69 research outputs found
Trends in Mortality of Adults with Melanoma in the United States SEER Population
Background: While death from melanoma of the skin has been gradually decreasing over the past few decades, melanoma continues to be the leading causes of death among skin cancers. Less is known about specific causes of mortality among patients with melanoma and how or whether trends in cause of death among patients diagnosed with melanoma have changed in recent years.
Objective: To examine temporal trends in the cause-specific mortality among adult patients diagnosed with melanoma in the US between 2000-2013.
Methods: US patients ≥ 45 years when diagnosed with melanoma were identified using data from the Surveillance, Epidemiology, and End Results Program, 18 Registries (SEER-18). Joinpoint regression analysis was used to examine the trends in cause-specific mortality among patients who were diagnosed with melanoma and died from either melanoma or other causes of death. Trends were also examined separately by age, sex, and geographic region.
Results: A total of 52,675 patients diagnosed with melanoma who died from either melanoma or other cause of death (median age 74 years, 67% male) were included in the analysis. Overall, 31% of deaths were due to melanoma specifically, whereas 69% died from various other causes. A marked decline in melanoma-specific mortality was observed overall and across strata by age, sex, and region in the US beginning around 2013-2014. Among all causes of death, 55% were due to melanoma within 1 year after diagnosis and declined to 25% over the course of 6 years. A marked decline of at least 2.5% in mortality per year from other causes was observed among females, males, those 65 – 74 years or 75 years and older, and those living in northeastern, midwestern, western, and southern regions of US who were diagnosed with melanoma.
Conclusions: Changes in cause-specific mortality rate among patients with melanoma were observed overall and across different subgroups. Our findings show that, among those diagnosed with melanoma, the risk of melanoma-specific death is decreasing within the last two decades, and that the deaths among those with melanoma are more likely to be from other causes such as heart disease, lung cancer, and other conditions. Future studies are needed to assess the trends in melanoma mortality as treatments and diagnostic methods continue to advance
Investigating the Relationship Between Children\u27s Experiences During a Museum Health Promotion Program and Their Motivation to Learn and Adopt a Healthy Diet
The purpose of this convergent parallel mixed methods study was to investigate children’s learning experiences during the Eat a Georgia Rainbow program and to understand their motivation to learn about healthy eating and healthy cooking in relevance to the development of their intentions to adopt a healthy diet. The experiential learning theory was used as a lens during this study to emphasize the importance of participants learning experience through hands-on, task-oriented activities, and reflecting on the experiences. Recording camera-glasses, the Intrinsic Motivation Inventory (IMI) survey, Motivation for Diet survey, and follow-up individual interviews were used to collect data. In Phase I, data were collected from 50 child participants. During Phase II of the follow-up data collection, data were collected from 31 child participants and 20 parent participants. Pearson’s Product-Moment Correlation and simple linear regression analyses were conducted. The interview data were transcribed and coded, and a thematic search was conducted. There was not a relationship between child’s level of engagement, IMI survey scores, and Motivation for Diet survey scores. The child’s level of engagement and IMI survey score did not influence the child’s Motivation for Diet survey score. A joint display table was used to illustrate the integration of quantitative and qualitative data to compare and contrast the results. The interview data revealed that family conversations and participation in meal preparation did occur after the program. Exposing children to the topic of healthy eating and meal preparation is imperative, especially in an informal setting. Reinforcing what children were learning is imperative in sustaining long-term healthy behaviors; therefore, this model may be used in informal and higher education settings
