1,598 results match your criteria: "Pathology Center[Affiliation]"

Background: Paclitaxel is an antineoplastic agent used to treat breast, lung, endometrial, cervical, pancreatic, sarcoma, and thymoma cancer. However, drugs that induce, inhibit, or are substrates of cytochrome P450 (CYP) isoenzymes 2C8 or 3A4 may alter the metabolism of paclitaxel, potentially impacting its effectiveness. The purposes of this study are to provide an overview of paclitaxel use, identify potential drugs that interact with paclitaxel, and describe their clinical manifestations.

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PER3 promoter hypermethylation correlates to the progression of pan-cancer.

Clin Epigenetics

October 2024

Clinical Research Center (CRC), Medical Pathology Center (MPC), Cancer Early Detection and Treatment Center (CEDTC) and Translational Medicine Research Center (TMRC), Chongqing University Three Gorges Hospital, School of Medicine, Chongqing University, Wanzhou District, Chongqing, 404100, China.

Background: Malignant cells exhibit reduced period circadian regulator 3 (PER3) expression. However, the underlying mechanisms of variations in PER3 expression in cancers and the specific function of PER3 in tumor progression remain poorly understood.

Results: We explored multiple public databases, conducted bioinformatics analyses, and performed in vitro and in vivo experiments for validation.

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The FGFR3::TACC3 fusion has been reported in subsets of diverse cancers including urothelial and squamous cell carcinomas (SCC). However, the morphology of FGFR3::TACC3-positive head and neck carcinomas has not been well studied and it is unclear if this fusion represents a random event, or if it might characterize a morphologically distinct tumor type. We describe nine FGFR3::TACC3 fusion-positive head and neck carcinomas affecting six males and three females aged 38 to 89 years (median, 59).

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Article Synopsis
  • Follicular thyroid carcinoma (FTC) is a common thyroid cancer with a higher risk of spreading than other types, making accurate diagnosis during surgery difficult due to the limitations of intraoperative frozen section (IOFS).
  • Researchers created a predictive model based on data from 493 patients that identifies five key factors linked to FTC: nodule size, thyroglobulin levels, hypoechogenicity, margins, and halo thickness.
  • The model showed strong performance with an AUC of 0.83 in the training set, providing effective predictions that help surgeons assess and decide on the appropriate level of surgery for suspicious thyroid nodules.
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Late-onset renal TMA and tubular injury in cobalamin C disease: a report of three cases and literature review.

BMC Nephrol

October 2024

Renal Division, Department of Medicine, Peking University First Hospital, No. 8 Xishiku St., Xicheng District, Beijing, 100034, China.

Article Synopsis
  • Mutation of the MMACHC gene causes cobalamin C disease (cblC), leading to symptoms like metabolic disorders and kidney issues, including thrombotic microangiopathy (TMA).
  • Three teenage patients were diagnosed with renal complications from cblC, showing symptoms such as hematuria and hypertension, with tests confirming elevated homocysteine and kidney damage.
  • Early diagnosis and treatment with hydroxocobalamin, betaine, and L-carnitine significantly improved their condition, underscoring the need for awareness of cblC in patients with unexplained kidney injury.
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Background & Aims: Unlike protein-coding genes, the majority of human long non-coding RNAs (lncRNAs) lack conservation based on their sequences, posing a challenge for investigating their role in a pathophysiological context for clinical translation. This study explores the hypothesis that non-conserved lncRNAs in human and mouse livers may share similar metabolic functions, giving rise to functionally conserved lncRNA metabolic regulators (fcLMRs).

Methods: We developed a sequence-independent strategy to select putative fcLMRs, and performed extensive analysis to determine the functional similarities of putative human and mouse LMR pairs (h/mLMRs).

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Genetic Profiling of Non-Small Cell Lung Cancer in Moroccan Patients by Targeted Next-Generation Sequencing.

Technol Cancer Res Treat

October 2024

Royal School of Military Health Service, Sequencing Unit, Laboratory of Virology, Center of Virology, Infectious and Tropical Diseases, Mohammed V Military Instruction Hospital, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Rabat, Morocco.

