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Abstract Background Cutaneous metastases in pancreatic cancer (PC) are rare. Herein, we evaluate the clinical, genomic, and other descriptors of patients with PC and cutaneous metastases. Methods Institutional databases were queried, and clinical history, demographics, PC cutaneous metastasis details, and overall survival (OS) from cutaneous metastasis diagnosis were abstracted. OS was estimated using Kaplan–Meier methods. Results Forty patients were identified, and median age (Q1–Q3, IQR) of PC diagnosis was 66.0 (59.3–72.3, 12.9) years. Most patients had Stage IV disease at diagnosis (n = 26, 65%). The most common location of the primary tumor was the tail of the pancreas (n = 17, 43%). The most common cutaneous metastasis site was the abdomen (n = 31, 78%), with umbilical lesions occurring in 74% (n = 23) of abdominal lesions. The median OS (95% CI) was 11.4 months (7.0, 20.4). Twenty‐three patients had umbilical metastases (58%), and 17 patients had non‐umbilical metastases (43%). The median OS (95% CI) was 13.7 (7.0, 28.7) months in patients with umbilical metastases and 8.9 (4.1, Not reached) months in patients with non‐umbilical metastases (p = 0.1). Sixteen of 40 (40%) patients underwent somatic testing, and findings were consistent with known profiles. Germline testing in 12 (30%) patients identified pathogenic variants in patients: CHEK2, BRCA1, and ATM. Conclusion Cutaneous metastases from PC most frequently arise from a pancreas tail primary site and most frequently occur in the umbilicus. Cutaneous metastases may generally be categorized as umbilical or non‐umbilical metastases.

Background: Diabetes is a common comorbidity in patients with early-stage non-small cell lung cancer (NSCLC), a growing population due to increased LC screening. However, it is unknown if diabetes is associated with less aggressive NSCLC treatment and worse NSCLC outcomes. This study aimed to investigate treatment patterns and outcomes of older patients with Stage I NSCLC and diabetes. Methods: Using national cancer registry data linked to Medicare, we identified patients ≥65 years old with Stage I NSCLC. Patients were categorized as having no diabetes, diabetes without severe complications (DM-c), or diabetes with ≥1 severe complication (DM + c). We used multinomial logistic regression to assess the association of diabetes and NSCLC treatment. The association of diabetes category with NSCLC and non-NSCLC survival was analyzed with Fine-Grey competing-risks regression. Results: In 25,358 patients (75% no diabetes, 12% DM-c and 13% had DM + c), adjusted analyses showed that DM-c and DM + c were associated with increased odds of receiving limited resection rather than lobectomy (odds ratio [OR]: 1.22, 95% confidence interval [CI]: 1.07–1.37 and OR 1.42, 95% CI 1.26–1.59, respectively). Competing risk regression showed diabetes was associated with increased risk of non-NSCLC death (DM-c hazard ratio [HR] 1.16, 95% CI: 1.08–1.25, DM + c HR 1.49, 95% CI: 1.40–1.59), but not NSCLC-specific death. Conclusion: This study uncovers critical information on how diabetes is associated with less aggressive early-stage NSCLC care in older patients. This study also confirms that diabetes increases death from non-lung cancer causes and managing comorbidities is crucial to improving outcomes in older early-stage NSCLC survivors.

OBJECTIVE: Lung cancer is the leading cause of cancer death in people living with HIV (PWH). Surgical resection is a key component of potentially curative treatment regimens for early-stage lung cancers, but its safety is unclear in the setting of HIV. From a national cohort, we assessed potential differences in the risk of major lung cancer surgery complications by HIV status. DESIGN: We linked clinical and cancer data from the Veterans Aging Cohort Study (VACS) and Veterans Affairs Corporate Data Warehouse to outcomes from the Veterans Affairs Surgical Quality Improvement Program (VASQIP) and identified 8371 patients (137 PWH, 8234 uninfected) who underwent lung cancer surgeries between 2000 and 2016. METHODS: We compared rates of 15 major short-term surgical complications by HIV status. RESULTS: Use of surgical resection for early-stage lung cancer did not differ by HIV status. Lung cancer surgery postoperative (30-day) mortality was 2.0% for PWH and did not differ by HIV status (P = 0.9). Pneumonia was the most common complication for both PWH and uninfected veterans, but did not differ significantly in prevalence between groups (11.0% for PWH versus 9.4%; P = 0.5). The frequency of complications did not differ by HIV status for any complication (all P > 0.3). There were no significant predictors of postoperative complications for PWH. CONCLUSIONS: In a national antiretroviral-era cohort of lung cancer patients undergoing surgical lung resection, short-term outcomes after surgery did not differ significantly by HIV status. Concerns regarding short-term surgical complications should have limited influence on treatment decisions for PWH with lung cancer.

