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Gräfner SJ, Huang JH, Wu PY, Renganathan V, Shih PS, Kao CR. Dislodgement of Hydrogen Bubbles in Microchannels with Embedded Pillars: An Analytical, Experimental, and Numerical Study. Adv Mater 2024; 36:e2307850. [PMID: 37941505 DOI: 10.1002/adma.202307850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 10/27/2023] [Indexed: 11/10/2023]
Abstract
Microchannels with integrated pillars have enhanced the production capabilities and performance of various applications due to their high surface-to-volume ratio. However, emerging gas bubbles can become trapped, potentially limiting the functionality or efficiency of the device when scaled down to the low-micrometer scale. Understanding the conditions required to dislodge these bubbles is thus critical for optimizing microfluidic devices with complex physical behaviors. Here an analytical model is presented that outlines the dislodgment conditions and driving forces for such gas-liquid flows. These terms are derived from the gas-liquid interface properties, geometry, and processing parameters. As the density of the pillar arrangement is scaled down, the resistance to bubble dislodgment typically increases. Nevertheless, the bubble is compelled to dislodge at lower pressure loads when critical volumes are reached. This newly discovered effect is particularly noticeable in densely packed arrays and can be explained by the interplay of increased surface tension, geometrical restrictions, and volume-preserving forces. The analytical terms and effects are validated through novel experimental and numerical methods tailored for microchannels in the low-micrometer scale, showing strong agreement.
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Affiliation(s)
- Simon Johannes Gräfner
- Department of Materials Science and Engineering, National Taiwan University, Taipei City, 10617, Taiwan
| | - Jeng-Hau Huang
- Department of Materials Science and Engineering, National Taiwan University, Taipei City, 10617, Taiwan
| | - Po-Yi Wu
- Moldex3D (CoreTech System Co., Ltd.), Hsinchu County, 302, Taiwan
| | - Vengudusamy Renganathan
- Department of Materials Science and Engineering, National Taiwan University, Taipei City, 10617, Taiwan
| | - Po-Shao Shih
- Department of Materials Science and Engineering, National Taiwan University, Taipei City, 10617, Taiwan
| | - Chengheng Robert Kao
- Department of Materials Science and Engineering, National Taiwan University, Taipei City, 10617, Taiwan
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Huang YC, Hsu CC, Fu TC, Wang JS. Interval aerobic/resistance exercise training depresses adrenergic-induced apoptosis of lymphocytes in sedentary males. Eur J Appl Physiol 2024; 124:837-848. [PMID: 37712975 DOI: 10.1007/s00421-023-05311-3] [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: 05/05/2023] [Accepted: 08/30/2023] [Indexed: 09/16/2023]
Abstract
PURPOSE Adrenergic stimulation affects lymphocyte autophagy and apoptosis by activating β1-adrenergic receptor (β1-AR) and G protein-coupled receptor kinase 2 (GRK-2) downstream signaling. This study investigated how combined aerobic and resistance exercise training on the interval or continuous pattern influences aerobic/muscular fitness and β1-AR/GRK-2 signaling, and corresponding apoptosis/autophagy of lymphocytes in sedentary males. METHODS Thirty-four sedentary males were randomized into interval training (IT, age = 22.5 ± 0.6 years, fitness level = 47.5 ± 0.9 mL/min/kg, body mass index (BMI) = 22.4 ± 0.4 kg/m2, n = 17) and continuous training (CT, age = 21.6 ± 0.4 years, fitness level = 45.2 ± 1.0 mL/min/kg, BMI = 22.2 ± 0.3 kg/m2, n = 17) groups. These subjects performed IT (bicycle exercise at alternating 40% and 80%VO2 reserve (VO2R) and isokinetic exercise at alternating 60°/s and 180°/s) or CT (bicycle exercise at continuously 60%VO2R and isokinetic exercise at continuously 120°/s) for 30 min/day, 5 days/week for 6 weeks. Aerobic capacity and muscular strength/endurance were determined by the graded exercise test (GXT) and isokinetic strength test, respectively. Blood lymphocyte autophagy/apoptosis and β1-AR/GRK-2 signaling were analyzed using flow cytometry. RESULTS Both IT and CT groups increased isokinetic strengths at various angular velocities, whereas only IT significantly enhanced muscle endurance, indicated by lowered fatigue index from 47.0 ± 1.3% to 41.8 ± 1.6% (P < 0.05). Moreover, the IT group (143 ± 7%) revealed a higher improvement in VO2peak than CT group (132 ± 6%) (P < 0.05). Acute GXT augmented (i) GRK-2 and protein kinase A expressions, (ii) LAMP-2 upregulation and acridine orange staining, (iii) mitochondrial transmembrane potential diminishing, caspase-3 activation, and phosphatidylserine (PS) exposure caused by epinephrine in blood lymphocytes. However, the degree of epinephrine-induced lymphocyte PS exposure potentiated by GXT was suppressed from 65.2 ± 5.2% to 47.4 ± 6.5% following 6 weeks of the IT (P < 0.05). CONCLUSION The IT may be considered more beneficial than CT in terms of improving aerobic/muscular fitness and simultaneously ameliorating apoptosis of blood lymphocyte evoked by intense exercise or adrenergic stimulation in sedentary males.
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Affiliation(s)
- Yu-Chieh Huang
- Department of Physical Therapy, College of Medical and Health Science, Asia University, Taichung, Taiwan
| | - Chih-Chin Hsu
- Heart Failure Center, Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Tieh-Cheng Fu
- Heart Failure Center, Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Jong-Shyan Wang
- Heart Failure Center, Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital, Keelung, Taiwan.
- Healthy Aging Research Center, Graduate Institute of Rehabilitation Science, Medical College, Chang Gung University, Tao-Yuan, Taiwan.
- Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Tao-Yuan, Taiwan.
- Graduate Institute of Rehabilitation Science, Chang Gung University, 259 Wen-Hwa 1St Road, Kwei-Shan, Tao-Yuan, 333, Taiwan.
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Chen HM, Tsai YH, Hsu CY, Wang YY, Hsieh CE, Chen JH, Chang YS, Lin CY. Peptide-Coated Bacteriorhodopsin-Based Photoelectric Biosensor for Detecting Rheumatoid Arthritis. Biosensors (Basel) 2023; 13:929. [PMID: 37887122 PMCID: PMC10605345 DOI: 10.3390/bios13100929] [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] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/15/2023] [Accepted: 10/11/2023] [Indexed: 10/28/2023]
Abstract
An effective early diagnosis is important for rheumatoid arthritis (RA) management. This study reveals a novel RA detection method using bacteriorhodopsin as a photoelectric transducer, a light-driven proton pump in purple membranes (PMs). It was devised by covalently conjugating a PM monolayer-coated electrode with a citrullinated-inter-alpha-trypsin inhibitor heavy chain 3 (ITIH3)542-556 peptide that recognizes the serum RA-associated autoantibodies. The direct serum coating decreased the photocurrents in the biosensor, with the reduction in the photocurrent caused by coating with an RA-patient serum that is significantly larger than that with a healthy-control serum (38.1% vs. 20.2%). The difference in the reduction in the photocurrent between those two serum groups widened after the serum-coated biosensor was further labeled with gold nanoparticle (AuNP)-conjugated anti-IgA (anti-IgA-AuNP) (53.6% vs. 30.6%). Both atomic force microscopic (AFM) and Raman analyses confirmed the sequential peptide, serum, and anti-IgA-AuNP coatings on the PM-coated substrates. The reductions in the photocurrent measured in both the serum and anti-IgA-AuNPs coating steps correlated well with the results using commercial enzyme-linked immunosorbent assay kits (Spearman rho = 0.805 and 0.787, respectively), with both a sensitivity and specificity close to 100% in both steps. It was shown that an RA diagnosis can be performed in either a single- or two-step mode using the developed biosensor.
