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Morote J, Picola N, Muñoz-Rodriguez J, Paesano N, Ruiz-Plazas X, Muñoz-Rivero MV, Celma A, García-de Manuel G, Miró B, Abascal JM, Servian P. The Role of Digital Rectal Examination Prostate Volume Category in the Early Detection of Prostate Cancer: Its Correlation with the Magnetic Resonance Imaging Prostate Volume. World J Mens Health 2024; 42:441-448. [PMID: 38164025 PMCID: PMC10949025 DOI: 10.5534/wjmh.230028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 05/02/2023] [Accepted: 05/14/2023] [Indexed: 01/03/2024] Open
Abstract
PURPOSE To relate the prostate volume category (PVC) assessed with digital rectal examination (DRE)-small, median, and large-and the prostate volumes (PVs) assessed with magnetic resonance imaging (MRI) and transrectal ultrasound (TRUS). To compare the clinically significant prostate cancer (csPCa) discrimination ability of two predictive models based on DRE-PVC and MRI-PV. MATERIALS AND METHODS A prospective trial of 2,090 men with prostate-specific antigen >3 ng/mL and/or PCa suspicious DRE were prospectively recruited in 10 centers from Catalonia (Spain), between 2021 and 2022, in whom DRE-PVC was assessed. Pre-biopsy MRI, and 12-core TRUS-random biopsy was always performed after 2- to 6-core TRUS-fusion targeted biopsy of prostate imaging-report and data system >3 lesions. In 370 men (17.7%) the DRE-PVC was unconclusive. Among the 1,720 men finally analyzed the csPCa (grade group >2) detection was 42.4%. RESULTS The median (interquartile range) of TRUS and MRI-PVs of small prostates were 33 mL (19-37 mL) and 35 mL (23-30 mL), p=0.410; in median prostates they were 51 mL (38-58 mL) and 55 mL (48-63 mL) respectively, p<0.001; in large prostates 80 mL (60-100 mL) and 95 mL (75-118 mL) respectively, p<0.001. The predictive models sharing the MRI-PV and DRE-PVC showed areas under the curves of 0.832 (95% confidence interval [CI], 0.813-0.851) and 0.828 (95% CI, 0.809-0.848) respectively, p=0.632, as well as similar net benefit and clinical utility. CONCLUSIONS PVC was unconclusive in 17% of DREs. MRI-PV overestimated the TRUS-PV in median and large prostates. The predictive models based on MRI-PV and DRE-PVC showed similar efficacy to predict csPCa. PVC assessed with DRE is helpful to predict the csPCa risk before MRI.
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Affiliation(s)
- Juan Morote
- Department of Urology, Vall d'Hebron Hospital, Barcelona, Spain
- Department of Surgery, Universitat Autònoma de Barcelona, Barcelona, Spain.
| | - Natàlia Picola
- Department of Urology, Hospital Universitari de Bellvitge, Barcelona, Spain
| | | | | | - Xavier Ruiz-Plazas
- Department of Urology, Hospital Universitari Joan XXIII, Tarragona, Spain
| | | | - Ana Celma
- Department of Urology, Vall d'Hebron Hospital, Barcelona, Spain
- Department of Surgery, Universitat Autònoma de Barcelona, Barcelona, Spain
| | | | - Berta Miró
- Unit of Statistics and Bioinformatics, Vall d'Hebron Reseach Institute, Badalona, Spain
| | - José M Abascal
- Department of Urology, Parc de Salut Mar, Badalona, Spain
| | - Pol Servian
- Department of Surgery, Universitat Pompeu Fabra, Badalona, Spain
- Department of Urology, Hospital Germans Trias i Pujol, Badalona, Spain
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Morote J, Borque-Fernando Á, Triquell M, Campistol M, Servian P, Abascal JM, Planas J, Méndez O, Esteban LM, Trilla E. Comparison of Rotterdam and Barcelona Magnetic Resonance Imaging Risk Calculators for Predicting Clinically Significant Prostate Cancer. EUR UROL SUPPL 2023; 53:46-54. [PMID: 37441350 PMCID: PMC10334241 DOI: 10.1016/j.euros.2023.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/19/2023] [Indexed: 07/15/2023] Open
Abstract
Background Magnetic resonance imaging (MRI)-based risk calculators (MRI-RCs) individualise the likelihood of clinically significant prostate cancer (csPCa) and improve candidate selection for prostate biopsy beyond the Prostate Imaging Reporting and Data System (PI-RADS). Objective To compare the Barcelona (BCN) and Rotterdam (ROT) MRI-RCs in an entire population and according to the PI-RADS categories. Design setting and participants A prospective comparison of BCN- and ROT-RC in 946 men with suspected prostate cancer in whom systematic biopsy was performed, as well as target biopsies of PI-RADS ≥3 lesions. Outcome measurements and statistical analysis Saved biopsies and undetected csPCa (grade group ≥2) were determined. Results and limitations The csPCa detection was 40.8%. The median risks of csPCa from BCN- and ROT-RC were, respectively, 67.1% and 25% in men with csPCa, whereas 10.5% and 3% in those without csPCa (p < 0.001). The areas under the curve were 0.856 and 0.844, respectively (p = 0.116). BCN-RC showed a higher net benefit and clinical utility over ROT-RC. Using appropriate thresholds, respectively, 75% and 80% of biopsies were needed to identify 50% of csPCa detected in men with PI-RADS <3, whereas 35% and 21% of biopsies were saved, missing 10% of csPCa detected in men with PI-RADS 3. BCN-RC saved 15% of biopsies, missing 2% of csPCa in men with PI-RADS 4, whereas ROT-RC saved 10%, missing 6%. No RC saved biopsies without missing csPCa in men with PI-RADS 5. Conclusions ROT-RC provided a lower and narrower range of csPCa probabilities than BCN-RC. BCN-RC showed a net benefit over ROT-RC in the entire population. However, BCN-RC was useful in men with PI-RADS 3 and 4, whereas ROT-RC was useful only in those with PI-RADS 3. No RC seemed to be helpful in men with negative MRI and PI-RADS 5. Patient summary Barcelona risk calculator was more helpful than Rotterdam risk calculator to select candidates for prostate biopsy.
