14 research outputs found
Platelets and Inflammation: Relations between Platelet Counts and Markers of Inflammation
Platelets, or thrombocytes are small non-nucleated cells that are primarily responsible for the formation of the platelet plug, and consequently in primary hemostasis. However, their role is not limited only to a response to cell injury, but they also respond to systemic inflammation. Due to factors such as a shared lineage with other cells of the blood, recent studies showing the molecular expression of immune modulators on platelets, and the release of inflammatory molecules leading to chemoattraction by responder molecules. These implications may also go deeper into the pathogenesis of cancers in the human body, and quantification of that relation, platelets with inflammation, is the aim of the stud
Analysis of Hardware and Software Security Challenges in IoT
Internet of things is an emerging trend that developed many technologies, where each and every device connected through network and can be controlled from remote location. IoT is a successful beneficial technology. It is a backbone for smart home, smart City, e-agriculture, smart grids, smart farming. There is lots of security and privacy flaws occur in IoT enabled device especially for software, hardware and hybrid prospective. IoT network security and privacy are very important aspects for application domain. To get complete secure environment by using protocols, methods, IoT security framework, security and privacy policies and security algorithm. The main objective is to develop a secure IoT technology. “Without trust and security, Web services are dead on arrival”.Â
BIBLIOMETRIC ANALYSIS OF NAMED ENTITY RECOGNITION FOR CHEMOINFORMATICS AND BIOMEDICAL INFORMATION EXTRACTION OF OVARIAN CANCER
With the massive amount of data that has been generated in the form of unstructured text documents, Biomedical Named Entity Recognition (BioNER) is becoming increasingly important in the field of biomedical research. Since currently there does not exist any automatic archiving of the obtained results, a lot of this information remains hidden in the textual details and is not easily accessible for further analysis. Hence, text mining methods and natural language processing techniques are used for the extraction of information from such publications.Named entity recognition, is a subtask that comes under information extraction that focuses on finding and categorizing specific entities in text.
In this paper, bibliometric analysis of named entity recognition of ovarian cancer is carried out using information about publications from Scopus. The most productive journals, countries and authors are determined. The most frequently cited article and its citation history has been described. Also bibliometric maps based on citation network among countries are constructed.
This study can assist people in the medical field to get a comprehensive understanding of the study of BioNER. It can also be utilized for reference works, for the research and application of the BioNER visualization methods
The evolution of lung cancer and impact of subclonal selection in TRACERx
Lung cancer is the leading cause of cancer-associated mortality worldwide. Here we analysed 1,644 tumour regions sampled at surgery or during follow-up from the first 421 patients with non-small cell lung cancer prospectively enrolled into the TRACERx study. This project aims to decipher lung cancer evolution and address the primary study endpoint: determining the relationship between intratumour heterogeneity and clinical outcome. In lung adenocarcinoma, mutations in 22 out of 40 common cancer genes were under significant subclonal selection, including classical tumour initiators such as TP53 and KRAS. We defined evolutionary dependencies between drivers, mutational processes and whole genome doubling (WGD) events. Despite patients having a history of smoking, 8% of lung adenocarcinomas lacked evidence of tobacco-induced mutagenesis. These tumours also had similar detection rates for EGFR mutations and for RET, ROS1, ALK and MET oncogenic isoforms compared with tumours in never-smokers, which suggests that they have a similar aetiology and pathogenesis. Large subclonal expansions were associated with positive subclonal selection. Patients with tumours harbouring recent subclonal expansions, on the terminus of a phylogenetic branch, had significantly shorter disease-free survival. Subclonal WGD was detected in 19% of tumours, and 10% of tumours harboured multiple subclonal WGDs in parallel. Subclonal, but not truncal, WGD was associated with shorter disease-free survival. Copy number heterogeneity was associated with extrathoracic relapse within 1 year after surgery. These data demonstrate the importance of clonal expansion, WGD and copy number instability in determining the timing and patterns of relapse in non-small cell lung cancer and provide a comprehensive clinical cancer evolutionary data resource
The evolution of non-small cell lung cancer metastases in TRACERx
Metastatic disease is responsible for the majority of cancer-related deaths. We report the longitudinal evolutionary analysis of 126 non-small cell lung cancer (NSCLC) tumours from 421 prospectively recruited patients in TRACERx who developed metastatic disease, compared with a control cohort of 144 non-metastatic tumours. In 25% of cases, metastases diverged early, before the last clonal sweep in the primary tumour, and early divergence was enriched for patients who were smokers at the time of initial diagnosis. Simulations suggested that early metastatic divergence more frequently occurred at smaller tumour diameters (less than 8 mm). Single-region primary tumour sampling resulted in 83% of late divergence cases being misclassified as early, highlighting the importance of extensive primary tumour sampling. Polyclonal dissemination, which was associated with extrathoracic disease recurrence, was found in 32% of cases. Primary lymph node disease contributed to metastatic relapse in less than 20% of cases, representing a hallmark of metastatic potential rather than a route to subsequent recurrences/disease progression. Metastasis-seeding subclones exhibited subclonal expansions within primary tumours, probably reflecting positive selection. Our findings highlight the importance of selection in metastatic clone evolution within untreated primary tumours, the distinction between monoclonal versus polyclonal seeding in dictating site of recurrence, the limitations of current radiological screening approaches for early diverging tumours and the need to develop strategies to target metastasis-seeding subclones before relapse