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Affiliation(s)
- Hsiu-Mei Chen
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan; (H.-M.C.); (Y.-Y.W.); (C.-E.H.)
| | - Yi-Hsuan Tsai
- Department of Family Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan;
| | - Chien-Yi Hsu
- Division of Cardiology and Cardiovascular Research Center, Department of Internal Medicine, Taipei Medical University Hospital, Taipei 11031, Taiwan;
- Division of Cardiology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Taipei Heart Institute, Taipei Medical University, Taipei 11031, Taiwan
| | - Yong-Yi Wang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan; (H.-M.C.); (Y.-Y.W.); (C.-E.H.)
| | - Cheng-En Hsieh
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan; (H.-M.C.); (Y.-Y.W.); (C.-E.H.)
| | - Jin-Hua Chen
- Graduate Institute of Data Science, College of Management, Taipei Medical University, Taipei 11031, Taiwan;
- Office of Data Science, Taipei Medical University, Taipei 11031, Taiwan
| | - Yu-Sheng Chang
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Ching-Yu Lin
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
- Ph.D. Program in Medical Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
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Lee MS, Felipe-Dimog EB, Yang JF, Chen YY, Wu KT, Kuo HJ, Lin TC, Wang CL, Hsieh MH, Lin CY, Batsaikhan B, Ho CK, Wu MT, Dai CY. The Efficacy of Anthropometric Indicators in Predicting Non-Alcoholic Fatty Liver Disease Using FibroScan ® CAP Values among the Taiwanese Population. Biomedicines 2023; 11:2518. [PMID: 37760959 PMCID: PMC10526368 DOI: 10.3390/biomedicines11092518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/04/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
The controlled attenuation parameter (CAP) measurement obtained from FibroScan® is a low-risk method of assessing fatty liver. This study investigated the association between the FibroScan® CAP values and nine anthropometric indicators, including the abdominal volume index (AVI), body fat percentage (BFP), body mass index (BMI), conicity index (CI), ponderal index (PI), relative fat mass (RFM), waist circumference (WC), waist-hip ratio (WHR), and waist-to-height ratio (WHtR), and risk of non-alcoholic fatty liver disease (fatty liver). We analyzed the medical records of adult patients who had FibroScan® CAP results. CAP values <238 dB/m were coded as 0 (non- fatty liver) and ≥238 dB/m as 1 (fatty liver). An individual is considered to have class 1 obesity when their body mass index (BMI) ranges from 30 kg/m2 to 34.9 kg/m2. Class 2 obesity is defined by a BMI ranging from 35 kg/m2 to 39.9 kg/m2, while class 3 obesity is designated by a BMI of 40 kg/m2 or higher. Out of 1763 subjects, 908 (51.5%) had fatty liver. The BMI, WHtR, and PI were found to be more strongly correlated with the CAP by the cluster dendrogram with correlation coefficients of 0.58, 0.54, and 0.54, respectively (all p < 0.0001). We found that 28.3% of the individuals without obesity had fatty liver, and 28.2% of the individuals with obesity did not have fatty liver. The BMI, CI, and PI were significant predictors of fatty liver. The BMI, PI, and WHtR demonstrated better predictive ability, indicated by AUC values of 0.72, 0.68, and 0.68, respectively, a finding that was echoed in our cluster group analysis that showed interconnected clustering with the CAP. Therefore, of the nine anthropometric indicators we studied, the BMI, CI, PI, and WHtR were found to be more effective in predicting the CAP score, i.e., fatty liver.
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Affiliation(s)
- Meng-Szu Lee
- Department of Public Health, College of Health Sciences, Kaohsiung Medical University, Kaohsiung City 807, Taiwan; (M.-S.L.); or (E.B.F.-D.); (C.-K.H.)
- Health Management Center, Department of Occupational and Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung City 80756, Taiwan; (J.-F.Y.); (K.-T.W.); (C.-L.W.); (M.-H.H.); (C.-Y.L.)
| | - Eva Belingon Felipe-Dimog
- Department of Public Health, College of Health Sciences, Kaohsiung Medical University, Kaohsiung City 807, Taiwan; (M.-S.L.); or (E.B.F.-D.); (C.-K.H.)
- Nursing Department, Mountain Province State Polytechnic College, Bontoc 2616, Mountain Province, Philippines
| | - Jeng-Fu Yang
- Health Management Center, Department of Occupational and Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung City 80756, Taiwan; (J.-F.Y.); (K.-T.W.); (C.-L.W.); (M.-H.H.); (C.-Y.L.)
| | - Yi-Yu Chen
- Health Management Center, Department of Occupational and Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung City 80756, Taiwan; (J.-F.Y.); (K.-T.W.); (C.-L.W.); (M.-H.H.); (C.-Y.L.)
| | - Kuan-Ta Wu
- Health Management Center, Department of Occupational and Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung City 80756, Taiwan; (J.-F.Y.); (K.-T.W.); (C.-L.W.); (M.-H.H.); (C.-Y.L.)
| | - Hsiang-Ju Kuo
- Health Management Center, Department of Occupational and Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung City 80756, Taiwan; (J.-F.Y.); (K.-T.W.); (C.-L.W.); (M.-H.H.); (C.-Y.L.)
| | - Tzu-Chun Lin
- Executive Master of Healthcare Administration, Department of Healthcare Administration and Medical Informatics, Kaohsiung Medical University Hospital, Kaohsiung City 80756, Taiwan;
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung City 80756, Taiwan
| | - Chao-Ling Wang
- Health Management Center, Department of Occupational and Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung City 80756, Taiwan; (J.-F.Y.); (K.-T.W.); (C.-L.W.); (M.-H.H.); (C.-Y.L.)
| | - Meng-Hsuan Hsieh
- Health Management Center, Department of Occupational and Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung City 80756, Taiwan; (J.-F.Y.); (K.-T.W.); (C.-L.W.); (M.-H.H.); (C.-Y.L.)
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung City 80756, Taiwan
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung City 80756, Taiwan
| | - Chia-Yi Lin
- Health Management Center, Department of Occupational and Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung City 80756, Taiwan; (J.-F.Y.); (K.-T.W.); (C.-L.W.); (M.-H.H.); (C.-Y.L.)
| | - Batbold Batsaikhan
- Department of Internal Medicine, Institute of Medical Sciences, Mongolian National University of Medical Sciences, Ulaanbaatar 14210, Mongolia;
| | - Chi-Kung Ho
- Department of Public Health, College of Health Sciences, Kaohsiung Medical University, Kaohsiung City 807, Taiwan; (M.-S.L.); or (E.B.F.-D.); (C.-K.H.)
