248,566 results match your criteria: "Experimental Surgery & Translational Research Center[Affiliation]"

Revealing the Complex Interaction of Noncoding RNAs, Sirtuin Family, and Mitochondrial Function.

J Gene Med

January 2025

Department of Pathophysiology, Sepsis Translational Medicine Key Laboratory of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, Hunan, China.

Mitochondria are key organelles that perform and coordinate various metabolic processes in the cell, and their homeostasis is essential for the maintenance of eukaryotic life. To maintain mitochondrial homeostasis and cellular health, close communication between noncoding RNAs (ncRNAs) and proteins is required. For example, there are numerous crosstalk between ncRNAs and the sirtuin (SIRT1-7) family, which is a group of nicotinamide adenine dinucleotides (NAD(+))-dependent Type III deacetylases.

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Neural invasion is a prognostic hallmark of pancreatic ductal adenocarcinoma (PDAC), yet the underlying mechanisms behind the disruption of perineural barriers and access of cancer cells into intrapancreatic nerves remain poorly understood. This study aimed to investigate the role of epithelial-mesenchymal transformation (EMT) in perineural epithelial cells during neural invasion.Histopathological analysis of human and murine primary tumors using perineurium-specific GLUT1 antibody revealed a reduction in perineural integrity, which positively correlated with the extent of neural invasion in human PDAC cases.

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Background: The question as to whether prolonged diagnosis-to-surgery intervals (DSIs) may compromise survival outcomes in patients with oral cavity squamous cell carcinoma (OCSCC) remains unanswered. This nationwide study was designed to address this issue.

Methods: We analyzed data from 26,214 patients with first primary OCSCC identified in the Taiwanese Cancer Registry Database between 2011 and 2021.

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Objective: To evaluate endoscopy for detection of epithelial remnants within the feline tympanic bulla following ventral bulla osteotomy (VBO) and to report the most likely locations within the bulla for epithelial remnants to occur.

Methods: This was a single-center experimental cadaveric study. 10 VBO procedures were performed by 5 board-certified surgeons in 5 feline cadavers.

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Targeted and untargeted urinary metabolomics of alkaptonuria patients using ultra high-performance liquid chromatography-tandem mass spectrometry.

J Pharm Biomed Anal

January 2025

Institute of Pharmaceutical Sciences, Pharmaceutical (Bio-)Analysis, University of Tübingen, Auf der Morgenstelle 8, Tübingen 72076, Germany. Electronic address:

Alkaptonuria (AKU) is a rare autosomal-recessive disease which is characterized through black urine and ochronosis. It is caused by deficiency of the enzyme Homogentisate 1,2-dioxygenase in the Phenylalanine/Tyrosine degradation pathway which leads to the accumulation of Homogentisic acid (HGA). Urine was provided by AKU patients and healthy controls.

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Protein homeostasis is crucial for maintaining cardiomyocyte (CM) function. Disruption of proteostasis results in accumulation of protein aggregates causing cardiac pathologies such as hypertrophy, dilated cardiomyopathy (DCM), and heart failure. Here, we identify ubiquitin-specific peptidase 5 (USP5) as a critical determinant of protein quality control (PQC) in CM.

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Interpretation of Viscoelastic Hemostatic Assays in Cardiac Surgery Patients: Importance of Clinical Context.

Anesth Analg

January 2025

From the Department of Anesthesiology, Amsterdam University Medical Center, University of Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands.

Background: Rotational thromboelastometry (ROTEM) is widely used for point-of-care coagulation testing to reduce blood transfusions. Accurate interpretation of ROTEM data is crucial and requires substantial training. This study investigates the inter- and intrarater reliability of ROTEM interpretation among experts and compares their interpretations with a ROTEM-guided algorithm.

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Corneal injuries are common in human and veterinary ophthalmology. There are many studies which have investigated the treatment of corneal epithelial defects. This study aimed to investigate the effects of Neutral Protamine Hagedorn (NPH) insulin as an ointment for wound healing in experimental corneal defects.

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Background: Chemotherapy-induced peripheral neuropathy (CIPN) and its associated pain negatively affect patient outcomes and quality of life (QoL). The two-part MiroCIP study included interventional and prospective observational studies. Here, we report the latter, describing CIPN incidence, risk factors, and outcomes.

