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Bian CH, Pan Y, Tan YN, Zhang LM, Wang RQ, Zhang GJ. [Related factors of urinary tract infections in inpatients based on real world data]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1636-1641. [PMID: 36372756 DOI: 10.3760/cma.j.cn112150-20220526-00534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
To analyze the risk factors for urinary tract infection (UTI) among inpatients. The case data of 1 875 inpatients receiving urinary bacterial culture in Beijing Haidian Hospital from October 2019 to May 2021 were analyzed retrospectively. According to the etiological diagnostic criteria of UTI, they were divided into infection group and non-infection group. The species and distribution of pathogens in the infection group were analyzed, and the case data and laboratory indexes were subjected to univariate analysis. The variables with statistical significance were selected for binary logistic regression to analyze the risk factors of urinary tract infection and establish a prediction model. The receiver operating characteristic (ROC) curve was drawn for each parameter included in the model, and the area under the curve (AUC) was calculated. The diagnostic and predictive efficacy of each parameter alone and their combination for UTI were evaluated. So, a total of 1 162 patients with non-infection group and 713 patients with UTI were detected. Among the cultured pathogens, the constituent ratio of Gram-negative bacteria, Gram-positive bacteria and fungi was 57.2%(408/713), 35.9%(256/713) and 6.9%(49/713) respectively. Multivariate analysis showed that, Age, duration of urinary catheterization>7 d, stroke and orthopedic surgery were the risk factors of UTI among inpatients. The use of antibiotics is a protective factor for urinary tract infections. The prediction model of UTI was established by the risk factors, age, duration of urinary catheterization>7 d, stroke, orthopedic surgery, urinary leukocyte esterase, urinary nitrite and Coefficient of variability of red blood cell volume distribution width (RDW-CV). The AUC of the combination of the eight parameters in diagnosing and predicting UTI was 0.835 (95%CI: 0.816-0.855), with the sensitivity of 70.7% and the specificity of 82.8%. In conclusion,the combination of the eight parameters can better assist in the diagnosis and prediction of UTI, and provide an experimental basis for clinicians to judge UTI.
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Affiliation(s)
- C H Bian
- Laboratory Diagnosis Center,Beijing Tiantan Hospital Affiliated to Capital Medical University, Beijing 100070,China Clinical Laboratory, Beijing Haidian Hospital,Beijing 100089,China
| | - Y Pan
- Clinical Laboratory, Beijing Haidian Hospital,Beijing 100089,China
| | - Y N Tan
- Clinical Laboratory, Beijing Haidian Hospital,Beijing 100089,China
| | - L M Zhang
- Laboratory Diagnosis Center,Beijing Tiantan Hospital Affiliated to Capital Medical University, Beijing 100070,China
| | - R Q Wang
- Clinical Laboratory, Beijing Haidian Hospital,Beijing 100089,China
| | - G J Zhang
- Laboratory Diagnosis Center,Beijing Tiantan Hospital Affiliated to Capital Medical University, Beijing 100070,China Beijing Engineering Research Center of Immunological Reagents Clinical Research,Beijing 100070,China Key Laboratory for Quality Control of In Vitro Diagnostics, National Medical Products Administration, Beijing 100070,China
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Tan YN, Vandekerckhove PJ, Verdonk P. The long road to recovery: at six months since the first COVID-19 wave, elective orthopedic care has still not fully recovered in Belgium. J Exp Orthop 2020; 7:99. [PMID: 33349907 PMCID: PMC7752098 DOI: 10.1186/s40634-020-00316-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 11/26/2020] [Indexed: 02/07/2023] Open
Abstract
