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Reddy S, Brothers K, Quave CL, Chen SC. Altering Perceptions of Scientists among Fifth Graders by the Introduction of Female Role Models: A New Opportunity for Dermatologists? J Invest Dermatol 2018; 139:723-724. [PMID: 30342049 DOI: 10.1016/j.jid.2018.09.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 09/12/2018] [Accepted: 09/17/2018] [Indexed: 11/28/2022]
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Zeidler C, Steinke S, Riepe C, Bruland P, Soto-Rey I, Storck M, Garcovich S, Blome C, Bobko S, Legat FJ, Potekaev N, Lvov A, Misery L, Weger W, Reich A, Şavk E, Streit M, Serra-Baldrich E, Szepietowski JC, Yosipovitch G, Chen SC, Dugas M, Ständer S. Cross-European validation of the ItchyQoL in pruritic dermatoses. J Eur Acad Dermatol Venereol 2018; 33:391-397. [PMID: 30193410 DOI: 10.1111/jdv.15225] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 07/26/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND Chronic pruritus (CP) is a frequently occurring symptom in inflammatory dermatoses, causing a high burden and limitations to health-related quality of life (HRQoL). OBJECTIVE The ItchyQoL was developed to assess the impairment to HRQoL in patients with CP. However, it has only been validated in English and German. Here, we report the validation in several languages across Europe. METHODS After professional translation, the versions of ItchyQoL were digitized for use as a tablet application. Validation was performed in clinics for dermatology in Austria, France, Germany, Italy, Poland, Russia, Spain, Switzerland and Turkey. RESULTS Five hundred and thirty-five patients with either contact dermatitis, chronic prurigo - nodular type, psoriasis vulgaris, lichen planus or mycosis fungoides/Sézary syndrome and with CP ≥ 3 on the numerical rating scale were included. ItchyQoL showed a high level of consistency (Cronbach's-α, all: 0.95) and test-retest reliability (intraclass correlation: 0.91). It strongly correlated with the Dermatology Life Quality Index (r = 0.72, P < 0.001) and moderately correlated with itch intensity scales in the study population (visual analogue scale r = 0.46; numerical rating scale r = 0.51; verbal rating scale r = 0.51, for all: P < 0.001). CONCLUSION ItchyQoL is now also validated in French, Italian, Polish, Russian, Spanish and Turkish and can be used in clinical trials in countries speaking these languages.
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Chen SC, Lin WH, Chien CC, Tsang DCW, Kao CM. Development of a two-stage biotransformation system for mercury-contaminated soil remediation. CHEMOSPHERE 2018; 200:266-273. [PMID: 29494907 DOI: 10.1016/j.chemosphere.2018.02.085] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 02/13/2018] [Accepted: 02/14/2018] [Indexed: 06/08/2023]
Abstract
Utilization of bacterial volatilization can be problematic to remediate mercury (Hg)-contaminated soils because most of the Hg in soils is bound to soil particles. The objective of this study was to develop a two-stage system (chemical extraction followed by microbial reduction) for Hg-contaminated soil remediation. The tasks were to (1) select the extraction reagents for Hg extraction, (2) assess the effects of extraction reagents on the growth of Hg-reducing bacterial strains, and (3) evaluate the effectiveness of Ca2+ and Mg2+ addition on merA gene (Hg reductase) induction. Bacterial inhibition was observed with the addition of 0.1 M ethylenediaminetetraacetic acid or citric acid. Up to 65% of Hg was biotransformed (Hg concentration = 69 mg/kg) from the soils after a 24 h extraction using 0.5 M ammonium thiosulfate. Ca2+ and Mg2+ were selected because they have the same electric charge as Hg and the studied groundwater contained high concentrations of Ca2+ and Mg2+. Results showed that the addition of 200 mg/L Ca2+ or 650 mg/L Mg2+ could reach effective merA induction. In the two-stage experiment, 120 mg/kg Hg-contaminated soils were extracted with 2 rounds of extraction processes for 10 h using 0.5 M ammonium thiosulfate. Approximately 77% of Hg was extracted from the soils after the first-step extraction process. Up to 81% of Hg2+ was transformed from the washing solution via the biotransformation processes with Enterobacter cloacae addition and Ca2+ and Mg2+ supplementation. The two-stage remedial system has the potential to be developed into a practical technology to remediate Hg-contaminated sites.