DecodingTrust: A Comprehensive Assessment of Trustworthiness in GPT Models
Generative Pre-trained Transformer (GPT) models have exhibited exciting
progress in capabilities, capturing the interest of practitioners and the
public alike. Yet, while the literature on the trustworthiness of GPT models
remains limited, practitioners have proposed employing capable GPT models for
sensitive applications to healthcare and finance - where mistakes can be
costly. To this end, this work proposes a comprehensive trustworthiness
evaluation for large language models with a focus on GPT-4 and GPT-3.5,
considering diverse perspectives - including toxicity, stereotype bias,
adversarial robustness, out-of-distribution robustness, robustness on
adversarial demonstrations, privacy, machine ethics, and fairness. Based on our
evaluations, we discover previously unpublished vulnerabilities to
trustworthiness threats. For instance, we find that GPT models can be easily
misled to generate toxic and biased outputs and leak private information in
both training data and conversation history. We also find that although GPT-4
is usually more trustworthy than GPT-3.5 on standard benchmarks, GPT-4 is more
vulnerable given jailbreaking system or user prompts, potentially due to the
reason that GPT-4 follows the (misleading) instructions more precisely. Our
work illustrates a comprehensive trustworthiness evaluation of GPT models and
sheds light on the trustworthiness gaps. Our benchmark is publicly available at
https://decodingtrust.github.io/
Replication of Lung Cancer Susceptibility Loci at Chromosomes 15q25, 5p15, and 6p21: A Pooled Analysis From the International Lung Cancer Consortium
Background Genome-wide association studies have identified three chromosomal regions at 15q25, 5p15, and 6p21 as being associated with the risk of lung cancer. To confirm these associations in independent studies and investigate heterogeneity of these associations within specific subgroups, we conducted a coordinated genotyping study within the International Lung Cancer Consortium based on independent studies that were not included in previous genome-wide association studies. Methods Genotype data for single-nucleotide polymorphisms at chromosomes 15q25 (rs16969968, rs8034191), 5p15 (rs2736100, rs402710), and 6p21 (rs2256543, rs4324798) from 21 case-control studies for 11 645 lung cancer case patients and 14 954 control subjects, of whom 85% were white and 15% were Asian, were pooled. Associations between the variants and the risk of lung cancer were estimated by logistic regression models. All statistical tests were two-sided. Results Associations between 15q25 and the risk of lung cancer were replicated in white ever-smokers (rs16969968: odds ratio [OR] = 1.26, 95% confidence interval [CI] = 1.21 to 1.32, Ptrend = 2 × 10−26), and this association was stronger for those diagnosed at younger ages. There was no association in never-smokers or in Asians between either of the 15q25 variants and the risk of lung cancer. For the chromosome 5p15 region, we confirmed statistically significant associations in whites for both rs2736100 (OR = 1.15, 95% CI = 1.10 to 1.20, Ptrend = 1 × 10−10) and rs402710 (OR = 1.14, 95% CI = 1.09 to 1.19, Ptrend = 5 × 10−8) and identified similar associations in Asians (rs2736100: OR = 1.23, 95% CI = 1.12 to 1.35, Ptrend = 2 × 10−5; rs402710: OR = 1.15, 95% CI = 1.04 to 1.27, Ptrend = .007). The associations between the 5p15 variants and lung cancer differed by histology; odds ratios for rs2736100 were highest in adenocarcinoma and for rs402710 were highest in adenocarcinoma and squamous cell carcinomas. This pattern was observed in both ethnic groups. Neither of the two variants on chromosome 6p21 was associated with the risk of lung cancer. Conclusions In this international genetic association study of lung cancer, previous associations found in white populations were replicated and new associations were identified in Asian populations. Future genetic studies of lung cancer should include detailed stratification by histolog
Large-scale association analysis identifies new lung cancer susceptibility loci and heterogeneity in genetic susceptibility across histological subtypes.
