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International Journal of Experimental Pathology

https://read.qxmd.com/read/38746968/correction-to-clinical-applications-of-gene-therapy-for-rare-diseases-a-review
#1
(no author information available yet)
No abstract text is available yet for this article.
May 15, 2024: International Journal of Experimental Pathology
https://read.qxmd.com/read/38722178/muscle-fibre-morphometric-analysis-musma-correlates-with-muscle-function-and-cardiovascular-risk-prognosis
#2
JOURNAL ARTICLE
Larisse Longo, Bárbara Jonson Bartikoski, Valessa Emanoele Gabriel de Souza, Fernando Salvati, Carolina Uribe-Cruz, Guido Lenz, Ricardo Machado Xavier, Mário Reis Álvares-da-Silva, Eduardo Cremonese Filippi-Chiela
Morphometry of striated muscle fibres is critical for monitoring muscle health and function. Here, we evaluated functional parameters of skeletal and cardiac striated muscle in two experimental models using the Morphometric Analysis of Muscle Fibre tool (MusMA). The collagen-induced arthritis model was used to evaluate the function of skeletal striated muscle and the non-alcoholic fatty liver disease model was used for cardiac striated muscle analysis. After euthanasia, we used haeamatoxylin and eosin stained sections of skeletal and cardiac muscle to perform muscle fibre segmentation and morphometric analysis...
May 9, 2024: International Journal of Experimental Pathology
https://read.qxmd.com/read/38717047/microfluidics-based-egfr-mutation-detection-and-its-implication-in-the-resource-limited-clinical-setting
#3
JOURNAL ARTICLE
Pradnya Joshi, Prachi Gogte, Trupti Pai, Mamta Gurav, Dipika Dhanawade, Nupur Karnik, Gauri Deshpande, Rajiv Kaushal, Omshree Shetty
Management of lung cancer today obligates a mutational analysis of the epidermal growth factor receptor (EGFR) gene particularly when Tyrosine Kinase Inhibitor (TKI) therapy is being considered as part of prognostic stratification. This study evaluates the performance of automated microfluidics-based EGFR mutation detection and its significance in clinical diagnostic settings. Formalin-fixed, paraffin-embedded (FFPE) samples from NSCLC patients (n = 174) were included in a two-phase study. Phase I: Validation of the platform by comparing the results with conventional real-time PCR and next-generation sequencing (NGS) platform...
May 8, 2024: International Journal of Experimental Pathology
https://read.qxmd.com/read/38477495/trilobatin-contributes-to-the-improvement-of-myopathy-in-a-mouse-model-of-duchenne-muscular-dystrophy
#4
JOURNAL ARTICLE
Túlio de Almeida Hermes, Paula Fratini, Beatriz Godinho Nascimento, Laís Leite Ferreira, Giuliana Petri, Fernando Luiz Affonso Fonseca, Alzira Alves de Siqueira Carvalho, David Feder
Duchenne muscular dystrophy (DMD) occurs due to genetic mutations that lead to a deficiency in dystrophin production and consequent progressive degeneration of skeletal muscle fibres, through oxidative stress and an exacerbated inflammatory process. The flavonoid trilobatin (TLB) demonstrates antioxidant and anti-inflammatory potential. Its high safety profile and effective action make it a potent therapy for the process of dystrophic muscle myonecrosis. Thus, we sought to investigate the action of TLB on damage in a DMD model, the mdx mouse...
March 13, 2024: International Journal of Experimental Pathology
https://read.qxmd.com/read/38328944/tgf%C3%AE-r1-inhibition-drives-hepatocellular-carcinoma-proliferation-through-induction-of-toll-like-receptor-signalling
#5
JOURNAL ARTICLE
Fatma El Zahraa Ammar Mohamed, Bedair Dewidar, Tao Lin, Matthias P Ebert, Steven Dooley, Nadja M Meindl-Beinker, Seddik Hammad
Transforming growth factor (TGF)-β and toll-like receptors (TLRs) have been shown to independently modulate the proliferation of hepatocellular carcinoma (HCC). Since a direct cross-talk between these two signalling pathways in HCC has not been clearly described before, we aimed here to explore the possibility of such interaction. A human HCC tissue array (n = 20 vs. four control samples), human HCC samples (n = 10) and steatohepatitis-driven murine HCC samples (control, NASH and HCC; n = 6/group) were immunostained for TGFβR1, pSMAD2, TRAF6, IRAK1 and PCNA...