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Nagase T, Stefano SB, Perrotta LP, Bologna FB, Chen SC, Chun JC, Schmidt BS. P827Left atrial low voltage areas predict the outcome after laser balloon pulmonary vein isolation. Europace 2018. [DOI: 10.1093/europace/euy015.431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Nagase T, Bordignon SB, Perrotta LP, Bologna FB, Chen SC, Konstantinou AK, Chun JC, Schmidt BS. P908Initial experience of pulmonary vein isolation for atrial fibrillation with the new generation laser balloon: Excalibur. Europace 2018. [DOI: 10.1093/europace/euy015.509] [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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Patel A, Ryan JF, Badrinath K, Chen SC. Squamous Cell Carcinoma of the toe Masquerading as Osteomyelitis. J R Soc Med 2018; 81:418-20. [PMID: 3411591 PMCID: PMC1291678 DOI: 10.1177/014107688808100721] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Huang LM, Hu LX, Yu H, Chen SC, Huang CP, Liu H. [Field epidemiological investigation on a foodborne outbreak caused by Staphylococcus aureus enterotoxin, in Hangzhou, 2014]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 2017; 38:1642-1644. [PMID: 29294579 DOI: 10.3760/cma.j.issn.0254-6450.2017.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective: To identify the cause on a foodborne breakout in a university of Hangzhou in 2014. Methods: Data on cases were gathered from the out-patient logs of the university affiliated or neighboring hospitals to describe the disease distribution and epidemiological curves. Case-control and field studies on hazard factors were conducted simultaneously. Results: The incubation period was 1.5-5.0 hours, of which the median was 3 during the outbreak. All the cases consumed food from a restaurant called Chen's Snacks nearby their university and suffered from the Staphylococcus aureus enterotoxin. Results from the Staphylococcus enterotoxin testing were positive in 3 stool and 6 food samples, out of the total 18 samples. Conclusion: This foodborne outbreak was caused through food poisoning by vermicelli which was contaminated with Staphylococcus aureus.
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Chen DH, Zheng HL, Zhang CY, Li M, Liu F, Zhu MH, Chen SC. [Coblation and silicon stent implantation for recurrent laryngeal papilloma with extensive lesions]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2017; 31:1711-1715. [PMID: 29798181 DOI: 10.13201/j.issn.1001-1781.2017.22.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Indexed: 11/12/2022]
Abstract
Objective:To evaluate the feasibility and long-term outcome of radiofrequency coblation combined with silicon stent implantation in the treatment of recurrent laryngeal papilloma with extensive lesions. Method:From March 2009 to April 2016, a total of 13 patients (8 males, 5 females; aged 28-67 years) who suffered recurrent laryngeal papilloma were enrolled in this retrospective study. All the cases had undergone at least one operation at other hospitals before this hospitalization. The recurrence interval (RI) of these cases ranged from 2 to 6 months. Video-laryngoscopy or stroboscopy were preformed preoperatively and postoperatively, as well as vocal function assessment. These cases underwent radiofrequency coblationin combination of different stent implantation (member, 7 cases; tube, 4 cases; T-shaped tube, 2 cases) under general anesthesia. The follow-up was 12 to 76 months. Result:Laryngoscopy revealed that the lesions mainly located in the vocal folds, anterior commissure, ventricular band, posterior commissure, epiglottis and even in subglottic area. Varying extent of mucosal adhesion of anterior or/and posterior commissure were observed in all cases, and two cases suffered mild subglottic tracheal stenosis. Two to six weeks after surgery, the silicon stent were removed and no mucosal adhesion were found except for 2 cases who suffered mucosal adhesion of anterior commissure again. Compared to preoperative scores, VHI-10 and G scores showed the significant improvement of voice quality postoperatively in all cases. The recurrence of papilloma was observed in 3 cases during 1-year follow-up, and 4 cases during 2-year follow-up, no recurrence in 6 cases. These recurrence lesions mainly located in ventricular band, subglottic area and trachea. However, no recurrence occurred in these cases who received ablation again. No serious complications were observed in these cases. Conclusion:Radiofrequency ablation may be an effective approach in the treatment of recurrent laryngeal papilloma with extensive lesions. One-stage application of suitable silicon stents can effectively prevent the adhesion of the wound and the onset oflaryngo-tracheal stenosis, and improve the quality of voice.
