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Sahni DS, Morrison J, Leung HY. Grid-based cognitive diagnostic prostatic biopsy without transrectal ultrasonography. BJU Int 2024. [PMID: 38740562 DOI: 10.1111/bju.16396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Affiliation(s)
- Dhruv Satya Sahni
- Department of Urology, NHS Greater Glasgow and Clyde, Queen Elizabeth University Hospital, Glasgow, UK
| | - John Morrison
- Department of Radiology, NHS Greater Glasgow and Clyde, Queen Elizabeth University Hospital, Glasgow, UK
| | - Hing Y Leung
- Department of Urology, NHS Greater Glasgow and Clyde, Queen Elizabeth University Hospital, Glasgow, UK
- School of Cancer Sciences, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK
- CRUK Scotland Institute Garscube Estate, Glasgow, UK
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2
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Fritz B, Halling AS, Cort IDP, Christensen MO, Rønnstad ATM, Olesen CM, Knudgaard MH, Zachariae C, Heegaard S, Thyssen JP, Bjarnsholt T. RNA-sequencing of paired tape-strips and skin biopsies in atopic dermatitis reveals key differences. Allergy 2024. [PMID: 38477552 DOI: 10.1111/all.16086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/30/2024] [Accepted: 02/18/2024] [Indexed: 03/14/2024]
Abstract
BACKGROUND Skin tape-strips and biopsies are widely used methods for investigating the skin in atopic dermatitis (AD). Biopsies are more commonly used but can cause scarring and pain, whereas tape-strips are noninvasive but sample less tissue. The study evaluated the performance of skin tape-strips and biopsies for studying AD. METHODS Whole-transcriptome RNA-sequencing was performed on paired tape-strips and biopsies collected from lesional and non-lesional skin from AD patients (n = 7) and non-AD controls (n = 5). RNA yield, mapping efficiency, and differentially expressed genes (DEGs) for the two methods (tape-strip/biopsy) and presence of AD (AD/non-AD) were compared. RESULTS Tape-strips demonstrated a lower RNA yield (22 vs. 4596 ng) and mapping efficiency to known genes (28% vs. 93%) than biopsies. Gene-expression profiles of paired tape-strips and biopsies demonstrated a medium correlation (R2 = 0.431). Tape-strips and biopsies demonstrated systematic differences in measured expression levels of 6483 genes across both AD and non-AD samples. Tape-strips preferentially detected many itch (CCL3/CCL4/OSM) and immune-response (CXCL8/IL4/IL5/IL22) genes as well as markers of epidermal dendritic cells (CD1a/CD207), while certain cytokines (IL18/IL37), skin-barrier genes (KRT2/FLG2), and dermal fibroblasts markers (COL1A/COL3A) were preferentially detected by biopsies. Tape-strips identified more DEGs between AD and non-AD (3157 DEGs) then biopsies (44 DEGs). Tape-strips also detected higher levels of bacterial mRNA than biopsies. CONCLUSIONS This study concludes that tape-strips and biopsies each demonstrate respective advantages for measuring gene-expression changes in AD. Thus, the specific skin layers and genes of interest should be considered before selecting either method.
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Affiliation(s)
- Blaine Fritz
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen N, Denmark
| | | | - Isabel Díaz-Pinés Cort
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen N, Denmark
| | | | | | | | | | - Claus Zachariae
- Department of Allergy, Skin, and Venereology, Gentofte Hospital, Gentofte, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen N, Denmark
| | - Steffen Heegaard
- Department of Clinical Medicine, University of Copenhagen, Copenhagen N, Denmark
| | - Jacob P Thyssen
- Department of Dermatology, Bispebjerg Hospital, Copenhagen NV, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen N, Denmark
| | - Thomas Bjarnsholt
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen N, Denmark
- Department of Clinical Microbiology, Rigshospitalet, Copenhagen N, Denmark
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3
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Akman-Karakaş A, Khan R, Khachemoune A. Modified Chalazion Clamp: Novel Applications in Dermatologic Surgery. J Clin Aesthet Dermatol 2024; 17:18-20. [PMID: 38495544 PMCID: PMC10941851] [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] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Biopsies and excisions of mucosal surfaces can be challenging due to poor visualization and bleeding control. Surgeons have utilized chalazion clamps to overcome these challenges. However, its original design incorporates a locking mechanism which restricts its use to more proximal mucosal surfaces, does not allow for flexible exertional pressure control by the operator, and it is only available in one size. We designed a modified chalazion clamp without a locking mechanism and in two different sizes and ring diameters to overcome these challenges. In this report, we demonstrate the enhanced utility and effectiveness of the modified chalazion clamp in dermatological procedures through different cases.
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Affiliation(s)
- Ayşe Akman-Karakaş
- Dr. Akman-Karakas is with Akdeniz University's School of Medicine Department of Dermatology and Venereology in Antalya, Turkey
| | - Raza Khan
- Dr. Khan is with the University of Oklahoma Health Sciences Center College of Medicine in Oklahoma City, Oklahoma
| | - Amor Khachemoune
- Dr. Khachemoune is with the Department of Dermatology at SUNY Downstate in Brooklyn, New York. Additionally, Dr. Khachemoune is with the Department of Dermatology at Veterans Affairs New York Harbor Healthcare System in Brooklyn, New York
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4
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Plekhova NG, Chernenko IN, Korolev DV, Kozlovskaya EP, Stepanyugina AK, Shevchenko OV, Dmitrenok PS, Shumatov VB. Evaluation of Collagenase Activity from Crab Hepatopancreas in Different Model Systems. Bull Exp Biol Med 2024; 176:457-460. [PMID: 38491258 DOI: 10.1007/s10517-024-06046-7] [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: 06/23/2023] [Indexed: 03/18/2024]
Abstract
The effect of Kamchatka crab hepatopancreas containing three collagenolytic isoenzymes Collagenase KK and proteinases of Streptomyces lavendulae on metabolic activity and cell death were carried out on in vitro models. It was shown that changes in the protein structure under the influence of Collagenase KK occurred earlier than under the effect of bacterial proteinases. At the same time, activity of Collagenase KK was significantly higher than that of bacterial proteinases (p<0.01). Both preparations had a pronounced time- and dose-dependent effects on metabolic activity of cells. Collagenase KK had low cytotoxic effect, and cells mainly died by apoptosis. Thus, hepatopancreas collagenase has a high activity and proapoptotic effect on cells and can be used in low concentrations for enzymatic disaggregation of tissues.
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Affiliation(s)
- N G Plekhova
- Pacific State Medical University, Ministry of Health of the Russian Federation, Vladivostok, Russia.
| | - I N Chernenko
- Pacific State Medical University, Ministry of Health of the Russian Federation, Vladivostok, Russia
| | - D V Korolev
- Pacific State Medical University, Ministry of Health of the Russian Federation, Vladivostok, Russia
| | - E P Kozlovskaya
- G. B. Elyakov Pacific Institute of Bioorganic Chemistry, Far East Branch of the Russian Academy of Sciences, Vladivostok, Russia
| | - A K Stepanyugina
- Pacific State Medical University, Ministry of Health of the Russian Federation, Vladivostok, Russia
| | - O V Shevchenko
- Pacific State Medical University, Ministry of Health of the Russian Federation, Vladivostok, Russia
| | - P S Dmitrenok
- G. B. Elyakov Pacific Institute of Bioorganic Chemistry, Far East Branch of the Russian Academy of Sciences, Vladivostok, Russia
| | - V B Shumatov
- Pacific State Medical University, Ministry of Health of the Russian Federation, Vladivostok, Russia
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Cucchi A, Bettini S, Fiorino A, Maglio M, Marchiori G, Corinaldesi G, Sartori M. Histological and histomorphometric analysis of bone tissue using customized titanium meshes with or without resorbable membranes: A randomized clinical trial. Clin Oral Implants Res 2024; 35:114-130. [PMID: 37966057 DOI: 10.1111/clr.14202] [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: 03/28/2023] [Revised: 10/29/2023] [Accepted: 11/01/2023] [Indexed: 11/16/2023]
Abstract
OBJECTIVES To date, no clinical studies have investigated the effect of using resorbable collagen membrane in conjunction with customized titanium mesh to promote bone formation in guided bone regeneration. Therefore, a non-inferiority analysis (one-sided 95% CI approach) was designed to compare the augmented bone gained using meshes with and without collagen membranes, through histological and histomorphometric investigations. MATERIALS AND METHODS Thirty patients undergoing bone augmentation procedures at both maxillary and mandible sites were randomly treated with customized titanium meshes alone (M-, n = 15) or covered with resorbable membrane (M+, n = 15), in both cases filled with autogenous bone and xenograft. After 6 months of healing, bone tissue biopsies were taken from the augmented region. The bone tissue (B.Ar), grafting material (G.Ar), and non-mineralized tissue (NMT.Ar) areas were quantified through histomorphometric analysis, as were the osteoid area (O.Ar) and its width. RESULTS Collagen membrane did not appear to significantly influence the investigated parameters: B.Ar, G.Ar, NMT.Ar, and O.Ar were similar between Group M- (34.3%, 11.5%, 54.1%, 1.95 μm2 , respectively) and Group M+ (35.3%, 14.6%, 50.2%, and 1.75 μm2 , respectively). Considering the overall population, significantly higher rates of newly formed bone were obtained in mandibular sites, while non-mineralized and dense connective tissue rates were higher in the maxilla (p < .05). CONCLUSIONS The application of collagen membrane over titanium mesh did not lead to significant results. Bone formation appeared significantly different in the maxilla compared with the mandible. Additional studies are required to further investigate the issues observed.
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Affiliation(s)
| | - Sofia Bettini
- Implant Center for Edentulism and Jawbone Atrophies, Maxillofacial Surgery and Odontostomatology Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy
| | - Antonino Fiorino
- Department of Neuroscience and Reproductive and Odontostomatological Sciences, Federico II University of Naples, Naples, Italy
| | - Melania Maglio
- Surgical Sciences and Technologies, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Gregorio Marchiori
- Surgical Sciences and Technologies, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Giuseppe Corinaldesi
- Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Bologna, Italy
| | - Maria Sartori
- Surgical Sciences and Technologies, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
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Del Duca E, He H, Liu Y, Pagan AD, David E, Cheng J, Carroll B, Renert-Yuval Y, Bar J, Estrada YD, Maari C, Proulx ESC, Krueger JG, Bissonnette R, Guttman-Yassky E. Intrapatient comparison of atopic dermatitis skin transcriptome shows differences between tape-strips and biopsies. Allergy 2024; 79:80-92. [PMID: 37577841 DOI: 10.1111/all.15845] [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: 03/20/2023] [Revised: 05/26/2023] [Accepted: 06/24/2023] [Indexed: 08/15/2023]
Abstract
BACKGROUND Our knowledge of etiopathogenesis of atopic dermatitis (AD) is largely derived from skin biopsies, which are associated with pain, scarring and infection. In contrast, tape-stripping is a minimally invasive, nonscarring technique to collect skin samples. METHODS To construct a global AD skin transcriptomic profile comparing tape-strips to whole-skin biopsies, we performed RNA-seq on tape-strips and biopsies taken from the lesional skin of 20 moderate-to-severe AD patients and the skin of 20 controls. Differentially expressed genes (DEGs) were defined by fold-change (FCH) ≥2.0 and false discovery rate <0.05. RESULTS We detected 4104 (2513 Up; 1591 Down) and 1273 (546 Up; 727 Down) DEGs in AD versus controls, in tape-strips and biopsies, respectively. Although both techniques captured dysregulation of key immune genes, tape-strips showed higher FCHs for innate immunity (IL-1B, IL-8), dendritic cell (ITGAX/CD11C, FCER1A), Th2 (IL-13, CCL17, TNFRSF4/OX40), and Th17 (CCL20, CXCL1) products, while biopsies showed higher upregulation of Th22 associated genes (IL-22, S100As) and dermal cytokines (IFN-γ, CCL26). Itch-related genes (IL-31, TRPV3) were preferentially captured by tape-strips. Epidermal barrier abnormalities were detected in both techniques, with terminal differentiation defects (FLG2, PSORS1C2) better represented by tape-strips and epidermal hyperplasia changes (KRT16, MKI67) better detected by biopsies. CONCLUSIONS Tape-strips and biopsies capture overlapping but distinct features of the AD molecular signature, suggesting their respective utility for monitoring specific AD-related immune, itch, and barrier abnormalities in clinical trials and longitudinal studies.
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Affiliation(s)
- Ester Del Duca
- Department of Dermatology, and Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
- Department of Dermatology, University of Magna Graecia, Catanzaro, Italy
| | - Helen He
- Department of Dermatology, and Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Ying Liu
- Department of Dermatology, and Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Angel D Pagan
- Department of Dermatology, and Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Eden David
- Department of Dermatology, and Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Julia Cheng
- Department of Dermatology, and Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Britta Carroll
- Department of Dermatology, and Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Yael Renert-Yuval
- Department of Dermatology, and Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
- Laboratory for Investigative Dermatology, The Rockefeller University, New York City, New York, USA
| | - Jonathan Bar
- Department of Dermatology, and Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Yeriel D Estrada
- Department of Dermatology, and Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | | | | | - James G Krueger
- Laboratory for Investigative Dermatology, The Rockefeller University, New York City, New York, USA
| | | | - Emma Guttman-Yassky
- Department of Dermatology, and Laboratory of Inflammatory Skin Diseases, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
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7
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Zullo A, Chiovelli F, Esposito E, Hassan C, Casini B. Can Gastric Juice Analysis with EndoFaster ® Reduce the Environmental Impact of Upper Endoscopy? Healthcare (Basel) 2023; 11:3186. [PMID: 38132076 PMCID: PMC10742638 DOI: 10.3390/healthcare11243186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/12/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023] Open
Abstract
Gastrointestinal (GI) endoscopy services are in third place as major contributors to CO2 emissions among healthcare facilities, especially due to their massive waste production. One of the measures suggested to reduce this environmental impact is a reduction in histological examinations performed on biopsy specimens taken during endoscopy. A reliable candidate to reduce the rate of biopsies and, consequently, the impact of CO2 emissions could be EndoFaster®, an innovative medical device that allows one to suspect or rule out both H. pylori infection and precancerous lesions on the gastric mucosa by analyzing a small amount of gastric juice aspirated during endoscopy in real time. In the present study, we investigated the ability of EndoFaster® to reduce the environmental impact of upper endoscopy, comparing the CO2 production of standard biopsy sampling as suggested in guidelines and biopsies guided by real-time EndoFaster® results during endoscopy. By estimating an overall 90% rate of biopsies according to standard guidelines and a reduction of 50% of gastric biopsies based on EndoFaster® results, we calculated a 44% overall reduction in CO2 emissions, demonstrating that by using this tool, it is possible to distinctly reduce the contribution of upper endoscopy to global warming.
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Affiliation(s)
- Angelo Zullo
- Gastroenterology Unit, “Nuovo Regina Margherita” Hospital, 00153 Rome, Italy;
| | - Federica Chiovelli
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, 56126 Pisa, Italy; (F.C.); (E.E.)
| | - Enrica Esposito
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, 56126 Pisa, Italy; (F.C.); (E.E.)
| | - Cesare Hassan
- Gastroenterology and Endoscopy Unit, Department of Biomedical Sciences, IRCCS Humanitas Research Hospital, 20089 Milan, Italy;
| | - Beatrice Casini
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, 56126 Pisa, Italy; (F.C.); (E.E.)
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Álvarez-Hilario LG, Salmerón-Bárcenas EG, Ávila-López PA, Hernández-Montes G, Aréchaga-Ocampo E, Herrera-Goepfert R, Albores-Saavedra J, Manzano-Robleda MDC, Saldívar-Cerón HI, Martínez-Frías SP, Thompson-Bonilla MDR, Vargas M, Hernández-Rivas R. Circulating miRNAs as Noninvasive Biomarkers for PDAC Diagnosis and Prognosis in Mexico. Int J Mol Sci 2023; 24:15193. [PMID: 37894871 PMCID: PMC10607652 DOI: 10.3390/ijms242015193] [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: 08/09/2023] [Revised: 09/20/2023] [Accepted: 10/08/2023] [Indexed: 10/29/2023] Open
Abstract
Among malignant neoplasms, pancreatic ductal adenocarcinoma (PDAC) has one of the highest fatality rates due to its late detection. Therefore, it is essential to discover a noninvasive, early, specific, and sensitive diagnostic method. MicroRNAs (miRNAs) are attractive biomarkers because they are accessible, highly specific, and sensitive. It is crucial to find miRNAs that could be used as possible biomarkers because PDAC is the eighth most common cause of cancer death in Mexico. With the help of microRNA microarrays, differentially expressed miRNAs (DEmiRNAs) were found in PDAC tissues. The presence of these DEmiRNAs in the plasma of Mexican patients with PDAC was determined using RT-qPCR. Receiver operating characteristic curve analysis was performed to determine the diagnostic capacity of these DEmiRNAs. Gene Expression Omnibus datasets (GEO) were employed to verify our results. The Prisma V8 statistical analysis program was used. Four DEmiRNAs in plasma from PDAC patients and microarray tissues were found. Serum samples from patients with PDAC were used to validate their overexpression in GEO databases. We discovered a new panel of the two miRNAs miR-222-3p and miR-221-3p that could be used to diagnose PDAC, and when miR-221-3p and miR-222-3p were overexpressed, survival rates decreased. Therefore, miR-222-3p and miR-221-3p might be employed as noninvasive indicators for the diagnosis and survival of PDAC in Mexican patients.
