University of California San Diego

Insulin resistance is associated with mammary mitochondrial dysfunction at the onset of human lactation

Insulin resistance (IR) has emerged as a risk factor for lactation insufficiency and delays the onset of milk secretion after childbirth, termed secretory activation (SA). This may cause inadequate infant weight gain and early breastfeeding cessation. However, the mechanisms unde...

Fossil denticles reveal how ocean productivity shapes shark baselines and recovery potential

Shark populations on coral reefs have declined globally, but few baselines exist to quantify natural variability before human impact. Using fossil dermal denticles preserved in reef sediments, we reconstructed shark communities across the Isthmus of Panama before substantial expl...

Visual Field Progression Rate and Laminar Depth and Curvature in the African Descent and Glaucoma Evaluation Study (ADAGES)

Abstract P urpose To determine if lamina cribrosa (LC) depth and curvature predict visual field (VF) progression rate in the African Descent and Glaucoma Evaluation Study (ADAGES) cohort in patients with primary open angle glaucoma (POAG). S ubjects Participants, and/or Controls....

Measuring Ocean Surface Waves

Abstract Propagating waves on the ocean surface can be represented as a stochastic process whose statistics are characterized by a spectrum. This paper reviews methods for measuring the wave spectrum and related quantities. Observations begin by sensing fluid dynamical properties...

Opioid prescription patterns for hidradenitis suppurativa in the emergency versus ambulatory care settings

Abstract Hidradenitis suppurativa (HS) is associated with significant pain. However, there is a paucity of literature examining opioid prescription patterns in HS in different healthcare settings. We aim to determine differences in opioid prescription patterns between HS patients...

Inhibition of RhoA-mediated secretory autophagy in megakaryocytes mitigates myelofibrosis in mice

Abstract Megakaryocytes (MKs) are large, polyploid cells that contribute to bone marrow homeostasis through the secretion of cytokines such as transforming growth factor β1 (TGFβ1). During neoplastic transformation, immature MKs accumulate in the bone marrow where they induce fib...

Hepatocyte-intrinsic ER stress and NRF2 initiate primary sclerosing cholangitis, providing therapeutic insights

primary sclerosing cholangitis (PSC) is a severe liver disease that can progress to cholangiocarcinoma. Therapeutic development has been hindered by the rarity of PSC and by its poorly understood origin, which reflects incompletely defined genetic and environmental risk factors....

Longitudinal changes in gut microbiota across reproductive states in wild baboons

Background: In humans and other mammals, female reproduction is linked to extensive changes in physiology, immunity, hormones, and behavior. These changes likely shape, and may be shaped by, the composition of gut microbial communities. Characterizing the dynamics of gut microbia...

Radiological Late Dental Adverse Effects Following Treatment for Paediatric Head and Neck Rhabdomyosarcoma: Results of a Transatlantic Multicentre Cohort Study

ABSTRACT Objectives Rhabdomyosarcoma represents the most common paediatric soft tissue sarcoma, with 40% occurring in the head and neck region. Given that survival rates now reach 80%, minimising late adverse effects, particularly dental developmental complications, has become a...

Causal beliefs and behavioural self-evaluation in cardiac rehabilitation: a cross-national study in the United States and Japan

Abstract Background Patients with established cardiovascular disease (CVD) continue to face substantial residual risk of recurrent events despite optimal medical management. Beliefs about disease causation, particularly attribution to genetic versus lifestyle factors, may influen...

Discovery of Sphaeriaurantinsas Rapid-Acting Antiplasmodialswith Dual Activity in Blood and Liver Stages

Abstract The rapid emergence of resistance in the malaria-causing protozoan Plasmodium falciparum has heightened the demand for treatments with novel modes of action. Having evolved to produce a myriad of structurally diverse natural products (NPs) as defenses against soil-dwelli...

mTOR inhibition augments antitumor immune effector response by reprogramming the TP53-mutant, immune-cold HNSCC tumor microenvironment

Resistance to immunotherapy remains a major clinical challenge in TP53 -mutant head and neck squamous cell carcinoma (HNSCC), a disease subset characterized by immune exclusion, high recurrence, and poor outcomes. Given the constitutive activation of PI3K/AKT/mTOR signaling in TP...

Right hippocampal volume and attenuated psychotic symptoms distinguish subgroups of youth with common patterns of temporoparietal effective connectivity

Abstract Associations between patterns of brain connectivity and brain structural features have transdiagnostic relevance to psychopathology. There is considerable evidence for disruptions to the hippocampus and temporoparietal brain systems in psychotic disorders. The present st...

Narrowband and wavelength-tuneable bright EUV–soft-X-ray harmonics for resonant imaging and spectroscopy

Abstract Ultrashort, bright, wavelength-tuneable X-ray pulses are essential for resonant imaging and spectroscopy, yet are typically available only at large-scale free-electron-laser facilities. In this study, we present an efficient tabletop technique for generating wavelength-t...

Demonstratingthe Chemoselective Lewis Acid Activityof Pyridine(Diimine) Bismuth Cations

Abstract Herein, we describe the preparation of a library of cationic bismuth(III) pyridine(diimine) compounds and the assessment of their Lewis acidity measured by their interaction with phosphine oxides, acid halides, and ketones. These bismuth compounds have acceptor number va...

Reducing Emergency Department Observation Time for Patients with Low-Risk Anaphylaxis

OBJECTIVE Historically, patients with anaphylaxis are observed for at least 4 hours after receiving epinephrine to monitor for biphasic reactions. In April 2020, the Joint Task Force on Practice Parameters (JTFPP) released updated anaphylaxis guidelines, recommending a 1-hour obs...

Deciphering Kinetic Principles of Dual‐Anion Electrolytes for Extreme Fast‐Charging Lithium‐Ion Batteries

ABSTRACT Tailoring Li + solvation coordination has been recognized as a strategy to enhance the electrochemical performance of lithium‐ion batteries (LIBs) under extreme fast‐charging (XFC) conditions. Beyond weakening Li + solvation, increased Li–anion pairing plays a crucial ro...

Review of Particle Physics *

The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 3,200 new measurements from 903 papers, we list, evaluate, and average measured properties of gauge bosons and the recently discovered Higgs boson, leptons, quarks, mesons, and b...

Improving sepsis best practice utility and clinical acceptance using an LLM-enhanced prediction system

Early detection of sepsis is essential for reducing mortality, but diagnosis can be delayed because symptoms of sepsis are often non-specific, frequently mimic other conditions and differ between individuals. We implemented COMPOSER-LLM, an enhanced sepsis prediction system that...

Impaired but now diagnosable: Combining analytic frameworks for incorporating symptom weighting in the classification of full‐threshold and subthreshold posttraumatic stress disorder

Abstract Individuals with subthreshold posttraumatic stress disorder (PTSD) often experience significant impairment yet face barriers to care (e.g., insurance denials and exclusion from clinical trials) due to strict Diagnostic and Statistical Manual of Mental Disorders ( DSM )–b...