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Neves YCD, Reis AJ, Rodrigues MA, Chimara E, da Silva Lourenço MC, Fountain J, Ramis IB, von Groll A, Gerasimova Y, Rohde KH, Almeida da Silva PE. Detection of Mtb and NTM: preclinical validation of a new asymmetric PCR-binary deoxyribozyme sensor assay. Microbiol Spectr 2024:e0350623. [PMID: 38651877 DOI: 10.1128/spectrum.03506-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 03/15/2024] [Indexed: 04/25/2024] Open
Abstract
Tuberculosis (TB) and infectious diseases caused by non-tuberculous mycobacteria (NTM) are global concerns. The development of a rapid and accurate diagnostic method, capable of detecting and identifying different mycobacteria species, is crucial. We propose a molecular approach, the BiDz-TB/NTM, based on the use of binary deoxyribozyme (BiDz) sensors for the detection of Mycobacterium tuberculosis (Mtb) and NTM of clinical interest. A panel of DNA samples was used to evaluate Mtb-BiDz, Mycobacterium abscessus/Mycobacterium chelonae-BiDz, Mycobacterium avium-BiDz, Mycobacterium intracellulare/Mycobacterium chimaera-BiDz, and Mycobacterium kansasii-BiDz sensors in terms of specificity, sensitivity, accuracy, and limit of detection. The BiDz sensors were designed to hybridize specifically with the genetic signatures of the target species. To obtain the BiDz sensor targets, amplification of a fragment containing the hypervariable region 2 of the 16S rRNA was performed, under asymmetric PCR conditions using the reverse primer designed based on linear-after-the-exponential principles. The BiDz-TB/NTM was able to correctly identify 99.6% of the samples, with 100% sensitivity and 0.99 accuracy. The individual values of specificity, sensitivity, and accuracy, obtained for each BiDz sensor, satisfied the recommendations for new diagnostic methods, with sensitivity of 100%, specificity and accuracy ranging from 98% to 100% and from 0.98 to 1.0, respectively. The limit of detection of BiDz sensors ranged from 12 genome copies (Mtb-BiDz) to 2,110 genome copies (Mkan-BiDz). The BiDz-TB/NTM platform would be able to generate results rapidly, allowing the implementation of the appropriate therapeutic regimen and, consequently, the reduction of morbidity and mortality of patients.IMPORTANCEThis article describes the development and evaluation of a new molecular platform for accurate, sensitive, and specific detection and identification of Mycobacterium tuberculosis and other mycobacteria of clinical importance. Based on BiDz sensor technology, this assay prototype is amenable to implementation at the point of care. Our data demonstrate the feasibility of combining the species specificity of BiDz sensors with the sensitivity afforded by asymmetric PCR amplification of target sequences. Preclinical validation of this assay on a large panel of clinical samples supports the further development of this diagnostic tool for the molecular detection of pathogenic mycobacteria.
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Affiliation(s)
- Yasmin Castillos das Neves
- Laboratory of Mycobacteria, Núcleo de Pesquisa em Microbiologia Médica, Universidade Federal do Rio Grande, Rio Grande do Sul, Brazil
| | - Ana Julia Reis
- Laboratory of Mycobacteria, Núcleo de Pesquisa em Microbiologia Médica, Universidade Federal do Rio Grande, Rio Grande do Sul, Brazil
| | - Marcos Alaniz Rodrigues
- Laboratory of Mycobacteria, Núcleo de Pesquisa em Microbiologia Médica, Universidade Federal do Rio Grande, Rio Grande do Sul, Brazil
| | - Erica Chimara
- Rede Brasileira de Pesquisa em Tuberculose (REDE-TB), Rio Grande, Rio Grande do Sul, Brazil
- Instituto Adolfo Lutz, São Paulo, Brazil
| | - Maria Cristina da Silva Lourenço
- Rede Brasileira de Pesquisa em Tuberculose (REDE-TB), Rio Grande, Rio Grande do Sul, Brazil
- Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | - Jacques Fountain
- Division of Immunity and Pathogenesis, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida, Orlando, USA
| | - Ivy Bastos Ramis
- Laboratory of Mycobacteria, Núcleo de Pesquisa em Microbiologia Médica, Universidade Federal do Rio Grande, Rio Grande do Sul, Brazil
- Rede Brasileira de Pesquisa em Tuberculose (REDE-TB), Rio Grande, Rio Grande do Sul, Brazil
| | - Andrea von Groll
- Laboratory of Mycobacteria, Núcleo de Pesquisa em Microbiologia Médica, Universidade Federal do Rio Grande, Rio Grande do Sul, Brazil
- Rede Brasileira de Pesquisa em Tuberculose (REDE-TB), Rio Grande, Rio Grande do Sul, Brazil
| | - Yulia Gerasimova
- Department of Chemistry, College of Sciences, University of Central Florida, Orlando, Florida, Orlando, USA
| | - Kyle H Rohde
- Division of Immunity and Pathogenesis, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida, Orlando, USA
| | - Pedro Eduardo Almeida da Silva
- Laboratory of Mycobacteria, Núcleo de Pesquisa em Microbiologia Médica, Universidade Federal do Rio Grande, Rio Grande do Sul, Brazil
- Rede Brasileira de Pesquisa em Tuberculose (REDE-TB), Rio Grande, Rio Grande do Sul, Brazil
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Liu Q, Jiang X, Tu W, Liu L, Huang Y, Xia Y, Xia X, Shi Y. Comparative efficiency of differential diagnostic methods for the identification of BRAF V600E gene mutation in papillary thyroid cancer (Review). Exp Ther Med 2024; 27:149. [PMID: 38476918 PMCID: PMC10928970 DOI: 10.3892/etm.2024.12437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 02/02/2024] [Indexed: 03/14/2024] Open
Abstract
V-Raf murine sarcoma viral oncogene homolog B1 (BRAF) encodes a serine-threonine kinase. The V600E point mutation in the BRAF gene is the most common mutation, predominantly occurring in melanoma, and colorectal, thyroid and non-small cell lung cancer. Particularly in the context of thyroid cancer research, it is routinely employed as a molecular biomarker to assist in diagnosing and predicting the prognosis of papillary thyroid cancer (PTC), and to formulate targeted therapeutic strategies. Currently, several methods are utilized in clinical settings to detect BRAF V600E mutations in patients with PTC. However, the sensitivity and specificity of various detection techniques vary significantly, resulting in diverse detection outcomes. The present review highlights the advantages and disadvantages of the methods currently employed in medical practice, with the aim of guiding clinicians and researchers in selecting the most suitable detection approach for its high sensitivity, reproducibility and potential to develop targeted therapeutic regimens for patients with BRAF gene mutation-associated PTC.
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Affiliation(s)
- Qian Liu
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan 610000, P.R. China
| | - Xue Jiang
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan 610000, P.R. China
| | - Wenling Tu
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan 610000, P.R. China
| | - Lina Liu
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan 610000, P.R. China
| | - Ying Huang
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan 610000, P.R. China
| | - Yuxiao Xia
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan 610000, P.R. China
| | - Xuliang Xia
- Department of General Surgery, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan 610000, P.R. China
| | - Yuhong Shi
- Department of Nuclear Medicine, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan 610000, P.R. China
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Yu Z, Meng Q, Ren X, Song W, Yao Q, Chen J, Liu H, Zhao W, Wang B, Chen X. A retrospective study of 3D measurement and analysis applied in the morphological evaluation of achalasia cardia. Quant Imaging Med Surg 2024; 14:898-908. [PMID: 38223042 PMCID: PMC10784013 DOI: 10.21037/qims-23-626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 10/26/2023] [Indexed: 01/16/2024]
Abstract
Background Achalasia cardia (AC) is defined as a disorder of esophageal motility whose diagnostic gold standard depends on high-resolution manometry (HRM). The invasiveness of HRM can cause difficulties in diagnosis, treatment, and follow-up for patients with AC. Thus, we aimed to investigate the function of 3D reconstruction and measurement to prove the wide application of this alternative non-invasive approach for AC. Methods A total of 126 patients with AC and 40 healthy subjects in Tianjin Medical University General Hospital from January 2018 to October 2022 were enrolled in this retrospective study. Chest CT images of these subjects were used to reconstruct the 3D models of the esophagus, stomach, spine, left crus, and right crus. Measurements of esophagus length, volume of esophagus, gastroesophageal insertion angle (His angle), max thickness of esophageal wall, esophagus maximum transverse and longitudinal diameter, esophagus-spine angle, and spine-lower esophageal sphincter (LES) angle were applied based on the models. Results Retrocardiac esophagus length, volume of esophagus, max thickness of esophageal wall, esophagus maximum transverse and longitudinal diameter, thoracic esophagus-spine angle, and spine-LES angle in the AC group were higher than those in the control group (all P values <0.05). Among the three subtypes of AC, thoracic esophagus length, intra-abdominal LES length, volume of esophagus, His angle, esophagus maximum transverse and longitudinal diameter, and thoracic esophagus-spine angle all presented statistical differences (all P values <0.05). Correlation analysis revealed that manometric types were positively associated with His angle [r=0.196; 95% confidence interval (CI): 0.009, 0.372; P=0.028] but negatively associated with volume of esophagus (r=-0.480; 95% CI: -0.639, -0.310; P<0.001), esophagus maximum transverse diameter (r=-0.551; 95% CI: -0.679, -0.400; P<0.001), esophagus maximum longitudinal diameter (r=-0.518; 95% CI: -0.649, -0.366; P<0.001), and thoracic esophagus-spine angle (r=-0.324; 95% CI: -0.479, -0.157; P<0.001). Conclusions This study successfully presented the differences in esophageal length, volume, thickness, and angles between healthy subjects and different AC subtypes on the basis of 3D reconstruction and measurement. Thus, 3D model and measurement can be regarded as a good support for further research and make a valuable contribution to developing non-invasive approaches for AC management.
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Affiliation(s)
- Zihan Yu
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Tianjin, China
| | - Qingguo Meng
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Tianjin, China
| | - Xiangfeng Ren
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Tianjin, China
| | - Wenxuan Song
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Tianjin, China
| | - Qinyan Yao
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Tianjin, China
| | - Jihua Chen
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Tianjin, China
| | - Hang Liu
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Tianjin, China
| | - Wei Zhao
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Tianjin, China
| | - Bangmao Wang
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Tianjin, China
| | - Xin Chen
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Institute of Digestive Disease, Tianjin Medical University General Hospital, Tianjin, China
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Suwalski P, Golpour A, Musigk N, Wilke F, Landmesser U, Heidecker B. Case report: Recurrence of inflammatory cardiomyopathy detected by magnetocardiography. Front Cardiovasc Med 2023; 10:1225057. [PMID: 37808876 PMCID: PMC10556648 DOI: 10.3389/fcvm.2023.1225057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 09/01/2023] [Indexed: 10/10/2023] Open
Abstract
Background The diagnosis of inflammatory cardiomyopathies remains challenging. Life-threatening conditions such as acute coronary syndrome (ACS) always have to be considered as differential diagnoses due to similarities in presentation. Diagnostic methods for inflammatory cardiomyopathy include endomyocardial biopsy (EMB), cardiac magnetic resonance imaging (CMR), and positron emission tomography-computed tomography (PET-CT). We report a case in whom magnetocardiography (MCG) led to an initial diagnosis of inflammatory cardiomyopathy and in whom MCG was used for subsequent monitoring of treatment response under immunosuppression. Case presentation A 53-year-old man presented with two recurrent episodes of inflammatory cardiomyopathy within a 2-year period. The patient initially presented with reduced exercise capacity. Echocardiography revealed a moderately reduced left ventricular ejection fraction (LVEF 40%). Coronary angiography ruled out obstructive coronary artery disease (CAD) and an EMB was performed. The EMB revealed inflammatory cardiomyopathy without viral pathogens or replication. Moreover, we performed MCG, which confirmed a pathological Tbeg-Tmax vector of 0.108. We recently established a cutoff value of Tbeg-Tmax of 0.051 or greater for the diagnosis of inflammatory cardiomyopathy. Immunosuppressive therapy with prednisolone was initiated, resulting in clinical improvement and an LVEF increase from 40% to 45% within 1 month. Furthermore, the MCG vector improved to 0.036, which is considered normal based on our previous findings. The patient remained clinically stable for 23 months. During a routine follow-up, MCG revealed an abnormal Tbeg-Tmax vector of 0.069. The patient underwent additional testing including routine laboratory values, echocardiography (LVEF 35%), and PET-CT. PET-CT revealed increased metabolism in the myocardium-primarily in the lateral wall. Therapy with prednisolone and azathioprine was initiated and MCG was used to monitor the effect of immunosuppressive therapy. Conclusion In addition to diagnostic screening, MCG has the potential to become a valuable method for surveillance monitoring of patients who have completed treatment for inflammatory cardiomyopathy. Furthermore, it could be used for treatment monitoring. While changes in the magnetic vector of the heart are not specific to inflammatory cardiomyopathy, as they may also occur in other types of cardiomyopathies, MCG offers a tool of broad and efficient diagnostic screening for cardiac pathologies without side effects.
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Affiliation(s)
| | | | | | | | | | - Bettina Heidecker
- Department of Cardiology, Angiology and Intensive Care Medicine CBF, Deutsches Herzzentrum der Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt – Universität zu Berlin, Berlin, Germany
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Mora-Salas P, Zapararte S, Villouta P, Araya-León H, Avendaño-Herrera R, Melo F, Mardones FO. Method for lineage typing of epidemic Renibacterium salmoninarum in Chilean salmon farms. J Fish Dis 2023; 46:499-506. [PMID: 36696457 DOI: 10.1111/jfd.13761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/09/2023] [Accepted: 01/11/2023] [Indexed: 06/17/2023]
Abstract
Renibacterium salmoninarum (Rs) is the etiological agent of bacterial kidney disease (BKD), which significantly affects farmed and wild salmonids worldwide. Although the whole genome of Rs (~3.1 million nucleotides) is highly conserved, genomic epidemiology analyses have identified four sub-lineages from Chilean isolates. A total of 94 Rs genomes from the BIGSdb aquaculture database were aligned and compared using bioinformatics tools, identifying 2199 independent single-nucleotide polymorphisms (SNPs) spread along the genome. A detailed analysis of the distribution of the SNPs showed five local zones of a length in the range of 10-15 kbp that should be used to unambiguously identify a specific sub-lineage. Based on the Rs type strain DSM 20767T , we designed multiplex PCR primers that produce specific amplification products which were further sequenced by the Sanger method to obtain the genotype of the sub-lineage. For the genetic typing, we evaluated 27 Rs isolates recovered from BKD outbreaks from different fish species and regions of Chile. Based on the findings reported here, we propose the PCR approach as a valuable tool for the rapid and reliable studying of the relationships between Rs isolates and the different sub-lineages without requiring the sequencing of the entire genome.