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Affiliation(s)
- Lissuly Guadalupe Álvarez-Hilario
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de Mexico C.P. 07360, Mexico; (L.G.Á.-H.); (E.G.S.-B.); (P.A.Á.-L.); (H.I.S.-C.); (M.V.)
| | - Eric Genaro Salmerón-Bárcenas
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de Mexico C.P. 07360, Mexico; (L.G.Á.-H.); (E.G.S.-B.); (P.A.Á.-L.); (H.I.S.-C.); (M.V.)
| | - Pedro Antonio Ávila-López
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de Mexico C.P. 07360, Mexico; (L.G.Á.-H.); (E.G.S.-B.); (P.A.Á.-L.); (H.I.S.-C.); (M.V.)
| | - Georgina Hernández-Montes
- Coordinación de la Investigación Científica, Red de Apoyo a la Investigación, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de Mexico C.P. 14080, Mexico;
| | - Elena Aréchaga-Ocampo
- Departamento de Ciencias Naturales, Universidad Autónoma Metropolitana, Unidad Cuajimalpa, Ciudad de Mexico C.P. 05300, Mexico;
| | - Roberto Herrera-Goepfert
- Departamento de Patología, Instituto Nacional de Cancerología, Ciudad de Mexico C.P. 14080, Mexico;
| | - Jorge Albores-Saavedra
- Departamento de Patología, Medica Sur Clínica y Fundación, Ciudad de Mexico C.P. 14050, Mexico;
| | | | - Héctor Iván Saldívar-Cerón
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de Mexico C.P. 07360, Mexico; (L.G.Á.-H.); (E.G.S.-B.); (P.A.Á.-L.); (H.I.S.-C.); (M.V.)
| | - Sandra Paola Martínez-Frías
- Departamento de Infectología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán (INCMNSZ), Avenida Vasco de Quiroga No.15, Colonia Belisario Domínguez Sección XVI, Ciudad de Mexico C.P. 14080, Mexico
| | | | - Miguel Vargas
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de Mexico C.P. 07360, Mexico; (L.G.Á.-H.); (E.G.S.-B.); (P.A.Á.-L.); (H.I.S.-C.); (M.V.)
| | - Rosaura Hernández-Rivas
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de Mexico C.P. 07360, Mexico; (L.G.Á.-H.); (E.G.S.-B.); (P.A.Á.-L.); (H.I.S.-C.); (M.V.)
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Renaud LA, Bordeleau X, Kellar NM, Pigeon G, Michaud R, Morin Y, Lair S, Therien A, Lesage V. Estimating pregnancy rate from blubber progesterone levels of a blindly biopsied beluga population poses methodological, analytical and statistical challenges. Conserv Physiol 2023; 11:coad075. [PMID: 37771677 PMCID: PMC10533324 DOI: 10.1093/conphys/coad075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 07/13/2023] [Accepted: 09/06/2023] [Indexed: 09/30/2023]
Abstract
Beluga (Delphinapterus leucas) from the St. Lawrence Estuary, Canada, have been declining since the early 2000s, suggesting recruitment issues as a result of low fecundity, abnormal abortion rates or poor calf or juvenile survival. Pregnancy is difficult to observe in cetaceans, making the ground truthing of pregnancy estimates in wild individuals challenging. Blubber progesterone concentrations were contrasted among 62 SLE beluga with a known reproductive state (i.e. pregnant, resting, parturient and lactating females), that were found dead in 1997 to 2019. The suitability of a threshold obtained from decaying carcasses to assess reproductive state and pregnancy rate of freshly-dead or free-ranging and blindly-sampled beluga was examined using three statistical approaches and two data sets (135 freshly harvested carcasses in Nunavik, and 65 biopsy-sampled SLE beluga). Progesterone concentrations in decaying carcasses were considerably higher in known-pregnant (mean ± sd: 365 ± 244 ng g-1 of tissue) than resting (3.1 ± 4.5 ng g-1 of tissue) or lactating (38.4 ± 100 ng g-1 of tissue) females. An approach based on statistical mixtures of distributions and a logistic regression were compared to the commonly-used, fixed threshold approach (here, 100 ng g-1) for discriminating pregnant from non-pregnant females. The error rate for classifying individuals of known reproductive status was the lowest for the fixed threshold and logistic regression approaches, but the mixture approach required limited a priori knowledge for clustering individuals of unknown pregnancy status. Mismatches in assignations occurred at lipid content < 10% of sample weight. Our results emphasize the importance of reporting lipid contents and progesterone concentrations in both units (ng g-1 of tissue and ng g-1 of lipid) when sample mass is low. By highlighting ways to circumvent potential biases in field sampling associated with capturability of different segments of a population, this study also enhances the usefulness of the technique for estimating pregnancy rate of free-ranging population.
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Affiliation(s)
- L -A Renaud
- Department of Fisheries and Oceans Canada, Maurice Lamontagne Institute, P.O. Box 1000, 850 Route de la Mer, Mont-Joli, Québec, G5H 3Z4, Canada
| | - X Bordeleau
- Department of Fisheries and Oceans Canada, Maurice Lamontagne Institute, P.O. Box 1000, 850 Route de la Mer, Mont-Joli, Québec, G5H 3Z4, Canada
| | - N M Kellar
- Southwest Fisheries Science Center, National Marine Fisheries Service, P.O. Box 271, La Jolla, California 92038, USA
| | - G Pigeon
- Institut de recherche sur les forêts, Université du Québec en Abitibi-Témiscamingue, Rouyn-Noranda, Québec, J9X 5E4, Canada
| | - R Michaud
- Groupe de recherche et d’éducation sur les mammifères marins (GREMM), 108 de la Cale-Sèche, Tadoussac, Québec, G0T 2A0, Canada
| | - Y Morin
- Department of Fisheries and Oceans Canada, Maurice Lamontagne Institute, P.O. Box 1000, 850 Route de la Mer, Mont-Joli, Québec, G5H 3Z4, Canada
| | - S Lair
- Faculté de médecine vétérinaire, Université de Montréal, P.O. Box 5000, 3200 Rue Sicotte, St-Hyacinthe, Québec, J2S 7C6, Canada
| | - A Therien
- Department of Fisheries and Oceans Canada, Maurice Lamontagne Institute, P.O. Box 1000, 850 Route de la Mer, Mont-Joli, Québec, G5H 3Z4, Canada
| | - V Lesage
- Department of Fisheries and Oceans Canada, Maurice Lamontagne Institute, P.O. Box 1000, 850 Route de la Mer, Mont-Joli, Québec, G5H 3Z4, Canada
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10
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Sbarigia C, Ritieni C, Annibale B, Carabotti M. Common Diagnostic Challenges and Pitfalls in Segmental Colitis Associated with Diverticulosis (SCAD). J Clin Med 2023; 12:6084. [PMID: 37763023 PMCID: PMC10532061 DOI: 10.3390/jcm12186084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 09/18/2023] [Accepted: 09/19/2023] [Indexed: 09/29/2023] Open
Abstract
Segmental colitis associated with diverticulosis (SCAD) is characterized by inflammation involving the sigmoid inter-diverticular mucosa, sparing the proximal colon and rectum. Due to the heterogeneity of clinical manifestations and endoscopic and histological findings, SCAD diagnosis might be challenging in clinical practice. This narrative review aimed to report the SCAD diagnostic criteria adopted in different studies, highlighting the current challenges and main pitfalls in its diagnosis. We analysed fourteen studies, mainly prospective observational studies. Haematochezia and rectal bleeding were the main complaints leading to diagnosis, followed by diarrhoea. An accurate endoscopic description was performed in 86% of studies, while a standardised biopsy sampling protocol (sigma, proximal colon and rectum) was scarcely adopted, being complete only in 28.5% of studies. The evaluation of concomitant drugs potentially inducing colitis was carried out in only 57% of studies. Great heterogeneity in sigmoid endoscopic (edema, erythema, erosions, ulcers, mucosal friability) and histological findings (chronic and/or acute inflammatory infiltrate) was observed. We showed that SCAD diagnosis is often based on not fully adequate macroscopic colonic description and scant biopsy protocol sampling. An accurate clinical and endoscopic evaluation, with an adequate sampling biopsy protocol, with attention to differential diagnosis, seemed to be crucial for a prompt SCAD diagnosis.
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Affiliation(s)
| | | | | | - Marilia Carabotti
- Department of Medical-Surgical Sciences and Translational Medicine, Sapienza University, 00189 Rome, Italy; (C.S.); (C.R.); (B.A.)
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11
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van der Wijngaart H, Jagga S, Dekker H, de Goeij R, Piersma SR, Pham TV, Knol JC, Zonderhuis BM, Holland HJ, Jiménez CR, Verheul HMW, Vanapalli S, Labots M. Advancing wide implementation of precision oncology: A liquid nitrogen-free snap freezer preserves molecular profiles of biological samples. Cancer Med 2023; 12:10979-10989. [PMID: 36916528 DOI: 10.1002/cam4.5781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 02/18/2023] [Accepted: 02/24/2023] [Indexed: 03/16/2023] Open
Abstract
PURPOSE In precision oncology, tumor molecular profiles guide selection of therapy. Standardized snap freezing of tissue biospecimens is necessary to ensure reproducible, high-quality samples that preserve tumor biology for adequate molecular profiling. Quenching in liquid nitrogen (LN2 ) is the golden standard method, but LN2 has several limitations. We developed a LN2 -independent snap freezer with adjustable cold sink temperature. To benchmark this device against the golden standard, we compared molecular profiles of biospecimens. METHODS Cancer cell lines and core needle normal tissue biopsies from five patients' liver resection specimens were used to compare mass spectrometry (MS)-based global phosphoproteomic and RNA sequencing profiles and RNA integrity obtained by both freezing methods. RESULTS Unsupervised cluster analysis of phosphoproteomic and transcriptomic profiles of snap freezer versus LN2 -frozen K562 samples and liver biopsies showed no separation based on freezing method (with Pearson's r 0.96 (range 0.92-0.98) and >0.99 for K562 profiles, respectively), while samples with +2 h bench-time formed a separate cluster. RNA integrity was also similar for both snap freezing methods. Molecular profiles of liver biopsies were clearly identified per individual patient regardless of the applied freezing method. Two to 25 s freezing time variations did not induce profiling differences in HCT116 samples. CONCLUSION The novel snap freezer preserves high-quality biospecimen and allows identification of individual patients' molecular profiles, while overcoming important limitations of the use of LN2 . This snap freezer may provide a useful tool in clinical cancer research and practice, enabling a wider implementation of (multi-)omics analyses for precision oncology.
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Affiliation(s)
- Hanneke van der Wijngaart
- Department of Medical Oncology, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Sahil Jagga
- Applied Thermal Sciences, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | - Henk Dekker
- Department of Medical Oncology, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,Cancer Center Amsterdam, Imaging and Biomarkers, Amsterdam, The Netherlands
| | - Richard de Goeij
- Department of Medical Oncology, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,Cancer Center Amsterdam, Imaging and Biomarkers, Amsterdam, The Netherlands
| | - Sander R Piersma
- Department of Medical Oncology, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,Cancer Center Amsterdam, Imaging and Biomarkers, Amsterdam, The Netherlands
| | - Thang V Pham
- Department of Medical Oncology, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,Cancer Center Amsterdam, Imaging and Biomarkers, Amsterdam, The Netherlands
| | - Jaco C Knol
- Department of Medical Oncology, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,Cancer Center Amsterdam, Imaging and Biomarkers, Amsterdam, The Netherlands
| | - Babs M Zonderhuis
- Department of Surgery, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Harry J Holland
- Applied Thermal Sciences, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | - Connie R Jiménez
- Department of Medical Oncology, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,Cancer Center Amsterdam, Imaging and Biomarkers, Amsterdam, The Netherlands
| | - Henk M W Verheul
- Department of Medical Oncology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Srinivas Vanapalli
- Applied Thermal Sciences, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | - Mariette Labots
- Department of Medical Oncology, Amsterdam UMC Location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,Cancer Center Amsterdam, Imaging and Biomarkers, Amsterdam, The Netherlands
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12
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Leung T, Cavallero S, Mondot S, Parnot C, Yssaad H, Becherirat S, Guitard N, Thery H, Schernberg A, Breitwiller H, Chargari C, Francois S. Correlation Between Serum and Urine Biomarkers and the Intensity of Acute Radiation Cystitis in Patients Treated With Radiation Therapy for Localized Prostate Cancer: Protocol for the Radiotoxicity Bladder Biomarkers (RABBIO) Study. JMIR Res Protoc 2023; 12:e38362. [PMID: 36626198 PMCID: PMC9874987 DOI: 10.2196/38362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 09/16/2022] [Accepted: 09/20/2022] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Despite improvements in radiation techniques, pelvic radiotherapy is responsible for acute and delayed bladder adverse events, defined as radiation cystitis. The initial symptoms of bladder injury secondary to pelvic irradiation are likely to occur during treatment or within 3 months of radiotherapy in approximately 50% of irradiated patients, and have a significant impact on their quality of life. The pathophysiology of radiation cystitis is not well understood, particularly because of the risk of complications associated with access to bladder tissue after irradiation, which limits our ability to study this process and develop treatments. OBJECTIVE It is an original study combining digital data collection to monitor patients' symptoms and biological markers during irradiation. The main objective of our study is to evaluate the correlation of biological biomarkers with the intensity of acute radiation cystitis and the quality of life of patients, assessed with the digital telemonitoring platform Cureety. METHODS Patients with intermediate-risk localized prostate cancer who are eligible for localized radiotherapy will be included. Inflammatory biomarkers will be analyzed in urine and blood samples before the start of radiotherapy and at weeks 4, 12, and 48 of irradiation, through quantitative methods such as a multiplex Luminex assay, flow cytometry, and enzyme-linked immunosorbent assay. We will also characterize the patients' gut and urine microbiota composition using 16S ribosomal RNA sequencing technology. Between sample collection visits, patients will complete various questionnaires related to radiation cystitis symptoms (using the International Prostate Symptom Score), adverse events, and quality of life (using the Functional Assessment of Cancer Therapy-Prostate questionnaire), using the Cureety digital remote monitoring platform. Upon receipt of the questionnaires, an algorithm will process the information and classify patients in accordance with the severity of symptoms and adverse events reported on the basis of Common Terminology Criteria for Adverse Events and International Prostate Symptom Score standards. This will allow us to correlate levels of urinary, blood, and fecal biomarkers with the severity of acute radiation cystitis symptoms and patient-reported quality of life. RESULTS The study started in March 2022. We estimate a recruitment period of approximately 18 months, and the final results are expected in 2024. CONCLUSIONS This prospective study is the first to explore the overexpression of inflammatory proteins in fluid biopsies from patients with symptoms of acute radiation cystitis. In addition, the 1-year follow-up after treatment will allow us to predict which patients are at risk of late radiation cystitis and to refer them for radioprotective treatment. The results of this study will allow us to develop strategies to limit radiation damage to the bladder and improve the quality of life of patients. TRIAL REGISTRATION ClinicalTrials.gov NCT05246774; https://clinicaltrials.gov/ct2/show/NCT05246774?term=NCT05246774. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) DERR1-10.2196/38362.
