Articles tagged with Pathology
Researchers from Tokyo Metropolitan University identified optimal sedatives and anesthetics for studying marmoset brains at rest, preserving the resting state network. The study suggests a more realistic solution for accurate data, with Midazolam or Dexmedetomidine combined with light restraint being the most effective option.
Researchers evaluated modified CEUS using perfluorobutane for diagnosing hepatocellular carcinoma in high-risk patients. The study found no significant difference in sensitivity, specificity, or accuracy between modified CEUS and CT/MRI LI-RADS v2018.
Researchers at Eötvös Loránd University developed two tests to assess age-related memory performance and neophobia differences in dogs. The memory test found that older dogs make more mistakes before finding food, while the novel object test revealed an increased tendency to avoid new objects with age.
Researchers have discovered a new gene, Schlafen11 (SLFN11), which correlates with chemotherapy response in medulloblastoma. The study's findings suggest SLFN11 can help improve treatment outcomes by increasing sensitivity to cisplatin.
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 new UCLA-led study found comprehensive brain-wide changes in individuals with autism spectrum disorder, refining scientists' understanding of how the condition progresses. The study analyzed gene expression across 11 cortical regions, revealing strong evidence that RNA changes in the brain are likely the cause of ASD.
A recent study published in BME Frontiers developed an AI-based approach that rapidly transforms autofluorescence images into virtual histological images for accurate HER2 assessment. This computational staining process takes only a few minutes per sample and does not require expensive facilities or toxic chemicals.
A deep learning algorithm trained on adult populations shows improved sensitivity for diagnosing thyroid nodules in children, with higher accuracy than traditional ACR TI-RADS. The study suggests the potential benefits of this new approach for evaluating thyroid nodules in younger patients.
The HOMED project developed a full panel of scientific knowledge and practical solutions for managing emerging native and non-native forest pests and pathogens threatening European forests. The project's results include over 60 scientific publications, policy briefs, practice abstracts, educational videos, and tools.
A new study in The American Journal of Pathology found that inhibiting neuropilin 2 in smooth muscle can enhance contraction and motility of the distal colon. This could provide opportunities to regulate smooth muscle activity in patients with colonic disorders.
A new AI algorithm, SISH, uses self-supervised learning to find similar cases in large pathology image repositories, assisting with the diagnosis of rare diseases. The algorithm outperforms other methods in retrieving interpretable disease subtype information from vast databases, even at large scales.
A Kessler Foundation study found a relationship between rate of cognitive fatigue in MS and microstructural brain changes, particularly in white matter tracts and basal ganglia. The study's findings hold promise for advancing clinical interventions for disabling fatigue.
The analysis found that inadequate margin widths may result in higher risks of distant recurrence and breast cancer mortality, as well as increased local recurrence. The researchers recommend a minimum tumour free distance of 1mm from the margin for optimal oncological outcomes.
Researchers developed an algorithm to identify different regions within tumors using nearly 6,500 digital slide images. The algorithm can predict recurrence-free survival and help guide therapy for patients with colon cancer.
The Association for Molecular Pathology has published consensus recommendations for clinical TPMT and NUDT15 genotyping assays, promoting standardization across laboratories. The report identifies a minimum set of alleles to include in clinical tests, enabling healthcare professionals to provide high-quality patient care.
The UTHSC team will examine the process biochemically using baker's yeast as a genetic model to determine how mTORC1 regulates the epigenome. Understanding these biochemical mechanisms may identify novel targets for anticancer drug development and treat neurodevelopmental disorders.
Researchers have developed a novel approach to engineering live bacterial therapeutics by using native microbes that can survive in the gut. This method overcomes previous limitations of introducing engineered bacteria into the gut, demonstrating potential for long-term therapy and reversal of disease pathologies in mouse models.
A retrospective study found that patients with multiple architectural distortions on digital breast tomosynthesis were more likely to have high-risk pathology, but not significantly different frequencies of malignancy. Biopsy of all areas may be warranted for these patients.
A new study published in JAMA Internal Medicine found that an alert about a shortage of blood test tubes led to a significant reduction in unnecessary blood clotting tests. The study suggests that similar interventions could reduce low-value care and promote wise use of medical tests.
A study of 1,300 patients found most thyroid cancers are discovered in asymptomatic individuals, supporting the hypothesis of ongoing subclinical disease detection. The findings contradict the notion of a rising incidence of thyroid cancer.
Researchers discovered a new prion structure using electron microscopy, revealing key similarities and differences between distinct strains. This finding could lead to better understanding of how shape variations affect disease outcomes.