- Health Management Center, Department of Occupational and Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung City 80756, Taiwan; (J.-F.Y.); (K.-T.W.); (C.-L.W.); (M.-H.H.); (C.-Y.L.)
| | - Ming-Tsang Wu
- Department of Public Health, College of Health Sciences, Kaohsiung Medical University, Kaohsiung City 807, Taiwan; (M.-S.L.); or (E.B.F.-D.); (C.-K.H.)
- Research Center for Precision Environmental Medicine, Kaohsiung Medical University, Kaohsiung City 80756, Taiwan
- Department of Family Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung City 80756, Taiwan
- Ph.D. Program in Environmental and Occupational Medicine, Kaohsiung Medical University, Kaohsiung City 80756, Taiwan
| | - Chia-Yen Dai
- Health Management Center, Department of Occupational and Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung City 80756, Taiwan; (J.-F.Y.); (K.-T.W.); (C.-L.W.); (M.-H.H.); (C.-Y.L.)
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung City 80756, Taiwan
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung City 80756, Taiwan
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung City 87056, Taiwan
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Suhail M, Chiu IH, Lai YR, Khan A, Al-Sowayan NS, Ullah H, Wu PC. Xanthan-Gum/Pluronic-F-127-Based-Drug-Loaded Polymeric Hydrogels Synthesized by Free Radical Polymerization Technique for Management of Attention-Deficit/Hyperactivity Disorder. Gels 2023; 9:640. [PMID: 37623095 PMCID: PMC10453617 DOI: 10.3390/gels9080640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/01/2023] [Accepted: 08/04/2023] [Indexed: 08/26/2023] Open
Abstract
Smart and intelligent xanthan gum/pluronic F-127 hydrogels were fabricated for the controlled delivery of atomoxetine HCl. Different parameters such as DSC, TGA, FTIR, XRD, SEM, drug loading, porosity, swelling index, drug release, and kinetics modeling were appraised for the prepared matrices of hydrogels. FTIR confirmed the successful synthesis of the hydrogel, while TGA and DSC analysis indicated that the thermal stability of the reagents was improved after the polymerization technique. SEM revealed the hard surface of the hydrogel, while XRD indicated a reduction in crystallinity of the reagents. High gel fraction was achieved with high incorporated contents of the polymers and the monomer. An increase in porosity, drug loading, swelling, and drug release was observed with the increase in the concentrations of xanthan gum and acrylic acid, whereas Pluronic F-127 showed the opposite effect. A negligible swelling index was shown at pH 1.2 and 4.6 while greater swelling was observed at pH 7.4, indicating a pH-responsive nature of the designed hydrogels. Furthermore, a higher drug release was found at pH 7.4 compared to pH 1.2 and 4.6, respectively. The first kinetics order was followed by the prepared hydrogel formulations. Thus, it is signified from the discussion that smart xanthan gum/pluronic F-127 hydrogels have the potential to control the release of the atomoxetine HCl in the colon for an extended period of time.
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Affiliation(s)
- Muhammad Suhail
- School of Pharmacy, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung 80708, Taiwan; (I.-H.C.); (H.U.)
| | - I-Hui Chiu
- School of Pharmacy, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung 80708, Taiwan; (I.-H.C.); (H.U.)
| | - Yi-Ru Lai
- School of Pharmacy, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung 80708, Taiwan; (I.-H.C.); (H.U.)
| | - Arshad Khan
- Department of Pharmaceutics, Faculty of Pharmacy, Khawaja Fareed Campus (Railway Road), The Islamia University of Bahawalpur, Punjab 63100, Pakistan;
| | | | - Hamid Ullah
- School of Pharmacy, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung 80708, Taiwan; (I.-H.C.); (H.U.)
| | - Pao-Chu Wu
- School of Pharmacy, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung 80708, Taiwan; (I.-H.C.); (H.U.)
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
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Tsai MJ, Chang WY, Chiu IH, Lin IL, Wu PC. Improvement in Skin Penetration Capacity of Linalool by Using Microemulsion as a Delivery Carrier: Formulation Optimization and In Vitro Evaluation. Pharmaceutics 2023; 15:pharmaceutics15051446. [PMID: 37242688 DOI: 10.3390/pharmaceutics15051446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/01/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Linalool is an aromatic oil with analgesic, anti-inflammatory and anti-UVB-induced skin damage effects. The aim of this study was to develop a linalool-loaded microemulsion formulation for topical application. In order to quickly obtain an optimal drug-loaded formulation, statistical tools of the response surface methodology and a mixed experimental design with four independent variables of oil (X1), mixed surfactant (X2), cosurfactant (X3) and water (X4) were used to design a series of model formulations in order to analyze the effect of the composition on the characteristics and permeation capacity of linalool-loaded microemulsion formulations and to obtain an appropriate drug-loaded formulation. The results showed that the droplet size, viscosity and penetration capacity of linalool-loaded formulations were significantly affected by formulation component proportions. The skin deposition amount of the drug and flux of such formulations expressively increased about 6.1-fold and 6.5-fold, respectively, when compared to the control group (5% linalool dissolved in ethanol). After 3 months of storage, the physicochemical characteristics and drug level did not show a significant change. The linalool formulation-treated rat skin showed non-significant irritation compared to skin treatments in the distilled-water-treated group. The results showed that specific microemulsion applications might be considered as potential drug delivery carriers for essential oil topical application.
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Affiliation(s)
- Ming-Jun Tsai
- School of Medicine, College of Medicine, China Medical University, Taichung 404, Taiwan
- Department of Neurology, China Medical University Hospital, Taichung 404, Taiwan
- Department of Neurology, An-Nan Hospital, China Medical University, Tainan 709, Taiwan
| | - Wen-Yu Chang
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - I-Hui Chiu
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - I-Ling Lin
- Department of Medicine Laboratory Science and Biotechnology, College of Health Science, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Laboratory Medicine, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
| | - Pao-Chu Wu
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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Hung MJ, Yeh CT, Kounis NG, Koniari I, Hu P, Hung MY. Coronary Artery Spasm-Related Heart Failure Syndrome: Literature Review. Int J Mol Sci 2023; 24:ijms24087530. [PMID: 37108691 PMCID: PMC10145866 DOI: 10.3390/ijms24087530] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 04/04/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
Although heart failure (HF) is a clinical syndrome that becomes worse over time, certain cases can be reversed with appropriate treatments. While coronary artery spasm (CAS) is still underappreciated and may be misdiagnosed, ischemia due to coronary artery disease and CAS is becoming the single most frequent cause of HF worldwide. CAS could lead to syncope, HF, arrhythmias, and myocardial ischemic syndromes such as asymptomatic ischemia, rest and/or effort angina, myocardial infarction, and sudden death. Albeit the clinical significance of asymptomatic CAS has been undervalued, affected individuals compared with those with classic Heberden's angina pectoris are at higher risk of syncope, life-threatening arrhythmias, and sudden death. As a result, a prompt diagnosis implements appropriate treatment strategies, which have significant life-changing consequences to prevent CAS-related complications, such as HF. Although an accurate diagnosis depends mainly on coronary angiography and provocative testing, clinical characteristics may help decision-making. Because the majority of CAS-related HF (CASHF) patients present with less severe phenotypes than overt HF, it underscores the importance of understanding risk factors correlated with CAS to prevent the future burden of HF. This narrative literature review summarises and discusses separately the epidemiology, clinical features, pathophysiology, and management of patients with CASHF.
