Upregulation of ALOX12-12-HETE pathway impairs AMPK-dependent modulation of vascular metabolism in ApoE/LDLR mice.

Mitochondrial dysfunction and 12-lipoxygenase (ALOX12)-derived 12(S)-HETE production have been associated with vascular inflammation and the pathogenesis of atherosclerosis. However, the role of ALOX12 in regulating vascular energy metabolism in vascular inflammation has not been studied to date. Using mitochondrial and glycolysis functional profiling with the Seahorse extracellular flux analyzer, metabolipidomics, and proteomic analysis (LC-MS/MS), we characterized alterations in vascular energy metabolism in 2- and 6-month-old ApoE/LDLR vs.

Preanalytical Phase Tumor Contaminants in Intraoperative Margins From Transoral Robotic Surgeries.

Context.—: Tumor contaminants were incidentally noted in frozen section margins of oropharyngeal squamous cell carcinoma.

Objective.

Phylloquinone improves endothelial function, inhibits cellular senescence, and vascular inflammation.

Phylloquinon (PK) and menaquinones (MK) are both naturally occurring compounds belonging to vitamin K group. Present study aimed to comprehensively analyze the influence of PK in several models of vascular dysfunction to determine whether PK has vasoprotective properties, similar to those previously described for MK. Effects of PK and MK on endothelial dysfunction were studied in ApoE/LDLR mice in vivo, in the isolated aorta incubated with TNF, and in vascular cells as regard inflammation and cell senescence (including replicative and stress-induced models of senescence).

Osteoprotegerin Is Essential for the Development of Endothelial Dysfunction Induced by Angiotensin II in Mice.

Opinions on the effects of osteoprotegerin (OPG) have evolved over the years from a protein protecting the vasculature from calcification to a cardiovascular risk factor contributing to inflammation within the vascular wall. Nowadays, the link between OPG and angiotensin II (Ang II) appears to be particularly important. In this study, the endothelial function was investigated in OPG-knockout mice (B6.

Functional deterioration of vascular mitochondrial and glycolytic capacity in the aortic rings of aged mice.

Vascular ageing is associated with increased arterial stiffness and cardiovascular mortality that might be linked to altered vascular energy metabolism. The aim of this study was to establish a Seahorse XFe96 Analyzer-based methodology for the reliable, functional assessment of mitochondrial respiration and glycolysis in single murine aortic rings and to validate this functional assay by characterising alterations in vascular energy metabolism in aged mice. Healthy young and old C57BL/6 mice were used for the analyses.

Vascular protein disulfide isomerase A1 mediates endothelial dysfunction induced by angiotensin II in mice.

Aim: Protein disulfide isomerases (PDIs) are involved in platelet aggregation and intravascular thrombosis, but their role in regulating endothelial function is unclear. Here, we characterized the involvement of vascular PDIA1 in angiotensin II (Ang II)-induced endothelial dysfunction in mice.

Methods: Endothelial dysfunction was induced in C57BL/6JCmd male mice via Ang II subcutaneous infusion, and PDIA1 was inhibited with bepristat.

Chymase-independent vascular Ang-(1-12)/Ang II pathway and TXA generation are involved in endothelial dysfunction in the murine model of heart failure.

The angiotensin (Ang)-(1-12)/Ang II pathway contributes to cardiac pathology. However, its involvement in the development of peripheral endothelial dysfunction associated with heart failure (HF) remains unknown. Therefore, this study aimed to characterise the effect of exogenous Ang-(1-12) and its conversion to Ang II on endothelial function using the murine model of HF (Tgαq*44 mice), focusing on the role of chymase and vascular-derived thromboxane A (TXA).

Exploring the Role of Artificial Intelligence Chatbots in Preoperative Counseling for Head and Neck Cancer Surgery.

Objective: To evaluate the potential use of artificial intelligence (AI) chatbots, such as ChatGPT, in preoperative counseling for patients undergoing head and neck cancer surgery.

