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Kameli N, Basode VK, Abdulhaq A, Alamoudi MUA, Zain KAM, Ghzwani AH. Prevalence of toxigenic Clostridium difficile in hospitalized patients in the southwestern province of Saudi Arabia: Confirmation using the GeneXpert analysis. Libyan J Med 2024; 19:2294571. [PMID: 38112195 DOI: 10.1080/19932820.2023.2294571] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 12/09/2023] [Indexed: 12/21/2023] Open
Abstract
Clostridium difficile (Clostridioides difficile) is a leading cause of nosocomial infections in hospitalized patients worldwide. Stool samples were collected from 112 inpatients admitted to different hospitals and were screened for C. difficile GDH + toxin A + B by immunoassay, and all positive samples by immunoassay were processed for molecular detection of C. difficile using the GeneXpert assay. C. difficile strains were detected in 12 (10.71%) out of 112 stool samples using the GDH + toxin A + B immunoassay method and toxigenic C. difficile was confirmed in 5 stool samples using the GeneXpert molecular assay. C. difficile strains were also detected in 7 (8.97%) out of 78 stool samples from intensive care unit patients, 3 (25%) out of 12 stool samples from internal medicine ward patients, 1 (11.11%) out of 9 stool samples from surgery ward patients, and 1 (10%) out of 10 stool samples from isolation ward patients using the GDH + toxin A + B immunoassay method and the toxigenic C. difficile strain was confirmed in 1, 2, 1, and 1 stool samples, respectively, using the GeneXpert molecular assay. Toxigenic C. difficile was confirmed in patients at 4 (51.14%) out of 7 hospitals. In the present study, we also analyzed the clinical information of patients with C. difficile-positive stool samples who were receiving one or more antibiotics during hospitalization. The binary toxin gene (cdt), the tcdC gene, and the C. difficile strain polymerase chain reaction (PCR) ribotype 027 were not detected using the GeneXpert molecular assay among 12 C. difficile-positive samples by immunoassay. This study should aid in the prevention of unnecessary empiric therapy and increase the understanding of the toxigenic C. difficile burden on the healthcare system in the southwestern province of Saudi Arabia.
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Affiliation(s)
| | | | - Ahmed Abdulhaq
- Unit of Medical Microbiology, Department of Medical Lab Technology, Faculty of Applied Medical Sciences, Jazan University, Jazan, Kingdom of Saudi Arabia
| | - Mohammed Uthman A Alamoudi
- Unit of Medical Microbiology, Department of Medical Lab Technology, Faculty of Applied Medical Sciences, Jazan University, Jazan, Kingdom of Saudi Arabia
| | - Khalid Amaash Mohammed Zain
- Unit of Medical Microbiology, Department of Medical Lab Technology, Faculty of Applied Medical Sciences, Jazan University, Jazan, Kingdom of Saudi Arabia
| | - Ahmad Hassn Ghzwani
- Unit of Medical Microbiology, Department of Medical Lab Technology, Faculty of Applied Medical Sciences, Jazan University, Jazan, Kingdom of Saudi Arabia
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Kanti FS, Gorak Savard R, Bergeron F, Zomahoun HTV, Netter A, Maheux-Lacroix S. Transvaginal ultrasound and magnetic resonance imaging in the diagnosis of endometrioma: a systematic review and meta-analysis of diagnostic test accuracy studies. J OBSTET GYNAECOL 2024; 44:2311664. [PMID: 38348799 DOI: 10.1080/01443615.2024.2311664] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 01/22/2024] [Indexed: 02/15/2024]
Abstract
INTRODUCTION The diagnosis of endometriomas in patients with endometriosis is of primary importance because it influences the management and prognosis of infertility and pain. Imaging techniques are evolving constantly. This study aimed to systematically assess the diagnostic accuracy of transvaginal ultrasound (TVUS) and magnetic resonance imaging (MRI) in detecting endometrioma using the surgical visualisation of lesions with or without histopathological confirmation as reference standards in patients of reproductive age with suspected endometriosis. METHODS PubMed, Embase, Web of Science, Cumulative Index to Nursing and Allied Health Literature and ClinicalTrials.gov databases were searched from their inception to 12 October 2022, using a manual search for additional articles. Two authors independently performed title, abstract and full-text screening of the identified records, extracted study details and quantitative data and assessed the quality of the studies using the 'Quality Assessment of Diagnostic Accuracy Study 2' tool. Bivariate random-effects models were used to determine the pooled sensitivity and specificity, compare the two imaging modalities and evaluate the sources of heterogeneity. RESULTS Sixteen prospective studies (10 assessing TVUS, 4 assessing MRI and 2 assessing both TVUS and MRI) were included, representing 1976 participants. Pooled TVUS and MRI sensitivities for endometrioma were 0.89 (95% confidence interval 'CI', 0.86-0.92) and 0.94 (95% CI, 0.74-0.99), respectively (indirect comparison p-value of 0.47). Pooled TVUS and MRI specificities for endometrioma were 0.95 (95% CI, 0.92-0.97) and 0.94 (95% CI, 0.89-0.97), respectively (indirect comparison p-value of 0.51). These studies had a high or unclear risk of bias. A direct comparison (all participants undergoing TVUS and MRI) of the modalities was available in only two studies. CONCLUSION TVUS and MRI have high accuracy for diagnosing endometriomas; however, high-quality studies comparing the two modalities are lacking.
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Affiliation(s)
- Fleur Serge Kanti
- Centre de recherche du CHU de Québec - Université Laval, Quebec City, Canada
| | - Rose Gorak Savard
- Centre de recherche du CHU de Québec - Université Laval, Quebec City, Canada
| | | | - Hervé Tchala Vignon Zomahoun
- Centre de recherche sur les soins et les services de première ligne (CERSSPL) - Université Laval, Quebec City, Canada
| | - Antoine Netter
- Department of Gynecology-Obstetrics and Reproductive Medicine, AP-HM, La Conception Hospital, Marseille, France
- Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE), Aix Marseille University, CNRS, IRD, Marseille, France
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Larsen TJ, Pettersen MB, Nygaard Jensen H, Lynge Pedersen M, Lund-Andersen H, Jørgensen ME, Byberg S. The use of artificial intelligence to assess diabetic eye disease among the Greenlandic population. Int J Circumpolar Health 2024; 83:2314802. [PMID: 38359160 PMCID: PMC10877649 DOI: 10.1080/22423982.2024.2314802] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 02/01/2024] [Indexed: 02/17/2024] Open
Abstract
Background: Retina fundus images conducted in Greenland are telemedically assessed for diabetic retinopathy by ophthalmological nurses in Denmark. Applying an AI grading solution, in a Greenlandic setting, could potentially improve the efficiency and cost-effectiveness of DR screening.Method: We developed an AI model using retina fundus photos, performed on persons registered with diabetes in Greenland and Denmark, using Optos® ultra wide-field scanning laser ophthalmoscope, graded according to ICDR.Using the ResNet50 network we compared the model's ability to distinguish between different images of ICDR severity levels in a confusion matrix.Results: Comparing images with ICDR level 0 to images of ICDR level 4 resulted in an accuracy of 0.9655, AUC of 0.9905, sensitivity and specificity of 96.6%.Comparing ICDR levels 0,1,2 with ICDR levels 3,4, we achieved a performance with an accuracy of 0.8077, an AUC of 0.8728, a sensitivity of 84.6% and a specificity of 78.8%. For the other comparisons, we achieved a modest performance.Conclusion: We developed an AI model using Greenlandic data, to automatically detect DR on Optos retina fundus images. The sensitivity and specificity were too low for our model to be applied directly in a clinical setting, thus optimising the model should be prioritised.
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Affiliation(s)
- Trine Jul Larsen
- Greenland Center of Health Research, Institute of Nursing and Health Science, University of Greenland, Nuuk, Greenland
| | | | | | - Michael Lynge Pedersen
- Greenland Center of Health Research, Institute of Nursing and Health Science, University of Greenland, Nuuk, Greenland
- Rigshospitalet-Glostrup University Hospital, Glostrup, Denmark
| | - Henrik Lund-Andersen
- Clinical Epidemiology, Steno Diabetes Center Copenhagen, Copenhagen, Denmark
- Rigshospitalet-Glostrup University Hospital, Glostrup, Denmark
| | | | - Stine Byberg
- Clinical Epidemiology, Steno Diabetes Center Copenhagen, Copenhagen, Denmark
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Yang X, Zeng X, Huang J, Yang L, Mao S, Chen X, Wang Y, Wei X, Li S. Loop-mediated isothermal amplification linked a nanoparticles-based biosensor for detecting Epstein-Barr virus. Appl Microbiol Biotechnol 2024; 108:91. [PMID: 38212962 PMCID: PMC10784390 DOI: 10.1007/s00253-023-12948-9] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 11/24/2023] [Accepted: 12/01/2023] [Indexed: 01/13/2024]
Abstract
Epstein-Barr virus (EBV) is a ubiquitous gamma herpesvirus that maintains a lifelong latent association with B lymphocytes. Here, a rapid and reliable diagnosis platform for detecting EBV infection, employing loop-mediated isothermal amplification (LAMP) combined with a gold nanoparticles-based lateral flow biosensors (AuNPs-LFB) (termed LAMP Amplification Mediated AuNPs-LFB Detection, LAMAD), was developed in the current study. A set of specific LAMP primers targeting the Epstein-Barr nuclear antigen (EBNA) leader protein (EBNA-LP) gene was designed and synthesized. Subsequently, these templates extracted from various pathogens and whole blood samples were used to optimize and evaluate the EBV-LAMAD assay. As a result, the limit of detection (LoD) of the EBV-LAMAD assay was 45 copies/reaction. The EBV-LAMAD assay can detect all representative EBV pathogens used in the study, and of note, no cross-reactions were observed with other non-EBV organisms. Moreover, the whole workflow of the EBV-LAMAD assay can be completed within 70 min, including rapid EBV template preparation, EBV-LAMP amplification, and AuNPs-LFB-mediated detection. Taken together, the EBV-LAMAD assay targeting the EBNA-LP gene is a rapid, simplified, sensitive, reliable, and easy-to-use detection protocol that can be used as a competitive potential diagnostic/screening tool for EBV infection in clinical settings, especially in basic laboratories in resource-limited regions. KEY POINTS: • A novel, simplified, and easy-to-use AuNPs-LFB biosensor was designed and prepared. • LAMP combined with an AuNPs-LFB targeting the novel EBNA-LP gene was established. • EBV-LAMAD is a rapid, sensitive, and reliable detection protocol for EBV infection.
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Affiliation(s)
- Xinggui Yang
- Guizhou Provincial Center for Disease Control and Prevention, Guiyang, 550004, Guizhou, People's Republic of China
| | - Xiaoyan Zeng
- The Second Affiliated Hospital, Guizhou University of Traditional Chinese Medicine, Guiyang, 550003, Guizhou, People's Republic of China
| | - Junfei Huang
- Guizhou Provincial Center for Disease Control and Prevention, Guiyang, 550004, Guizhou, People's Republic of China
| | - Ludi Yang
- Tongren People's Hospital, Tongren, 554399, Guizhou, People's Republic of China
| | - Sha Mao
- Guizhou Provincial Center for Disease Control and Prevention, Guiyang, 550004, Guizhou, People's Republic of China
| | - Xu Chen
- The Second Affiliated Hospital, Guizhou University of Traditional Chinese Medicine, Guiyang, 550003, Guizhou, People's Republic of China
| | - Yu Wang
- Department of Clinical Laboratory, The First People's Hospital of Guiyang, Guiyang, 550002, Guizhou, People's Republic of China
| | - Xiaoyu Wei
- Guizhou Provincial Center for Disease Control and Prevention, Guiyang, 550004, Guizhou, People's Republic of China
| | - Shijun Li
- Guizhou Provincial Center for Disease Control and Prevention, Guiyang, 550004, Guizhou, People's Republic of China.
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Zhou C, Liu L, Chen J, Fu Q, Chen Z, Wang J, Sun X, Ai L, Xu X, Wang J. Rapid authentication of characteristic milk powders by recombinase polymerase amplification assays. Food Chem 2024; 443:138540. [PMID: 38277935 DOI: 10.1016/j.foodchem.2024.138540] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/30/2023] [Accepted: 01/21/2024] [Indexed: 01/28/2024]
Abstract
The authentication of dairy species has great significance for food safety. This study focused on a more rapid method for identifying major dairy species, and specific recombinase polymerase amplification (RPA)-based assays for cattle, goat, sheep, camel and donkey were developed. Through the developed RPA-based assays, goats and sheep could be simultaneously identified and bovine families could be differentiated. The performances of the RPA assays were validated using 37 milk powder samples, of which 16.2% (6/37) were suspected of being adulterated and 24.3% (9/37) were potentially at risk of being wrongly identified as adulteration. The effectiveness of the developed assays for crude DNA detection was also validated by a rapid nucleic acid extraction kit, and results showed that the presence of large amounts of protein and fat did not affect the qualitative results. Therefore, these assays could combine with the rapid nucleic acids extraction methods for being used in field detection.
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Affiliation(s)
- Cang Zhou
- School of Public Health, Hebei Medical University, Shijiazhuang 050017, China; Food Microbiology and Animal Quarantine Laboratory, Technology Center of Shijiazhuang Customs, Shijiazhuang 050051, China; Hebei Key Laboratory of Environment and Human Health, Shijiazhuang 050017, China
| | - Libing Liu
- Food Microbiology and Animal Quarantine Laboratory, Technology Center of Shijiazhuang Customs, Shijiazhuang 050051, China
| | - Jia Chen
- College of Chemical Technology, Shijiazhuang University, Shijiazhuang 050035, China
| | - Qi Fu
- Food Microbiology and Animal Quarantine Laboratory, Technology Center of Shijiazhuang Customs, Shijiazhuang 050051, China
| | - Zhimin Chen
- Shijiazhuang Food and Drug Inspection Center, Shijiazhuang 050020, China
| | - Jinfeng Wang
- Food Microbiology and Animal Quarantine Laboratory, Technology Center of Shijiazhuang Customs, Shijiazhuang 050051, China
| | - Xiaoxia Sun
- Food Microbiology and Animal Quarantine Laboratory, Technology Center of Shijiazhuang Customs, Shijiazhuang 050051, China
| | - Lianfeng Ai
- Food Microbiology and Animal Quarantine Laboratory, Technology Center of Shijiazhuang Customs, Shijiazhuang 050051, China
| | - Xiangdong Xu
- School of Public Health, Hebei Medical University, Shijiazhuang 050017, China; Hebei Key Laboratory of Environment and Human Health, Shijiazhuang 050017, China.
| | - Jianchang Wang
- School of Public Health, Hebei Medical University, Shijiazhuang 050017, China; Food Microbiology and Animal Quarantine Laboratory, Technology Center of Shijiazhuang Customs, Shijiazhuang 050051, China; Hebei Key Laboratory of Environment and Human Health, Shijiazhuang 050017, China.
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Kim H, Lee S, Ju Y, Kim H, Jang H, Park Y, Lee SM, Yong D, Kang T, Park HG. Multifunctional self-priming hairpin probe-based isothermal nucleic acid amplification and its applications for COVID-19 diagnosis. Biosens Bioelectron 2024; 253:116147. [PMID: 38452568 DOI: 10.1016/j.bios.2024.116147] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 02/12/2024] [Accepted: 02/19/2024] [Indexed: 03/09/2024]
Abstract
We herein present a multifunctional self-priming hairpin probe-based isothermal amplification, termed MSH, enabling one-pot detection of target nucleic acids. The sophisticatedly designed multifunctional self-priming hairpin (MSH) probe recognizes the target and rearranges to prime itself, triggering the amplification reaction powered by the continuously repeated extension, nicking, and target recycling. As a consequence, a large number of double-stranded DNA (dsDNA) amplicons are produced that could be monitored in real-time using a dsDNA-intercalating dye. Based on this unique design approach, the nucleocapsid (N) and the open reading frame 1 ab (ORF1ab) genes of SARS-CoV-2 were successfully detected down to 1.664 fM and 0.770 fM, respectively. The practical applicability of our method was validated by accurately diagnosing 60 clinical samples with 93.33% sensitivity and 96.67% specificity. This isothermal one-pot MSH technique holds great promise as a point-of-care testing protocol for the reliable detection of a wide spectrum of pathogens, particularly in resource-limited settings.