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Affiliation(s)
- Juan Morote
- Department of Urology, Vall d́Hebron Hospital, Barcelona, Spain
- Department of Surgery, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | | | - Marina Triquell
- Department of Urology, Vall d́Hebron Hospital, Barcelona, Spain
- Department of Surgery, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Miriam Campistol
- Department of Urology, Vall d́Hebron Hospital, Barcelona, Spain
- Department of Surgery, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Pol Servian
- Department of Urology, Hospital Germans Trias I Pujol, Badalona, Spain
| | - José M. Abascal
- Department of Urology, Parc de Salut Mar, Barcelona, Spain
- Department of Surgery, Universitat Pompeu Fabra, Badalona, Spain
| | - Jacques Planas
- Department of Urology, Vall d́Hebron Hospital, Barcelona, Spain
- Department of Surgery, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Olga Méndez
- Biomedical Research in Urology Unit, Vall d́Hebron Research Institute, Barcelona, Spain
| | - Luis M. Esteban
- Department of Applied Mathematics, Escuela Universitaria Politécnica La Almunia, Universidad de Zaragoza, Zaragoza, Spain
| | - Enrique Trilla
- Department of Urology, Vall d́Hebron Hospital, Barcelona, Spain
- Department of Surgery, Universitat Autònoma de Barcelona, Bellaterra, Spain
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PLA2G7/PAF-AH as Potential Negative Regulator of the Wnt Signaling Pathway Mediates Protective Effects in BRCA1 Mutant Breast Cancer. Int J Mol Sci 2023; 24:ijms24010882. [PMID: 36614323 PMCID: PMC9821466 DOI: 10.3390/ijms24010882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 12/23/2022] [Accepted: 12/29/2022] [Indexed: 01/05/2023] Open
Abstract
Past studies have confirmed that aberrant activation of the Wnt/β-catenin signaling is associated with tumorigenesis and metastasis in breast cancer, while the role of platelet-activating factor acetylhydrolase (PLA2G7/PAF-AH) in this signaling pathway remains unclear. In this study, we analyze the functional impact of PAF-AH on BRCA1 mutant breast cancer and explore its relationship to the Wnt signaling pathway. By performing immunohistochemistry, PAF-AH expression and β-catenin expression were examined in both BRCA1 WT and BRCA1 mutant breast cancer specimens. The BRCA1 mutant breast cancer cell line HCC1937 was used for in vitro experiments to assess the impact of PAF-AH on cellular functions. The intracellular distribution of β-catenin depending on PLA2G7/PAF-AH expression was investigated by immunocytochemistry. Significantly higher nuclear expression levels of PAF-AH were found in BRCA1 mutant tissue specimens than in BRCA1 WT samples. Cell viability, proliferation, and the motility rate of HCC1937 were significantly enhanced after PLA2G7 silencing, which indicated a protective role of PAF-AH in breast cancer. Nuclear PAF-AH expressed correlatedly with membranous β-catenin. PLA2G7 silencing provoked the β-catenin translocation from the membrane to the nucleus and activated Wnt signaling downstream genes. Our data showed a protective effect of high PAF-AH expression in BRCA1 mutant breast cancer. PAF-AH may achieve its protective effect by negatively regulating the Wnt pathway. In conclusion, our research sheds new light on the regulatory pathways in BRCA1 mutant breast cancer.
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Hartman LM, Blackall LL, van Oppen MJH. Antibiotics reduce bacterial load in Exaiptasia diaphana, but biofilms hinder its development as a gnotobiotic coral model. Access Microbiol 2022; 4:000314. [PMID: 35252752 PMCID: PMC8895603 DOI: 10.1099/acmi.0.000314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 12/07/2021] [Indexed: 12/02/2022] Open
Abstract
Coral reefs are declining due to anthropogenic disturbances, including climate change. Therefore, improving our understanding of coral ecosystems is vital, and the influence of bacteria on coral health has attracted particular interest. However, a gnotobiotic coral model that could enhance studies of coral–bacteria interactions is absent. To address this gap, we tested the ability of treatment with seven antibiotics for 3 weeks to deplete bacteria in Exaiptasia diaphana, a sea anemone widely used as a coral model. Digital droplet PCR (ddPCR) targeting anemone Ef1-α and bacterial 16S rRNA genes was used to quantify bacterial load, which was found to decrease six-fold. However, metabarcoding of bacterial 16S rRNA genes showed that alpha and beta diversity of the anemone-associated bacterial communities increased significantly. Therefore, gnotobiotic E. diaphana with simplified, uniform bacterial communities were not generated, with biofilm formation in the culture vessels most likely impeding efforts to eliminate bacteria. Despite this outcome, our work will inform future efforts to create a much needed gnotobiotic coral model.
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Affiliation(s)
- Leon M. Hartman
- School of BioSciences, The University of Melbourne, Melbourne, VIC, Australia
- Swinburne University of Technology, Hawthorn, VIC, Australia
- Monash University, Clayton, VIC, Australia
| | - Linda L. Blackall
- School of BioSciences, The University of Melbourne, Melbourne, VIC, Australia
| | - Madeleine J. H. van Oppen
- Australian Institute of Marine Science, Townsville, QLD, Australia
- School of BioSciences, The University of Melbourne, Melbourne, VIC, Australia
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Glascock AL, Jimenez NR, Boundy S, Koparde VN, Brooks JP, Edwards DJ, Strauss Iii JF, Jefferson KK, Serrano MG, Buck GA, Fettweis JM. Unique roles of vaginal Megasphaera phylotypes in reproductive health. Microb Genom 2021; 7. [PMID: 34898422 PMCID: PMC8767330 DOI: 10.1099/mgen.0.000526] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The composition of the human vaginal microbiome has been extensively studied and is known to influence reproductive health. However, the functional roles of individual taxa and their contributions to negative health outcomes have yet to be well characterized. Here, we examine two vaginal bacterial taxa grouped within the genus Megasphaera that have been previously associated with bacterial vaginosis (BV) and pregnancy complications. Phylogenetic analyses support the classification of these taxa as two distinct species. These two phylotypes, Megasphaera phylotype 1 (MP1) and Megasphaera phylotype 2 (MP2), differ in genomic structure and metabolic potential, suggestive of differential roles within the vaginal environment. Further, these vaginal taxa show evidence of genome reduction and changes in DNA base composition, which may be common features of host dependence and/or adaptation to the vaginal environment. In a cohort of 3870 women, we observed that MP1 has a stronger positive association with bacterial vaginosis whereas MP2 was positively associated with trichomoniasis. MP1, in contrast to MP2 and other common BV-associated organisms, was not significantly excluded in pregnancy. In a cohort of 52 pregnant women, MP1 was both present and transcriptionally active in 75.4 % of vaginal samples. Conversely, MP2 was largely absent in the pregnant cohort. This study provides insight into the evolutionary history, genomic potential and predicted functional role of two clinically relevant vaginal microbial taxa.