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Affiliation(s)
- Ming-Jui Hung
- Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital Keelung, Chang Gung University College of Medicine, Keelung City 24201, Taiwan
| | - Chi-Tai Yeh
- Department of Medical Research and Education, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan
- Continuing Education Program of Food Biotechnology Applications, College of Science and Engineering, National Taitung University, Taitung 95092, Taiwan
| | - Nicholas G Kounis
- Department of Cardiology, University of Patras Medical School, 26221 Patras, Greece
| | - Ioanna Koniari
- Cardiology Department, Liverpool Heart and Chest Hospital, Liverpool L14 3PE, UK
| | - Patrick Hu
- Department of Internal Medicine, School of Medicine, University of California, Riverside, Riverside, CA 92521, USA
- Department of Cardiology, Riverside Medical Clinic, Riverside, CA 92506, USA
| | - Ming-Yow Hung
- Division of Cardiology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, No.291, Zhongzheng Rd., Zhonghe District, New Taipei City 23561, Taiwan
- Taipei Heart Institute, Taipei Medical University, Taipei City 110301, Taiwan
- Division of Cardiology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, New Taipei City 23561, Taiwan
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Suhail M, Hsieh YH, Khan A, Minhas MU, Wu PC. Preparation and In Vitro Evaluation of Aspartic/Alginic Acid Based Semi-Interpenetrating Network Hydrogels for Controlled Release of Ibuprofen. Gels 2021; 7:68. [PMID: 34207688 PMCID: PMC8293266 DOI: 10.3390/gels7020068] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/28/2021] [Accepted: 05/29/2021] [Indexed: 12/22/2022] Open
Abstract
Different combinations of polymers, aspartic acid (ASP), alginic acid (AL), and monomer acrylic acid (AA) were crosslinked in the presence of an initiator ammonium peroxodisulfate (APS) and cross-linker ethylene glycol dimethacrylate (EGDMA) to develop aspartic acid/alginic acid-co-poly(acrylic acid) (ASP/ALPAA) (semi-interpenetrating polymer network (SIPN)) hydrogels by the free radical polymerization technique for the controlled delivery of ibuprofen (IBP). Various studies such as dynamic swelling studies, drug loading, in vitro drug release and sol-gel analysis were carried out for the hydrogels. Higher swelling was observed at higher pH 7.4 as compared to lower pH 1.2, due to the presence of carboxylic groups of polymers and the monomer. Hence, pH-dependent swelling was exhibited by the developed hydrogels which led to a pH-dependent drug release and vice versa. The structural properties of the hydrogels were assessed by FTIR, PXRD, TGA, DSC, and SEM which confirmed the fabrication and stability of the developed structure. FTIR analysis revealed the reaction of both polymers with the monomer during the polymerization process and confirmed the overlapping of the monomer on the backbone of the both polymers. The disappearance of high intense crystalline peaks and the encapsulation of the drug by the hydrogel network was confirmed by PXRD. TGA and DSC showed that the developed hydrogels were thermally more stable than their basic ingredients. Similarly, the surface morphology of the hydrogels was analyzed by SEM and showed a smooth surface with few pores. Conclusively, ASP/ALPAA hydrogels have the potential to deliver IBP for a long period of time in a controlled way.
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Affiliation(s)
- Muhammad Suhail
- School of Pharmacy, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung City 80708, Taiwan;
| | - Yi-Han Hsieh
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung City 80708, Taiwan;
| | - Arshad Khan
- Department of Pharmaceutics, Faculty of Pharmacy, Khawaja Fareed Campus (Railway Road), The Islamia University of Bahawalpur, Punjab 63100, Pakistan;
| | | | - Pao-Chu Wu
- School of Pharmacy, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung City 80708, Taiwan;
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung City 80708, Taiwan
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung City 80708, Taiwan
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9
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Hung CI, Liu CY, Yang CH, Wang SJ. Migraine with active headache was associated with other painful physical symptoms at two-year follow-up among patients with major depressive disorder. PLoS One 2019; 14:e0216108. [PMID: 31039196 PMCID: PMC6490935 DOI: 10.1371/journal.pone.0216108] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 04/20/2017] [Accepted: 04/15/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Few studies have investigated the associations of comorbid migraine with other painful physical symptoms (PPS) in patients with major depressive disorder (MDD) at the two-year follow-up point. This study aimed to investigate this issue. METHODS At baseline, 155 outpatients with MDD were enrolled. Migraine was diagnosed at baseline according to the International Classification of Headache Disorders. At follow-up, data of 101 subjects were analyzed. The average intensities of head, bone and/or joints, back, chest, abdomen, neck and/or shoulder, general muscle, and limb pain in the past week were evaluated using a visual analog scale (VAS). At follow-up, active headache was defined as a score on the VAS > 3. Multiple linear regressions were used to investigate the associations of migraine at baseline with other PPS at follow-up. RESULTS Compared with the migraine with inactive headache group and the non-migraine group, patients with migraine with active headache had significantly higher intensities of other PPS and a lower remission rate of depression. There were no significant differences in the pain intensities of the other seven PPS between the migraine with inactive headache group and the non-migraine group. Headache intensity was significantly correlated with the intensities of other PPS at baseline and follow-up. Migraine with active headache independently predicted other PPS after controlling for depression and anxiety at baseline. CONCLUSIONS Migraine with active headache among MDD patients could predict other PPS. Prevention and treatment of headache might help to decrease other PPS and improve the prognosis of depression. Integration of treatment for depression and headache is indicated.
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Affiliation(s)
- Ching-I Hung
- Department of Psychiatry, Chang Gung Memorial Hospital at Linkou, Tao-Yuan, Taiwan
- School of Medicine, Chang Gung University, Tao-Yuan, Taiwan
| | - Chia-Yih Liu
- Department of Psychiatry, Chang Gung Memorial Hospital at Linkou, Tao-Yuan, Taiwan
- School of Medicine, Chang Gung University, Tao-Yuan, Taiwan
| | - Ching-Hui Yang
- Department of Nursing, Mackay Medical College, New Taipei, Taiwan
| | - Shuu-Jiun Wang
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
- Brain Research Center, National Yang-Ming University, Taipei, Taiwan
- Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
- * E-mail:
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10
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Tung YH, Ng LT. Effects of nitrogen fertilization rate on tocopherols, tocotrienols and γ-oryzanol contents and enzymatic antioxidant activities in rice grains. Physiol Mol Biol Plants 2019; 25:189-195. [PMID: 30804641 PMCID: PMC6352534 DOI: 10.1007/s12298-018-0617-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 10/14/2018] [Accepted: 10/23/2018] [Indexed: 06/09/2023]
Abstract
Tocopherols (Toc), tocotrienols (T3) and γ-oryzanol (GO), major bioactive compounds of rice, are known to possess potent antioxidant activity. In this study, the objective was to determine the effects of nitrogen fertilization rate on contents of Toc, T3 and GO, and activities of enzymatic antioxidants in rice grains. Experiments were conducted on five different levels of nitrogen fertilization. Among the different treatments, grains of 2 N (two-fold of the recommended amount of nitrogen fertilizer) treatment showed the highest total Toc, total T3, α-T3, β-Toc, γ-Toc and γ-T3 levels, whereas 0 N (no treatment) group had the highest GO content. Increasing nitrogen fertilization significantly reduced the rice grain catalase and ascorbate peroxidase, but not the superoxide dismutase activities. Under 0 N and 0.5 N (low N fertilization) treatments, malondialdehyde and H2O2 contents in rice grains were significantly higher than that of other treatments. These results suggest that a two-fold increase in nitrogen fertilization favor the accumulation of Toc and T3 but not GO in rice grains.