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Affiliation(s)
| | - Sophie Cavallero
- Institut de Recherche Biomédicale des Armées, Bretigny sur Orge, France
| | - Stanislas Mondot
- Paris-Saclay university, Institut National de Recherche pour l'Agriculture, Jouy-en-Josas, France
| | | | | | | | - Nathalie Guitard
- Institut de Recherche Biomédicale des Armées, Bretigny sur Orge, France
| | - Hélène Thery
- Institut de Recherche Biomédicale des Armées, Bretigny sur Orge, France
| | | | | | - Cyrus Chargari
- Institut de Recherche Biomédicale des Armées, Bretigny sur Orge, France
| | - Sabine Francois
- Institut de Recherche Biomédicale des Armées, Bretigny sur Orge, France
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Iannibelli E, Gibertini S, Cheli M, Blasevich F, Cavaliere A, Riolo G, Ruggieri A, Maggi L. VCP-related myopathy: a case series and a review of literature. Acta Myol 2023; 42:2-13. [PMID: 37091525 PMCID: PMC10115396 DOI: 10.36185/2532-1900-244] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 02/22/2023] [Indexed: 04/25/2023]
Abstract
The valosin-containing protein (VCP), a widely expressed protein, controls the ubiquitin-proteasome system, endolysosomal sorting, and autophagy to maintain cellular proteostasis. Frontotemporal dementia (FTD), inclusion body myopathy, and Paget's disease of the bone (PDB) are all caused by dominant missense mutations in the VCP gene, which interfere with these mechanisms and cause a multisystem proteinopathy. We describe phenotypic and genetic findings of five patients with four different mutations in VCP gene (NM_007126): c.278G > A (p.R93H), c.463C > T (p.R155C), c.410C > T (p.P137L), c.464G > A (p.R155H), c.410C > T (p.P137L). We analysed the patient' biopsies, all characterized by a muscular phenotype, and we executed immunofluorescence staining to evaluate the presence of proteins: p62, VCP, desmin, myotilin, TDP-43. Eventually we performed a brief literature review to compare our cases with those already reported. Our report strongly suggest that VCP gene mutations can be related with a predominant skeletal muscle phenotype without any central nervous system involvement, as occasionally reported in the literature. Particularly, our patient with R93H shows only myopathic involvement while this mutation has been described once associated only to Hereditary Spastic Paraplegia. Further study will be necessary to understand such a broad and different clinical spectrum.
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Affiliation(s)
- Eliana Iannibelli
- Department of Neuroimmunology and Neuromuscular Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Sara Gibertini
- Department of Neuroimmunology and Neuromuscular Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Marta Cheli
- Department of Neuroimmunology and Neuromuscular Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Flavia Blasevich
- Department of Neuroimmunology and Neuromuscular Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Andrea Cavaliere
- Department of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Giorgia Riolo
- Department of Neuroimmunology and Neuromuscular Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Alessandra Ruggieri
- Department of Neuroimmunology and Neuromuscular Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
- Correspondence Alessandra Ruggieri Department of Neuroimmunology and Neuromuscular Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy E-mail:
| | - Lorenzo Maggi
- Department of Neuroimmunology and Neuromuscular Diseases, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
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14
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Zhang L, Zhang J, Tang M, Lei XY, Li LC. MRI-Based Radiomics Nomogram for Predicting Prostate Cancer with Gray-Zone Prostate-Specific Antigen Levels to Reduce Unnecessary Biopsies. Diagnostics (Basel) 2022; 12. [PMID: 36553012 DOI: 10.3390/diagnostics12123005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/25/2022] [Accepted: 11/28/2022] [Indexed: 12/04/2022] Open
Abstract
OBJECTIVE The aim of this study was to establish a predictive nomogram for predicting prostate cancer (PCa) in patients with gray-zone prostate-specific antigen (PSA) levels (4-10.0 ng/mL) based on radiomics and other traditional clinical parameters. METHODS In all, 274 patients with gray-zone PSA levels were included in this retrospective study. They were randomly divided into training and validation sets (n = 191 and 83, respectively). Data on the clinical risk factors related to PCa with gray-zone PSA levels (such as Prostate Imaging Reporting and Data System, version 2.1 [PI-RADS V2.1] category, age, prostate volume, and serum PSA level) were collected for all patients. Lesion volumes of interest (VOI) from T2-weighted imaging (T2WI) and apparent diffusion coefficient (ADC) imaging were annotated by two radiologists. The radiomics model, clinical model, and combined prediction model, which was presented on a nomogram by incorporating the radiomics signature and clinical and radiological risk factors for PCa, were developed using logistic regression. The area under the receiver operator characteristic (AUC-ROC) and decision, calibration curve were used to compare the three models for the diagnosis of PCa with gray-zone PSA levels. RESULTS The predictive nomogram (AUC: 0.953) incorporating the radiomics score and PI-RADS V2.1 category, age, and the radiomics model (AUC: 0.941) afforded much higher diagnostic efficacy than the clinical model (AUC: 0.866). The addition of the rad score could improve the discriminatory performance of the clinical model. The decision curve analysis indicated that the radiomics or combined model could be more beneficial compared to the clinical model for the prediction of PCa. The nomogram showed good agreement for detecting PCa with gray-zone PSA levels between prediction and histopathologic confirmation. CONCLUSION The nomogram, which combined the radiomics score and PI-RADS V2.1 category and age, is an effective and non-invasive method for predicting PCa. Furthermore, as well as good calibration and is clinically useful, which could reduce unnecessary prostate biopsies in patients having PCa with gray-zone PSA levels.
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15
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Gustafson LW, Hammer A, Bennetsen MH, Kristensen C, Majeed H, Petersen LK, Andersen B, Bor P. Cervical intraepithelial neoplasia in women with transformation zone type 3: cervical biopsy versus large loop excision. BJOG 2022; 129:2132-2140. [PMID: 35488417 PMCID: PMC9796102 DOI: 10.1111/1471-0528.17200] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 03/02/2022] [Accepted: 03/08/2022] [Indexed: 12/30/2022]
Abstract
OBJECTIVE To compare the proportion of cervical intraepithelial neoplasia grade 2 or higher (CIN2+) in cervical biopsies with that in large loop excision of the transformation zone (LLETZ) specimens in women aged ≥45 years with transformation zone type 3 (TZ3). DESIGN Multicentre cross-sectional study. SETTING Three colposcopy clinics in the Central Denmark Region. POPULATION Women aged ≥45 years referred to colposcopy as a result of a positive human papillomavirus (HPV) test and/or abnormal cytology and with TZ3 at colposcopy. METHODS Women had multiple biopsies taken and an LLETZ was performed. MAIN OUTCOME MEASURES Histologically confirmed CIN2+ in biopsies compared with that in LLETZ specimens. RESULTS Of 166 eligible women at colposcopy, 102 women with paired data from biopsies and LLETZ specimens were included for final analysis. The median age was 67.7 years (IQR 62.6-70.4 years), and most were postmenopausal (94.1%) and had undergone HPV-based screening (81.3%). The CIN2+ detection rate was significantly higher in LLETZ specimens than in biopsies (32.4% vs 14.7%, difference 17.7%, 95% CI 6.3-29.0%), resulting in more than half of CIN2+ cases being missed in biopsies (54.5%, 95% CI 36.4-71.9%). The overall agreement between biopsies and LLETZ was 82.4% (95% CI 73.6-89.2%). CONCLUSIONS CIN2+ detection is underestimated in women aged ≥45 years with TZ3 if detection relies on the results of biopsies alone. To reduce the risk of underdiagnosis and overtreatment, future studies should explore the use of new biomarkers for risk stratification to improve discrimination between women at increased risk of CIN2+ who need to undergo LLETZ and women who may undergo follow-up.
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Affiliation(s)
- Line Winther Gustafson
- Department of Public Health Programmes, Randers Regional HospitalUniversity Research Clinic for Cancer ScreeningRandersDenmark,Department of Clinical MedicineAarhus UniversityHerningDenmark
| | - Anne Hammer
- Department of Clinical MedicineAarhus UniversityHerningDenmark,Department of Obstetrics and GynaecologyGødstrup HospitalHerningDenmark
| | | | | | - Huda Majeed
- Department of Obstetrics and GynaecologyViborg Regional HospitalViborgDenmark
| | - Lone Kjeld Petersen
- Department of Obstetrics and GynaecologyOdense University HospitalOdenseDenmark,Open Patient data Explorative Network, Department of Clinical ResearchUniversity of Southern DenmarkOdenseDenmark
| | - Berit Andersen
- Department of Public Health Programmes, Randers Regional HospitalUniversity Research Clinic for Cancer ScreeningRandersDenmark,Department of Clinical MedicineAarhus UniversityHerningDenmark
| | - Pinar Bor
- Department of Clinical MedicineAarhus UniversityHerningDenmark,Department of Obstetrics and GynaecologyRanders Regional HospitalRandersDenmark
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16
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Veale DJ, Firestein GS, Wechalekar MD, Najm A. Editorial: Synovial tissue biopsy research. Front Med (Lausanne) 2022; 9:1004029. [PMID: 36267626 PMCID: PMC9577487 DOI: 10.3389/fmed.2022.1004029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 09/09/2022] [Indexed: 12/02/2022] Open
Affiliation(s)
- Douglas J. Veale
- Department of Rheumatology, University College Dublin, Dublin, Ireland,Centre for Arthritis and Rheumatic Diseases, Saint Vincent's University Hospital, Dublin, Ireland,*Correspondence: Douglas J. Veale
| | - Gary S. Firestein
- Department of Rheumatology, University of California, San Diego, San Diego, CA, United States
| | - Mihir D. Wechalekar
- Department of Rheumatology, Flinders University, Flinders Medical Centre, Adelaide, SA, Australia
| | - Aurélie Najm
- Department of Rheumatology, University of Glasgow, Glasgow, United Kingdom
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17
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Leroy K, Vilas-Boas V, Gijbels E, Vanderborght B, Devisscher L, Cogliati B, Van Den Bossche B, Colle I, Vinken M. Expression of connexins and pannexins in diseased human liver. EXCLI J 2022; 21:1111-1129. [PMID: 36381643 PMCID: PMC9650699 DOI: 10.17179/excli2022-5163] [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] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 08/17/2022] [Indexed: 01/24/2023]
Abstract
Connexin proteins can form hexameric hemichannels and gap junctions that mediate paracrine and direct intercellular communication, respectively. Gap junction activity is crucial for the maintenance of hepatic homeostasis, while connexin hemichannels become particularly active in liver disease, such as hepatitis, fibrosis, cholestasis or even hepatocellular carcinoma. Channels consisting of connexin-like proteins named pannexins have been directly linked to liver inflammation and cell death. The goal of the present study was to characterize the expression and subcellular localization of connexins and pannexins in liver of patients suffering from various chronic and neoplastic liver diseases. Specifically, real-time quantitative reverse transcription polymerase chain reaction, immunoblotting and immunohistochemistry analyses were performed on human liver biopsies. It was found that pannexin1 and pannexin2 gene expression are correlated to a certain degree, as is pannexin1 protein expression with connexin32 and connexin43 protein expression. Furthermore, this study is the first to detect pannexin3 in human patient liver biopsies via both immunoblot and immunohistochemistry.
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Affiliation(s)
- Kaat Leroy
- Department of Pharmaceutical and Pharmacological Sciences, Entity of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090 Brussels, Belgium
| | - Vânia Vilas-Boas
- Department of Pharmaceutical and Pharmacological Sciences, Entity of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090 Brussels, Belgium
| | - Eva Gijbels
- Department of Pharmaceutical and Pharmacological Sciences, Entity of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090 Brussels, Belgium
| | - Bart Vanderborght
- Department of Basic and Applied Medical Sciences, Gut-Liver Immunopharmacology Unit, Universiteit Gent, Corneel Heymanslaan 10, 9000 Gent, Belgium
| | - Lindsey Devisscher
- Department of Basic and Applied Medical Sciences, Gut-Liver Immunopharmacology Unit, Universiteit Gent, Corneel Heymanslaan 10, 9000 Gent, Belgium
| | - Bruno Cogliati
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Dr. Orlando Marques de Paiva 87, Cidade Universitária, 05508-270, São Paulo, Brazil
| | - Bert Van Den Bossche
- Department of Hepatobiliary and Pancreatic Surgery, Algemeen Stedelijk Ziekenhuis Campus Aalst, Merestraat 80, 9300 Aalst, Belgium
| | - Isabelle Colle
- Department of Hepatology and Gastroenterology, Algemeen Stedelijk Ziekenhuis Campus Aalst, Merestraat 80, 9300 Aalst, Belgium
| | - Mathieu Vinken
- Department of Pharmaceutical and Pharmacological Sciences, Entity of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090 Brussels, Belgium,*To whom correspondence should be addressed: Mathieu Vinken, Department of Pharmaceutical and Pharmacological Sciences, Entity of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090 Brussels, Belgium; Tel.: +3224774587, E-mail:
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18
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Bar-Yoseph H, Blatt A, Gerassy S, Pressman S, Mousa A, Sabo E, Waterman M, Ungar B, Ben-Horin S, Chowers Y. Differential Serum-intestinal Dynamics of Infliximab and Adalimumab in Inflammatory Bowel Disease Patients. J Crohns Colitis 2022; 16:884-892. [PMID: 34849649 DOI: 10.1093/ecco-jcc/jjab208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS Therapeutic drug monitoring is used to guide anti-tumour necrosis factor [TNF] therapy. However, the associations between serum drug levels [SDL], TNF-bound, and free anti-TNF in the target tissue are incompletely defined. We aimed to assess the interactions between these parameters in inflammatory bowel disease [IBD] patients. METHODS: ENZYME-LINKED IMMUNOSORBENT assays [ELISA assays] were used to detect free drug and TNF-drug complexes in intestinal tissues. Concurrent SDL, anti-drug antibodies [ADA], pharmacotherapy, clinical response, endoscopic appearance, and histological severity were determined. Comparisons between anti-TNFs and paired inflamed/non-inflamed tissue were performed. Variables were correlated and potential interactions detected using multivariate analysis. RESULTS A total of 95 biopsies taken from 49 anti-TNF treated IBD patients [26 receiving infliximab and 23 adalimumab] were studied. Free drug levels were higher in inflamed compared with non-inflamed paired specimens. Tissue free-drug and TNF-drug complexes levels were higher in adalimumab-treated patients. In adalimumab-treated patients, SDL were correlated with free drug, but not TNF-drug complex levels, in both inflamed and non-inflamed segments. In infliximab-treated patients, higher SDL were associated with the presence of tissue free drug in both inflamed and non-inflamed segments, whereas TNF-drug complexes were mostly detected in non-inflamed but not in inflamed tissue. In the presence of ADA, neither free drug nor TNF-infliximab complexes were measured in the tissue. Tissue levels did not correlate well with clinical, endoscopic, or histological scores. CONCLUSIONS SDL correlated with tissue free drug levels; however, different dynamics were observed for TNF-drug complex levels. Infliximab and adalimumab tissue drug dynamics differ. Better understanding of these interactions may allow future therapeutic optimisation.
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Affiliation(s)
- Haggai Bar-Yoseph
- Department of Gastroenterology, Rambam Health Care Campus, Haifa, Israel.,Bruce Rappaport Faculty of Medicine, Technion Israel Institute of Technology, Haifa, Israel
| | - Alexandra Blatt
- Department of Gastroenterology, Rambam Health Care Campus, Haifa, Israel
| | - Shiran Gerassy
- Department of Gastroenterology, Rambam Health Care Campus, Haifa, Israel
| | - Sigal Pressman
- Department of Gastroenterology, Rambam Health Care Campus, Haifa, Israel
| | - Amjad Mousa
- Department of Internal Medicine H, Rambam Health Care Campus, Haifa, Israel
| | - Edmond Sabo
- Bruce Rappaport Faculty of Medicine, Technion Israel Institute of Technology, Haifa, Israel.,Department of Pathology, Carmel Medical Center, Haifa, Israel
| | - Matti Waterman
- Department of Gastroenterology, Rambam Health Care Campus, Haifa, Israel.,Bruce Rappaport Faculty of Medicine, Technion Israel Institute of Technology, Haifa, Israel
| | - Bella Ungar
- Department of Gastroenterology, Chaim Sheba Medical Center, Ramat-Gan, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Shomron Ben-Horin
- Department of Gastroenterology, Chaim Sheba Medical Center, Ramat-Gan, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yehuda Chowers
- Department of Gastroenterology, Rambam Health Care Campus, Haifa, Israel.,Bruce Rappaport Faculty of Medicine, Technion Israel Institute of Technology, Haifa, Israel.,Clinical Research Institute, Rambam Health Care Campus, Haifa, Israel
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19
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Simman R, Caudil J. Marjolin Ulcers of the Scalp Post Trauma and of the Neck Post Radiation, Diagnosis, and Reconstruction. Eplasty 2022; 22:ic10. [PMID: 35903428 PMCID: PMC9280062] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
What are potential causes of Marjolin ulcer and how do they present?How are MU diagnosed?What are differential diagnoses for MU, and what can help differentiate them?What are the appropriate treatments for MU?