ObjectiveLung cancer is the leading cause of cancer death in people living with HIV (PWH). Surgical resection is a key component of potentially curative treatment regimens for early-stage lung cancers, but its safety is unclear in the setting of HIV. From a national cohort, we assessed potential differences in the risk of major lung cancer surgery complications by HIV status.DesignWe linked clinical and cancer data from the Veterans Aging Cohort Study (VACS) and Veterans Affairs Corporate Data Warehouse to outcomes from the Veterans Affairs Surgical Quality Improvement Program (VASQIP) and identified 8371 patients (137 PWH, 8234 uninfected) who underwent lung cancer surgeries between 2000 and 2016.MethodsWe compared rates of 15 major short-term surgical complications by HIV status.ResultsUse of surgical resection for early-stage lung cancer did not differ by HIV status. Lung cancer surgery postoperative (30-day) mortality was 2.0% for PWH and did not differ by HIV status (P = 0.9). Pneumonia was the most common complication for both PWH and uninfected veterans, but did not differ significantly in prevalence between groups (11.0% for PWH versus 9.4%; P = 0.5). The frequency of complications did not differ by HIV status for any complication (all P > 0.3). There were no significant predictors of postoperative complications for PWH.ConclusionsIn a national antiretroviral-era cohort of lung cancer patients undergoing surgical lung resection, short-term outcomes after surgery did not differ significantly by HIV status. Concerns regarding short-term surgical complications should have limited influence on treatment decisions for PWH with lung cancer.

Abstract Single-molecule FRET (smFRET) is a versatile technique to study the dynamics and function of biomolecules since it makes nanoscale movements detectable as fluorescence signals. The powerful ability to infer quantitative kinetic information from smFRET data is, however, complicated by experimental limitations. Diverse analysis tools have been developed to overcome these hurdles but a systematic comparison is lacking. Here, we report the results of a blind benchmark study assessing eleven analysis tools used to infer kinetic rate constants from smFRET trajectories. We test them against simulated and experimental data containing the most prominent difficulties encountered in analyzing smFRET experiments: different noise levels, varied model complexity, non-equilibrium dynamics, and kinetic heterogeneity. Our results highlight the current strengths and limitations in inferring kinetic information from smFRET trajectories. In addition, we formulate concrete recommendations and identify key targets for future developments, aimed to advance our understanding of biomolecular dynamics through quantitative experiment-derived models.

Abstract Background Many World Trade Center disaster (WTC) rescue and recovery workers (WTC RRWV) were exposed to toxic inhalable particles. The impact of WTC exposures on lung cancer risk is unclear. Methods Data from the WTC Health Program General Responders Cohort (WTCGRC) were linked to health information from a large New York City health system to identify incident lung cancer cases. Incidence rates for lung cancer were then calculated. As a comparison group, we created a microsimulation model that generated expected lung cancer incidence rates for a WTC‐ and occupationally‐unexposed cohort with similar characteristics. We also fitted a Poisson regression model to determine specific lung cancer risk factors for WTC RRWV. Results The incidence of lung cancer for WTC RRWV was 39.5 (95% confidence interval [CI]: 30.7–49.9) per 100,000 person‐years. When compared to the simulated unexposed cohort, no significant elevation in incidence was found among WTC RRWV (incidence rate ratio [IRR] 1.34; 95% CI: 0.92–1.96). Predictors of lung cancer incidence included age, smoking intensity, and years since quitting for former smokers. In adjusted models evaluating airway obstruction and individual pre‐WTC occupational exposures, only mineral dust work was associated with lung cancer risk (IRR: 2.03; 95% CI: 1.07–3.86). Discussion In a sample from a large, prospective cohort of WTC RRWV we found a lung cancer incidence rate that was similar to that expected of a WTC‐ and occupationally‐unexposed cohort with similar individual risk profiles. Guideline‐concordant lung cancer surveillance and periodic evaluations of population‐level lung cancer risk should continue in this group.

