Articles tagged with Histological Analysis
Researchers have identified distinct immune profiles for different subtypes of pediatric germ cell tumors, which could lead to more targeted therapies. The study found that certain tumor subtypes respond well to immunotherapy and others exhibit an immunosuppressive environment, making them more aggressive.
Researchers developed a new microfluidic method to preserve worm anatomy, linking lipid signals with body structure using mass spectrometry imaging. They identified several lipids clustering in distinct anatomical regions, providing insight into how fat molecules are organized and function across the worm.
Researchers developed a deep-learning framework, STAIG, to automatically map distinct genetic activity to tissue regions without manual alignment. The study demonstrates superior performance across various conditions, showcasing its potential for cancer research and understanding complex biological systems.
Researchers have created a new imaging technique that uses the nanostructures found on butterfly wings to analyze cancerous tissues, providing a simpler and more accessible tool for cancer diagnosis. The method has shown comparable results to conventional staining methods and advanced imaging techniques, offering a stain-free alternative.
Researchers at La Jolla Institute for Immunology have developed six lines of humanized mice to study human cases of COVID-19, shedding light on SARS-CoV-2's movement through the body and varying symptoms. The models help understand how different genetic backgrounds influence disease progression.
A new index uses inflammatory cell proportions to predict tissue healing and outcomes in patients with ulcerative colitis. The index, called the inflammatory cell enumeration index (ICEI), was developed by analyzing data from 220 patients who achieved healing.
A new study has identified specific RNAs that may help identify stage II colon cancer patients who are likely to benefit from chemotherapy following surgery. The researchers found that certain housekeeping RNAs were up-regulated in patients with recurrence, suggesting their potential role in the metastatic process.
Researchers found that Werner syndrome mice experience age-dependent and sex-specific changes in their livers and immune systems, including fatty liver accumulation and altered lipid metabolism. These findings suggest a potential link between immunoglobulin variants and fatty liver progression in the disorder.
A new surgical platform using mass spectrometry identifies key gene mutations in brain cancer, including IDH mutations, during surgery. This allows for rapid diagnosis, prognosis, and tumor resection to improve patient outcomes.
Researchers found cyclin D1 expression in patients with penile cancer (PC) is associated with clinical and histopathological features. Patients with cyclin D1 expression had lower disease-free survival compared to the cyclin D1-negative group.
Researchers have developed a new imaging technique that rapidly and accurately identifies cancerous tissues in breast samples. The method uses machine learning algorithms trained on hyperspectral dark-field microscopy data to pinpoint regions of invasive ductal carcinoma and invasive mucinous carcinoma.
A study found that early Mesozoic animals, including dinosaurs, grew quickly around 230 million years ago. This feature is not unique to dinosaurs but was shared by several non-dinosaur reptiles as well.
Researchers developed a machine-learning model to assess prostate cancer biopsy samples, overcoming limitations of traditional methods. The new model, nnU-Net, provides accurate 3D segmentation of glandular tissue structures, leading to better prognostic analyses and potential improvements in patient outcomes.
A study published in PLOS ONE suggests that childhood vitamin D deficiency was widespread in industrialized England during the 18th and 19th centuries. Analysis of teeth from 25 individuals reveals a high incidence of VDD, with males affected more frequently than females, possibly related to social dynamics.
A new oviraptorosaur species was found in the end-Maastrichtian Hell Creek Formation of North America. The dinosaur weighed approximately the same as an average woman, providing valuable insights into its biology and ecosystem.
Researchers discuss recent advances in blood-based liquid biopsies for prostate cancer interrogation, highlighting key biomarkers like CTCs, ctDNA, and exosomes. The studies suggest that these approaches can aid in predicting tumor recurrence, improving treatment response, and evaluating prognosis.
A study comparing PI-RADS 2.0 and 2.1 found no significant differences in upgrade (29% vs. 22%) or downgrade (19% vs. 21%) rates from targeted biopsy to radical prostatectomy, suggesting no improvement in prostate cancer grade assessment with the latest PI-RADS update.
Researchers investigated the role of tertiary lymphoid tissues in aging kidney disease, identifying proinflammatory interactions between renal cells and immune cells that promote inflammation and injury. The study suggests targeting proinflammatory cytokines for potential therapeutic strategies.
Researchers analyzed BORIS mutations and protein expression in breast cancer tissue samples, finding frequent mutations associated with breast carcinoma progression. The study suggests the BORIS gene as a potential biomarker for breast cancer.
Research finds that E171 nanoparticles are rapidly absorbed through the buccal cavity, causing oxidative stress and damaging DNA in human oral epithelial cells, potentially affecting cell regeneration
A recent study led by Dr Rachael Rigby from Lancaster University found that delays in stoma reversal surgery do not impact on risk of complications or commensal microflora loss, atrophy, or scarring. However, a higher degree of microflora loss is associated with an increased risk of complications.