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Affiliation(s)
- Patricia Mora-Salas
- Escuela de Medicina Veterinaria, Facultad de Agronomía e Ingeniería Forestal, Facultad de Ciencias Biológicas y Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Sebastián Zapararte
- Laboratorio de Bioinformática Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pamela Villouta
- Laboratorio de Bioinformática Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Henry Araya-León
- Laboratorio de Patología de Organismos Acuáticos y Biotecnología Acuícola, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Viña del Mar, Chile
- Centro FONDAP, Interdisciplinary Center for Aquaculture Research (INCAR), Universidad Andrés Bello, Viña del Mar, Chile
| | - Ruben Avendaño-Herrera
- Laboratorio de Patología de Organismos Acuáticos y Biotecnología Acuícola, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Viña del Mar, Chile
- Centro FONDAP, Interdisciplinary Center for Aquaculture Research (INCAR), Universidad Andrés Bello, Viña del Mar, Chile
- Centro de Investigaciones Marina Quintay (CIMARQ), Universidad Andrés Bello, Quintay, Chile
| | - Francisco Melo
- Laboratorio de Bioinformática Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- Instituto de Ingeniería Biológica y Médica, Facultades de Ingeniería, Medicina y Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Fernando O Mardones
- Escuela de Medicina Veterinaria, Facultad de Agronomía e Ingeniería Forestal, Facultad de Ciencias Biológicas y Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
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Hayashi T, Yaegashi N, Tonegawa S, Konishi I. Importance of diagnostic methods for round ligament leiomyomas in clinical practice. Quant Imaging Med Surg 2023; 13:2033-2037. [PMID: 36915338 PMCID: PMC10006153 DOI: 10.21037/qims-22-1276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 12/14/2022] [Indexed: 02/25/2023]
Affiliation(s)
- Takuma Hayashi
- National Hospital Organization Kyoto Medical Centre, Kyoto, Japan.,Medical R&D Promotion Project, The Japan Agency for Medical Research and Development (AMED), Tokyo, Japan
| | - Nobuo Yaegashi
- Medical R&D Promotion Project, The Japan Agency for Medical Research and Development (AMED), Tokyo, Japan.,Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Susumu Tonegawa
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Ikuo Konishi
- National Hospital Organization Kyoto Medical Centre, Kyoto, Japan.,Medical R&D Promotion Project, The Japan Agency for Medical Research and Development (AMED), Tokyo, Japan.,Kyoto University Graduate School of Medicine, Kyoto, Japan
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Kittelsen KE, Toftaker I, Tahamtani F, Moe RO, Thøfner I, Vasdal G. Keel bone fractures in broiler breeders: is palpation a reliable diagnostic method? Avian Pathol 2023; 52:78-83. [PMID: 36415970 DOI: 10.1080/03079457.2022.2147416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The aim of this study was to estimate the sensitivity and specificity of palpation relative to necropsy for detection of keel bone fractures (KBF) in broiler breeders. In addition, the study investigated observer reliability of palpation. Four commercial breeder flocks (Ross 308 n = 2, Ranger Gold n = 1, Hubbard JA 757, n = 1) were included in the study. A total of 400 hens and 60 roosters were examined after culling or slaughter, at end of lay (63 weeks). Keel bones were first palpated independently by two raters with a varying degree of experience in palpation of keel bones in laying hens. After palpation, a necropsy with investigation of the keel bone was conducted. The prevalence of KBF at end of lay for hens, as diagnosed by necropsy, varied from 14-58%, while only one in 60 assessed roosters had KBF. Palpation had poor sensitivity, with differences between raters ranging from 56% to 36% when hybrid is not considered. The specificity of palpation for all hybrids together was 85% and 88%, for the two raters, respectively. The two raters had moderate agreement, Gwet's agreement coefficient (95% confidence interval): 0.60 (0.52-0.69). In conclusion, palpation has poor diagnostic accuracy for detection of KBF in broiler breeders, and other methods, like necropsy, must be applied for reliable assessments. KBF appears to be a prevalent condition in different hybrids of broiler breeder hens, but not in roosters.RESEARCH HIGHLIGHTS This is the first study to investigate palpation as a diagnostic method for detection of KBF in broiler breeders.Palpation has poor diagnostic accuracy for detection of KBF in broiler breeder hens with differences between raters.KBF can be a prevalent problem in broiler breeder hens of several hybrids, but not in roosters.
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Affiliation(s)
| | - Ingrid Toftaker
- Faculty of Veterinary Medicine, NMBU-Norwegian University of Life Sciences, Oslo, Norway
| | | | - Randi Oppermann Moe
- Faculty of Veterinary Medicine, NMBU-Norwegian University of Life Sciences, Oslo, Norway
| | - Ida Thøfner
- Department of Veterinary & Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Guro Vasdal
- Animalia- The Norwegian Meat and Poultry Research Centre, Oslo, Norway
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Lazarevic I, Banko A, Miljanovic D, Cupic M. Clinical Utility of Quantitative HBV Core Antibodies for Solving Diagnostic Dilemmas. Viruses 2023; 15. [PMID: 36851587 DOI: 10.3390/v15020373] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/20/2023] [Accepted: 01/26/2023] [Indexed: 01/31/2023] Open
Abstract
The present-day management of hepatitis B virus (HBV) infection relies on constant and appropriate monitoring of viral activity, disease progression and treatment response. Traditional HBV infection biomarkers have many limitations in predicting clinical outcomes or therapy success. Quantitation of HBV core antibodies (qAnti-HBc) is a new non-invasive biomarker that can be used in solving multiple diagnostic problems. It was shown to correlate well with infection phases, level of hepatic inflammation and fibrosis, exacerbations during chronic infection and presence of occult infection. Further, the level of qAnti-HBc was recognised as predictive of spontaneous or therapy-induced HBeAg and HBsAg seroclearance, relapse after therapy discontinuation, re-infection after liver transplantation and viral reactivation upon immunosuppression. However, qAnti-HBc cannot be relied upon as a single diagnostic test to solve all dilemmas, and its diagnostic and prognostic power can be much improved when combined with other diagnostic biomarkers (HBV DNA, HBeAg, qHBsAg and anti-HBs antibodies). The availability of commercial qAnti-HBc diagnostic kits still needs to be improved. The comparison of results from different studies and definitions of universal cut-off values continue to be hindered because many methods are only semi-quantitative. The clinical utility of qAnti-HBc and the methods used for its measurement are the focus of this review.
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de Sousa KAF, Nonaka CKV, de Ávila Mendonça RN, Mascarenhas VN, Weber TGL, Regis Silva CG, Mendes AVA, Khouri R, Souza BSF, Gurgel Rocha CA. SARS-CoV-2 Detection via RT-PCR in Matched Saliva and Nasopharyngeal Samples Reveals High Concordance in Different Commercial Assays. Diagnostics (Basel) 2023; 13. [PMID: 36673140 DOI: 10.3390/diagnostics13020329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/05/2022] [Accepted: 12/21/2022] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Self-collected saliva samples can increase the diagnostic efficiency and benefit healthcare workers, patient care, and infection control. This study evaluated the performance of self-collected saliva samples compared to nasopharyngeal swabs using three commercial kits for the qualitative detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). METHODS Matched nasopharyngeal and saliva samples were collected from 103 patients with either asymptomatic or symptomatic COVID-19. Both samples were evaluated using three commercial kits (TaqCheck, Allplex, and TaqPath). To evaluate sample stability, viral RNA extraction was performed in the presence or absence of an RNA-stabilizing solution. Storage conditions, including the duration, temperature, and stability after freezing and thawing of the samples, were also evaluated. RESULTS All the saliva samples showed 100% concordance with the nasopharyngeal swab results using TaqCheck and Allplex kits, and 93% using TaqPath kit. No difference was observed in the samples that used the RNA-stabilizing solution compared to the group without the solution. The Ct values of the freeze-thawed samples after 30 days were higher than those on day 0; however, the results were consistent the fresh samples. CONCLUSION The high concordance of SARS-CoV-2 detection via reverse transcription-polymerase chain reaction (RT-PCR) in matched saliva and nasopharyngeal samples using different commercial assays reinforces the concept that self-collected saliva samples are non-invasive, rapid, and reliable for diagnosing SARS-CoV-2 infection.
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Okuda R, Takemura T, Misumi T, Hagiwara E, Ogura T. Multidisciplinary Discussion for Fibrotic Hypersensitivity Pneumonitis with a Positive Antigen Avoidance. J Asthma Allergy 2023; 16:473-479. [PMID: 37168674 PMCID: PMC10166106 DOI: 10.2147/jaa.s409042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 04/29/2023] [Indexed: 05/13/2023] Open
Abstract
Background In the two fibrotic hypersensitivity pneumonitis (fHP) diagnostic guidelines, the multidisciplinary discussion (MDD) is required to be performed in diagnosis of fHP, as in idiopathic pulmonary fibrosis (IPF) diagnostic guideline. Although some patients with fHP can improve disease condition during antigen avoidance, which can facilitate the diagnosis of fHP, it is unclear if MDD is necessary in all patients with suspected fHP who improved an antigen avoidance. Objective To investigate the diagnosis of fHP via MDD with positive antigen avoidance tests (AATs) and the clinical diagnosis with positive AATs. Methods A single-center, retrospective study was conducted. Between 2012 and 2019, patients with fHP were enrolled in the study. Patients in the MDD diagnostic group consisted of patients diagnosed with MDD, including histopathology findings and positive ATTs, and patients in the clinical diagnostic group were diagnosed by two respiratory physicians and had positive ATTs. Results AAT was performed on 72 of 219 patients, and 58 had positive AATs. The study included 37 patients in the MDD diagnosis group and 21 patients in the clinical diagnosis group. No significant differences in overall survival (OS) were detected between the two groups (HR: 1.99 [95% CI: 0.82‒4.83], p = 0.127). The conducting MDD was not a risk factor for OS; only <79% forced vital capacity was a risk factor in the multivariate Cox hazard regression analysis. No significant difference in annual changes of forced vital capacity, diffusion of the lung for carbon monoxide and Krebs von den Lungen-6 between the MDD diagnostic and the clinical diagnostic groups were observed (p = 0.41, 0.79, and 0.81, respectively). Conclusion In patients with positive AATs, the disease progression of the MDD diagnostic and the clinical diagnostic groups were similar. Therefore, MDD could not be necessary in all patients with suspected fHP who had positive AATs.
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Affiliation(s)
- Ryo Okuda
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, Yokohama, Japan
- Correspondence: Ryo Okuda, Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, 6-16-1 Tomioka-higashi, Kanazawa-ku, Yokohama, Japan, Tel +81-45-701-9581, Email
| | - Tamiko Takemura
- Department of Pathology, Kanagawa Cardiovascular and Respiratory Center, Yokohama, Japan
| | - Toshihiro Misumi
- Department of Data Science, National Cancer Center Hospital East, Chiba, Japan
| | - Eri Hagiwara
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, Yokohama, Japan
| | - Takashi Ogura
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, Yokohama, Japan
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11
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Lusila P, Toivonen A, Jarva H, Vettenranta K, Lehtimäki S, Kekäläinen E. FASCIA Method in the Assessment of Lymphocyte Mitogen Responses in the Laboratory Diagnostics of Primary Immunodeficiencies. J Clin Immunol 2023; 43:653-61. [PMID: 36512178 DOI: 10.1007/s10875-022-01417-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 11/28/2022] [Indexed: 12/15/2022]
Abstract
Lymphocyte responses to mitogens constitute a key part of the diagnostics of combined immunodeficiency (CID). Currently, mostly radioactive thymidine incorporation and carboxyfluorescein diacetate succinimidyl ester (CFSE) dilution methods are used. Flow-cytometric assay for specific cell-mediated immune-response in activated whole blood (FASCIA) has been put forth as an easy-to-perform option for the measurement of lymphocyte responses with the advantage of recognizing different lymphocyte subtypes and avoiding the use of radioactive reagents. Our aim was to analyze retrospectively the usefulness of FASCIA in the diagnostics of CID. We included all lymphocyte stimulation tests done with FASCIA in HUSLAB (Helsinki, Finland) between February 2015 and September 2018 in our analysis. The cohort was divided into two groups according to the patients' final diagnoses: CID (n = 30) or non-CID (n = 159). We evaluated the stimulation responses with a combined FASCIA score (the average of all mitogen responses). The FASCIA score was significantly lower among the CID group compared to the other patients (p = 0.002), and in the ROC analysis, the AUC was 0.75 (p < 0.001) for the FASCIA score. When the three mitogens were analyzed separately, phytohemagglutinin (PHA) was best in separating patients with CID from non-CID (in the ROC analysis AUC 0.71, p = 0.001). Immunosuppressive medication affected the FASCIA result significantly and needs to be considered when evaluating the results. In conclusion, FASCIA can reliably detect the CID patients in the absence of immunosuppressive medication. It emerges as a method with many benefits compared to tests requiring radioactive reagents or the complicated CFSE staining.
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12
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Wu G, Yan T, Yang G, Chai H, Cao C. A Review on Rolling Bearing Fault Signal Detection Methods Based on Different Sensors. Sensors (Basel) 2022; 22:s22218330. [PMID: 36366032 PMCID: PMC9654419 DOI: 10.3390/s22218330] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/17/2022] [Accepted: 10/28/2022] [Indexed: 06/12/2023]
Abstract
As a precision mechanical component to reduce friction between components, the rolling bearing is widely used in many fields because of its slight friction loss, strong bearing capacity, high precision, low power consumption, and high mechanical efficiency. This paper reviews several excellent kinds of study and their relevance to the fault detection of rolling bearings. We summarize the fault location, sensor types, bearing fault types, and fault signal analysis of rolling bearings. The fault signal types are divided into one-dimensional and two-dimensional images, which account for 40.14% and 31.69%, respectively, and their classification is clarified and discussed. We counted the proportions of various methods in the references cited in this paper. Among them, the method of one-dimensional signal detection with external sensors accounted for 3.52%, the method of one-dimensional signal detection with internal sensors accounted for 36.62%, and the method of two-dimensional signal detection with external sensors accounted for 19.72%. The method of two-dimensional signal detection with internal sensors accounted for 11.97%. Among these methods, the highest detection rate is 100%, and the lowest detection rate is more than 70%. The similarities between the different methods are compared. The research results summarized in this paper show that with the progress of the times, a variety of new and better research methods have emerged, which have sped up the detection and diagnosis of rolling bearing faults. For example, the technology using artificial intelligence is still developing rapidly, such as artificial neural networks, convolutional neural networks, and machine learning. Although there are still defects, such methods can quickly discover a fault and its cause, enrich the database, and accumulate experience. More and more advanced techniques are applied in this field, and the detection method has better robustness and superiority.
