2,632,764 results match your criteria: "Department of Pathology; Princess Margaret Hospital[Affiliation]"

Introduction: Papillary thyroid carcinoma (PTC) has an excellent prognosis, but few cases are treatment-resistant. To check the applicability of combined and MEK-targeted therapy, the current study correlated with the MAPK pathway activation status in a cohort of PTCs. The prognostic relevance of and the usability of immunohistochemistry (IHC) for detecting the mutation were also assessed.

View Article and Find Full Text PDF

A CT Radiologic Assessment of the Incidence of Cochlear-Facial Dehiscence and the Thickness of Bone between the Cochlea and Facial Nerve among Normal Temporal Bones.

J Neurol Surg B Skull Base

February 2025

Department of Head and Neck Surgery, David Geffen School of Medicine, University of California, Los Angeles, California, CA 90095, United States.

Cochlear-facial dehiscence (CFD) is a relatively new diagnosis which occurs when the bony partition between the labyrinthine segment of the facial nerve and the cochlea is dehiscent. This is considered one of several third window lesions which produce varying degrees of auditory and vestibular symptoms. Imaging studies have identified a consistently higher incidence of CFD when compared with the only histopathologic study present in the literature.

View Article and Find Full Text PDF

 Endonasal odontoidectomy (EO) is a procedure for addressing compressive pathology of the craniovertebral junction. While EO has been well established in adults, its complications and cervical fusion practices are less understood in pediatric patients, despite differences in sinonasal and craniocervical anatomy. This study summarizes and compares EO complications and need for cervical fusion in pediatric and adult patients.

View Article and Find Full Text PDF

In the last 10 years the field of prenatal diagnosis has been significantly reshaped followed by the implementation of noninvasive prenatal cell-free DNA (cfDNA) testing methodologies in clinical practice. Based on a superior performance and higher sensitivity and specificity than the former practice of biochemical markers screening, the American College of Obstetricians and Gynecologists and American College of Medical Genetics and Genomics recommend noninvasive prenatal cfDNA screening for trisomy 21, 18, 13, and sex chromosome aneuploidy to all pregnant people. While cfDNA screening is helpful in risk assessment for the most common autosomal trisomies, cfDNA also provides information about fetal sex chromosomes.

View Article and Find Full Text PDF

possesses promising flavonoid secondary metabolites. However, translation of these compounds into clinical practice for neurological disease treatment is halted as the toxicity and safety profile of the plant extracts are yet to be determined. This study was conducted to assess the acute oral toxicity and subacute neurotoxicity that could be imposed by the flavonoid-enriched fraction (FEF) extracted from leaves, by strictly following the procedures set in Organization for Economic Co-operation and Development (OECD) Guidelines No.

View Article and Find Full Text PDF

Clinical utility of myocardial work assessment in arterial hypertension and cardiovascular diseases.

Minerva Cardiol Angiol

January 2025

Department of Anatomy and Embryology, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, the Netherlands.

In clinical practice, ventricular ejection fraction (EF) and global longitudinal strain (GLS) are the most often used parameters for evaluating left ventricular systolic function, despite the impact that variable loading conditions have. Alternatively, the myocardial efficiency (ME) of the heart, encompassing cardiac energy formation and dissipation, along with myocardial oxygen consumption (MVO2), is a useful surrogate for assessing myocardial work (MW), a parameter correlated with the pressure-strain loop (PSL), arterial pressure, and cardiac output (CO). This refinement proves especially practical in defining cardiac work across various clinical contexts, including arterial hypertension and heart failure (HF), the primary conditions associated with cardiovascular mortality.

View Article and Find Full Text PDF

Report of a Rare Syndromic Retinal Dystrophy: Asphyxiating Thoracic Dystrophy (Jeune Syndrome).

Turk J Ophthalmol

January 2025

İstanbul University-Cerrahpaşa, Cerrahpaşa Faculty of Medicine, Department of Ophthalmology, İstanbul, Türkiye.

Jeune syndrome (JS), first described by Jeune as asphyxiating thoracic dystrophy, is an autosomal recessive osteochondrodysplasia with characteristic skeletal abnormalities and variable renal, hepatic, pancreatic, and ocular complications. Approximately 1 in every 100,000 to 130,000 babies is born with JS. Most patients with JS have respiratory distress due to inadequate lung development and many lose their lives due to respiratory failure.