Genomic–transcriptomic evolution in lung cancer and metastasis
Intratumour heterogeneity (ITH) fuels lung cancer evolution, which leads to immune evasion and resistance to therapy. Here, using paired whole-exome and RNA sequencing data, we investigate intratumour transcriptomic diversity in 354 non-small cell lung cancer tumours from 347 out of the first 421 patients prospectively recruited into the TRACERx study. Analyses of 947 tumour regions, representing both primary and metastatic disease, alongside 96 tumour-adjacent normal tissue samples implicate the transcriptome as a major source of phenotypic variation. Gene expression levels and ITH relate to patterns of positive and negative selection during tumour evolution. We observe frequent copy number-independent allele-specific expression that is linked to epigenomic dysfunction. Allele-specific expression can also result in genomic–transcriptomic parallel evolution, which converges on cancer gene disruption. We extract signatures of RNA single-base substitutions and link their aetiology to the activity of the RNA-editing enzymes ADAR and APOBEC3A, thereby revealing otherwise undetected ongoing APOBEC activity in tumours. Characterizing the transcriptomes of primary–metastatic tumour pairs, we combine multiple machine-learning approaches that leverage genomic and transcriptomic variables to link metastasis-seeding potential to the evolutionary context of mutations and increased proliferation within primary tumour regions. These results highlight the interplay between the genome and transcriptome in influencing ITH, lung cancer evolution and metastasis
Antibodies against endogenous retroviruses promote lung cancer immunotherapy
B cells are frequently found in the margins of solid tumours as organized follicles in ectopic lymphoid organs called tertiary lymphoid structures (TLS). Although TLS have been found to correlate with improved patient survival and response to immune checkpoint blockade (ICB), the underlying mechanisms of this association remain elusive. Here we investigate lung-resident B cell responses in patients from the TRACERx 421 (Tracking Non-Small-Cell Lung Cancer Evolution Through Therapy) and other lung cancer cohorts, and in a recently established immunogenic mouse model for lung adenocarcinoma. We find that both human and mouse lung adenocarcinomas elicit local germinal centre responses and tumour-binding antibodies, and further identify endogenous retrovirus (ERV) envelope glycoproteins as a dominant anti-tumour antibody target. ERV-targeting B cell responses are amplified by ICB in both humans and mice, and by targeted inhibition of KRAS(G12C) in the mouse model. ERV-reactive antibodies exert anti-tumour activity that extends survival in the mouse model, and ERV expression predicts the outcome of ICB in human lung adenocarcinoma. Finally, we find that effective immunotherapy in the mouse model requires CXCL13-dependent TLS formation. Conversely, therapeutic CXCL13 treatment potentiates anti-tumour immunity and synergizes with ICB. Our findings provide a possible mechanistic basis for the association of TLS with immunotherapy response
Agnikarma in Ayurveda- A review article
Ayurveda is the everlasting supreme science of medicine because it deals with promotion of health and curing diseases. Sushruta known as father of surgery has described various surgical and para surgical measures. Sushruta has mentioned different methods of management of diseases, such as Bheshaja karma, Ksharkarma, Agnikarma and Shastrakarma. In this fast lifestyle patients need instant result on all pain. Agnikarma is one such procedure and it is believed that disease treayed with this never reoccurs. This Agnikarma is original idea of modern cauterization procedure. This review deals with various aspects of Agnikarma
Platelets and Inflammation: Relations between Platelet Counts and Markers of Inflammation
Platelets, or thrombocytes are small non-nucleated cells that are primarily responsible for the formation of the platelet plug, and consequently in primary hemostasis. However, their role is not limited only to a response to cell injury, but they also respond to systemic inflammation. Due to factors such as a shared lineage with other cells of the blood, recent studies showing the molecular expression of immune modulators on platelets, and the release of inflammatory molecules leading to chemoattraction by responder molecules. These implications may also go deeper into the pathogenesis of cancers in the human body, and quantification of that relation, platelets with inflammation, is the aim of the stud
Image Fusion Methods for Medical and General Purpose Applications
The image fusion is used to combine the complementary information from multiple images of the same scene into a single image which includes more information than rest of the input images. In situations where spatial and spectral information is required in a single image such as in medical imaging, remote sensing, digital camera; image fusion is necessary. Images are fused by Spatial domain & Transform domain methods. Quality of fused images is assessed by several quality metrics