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Beta-cell activity and development of Type 1 diabetes. Beta 细胞活性与 1 型糖尿病的发展。
IF 2.8 4区 医学
Apmis Pub Date : 2024-05-26 DOI: 10.1111/apm.13441
Rikke Thea, Karsten Buschard
{"title":"Beta-cell activity and development of Type 1 diabetes.","authors":"Rikke Thea, Karsten Buschard","doi":"10.1111/apm.13441","DOIUrl":"https://doi.org/10.1111/apm.13441","url":null,"abstract":"<p><p>Type 1 diabetes (T1D) is an autoimmune disease, resulting in diminished islet integrity and destruction of the insulin-secreting beta cells. In this review, we investigate the intrinsic relationship between the development of T1D and the activity of the beta cells. The idea was initially hypothesized in 1982 that an increased beta-cell activity would enhance the surface antigen expression and thereby attract the immune system. Later, other findings support this idea, including increased risk of T1D development during third trimester of pregnancy, and the difference in T1D incidence in Russian and Finnish Karelia due to different lifestyles. Other implications of high beta-cell activity, such as reduced sulfatide levels, formation of non-correct insulin molecules and an increase in IFN-alpha upon virus attack, can contribute to the development of T1D. A possible way to prevent the development of T1D is to diminish beta-cell activity, which has shown promising results in animal models.</p>","PeriodicalId":8167,"journal":{"name":"Apmis","volume":" ","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141154600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhanced angiogenesis of human umbilical vein endothelial cells via THP-1-derived M2c-like macrophages and treatment with proteasome inhibitors ‘bortezomib and ixazomib’ 通过 THP-1 衍生的 M2c 样巨噬细胞和蛋白酶体抑制剂 "硼替佐米和伊沙佐米 "的治疗增强人脐静脉内皮细胞的血管生成。
IF 2.2 4区 医学
Apmis Pub Date : 2024-05-22 DOI: 10.1111/apm.13426
Selin Engür-Öztürk, Elif Kaya-Tİlkİ, Zerrin Cantürk, Miriş Dİkmen
{"title":"Enhanced angiogenesis of human umbilical vein endothelial cells via THP-1-derived M2c-like macrophages and treatment with proteasome inhibitors ‘bortezomib and ixazomib’","authors":"Selin Engür-Öztürk,&nbsp;Elif Kaya-Tİlkİ,&nbsp;Zerrin Cantürk,&nbsp;Miriş Dİkmen","doi":"10.1111/apm.13426","DOIUrl":"10.1111/apm.13426","url":null,"abstract":"<p>The leading cause of cancer-related death is lung cancer, with metastasis being the most common cause of death. To elucidate the role of macrophages in lung cancer and angiogenesis processes, we established an in vitro co-culture model of A549 or HUVEC with THP-1 cells that polarized to M2c macrophages with hydrocortisone. The proteasome inhibitors bortezomib and ixazomib were investigated for their effects on proliferation, invasion, migration, metastasis, and angiogenesis pathways. The effects of bortezomib and ixazomib on gene expression in gene panels, including crucial genes related to angiogenesis and proteasomes, were investigated after the co-culture model to determine these effects at the molecular level. In conclusion, bortezomib and ixazomib showed antiproliferative effects in both cells, as well as in M2c macrophage co-culture. M2c macrophages also increased invasion in A549 cells and both invasion and migration in HUVEC. mRNA expression upregulation, specifically in the NFKB and VEGF genes, supported the metastatic and angiogenic effects found in A549 and HUVEC with M2c macrophage co-culture. Additionally, bortezomib inhibited the VEGFB pathway in HUVEC and NFKB1 in A549 cells. The significant findings obtained as a result of this study will provide information regarding angiogenesis induced by M2 macrophages.</p>","PeriodicalId":8167,"journal":{"name":"Apmis","volume":"132 8","pages":"594-607"},"PeriodicalIF":2.2,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/apm.13426","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141074955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fumarate hydratase–deficient renal cell carcinoma: an oncology care institutional experience 富马酸氢化酶缺陷型肾细胞癌:肿瘤护理机构的经验。