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Affiliation(s)
| | - Nicole R Jimenez
- Department of Microbiology & Immunology, Virginia Commonwealth University, Richmond, VA, USA.,Center for Microbiome Engineering and Data Analysis, Virginia Commonwealth University, Richmond, VA, USA
| | - Sam Boundy
- Department of Microbiology & Immunology, Virginia Commonwealth University, Richmond, VA, USA
| | - Vishal N Koparde
- Life Sciences, Virginia Commonwealth University, Richmond, VA, USA
| | - J Paul Brooks
- Center for Microbiome Engineering and Data Analysis, Virginia Commonwealth University, Richmond, VA, USA.,Department of Supply Chain Management and Analytics, Virginia Commonwealth University, Richmond, VA, USA
| | - David J Edwards
- Center for Microbiome Engineering and Data Analysis, Virginia Commonwealth University, Richmond, VA, USA.,Department of Statistical Sciences and Operations Research, Virginia Commonwealth University, Richmond, VA, USA
| | - Jerome F Strauss Iii
- Center for Microbiome Engineering and Data Analysis, Virginia Commonwealth University, Richmond, VA, USA.,Department of Obstetrics and Gynecology, Virginia Commonwealth University, Richmond, VA, USA
| | - Kimberly K Jefferson
- Department of Microbiology & Immunology, Virginia Commonwealth University, Richmond, VA, USA.,Center for Microbiome Engineering and Data Analysis, Virginia Commonwealth University, Richmond, VA, USA.,Department of Obstetrics and Gynecology, Virginia Commonwealth University, Richmond, VA, USA
| | - Myrna G Serrano
- Department of Microbiology & Immunology, Virginia Commonwealth University, Richmond, VA, USA.,Center for Microbiome Engineering and Data Analysis, Virginia Commonwealth University, Richmond, VA, USA
| | - Gregory A Buck
- Department of Microbiology & Immunology, Virginia Commonwealth University, Richmond, VA, USA.,Center for Microbiome Engineering and Data Analysis, Virginia Commonwealth University, Richmond, VA, USA.,Department of Computer Science, Virginia Commonwealth University, Richmond, VA, USA
| | - Jennifer M Fettweis
- Department of Microbiology & Immunology, Virginia Commonwealth University, Richmond, VA, USA.,Center for Microbiome Engineering and Data Analysis, Virginia Commonwealth University, Richmond, VA, USA.,Department of Obstetrics and Gynecology, Virginia Commonwealth University, Richmond, VA, USA
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Le DX, Do HT, Bui KT, Hoang TQ, Nguyen GH, Nguyen AV, Nguyen QT, Gorgui-Naguib H, Naguib RNG. Lean management for improving hospital waiting times-Case study of a Vietnamese public/general hospital emergency department. Int J Health Plann Manage 2021; 37:156-170. [PMID: 34490656 DOI: 10.1002/hpm.3310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 07/20/2021] [Accepted: 08/16/2021] [Indexed: 11/07/2022] Open
Abstract
INTRODUCTION Emergency departments (EDs) at public hospitals in Vietnam typically face problems with overcrowding, as well as being populated by a wide variety of illnesses, resulting in increasing dissatisfaction from patients. To alleviate these problems, we used the increasingly popular value-stream mapping (VSM) and lean strategy approaches to (1) evaluate the current patient flow in EDs; (2) identify and eliminate the non-valued-added components; and (3) modify the existing process in order to improve waiting times. METHODS Data from a total of 742 patients who presented at the ED of 108 Military Central Hospital in Hanoi, Vietnam, were collected. A VSM was developed where improvement possibilities were identified and attempts to eliminate non-value-added activities were made. A range of issues that were considered as a resource waste were highlighted, which led to a re-design process focusing on prioritizing blood tests and ultrasound procedures. On the administrative side, various measures were considered, including streamlining communication with medical departments, using QR codes for healthcare insurance payments, and efficient management of X-ray and CT scan online results. RESULTS By implementing a lean approach, the following reductions in delay and waiting time were incurred: (1) pre-operative test results (for patients requiring medical procedures/operations) by 33.3% (from 134.4 to 89.4 min); (2) vascular interventions by 10.4% (from 54.6 to 48.9 min); and (3) admission to other hospital departments by 49.5% (from 118.3 to 59.8 min). Additionally, prior to the implementation of the lean strategy approach, only 22.9% of patients or their proxies (family members or friends), who responded to the survey, expressed satisfaction with the ED services. This percentage increased to 76.5% following the curtailment of non-value-added activities. Through statistical inferential test analyses, it can be confidently concluded that applying lean strategy and tools can improve patient flow in public/general hospital EDs and achieve better staff coordination within the various clinical and administrative hospital departments. To the authors' knowledge, such analysis in a Vietnamese hospital's ED context has not been previously undertaken.
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Affiliation(s)
- Duong X Le
- 108 Military Central Hospital, Hanoi, Vietnam
| | - Hoa T Do
- 108 Military Central Hospital, Hanoi, Vietnam
| | - Khoa T Bui
- 108 Military Central Hospital, Hanoi, Vietnam
| | | | | | - Anh V Nguyen
- Faculty of Business Administration & Management, Dai Nam University, Hanoi, Vietnam
| | - Quynh T Nguyen
- Faculty of Business Administration & Management, Dai Nam University, Hanoi, Vietnam.,Department of Mathematics & Statistics, Langara College, Vancouver, Canada
| | | | - Raouf N G Naguib
- School of Mathematics, Computer Science & Engineering, Liverpool Hope University, Liverpool, UK
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7
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Platelet-Activating Factor Acetylhydrolase Expression in BRCA1 Mutant Ovarian Cancer as a Protective Factor and Potential Negative Regulator of the Wnt Signaling Pathway. Biomedicines 2021; 9:biomedicines9070706. [PMID: 34206491 PMCID: PMC8301368 DOI: 10.3390/biomedicines9070706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 06/12/2021] [Accepted: 06/17/2021] [Indexed: 11/17/2022] Open
Abstract
Aberrantly activated Wnt/β-catenin signaling pathway, as well as platelet-activating factor (PAF), contribute to cancer progression and metastasis of many cancer entities. Nonetheless, the role of the degradation enzyme named platelet-activating factor acetylhydrolase (PLA2G7/PAF-AH) in ovarian cancer etiology is still unclear. This study investigated the functional impact of platelet-activating factor acetylhydrolase on BRCA1 mutant ovarian cancer biology and its crosstalk with the Wnt signaling pathway. PAF-AH, pGSK3β, and β-catenin expressions were analyzed in 156 ovarian cancer specimens by immunohistochemistry. PAF-AH expression was investigated in ovarian cancer tissue, serum of BRCA1-mutated patients, and in vitro in four ovarian cancer cell lines. Functional assays were performed after PLA2G7 silencing. The association of PAF-AH and β-catenin was examined by immunocytochemistry. In an established ovarian carcinoma collective, we identified PAF-AH as an independent positive prognostic factor for overall survival (median 59.9 vs. 27.4 months; p = 0.016). PAF-AH correlated strongly with the Wnt signaling proteins pGSK3β (Y216; nuclear: cc = 0.494, p < 0.001; cytoplasmic: cc = 0.488, p < 0.001) and β-catenin (nuclear: cc = 0.267, p = 0.001; cytoplasmic: cc = 0.291, p < 0.001). In particular, high levels of PAF-AH were found in tumor tissue and in the serum of BRCA1 mutation carriers. By in vitro expression analysis, a relevant gene and protein expression of PLA2G7/PAF-AH was detected exclusively in the BRCA1-negative ovarian cancer cell line UWB1.289 (p < 0.05). Functional assays showed enhanced viability, proliferation, and motility of UWB1.289 cells when PLA2G7/PAF-AH was downregulated, which underlines its protective character. Interestingly, by siRNA knockdown of PLA2G7/PAF-AH, the immunocytochemistry staining pattern of β-catenin changed from a predominantly membranous expression to a nuclear one, suggesting a negative regulatory role of PAF-AH on the Wnt/β-catenin pathway. Our data provide evidence that PAF-AH is a positive prognostic factor with functional impact, which seems particularly relevant in BRCA1 mutant ovarian cancer. For the first time, we show that its protective character may be mediated by a negative regulation of the Wnt/β-catenin pathway. Further studies need to specify this effect. Potential use of PAF-AH as a biomarker for predicting the disease risk of BRCA1 mutation carriers and for the prognosis of patients with BRCA1-negative ovarian cancer should be explored.