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Affiliation(s)
- Guoguo Wu
- College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, China
- School of Intelligent Manufacturing Engineering, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Tanyi Yan
- School of Intelligent Manufacturing Engineering, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Guolai Yang
- College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, China
| | - Hongqiang Chai
- College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, China
| | - Chuanchuan Cao
- College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, China
- School of Intelligent Manufacturing Engineering, Chongqing University of Arts and Sciences, Chongqing 402160, China
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13
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Costa SP, Cunha AP, Freitas PP, Carvalho CM. A Phage Receptor-Binding Protein as a Promising Tool for the Detection of Escherichia coli in Human Specimens. Front Microbiol 2022; 13:871855. [PMID: 35722298 PMCID: PMC9202026 DOI: 10.3389/fmicb.2022.871855] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 04/26/2022] [Indexed: 02/03/2023] Open
Abstract
Escherichia coli is a problematic pathogen that causes life-threatening diseases, being a frequent causative agent of several nosocomial infections such as urinary tract and bloodstream infections. Proper and rapid bacterial identification is critical for allowing prompt and targeted antimicrobial therapy. (Bacterio)phage receptor-binding proteins (RBPs) display high specificity for bacterial surface epitopes and, therefore, are particularly attractive as biorecognition elements, potentially conferring high sensitivity and specificity in bacterial detection. In this study, we elucidated, for the first time, the potential of a recombinant RBP (Gp17) to recognize E. coli at different viability states, such as viable but not culturable cells, which are not detected by conventional techniques. Moreover, by using a diagnostic method in which we combined magnetic and spectrofluorimetric approaches, we demonstrated the ability of Gp17 to specifically detect E. coli in various human specimens (e.g., whole blood, feces, urine, and saliva) in about 1.5 h, without requiring complex sample processing.
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Affiliation(s)
- Susana P Costa
- Centre of Biological Engineering, University of Minho, Braga, Portugal.,LABBELS -Associate Laboratory, Braga/Guimarães, Portugal.,International Iberian Nanotechnology Laboratory, Braga, Portugal.,Instituto de Engenharia de Sistemas e Computadores - Microsistemas e Nanotecnologias and IN - Institute of Nanoscience and Nanotechnology, Lisbon, Portugal
| | - Alexandra P Cunha
- Centre of Biological Engineering, University of Minho, Braga, Portugal.,LABBELS -Associate Laboratory, Braga/Guimarães, Portugal.,International Iberian Nanotechnology Laboratory, Braga, Portugal
| | - Paulo P Freitas
- International Iberian Nanotechnology Laboratory, Braga, Portugal.,Instituto de Engenharia de Sistemas e Computadores - Microsistemas e Nanotecnologias and IN - Institute of Nanoscience and Nanotechnology, Lisbon, Portugal
| | - Carla M Carvalho
- International Iberian Nanotechnology Laboratory, Braga, Portugal
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14
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Meng X, Gang WJ, Xiu WC, Tian ZY, Hu XY, Jiao RM, Shi LJ, Yang JW, Hu XY, Jing XH. [Analysis on influencing factors of acupuncture curative effect based on experts' experience]. Zhongguo Zhen Jiu 2022; 42:585-589. [PMID: 35543954 DOI: 10.13703/j.0255-2930.20210330-k0002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
To explore the influencing factors of acupuncture curative effect in literature of experts' experience. The journal literature of experts' experience was retrieved from China National Knowledge Infrastructure (CNKI) and PubMed, starting from inception to September 4, 2020, and the influencing factors of acupuncture curative effect were extracted and analyzed. A total of 499 articles were included, involving 495 articles in Chinese and 4 articles in English. The influencing factors of acupuncture curative effect mainly include five aspects: diagnostic method, acupoint selection of acupuncture, acupuncture manipulation, regulating mind of acupuncture and acupuncture time, and provide reference for acupuncture protocol design in clinical trials.
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Affiliation(s)
- Xing Meng
- Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Wei-Juan Gang
- Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Wen-Cui Xiu
- Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Zi-Yu Tian
- Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Xiao-Yi Hu
- Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Rui-Min Jiao
- Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Lan-Jun Shi
- Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Ji-Wei Yang
- Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Xiang-Yu Hu
- Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Xiang-Hong Jing
- Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing 100700, China
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15
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Narayanan A, Selvakumar P, Siddharthan R, Sanyal K. ClaID: a Rapid Method of Clade-Level Identification of the Multidrug Resistant Human Fungal Pathogen Candida auris. Microbiol Spectr 2022;:e0063422. [PMID: 35343775 DOI: 10.1128/spectrum.00634-22] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Candida auris, the multidrug-resistant human fungal pathogen, emerged as four major distinct geographical clades (clade 1–clade 4) in the past decade. Though isolates of the same species, C. auris clinical strains exhibit clade-specific properties associated with virulence and drug resistance. In this study, we report the identification of unique DNA sequence junctions by mapping clade-specific regions through comparative analysis of whole-genome sequences of strains belonging to different clades. These unique DNA sequence stretches are used to identify C. auris isolates at the clade level in subsequent in silico and experimental analyses. We develop a colony PCR-based clade-identification system (ClaID), which is rapid and specific. In summary, we demonstrate a proof-of-concept for using unique DNA sequence junctions conserved in a clade-specific manner for the rapid identification of each of the four major clades of C. auris. IMPORTANCEC. auris was first isolated in Japan in 2009 as an antifungal drug-susceptible pathogen causing localized infections. Within a decade, it simultaneously evolved in different parts of the world as distinct clades exhibiting resistance to antifungal drugs at varying levels. Recent studies hinted the mixing of isolates belonging to different geographical clades in a single location, suggesting that the area of isolation alone may not indicate the clade status of an isolate. In this study, we compared the genomes of representative strains of the four major clades to identify clade-specific sequences, which were then used to design clade-specific primers. We propose the utilization of whole genome sequence data to extract clade-specific sequences for clade-typing. The colony PCR-based method employed can rapidly distinguish between the four major clades of C. auris, with scope for expanding the panel by adding more primer pairs.
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16
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Abstract
Carotid artery calcification (CAC) is a well-known marker of atherosclerosis and is linked to a high rate of morbidity and mortality. CAC is divided into two types: intimal and medial calcifications, each with its own set of risk factors. Vascular calcification is now understood to be an active, enzymatically regulated process involving dystrophic calcification and endothelial dysfunction at an early stage. This causes a pathogenic inflammatory response, resulting in calcium phosphate deposition in the form of microcalcifications, which causes plaque formation, ultimately becoming unstable with sequelae of complications. If the inflammation goes away, hydroxyapatite crystal formation takes over, resulting in macro-calcifications that help to keep the plaque stable. As CAC can be asymptomatic, it is critical to identify it early using diagnostic imaging. The carotid artery calcification score is calculated using computed tomography angiography (CTA), which is a confirmatory test that enables the examination of plaque composition and computation of the carotid artery calcification score. Magnetic resonance angiography (MRA), which is sensitive as CTA, duplex ultrasound (DUS), positron emission tomography, and computed tomography (PET-CT) imaging with (18) F-Sodium Fluoride, and Optical Coherence Tomography (OCT) are some of the other diagnostic imaging modalities used. The current therapeutic method starts with the best medical care and is advised for all CAC patients. Carotid endarterectomy and carotid stenting are two treatment options that have mixed results in terms of effectiveness and safety. When patient age and anatomy, operator expertise, and surgical risk are all considered, the agreement is that both techniques are equally beneficial.
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Affiliation(s)
- Madeeha Ahmed
- Family Medicine, American University of Antigua College of Medicine, Antigua, ATG
| | - Regina McPherson
- Anatomical Sciences, American University of Antigua, St.John's, ATG
| | - Alexandra Abruzzo
- Anatomical Sciences, St. George's University School of Medicine, St. George's, GRD
| | - Sneha E Thomas
- Internal Medicine, University of Maryland Medical Center, Baltimore, USA
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17
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Kalra LP, Khatter H, Ramanathan S, Sapehia S, Devi K, Kaliyaperumal A, Bal D, Sebastian I, Kakarla R, Singhania A, Rathore S, Klinsing S, Pandian JD, Foerch C. Serum GFAP for stroke diagnosis in regions with limited access to brain imaging (BE FAST India). Eur Stroke J 2021; 6:176-184. [PMID: 34414293 PMCID: PMC8370074 DOI: 10.1177/23969873211010069] [Citation(s) in RCA: 4] [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] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 03/19/2021] [Indexed: 12/28/2022] Open
Abstract
Introduction Despite a high burden of stroke, access to rapid brain imaging is limited in many middle- and low-income countries. Previous studies have described the astroglial protein GFAP (glial fibrillary acidic protein) as a biomarker of intracerebral hemorrhage. The aim of this study was to test the diagnostic accuracy of GFAP for ruling out intracranial hemorrhage in a prospective cohort of Indian stroke patients. Patients and methods This study was conducted in an Indian tertiary hospital (Christian Medical College, Ludhiana). Patients with symptoms suggestive of acute stroke admitted within 12 h of symptom onset were enrolled. Blood samples were collected at hospital admission. Single Molecule Array technology was used for determining serum GFAP concentrations. Results A total number of 155 patients were included (70 intracranial hemorrhage, 75 ischemic stroke, 10 stroke mimics). GFAP serum concentrations were elevated in intracranial hemorrhage patients compared to ischemic stroke patients [median (interquartile range) 2.36 µg/L (0.61–7.16) vs. 0.18 µg/L (0.11–0.38), p < 0.001]. Stroke mimics patients had a median GFAP serum level of 0.14 µg/L (0.09–0.26). GFAP values below the cut-off of 0.33 µg/L (area under the curve 0.871) ruled out intracranial hemorrhage with a negative predictive value of 89.7%, (at a sensitivity for detecting intracranial hemorrhage of 90.0%). Discussion The high negative predictive value of a GFAP test system allows ruling out patients with intracranial hemorrhage. Conclusion In settings where immediate brain imaging is not available, this would enable to implement secondary prevention (e.g., aspirin) in suspected ischemic stroke patients as soon as possible.
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Affiliation(s)
- Love-Preet Kalra
- Department of Neurology, Goethe-University, Frankfurt am Main, Germany
| | - Himani Khatter
- Department of Neurology, Christian Medical College, Ludhiana, Punjab, India
| | | | - Sameer Sapehia
- Department of Neurology, Christian Medical College, Ludhiana, Punjab, India
| | - Kavita Devi
- Department of Neurology, Christian Medical College, Ludhiana, Punjab, India
| | | | - Deepti Bal
- Department of Neurology, Christian Medical College, Ludhiana, Punjab, India
| | - Ivy Sebastian
- Department of Neurology, Christian Medical College, Ludhiana, Punjab, India
| | - Raviteja Kakarla
- Department of Neurology, Christian Medical College, Ludhiana, Punjab, India
| | - Anusha Singhania
- Department of Neurology, Christian Medical College, Ludhiana, Punjab, India
| | - Shubhra Rathore
- Department of Radiology, Christian Medical College, Ludhiana, Punjab, India
| | - Svenja Klinsing
- Department of Neurology, Goethe-University, Frankfurt am Main, Germany
| | | | - Christian Foerch
- Department of Neurology, Goethe-University, Frankfurt am Main, Germany
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18
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Rooney K, Levy MA, Haghshenas S, Kerkhof J, Rogaia D, Tedesco MG, Imperatore V, Mencarelli A, Squeo GM, Di Venere E, Di Cara G, Verrotti A, Merla G, Tedder ML, DuPont BR, Sadikovic B, Prontera P. Identification of a DNA Methylation Episignature in the 22q11.2 Deletion Syndrome. Int J Mol Sci 2021; 22:8611. [PMID: 34445317 DOI: 10.3390/ijms22168611] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 07/26/2021] [Accepted: 08/04/2021] [Indexed: 12/27/2022] Open
Abstract
The 22q11.2 deletion syndrome (22q11.2DS) is the most common genomic disorder in humans and is the result of a recurrent 1.5 to 2.5 Mb deletion, encompassing approximately 20–40 genes, respectively. The clinical presentation of the typical deletion includes: Velocardiofacial, Di George, Opitz G/BBB and Conotruncalanomaly face syndromes. Atypical deletions (proximal, distal or nested) are rare and characterized mainly by normal phenotype or mild intellectual disability and variable clinical features. The pathogenetic mechanisms underlying this disorder are not completely understood. Because the 22q11.2 region harbours genes coding for transcriptional factors and chromatin remodelers, in this study, we performed analysis of genome-wide DNA methylation of peripheral blood from 49 patients with 22q11.2DS using the Illumina Infinium Methylation EPIC bead chip arrays. This cohort comprises 43 typical, 2 proximal and 4 distal deletions. We demonstrated the evidence of a unique and highly specific episignature in all typical and proximal 22q11.2DS. The sensitivity and specificity of this signature was further confirmed by comparing it to over 1500 patients with other neurodevelopmental disorders with known episignatures. Mapping the 22q11.2DS DNA methylation episignature provides both novel insights into the molecular pathogenesis of this disorder and an effective tool in the molecular diagnosis of 22q11.2DS.
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Lindberg L, Kristensen B, Eldrup E, Thomsen JF, Jensen LT. Infrared Thermography as a Method of Verification in Raynaud's Phenomenon. Diagnostics (Basel) 2021; 11:981. [PMID: 34071544 DOI: 10.3390/diagnostics11060981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/18/2021] [Accepted: 05/21/2021] [Indexed: 01/04/2023] Open
Abstract
Raynaud's phenomenon (RP) is characterized by the episodic whitening of the fingers upon exposure to cold. A recently described thermographic algorithm was proposed as a diagnostic replacement of the currently applied finger systolic pressure (FSP) test. The aim of the study was to evaluate the performance of the thermographic algorithm when applied in patients suspected of having RP. Forty-three patients were examined using thermographic imaging after local cooling of the hands in water of 10 °C for 1 min. The thermographic algorithm was applied to predict the probability of RP. The performance of the algorithm was evaluated with different cut-off levels. A new algorithm was proposed based on patients from the target population. The performance of the tested algorithm was noninferior to the FSP test, when a cut-off level of 0.05 was applied, yielding a sensitivity and specificity of 69% and 58%, respectively. The accuracy was 66%. The FSP test had a sensitivity and specificity of 77% and 37%, respectively, and the accuracy was 59%. The thermographic method proved useful for detecting RP and was able to replace the FSP test as a diagnostic test. The alternative algorithm revealed that other thermographic variables were more predictive of the target population, but this should be verified in future patients.