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Affiliation(s)
- Yu-Hsiang Tung
- Department of Agricultural Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan
| | - Lean-Teik Ng
- Department of Agricultural Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan
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Hsin KT, Wang CN. Expression shifts of floral symmetry genes correlate to flower actinomorphy in East Asia endemic Conandron ramondioides (Gesneriaceae). Bot Stud 2018; 59:24. [PMID: 30374786 PMCID: PMC6206312 DOI: 10.1186/s40529-018-0242-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 10/22/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Bilateral symmetry flower (zygomorphy) is the ancestral state for Gesneriaceae species. Yet independent reversions to actinomorphy have been parallelly evolved in several lineages. Conandron ramondioides is a natural radially symmetrical species survived in dense shade mountainous habitats where specialist pollinators are scarce. Whether the mutations in floral symmetry genes such as CYC, RAD and DIV genes, or their expression pattern shifts contribute to the reversion to actinomorphy in C. ramondioides thus facilitating shifts to generalist pollinators remain to be investigated. To address this, we isolated putative orthologues of these genes and relate their expressions to developmental stages of flower actinomorphy. RESULTS Tissue specific RT-PCR found no dorsal identity genes CrCYCs and CrRADs expression in petal and stamen whorls, while the ventral identity gene CrDIV was expressed in all petals. Thus, ventralized actinomorphy is evolved in C. ramondioides. However, CrCYCs still persists their expression in sepal whorl. This is congruent with previous findings that CYC expression in sepals is an ancestral state common to both actinomorphic and zygomorphic core Eudicot species. CONCLUSIONS The loss of dorsal identity genes CrCYCs and CrRADs expression in petal and stamen whorl without mutating these genes specifies that a novel regulation change, possibly on cis-elements of these genes, has evolved to switch zygomorphy to actinomorphy.
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Affiliation(s)
- Kuan-Ting Hsin
- Institute of Ecology and Evolutionary Biology, National Taiwan University, Taipei, Taiwan
| | - Chun-Neng Wang
- Institute of Ecology and Evolutionary Biology, National Taiwan University, Taipei, Taiwan
- Department of Life Science, National Taiwan University, Taipei, Taiwan
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Abstract
INTRODUCTION The introduction of universal health insurance coverage aims to provide equal accessibility and affordability of health care, but whether such a policy eliminates health inequalities has not been conclusively determined. This research aims to examine the healthcare outcomes of oral cancer and determine whether the universal coverage system in Taiwan has reduced health inequality. METHODS Linking the databases of the National Cancer Registry with the National Mortality Registry in Taiwan, we stratified patients with oral squamous cell carcinoma by gender and income to estimate the incidence rate, cumulative incidence rate aged from 20 to 79 (CIR20-79), life expectancy, and expected years of life lost (EYLL). The difficulties with asymmetries and short follow-up periods were resolved through applying survival analysis extrapolation methods. RESULTS While all people showed a general improvement in life expectancy after the introduction of the NHI, the estimated change in EYLL's of the high-, middle-, and low-income female patients were found to have +0.3, -0.5 and -7 years of EYLL, respectively, indicating a reduction in health inequality. Improvements for the male patients were unremarkable. There was no drop in the CIR20-79 of oral cancer in disadvantaged groups as in those with higher incomes. CONCLUSIONS Universal coverage alone may not reduce health inequality across different income groups for oral cancer unless effective preventive measures are implemented for economically disadvantaged regions.
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Affiliation(s)
- Fuhmei Wang
- Department of Economics, National Cheng Kung University, Tainan, Taiwan
| | - Jung-Der Wang
- National Cheng Kung University, Department of Public Health, College of Medicine, Tainan, Taiwan
| | - Yu-Wen Hung
- National Cheng Kung University, Department of Public Health, College of Medicine, Tainan, Taiwan
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Chang CK, Lin XR, Lin YL, Fang WH, Lin SW, Chang SY, Kao JT. Magnolol-mediated regulation of plasma triglyceride through affecting lipoprotein lipase activity in apolipoprotein A5 knock-in mice. PLoS One 2018; 13:e0192740. [PMID: 29425239 PMCID: PMC5806881 DOI: 10.1371/journal.pone.0192740] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 01/30/2018] [Indexed: 01/24/2023] Open
Abstract
Hyperlipidemia is a risk factor of arteriosclerosis, stroke, and other coronary heart disease, which has been shown to correlate with single nucleotide polymorphisms of genes essential for lipid metabolism, such as lipoprotein lipase (LPL) and apolipoprotein A5 (APOA5). In this study, the effect of magnolol, the main active component extracted from Magnolia officinalis, on LPL activity was investigated. A dose-dependent up-regulation of LPL activity, possibly through increasing LPL mRNA transcription, was observed in mouse 3T3-L1 pre-adipocytes cultured in the presence of magnolol for 6 days. Subsequently, a transgenic knock-in mice carrying APOA5 c.553G>T variant was established and then fed with corn oil with or without magnolol for four days. The baseline plasma triglyceride levels in transgenic knock-in mice were higher than those in wild-type mice, with the highest increase occurred in homozygous transgenic mice (106 mg/dL vs 51 mg/dL, p<0.01). After the induction of hyperglyceridemia along with the administration of magnolol, the plasma triglyceride level in heterozygous transgenic mice was significantly reduced by half. In summary, magnolol could effectively lower the plasma triglyceride levels in APOA5 c.553G>T variant carrier mice and facilitate the triglyceride metabolism in postprandial hypertriglyceridemia.
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Affiliation(s)
- Chun-Kai Chang
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Xiu-Ru Lin
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Laboratory Medicine, National Yang-Ming University Hospital, Yilan, Taiwan
| | - Yen-Lin Lin
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Woei-Horng Fang
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Shu-Wha Lin
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Sui-Yuan Chang
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, Taiwan
- * E-mail: (JK); (SC)
| | - Jau-Tsuen Kao
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan
- * E-mail: (JK); (SC)
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Abstract
Background No study has investigated the impact of the duration of untreated depression (DUD) on the severity of depression at the two-year follow-up point in patients with major depressive disorder (MDD) who discontinued pharmacotherapy. This study aimed to investigate this issue. Methods This study enrolled 155 subjects with MDD at baseline, and 101 subjects who had discontinued pharmacotherapy for 17.1 ± 5.8 months were assessed at the two-year follow-up point. DUD was defined as the interval between the onset of the index major depressive episode and the start of pharmacotherapy. The 17-item Hamilton Depression Rating Scale (HAMD) was used to evaluate depression. Multiple linear regressions were used to examine the impacts of DUD on the severity and improvement percentage (IP) of depression at follow-up. Results A longer DUD was significantly associated with a greater severity and a lower IP of depression at follow-up. After controlling for confounding factors, DUD was the most significant factor predicting the severity and IP of depression at follow-up. DUD was more strongly associated with the prognosis of depression at follow-up than depression and anxiety severities at baseline. Conclusions The DUD at baseline independently predicted the severity of depression at the two-year follow-up point. Although the patients had discontinued pharmacotherapy for nearly 1.5 years, the impact of the DUD on the severity of depression persisted at follow-up. The DUD was an important index that predicted the severity of depression at the two-year follow-up point.