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Affiliation(s)
- Hansol Kim
- Department of Chemical and Biomolecular Engineering (BK 21 four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea; Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Seoyoung Lee
- Department of Chemical and Biomolecular Engineering (BK 21 four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Yong Ju
- Department of Chemical and Biomolecular Engineering (BK 21 four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hyoyong Kim
- Department of Chemical and Biomolecular Engineering (BK 21 four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hyowon Jang
- Department of Chemical and Biomolecular Engineering (BK 21 four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea; Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Yeonkyung Park
- Department of Chemical and Biomolecular Engineering (BK 21 four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea; Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Sang Mo Lee
- Department of Chemical and Biomolecular Engineering (BK 21 four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Dongeun Yong
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Taejoon Kang
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea; School of Pharmacy, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 16419, Republic of Korea.
| | - Hyun Gyu Park
- Department of Chemical and Biomolecular Engineering (BK 21 four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
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Yang Y, Xue H, Tang Y, Tao W, Wang Y, Guan M, Fei Y, Wang S, Wang L, Xiong X. Development of a one-pot and sequence-specific LAMP assay based on the self-quenching probe integrated by the complementary oligonucleotide for an enhanced fluorescence quenching. Food Chem 2024; 441:138354. [PMID: 38183726 DOI: 10.1016/j.foodchem.2024.138354] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/25/2023] [Accepted: 01/01/2024] [Indexed: 01/08/2024]
Abstract
Single-modified fluorogenic primer (Sfp) enables accurate identification of LAMP amplicons without being affected by non-specific products. However, the fluorescence self-quenching by nucleobases for Sfp is generally of low efficiency, and the high background signal makes it a great challenge to achieve visual inspection with naked eyes. In the present study, the oligonucleotide (Ao) complementary to Sfp was designed, which would hybridize to Sfp and dramatically heighten the quenching effect, leading to a low background signal in negative reaction. Instead, for positive reaction, Sfp is incorporated into the double-stranded amplicons, resulting in dequenching and consequently, enhanced fluorescence. The detection scheme can be further improved by a dual-color fluorescence strategy, allowing visual detection of 1 pg rainbow trout DNA in a closed-tube format within 30 min. Therefore, our LAMP-Ao-Sfp assay represents a useful tool for rapid and sensitive detection, and can serve as a reliable method for on-site detection in low-resource settings.
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Affiliation(s)
- Ying Yang
- School of Horticulture, Anhui Agricultural University, Hefei 230036, China
| | - Hanyue Xue
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211800, China
| | - Yalin Tang
- School of Horticulture, Anhui Agricultural University, Hefei 230036, China
| | - Wenjia Tao
- School of Horticulture, Anhui Agricultural University, Hefei 230036, China
| | - Yaru Wang
- School of Horticulture, Anhui Agricultural University, Hefei 230036, China
| | - Mingyue Guan
- School of Horticulture, Anhui Agricultural University, Hefei 230036, China
| | - Yanjin Fei
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211800, China
| | - Shihui Wang
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211800, China
| | - Libin Wang
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Xiong Xiong
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211800, China.
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Kavsak PA, Worster A. The clinical chemistry score (CCS) achieves the highest efficacy when assessed with the 99% sensitivity benchmark for myocardial infarction. Int J Cardiol 2024; 403:131898. [PMID: 38387728 DOI: 10.1016/j.ijcard.2024.131898] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Accepted: 02/19/2024] [Indexed: 02/24/2024]
Affiliation(s)
- Peter A Kavsak
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada.
| | - Andrew Worster
- Division of Emergency Medicine, Department of Medicine, McMaster University, Hamilton, Canada
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Li S, Zheng Y, Yang Y, Yang H, Han C, Du P, Wang X, Yang H. Diagnosis and classification of intestinal diseases with urine by surface-enhanced Raman spectroscopy. Spectrochim Acta A Mol Biomol Spectrosc 2024; 312:124081. [PMID: 38422936 DOI: 10.1016/j.saa.2024.124081] [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: 11/16/2023] [Revised: 02/21/2024] [Accepted: 02/22/2024] [Indexed: 03/02/2024]
Abstract
Intestinal Disease (ID) is often characterized by clinical symptoms such as malabsorption, intestinal dysfunction, and injury. If treatment is not timely, it will increase the risk of cancer. Early diagnosis of ID is the key to cure it. There are certain limitations of the conventional diagnostic methods, such as low sensitivity and specificity. Therefore, development of a highly sensitive, non-invasive diagnostic method for ID is extremely important. Urine samples are easier to collect and more sensitive to changes in biomolecules than other pathological diagnostic samples such as tissue and blood. In this paper, a diagnostic method of ID with urine by surface-enhanced Raman spectroscopy (SERS) is proposed. A classification model between ID patients and healthy controls (HC) and a classification model between different pathological types of ID (i.e., benign intestinal disease (BID) and colorectal cancer (CRC)) are established. Here, 830 urine samples, including 100 HC, 443 BID, and 287 CRC, were investigated by SERS. The ID/HC classification model was developed by analyzing the SERS spectra of 150 ID and 100 HC, while BID/CRC classification model was built with 300 BID and 150 CRC patients by principal component analysis (PCA)-support vector machines (SVM). The two established models were internally verified by leave-one-out-cross-validation (LOOCV). Finally, the BID/CRC classification model was further evaluated by 143 BID and 137 CRC patients as an external test set. It shows that the accuracy of the classification model validated by the LOOCV for ID/HC and BID/CRC is 86.4% and 85.56%, respectively. And the accuracy of the BID/CRC classification model with external test set is 82.14%. It shows that high accuracy can be achieved with these two established classification models. It indicates that ID patients in the general population can be identified and BID and CRC patients can be further classified with measuring urine by SERS. It shows that the proposed diagnostic method and established classification models provide valuable information for clinicians to early diagnose ID patients and analyze different stages of ID.
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Affiliation(s)
- Silong Li
- School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yuqing Zheng
- School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yiheng Yang
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Haojie Yang
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Changpeng Han
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Peng Du
- Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - Xiaolei Wang
- Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China.
| | - Huinan Yang
- School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
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Juchem CF, Corbellini VA, Horst A, Heidrich D. Infrared spectroscopy combined with chemometrics in transflectance mode: An alternative approach in the photodiagnosis of COVID-19 using saliva. Spectrochim Acta A Mol Biomol Spectrosc 2024; 312:124066. [PMID: 38428213 DOI: 10.1016/j.saa.2024.124066] [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: 07/28/2023] [Revised: 02/14/2024] [Accepted: 02/19/2024] [Indexed: 03/03/2024]
Abstract
The Coronavirus Disease 2019 (COVID-19) pandemic, caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has required the search for sensitive, rapid, specific, and lower-cost diagnostic methods to meet the high demand. The gold standard method of laboratory diagnosis is real-time reverse transcription polymerase chain reaction (RT-PCR). However, this method is costly and results can take time. In the literature, several studies have already described the potential of Fourier transform infrared spectroscopy (FTIR) as a tool in the biomedical field, including the diagnosis of viral infections, while being fast and inexpensive. In view of this, the objective of this study was to develop an FTIR model for the diagnosis of COVID-19. For this analysis, all private clients who had performed a face-to-face collection at the Univates Clinical Analysis Laboratory (LAC Univates) within a period of six months were invited to participate. Data from clients who agreed to participate in the study were collected, as well as nasopharyngeal secretions and a saliva sample. For the development of models, the RT-PCR result of nasopharyngeal secretions was used as a reference method. Absorptions with high discrimination (p < 0.001) between GI (28 patients, RT-PCR test positive to SARS-CoV-2 virus) and GII (173 patients who did not have the virus detected in the test) were most relevant at 3512 cm-1, 3385 cm-1 and 1321 cm-1 after 2nd derivative data transformation. To carry out the diagnostic modeling, chemometrics via FTIR and Discriminant Analysis of Orthogonal Partial Least Squares (OPLS-DA) by salivary transflectance mode with one latent variable and one orthogonal signal correction component were used. The model generated predictions with 100 % sensitivity, specificity and accuracy. With the proposed model, in a single application of an individual's saliva in the FTIR equipment, results related to the detection of SARS-CoV-2 can be obtained in a few minutes of spectral evaluation.
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Affiliation(s)
- Calebe Fernando Juchem
- Postgraduate Program in Medical Sciences, Universidade do Vale do Taquari - Univates, Lajeado, RS, Brazil
| | - Valeriano Antonio Corbellini
- Postgraduate Program in Health Promotion, Postgraduate Program in Environmental Technology, Universidade de Santa Cruz do Sul, Santa Cruz do Sul, RS, Brazil
| | - Andréa Horst
- Life Sciences Center, Universidade do Vale do Taquari - Univates, Lajeado, RS, Brazil
| | - Daiane Heidrich
- Postgraduate Program in Medical Sciences, Universidade do Vale do Taquari - Univates, Lajeado, RS, Brazil; Postgraduate Program in Biotechnology, Universidade do Vale do Taquari - Univates, Lajeado, RS, Brazil.
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11
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Basri KN, Yazid F, Mohd Zain MN, Md Yusof Z, Abdul Rani R, Zoolfakar AS. Artificial neural network and convolutional neural network for prediction of dental caries. Spectrochim Acta A Mol Biomol Spectrosc 2024; 312:124063. [PMID: 38394882 DOI: 10.1016/j.saa.2024.124063] [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: 11/02/2023] [Revised: 01/12/2024] [Accepted: 02/18/2024] [Indexed: 02/25/2024]
Abstract
Dental caries has high prevalence among kids and adults thus it has become one of the global health concerns. The current modern dentistry focused on the preventives measures to reduce the number of dental caries cases. The employment of machine learning coupled with UV spectroscopy plays a crucial role to detect the early stage of caries. Artificial neural network with hyperparameter tuning was employed to train spectral data for the classification based on the International Caries Detection and Assesment System (ICDAS). Spectra preprocessing namely mean center (MC), autoscale (AS) and Savitzky Golay smoothing (SG) were applied on the data for spectra correction. The best performance of ANN model obtained has accuracy of 0.85 with precision of 1.00. Convolutional neural network (CNN) combined with Savitzky Golay smoothing performed on the spectral data has accuracy, precision, sensitivity and specificity for validation data of 1.00 respectively. The result obtained shows that the application of ANN and CNN capable to produce robust model to be used as an early screening of dental caries.
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Affiliation(s)
- Katrul Nadia Basri
- School of Electrical Engineering, College of Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia; Photonics Technology Lab, MIMOS Berhad, Technology Park Malaysia, 57000 Kuala Lumpur, Malaysia
| | - Farinawati Yazid
- Faculty of Dentistry, Universiti Kebangsaan Malaysia, 50300 Kuala Lumpur, Malaysia
| | | | - Zalhan Md Yusof
- Photonics Technology Lab, MIMOS Berhad, Technology Park Malaysia, 57000 Kuala Lumpur, Malaysia
| | - Rozina Abdul Rani
- School of Mechanical Engineering, College of Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
| | - Ahmad Sabirin Zoolfakar
- School of Electrical Engineering, College of Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia.
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12
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Khodaei H, Azimi L, Akhavan Sepahy A, Ashrafi F, Rajabnejad M. Improved heat shock method for extracting total RNA from nasopharyngeal swab samples even with low viral load. Diagn Microbiol Infect Dis 2024; 109:116210. [PMID: 38452554 DOI: 10.1016/j.diagmicrobio.2024.116210] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/04/2024] [Accepted: 02/09/2024] [Indexed: 03/09/2024]
Abstract
This study aimed to improve the heat shock method as a cost-effective and time-efficient for total RNA extraction. We compared the effectiveness of two total RNA extraction methods by using Real-Time PCR for nasopharynx swabs. Include: I; use of a commercial total RNA extraction kit as a standard. II; utilized a modified heat shock method (MHS). Time, centrifuge speed and duration, proteinase K, and RNA carrier were optimized. The optimized parameters included treating the sample with 5 μg/μL at 56°C for 5 minutes, heating at 95°C for 5 minutes followed by thermal shock in ice for 3 minutes, adding 4 μg/μL RNA carrier at room temperature for 3 minutes, and centrifuging at 7000 rpm for 10 minutes. This optimization demonstrated a sensitivity and specificity of 100% (CI: 95%) even in samples with low viral load. Our in-house method presents a rapid, and cost-effective alternative for total RNA extraction.
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Affiliation(s)
- Hannan Khodaei
- Department of Microbiology, Faculty of Biological Sciences, Islamic Azad University, Tehran North Branch, Tehran, Iran
| | - Leila Azimi
- Pediatric Infections Research Center, Research Institute for Children's Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Abbas Akhavan Sepahy
- Department of Microbiology, Faculty of Biological Sciences, Islamic Azad University, Tehran North Branch, Tehran, Iran
| | - Fatemeh Ashrafi
- Department of Microbiology, Faculty of Biological Sciences, Islamic Azad University, Tehran North Branch, Tehran, Iran
| | - Maryam Rajabnejad
- Pediatric Infections Research Center, Research Institute for Children's Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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13
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Becquart A, Guigon A, Regueme A, Coulon P, Bocket L, Hober D, Alidjinou EK. Comparison of two automated commercial assays for routine detection of anti-hepatitis E Virus IgM antibodies in clinical samples. Diagn Microbiol Infect Dis 2024; 109:116226. [PMID: 38394738 DOI: 10.1016/j.diagmicrobio.2024.116226] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 02/18/2024] [Accepted: 02/19/2024] [Indexed: 02/25/2024]
Abstract
Diagnosis of hepatitis E virus (HEV) infection relies first on detection of IgM antibodies (Ab), sometimes completed with HEV RNA detection. This study aimed to compare the performance of two automated anti-HEV IgM Ab assays. Correlation between Virclia® (Vircell) and Liaison® (Diasorin) assays was carried out on 178 routine clinical samples. Both assays were run on 67 samples from HEV RT-PCR (Altona) screened patients, and 52 Wantai® EIA (Euroimmun) tested samples. An excellent correlation was observed between both assays with an overall agreement of 96.6% (172/178), and a kappa coefficient at 0.93. In HEV RNA positive group (n=43), IgM detection rate was 93.3% (14/15) in immunocompetent patients, with both assays. In immunocompromised patients, detection rate was 75% (21/28) and 71.4% (20/28) using Virclia® and Liaison XL® assays, respectively. Virclia® and Liaison® anti-HEV IgM assays have similar performance for the detection of anti-HEV IgM Ab.
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Affiliation(s)
- Adrien Becquart
- University Lille, CHU de Lille, Centre de Biologie Pathologie, Laboratoire de Virologie ULR3610, Lille 59000, France
| | - Aurélie Guigon
- University Lille, CHU de Lille, Centre de Biologie Pathologie, Laboratoire de Virologie ULR3610, Lille 59000, France
| | - Alexandre Regueme
- University Lille, CHU de Lille, Centre de Biologie Pathologie, Laboratoire de Virologie ULR3610, Lille 59000, France
| | - Pauline Coulon
- University Lille, CHU de Lille, Centre de Biologie Pathologie, Laboratoire de Virologie ULR3610, Lille 59000, France
| | - Laurence Bocket
- University Lille, CHU de Lille, Centre de Biologie Pathologie, Laboratoire de Virologie ULR3610, Lille 59000, France
| | - Didier Hober
- University Lille, CHU de Lille, Centre de Biologie Pathologie, Laboratoire de Virologie ULR3610, Lille 59000, France
| | - Enagnon Kazali Alidjinou
- University Lille, CHU de Lille, Centre de Biologie Pathologie, Laboratoire de Virologie ULR3610, Lille 59000, France.