Study Design: Cross-Sectional Survey Study.

Setting: Single institution tertiary care center.

The Obesity Paradox in Thyroid Surgery: Is Higher BMI Protective Against Hypoparathyroidism?

Background: With a demonstrated association between adiposity and parathyroid hormone (PTH) levels, we hypothesized that patients with a higher body mass index (BMI) would have lower rates of postoperative hypoparathyroidism following total thyroidectomy.

Methods: retrospective review of patients undergoing total thyroidectomy from 2015 to 2021. Demographics, BMI, surgical indications, and laboratory data including pre- and postoperative PTH values were examined.

Preoperative Evaluation of Thyroid Cancer: A Review of Current Best Practices.

Objective: The incidence of thyroid cancer has significantly increased in recent decades. Although most thyroid cancers are small and carry an excellent prognosis, a subset of patients present with advanced thyroid cancer, which is associated with increased rates of morbidity and mortality. The management of thyroid cancer requires a thoughtful individualized approach to optimize oncologic outcomes and minimize morbidity associated with treatment.

Can a Multidisciplinary Endocrine Clinic be Beneficial for Patients and Surgeons?

Background: Multidisciplinary clinics are expected to improve patient care by enhancing efficiency for both patients and care providers. We hypothesized that while these clinics are an efficient use of time for patients, they can limit a surgeon's productivity.

Methods: A retrospective review was performed for patients evaluated in a Multidisciplinary Endocrine Tumor Clinic (MDETC) and Multidisciplinary Thyroid Cancer Clinic (MDTCC) from 2018 to 2021.

Positive Deep Initial Incision Margin Affects Outcomes in TORS for HPV+ Oropharynx Cancer.

Objective: Evaluate the effect of initial incision margins (IIM) on clinical outcomes after transoral robotic surgery (TORS) for human papillomavirus positive (HPV+) squamous cell cancers of the oropharynx (OPSCC).

Methods: Retrospective chart review of patients undergoing TORS for HPV+ OPSCC from 2007 to 2015 was performed. Overall survival (OS), disease-specific survival (DSS), recurrence, and metastases were evaluated in the context of pathology, IIM, final margins, adjuvant therapy, and patient characteristics.

Direct Thrombin Inhibitor Dabigatran Compromises Pulmonary Endothelial Integrity in a Murine Model of Breast Cancer Metastasis to the Lungs; the Role of Platelets and Inflammation-Associated Haemostasis.

Activation of the coagulation cascade favours metastatic spread, but antithrombotic therapy might also have detrimental effects on cancer progression. In this study, we characterized the effects of dabigatran, a direct reversible thrombin inhibitor, on the pulmonary endothelial barrier and metastatic spread in a murine model of breast cancer metastasis. Dabigatran etexilate (100 mg kg) was administered to mice twice daily by oral gavage.

Clarifying optimal outcome measures in intermittent and continuous laryngeal neuromonitoring.

Background: Intraoperative neuromonitoring (IONM) techniques have evolved over the past decade into intermittent IONM (I-IONM) and continuous IONM (C-IONM) modes of application. Despite many prior publications on both types of IONM, there remains uncertainty about what outcomes should be measured for each form of IONM. The primary objective of this paper is to define categories of benefit for I-IONM/C-IONM and to clarify and standardize their reporting outcomes.

Mediastinal parathyroidectomy: Utilization of a multidisciplinary, robotic-assisted transthoracic approach in challenging cases.

Background: The majority of ectopic mediastinal parathyroid adenomas are accessible transcervically and those not amenable to this approach pose a significant clinical and technical challenge.

Methods: Retrospective review of transthoracic robot-assisted mediastinal parathyroidectomy (TTRMP) for primary hyperparathyroidism between 2012 and 2019 at a single institution.

Results: 16 patients underwent TTRMP, 63% were female with a mean age of 64 ± 2.

