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Tan S, Nikolarakos D. Subcutaneous emphysema secondary to dental extraction: A case report. Aust Dent J 2017; 62:95-97. [PMID: 27739083 DOI: 10.1111/adj.12464] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2016] [Indexed: 11/30/2022]
Abstract
Although less frequently encountered in dental practices, subcutaneous emphysema of the face and neck has been reported in patients following dental extractions, particularly when lower molar teeth are extracted with the use of a high-speed air-turbine drill designed for restorative treatment, which forces air into the cervical fascial spaces. As facial swelling and pain are the most common presentations, subcutaneous emphysema can often be misdiagnosed as an allergic reaction or odontogenic infection. While usually a benign and self-limiting condition, subcutaneous emphysema may have life-threatening complications such as tension pneumothorax, cardiac tamponade, air embolism, tracheal compression and mediastinitis, which are important to recognize in an emergency setting. Dentists should be aware of the serious risks of inducing subcutaneous emphysema and avoid performing tooth extractions with high-speed air-turbine drills which are specifically designed for use for restorative treatments only.
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Rashid H, Velusamy R, Be K, Talman A, Amiruddin A, Koh Y, Tan S, Ihdayhid A, Nerlekar N, McCormick L, Meredith I, Gooley R. Investigating the Impact of Aorto-Ventricular Angulation on Procedural Success in Transcatheter Aortic Valve Replacements with the Lotus Valve System. Heart Lung Circ 2017. [DOI: 10.1016/j.hlc.2017.06.389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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128
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Thein P, Ong J, Crozier T, Nasis A, Mirzaee S, Tan S, Junckerstorff R. Impact of New Onset In-hospital Atrial Fibrillation on Length of Stay and Mortality. Heart Lung Circ 2017. [DOI: 10.1016/j.hlc.2017.06.284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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129
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Rashid H, Be K, Velusamy R, Talman A, Koh Y, Amiruddin A, Tan S, Ihdayhid A, McCormick L, Nasis A, Meredith I, Gooley R. Next-Generation Transcatheter Aortic Valve Replacement (TAVR) Clinical Outcomes in Low-Intermediate Risk Patients: Large Single-Centre Experience. Heart Lung Circ 2017. [DOI: 10.1016/j.hlc.2017.06.400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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130
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Loh WL, Tan S, Ngooi MS, Ong ZK, Ngoi SS. Endoscopic monopolar coagulation of internal haemorrhoids: a surgeon's experience of the first 100 cases. Colorectal Dis 2017; 19:O86-O89. [PMID: 27943513 DOI: 10.1111/codi.13576] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 06/29/2016] [Indexed: 12/13/2022]
Abstract
AIM The purpose of this study was to evaluate one surgeon's initial experience with a novel technique of retroflexed endoscopic coagulation of internal haemorrhoids. METHOD Patients who presented with symptoms and signs indicating Grade II-III haemorrhoids were counselled before the procedure. Those who were assessed to require an examination of their colon, based on their age and symptoms, underwent a full colonoscopy before treatment of the haemorrhoids. After the procedure, patients were routinely prescribed nonsteroidal anti-inflammatory drugs, antibiotics and laxatives. RESULTS The first 100 patients of median age 52.0 (20.8-78.5) years included 65 (65%) women. Five (5%) patients suffered from postprocedural complications, of which three (3%) were postprocedural bleeding and two (2%) were postprocedural pain, all treated conservatively. The recurrence rate was 6% at a median follow-up time of 36 (6-76) months. The median duration of follow-up was 36.5 (8.5-57.0) months. CONCLUSION This novel technique appears to be safe and effective for the treatment of Grade II-III internal haemorrhoids, and can be incorporated seamlessly into the end of a colonoscopy for the evaluation of haematochezia. Comparative trials should be performed.