Researchers have identified a second gene, CLDN5, as responsible for AHC in two unrelated cases. The mutated protein disrupts the blood-brain barrier's integrity, leading to the condition's characteristic symptoms.
Researchers discovered that the process of hypercondensation, where DNA is compressed, relies on a second type of protamine, PRM2, which may be crucial for fertility. The study sheds light on the complex mechanism behind sperm development and could lead to new treatments for male infertility.
Researchers at the University of Illinois Urbana-Champaign have developed a low-cost ultrasound imaging method to study the relationship between Alzheimer's disease and the brain's vascular system. The technique, which provides high-resolution images of animal microvasculature, may aid in early detection of the disease.
Researchers at Johns Hopkins Kimmel Cancer Center developed a targeted immunotoxin that delivers into breast ducts, eliminating visible and invisible precancerous lesions in laboratory studies. The treatment showed strong cancer-killing effects in all cell lines and was well-tolerated in mouse models.
A prospective study compared CEM and MRI for NAT response assessment in patients with breast cancer. CEM yielded comparable assessments of lesion size and RECIST categories as MRI, but with lower sensitivity for pathologic complete response. Delayed CEM acquisition detected residual ductal carcinoma in situ (DCIS).
Researchers from China have developed a novel bioconjugate that can suppress the growth of K-Ras mutant pancreatic tumors. The conjugate, which targets folate receptors and macropinocytosis, was found to be highly cytotoxic and effective at suppressing tumor growth.
A recent study at UC San Francisco discovered that fragmented tau protein in diseased neurons could be a new target for existing drugs, potentially improving diagnosis and treatment of Alzheimer's. The researchers found that measuring the fragments in cerebrospinal fluid may help distinguish between different forms of dementia.
A study by Kyushu University has identified biomarkers in blood samples that distinguish healthy individuals from Hikikomori patients and predict the severity of the condition. Key findings include elevated ornithine levels, lower bilirubin levels, and higher long-chain acylcarnitine levels in patients.
A single-center study found lower pneumonia frequency and severity in fully vaccinated patients compared to unvaccinated patients. The study included 467 patients who underwent chest CT during hospitalization for symptomatic COVID-19, with significant reductions in pneumonia frequency and severity observed in those fully vaccinated.
Researchers at Brigham and Women's Hospital studied mRNA vaccine safety in pregnant women, finding no Spike protein expression in placentas. The study provides further evidence of mRNA vaccine safety, supporting expanded vaccination efforts for vulnerable populations.
Researchers create a new method for detecting diagnostic markers of epilepsy using EEG and MEG, enabling precise localisation of epileptogenic cortical structures. The biomimetic algorithm improves the effectiveness of neurosurgical interventions for epilepsy patients with resistant treatment.
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.
CHOP researchers developed CancerVar, an artificial intelligence-empowered platform for interpreting somatic cancer mutations. The tool provides standardized procedures for assessing the clinical impacts of over 13 million somatic cancer mutations.
Four rapid antigen tests were found to be less sensitive to the Delta variant than the Omicron strain. The study suggests that continuous assessment and updating are needed for these tests to remain effective in detecting COVID-19 infections. Continuous improvement is necessary to ensure they meet public health testing goals.
Recent studies found that pathologists perceive an overdiagnosis of melanoma, with many diagnosing cases as non-invasive melanoma despite variability in diagnoses. A study involving over 100 dermatopathologists showed a majority agree on the issue, but awareness may not be enough to reduce overdiagnosis.
A study led by Kobe University researchers found that idiopathic autism is caused by epigenetic abnormalities in hematopoietic cells, leading to immune dysregulation and brain-gut axis disorders. The study used BTBR mice as a model and identified histone deacetylase HDAC1 as a common mechanism underlying these pathologies.
Researchers have identified a new mechanism involving the oxidation of cysteines in titin protein that modulates cardiac stiffness and dynamics. This discovery sheds light on how the heart adapts to various situations and responds to oxidative balance disorders.
High blood pressure can cause long-lasting changes in the structure of vascular smooth muscle cells, stiffening arterial walls and increasing the risk of cerebrovascular disease. Researchers found that a signaling pathway triggered by E–T coupling is involved in this process, leading to inflammation and vascular remodeling.
Researchers found a 1000-fold increase in skin microbiota and larger lesions after smallpox vaccination, but all groups had equal protection from re-infection. The study suggests that manipulating commensal skin microbiota might enhance the efficacy of intradermal vaccines.
A new study has found a clear link between silica exposure and severe black lung disease in contemporary coal miners. The researchers attributed the resurgence of progressive massive fibrosis to changes in mining technology, such as mechanized coal extraction devices introduced in the 1950s.