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Affiliation(s)
- Richard Simman
- Jobst Vascular Institute, ProMedica Health Network, Toledo, OH
- University of Toledo, College of Medicine and Life Sciences, Toledo, OH
| | - Jennifer Caudil
- University of Toledo, College of Medicine and Life Sciences, Toledo, OH
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20
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Deschuyter M, Leger DY, Verboom A, Chaunavel A, Maftah A, Petit JM. ST3GAL2 knock-down decreases tumoral character of colorectal cancer cells in vitro and in vivo. Am J Cancer Res 2022; 12:280-302. [PMID: 35141018 PMCID: PMC8822282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 07/23/2021] [Indexed: 06/14/2023] Open
Abstract
Tumor cells have a modified glycosylation profile that promotes their evolution and/or their maintenance in the tumor. Sialylation is a type of glycosylation that is often altered in cancers. RNA-Seq database analysis revealed that the sialyltransferase gene ST3GAL2 is significantly overexpressed at all stages of colorectal cancer (CRC). ST3GAL2 sialylates both glycoproteins and glycolipids. The aim of this work was to investigate the involvement of ST3GAL2 in CRC. Using the HT29 tumor cell line derived from a stage II of CRC, we decreased the expression of ST3GAL2 by specific shRNA, and then characterized these cells by performing functional tests. We found that ST3GAL2 knock down (KD) significantly decreases tumor cell proliferation, cell migration and invasiveness properties in vitro. The cell cycle of these cells is affected with a change in cell cycle distribution and an increase of cell apoptosis. The effect of ST3GAL2 KD was then studied in vivo, following xenografts into nude mice, in which the tumor progression was significantly reduced. This work demonstrates that ST3GAL2 is a major player in the behavior of colorectal tumor cells, by modifying the sialylation state of glycoproteins and glycolipids which remain to be specifically identified.
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Affiliation(s)
- Marlène Deschuyter
- PEIRENE Laboratory, EA 7500, Glycosylation and Cell Differentiation, Faculty of Sciences and Technology, University of LimogesLimoges F-87060, France
| | - David Yannick Leger
- PEIRENE Laboratory, EA 7500, Faculty of Pharmacy, University of LimogesLimoges 87025, France
| | - Anne Verboom
- PEIRENE Laboratory, EA 7500, Glycosylation and Cell Differentiation, Faculty of Sciences and Technology, University of LimogesLimoges F-87060, France
| | - Alain Chaunavel
- Department of Pathology, Limoges University HospitalLimoges 87042, France
| | - Abderrahman Maftah
- PEIRENE Laboratory, EA 7500, Glycosylation and Cell Differentiation, Faculty of Sciences and Technology, University of LimogesLimoges F-87060, France
| | - Jean-Michel Petit
- PEIRENE Laboratory, EA 7500, Glycosylation and Cell Differentiation, Faculty of Sciences and Technology, University of LimogesLimoges F-87060, France
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21
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Kafle G, Garg B, Mehta N, Sharma R, Singh U, Kandasamy D, Das P, Chowdhury B. Diagnostic yield of image-guided biopsy in patients with suspected infectious spondylodiscitis : a prospective study from a tuberculosis-endemic country. Bone Joint J 2022; 104-B:120-126. [PMID: 34969288 DOI: 10.1302/0301-620x.104b1.bjj-2021-0848.r2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS The aims of this study were to determine the diagnostic yield of image-guided biopsy in providing a final diagnosis in patients with suspected infectious spondylodiscitis, to report the diagnostic accuracy of various microbiological tests and histological examinations in these patients, and to report the epidemiology of infectious spondylodiscitis from a country where tuberculosis (TB) is endemic, including the incidence of drug-resistant TB. METHODS A total of 284 patients with clinically and radiologically suspected infectious spondylodiscitis were prospectively recruited into the study. Image-guided biopsy of the vertebral lesion was performed and specimens were sent for various microbiological tests and histological examinations. The final diagnosis was determined using a composite reference standard based on clinical, radiological, serological, microbiological, and histological findings. The overall diagnostic yield of the biopsy, and that for each test, was calculated in light of the final diagnosis. RESULTS The final diagnosis was tuberculous spondylodiscitis in 250 patients (88%) and pyogenic spondylodiscitis in 22 (7.8%). Six (2.1%) had a noninfectious condition-mimicking infectious spondylodiscitis, and six (2.1%) had no definite diagnosis and improved without specific treatment. The diagnosis was made by image-guided biopsy in 152 patients (56%) with infectious spondylodiscitis. Biopsy was contributory in identifying 132/250 patients (53%) with tuberculous spondylodiscitis, and 20/22 patients (91%) with pyogenic spondylodiscitis. Histological examination was the most sensitive diagnostic modality, followed by Xpert MTB/RIF assay. CONCLUSION Image-guided biopsy has a reasonably high diagnostic yield in patients with suspected infectious spondylodiscitis. A combination of histological examination, Xpert MTB/RIF assay, bacterial culture, and sensitivity provides high diagnostic accuracy in a country in which TB is endemic. Cite this article: Bone Joint J 2022;104-B(1):120-126.
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Affiliation(s)
- Gokul Kafle
- Department of Orthopaedics, All India Institute of Medical Sciences, New Delhi, India
| | - Bhavuk Garg
- Department of Orthopaedics, All India Institute of Medical Sciences, New Delhi, India
| | - Nishank Mehta
- Department of Orthopaedics, All India Institute of Medical Sciences, New Delhi, India
| | - Raju Sharma
- Department of Radiodiagnosis, All India Institute of Medical Sciences, New Delhi, India
| | - Urvashi Singh
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | | | - Prasenjit Das
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Buddhadev Chowdhury
- Department of Orthopaedics, All India Institute of Medical Sciences, New Delhi, India
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22
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Koivurova OP, Koskela R, Blomster T, Ala-Rämi A, Lumme H, Kettunen O, Hukkanen J, Karttunen TJ, Mäkinen M, Ronkainen J, Syrjänen K. Serological Biomarker Panel in Diagnosis of Atrophic Gastritis and Helicobacter pylori Infection in Gastroscopy Referral Patients: Clinical Validation of the New-Generation GastroPanel ® Test. Anticancer Res 2021; 41:5527-5537. [PMID: 34732423 DOI: 10.21873/anticanres.15366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 10/07/2021] [Accepted: 10/21/2021] [Indexed: 01/11/2023]
Abstract
BACKGROUND/AIM Prompted by the increasing demand of non-invasive diagnostic tools for screening of gastric cancer (GC) risk conditions, i.e., atrophic gastritis (AG) and Helicobacter pylori (Hp) infection, the GastroPanel® test (GP: biomarker panel of PGI, PGII, G-17, Hp IgG ELISA) that was developed in the early 2000's, was recently updated to a new-generation (unified GP) test version. This clinical validation study evaluated the diagnostic accuracy of the new-generation GP test in detection of AG and Hp among gastroscopy referral patients in a University Clinic. PATIENTS AND METHODS Altogether, 522 patients were enrolled among the patients referred for gastroscopy at the Gastro Center, Oulu University Hospital (OUH). All patients underwent gastroscopy with biopsies classified using the Updated Sydney System (USS), and blood sampling for GP testing. RESULTS Biopsy-confirmed AG was found in 10.2% (53/511) of the patients. The overall agreement between the GP and the USS classification was 92.4% (95%CI=90.0-94.6%), with the weighted kappa (κw) of 0.861 (95%CI=0.834-0.883). In ROC analysis using moderate/severe AG of the corpus (AGC2+) as the endpoint, AUC=0.952 (95%CI=0.891-1.000) and AUC=0.998 (95%CI=0.996-1.000) for PGI and PGI/PGII, respectively. Hp IgG antibody ELISA detected biopsy-confirmed Hp-infection with AUC=0.993 (95%CI=0.987-0.999). CONCLUSION The new generation GastroPanel® is a precise test for non-invasive diagnosis of atrophic gastritis and Hp-infection in dyspeptic patients referred for diagnostic gastroscopy.
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Affiliation(s)
| | - Ritva Koskela
- Research Unit of Internal Medicine, Medical Research Center Oulu, Oulu University Hospital, and University of Oulu, Oulu, Finland
| | - Timo Blomster
- Research Unit of Internal Medicine, Medical Research Center Oulu, Oulu University Hospital, and University of Oulu, Oulu, Finland
| | - Antti Ala-Rämi
- Research Unit of Internal Medicine, Medical Research Center Oulu, Oulu University Hospital, and University of Oulu, Oulu, Finland
| | - Henri Lumme
- Research Unit of Internal Medicine, Medical Research Center Oulu, Oulu University Hospital, and University of Oulu, Oulu, Finland
| | - Olli Kettunen
- Research Unit of Internal Medicine, Medical Research Center Oulu, Oulu University Hospital, and University of Oulu, Oulu, Finland
| | - Janne Hukkanen
- Research Unit of Internal Medicine, Medical Research Center Oulu, Oulu University Hospital, and University of Oulu, Oulu, Finland
| | - Tuomo J Karttunen
- Cancer and Translational Medicine Research Unit, University of Oulu, Oulu, Finland
| | - Markus Mäkinen
- Cancer and Translational Medicine Research Unit, University of Oulu, Oulu, Finland.,Department of Pathology, Oulu University Hospital, Oulu, Finland
| | - Jukka Ronkainen
- Center for Life Course Health Research, University of Oulu, Oulu, Finland.,Primary Health Care Center, Tornio, Finland
| | - Kari Syrjänen
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil; .,SMW Consultants, Ltd., Kaarina, Finland
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23
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Maamatou W, Jabloun A, Daib A, Jarray L, Ben Abdallah R, Hellal Y, Trabelsi F, Gharbi Y, Kaabar N. Place of Laparoscopy in Peritoneal Tuberculosis. J Laparoendosc Adv Surg Tech A 2021; 31:1480-1484. [PMID: 34748433 DOI: 10.1089/lap.2021.0374] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Introduction: Peritoneal tuberculosis (PT) is a rare form of extrapulmonary tuberculosis in children. The diagnosis is difficult because of its clinical polymorphism. Laparoscopy is the gold standard to make the diagnosis by exploring and performing peritoneal biopsies. Our aim was to show the place of laparoscopy in the diagnosis of PT, to compare the anatomopathological results of peritoneal biopsies with a macroscopic appearance to quick start antituberculosis treatment. Case Reports: We reported 4 patients with PT, 3 girls and 1 boy. The middle age was 9 years old. The revealing symptomatology was ascites in all cases. Radiological exploration was not contributing. Laparoscopy was performed for all patients. The exploration revealed an agglutination of the intestinal loops with the presence of whitish micronodules scattered over the entire abdominal cavity. Peritoneal biopsies were done in all cases. Histological examination confirmed the diagnosis of PT in all patients and antituberculosis treatment was introduced. There was a good clinical evolution with a follow-up of 30 months. Conclusion: PT is a public health problem due to its clinical and biological polymorphism. Laparoscopy with peritoneal biopsies remains the essential means for the diagnosis of this pathology in children.
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Affiliation(s)
- Wafa Maamatou
- Department of Pediatric Surgery, Habib Thameur Hospital, Tunis, Tunisia
| | - Asma Jabloun
- Department of Surgery "A", Faculty of Medicine of Tunis, University of Tunis El Manar, Tunisia
| | - Aida Daib
- Department of Surgery "A", Faculty of Medicine of Tunis, University of Tunis El Manar, Tunisia
| | - Leila Jarray
- Department of Pediatric Surgery, Habib Thameur Hospital, Tunis, Tunisia
| | | | - Youssef Hellal
- Department of Pediatric Surgery, Habib Thameur Hospital, Tunis, Tunisia
| | - Fatma Trabelsi
- Department of Pediatric Surgery, Habib Thameur Hospital, Tunis, Tunisia
| | - Youssef Gharbi
- Department of Pediatric Surgery, Habib Thameur Hospital, Tunis, Tunisia
| | - Nejib Kaabar
- Department of Pediatric Surgery, Habib Thameur Hospital, Tunis, Tunisia.,Department of Surgery "A", Faculty of Medicine of Tunis, University of Tunis El Manar, Tunisia
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24
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Perez-Valera M, Martinez-Canton M, Gallego-Selles A, Galván-Alvarez V, Gelabert-Rebato M, Morales-Alamo D, Santana A, Martin-Rodriguez S, Ponce-Gonzalez JG, Larsen S, Losa-Reyna J, Perez-Suarez I, Dorado C, Curtelin D, Gonzalez-Henriquez JJ, Boushel R, Hallen J, de Pablos Velasco P, Freixinet-Gilart J, Holmberg HC, Helge JW, Martin-Rincon M, Calbet JAL. Angiotensin-Converting Enzyme 2 (SARS-CoV-2 receptor) expression in human skeletal muscle. Scand J Med Sci Sports 2021; 31:2249-2258. [PMID: 34551157 PMCID: PMC8662278 DOI: 10.1111/sms.14061] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 09/01/2021] [Accepted: 09/21/2021] [Indexed: 12/15/2022]
Abstract
The study aimed to determine the levels of skeletal muscle angiotensin-converting enzyme 2 (ACE2, the SARS-CoV-2 receptor) protein expression in men and women and assess whether ACE2 expression in skeletal muscle is associated with cardiorespiratory fitness and adiposity. The level of ACE2 in vastus lateralis muscle biopsies collected in previous studies from 170 men (age: 19-65 years, weight: 56-137 kg, BMI: 23-44) and 69 women (age: 18-55 years, weight: 41-126 kg, BMI: 22-39) was analyzed in duplicate by western blot. VO2 max was determined by ergospirometry and body composition by DXA. ACE2 protein expression was 1.8-fold higher in women than men (p = 0.001, n = 239). This sex difference disappeared after accounting for the percentage of body fat (fat %), VO2 max per kg of legs lean mass (VO2 max-LLM) and age (p = 0.47). Multiple regression analysis showed that the fat % (β = 0.47) is the main predictor of the variability in ACE2 protein expression in skeletal muscle, explaining 5.2% of the variance. VO2 max-LLM had also predictive value (β = 0.09). There was a significant fat % by VO2 max-LLM interaction, such that for subjects with low fat %, VO2 max-LLM was positively associated with ACE2 expression while as fat % increased the slope of the positive association between VO2 max-LLM and ACE2 was reduced. In conclusion, women express higher amounts of ACE2 in their skeletal muscles than men. This sexual dimorphism is mainly explained by sex differences in fat % and cardiorespiratory fitness. The percentage of body fat is the main predictor of the variability in ACE2 protein expression in human skeletal muscle.