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Arkadopoulos N, Chen SC, Khalili TM, Detry O, Hewitt WR, Lilja H, Kamachi H, Petrovic L, Mullon CJ, Demetriou AA, Rozga J. Transplantation of Hepatocytes for Prevention of Intracranial Hypertension in Pigs with Ischemic Liver Failure. Cell Transplant 2017; 7:357-63. [PMID: 9710304 DOI: 10.1177/096368979800700403] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Intracranial hypertension leading to brain stem herniation is a major cause of death in fulminant hepatic failure (FHF). Mannitol, barbiturates, and hyperventilation have been used to treat brain swelling, but most patients are either refractory to medical management or cannot be treated because of concurrent medical problems or side effects. In this study, we examined whether allogeneic hepatocellular transplantation may prevent development of intracranial hypertension in pigs with experimentally induced liver failure. Of the two preparations tested—total hepatectomy (n = 47), and liver devascularization (n = 16)—only pigs with liver ischemia developed brain edema provided, however, that animals were maintained normothermic throughout the postoperative period. This model was then used in transplantation studies, in which six pigs received intrasplenic injection of allogeneic hepatocytes (2.5 × 109 cells/pig) and 3 days later acute liver failure was induced. In both models (anhepatic state, liver devascularization), pigs allowed to become hypothermic had significantly longer survival compared to those maintained normothermic. Normothermic pigs with liver ischemia had, at all time points studied, ICP greater than 20 mmHg. Pigs that received hepatocellular transplants had ICP below 15 mmHg until death; at the same time, cerebral perfusion pressure (CPP) in transplanted pigs was consistently higher than in controls (45 ± 11 mmHg vs. 16 ± 18 mmHg; p < 0.05). Spleens of transplanted pigs contained clusters of viable hepatocytes (hematoxylin-eosin, CAM 5.2). It was concluded that removal of the liver does not result in intracranial hypertension; hypothermia prolongs survival time in both anhepatic pigs and pigs with liver devascularization, and intrasplenic transplantation of allogeneic hepatocytes prevents development of intracranial hypertension in pigs with acute ischemic liver failure.
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Chen SC, Brooks R, Houskeeper J, Bremner SK, Dunlop J, Viollet B, Logan PJ, Salt IP, Ahmed SF, Yarwood SJ. Corrigendum to "Metformin suppresses adipogenesis through both AMP-activated protein kinase (AMPK)-dependent and AMPK-independent mechanisms" [Mol. Cell. Endocrinol. 440 15 January 2017 57-68]. Mol Cell Endocrinol 2017; 443:176. [PMID: 28183460 PMCID: PMC6854454 DOI: 10.1016/j.mce.2017.01.049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Wang SY, Chen SC, Lin YC, Kuo YC, Chen JY, Kao CM. Acidification and sulfide formation control during reductive dechlorination of 1,2-dichloroethane in groundwater: Effectiveness and mechanistic study. CHEMOSPHERE 2016; 160:216-229. [PMID: 27376861 DOI: 10.1016/j.chemosphere.2016.06.066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 03/21/2016] [Accepted: 06/17/2016] [Indexed: 06/06/2023]
Abstract