February 8, 2024: International Journal of Experimental Pathology
https://read.qxmd.com/read/38152045/mir-22-3p-facilitates-bone-marrow-mesenchymal-stem-cell-osteogenesis-and-fracture-healing-through-the-sostdc1-pi3k-akt-pathway
#6
JOURNAL ARTICLE
Chunqiu Wang, Xinguo Wang, Hui Cheng, Jiahu Fang
Bone fractures are the most common form of musculoskeletal trauma worldwide. Numerous microRNAs (miRNAs) have been suggested to be participants in regulating bone-related diseases. Recent studies revealed the regulatory role of miR-22-3p in osteogenic differentiation, but its role in fracture healing has not been investigated previously. Here, a rat femoral fracture model was established, Bone marrow mesenchymal stem cells (BMSCs) were isolated to detect the specific function and underlying mechanisms of miR-22-3p...
December 28, 2023: International Journal of Experimental Pathology
https://read.qxmd.com/read/38062984/increased-accumulation-of-the-advanced-glycation-endproduct-ne-carboxymethyl-lysine-in-the-intramyocardial-vasculature-in-patients-with-epicarditis
#7
JOURNAL ARTICLE
U Baylan, A Baidoshvili, S Simsek, C G Schalkwijk, Hwm Niessen, Paj Krijnen
Advanced glycation end-products (AGEs) are implicated in the pathogenesis of vascular disease. In previous studies we have found increased deposition of N(e)-(carboxymethyl)lysine (CML) in intramyocardial vasculature in the heart in acute myocardial infarction and myocarditis. It is known that the process of inflammation plays a role in the formation of AGEs. In this study we have explored the presence of CML (a major AGE) in the heart of patients with epicarditis using a monoclonal anti-CML antibody. Nine patients with epicarditis (n = 9) died and their hearts were used for this study, control were hearts from patients who died from conditions unrelated to heart disease and without signs of myocarditis or epicarditis CML deposition and complement were significantly increased in patients with epicarditis compared to control hearts...
December 8, 2023: International Journal of Experimental Pathology
https://read.qxmd.com/read/38054576/circular-rna-circvapa-modulates-macrophage-pyroptosis-in-sepsis-induced-acute-lung-injury-through-targeting-mir-212-3p-sirt1-nrf2-nlrp3-axis
#8
JOURNAL ARTICLE
Yanjing Huang, Jinquan Lin, Zhiwei Wu, Yiming Li
Sepsis-induced acute lung injury (ALI) is an inflammatory condition involving the pyroptosis of macrophages. This study investigated the role of circular RNA hsa_circ_0006990 (circVAPA) in regulating macrophage pyroptosis in ALI and the underlying mechanisms. The expression pattern of circVAPA was examined in the mouse model of ALI and in the LPS-treated RAW264.7 macrophage cell line. Lung tissue damage was evaluated by haematoxylin and eosin staining, immunohistochemistry and a myeloperoxidase activity assay...
December 6, 2023: International Journal of Experimental Pathology
https://read.qxmd.com/read/37991201/anti-inflammatory-and-healing-effect-of-the-polysaccharidic-extract-of-opuntia-ficus-indica-cladodes-in-cutaneous-excisional-wounds-in-rats
#9
JOURNAL ARTICLE
Beatriz Lima Adjafre, Iásly Costa Lima, Ana Paula Negreiros Nunes Alves, Rafael Aires Lessa, Arcelina Pacheco Cunha, Maria Gonçalves Pereira, Ana Maria Sampaio Assreuy, Mário Rogério Lima Mota
This study aimed to investigate the anti-inflammatory and wound healing effects of the polysaccharide extract from Opuntia ficus-indica cladodes (TPL-Ofi) using a rat cutaneous wound model. After anaesthesia, four 7-mm-diameter dorsal wounds per animal (n = 6/group for each experimental day of evaluation) were created in female Wistar rats using a surgical punch. The animals were treated topically twice daily with TPL-Ofi (0.01-1%; treated group) or sterile saline (control group) for a period of 21 days...
November 22, 2023: International Journal of Experimental Pathology
https://read.qxmd.com/read/37969023/exploring-effect-of-m2-macrophages-on-experimental-full-thickness-wound-healing-in-streptozotocin-induced-diabetic-rats
#10
JOURNAL ARTICLE
Parmis Khoshnoudi, Soroush Sabiza, Mohammad Khosravi, Babak Mohamadian
Diabetes mellitus is one of the most prevalent medical conditions, in both humans and animals. People with diabetes mellitus often experience slower than normal wound healing, making it a serious health concern. This study investigates the effect of M2 differentiated macrophages on full-thickness wound healing in white Westar rats exposed to streptozocin 70 mg/kg. A full-thickness skin defect with dimensions of 2 × 2 cm was created on the back of all the animals, and their blood sugar was simultaneously assessed...