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14
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Jeong S, Lee SK, Cho EJ, Kim HS, Lee YK, Kim JS, Song W, Kim HS. Performance Evaluation of the Roche Cobas 5800 HBV and HCV Tests: Comparison of the 200 and 500 μL Protocols. Ann Lab Med 2024; 44:253-261. [PMID: 38098301 PMCID: PMC10813821 DOI: 10.3343/alm.2023.0306] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/22/2023] [Accepted: 11/29/2023] [Indexed: 01/26/2024] Open
Abstract
Background Clinical management of patients infected with hepatitis B virus (HBV) or hepatitis C virus (HCV) relies on the viral load (VL). The Cobas 5800 system (Roche Diagnostics) can determine VLs in 200 and 500 μL samples, but the performance of each protocol has not been compared. We evaluated the performance of both protocols for the HBV and HCV tests. Methods Precision and linearity were verified using commercial panels. Probit analyses were used to determine limits of detection (LoDs). The results obtained with 336 samples were compared using the 200 and 500 μL protocols. Data from 6,737 retrospective HBV and 768 HCV samples were compared to estimate the effects of the different LoDs on the diagnostic results of the protocols. Correlations between protocols were tested with Spearman's rank correlation coefficients (rho). Results The precision and linearity of both protocols were verified. The LoDs for the 200 and 500 μL protocols were 6.5 and 2.7 IU/mL for HBV and 29.7 and 8.2 IU/mL for HCV, respectively. The agreement between the protocols ranged from 0.8 to 1.0. The results obtained with the HBV and HCV tests showed a strong correlation (rho=0.994). Only 0.4% of HBV and 0.4% of HCV test results were affected by the LoDs of the 200 μL protocol. Conclusions The Cobas 5800 200 and 500 μL protocols for the HBV DNA and HCV RNA tests demonstrated excellent performance. These findings establish the 200 μL protocol as a new option for low-volume samples, especially for pediatric and difficult-to-bleed patients.
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Affiliation(s)
- Seri Jeong
- Department of Laboratory Medicine, Hallym University Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Su Kyung Lee
- Department of Laboratory Medicine, Hallym University Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea
| | - Eun-Jung Cho
- Department of Laboratory Medicine, Hallym University Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea
| | - Han-Sung Kim
- Department of Laboratory Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
| | - Young Kyung Lee
- Department of Laboratory Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
| | - Jae-Seok Kim
- Department of Laboratory Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Wonkeun Song
- Department of Laboratory Medicine, Hallym University Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Hyun Soo Kim
- Department of Laboratory Medicine, Hallym University Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea
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15
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Giarola JF, Soler M, Estevez MC, Tarasova A, Le Poder S, Wasniewski M, Decaro N, Lechuga LM. Validation of a plasmonic-based serology biosensor for veterinary diagnosis of COVID-19 in domestic animals. Talanta 2024; 271:125685. [PMID: 38262129 DOI: 10.1016/j.talanta.2024.125685] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/12/2024] [Accepted: 01/15/2024] [Indexed: 01/25/2024]
Abstract
The coronavirus disease 2019 (COVID-19) pandemic recently demonstrated the devastating impact on public health, economy, and social development of zoonotic infectious diseases, whereby viruses jump from animals to infect humans. Due to this potential of viruses to cross the species barrier, the surveillance of infectious pathogens circulation in domestic and close-to-human animals is indispensable, as they could be potential reservoirs. Optical biosensors, mainly those based on Surface Plasmon Resonance (SPR), have widely demonstrated its ability for providing direct, label-free, and quantitative bioanalysis with excellent sensitivity and reliability. This biosensor technology can provide a powerful tool to the veterinary field, potentially being helpful for the monitoring of the infection spread. We have implemented a multi-target COVID-19 serology plasmonic biosensor for the rapid testing and screening of common European domestic animals. The multi-target serological biosensor assay enables the detection of total SARS-CoV-2 antibodies (IgG + IgM) generated towards both S and N viral antigens. The analysis is performed in less than 15 min with a low-volume serum sample (<20 μL, 1:10 dilution), reaching a limit of detection of 49.6 ng mL-1. A complete validation has been carried out with hamster, dog, and cat sera samples (N = 75, including 37 COVID-19-positive and 38 negative samples). The biosensor exhibits an excellent diagnostic sensitivity (100 %) and good specificity (71.4 %) for future application in veterinary settings. Furthermore, the biosensor technology is integrated into a compact, portable, and user-friendly device, well-suited for point-of-care testing. This study positions our plasmonic biosensor as an alternative and reliable diagnostic tool for COVID-19 serology in animal samples, expanding the applicability of plasmonic technologies for decentralized analysis in veterinary healthcare and animal research.
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Affiliation(s)
- Juliana Fátima Giarola
- Nanobiosensors and Bioanalytical Applications Group (NanoB2A), Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, CIBER-BBN and BIST, 08193, Bellaterra, Barcelona, Spain
| | - Maria Soler
- Nanobiosensors and Bioanalytical Applications Group (NanoB2A), Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, CIBER-BBN and BIST, 08193, Bellaterra, Barcelona, Spain.
| | - M-Carmen Estevez
- Nanobiosensors and Bioanalytical Applications Group (NanoB2A), Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, CIBER-BBN and BIST, 08193, Bellaterra, Barcelona, Spain
| | - Anna Tarasova
- Nanobiosensors and Bioanalytical Applications Group (NanoB2A), Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, CIBER-BBN and BIST, 08193, Bellaterra, Barcelona, Spain
| | - Sophie Le Poder
- UMR Virologie, INRAE, ANSES, École Nationale Vétérinaire d'Alfort, 94700, Maisons-Alfort, France
| | - Marine Wasniewski
- Interfas Unit, Nancy Laboratory for Rabies and Wildlife, ANSES, 54220, Malzéville, France
| | - Nicola Decaro
- Department of Veterinary Medicine, University of Bari Aldo Moro, 70121, Bari, Italy
| | - Laura M Lechuga
- Nanobiosensors and Bioanalytical Applications Group (NanoB2A), Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, CIBER-BBN and BIST, 08193, Bellaterra, Barcelona, Spain
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16
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Mahnic A, Rak M, Trebše R, Rupnik M, Cőr A. Identification of prosthetic joint infections with 16S amplicon metagenomic sequencing - comparison with standard cultivation approach. Diagn Microbiol Infect Dis 2024; 109:116188. [PMID: 38340614 DOI: 10.1016/j.diagmicrobio.2024.116188] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 01/11/2024] [Accepted: 01/15/2024] [Indexed: 02/12/2024]
Abstract
Prosthetic joint infections (PJIs) are commonly diagnosed via culture-based methods, which may miss hard-to-grow pathogens. This study contrasts amplicon metagenomic sequencing (16S AS) with traditional culture techniques for enhanced clinical decision-making. We analyzed sonicate fluid from 27 patients undergoing revision arthroplasty using both methods, emphasizing the distinction between contaminants and true positives. Our findings show moderate agreement between the two methods, with a Cohen's kappa of 0.490, varying across bacterial genera (Cohen's kappa -0.059 to 1). The sensitivity of 16S AS compared to culture was 81% (95% CI, 68% to 94%). Sequencing revealed greater microbial diversity, including anaerobic genera like Anaerococcus and Citrobacter. Interestingly, several culture-negative PJI samples showed diverse bacteria via 16S AS. Despite rigorous controls and algorithms to eliminate contaminants, confirming bacteria presence with 16S AS remains a challenge. This highlights the need for improved PJI diagnostic methods, while also pointing out the limitations of next-generation sequencing (NGS) as a clinical diagnostic tool.
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Affiliation(s)
- Aleksander Mahnic
- National Laboratory of Health, Environment and Food, Department for Microbiological Research, Maribor, Slovenia.
| | - Mitja Rak
- National Laboratory of Health, Environment and Food, Medical Microbiology Department, Koper, Slovenia
| | - Rihard Trebše
- Orthopaedic Hospital Valdoltra, Ankaran, Slovenia; Faculty of Medicine, University of Ljubljana, Slovenia
| | - Maja Rupnik
- National Laboratory of Health, Environment and Food, Department for Microbiological Research, Maribor, Slovenia; Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | - Andrej Cőr
- Orthopaedic Hospital Valdoltra, Ankaran, Slovenia; University of Primorska, Faculty of Health Sciences, Izola, Slovenia
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17
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Lin K, Yao K, Li X, Li Q, Guo X, You W, Ren W, Bian Y, Guo J, Sun Z, Zhang R, Yang X, Li Z, Li B. Rapid and sensitive detection of nucleic acids using an RAA-CRISPR/Cas12b one-pot detection assay (Rcod). Talanta 2024; 271:125616. [PMID: 38277969 DOI: 10.1016/j.talanta.2023.125616] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 12/25/2023] [Accepted: 12/29/2023] [Indexed: 01/28/2024]
Abstract
Rapid, sensitive and specific methods are crucial for nucleic acid detection. CRISPR/Cas12b has recently been widely used in nucleic acid detection. However, due to its thermophagic property, DNA isothermal recombinase-aided amplification (RAA) and subsequent CRISPR/Cas12b detection require two separate reactions, which is cumbersome and inconvenient and may cause aerosol pollution. In this study, we propose an RAA-CRISPR/Cas12b one-pot detection assay (Rcod) for Bordetella pertussis detection without additional amplification product transfer steps. The time from sample processing to response time was less than 30 min using nucleic acid extraction-free method, and the sensitivity reached 0.2 copies/μL. In this system, Alicyclobacillus acidoterrestris Cas12b protein (AacCas12b) exhibited strong and specific trans-cleavage activity at a constant temperature of 37 °C, while the cis-cleavage activity was weak. This characteristic reduces the interference of AacCas12b with nucleic acids in the system. Compared with real-time PCR, our Rcod system detected B. pertussis in 221 clinical samples with a sensitivity and specificity of 97.96 % and 99.19 %, respectively, with nucleic acid extraction-free method. The rapid, sensitive and specific Rcod system provides ideas for the establishment of CRISPR-based one-step nucleic acid detection and may aid the development of reliable point-of-care nucleic acid tests. IMPORTANCE: Pertussis is an acute respiratory infection caused by B. pertussis that is highly contagious and potentially fatal, and early diagnosis is essential for the treatment of whooping cough. In this study, we found that AacCas12b has high and strongly specific trans-cleavage activity at lower temperatures. A RAA-CRISPR/Cas12b one-step detection platform (Rcod) without interference with amplification was developed. In addition, the combination of Rcod and nucleic acid extraction-free method can quickly and accurately detect the qualitative detection of B. pertussis, and the detection results are visualized, which makes the pathogen nucleic acid detection and analysis process simpler, and provides a new method for the rapid clinical diagnosis of B. pertussis.
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Affiliation(s)
- Kangfeng Lin
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Kaihu Yao
- Key Laboratory of Major Diseases in Children, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), Laboratory of Microbiology, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Xiao Li
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Qinghan Li
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Xiangju Guo
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Weixin You
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Wenjing Ren
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Ya Bian
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Jianguang Guo
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Zhen Sun
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian, China
| | - Rui Zhang
- Xiamen Cell Therapy Research Center, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361003, China
| | - Xiaoqing Yang
- Pediatrics Department, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, China.
| | - Zhiyong Li
- Department of Laboratory Medicine, The First Affiliated Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, 361003, China.
| | - Boan Li
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network and Engineering Research Center of Molecular Diagnostics of the Ministry of Education, School of Life Sciences, Xiamen University, Xiamen, Fujian, China.
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Chen K, Yu C, Pan J, Xu Y, Luo Y, Yang T, Yang X, Xie L, Zhang J, Zhuo R. Prediction of the Nottingham prognostic index and molecular subtypes of breast cancer through multimodal magnetic resonance imaging. Magn Reson Imaging 2024; 108:168-175. [PMID: 38408689 DOI: 10.1016/j.mri.2024.02.012] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 02/19/2024] [Accepted: 02/21/2024] [Indexed: 02/28/2024]
Abstract
PURPOSE To explore the ability of intravoxel incoherent motion (IVIM), diffusion kurtosis imaging (DKI) and background parenchyma enhancement (BPE) to predict the Nottingham prognostic index (NPI) and molecular subtypes of breast cancer (BC). MATERIALS AND METHODS In this study, 93 patients with BC were included, and they all underwent DKI, IVIM and dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) examinations. The corresponding mean kurtosis value (MK), pure diffusion (MD), perfusion fraction (f), pseudo diffusion coefficient (D*), true diffusion coefficient (D), and BPE were measured. We used logistic regression analysis to investigate the relevance between the NPI, molecular subtypes and variables. The diagnostic efficacy was analyzed using receiver operating characteristic curves (ROC). RESULTS The MD and D values of the high-level NPI group were significantly lower than those of the low-level NPI group (p < 0.01), and the f value of the high-level NPI group was obviously higher than that of low-level NPI group (p < 0.001). The area under curve (AUC) of the combined model (f + D) was 0.824. Comparing with non-Luminal subtypes, the Luminal subtypes showed obviously lower MK, f and D*, and the AUC of the combined model (MK + f + D*) was 0.785. In comparison to other subtypes, the MK and D* values of triple-negative subtype were higher than other subtypes, and the combined model (MK + D*) represented an AUC of 0.865. CONCLUSION The quantitative parameters of DKI and IVIM have vital value in predicting the NPI and molecular subtypes of BC, while BPE could not provide additional information. Besides, these combined models can obviously improve the prediction performance.
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Affiliation(s)
- Kewei Chen
- Department of Radiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang, Hubei, China; Department of Radiology, Women and Children's Hospital of Ningbo University, Ningbo, Zhejiang, China
| | - Chengxin Yu
- Department of Radiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang, Hubei, China.
| | - Junlong Pan
- Department of Radiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang, Hubei, China
| | - Yaqia Xu
- Department of Radiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang, Hubei, China
| | - Yuqing Luo
- Department of Radiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang, Hubei, China
| | - Ting Yang
- Department of Radiology, Jinshan Hospital, Fudan University, Shanghai, China
| | - Xiaoling Yang
- Department of Radiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang, Hubei, China
| | - Lisi Xie
- Department of Radiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang, Hubei, China
| | - Jing Zhang
- Department of Radiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang, Hubei, China
| | - Renfeng Zhuo
- Department of Radiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang, Hubei, China
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Wang L, Zhang Z, Liu Y, Lin S, Zhang W, Zhu L, Xu W, Dong Y. Allosteric strand displacement isothermal amplification for the visual detection of Toxoplasma gondii in 30 minutes. Biosens Bioelectron 2024; 251:116132. [PMID: 38382270 DOI: 10.1016/j.bios.2024.116132] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 02/11/2024] [Accepted: 02/12/2024] [Indexed: 02/23/2024]
Abstract
Early detection of Toxoplasma gondii (T. gondii) is critical due to a lack of effective treatment for toxoplasmosis.This study established a simple, cost-effective, and rapid colorimetric detection method for T. gondii. The entire testing process, from sample collection to results, takes only 0.5 h. These characteristics fulfill the demands of researchers seeking rapid target detection with minimal equipment reliance. For genomic extraction, this study evaluated the ability of two filter papers to capture genomes. A rapid genomic extraction device combined with the two filter papers was designed to simplify the genomic extraction process, which was completed within 10 min and increased the detection sensitivity tenfold. The method utilized a simplified primer design for isothermal amplification, namely allosteric strand displacement (ASD), and employed an underutilized commercial color indicator, Bromothymol Blue (BTB), for signal output. Compared with other reported indicators, BTB exhibited a more pronounced color change, shifting from blue to yellow in positive samples, facilitating easier visual differentiation. The reaction was completed in 20 min with a limit of detection (LOD) as low as 0.014 T. gondii per microliter.
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Affiliation(s)
- Lei Wang
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, China
| | - Zhaoxuan Zhang
- Department of Mechanical Engineering, College of Engineering, China Agricultural University, Beijing, 100083, China
| | - Yanger Liu
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, China
| | - Shenghao Lin
- Food Laboratory of Zhongyuan, Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, China
| | - Wenqiang Zhang
- Department of Mechanical Engineering, College of Engineering, China Agricultural University, Beijing, 100083, China
| | - Longjiao Zhu
- Food Laboratory of Zhongyuan, Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, China
| | - Wentao Xu
- Food Laboratory of Zhongyuan, Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, 100083, China.
| | - Yulan Dong
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, China.
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Chan KKP, Lee YCG. Tuberculous pleuritis: clinical presentations and diagnostic challenges. Curr Opin Pulm Med 2024; 30:210-216. [PMID: 38323466 DOI: 10.1097/mcp.0000000000001052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
PURPOSE OF REVIEW Tuberculous pleuritis (TBP) is one of the most common types of extrapulmonary tuberculosis. We highlight the latest epidemiology of TBP, the heterogeneity of its presentation and the performance of different diagnostic strategies. RECENT FINDINGS There are differential trends in the incidences of TBP worldwide. Its incidence increased in China but decreased in the United States in the past decade. The presentation of TBP is heterogeneous regarding clinical symptoms, radiological findings and pleural fluid analysis results. Conventional microbiological tests have low sensitivities to diagnose TBP. Recent research focused on various diagnostic tools with better yield. The sensitivity of nucleic acid amplification tests (NAAT) in pleural fluid, including the latest generation of PCR and sequencing-based techniques for detecting tuberculosis, remains suboptimal. Various pleural fluid biomarkers have been explored, but there is a lack of consensus on their clinical utility and cutoff levels. SUMMARY The heterogeneity of clinical presentation poses obstacles to diagnosing TBP. Further development of diagnostic tools, including more robust NAAT and biomarkers with additional validation, is needed before incorporation into routine clinical practice.