Researchers developed an AI-based method for virtual staining of histopathological tissue samples, producing images that closely resemble actual chemical-stained samples. This reduces chemical burden and manual work while enabling the use of tissues for other purposes.
A team of scientists at Max Planck Institute for the Science of Light developed a method to quickly and accurately diagnose cancer using artificial intelligence and real-time deformability cytometry. The method reduces analysis time from hours to under 30 minutes, enabling faster decision-making during surgery.
A team of scientists created a new, fast, and precise method for analyzing cells in tissue samples from cancer patients without the need for a trained pathologist. The method uses artificial intelligence to evaluate data produced by a technique called real-time deformability cytometry.
Researchers propose a new method of clustering colorectal cancer patients using differential presence of exons (DPE) sequencing, which can provide valuable information on CRC progression and response to therapy. This analysis may also reduce costs and time required for staging CRC patients.
A recent study analyzed 7,301 metastatic breast cancer patients with MTAP loss, revealing younger age, higher TNBC cases, and BRCA1 mutations. The findings also suggest potential therapeutic agents targeting PRMT5 and MTA2 in MTAP-deficient cancers.
Researchers developed a new device that detects and analyzes cancer cells in blood samples, enabling doctors to avoid invasive biopsies and monitor treatment progress. The Static Droplet Microfluidic device uses metabolic signatures to differentiate tumour cells from normal blood cells.
Researchers have developed a novel prognostic index to predict survival outcomes in gastric cancer patients. The inflammation-combined prognostic index (ICPI) combines three biomarkers - lymphocyte-to-monocyte ratio, neutrophil-to-lymphocyte ratio, and platelet-to-lymphocyte ratio - to provide a personalized prognosis for each patient.
Researchers developed a multimodal imaging-based tool, the active biopsy guidance system (ABGS), to improve oral cancer diagnosis. The ABGS provides clinically actionable direct visible guidance for biopsies, enhancing precision and potentially saving lives.
Researchers developed a laser-based approach to perform microbiopsies, enabling fast, painless tissue sampling with minimal damage. The novel technique uses laser ablation to extract tiny tissue volumes, which can be analyzed using virtual H&E imaging and other techniques in minutes, not hours.
Researchers found evidence of fibrolamellar bone in early tetrapod Whatcheeria, suggesting rapid juvenile growth. This contradicts the long-held assumption that slow growth was ancestral for tetrapods, and instead reveals a more complex life history.
Idiopathic plasmacytic lymphadenopathy (IPL) has been confirmed as a distinct clinicopathologically uniform disease, which can be reclassified into an independent subtype of idiopathic multicentric Castleman disease (iMCD). IPL showed greater plasmacytosis and hyperplastic germinal centers compared to non-IPL groups.
A large multi-center study analyzing patient records from three major cancer centers found that ILC is detected later and has worse outcomes than IDC. The research highlights the need for new imaging technologies to improve early detection of ILC, which often spreads beyond breast tissue before diagnosis.
The study analyzed DNA methylation in skin tumor samples, revealing correlations between changes in proteins regulating the organism and prognosis. The results identified potential markers of patient survival and suggested a new route for understanding melanoma subtypes.
A study using gadoxetate disodium-enhanced MRI found associations between imaging characteristics and hepatocellular adenoma (HCA) subtypes. The algorithm identified common HCA subtypes with high accuracy, including β-catenin exon 3 mutations.
A Brazilian study reveals that SARS-CoV-2 targets astrocytes in the brain, reducing neuron viability and causing damage. Infection was confirmed using MRI scans of mild COVID-19 patients and experiments on human nerve cells.
An artificial intelligence model trained on histological images of surgical specimens accurately classified patients with and without Crohn disease recurrence. The model revealed previously unrecognized differences in adipose cells and mast cell infiltration, enabling stratification by prognosis for postoperative Crohn disease patients.
Researchers created detailed 3D maps of the metathalamus using BigBrain dataset, gaining insight into its cellular structure and subcortical nuclei. The maps have clinical relevance for diagnosing neurological disorders and aiding neurosurgery, as the metathalamus is involved in many conditions.
Scientists from Japan and USA develop a microfluidic device for purification of tuberculosis genomic DNA fragments, enabling accurate diagnosis of diseases. The device uses transient ITP and electrokinetic trapping to detect and purify small cfDNA fragments.
Researchers shed light on the evolution of mammalian tusks by tracing them back to ancient mammal relatives called dicynodonts. Dicynodonts had protruding tusks in their upper jaws, but they were not always true tusks – instead, some had enamel-coated teeth that did not fit the definition.
Detailed analyses of cremated bone fragments from Tomb of Nestor's Cup uncovered at least three humans with varying life stages, alongside animal remains like goats and dogs. The study sheds new light on funeral practices and ancient Greek culture.