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Fu J, Luo Y, Mou M, Zhang H, Tang J, Wang Y, Zhu F. Advances in Current Diabetes Proteomics: From the Perspectives of Label- free Quantification and Biomarker Selection. Curr Drug Targets 2021; 21:34-54. [PMID: 31433754 DOI: 10.2174/1389450120666190821160207] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 07/17/2019] [Accepted: 07/24/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND Due to its prevalence and negative impacts on both the economy and society, the diabetes mellitus (DM) has emerged as a worldwide concern. In light of this, the label-free quantification (LFQ) proteomics and diabetic marker selection methods have been applied to elucidate the underlying mechanisms associated with insulin resistance, explore novel protein biomarkers, and discover innovative therapeutic protein targets. OBJECTIVE The purpose of this manuscript is to review and analyze the recent computational advances and development of label-free quantification and diabetic marker selection in diabetes proteomics. METHODS Web of Science database, PubMed database and Google Scholar were utilized for searching label-free quantification, computational advances, feature selection and diabetes proteomics. RESULTS In this study, we systematically review the computational advances of label-free quantification and diabetic marker selection methods which were applied to get the understanding of DM pathological mechanisms. Firstly, different popular quantification measurements and proteomic quantification software tools which have been applied to the diabetes studies are comprehensively discussed. Secondly, a number of popular manipulation methods including transformation, pretreatment (centering, scaling, and normalization), missing value imputation methods and a variety of popular feature selection techniques applied to diabetes proteomic data are overviewed with objective evaluation on their advantages and disadvantages. Finally, the guidelines for the efficient use of the computationbased LFQ technology and feature selection methods in diabetes proteomics are proposed. CONCLUSION In summary, this review provides guidelines for researchers who will engage in proteomics biomarker discovery and by properly applying these proteomic computational advances, more reliable therapeutic targets will be found in the field of diabetes mellitus.
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Affiliation(s)
- Jianbo Fu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yongchao Luo
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Minjie Mou
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Hongning Zhang
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jing Tang
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China.,School of Pharmaceutical Sciences and Innovative Drug Research Centre, Chongqing University, Chongqing 401331, China
| | - Yunxia Wang
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Feng Zhu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China.,School of Pharmaceutical Sciences and Innovative Drug Research Centre, Chongqing University, Chongqing 401331, China
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Bellos I, Pandita A, Panza R. Maternal and perinatal outcomes in pregnant women infected by SARS-CoV-2: A meta-analysis. Eur J Obstet Gynecol Reprod Biol 2021; 256:194-204. [PMID: 33246205 PMCID: PMC7664337 DOI: 10.1016/j.ejogrb.2020.11.038] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 11/06/2020] [Accepted: 11/12/2020] [Indexed: 12/11/2022]
Abstract
Evidence concerning coronavirus disease-19 (covid-19) in pregnancy is still scarce and scattered. This meta-analysis aims to evaluate maternal and neonatal outcomes in covid-19 pregnancies and identify factors associated with perinatal viral transmission. Medline, Scopus, CENTRAL, Web of Science and Google Scholar databases were systematically searched to 3 June 2020. Overall, 16 observational studies and 44 case reports/series were included. Fever was the most frequent maternal symptom, followed by cough and shortness of breath, while about 15 % of infected were asymptomatic. Severe disease was estimated to occur in 11 % of women in case reports/series and in 7 % (95 % CI: 4 %-10 %) in observational studies. Two maternal deaths were reported. The rate of neonatal transmission did not differ between women with and without severe disease (OR: 1.94, 95 % CI: 0.50-7.60). Preterm birth occurred in 29.7 % and 16 % (95 % CI: 11 %-21 %) in data obtained from case series and observational studies, respectively. Stillbirth occurred in 3 cases and 2 neonatal deaths were observed. Vertical transmission was suspected in 4 cases. Fever was the most common neonatal symptom (40 %), followed by shortness of breath (28 %) and vomiting (24 %), while 20 % of neonates were totally asymptomatic. In conclusion, the maternal and neonatal clinical course the infection is typically mild, presenting low mortality rates. The risk of vertical transmission is suggested to be low and may not be affected by the severity of maternal disease. Further large-scale studies are needed to clarify the risk factors associated with viral transmission and severe infection in the neonatal population.
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Affiliation(s)
- Ioannis Bellos
- Laboratory of Experimental Surgery and Surgical Research N.S. Christeas, Athens University Medical School, National and Kapodistrian University of Athens, Greece
| | - Aakash Pandita
- Department of Neonatology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
| | - Raffaella Panza
- Department of Biomedical Science and Human Oncology, Neonatology and Neonatal Intensive Care Section, Policlinico Hospital, University of Bari Aldo Moro, Bari, Italy
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De Jesus AJ, Sheth I, Kwon HJ, Gao Z, Palmer J, Hur M, Hammack TS, Macarisin D, Chen Y. Survival of a serotype 4b strain and a serotype 1/2a strain of Listeria monocytogenes, isolated from a stone fruit outbreak investigation, on whole stone fruit at 4 °C. Int J Food Microbiol 2020; 334:108801. [PMID: 32795712 DOI: 10.1016/j.ijfoodmicro.2020.108801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 04/02/2020] [Accepted: 07/25/2020] [Indexed: 11/29/2022]
Abstract
In the summer of 2014, a multistate outbreak of listeriosis associated with contaminated stone fruit (peach and nectarine) was reported. A serotype 4b variant Listeria monocytogenes (Lm) strain of singleton Sequence Type (ST) 382 was isolated from clinical samples and stone fruit associated with the outbreak. A serotype 1/2b Lm strain of ST5, Clonal Complex 5 was isolated only from outbreak-associated stone fruit, not from clinical samples. Here we investigated the fate of the serotype 4b and 1/2b strains, at two inoculation levels (high level at 3.7 logCFU/fruit and low level at 2.7 logCFU/fruit), on the surfaces of white peach, yellow peach and yellow nectarine stored at 4 °C for 26 days. After rinsing the fruits, we determined the Lm levels in the rinsates and on the peels. We enumerated Lm using a direct plating method and compared two chromogenic agars. The Lm populations rapidly declined in the first 3 days and then declined more slowly until Day 19/21. The maximum decline was 1.6 logCFU/fruit on yellow peach inoculated with serotype 4b at high level. For fruits inoculated with high-level Lm, the lowest level of Lm (1.7 logCFU/fruit) was observed on for white peach inoculated with serotype 1/2b, and the highest level of Lm (2.6 logCFU/fruit) on Day 19/21 was observed on yellow peach inoculated with the serotype 1/2b strain. For fruits inoculated with low-level Lm, the lowest level of Lm (1.3 logCFU/fruit) was observed on yellow nectarine inoculated with either the serotype 4b or 1/2b strain, and the highest level of Lm (1.7 logCFU/fruit) on Day 19/21 was observed on yellow peach inoculated with ST382. The D-values ranged from 15 days to 28 days. Lm remained viable until the end of storage (Day 26), but the levels were not significantly different from those on Day 19/21. The types of stone fruit and Lm strain did not significantly affect the survival of Lm. These results demonstrate that contaminated stone fruit can carry a potential risk for causing listeriosis in susceptible populations. Comparison of direct plating results using two chromogenic agars showed that RAPID' L. mono and Agar Listeria Ottavani & Agosti performed equivalently for enumerating Lm on stone fruit. The fruit rinsing recovered 80% to 84% of Lm from fruit surfaces.