View Article and Find Full Text PDF

Background: Metastatic castration-resistant prostate cancer (mCRPC) treatment is advancing yet Nordic, real-world evidence for its use is scarce. In this population-based cohort study, we describe characteristics of patients with mCRPC, and their treatment patterns and survival outcomes in Finland.

Methods: Incident patients with mCRPC diagnosed during 2013-2021 were identified from data lakes in two large and representative, Finnish hospital districts, and linked to data on drug purchases and causes of death from national registries.

View Article and Find Full Text PDF

Objective: To describe the real-world clinical impact of a commercially available plasma cell-free DNA metagenomic next-generation sequencing assay, the Karius test (KT).

Methods: We retrospectively evaluated the clinical impact of KT by clinical panel adjudication. Descriptive statistics were used to study associations of diagnostic indications, host characteristics, and KT-generated microbiologic patterns with the clinical impact of KT.

View Article and Find Full Text PDF

Background: Liver cirrhosis complicated by portal vein thrombosis (PVT) is a fatal complication with no specific manifestations but often misdiagnosed, it crucially increases the mortality worldwide. This study aimed to identify risk factors and establish a predictive model for diagnosis of venous thrombosis clinical by routine blood tests and endoscopic characteristics.

Methods: Patients from Gansu Provincial Hospital from October 2019 to December 2023 were enrolled.

View Article and Find Full Text PDF

Compared to primary pancreatic islets, insulinoma cell-derived 3D pseudoislets offer a more accessible, consistent, renewable, and widely applicable model system for optimization and mechanistic studies in type 1 diabetes (T1D). Here, we report a simple and efficient method for generating 3D pseudoislets from MIN6 and NIT-1 murine insulinoma cells. These pseudoislets are homogeneous in size and morphology (~150 µm), exhibit functional glucose-stimulated insulin secretion (GSIS) up to 18 days (NIT-1) enabling long-term studies, are produced in high yield [>35,000 Islet Equivalence from 30 ml culture], and are suitable for both and studies, including for encapsulation studies.

View Article and Find Full Text PDF

Infectious bronchitis virus (IBV) is known to cause significant alterations in tracheal microbial flora in broiler chickens 5 days post-infection (dpi) and our focus is to understand the changes in both respiratory and gastrointestinal microbiome in broilers over a period of time following IBV infection. A study was conducted to characterize the tracheal and cecal microbiome in IBV infected and control broiler chickens at 6, 9 and 15 dpi. IBV genome in trachea, lung and cecal tonsils could be observed in the infected group at all the time points.

View Article and Find Full Text PDF

Application of elastic net for clinical outcome prediction and classification in progressive supranuclear palsy: A multicenter cohort study.

Parkinsonism Relat Disord

January 2025

Department of Neurology, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, South Korea. Electronic address:

Background: Previous studies have used machine learning to identify clinically relevant atrophic regions in progressive supranuclear palsy (PSP). This study applied Elastic Net (EN) in PSP to uncover key atrophic patterns, offering a novel approach to understanding its pathology.

Methods: This study included baseline data from 74 patients with PSP enrolled in the Study of Comprehensive ANd multimodal marker-based cohort of PSP (SCAN-PSP, NCT05579301) in Seoul between January 2022 and August 2023.

View Article and Find Full Text PDF

Membrane-associated RING-CH8 (MARCH8) is a member of the recently discovered MARCH family of ubiquitin ligases. MARCH8 has been shown to participate in immune responses. However, the role of MARCH8 in prognosis and immunology in human cancers remains largely unknown.

View Article and Find Full Text PDF

Background: For radiotherapy of head and neck cancer (HNC) magnetic resonance imaging (MRI) plays a pivotal role due to its high soft tissue contrast. Moreover, it offers the potential to acquire functional information through diffusion weighted imaging (DWI) with the potential to personalize treatment. The aim of this study was to acquire repetitive DWI during the course of online adaptive radiotherapy on an 1.

View Article and Find Full Text PDF

Comprehensive analysis of the interaction microbiome and prostate cancer: an initial exploration from multi-cohort metagenome and GWAS studies.

J Transl Med

January 2025

Department and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095 Jiefang Avenue, Wuhan, Wuhan, 430030, P.R. China.

Introduction: Prostate cancer is one of the most common cancers in the United States with a high mortality rate. In recent years, the traditional opinion about prostate microbiome was challenged. Although there still are some arguments, an escalating number of researchers are shifting their focus toward the microbiome within the prostate tumor environment.

