In plants, methylation is a common step in specialized metabolic pathways, leading to a vast diversity of natural products. The methylation of these small molecules is catalyzed by S-adenosyl-l-methionine (SAM)-dependent methyltransferases, which are categorized based on the methyl-accepting atom (O, N, C, S, or Se). These methyltransferases are responsible for the transformation of metabolites involved in plant defense response, pigments, and cell signaling. Plant natural product methyltransferases are part of the Class I methyltransferase-superfamily containing the canonical Rossmann fold. Recent advances in genomics have accelerated the functional characterization of plant natural product methyltransferases, allowing for the determination of substrate specificities and regioselectivity and further realizing the potential for enzyme engineering. This review compiles known biochemically characterized plant natural product methyltransferases that have contributed to our knowledge in the diversification of small molecules mediated by methylation steps.

The integration of ultrasound into undergraduate medical education (UGME) has garnered increasing attention due to its potential to enhance clinical training; however, a standardized framework for its implementation and curricular standards has yet to be established. This study aims to review how medical schools have implemented ultrasound training, evaluate its benefits in helping students develop clinical decision-making skills, and identify barriers that limit its broader adoption. A literature review was conducted using PubMed, MEDLINE, and Google Scholar databases to identify peer-reviewed studies published between 1993 and 2025, focusing on curricula design, implementation strategies, educational outcomes, and challenges. Results show that early and longitudinal exposure to ultrasound improves students’ understanding of anatomy, strengthens clinical reasoning, and increases preparedness for residency; however, curricular time constraints, faculty training gaps, and financial barriers continue to deter some programs from introducing ultrasound curriculum early. While growing evidence supports the value of ultrasound in UGME, adoption remains inconsistent, underscoring the need for standardized, evidence-based frameworks to ensure equitable access and skill development across institutions. Future efforts should focus on developing and implementing national standards that promote consistent and uniform integration of ultrasound training into UGME.

Background: Food insecurity (FI), which is defined as limited or uncertain access to sufficient, nutritious food, disproportionately affects low-income populations and has been linked to poor control of chronic diseases including type 2 diabetes mellitus (T2DM) with North Louisiana having one of the highest rates of FI in the United States. The interaction between FI and neighborhood-level socioeconomic disadvantage has not been well characterized in relation to microvascular diabetic complications. Objective: This study aimed to evaluate the relationship between FI, socioeconomic disadvantage, and microvascular complications in patients with T2DM. Methods: A retrospective cohort study of 163 adult patients with T2DM who received care at Ochsner LSU Health clinics in Shreveport and Monroe, Louisiana, between January 2018 and January 2023 were reviewed. FI status, Area Deprivation Index (ADI), a validated measure on neighborhood socioeconomic disadvantage, and microvascular complication outcomes including nephropathy, neuropathy, and retinopathy were obtained from electronic medical records. FI was assessed using the validated two-item Hunger Vital Sign screening tool. Results: The study found that FI alone was not a statistically significant predictor of nephropathy based on microalbumin-to-creatinine ratio (MACR). However, the combination of FI and high ADI (≥7) was significantly associated with neuropathy (p = 0.024) and retinopathy (p < 0.001), particularly among patients with T2DM for more than five years. Additionally, the interaction between FI and high ADI was also found to influence MACR values significantly (p = 0.026), indicating that socioeconomic stressors may exacerbate kidney dysfunction. Conclusions: Food insecurity, coupled with socioeconomic adversity, was associated with an increased risk of microvascular complications in T2DM. These results highlight the importance of integrating FI screening and addressing social determinants of health in high-risk populations. Early identification and targeted interventions could help mitigate disease progression and reduce health disparities.