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Affiliation(s)
- Mario Perez-Valera
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Research Institute of Biomedical and Health Sciences (IUIBS), University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Miriam Martinez-Canton
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Research Institute of Biomedical and Health Sciences (IUIBS), University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Angel Gallego-Selles
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Research Institute of Biomedical and Health Sciences (IUIBS), University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Victor Galván-Alvarez
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Research Institute of Biomedical and Health Sciences (IUIBS), University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Miriam Gelabert-Rebato
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Research Institute of Biomedical and Health Sciences (IUIBS), University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - David Morales-Alamo
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Research Institute of Biomedical and Health Sciences (IUIBS), University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Alfredo Santana
- Research Institute of Biomedical and Health Sciences (IUIBS), University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Complejo Hospitalario Universitario Insular-Materno Infantil de Las Palmas de Gran Canaria, Clinical Genetics Unit, Las Palmas de Gran Canaria, Spain
| | - Saul Martin-Rodriguez
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Research Institute of Biomedical and Health Sciences (IUIBS), University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | | | - Steen Larsen
- Center of Healthy Ageing, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark.,Clinical Research Centre, Medical University of Bialystok, Bialystok, Poland
| | - Jose Losa-Reyna
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Ismael Perez-Suarez
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Research Institute of Biomedical and Health Sciences (IUIBS), University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Cecilia Dorado
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Research Institute of Biomedical and Health Sciences (IUIBS), University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - David Curtelin
- Research Institute of Biomedical and Health Sciences (IUIBS), University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Juan Jose Gonzalez-Henriquez
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Research Institute of Biomedical and Health Sciences (IUIBS), University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Department of Mathematics, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Robert Boushel
- School of Kinesiology, Faculty of Education, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Jostein Hallen
- Department of Physical Performance, The Norwegian School of Sport Sciences, Oslo, Norway
| | - Pedro de Pablos Velasco
- Research Institute of Biomedical and Health Sciences (IUIBS), University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Department of Endocrinology and Nutrition, Hospital Universitario de Gran Canaria Doctor Negrín, Las Palmas de Gran Canaria, Spain
| | - Jorge Freixinet-Gilart
- Department of Thoracic Surgery, Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas de Gran Canaria, Spain
| | - Hans-Christer Holmberg
- Department of Physiology and Pharmacology, Biomedicum C5, Karolinska Institute, Stockholm, Sweden.,Department of Health Sciences, Luleå University of Technology, Luleå, Sweden
| | - Jorn W Helge
- Center of Healthy Ageing, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Marcos Martin-Rincon
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Research Institute of Biomedical and Health Sciences (IUIBS), University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Jose A L Calbet
- Department of Physical Education, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,Research Institute of Biomedical and Health Sciences (IUIBS), University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.,School of Kinesiology, Faculty of Education, The University of British Columbia, Vancouver, British Columbia, Canada.,Department of Physical Performance, The Norwegian School of Sport Sciences, Oslo, Norway
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25
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Kayira A, Chisale MRO, Sinyiza FW, Chimbatata CS, Kaseka PU, Kamudumuli PS, Wu J, Mbakaya BC. Histopathological profile of breast cancer at a tertiary hospital in Malawi: A retrospective cross-sectional study. Afr J Reprod Health 2021; 25:76-80. [PMID: 34077113 DOI: 10.29063/ajrh2021/v25i1.9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Breast cancer is one of the major public health problem in developing countries. In Malawi, cancer of the breast among females is among the top four accounting for 4.9%. The study determined the histopathologic profile of breast cancer in Northern Malawi from July 2013 to June 2018. A record based retrospective cross-sectional study was conducted at Mzuzu Central Hospital. We reviewed 202 histopathological results of breast specimens during the study period. Data was analyzed using STATA version 14.0. Out of 202 clinically diagnosed breast lesions/tumours, 102 (50.5%) were histopathologically confirmed cancerous in nature, and 100 (49.5%) were non-cancerous. Ductal carcinoma was the leading histologic presentation with 68 cases representing 66.7%. Participants in the age group of 70-89 years were 13 times more likely to develop breast cancer (OR 12.66; P-value = 0.001; 95% CI 2.79 - 57.46), compared to those in the age group 10-29 years. The magnitude of breast cancer in Mzuzu Central Hospital, Northern Malawi is alarming (50.5%). Policy makers should emphasise on awareness campaigns for early and routine breast screening, early diagnosis and early treatment.
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Affiliation(s)
| | - Master R O Chisale
- Mzuzu Central Hospital, Mzuzu City, Malawi.,Mzuzu University, Luwinga, Mzuzu City, Malawi.,Luke International Norway (LIN), Mzuzu City, Malawi
| | | | | | | | - Pocha S Kamudumuli
- University of Maryland Global Initiative Corporation, Baltimore, Lilongwe City, Malawi
| | - Joseph Wu
- Luke International Norway (LIN), Mzuzu City, Malawi.,Pingtung Christian Hospital, Overseas services, Taiwan
| | - Balwani C Mbakaya
- Mzuzu University, Luwinga, Mzuzu City, Malawi.,University of Livingstonia, Mzuzu City, Malawi
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26
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Muzumdar S, Lin G, Kerr P, Grant-Kels JM. Evidence concerning the accusation that melanoma is overdiagnosed. J Am Acad Dermatol 2021; 85:841-846. [PMID: 34116095 DOI: 10.1016/j.jaad.2021.06.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 04/25/2021] [Accepted: 06/02/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND Melanoma is one of the most commonly diagnosed malignancies in the United States and is responsible for the majority of deaths from skin cancer. OBJECTIVE Since the 1970s, the incidence of melanoma has risen appreciably while melanoma-specific mortality has remained stable. This has raised a debate about potential overdiagnosis of melanoma. Herein, we review temporal trends in melanoma incidence and mortality and explore factors that may contribute to observed trends, including an aging population in the United States, ultraviolet exposure, increased numbers of biopsies by dermatologists and physician extenders, skin cancer screenings, histopathology criteria, and historic underdiagnosis. Additionally, we discuss melanoma overdiagnosis and the extent to which it may contribute to current trends. METHODS The literature was reviewed. RESULTS Several factors may contribute to an increased incidence of melanoma, including an aging population, ultraviolet exposure, increased skin biopsies, skin cancer screenings, histopathologic criteria, historic underdiagnosis, and current overdiagnosis. LIMITATIONS Further studies are required to determine exactly which tumors are being overdiagnosed, and how to improve patient outcomes with adjustment to physician's practice. CONCLUSION The rise in the incidence of melanoma observed since the 1970s is likely multifactorial.
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Affiliation(s)
- Sonal Muzumdar
- Department of Dermatology, University of Connecticut School of Medicine, Farmington, Connecticut
| | - Gloria Lin
- Department of Dermatology, University of Connecticut School of Medicine, Farmington, Connecticut
| | - Philip Kerr
- Department of Dermatology, University of Connecticut School of Medicine, Farmington, Connecticut
| | - Jane M Grant-Kels
- Department of Dermatology, University of Connecticut School of Medicine, Farmington, Connecticut; University of Florida Dermatology Department, Gainesville, Florida.
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27
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Lee AYS, Bayly A, Lin MW. Evaluation of Polarized Light and Fluorescence Microscopy of Congo Red Stain in the Diagnosis of Renal Amyloidosis. Lab Med 2021; 52:574-577. [PMID: 33929031 DOI: 10.1093/labmed/lmab022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Amyloidosis is a devastating multisystemic disease resulting from organ deposition of misfolded proteins and subsequent organ dysfunction. An accurate diagnosis relies frequently on biopsies and microscopy techniques to detect amyloid deposition. We evaluated the diagnostic performance of Congo red staining using polarized light (PM) and fluorescence microscopy (FM) techniques in renal amyloidosis. METHODS We performed a retrospective and prospective analysis of all renal biopsies submitted at a large quarternary hospital in Sydney, Australia, that had undergone PM and FM evaluation using Congo red staining. Identification of amyloid fibrils on electron microscopy was considered the reference method. RESULTS PM and FM displayed very high sensitivity and specificity in correctly identifying amyloid deposits in renal biopsies that tested positive via Congo red staining. Comparison of the diagnostic statistics revealed that they are diagnostically equivalent. CONCLUSION In the diagnosis of renal amyloidosis on biopsy, evaluation of Congo red staining may be reliably performed via PM or FM.
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Affiliation(s)
- Adrian Y S Lee
- ICPMR and NSW Health Pathology, Westmead Hospital, Westmead, NSW, Australia.,Sydney Medical School, The University of Sydney, Westmead, NSW, Australia
| | - Angela Bayly
- ICPMR and NSW Health Pathology, Westmead Hospital, Westmead, NSW, Australia
| | - Ming-Wei Lin
- ICPMR and NSW Health Pathology, Westmead Hospital, Westmead, NSW, Australia.,Sydney Medical School, The University of Sydney, Westmead, NSW, Australia
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28
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Tomer A, Nieboer D, Roobol MJ, Bjartell A, Steyerberg EW, Rizopoulos D. Personalised biopsy schedules based on risk of Gleason upgrading for patients with low-risk prostate cancer on active surveillance. BJU Int 2021; 127:96-107. [PMID: 32531869 PMCID: PMC7818468 DOI: 10.1111/bju.15136] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/31/2020] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To develop a model and methodology for predicting the risk of Gleason upgrading in patients with prostate cancer on active surveillance (AS) and using the predicted risks to create risk-based personalised biopsy schedules as an alternative to one-size-fits-all schedules (e.g. annually). Furthermore, to assist patients and doctors in making shared decisions on biopsy schedules, by providing them quantitative estimates of the burden and benefit of opting for personalised vs any other schedule in AS. Lastly, to externally validate our model and implement it along with personalised schedules in a ready to use web-application. PATIENTS AND METHODS Repeat prostate-specific antigen (PSA) measurements, timing and results of previous biopsies, and age at baseline from the world's largest AS study, Prostate Cancer Research International Active Surveillance (PRIAS; 7813 patients, 1134 experienced upgrading). We fitted a Bayesian joint model for time-to-event and longitudinal data to this dataset. We then validated our model externally in the largest six AS cohorts of the Movember Foundation's third Global Action Plan (GAP3) database (>20 000 patients, 27 centres worldwide). Using the model predicted upgrading risks; we scheduled biopsies whenever a patient's upgrading risk was above a certain threshold. To assist patients/doctors in the choice of this threshold, and to compare the resulting personalised schedule with currently practiced schedules, along with the timing and the total number of biopsies (burden) planned, for each schedule we provided them with the time delay expected in detecting upgrading (shorter is better). RESULTS The cause-specific cumulative upgrading risk at the 5-year follow-up was 35% in PRIAS, and at most 50% in the GAP3 cohorts. In the PRIAS-based model, PSA velocity was a stronger predictor of upgrading (hazard ratio [HR] 2.47, 95% confidence interval [CI] 1.93-2.99) than the PSA level (HR 0.99, 95% CI 0.89-1.11). Our model had a moderate area under the receiver operating characteristic curve (0.6-0.7) in the validation cohorts. The prediction error was moderate (0.1-0.2) in theGAP3 cohorts where the impact of the PSA level and velocity on upgrading risk was similar to PRIAS, but large (0.2-0.3) otherwise. Our model required re-calibration of baseline upgrading risk in the validation cohorts. We implemented the validated models and the methodology for personalised schedules in a web-application (http://tiny.cc/biopsy). CONCLUSIONS We successfully developed and validated a model for predicting upgrading risk, and providing risk-based personalised biopsy decisions in AS of prostate cancer. Personalised prostate biopsies are a novel alternative to fixed one-size-fits-all schedules, which may help to reduce unnecessary prostate biopsies, while maintaining cancer control. The model and schedules made available via a web-application enable shared decision-making on biopsy schedules by comparing fixed and personalised schedules on total biopsies and expected time delay in detecting upgrading.
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Affiliation(s)
- Anirudh Tomer
- Department of BiostatisticsErasmus University Medical CenterRotterdamthe Netherlands
| | - Daan Nieboer
- Department of Public HealthErasmus University Medical CenterRotterdamthe Netherlands
- Department of UrologyErasmus University Medical CenterRotterdamthe Netherlands
| | - Monique J. Roobol
- Department of UrologyErasmus University Medical CenterRotterdamthe Netherlands
| | | | - Ewout W. Steyerberg
- Department of Public HealthErasmus University Medical CenterRotterdamthe Netherlands
- Department of Biomedical Data SciencesLeiden University Medical CenterLeidenthe Netherlands
| | - Dimitris Rizopoulos
- Department of BiostatisticsErasmus University Medical CenterRotterdamthe Netherlands
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Chamoun B, Caraben A, Torres IB, Sellares J, Jiménez R, Toapanta N, Cidraque I, Gabaldon A, Perelló M, Gonzalo R, O'Valle F, Moreso F, Serón D. A Rejection Gene Expression Score in Indication and Surveillance Biopsies Is Associated with Graft Outcome. Int J Mol Sci 2020; 21:E8237. [PMID: 33153205 DOI: 10.3390/ijms21218237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 10/30/2020] [Accepted: 11/01/2020] [Indexed: 11/26/2022] Open
Abstract
Rejection-associated gene expression has been characterized in renal allograft biopsies for cause. The aim is to evaluate rejection gene expression in subclinical rejection and in biopsies with borderline changes or interstitial fibrosis and tubular atrophy (IFTA). We included 96 biopsies. Most differentially expressed genes between normal surveillance biopsies (n = 17) and clinical rejection (n = 12) were obtained. A rejection-associated gene (RAG) score was defined as its geometric mean. The following groups were considered: (a) subclinical rejection (REJ-S, n = 6); (b) borderline changes in biopsies for cause (BL-C, n = 13); (c) borderline changes in surveillance biopsies (BL-S, n = 12); (d) IFTA in biopsies for cause (IFTA-C, n = 20); and (e) IFTA in surveillance biopsies (IFTA-S, n = 16). The outcome variable was death-censored graft loss or glomerular filtration rate decline ≥ 30 % at 2 years. A RAG score containing 109 genes derived from normal and clinical rejection (area under the curve, AUC = 1) was employed to classify the study groups. A positive RAG score was observed in 83% REJ-S, 38% BL-C, 17% BL-S, 25% IFTA-C, and 5% IFTA-S. A positive RAG score was an independent predictor of graft outcome from histological diagnosis (hazard ratio: 3.5 and 95% confidence interval: 1.1–10.9; p = 0.031). A positive RAG score predicts graft outcome in surveillance and for cause biopsies with a less severe phenotype than clinical rejection.
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30
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Lindner C, PrÖhl A, Abels M, LÖffler T, Batinic M, Jung O, Barbeck M. Specialized Histological and Histomorphometrical Analytical Methods for Biocompatibility Testing of Biomaterials for Maxillofacial Surgery in (Pre-) Clinical Studies. In Vivo 2020; 34:3137-3152. [PMID: 33144417 PMCID: PMC7811667 DOI: 10.21873/invivo.12148] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 08/01/2020] [Revised: 08/27/2020] [Accepted: 09/02/2020] [Indexed: 12/20/2022]
Abstract
Both preclinical in vivo experiments and clinical trials are indispensable for analysis of tissue reactions in evaluating the compatibility of biomaterials or medical devices, i.e. the cell types interacting with the material, integration or degradation behavior, implant bed vascularization and immunological response. In particular, both the histological workup (including the processes such as embedding, cutting, histochemical and immunohistochemical staining methods), as well as qualitative and quantitative analysis are crucial steps enabling the final evaluation of biocompatibility. We present a short overview of the most important steps of the different workup and analytical methods used in preclinical and clinical biopsies for both novice and experienced researchers in the field of biomaterial science.
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Affiliation(s)
| | | | | | | | | | - Ole Jung
- Clinic for Dermatology and Venereology, Rostock University Medical Center, Rostock, Germany
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31
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Grasso CS, Tsoi J, Onyshchenko M, Abril-Rodriguez G, Ross-Macdonald P, Wind-Rotolo M, Champhekar A, Medina E, Torrejon DY, Shin DS, Tran P, Kim YJ, Puig-Saus C, Campbell K, Vega-Crespo A, Quist M, Martignier C, Luke JJ, Wolchok JD, Johnson DB, Chmielowski B, Hodi FS, Bhatia S, Sharfman W, Urba WJ, Slingluff CL, Diab A, Haanen JBAG, Algarra SM, Pardoll DM, Anagnostou V, Topalian SL, Velculescu VE, Speiser DE, Kalbasi A, Ribas A. Conserved Interferon-γ Signaling Drives Clinical Response to Immune Checkpoint Blockade Therapy in Melanoma. Cancer Cell 2020; 38:500-515.e3. [PMID: 32916126 PMCID: PMC7872287 DOI: 10.1016/j.ccell.2020.08.005] [Citation(s) in RCA: 167] [Impact Index Per Article: 41.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 06/17/2020] [Accepted: 08/10/2020] [Indexed: 12/21/2022]
Abstract
We analyze the transcriptome of baseline and on-therapy tumor biopsies from 101 patients with advanced melanoma treated with nivolumab (anti-PD-1) alone or combined with ipilimumab (anti-CTLA-4). We find that T cell infiltration and interferon-γ (IFN-γ) signaling signatures correspond most highly with clinical response to therapy, with a reciprocal decrease in cell-cycle and WNT signaling pathways in responding biopsies. We model the interaction in 58 human cell lines, where IFN-γ in vitro exposure leads to a conserved transcriptome response unless cells have IFN-γ receptor alterations. This conserved IFN-γ transcriptome response in melanoma cells serves to amplify the antitumor immune response. Therefore, the magnitude of the antitumor T cell response and the corresponding downstream IFN-γ signaling are the main drivers of clinical response or resistance to immune checkpoint blockade therapy.