Systemic Administration of Insulin Receptor Antagonist Results in Endothelial and Perivascular Adipose Tissue Dysfunction in Mice.

Hyperglycemia linked to diabetes results in endothelial dysfunction. In the present work, we comprehensively characterized effects of short-term hyperglycemia induced by administration of an insulin receptor antagonist, the S961 peptide, on endothelium and perivascular adipose tissue (PVAT) in mice. Endothelial function of the thoracic and abdominal aorta in 12-week-old male C57Bl/6Jrj mice treated for two weeks with S961 infusion via osmotic pumps was assessed in vivo using magnetic resonance imaging and ex vivo by detection of nitric oxide (NO) production using electron paramagnetic resonance spectroscopy.

Prophylactic Central Neck Dissection in Papillary Thyroid Carcinoma: All Risks, No Reward.

Background: Central neck dissection (CND) remains a controversial intervention for papillary thyroid carcinoma (PTC) patients with clinically negative nodes (cN0) in the central compartment. Proponents state that CND in cN0 patients prevents locoregional recurrence, while opponents deem that the risks of complications outweigh any potential benefit. Thus, there remains conflicting results amongst studies assessing oncologic and surgical outcomes in cN0 PTC patients who undergo CND.

Utility of intraoperative frozen sections of thyroid tissue in the age of molecular testing.

Objectives: Our study aims to examine the correlation between preoperative ultrasound-guided fine-needle aspiration and intraoperative frozen section and examine the clinical benefit of frozen section in the context of the latest national guidelines on the management of differentiated thyroid cancer.

Study Design: A retrospective review of thyroid frozen section from 2012 to2017 at one institution.

Setting: Tertiary care centre.

Ambulatory Surgery vs Overnight Observation for Total Thyroidectomy: Cost Analysis and Outcomes.

Objective: To compare financial impact between patients undergoing ambulatory (same-day discharge) vs overnight admission after total thyroidectomy while showing associated surgical outcomes.

Study Design: Retrospective review.

Setting: University of Alabama at Birmingham Medical Center from October 2011 and July 2017.

Improving Head and Neck Microvascular Reconstructive Care with a Novel Perioperative Checklist.

Objective/hypothesis: To appraise the utility of a novel EMR-based checklist for complex head and neck microvascular free-tissue reconstruction.

Study Design: A prospectively collected retrospective matched cohort study from a single tertiary care academic institution.

Methods: A retrospective matched cohort study from an academic tertiary care center with 76 total patients analyzed for disease-specific and quality outcomes before and after implementation of an EMR-based checklist tailored to complex head and neck care.

Retropharyngeal abscess in a post-lung transplant cystic fibrosis patient with prior cervical fusion: a case study.

Background: Cystic fibrosis (CF) is a chronic, genetic, incurable disease that affects primarily the respiratory and gastrointestinal systems. End-stage lung disease is the leading cause of death in people with CF, and lung transplant is required to preserve life. Anti-rejection medications are necessary post-transplant; however, these medications lower immune response and increase susceptibility to bacterial infections.

Revisiting a rare disease: Oral cavity basaloid squamous cell carcinoma at a high-volume tertiary center.

Objectives: Rare diseases are often poorly understood, and this study sought to investigate the incidence of a rare disease entity, basaloid squamous cell carcinoma (BSCC) of the oral cavity (OC) at a tertiary care medical center and to assess its clinical outcomes.

Methods: The aim of this study was to collect data in order to better understand how this rare disease progresses. This was a case series of patients with OC BSCC diagnosed between 2001 and 2018.

Head and neck oncologic surgery in the COVID-19 pandemic: Our experience in a deep south tertiary care center.

Introduction: The ongoing worldwide pandemic due to COVID-19 has forced drastic changes on the daily lives of the global population. This is most notable within the health care sector. The current paper outlines the response of the head and neck oncologic surgery (HNS) division within our academic otolaryngology department in the state of Alabama.