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Moawad A, Tan S, Taketo T. Beneficial effects of glutathione supplement during vitrification of mouse oocytes at the germinal vesicle stage on their preimplantation development following maturation and fertilization in vitro. Cryobiology 2016. [DOI: 10.1016/j.cryobiol.2016.09.122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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132
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Hudry E, Martin C, Gandhi S, György B, Scheffer DI, Mu D, Merkel SF, Mingozzi F, Fitzpatrick Z, Dimant H, Masek M, Ragan T, Tan S, Brisson AR, Ramirez SH, Hyman BT, Maguire CA. Exosome-associated AAV vector as a robust and convenient neuroscience tool. Gene Ther 2016; 23:819. [PMID: 27808124 DOI: 10.1038/gt.2016.65] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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133
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Loh YS, Tan S, Kwok M, Stark MJ, Marks DC. Reduction of biological response modifiers in the supernatant of washed paediatric red blood cells. Vox Sang 2016; 111:365-373. [PMID: 27864978 DOI: 10.1111/vox.12442] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 06/01/2016] [Accepted: 07/07/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND Washing of red blood cells (RBC) can reduce unwanted biological response modifiers (BRMs) that can mediate transfusion complications in infants. The aim of this study was to examine the in vitro quality and the changes in BRMs following washing in paediatric RBC units. MATERIALS AND METHODS A pool and split design was used to prepare RBC (either 1 or 4 days old; n = 26 pairs). One unit was washed with 0·9% saline by centrifugation and then resuspended in SAG-M, while the other remained unwashed. Each RBC unit was divided to produce four units of paediatric-sized components. Samples were taken after 3 h and subsequently on days 1, 2, 7 and 14 post-wash. RESULTS Washing of RBC resulted in some red cell loss, with a minor increase in haemolysis. Washing effectively reduced supernatant potassium and IgA, as well as cytokines and complement proteins. RBC microparticles were significantly reduced in RBC washed at 1, but not 4 days post-collection. Incubation with supernatant from unwashed but not washed RBC led to endothelial cell activation, with increased cell surface expression of CD62E (E-selectin) and CD106 (VCAM). CONCLUSION Although washing affected some aspects of the in vitro quality of RBC, it effectively reduced the concentration and activity of BRMs in the supernatant of RBC. Such a reduction may be clinically beneficial in selected patient groups.
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Zhang H, Molitoris J, Tan S, Giacomelli I, Scartoni D, Gzell C, Bhooshan N, Choi W, Lu W, D'Souza W, Mehta M. Radiomics for Survival Analysis and Prediction in Glioblastoma (GBM)—A Preliminary Study. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.860] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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135
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Vrijhoef B, Tan S, Wong T, Nurjono M. ISQUA16-3108IMPROVEMENT SCIENCE TO EVALUATE PERSON-CENTRED AND INTEGRATED CARE: AN INTERNATIONAL COMPARISON. Int J Qual Health Care 2016. [DOI: 10.1093/intqhc/mzw104.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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136
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Tan S, Chen C, Hsieh C, Chen C, Tzeng C. Higher prediction rates of endometriosis by risk factor analysis from clinical symptoms and signs. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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137
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Tan S, Wu G, Yu C, Zhuang Q, Xi Q, Meng Q, Jiang Y, Han Y, Yu Z, Li N. OR38: High-Fat Enteral Nutrition Improves Intestinal Muscularis Energy Metabolism for Postoperative Ileus. Clin Nutr 2016. [DOI: 10.1016/s0261-5614(16)30277-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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138
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Tan S, Yu C, Wu G, Zhuang Q, Xi Q, Meng Q, Jiang Y, Han Y, Yu W, Yu Z, Li N. MON-P242: Early Enteral Nutrition for Patients After Pancreaticoduodenectomy, A Meta-Analysis Of Randomized Controlled Trials. Clin Nutr 2016. [DOI: 10.1016/s0261-5614(16)30876-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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139
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Dahan M, Hatirnaz E, Tan S, Ata B, Ozer A, Kanat-Pektas M, Hatirnaz S. Predictors of pregnancy outcomes in women with polycystic ovary syndrome who performed in-vitro maturation (IVM) of oocytes. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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140
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Jin Y, Zhou T, Geng X, Liu S, Chen A, Yao J, Jiang C, Tan S, Su B, Liu Z. A genome-wide association study of heat stress-associated SNPs in catfish. Anim Genet 2016; 48:233-236. [PMID: 27476875 DOI: 10.1111/age.12482] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/30/2016] [Indexed: 10/21/2022]
Abstract
Heat tolerance is a complex and economically important trait for catfish genetic breeding programs. With global climate change, it is becoming an increasingly important trait. To better understand the molecular basis of heat stress, a genome-wide association study (GWAS) was carried out using the 250 K catfish SNP array with interspecific backcross progenies, which derived from crossing female channel catfish with male F1 hybrid catfish (female channel catfish × male blue catfish). Three significant associated SNPs were detected by performing an EMMAX approach for GWAS. The SNP located on linkage group 14 explained 12.1% of phenotypical variation. The other two SNPs, located on linkage group 16, explained 11.3 and 11.5% of phenotypical variation respectively. A total of 14 genes with heat stress related functions were detected within the significant associated regions. Among them, five genes-TRAF2, FBXW5, ANAPC2, UBR1 and KLHL29- have known functions in the protein degradation process through the ubiquitination pathway. Other genes related to heat stress include genes involved in protein biosynthesis (PRPF4 and SYNCRIP), protein folding (DNAJC25), molecule and iron transport (SLC25A46 and CLIC5), cytoskeletal reorganization (COL12A1) and energy metabolism (COX7A2, PLCB1 and PLCB4) processes. The results provide fundamental information about genes and pathways that is useful for further investigation into the molecular mechanisms of heat stress. The associated SNPs could be promising candidates for selecting heat-tolerant catfish lines after validating their effects on larger and various catfish populations.