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Clinical study on low-energy semiconductor laser treatment in the promotion of wound healing after maxillofacial fracture surgery.

Hua Xi Kou Qiang Yi Xue Za Zhi

February 2025

State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Engineering Research Center of Oral Translational Medicine, Ministry of Education & National Engineering Laboratory for Oral Regenerative Medicine &Dept. of Trauma and Plastic Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.

Objectives: This study aims to evaluate the clinical effect of low-energy semiconductor laser treatment on the promotion of wound healing after maxillofacial fracture surgery.

Methods: A prospective randomized controlled study was conducted. Patients with maxillofacial fractures who were hospitalized in the Department of Trauma and Plastic Surgery, West China Hospital of Stomatology, Sichuan University, from August 2021 to June 2023 were selected as the study subjects and randomly divided into experimental and control groups.

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The importance of preclinical models for cholangiocarcinoma drug discovery.

Expert Opin Drug Discov

January 2025

Center of Physiology, Pathophysiology and Biophysics, Institute of Physiology and Pathophysiology, Paracelsus Medical University, Salzburg, Austria.

Introduction: Biliary tract cancer (BTC) comprises a clinically diverse and genetically heterogeneous group of tumors along the intra- and extrahepatic biliary system (intrahepatic and extrahepatic cholangiocarcinoma) and gallbladder cancer with the common feature of a poor prognosis, despite increasing molecular knowledge of associated genetic aberrations and possible targeted therapies. Therefore, the search for even more precise and individualized therapies is ongoing and preclinical tumor models are central to the development of such new approaches.

Areas Covered: The models described in the current review include simple and advanced in vitro and in vivo models, including cell lines, 2D monolayer, spheroid and organoid cultures, 3D bioprinting, patient-derived xenografts, and more recently, machine-perfusion platform-based models of resected liver specimens.

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In chronic lymphocytic leukemia, the reliability of next-generation sequencing (NGS) to detect variants ≤10% allelic frequency (low-VAF) is debated. We tested the ability to detect 23 such variants in 41 different laboratories using their NGS method of choice. The sensitivity was 85.

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Introduction: Validated models describing the biomechanics of tooth extraction are scarce. This study seeks to perform experimental and numerical characterization of vertical tooth extraction biomechanics in swine incisors with imposed vertical extraction loads. Imaging analysis related mechanical outcomes to tooth geometry and applied loading rate.

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Object: We aim to explore the immunomodulatory properties of T cells on different titanium nanotubes and the key immunological factors involved in this process.

Methods: Transcriptome data from GEO database of healthy people and healthy implants were used to analyze cell infiltration and factor distribution of adaptive immune using bioinformatics tools. T cells from activated rat were cultured on titanium nanotubes that were prepared by anodization with different diameters (P-0, NT15-30 nm, NT40-100 nm, NT70-200 nm).

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Impact of Organ Donor Pretreatment With Anti-Thymocyte Globulin in a Murine Model of Allogenic Kidney Transplantation.

Transpl Int

January 2025

Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department for General and Visceral Surgery, Berlin, Germany.

Kidney transplantation is the treatment of choice for end-stage organ failure. To improve transplantation outcomes, particularly of "marginal" organs from extended criteria donors (ECD), attempts have been made to therapeutically modulate donor or graft pre-transplantation. Anti-thymocyte globulin (ATG) has a history as lymphocyte-depleting, immunosuppressive drug for treating rejection episodes post transplantation.

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Background: Although post-transplant diabetes mellitus (PTDM) is a common complication after kidney transplantation, there are few data on prevention, optimal screening, and treatment strategies.

Methods: The European Renal Association's DESCARTES working group distributed a web-based survey to European transplant centres to gather information on risk assessment, screening procedures, and management practices for preventing and treating PTDM in kidney transplant recipients.

Results: Answers were obtained from 121/241 transplant centres (50%) across 15 European countries.