PURPOSE The primary aim of our study was to investigate elective orthopaedic care during the first wave government-imposed COVID-19 lockdown and at four weeks and 21 weeks after resuming elective care. The secondary aim of our study was to evaluate the implementation of the European Society of Sports Traumatology, Knee Surgery and Arthroscopy (ESSKA) COVID-19 Guidelines and Recommendations for Resuming Elective Surgery in the clinical practice of Belgian knee surgeons. METHODS We sent three anonymous online surveys to 102 Belgian Knee Society members (BKS) at times mentioned above. Addressed topics were: (1) participant demographics, (2) elective surgeries, (3) outpatient visits, (4) ESSKA Guidelines, (5) patient and surgeon safety. RESULTS During the COVID-19 lockdown, there was a decrease of 97% in elective knee surgeries and 91% in outpatient visits. At four and 21 weeks after resuming elective care, volumes were respectively 67% and 89% for elective surgeries and 81% and 91% for outpatient visits. Regarding ESSKA guidelines, 91% of surgeons had no COVID-19 testing prior to resuming elective care. Ninety-two per cent reported preoperative (< 72 h) patient PCR testing, and 45% gave preference to young patients without comorbidities. Seventy-two per cent did not use additional personal protective equipment (PPE) if a patient PCR test was negative. Forty-nine per cent continued to give preference to general anaesthesia. CONCLUSION Our study shows that elective surgeries and outpatient visits were almost completely interrupted during the COVID-19 lockdown and were still below normal at four and 21 weeks after resuming elective care. Regarding ESSKA COVID-19 guidelines, our study observes good compliance in preoperative patient COVID-19 testing, but lower compliance for preoperative health care personnel testing, patient selection, use of PPE, and locoregional anaesthesia. LEVEL OF EVIDENCE V.
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Affiliation(s)
- Y N Tan
- Department of Orthopedics and Traumatology, University Hospital Brussels, Laarbeeklaan 101, 1090, Jette, Belgium.
| | - P J Vandekerckhove
- Department of Orthopedics and Traumatology, Sint-Jan Hospital, Ruddershove 10, 8000, Orthoclinic, AZ, Belgium
| | - P Verdonk
- ORTHOCA, AZ Monica, Stevenslei 20, 2100, Deurne, Belgium.,Department of Orthopedics and Traumatology, University Hospital Antwerp, Antwerp, Belgium
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Song J, Tan YN, Jańczewski D, Hempenius MA, Xu JW, Tan HR, Vancso GJ. Poly(ferrocenylsilane) electrolytes as a gold nanoparticle foundry: "two-in-one" redox synthesis and electrosteric stabilization, and sensing applications. Nanoscale 2017; 9:19255-19262. [PMID: 29188844 DOI: 10.1039/c7nr04697a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Gold nanoparticles (AuNPs) coated with responsive polymers gained considerable interest due to their controllable size, good stability, and fast environmental response suitable for biological applications and sensing. Here we report on a simple and efficient method for the synthesis of stable and redox responsive AuNPs using organometallic polyelectrolytes in aqueous solutions of HAuCl4. In the redox reaction, positively or negatively charged poly(ferrocenylsilanes) (PFS+/PFS-) served as reducing agents, and also as stabilizing polymers. Due to their unique tunable electrostatic and electrosteric protection, AuNPs coated with PFS-, (PFS+)@AuNPs, possess high redox sensitivity, with reversible, repetitive, sustainable color switching between the assembled (purple color) and disassembled (red color) states as evidenced by UV-Vis absorption and TEM measurements. Feasibility studies reported here indicate that the particles described can be applied as a colorimetric probe for the detection of redox molecules, e.g. vitamin C, in a controlled and facile manner.
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Affiliation(s)
- J Song
- Institute of Material Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634.