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Affiliation(s)
- Catherine S Grasso
- Jonsson Comprehensive Cancer Center at the University of California, Los Angeles (UCLA), Los Angeles, CA, USA; Cedars-Sinai Medical Center, Los Angeles, CA, USA.
| | - Jennifer Tsoi
- Jonsson Comprehensive Cancer Center at the University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Mykola Onyshchenko
- Jonsson Comprehensive Cancer Center at the University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Gabriel Abril-Rodriguez
- Jonsson Comprehensive Cancer Center at the University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | | | - Megan Wind-Rotolo
- Translational Bioinformatics, Bristol-Myers Squibb, Hopewell, NJ, USA
| | - Ameya Champhekar
- Jonsson Comprehensive Cancer Center at the University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Egmidio Medina
- Jonsson Comprehensive Cancer Center at the University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Davis Y Torrejon
- Jonsson Comprehensive Cancer Center at the University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Daniel Sanghoon Shin
- Jonsson Comprehensive Cancer Center at the University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Phuong Tran
- Jonsson Comprehensive Cancer Center at the University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Yeon Joo Kim
- Jonsson Comprehensive Cancer Center at the University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Cristina Puig-Saus
- Jonsson Comprehensive Cancer Center at the University of California, Los Angeles (UCLA), Los Angeles, CA, USA; Parker Institute for Cancer Immunotherapy, San Francisco, CA, USA
| | - Katie Campbell
- Jonsson Comprehensive Cancer Center at the University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Agustin Vega-Crespo
- Jonsson Comprehensive Cancer Center at the University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Michael Quist
- Jonsson Comprehensive Cancer Center at the University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | | | | | - Jedd D Wolchok
- Parker Institute for Cancer Immunotherapy, San Francisco, CA, USA; Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | | - Bartosz Chmielowski
- Jonsson Comprehensive Cancer Center at the University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - F Stephen Hodi
- Parker Institute for Cancer Immunotherapy, San Francisco, CA, USA; Dana Farber Cancer Institute, Boston, MA, USA
| | | | - William Sharfman
- Bloomberg-Kimmel Institute for Cancer Immunotherapy and Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Walter J Urba
- Earle A. Chiles Research Institute, Providence Cancer Institute, Portland, OR, USA
| | | | - Adi Diab
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | | | - Drew M Pardoll
- Bloomberg-Kimmel Institute for Cancer Immunotherapy and Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Valsamo Anagnostou
- Bloomberg-Kimmel Institute for Cancer Immunotherapy and Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Suzanne L Topalian
- Bloomberg-Kimmel Institute for Cancer Immunotherapy and Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Victor E Velculescu
- Bloomberg-Kimmel Institute for Cancer Immunotherapy and Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | | | - Anusha Kalbasi
- Jonsson Comprehensive Cancer Center at the University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Antoni Ribas
- Jonsson Comprehensive Cancer Center at the University of California, Los Angeles (UCLA), Los Angeles, CA, USA; Parker Institute for Cancer Immunotherapy, San Francisco, CA, USA.
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32
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Faquin WC. Cancer Cytopathology 2020: Keeping the field of cytopathology strong. Cancer Cytopathol 2020; 128:12-13. [PMID: 31905268 DOI: 10.1002/cncy.22227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 12/03/2019] [Indexed: 11/07/2022]
Affiliation(s)
- William C Faquin
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
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33
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Moreso F, Sellarès J, Soler MJ, Serón D. Transcriptome Analysis in Renal Transplant Biopsies Not Fulfilling Rejection Criteria. Int J Mol Sci 2020; 21:ijms21062245. [PMID: 32213927 PMCID: PMC7139324 DOI: 10.3390/ijms21062245] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/11/2020] [Accepted: 03/20/2020] [Indexed: 01/02/2023] Open
Abstract
The clinical significance of renal transplant biopsies displaying borderline changes suspicious for T-cell mediated rejection (TCMR) or interstitial fibrosis and tubular atrophy (IFTA) with interstitial inflammation has not been well defined. Molecular profiling to evaluate renal transplant biopsies using microarrays has been shown to be an objective measurement that adds precision to conventional histology. We review the contribution of transcriptomic analysis in surveillance and indication biopsies with borderline changes and IFTA associated with variable degrees of inflammation. Transcriptome analysis applied to biopsies with borderline changes allows to distinguish patients with rejection from those in whom mild inflammation mainly represents a response to injury. Biopsies with IFTA and inflammation occurring in unscarred tissue display a molecular pattern similar to TCMR while biopsies with IFTA and inflammation in scarred tissue, apart from T-cell activation, also express B cell, immunoglobulin and mast cell-related genes. Additionally, patients at risk for IFTA progression can be identified by genes mainly reflecting fibroblast dysregulation and immune activation. At present, it is not well established whether the expression of rejection gene transcripts in patients with fibrosis and inflammation is the consequence of an alloimmune response, tissue damage or a combination of both.
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Shah L, Fogden S, Majumdar A. Use of a chalazion clamp for intraoral biopsies: a technical note. Br J Oral Maxillofac Surg 2019; 58:105-106. [PMID: 31718917 DOI: 10.1016/j.bjoms.2019.10.307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 10/15/2019] [Indexed: 11/24/2022]
Abstract
Oral biopsies are common diagnostic and therapeutic procedures in oral and maxillofacial surgical (OMFS) outpatient departments. The chalazion clamp is similar to a pair of forceps. One extension has a flat, solid, oval plate, the other, a ring-like structure that is used to clamp and retract soft tissues. We highlight the benefits of using this simple, widely-available tool during oral biopsies. We find that the clamp increases effectiveness and efficiency for the clinician and assistant. We recommend its use in daily OMFS practice.
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Affiliation(s)
- L Shah
- Milton Keynes University Hospital, UK.
| | - S Fogden
- Milton Keynes University Hospital, UK.
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35
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Di Cosimo S, Appierto V, Silvestri M, Pruneri G, Vingiani A, Perrone F, Busico A, Folli S, Scaperrotta G, de Braud FG, Bianchi GV, Cavalieri S, Daidone MG, Dugo M. Targeted-Gene Sequencing to Catch Triple Negative Breast Cancer Heterogeneity before and after Neoadjuvant Chemotherapy. Cancers (Basel) 2019; 11:cancers11111753. [PMID: 31717320 PMCID: PMC6895966 DOI: 10.3390/cancers11111753] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/23/2019] [Accepted: 11/05/2019] [Indexed: 01/04/2023] Open
Abstract
Triple negative breast cancer (TNBC) patients not attaining pathological Complete Response (pCR) after neo-adjuvant chemotherapy (NAC) have poor prognosis. We characterized 19 patients for somatic mutations in primary tumor biopsy and residual disease (RD) at surgery by 409 cancer-related gene sequencing (IonAmpliSeqTM Comprehensive Cancer Panel). A median of four (range 1–66) genes was mutated in each primary tumor biopsy, and the most common mutated gene was TP53 followed by a long tail of low frequency mutations. There were no recurrent mutations significantly associated with pCR. However, half of patients with RD had primary tumor biopsy with mutations in genes related to the immune system compared with none of those achieving pCR. Overall, the number of mutations showed a downward trend in post- as compared to pre-NAC samples. PIK3CA was the most common altered gene after NAC. The mutational profile of TNBC during treatment as inferred from patterns of mutant allele frequencies in matched pre-and post-NAC samples showed that RD harbored alterations of cell cycle progression, PI3K/Akt/mTOR, and EGFR tyrosine kinase inhibitor-resistance pathways. Our findings support the use of targeted-gene sequencing for TNBC therapeutic development, as patients without pCR may present mutations of immune-related pathways in their primary tumor biopsy, or actionable targets in the RD.
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Affiliation(s)
- Serena Di Cosimo
- Biomarker Unit, Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Via Giovanni Antonio Amadeo 42, 20133 Milano, Italy; (V.A.); (M.S.); (G.P.); (A.V.); (F.P.); (A.B.); (S.F.); ) (G.S.); (F.G.d.B.); (G.V.B.); (S.C.); (M.G.D.)
- Correspondence: (S.D.C.); (M.D.)
| | - Valentina Appierto
- Biomarker Unit, Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Via Giovanni Antonio Amadeo 42, 20133 Milano, Italy; (V.A.); (M.S.); (G.P.); (A.V.); (F.P.); (A.B.); (S.F.); ) (G.S.); (F.G.d.B.); (G.V.B.); (S.C.); (M.G.D.)
| | - Marco Silvestri
- Biomarker Unit, Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Via Giovanni Antonio Amadeo 42, 20133 Milano, Italy; (V.A.); (M.S.); (G.P.); (A.V.); (F.P.); (A.B.); (S.F.); ) (G.S.); (F.G.d.B.); (G.V.B.); (S.C.); (M.G.D.)
| | - Giancarlo Pruneri
- Biomarker Unit, Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Via Giovanni Antonio Amadeo 42, 20133 Milano, Italy; (V.A.); (M.S.); (G.P.); (A.V.); (F.P.); (A.B.); (S.F.); ) (G.S.); (F.G.d.B.); (G.V.B.); (S.C.); (M.G.D.)
- Oncology and Hemato-Oncology Department, University of Milan, Via Festa del Perdono 7, 20122 Milano, Italy
| | - Andrea Vingiani
- Biomarker Unit, Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Via Giovanni Antonio Amadeo 42, 20133 Milano, Italy; (V.A.); (M.S.); (G.P.); (A.V.); (F.P.); (A.B.); (S.F.); ) (G.S.); (F.G.d.B.); (G.V.B.); (S.C.); (M.G.D.)
- Oncology and Hemato-Oncology Department, University of Milan, Via Festa del Perdono 7, 20122 Milano, Italy
| | - Federica Perrone
- Biomarker Unit, Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Via Giovanni Antonio Amadeo 42, 20133 Milano, Italy; (V.A.); (M.S.); (G.P.); (A.V.); (F.P.); (A.B.); (S.F.); ) (G.S.); (F.G.d.B.); (G.V.B.); (S.C.); (M.G.D.)
| | - Adele Busico
- Biomarker Unit, Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Via Giovanni Antonio Amadeo 42, 20133 Milano, Italy; (V.A.); (M.S.); (G.P.); (A.V.); (F.P.); (A.B.); (S.F.); ) (G.S.); (F.G.d.B.); (G.V.B.); (S.C.); (M.G.D.)
| | - Secondo Folli
- Biomarker Unit, Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Via Giovanni Antonio Amadeo 42, 20133 Milano, Italy; (V.A.); (M.S.); (G.P.); (A.V.); (F.P.); (A.B.); (S.F.); ) (G.S.); (F.G.d.B.); (G.V.B.); (S.C.); (M.G.D.)
| | - Gianfranco Scaperrotta
- Biomarker Unit, Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Via Giovanni Antonio Amadeo 42, 20133 Milano, Italy; (V.A.); (M.S.); (G.P.); (A.V.); (F.P.); (A.B.); (S.F.); ) (G.S.); (F.G.d.B.); (G.V.B.); (S.C.); (M.G.D.)
| | - Filippo Guglielmo de Braud
- Biomarker Unit, Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Via Giovanni Antonio Amadeo 42, 20133 Milano, Italy; (V.A.); (M.S.); (G.P.); (A.V.); (F.P.); (A.B.); (S.F.); ) (G.S.); (F.G.d.B.); (G.V.B.); (S.C.); (M.G.D.)
- Oncology and Hemato-Oncology Department, University of Milan, Via Festa del Perdono 7, 20122 Milano, Italy
| | - Giulia Valeria Bianchi
- Biomarker Unit, Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Via Giovanni Antonio Amadeo 42, 20133 Milano, Italy; (V.A.); (M.S.); (G.P.); (A.V.); (F.P.); (A.B.); (S.F.); ) (G.S.); (F.G.d.B.); (G.V.B.); (S.C.); (M.G.D.)
| | - Stefano Cavalieri
- Biomarker Unit, Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Via Giovanni Antonio Amadeo 42, 20133 Milano, Italy; (V.A.); (M.S.); (G.P.); (A.V.); (F.P.); (A.B.); (S.F.); ) (G.S.); (F.G.d.B.); (G.V.B.); (S.C.); (M.G.D.)
| | - Maria Grazia Daidone
- Biomarker Unit, Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Via Giovanni Antonio Amadeo 42, 20133 Milano, Italy; (V.A.); (M.S.); (G.P.); (A.V.); (F.P.); (A.B.); (S.F.); ) (G.S.); (F.G.d.B.); (G.V.B.); (S.C.); (M.G.D.)
| | - Matteo Dugo
- Biomarker Unit, Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Via Giovanni Antonio Amadeo 42, 20133 Milano, Italy; (V.A.); (M.S.); (G.P.); (A.V.); (F.P.); (A.B.); (S.F.); ) (G.S.); (F.G.d.B.); (G.V.B.); (S.C.); (M.G.D.)
- Correspondence: (S.D.C.); (M.D.)
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Galli R, Meinhardt M, Koch E, Schackert G, Steiner G, Kirsch M, Uckermann O. Rapid Label-Free Analysis of Brain Tumor Biopsies by Near Infrared Raman and Fluorescence Spectroscopy-A Study of 209 Patients. Front Oncol 2019; 9:1165. [PMID: 31750251 PMCID: PMC6848276 DOI: 10.3389/fonc.2019.01165] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 10/17/2019] [Indexed: 01/09/2023] Open
Abstract
In brain surgery, novel technologies are continuously developed to achieve better tumor delineation and maximize the extent of resection. Raman spectroscopy is an optical method that enables to retrieve a molecular signature of tissue biochemical composition in order to identify tumor and normal tissue. Here, the translation of Raman spectroscopy to the surgical practice for discerning a variety of different tumor entities from non-neoplastic brain parenchyma was investigated. Fresh unprocessed biopsies obtained from brain tumor surgery were analyzed over 1.5 years including all patients that gave consent. Measurements were performed with a Raman microscope by medical personnel as routine activity. The Raman and fluorescence signals of the acquired spectra were analyzed by principal component analysis, followed by supervised classification to discriminate non-tumor tissue vs. tumor and distinguish tumor entities. Histopathology of the measured biopsies was performed as reference. Classification led to the correct recognition of all non-neoplastic biopsies (7/7) and of 97% of the investigated tumor biopsies (195/202). For instance, GBM was recognized as tumor with a correct rate of 94% if primary, and of 100% if recurrent. Astrocytoma and oligodendroglioma were recognized as tumor with correct rates of 86 and 90%, respectively. All brain metastases, meningioma and schwannoma were correctly recognized as tumor and distinguished from non-neoplastic brain tissue. Furthermore, metastases were discerned from glioma with correct rate of 90%. Oligodendroglioma and astrocytoma IDH1-mutant, which differ in the presence of 1p/19q codeletion, were discerned with a correct rate of 81%. These results demonstrate the feasibility of rapid brain tumors recognition and extraction of diagnostic information by Raman spectroscopy, using a protocol that can be easily included in the routine surgical workflow.
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Affiliation(s)
- Roberta Galli
- Clinical Sensoring and Monitoring, Anesthesiology and Intensive Care Medicine, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Matthias Meinhardt
- Neuropathology, Institute of Pathology, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Edmund Koch
- Clinical Sensoring and Monitoring, Anesthesiology and Intensive Care Medicine, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Gabriele Schackert
- Neurosurgery, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Gerald Steiner
- Clinical Sensoring and Monitoring, Anesthesiology and Intensive Care Medicine, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Matthias Kirsch
- Neurosurgery, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Ortrud Uckermann
- Neurosurgery, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
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Parajuli S, Joachim E, Alagusundaramoorthy S, Aziz F, Blazel J, Garg N, Muth B, Mohamed M, Redfield RR, Mandelbrot DA, Zhong W, Djamali A. Donor-Specific Antibodies in the Absence of Rejection Are Not a Risk Factor for Allograft Failure. Kidney Int Rep 2019; 4:1057-65. [PMID: 31440696 DOI: 10.1016/j.ekir.2019.04.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 03/10/2019] [Accepted: 04/09/2019] [Indexed: 12/31/2022] Open
Abstract
Introduction Donor-specific antibodies (DSAs) are considered an important risk factor for graft injury and failure. However, there is limited information on long-term outcomes for kidney transplant recipients with positive DSAs in the absence of rejection on biopsy. Methods We evaluated all patients at the University of Wisconsin who underwent a kidney allograft biopsy between January 1, 2013, and December 31, 2016. All patients with clinical indication or protocol biopsies that were negative for acute rejection and lacked significant acute pathological features were included in the study and divided into 2 groups based on DSAs at the time of biopsy. There were a total of 1102 kidney biopsies during the study period of which 587 fulfilled our selection criteria (DSA+, n = 192, and DSA−, n = 395). The incidence of subsequent rejection and death-censored graft failure (DCGF) were outcomes of interest. Results There was no difference in acute (i + t + v + c4d + ptc + g = 0 in both groups) or chronic (ci + ct + cv + cg = 2.4 ± 2.2 vs. 2.7 ± 2.4; cg = 0.12 ± 0.48 vs. 0.13 ± 0.48) Banff scores in the index biopsy. Patients were followed for a mean of 33.1 ± 16.8 months. Kaplan-Meier analyses demonstrated a higher incidence of DCGF in DSA− group (n = 83) but this was not observed for subsequent rejection (n = 76). In multivariate Cox regression analyses, the interval from transplant to biopsy, de novo DSA, and younger age remained independently associated with increased risk of subsequent rejection. Notably, there was no association between subsequent rejection or DSA (pretransplant, de novo, persistant, Class I/II, MFIsum, or MFImax) and graft failure. Conclusion This study suggests that in the absence of biopsy-proven rejection and acute inflammation, human leukocyte antigen (HLA) DSAs are not associated with increased risk of graft failure.