Article Synopsis
  • This study analyzed genetic changes in non-small cell lung cancer (NSCLC) patients from Morocco and compared them to data from the Cancer Genome Atlas (TCGA).
  • Out of 76 tissue samples analyzed, 70 had genetic alterations, with 234 changes identified across 18 genes that could influence targeted therapy decisions.
  • Significant differences were found in the prevalence of certain mutations between Moroccan patients and TCGA data, reinforcing the importance of next-generation sequencing for effective diagnosis and treatment planning in NSCLC.
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  • The study focuses on specific clusters of CD8+ T cells, categorized as CD8-NOS2+COX2+ and CD8-NOS2-COX2+, which play a significant role in the immune response to tumors.
  • These unique cellular environments affect the spatial structure of CD8+ T cell interactions within tumors and can influence patient outcomes.
  • The findings suggest that existing treatments, like NOS inhibitors and NSAIDs, could potentially target these cellular neighborhoods to improve cancer therapy.
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  • The study aimed to evaluate how rheumatoid arthritis (RA) affects the histopathological features and recurrence risk in patients with chronic rhinosinusitis with nasal polyps (CRSwNP) following surgery.
  • A total of 517 CRSwNP patients were analyzed, revealing that those with RA had higher recurrence rates and eosinophil counts compared to non-RA patients, making RA a significant independent risk factor for recurrence.
  • The findings highlight the need for customized treatment approaches for CRSwNP patients with RA to reduce recurrence risks and enhance clinical outcomes.
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Headphones over the cochlear-implant sound processor to replace direct audio input.

JASA Express Lett

September 2024

National Military Audiology and Speech Pathology Center, Walter Reed National Military Medical Center, Bethesda, Maryland 20889,

Psychoacoustic stimulus presentation to the cochlear implant via direct audio input (DAI) is no longer possible for many newer sound processors (SPs). This study assessed the feasibility of placing circumaural headphones over the SP. Calibration spectra for loudspeaker, DAI, and headphone modalities were estimated by measuring cochlear-implant electrical output levels for tones presented to SPs on an acoustic manikin.

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Postpartum Renal Cortical Necrosis: A Case Series.

Kidney Med

October 2024

Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China.

Rationale & Objective: Postpartum renal cortical necrosis (postpartum RCN) is a severe form of obstetric acute kidney injury. This study aimed to identify clinicopathologic features in Chinese postpartum RCN cases to determine how pathologic findings may contribute to the treatment and prognosis.

Study Design: Single-center, case series.

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We analyzed genomic data from the prostate cancer of African- and European American men to identify differences contributing to racial disparity of outcome. We also performed FISH-based studies of Chromodomain helicase DNA-binding protein 1 (CHD1) loss on prostate cancer tissue microarrays. We created CHD1-deficient prostate cancer cell lines for genomic, drug sensitivity and functional homologous recombination (HR) activity analysis.

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Currently, only 20% to 40% of patients with cancer benefit from immune checkpoint inhibitors. Understanding the mechanisms underlying the immunosuppressive tumor microenvironment (TME) and characterizing dynamic changes in the immunologic landscape during treatment are critical for improving responsiveness to immunotherapy. In this study, we identified JNK signaling in cancer-associated fibroblasts (CAF) as a regulator of the immunosuppressive TME.

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Article Synopsis
  • Sebaceous carcinoma is a type of skin cancer that's not very common, but it still has about 1,000 cases a year in the U.S., and scientists are trying to find better ways to tell it apart from non-cancerous skin growths.* -
  • Researchers studied the DNA and RNA of skin tumors from different hospitals to understand what makes these tumors different and how they develop.* -
  • They found specific changes in the tumors that could help doctors diagnose sebaceous carcinoma better, and they believe that new treatments, like using immunotherapy and targeting cholesterol production, might work well.*
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  • The study focused on how the small blood vessels in the intestines work, looking at differences based on mouse genes, sex, and gut bacteria.
  • Researchers used special tools to measure blood flow patterns in different mouse strains while also examining the effect of antibiotics on gut bacteria.
  • Results showed that genetics and sex influenced blood flow and gut bacteria, and antibiotics changed blood flow patterns, particularly in female mice.
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Identification of two molecularly and prognostically distinct subtypes in acral melanoma using network prediction method.