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Affiliation(s)
- Ching-I Hung
- Department of Psychiatry, Chang Gung Memorial Hospital at Linkou and Chang Gung University College of Medicine, Tao-Yuan, Taiwan
- * E-mail:
| | - Chia-Yih Liu
- Department of Psychiatry, Chang Gung Memorial Hospital at Linkou and Chang Gung University College of Medicine, Tao-Yuan, Taiwan
| | - Ching-Hui Yang
- Department of Nursing, Chang Gung University of Science and Technology, Tao-Yuan, Taiwan
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15
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Lee CH, Wang JY, Lin HC, Lin PY, Chang JH, Suk CW, Lee LN, Lan CC, Bai KJ. Treatment delay and fatal outcomes of pulmonary tuberculosis in advanced age: a retrospective nationwide cohort study. BMC Infect Dis 2017; 17:449. [PMID: 28646854 PMCID: PMC5483299 DOI: 10.1186/s12879-017-2554-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 06/16/2017] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Studies focusing on pulmonary tuberculosis in advanced age (≥80 years) are lacking. This study aimed to explore treatment delay, outcomes and their predictors in this group. METHODS Adult (≥20 years) patients with pulmonary tuberculosis were identified from the National Health Insurance Research Database of Taiwan from 2004 to 2009. Treatment completion and mortality rates were noted at one year after treatment. RESULTS Among the 81,081 patients with pulmonary tuberculosis identified, 13,923 (17.2%) were aged ≥80 years, and 26,897 (33.2%) were aged 65-79 years. The treatment completion, mortality rates and treatment delay were 54.8%, 34.7% and 61 (12-128) [median, (1st-3rd quartiles)] days in patients aged ≥80 years, 68.3%, 18.5% and 53 (8-122) days in patients aged 65-79 years, and 78.9%, 6.5% and 21 (1-84) days in patients aged <65 years, respectively. The elder patients were more likely to receive second-line anti-tuberculosis agents. The treatment completion rate decreased with older age, female sex, comorbidities, low income, requiring second-line anti-tuberculosis agents, severity of pulmonary tuberculosis and longer treatment delay. Older age, female sex, comorbidities, low income, and not undergoing rapid molecular diagnostic tests were independently associated with longer treatment delays. CONCLUSIONS Pulmonary tuberculosis in advanced age has a longer treatment delay and a higher mortality rate. Applying rapid molecular diagnostic tools may reduce treatment delay and should be integrated into the diagnostic algorithm for pulmonary tuberculosis, particularly in elderly patients.
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Affiliation(s)
- Chih-Hsin Lee
- Division of Pulmonary Medicine, Department of Internal Medicine, Wanfang Hospital, Taipei Medical University, No. 111, Sec. 3, Hsing-Long Rd., Taipei, 116 Taiwan
- Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, No. 250, Wuxing St., Taipei, 110 Taiwan
| | - Jann-Yuan Wang
- Department of Internal Medicine, National Taiwan University Hospital, No.7, Chung Shan S. Rd., Taipei, 100 Taiwan
| | - Hsien-Chun Lin
- Division of Pulmonary Medicine, Department of Internal Medicine, Wanfang Hospital, Taipei Medical University, No. 111, Sec. 3, Hsing-Long Rd., Taipei, 116 Taiwan
| | - Pai-Yang Lin
- Division of Pulmonary Medicine, Department of Internal Medicine, Wanfang Hospital, Taipei Medical University, No. 111, Sec. 3, Hsing-Long Rd., Taipei, 116 Taiwan
| | - Jer-Hwa Chang
- Division of Pulmonary Medicine, Department of Internal Medicine, Wanfang Hospital, Taipei Medical University, No. 111, Sec. 3, Hsing-Long Rd., Taipei, 116 Taiwan
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, No. 250, Wuxing St., Taipei, 110 Taiwan
| | - Chi-Won Suk
- Division of Pulmonary Medicine, Department of Internal Medicine, Wanfang Hospital, Taipei Medical University, No. 111, Sec. 3, Hsing-Long Rd., Taipei, 116 Taiwan
| | - Li-Na Lee
- Department of Laboratory Medicine, National Taiwan University Hospital, No.7, Chung Shan S. Rd., Taipei, 100 Taiwan
| | - Chou-Chin Lan
- Division of Pulmonary Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, No. 289, Jianguo Rd., Xindian Dist, New Taipei, 231 Taiwan
- School of Medicine, Tzu Chi University, No.701, Sec. 3, Zhongyang Rd., Hualien, 970 Taiwan
| | - Kuan-Jen Bai
- Division of Pulmonary Medicine, Department of Internal Medicine, Wanfang Hospital, Taipei Medical University, No. 111, Sec. 3, Hsing-Long Rd., Taipei, 116 Taiwan
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, No. 250, Wuxing St., Taipei, 110 Taiwan
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Chen TB, Yiao SY, Sun Y, Lee HJ, Yang SC, Chiu MJ, Chen TF, Lin KN, Tang LY, Lin CC, Wang PN. Comorbidity and dementia: A nationwide survey in Taiwan. PLoS One 2017; 12:e0175475. [PMID: 28403222 PMCID: PMC5389824 DOI: 10.1371/journal.pone.0175475] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 03/14/2017] [Indexed: 01/16/2023] Open
Abstract
Background Comorbid medical diseases are highly prevalent in the geriatric population, imposing hardship on healthcare services for demented individuals. Dementia also complicates clinical care for other co-existing medical conditions. This study investigated the comorbidities associated with dementia in the elderly population aged 65 years and over in Taiwan. Methods We conducted a nationwide, population-based, cross-sectional survey; participants were selected by computerized random sampling from all 19 Taiwan counties between December 2011 and March 2013. After exclusion of incomplete or erroneous data, 8,456 subjects were enrolled. Of them, 6,183 were cognitively normal (control group), 1,576 had mild cognitive impairment (MCI), and 697 had dementia. We collected information about types of comorbidities (i.e., vascular risk factors, lung diseases, liver diseases, gastrointestinal diseases, and cancers), Charlson comorbidity index score, and demographic variables to compare subjects with normal cognition, MCI, and dementia. Results Regardless of the cognitive condition, over 60% of the individuals in each group had at least one comorbid disease. The proportion of subjects possessing at least three comorbidities was higher in those with cognitive impairment (MCI 20.9%, dementia 27.3%) than in control group (15%). Hypertension and diabetes mellitus were the most common comorbidities. The mean number of comorbidities and Charlson comorbidity index score were greater in MCI and dementia groups than in control group. Logistic regression demonstrated that the comorbidities significantly associated with MCI and dementia were cerebrovascular disease (OR 3.35, CI 2.62–4.28), cirrhosis (OR 3.29, CI 1.29–8.41), asthma (OR 1.56, CI 1.07–2.27), and diabetes mellitus (OR 1.24, CI 1.07–1.44). Conclusion Multiple medical comorbid diseases are common in older adults, especially in those with cognitive impairment. Cerebrovascular disease, cirrhosis, asthma, and diabetes mellitus are important contributors to cognitive deterioration in the elderly. Efforts to lower cumulative medical burden in the geriatric population may benefit cognitive function.