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20
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Lindberg L, Kristensen B, Thomsen JF, Eldrup E, Jensen LT. Characteristic Features of Infrared Thermographic Imaging in Primary Raynaud's Phenomenon. Diagnostics (Basel) 2021; 11:558. [PMID: 33804657 DOI: 10.3390/diagnostics11030558] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/17/2021] [Accepted: 03/17/2021] [Indexed: 02/06/2023] Open
Abstract
Raynaud’s phenomenon (RP) is characterized by the episodic whitening of the fingers upon exposure to cold. Verification of the condition is crucial in vibration-exposed patients. The current verification method is outdated, but thermographic imaging seems promising as a diagnostic replacement. By investigating patients diagnosed with RP, the study aimed at developing a simple thermographic procedure that could be applied to future patients where verification of the diagnosis is needed. Twenty-two patients with primary RP and 58 healthy controls were examined using thermographic imaging after local cooling of the hands for 1 min in water of 10°C. A logistic regression model was fitted with the temperature curve characteristics to convey a predicted probability of having RP. The characteristics time to end temperature and baseline temperature were the most appropriate predictors of RP among those examined (p = 0.004 and p = 0.04, respectively). The area under the curve was 0.91. The cut-off level 0.46 yielded a sensitivity and specificity of 82% and 86%, respectively. The positive and negative predictive values were 69% and 93%, respectively. This newly developed thermographic method was able to distinguish between patients with RP and healthy controls and was easy to operate. Thus, the method showed great promise as a method for verification of RP in future patients. Trial registration: ClinicalTrials.gov NCT03094910.
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Takano T, Watanabe H, Doki T, Kusuhara H. Detection of feline norovirus using commercial real-time RT-PCR kit for the diagnosis of human norovirus infection. J Vet Med Sci 2021; 83:805-808. [PMID: 33692232 PMCID: PMC8182310 DOI: 10.1292/jvms.20-0703] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Feline noroviruses (FNoVs) are potential clinical pathogens in cats. To perform an epidemiological study of FNoV infection, it is necessary to develop a simple and effective method for virus detection. We investigated whether a commercial human NoV quantitative RT-PCR kit for the detection of human NoVs used in medical practice can be applied for FNoV detection. This kit was capable of detecting the FNoV gene regardless of the genogroup (GIV and GVI) in experimental and field samples. Based on the above findings, it is possible to detect FNoVs using human NoV tests. The relationship between FNoV infection and gastroenteritis in cats may be clarified by applying these methods to an epidemiological survey of FNoVs.
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Affiliation(s)
- Tomomi Takano
- School of Veterinary Medicine, Kitasato University, Towada, Aomori 034-8628, Japan
| | - Haruna Watanabe
- School of Veterinary Medicine, Kitasato University, Towada, Aomori 034-8628, Japan
| | - Tomoyoshi Doki
- School of Veterinary Medicine, Kitasato University, Towada, Aomori 034-8628, Japan
| | - Hajime Kusuhara
- Health and Environment Research Institute, Yokkaichi, Mie 512-1211, Japan
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Yamada Y, Hasegawa H, Henmi N, Tsuruta S, Wasa M, Kihara H, Kodera T, Kouyama T, Kumazawa K. Evaluation of respiratory center function in congenital central hypoventilation syndrome by monitoring electrical activity of the diaphragm. Pediatr Int 2021; 63:168-171. [PMID: 32573869 DOI: 10.1111/ped.14359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 06/08/2020] [Accepted: 06/17/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND A definitive diagnosis of congenital central hypoventilation syndrome (CCHS) is made by genetic testing. However, there are only a few examinations that warrant genetic testing. Electrical activity of the diaphragm (Edi) reflects neural respiratory drive from respiratory center to diaphragm. We evaluated the function of the respiratory center in CCHS by Edi monitoring. METHODS Monitoring of Edi was performed in six CCHS cases without mechanical ventilation. The monitoring time was 30 consecutive minutes from wakefulness to sleep. The TcPCO2 or EtCO2 and SpO2 were recorded simultaneously. RESULTS The Edi peak during wakefulness was 14.0 (10.3-21.0) µV and the Edi peak during sleep was 6.7 (3.8-8.0) µV. The Edi peak during sleep was significantly lower than the Edi peak during wakefulness, and patients were in a state of hypoventilation. Although TcPCO2 or EtCO2 increased due to hypoventilation, an increase in the Edi peak that reflects central respiratory drive was not observed. ΔEdi/ΔCO2 was -0.06μV/mmHg. Maximum EtCO2 or TcPco2 was 51 mmHg, and the average SpO2 was 91.5% during monitoring. CONCLUSIONS We confirmed that Edi monitoring could evaluate the function of the respiratory center and reproduce the hypoventilation of CCHS. The present study suggested that Edi monitoring is a useful examination in deciding whether to perform genetic testing or not and it may lead to an early diagnosis of CCHS.
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Affiliation(s)
- Yosuke Yamada
- Department of Neonatology, Tokyo Women's Medical University Medical Center East, Tokyo, Japan
| | - Hisaya Hasegawa
- Department of Neonatology, Tokyo Women's Medical University Medical Center East, Tokyo, Japan
| | - Nobuhide Henmi
- Department of Neonatology, Tokyo Women's Medical University Medical Center East, Tokyo, Japan
| | - Shio Tsuruta
- Department of Neonatology, Tokyo Women's Medical University Medical Center East, Tokyo, Japan
| | - Masanori Wasa
- Department of Neonatology, Tokyo Women's Medical University Medical Center East, Tokyo, Japan
| | - Hirotaka Kihara
- Department of Neonatology, Tokyo Women's Medical University Medical Center East, Tokyo, Japan
| | - Takayuki Kodera
- Department of Neonatology, Tokyo Women's Medical University Medical Center East, Tokyo, Japan
| | - Toshinari Kouyama
- Department of Neonatology, Tokyo Women's Medical University Medical Center East, Tokyo, Japan
| | - Kensuke Kumazawa
- Department of Neonatology, Tokyo Women's Medical University Medical Center East, Tokyo, Japan
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Abreu EFM, Lopes AC, Fernandes AM, Silva SXB, Barbosa CJ, Nascimento AS, Laranjeira FF, Andrade EC. First Report of HLB Causal Agent in Psyllid in State of Bahia, Brazil. Neotrop Entomol 2020; 49:780-782. [PMID: 32557201 DOI: 10.1007/s13744-020-00783-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 05/02/2020] [Indexed: 06/11/2023]
Abstract
The state of Bahia ranks fourth in the national rank for citrus production, and the region of Chapada Diamantina is emerging an important producer of orange for fresh fruit market. Huanglongbing (HLB) is the major phytosanitary threat to Bahia citriculture. In Brazil, the disease was first reported in 2004 in São Paulo state. The bacterium Candidatus Liberibacter asiaticus (CLas) is one of the causal agents of HLB, which is transmitted by the insect vector Diaphorina citri Kuwayama (Hemiptera: Liviidae). Bahia is a HLB-free area; therefore, it is essential to monitor its citrus-producing areas to early detect any possible introduction of the CLas. This study aimed to monitor the presence of the bacteria in the insect vector. Diaphorina citri samples were collected from 2011 to 2014 in different cities located at Chapada Diamantina region and tested by qPCR for the presence of CLas. Three samples were considered positive to bacterium, and all from psyllids collected on Murraya paniculata in the city of Seabra.
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Affiliation(s)
- E F M Abreu
- Embrapa Recursos Genéticos e Biotecnologia, Brasília, Distrito Federal, Brasil.
| | - A C Lopes
- Agência de Defesa Agropecuária da Bahia, Salvador, Bahia, Brasil
| | - A M Fernandes
- Faculdade Maria Milza, Cruz das Almas, Bahia, Brazil
| | - S X B Silva
- Agência de Defesa Agropecuária da Bahia, Salvador, Bahia, Brasil
| | - C J Barbosa
- Embrapa Mandioca e Fruticultura, Cruz das Almas, Bahia, Brasil
| | - A S Nascimento
- Embrapa Mandioca e Fruticultura, Cruz das Almas, Bahia, Brasil
| | - F F Laranjeira
- Embrapa Mandioca e Fruticultura, Cruz das Almas, Bahia, Brasil
| | - E C Andrade
- Embrapa Mandioca e Fruticultura, Cruz das Almas, Bahia, Brasil
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Kruchinina MV, Gromov AA, Generalov VM, Kruchinin VN. Possible Differential Diagnosis of the Degrees of Rheological Disturbances in Patients with Type 2 Diabetes Mellitus by Dielectrophoresis of Erythrocytes. J Pers Med 2020; 10:E60. [PMID: 32635670 DOI: 10.3390/jpm10030060] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 07/01/2020] [Accepted: 07/02/2020] [Indexed: 11/29/2022] Open
Abstract
Hemorheological disorders in structural and functional parameters of erythrocytes are involved in the pathological process in type 2 diabetes mellitus (DM). Aim: to investigate the feasibility of differential diagnosis of the degrees of rheological disturbances in patients with type 2 DM by dielectrophoresis of erythrocytes. Methods: 62 subjects (58.7 ± 1.6 years) with type 2 DM diagnosed according to the criteria of the ADA were subdivided into two groups: medium (n = 47) and high (n = 15) risk of microcirculatory disturbances (EASD, 2013). Electric and viscoelastic parameters of erythrocytes were determined by dielectrophoresis using an electric optical system of cell detection. Results: the progression of rheological disturbances in the patients with type 2 DM was accompanied by significant decreases in deformation amplitude; dipole moment; polarizability; and membrane capacity; and increases in conductivity, viscosity, rigidity, hemolysis, and formation of aggregates (p < 0.05). Combined use of the parameters increased sensitivity (97.8%) and specificity (86.7%) for diagnosis of rheological disturbances in type 2 DM. Conclusion: the proposed experimental approach possesses low invasiveness, high productivity, shorter duration, vividness of the results. The method allows to evaluate not only local (renal and ocular) but also systemic status of microcirculation using more than 20 parameters of erythrocytes.
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Yu J, Lin Y, Cao Y, Li X, Liao D, Ye Y, Pan M, Ye J, Wei Y, Xiao L, Tang J, Kang R, Xie J, Zhou L. Development and application of a colloidal gold test strip for the rapid detection of the infectious laryngotracheitis virus. Poult Sci 2020; 99:2407-2415. [PMID: 32359575 PMCID: PMC7597402 DOI: 10.1016/j.psj.2019.11.066] [Citation(s) in RCA: 6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 11/26/2019] [Accepted: 11/26/2019] [Indexed: 12/30/2022] Open
Abstract
Infectious laryngotracheitis disease is an acute, highly contagious viral disease seriously affecting poultry industry worldwide. In this study, a rapid and simple immune colloidal gold test strip for detecting infectious laryngotracheitis virus (ILTV) was developed based on membrane chromatography with monoclonal antibodies (mAbs) against gJ protein of ILTV and systematically evaluated for the detection of ILTV from clinical samples. mAb 2D4 1D7 was conjugated with colloidal gold as the detector antibody on the test strip. Another mAb, 1D8 1G3, was used as the capture complex at the test line (T-line), and goat antimouse IgG antibody was used as the capture antibody at the control line (C-line). The colloidal gold test strip showed high specificity in the detection of ILTV, with no cross-reaction with other avian pathogens, including infectious bronchitis virus, infectious bursal disease virus, avian influenza virus, Newcastle disease virus, fowl adenoviruses, and Marek's disease virus. Besides, the detection limit of this method was as low as 60 ELD50/mL for the ILTV Wanggang strain. Furthermore, we evaluated its application in 260 clinical samples suspected of infection with ILTV. Results from the strip test were nearly identical with those from real-time PCR (coincidence rate 99.6%) and showed higher sensitivity than conventional PCR. All the results obtained in this study indicated that the colloidal gold test strip can be applied as a simple, rapid, sensitive, and specific diagnostic tool for the detection of ILTV, especially in resource-limited areas.
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Affiliation(s)
- Jifeng Yu
- Sichuan Animal Science Academy, Sichuan Provincial Key Laboratory of Animal Breeding and Genetics, Chengdu 610066, China
| | - Yi Lin
- Sichuan Animal Science Academy, Sichuan Provincial Key Laboratory of Animal Breeding and Genetics, Chengdu 610066, China
| | - Ye Cao
- Sichuan Animal Science Academy, Sichuan Provincial Key Laboratory of Animal Breeding and Genetics, Chengdu 610066, China
| | - Xingyu Li
- Sichuan Animal Science Academy, Sichuan Provincial Key Laboratory of Animal Breeding and Genetics, Chengdu 610066, China
| | - Dangjin Liao
- Sichuan Animal Science Academy, Sichuan Provincial Key Laboratory of Animal Breeding and Genetics, Chengdu 610066, China
| | - Yonggang Ye
- Sichuan Animal Science Academy, Sichuan Provincial Key Laboratory of Animal Breeding and Genetics, Chengdu 610066, China
| | - Meng Pan
- Sichuan Animal Science Academy, Sichuan Provincial Key Laboratory of Animal Breeding and Genetics, Chengdu 610066, China
| | - Jianqiang Ye
- Sichuan Animal Science Academy, Sichuan Provincial Key Laboratory of Animal Breeding and Genetics, Chengdu 610066, China
| | - Yong Wei
- Sichuan Animal Science Academy, Sichuan Provincial Key Laboratory of Animal Breeding and Genetics, Chengdu 610066, China
| | - Lu Xiao
- Sichuan Animal Science Academy, Sichuan Provincial Key Laboratory of Animal Breeding and Genetics, Chengdu 610066, China
| | - Junni Tang
- College of Life Science and Technology, Southwest Minzu University, Chengdu, 610041, China
| | - Runmin Kang
- Sichuan Animal Science Academy, Sichuan Provincial Key Laboratory of Animal Breeding and Genetics, Chengdu 610066, China.
| | - Jin Xie
- Sichuan Animal Science Academy, Sichuan Provincial Key Laboratory of Animal Breeding and Genetics, Chengdu 610066, China.
| | - Long Zhou
- College of Life Science and Technology, Southwest Minzu University, Chengdu, 610041, China.