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Abstract
In the abrupt vertical deceleration that occurs on impact after a free fall, tissue damage is caused by the absorption by the body of the energy accumulated during the free fall. Patients sustain a unique injury pattern that is predicatably different from that seen with other forms of blunt multiple trauma. The present paper reviews the pathophysiology and pattern of injury sustained following free fall.
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Riyahi S, Choi W, Bhooshan N, Tan S, Zhang H, Lu W. SU-C-207B-06: Comparison of Registration Methods for Modeling Pathologic Response of Esophageal Cancer to Chemoradiation Therapy. Med Phys 2016. [DOI: 10.1118/1.4955602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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143
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Zhang H, Molitoris J, Tan S, Giacomelli I, Scartoni D, Gzell C, Bhooshan N, Choi W, Lu W, Mehta M, D'Souza W. SU-F-R-04: Radiomics for Survival Prediction in Glioblastoma (GBM). Med Phys 2016. [DOI: 10.1118/1.4955776] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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144
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Hak S, Shamsul S, Tan S, Khalil A, Kamarul T. Treatment Using Bone Marrow Stromal Cells Produces Minimal Scar Tissue and Superior Tissue Regeneration in Deep Partial Thickness Burn Wounds: An in Vivo Study. Cytotherapy 2016. [DOI: 10.1016/j.jcyt.2016.03.129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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145
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Li L, Lu W, Tan S. TU-H-CAMPUS-IeP3-01: Simultaneous PET Restoration and PET/CT Co-Segmentation Using a Variational Method. Med Phys 2016. [DOI: 10.1118/1.4957694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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146
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Shi Q, Cheng P, Wang J, Tan S, Tan S. MO-FG-CAMPUS-IeP2-04: Multiple Penalties with Different Orders for Structure Adaptive CBCT Reconstruction. Med Phys 2016. [DOI: 10.1118/1.4957352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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147
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Zhan Y, Xu C, Liu Z, Yang Y, Tan S, Yang Y, Jiang J, Liu H, Chen J, Wu B. β-Arrestin1 inhibits chemotherapy-induced intestinal stem cell apoptosis and mucositis. Cell Death Dis 2016; 7:e2229. [PMID: 27195676 PMCID: PMC4917667 DOI: 10.1038/cddis.2016.136] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 04/19/2016] [Accepted: 04/20/2016] [Indexed: 02/07/2023]
Abstract
The mechanism of chemotherapy-induced gastrointestinal (GI) syndrome (CIGIS) is still controversial, and it is unclear whether chemotherapy induces intestinal stem cell (ISC) apoptosis. β-Arrestins are regulators and mediators of G protein-coupled receptor signaling in cell apoptosis, division and growth. In this study, we aimed to investigate whether chemotherapy induces ISC apoptosis to contribute to mucositis in CIGIS and whether β-arrestin1 (β-arr1) is involved in this apoptosis. Different chemotherapeutic agents were used to generate a CIGIS model. Lgr5-EGFP-IRES-creERT2+/− knock-in mice were used as a CIGIS model to investigate ISC apoptosis. β-arr1 knockout mice were used to determine whether β-arr1 is involved in the apoptosis in CIGIS. Intestinal histology was performed, the ISC apoptosis was analyzed and the mucosal barrier was examined. The effects of β-arr1 in apoptosis were investigated in the samples from humans and mice as well as in cell lines. Here, we demonstrate that chemotherapy induced intestinal mucositis by promoting crypt cell apoptosis, especially in Lgr5+ stem cells and Paneth cells but not in goblet cells, epithelial cells or vascular endothelial cells. Furthermore, β-arr1 deficiency exacerbated the Lgr5+ stem cell apoptosis, but not Paneth cell apoptosis, in CIGIS. In addition, the data showed that β-arr1 reduced the chemotherapy-induced Lgr5+ stem cell apoptosis by inhibiting endoplasmic reticulum stress-mediated mitochondrial apoptotic signaling. Our study indicates that β-arr1 inhibits chemotherapy-induced ISC apoptosis to alleviate intestinal mucositis in CIGIS.