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Affiliation(s)
- Ting-Bin Chen
- Department of Neurology, Neurological Institute, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Szu-Yu Yiao
- Department of Biostatistics, Columbia University Mailman School of Public Health, New York, NY, United States of America
| | - Yu Sun
- Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
- Department of Neurology, En Chu Kong Hospital, New Taipei City, Taiwan
| | - Huey-Jane Lee
- Taiwan Alzheimer’s Disease Association, Taipei, Taiwan
| | | | - Ming-Jang Chiu
- Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
- Graduate Institute of Brain and Mind Sciences, College of Medicine, National Taiwan University, Taipei, Taiwan
- Graduate Institute of Psychology, College of Science, National Taiwan University, Taipei, Taiwan
| | - Ta-Fu Chen
- Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
| | - Ker-Neng Lin
- Department of Psychology, Soo-Chow University, Taipei, Taiwan
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Li-Yu Tang
- Taiwan Alzheimer’s Disease Association, Taipei, Taiwan
| | - Chung-Chih Lin
- Department of Computer Science and Information Engineering, Chung Gung University, Tao-Yuan, Taiwan
| | - Pei-Ning Wang
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
- Department of Neurology, National Yang-Ming University School of Medicine, Taipei, Taiwan
- Aging and Health Research Center, National Yang-Ming University, Taipei, Taiwan
- * E-mail:
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Huang WC, Chen HL, Chen HY, Peng KP, Lee Y, Huang LM, Chang LY, Liu FT. Galectin-3 and Its Genetic Variation rs4644 Modulate Enterovirus 71 Infection. PLoS One 2016; 11:e0168627. [PMID: 28002441 PMCID: PMC5176291 DOI: 10.1371/journal.pone.0168627] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 09/23/2016] [Accepted: 12/02/2016] [Indexed: 11/18/2022] Open
Abstract
Galectin-3, a chimeric type β-galactoside-binding protein, is known to modulate viral infection; however, its role in enterovirus 71 (EV71) infection has not been investigated. We generated galectin-3 null rhabdomyosarcoma (RD) cells and evaluated whether EV71 infection would be affected. In galectin-3 null cells, the released and intracellular EV71 viral loads were suppressed after 24 h of infection, and cell death rates were significantly lower, while cell proliferation remained unaltered. In addition, RD cells expressing a nonsynonymous genetic variant of galectin-3, rs4644 (LGALS3 +191C/A, P64H), produced lower virus titers than those with wild-type galectin-3 (C allele). To clarify whether the in vitro viral load reduction correlates with clinical severity, we enrolled children with laboratory-confirmed EV71 infection. Since hyperglycemia is an indicator of severe EV71 infection in children, 152 of 401 enrolled children had glucose examinations at admission, and 59 subjects had serum glucose levels ≥ 150 mg/dL. In comparison to the rs4644 AA genotype (2.2 ± 0.06 log10 mg/dL), serum glucose levels during EV71 infection were higher in patients with CC (2.4 ± 0.17 log10 mg/dL, p = 0.03) and CA (2.4 ± 0.15 log10 mg/dL, p = 0.02) genotypes, respectively. These findings suggest that the rs4644 AA genotype of galectin-3 might exert a protective effect. In summary, galectin-3 affects EV71 replication in our cellular model and its variant, rs4644, is associated with hyperglycemia in the clinical setting. The underlying mechanism and its potential therapeutic application warrant further investigation.
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Affiliation(s)
- Wen-Chan Huang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
- Department of Pediatrics, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei, Taiwan
- Ph.D. Program in Translational Medicine, National Taiwan University and Academia Sinica, Taipei, Taiwan
| | - Hung-Lin Chen
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Huan-Yuan Chen
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Kuan-Po Peng
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Yungling Lee
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
- Institute of Epidemiology and Preventive Medicine, National Taiwan University, Taipei, Taiwan
| | - Li-Min Huang
- Department of Pediatrics, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Luan-Yin Chang
- Department of Pediatrics, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei, Taiwan
- * E-mail: (FTL); (LYC)
| | - Fu-Tong Liu
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
- Department of Dermatology, University of California Davis, Sacramento, California, United States of America
- * E-mail: (FTL); (LYC)
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Wu WS, Chien CC, Chen YC, Chiu WT. Protein Kinase RNA-Like Endoplasmic Reticulum Kinase-Mediated Bcl-2 Protein Phosphorylation Contributes to Evodiamine-Induced Apoptosis of Human Renal Cell Carcinoma Cells. PLoS One 2016; 11:e0160484. [PMID: 27483435 PMCID: PMC4970736 DOI: 10.1371/journal.pone.0160484] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [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: 02/24/2016] [Accepted: 07/20/2016] [Indexed: 11/22/2022] Open
Abstract
We investigated the anticancer mechanism of evodiamine (EVO) against the viability of human A498 renal cell carcinoma (RCC) cells in vitro and in vivo. The in vitro study showed that EVO decreased the viability of A498 cells with the occurrence of apoptotic characteristics such as hypodiploid cells, DNA ladders, chromatin-condensed cells, and cleaved caspase (Casp)-3/poly(ADP ribose) polymerase (PARP) proteins. Pharmacological studies using chemical inhibitors of mitogen-activated protein kinase (MAPK) and phosphoinositide 3-kinase (PI3K) indicated that phosphorylation of the c-Jun N-terminal kinase (JNK) protein participated in EVO-induced cell death of A498 cells, and application of the JNK inhibitor, SP600125 (SP), inhibited EVO-induced cleavage of the Casp-3/PARP proteins and chromatin condensation according to Giemsa staining. EVO disruption of the mitochondrial membrane potential (MMP) with increased protein levels of the phosphorylated Bcl-2 protein (p-Bcl-2) was prevented by JNK inhibitors in A498 cells. A structure-activity relationship study showed that a methyl group at position 14 in EVO was important for its apoptotic effects and increased p-Bcl-2 protein in A498 cells. Furthermore, significant increases in the phosphorylated endoplasmic reticular stress protein, protein kinase RNA-like endoplasmic reticulum kinase (p-PERK at Thr980), by EVO were detected in A498 cells, and the PERK inhibitor, GSK2606414, significantly suppressed EVO-induced apoptosis, p-JNK, p-PERK, and cleaved PARP proteins. The in vivo study showed that EVO significantly reduced RCC growth elicited by a subcutaneous injection of A498 cells, and an increased protein level of p-PERK was observed according to an immunohistochemical analysis. Apoptosis by EVO was also demonstrated in other RCC cells such as 786-O, ACHN, and Caki-1 cells. This is the first study to demonstrate the anti-RCC effect of EVO via apoptosis in vitro and in vivo, and activation of JNK and PERK to induce Bcl-2 protein phosphorylation, which led to disruption of the MMP.