To enhance the reductive dechlorination of 1,2-dichloroethane (DCA) in groundwater, substrate injection may be required. However, substrate biodegradation causes groundwater acidification and sulfide production, which inhibits the bacteria responsible for DCA dechlorination and results in an odor problem. In the microcosm study, the effectiveness of the addition of ferrous sulfate (FS), desulfurization slag (DS), and nanoscale zero-valent iron (nZVI) on acidification and sulfide control was studied during reductive dechlorination of DCA, and the emulsified substrate (ES) was used as the substrate. Up to 94% of the sulfide was removed with FS and DS addition (0.25 wt%) (initial DCA concentration = 13.5 mg/L). FS and DS amendments resulted in the formation of a metal sulfide, which reduced the hydrogen sulfide concentration as well as the subsequent odor problem. Approximately 96% of the DCA was degraded under reductive dechlorination with nZVI or DS addition using ES as the substrate. In microcosms with nZVI or DS addition, the sulfide concentration was reduced to less than 15 μg/L. Acidification can be controlled via hydroxide ions production after nZVI oxidation and reaction of free CaO (released from DS) with water, which enhanced DCA dechlorination. The quantitative polymerase chain reaction results confirmed that the microcosms with nZVI added had the highest Dehalococcoides population (up to 2.5 × 10(8) gene copies/g soil) due to effective acidification control. The α-elimination mechanism was the main abiotic process, and reductive dechlorination dominated by Dehalococcides was the biotic mechanism that resulted in DCA removal. More than 22 bacterial species were detected, and dechlorinating bacteria existed in soils under alkaline and acidic conditions.
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Gao YN, Zheng HL, Zhang CY, Chen SC, Li M, Chen DH, Zhu MH. [Comparing the free fasciocutaneous flap with free jejunium in reconstruction for hypopharyngeal and cervical esophageal defects]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2016; 30:1455-1458. [PMID: 29871115 DOI: 10.13201/j.issn.1001-1781.2016.18.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Indexed: 06/08/2023]
Abstract
Objective:To investigate the application of the reconstruction methods for hypopharyngeal and cervical esophageal defects due to the resection of hypopharyngeal cancer and advanced laryngeal cancer between free fasciocutaneous flaps and free jejunium transfer.We compared the superiorities and inferiorities of these two reconstruction methods. Method:Retrospective review of the archives of 56 patients from 2000 to 2010 who underwent pharyngoesophageal reconstruction with free flaps (n=32) or free jejunal transfer(n=24),comparison of indications,complications, hospitalization duration, swallowing function recovery and postoperative survival time. Result:The overall 3 year survival rate of free flap group and free jejunal transfer group was 59.3%,55.7% respectively; the overall 5 year survival rate was 38.5%,37.1% respectively. The overall rate of complication rate was 18.8%, 16.7% respectively. The patients with free flaps had higher incidence rate of fistula and scarring in the donor site and lower incidence rate of hues and stricture than the ones with free jejunal transfers. The mean hospitalization duration was (15.00±7.06) days and(13.00±6.75) days. The mean time of first oral food intake was(13.00±5.83)days and (11.00±6.67) days. The differences between two groups had no statistical significance(P>0.05). Conclusion:Free flaps and free jejunium transfer are the two most common reconstruction methods for the hypopharyngeal and cervical esophageal defects. Each has its own advantages and disadvantages respectively. We should choose reconstruction method according to the site and extent of the hypopharyngeal and cervical esophageal defects, preoperative and postoperative radiotherapy requirement.