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Liu Z, Tian H, Jiang J, Yang Y, Tan S, Lin X, Liu H, Wu B. β-Arrestin-2 modulates radiation-induced intestinal crypt progenitor/stem cell injury. Cell Death Differ 2016; 23:1529-41. [PMID: 27128598 PMCID: PMC5072429 DOI: 10.1038/cdd.2016.38] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2015] [Revised: 03/14/2016] [Accepted: 03/21/2016] [Indexed: 12/24/2022] Open
Abstract
Intestinal crypt progenitor/stem (ICPS) cell apoptosis and vascular endothelial cell apoptosis are responsible for the initiation and development of ionizing radiation (IR)-evoked gastrointestinal syndrome. The signaling mechanisms underlying IR-induced ICPS cell apoptosis remain largely unclear. Our findings provide evidence that β-arrestin-2 (βarr2)-mediated ICPS cell apoptosis is crucial for IR-stimulated intestinal injury. βArr2-deficient mice exhibited decreased ICPS cell and intestinal Lgr5+ (leucine-rich repeat-containing G-protein-coupled receptor 5-positive) stem cell apoptosis, promoted crypt proliferation and reproduction, and protracted survival following lethal doses of radiation. Radioprotection in the ICPS cells isolated from βarr2-deficient mice depended on prolonged nuclear factor-κB (NF-κB) activation via direct interaction of βarr2 with IκBα and subsequent inhibition of p53-upregulated modulator of apoptosis (PUMA)-mediated mitochondrial dysfunction. Unexpectedly, βarr2 deficiency had little effect on IR-induced intestinal vascular endothelial cell apoptosis in mice. Consistently, βarr2 knockdown also provided significant radioresistance by manipulating NF-κB/PUMA signaling in Lgr5+ cells in vitro. Collectively, these observations show that targeting the βarr2/NF-κB/PUMA novel pathway is a potential radiomitigator for limiting the damaging effect of radiotherapy on the gastrointestinal system. Significance statement: acute injury to the intestinal mucosa is a major dose-limiting complication of abdominal radiotherapy. The issue of whether the critical factor for the initiation of radiation-induced intestinal injury is intestinal stem cell apoptosis or endothelial cell apoptosis remains unresolved. βArrs have recently been found to be multifunctional adaptor of apoptosis. Here, we found that β-arrestin-2 (βarr2) deficiency was associated with decreased radiation-induced ICPS cell apoptosis, which prolonged survival in abdominally irradiated mice. Moreover, βarr2 deficiency-mediated intestinal progenitor/stem cell radioprotection relied on protracted NF-κB activation and subsequent suppression of PUMA induction. Our results suggest that ICPS cell apoptosis is the factor involved in the initiation and development of radiation-induced gastrointestinal syndrome. βArr2 is a potential target for lessening radiation-induced ICPS cell apoptosis.
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Gogna A, Chong C, Irani F, Tay K, Lo R, Chan S, Damodharan K, Kumar N, Patel A, Tan S, Siew Ping C, Tan B. Randomized controlled trial comparing standard balloon angioplasty, placement of drug-eluting stent versus stent graft for the treatment of cephalic arch stenosis in patients with hemodialysis access stenoses. J Vasc Interv Radiol 2016. [DOI: 10.1016/j.jvir.2015.12.366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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150
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Fu Q, Xie K, Tan S, Ren JM, Zhao Q, Webley PA, Qiao GG. The use of reduced copper metal–organic frameworks to facilitate CuAAC click chemistry. Chem Commun (Camb) 2016; 52:12226-12229. [DOI: 10.1039/c6cc06890a] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A reduced copper metal–organic framework (rCu-MOF) containing CuI ions was prepared and employed as a catalyst for ‘Click’ reactions. The rCu-MOF presents higher catalytic activity, good structural stability as well as facile recyclability compared to traditional copper halide catalysts.
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