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Affiliation(s)
- Antonio J De Jesus
- Center for Food Safety and Applied Nutrition, 5001 Campus Dr., College Park, MD 20740, United States of America
| | - Ishani Sheth
- Center for Food Safety and Applied Nutrition, 5001 Campus Dr., College Park, MD 20740, United States of America
| | - Hee Jin Kwon
- Center for Food Safety and Applied Nutrition, 5001 Campus Dr., College Park, MD 20740, United States of America
| | - Zhujun Gao
- Center for Food Safety and Applied Nutrition, 5001 Campus Dr., College Park, MD 20740, United States of America
| | - Jessica Palmer
- Center for Food Safety and Applied Nutrition, 5001 Campus Dr., College Park, MD 20740, United States of America
| | - Minji Hur
- Center for Food Safety and Applied Nutrition, 5001 Campus Dr., College Park, MD 20740, United States of America
| | - Thomas S Hammack
- Center for Food Safety and Applied Nutrition, 5001 Campus Dr., College Park, MD 20740, United States of America
| | - Dumitru Macarisin
- Center for Food Safety and Applied Nutrition, 5001 Campus Dr., College Park, MD 20740, United States of America
| | - Yi Chen
- Center for Food Safety and Applied Nutrition, 5001 Campus Dr., College Park, MD 20740, United States of America.
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11
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De Maio A, Porzio E, Rotondo S, Bianchi AR, Faraone-Mennella MR. In Sulfolobus solfataricus, the Poly(ADP-Ribose) Polymerase-Like Thermoprotein Is a Multifunctional Enzyme. Microorganisms 2020; 8:microorganisms8101523. [PMID: 33023025 PMCID: PMC7599888 DOI: 10.3390/microorganisms8101523] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 09/17/2020] [Accepted: 10/01/2020] [Indexed: 11/16/2022] Open
Abstract
In Sulfolobus solfataricus, Sso, the ADP-ribosylating thermozyme is known to carry both auto- and heteromodification of target proteins via short chains of ADP-ribose. Here, we provide evidence that this thermoprotein is a multifunctional enzyme, also showing ATPase activity. Electrophoretic and kinetic analyses were performed using NAD+ and ATP as substrates. The results showed that ATP is acting as a negative effector on the NAD+-dependent reaction, and is also responsible for inducing the dimerization of the thermozyme. These findings enabled us to further investigate the kinetic of ADP-ribosylation activity in the presence of ATP, and to also assay its ability to work as a substrate. Moreover, since the heteroacceptor of ADP-ribose is the sulfolobal Sso7 protein, known as an ATPase, some reconstitution experiments were set up to study the reciprocal influence of the ADP-ribosylating thermozyme and the Sso7 protein on their activities, considering also the possibility of direct enzyme/Sso7 protein interactions. This study provides new insights into the ATP-ase activity of the ADP-ribosylating thermozyme, which is able to establish stable complexes with Sso7 protein.
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Affiliation(s)
- Anna De Maio
- Department of Biology, Polytechnic School of Basic Sciences, University of Naples “Federico II”, 80126 Naples, Italy; (S.R.); (A.R.B.)
- National Institute of Biostructures and Biosystems (INBB), via delle Medaglie d’oro, 00136 Rome, Italy
- Correspondence: (A.D.M.); (M.R.F.-M.); Tel.: +39-081-679134 (A.D.M.); +39-081-679136 (M.R.F.-M.)
| | - Elena Porzio
- Institute of Biochemistry and Cell Biology, CNR, via P.Castellino 111, 80131 Naples, Italy;
| | - Sergio Rotondo
- Department of Biology, Polytechnic School of Basic Sciences, University of Naples “Federico II”, 80126 Naples, Italy; (S.R.); (A.R.B.)
| | - Anna Rita Bianchi
- Department of Biology, Polytechnic School of Basic Sciences, University of Naples “Federico II”, 80126 Naples, Italy; (S.R.); (A.R.B.)
| | - Maria Rosaria Faraone-Mennella
- Department of Biology, Polytechnic School of Basic Sciences, University of Naples “Federico II”, 80126 Naples, Italy; (S.R.); (A.R.B.)
- National Institute of Biostructures and Biosystems (INBB), via delle Medaglie d’oro, 00136 Rome, Italy
- Correspondence: (A.D.M.); (M.R.F.-M.); Tel.: +39-081-679134 (A.D.M.); +39-081-679136 (M.R.F.-M.)
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12
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Tang J, Wang Y, Luo Y, Fu J, Zhang Y, Li Y, Xiao Z, Lou Y, Qiu Y, Zhu F. Computational advances of tumor marker selection and sample classification in cancer proteomics. Comput Struct Biotechnol J 2020; 18:2012-2025. [PMID: 32802273 PMCID: PMC7403885 DOI: 10.1016/j.csbj.2020.07.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 07/06/2020] [Accepted: 07/08/2020] [Indexed: 12/11/2022] Open
Abstract
Cancer proteomics has become a powerful technique for characterizing the protein markers driving transformation of malignancy, tracing proteome variation triggered by therapeutics, and discovering the novel targets and drugs for the treatment of oncologic diseases. To facilitate cancer diagnosis/prognosis and accelerate drug target discovery, a variety of methods for tumor marker identification and sample classification have been developed and successfully applied to cancer proteomic studies. This review article describes the most recent advances in those various approaches together with their current applications in cancer-related studies. Firstly, a number of popular feature selection methods are overviewed with objective evaluation on their advantages and disadvantages. Secondly, these methods are grouped into three major classes based on their underlying algorithms. Finally, a variety of sample separation algorithms are discussed. This review provides a comprehensive overview of the advances on tumor maker identification and patients/samples/tissues separations, which could be guidance to the researches in cancer proteomics.