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Ruhland E, Bund C, Outilaft H, Piotto M, Namer IJ. A metabolic database for biomedical studies of biopsy specimens by high-resolution magic angle spinning nuclear MR: a qualitative and quantitative tool. Magn Reson Med 2019; 82:62-83. [PMID: 30847981 PMCID: PMC6594138 DOI: 10.1002/mrm.27696] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 01/24/2019] [Accepted: 01/24/2019] [Indexed: 12/11/2022]
Abstract
PURPOSE The aim of this study is to generate a metabolic database for biomedical studies of biopsy specimens by high-resolution magic angle spinning (HRMAS) nuclear MR (NMR). METHODS Seventy-six metabolites, classically found in human biopsy samples, were prepared in aqueous solution at a known concentration and analyzed by HRMAS NMR. The spectra were recorded under the same conditions as the ones used for the analysis of biopsy specimens routinely performed in our hospital. RESULTS For each metabolite, a complete set of NMR spectra (1D 1 H, 1D 1 H-CPMG, 2D J-Resolved, 2D TOCSY, and 2D 1 H-13 C HSQC) was recorded at 500 MHz and 277 K. All spectra were manually assigned using the information contained in the different spectra and existing databases. Experiments to measure the T1 and the T2 of the different protons present in the 76 metabolites were also recorded. CONCLUSION This new HRMAS metabolic database is a useful tool for all scientists working on human biopsy specimens, particularly in the field of oncology. It will make the identification of metabolites in biopsy specimens faster and more reliable. Additionally, the knowledge of the T1 and T2 values will allow to obtain a more accurate quantification of the metabolites present in biopsy specimens.
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Affiliation(s)
- Elisa Ruhland
- MNMS Platform, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,Service de Biophysique et Médecine Nucléaire, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Caroline Bund
- MNMS Platform, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,Service de Biophysique et Médecine Nucléaire, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,ICube, Université de Strasbourg / CNRS (UMR 7357), Strasbourg, France
| | - Hassiba Outilaft
- MNMS Platform, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,ICube, Université de Strasbourg / CNRS (UMR 7357), Strasbourg, France
| | | | - Izzie-Jacques Namer
- MNMS Platform, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,Service de Biophysique et Médecine Nucléaire, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,ICube, Université de Strasbourg / CNRS (UMR 7357), Strasbourg, France
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Ramírez-Meza SM, Maldonado-González M, Hernández-Nazara ZH, Martínez-López E, Ocampo-González S, Bobadilla-Morales L, Torres-Baranda JR, Ruíz-Madrigal B. Development of an effective and rapid qPCR for identifying human ChREBPα/β isoforms in hepatic and adipose tissues. Scand J Clin Lab Invest 2019; 79:218-224. [PMID: 30813849 DOI: 10.1080/00365513.2019.1581944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Most quantitative real-time PCR (qPCR) detection methods use two types of chemistries to measure the expression levels of ChREBP isoforms, hydrolysis probes for ChREBPα and SYBR Green for ChREBPβ. Hydrolysis probes are not available to determine the ChREBPβ isoform. The aim of this study was to develop a qPCR assay based only on hydrolysis probes for both ChREBP isoforms. Liver and adipose tissue biopsies from patients undergoing elective cholecystectomy surgery were used to perform qPCR. To validate this assay, the results were compared with sequencing and High Resolution Melting (HRM) PCR assays. Direct sequencing was used to determine the sequence showing site where ChREBPβ presents its specific splicing (1 b exon/2 exon) in order to design the primers and the probe. We developed a qPCR assay to determine the ChREBP isoforms expression based on hydrolysis probes. It assays showed good efficiency (95.50%, on average), high reproducibility, and a strong linear correlation (R2 ≥ 0.99) for tissues tested. HRM analysis confirmed the specificity of the primers and the result of this assay matched (100%) with the outcomes obtained by sequencing and qPCR. Also, we obtained the ChREBPβ sequence showing exon 1b spliced to exon 2, bypassing exon 1a, and retaining the remainder of the ChREBPα exons. Based on the use of hydrolysis probes, our method can efficiently identify the expression of both ChREBP isoforms. Thus, the comparability of the qPCR results using a single chemistry (hydrolysis probes) to discriminate between both ChREBP isoforms was possible.
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Affiliation(s)
- Sandra M Ramírez-Meza
- a Programa de Doctorado en Ciencias en Biología Molecular en Medicina, Departamento de Biología Molecular y Genómica , Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara , Guadalajara , Mexico
| | - Montserrat Maldonado-González
- a Programa de Doctorado en Ciencias en Biología Molecular en Medicina, Departamento de Biología Molecular y Genómica , Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara , Guadalajara , Mexico.,b Laboratorio de Investigación en Microbiología, Departamento de Microbiología y Patología, Centro Universitario de Ciencias de la Salud , Universidad de Guadalajara , Guadalajara , Mexico
| | - Zamira H Hernández-Nazara
- a Programa de Doctorado en Ciencias en Biología Molecular en Medicina, Departamento de Biología Molecular y Genómica , Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara , Guadalajara , Mexico.,c Instituto en Investigación en Enfermedades Crónico Degenerativas, Departamento de Biología Molecular y Genómica , Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara , Guadalajara , Mexico
| | - Erika Martínez-López
- a Programa de Doctorado en Ciencias en Biología Molecular en Medicina, Departamento de Biología Molecular y Genómica , Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara , Guadalajara , Mexico
| | - Saúl Ocampo-González
- d Clínica de Cirugía de Obesidad y Enfermedades Metabólicas , OPD Hospital Civil de Guadalajara "Fray Antonio Alcalde" , Guadalajara , Mexico
| | - Lucina Bobadilla-Morales
- e Unidad de Citogenética, División de Pediatría , Hospital Civil de Guadalajara "Dr. Juan I. Menchaca", Instituto de Genética Humana "Dr. Enrique Corona Rivera" Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud Universidad de Guadalajara , Guadalajara , Mexico
| | - José R Torres-Baranda
- b Laboratorio de Investigación en Microbiología, Departamento de Microbiología y Patología, Centro Universitario de Ciencias de la Salud , Universidad de Guadalajara , Guadalajara , Mexico
| | - Bertha Ruíz-Madrigal
- a Programa de Doctorado en Ciencias en Biología Molecular en Medicina, Departamento de Biología Molecular y Genómica , Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara , Guadalajara , Mexico.,b Laboratorio de Investigación en Microbiología, Departamento de Microbiología y Patología, Centro Universitario de Ciencias de la Salud , Universidad de Guadalajara , Guadalajara , Mexico
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Tripathi M, Streutker CJ, Marginean EC. Relevance of histology in the diagnosis of reflux esophagitis. Ann N Y Acad Sci 2018; 1434:94-101. [PMID: 29766511 DOI: 10.1111/nyas.13742] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 03/20/2018] [Accepted: 03/27/2018] [Indexed: 12/16/2022]
Abstract
Reflux esophagitis is an important clinical diagnosis; however, the histologic findings can be nonspecific and overlap with other entities. Various benign changes can produce diagnostic difficulties for pathologists. In this review, the typical histologic findings of gastroesophageal reflux disease (GERD) of the esophagus are discussed, along with the issues relating to clinical correlation and technical aspects of endoscopic biopsies and specimen processing. The literature has been reviewed to discuss histologic definitions of GERD as well as current and developing controversies in the area of GERD. Histologic features are not entirely sensitive or specific for GERD. Awareness of these problems is essential; clinical and endoscopic information can be very useful in distinguishing GERD from other inflammatory lesions.
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Affiliation(s)
- Monika Tripathi
- Department of Histopathology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Catherine J Streutker
- Department of Laboratory Medicine, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada
| | - E Celia Marginean
- Department of Laboratory Medicine, Ottawa Hospital, Ottawa, Ontario, Canada
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Yuan X, Klein D, Kerscher S, West BL, Weis J, Katona I, Martini R. Macrophage Depletion Ameliorates Peripheral Neuropathy in Aging Mice. J Neurosci 2018; 38:4610-20. [PMID: 29712789 DOI: 10.1523/JNEUROSCI.3030-17.2018] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 02/06/2018] [Accepted: 03/09/2018] [Indexed: 01/02/2023] Open
Abstract
Aging is known as a major risk factor for the structure and function of the nervous system. There is urgent need to overcome such deleterious effects of age-related neurodegeneration. Here we show that peripheral nerves of 24-month-old aging C57BL/6 mice of either sex show similar pathological alterations as nerves from aging human individuals, whereas 12-month-old adult mice lack such alterations. Specifically, nerve fibers showed demyelination, remyelination and axonal lesion. Moreover, in the aging mice, neuromuscular junctions showed features typical for dying-back neuropathies, as revealed by a decline of presynaptic markers, associated with α-bungarotoxin-positive postsynapses. In line with these observations were reduced muscle strengths. These alterations were accompanied by elevated numbers of endoneurial macrophages, partially comprising the features of phagocytosing macrophages. Comparable profiles of macrophages could be identified in peripheral nerve biopsies of aging persons. To determine the pathological impact of macrophages in aging mice, we selectively targeted the cells by applying an orally administered CSF-1R specific kinase (c-FMS) inhibitor. The 6-month-lasting treatment started before development of degenerative changes at 18 months and reduced macrophage numbers in mice by ∼70%, without side effects. Strikingly, nerve structure was ameliorated and muscle strength preserved. We show, for the first time, that age-related degenerative changes in peripheral nerves are driven by macrophages. These findings may pave the way for treating degeneration in the aging peripheral nervous system by targeting macrophages, leading to reduced weakness, improved mobility, and eventually increased quality of life in the elderly.SIGNIFICANCE STATEMENT Aging is a major risk factor for the structure and function of the nervous system. Here we show that peripheral nerves of 24-month-old aging mice show similar degenerative alterations as nerves from aging human individuals. Both in mice and humans, these alterations were accompanied by endoneurial macrophages. To determine the pathological impact of macrophages in aging mice, we selectively targeted the cells by blocking a cytokine receptor, essential for macrophage survival. The treatment strongly reduced macrophage numbers and substantially improved nerve structure and muscle strength. We show, for the first time, that age-related degenerative changes in peripheral nerves are driven by macrophages. These findings may be helpful for treatment weakness and reduced mobility in the elderly.
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Perez-Lopez R, Nava Rodrigues D, Figueiredo I, Mateo J, Collins DJ, Koh DM, de Bono JS, Tunariu N. Multiparametric Magnetic Resonance Imaging of Prostate Cancer Bone Disease: Correlation With Bone Biopsy Histological and Molecular Features. Invest Radiol 2018; 53:96-102. [PMID: 28906339 PMCID: PMC5768227 DOI: 10.1097/rli.0000000000000415] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 07/29/2017] [Indexed: 12/22/2022]
Abstract
OBJECTIVES The aim of this study was to correlate magnetic resonance imaging (MRI) of castration-resistant prostate cancer (CRPC) bone metastases with histological and molecular features of bone metastases. MATERIALS AND METHODS Forty-three bone marrow biopsies from 33 metastatic CRPC (mCRPC) patients with multiparametric MRI and documented bone metastases were evaluated. A second cohort included 10 CRPC patients with no bone metastases. Associations of apparent diffusion coefficient (ADC), normalized b900 diffusion-weighted imaging (nDWI) signal, and signal-weighted fat fraction (swFF) with bone marrow biopsy histological parameters were evaluated using Mann-Whitney U test and Spearman correlations. Univariate and multivariate logistic regression models were analyzed. RESULTS Median ADC and nDWI signal was significantly higher, and median swFF was significantly lower, in bone metastases than nonmetastatic bone (P < 0.001). In the metastatic cohort, 31 (72.1%) of 43 biopsies had detectable cancer cells. Median ADC and swFF were significantly lower and median nDWI signal was significantly higher in biopsies with tumor cells versus nondetectable tumor cells (898 × 10 mm/s vs 1617 × 10 mm/s; 11.5% vs 62%; 5.3 vs 2.3, respectively; P < 0.001). Tumor cellularity inversely correlated with ADC and swFF, and positively correlated with nDWI signal (P < 0.001). In serial biopsies, taken before and after treatment, changes in multiparametric MRI parameters paralleled histological changes. CONCLUSIONS Multiparametric MRI provides valuable information about mCRPC bone metastases. These data further clinically qualify DWI as a response biomarker in mCRPC.
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Affiliation(s)
- Raquel Perez-Lopez
- From the *The Institute of Cancer Research; and †The Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Daniel Nava Rodrigues
- From the *The Institute of Cancer Research; and †The Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Ines Figueiredo
- From the *The Institute of Cancer Research; and †The Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Joaquin Mateo
- From the *The Institute of Cancer Research; and †The Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - David J. Collins
- From the *The Institute of Cancer Research; and †The Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Dow-Mu Koh
- From the *The Institute of Cancer Research; and †The Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Johann S. de Bono
- From the *The Institute of Cancer Research; and †The Royal Marsden NHS Foundation Trust, London, United Kingdom
| | - Nina Tunariu
- From the *The Institute of Cancer Research; and †The Royal Marsden NHS Foundation Trust, London, United Kingdom
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Streitparth F, Althoff C, Jonczyk M, Guettler F, Maurer M, Rathke H, Sponheuer KM, Hamm B, Teichgräber UK, de Bucourt M. Tailored interactive sequences for continuous MR-image-guided freehand biopsies of different organs in an open system at 1.0 tesla (T) - Initial experience. BIOMED ENG-BIOMED TE 2017; 62:557-563. [PMID: 28076290 DOI: 10.1515/bmt-2015-0163] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 08/22/2016] [Indexed: 01/20/2023]
Abstract
OBJECTIVES To assess the feasibility, image quality, and accuracy of freehand biopsies of liver, bone, muscle, vertebral disc, soft tissue, and other lesions using balanced steady-state free precession (SSFP, balanced fast field echo: bFFE), spoiled and nonspoiled gradient echo (FFE), and turbo spin echo (TSE) sequences for interactive continuous navigation in an open magnetic resonance imaging (MRI) system at 1.0 tesla (T). METHODS Twenty-six MR-guided biopsies (five liver, five bone, four muscle, four vertebral disc, one lung, one kidney, one suprarenal gland, and five soft or other tissue) were performed in 23 patients in a 1.0-T open magnetic resonance (MR) scanner (Panorama HFO, Philips Healthcare, Best, the Netherlands). A total of 42 samples were obtained. Depending on lesion size and location, 14-18-gauge MR-compatible biopsy sets with a length of 100 or 200 mm (Somatex Medical, Teltow, Germany), 14-18-gauge MR-compatible semiautomatic biopsy guns with a length of 100 or 150 mm (Invivo, Schwerin, Germany), or 11-gauge MR-compatible bone marrow biopsy needles with a length of 100 mm (Somatex Medical, Teltow, Germany) were employed. RESULTS All lesions were visible with continuous interactive imaging. Our initial results indicate that bFFE is particularly suitable for fast-moving organs (pulmonary, paracardial); moving organs are targeted better with T1-weighted (T1W) TSE, T1W FFE (liver) or T2-weighted (T2W) TSE (complicated cysts, adrenal glands), and static organs are successfully approached with proton density (PD) (spine) or T1W TSE (peripheral bones, musculoskeletal system). No adverse events related to the use of MRI were obtained. No complications occurred according to the Society of Interventional Radiology (SIR) clinical practice guidelines. CONCLUSION Applying tailored interactive dynamic imaging sequences for continuous navigation to liver, bone, muscle, vertebral disc, soft tissue, and other lesions can improve the feasibility, image quality, and interventional accuracy of freehand MR-guided biopsies and may hence reduce the risk of complications.