November 15, 2023: International Journal of Experimental Pathology
https://read.qxmd.com/read/37899670/notoginsenoside-r1-promotes-osteogenic-differentiation-of-human-bone-marrow-mesenchymal-stem-cells-via-er%C3%AE-gsk-3%C3%AE-%C3%AE-catenin-signalling-pathway
#11
JOURNAL ARTICLE
Wei Lu, Yuanxin Shi, Minglei Qian
Human bone marrow mesenchymal stem cells (hBMSCs) are attractive therapeutic agents for bone tissue regeneration owing to their osteogenic differentiation potential. Notoginsenoside R1 (NGR1) is a novel phytoestrogen with diverse pharmacological activities. Here, we probed whether NGR1 has an effect on the osteogenic differentiation of hBMSCs. EdU, CCK-8 and Transwell assays were used to measure proliferation and migration of hBMSCs after treatment with different doses of NGR1. hBMSCs were treated with osteogenic differentiation induction medium for osteogenesis...
October 30, 2023: International Journal of Experimental Pathology
https://read.qxmd.com/read/37828780/interaction-between-mitochondrial-homeostasis-and-barrier-function-in-lipopolysaccharide-induced-endothelial-cell-injury
#12
JOURNAL ARTICLE
Weiwei Zhu, Xiaojing Liu, Liqing Luo, Xiao Huang, Xiaozhi Wang
This study aimed to investigate the effects of mitochondrial homeostasis on lipopolysaccharide (LPS)-induced endothelial cell barrier function and the mechanisms that underlie these effects. Cells were treated with LPS or oligomycin (mitochondrial adenosine triphosphate synthase inhibitor) and the mitochondrial morphology, mitochondrial reactive oxygen species (mtROS), and mitochondrial membrane potential (ΔΨm) were evaluated. Moreover, the shedding of glycocalyx-heparan sulphate (HS), the levels of HS-specific degrading enzyme heparanase (HPA), and the expression of occludin and zonula occludens (ZO-1) of Tight Junctions (TJ)s, which are mediated by myosin light chain phosphorylation (p-MLC), were assessed...
October 12, 2023: International Journal of Experimental Pathology
https://read.qxmd.com/read/37705329/british-society-for-matrix-biology-spring-meeting-2023-vascular-inflammation-and-the-extracellular-matrix
#13
JOURNAL ARTICLE
(no author information available yet)
No abstract text is available yet for this article.
October 2023: International Journal of Experimental Pathology
https://read.qxmd.com/read/37750190/histomorphometric-lung-density-evaluation-of-immulina-treatment-using-a-murine-influenza-pneumonia-model
#14
JOURNAL ARTICLE
Floyd D Wilson, Tahir M Mir, Mohammad K Ashfaq, Jin Zhang, Nirmal D Pugh, Ikhlas A Khan, Lanny W Pace, Frederic J Hoerr
Histomorphometric lung density measurements were used to evaluate the effects of Immulina on mouse pneumonia. Mice were intra-nasally exposed to H1N1 influenza virus at a dose of 5 × 104 PFU/50 μL/mouse. Lung density was measured using the NIH ImageJ software program. Density values were compared to semiquantitative pneumonia severity scores. Lung photomicrographs were evaluated at 25-×, 40-× and 400-× magnification. The study included viral inoculated controls (IC) and non-inoculated controls (NC) and mice either treated or not treated with Immulina...
September 26, 2023: International Journal of Experimental Pathology
https://read.qxmd.com/read/37638687/inhibition-of-inflammation-and-infiltration-of-m2-macrophages-in-nsclc-through-the-atf3-csf1-axis-role-of-mir-27a-3p
#15
JOURNAL ARTICLE
Bin Zhou, Yan Xu, Li Xu, Yi Kong, Kang Li, Bolin Chen, Jia Li
Non-small cell lung cancer (NSCLC) imposes a significant economic burden on patients and society due to its low overall cure and survival rates. Tumour-associated macrophages (TAM) affect tumour development and may be a novel therapeutic target for cancer. We collected NSCLC and tumour-adjacent tissue samples. Compared with the tumour-adjacent tissues, the Activation Transcription Factor 3 (ATF3) and Colony Stimulating Factor 1 (CSF-1) were increased in NSCLC tissues. Levels of ATF3 and CSF-1 were identified in different cell lines (HBE, A549, SPC-A-1, NCI-H1299 and NCI-H1795)...