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Key Words
- ANN, Artificial Neural Network
- ANOVA, Analysis of Variance
- CFS, Correlation-based Feature Selection
- Cancer proteomics
- Computational methods
- DAPC, Discriminant Analysis of Principal Component
- DT, Decision Trees
- EDA, Estimation of Distribution Algorithm
- FC, Fold Change
- GA, Genetic Algorithms
- GR, Gain Ratio
- HC, Hill Climbing
- HCA, Hierarchical Cluster Analysis
- IG, Information Gain
- LDA, Linear Discriminant Analysis
- LIMMA, Linear Models for Microarray Data
- MBF, Markov Blanket Filter
- MWW, Mann–Whitney–Wilcoxon test
- OPLS-DA, Orthogonal Partial Least Squares Discriminant Analysis
- PCA, Principal Component Analysis
- PLS-DA, Partial Least Square Discriminant Analysis
- RF, Random Forest
- RF-RFE, Random Forest with Recursive Feature Elimination
- SA, Simulated Annealing
- SAM, Significance Analysis of Microarrays
- SBE, Sequential Backward Elimination
- SFS, and Sequential Forward Selection
- SOM, Self-organizing Map
- SU, Symmetrical Uncertainty
- SVM, Support Vector Machine
- SVM-RFE, Support Vector Machine with Recursive Feature Elimination
- Sample classification
- Tumor marker selection
- sPLSDA, Sparse Partial Least Squares Discriminant Analysis
- t-SNE, Student t Distribution
- χ2, Chi-square
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Affiliation(s)
- Jing Tang
- Department of Bioinformatics, Chongqing Medical University, Chongqing 400016, China.,College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yunxia Wang
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yongchao Luo
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jianbo Fu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yang Zhang
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China.,School of Pharmaceutical Sciences and Innovative Drug Research Centre, Chongqing University, Chongqing 401331, China
| | - Yi Li
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Ziyu Xiao
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yan Lou
- Zhejiang Provincial Key Laboratory for Drug Clinical Research and Evaluation, The First Affiliated Hospital, Zhejiang University, Hangzhou 310000, China
| | - Yunqing Qiu
- Zhejiang Provincial Key Laboratory for Drug Clinical Research and Evaluation, The First Affiliated Hospital, Zhejiang University, Hangzhou 310000, China
| | - Feng Zhu
- Department of Bioinformatics, Chongqing Medical University, Chongqing 400016, China.,College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
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13
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Jiang P, Yang H, Li R, Li C. Inbound tourism demand forecasting framework based on fuzzy time series and advanced optimization algorithm. Appl Soft Comput 2020. [DOI: 10.1016/j.asoc.2020.106320] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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Wang W, Zhao J, Li C, Pang Q. Shape memory materials promoting cell adhesion and tissue invasion towards the applications requiring minimally invasive implantation. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:1820-1835. [PMID: 32567531 DOI: 10.1080/09205063.2020.1778236] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Wei Wang
- The Department of Plastic and Burn Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Jia Zhao
- Department of Research and Development, Shanghai Jingchen Biotechnology co, LTD, Shanghai, China
| | - Chunbo Li
- Department of Obstetrics and Gynecology, The Obstetrics & Gynecology Hospital of Fudan University, Shanghai, China
| | - Qiying Pang
- Department of Anesthesiology, Tongji Hospital of Tongji University, Shanghai, China
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15
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Kulasegaran S, Li R, Nisbet S, Vasey C, Otutaha B, Walsh M, Jarvis J, Moir MH. Prophylactic Foley catheter insertion into defunctioning ileostomy to reduce obstruction after colorectal surgery: pilot randomized controlled trial. ANZ J Surg 2020; 90:1637-1641. [PMID: 32419349 DOI: 10.1111/ans.15714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/06/2020] [Accepted: 01/07/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND Defunctioning ileostomies provide faecal diversion in major colorectal surgery. This reduces the consequences of an anastomotic leak. However, the formation of an ileostomy carries risks including obstruction at the level of the fascia. Post-operative oedema at the level of the fascia may contribute to obstruction. We hypothesize that the prophylactic insertion of a Foley catheter into the afferent limb of a defunctioning loop ileostomy may help decompress and improve time to low-residue diet (LRD). The objective of the study was to assess the feasibility of a Foley catheter, prophylactically inserted into the afferent limb of a defunctioning loop ileostomy, after major colorectal surgery. METHODS The study was a prospective pilot-randomized controlled trial. Ethical approval was obtained from Northern B Health and Disability Ethics Committee 15/NTB/91 ANZCTR Trial ID: ACTRN12615000691549. RESULTS Forty-nine patients undergoing major elective colorectal surgery with a defunctioning ileostomy, between the years of 2015 and 2018 at North Shore Hospital, Auckland, New Zealand were included in this study. Patients were randomly allocated to either the Foley catheter (n = 26) or non-Foley catheter (n = 23) group. The median time taken to tolerate LRD the primary outcome, was 2 days in the Foley group versus 2 days in the non-Foley group (P = 0.05). There were no differences in the secondary outcome measures such as time to stoma output, length of stay or complications. CONCLUSION This trial failed to show a statistical difference in time taken to tolerate a LRD residue in the Foley catheter group. There was no difference in length of stay, time to flatus or stoma output.
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Affiliation(s)
- Suheelan Kulasegaran
- Department of Surgery, North Shore Hospital, Waitemata District Health Board, Auckland, New Zealand
| | - Ray Li
- Department of Surgery, North Shore Hospital, Waitemata District Health Board, Auckland, New Zealand
| | - Sherry Nisbet
- Department of Surgery, North Shore Hospital, Waitemata District Health Board, Auckland, New Zealand
| | - Carolyn Vasey
- Department of Surgery, North Shore Hospital, Waitemata District Health Board, Auckland, New Zealand
| | - Bacil Otutaha
- Department of Surgery, North Shore Hospital, Waitemata District Health Board, Auckland, New Zealand
| | - Michael Walsh
- Planning, Funding and Outcomes, Waitemata and Auckland District Health Boards, Auckland, New Zealand
| | - John Jarvis
- Department of Surgery, North Shore Hospital, Waitemata District Health Board, Auckland, New Zealand
| | - Mike H Moir
- Department of Surgery, North Shore Hospital, Waitemata District Health Board, Auckland, New Zealand
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16
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The Effect of Thermal Stress on the Bacterial Microbiome of Exaiptasia diaphana. Microorganisms 2019; 8:microorganisms8010020. [PMID: 31877636 PMCID: PMC7022623 DOI: 10.3390/microorganisms8010020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/17/2019] [Accepted: 12/18/2019] [Indexed: 12/15/2022] Open
Abstract
Coral bleaching linked to climate change has generated interest in the response of coral’s bacterial microbiome to thermal stress. The sea anemone, Exaiptasia diaphana, is a popular coral model, but the response of its bacteria to thermal stress has been barely explored. To address this, we compared the bacterial communities of Great Barrier Reef (GBR) E. diaphana maintained at 26 °C or exposed to increasing temperature (26–33 °C) over two weeks. Communities were analyzed by metabarcoding of the bacterial 16S rRNA gene. Bleaching and Symbiodiniaceae health were assessed by Symbiodiniaceae cell density and dark-adapted quantum yield (Fv/Fm), respectively. Significant bleaching and reductions in Fv/Fm occurred in the heat-treated anemones above 29 °C. Overall declines in bacterial alpha diversity in all anemones were also observed. Signs of bacterial change emerged above 31 °C. Some initial outcomes may have been influenced by relocation or starvation, but collectively, the bacterial community and taxa-level data suggested that heat was the primary driver of change above 32 °C. Six bacterial indicator species were identified as potential biomarkers for thermal stress. We conclude that the bacterial microbiome of GBR E. diaphana is generally stable until a thermal threshold is surpassed, after which significant changes occur.
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17
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Sun C, Qi X, Tian Y, Gao L, Jin H, Guo H. Risk factors for the formation of double-contour sign and tophi in gout. J Orthop Surg Res 2019; 14:239. [PMID: 31358044 PMCID: PMC6664526 DOI: 10.1186/s13018-019-1280-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Accepted: 07/15/2019] [Indexed: 11/19/2022] Open
Abstract
Background This study aimed to confirm the diagnostic accuracy of ultrasound (US) on gout and explore the potential risk factors for double-contour sign and tophi formation in gout patients. Methods The US analyses were performed on all knee, ankle, and first metatarsophalangeal (MTP 1) joints to reveal the type and location of lesions. While a questionnaire and blood biochemical index were used to explore the potential risk factors for double-contour sign and tophi in gout, the SPSS17.0 software was used for statistical analysis in the present study. Results Totally, 117 gout patients with 702 joints (38 lesions in knee joint, 93 lesions in ankle joint, and 112 lesions in MTP 1 joint) were enrolled in current analyses. Double-contour sign and joint effusion were the two most outstanding lesion manifestations in knee joints and ankle joints. Tophi and double-contour sign were the two most outstanding lesion manifestations in TMP 1 joints. Moreover, factors including uric acid (UA) level and the highest blood UA were potential risk factors of the double-contour sign, while age and history of US were potential risk factors for tophi. Conclusion US was effective on the joints of gout patients. There was US sensitivity for tophi and double-contour sign in MTP 1 joints. The double-contour sign was a potential specific manifestation in knee joints and ankle joints. Furthermore, UA and highest blood UA level were potential risk factors for double-contour sign, while age and US history were potential risk factors for tophi.