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Katz M, Freimark D, Raichlin E, Har-Zahav Y, Arad M, Kassif Y, Peled A, Asher E, Elian D, Kogan A, Shlomo N, Ofek E, Lavee J, Goldenberg I, Peled Y. Risk of early, intermediate, and late rejection following heart transplantation: Trends over the past 25 years and relation to changes in medical management. Tertiary center experience: The Sheba Heart Transplantation Registry. Clin Transplant 2017; 31. [PMID: 28753240 DOI: 10.1111/ctr.13063] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/24/2017] [Indexed: 11/30/2022]
Abstract
AIM To explore the trends in the risk for rejection following heart transplantation (HT) over the past 25 years, and their relation to changes in medical management. METHODS The study population comprised 216 HT patients. Rejection periods were defined as follows: 0-3 months (early), 3-12 months (intermediate), and 12+ months (late). HT era was dichotomized as follows: 1991-1999 (remote era) and 2000-2016 (recent era). Medication combination was categorized as newer (TAC, MMF, and everolimus) vs older therapies (AZA, CSA). RESULTS Multivariate analysis showed that patients who underwent HT during the recent era experienced a significant reduction in the risk for major rejection. These findings were consistent for early (OR = 0.44 [95% CI 0.22-0.88]), intermediate (OR = 0.02 [95% CI 0.003-0.11]), and late rejections (OR = 0.18 [95% CI 0.05-0.52]). Using the year of HT as a continuous measure showed that each 1-year increment was independently associated with a significant reduction in the risk for early, intermediate, and late rejections (5%, 21%, 18%, respectively). In contrast, the risk reduction associated with newer types of immunosuppressive therapies was not statistically significant after adjustment for the treatment period. CONCLUSIONS Major rejection rates following HT have significantly declined over the past 2 decades even after adjustment for changes in immunosuppressive therapies, suggesting that other factors may also play a role in the improved outcomes of HT recipients.
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Affiliation(s)
- Moshe Katz
- The Leviev Heart Center, Sheba Medical Center, Tel Hashomer, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Dov Freimark
- The Leviev Heart Center, Sheba Medical Center, Tel Hashomer, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Eugenia Raichlin
- Cardiology Department, Loyola University Medical Center, Maywood, IL, USA
| | - Yedael Har-Zahav
- The Leviev Heart Center, Sheba Medical Center, Tel Hashomer, Israel
| | - Michael Arad
- The Leviev Heart Center, Sheba Medical Center, Tel Hashomer, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yigal Kassif
- The Leviev Heart Center, Sheba Medical Center, Tel Hashomer, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Amir Peled
- Central Region, Clalit Health Services, Lod, Israel
| | - Elad Asher
- The Leviev Heart Center, Sheba Medical Center, Tel Hashomer, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Dan Elian
- The Leviev Heart Center, Sheba Medical Center, Tel Hashomer, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Alexander Kogan
- The Leviev Heart Center, Sheba Medical Center, Tel Hashomer, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Nir Shlomo
- Israeli Association for Cardiovascular Trials, Sheba Medical Center, Israel
| | - Efrat Ofek
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.,Institute of Pathology, Sheba Medical Center, Tel Hashomer, Israel
| | - Jacob Lavee
- The Leviev Heart Center, Sheba Medical Center, Tel Hashomer, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ilan Goldenberg
- The Leviev Heart Center, Sheba Medical Center, Tel Hashomer, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.,Israeli Association for Cardiovascular Trials, Sheba Medical Center, Israel
| | - Yael Peled
- The Leviev Heart Center, Sheba Medical Center, Tel Hashomer, Israel.,Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
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Mascellino MT, Porowska B, De Angelis M, Oliva A. Antibiotic susceptibility, heteroresistance, and updated treatment strategies in Helicobacter pylori infection. Drug Des Devel Ther 2017; 11:2209-2220. [PMID: 28814829 PMCID: PMC5546184 DOI: 10.2147/dddt.s136240] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
In this review, we discuss the problem of antibiotic resistance, heteroresistance, the utility of cultures and antibiotic susceptibility tests in Helicobacter pylori (Hp) eradication, as well as the updated treatment strategies for this infection. The prevalence of antibiotic resistance is increasing all over the world, especially for metronidazole and clarithromycin, because of their heavy use in some geographical areas. Heteroresistance (simultaneous presence of both susceptible and resistant strains in different sites of a single stomach) is another important issue, as an isolate could be mistakenly considered susceptible if a single biopsy is used for antimicrobial tests. We also examined literature data regarding eradication success rates of culture-guided and empiric therapies. The empiric therapy and the one based on susceptibility testing, in Hp eradication, may depend on several factors such as concomitant diseases, the number of previous antibiotic treatments, differences in bacterial virulence in individuals with positive or negative cultures, together with local antibiotic resistance patterns in real-world settings. Updated treatment strategies in Hp infection presented in the guidelines of the Toronto Consensus Group (2016) are reported. These suggest to prolong eradication therapy up to 14 days, replacing the old triple therapy with a quadruple therapy based on proton pump inhibitor (PPI), bismuth, metronidazole, and tetracycline for most of the patients, or as an alternative quadruple therapy without bismuth, based on the use of PPI, amoxicillin, metronidazole, and clarithromycin. The new drug vonoprazan, a first-in-class potassium-competitive acid blocker recently approved in Japan, is also considered to be a promising solution for Hp eradication, even for clarithromycin-resistant strains. Furthermore, there is growing interest in finding new therapeutic strategies, such as the development of vaccines or the use of natural resources, including probiotics, plants, or nutraceuticals.
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Affiliation(s)
| | - Barbara Porowska
- Department of Cardio-Thoracic, Vascular, General Surgery and of Organ Transplants, Policlinico Umberto I, Rome, Italy
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Sánchez-Escuredo A, Sagasta A, Revuelta I, Rodas LM, Paredes D, Musquera M, Diekmann F, Campistol JM, Solé M, Oppenheimer F. Histopathological evaluation of pretransplant donor biopsies in expanded criteria donors with high kidney donor profile index: a retrospective observational cohort study. Transpl Int 2017; 30:975-986. [PMID: 28403541 DOI: 10.1111/tri.12966] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 01/24/2017] [Accepted: 03/27/2017] [Indexed: 12/16/2022]
Abstract
There is no consensus on the allocation of renal transplants from expanded criteria donors (ECD). The Kidney Donor Profile Index (KDPI) is used without the need for pretransplant donor biopsies (PTDB). We explored whether PTDB based on Remuzzi Score (RS) allows identification of those marginal kidneys in the highest calculated KDPI risk group (>91%) that appropriate for single transplantation. A retrospective study was conducted of 485 consecutive kidneys procured from a single center and transplanted if the RS was ≤4. We compared 5-year kidney and patients survival between KDPI groups and between RS <4 or =4 in the highest KDPI group. The median KDPI (interquartile range) was 71 (66-76) for KDPI <80% (n = 77), 86 (81-90) for KDPI 81-90% (n = 82), and 97 (94-100) for KDPI >91% (n = 205). Patient survival at 5 years was 85.7%, 85.3%, and 76.09% (P = 0.058) and death-censored graft survival was 84.4%, 86.5%, 73.6% (P = 0.015), respectively for each KDPI group. In >91% calculated KDPI group, there were no differences in graft survival depending on the RS (<4 vs. =4) (P = 0.714). The implementation of PTDB based on RS used for allocation of organs with the highest KDPI range could support to the acceptance of suitable organs for single transplantation with good patient and graft survival rate.
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Affiliation(s)
- Ana Sánchez-Escuredo
- Nephrology and Renal Transplant Department, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
| | - Amaia Sagasta
- Pathology Department, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
| | - Ignacio Revuelta
- Nephrology and Renal Transplant Department, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
| | - Lida M Rodas
- Nephrology and Renal Transplant Department, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
| | - David Paredes
- Transplant Service Foundation, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
| | - Mireia Musquera
- Urology Department, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
| | - Fritz Diekmann
- Nephrology and Renal Transplant Department, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
| | - Josep M Campistol
- Nephrology and Renal Transplant Department, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
| | - Manel Solé
- Pathology Department, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
| | - Federico Oppenheimer
- Nephrology and Renal Transplant Department, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
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47
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Söderlund C, Rådegran G. Acute cellular rejection later than one year after heart transplantation: A single-center retrospective study at Skåne University Hospital in Lund 1988-2010. Clin Transplant 2017; 31. [PMID: 28480572 DOI: 10.1111/ctr.12998] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/30/2017] [Indexed: 11/29/2022]
Abstract
Routine endomyocardial biopsy (EMB) to detect acute cellular rejection (ACR) late (>1 year) after heart transplantation (HT) remains debated. To gain knowledge on late ACR and thereby approach this issue, we studied the incidence, predictors, and outcome of late ACR. 815 late EMBs from 183 patients transplanted 1988-2010 were retrospectively reviewed until June 30, 2012. Only 4.4% of the routine and 17.6% of the additional clinically indicated late EMBs showed ACR ≥ grade 2. With time post-HT, there was a clear trend toward fewer ACRs, a lower incidence of ACR per patient per year, and a deceleration in the decrease in the proportion of patients free from ACR. Sex-mismatching and first-year ACR were associated with an increased risk of late ACR, which also was associated with worse outcome. Although rare, when compared to our previous study on first-year EMBs, it appears as if late more often than early ACR remains undetected and that also late and not only early ACR influences outcome. Extended EMB surveillance >1 year post-HT therefore still seems reasonable in "high-risk" patients, as also suggested in the International Society for Heart and Lung Transplantation guidelines. These should include, but not be limited to, the two risk groups above.
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Affiliation(s)
- Carl Söderlund
- Department of Clinical Sciences Lund, Cardiology, Lund University, Lund, Sweden.,The Hemodynamic Lab, The Section for Heart Failure and Valvular Disease, VO. Heart and Lung Medicine, Skåne University Hospital, Lund, Sweden
| | - Göran Rådegran
- Department of Clinical Sciences Lund, Cardiology, Lund University, Lund, Sweden.,The Hemodynamic Lab, The Section for Heart Failure and Valvular Disease, VO. Heart and Lung Medicine, Skåne University Hospital, Lund, Sweden
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48
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Burchill SA, Beiske K, Shimada H, Ambros PF, Seeger R, Tytgat GAM, Brock PR, Haber M, Park JR, Berthold F. Recommendations for the standardization of bone marrow disease assessment and reporting in children with neuroblastoma on behalf of the International Neuroblastoma Response Criteria Bone Marrow Working Group. Cancer 2017; 123:1095-1105. [PMID: 27984660 DOI: 10.1002/cncr.30380] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [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: 05/16/2016] [Revised: 07/24/2016] [Accepted: 08/15/2016] [Indexed: 11/10/2022]
Abstract
BACKGROUND The current study was conducted to expedite international standardized reporting of bone marrow disease in children with neuroblastoma and to improve equivalence of care. METHODS A multidisciplinary International Neuroblastoma Response Criteria Bone Marrow Working Group was convened by the US National Cancer Institute in January 2012 with representation from Europe, North America, and Australia. Practical transferable recommendations to standardize the reporting of bone marrow disease were developed. RESULTS To the authors' knowledge, the current study is the first to comprehensively present consensus criteria for the collection, analysis, and reporting of the percentage area of bone marrow parenchyma occupied by tumor cells in trephine-biopsies. The quantitative analysis of neuroblastoma content in bone marrow aspirates by immunocytology and reverse transcriptase-quantitative polymerase chain reaction are revised. The inclusion of paired-like homeobox 2b (PHOX2B) for immunohistochemistry and reverse transcriptase-quantitative polymerase chain reaction is recommended. Recommendations for recording bone marrow response are provided. The authors endorse the quantitative assessment of neuroblastoma cell content in bilateral core needle biopsies-trephines and aspirates in all children with neuroblastoma, with the exception of infants, in whom the evaluation of aspirates alone is advised. It is interesting to note that 5% disease is accepted as an internationally achievable level for disease assessment. CONCLUSIONS The quantitative assessment of neuroblastoma cells is recommended to provide data from which evidence-based numerical criteria for the reporting of bone marrow response can be realized. This is particularly important in the minimal disease setting and when neuroblastoma detection in bone marrow is intermittent, where clinical impact has yet to be validated. The wide adoption of these harmonized criteria will enhance the ability to compare outcomes from different trials and facilitate collaborative trial design. Cancer 2017;123:1095-1105. © 2016 American Cancer Society.
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Affiliation(s)
- Susan A Burchill
- Children's Cancer Research Group, Leeds Institute of Cancer and Pathology, St James's University Hospital, Leeds, United Kingdom
| | - Klaus Beiske
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo and Department of Pathology, Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | - Hiroyuki Shimada
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, California
| | - Peter F Ambros
- CCRI, Children's Cancer Research Institute, Vienna, Austria
| | - Robert Seeger
- The Saban Research Institute, Children's Hospital Los Angeles, Los Angeles, California
| | | | - Penelope R Brock
- Great Ormond Street Hospital for Children NHS Trust, London, United Kingdom
| | - Michelle Haber
- Children's Cancer Institute for Medical Research, Cancer Research Centre, Sydney, New South Wales, Australia
| | - Julie R Park
- Department of Pediatrics, School of Medicine, University of Washington, Seattle Children's Hospital, Seattle, Washington
| | - Frank Berthold
- Department of Pediatric Oncology and Hematology, Center for Integrated Oncology, University of Cologne, Cologne, Germany
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49
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Sinha R, Maji B, Sarkar B, Meur S. A prospective audit of complications in 100 consecutive pediatric percutaneous renal biopsies done under real-time ultrasound guidance. Indian J Nephrol 2016; 26:329-334. [PMID: 27795625 PMCID: PMC5015509 DOI: 10.4103/0971-4065.171232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Despite being a common procedure, percutaneous renal biopsy (PRB) carries the potential for complications. The British Association of Paediatric Nephrologist (BAPN) has published standards for pediatric PRB. As Indian data are scarce, we conducted a prospective audit of 100 consecutive pediatric renal biopsies (60% males) under real-time ultrasound guidance. Nephrotic syndrome was the most common indication for PRB (68%) with minimal change disease (30%) and focal segmental glomerulosclerosis (25%) being the most common histopathological lesions. Gross hematuria was observed in six cases. Major complications was noted in one case, who needed longer hospital stay. The result of the audit demonstrated achievability of BAPN standards. In addition, we also show the usefulness of 16 gauge biopsy needle over 18 gauge biopsy needles (median number of glomeruli 25, range 3–90 vs 13, range 6–46, P = 0.001) without any increase in complications. Being a single center study, we do hope that our results will encourage a wider survey on the current state of pediatric PRB.
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Affiliation(s)
- R Sinha
- Division of Paediatric Nephrology, Institute of Child Health, Vision Care Hospital (AMRI Hospitals), Kolkata, West Bengal, India; Division of Paediatric Nephrology, Vision Care Hospital (AMRI Hospitals), Kolkata, West Bengal, India
| | - B Maji
- Division of Paediatric Nephrology, Institute of Child Health, Vision Care Hospital (AMRI Hospitals), Kolkata, West Bengal, India
| | - B Sarkar
- Paediatric Intensive Care, Vision Care Hospital (AMRI Hospitals), Kolkata, West Bengal, India
| | - S Meur
- Paediatric Intensive Care, Vision Care Hospital (AMRI Hospitals), Kolkata, West Bengal, India
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50
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Chan SW, Liew LH, Wong GR, Kallarakkal TG, Abraham MT, Ramanathan A, Zain RB. Audit of Turnaround Time for a Training Oral Histopathology Laboratory in Malaysia. Int J Surg Pathol 2016; 24:401-9. [PMID: 27006298 DOI: 10.1177/1066896916639372] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Turnaround time (TAT) is the benchmark to assess the performance of a laboratory, pathologists, and pathology services, but there are few articles on TAT of surgical pathology, particularly in relation to oral or head and neck specimens. This study investigates the TAT for oral histopathology reporting in an academic institution's training laboratory and offers recommendations to achieve better overall quality of diagnostic services. METHODS This study examined data obtained from biopsy request forms for specimens received from the Oro-Maxillofacial Surgery Department of Hospital Tengku Ampuan Rahimah Klang in the Oral Pathology Diagnostic Laboratory of the Faculty of Dentistry, University of Malaya, over a period of 3 years between January 2012 and October 2014. RESULTS TAT for surgical and decalcified specimens were increased significantly compared to biopsies. Additional special handling did not influence TAT, but increased specimen volume resulted in greater TAT. Slide interpretation was the most time-consuming stage during histopathology reporting. Overall, mean TAT was acceptable for most specimens, but the TAT goals were less than satisfactory. CONCLUSION A TAT goal appropriate for this laboratory may hence be established based on this study. Collective efforts to improve the TAT for various specimens are essential for better laboratory performance in the future.
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