IF 2.2 4区 医学
Apmis Pub Date : 2024-05-22 DOI: 10.1111/apm.13425
Meenakshi Kamboj, Gurudutt Gupta, Sunil Pasricha, Anurag Mehta, Sudhir Rawal, Amitabh Singh, Anila Sharma, Garima Durga, Divya Bansal, Himanshi Diwan
{"title":"Fumarate hydratase–deficient renal cell carcinoma: an oncology care institutional experience","authors":"Meenakshi Kamboj,&nbsp;Gurudutt Gupta,&nbsp;Sunil Pasricha,&nbsp;Anurag Mehta,&nbsp;Sudhir Rawal,&nbsp;Amitabh Singh,&nbsp;Anila Sharma,&nbsp;Garima Durga,&nbsp;Divya Bansal,&nbsp;Himanshi Diwan","doi":"10.1111/apm.13425","DOIUrl":"10.1111/apm.13425","url":null,"abstract":"<p>Renal cell carcinoma (RCC) accounts for 2% of all cancer cases worldwide, and majority are sporadic. The latest World Health Organization (WHO) classification of renal cell tumors (fifth edition, 2022) has molecularly defined renal tumor entities, which includes fumarate hydratase (FH)–deficient RCC. FH-deficient RCC is an aggressive carcinoma caused by pathogenic alterations in FH gene, seen in 15% of patients with hereditary leiomyomatosis and renal cell cancer syndrome (HLRCC) syndrome. These tumors occur more frequently at a younger age and present at an advanced stage, carrying a dismal prognosis. We report a series of 10 cases of FH-deficient RCC. The mean age was 49.8 years, and all cases presented in advanced stages (III and IV). Morphologically, the cases had varied architectural patterns with characteristic eosinophilic macronucleoli and perinucleolar halo. On immunohistochemistry (IHC), all showed diffuse nucleo-cytoplasmic expression of S-(2-succino)-cysteine (2-SC), with loss of FH in seven cases. FH-deficient RCCs are aggressive neoplasms and can be diagnosed using specific IHC markers (FH and 2-SC). These patients should undergo germline testing for FH gene mutation, genetic counseling, and surveillance of family members.</p>","PeriodicalId":8167,"journal":{"name":"Apmis","volume":"132 8","pages":"544-552"},"PeriodicalIF":2.2,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141075006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The criteria for chronic rhinosinusitis in children with cystic fibrosis are rarely fulfilled after initiation of CFTR modulator treatment 囊性纤维化患儿在开始接受 CFTR 调节剂治疗后,很少能达到慢性鼻炎的标准。
IF 2.2 4区 医学
Apmis Pub Date : 2024-05-21 DOI: 10.1111/apm.13427
Magne Bech, Marianne Skov, Ida S. B. Andersen, Christian von Buchwald, Kasper Aanæs
{"title":"The criteria for chronic rhinosinusitis in children with cystic fibrosis are rarely fulfilled after initiation of CFTR modulator treatment","authors":"Magne Bech,&nbsp;Marianne Skov,&nbsp;Ida S. B. Andersen,&nbsp;Christian von Buchwald,&nbsp;Kasper Aanæs","doi":"10.1111/apm.13427","DOIUrl":"10.1111/apm.13427","url":null,"abstract":"<p>The vast majority of people with cystic fibrosis (pwCF) have untreated secondary chronic rhinosinusitis (CRS). Whereas the introduction of the cystic fibrosis transmembrane conductance regulator modulator (CFTRm) treatment regime has improved the lung function of pwCF, few studies have been published examining the effect on sinonasal symptoms in children. Our aim was to explore the effect of double CFTRm treatment on CRS and olfaction in children with CF. pwCF were included in this non-randomized cross-sectional