Nuclear ATP-citrate lyase regulates chromatin-dependent activation and maintenance of the myofibroblast gene program.

Differentiation of cardiac fibroblasts to myofibroblasts is necessary for matrix remodeling and fibrosis in heart failure. We previously reported that mitochondrial calcium signaling drives α-ketoglutarate-dependent histone demethylation, promoting myofibroblast formation. Here we investigate the role of ATP-citrate lyase (ACLY), a key enzyme for acetyl-CoA biosynthesis, in histone acetylation regulating myofibroblast fate and persistence in cardiac fibrosis.

Mitochondrial calcium uniporter channel gatekeeping in cardiovascular disease.

The mitochondrial calcium (Ca) uniporter channel (mtCU) resides at the inner mitochondrial membrane and is required for Ca to enter the mitochondrial matrix. The mtCU is essential for cellular function, as Ca regulates metabolism, bioenergetics, signaling pathways and cell death. Ca uptake is primarily regulated by the MICU family (MICU1, MICU2, MICU3), EF-hand-containing Ca-sensing proteins, which respond to cytosolic Ca concentrations to modulate mtCU activity.

Unraveling the spectrum of airway complications following lung transplantation: a comprehensive overview.

Purpose Of Review: This review delves into the intricate landscape of airway complications post lung transplantation. With the rising prevalence of end-stage lung disease and the increasing number of lung transplantation worldwide, understanding and effectively managing airway complications are crucial. Given the nuanced nature of these complications and the array of treatment options available, this review aims to provide a comprehensive overview of how to identify, classify, mitigate risk factors for, and manage these complications.

Buprenorphine Induction in Trauma Patients With Opioid Use Disorder - A Single Center Experience?

Introduction: Buprenorphine is a Food and Drug Administration-approved therapy for opioid use disorder, with proven efficacy in treatment retention and reduction in opioid use and mortality. Low-dose buprenorphine initiation or microinduction is a novel means of initiation that may allow for an easier transition in patients. Trauma patients have high rates of opioid use disorder and patient directed discharges (PDD).

MICU1 and MICU2 control mitochondrial calcium signaling in the mammalian heart.

Activating Ca-sensitive enzymes of oxidative metabolism while preventing calcium overload that leads to mitochondrial and cellular injury requires dynamic control of mitochondrial Ca uptake. This is ensured by the mitochondrial calcium uptake (MICU)1/2 proteins that gate the pore of the mitochondrial calcium uniporter (mtCU). MICU1 is relatively sparse in the heart, and recent studies claimed the mammalian heart lacks MICU1 gating of mtCU.

Examining timing of periorbital interventions in patients with upper division facial paralysis.

Background: Facial paralysis is a life-altering condition that may arise from various etiologies, ranging from trauma to malignancy. Permanent facial paralysis may occur secondary to facial nerve sacrifice or irreversible damage to the nerve. In these particularly devastating cases, protection and maintaining function of the eye is paramount.

Kidney and Cardiovascular Effectiveness of SGLT2 Inhibitors vs GLP-1 Receptor Agonists in Type 2 Diabetes.

Background: Emerging data suggest that glucagon-like peptide-1 receptor agonists (GLP-1 RAs) improve kidney outcomes for people with type 2 diabetes (T2D). Direct comparisons of the kidney and cardiovascular effectiveness of GLP-1 RA with sodium-glucose cotransporter 2 inhibitors (SGLT2i), a first-line therapy for this population, are needed.

Objectives: The authors compared kidney and cardiovascular outcomes for new users of SGLT2i and GLP-1 RAs with T2D.

Comparison of Outcomes with the Use of Different Heat-Activated Crimping Prostheses in Stapedotomy.

Objective: To determine differences in failure rate and hearing outcomes of a completely encircling heat-activated crimping prosthesis (SMart 360°) compared to partially encircling prosthesis (SMart).

Study Design: Retrospective chart review.

Setting: Private neurotology tertiary referral center.

Rapid postradiation malignant transformation of a pilocytic astrocytoma in an adult with neurofibromatosis type 1: illustrative case.

Background: Juvenile pilocytic astrocytoma (JPA) is the most common primary brain tumor of childhood and is rarely seen in adults. Neurofibromatosis type 1 (NF1), a common tumor predisposition syndrome, demonstrates a strong association with low-grade gliomas, most notably pilocytic astrocytoma, which are relatively indolent. Unlike its juvenile counterpart, reports of adult pilocytic astrocytoma (APA) vary widely in terms of disease progression from benign to much more malignant courses.

Safety of thyroidectomy in hospitalized patients: A descriptive analysis of the NSQIP thyroidectomy-targeted data.

Background: Some patients undergo thyroidectomy while hospitalized for a related or independent indication. Outcomes have not been described in this group.

Methods: The 2016-2018 thyroidectomy-targeted NSQIP datasets were queried for patients admitted for ≥1 day preoperatively.

High Prevalence of Multistep Algorithms in Diagnostic Clostridioides difficile Laboratory Testing.

Context.—: Laboratory testing practices for diagnosis of Clostridioides difficile infection (CDI) have evolved in response to published guidelines, availability of highly sensitive nucleic acid amplification tests (NAATs), perceived problems with the specificity of NAATs, and CDI reporting requirements.

Objective.

SGLT2 inhibitors activate pantothenate kinase in the human heart.

Inhibitors of sodium glucose cotransporter-2 (SGLT2i) demonstrate strong symptomatic and mortality benefits in the treatment of heart failure but appear to do so independently of SGLT2. The relevant pharmacologic target of SGLT2i remains unclear. We show here that SGLT2i directly activate pantothenate kinase 1 (PANK1), the rate-limiting enzyme that initiates the conversion of pantothenate (vitamin B5) to coenzyme-A (CoA), an obligate co-factor for all major pathways of fuel use in the heart.

Triad of Thyroid Ophthalmopathy, Dermopathy, and Acropachy.

A 40-year-old African-American man was referred to our dermatology clinic for management of his long-standing thyroid dermopathy. The patient was diagnosed with hyperthyroidism at the age of 20, and was treated with radioactive iodine I-131 but subsequently lost to follow-up. He had not consulted physicians again until the age of 30.