Adding immunotherapy to chemotherapy before surgery reduced the risk of recurrence and death in lung cancer patients by 37%, according to a phase III trial. The treatment also led to a nearly twelvefold increase in pathological complete response, with 24% of patients achieving no active cancer remaining when the tumor was removed.
Researchers analyzed an abnormal trackway of six theropod dinosaur footprints in Spain, dating to around 129 million years ago. The tracks show evidence of an injured innermost toe and abnormal gait as the dinosaur compensated for its injury.
A new study introduces a commercially available test that enables laboratories with real-time PCR capabilities to detect known SARS-CoV-2 variants. The assay is faster and more cost-effective than traditional sequencing methods, allowing for more widespread tracking of circulating variants.
Researchers developed a new framework to extract meaningful vectorial metrics from Mueller matrix elements, providing insights into exotic material characterization and precise cancer boundary detection. The framework establishes a universal metric for calculating different physical properties of target objects.
A study published in JAMA Network Open found that half of all women will experience at least one false positive mammogram over a decade of annual breast cancer screening with 3D mammography. The risk of false positives is lower for women screened every other year, and non-dense breasts also show a lower false positive risk.
A Spanish national registry study found that over half of diagnosed lung cancer patients undergo biomarker testing, with a significant increase over the last five years. Nearly half of patients with positive test results received targeted treatment.
A pilot study suggests that an artificial intelligence system called CRANE can help cardiac experts diagnose rejection and estimate its severity more accurately. This could lead to faster diagnosis and treatment, as well as reduced variability in expert agreement, ultimately improving heart transplant outcomes.
A recent study found that mutant clones expand in the normal endometrium through a rhizome structure, which arises from a common ancestral clone. This expansion increases the risk of developing endometriosis and endometrial cancer. The study proposes a new model of clonal expansion in the normal endometrium.
Scientists identified precise diagnostic criteria for headaches arising from ischemic stroke, which can help predict, prevent, and treat the condition. The study found that certain types of headaches, such as new-type and altered-characteristic headaches, were more common in patients with stroke.
The Experimental Biology (EB) 2022 meeting explored diverse topics such as race and mental health in STEM, artificial intelligence in computational pathobiology and new insights at the leading edge of circadian physiology. Highlights from EB 2022 include symposia on GPCRs and G-protein signaling.
A new DNA test has been developed to identify a range of hard-to-diagnose neurological and neuromuscular genetic diseases quicker and more accurately than existing tests. The test uses Nanopore sequencing technology to scan for abnormally long repeats within patients' genes, which are the hallmarks of disease.
A multicenter study validates the accuracy and reliability of NS-RADS for classifying and grading peripheral neuropathies, with high interrater agreement across different reader experience levels. The study shows promising results for routine practice, suggesting NS-RADS as a standardized guideline for reporting peripheral neuropathies.
A study published in PLOS Medicine found that the COVID-19 pandemic led to an increase in the uptake of childhood immunizations in Scotland. Researchers analyzed data from over 439,000 vaccine invitations and found higher immunization rates during lockdown periods compared to pre-pandemic years.
The American Roentgen Ray Society recognizes Drs. Nguyen, Beheshtian, Harfouch, and Hashiba for their outstanding research and education contributions to the field of radiology. The awards honor the candidates' scientific merit and potential impact on imaging and allied sciences research.
The first US peer-reviewed study on omicron patient outcomes found significant differences in infection behavior. Ominron patients are significantly younger, have increased vaccine breakthrough rates, and are less likely to be hospitalized compared to patients with alpha or delta variants.
A retrospective study found that the upgrade rate of architectural distortion on digital breast tomosynthesis (DBT) to malignancy was 10.2% for radial scars without atypia and 28.2% for those with atypia. Imaging surveillance is considered an alternative to surgery for these cases.
The Experimental Biology 2022 meeting will feature renowned speakers, including Nobel laureates and research pioneers, who will present the latest findings and trends in life sciences. Keynote presentations include talks on vaccine science, navigation, RNA splicing, pharmacology, and cancer classification.
Researchers discovered increased activity in the hippocampus during anesthesia and sleep, preceding Alzheimer's symptoms by years. This abnormality may enable early diagnosis and treatment of the disease.
The inaugural WHO classification of childhood tumors presents a single, updated compendium of all tumor entities in childhood or adolescence, divided by organ sites. This classification incorporates traditional morphology, immunohistochemistry, and molecular characteristics to provide essential criteria for definition of tumor types.