study, where an otolaryngologist performed a complete ENT examination before initiating treatment with elaxacaftor/tezacaftor/ivacaftor (ETI). Twenty-three pwCF aged 6–12 years were included. Eighteen of 23 patients were on a double CFTRm treatment, and 5 patients were CFTRm naive, respectively. Altogether, 19 had normal olfaction, 20 had none or mild CRS symptoms according to SNOT-22, and 14 had a normal endoscopy. None of the patients had symptoms of chronic rhinosinusitis lasting for more than 12 weeks, thus none of the patients fulfilled the criteria for CRS. Children with CF treated with double CFTRm have few to no symptoms of CRS and normal olfaction, which is an improvement compared with children following treatment modalities prior to CFTRm.</p>","PeriodicalId":8167,"journal":{"name":"Apmis","volume":"132 9","pages":"625-631"},"PeriodicalIF":2.2,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/apm.13427","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141075008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stage-related increase in PIM2 expression in mycosis fungoides 真菌病中 PIM2 表达的阶段性增加。
IF 2.2 4区 医学
Apmis Pub Date : 2024-05-16 DOI: 10.1111/apm.13423
Mie Holm Nielsen, Pia Rude Nielsen, Michael Bzorek, Jens Ole Eriksen, Ulrike Wehkamp, Lise Maria Lindahl, Anders Woetmann, Niels Ødum, Thomas Litman, Lise Mette Rahbek Gjerdrum
{"title":"Stage-related increase in PIM2 expression in mycosis fungoides","authors":"Mie Holm Nielsen,&nbsp;Pia Rude Nielsen,&nbsp;Michael Bzorek,&nbsp;Jens Ole Eriksen,&nbsp;Ulrike Wehkamp,&nbsp;Lise Maria Lindahl,&nbsp;Anders Woetmann,&nbsp;Niels Ødum,&nbsp;Thomas Litman,&nbsp;Lise Mette Rahbek Gjerdrum","doi":"10.1111/apm.13423","DOIUrl":"10.1111/apm.13423","url":null,"abstract":"<p>The oncogene PIM2 is upregulated in several malignancies but has never been investigated in mycosis fungoides (MF), the most common type of cutaneous T-cell lymphoma (CTCL). PIM2 is a well-known oncogene and is regulated by cell signaling pathways like the JAK/STAT- and NF-kB-pathway, key regulators in the pathogenesis of CTCL. The aim of this study was to examine the role of PIM2 in MF. PIM2 gene expression was measured in 81 formalin-fixed paraffin-embedded skin biopsies from patients with MF and 46 control biopsies from healthy skin (HS) and benign inflammatory skin disease (BID). Validation of PIM2 protein expression was performed on selected biopsies with immunohistochemical staining. We found a significant difference in gene expression levels between both early stage MF and HS (<i>p</i> &lt; 0.0001), and BID (<i>p</i> &lt; 0.0001). In addition, the PIM2 gene expression was higher in advanced-stage MF compared to early stage disease (<i>p</i> = 0.0001). No significant difference in gene expression levels was found between patients with and without disease progression. In conclusion, we found PIM2 expression is significantly increased in MF compared to controls, and in advanced-stage MF compared to early stage MF. These findings could potentially have diagnostic value in discriminating early stage MF from BID.</p>","PeriodicalId":8167,"journal":{"name":"Apmis","volume":"132 8","pages":"564-570"},"PeriodicalIF":2.2,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140955722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Activity of propyl-propane-thiosulfinate and propyl-propane-thiosulfonate against carbapenem-resistant Gram-negative bacteria 丙基丙烷硫代磺酸盐和丙基丙烷硫代磺酸盐对耐碳青霉烯类革兰氏阴性菌的活性。
IF 2.2 4区 医学
Apmis Pub Date : 2024-05-16 DOI: 10.1111/apm.13420
Antonio Sorlózano-Puerto, Laura Cerezo-Collado, Elvira Roca-Lagrilliere, Alberto Baños-Arjona, José Gutiérrez-Fernández