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Affiliation(s)
- Chao Sun
- Department of Rheumatology and Immunology, The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Xinhua District, Shijiazhuang, 050000, Hebei Province, China
| | - Xuan Qi
- Department of Rheumatology and Immunology, The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Xinhua District, Shijiazhuang, 050000, Hebei Province, China
| | - Yu Tian
- Department of Rheumatology and Immunology, The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Xinhua District, Shijiazhuang, 050000, Hebei Province, China
| | - Lixia Gao
- Department of Rheumatology and Immunology, The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Xinhua District, Shijiazhuang, 050000, Hebei Province, China
| | - Hongtao Jin
- Department of Rheumatology and Immunology, The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Xinhua District, Shijiazhuang, 050000, Hebei Province, China
| | - Huifang Guo
- Department of Rheumatology and Immunology, The Second Hospital of Hebei Medical University, No. 215 Heping West Road, Xinhua District, Shijiazhuang, 050000, Hebei Province, China.
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18
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Magneto-nanosensor smartphone platform for the detection of HIV and leukocytosis at point-of-care. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018; 16:10-19. [PMID: 30502420 DOI: 10.1016/j.nano.2018.11.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 10/08/2018] [Accepted: 11/01/2018] [Indexed: 11/23/2022]
Abstract
The advent of personalized medicine has brought an increased interest in personal health among general consumers. As a result, there is a great need for user-centric point-of-care (POC) health devices. Such devices are equally pertinent in developing countries or resource-limited settings for performing diagnostic tests. However, current POC tests for diseases such as human immunodeficiency virus (HIV) or leukocytosis do not provide adequate levels of sensitivity or do not exist at all. Here, we extend our mobile magneto-nanosensor platform to point-of-care HIV and leukocytosis detection. The platform can be multiplexed, and the circuitry enables portability and sensitivity in the POC setting. A smartphone application simplifies operation and provides guidance to facilitate self-testing. Commercially available POC test kits typically provide only qualitative or semi-quantitative results of a single analyte. The magneto-nanosensor platform can provide users with pleasant user-experience while demonstrating robust sensitive and specific multiplexed quantification and detection of common diseases.
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Listeria monocytogenes in Stone Fruits Linked to a Multistate Outbreak: Enumeration of Cells and Whole-Genome Sequencing. Appl Environ Microbiol 2016; 82:7030-7040. [PMID: 27694232 PMCID: PMC5118914 DOI: 10.1128/aem.01486-16] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 09/17/2016] [Indexed: 11/20/2022] Open
Abstract
In 2014, the identification of stone fruits contaminated with Listeria monocytogenes led to the subsequent identification of a multistate outbreak. Simultaneous detection and enumeration of L. monocytogenes were performed on 105 fruits, each weighing 127 to 145 g, collected from 7 contaminated lots. The results showed that 53.3% of the fruits yielded L. monocytogenes (lower limit of detection, 5 CFU/fruit), and the levels ranged from 5 to 2,850 CFU/fruit, with a geometric mean of 11.3 CFU/fruit (0.1 CFU/g of fruit). Two serotypes, IVb-v1 and 1/2b, were identified by a combination of PCR- and antiserum-based serotyping among isolates from fruits and their packing environment; certain fruits contained a mixture of both serotypes. Single nucleotide polymorphism (SNP)-based whole-genome sequencing (WGS) analysis clustered isolates from two case-patients with the serotype IVb-v1 isolates and distinguished outbreak-associated isolates from pulsed-field gel electrophoresis (PFGE)-matched, but epidemiologically unrelated, clinical isolates. The outbreak-associated isolates differed by up to 42 SNPs. All but one serotype 1/2b isolate formed another WGS cluster and differed by up to 17 SNPs. Fully closed genomes of isolates from the stone fruits were used as references to maximize the resolution and to increase our confidence in prophage analysis. Putative prophages were conserved among isolates of each WGS cluster. All serotype IVb-v1 isolates belonged to singleton sequence type 382 (ST382); all but one serotype 1/2b isolate belonged to clonal complex 5. IMPORTANCE WGS proved to be an excellent tool to assist in the epidemiologic investigation of listeriosis outbreaks. The comparison at the genome level contributed to our understanding of the genetic diversity and variations among isolates involved in an outbreak or isolates associated with food and environmental samples from one facility. Fully closed genomes increased our confidence in the identification and comparison of accessory genomes. The diversity among the outbreak-associated isolates and the inclusion of PFGE-matched, but epidemiologically unrelated, isolates demonstrate the high resolution of WGS. The prevalence and enumeration data could contribute to our further understanding of the risk associated with Listeria monocytogenes contamination, especially among high-risk populations.
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Chen YI, Burall LS, Macarisin D, Pouillot R, Strain E, DE Jesus AJ, Laasri A, Wang H, Ali L, Tatavarthy A, Zhang G, Hu L, Day J, Kang J, Sahu S, Srinivasan D, Klontz K, Parish M, Evans PS, Brown EW, Hammack TS, Zink DL, Datta AR. Prevalence and Level of Listeria monocytogenes in Ice Cream Linked to a Listeriosis Outbreak in the United States. J Food Prot 2016; 79:1828-1832. [PMID: 28221903 DOI: 10.4315/0362-028x.jfp-16-208] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A most-probable-number (MPN) method was used to enumerate Listeria monocytogenes in 2,320 commercial ice cream scoops manufactured on a production line that was implicated in a 2015 listeriosis outbreak in the United States. The analyzed samples were collected from seven lots produced in November 2014, December 2014, January 2015, and March 2015. L. monocytogenes was detected in 99% (2,307 of 2,320) of the tested samples (lower limit of detection, 0.03 MPN/g), 92% of which were contaminated at <20 MPN/g. The levels of L. monocytogenes in these samples had a geometric mean per lot of 0.15 to 7.1 MPN/g. The prevalence and enumeration data from an unprecedented large number of naturally contaminated ice cream products linked to a listeriosis outbreak provided a unique data set for further understanding the risk associated with L. monocytogenes contamination for highly susceptible populations.