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Background: Multiple endocrine neoplasia type 2 syndrome (MEN2) is a hereditary disease resulting from mutations of the rearranged during transfection (RET) protooncogene subclassified into MEN2A [medullary thyroid carcinoma (MTC), pheochromocytoma, and primary hyperparathyroidism] and MEN2B (MTC, pheochromocytoma, Marfanoid habitus, mucous neuromas, and intestinal ganglioneuromatosis). Prophylactic thyroidectomy is recommended in RET-mutated patients. The age at which it should be performed depends on the type and aggressiveness of the mutation.

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Introduction: Salivary Lactate Dehydrogenase (sLDH) levels seem to be higher in patients with Oral Squamous Cell Carcinoma (OSCC) and Oral Potentially Malignant Disorders (OPMD) than a control group (CG).

Methods: Case-control study. Patients with OPMD [oral leukoplakia (OL) and oral lichen planus (OLP)] and OSCC who attended two services in Spain were selected.

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Tertiary hyperparathyroidism is characterized by hypercalcemia resulting from autonomous parathyroid hormone production and usually occurs after a prolonged period of secondary hyperparathyroidism. This condition can be a complication of X-linked hypophosphatemia (XLH), a rare genetic disease characterized by renal phosphate loss and consequent hypophosphatemia. Parathyroidectomy is considered the first-line therapy but surgical intervention can be complicated by hungry bone syndrome.

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Cost-Benefit Analysis of in vivo Reflectance Confocal Microscopy for Melanoma Diagnosis in a Real-World Clinical Setting.

Risk Manag Healthc Policy

January 2025

Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Dermatology Clinic, Sapienza University of Rome, Rome, Italy.

Background: In a recent prospective, multicenter, two-arm randomized controlled trial (RCT), we demonstrated that adjunctive reflectance confocal microscopy (RCM) in routine clinical practice provides clinical benefits, including safe melanoma detection and a 43.3% reduction in the number needed to excise (NNE).

Methods: A cost-benefit analysis was conducted based on NNEs for standard care (5.

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Background: Magnetic resonance (MR) diffusion-derived 'vessel density' (DDVD) is calculated according to: DDVD = Sb0/ROI - S/ROI, where S and S refer to the tissue signal when -value is 0 or 2 s/mm. S and ROI can also be approximated by other low -values diffusion-weighted imaging (DWI). This study investigates the influence of the second motion probing gradient -value and T2 on DDVD calculations of the liver, spleen, and liver simple cyst.

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Meeting report - Alpine desmosome disease meeting 2024: advances and emerging topics in desmosomes and related diseases.

J Cell Sci

January 2025

Institute of Anatomy and Experimental Morphology, Center for Experimental Medicine, University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany.

Desmosomes are adhesive cell contacts abundant in tissues exposed to mechanical strain, such as the stratified and simple epithelia of the epidermis and mucous membranes, as well as the myocardium. Besides their role in mechanical cell cohesion, desmosomes also modulate pathways important for tissue differentiation, wound healing and immune responses. Dysfunctional desmosomes, resulting from pathogenic variants in genes encoding desmosomal components, autoantibodies targeting desmosomal adhesion molecules or inflammation, cause the life-threatening diseases arrhythmogenic cardiomyopathy and pemphigus and contribute to the pathogenesis of inflammatory bowel diseases.

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Purpose: To assess the safety and efficacy of a modified suprachoroidal silicone tube (SST) shunt in patients with primary open-angle glaucoma (POAG) and pseudo-exfoliative glaucoma (PXG) in this experimental study.

Methods: In this single-center, retrospective longitudinal data analysis 66 eyes of 59 patients having POAG and PXG were included and treated with modified SST shunt in combination with cataract or as a stand-alone procedure. Pre- and postoperative intraocular pressure (IOP), best corrected visual acuity (BCVA), C/D ratio and ocular adverse events (AEs) were assessed in all participants.

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Purpose: The medial collateral ligament (MCL), and posterior oblique ligament (POL) are the primary valgus stabilisers of the knee, and clinical examinations in grading valgus instability can be inherently subjective. Stress radiography of medial-sided knee injuries provides objective diagnosis and was analysed in this study. We hypothesised that (1) medial joint space opening would increase cutting the superficial MCL (sMCL), POL and anterior cruciate ligament (ACL); (2) isolated deep MCL (dMCL) injury would not increase medial joint space opening; (3) medial joint space opening would increase at higher flexion angles.

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