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Wang BZ, Zheng HL, Chen SC, Shen XH, Zhang SQ, Wen W. [Conservative treatment and surgical treatment of cervical cellulitis combineing mediastinal pleural abscess]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2016; 30:468-470;473. [PMID: 29871041 DOI: 10.13201/j.issn.1001-1781.2016.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/15/2015] [Indexed: 11/12/2022]
Abstract
Objective:To explore the diagnosis, treatment and curative effect of cervical cellulitis combineing mediastinal pleural abscess. Method:Clinical data of 37 patients with the cervical cellulitis and mediastinal pleural abscess were analyzed, all patients were confirmed using ultrasond, X-ray, CT, puncture and microbiology examination. The result will analysis the diagnosis, treatment and curative effect through the comparison of conservative treatment and surgical treatment. Result:Twenty-three cases of patients were underwent tracheotomy because of difficulty in breathing and successfully extubated after treatment. Nine cases of patients were given anti-infection treatment and recovered after conservative treatment. Twenty-one cases of neck multiple pus cavity were underwent cavity incision, full removal of necrotic tissue and pipe flushing; 7 cases of patients with neck and mediastinal abscess and within which 2 cases were with toxic shock were underwent adequate drainage of lavage and abscess incision through jugular joint path; the companion of pyothorax in 2 cases were underwent the chest closed drainage. All patients were giving sensitive antibiotic after drug sensitive test, anti-shock treatment and supportive treatment. All the patients were recovered and discharged. The average hospitalization days with conservative treatment of these patients were 15.7 days, and the average hospitalization days with surgical treatment of patients were 25.3 days. Conclusion:The condition of cervical cellulitis is complex, a few case can be cured with conservative treatment. The others progress rapidly when merging mediastinal pleural abscess can cause serious complications, surgical treatment is risky, fully abscess incision, lavage drainage and combine with sensitive antibiotics and supportive treatment are the keys to therapy.
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Slavin MA, Thursky KA, Worth LJ, Chang CC, Morrissey CO, Blyth CC, Chen SC, Szer J. Introduction to the updated Australian and New Zealand consensus guidelines for the use of antifungal agents in the haematology/oncology setting, 2014. Intern Med J 2015; 44:1267-76. [PMID: 25482739 DOI: 10.1111/imj.12593] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This article introduces the second revision of the Australian and New Zealand consensus guidelines for the use of antifungal agents in the haematology/oncology setting. The current update occurs within the context of a growing population at risk of invasive fungal disease, improved understanding of risk factors, availability of new diagnostic tests, a much-expanded evidence base and changing clinical paradigms. Here, we provide an overview of the history and purpose of the guidelines, including changes in scope since the last clinical update was published in 2008. The process for development, and for enabling review of draft recommendations by end-users and other relevant stakeholders, is described. The approach to assigning levels of evidence and grades of recommendation is also provided, along with a comparison to international grading systems.
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Chen SC, Sorrell TC, Chang CC, Paige EK, Bryant PA, Slavin MA. Consensus guidelines for the treatment of yeast infections in the haematology, oncology and intensive care setting, 2014. Intern Med J 2015; 44:1315-32. [PMID: 25482743 DOI: 10.1111/imj.12597] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Pathogenic yeast forms are commonly associated with invasive fungal disease in the immunocompromised host, including patients with haematological malignancies and patients of haemopoietic stem cell transplants. Yeasts include the Candida spp., Cryptococcus spp., Pneumocystis jirovecii and some lesser-known pathogens. Candida species remain the most common cause of invasive yeast infections (and the most common human pathogenic fungi). These guidelines present evidence-based recommendations for the antifungal management of established, invasive yeast infections in adult and paediatric patients in the haematology/oncology setting. Consideration is also given to the critically ill patient in intensive care units, including the neonatal intensive care unit. Evidence for 'pre-emptive' or 'diagnostic-driven antifungal therapy' is also discussed. For the purposes of this paper, invasive yeast diseases are categorised under the headings of invasive candidiasis, cryptococcosis and uncommon yeast infections. Specific recommendations for the management of Pneumocystis jirovecii are presented in an accompanying article (see consensus guidelines by Cooley et al. appearing elsewhere in this supplement).
