorer muscle strength and plantar sensitivity, and greater COP ML motion than YA and nonDM-OA. DM-OA also had significantly greater COP AP motion than YA. Grip power alone and together with plantar sensitivity explained a significant amount of variance in the AP and ML COP motion respectively (r2 = 0.334 and 0.582, respectively) for DM-OA. These findings indicated that diabetes in older adults was associated with declines in reactive balance control, and these changes may be related to muscle weakness and plantar insensitivity.
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Affiliation(s)
- Pei-Yun Lee
- Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Ju Tsai
- Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Ting Liao
- Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Ching Yang
- Department of Family Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Fen-Hwa Lu
- Department of Family Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Sang-I Lin
- Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
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Feng L, Liao YT, He JC, Xie CL, Chen SY, Fan HH, Su ZP, Wang Z. Plasma long non-coding RNA BACE1 as a novel biomarker for diagnosis of Alzheimer disease. BMC Neurol 2018; 18:4. [PMID: 29316899 PMCID: PMC5761117 DOI: 10.1186/s12883-017-1008-x] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Accepted: 12/20/2017] [Indexed: 12/28/2022] Open
Abstract
Backgrounds Long non-coding RNA (LncRNA) have been reported to be involved in the pathogenesis of neurodegenerative diseases, but whether it can serve as a biomarker for Alzheimer disease (AD) is not yet known. Methods The present study selected four specific LncRNA (17A, 51A, BACE1 and BC200) as possible AD biomarker. RT-qPCR was performed to validate the LncRNA. Receiver operating characteristic curve (ROC) and area under the ROC curve (AUC) were applied to study the potential of LncRNA as a biomarker in a population of 88 AD patients and 72 control individuals. Results We found that the plasma LncRNA BACE1 level of AD patients was significantly higher than that of healthy controls (p = 0.006). Plasma level of LncRNA 17A, 51A and BC200 did not show a significant difference between two groups (p = 0.098, p = 0.204 and p = 0.232, respectively). ROC curve analysis showed that LncRNA BACE1 was the best candidate of these LncRNA (95% CI: 0.553–0.781, p = 0.003). In addition, no correlation was found for expression of these LncRNA in both control and AD groups with age or MMSE scale (p > 0.05). Conclusions Our present study compared the plasma level of four LncRNA between AD and non-AD patients, and found that the level of the BACE1 is increased in the plasma of AD patients and have a high specificity (88%) for AD, indicating BACE1 may be a potential candidate biomarker to predict AD. Electronic supplementary material The online version of this article (10.1186/s12883-017-1008-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Liang Feng
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Yu-Ting Liao
- Institute of public health management of Wenzhou Medical University, Wenzhou, Wenzhou, 325000, China
| | - Jin-Cai He
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Cheng-Long Xie
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Si-Yan Chen
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Hui-Hui Fan
- Institute of public health management of Wenzhou Medical University, Wenzhou, Wenzhou, 325000, China
| | - Zhi-Peng Su
- Department of Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China.
| | - Zhen Wang
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China.
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Affiliation(s)
- Takeshi Emura
- Graduate Institute of Statistics, National Central University, Taoyuan City, Taiwan
| | - Yu-Ting Liao
- Graduate Institute of Statistics, National Central University, Taoyuan City, Taiwan
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Lee PY, Lin SI, Liao YT, Lin RM, Hsu CC, Huang KY, Chen YT, Tsai YJ. Postural Responses to a Suddenly Released Pulling Force in Older Adults with Chronic Low Back Pain: An Experimental Study. PLoS One 2016; 11:e0162187. [PMID: 27622646 PMCID: PMC5021337 DOI: 10.1371/journal.pone.0162187] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 08/18/2016] [Indexed: 02/02/2023] Open
Abstract
Chronic low back pain (CLBP), one of the most common musculoskeletal conditions in older adults, might affect balance and functional independence. The purpose of this study was to investigate the postural responses to a suddenly released pulling force in older adults with and without CLBP. Thirty community-dwelling older adults with CLBP and 26 voluntary controls without CLBP were enrolled. Participants were required to stand on a force platform while, with one hand, they pulled a string that was fastened at the other end to a 2-kg or to a 4-kg force in the opposite direction at a random order. The number of times the participants lost their balance and motions of center of pressure (COP) when the string was suddenly released were recorded. The results demonstrated that although the loss of balance rates for each pulling force condition did not differ between groups, older adults with CLBP had poorer postural responses: delayed reaction, larger displacement, higher velocity, longer path length, and greater COP sway area compared to the older controls. Furthermore, both groups showed larger postural responses in the 4-kg pulling force condition. Although aging is generally believed to be associated with declining balance and postural control, these findings highlight the effect of CLBP on reactive balance when responding to an externally generated force in an older population. This study also suggests that, for older adults with CLBP, in addition to treating them for pain and disability, reactive balance evaluation and training, such as reaction and movement strategy training should be included in their interventions. Clinicians and older patients with CLBP need to be made aware of the significance of impaired reactive balance and the increased risk of falls when encountering unexpected perturbations.