RNA splicing, the removal of introns and ligation of exons, is a crucial process during mRNA maturation. Group II introns are large ribozymes that self-catalyze their splicing, as well as their transposition. They are living fossils of spliceosomal introns and eukaryotic retroelements. The yeast mitochondrial Sc.ai5γ is the first identified and best-studied self-splicing group II intron. A combination of biochemical, biophysical, and computational tools enables studying its catalytic properties, structure, and dynamics, while also serving to develop new therapeutic and biotechnological tools. We survey the history of group II intron studies paralleling the trends in RNA methodology with Sc.ai5γ in the spotlight.

The article published in Liver International explores the relationship between pharmaceutical industry payments and physician prescription patterns for direct-acting antiviral drugs (DAAs) used to treat hepatitis C virus infection in the United States. The study found that physicians who received payments from DAA manufacturers were more likely to prescribe specific DAAs, such as ledipasvir/sofosbuvir, elbasvir/grazoprevir, sofosbuvir/velpatasvir, and glecaprevir/pibrentasvir. The findings suggest that industry payments may influence physician prescribing practices, impacting Medicare spending on these medications. The study highlights the importance of transparency and ethical considerations in interactions between pharmaceutical companies and healthcare providers. [Extracted from the article]

BACKGROUND: Viral suppression is a primary marker of HIV treatment success. Persons with HIV are at increased risk for AIDS-defining cancer (ADC) and several types of non-AIDS-defining cancer (NADC), some of which are caused by oncogenic viruses. OBJECTIVE: To determine whether viral suppression is associated with decreased cancer risk. DESIGN: Prospective cohort. SETTING: Department of Veterans Affairs. PARTICIPANTS: HIV-positive veterans (n = 42 441) and demographically matched uninfected veterans (n = 104 712) from 1999 to 2015. MEASUREMENTS: Standardized cancer incidence rates and Poisson regression rate ratios (RRs; HIV-positive vs. uninfected persons) by viral suppression status (unsuppressed: person-time with HIV RNA levels ≥500 copies/mL; early suppression: initial 2 years with HIV RNA levels

BackgroundViral suppression is a primary marker of HIV treatment success. Persons with HIV are at increased risk for AIDS-defining cancer (ADC) and several types of non-AIDS-defining cancer (NADC), some of which are caused by oncogenic viruses.ObjectiveTo determine whether viral suppression is associated with decreased cancer risk.DesignProspective cohort.SettingDepartment of Veterans Affairs.ParticipantsHIV-positive veterans (n = 42 441) and demographically matched uninfected veterans (n = 104 712) from 1999 to 2015.MeasurementsStandardized cancer incidence rates and Poisson regression rate ratios (RRs; HIV-positive vs. uninfected persons) by viral suppression status (unsuppressed: person-time with HIV RNA levels ≥500 copies/mL; early suppression: initial 2 years with HIV RNA levels

Ferns are the closest sister group to all seed plants, yet little is known about their genomes other than that they are generally colossal. Here, we report on the genomes of Azolla filiculoides and Salvinia cucullata (Salviniales) and present evidence for episodic whole-genome duplication in ferns-one at the base of 'core leptosporangiates' and one specific to Azolla. One fern-specific gene that we identified, recently shown to confer high insect resistance, seems to have been derived from bacteria through horizontal gene transfer. Azolla coexists in a unique symbiosis with N2-fixing cyanobacteria, and we demonstrate a clear pattern of cospeciation between the two partners. Furthermore, the Azolla genome lacks genes that are common to arbuscular mycorrhizal and root nodule symbioses, and we identify several putative transporter genes specific to Azolla-cyanobacterial symbiosis. These genomic resources will help in exploring the biotechnological potential of Azolla and address fundamental questions in the evolution of plant life.

Efforts to control the coronavirus disease 2019 (COVID-19) pandemic have been negatively affected by myths, misconceptions and misinformation, fuelled by an "infodemic" spread via social media platforms. In response, The Zimbabwean COVID-19 response built on its experience with past public health communication strategies to employ edutainment strategies for COVID-19 awareness campaigns. This article discusses the different strategies and how they were employed. In this perspective piece, the authors discuss edutainment as an effective vehicle for reaching wider sectors of society. In tackling complex social issues with simple language, integrated into various entertainment formats, edutainment can bring about change in contexts where traditional strategies and actions may prove unsuccessful.