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van Hal SJ, Gilroy NM, Morrissey CO, Worth LJ, Szer J, Tam CS, Chen SC, Thursky KA, Slavin MA. Survey of antifungal prophylaxis and fungal diagnostic tests employed in malignant haematology and haemopoietic stem cell transplantation (HSCT) in Australia and New Zealand. Intern Med J 2015; 44:1277-82. [PMID: 25482740 DOI: 10.1111/imj.12594] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
This article reports the findings of a survey developed to assess the current use of antifungal prophylaxis among haematology and infectious disease clinicians across Australia and New Zealand, and their alignment with existing consensus guidelines for the use of antifungal agents in the haematology/oncology setting (published 2008). Surveyed clinicians largely followed the current recommendations for prophylaxis in the setting of induction chemotherapy for acute myeloid leukaemia, as well as autologous and low-risk allogeneic haemopoietic stem cell transplantation (HSCT). In keeping with guideline recommendations, posaconazole was the agent used by most centres for high-risk allogeneic HSCT. However, its routine continuation for 75-100 days post-transplantation without de-escalation suggested use beyond those indications described in the 2008 guidelines, namely pre-engraftment neutropenia and graft-versus-host disease. Variations in practice were observed in other settings, such as acute lymphoblastic leukaemia and myelodysplastic syndrome, reflecting the general lack of evidence for antifungal prophylaxis in these patient populations and changing perceptions of risk. With regard to the availability of testing in cases of suspected breakthrough IFD, 40% of centres did not have access to investigative bronchoscopy within 48 h of referral, and results of Aspergillus galactomannan (GM), fungal polymerase chain reaction and therapeutic drug monitoring (TDM) were not available within 48 h in 83%, 90% and 85% of centres respectively. The survey's findings will influence the recommendations provided in the updated 2014 consensus guidelines for the use of antifungal agents in the haematology/oncology setting.
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Cooley L, Dendle C, Wolf J, Teh BW, Chen SC, Boutlis C, Thursky KA. Consensus guidelines for diagnosis, prophylaxis and management of Pneumocystis jirovecii pneumonia in patients with haematological and solid malignancies, 2014. Intern Med J 2015; 44:1350-63. [PMID: 25482745 DOI: 10.1111/imj.12599] [Citation(s) in RCA: 142] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Pneumocystis jirovecii infection (PJP) is a common cause of pneumonia in patients with cancer-related immunosuppression. There are well-defined patients who are at risk of PJP due to the status of their underlying malignancy, treatment-related immunosuppression and/or concomitant use of corticosteroids. Prophylaxis is highly effective and should be given to all patients at moderate to high risk of PJP. Trimethoprim-sulfamethoxazole is the drug of choice for prophylaxis and treatment, although several alternative agents are available.
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Hribar KC, Finlay D, Ma X, Qu X, Ondeck MG, Chung PH, Zanella F, Engler AJ, Sheikh F, Vuori K, Chen SC. Nonlinear 3D projection printing of concave hydrogel microstructures for long-term multicellular spheroid and embryoid body culture. LAB ON A CHIP 2015; 15:2412-8. [PMID: 25900329 PMCID: PMC4439309 DOI: 10.1039/c5lc00159e] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Long-term culture and monitoring of individual multicellular spheroids and embryoid bodies (EBs) remains a challenge for in vitro cell propagation. Here, we used a continuous 3D projection printing approach - with an important modification of nonlinear exposure - to generate concave hydrogel microstructures that permit spheroid growth and long-term maintenance, without the need for spheroid transfer. Breast cancer spheroids grown to 10 d in the concave structures showed hypoxic cores and signs of necrosis using immunofluorescent and histochemical staining, key features of the tumor microenvironment in vivo. EBs consisting of induced pluripotent stem cells (iPSCs) grown on the hydrogels demonstrated narrow size distribution and undifferentiated markers at 3 d, followed by signs of differentiation by the presence of cavities and staining of the three germ layers at 10 d. These findings demonstrate a new method for long-term (e.g. beyond spheroid formation at day 2, and with media exchange) 3D cell culture that should be able to assist in cancer spheroid studies as well as embryogenesis and patient-derived disease modeling with iPSC EBs.