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Affiliation(s)
- Ken Ka Pang Chan
- Department of Medicine & Therapeutics, Chinese University of Hong Kong, Sha Tin, Hong Kong
| | - Yun Chor Gary Lee
- Institute for Respiratory Health and Medical School, University of Western Australia, Perth, Western Australia, Australia
- Department of Respiratory Medicine, Sir Charles Gairdner Hospital, Nedlands, Western Australia, Australia
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21
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Hansen V, Jensen J, Kusk MW, Gerke O, Tromborg HB, Lysdahlgaard S. Deep learning performance compared to healthcare experts in detecting wrist fractures from radiographs: A systematic review and meta-analysis. Eur J Radiol 2024; 174:111399. [PMID: 38428318 DOI: 10.1016/j.ejrad.2024.111399] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/29/2024] [Accepted: 02/26/2024] [Indexed: 03/03/2024]
Abstract
OBJECTIVE To perform a systematic review and meta-analysis of the diagnostic accuracy of deep learning (DL) algorithms in the diagnosis of wrist fractures (WF) on plain wrist radiographs, taking healthcare experts consensus as reference standard. METHODS Embase, Medline, PubMed, Scopus and Web of Science were searched in the period from 1 Jan 2012 to 9 March 2023. Eligible studies were patients with wrist radiographs for radial and ulnar fractures as the target condition, studies using DL algorithms based on convolutional neural networks (CNN), and healthcare experts consensus as the minimum reference standard. Studies were assessed with a modified QUADAS-2 tool, and we applied a bivariate random-effects model for meta-analysis of diagnostic test accuracy data. RESULTS Our study was registered at PROSPERO with ID: CRD42023431398. We included 6 unique studies for meta-analysis, with a total of 33,026 radiographs. CNN performance compared to reference standards for the included articles found a summary sensitivity of 92% (95% CI: 80%-97%) and a summary specificity of 93% (95% CI: 76%-98%). The generalized bivariate I-squared statistic indicated considerable heterogeneity between the studies (81.90%). Four studies had one or more domains at high risk of bias and two studies had concerns regarding applicability. CONCLUSION The diagnostic accuracy of CNNs was comparable to that of healthcare experts in wrist radiographs for investigation of WF. There is a need for studies with a robust reference standard, external data-set validation and investigation of diagnostic performance of healthcare experts aided with CNNs. CLINICAL RELEVANCE STATEMENT DL matches healthcare experts in diagnosing WFs, which potentially benefits patient diagnosis.
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Affiliation(s)
- V Hansen
- Department of Radiology and Nuclear Medicine, Hospital of South West Jutland, University Hospital of Southern Denmark, Esbjerg, Denmark
| | - J Jensen
- Department of Radiology, Odense University Hospital, Odense, Denmark; Research and Innovation Unit of Radiology, University of Southern Denmark, Odense, Denmark
| | - M W Kusk
- Department of Radiology and Nuclear Medicine, Hospital of South West Jutland, University Hospital of Southern Denmark, Esbjerg, Denmark; Department of Regional Health Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark; Imaging Research Initiative Southwest (IRIS), Hospital of South West Jutland, University Hospital of Southern Denmark, Esbjerg, Denmark; Radiography and Diagnostic Imaging, School of Medicine, University College Dublin, Belfield 4, Dublin, Ireland
| | - O Gerke
- Department of Nuclear Medicine, Odense University Hospital, Odense, Denmark; Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - H B Tromborg
- Department of Clinical Research, University of Southern Denmark, Odense, Denmark; Department of Orthopedic Surgery, Odense University Hospital, Odense, Denmark
| | - S Lysdahlgaard
- Department of Radiology and Nuclear Medicine, Hospital of South West Jutland, University Hospital of Southern Denmark, Esbjerg, Denmark; Department of Regional Health Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark; Imaging Research Initiative Southwest (IRIS), Hospital of South West Jutland, University Hospital of Southern Denmark, Esbjerg, Denmark.
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Du Q, Ding Y, Wang Y, Wang J, Shao Y, Wang X. A novel phagomagnetic separation-ATP bioluminescence (PhMS-BL) for rapid and sensitive detection of viable Vibrio parahaemolyticus in aquatic product. Food Chem 2024; 439:138113. [PMID: 38043276 DOI: 10.1016/j.foodchem.2023.138113] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 11/22/2023] [Accepted: 11/27/2023] [Indexed: 12/05/2023]
Abstract
Detection of viable Vibrio parahaemolyticus (V. parahaemolyticus) is a major challenge due to its significant risk to food safety and human health. Herein, we developed a phagomagnetic separation-ATP bioluminescence (PhMS-BL) assay based on phage VPHZ6 for rapid and sensitive detection of viable V. parahaemolyticus. Phage as a recognition element was coupled to magnetic beads to capture and enrich V. parahaemolyticus, shortening detection time and improving method sensitivity. The intracellular ATP released by chemical lysis using CTAB was quantified using firefly fluorescein-adenosine triphosphate bioluminescence system to detect viable bacteria. So, PhMS-BL method was able to detect V. parahaemolyticus in a linear range of 2.3 × 102 to 1.3 × 107 CFU mL-1, with a detection limit of 78 CFU mL-1 within 15 min. It is successfully applied to detect V. parahaemolyticus in spiked lake water, lobster tail meat, and clam meat. The developed detection strategy can rapidly and sensitively detect viable V. parahaemolyticus in food matrixes.
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Affiliation(s)
- Qiaoling Du
- Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China; College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Yifeng Ding
- Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China; College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Yuanshang Wang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Jia Wang
- Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China; College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Yanchun Shao
- Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China; College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Xiaohong Wang
- Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China; College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
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23
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Wang L, Wang X, Jiang F, Cao Y, Liu S, Chen H, Yang J, Zhang X, Yu T, Xu H, Lin M, Wu Y, Zhang J. Adding quantitative T1rho-weighted imaging to conventional MRI improves specificity and sensitivity for differentiating malignant from benign breast lesions. Magn Reson Imaging 2024; 108:98-103. [PMID: 38331054 DOI: 10.1016/j.mri.2024.02.005] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/10/2024]
Abstract
OBJECTIVES To investigate the feasibility of T1rho-weighted imaging in differentiating malignant from benign breast lesions and to explore the additional value of T1rho to conventional MRI. MATERIALS AND METHODS We prospectively enrolled consecutive women with breast lesions who underwent preoperative T1rho-weighted imaging, diffusion-weighted imaging, and dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) between November 2021 and July 2023. The T1rho, apparent diffusion coefficient (ADC), and semi-quantitative parameters from DCE-MRI were obtained and compared between benign and malignant groups. The diagnostic performance was analyzed and compared using receiver operating characteristic (ROC) curves and the Delong Test. RESULTS This study included 113 patients (74 malignant and 39 benign lesions). The mean T1rho value in the benign group (92.61 ± 22.10 ms) was significantly higher than that in the malignant group (72.18 ± 16.37 ms) (P < 0.001). The ADC value and time to peak (TTP) value in the malignant group (1.13 ± 0.45 and 269.06 ± 106.01, respectively) were lower than those in the benign group (1.57 ± 0.45 and 388.30 ± 81.13, respectively) (all P < 0.001). T1rho combined with ADC and TTP showed good diagnostic performance with an area under the curve (AUC) of 0.896, a sensitivity of 81.0%, and a specificity of 87.1%. The specificity and sensitivity of the combination of T1rho, ADC, and TTP were significantly higher than those of the combination of ADC and TTP (87.1% vs. 84.6%, P < 0.005; 81.0% vs. 77.0%, P < 0.001). CONCLUSION T1rho-weighted imaging was a feasible MRI sequence for differentiating malignant from benign breast lesions. The combination of T1rho, ADC and TTP could achieve a favorable diagnostic performance with improved specificity and sensitivity, T1rho could serve as a supplementary approach to conventional MRI.
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Affiliation(s)
- Lu Wang
- Department of Radiology, Chongqing University Cancer Hospital, Chongqing Key Laboratory for Intelligent Oncology in Breast Cancer (iCQBC), Chongqing 400030, China
| | - Xiaoxia Wang
- Department of Radiology, Chongqing University Cancer Hospital, Chongqing Key Laboratory for Intelligent Oncology in Breast Cancer (iCQBC), Chongqing 400030, China
| | - Fujie Jiang
- Department of Radiology, Chongqing University Cancer Hospital, Chongqing Key Laboratory for Intelligent Oncology in Breast Cancer (iCQBC), Chongqing 400030, China
| | - Ying Cao
- School of Medicine, Chongqing University, Chongqing 400030, China
| | - Shuling Liu
- Department of Radiology, Chongqing University Cancer Hospital, Chongqing Key Laboratory for Intelligent Oncology in Breast Cancer (iCQBC), Chongqing 400030, China
| | - Huifang Chen
- Department of Radiology, Chongqing University Cancer Hospital, Chongqing Key Laboratory for Intelligent Oncology in Breast Cancer (iCQBC), Chongqing 400030, China
| | - Jing Yang
- Department of Radiology, Chongqing University Cancer Hospital, Chongqing Key Laboratory for Intelligent Oncology in Breast Cancer (iCQBC), Chongqing 400030, China
| | | | - Tao Yu
- Department of Radiology, Chongqing University Cancer Hospital, Chongqing Key Laboratory for Intelligent Oncology in Breast Cancer (iCQBC), Chongqing 400030, China
| | - Hanshan Xu
- Department of Radiology, Chongqing University Cancer Hospital, Chongqing Key Laboratory for Intelligent Oncology in Breast Cancer (iCQBC), Chongqing 400030, China
| | - Meng Lin
- Department of Radiology, Chongqing University Cancer Hospital, Chongqing Key Laboratory for Intelligent Oncology in Breast Cancer (iCQBC), Chongqing 400030, China
| | - Yongzhong Wu
- Radiation Oncology Center, Chongqing University, Chongqing 400030, China
| | - Jiuquan Zhang
- Department of Radiology, Chongqing University Cancer Hospital, Chongqing Key Laboratory for Intelligent Oncology in Breast Cancer (iCQBC), Chongqing 400030, China.
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Barra M, Chang M, Salcedo MP, Schmeler K, Scheurer M, Maza M, Lopez L, Alfaro K, Richards-Kortum R. Single-tube four-target lateral flow assay detects human papillomavirus types associated with majority of cervical cancers. Anal Biochem 2024; 688:115480. [PMID: 38331373 DOI: 10.1016/j.ab.2024.115480] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/10/2024]
Abstract
Isothermal nucleic acid amplification methods have many advantages for use at the point of care. However, there is a lack of multiplexed isothermal amplification tests to detect multiple targets in a single reaction, which would be valuable for many diseases, such as infection with high-risk human papillomavirus (hrHPV). In this study, we developed a multiplexed loop-mediated isothermal amplification (LAMP) reaction to detect the three most common hrHPV types that cause cervical cancer (HPV16, HPV18, and HPV45) and a cellular control for sample adequacy. First, we characterized the assay limit of detection (LOD) in a real-time reaction with fluorescence readout; after 30 min of amplification the LOD was 100, 10, and 10 copies/reaction of HPV16, HPV18, and HPV45, respectively, and 0.1 ng/reaction of human genomic DNA (gDNA). Next, we implemented the assay on lateral flow strips, and the LOD was maintained for HPV16 and HPV18, but increased to 100 copies/reaction for HPV45 and to 1 ng/reaction for gDNA. Lastly, we used the LAMP test to evaluate total nucleic acid extracted from 38 clinical samples; compared to qPCR, the LAMP test had 89% sensitivity and 95% specificity. When integrated with sample preparation, this multiplexed LAMP assay could be useful for point-of-care testing.
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Affiliation(s)
- Maria Barra
- Department of Bioengineering, Rice University, Houston, TX, USA
| | - Megan Chang
- Department of Bioengineering, Rice University, Houston, TX, USA
| | - Mila P Salcedo
- Department of Gynecologic Oncology & Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Kathleen Schmeler
- Department of Gynecologic Oncology & Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Michael Scheurer
- Department of Pediatrics Hematology/Oncology, Baylor College of Medicine, Houston, TX, USA
| | - Mauricio Maza
- Basic Health International, San Salvador, El Salvador
| | - Leticia Lopez
- Basic Health International, San Salvador, El Salvador
| | - Karla Alfaro
- Basic Health International, San Salvador, El Salvador
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25
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Lee MY, Heo KN, Lee S, Ah YM, Shin J, Lee JY. Development and validation of a medication-based risk prediction model for acute kidney injury in older outpatients. Arch Gerontol Geriatr 2024; 120:105332. [PMID: 38382232 DOI: 10.1016/j.archger.2024.105332] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 01/06/2024] [Accepted: 01/13/2024] [Indexed: 02/23/2024]
Abstract
BACKGROUND Older adults are at an increased risk of acute kidney injury (AKI), particularly in community settings, often due to medications. Effective prevention hinges on identifying high-risk patients, yet existing models for predicting AKI risk in older outpatients are scarce, particularly those incorporating medication variables. We aimed to develop an AKI risk prediction model that included medication-related variables for older outpatients. METHODS We constructed a cohort of 2,272,257 outpatients aged ≥65 years using a national claims database. This cohort was split into a development (70%) and validation (30%) groups. Our primary goal was to identify newly diagnosed AKI within one month of cohort entry in an outpatient context. We screened 170 variables and developed a risk prediction model using logistic regression. RESULTS The final model integrated 12 variables: 2 demographic, 4 comorbid, and 6 medication-related. It showed good performance with acceptable calibration. In the validation cohort, the area under the receiver operating characteristic curve value was 0.720 (95% confidence interval, 0.692-0.748). Sensitivity and specificity were 69.9% and 61.9%, respectively. Notably, the model identified high-risk patients as having a 27-fold increased AKI risk compared with low-risk individuals. CONCLUSION We have developed a new AKI risk prediction model for older outpatients, incorporating critical medication-related variables with good discrimination. This tool may be useful in identifying and targeting patients who may require interventions to prevent AKI in an outpatient setting.
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Affiliation(s)
- Mee Yeon Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Kyu-Nam Heo
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Suhyun Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Young-Mi Ah
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
| | - Jaekyu Shin
- Department of Clinical Pharmacy, School of Pharmacy, University of California, San Francisco, CA, United States
| | - Ju-Yeun Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea.
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Park K, Shin BM. Comparative evaluation of two molecular multiplex syndromic panels with acute gastroenteritis. Diagn Microbiol Infect Dis 2024; 109:116211. [PMID: 38447492 DOI: 10.1016/j.diagmicrobio.2024.116211] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 02/02/2024] [Accepted: 02/09/2024] [Indexed: 03/08/2024]
Abstract
We compared the Allplex Gastrointestinal V/B1/B2 Assays and Seeplex Diarrhea V/B1/B2 ACE Detection Assays in patients with acute gastroenteritis (AGE). Of the total 432 specimens, 48.8% and 54.9% samples were positive for any bacterial or viral target using Seeplex and Allplex, respectively (P = 0.002). The overall percent agreement (OPA) between the two panels was >95% and the lowest OPA was 95.4% for CdB. Allplex identified 40 samples positive for Salmonella spp., while Seeplex and OBC identified only 27 (67.5%) and 8 (20%), respectively. Shigella spp. were detected by assays in six samples, but none were identified using culture. Clostridium perfringens with Seeplex was detected in 70 (16.2%). It remained an informative species in identifying AGE although cpe gene showed only 9.8% positivity. Pathogenic Escherichia coli with Allplex could be detected in 40 (9.3%) samples, which could provide valuable information for the diagnosis of AGE.
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Affiliation(s)
- Kuenyoul Park
- Department of Laboratory Medicine, Sanggye Paik Hospital, School of Medicine, Inje University, 1342, Dongil-ro, Nowon-gu, Seoul 01757, Korea
| | - Bo-Moon Shin
- Department of Laboratory Medicine, Sanggye Paik Hospital, School of Medicine, Inje University, 1342, Dongil-ro, Nowon-gu, Seoul 01757, Korea.