J Eur Acad Dermatol Venereol

September 2024

Department of Dermatology, Hunan Engineering Research Center of Skin Health and Disease, Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan, China.

Background: Acral melanoma, characterized by its aggressiveness and poor prognosis compared to other melanoma subtypes, poses significant challenges in clinical management. However, the molecular underpinnings driving the biological and clinical features of this disease remain poorly understood.

Objectives: In this study, our aim was to elucidate the molecular landscape and the correlation between subtypes and clinical features of acral melanoma.

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Approximately 90% of thyroid cancers are differentiated thyroid cancers (DTCs), originating from follicular epithelial cells. Out of these, 90% are papillary thyroid cancer (PTC), and 10% are follicular thyroid cancer (FTC). The standard care procedure for PTC includes surgery, followed by radioiodine (RAI) ablation and thyroid-stimulating hormone (TSH) suppressive therapy.

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Glucose metabolite methylglyoxal induces vascular endothelial cell pyroptosis via NLRP3 inflammasome activation and oxidative stress in vitro and in vivo.

Cell Mol Life Sci

September 2024

Basic Medicine Research Innovation Center for Cardiometabolic DiseasesMinistry of EducationLaboratory for Cardiovascular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan, China.

Methylglyoxal (MGO), a reactive dicarbonyl metabolite of glucose, plays a prominent role in the pathogenesis of diabetes and vascular complications. Our previous studies have shown that MGO is associated with increased oxidative stress, inflammatory responses and apoptotic cell death in endothelial cells (ECs). Pyroptosis is a novel form of inflammatory caspase-1-dependent programmed cell death that is closely associated with the activation of the NOD-like receptor 3 (NLRP3) inflammasome.

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Skin cutaneous melanoma (SKCM) is a highly fatal form of skin cancer that develops from the malignant transformation of epidermal melanocytes. There is substantial evidence linking autophagy to cancer etiology and immunotherapy efficacy. This study aimed to conduct a comprehensive analysis of autophagy-related genes (ARGs) using TCGA datasets and further explore the potential function of critical ARGs in SKCM progression.

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Article Synopsis
  • The study focuses on understanding the molecular changes in adenoma and carcinoma components of colorectal tumors to better grasp early cancer development.
  • Researchers analyzed genetic alterations in 46 cases of microsatellite-stable colorectal cancer using genome-wide methods, identifying two distinct subgroups based on the frequency of somatic copy number alterations (SCNAs).
  • Findings revealed that while both adenoma and carcinoma components shared common mutations, significant SCNAs and increased TP53 mutations were essential for the transition from adenoma to carcinoma within these tumors.
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The purpose of this experiment was to investigate how various fiber sources impact the performance, microbial population, and intestinal histology of Japanese quail that was performed in a completely randomized design for 42 days. The dietary treatments involved a fiber-free corn-soybean meal-based diet (control, CTL), and CTL with added levels of sunflower hulls (SFH) and sugar beet pulp (SBP) (20 and 40 g kg). Body weight gain (BWG) and feed intake (FI) were recorded weekly.

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SPP1 TAM Regulates the Metastatic Colonization of CXCR4 Metastasis-Associated Tumor Cells by Remodeling the Lymph Node Microenvironment.

Adv Sci (Weinh)

November 2024

Department of Dermatology, Hunan Engineering Research Center of Skin Health and Disease, Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.

Lymph node metastasis, the initial step in distant metastasis, represents a primary contributor to mortality in patients diagnosed with oral squamous cell carcinoma (OSCC). However, the underlying mechanisms of lymph node metastasis in OSCC remain incompletely understood. Here, the transcriptomes of 56 383 single cells derived from paired tissues of six OSCC patients are analyzed.

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