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Affiliation(s)
- Pei-Yun Lee
- Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Sang-I Lin
- Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Ting Liao
- Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ruey-Mo Lin
- Department of Orthopedic, Tainan Municipal An-Nan Hospital-China Medical University, Tainan, Taiwan
| | - Che-Chia Hsu
- Department of Orthopedic, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Kuo-Yuan Huang
- Department of Orthopedic, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Yi-Ting Chen
- Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Ju Tsai
- Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- * E-mail:
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Liao YT, Chen TS, Chen TL, Chung YF, Chen YX, Hwang JH, Wang H, Wei W. Access Scheme for Controlling Mobile Agents and its Application to Share Medical Information. J Med Syst 2016; 40:119. [PMID: 27010391 DOI: 10.1007/s10916-016-0470-0] [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: 06/01/2015] [Accepted: 03/07/2016] [Indexed: 11/30/2022]
Abstract
This study is showing the advantage of mobile agents to conquer heterogeneous system environments and contribute to a virtual integrated sharing system. Mobile agents will collect medical information from each medical institution as a method to achieve the medical purpose of data sharing. Besides, this research also provides an access control and key management mechanism by adopting Public key cryptography and Lagrange interpolation. The safety analysis of the system is based on a network attacker's perspective. The achievement of this study tries to improve the medical quality, prevent wasting medical resources and make medical resources access to appropriate configuration.
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Affiliation(s)
- Yu-Ting Liao
- Department of Management Science, National Chiao Tung University, Hsinchu, Taiwan
| | - Tzer-Shyong Chen
- Department of Information Management, Tunghai University, Taichung, Taiwan
| | - Tzer-Long Chen
- Department of Information Networking and System Administration, Lingtung University, Taichung, Taiwan
| | - Yu-Fang Chung
- Department of Electrical Engineering, Tunghai University, Taichung, Taiwan.
| | - Yu- Xin Chen
- Department of Electrical Engineering, Tunghai University, Taichung, Taiwan
| | - Jen-Hung Hwang
- Department of Management Science, National Chiao Tung University, Hsinchu, Taiwan
| | - Huihui Wang
- Department of Engineering, Jacksonville University, University Blvd N, Jacksonville, FL, USA
| | - Wei Wei
- School of Computer and Engineering, Xi'an University of Technology, Xi'an, China
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Yen HW, Liao YT, Liu YX. Cultivation of oleaginous Rhodotorula mucilaginosa in airlift bioreactor by using seawater. J Biosci Bioeng 2016; 121:209-12. [DOI: 10.1016/j.jbiosc.2015.06.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 05/31/2015] [Accepted: 06/16/2015] [Indexed: 11/17/2022]
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Yen HW, Liao YT, Liu YX. The growth of oleaginous Rhodotorula glutinis in an airlift bioreactor on crude glycerol through a non-sterile fermentation process. Bioprocess Biosyst Eng 2015; 38:1541-6. [PMID: 25835228 DOI: 10.1007/s00449-015-1396-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2015] [Accepted: 03/26/2015] [Indexed: 10/23/2022]
Abstract
While the use of oleaginous Rhodotorula glutinis as a feedstock for biodiesel production is an attractive idea, as it can avoid the pollutions associated with over-consumption of fossil fuels. Nevertheless, the related costs, including the energy required for sterilization, remain a barrier to commercialization. This study thus used a low-pH non-sterile medium, instead of a completely sterilized one, to grow R. glutinis in a 5-L airlift bioreactor. The results show that R. glutinis can grow well at a low pH level of 4.0 and without sterilization of the medium, producing a final biomass of 11.7 g/L. Nevertheless, such a low pH will lead to fewer total lipids accumulation, and so a two-stage process of pH control in a non-sterile batch was proposed. Even this two-stage pH operation was also able to produce a similar final biomass of 11.7 g/L. However, the batch with two-stage pH control had a far higher lipid content of 55 ± 4% as compared to that of 21 ± 3% in the batch grown at pH 4.0. This study shows the potential of the proposed non-sterile process with two-stage pH control applied to the growth of R. glutinis to enhance the total lipid accumulation.