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Pan Q, Li Q, Deng W, Zhao D, Qi L, Huang W, Ma L, Li H, Li Y, Lyu X, Wang A, Yao H, Guo L, Xing X. Prevalence and Diagnosis of Diabetic Cardiovascular Autonomic Neuropathy in Beijing, China: A Retrospective Multicenter Clinical Study. Front Neurosci 2019; 13:1144. [PMID: 31708736 PMCID: PMC6823192 DOI: 10.3389/fnins.2019.01144] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Accepted: 10/10/2019] [Indexed: 12/15/2022] Open
Abstract
Cardiovascular autonomic neuropathy (CAN) is a debilitating condition occurring among diabetic patients especially those with long duration of disease. Whereas incidences and treatment of CAN has been well described for Western populations, fewer studies have been conducted among the Chinese. This study, therefore, aimed to assess the prevalence of CAN among sampled Chinese diabetic patients. Accordingly, 2,048 participants with a history of type 1 diabetes mellitus (T1DM, 73) and type 2 diabetes mellitus (T2DM, 1975) were randomly sampled from 13 hospitals. Patients’ biodata were recorded, and autonomic nervous system function tests performed to aid in the preliminary diagnosis of CAN. The final CAN diagnosis was based on the Ewing’s test in which heart rate variation (HRV) values were evaluated through deep-breathing (DB), lying-to-standing (LS), and Valsalva (V) tests. Systolic blood pressure (SBP) variation values were also evaluated through LS. In the T1DM group, 61.6% patients were diagnosed with CAN and no differences were observed in the baseline and clinical data between this group and those without CAN (P > 0.05). In the T2DM group, 62.6% patients were diagnosed with CAN and statistically significant differences were found between the CAN and non- CAN group with regards to age, duration of diabetes, metformin treatment, retinopathy, and hypertension history (P < 0.05). The most common manifestations of CAN included weakness (28.6%), dizziness (23.4%), frequent urination (19.6%), upper body sweating (18.3%), and nocturia (15.9%). Additionally, duration of disease and age were independent risk factors for CAN in T1DM and T2DM, respectively. On diagnosis, a combination of the V test + LS test provided the highest sensitivity of detecting CAN among T1DM group (sensitivity = 97.6%, AUC = 0.887) while for T2DM category, DB test had the highest sensitivity (83.6%), and maximal AUC (0.856) was found with V test + DB test. The overall prevalence of diabetes with CAN in the study was up to 63%.
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Affiliation(s)
- Qi Pan
- Department of Endocrinology, National Center of Gerontology, Beijing Hospital, Beijing, China
| | - Quanmin Li
- The PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Wei Deng
- Department of Endocrinology, Beijing Jishuitan Hospital, Beijing, China
| | - Dong Zhao
- Center for Endocrine Metabolism and Immune Diseases, Luhe Hospital, Capital Medical University, Beijing, China
| | - Lin Qi
- Department of Endocrinology, Beijing Yanhua Hospital, Beijing, China
| | - Wei Huang
- Department of Endocrinology, Beijing Haidian Hospital, Beijing, China
| | - Li Ma
- South Section, Department of Endocrinology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Hongmei Li
- Department of Endocrinology, Emergency General Hospital, Beijing, China
| | - Yufeng Li
- Department of Endocrinology, Beijing Pinggu Hospital, Beijing, China
| | - Xiaofeng Lyu
- Department of Endocrinology, Seventh Medical Center of PLA General Hospital, Beijing, China
| | - Aihong Wang
- PLA Strategic Support Force Characteristic Medical Center, Beijing, China
| | - Hebin Yao
- Department of Endocrinology, Sixth Medical Center of PLA General Hospital, Beijing, China
| | - Lixin Guo
- Department of Endocrinology, National Center of Gerontology, Beijing Hospital, Beijing, China
| | - Xiaoyan Xing
- Department of Endocrinology, China-Japan Friendship Hospital, Beijing, China
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He BC, Liu LL, Chen BL, Zhang F, Su X. The application of next-generation sequencing in diagnosing invasive pulmonary aspergillosis: three case reports. Am J Transl Res 2019; 11:2532-2539. [PMID: 31105860 PMCID: PMC6511794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 01/23/2019] [Indexed: 06/09/2023]
Abstract
Invasive pulmonary aspergillosis (IPA) is a severe infectious disease with high mortality. However, the clinical diagnosis of IPA remains difficult since the microbiological evidence is hard to acquire. The main issue of the current microbiological methods is that they are time-consuming and offer a low yield. Currently, next-generation sequencing (NGS) has become an attractive alternative method for broad-based pathogen discovery due to the rapid turnaround time and high accuracy. This article describes 3 cases of IPA. Two patients had a history of chronic obstructive pulmonary disease (COPD) and asthma, and the other patient had no underlying diseases. The Aspergillus fumigatus gene was found in the bronchoalveolar lavage fluid in all three cases by NGS. This report explores the role of NGS in the diagnosis of IPA and emphasizes that IPA may occur in non-neutropenic patients.
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Affiliation(s)
- Bin-Chan He
- Department of Respiratory and Critical Care Medicine, Jinling Hospital, Medical School of Nanjing UniversityNanjing 210002, China
| | - Lu-Lu Liu
- Department of Respiratory and Critical Care Medicine, Jinling Hospital, Medical School of Nanjing UniversityNanjing 210002, China
| | - Bi-Lin Chen
- Department of Respiratory and Critical Care Medicine, Jinling Hospital, Medical School of Nanjing UniversityNanjing 210002, China
| | - Fang Zhang
- Department of Respiratory and Critical Care Medicine, Jinling Hospital, Medical School of Nanjing UniversityNanjing 210002, China
| | - Xin Su
- Department of Respiratory and Critical Care Medicine, Jinling Hospital, Medical School of Nanjing UniversityNanjing 210002, China
- Department of Respiratory and Critical Care Medicine, Jinling Hospital, Southern Medical UniversityGuangzhou 510515, Guangdong, China
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Gupta N, Sachdev A, Gupta D, Gupta S. Safety profile of blind bronchial sampling-A prospective study in pediatric intensive care unit. Pediatr Pulmonol 2018; 53:942-947. [PMID: 29566462 DOI: 10.1002/ppul.23989] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 02/24/2018] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To study the safety profile of blind bronchial sampling in mechanically ventilated children. DESIGN Prospective interventional study. SETTING Tertiary level pediatric intensive care unit of a multispecialty hospital. PATIENTS Children aged 1 month to 16 years on mechanical ventilator for ≥48 h, were assessed by clinical pulmonary infection score for ventilator-associated pneumonia (VAP). INTERVENTIONS Blind bronchial sampling was performed following standard procedural guidelines. The hemodynamic, ventilation parameters, and arterial blood gases done before, and in next 24 h post procedure were recorded and compared. MEASUREMENTS AND MAIN RESULTS Among the 40 enrolled children, VAP was suspected at 5.8 ± 3.7 days post intubation with insignificant increase in median (IQR) PELOD score to 15 (11-23) from 13.5 (11-23) (P value 0.29). A statistically significant increase in mean blood pressure (75.5 ± 14.7 to 79.1 ± 14.2, P 0.04) and transient drop in SpO2 (98.2 ± 2.3 to 92.2 ± 9.2, P < 0.001) were noted with insignificant change in heart rate (128.7 ± 25.6 vs 132.0 ± 30.8, P 0.52), though these variations were clinically not significant. There were no major complications like significant airway bleed, arrhythmia, air leaks, edema, and change in pulmonary infiltrates during the procedure. There were no significant (either clinical or statistical) effects of BBS procedure, whether transient or prolonged, on ventilatory requirements or gas exchange parameters. CONCLUSIONS Blind bronchial sampling is a safe procedure in children with no major adverse events related to hemodynamics, oxygenation, and ventilation parameters.
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Affiliation(s)
- Neeraj Gupta
- Consultant, Division of Pediatric Emergency, Critical Care, Pulmonology & Allergic Disorders, Institute of Child Health Sir Ganga Ram Hospital, Rajinder Nagar, New Delhi, India
| | - Anil Sachdev
- Sir Ganga Ram Hospital, Rajinder Nagar, New Delhi, India
| | - Dhiren Gupta
- Sir Ganga Ram Hospital, Rajinder Nagar, New Delhi, India
| | - Suresh Gupta
- Sir Ganga Ram Hospital, Rajinder Nagar, New Delhi, India
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Mahmoudi S, Pourakbari B, Mamishi S. Interferon Gamma Release Assay in response to PE35/PPE68 proteins: a promising diagnostic method for diagnosis of latent tuberculosis. Eur Cytokine Netw 2017; 28:36-40. [PMID: 28840843 DOI: 10.1684/ecn.2017.0391] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Tuberculosis control relies on the identification and preventive treatment of people who are latently infected with Mycobacterium tuberculosis (Mtb). PE/PPE proteins have been reported to elicit CD4 and/or CD8 responses either in the form of whole recombinant proteins or as individual peptides. Very few of the PE and PPE proteins have been previously tested for responses in patients with TB and healthy donors. This is the first study to evaluate the Interferon Gamma Release Assay (IGRA) after stimulation with PE35 and PPE68. The antigen-specific levels of IFN-γ following stimulation with QuantiFERON-TB gold in-tube (QFT-G-IT) antigens, and PE35 and PPE68 recombinant proteins were evaluated in 79 children and 102 adults, respectively. Using QFT-G-IT kit, latent tuberculosis infection (LTBI) was detected in 26 children (33%) and 41 adults (40%); IGRA following stimulation with PE35 and PPE68 recombinant proteins, was positive, respectively, in 36 (46%) and 32 (40.5%) children, respectively. In addition, 53 adults (52%) had positive results following stimulation with these two proteins. The sensitivity and specificity of IGRA following stimulation with recombinant PE35 in children were 76% and 80%, and following stimulation with recombinant PPE68 in this group, it was 73% and 75%, respectively. Meanwhile, there is no gold standard test for LTBI. Our designed tests using PE35 and PPE68 PE/PPE proteins, two PE/PPE proteins not present in BCG vaccins, which elicit CD4 and/or CD8 responses, might be helpful for rapid diagnosis of TB and improve the detection of LTBI. However, further validation studies to determine the advantage of IGRAs using these proteins, alone or combined, are highly recommended.
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Sharifov OF, Schiros CG, Aban I, Perry GJ, Dell'italia LJ, Lloyd SG, Denney TS, Gupta H. Left Ventricular Torsion Shear Angle Volume Approach for Noninvasive Evaluation of Diastolic Dysfunction in Preserved Ejection Fraction. J Am Heart Assoc 2017; 7:JAHA.117.007039. [PMID: 29288156 PMCID: PMC5778962 DOI: 10.1161/jaha.117.007039] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Background Accurate noninvasive diagnostic tools for evaluating left ventricular (LV) diastolic dysfunction (LVDD) are limited in preserved LV ejection fraction. We previously proposed the relationship of normalized rate of change in LV torsion shear angle (φ′) to corresponding rate of change in LV volume (V′) during early diastole (represented as −dφ′/dV′) as a measure of LV diastolic function. We prospectively evaluated diagnostic accuracy of −dφ′/dV′ in respect to invasive LV parameters. Methods and Results Participants (n=36, age 61±7 years) with LV ejection fraction ≥50% and no acute myocardial infarction undergoing coronary angiography for chest pain and/or dyspnea evaluation were studied. High‐fidelity invasive LV pressure measurements and cardiac magnetic resonance imaging with tissue tagging were performed. τ, the time constant of LV diastolic relaxation, was 58±10 milliseconds (mean±SD), and LV end‐diastolic pressure was 14.5±5.5 mm Hg. Cardiac magnetic resonance imaging‐derived −dφ′/dV′ was 5.6±3.7. The value of −dφ′/dV′ correlated with both τ and LV end‐diastolic pressure (r=0.39 and 0.36, respectively, P<0.05). LVDD was defined as τ>48 milliseconds and LV end‐diastolic pressure >12 mm Hg (LVDD1), or, alternatively, τ>48 milliseconds and LV end‐diastolic pressure >16 mm Hg (LVDD2). Area under the curve (AUC) of −dφ′/dV′ for identifying LVDD1 was 0.83 (0.67‐0.98, P=0.001), with sensitivity/specificity of 72%/100% for −dφ′/dV′ ≥6.2. AUC of −dφ′/dV′ for identifying LVDD_2 was 0.82 (0.64‐1.00, P=0.006), with sensitivity/specificity of 76%/85% for −dφ′/dV′ ≥6.9. There were good limits of agreement between pre‐ and post‐nitroglycerin −dφ′/dV′. Conclusions The −dφ′/dV′ obtained from the LV torsion volume loop is a promising parameter for assessing global LVDD with preserved LV ejection fraction and requires further evaluation.
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Affiliation(s)
- Oleg F Sharifov
- Department of Medicine, University of Alabama at Birmingham, AL
| | - Chun G Schiros
- Department of Medicine, University of Alabama at Birmingham, AL
| | - Inmaculada Aban
- Department of Biostatistics, University of Alabama at Birmingham, AL
| | - Gilbert J Perry
- Department of Medicine, University of Alabama at Birmingham, AL
- VA Medical Center, Birmingham, AL
| | - Louis J Dell'italia
- Department of Medicine, University of Alabama at Birmingham, AL
- VA Medical Center, Birmingham, AL
| | - Steven G Lloyd
- Department of Medicine, University of Alabama at Birmingham, AL
- VA Medical Center, Birmingham, AL
| | - Thomas S Denney
- Department of Electrical and Computer Engineering, Auburn University, Auburn, AL
| | - Himanshu Gupta
- Department of Medicine, University of Alabama at Birmingham, AL
- VA Medical Center, Birmingham, AL
- Cardiovascular Associates of the Southeast, Birmingham, AL
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Heinen SGH, van den Heuvel DAF, Huberts W, de Boer SW, van de Vosse FN, Delhaas T, de Vries JPPM. In Vivo Validation of Patient-Specific Pressure Gradient Calculations for Iliac Artery Stenosis Severity Assessment. J Am Heart Assoc 2017; 6:JAHA.117.007328. [PMID: 29275367 PMCID: PMC5779042 DOI: 10.1161/jaha.117.007328] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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] [Indexed: 11/24/2022]
Abstract
Background Currently, the decision to treat iliac artery stenoses is mainly based on visual inspection of digital subtraction angiographies. Intra‐arterial pressure measurements can provide clinicians with accurate hemodynamic information. However, pressure measurements are rarely performed because of their invasiveness and the time required. Therefore, the aim of the study was to test the feasibility of a computational model that can predict translesional pressure gradients across iliac artery stenoses on the basis of imaging data only. Methods and Results Patients (N=21) with symptomatic peripheral arterial disease and a peak systolic velocity ratio between 2.5 and 5.0 were included in the study. Patients underwent per‐procedural 3‐dimensional rotational angiography and hyperemic intra‐arterial translesional pressure measurements. Vascular anatomical features were reconstructed from the 3‐dimensional rotational angiography data into an axisymmetrical 2‐dimensional computational mesh, and flow was estimated on the basis of the stenosis geometry. Computational fluid dynamics were performed to predict the pressure gradient and were compared with the measured pressure gradients. A good agreement by overlapping error bars of the predicted and measured pressure gradients was found in 21 of 25 lesions. Stratification of the stenosis on the basis of the predicted pressure gradient into hemodynamic not significant (<10 mm Hg) and hemodynamic significant (≥10 mm Hg) resulted in sensitivity, specificity, and overall predictive values of 95%, 60%, and 88%, respectively. Conclusions The feasibility of the patient‐specific computational model to predict the hyperemic translesional pressure gradient over iliac artery stenosis was successfully tested. Presented results suggest that, with further optimization and corroboration, the model can become a valuable aid to the diagnosis of equivocal iliac artery stenosis. Clinical Trial Registration URL: http://www.trialregister.nl. Unique identifier: NTR5085.