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Zhang L, Liu J, Huang S, Zeng W, Li L, Fan X, Lu Z. A high-throughput DNA analysis method based on isothermal amplification on a suspension microarray for detecting mpox virus and viruses with comparable symptoms. Anal Chim Acta 2024; 1299:342416. [PMID: 38499413 DOI: 10.1016/j.aca.2024.342416] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/20/2024] [Accepted: 02/25/2024] [Indexed: 03/20/2024]
Abstract
BACKGROUND Mpox is a zoonotic disease caused by mpox virus (MPXV) infection. Since May 2022, there has been a marked increase in human mpox cases in different regions. Rash, fever, and sore throat are typical signs of mpox. However, other viruses, such as the B virus (BV), herpes simplex virus types 1 (HSV-1), herpes simplex virus types 2 (HSV-2), and varicella zoster virus (VZV), can also infect people and cause comparable symptoms. Therefore, clinical symptoms and signs alone make distinguishing MPXV from these viruses difficult. RESULTS In this study, we combined suspension microarray technology with recombinase-aided amplification technology (RAA) to establish a high-throughput, sensitive, and quantitative method for detecting MPXV and other viruses that can cause similar symptoms. The experimental results confirmed that the technique has outstanding sensitivity, with a minimum detection limit (LOD) of 0.1 fM and a linear range of 0.3 fM to 20 pM, spanning five orders of magnitude. The approach also exhibits exquisite selectivity, as the amplified signal can only be detected when the target virus nucleic acid is present. Additionally, serum recoveries ranging from 80.52% to 119.09% suggest that the detection outcomes are generally considered reliable. Moreover, the time required for detection using this high-throughput method is very short. After DNA extraction, the detection signal amplified by isothermal amplification on the bead array can be obtained in just 1 h. SIGNIFICANCE AND NOVELTY Our research introduces a new technique that utilizes suspension microarray technology and isothermal amplification to create a high-throughput nucleic acid assay. This innovative method offers multiple benefits compared to current techniques, such as being cost-effective, time-efficient, highly sensitive, and having high throughput capabilities. Furthermore, the assay is applicable not only for detecting MPXV and viruses with similar symptoms, but also for clinical diagnostics, food safety, and environmental monitoring, rendering it an effective tool for screening harmful microorganisms.
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Affiliation(s)
- Liming Zhang
- Key Laboratory of Tropical Molecular Pharmacology and Advanced Micro/Nano Diagnostic Technology, School of Tropical Medicine, Institute of Micro and Nanotechnology, School of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, 571199, China
| | - Jieyu Liu
- Key Laboratory of Tropical Molecular Pharmacology and Advanced Micro/Nano Diagnostic Technology, School of Tropical Medicine, Institute of Micro and Nanotechnology, School of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, 571199, China
| | - Shisi Huang
- Department of Medical Healthcare, Central South University Xiangya School of Medicine Affiliated Haikou Hospital, Haikou, 570208, China
| | - Wentao Zeng
- Key Laboratory of Tropical Molecular Pharmacology and Advanced Micro/Nano Diagnostic Technology, School of Tropical Medicine, Institute of Micro and Nanotechnology, School of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, 571199, China
| | - Li Li
- Key Laboratory of Tropical Molecular Pharmacology and Advanced Micro/Nano Diagnostic Technology, School of Tropical Medicine, Institute of Micro and Nanotechnology, School of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, 571199, China
| | - Xihao Fan
- Key Laboratory of Tropical Molecular Pharmacology and Advanced Micro/Nano Diagnostic Technology, School of Tropical Medicine, Institute of Micro and Nanotechnology, School of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, 571199, China
| | - Zhuoxuan Lu
- Key Laboratory of Tropical Molecular Pharmacology and Advanced Micro/Nano Diagnostic Technology, School of Tropical Medicine, Institute of Micro and Nanotechnology, School of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, 571199, China.
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Pan X, Wang J, Zhang K, Sun P, Shi J, Zhi J, Cai Z, Li Z, Wang D, Tong B, Dong Y. Differential detection of H1N1 virus spiker proteins by two hexaphenylbutadiene isomers based on size-matching principle. Anal Chim Acta 2024; 1299:342452. [PMID: 38499411 DOI: 10.1016/j.aca.2024.342452] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 02/05/2024] [Accepted: 03/05/2024] [Indexed: 03/20/2024]
Abstract
As one of the high pathogenic influenza viruses, H1N1 virus easily induces to serious diseases, even leading to death. To date, all detection methods for H1N1 virus had shortcomings, including high equipment cost, time consumption, and etc. Therefore, a novel detection method should be established to achieve more convenient, rapid, and low-cost detection. In this work, an isomer of HPBmN-I with aggregation-induced emission characteristic was firstly synthesized on the basis of our previous reported HPBpN-I. The results showed that HPBmN-I only selectively binds to N1 in the presence of H1, while HPBpN-I can exhibit total fluorescence response to H1 and N1 in H1/N1 mixture. The limited of detection (LOD) of HPBmN-I to N1 was estimated to be 20.82 ng/mL in normal saline (NS) according to the IUPAC-based approach. The simulation calculations based on molecular docking revealed that four HPBmN-I molecules combine well with the hydrophobic cavity of N1 and achieve the fluorescence enhancement due to size matching with each other. The combination of HPBpN-I and HPBmN-I as probes was successfully used to quantitatively detect H1 and N1 in real H1N1 virus. Compared to enzyme-linked immunosorbent assay (ELISA) method, the established method not only showed the same detection accuracy but also had the advantages of real-time, ease of preparation, and low-cost, demonstrating potential market prospects.
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Affiliation(s)
- Xiaoling Pan
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Material Science & Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, China; Department of Nanomedicine & Shanghai Key Lab of Cell Engineering, Naval Medical University, Shanghai, 200433, China
| | - Jian Wang
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Material Science & Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, China
| | - Kai Zhang
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Material Science & Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, China
| | - Peng Sun
- Advanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, China
| | - Jianbing Shi
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Material Science & Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, China
| | - Junge Zhi
- School of Chemistry, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, China
| | - Zhengxu Cai
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Material Science & Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, China
| | - Zi Li
- National Institute for Viral Disease Control and Prevention, Collaboration Innovation Center for Diagnosis and Treatment of Infectious Diseases, Chinese Center for Disease Control and Prevention, Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing, 102206, China
| | - Dayan Wang
- National Institute for Viral Disease Control and Prevention, Collaboration Innovation Center for Diagnosis and Treatment of Infectious Diseases, Chinese Center for Disease Control and Prevention, Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing, 102206, China
| | - Bin Tong
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Material Science & Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, China.
| | - Yuping Dong
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Material Science & Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing, 100081, China.
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Changtor P, Rodriguez-Mateos P, Buddhachat K, Wattanachaiyingcharoen W, Iles A, Kerdphon S, Yimtragool N, Pamme N. Integration of IFAST-based nucleic acid extraction and LAMP for on-chip rapid detection of Agroathelia rolfsii in soil. Biosens Bioelectron 2024; 250:116051. [PMID: 38301544 DOI: 10.1016/j.bios.2024.116051] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/15/2024] [Accepted: 01/17/2024] [Indexed: 02/03/2024]
Abstract
Agroathelia rolfsii (A. rolfsii) is a fungal infection and poses a significant threat to over 500 plant species worldwide. It can reduce crop yields drastically resulting in substantial economic losses. While conventional detection methods like PCR offer high sensitivity and specificity, they require specialized and expensive equipment, limiting their applicability in resource-limited settings and in the field. Herein, we present an integrated workflow with nucleic acid extraction and isothermal amplification in a lab-on-a-chip cartridge based on immiscible filtration assisted by surface tension (IFAST) to detect A. rolfsii fungi in soil for point-of-need application. Our approach enabled both DNA extraction of A. rolfsii from soil and subsequent colorimetric loop-mediated isothermal amplification (LAMP) to be completed on a single chip, termed IFAST-LAMP. LAMP primers targeting ITS region of A. rolfsii were newly designed and tested. Two DNA extraction methods based on silica paramagnetic particles (PMPs) and three LAMP assays were compared. The best-performing assay was selected for on-chip extraction and detection of A. rolfsii from soil samples inoculated with concentrations of 3.75, 0.375 and 0.0375 mg fresh weight per 100-g soil (%FW). The full on-chip workflow was achieved within a 1-h turnaround time. The platform was capable of detecting as low as 3.75 %FW at 2 days after inoculation and down to 0.0375 %FW at 3 days after inoculation. The IFAST-LAMP could be suitable for field-applicability for A. rolfsii detection in low-resource settings.
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Affiliation(s)
- Phanupong Changtor
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden; Department of Biology, Faculty of Science, Naresuan University, Phitsanulok, Thailand
| | - Pablo Rodriguez-Mateos
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden
| | - Kittisak Buddhachat
- Department of Biology, Faculty of Science, Naresuan University, Phitsanulok, Thailand
| | - Wandee Wattanachaiyingcharoen
- Department of Biology, Faculty of Science, Naresuan University, Phitsanulok, Thailand; Center of Excellence for Biodiversity, Faculty of Science, Naresuan University, Phitsanulok, Thailand
| | - Alexander Iles
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden
| | - Sutthichat Kerdphon
- Department of Chemistry, Faculty of Science, Naresuan University, Phitsanulok, Thailand
| | - Nonglak Yimtragool
- Department of Biology, Faculty of Science, Naresuan University, Phitsanulok, Thailand; Center of Excellence for Biodiversity, Faculty of Science, Naresuan University, Phitsanulok, Thailand.
| | - Nicole Pamme
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden.
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Li J, Saidi AM, Seydel K, Lillehoj PB. Rapid diagnosis and prognosis of malaria infection using a microfluidic point-of-care immunoassay. Biosens Bioelectron 2024; 250:116091. [PMID: 38325074 DOI: 10.1016/j.bios.2024.116091] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 01/23/2024] [Accepted: 01/28/2024] [Indexed: 02/09/2024]
Abstract
Malaria is a major cause of illness and death worldwide. Rapid diagnostic tests are the most widely used tool for detecting malaria infection, however, they only provide binary results and lack the sensitivity needed to detect many asymptomatic infections. Molecular assays for quantifying malaria biomarkers offer higher detection sensitivity, however, they are time-consuming, and require expert training and expensive equipment, making them unsuitable for use in most of Africa. To address the need for simple, accurate and field-deployable malaria diagnostic tests, we have developed a microfluidic point-of-care (mPOC) immunoassay for rapid quantification of Plasmodium falciparum histidine-rich protein 2 (PfHRP2), a malaria parasite biomarker, in whole blood. This device features two diagnostic modes for detecting PfHRP2 at low (100's pg/mL) and high (1,000's ng/mL) concentrations, making it useful for multiple diagnostic applications, including the detection of asymptomatic infection, prediction of disease outcomes and diagnosis of cerebral malaria. Measurements of PfHRP2 in blood samples from malaria patients demonstrates that this platform offers similar accuracy as an ultra-sensitive PfHRP2 enzyme-linked immunosorbent assay (ELISA) test, while being 12× faster and simpler to use. This mPOC immunoassay can be deployed in rural health centers to assist clinicians in diagnosing and triaging malaria patients, ultimately improving patient outcomes.
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Affiliation(s)
- Jiran Li
- Department of Mechanical Engineering, Rice University, Houston, TX 77005, USA
| | - Alexuse M Saidi
- Blantyre Malaria Project, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - Karl Seydel
- Blantyre Malaria Project, Kamuzu University of Health Sciences, Blantyre, Malawi; Department of Osteopathic Medical Specialties, College of Osteopathic Medicine, Michigan State University, East Lansing, MI 48864, USA
| | - Peter B Lillehoj
- Department of Mechanical Engineering, Rice University, Houston, TX 77005, USA; Department of Bioengineering, Rice University, Houston, TX 77030, USA.
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Klontz EH, Solomon IH, Turbett SE, Lemieux JE, Branda JA. Cerebrospinal fluid metagenomics has greatest added value as a test for Powassan virus among patients in New England with suspected central nervous system infection. Diagn Microbiol Infect Dis 2024; 108:116169. [PMID: 38295682 DOI: 10.1016/j.diagmicrobio.2023.116169] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 12/19/2023] [Accepted: 12/27/2023] [Indexed: 02/27/2024]
Abstract
Cerebrospinal fluid (CSF) metagenomic next generation sequencing (mNGS) can detect diverse pathogens in patients with central nervous system infection. Due to its high cost and unclear clinical utility, it is typically reserved for patients with unrevealing routine workups. A multi-center retrospective analysis of real-world CSF mNGS was performed involving orders between 2017 and 2022 at a large New England healthcare system. CSF mNGS was performed 64 times with 17 positive results (27 %). In 11/17 positive samples (65 %), the infectious agent had not been previously detected using routine methods. Arboviruses (n = 8) were the most frequently detected agents, particularly Powassan virus (n = 6). Results changed therapy in 3/64 cases (5 %). Positive results were associated with immunodeficiency (p = 0.06), especially anti-B-cell therapy (p = 0.02), and earlier sample collection (p = 0.06). The association with compromised humoral immunity was stronger in the arbovirus and Powassan virus subgroups (p = 0.001), whose constituents were older than the overall cohort and had higher mortality rates.
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Affiliation(s)
- Erik H Klontz
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Isaac H Solomon
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Sarah E Turbett
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Jacob E Lemieux
- Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - John A Branda
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
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Park HJ, Winant AJ, Lee EY, Kim WG, Shashi K, Stamoulis C, Paltiel HJ. Contrast-Enhanced Ultrasound of the Chest in Children and Adolescents: A Pilot Study for Assessment of Added Diagnostic Value. J Ultrasound Med 2024; 43:697-711. [PMID: 38189176 DOI: 10.1002/jum.16395] [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: 06/30/2023] [Revised: 10/30/2023] [Accepted: 11/28/2023] [Indexed: 01/09/2024]
Abstract
OBJECTIVES To determine the added diagnostic value of contrast-enhanced ultrasound (CEUS) in pediatric chest abnormalities by comparing interpretation of CEUS studies and confidence level to conventional US studies. METHODS CEUS studies in patients with a variety of clinically suspected chest abnormalities performed between 2016 and 2020 were reviewed and compared to same-day conventional US studies. Examinations were independently interpreted by 4 radiologists blinded to clinical and other imaging data. Rater confidence was classified as low, moderate, or high. Diagnostic accuracy was determined by comparing image interpretation to patient outcome as the ground truth. Interobserver agreement was also assessed. RESULTS Sixteen patients (10 male) with 18 CEUS studies were included. Median rater agreement with ground truth was significantly higher for CEUS (100%) than conventional US (50%; P = .004). Median rater confidence was high (3.0) for CEUS, and low-moderate (1.5) for conventional US (P < .001). CEUS sensitivity (54.6-81.8%) and specificity (63.4-100.0%) were greater than conventional US (45.5-72.7% and 12.5-63.5%, respectively). CEUS false positives (0-4) and false negatives (2-5) were fewer than conventional US (4-7 and 3-6, respectively). Except for one rater pair where agreement was substantial (κ = .78, P < .01), inter-rater agreement for CEUS for all other rater pairs was nonsignificant (κ = .25-0.51, P ≥ .07). Agreement for conventional US was moderate and statistically significant for 3 rater pairs (κ = .55-0.78) and nonsignificant for the remaining 3 rater pairs (P ≥ .06). CONCLUSIONS CEUS adds diagnostic value to the assessment of a variety of chest abnormalities. The data support further evaluation of the role of CEUS as a non-invasive, problem-solving technique in children.