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Affiliation(s)
- Hong-Wei Yen
- Department of Chemical and Materials Engineering, Tunghai University, 407, Taichung, Taiwan,
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Yang L, Liao YT, Yang XF, Reng LW, Qi H, Li FR. Immune protective effect of human alpha-1-antitrypsin gene during β cell transplantation in diabetic mice. Immunol Res 2015; 62:71-80. [DOI: 10.1007/s12026-015-8636-2] [Citation(s) in RCA: 4] [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] [Indexed: 12/01/2022]
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Wang SM, Chen IC, Liao YT, Liu CC. The clinical correlation of regulatory T cells and cyclic adenosine monophosphate in enterovirus 71 infection. PLoS One 2014; 9:e102025. [PMID: 25010330 PMCID: PMC4092122 DOI: 10.1371/journal.pone.0102025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Accepted: 06/13/2014] [Indexed: 11/23/2022] Open
Abstract
Background Brainstem encephalitis (BE) and pulmonary edema (PE) are notable complications of enterovirus 71 (EV71) infection. Objective This study investigated the immunoregulatory characterizations of EV71 neurological complications by disease severity and milrinone treatment. Study Design Patients <18 years with virologically confirmed EV71 infections were enrolled and divided into 2 groups: the hand, foot, and mouth disease (HFMD) or BE group, and the autonomic nervous system (ANS) dysregulation or PE group. Cytokine and cyclic adenosine monophosphate (cAMP) levels, and the regulatory T cell (Tregs) profiles of the patients were determined. Results Patients with ANS dysregulation or PE exhibited significantly low frequency of CD4+CD25+Foxp3+ and CD4+Foxp3+ T cells compared with patients with HFMD or BE. The expression frequency of CD4−CD8− was also significantly decreased in patients with ANS dysregulation or PE. Among patients with ANS dysregulation or PE, the expression frequency of CD4+Foxp3+ increased markedly after milrinone treatment, and was associated with reduction of plasma levels IL-6, IL-8 and IL-10. Plasma concentrations of cAMP were significantly decreased in patients with ANS dysregulation or PE compared with patients with HFMD or BE; however, cAMP levels increased after milrinone treatment. Conclusions These findings suggested decreased different regulatory T populations and cAMP expression correlate with increased EV71 disease severity. Improved outcome after milrinone treatment may associate with increased regulatory T populations, cAMP expression and modulation of cytokines levels.
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Affiliation(s)
- Shih-Min Wang
- Department of Emergency Medicine College of Medicine, National Cheng Kung University and Hospital, Tainan, Taiwan
- Center of Infectious Disease and Signaling Research, National Cheng Kung University, Tainan, Taiwan
- * E-mail: (SMW); (CCL)
| | - I-Chun Chen
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Ting Liao
- Center of Infectious Disease and Signaling Research, National Cheng Kung University, Tainan, Taiwan
| | - Ching-Chuan Liu
- Department of Pediatrics, College of Medicine, National Cheng Kung University and Hospital, Tainan, Taiwan
- Center of Infectious Disease and Signaling Research, National Cheng Kung University, Tainan, Taiwan
- * E-mail: (SMW); (CCL)
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Ye J, Liao YT, Jian YQ, Zhang XD, Wei P, Qi H, Deng CY, Li FR. Alpha-1-antitrypsin for the improvement of autoimmunity and allograft rejection in beta cell transplantation. Immunol Lett 2013; 150:61-8. [PMID: 23333354 DOI: 10.1016/j.imlet.2013.01.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Revised: 12/31/2012] [Accepted: 01/07/2013] [Indexed: 11/24/2022]
Abstract
Islet transplantation offers hope for patients with type 1 diabetes, which is an autoimmune disease. However, islet transplant recipients must overcome two obstacles in both allograft rejection and autoimmune reaction. Alpha-1-antitrypsin (a1-proteinase inhibitor, AAT) possesses anti-inflammatory properties, reduces cytokine-mediated islet damage, and induces specific immune tolerance. In this study, an insulinoma cell line, NIT-1, was transfected with human AAT (hAAT), named NIT-hAAT, and was transplanted to the left renal subcapsular spaces of 7-week-old female non-obese diabetic (NOD) mice (n=22). Cyclophosphamide(CY) was administered to synchronize and accelerate the development of diabetes. Thus, the immunosuppressive and cytoprotective activity of hAAT in β-cell transplantation was investigated. NIT-hAAT has immunomodulatory properties, which delay the onset of autoimmune diabetes, reduce diabetes incidence, inhibit insulitis and β-cell apoptosis, and dampen transplant site inflammation. We propose that NIT-hAAT has a dual function by improving islet autoimmunity and protecting transplanted β-cells from allograft rejection. However, the low expression of hAAT in vivo results in the inability of NIT-hAAT to induce long-term specific immune tolerance and to completely block allograft rejection.