August 28, 2023: International Journal of Experimental Pathology
https://read.qxmd.com/read/37622735/optimization-of-decellularization-methods-using-human-small-intestinal-submucosa-for-scaffold-generation-in-regenerative-medicine
#16
JOURNAL ARTICLE
Shumei Mineta, Shunji Endo, Tomio Ueno
Porcine small intestinal submucosa, despite its successful use as a scaffold in regenerative medicine, has innate biomechanical heterogeneity. In this study, we hypothesized that human small intestinal submucosa could be a viable alternative bio-scaffold. For the first time, we characterize submucosal extraction from human small intestine and examine appropriate decellularization methods. In total, 16 human small intestinal submucosal samples were obtained and decellularized using three reported methods of porcine decellularization: Abraham, Badylak, and Luo...
August 25, 2023: International Journal of Experimental Pathology
https://read.qxmd.com/read/37594023/panx1-knockout-promotes-preneoplastic-aberrant-crypt-foci-development-in-a-chemically-induced-model-of-mouse-colon-carcinogenesis
#17
JOURNAL ARTICLE
Sara Gomes Espírito Santo, Tereza Cristina Da Silva, Bruno Cogliati, Luís Fernando Barbisan, Guilherme Ribeiro Romualdo
Colorectal cancer, which is the third leading cause of cancer-related deaths worldwide, is a multistep disease, featuring preneoplastic aberrant crypt foci (ACF) as the early morphological manifestation. The roles of hemichannel-forming transmembrane Pannexin 1 (Panx1) protein have not been investigated in the context of colon carcinogenesis yet, although it has contrasting roles in other cancer types. Thus, this study was conducted to examine the effects of Panx1 knockout (Panx1-/- ) on the early events of chemically induced colon carcinogenesis in mouse...
August 18, 2023: International Journal of Experimental Pathology
https://read.qxmd.com/read/37177842/clinical-applications-of-gene-therapy-for-rare-diseases-a-review
#18
REVIEW
Ioannis Papaioannou, James S Owen, Rafael J Yáñez-Muñoz
Rare diseases collectively exact a high toll on society due to their sheer number and overall prevalence. Their heterogeneity, diversity, and nature pose daunting clinical challenges for both management and treatment. In this review, we discuss recent advances in clinical applications of gene therapy for rare diseases, focusing on a variety of viral and non-viral strategies. The use of adeno-associated virus (AAV) vectors is discussed in the context of Luxturna, licenced for the treatment of RPE65 deficiency in the retinal epithelium...
August 2023: International Journal of Experimental Pathology
https://read.qxmd.com/read/37032493/abnormal-expression-and-role-of-microrna-214-3p-slc8a1-in-neonatal-hypoxic-ischaemic-encephalopathy
#19
JOURNAL ARTICLE
Liu Yang, Li Zhang, Jing Zhu, Yuqian Wang, Ning Zou, Zhengjuan Liu, Yingjie Wang
Neonatal hypoxic-ischaemic encephalopathy (HIE) refers to brain damage caused by intra-uterine distress and asphyxia/hypoxia during the perinatal and neonatal periods. MicroRNA (MiR)-214-3p plays a critical role in cell growth and apoptosis. The aim of this study was to investigate the expression and role of miR-214-3p in neonatal HIE development, and to explore the underlying mechanisms. The expression of miR-214-3p was significantly down-regulated, while that of Slc8a1, a direct target of miR-214-3p, was significantly up-regulated, in the brain tissue of neonatal HIE rats...
August 2023: International Journal of Experimental Pathology
https://read.qxmd.com/read/37431082/nek6-knockdown-polarized-macrophages-into-a-pro-inflammatory-phenotype-via-inhibiting-stat3-expression
#20
JOURNAL ARTICLE
Xiaoyan Wu, Ke-Qiong Deng, Huan-Huan Cai, Ziyue Zeng, Jian-Lei Cao, Lin Zhang, Zhibing Lu, Wen-Lin Cheng
Recently macrophage polarization has emerged as playing an essential role in the oathogenesis of atherosclerosis, which is the most important underlying process in many types of cardiovascular diseases. Although Nek6 has been reported to be involved in various cellular processes, the effect of Nek6 on macrophage polarization remains unknown. Macrophages exposed to lipopolysaccharide (LPS) or IL-4 were used to establish an in vitro model for the study of regulation of classically (M1) or alternatively (M2) activated macrophage...
July 10, 2023: International Journal of Experimental Pathology
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