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Affiliation(s)
- Halley J Park
- Department of Radiology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Abbey J Winant
- Department of Radiology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Edward Y Lee
- Department of Radiology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Wendy G Kim
- Department of Radiology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Kumar Shashi
- Department of Radiology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Catherine Stamoulis
- Department of Pediatrics, Division of Adolescent and Young Adult Medicine, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Harriet J Paltiel
- Department of Radiology, Boston Children's Hospital, Boston, Massachusetts, USA
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Kny E, Hasler R, Luczak W, Knoll W, Szunerits S, Kleber C. State of the art and future research directions of materials science applied to electrochemical biosensor developments. Anal Bioanal Chem 2024; 416:2247-2259. [PMID: 38006442 DOI: 10.1007/s00216-023-05054-2] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/08/2023] [Accepted: 11/13/2023] [Indexed: 11/27/2023]
Abstract
Centralized laboratories in which analytical processes are automated to enable the analysis of large numbers of samples at relatively low cost are used for analytical testing throughout the world. However, healthcare is changing, partly due to the general recognition that care needs to be more patient-centered and putting the patient at the center of action. One way to achieve this goal is to consider point-of-care testing (PoC) devices as alternative analytical concepts. This requires miniaturization of current analytical concepts and the use of cost-effective diagnostic tools with appropriate sensitivity and specificity. Electrochemical sensors are ideally adapted as they provide robust, low-cost, and miniaturized solutions for the detection of variable analytes, yet lack the high sensitivity comparable to more classical diagnosis approaches. Advances in nanotechnology have opened up a plethora of different nanomaterials to be applied as electrode and/or sensing materials in electrochemical biosensors. The choice of materials significantly influences the sensor's sensitivity, selectivity, and overall performance. A critical review of the state of the art with respect to the development of the utilized materials (between 2019 and 2023) and where the field is heading to are the focus of this article.
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Affiliation(s)
- Erich Kny
- Laboratory for Life Sciences and Technology (LiST), Faculty of Medicine and Dentistry, Danube Private University, 3500, Krems, Austria
| | - Roger Hasler
- Laboratory for Life Sciences and Technology (LiST), Faculty of Medicine and Dentistry, Danube Private University, 3500, Krems, Austria
| | - Wiktor Luczak
- Laboratory for Life Sciences and Technology (LiST), Faculty of Medicine and Dentistry, Danube Private University, 3500, Krems, Austria
| | - Wolfgang Knoll
- Laboratory for Life Sciences and Technology (LiST), Faculty of Medicine and Dentistry, Danube Private University, 3500, Krems, Austria
| | - Sabine Szunerits
- Laboratory for Life Sciences and Technology (LiST), Faculty of Medicine and Dentistry, Danube Private University, 3500, Krems, Austria
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520 - IEMN, F-59000, Lille, France
| | - Christoph Kleber
- Laboratory for Life Sciences and Technology (LiST), Faculty of Medicine and Dentistry, Danube Private University, 3500, Krems, Austria.
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Savill M, Loewy RL, Niendam TA, Porteus AJ, Rosenthal A, Gobrial S, Meyer M, Bolden KA, Lesh TA, Ragland JD, Carter CS. The diagnostic accuracy of screening for psychosis spectrum disorders in behavioral health clinics integrated into primary care. Schizophr Res 2024; 266:190-196. [PMID: 38422889 DOI: 10.1016/j.schres.2024.02.007] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 01/29/2024] [Accepted: 02/10/2024] [Indexed: 03/02/2024]
Abstract
Screening for psychosis spectrum disorders in primary care could improve early identification and reduce the duration of untreated psychosis. However, the accuracy of psychosis screening in this setting is unknown. To address this, we conducted a diagnostic accuracy study of screening for psychosis spectrum disorders in eight behavioral health services integrated into primary care clinics. Patients attending an integrated behavioral health appointment at their primary care clinic completed the Prodromal Questionnaire - Brief (PQ-B) immediately prior to their intake assessment. This was compared to a diagnostic phone interview based on the Structured Interview for Psychosis Risk Syndromes (SIPS). In total, 145 participants completed all study procedures, of which 100 screened positive and 45 negative at a provisional PQ-B threshold of ≥20. The PQ-B was moderately accurate at differentiating psychosis spectrum from no psychosis spectrum disorders; a PQ-B distress score of ≥27 had a sensitivity and specificity of 71.2 % and 57.0 % respectively. In total, 66 individuals (45.5 %) met criteria for a psychosis spectrum disorder and 24 (16.7 %) were diagnosed with full psychosis, indicating a high prevalence of psychosis in the sample. Overall, screening for psychosis spectrum disorders in an IBH primary care setting identified a relatively high number of individuals and may identify people that would otherwise be missed. The PQ-B performed slightly less well than in population-based screening in community mental health settings. However, the findings suggest this may represent an effective way to streamline the pathway between specialty early psychosis programs and primary care clinics for those in need.
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Affiliation(s)
- Mark Savill
- University of California, Davis, United States of America.
| | - Rachel L Loewy
- University of California, San Francisco, United States of America
| | - Tara A Niendam
- University of California, Davis, United States of America
| | | | - Adi Rosenthal
- University of California, Davis, United States of America
| | - Sarah Gobrial
- University of California, Davis, United States of America
| | - Monet Meyer
- University of California, Davis, United States of America
| | | | - Tyler A Lesh
- University of California, Davis, United States of America
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Cannella R, Zins M, Brancatelli G. ESR Essentials: diagnosis of hepatocellular carcinoma-practice recommendations by ESGAR. Eur Radiol 2024; 34:2127-2139. [PMID: 38379018 PMCID: PMC10957713 DOI: 10.1007/s00330-024-10606-w] [Citation(s) in RCA: 1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 12/04/2023] [Accepted: 12/08/2023] [Indexed: 02/22/2024]
Abstract
Hepatocellular carcinoma (HCC) is the most common primary hepatic malignancy and a leading cause of cancer related death worldwide. Current guidelines for the noninvasive diagnosis of HCC are provided by the European Association for the Study of the Liver (EASL), the American Association for the Study of Liver Diseases (AASLD) which endorsed the Liver Imaging Reporting and Data System (LI-RADS) algorithm, the Korean Liver Cancer Association-National Cancer Center (KLCA-NCC), and the Asian-Pacific Association for the Study of the Liver (APASL). These allow the diagnosis of HCC in high-risk patients in the presence of typical imaging features on contrast-enhanced CT, MRI, or contrast-enhanced ultrasound. Size, non-rim arterial phase hyperenhancement, non-peripheral washout, enhancing capsule, and growth are major imaging features and they should be combined for the diagnosis of HCC. This article provides concise and relevant practice recommendations aimed at general radiologist audience, summarizing the best practice and informing on the essential imaging criteria for the diagnosis of HCC, while also discussing the high-risk population criteria, imaging modalities, and imaging features according to the current guidelines. KEY POINTS: • Noninvasive diagnosis of hepatocellular carcinoma (HCC) can be provided only in patients at high risk. • Contrast-enhanced CT or MRI are the first-line imaging exams for the diagnosis of HCC. • Major imaging features should be combined to provide the diagnosis of definitive HCC.
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Affiliation(s)
- Roberto Cannella
- Section of Radiology - Department of Biomedicine, Neuroscience and Advanced Diagnostics (BiND), University of Palermo, Palermo, Italy.
| | - Marc Zins
- Department of Radiology, Saint Joseph and Marie Lannelongue Hospitals, Paris, France
| | - Giuseppe Brancatelli
- Section of Radiology - Department of Biomedicine, Neuroscience and Advanced Diagnostics (BiND), University of Palermo, Palermo, Italy
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Puente-López E, Pina D, Rambaud-Quiñones P, Ruiz-Hernández JA, Nieto-Cañaveras MD, Shura RD, Alcazar-Crevillén A, Martinez-Jarreta B. Classification accuracy and resistance to coaching of the Spanish version of the Inventory of Problems-29 and the Inventory of Problems-Memory: A simulation study with mTBI patients. Clin Neuropsychol 2024; 38:738-762. [PMID: 37615421 DOI: 10.1080/13854046.2023.2249171] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 08/12/2023] [Indexed: 08/25/2023]
Abstract
Objective: The present study aims to evaluate the classification accuracy and resistance to coaching of the Inventory of Problems-29 (IOP-29) and the IOP-Memory (IOP-M) with a Spanish sample of patients diagnosed with mild traumatic brain injury (mTBI) and healthy participants instructed to feign. Method: Using a simulation design, 37 outpatients with mTBI (clinical control group) and 213 non-clinical instructed feigners under several coaching conditions completed the Spanish versions of the IOP-29, IOP-M, Structured Inventory of Malingered Symptomatology, and Rivermead Post Concussion Symptoms Questionnaire. Results: The IOP-29 discriminated well between clinical patients and instructed feigners, with an excellent classification accuracy for the recommended cutoff score (FDS ≥ .50; sensitivity = 87.10% for coached group and 89.09% for uncoached; specificity = 95.12%). The IOP-M also showed an excellent classification accuracy (cutoff ≤ 29; sensitivity = 87.27% for coached group and 93.55% for uncoached; specificity = 97.56%). Both instruments proved to be resistant to symptom information coaching and performance warnings. Conclusions: The results confirm that both of the IOP measures offer a similarly valid but different perspective compared to SIMS when assessing the credibility of symptoms of mTBI. The encouraging findings indicate that both tests are a valuable addition to the symptom validity practices of forensic professionals. Additional research in multiple contexts and with diverse conditions is warranted.
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Affiliation(s)
| | - David Pina
- Applied Psychology Service, Universidad de Murcia, Murcia, Spain
| | | | | | | | - Robert D Shura
- Mid-Atlantic (VISN 6) Mental Illness Research, Education, and Clinical Center (MIRECC), Salisbury VA Medical Center, Salisbury, NC, USA
| | | | - Begoña Martinez-Jarreta
- Mutua MAZ, Zaragoza, Spain
- Department of Pathological Anatomy, Forensic and Legal Medicine and Toxicology, Universidad de Zaragoza, Zaragoza, Spain
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Ma YH, Liu Y, Li T, Xu ZQ, Chai JJ, Liu A, Ma QH, Gao LJ, Li MC. An experimental study on the visual identification of Fritillaria ussuriensis based on LAMP and nucleic acid colloidal gold technique. Anal Biochem 2024; 687:115430. [PMID: 38147947 DOI: 10.1016/j.ab.2023.115430] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 12/11/2023] [Accepted: 12/13/2023] [Indexed: 12/28/2023]
Abstract
Fritillaria ussuriensis Maxim is one of the traditional Chinese valuable herbs, which is the dried bulb of Fritillaria, a plant of the lily family. The identification of authenticity about F. ussuriensis is still technically challenging. In this study, visual identification was performed by ring-mediated isothermal amplification and nucleic acid colloidal gold techniques. Firstly, multiple sequence comparative analysis was performed by DNAMAN to find the differential sites of F. ussuriensis and its mixed pseudo-products, and the specific identification primers of F. ussuriensis were designed. Genomic DNA was extracted by the modified CTAB method, and the reaction system and reaction conditions were optimized to construct LAMP for the visual detection of F. ussuriensis, meanwhile, the genuine product was cloned and the extracted plasmid was sequenced. The specificity and sensitivity were detected, and also verified by nucleic acid colloidal gold method, and 20 commercially available samples were tested. The extracted DNA met the requirements of the experiment, and the genuine F. ussuriensis PCR product titrated on a test strip showed two bands on the T and C lines, while the counterfeit and negative control showed only one band on the C line, which matched the LAMP results. The specificity was 100 %, and the sensitivity of LAMP assay was up to 0.01 ng μL-1, while that of colloidal gold assay was 0.1 ng μL-1, thus the LAMP assay had high sensitivity. 14 out of 20 commercially available samples of F. ussuriensis were qualified, and 6 were unqualified, and the results of the two methods of identification were consistent. In this study, the combined detection method of LAMP and colloidal gold for nucleic acid was established to be specific, rapid, precise and visualized, which can provide a new technical idea for the detection of F. ussuriensis.
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Affiliation(s)
- Yu-He Ma
- School of Medical Technology, Beihua University, Jilin, 132013, China
| | - Yue Liu
- School of Medical Technology, Beihua University, Jilin, 132013, China
| | - Tao Li
- School of Medical Technology, Beihua University, Jilin, 132013, China
| | - Zi-Qiang Xu
- School of Medical Technology, Beihua University, Jilin, 132013, China
| | - Jin-Jun Chai
- School of Medical Technology, Beihua University, Jilin, 132013, China
| | - Ang Liu
- School of Medical Technology, Beihua University, Jilin, 132013, China
| | - Qiu-He Ma
- School of Medical Technology, Beihua University, Jilin, 132013, China
| | - Li-Jun Gao
- School of Medical Technology, Beihua University, Jilin, 132013, China.
| | - Ming-Cheng Li
- School of Medical Technology, Beihua University, Jilin, 132013, China; Innovation Center for Detection on DNA Fingerprint of Traditional Chinese Medicine, Jilin, 132013, China
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Shao LJ, Wang YJ, Yin SS, Jiang BB, Liu YH, Wang JC, Yang W, Wu W, Yan K. Evaluation of the Time Difference Method in Identifying Hepatocellular Carcinoma in Current CEUS LR-M Category Nodules. Ultrasound Med Biol 2024; 50:502-508. [PMID: 38246805 DOI: 10.1016/j.ultrasmedbio.2023.12.010] [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: 08/25/2023] [Revised: 11/15/2023] [Accepted: 12/07/2023] [Indexed: 01/23/2024]
Abstract
OBJECTIVE The aim of the work described here was to explore a potential method for improving the diagnostic detection of hepatocellular carcinoma (HCC) based on the contrast-enhanced ultrasound (CEUS) Liver Imaging Reporting and Data System (LI-RADS) Version 2017. METHODS We retrospectively evaluated 585 liver nodules in 427 patients at risk for HCC from December 2020 to March 2023. The nodules were categorized as LR-1 to LR-M based on CEUS LI-RADS Version 2017 and were randomly subclassified into a developmental cohort (DC) and a validation cohort (VC) at 3:1. In the DC, the cutoff value of the time difference (∆T) for differentiating HCC from other malignancies by LR-M was calculated and used to reclassify nodules in the VC. The diagnostic effect on HCC detection before and after reclassification was further assessed. RESULTS According to the current CEUS LI-RADS, 140 of 426 (32.9%) confirmed HCC nodules were misclassified as LR-M. In the DC (439 nodules), the receiver operating characteristic (ROC) curve revealed that the cutoff value of ∆T (wash-out onset time minus contrast arrival time) recommended for HCC diagnosis was greater than 21 s. In the VC (146 nodules), 34 HCCs were correctly categorized as LR-5 according to the cutoff value, and after reclassification, LR-5 had higher accuracy (67.1% vs. 89.0%, p < 0.001) and sensitivity (56.0% vs. 87.2%, p < 0.001) for HCC diagnosis with high specificity (100% vs. 94.6%, p = 0.500). CONCLUSION Using the time difference method could identify HCC nodules misdiagnosed as LR-M and improve the diagnostic performance of current CEUS LI-RADS.
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Affiliation(s)
- Li-Jin Shao
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Ultrasonography, Peking University Cancer Hospital and Institute, Beijing, China
| | - Yan-Jie Wang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Ultrasonography, Peking University Cancer Hospital and Institute, Beijing, China
| | - Shan-Shan Yin
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Ultrasonography, Peking University Cancer Hospital and Institute, Beijing, China
| | - Bin-Bin Jiang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Ultrasonography, Peking University Cancer Hospital and Institute, Beijing, China
| | - Yu-Hui Liu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Ultrasonography, Peking University Cancer Hospital and Institute, Beijing, China
| | - Ji-Chen Wang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Ultrasonography, Peking University Cancer Hospital and Institute, Beijing, China
| | - Wei Yang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Ultrasonography, Peking University Cancer Hospital and Institute, Beijing, China
| | - Wei Wu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Ultrasonography, Peking University Cancer Hospital and Institute, Beijing, China
| | - Kun Yan
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Ultrasonography, Peking University Cancer Hospital and Institute, Beijing, China.
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Taghizadeh G, Sarlak N, Fallah S, Sharabiani PTA, Cheraghifard M. Minimal clinically important differenceof fatigue severity scale in patients with chronic stroke. J Stroke Cerebrovasc Dis 2024; 33:107577. [PMID: 38325034 DOI: 10.1016/j.jstrokecerebrovasdis.2024.107577] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 12/18/2023] [Accepted: 01/11/2024] [Indexed: 02/09/2024] Open
Abstract
BACKGROUND One of the most prevalent symptoms of stroke is fatigue. Fatigue severity scale is the most often used tool for evaluating fatigue in stroke patients, its minimal clinically important difference threshold has not been determined. This study aimed to identify the minimal clinically important difference of fatigue severity scale in stroke patients. METHODS All study participants were examined using fatigue severity scale and multidimensional fatigue symptom inventory-short form before and after the intervention. The 6-week intervention combined graded activity training and pacing therapy employed to reduce fatigue severity. Participants reported changes in their fatigue severity after the intervention with the global rating of change and visual analog scale. The minimal clinically important difference of the fatigue severity scale calculated using both anchor- and distribution-based methods. RESULTS A total of 117 stroke patients were included in the study. Using multidimensional fatigue symptom inventory-short form, global rating of change, and visual analog scale as an anchor, the minimal clinically important difference of fatigue severity scale was obtained at 3.5, 4.5, and 4.5, respectively. The minimal clinically important difference for fatigue severity scale varied from 4.28 to 12.90 using the distribution-based method, with SEM = 4.28 displaying the best sensitivity and specificity for use as minimal clinically important difference. CONCLUSIONS The minimal clinically important difference value for the fatigue severity scale was estimated at 3.5_12.90 using anchor-based and distribution-based methods. The study's results can be utilized to understand the effectiveness of fatigue interventions in stroke patients in clinical and research settings.