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Sheu YT, Chen SC, Chien CC, Chen CC, Kao CM. Application of a long-lasting colloidal substrate with pH and hydrogen sulfide control capabilities to remediate TCE-contaminated groundwater. JOURNAL OF HAZARDOUS MATERIALS 2015; 284:222-232. [PMID: 25463237 DOI: 10.1016/j.jhazmat.2014.11.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2014] [Revised: 11/15/2014] [Accepted: 11/19/2014] [Indexed: 06/04/2023]
Abstract
A long-lasting emulsified colloidal substrate (LECS) was developed for continuous carbon and nanoscale zero-valent iron (nZVI) release to remediate trichloroethylene (TCE)-contaminated groundwater under reductive dechlorinating conditions. The developed LECS contained nZVI, vegetable oil, surfactants (Simple Green™ and lecithin), molasses, lactate, and minerals. An emulsification study was performed to evaluate the globule droplet size and stability of LECS. The results show that a stable oil-in-water emulsion with uniformly small droplets (0.7 μm) was produced, which could continuously release the primary substrates. The emulsified solution could serve as the dispensing agent, and nZVI particles (with diameter 100-200 nm) were distributed in the emulsion evenly without aggregation. Microcosm results showed that the LECS caused a rapid increase in the total organic carbon concentration (up to 488 mg/L), and reductive dechlorination of TCE was significantly enhanced. Up to 99% of TCE (with initial concentration of 7.4 mg/L) was removed after 130 days of operation. Acidification was prevented by the production of hydroxide ion by the oxidation of nZVI. The formation of iron sulfide reduced the odor from produced hydrogen sulfide. Microbial analyses reveal that dechlorinating bacteria existed in soils, which might contribute to TCE dechlorination.
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Dong Y, Chen SC, Yu XW, Fadlalla E, Jin F, Liu RZ. Birth of a healthy child by a woman with inherited Xq duplications who had experienced stillbirths. GENETICS AND MOLECULAR RESEARCH 2014; 13:4573-8. [PMID: 25036506 DOI: 10.4238/2014.june.17.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
A 23-year-old woman who had experienced repeated stillbirths, was found to carry an additional segment on the long arm of the X chromosome. Array comparative genomic hybridization (aCGH) confirmed the origin of the 2 duplications (about 17.11 Mb). Thus, her karyotype was 46, X, dup (X) (q13.2-q21.1), dup(X) (q21.32-q22.1). We demonstrate that aCGH is a useful complementary tool to cytogenetic analysis for accurately determining banding. To our knowledge, this is the first case with normal apparently phenotype who inherited 2 duplications on Xq. Notably, after 2 stillbirths, she bore a healthy, normal female infant via natural pregnancy. Thus, a carrier of this karyotype can birth a phenotypically normal child.
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Pang JP, Chen LC, Chen LF, Chen SC. DNA Polymorphisms Generated by Arbitrarily Primed PCR in Rice. Biosci Biotechnol Biochem 2014; 56:1357-8. [PMID: 1368846 DOI: 10.1271/bbb.56.1357] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Chen SC, Smith B, Ilina M, Bowen C, Martin N. PReS-FINAL-2307: Libman-Sacks endocarditis as a presentation for systemic lupus erythematous in an adolescent with isolated mitrial regurgitation and Noonan syndrome. Pediatr Rheumatol Online J 2013. [PMCID: PMC4042543 DOI: 10.1186/1546-0096-11-s2-p297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Chen SC, Tsai YT, Hu SC, Lin CL, Chen KL, Chen KH, Chen KT. Factors affecting the use of anti-amoebiasis protective measures among Taiwan immigrants returning to amoebiasis-endemic regions. Public Health 2013; 127:1126-32. [PMID: 24169441 DOI: 10.1016/j.puhe.2013.09.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Revised: 04/09/2013] [Accepted: 09/13/2013] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To investigate the predictors of use of anti-amoebiasis protective measures (AAPMs) among Taiwan immigrants returning to their country of origin, using the Health Belief Model (HBM) to guide the investigation. DESIGN Cross-sectional study. METHODS Between March and May 2011, all permanent immigrants originating from amoebiasis-endemic countries who received services at the immigrant service centres in Taipei or Tainan and who reported that they had returned to their country of origin within the past five years were enrolled in the study. A structured questionnaire containing questions on sociodemographic characteristics and items related to the constructs of the HBM was used as the data collection instrument. RESULTS Complete information was collected from 384 immigrants, with a response rate of 80% (384/480). The mean age of the subjects was 38.4 years (standard deviation 10.6 years). The majority (70%) of participants did not receive travel information through a pretravel consultation, and more than 17% reported that they did not use measures to prevent amoebiasis. Multiple regression analyses revealed that Chinese proficiency, pretravel consultation and lower barriers to using protective measures were significantly associated with the use of AAPMs during return trips to country of origin (R(2) = 0.45; F = 77.5; P < 0.001). CONCLUSION The HBM significantly predicted the use of AAPMs in this study. A high proportion of immigrants did not use appropriate AAPMs when they returned to their country of origin. Educational approaches should be targeted at immigrants originating from amoebiasis-endemic regions who return to their country of origin.