Although several lung cancer susceptibility loci have been identified, much of the heritability for lung cancer remains unexplained. Here 14,803 cases and 12,262 controls of European descent were genotyped on the OncoArray and combined with existing data for an aggregated genome-wide association study (GWAS) analysis of lung cancer in 29,266 cases and 56,450 controls. We identified 18 susceptibility loci achieving genome-wide significance, including 10 new loci. The new loci highlight the striking heterogeneity in genetic susceptibility across the histological subtypes of lung cancer, with four loci associated with lung cancer overall and six loci associated with lung adenocarcinoma. Gene expression quantitative trait locus (eQTL) analysis in 1,425 normal lung tissue samples highlights RNASET2, SECISBP2L and NRG1 as candidate genes. Other loci include genes such as a cholinergic nicotinic receptor, CHRNA2, and the telomere-related genes OFBC1 and RTEL1. Further exploration of the target genes will continue to provide new insights into the etiology of lung cancer
Vaccine Hesitancy Among Individuals with Severe Mental Illness and/or Substance Abuse Disorder
The Center for Health Disparities collaborated with New Horizons, a local non-profit organization that governs Behavioral Health and Developmental Disabilities in the West Central Region to implement the community vaccine assessment to serve adults with Severe Persistent Mental Illness and/or Substance Use Disorder in Columbus, Georgia. Evidence supports that adults with mental health disorders have a reduced amount of 10 to 25 years of life expectancy and do not receive the same levels of care and treatment for physical health as the general population. The COVID-19 pandemic has exacerbated the existing issues with health inequities for those with mental health disorders which results in a major health disparity in the local community of Columbus, Georgia. Therefore, the purpose of this assessment was to increase awareness of local vaccination services, strengthen community/regional response to participation in local vaccination services, and ultimately, reduce health disparities and improved health status of persons living with a Severe Persistent Mental Illness and/or Substance Use Disorder. As a result, we collected N=109 surveys and found that 46% of participants have a fear of getting COVID-19 and 47% of participants believe the COVID vaccine is an effective preventative method. However, only 35% of participants want to receive the vaccine as soon as possible while 17% are still unsure. Additionally, 46% of participants believe they do not receive enough information on the vaccine and its safety. Thus, our results indicate there is a need for educational resources for this underserved population
Bipolar Disorder in the Menopausal Transition
PURPOSE OF REVIEW: We review recent data on bipolar disorder in menopausal-aged women, particularly in women undergoing the menopausal transition (MT). We discuss evidence on the severity of symptoms in bipolar women during the MT. Moreover, we address two factors in bipolar disorder and menopausal research: standardized menopausal staging and women\u27s conceptualization of their menopausal and bipolar symptoms.
RECENT FINDINGS: While there are few studies within the last 5 years on bipolar women undergoing the MT, new evidence suggest that mood symptoms in women worsen with progression through the MT. Consistent use of the standardized menopausal staging system can facilitate understanding of the timing of worsening symptoms. Moreover, whether women conceptualize their symptoms as arising from their MT or bipolar disorder can influence whether they seek hormonal therapy or psychiatric treatment, respectively. The MT is a potential time for mood instability in vulnerable women, which can manifest as first-onset development of bipolar disorder or increased symptom severity in women with pre-existing bipolar disorder. Adoption of a standardized menopausal staging may offer novel frameworks for understanding of the role of the MT in bipolar disorder
Extrusion 3D Printing of Polybutyrate-Adipate-Terephthalate-Polymer Composites in the Pellet Form
Fused deposition modelling is a common 3D printing technique used for the freeform fabrication of complex shapes based on polymers. Acrylonitrile butadiene styrene (ABS) is the common material option, though polylactide (PLA) has also proved to be a successful candidate. There is an ever increasing demand to harness new materials as possible candidates for fused deposition. The current research is focused on evaluating polybutyrate-adipate-terephthalate–polymer (PBAT) for fused deposition modelling. Both neat and composite PBAT filled with varying wood flour fillers were experimentally analyzed for 3D printing by extrusion from the pellet forms. The results are positive and the addition of small quantities of the wood flour filler material was found to improve the thixotropic nature of the polymer composite and consequently the inter-strand and inter-layer coalescence
Recommended from our members
The Q175 mouse model of Huntington's disease shows gene dosage- and age-related decline in circadian rhythms of activity and sleep.
Sleep and circadian disruptions are commonly reported by patients with neurodegenerative diseases, suggesting these may be an endophenotype of the disorders. Several mouse models of Huntington's disease (HD) that recapitulate the disease progression and motor dysfunction of HD also exhibit sleep and circadian rhythm disruption. Of these, the strongest effects are observed in the transgenic models with multiple copies of mutant huntingtin gene. For developing treatments of the human disease, knock-in (KI) models offer advantages of genetic precision of the insertion and control of mutation copy number. Therefore, we assayed locomotor activity and immobility-defined sleep in a new model of HD with an expansion of the KI repeats (Q175). We found evidence for gene dose- and age-dependent circadian disruption in the behavior of the Q175 line. We did not see evidence for loss of cells or disruption of the molecular oscillator in the master pacemaker, the suprachiasmatic nucleus (SCN). The combination of the precise genetic targeting in the Q175 model and the observed sleep and circadian disruptions make it tractable to study the interaction of the underlying pathology of HD and the mechanisms by which the disruptions occur
- …