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Affiliation(s)
- Ghorban Taghizadeh
- Rehabilitation Research Center, Department of Occupational Therapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Nazanin Sarlak
- Department of Occupational Therapy, School of Rehabilitation Sciences, Arak University of Medical Sciences, Arak, Iran
| | - Soheila Fallah
- Department of Neurosciences, Faculty of Advanced Technologist in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | | | - Moslem Cheraghifard
- Rehabilitation Research Center, Department of Occupational Therapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran.
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Andersson D, Kebede FT, Escobar M, Österlund T, Ståhlberg A. Principles of digital sequencing using unique molecular identifiers. Mol Aspects Med 2024; 96:101253. [PMID: 38367531 DOI: 10.1016/j.mam.2024.101253] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/26/2024] [Accepted: 02/03/2024] [Indexed: 02/19/2024]
Abstract
Massively parallel sequencing technologies have long been used in both basic research and clinical routine. The recent introduction of digital sequencing has made previously challenging applications possible by significantly improving sensitivity and specificity to now allow detection of rare sequence variants, even at single molecule level. Digital sequencing utilizes unique molecular identifiers (UMIs) to minimize sequencing-induced errors and quantification biases. Here, we discuss the principles of UMIs and how they are used in digital sequencing. We outline the properties of different UMI types and the consequences of various UMI approaches in relation to experimental protocols and bioinformatics. Finally, we describe how digital sequencing can be applied in specific research fields, focusing on cancer management where it can be used in screening of asymptomatic individuals, diagnosis, treatment prediction, prognostication, monitoring treatment efficacy and early detection of treatment resistance as well as relapse.
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Affiliation(s)
- Daniel Andersson
- Sahlgrenska Center for Cancer Research, Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, 413 90, Gothenburg, Sweden
| | - Firaol Tamiru Kebede
- Sahlgrenska Center for Cancer Research, Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, 413 90, Gothenburg, Sweden
| | - Mandy Escobar
- Sahlgrenska Center for Cancer Research, Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, 413 90, Gothenburg, Sweden
| | - Tobias Österlund
- Sahlgrenska Center for Cancer Research, Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, 413 90, Gothenburg, Sweden; Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, 413 90, Gothenburg, Sweden; Department of Clinical Genetics and Genomics, Sahlgrenska University Hospital, 413 45, Gothenburg, Sweden
| | - Anders Ståhlberg
- Sahlgrenska Center for Cancer Research, Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, 413 90, Gothenburg, Sweden; Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, 413 90, Gothenburg, Sweden; Department of Clinical Genetics and Genomics, Sahlgrenska University Hospital, 413 45, Gothenburg, Sweden.
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Heideman DAM, Berkhof J, Verhoef L, Ouwerkerk C, Smit PW, Oštrbenk Valenčak A, Mlakar J, Poljak M, Steenbergen RDM, Bleeker MCG. Validation of the clinical performance and reproducibility of the NeuMoDx HPV assay self-sample workflow. J Clin Virol 2024; 171:105649. [PMID: 38335717 DOI: 10.1016/j.jcv.2024.105649] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 01/15/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024]
Abstract
BACKGROUND Human papillomavirus (HPV) testing on self-samples is a valid tool for cervical cancer screening. HPV self-sample workflows need to be clinically validated to ensure safe use in screening. OBJECTIVE This study evaluated the fully automated NeuMoDx HPV Assay self-sample workflow that is compiled of the NeuMoDx HPV assay and the NeuMoDx 96/288 Molecular Systems, for clinical performance and reproducibility on Evalyn Brush-collected self-samples. METHODS The clinical performance of the NeuMoDx HPV Assay self-sample workflow for cervical intraepithelial neoplasia grade 2 or worse (CIN2+) and CIN3+ was evaluated on 987 self-samples obtained from women attending national organized HPV-based cervical cancer screening by a noninferiority analysis relative to reference workflows using either HPV-Risk Assay or high-risk HPV GP5+/6+-PCR. Intra- and inter-laboratory reproducibility of the NeuMoDx HPV Assay self-sample workflow using both NeuMoDx 96 and 288 Molecular Systems was assessed on 520 self-samples in three laboratories. RESULTS The clinical sensitivity and specificity of the NeuMoDx HPV Assay self-sample workflow for the detection of CIN2+ and CIN3+ were found to be non-inferior to the reference workflows using either HPV-Risk Assay or high-risk HPV GP5+/6+-PCR, with all p-values <0.034. The NeuMoDx HPV Assay self-sample workflow exhibited an intra-laboratory reproducibility of 94.4 % (95 %CI:92.5-96.1 %) with kappa value 0.86 (95 %CI:0.81-0.91). Inter-laboratory agreement was high (all ≥93.4 % and all kappa values ≥0.83). CONCLUSIONS The NeuMoDx HPV Assay self-sample workflow demonstrated high clinical accuracy for CIN2+/3+ and high reproducibility. The NeuMoDx HPV Assay self-sample workflow can be considered suitable for cervical cancer screening purposes.
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Affiliation(s)
- D A M Heideman
- Amsterdam UMC location Vrije Universiteit Amsterdam, Pathology, De Boelelaan 1117, Amsterdam, Netherlands; Cancer Center Amsterdam, Imaging and Biomarkers, Amsterdam, Netherlands.
| | - J Berkhof
- Amsterdam UMC location Vrije Universiteit Amsterdam, Data Sciences, De Boelelaan 1117, Amsterdam, Netherlands
| | - L Verhoef
- Amsterdam UMC location Vrije Universiteit Amsterdam, Pathology, De Boelelaan 1117, Amsterdam, Netherlands; Cancer Center Amsterdam, Imaging and Biomarkers, Amsterdam, Netherlands
| | - C Ouwerkerk
- Amsterdam UMC location Vrije Universiteit Amsterdam, Pathology, De Boelelaan 1117, Amsterdam, Netherlands; Cancer Center Amsterdam, Imaging and Biomarkers, Amsterdam, Netherlands
| | - P W Smit
- Molecular Diagnostics Unit, Medical Microbiology, Maasstad Ziekenhuis, Rotterdam, Netherlands
| | - A Oštrbenk Valenčak
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - J Mlakar
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - M Poljak
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - R D M Steenbergen
- Amsterdam UMC location Vrije Universiteit Amsterdam, Pathology, De Boelelaan 1117, Amsterdam, Netherlands; Cancer Center Amsterdam, Imaging and Biomarkers, Amsterdam, Netherlands
| | - M C G Bleeker
- Amsterdam UMC location Vrije Universiteit Amsterdam, Pathology, De Boelelaan 1117, Amsterdam, Netherlands; Cancer Center Amsterdam, Imaging and Biomarkers, Amsterdam, Netherlands
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Eyler Y, Sever M, Turgut A, Ocak NY, Onata A, Gürsoy O. External validation of the "deformity, edema, and pain in pronation" model for predicting wrist fractures. Am J Emerg Med 2024; 78:95-101. [PMID: 38244246 DOI: 10.1016/j.ajem.2024.01.011] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 01/09/2024] [Accepted: 01/09/2024] [Indexed: 01/22/2024] Open
Abstract
BACKGROUND The aim of this study is to externally validate the "Deformity, Edema, and Pain in Pronation" model, which determines the necessity for radiography in patients with wrist trauma. METHODS This prospective, cross-sectional study was performed in a tertiary emergency department (ED). All patients admitted to the ED with wrist trauma aged 18 years and older were included in the study. Patients who did not have acute and blunt wrist trauma, those who could not be fully examined due to various reasons, and patients who did not wish to participate were excluded. Each patient was examined by their responsible physician, and imaging tests were requested based on the indications. All radiographic images were evaluated by an orthopedic surgeon who was blinded to the clinical information. This evaluation was accepted as the standard reference for diagnosing fractures. RESULTS 391 patients were included in the study. 170 patients (43.5%) had at least one fracture. The sensitivity and specificity of the model formed in our study in predicting wrist fractures were 98.77% (95% CI: 95.61-99.85) and 27.60% (95% CI 21.82-34.00), respectively. The area under the receiver operating characteristic curve (AUC) on external validation of the model was 0.878 (p < 0.001; 95% CI: 0.844-0.913). With the practice of this rule, there would be a 16% decrease in X-ray imaging request, while only 0.5% patients would have missed inoperable fractures. CONCLUSION The "deformity, edema, and pain in pronation" model is a reliable and practical clinical decision rule for determining the necessity of radiography in wrist trauma.
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Affiliation(s)
- Yesim Eyler
- Department of Emergency, University of Health Sciences, Tepecik Training and Research Hospital, Izmir, Turkey.
| | - Mustafa Sever
- Department of Emergency, University of Health Sciences, Tepecik Training and Research Hospital, Izmir, Turkey
| | - Ali Turgut
- Department of Orthopedics and Traumatology, University of Health Sciences, Tepecik Training and Research Hospital, Izmir, Turkey
| | - Necmiye Yalcin Ocak
- Department of Emergency, University of Health Sciences, Tepecik Training and Research Hospital, Izmir, Turkey
| | - Ahmet Onata
- Emergency Department, University of Health Sciences, Tepecik Training and Research Hospital, Izmir, Turkey
| | - Olcay Gürsoy
- Department of Emergency, University of Health Sciences, Tepecik Training and Research Hospital, Izmir, Turkey
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Gao XZ, Cao YD, Gao YZ, Hu J, Ji T. Efficient detection of Streptococcus pyogenes based on recombinase polymerase amplification and lateral flow strip. Eur J Clin Microbiol Infect Dis 2024; 43:735-745. [PMID: 38361135 DOI: 10.1007/s10096-024-04780-4] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 02/07/2024] [Indexed: 02/17/2024]
Abstract
PURPOSE This article aims to establish a rapid visual method for the detection of Streptococcus pyogenes (GAS) based on recombinase polymerase amplification (RPA) and lateral flow strip (LFS). METHODS Utilizing speB of GAS as a template, RPA primers were designed, and basic RPA reactions were performed. To reduce the formation of primer dimers, base mismatch was introduced into primers. The probe was designed according to the forward primer, and the RPA-LFS system was established. According to the color results of the reaction system, the optimum reaction temperature and time were determined. Thirteen common clinical standard strains and 14 clinical samples of GAS were used to detect the selectivity of this method. The detection limit of this method was detected by using tenfold gradient dilution of GAS genome as template. One hundred fifty-six clinical samples were collected and compared with qPCR method and culture method. Kappa index and clinical application evaluation of the RPA-LFS were carried out. RESULTS The enhanced RPA-LFS method demonstrates the ability to complete the amplification process within 6 min at 33 °C. This method exhibits a high analytic sensitivity, with the lowest detection limit of 0.908 ng, and does not exhibit cross-reaction with other pathogenic bacteria. CONCLUSIONS The utilization of RPA and LFS allows for efficient and rapid testing of GAS, thereby serving as a valuable method for point-of-care testing.
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Affiliation(s)
- Xu-Zhu Gao
- Department of Central Laboratory, Lianyungang Hospital Affiliated to Kangda College of Nanjing Medical University, Lianyungang, China
- Department of Central Laboratory, Lianyungang Hospital Affiliated to Xuzhou Medical University, Lianyungang, China
- Institute of Clinical Oncology, The Second People's Hospital of Lianyungang City (Cancer Hospital of Lianyungang), Lianyungang, China
- The Second People's Hospital of Lianyungang Affiliated to Bengbu Medical College, Lianyungang, China
- Department of Medicine Laboratory, The Second People's Hospital of Lianyungang City (Cancer Hospital of Lianyungang), 161 Xingfu Road, Lianyungang, China
| | - Yu-Die Cao
- The Second People's Hospital of Lianyungang Affiliated to Bengbu Medical College, Lianyungang, China
| | - Yu-Zhi Gao
- Department of Central Laboratory, Lianyungang Hospital Affiliated to Kangda College of Nanjing Medical University, Lianyungang, China
- Department of Central Laboratory, Lianyungang Hospital Affiliated to Xuzhou Medical University, Lianyungang, China
- Institute of Clinical Oncology, The Second People's Hospital of Lianyungang City (Cancer Hospital of Lianyungang), Lianyungang, China
| | - Juan Hu
- Department of Medicine Laboratory, The Second People's Hospital of Lianyungang City (Cancer Hospital of Lianyungang), 161 Xingfu Road, Lianyungang, China.
| | - Tuo Ji
- Department of Central Laboratory, Lianyungang Hospital Affiliated to Kangda College of Nanjing Medical University, Lianyungang, China.
- Department of Central Laboratory, Lianyungang Hospital Affiliated to Xuzhou Medical University, Lianyungang, China.
- Institute of Clinical Oncology, The Second People's Hospital of Lianyungang City (Cancer Hospital of Lianyungang), Lianyungang, China.
- The Second People's Hospital of Lianyungang Affiliated to Bengbu Medical College, Lianyungang, China.
- Department of Medicine Laboratory, The Second People's Hospital of Lianyungang City (Cancer Hospital of Lianyungang), 161 Xingfu Road, Lianyungang, China.
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Helal M, Khaled R, Alfarghaly O, Mokhtar O, Elkorany A, Fahmy A, El Kassas H. Validation of artificial intelligence contrast mammography in diagnosis of breast cancer: Relationship to histopathological results. Eur J Radiol 2024; 173:111392. [PMID: 38428255 DOI: 10.1016/j.ejrad.2024.111392] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 01/12/2024] [Accepted: 02/21/2024] [Indexed: 03/03/2024]
Abstract
INTRODUCTION Contrast-enhanced mammography (CEM) is used for characterization of breast lesions with increased diagnostic accuracy compared to digital mammography (DM). Artificial intelligence (AI) approaches are emerging with accuracies equal to an average radiologist. However, most studies trained deep learning (DL) models on DM images and there is a paucity in literature for discovering the application of AI using CEM. OBJECTIVES To develop and test a DL model that classifies CEM images and produces corresponding highlights of lesions detected. METHODS Fully annotated 2006 images of 326 females available from the previously published Categorized Digital Database for Contrast Enhanced Mammography images (CDD-CESM) were used for training. We developed a DL multiview contrast mammography model (MVCM) for classification of CEM low energy and recombined images. An external test set of 288 images of 37 females not included in the training was used for validation. Correlation with histopathological results and follow-up was considered the standard reference. The study protocol was approved by the Institutional Review Board and patient informed consent was obtained. RESULTS Assessment was done on an external test set of 37 females (mean age, 51.31 years ± 11.07 [SD]) with AUC-ROC for AI performance 0.936; (95 % CI: 0.898, 0.973; p < 0.001) and the best cut off value for prediction of malignancy using AI score = 0.28. Findings were then correlated with histopathological results and follow up which revealed a sensitivity of 75 %, specificity 96.3 %, total accuracy of 90.1 %, positive predictive value (PPV) 87.1 %, and negative predictive value (NPV) 92 %, p-value (<0.001). Diagnostic indices of radiologists were sensitivity 88.9 %, specificity 92.6 %, total accuracy 91.7 %, PPV 80 %, and NPV 96.2 %, p-value (<0.001). CONCLUSION A deep learning multiview CEM model was developed and evaluated in a cohort of female participants and showed promising results in detecting breast cancer. This warrants further studies, external training, and validation.