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Affiliation(s)
- Stefan G H Heinen
- Department of Vascular Surgery, St Antonius Hospital, Nieuwegein, The Netherlands .,Department of Biomedical Engineering, CARIM School for Cardiovascular Diseases, Maastricht University Medical Center, Maastricht, The Netherlands
| | | | - Wouter Huberts
- Department of Biomedical Engineering, CARIM School for Cardiovascular Diseases, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Sanne W de Boer
- Department of Radiology, St Antonius Hospital, Nieuwegein, the Netherlands
| | - Frans N van de Vosse
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Tammo Delhaas
- Department of Biomedical Engineering, CARIM School for Cardiovascular Diseases, Maastricht University Medical Center, Maastricht, The Netherlands
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Edwards JD, Koehoorn M, Boyd LA, Sobolev B, Levy AR. Diagnostic Accuracy of Transient Ischemic Attack from Physician Claims. Can J Neurol Sci 2017; 44:397-403. [PMID: 28767034 DOI: 10.1017/cjn.2016.454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Hospitalization data underestimate the occurrence of transient ischemic attack (TIA). As TIA is frequently diagnosed in primary care, methodologies for the accurate ascertainment of a TIA from physician claims data are required for surveillance and health systems planning in this population. The present study evaluated the diagnostic accuracy of multiple algorithms for TIA from a longitudinal population-based physician billing database. METHODS Population-based administrative data from the province of British Columbia were used to identify the base population (1992-2007; N=102,492). Using discharge records for hospital admissions for acute ischemic stroke with a recent (<90 days) TIA as the reference standard, we performed receiver-operating characteristic analyses to calculate sensitivity, specificity, positive and negative predictive values and overall accuracy, and to compare area under the curve for each physician billing algorithm. To evaluate the impact of different case definitions on population-based TIA burden, we also estimated the annual TIA occurrence associated with each algorithm. RESULTS Physician billing algorithms showed low to moderate sensitivity, with the algorithm for two consecutive physician visits within 90 days showing the highest sensitivity at 37.7% (CI 95%=37.4-38.1). All algorithms demonstrated high specificity and moderate to high overall accuracy, resulting in low positive predictive values (≤5%), low discriminability (0.53-0.57) and high false positive rates (1 - specificity). Population-based estimates of TIA occurrence were comparable to prior studies and declined over time. CONCLUSIONS Physician billing data have insufficient sensitivity to identify TIAs but may be used in combination with hospital discharge data to improve the accuracy of estimating the population-based occurrence of TIAs.
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Maiolino G, Rossitto G, Bisogni V, Cesari M, Seccia TM, Plebani M, Rossi GP. Quantitative Value of Aldosterone-Renin Ratio for Detection of Aldosterone-Producing Adenoma: The Aldosterone-Renin Ratio for Primary Aldosteronism (AQUARR) Study. J Am Heart Assoc 2017; 6:JAHA.117.005574. [PMID: 28529209 PMCID: PMC5524101 DOI: 10.1161/jaha.117.005574] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [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] [Indexed: 01/17/2023]
Abstract
Background Current guidelines recommend use of the aldosterone‐renin ratio (ARR) for the case detection of primary aldosteronism followed by confirmatory tests to exclude false‐positive results from further diagnostic workup. We investigated the hypothesis that this could be unnecessary in patients with a high ARR value if the quantitative information carried by the ARR is taken into due consideration. Methods and Results We interrogated 2 large data sets of prospectively collected patients studied with the same predefined protocol, which included the captopril challenge test. We used an unambiguous diagnosis of aldosterone‐producing adenoma as reference index. We also assessed whether the post‐captopril ARR and plasma aldosterone concentration fall furnished a diagnostic gain over baseline ARR values. We found that the false‐positive rate fell exponentially, and, conversely, the specificity increased with rising ARR values. At receiver operating characteristics curves and diagnostic odds ratio analysis, the high baseline ARR values implied very high positive likelihood ratio and diagnostic odds ratio values. The baseline and post‐captopril ARR showed similar diagnostic accuracy (area under the receiver operating characteristics curve) in both the exploratory and validation cohorts, indicating lack of diagnostic gain with this confirmatory test (between‐area under the curve difference, 0.005; 95% CI, −0.031 to 0.040; P=0.7 for comparison, and 0.05; 95% CI, −0.061 to 0.064; P=0.051 for comparison, respectively). Conclusions These results indicate that the ARR conveys key quantitative information that, if properly used, can simplify the diagnostic workup, resulting in saving of money and resources. This can offer the chance of diagnosis and ensuing adrenalectomy to a larger number of hypertensive patients, ultimately resulting in better control of blood pressure.
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Affiliation(s)
- Giuseppe Maiolino
- Clinica dell'Ipertensione Arteriosa, and Laboratory Medicine, University of Padua, Italy
| | - Giacomo Rossitto
- Clinica dell'Ipertensione Arteriosa, and Laboratory Medicine, University of Padua, Italy
| | - Valeria Bisogni
- Clinica dell'Ipertensione Arteriosa, and Laboratory Medicine, University of Padua, Italy
| | - Maurizio Cesari
- Clinica dell'Ipertensione Arteriosa, and Laboratory Medicine, University of Padua, Italy
| | - Teresa Maria Seccia
- Clinica dell'Ipertensione Arteriosa, and Laboratory Medicine, University of Padua, Italy
| | - Mario Plebani
- Department of Medicine - DIMED, University of Padua, Italy
| | - Gian Paolo Rossi
- Clinica dell'Ipertensione Arteriosa, and Laboratory Medicine, University of Padua, Italy
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Abstract
BACKGROUND Diabetic nephropathy (DN) is one of the foremost causes of mortality in diabetic patients as a result of increased urinary albumin excretion (UAE) rate and compromised renal function. INTRODUCTION Determination of increased excretion of albumin in urine chiefly attribute to the onset and progression of DN. However, due to certain limitations of albuminuria, the search for more sensitive, specific and reliable renal biomarkers is required for early prediction of DN. METHODS Bibliographic investigation was made to scrutinize the data reporting relevant biomarkers associated with DN and may be used to predict the onset and progression of nephropathy. RESULT AND CONCLUSION Optimization of biomarkers for a clinical situation requires a prospective validation in large numbers of patients with diabetic nephropathy and needs to be performed in different critically ill populations.
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Affiliation(s)
- Lalit Kishore
- M.M. College of Pharmacy, Maharishi Markandeshwar University, Mullana-Ambala, Haryana 133207. India
| | - Navpreet Kaur
- M.M. College of Pharmacy, Maharishi Markandeshwar University, Mullana-Ambala, Haryana 133207. India
| | - Randhir Singh
- M.M. College of Pharmacy, Maharishi Markandeshwar University, Mullana-Ambala, Haryana 133207. India
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Honda Y, Nagai T, Ikeda Y, Sakakibara M, Asakawa N, Nagano N, Nakai M, Nishimura K, Sugano Y, Ohta-Ogo K, Asaumi Y, Aiba T, Kanzaki H, Kusano K, Noguchi T, Yasuda S, Tsutsui H, Ishibashi-Ueda H, Anzai T. Myocardial Immunocompetent Cells and Macrophage Phenotypes as Histopathological Surrogates for Diagnosis of Cardiac Sarcoidosis in Japanese. J Am Heart Assoc 2016; 5:JAHA.116.004019. [PMID: 27856486 PMCID: PMC5210336 DOI: 10.1161/jaha.116.004019] [Citation(s) in RCA: 12] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND The histological diagnosis of cardiac sarcoidosis (CS) is based on the presence of myocardial granulomas; however, the sensitivity of endomyocardial biopsy is relatively low. We investigated whether immunocompetent cells including dendritic cells (DC) and macrophages in nongranuloma sections of endomyocardial biopsy samples could be histopathological surrogates for CS diagnosis. METHODS AND RESULTS The numbers of DC and macrophages were investigated in 95 consecutive CS patients and 50 patients with nonischemic cardiomyopathy as controls. All patients underwent endomyocardial biopsy, and immunohistochemical staining was performed on all samples. We examined these immunocompetent cells in nongranuloma sections in CS patients diagnosed by the presence of myocardial granulomas (n=26) and in CS patients without myocardial granulomas diagnosed by the Japanese Ministry of Health Welfare 2007 criteria (n=65) or the Heart Rhythm Society 2014 criteria (n=26). In CS patients with and without myocardial granulomas, CD209+ DC and CD68+ macrophages were more frequently observed (P<0.01) and CD163+M2 macrophages were less frequently observed (P<0.01) in nongranuloma sections compared to controls. Furthermore, the combination of decreased CD163+M2/CD68+ macrophage ratio and increased number of CD209+ DC in nongranuloma sections of CS patients demonstrated high specificity (100%, 95% CI 92.7-100) for CS diagnosis with each diagnostic criteria and the presence of myocardial granulomas. CONCLUSIONS Increased number of DC and decreased M2 among all macrophages in nongranuloma sections of myocardium showed high specificity for CS diagnosis, suggesting DC and macrophage phenotypes as histopathological surrogates for the diagnosis of CS.
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Affiliation(s)
- Yasuyuki Honda
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Toshiyuki Nagai
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Yoshihiko Ikeda
- Department of Clinical Pathology, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Mamoru Sakakibara
- Department of Cardiovascular Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Naoya Asakawa
- Department of Cardiovascular Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Nobutaka Nagano
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Michikazu Nakai
- Department of Preventive Medicine and Epidemiology Informatics, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Kunihiro Nishimura
- Department of Preventive Medicine and Epidemiology Informatics, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Yasuo Sugano
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Keiko Ohta-Ogo
- Department of Clinical Pathology, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Yasuhide Asaumi
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Takeshi Aiba
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Hideaki Kanzaki
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Kengo Kusano
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Teruo Noguchi
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Satoshi Yasuda
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Hiroyuki Tsutsui
- Department of Cardiovascular Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Hatsue Ishibashi-Ueda
- Department of Clinical Pathology, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Toshihisa Anzai
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
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Wu YL, Liu YM, Chen HJ, Wang YS, Lu Y. Negative pathology of ureteral carcinoma significantly delaying the diagnosis of the primary tumor of osteoblastic metastases: A case report and review of the literature. Oncol Lett 2016; 12:2417-2420. [PMID: 27698807 PMCID: PMC5038518 DOI: 10.3892/ol.2016.5023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 06/29/2016] [Indexed: 02/05/2023] Open
Abstract
Ureteral urothelial carcinoma (UC) is a rare malignant tumor. The most common clinical manifestations of ureteral UC are hematuria, increased urinary frequency, dysuria and pain. The diagnosis of ureteral UC is made via radiography, endoscopy and pathology. Although osteoblastic destruction is usually observed in metastasis of prostate cancer, UC can also be a reason for osteoblastic metastasis. The present study reports the case of a 66-year-old man presenting with osteoblastic metastases, in which the primary tumor was finally diagnosed as a ureteral UC. However, the lack of pathological evidence significantly delayed the diagnosis of the primary tumor (>6 months), even though the results of radiographic examination, and the type and mode of bone metastases significantly suggested a ureteral UC. The case reveals that a suitable screening test should be recommended for patients at high risk due to the possibility of a negative pathology result for ureteral UC. Additionally, a more efficient diagnostic method is required. Moreover, the possibility of new diagnostic criterion that do not rely on the pathology of primary foci in ureteral UC should be considered in future.
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Affiliation(s)
- Ya-Lan Wu
- Department of Oncology, Chengdu Shang Jin Nan Fu Hospital, Chengdu, Sichuan 610041, P.R. China
- Department of Thoracic Oncology, Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan 610041, P.R. China
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yong-Mei Liu
- Department of Thoracic Oncology, Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan 610041, P.R. China
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Hui-Jiao Chen
- Department of Pathology, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yong-Sheng Wang
- Department of Thoracic Oncology, Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan 610041, P.R. China
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - You Lu
- Department of Thoracic Oncology, Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan 610041, P.R. China
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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Hayashi K, Konno T, Fujino N, Itoh H, Fujii Y, Imi-Hashida Y, Tada H, Tsuda T, Tanaka Y, Saito T, Ino H, Kawashiri MA, Ohta K, Horie M, Yamagishi M. Impact of Updated Diagnostic Criteria for Long QT Syndrome on Clinical Detection of Diseased Patients: Results From a Study of Patients Carrying Gene Mutations. JACC Clin Electrophysiol 2016; 2:279-287. [PMID: 29766885 DOI: 10.1016/j.jacep.2016.01.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 12/11/2015] [Accepted: 01/07/2016] [Indexed: 01/01/2023]
Abstract
OBJECTIVES In this study, we scored patients with long QT syndrome (LQTS) according to the different Schwartz diagnostic criteria from 1993, 2006, and 2011, and to examine the validation of the criteria in relevance to the frequency of LQTS-related gene mutation. BACKGROUND Although updated diagnostic criteria have been used in clinical settings, few data exist regarding their impact on the diagnosis of LQTS. METHODS We used a cohort of 132 patients who presented with prolonged QTc intervals and/or abnormal clinical history in cardiac screening and who underwent exercise stress testing. LQTS scores of ≥3.5 points according to the 2006 and the 2011 criteria were considered to indicate a high probability of LQTS, as opposed to the 4 points used by the 1993 criteria. The 2011 criteria were updated by adding the evaluation of the recovery phase of exercise. RESULTS The 2011 criteria significantly increased the number of high probability patients (n = 62) compared with the 1993 criteria (n = 32; p = 0.0002) or the 2006 criteria (n = 36; p = 0.0014). The percentage of mutation carriers in those with an intermediate score, which was rather high using the 1993 (53%) and 2006 criteria (53%), was greatly reduced with the 2011 criteria (15%, p = 0.0014 vs. the 1993 criteria, and p = 0.0013 vs. the 2006 criteria). Among 54 mutation carriers, the 1993, the 2006, and the 2011 criteria identified a high probability of carriers in 25 patients (46% sensitivity and 91% specificity), 27 patients (50% sensitivity and 88% specificity), and 48 patients (89% sensitivity and 82% specificity), respectively. CONCLUSIONS The use of the 2011 criteria will facilitate the diagnosis of LQTS and will decrease the number of false negative results.