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Pang KA, Pang KP, Pang EB, Tan YN, Chan YH, Siow JK. Food allergy and allergic rhinitis in 435 asian patients - A descriptive review. Med J Malaysia 2017; 72:215-220. [PMID: 28889132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To describe the prevalence of food allergy in Asian patients with allergic rhinitis. STUDY DESIGN A non-randomized prospectively collected patients over a three year period, with complaints of nose congestion, rhinorrhea and/or nasal discharge. RESULTS There were 435 patients enrolled, 213 children and 222 adults. The children group had a high prevalence of allergen specific IgE to Dermatophagoides pteryonysinus (70%), Dermatophagoides farina (69%), and Blomia tropicalis (55%); followed by dogs (32%), cats (19%) and cockroaches (19%). In the children food allergy category, the top three allergens were egg white (54%), milk (31%) and soya bean (13%). The adult group had results of Dermatophagoides pteryonysinus (71%), Dermatophagoides farina (72%), and Blomia tropicalis (59%); the adult food allergy category, the top 3 allergens were egg white (13%), milk (6%) and soya bean (5%). There was a statistically significant difference in the child and adult group for Dust, D. pteryonysinus, D. farina, B.tropicalis, egg white, wheat, gluten and soya bean. In the age specific child groups, there was an increased in egg food allergy levels, with a peak at the age of five-nine years old and decreasing thereafter (p=0.04). In the children group, the mean Total Nasal Symptom Score (TNSS) was 10.3 (range of 7 to 13); the adult group was similar, with a mean TNSS of 9.8 (range 5 to 12). CONCLUSION The prevalence of food allergy in paediatric patients with allergic rhinitis is fairly high and should be considered when treating these children.
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Affiliation(s)
| | - K P Pang
- Asia Sleep Centre, Otolaryngology, Singapore
| | | | - Y N Tan
- Asia Sleep Centre, Singapore
| | - Y H Chan
- National University Singapore, Yong Loo Lin School of Medicine, Biostatistics Unit, Singapore
| | - J K Siow
- Tan Tock Seng Hospital, Department of Otolaryngology, Singapore
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Tee WF, Nazaruddin R, Tan YN, Ayob MK. Effects of encapsulation on the viability of potential probiotic Lactobacillus plantarum exposed to high acidity condition and presence of bile salts. FOOD SCI TECHNOL INT 2013; 20:399-404. [PMID: 23774606 DOI: 10.1177/1082013213488775] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study investigated the survival of encapsulated potential probiotic Lactobacillus plantarum which isolated from fermented cocoa beans. κ-Carrageenan was used to encapsulate the probiotic. Encapsulation techniques such as emulsification, freeze-drying or extrusion were adopted to encapsulate the probiotic. Freeze-drying and extrusion methods showed higher (p < 0.05) efficiency (89.48 ± 3.21 and 92.26 ± 1.45%, respectively) in encapsulating the probiotic compared to the emulsification method (82.19 ± 0.71% efficiency). Freeze-dried encapsulated probiotic L. plantarum was selected for further survival analysis as greater amount of beads were produced compared to the extrusion method. Freeze-dried probiotic was found to have significantly (p < 0.05) higher tolerance to acid at pH 2 with higher survival percentage compared to non-encapsulated probiotic. However, freeze-drying encapsulation was proven not to enhance the resistance of the probiotic to bile salt as evidenced by the one log colony reduction as for the non-encapsulated probiotic. Further modification of freeze-drying encapsulation technique is needed to enhance the survival of the encapsulated potential probiotic L. plantarum toward bile salt in the future.
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Affiliation(s)
- W F Tee
- Faculty of Science and Technology, School of Chemical Sciences and Food Technology, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
| | - R Nazaruddin
- Faculty of Science and Technology, School of Chemical Sciences and Food Technology, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
| | - Y N Tan
- Faculty of Science and Technology, School of Chemical Sciences and Food Technology, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
| | - M K Ayob
- Faculty of Science and Technology, School of Chemical Sciences and Food Technology, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
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Luo JX, Tan WB, Tan YN, Chen GJ. [Cloning of the recombinant human hepatocyte growth factor gene]. Hunan Yi Ke Da Xue Xue Bao 2000; 25:425-7. [PMID: 12212107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
Abstract
The full length of HGF cDNA gene(2,184 bp) was amplified successfully from human placental tissue using RT-PCR technique, and then cloned into pGEM-T vector, which was identified and confirmed by restriction endonuclease mapping using Nde I, Bg1 II, Hind III, BamH I and Xho I, as well as DNA sequencing. The above clone of HGF cDNA gene was successfully subcloned into the retrovirus vector(pLNL-XHC), which may be used for further studies of gene expression and gene therapy.
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Affiliation(s)
- J X Luo
- Department of Clinical Biochemistry, Research Center of Molecular Biology, Hunan Medical University, Changsha 410078
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