{"title":"Activity of propyl-propane-thiosulfinate and propyl-propane-thiosulfonate against carbapenem-resistant Gram-negative bacteria","authors":"Antonio Sorlózano-Puerto,&nbsp;Laura Cerezo-Collado,&nbsp;Elvira Roca-Lagrilliere,&nbsp;Alberto Baños-Arjona,&nbsp;José Gutiérrez-Fernández","doi":"10.1111/apm.13420","DOIUrl":"10.1111/apm.13420","url":null,"abstract":"<p>Organosulfur compounds derived from plants of the <i>Allium</i> genus, such as propyl-propane-thiosulfinate (PTS) and propyl-propane-thiosulfonate (PTSO), have been proposed as an alternative in antibiotic resistance. The aim of this study was to compare the activity of these substances with other antibiotics against clinical isolates of carbapenem-resistant (CAR-R) and carbapenem-susceptible (CAR-S) Gram-negative bacteria. A total of 126 clinical isolates of CAR-R and 155 CAR-S bacteria were selected, including Enterobacterales, <i>A. baumannii</i> and <i>P. aeruginosa</i>. The antibiotic susceptibility of all isolates was assessed using the microdilution and Kirby–Bauer methods for PTS, PTSO, amoxicillin/clavulanate, piperacillin/tazobactam, cefotaxime, ceftazidime, cefepime, imipenem, ciprofloxacin, and amikacin. Both PTS and PTSO demonstrated <i>in vitro</i> bactericidal activity against CAR-R <i>Enterobacteriaceae</i> and <i>A. baumannii</i>, with no significant difference in activity compared to their response against CAR-S isolates. However, both compounds were less active against <i>P. aeruginosa</i> than against any of the other bacteria, regardless of their resistance to carbapenems. In all cases, the minimum inhibitory concentration values of PTSO were significantly lower than those of PTS. These findings offer valuable information about the potential antibacterial use of these substances, particularly against infections that currently have limited therapeutic options.</p>","PeriodicalId":8167,"journal":{"name":"Apmis","volume":"132 8","pages":"581-593"},"PeriodicalIF":2.2,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/apm.13420","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140955656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Staining pattern of specific and cross-reacting Melan-A antibodies: A comparative study on 15,840 samples from 133 human tumor types 特异性和交叉反应 Melan-A 抗体的染色模式:对来自 133 种人类肿瘤类型的 15,840 份样本的比较研究。
IF 2.8 4区 医学
Apmis Pub Date : 2024-05-16 DOI: 10.1111/apm.13408
Shiva Boroojerdi, Sören Weidemann, Anne Menz, Maximilian Lennartz, Sebastian Dwertmann Rico, Ria Schlichter, Simon Kind, Viktor Reiswich, Florian Viehweger, Ahmed Abdulwahab Bawahab, Doris Höflmeyer, Christoph Fraune, Natalia Gorbokon, Andreas M. Luebke, Claudia Hube-Magg, Franziska Büscheck, Till Krech, Andrea Hinsch, Frank Jacobsen, Eike Burandt, Guido Sauter, Ronald Simon, Martina Kluth, Stefan Steurer, Sarah Minner, Andreas H. Marx, Christian Bernreuther, Till S. Clauditz, David Dum, Patrick Lebok
{"title":"Staining pattern of specific and cross-reacting Melan-A antibodies: A comparative study on 15,840 samples from 133 human tumor types","authors":"Shiva Boroojerdi,&nbsp;Sören Weidemann,&nbsp;Anne Menz,&nbsp;Maximilian Lennartz,&nbsp;Sebastian Dwertmann Rico,&nbsp;Ria Schlichter,&nbsp;Simon Kind,&nbsp;Viktor Reiswich,&nbsp;Florian Viehweger,&nbsp;Ahmed Abdulwahab Bawahab,&nbsp;Doris Höflmeyer,&nbsp;Christoph Fraune,&nbsp;Natalia Gorbokon,&nbsp;Andreas M. Luebke,&nbsp;Claudia Hube-Magg,&nbsp;Franziska Büscheck,&nbsp;Till Krech,&nbsp;Andrea Hinsch,&nbsp;Frank Jacobsen,&nbsp;Eike Burandt,&nbsp;Guido Sauter,&nbsp;Ronald Simon,&nbsp;Martina Kluth,&nbsp;Stefan Steurer,&nbsp;Sarah Minner,&nbsp;Andreas H. Marx,&nbsp;Christian Bernreuther,&nbsp;Till