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Affiliation(s)
- Y I Chen
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Regulatory Science, College Park, Maryland 20740
| | - Laurel S Burall
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Applied Research and Safety Assessment, Laurel, Maryland 20708, USA
| | - Dumitru Macarisin
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Regulatory Science, College Park, Maryland 20740
| | - Régis Pouillot
- Office of Analytics and Outreach, College Park, Maryland 20740
| | - Errol Strain
- Office of Analytics and Outreach, College Park, Maryland 20740
| | - Antonio J DE Jesus
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Regulatory Science, College Park, Maryland 20740
| | - Anna Laasri
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Regulatory Science, College Park, Maryland 20740
| | - Hua Wang
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Regulatory Science, College Park, Maryland 20740
| | - Laila Ali
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Regulatory Science, College Park, Maryland 20740
| | - Aparna Tatavarthy
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Regulatory Science, College Park, Maryland 20740
| | - Guodong Zhang
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Regulatory Science, College Park, Maryland 20740
| | - Lijun Hu
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Regulatory Science, College Park, Maryland 20740
| | - James Day
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Regulatory Science, College Park, Maryland 20740
| | - Jihun Kang
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Applied Research and Safety Assessment, Laurel, Maryland 20708, USA
| | - Surasri Sahu
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Applied Research and Safety Assessment, Laurel, Maryland 20708, USA
| | - Devayani Srinivasan
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Applied Research and Safety Assessment, Laurel, Maryland 20708, USA
| | - Karl Klontz
- Office of Analytics and Outreach, College Park, Maryland 20740
| | - Mickey Parish
- Office of the Center Director, College Park, Maryland 20740
| | - Peter S Evans
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Regulatory Science, College Park, Maryland 20740
| | - Eric W Brown
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Regulatory Science, College Park, Maryland 20740
| | - Thomas S Hammack
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Regulatory Science, College Park, Maryland 20740
| | - Donald L Zink
- Office of the Center Director, College Park, Maryland 20740
| | - Atin R Datta
- U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, Office of Applied Research and Safety Assessment, Laurel, Maryland 20708, USA
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21
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Shin J, Kim G, Lee JW, Lee JE, Kim YS, Yu JH, Lee ST, Ahn SH, Kim H, Lee C. Identification of ganglioside GM2 activator playing a role in cancer cell migration through proteomic analysis of breast cancer secretomes. Cancer Sci 2016; 107:828-35. [PMID: 27002480 PMCID: PMC4968593 DOI: 10.1111/cas.12935] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 03/17/2016] [Accepted: 03/18/2016] [Indexed: 12/28/2022] Open
Abstract
Cancer cell secretomes are considered a potential source for the discovery of cancer markers. In this study, the secretomes of four breast cancer (BC) cell lines (Hs578T, MCF‐7, MDA‐MB‐231, and SK‐BR‐3) were profiled with liquid chromatography–tandem mass spectrometry analysis. A total of 1410 proteins were identified with less than 1% false discovery rate, of which approximately 55% (796 proteins) were predicted to be secreted from cells. To find BC‐specific proteins among the secreted proteins, data of immunohistochemical staining compiled in the Human Protein Atlas were investigated by comparing the data of BC tissues with those of normal tissues. By applying various criteria, including higher expression level in BC tissues, higher predicted potential of secretion, and sufficient number of tandem mass spectra, 12 biomarker candidate proteins including ganglioside GM2 activator (GM2A) were selected for confirmation. Western blot analysis and ELISA for plasma samples of healthy controls and BC patients revealed elevation of GM2A in BC patients, especially those who were estrogen receptor‐negative. Additionally, siRNA‐mediated knockdown of GM2A in BC cells decreased migration in vitro, whereas the overexpression of GM2A led to an increase in cell migration. Although GM2A as a diagnostic and prognostic marker in BC should be carefully verified further, this study has established the potential role of GM2A in BC progression.
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Affiliation(s)
- Jihye Shin
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, Korea.,Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - Gamin Kim
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, Korea.,Department of Pathology, Yonsei University College of Medicine, Seoul, Korea
| | - Jong Won Lee
- Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Ji Eun Lee
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, Korea
| | - Yoo Seok Kim
- Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Jong-Han Yu
- Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Seung-Taek Lee
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - Sei Hyun Ahn
- Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Hoguen Kim
- Department of Pathology, Yonsei University College of Medicine, Seoul, Korea
| | - Cheolju Lee
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, Korea.,Department of Biological Chemistry, Korea University of Science and Technology, Daejeon, Korea
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22
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Yang HY. Awareness of labor insurance coverage for occupational injuries and diseases among employees at small and large enterprises. Tzu Chi Med J 2013. [DOI: 10.1016/j.tcmj.2013.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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23
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Youssif C, Goldenbogen J, Hamoudi R, Carreras J, Viskaduraki M, Cui YX, Bacon CM, Burke GAA, Turner SD. Genomic profiling of pediatric ALK-positive anaplastic large cell lymphoma: A Children's Cancer and Leukaemia Group Study. Genes Chromosomes Cancer 2009; 48:1018-26. [DOI: 10.1002/gcc.20701] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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24
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Au JSK, Cho WCS, Yip TT, Law SCK. Proteomic approach to biomarker discovery in cancer tissue from lung adenocarcinoma among nonsmoking Chinese women in Hong Kong. Cancer Invest 2008; 26:128-35. [PMID: 18259942 DOI: 10.1080/07357900701788031] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Half of the female patients with adenocarcinoma in East Asia are never-smokers. Proteomic analysis of tumor tissue may throw important light on the pathogenesis of this interesting subgroup of lung cancer. The cancer and adjacent normal lung tissue were taken from 21 never-smoked adenocarcinoma and profiled using surface-enhanced laser desorption/ionization time-of-flight mass spectrometry (SELDI-TOF MS). Fifty-two proteins were significantly discriminatory between tumor and normal lung tissues. Ninety-three proteins were found to have high accuracy in discriminating between adenocarcinoma with or without smoking history. These proteins may yield new insights about the altered pathogenetic pathways of never-smoked lung cancers.
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Affiliation(s)
- Joseph S K Au
- Department of Clinical Oncology, Queen Elizabeth Hospital, Hong Kong SAR.
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25
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Cho WC, Yip TT, Chung WS, Leung AW, Cheng CH, Yue KK. Differential expression of proteins in kidney, eye, aorta, and serum of diabetic and non-diabetic rats. J Cell Biochem 2006; 99:256-68. [PMID: 16598775 DOI: 10.1002/jcb.20923] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Diabetes mellitus (DM) is a chronic progressive disease that often results in microvascular and macrovascular complications, yet its pathogenesis is not clear. Automated proteomic technology, coupled with powerful bioinformatics and statistical tools, can provide new insights into the molecular alterations implicated in DM. Following our previous findings of redox changes in the eye and aorta of diabetic rats, as well as the activities of different antioxidant enzymes during the development of DM, this study is further launched to find potential biomarkers by comparing the serum and tissue samples of 26 diabetic rats (8 weeks after streptozotocin [STZ] administration) with 29 normal controls using surface enhanced laser desorption/ionization time-of-flight mass spectrometry (SELDI-TOF MS) technology. Eight potential biomarkers were found in the serum, one potential biomarker was found in the kidney and eye, respectively, whereas three potential biomarkers were discovered in the aorta. One of the serum biomarker candidates was found to match the C-reactive protein (CRP) in the Swiss-Prot knowledgebase. Further validation has been conducted by ELISA kit to confirm the role of CRP during the development of DM. To conclude, the increased level of CRP in diabetic serum demonstrated in this study indicates that the development of DM is associated with inflammation. This is also the first report demonstrating that some potential lysate biomarkers in the kidney, eye, and aorta may be involved in the development of diabetes and its complications. Further identification and evaluation of these potential biomarkers will help unravel the underlying mechanisms of the disease.
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Affiliation(s)
- William C Cho
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong.
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26
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DETECTION RATE OF HISTOLOGICALLY INSIGNIFICANT PROSTATE CANCER WITH SYSTEMATIC SEXTANT BIOPSIES AND FINE NEEDLE ASPIRATION CYTOLOGY. J Urol 2000. [DOI: 10.1016/s0022-5347(05)67531-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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27
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DETECTION RATE OF HISTOLOGICALLY INSIGNIFICANT PROSTATE CANCER WITH SYSTEMATIC SEXTANT BIOPSIES AND FINE NEEDLE ASPIRATION CYTOLOGY. J Urol 2000. [DOI: 10.1097/00005392-200006000-00023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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28
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Brenig B, Leeb T, Jansen S, Kopp T. Analysis of Blood Clotting Factor Activities in Canine Legg-Calvé-Perthes' Disease. J Vet Intern Med 1999. [DOI: 10.1111/j.1939-1676.1999.tb02212.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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