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Tseng LM, Hsu NC, Chen SC, Lu YS, Lin CH, Chang DY, Li H, Lin YC, Chang HK, Chao TC, Ouyang F, Hou MF. Distant metastasis in triple-negative breast cancer. Neoplasma 2013; 60:290-4. [PMID: 23373998 DOI: 10.4149/neo_2013_038] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Triple-negative breast cancer (TNBC) relapses more frequently than hormone receptor-positive subtypes and is often associated with poor outcomes. This retrospective study reviewed the pattern of distant metastasis with regard to survival in patients with TNBC. A total of 205 TNBC patients were analyzed. TNBC patients with lung metastases had the longest median post-metastatic OS (with 95% confidence interval) of 16.6 (10.3-22.9) months, followed by the bone, 16.3 (11.7-20.8) months, the liver, 8.9 (3.5-14.4) months, the pleura, 7.5 (2.8-12.3) months, and the brain, 4.3 (0.6-8.0) months. Kaplan-Meier plots indicated that TNBC patients with metastatic spread to brain, liver, and pleural had poorer post-metastatic OS rate than patients with lung metastases (p = 0.001, 0.004, and 0.029, respectively). Moreover, brain and liver metastases correlated significantly with poorer post-metastatic OS as compared to bone metastasis (p = 0.004 and 0.011, respectively). Route of first metastasis correlated significantly with survival of TNBC patients with brain metastases being the poorest survival indicator, followed by metastases to liver, pleura, bone, and lung.
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Huang YH, Chung CY, Ou HY, Tzang RF, Huang KY, Liu HC, Sun FJ, Chen SC, Pan YJ, Liu SI. Treatment effects of combining social skill training and parent training in Taiwanese children with attention deficit hyperactivity disorder. J Formos Med Assoc 2013; 114:260-7. [PMID: 25777975 DOI: 10.1016/j.jfma.2012.10.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Revised: 08/14/2012] [Accepted: 10/30/2012] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND/PURPOSE Children with attention-deficit/hyperactivity disorder (ADHD) often have problems in social interactions. We investigated the social and behavioral effects of providing both social skill training and parent training to school-aged children with ADHD in Taiwan. METHODS Seven consecutive 8-week behavioral-based social skill training (SST) group sessions were held for 48 children with ADHD; parallel 8-week parent group sessions were provided simultaneously. Fifty-five children with ADHD were recruited as a control group. All children took medication as prescribed by their doctors. The effects were assessed using the teacher and parent version of the Chinese version of Swanson, Nolan, and Pelham, version IV scale (SNAP-IV), the Chinese version of the Child Behavior Check List (CBCL-C), child and teacher version of the modified Social Skill Rating System (SSRS-C and SSRS-T), at baseline, post-treatment, and 4 months from baseline. The doses of methylphenidate and drug compliance were controlled during the analysis. RESULTS The mixed-effects model demonstrated the main effect of group sessions on the Oppositional subscale of SNAP-P, the Anxious/Depressed subscale of CBCL-C, the Self Control subscale of SSRS-C, and the Active Participation subscale of SSRS-T, all in favor of the experimental group. However, the improvement on the Oppositional subscale of SNAP-P and the Self Control subscale of SSRS-C were noted only between baseline and post-treatment period and were not sustained at the end of the follow-up period. CONCLUSION Our study demonstrated that children with ADHD could benefit from this low intensity psychosocial program, although some improvements were not maintained at follow-up assessment.
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