S. Clauditz,&nbsp;David Dum,&nbsp;Patrick Lebok","doi":"10.1111/apm.13408","DOIUrl":"10.1111/apm.13408","url":null,"abstract":"<p>The Melan-A (melanocyte antigen) protein, also termed ‘melanoma antigen recognized by T cells 1’ (MART-1) is a protein with unknown function whose expression is specific for the melanocyte lineage. Antibodies against Melan-A are thus used for identifying melanocytic tumors, but some Melan-A antibodies show an additional – diagnostically useful – cross-reactivity against an unspecified protein involved in corticosteroid hormone synthesis. To comprehensively compare the staining patterns of a specific and a cross-reactive Melan-A antibody in normal and neoplastic tissues, tissue microarrays containing 15,840 samples from 133 different tumor types and subtypes as well as 608 samples of 76 different normal tissue types were analyzed by immunohistochemistry. For the Melan-A-specific antibody ‘Melan-A specific’ (MSVA-900M), Melan-A positivity was seen in 96.0% of 25 benign nevi, 93.0% of 40 primary and 86.7% of 75 metastatic melanomas, 82.4% of 85 renal angiomyolipomas as well as 96.4% of 84 neurofibromas, 2.2% of 46 granular cell tumors, 1.0% of 104 schwannomas, and 1.1% of 87 leiomyosarcomas. The cross-reactive antibody ‘Melan-A+' (MSVA-901M+) stained 98.1% of the tumors stained by ‘Melan-A specific’. In addition, high positivity rates were seen in sex-cord-stroma tumors of the ovary (35.3%–100%) and the testis (86.7%) as well as for adrenocortical neoplasms (76.3%–83.0%). Only nine further tumor groups showed Melan-A+ staining, including five different categories of urothelial carcinomas. Our data provide a comprehensive overview on the staining patterns of specific and cross-reactive Melan-A antibodies. The data demonstrate that both antibodies are highly useful for their specific purpose. It is important for pathologists to distinguish these two Melan-A antibody subtypes for their daily work.</p>","PeriodicalId":8167,"journal":{"name":"Apmis","volume":"132 7","pages":"479-491"},"PeriodicalIF":2.8,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/apm.13408","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140955727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Myositis ossificans mimicking bone surface osteosarcoma: case report with literature review 模仿骨表面骨肉瘤的骨化性肌炎:病例报告与文献综述。
IF 2.2 4区 医学
Apmis Pub Date : 2024-05-13 DOI: 10.1111/apm.13422
Joseph O Werenski, Yin P Hung, Connie Y Chang, G Petur Nielsen, Santiago A Lozano-Calderón
{"title":"Myositis ossificans mimicking bone surface osteosarcoma: case report with literature review","authors":"Joseph O Werenski,&nbsp;Yin P Hung,&nbsp;Connie Y Chang,&nbsp;G Petur Nielsen,&nbsp;Santiago A Lozano-Calderón","doi":"10.1111/apm.13422","DOIUrl":"10.1111/apm.13422","url":null,"abstract":"<p>Myositis ossificans, a benign tumor composed of spindle cells and osteoblasts, can clinically and radiologically mimic osteosarcoma. While recognition and accurate diagnosis of myositis ossificans can be a challenge, this is critical as it may allow a conservative surgical approach to maximize functional outcomes. Herein, we present a patient with surface myositis ossificans confirmed genetically by the presence of <i>COL1A1::USP6</i> gene fusion, along with a literature review. Due to the enhanced visualization of the bone matrix, computed tomography (CT) imaging may be a superior imaging modality to magnetic resonance (MR) imaging. Staged biopsies with samples obtained from the periphery and center of the lesions may allow pathologists to discern the zonal distribution histologically. Furthermore, immunohistochemistry fluorescence in situ hybridization and molecular testing can aid in the distinction of myositis ossificans from mimics. Because of their resemblance to other bone tumors, these cases of myositis ossificans highlight the importance of a multidisciplinary approach integrating clinical, radiologic, and pathologic analysis and involving serial imaging, sampling, and judicious use of ancillary immunohistochemical and molecular testing.