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Affiliation(s)
- Maha Helal
- Radiology Department, National Cancer Institute, Cairo University, Cairo 11796, Egypt.
| | - Rana Khaled
- Radiology Department, National Cancer Institute, Cairo University, Cairo 11796, Egypt.
| | - Omar Alfarghaly
- Computer Science Department, Computers and Artificial Intelligence, Cairo University, Cairo 12613, Egypt.
| | - Omnia Mokhtar
- Radiology Department, National Cancer Institute, Cairo University, Cairo 11796, Egypt.
| | - Abeer Elkorany
- Computer Science Department, Computers and Artificial Intelligence, Cairo University, Cairo 12613, Egypt.
| | - Aly Fahmy
- Computer Science Department, Computers and Artificial Intelligence, Cairo University, Cairo 12613, Egypt.
| | - Hebatalla El Kassas
- Radiology Department, National Cancer Institute, Cairo University, Cairo 11796, Egypt.
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Patel KK, Toft N, Kovaliski J, Page B, Appuhamilage RMJJE, Taggart PL. Bayesian evaluation of temporal changes in sensitivity and specificity of three serological tests for multiple circulating strains of rabbit haemorrhagic disease virus. Prev Vet Med 2024; 225:106137. [PMID: 38359470 DOI: 10.1016/j.prevetmed.2024.106137] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 01/11/2024] [Accepted: 01/28/2024] [Indexed: 02/17/2024]
Abstract
Competition and indirect ELISAs are currently being used to monitor rabbit haemorrhagic disease viruses (RHDV1 and RHDV2) in rabbits worldwide. Temporal changes in the sensitivity (Se) and specificity (Sp) of RHDV1 competition-ELISA (cELISA1), RHDV2 competition-ELISA (cELISA2), and RHDV1 Immunoglobulin G (IgG1) ELISA, were investigated using Bayesian Latent Class models (BCLM) in the Australian wild rabbit population where both viruses circulate simultaneously and a long-term serological dataset exists. When cELISA1 was compared to IgG1 ELISA, the Se of cELISA1 improved while the Sp of IgG1 ELISA declined over the 2011-21. This corresponded with a decline in the true RHDV1 prevalence in 2018-21, suggesting that a large proportion of RHDV1 exposed rabbits survived the introduction and dominance of RHDV2 up to approximately 2017/2018, after which they died and were not replaced. The Se and Sp estimates for 2014-15 for both cELISA1 and IgG1 ELISA, and the true prevalence when analysing all three tests together were similar to those obtained from the analysis of cELISA1/IgG1 ELISA. The same was also true for the Se and Sp of cELISA2 and IgG1 ELISA estimates from 2018 onwards. This suggests that RHDV1 was the dominant infection type in 2014-15, but RHDV2 was the dominant infection type in 2018-21. Further, the increase in Se of cELISA2 and the low Sp of IgG1 ELISA in the cELISA2/IgG1 ELISA analysis, compared to the Se of cELISA2 and Sp of IgG1 ELISA when analysing all three tests together suggests that the underlying infection status was more influenced by RHDV2 and that the higher Se of IgG1 ELISA is due to cross-reaction of RHDV2 antibodies on IgG1 ELISA. The true prevalence data suggest that RHDV2 exposure peaked in 2017. Our findings show that test characteristics changed in response to the changing virus prevalences over time. IgG1 ELISA, currently having a high Se, should be used to monitor both viruses and will perform better than both cELISAs.
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Affiliation(s)
- Kandarp K Patel
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy, South Australia 5371, Australia; Biosecurity, Department of Primary Industries and Regions (PIRSA), Urrbrae, South Australia, 5064, Australia; Centre for Invasive Species Solutions, Bruce, Australian Capital Territory 2617, Australia.
| | - Nils Toft
- IQinAbox, Værløse, Denmark; Toft Analytics, Copenhagen, Denmark
| | - John Kovaliski
- Biosecurity, Department of Primary Industries and Regions (PIRSA), Urrbrae, South Australia, 5064, Australia; Centre for Invasive Species Solutions, Bruce, Australian Capital Territory 2617, Australia
| | - Bradley Page
- Biosecurity, Department of Primary Industries and Regions (PIRSA), Urrbrae, South Australia, 5064, Australia; Centre for Invasive Species Solutions, Bruce, Australian Capital Territory 2617, Australia
| | - Ridma M J Jayasinghe Ellakkala Appuhamilage
- Biosecurity, Department of Primary Industries and Regions (PIRSA), Urrbrae, South Australia, 5064, Australia; Centre for Invasive Species Solutions, Bruce, Australian Capital Territory 2617, Australia
| | - Patrick L Taggart
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy, South Australia 5371, Australia; Centre for Invasive Species Solutions, Bruce, Australian Capital Territory 2617, Australia; Vertebrate Pest Research Unit, Department of Primary Industries NSW, Queanbeyan, New South Wales 2620, Australia; School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, New South Wales 2052, Australia; Bush Heritage Australia, Melbourne, Victoria 3000, Australia
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Schoppmeier CM, Janson M, Höfer K, Graf I, Wicht MJ, Barbe AG. Use of the modified Schirmer test to measure salivary gland hypofunction/hyposalivation: Systematic review and meta-analysis. Eur J Oral Sci 2024; 132:e12977. [PMID: 38369878 DOI: 10.1111/eos.12977] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 01/19/2024] [Indexed: 02/20/2024]
Abstract
Although dry mouth is a relatively common condition, salivary flow is not routinely measured in dental clinical practice. Moreover, existing data regarding the use of the modified Schirmer test (MST) for the screening of dry mouth has not been summarized. This systematic review and meta-analysis, conducted in accordance with the PRISMA guidelines, aimed to determine whether the modified Schirmer test can be used to identify dry mouth. The databases of PubMed, Scopus, ScienceDirect, and CENTRAL (CRD42023393843) were systematically searched to retrieve articles published until 9th November 2023. Among the 343 original articles retrieved, six met the inclusion criteria. A total of 1150 patients, comprising 710 (61.7%) women and 440 (38.3%) men (mean age, 47.1 ± 7.3 years), were included. The meta-analysis revealed a weak correlation coefficient ofr ¯ $\bar{r}$ = 0.42 (95% Cl: 0.29-0.55) between MST and the unstimulated salivary flow rate. Therefore, while the MST might offer a simple and accessible alternative for initial screening in the future, especially in non-specialized settings, its variability in sensitivity and specificity, along with an actual lack of standardization, necessitates cautious interpretation. Further studies are necessary before recommending the test in clinical routine.
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Affiliation(s)
- Christoph Matthias Schoppmeier
- Faculty of Medicine and University Hospital Cologne, Polyclinic for Operative Dentistry and Periodontology, University of Cologne, Cologne, Germany
| | - Malin Janson
- Faculty of Medicine and University Hospital Cologne, Polyclinic of Prosthetic Dentistry, University of Cologne, Cologne, Germany
| | - Karolin Höfer
- Faculty of Medicine and University Hospital Cologne, Polyclinic for Operative Dentistry and Periodontology, University of Cologne, Cologne, Germany
| | - Isabelle Graf
- Faculty of Medicine and University Hospital Cologne, Department of Orthodontics, University of Cologne, Cologne, Germany
| | - Michael Jochen Wicht
- Faculty of Medicine and University Hospital Cologne, Polyclinic for Operative Dentistry and Periodontology, University of Cologne, Cologne, Germany
| | - Anna Greta Barbe
- Faculty of Medicine and University Hospital Cologne, Polyclinic for Operative Dentistry and Periodontology, University of Cologne, Cologne, Germany
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Gruenberg B, Crane G, Arnold DH, Harrison NJ, Levine M. Yield of abdominal radiographs in children with suspected intussusception; rate of pneumoperitoneum and other abdominal pathology. Am J Emerg Med 2024; 78:18-21. [PMID: 38181541 DOI: 10.1016/j.ajem.2023.12.030] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 11/28/2023] [Accepted: 12/14/2023] [Indexed: 01/07/2024] Open
Abstract
OBJECTIVES Ultrasound is the criterion standard imaging modality for the diagnosis of intussusception. However, to our knowledge the utility of abdominal radiographs to concurrently screen for pneumoperitoneum or other abdominal pathology that could have a similar presentation has not been studied. Our institutional protocol requires the performance of AP supine and left lateral decubitus views of the abdomen prior to ultrasound evaluation for intussusception, providing an opportunity to examine the yield of abdominal radiographs in this setting. Our primary objective was to determine the rate of pneumoperitoneum on screening abdominal radiographs in children undergoing evaluation for intussusception. Our secondary objective was to determine the rate that other clinically significant pathology is found on these screening abdominal radiographs. METHODS We performed a retrospective chart review of all patients under 6 years of age who had any imaging ordered in our large urban pediatric emergency department to evaluate for suspected intussusception during the calendar years 2018-2020. RESULTS 1115 patient encounters met our inclusion criteria. Among 1090 who had screening abdominal radiographs, 82 (8%) had findings concerning for intussusception. Of those not concerning for intussusception, 635 (58%) were read as normal, 263 (24%) showed moderate to large stool burden, 107 (10%) showed generalized bowel distention, and 22 (2%) showed abnormal gastric distention. Individually the remainder of all other findings compromised <1% of encounters and included radiopaque foreign body (8), intraabdominal calcification (4), pneumonia/effusion (3), pneumatosis intestinalis, abdominal mass (2), diaphragmatic hernia (1), rib fracture (1), appendicolith (1), feeding tube malposition (1), and bowel wall thickening (1). In one encounter the patient had a bowel perforation with pneumoperitoneum present secondary to ingestion of multiple magnets. CONCLUSIONS Our study indicates that radiograph-detected pneumoperitoneum is rare in children with suspected intussusception. Constipation is the most common abnormal finding on screening radiographs. Other findings occur in approximately 15% of total cases, some of which require further workup.
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Affiliation(s)
- Blake Gruenberg
- Vanderbilt University Medical Center, Department of Pediatrics, Division of Pediatric Emergency Medicine, 2200 Children's Way, Nashville, TN, 37232, USA.
| | - Gabriella Crane
- Vanderbilt University Medical Center, Department of Radiology, Division of Pediatric Radiology, 2200 Children's Way, Nashville, TN, 37232, USA
| | - Donald H Arnold
- Vanderbilt University Medical Center, Department of Pediatrics, Division of Pediatric Emergency Medicine, 2200 Children's Way, Nashville, TN, 37232, USA
| | - Noah J Harrison
- Vanderbilt University School of Medicine, 1161 21st Ave S # D3300, Nashville, TN, 37232, USA
| | - Marla Levine
- Vanderbilt University Medical Center, Department of Pediatrics, Division of Pediatric Emergency Medicine, 2200 Children's Way, Nashville, TN, 37232, USA
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Gray CF. CORR Insights®: Neutrophil Extracellular Trap-related Biomarkers Are Increased in the Synovial Fluid of Patients With Periprosthetic Joint Infections. Clin Orthop Relat Res 2024; 482:734-736. [PMID: 38231019 PMCID: PMC10936967 DOI: 10.1097/corr.0000000000002971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 12/07/2023] [Indexed: 01/18/2024]
Affiliation(s)
- Chancellor F Gray
- Orthopaedic Surgeon, Florida Orthopaedic Institute, Gainesville, FL, USA
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Ceylan AN, Toprak A, Doymaz MZ, Sümbül B. Comparative analysis of different loop types for urine culture collection: Implications for quantitative bacterial growth and culture results. Diagn Microbiol Infect Dis 2024; 108:116192. [PMID: 38330685 DOI: 10.1016/j.diagmicrobio.2024.116192] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 01/20/2024] [Accepted: 01/22/2024] [Indexed: 02/10/2024]
Abstract
We hypothesized that the loop material and size could affect the results of the culture when compared to the calibrated pipette. A total of 484 urine samples were included in the study, and each sample was plated by using different loop types and the calibrated pipette. The bacterial counts per milliliter were calculated and compared, with a focus on the important cutoff values of 10³ and 10⁴ CFU/ml for further identification. When considering the 10³ CFU/ml as cutoff value, 1 µl and 10 µl plastic loops gave the highest sensitivity (86.8 %), whereas the 10 µl metal loop had the lowest sensitivity (64.2 %). For the 10⁴ CFU/ml cutoff value, 1 µl plastic loop inoculation demonstrated the highest sensitivity (75.9 %), while the 10 µl metal loop provided the lowest sensitivity (26.5 %). These results suggest that the single use plastic loops are functional, sensitive, useful especially for critical sample.
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Affiliation(s)
- Ayse Nur Ceylan
- Department of Medical Microbiology, Basaksehir Cam ve Sakura City Hospital, Başakşehir, Istanbul, Turkey.
| | - Ali Toprak
- Biostatistics, Bezmialem Vakif University Medical Faculty, Istanbul, Turkey
| | - Mehmet Ziya Doymaz
- Medical Microbiology, Bezmialem Vakif University Medical Faculty, Istanbul, Turkey
| | - Bilge Sümbül
- Medical Microbiology, Bezmialem Vakif University Medical Faculty, Istanbul, Turkey
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50
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Raffone A, Raimondo D, Neola D, Travaglino A, Giorgi M, Lazzeri L, De Laurentiis F, Carravetta C, Zupi E, Seracchioli R, Casadio P, Guida M. Diagnostic accuracy of MRI in the differential diagnosis between uterine leiomyomas and sarcomas: A systematic review and meta-analysis. Int J Gynaecol Obstet 2024; 165:22-33. [PMID: 37732472 DOI: 10.1002/ijgo.15136] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 08/30/2023] [Accepted: 08/30/2023] [Indexed: 09/22/2023]
Abstract
BACKGROUND Differential diagnosis between uterine leiomyomas and sarcomas is challenging. Magnetic resonance imaging (MRI) represents the second-line diagnostic method after ultrasound for the assessment of uterine masses. OBJECTIVES To assess the accuracy of MRI in the differential diagnosis between uterine leiomyomas and sarcomas. SEARCH STRATEGY A systematic review and meta-analysis was performed searching five electronic databases from their inception to June 2023. SELECTION CRITERIA All peer-reviewed observational or randomized clinical trials that reported an unbiased postoperative histologic diagnosis of uterine leiomyoma or uterine sarcoma, which also comprehended a preoperative MRI evaluation of the uterine mass. DATA COLLECTION AND ANALYSIS Sensitivity, specificity, positive and negative likelihood ratios, diagnostic odds ratio, and area under the curve on summary receiver operating characteristic of MRI in differentiating uterine leiomyomas and sarcomas were calculated as individual and pooled estimates, with 95% confidence intervals (CI). RESULTS Eight studies with 2495 women (2253 with uterine leiomyomas and 179 with uterine sarcomas), were included. MRI showed pooled sensitivity of 0.90 (95% CI 0.84-0.94), specificity of 0.96 (95% CI 0.96-0.97), positive likelihood ratio of 13.55 (95% CI 6.20-29.61), negative likelihood ratio of 0.08 (95% CI 0.02-0.32), diagnostic odds ratio of 175.13 (95% CI 46.53-659.09), and area under the curve of 0.9759. CONCLUSIONS MRI has a high diagnostic accuracy in the differential diagnosis between uterine leiomyomas and sarcomas.
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Affiliation(s)
- Antonio Raffone
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
- Division of Gynecology and Human Reproduction Physiopathology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Diego Raimondo
- Division of Gynecology and Human Reproduction Physiopathology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Daniele Neola
- Gynecology and Obstetrics Unit, Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, University of Naples Federico II, Naples, Italy
| | - Antonio Travaglino
- Anatomic Pathology Unit, Department of Advanced Biomedical Sciences, School of Medicine, University of Naples Federico II, Naples, Italy
- Gynecopathology and Breast Pathology Unit, Department of Woman's Health Science, Agostino Gemelli University Polyclinic, Rome, Italy
| | - Matteo Giorgi
- Department of Molecular and Developmental Medicine, Obstetrics and Gynecological Clinic, University of Siena, Siena, Italy
| | - Lucia Lazzeri
- Department of Molecular and Developmental Medicine, Obstetrics and Gynecological Clinic, University of Siena, Siena, Italy
| | | | - Carlo Carravetta
- Obstetrics and Gynecology Unit, Salerno ASL, "Villa Malta" Hospital, Sarno, Italy
| | - Errico Zupi
- Department of Molecular and Developmental Medicine, Obstetrics and Gynecological Clinic, University of Siena, Siena, Italy
| | - Renato Seracchioli
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
- Division of Gynecology and Human Reproduction Physiopathology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Paolo Casadio
- Division of Gynecology and Human Reproduction Physiopathology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Maurizio Guida
- Gynecology and Obstetrics Unit, Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, University of Naples Federico II, Naples, Italy
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