Researchers at Karolinska Institutet developed an AI-based tool to improve breast cancer diagnosis and predict recurrence risk. The method divides patients with grade 2 tumours into high-risk and low-risk sub-groups, enabling personalized treatment.
A study by the California Academy of Sciences and colleagues found significant tissue abnormalities in oysters from the Gulf Coast, even years after the devastating oil spill. The researchers discovered higher rates of metaplasia in Eastern oysters, which can cause debilitating health issues.
Researchers identified six novel molecular subtypes of thymic epithelial tumors that are independent of World Health Organization histologic type. The study used genomic information from The Cancer Genome Atlas dataset and the IU-TAB-1 cell line, and found no association between WHO histologic subtype and molecular subtypes.
Researchers analyzed DNA repair targeting in cutaneous apocrine sweat gland carcinoma (CAC) cells with a PALB2 aberration. They found sensitivities to BET-bromodomain inhibition and modest sensitivity to DNA-PKi, ATRi, WEE1i, and PARPi. The study also identified a potential therapeutic opportunity for targeting PALB2 deficient cells th...
A team of researchers has successfully analyzed over 8,000 proteins in fixed lung cancer tissue samples, providing a detailed understanding of molecular processes in cancer cells. The study aims to help identify the best treatment for each tumor and may lead to new biomarkers and therapeutic targets.
A pilot study comparing liquid biopsy with tissue-based test found that liquid biopsy results were approximately 10 days faster than tissue biopsy. Liquid biopsy identified actionable genes in 14 cases, while tissue biopsy only detected them in 11 cases.
The American Academy of Otolaryngology-Head and Neck Surgery showcased the latest research in otolaryngology at its Virtual Annual Meeting. The event featured 14 'Best of Orals' studies, highlighting outstanding scientific merit and innovation.
Researchers at Purdue University have developed a collapsible basket technology that aims to improve drug discovery and personalized medicine. The technology accelerates the analysis process by reducing the time-consuming step of retrieving cell and tissue samples for histological analysis.
The assay has a clinically relevant 5-day turnaround time and can be conducted on as little as 20 ng genomic DNA. It requires minimum input of tumor DNA without the need for matched normal and is histology agnostic, addressing pre-analytical variability.
Researchers identified high levels of circularized E7 RNA as a positive prognostic marker in anal squamous cell carcinoma (ASCC). The study suggests that circ E7 may play a role in HPV-driven cancers, including head and neck squamous cell carcinomas.
Researchers analyzed 80 endometrium samples to improve diagnosis accuracy. They found that the day of menstrual cycle reported by women often does not match the actual phase. The study aims to establish causes and treatments for endometriosis, a disease affecting 10-15% of reproductive-aged women.
Researchers at Ruhr-Universität Bochum have developed a label-free method for rapid cancer diagnosis using infrared imaging, which can perform analysis in just a few minutes. The technique, combined with bioinformatical image analysis, shows promising results with 97% accuracy compared to traditional histopathological analyses.
A novel chip-based gene expression tool has been developed to analyze RNA levels in cancerous tissue samples quickly and accurately, while preserving spatial information. The technique allows for the analysis of entire tissue samples and identification of cancer cells in under two hours.
Engineers at Caltech have developed a new microscopy technique that can analyze tumor tissue in real-time, reducing the need for follow-up surgeries. The technology, called photoacoustic microscopy, has the potential to revolutionize breast cancer treatment and could be available to surgeons within several years.
Clint Alfaro has been honored with the Analytical and Bioanalytical Chemistry Best Paper Award for his research on using mass spectrometry to analyze kidney tissue from patients with renal cell carcinoma. The study demonstrated high sensitivity and specificity of touch-spray mass spectrometry in identifying cancerous tissue.
Analysis of a new fossil suggests that giant dinosaurs like Rapetosaurus krausei were born with adult-like body proportions, allowing for early independence. This finding implies that parental care was less crucial for these species compared to others.
A new assay using RT-MLPA has been developed to differentiate between germinal center B-cell-like (GCB) and activated B-cell-like (ABC) subtypes of diffuse large B-cell lymphoma. The assay is accurate, simple, flexible, short turnaround time, low cost, and efficient.
A smartphone-based device developed by Massachusetts General Hospital researchers uses hologram technology to collect detailed microscopic images for digital analysis of cancer cells and tissues. The D3 system can detect cancer proteins with high accuracy, categorizing biopsy samples as high-risk or low-risk in under an hour.
A team of researchers has demonstrated the advantages of the HOPE fixation strategy, which preserves tissue structure while allowing modern analysis techniques like proteomics and phospho-proteomics. This breakthrough enables personalized medicine and opens up new opportunities for disease research and therapy.