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Affiliation(s)
- Wen-Shin Wu
- Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, 110, Taiwan
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan
| | - Chih-Chiang Chien
- Department of Nephrology, Chi-Mei Medical Center, Tainan, Taiwan
- Department of Food Nutrition, Chung Hwa University of Medical Technology, Tainan, Taiwan
| | - Yen-Chou Chen
- Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, 110, Taiwan
- Cancer Research Center and Orthopedics Research Center, Taipei Medical University Hospital, Taipei, 110, Taiwan
- * E-mail:
| | - Wen-Ta Chiu
- Department of Neurosurgery, Taipei Municipal Wan-Fang Hospital and Graduate Institute of Clinical Medicine, Taipei Medical University, Taipei, 110, Taiwan
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Wen LL, Lin CY, Chou HC, Chang CC, Lo HY, Juan SH. Perfluorooctanesulfonate Mediates Renal Tubular Cell Apoptosis through PPARgamma Inactivation. PLoS One 2016; 11:e0155190. [PMID: 27171144 PMCID: PMC4865156 DOI: 10.1371/journal.pone.0155190] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [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: 03/15/2016] [Accepted: 04/25/2016] [Indexed: 01/12/2023] Open
Abstract
Perfluorinated chemicals (PFCs) are ubiquitously distributed in the environments including stainless pan-coating, raincoat, fire extinguisher, and semiconductor products. The PPAR family has been shown to contribute to the toxic effects of PFCs in thymus, immune and excretory systems. Herein, we demonstrated that perfluorooctanesulfonate (PFOS) caused cell apoptosis through increasing ratio of Bcl-xS/xL, cytosolic cytochrome C, and caspase 3 activation in renal tubular cells (RTCs). In addition, PFOS increased transcription of inflammatory cytokines (i.e., TNFα, ICAM1, and MCP1) by NFκB activation. Conversely, PFOS reduced the mRNA levels of antioxidative enzymes, such as glutathione peroxidase, catalase, and superoxide dismutase, as a result of reduced PPARγ transactivational activity by using reporter and chromatin immuoprecipitation (ChIP) assays. PFOS reduced the protein interaction between PPARγ and PPARγ coactivator-1 alpha (PGC1α) by PPARγ deacetylation through Sirt1 upregulation, of which the binding of PPARγ and PGC1α to a peroxisome proliferator response element (PPRE) in the promoter regions of these antioxidative enzymes was alleviated in the ChIP assay. Furthermore, Sirt1 also deacetylated p53 and then increased the binding of p53 to Bax, resulting in increased cytosolic cytochrome C. The effect of PPARγ inactivation by PFOS was validated using the PPARγ antagonist GW9662, whereas the adverse effects of PFOS were prevented by PPARγ overexpression and activators, rosiglitozone and L-carnitine, in RTCs. The in vitro finding of protective effect of L-carnitine was substantiated in vivo using Balb/c mice model subjected to PFOS challenge. Altogether, we provide in vivo and in vitro evidence for the protective mechanism of L-carnitine in eliminating PFOS-mediated renal injury, at least partially, through PPARγ activation.
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Affiliation(s)
- Li-Li Wen
- Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan
- Department of Clinical Laboratory, En Chu Kong Hospital, New Taipei City, Taiwan
- Department of Medical Laboratory Science and Biotechnology, Yuanpei University, Hsinchu, Taiwan
| | - Chien-Yu Lin
- Department of Internal Medicine, En Chu Kong Hospital, New Taipei City, Taiwan
- School of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Hsiu-Chu Chou
- Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan
- Department of Anatomy and Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chih-Cheng Chang
- Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan
- Department of Physiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hau-Yin Lo
- Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan
- Department of Physiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Shu-Hui Juan
- Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan
- Department of Physiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- * E-mail:
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Yeh SY, Chen HW, Ng CY, Lin CY, Tseng TH, Li WH, Ku MSB. Down-Regulation of Cytokinin Oxidase 2 Expression Increases Tiller Number and Improves Rice Yield. Rice (N Y) 2015; 8:36. [PMID: 26643073 PMCID: PMC4671980 DOI: 10.1186/s12284-015-0070-5] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Accepted: 11/29/2015] [Indexed: 05/20/2023]
Abstract
BACKGROUND Cytokinins are plant-specific hormones that affect plant growth and development. The endogenous level of cytokinins in plant cells is regulated in part by irreversible degradation via cytokinin oxidase/dehydrogenase (CKX). Among the 11 rice CKXs, CKX2 has been implicated in regulation of rice grain yield. RESULTS To specifically down-regulate OsCKX2 expression, we have chosen two conserved glycosylation regions of OsCKX2 for designing artificial short hairpin RNA interference genes (shRNA-CX3 and -CX5, representing the 5' and 3' glycosylation region sequences, respectively) for transformation by the Agrobacterium-mediated method. For each construct, 5 independent transgenic lines were obtained for detailed analysis. Southern blot analysis confirmed the integration of the shRNA genes into the rice genome, and quantitative real time RT-PCR and northern blot analyses showed reduced OsCKX2 expression in the young stem of transgenic rice at varying degrees. However, the expression of other rice CKX genes, such as CKX1 and CKX3, in these transgenic lines was not altered. Transgenic rice plants grown in the greenhouse were greener and more vigorous with delayed senescence, compared to the wild type. In field experiments, both CX3 and CX5 transgenic rice plants produced more tillers (27-81 %) and grains (24-67 %) per plant and had a heavier 1000 grain weight (5-15 %) than the wild type. The increases in grain yield were highly correlated with increased tiller numbers. Consistently, insertional activation of OsCKX2 led to increased expression of CKX2 and reduced tiller number and growth in a gene-dosage dependant manner. CONCLUSIONS Taken together, these results demonstrate that specific suppression of OsCKX2 expression through shRNA-mediated gene silencing leads to enhanced growth and productivity in rice by increasing tiller number and grain weight.
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Affiliation(s)
- Su-Ying Yeh
- Biodiversity Research Center and Genome Research Center, Academia Sinica, Taipei, 115, Taiwan
| | - Hau-Wen Chen
- Department of Bioagricultural Science, National Chiayi University, Chiayi, 600, Taiwan
| | - Chun-Yeung Ng
- Biodiversity Research Center and Genome Research Center, Academia Sinica, Taipei, 115, Taiwan
| | - Chu-Yin Lin
- Biodiversity Research Center and Genome Research Center, Academia Sinica, Taipei, 115, Taiwan
| | - Tung-Hai Tseng
- Division of Biotechnology, Taiwan Agricultural Research Institute, Taichung, 413, Taiwan
| | - Wen-Hsiung Li
- Biodiversity Research Center and Genome Research Center, Academia Sinica, Taipei, 115, Taiwan
- Department of Ecology and Evolution, University of Chicago, Chicago, IL, 60637, USA
| | - Maurice S B Ku
- Department of Bioagricultural Science, National Chiayi University, Chiayi, 600, Taiwan.
- School of Biological Sciences, Washington State University, Pullman, WA, 99164, USA.
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