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Affiliation(s)
- Kenshi Hayashi
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - Tetsuo Konno
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - Noboru Fujino
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - Hideki Itoh
- Department of Cardiovascular and Respiratory Medicine, Shiga University of Medical Science, Otsu, Japan
| | - Yusuke Fujii
- Department of Cardiovascular and Respiratory Medicine, Shiga University of Medical Science, Otsu, Japan
| | | | - Hayato Tada
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - Toyonobu Tsuda
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - Yoshihiro Tanaka
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - Takekatsu Saito
- Department of Pediatrics, Kanazawa University, Kanazawa, Japan
| | - Hidekazu Ino
- Department of Cardiovascular Medicine, Komatsu Municipal Hospital, Komatsu, Japan
| | - Masa-Aki Kawashiri
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - Kunio Ohta
- Department of Pediatrics, Kanazawa University, Kanazawa, Japan
| | - Minoru Horie
- Department of Cardiovascular and Respiratory Medicine, Shiga University of Medical Science, Otsu, Japan
| | - Masakazu Yamagishi
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan.
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Calvo D, Ávila P, García-Fernández FJ, Pachón M, Bravo L, Eidelman G, Hernández J, Miracle ÁL, Rubín J, Pérez D, Arenal Á, Atienza F, Jimenez-Candil J, Arias MÁ, Datino T, Martínez-Camblor P, Gonzalez-Torrecilla E, Almendral J. Differential Responses of the Septal Ventricle and the Atrial Signals During Ongoing Entrainment: A Method to Differentiate Orthodromic Reciprocating Tachycardia Using Septal Accessory Pathways From Atypical Atrioventricular Nodal Reentry. Circ Arrhythm Electrophysiol 2015; 8:1201-9. [PMID: 26334054 DOI: 10.1161/circep.115.002949] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2015] [Accepted: 08/12/2015] [Indexed: 12/13/2022]
Abstract
BACKGROUND Differential diagnosis between tachycardia mediated by septal accessory pathways (AP) and atypical atrioventricular nodal reentry can be challenging. We hypothesized that an immediate versus delayed pace-related advancement of the atrial electrogram, once the local septal parahisian ventricular electrogram (SVE) has been advanced, may help in this diagnosis. METHODS AND RESULTS We focused on differential timing between SVE and atrial signals at the initiation of continuous right ventricular apical pacing during tachycardia. SVE advancement preceding atrial reset was defined as SVE advanced by the paced wave fronts while atrial signal continued at the tachycardia cycle. We analyzed 51 atypical atrioventricular nodal reentry (45% posterior type) and 80 AP tachycardias (anteroseptal [10], parahisian [18], midseptal [12], and posteroseptal [40]). SVE advancement preceding atrial reset was observed in 98% of atrioventricular nodal reentries during 4±1.1 cycles; this phenomena was observed in 6 (8%) of the atrioventricular reentrant tachycardia mediated by septal AP (P<0.001; sensitivity 98%; specificity 93%; positive predictive value 90%; negative predictive value 99%) and lasted 1 single cycle (P<0.001). Right posteroseptal AP tachycardias were distinctly characterized by atrial reset preceding SVE advancement (with ventricular fusion; specificity 100%; positive predictive value 100%). In 11 cases, it was impossible to achieve sustain entrainment. In all of them, the differential responses at the entrainment attempt allowed for appropriate diagnosis. CONCLUSIONS The differential response of the SVE and the atrial electrogram at the initiation of continuous right ventricular apical pacing during tachycardia effectively distinguishes between atypical atrioventricular nodal reentry and atrioventricular reentrant tachycardia mediated by septal APs.
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Affiliation(s)
- David Calvo
- From the Cardiology Department, Arrhythmia Unit (D.C., J.R., D.P.), and Department of Statistics (P.M.-C.), Hospital Universitario Central de Asturias, Oviedo, Spain; Cardiology Department, Arrhythmia Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain (P.Á., L.B., G.E., Á.A., F.A., T.D., E.G.-T.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Burgos, Burgos, Spain (F.J.G.-F.); Cardiology Department, Arrhythmia Unit, Hospital Virgen de la Salud, Toledo, Spain (M.P., M.A.A.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Salamanca, Salamanca, Spain (J.H., J.J.-C.); and Cardiology Department, Hospital Universitario Rey Juan Carlos (Á.L.M.), and Cardiology Department, Arrhythmia Unit, Grupo Hospital Madrid (J.A.), Madrid, Spain.
| | - Pablo Ávila
- From the Cardiology Department, Arrhythmia Unit (D.C., J.R., D.P.), and Department of Statistics (P.M.-C.), Hospital Universitario Central de Asturias, Oviedo, Spain; Cardiology Department, Arrhythmia Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain (P.Á., L.B., G.E., Á.A., F.A., T.D., E.G.-T.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Burgos, Burgos, Spain (F.J.G.-F.); Cardiology Department, Arrhythmia Unit, Hospital Virgen de la Salud, Toledo, Spain (M.P., M.A.A.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Salamanca, Salamanca, Spain (J.H., J.J.-C.); and Cardiology Department, Hospital Universitario Rey Juan Carlos (Á.L.M.), and Cardiology Department, Arrhythmia Unit, Grupo Hospital Madrid (J.A.), Madrid, Spain
| | - F Javier García-Fernández
- From the Cardiology Department, Arrhythmia Unit (D.C., J.R., D.P.), and Department of Statistics (P.M.-C.), Hospital Universitario Central de Asturias, Oviedo, Spain; Cardiology Department, Arrhythmia Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain (P.Á., L.B., G.E., Á.A., F.A., T.D., E.G.-T.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Burgos, Burgos, Spain (F.J.G.-F.); Cardiology Department, Arrhythmia Unit, Hospital Virgen de la Salud, Toledo, Spain (M.P., M.A.A.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Salamanca, Salamanca, Spain (J.H., J.J.-C.); and Cardiology Department, Hospital Universitario Rey Juan Carlos (Á.L.M.), and Cardiology Department, Arrhythmia Unit, Grupo Hospital Madrid (J.A.), Madrid, Spain
| | - Marta Pachón
- From the Cardiology Department, Arrhythmia Unit (D.C., J.R., D.P.), and Department of Statistics (P.M.-C.), Hospital Universitario Central de Asturias, Oviedo, Spain; Cardiology Department, Arrhythmia Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain (P.Á., L.B., G.E., Á.A., F.A., T.D., E.G.-T.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Burgos, Burgos, Spain (F.J.G.-F.); Cardiology Department, Arrhythmia Unit, Hospital Virgen de la Salud, Toledo, Spain (M.P., M.A.A.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Salamanca, Salamanca, Spain (J.H., J.J.-C.); and Cardiology Department, Hospital Universitario Rey Juan Carlos (Á.L.M.), and Cardiology Department, Arrhythmia Unit, Grupo Hospital Madrid (J.A.), Madrid, Spain
| | - Loreto Bravo
- From the Cardiology Department, Arrhythmia Unit (D.C., J.R., D.P.), and Department of Statistics (P.M.-C.), Hospital Universitario Central de Asturias, Oviedo, Spain; Cardiology Department, Arrhythmia Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain (P.Á., L.B., G.E., Á.A., F.A., T.D., E.G.-T.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Burgos, Burgos, Spain (F.J.G.-F.); Cardiology Department, Arrhythmia Unit, Hospital Virgen de la Salud, Toledo, Spain (M.P., M.A.A.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Salamanca, Salamanca, Spain (J.H., J.J.-C.); and Cardiology Department, Hospital Universitario Rey Juan Carlos (Á.L.M.), and Cardiology Department, Arrhythmia Unit, Grupo Hospital Madrid (J.A.), Madrid, Spain
| | - Gabriel Eidelman
- From the Cardiology Department, Arrhythmia Unit (D.C., J.R., D.P.), and Department of Statistics (P.M.-C.), Hospital Universitario Central de Asturias, Oviedo, Spain; Cardiology Department, Arrhythmia Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain (P.Á., L.B., G.E., Á.A., F.A., T.D., E.G.-T.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Burgos, Burgos, Spain (F.J.G.-F.); Cardiology Department, Arrhythmia Unit, Hospital Virgen de la Salud, Toledo, Spain (M.P., M.A.A.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Salamanca, Salamanca, Spain (J.H., J.J.-C.); and Cardiology Department, Hospital Universitario Rey Juan Carlos (Á.L.M.), and Cardiology Department, Arrhythmia Unit, Grupo Hospital Madrid (J.A.), Madrid, Spain
| | - Jesús Hernández
- From the Cardiology Department, Arrhythmia Unit (D.C., J.R., D.P.), and Department of Statistics (P.M.-C.), Hospital Universitario Central de Asturias, Oviedo, Spain; Cardiology Department, Arrhythmia Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain (P.Á., L.B., G.E., Á.A., F.A., T.D., E.G.-T.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Burgos, Burgos, Spain (F.J.G.-F.); Cardiology Department, Arrhythmia Unit, Hospital Virgen de la Salud, Toledo, Spain (M.P., M.A.A.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Salamanca, Salamanca, Spain (J.H., J.J.-C.); and Cardiology Department, Hospital Universitario Rey Juan Carlos (Á.L.M.), and Cardiology Department, Arrhythmia Unit, Grupo Hospital Madrid (J.A.), Madrid, Spain
| | - Ángel L Miracle
- From the Cardiology Department, Arrhythmia Unit (D.C., J.R., D.P.), and Department of Statistics (P.M.-C.), Hospital Universitario Central de Asturias, Oviedo, Spain; Cardiology Department, Arrhythmia Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain (P.Á., L.B., G.E., Á.A., F.A., T.D., E.G.-T.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Burgos, Burgos, Spain (F.J.G.-F.); Cardiology Department, Arrhythmia Unit, Hospital Virgen de la Salud, Toledo, Spain (M.P., M.A.A.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Salamanca, Salamanca, Spain (J.H., J.J.-C.); and Cardiology Department, Hospital Universitario Rey Juan Carlos (Á.L.M.), and Cardiology Department, Arrhythmia Unit, Grupo Hospital Madrid (J.A.), Madrid, Spain
| | - José Rubín
- From the Cardiology Department, Arrhythmia Unit (D.C., J.R., D.P.), and Department of Statistics (P.M.-C.), Hospital Universitario Central de Asturias, Oviedo, Spain; Cardiology Department, Arrhythmia Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain (P.Á., L.B., G.E., Á.A., F.A., T.D., E.G.-T.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Burgos, Burgos, Spain (F.J.G.-F.); Cardiology Department, Arrhythmia Unit, Hospital Virgen de la Salud, Toledo, Spain (M.P., M.A.A.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Salamanca, Salamanca, Spain (J.H., J.J.-C.); and Cardiology Department, Hospital Universitario Rey Juan Carlos (Á.L.M.), and Cardiology Department, Arrhythmia Unit, Grupo Hospital Madrid (J.A.), Madrid, Spain
| | - Diego Pérez
- From the Cardiology Department, Arrhythmia Unit (D.C., J.R., D.P.), and Department of Statistics (P.M.-C.), Hospital Universitario Central de Asturias, Oviedo, Spain; Cardiology Department, Arrhythmia Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain (P.Á., L.B., G.E., Á.A., F.A., T.D., E.G.-T.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Burgos, Burgos, Spain (F.J.G.-F.); Cardiology Department, Arrhythmia Unit, Hospital Virgen de la Salud, Toledo, Spain (M.P., M.A.A.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Salamanca, Salamanca, Spain (J.H., J.J.-C.); and Cardiology Department, Hospital Universitario Rey Juan Carlos (Á.L.M.), and Cardiology Department, Arrhythmia Unit, Grupo Hospital Madrid (J.A.), Madrid, Spain
| | - Ángel Arenal
- From the Cardiology Department, Arrhythmia Unit (D.C., J.R., D.P.), and Department of Statistics (P.M.-C.), Hospital Universitario Central de Asturias, Oviedo, Spain; Cardiology Department, Arrhythmia Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain (P.Á., L.B., G.E., Á.A., F.A., T.D., E.G.-T.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Burgos, Burgos, Spain (F.J.G.-F.); Cardiology Department, Arrhythmia Unit, Hospital Virgen de la Salud, Toledo, Spain (M.P., M.A.A.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Salamanca, Salamanca, Spain (J.H., J.J.-C.); and Cardiology Department, Hospital Universitario Rey Juan Carlos (Á.L.M.), and Cardiology Department, Arrhythmia Unit, Grupo Hospital Madrid (J.A.), Madrid, Spain
| | - Felipe Atienza
- From the Cardiology Department, Arrhythmia Unit (D.C., J.R., D.P.), and Department of Statistics (P.M.-C.), Hospital Universitario Central de Asturias, Oviedo, Spain; Cardiology Department, Arrhythmia Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain (P.Á., L.B., G.E., Á.A., F.A., T.D., E.G.-T.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Burgos, Burgos, Spain (F.J.G.-F.); Cardiology Department, Arrhythmia Unit, Hospital Virgen de la Salud, Toledo, Spain (M.P., M.A.A.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Salamanca, Salamanca, Spain (J.H., J.J.-C.); and Cardiology Department, Hospital Universitario Rey Juan Carlos (Á.L.M.), and Cardiology Department, Arrhythmia Unit, Grupo Hospital Madrid (J.A.), Madrid, Spain
| | - Javier Jimenez-Candil
- From the Cardiology Department, Arrhythmia Unit (D.C., J.R., D.P.), and Department of Statistics (P.M.-C.), Hospital Universitario Central de Asturias, Oviedo, Spain; Cardiology Department, Arrhythmia Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain (P.Á., L.B., G.E., Á.A., F.A., T.D., E.G.-T.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Burgos, Burgos, Spain (F.J.G.-F.); Cardiology Department, Arrhythmia Unit, Hospital Virgen de la Salud, Toledo, Spain (M.P., M.A.A.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Salamanca, Salamanca, Spain (J.H., J.J.-C.); and Cardiology Department, Hospital Universitario Rey Juan Carlos (Á.L.M.), and Cardiology Department, Arrhythmia Unit, Grupo Hospital Madrid (J.A.), Madrid, Spain
| | - Miguel Ángel Arias
- From the Cardiology Department, Arrhythmia Unit (D.C., J.R., D.P.), and Department of Statistics (P.M.-C.), Hospital Universitario Central de Asturias, Oviedo, Spain; Cardiology Department, Arrhythmia Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain (P.Á., L.B., G.E., Á.A., F.A., T.D., E.G.-T.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Burgos, Burgos, Spain (F.J.G.-F.); Cardiology Department, Arrhythmia Unit, Hospital Virgen de la Salud, Toledo, Spain (M.P., M.A.A.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Salamanca, Salamanca, Spain (J.H., J.J.-C.); and Cardiology Department, Hospital Universitario Rey Juan Carlos (Á.L.M.), and Cardiology Department, Arrhythmia Unit, Grupo Hospital Madrid (J.A.), Madrid, Spain
| | - Tomás Datino
- From the Cardiology Department, Arrhythmia Unit (D.C., J.R., D.P.), and Department of Statistics (P.M.-C.), Hospital Universitario Central de Asturias, Oviedo, Spain; Cardiology Department, Arrhythmia Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain (P.Á., L.B., G.E., Á.A., F.A., T.D., E.G.-T.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Burgos, Burgos, Spain (F.J.G.-F.); Cardiology Department, Arrhythmia Unit, Hospital Virgen de la Salud, Toledo, Spain (M.P., M.A.A.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Salamanca, Salamanca, Spain (J.H., J.J.-C.); and Cardiology Department, Hospital Universitario Rey Juan Carlos (Á.L.M.), and Cardiology Department, Arrhythmia Unit, Grupo Hospital Madrid (J.A.), Madrid, Spain