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Affiliation(s)
- Jian Ye
- Department of General Surgery, The Second Clinical Medical College (Shenzhen People's Hospital), Jinan University, Shenzhen, China
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Li YC, Liao YT, Chang HH, Young TH. Covalent bonding of GYIGSR to EVAL membrane surface to improve migration and adhesion of cultured neural stem/precursor cells. Colloids Surf B Biointerfaces 2012; 102:53-62. [PMID: 23006552 DOI: 10.1016/j.colsurfb.2012.08.054] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [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: 02/21/2012] [Revised: 08/28/2012] [Accepted: 08/30/2012] [Indexed: 11/19/2022]
Abstract
In the present study, we modified poly (ethylene-co-vinyl alcohol) (EVAL) membranes with the covalent bonding of the laminin-derived peptides, GYIGSR by using carbodiimidazole (CDI) to activate the hydroxyl groups on the membrane surface. The resulting GYIGSR-immobilized EVAL (EVAL-GYIGSR) membrane was analyzed in terms of the effect of immobilized peptide sequence on the behaviors of neural stem/precursor cells (NSPCs), isolated from embryonic rat cerebral cortex, in the serum-free medium. Compared to the unmodified EVAL, GYIGSR immobilized on the EVAL membrane was shown to significantly increase NSPCs migrating out of neurospheres (p<0.05). In addition, NSPCs on the EVAL-GYIGSR membrane were able to differentiate into neural lineage cells and differentiated neurons expressed functional synaptic activity. Basically, there was no significant difference between GYIGSR-immobilized and laminin-coated substrates for their ability to enhance migration and differentiation of NSPCs, suggesting that the immobilization of GYIGSR on the EVAL membrane was successful and the laminin-derived peptide YIGSR and laminin had similar effect on NSPC behaviors. However, it is non-permanent modification for coating laminin on the substrates to support cell survival after a long-term culture. In this study, differentiated neurons could still adhere to the EVAL-GYIGSR surface with functional synaptic activity after incubation for 20 days. Therefore, the bioactive EVAL-GYIGSR provided an alternative approach to improve migration and survival of NSPCs for neural tissue engineering applications.
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Affiliation(s)
- Yi-Chen Li
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei 100, Taiwan, ROC
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Hsiao TC, Liao YT, Huang JY, Chen TS, Horng GB. An authentication scheme to healthcare security under wireless sensor networks. J Med Syst 2012; 36:3649-64. [PMID: 22399067 DOI: 10.1007/s10916-012-9839-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2012] [Accepted: 02/20/2012] [Indexed: 11/29/2022]
Abstract
In recent years, Taiwan has been seeing an extension of the average life expectancy and a drop in overall fertility rate, initiating our country into an aged society. Due to this phenomenon, how to provide the elderly and patients with chronic diseases a suitable healthcare environment has become a critical issue presently. Therefore, we propose a new scheme that integrates healthcare services with wireless sensor technology in which sensor nodes are employed to measure patients' vital signs. Data collected from these sensor nodes are then transmitted to mobile devices of the medical staff and system administrator, promptly enabling them to understand the patients' condition in real time, which will significantly improve patients' healthcare quality. As per the personal data protection act, patients' vital signs can only be accessed by authorized medical staff. In order to protect patients', the system administrator will verify the medical staff's identity through the mobile device using a smart card and password mechanism. Accordingly, only the verified medical staff can obtain patients' vital signs data such as their blood pressure, pulsation, and body temperature, etc.. Besides, the scheme includes a time-bounded characteristic that allows the verified staff access to data without having to have to re-authenticate and re-login into the system within a set period of time. Consequently, the time-bounded property also increases the work efficiency of the system administrator and user.
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Affiliation(s)
- Tsung-Chih Hsiao
- Department of Computer Science and Engineering, National Chung Hsing University, Taichung, Taiwan.
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Xie CL, Tang HK, Song ZH, Qu SS, Liao YT, Liu HS. [Determination of thermograms of bacterial growth]. Wei Sheng Wu Xue Bao 1989; 29:149-51. [PMID: 2800546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The fundamental growth thermograms of bacteria have been determined by using the microcalorimetric method. These perfect thermogram curves reflect the changes of bacterial growth patterns (including the lag phase of growth, log growth, stationary phase and the decline phase of growth). In our experiments, highly characteristic and reproducible growth patterns are observed under the same condition, therefore one can use these thermograms as "finger print" to discriminate bacteria. On the other hand, there thermogram curves contain ample information, which are very significant for the studies on microorganism metabolism, bio-thermokinetic and clinical fields.
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Liao YT. [Acid nonspecific esterase activity in human lymphocytes (author's transl)]. Zhonghua Nei Ke Za Zhi 1981; 20:352-4. [PMID: 7318591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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