</p>","PeriodicalId":8167,"journal":{"name":"Apmis","volume":"132 8","pages":"535-543"},"PeriodicalIF":2.2,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140915779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fourier-transform infrared spectroscopy imaging is a useful adjunct to routine histopathology to identify failure of polyethylene inlays in revision total hip arthroplasty 傅立叶变换红外光谱成像是常规组织病理学的有效辅助手段,可用于识别翻修全髋关节置换术中聚乙烯嵌体的失效情况。
IF 2.2 4区 医学
Apmis Pub Date : 2024-05-13 DOI: 10.1111/apm.13421
Songyun Liu, Deborah J. Hall, Corina Dommann-Scherrer, Robin Pourzal, Peter Wahl
{"title":"Fourier-transform infrared spectroscopy imaging is a useful adjunct to routine histopathology to identify failure of polyethylene inlays in revision total hip arthroplasty","authors":"Songyun Liu,&nbsp;Deborah J. Hall,&nbsp;Corina Dommann-Scherrer,&nbsp;Robin Pourzal,&nbsp;Peter Wahl","doi":"10.1111/apm.13421","DOIUrl":"10.1111/apm.13421","url":null,"abstract":"<p>The use of highly crosslinked ultra-high molecular weight polyethylene (XLPE) has significantly reduced the volumetric wear of acetabular liners, thereby reducing the incidence of osteolysis. However, contemporary components tend to generate smaller wear particles, which can no longer be identified using conventional histology. This technical limitation can result in imprecise diagnosis. Here, we report on two uncemented total hip arthroplasty cases (~7 years <i>in situ</i>) revised for periprosthetic fracture of the femur and femoral loosening, respectively. Both liners exhibited prominent wear. The retrieved pseudocapsular tissue exhibited a strong macrophage infiltration without microscopically identifiable polyethylene particles. Yet, using Fourier-transform infrared micro-spectroscopic imaging (FTIR-I), we demonstrated the prominent intracellular accumulation of polyethylene debris in both cases. This study shows that particle induced osteolysis can still occur with XLPE liners, even under 10 years <i>in situ</i>. Furthermore, we demonstrate the difficulty of determining the presence of polyethylene debris within periprosthetic tissue. Considering the potentially increased bioactivity of finer particles from XLPE compared to conventional liners, an accurate detection method is required, and new histopathological hallmarks of particle induced osteolysis are needed. FTIR-I is a great tool to that end and can help the accurate determination of foreign body tissue responses.</p>","PeriodicalId":8167,"journal":{"name":"Apmis","volume":"132 8","pages":"553-563"},"PeriodicalIF":2.2,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/apm.13421","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140915776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of a reverse transcription loop-mediated isothermal amplification assay with novel quantitative pH biosensor readout method for SARS-CoV-2 detection 开发反转录环介导等温扩增测定法和新型 pH 生物传感器定量读出法,用于检测 SARS-CoV-2
IF 2.8 4区 医学
Apmis Pub Date : 2024-04-25 DOI: 10.1111/apm.13415
Dian Ekayanti Astari, Muhammad Nasrum Massi, Rina Masadah, Marhaen Hardjo, Rosdiana Natzir, Michael Erlichster, Gursharan Chana, Efstratios Skafidas, Zeba Islam Seraj, Sabrina M. Elias, Gita Vita Soraya
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