| | - Pablo Martínez-Camblor
- From the Cardiology Department, Arrhythmia Unit (D.C., J.R., D.P.), and Department of Statistics (P.M.-C.), Hospital Universitario Central de Asturias, Oviedo, Spain; Cardiology Department, Arrhythmia Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain (P.Á., L.B., G.E., Á.A., F.A., T.D., E.G.-T.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Burgos, Burgos, Spain (F.J.G.-F.); Cardiology Department, Arrhythmia Unit, Hospital Virgen de la Salud, Toledo, Spain (M.P., M.A.A.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Salamanca, Salamanca, Spain (J.H., J.J.-C.); and Cardiology Department, Hospital Universitario Rey Juan Carlos (Á.L.M.), and Cardiology Department, Arrhythmia Unit, Grupo Hospital Madrid (J.A.), Madrid, Spain
| | - Esteban Gonzalez-Torrecilla
- From the Cardiology Department, Arrhythmia Unit (D.C., J.R., D.P.), and Department of Statistics (P.M.-C.), Hospital Universitario Central de Asturias, Oviedo, Spain; Cardiology Department, Arrhythmia Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain (P.Á., L.B., G.E., Á.A., F.A., T.D., E.G.-T.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Burgos, Burgos, Spain (F.J.G.-F.); Cardiology Department, Arrhythmia Unit, Hospital Virgen de la Salud, Toledo, Spain (M.P., M.A.A.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Salamanca, Salamanca, Spain (J.H., J.J.-C.); and Cardiology Department, Hospital Universitario Rey Juan Carlos (Á.L.M.), and Cardiology Department, Arrhythmia Unit, Grupo Hospital Madrid (J.A.), Madrid, Spain
| | - Jesús Almendral
- From the Cardiology Department, Arrhythmia Unit (D.C., J.R., D.P.), and Department of Statistics (P.M.-C.), Hospital Universitario Central de Asturias, Oviedo, Spain; Cardiology Department, Arrhythmia Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain (P.Á., L.B., G.E., Á.A., F.A., T.D., E.G.-T.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Burgos, Burgos, Spain (F.J.G.-F.); Cardiology Department, Arrhythmia Unit, Hospital Virgen de la Salud, Toledo, Spain (M.P., M.A.A.); Cardiology Department, Arrhythmia Unit, Hospital Universitario de Salamanca, Salamanca, Spain (J.H., J.J.-C.); and Cardiology Department, Hospital Universitario Rey Juan Carlos (Á.L.M.), and Cardiology Department, Arrhythmia Unit, Grupo Hospital Madrid (J.A.), Madrid, Spain
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Song SM, Sylvatrie-Danne DB, Joo SY, Shin YK, Yu HS, Lee YS, Jung JE, Inoue N, Lee WK, Goo YK, Chung DI, Hong Y. Development of loop-mediated isothermal amplification targeting 18s ribosomal DNA for rapid detection of Azumiobodo hoyamushi (Kinetoplastea). Korean J Parasitol 2014; 52:305-10. [PMID: 25031473 PMCID: PMC4096644 DOI: 10.3347/kjp.2014.52.3.305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 04/03/2014] [Accepted: 04/04/2014] [Indexed: 11/23/2022]
Abstract
Ascidian soft tunic syndrome (AsSTS) caused by Azumiobodo hoyamushi (A. hoyamushi) is a serious aquaculture problem that results in mass mortality of ascidians. Accordingly, the early and accurate detection of A. hoyamushi would contribute substantially to disease management and prevention of transmission. Recently, the loop-mediated isothermal amplification (LAMP) method was adopted for clinical diagnosis of a range of infectious diseases. Here, the authors describe a rapid and efficient LAMP-based method targeting the 18S rDNA gene for detection of A. hoyamushi using ascidian DNA for the diagnosis of AsSTS. A. hoyamushi LAMP assay amplified the DNA of 0.01 parasites per reaction and detected A. hoyamushi in 10 ng of ascidian DNA. To validate A. hoyamushi 18S rDNA LAMP assays, AsSTS-suspected and non-diseased ascidians were examined by microscopy, PCR, and by using the LAMP assay. When PCR was used as a gold standard, the LAMP assay showed good agreement in terms of sensitivity, positive predictive value (PPV), and negative predictive value (NPV). In the present study, a LAMP assay based on directly heat-treated samples was found to be as efficient as DNA extraction using a commercial kit for detecting A. hoyamushi. Taken together, this study shows the devised A. hoyamushi LAMP assay could be used to diagnose AsSTS in a straightforward, sensitive, and specific manner, that it could be used for forecasting, surveillance, and quarantine of AsSTS.
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Affiliation(s)
- Su-Min Song
- Department of Parasitology and Tropical Medicine, Kyungpook National University School of Medicine, Daegu 700-422, Korea
| | | | - So-Young Joo
- Department of Parasitology and Tropical Medicine, Kyungpook National University School of Medicine, Daegu 700-422, Korea
| | - Yun Kyung Shin
- Aquaculture Management Division, National Fisheries Research & Development Institute, Busan 619-705, Korea
| | - Hak Sun Yu
- Department of Parasitology, School of Medicine, Pusan National University, Yangsan 626-870, Korea
| | - Yong-Seok Lee
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, Asan 336-745, Korea
| | - Ji-Eon Jung
- Department of Life Science and Biotechnology, College of Natural Sciences, Soonchunhyang University, Asan 336-745, Korea
| | - Noboru Inoue
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro 080-8555, Japan
| | - Won Kee Lee
- Department of Preventive Medicine, Kyungpook National University School of Medicine, Daegu 700-422, Korea
| | - Youn-Kyoung Goo
- Department of Parasitology and Tropical Medicine, Kyungpook National University School of Medicine, Daegu 700-422, Korea
| | - Dong-Il Chung
- Department of Parasitology and Tropical Medicine, Kyungpook National University School of Medicine, Daegu 700-422, Korea
| | - Yeonchul Hong
- Department of Parasitology and Tropical Medicine, Kyungpook National University School of Medicine, Daegu 700-422, Korea
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Coma M, Valls R, Mas JM, Pujol A, Herranz MA, Alonso V, Naval J. Methods for diagnosing perceived age on the basis of an ensemble of phenotypic features. Clin Cosmet Investig Dermatol 2014; 7:133-7. [PMID: 24790464 PMCID: PMC4000174 DOI: 10.2147/ccid.s52257] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Perceived age has been defined as the age that a person is visually estimated to be on the basis of physical appearance. In a society where a youthful appearance are an object of desire for consumers, and a source of commercial profit for cosmetic companies, this concept has a prominent role. In addition, perceived age is also an indicator of overall health status in elderly people, since old-looking people tend to show higher rates of morbidity and mortality. However, there is a lack of objective methods for quantifying perceived age. METHODS In order to satisfy the need of objective approaches for estimating perceived age, a novel algorithm was created. The novel algorithm uses supervised mathematical learning techniques and error retropropagation for the creation of an artificial neural network able to learn biophysical and clinically assessed parameters of subjects. The algorithm provides a consistent estimation of an individual's perceived age, taking into account a defined set of facial skin phenotypic traits, such as wrinkles and roughness, number of wrinkles, depth of wrinkles, and pigmentation. A nonintervention, epidemiological cross-sectional study of cases and controls was conducted in 120 female volunteers for the diagnosis of perceived age using this novel algorithm. Data collection was performed by clinical assessment of an expert panel and biophysical assessment using the ANTERA 3D(®) device. RESULTS AND DISCUSSION Employing phenotype data as variables and expert assignments as objective data, the algorithm was found to correctly classify the samples with an accuracy of 92.04%. Therefore, we have developed a method for determining the perceived age of a subject in a standardized, consistent manner. Further application of this algorithm is thus a promising approach for the testing and validation of cosmetic treatments and aesthetic surgery, and it also could be used as a screening method for general health status in the population.
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Affiliation(s)
| | | | | | | | | | - Vicente Alonso
- Genocosmetics Laboratory, Barcelona, Spain ; Unidad de Dermatología del Hospital Nisa 9 Octubre de Valencia, Valencia, Spain
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Azzopardi J, Walsh D, Chong C, Taylor C. Impact of geographic location on surgical outcomes of women with breast cancer. ANZ J Surg 2014; 84:735-9. [PMID: 24438049 DOI: 10.1111/ans.12514] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/30/2013] [Indexed: 11/28/2022]
Abstract
BACKGROUND The aim of this study is to use the Breast Surgeons of Australia and New Zealand Quality Audit to evaluate the diagnostic work up and surgical treatment path for Australian women with early breast cancer in relation to geographic location. METHODS We accessed data on patient geographic demographics, diagnostic and surgical procedures and cancer characteristics in 115,872 episodes of early breast cancer reported to the Quality Audit between 1998 and 2012. Tumour size, grade and number, lymph node positivity and lymphovascular invasion are the major prognostic factors adjusted for. RESULTS Core biopsy is the most frequently performed diagnostic method and open biopsy the least (P=0.001). Remote locations have the highest proportion of open biopsies and cities the lowest (13.8 versus 9.8%, P=0.001). The outer regional/remote patient group has a higher likelihood of an open biopsy than city patients (odds ratio 1.5; 95% confidence interval 1.1-2.2 P=0.02). Reconstruction rates are low throughout ranging from 3 to 4% (P=0.001). Cities have the highest proportion of no surgery (1.5%, P=0.001). Cities have the highest proportion of breast conserving surgery and the remote the lowest (64.5% versus 29.9%, P=0.001). Outer regional locations have the highest proportion of mastectomies and cities the lowest (38 versus 29.9%, P=0.001). The likelihood of receiving radiotherapy is associated with geographic location of residence and geographic distribution of the radiotherapy facility (P=0.002, P=0.001). CONCLUSION Geographic location of residence is associated with the diagnostic work up and surgical treatment of Australian women with early breast cancer.
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Affiliation(s)
- David S Resnick
- Nixon Peabody LLP, 100 Summer Street, Boston, MA 02110, USA.
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Abstract
Fish and shellfish diseases are a constant threat to the sustainability and economic viability of aquaculture. Early diagnosis plays a vital role in management of fish and shellfish diseases. Traditionally, various biochemical and serological tests have been used for fish disease diagnosis. However, the time and expertise required for such diagnoses makes it difficult for aquaculturists to easily adopt them under production conditions. Polymerase chain reaction and probe-based nucleic acid detection have become increasingly popular in fish and shellfish diagnostics. Recently, a novel technique called loop-mediated isothermal amplification (LAMP) has been developed, which is highly sensitive and rapid. LAMP has been used for the detection of bacterial, viral, fungal and parasitic diseases in both animal and plants. In aquaculture, LAMP-based detection of pathogens like Edwardsiella tarda, E. ictaluri, Nocardia seriolae, Tetracapsuloides bryosalmonae, white spot syndrome virus and infectious haematopoietic necrosis virus have been reported. In this review, the application of LAMP for the detection of aquaculture-associated pathogens is discussed.
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Affiliation(s)
- R Savan
- Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - T Kono
- Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - T Itami
- Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - M Sakai
- Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
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Valle LM, Valdepérez J, Tirado M, Verduras D, Yus C, Gomollón F. [Failure of rapid serology for Helicobacter pylori as diagnostic method in primary care consultation]. Aten Primaria 2001; 28:126-8. [PMID: 11440650 PMCID: PMC7677983 DOI: 10.1016/s0212-6567(01)78912-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/26/2001] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To evaluate the validity of a rapid serology test for diagnosing Helicobacter pylori infection in our area. DESIGN Longitudinal, prospective study. SETTING Urban primary care centre. MEASUREMENTS As reference tests for defining the presence/absence of Helicobacter pylori, histology and the urease gastric mucous membrane test (Jatrox(R) test) were used. Both tests can be either positive or negative, without intermediate values. RESULTS 47 consecutive patients were included. Histology (confirmed with the urease test) showed infection in 38 cases (80.85% prevalence). The results of rapid serology (95% CI) were: sensitivity 0.66 (0.51-0.81), specificity 1 (1-1), positive predictive value 1 (1-1), and negative predictive value 0.41 (0.2-0-61). CONCLUSIONS In a population with high prevalence of infection, a positive in the rapid serology test confirms infection. However, a negative does not discount infection, which significantly reduces the test's overall diagnostic value. This confirms in the primary care context the findings of hospital-based studies.
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Affiliation(s)
- L M Valle
- Centro de Salud Actur Sur, Hospital Miguel Servet, Zaragoza
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Ellens DJ, de Leeuw PW, Straver PJ, van Balken JA. Comparison of five diagnostic methods for the detection of rotavirus antigens in calf faeces. Med Microbiol Immunol 1978; 166:157-63. [PMID: 214679 PMCID: PMC7086822 DOI: 10.1007/bf02121145] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Immunoelectroosmophoresis, complement fixation, immunofluorescence on inoculated cell cultures, electron microscopy, and an enzyme-linked immunosorbent assay were compared for the detection of rotavirus in faecal samples from calves. Rotavirus particles could be detected in 39 out of 98 faecal samples by electron microscopy. Immunofluorescence, complement fixation, and immunoelectroosmophoresis detected rotavirus antigens in 39, 42, and 30 samples, respectively. The enzyme-linked immunosorbent assay demonstrated rotavirus antigens in 49 faecal samples. The assay is not only sensitive but also simple to perform and suitable for large-scale testing.
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