View Article and Find Full Text PDF

Background: Closed head injury (CHI) provokes a prominent neuroinflammation that may lead to long-term health consequences. Microglia plays pivotal and complex roles in neuroinflammation-mediated neuronal insult and repair following CHI. We previously reported that induced neural stem cells (iNSCs) can block the effects of CXCL12/CXCR4 signaling on NF-κB activation in activated microglia by CXCR4 overexpression.

View Article and Find Full Text PDF

Alpha/beta values in pediatric medulloblastoma: implications for tailored approaches in radiation oncology.

Radiat Oncol

January 2025

Department of Radiotherapy and Radiooncology, Medical Faculty, Heinrich Heine University, Moorenstr. 5, 40225, Dusseldorf, Germany.

Background: Medulloblastoma is the most common malignant pediatric brain tumor, typically treated with normofractionated craniospinal irradiation (CSI) with an additional boost over about 6 weeks in children older than 3 years. This study investigates the sensitivity of pediatric medulloblastoma cell lines to different radiation fractionation schedules. While extensively studied in adult tumors, these ratios remain unknown in pediatric cases due to the rarity of the disease.

View Article and Find Full Text PDF

Background: Glioblastoma is the commonest malignant brain tumor and has a very poor prognosis. Reduced expression of the MGMT gene (10q26.3), influenced primarily by the methylation of two differentially methylated regions (DMR1 and DMR2), is associated with a good response to temozolomide treatment.

View Article and Find Full Text PDF

Background: The significance of the controlling nutritional status (CONUT) score in predicting the prognostic outcomes of diffuse large B-cell lymphoma (DLBCL) has been widely explored, with conflicting results. Therefore, the present meta-analysis aimed to identify the prognostic significance of the CONUT in DLBCL by aggregating current evidence.

Methods: The Web of Science, PubMed, Embase, CNKI and Cochrane Library databases were searched for articles from inception to October 15, 2024.

View Article and Find Full Text PDF

N7-methylguanosine modification in cancers: from mechanisms to therapeutic potential.

J Hematol Oncol

January 2025

Department of Gynecology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.

N7-methylguanosine (m7G) is an important RNA modification involved in epigenetic regulation that is commonly observed in both prokaryotic and eukaryotic organisms. Their influence on the synthesis and processing of messenger RNA, ribosomal RNA, and transfer RNA allows m7G modifications to affect diverse cellular, physiological, and pathological processes. m7G modifications are pivotal in human diseases, particularly cancer progression.

View Article and Find Full Text PDF

Background: Radiotherapy as a complement or an alternative to neurosurgery has a central role in the treatment of skull base grade I-II meningiomas. Radiotherapy techniques have improved considerably over the last two decades, becoming more effective and sparing more and more the healthy tissue surrounding the tumour. Currently, hypo-fractionated stereotactic radiotherapy (SRT) for small tumours and normo-fractionated intensity-modulated radiotherapy (IMRT) or proton-therapy (PT) for larger tumours are the most widely used techniques.

View Article and Find Full Text PDF

Background: Genital inflammation increases HIV susceptibility and is associated with the density of pro-inflammatory anaerobes in the vagina and coronal sulcus. The penile urethra is a critical site of HIV acquisition, although correlates of urethral HIV acquisition are largely unknown. While Streptococcus mitis is a consistent component of the urethral flora, the presence of Gardnerella vaginalis has been linked with prior penile-vaginal sex and urethral inflammation.

View Article and Find Full Text PDF

The generation of retinal models from human induced pluripotent stem cells holds significant potential for advancing our understanding of retinal development, neurodegeneration, and the in vitro modeling of neurodegenerative disorders. The retina, as an accessible part of the central nervous system, offers a unique window into these processes, making it invaluable for both study and early diagnosis. This study investigates the impact of the Frontotemporal Dementia-linked IVS 10 + 16 MAPT mutation on retinal development and function using 2D and 3D retinal models derived from human induced pluripotent stem cells.

View Article and Find Full Text PDF

Extracellular matrix stiffness regulates colorectal cancer progression via HSF4.

J Exp Clin Cancer Res

January 2025

Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.

Background: Colorectal cancer (CRC) has high incidence and mortality rates, with severe prognoses during invasion and metastasis stages. Despite advancements in diagnostic and therapeutic technologies, the impact of the tumour microenvironment, particularly extracellular matrix (ECM) stiffness, on CRC progression and metastasis is not fully understood.

Methods: This study included 107 CRC patients.

View Article and Find Full Text PDF