Prevalence of cancer survivors in the United States.

BACKGROUND: With aging of the population and improvements in diagnosis, treatment, and supportive care, the number of cancer survivors in the United States (US) has increased; updated prevalence estimates are needed. METHODS: Cancer prevalence on January 1, 2022 was estimated using the Prevalence Incidence Approach Model, utilizing incidence, survival, and mortality. Prevalence by age decade, sex, and time from diagnosis were calculated. The percentage of cancer survivors in the projected US population by age and sex was calculated as the ratio of the sex-specific projected prevalence to the sex-specific projected US population. RESULTS: There were an estimated 18.1 million US cancer survivors as of January 1, 2022. From 2022 to 2030, the number of US cancer survivors is projected to increase to 21.6 million; by 2040, the number is projected to be 26 million. Long-term survivors are highly prevalent; in 2022, 70% of cancer survivors survived 5 years or more after diagnosis, and 11% of cancer survivors survived 25 years or more after diagnosis. Among all US females aged 40-54, 3.6% were cancer survivors; among females aged 65-74, 14.5% were cancer survivors; among females aged 85 and older, 36.4% were cancer survivors. Among all US males aged 40-54, 2.1% were cancer survivors; among males aged 65-74, 16% were cancer survivors; among those aged 85 and older, 48.3% were cancer survivors. CONCLUSIONS: Cancer survivors are growing in number. In the US, most cancer survivors are long-term and very long-term survivors, representing a significant proportion of the US population.

Advancing health equity in cancer survivorship research: National Institutes of Health 2017-2022 portfolio review.

BACKGROUND: Communities and researchers have called for a paradigm shift from describing health disparities to a health equity research agenda that addresses structural drivers. Therefore, we examined whether the cancer survivorship research portfolio has made this shift. METHODS: We identified grants focused on populations experiencing health disparities from the National Institutes of Health (NIH) Cancer Survivorship Research Portfolio (N = 724), Fiscal Years 2017-2022. Grant characteristics were abstracted, drivers of health disparities were mapped onto the levels and domains of influence, and opportunities for future research were identified. RESULTS: A total of 147 survivorship grants focused on health disparities were identified, of which 73.5% of grants focused on survivors from racial and ethnic minoritized groups, 25.9% living in rural areas, 24.5% socioeconomically disadvantaged, and 2.7% sexual and gender minority groups. Study designs were 51.0% observational; 82.3% of grants measured or intervened on at least 1 individual-level of influence compared to higher levels of influence (32.7% interpersonal, 41.5% institutional and community, and 12.2% societal). Behavioral and health care system domains of influence were commonly represented, especially at the individual level (47.6% and 36.1%, respectively). Less frequently represented was the physical and built environment (12.2%). CONCLUSIONS: NIH-funded cancer survivorship research on health disparities is still focused on individual level of influence. However, the proportion of grants examining structural and social drivers as well as the mechanisms that drive disparities in health care and health outcomes among cancer survivors have increased over time. Gaps in funded research on specific populations, cancer types, and focus areas of survivorship science were identified and warrant priority.

Cardiovascular Disease in the Nation's Capital: How Policy and the Built Environment Contribute to Disparities in CVD Risk Factors in Washington, D.C.

On average, Washington D.C. residents experience low levels of cardiovascular disease (CVD) behavioral risk factors compared to the rest of the country. Despite presenting as a city of low risk, CVD mortality is higher than the national average. Driving this inconsistency are vast racial disparities as Black D.C. residents die from CVD at a much higher rate than their White counterparts. A closer examination of the data also reveals significant disparities between White and Black populations with regard to behavioral risk factors. Segregation and the built environments of sections of the city with large Black populations may be contributing to risk factor disparities. We examine factors in those built environments that contribute to disparities and assess the intentionality and effectiveness of policies focused on food access, physical activity, and tobacco use implemented between 2003 and 2014. We found that D.C. enacted few policies intentionally designed to reduce barriers in the physical environment that contributed to disparate outcomes, and the few that were implemented showed mixed results in their levels of effectiveness. Our findings demonstrated that both racial and geographical disparities have persisted for more than a decade and half. It is possible that the formation of intentional policies may help reduce barriers in the physical environment and disparate CVD outcomes.

Health Policy Responsiveness: Lessons Learned from Maryland and Prince George's County.

Effective, timely, and intentional policy efforts can significantly impact and improve the public's health and reduce racial and ethnic health disparities across the nation. Creating and implementing responsive policies at the state and county level is essential to supporting community efforts to improve health behaviors and health outcomes, particularly for communities of color who bear the brunt of disease risk and negative health outcomes. Using policy examples from the State of Maryland and Prince George's County, the largest and wealthiest predominately African-American county in the USA, this case study highlights the importance of state and county policy action when presented with opportunities to affect long-lasting, positive change. We examine each jurisdiction's policy response through the lens of timeliness, intentionality, and effectiveness. At first glance, it would appear that Maryland responded effectively to the rise in tobacco use. Similarly, at face value, it appears that Prince George's County's unchecked rise in obesity rates among African-Americans is an example of nonresponsiveness among local policymakers in the face of an obesity epidemic. However-guided by a more nuanced understanding of "policy responsiveness"-this analysis uncovers a more revealing picture, with important strengths and limitations seen in both policy situations. This analysis raises critical questions about the determinants of jurisdictions' health policy capacity and how policymakers might best be supported in their efforts to build an arsenal of health policies that are timely, effective, and intentional in meeting the needs of vulnerable communities.

The alpha7 nicotinic acetylcholine receptor subunit exists in two isoforms that contribute to functional ligand-gated ion channels.

Fast synaptic transmission in mammalian autonomic ganglia is mediated primarily by nicotinic receptors, and one of the most abundant nicotinic acetylcholine receptor subtypes in these neurons contains the alpha7 subunit (alpha7-nAChRs). Unlike alpha7-nAChRs expressed in other cells, the predominant alpha7-nAChR subtype found in rat intracardiac and superior cervical ganglion neurons exhibits a slow rate of desensitization and is reversibly blocked by alpha-bungarotoxin (alphaBgt). We report here the identification of an alpha7 subunit sequence variant in rat autonomic neurons that incorporates a novel 87-base pair cassette exon in the N terminus of the receptor and preserves the reading frame of the transcript. This alpha7 isoform was detected using reverse transcriptase-polymerase chain reaction techniques in neonatal rat brain and intracardiac and superior cervical ganglion neurons. Immunoblot experiments using a polyclonal antibody directed against the deduced amino acid sequence of the alpha7-2 insert showed a pattern of expression consistent with alpha7-2 subunit mRNA distribution. Moreover, the alpha7-2 subunit could be immunodepleted from protein extracts by solid-phase immunoprecipitation techniques using the anti-alpha7 monoclonal antibody 319. The alpha7-2 subunit was shown to form functional homomeric ion channels that were activated by acetylcholine and blocked by alpha-bungarotoxin when expressed in Xenopus laevis oocytes. This alpha7 isoform exhibited a slow rate of desensitization, and inhibition of these channels by alphaBgt reversed rapidly after washout. Taken together, these data indicate that the alpha7-2 subunit is capable of forming functional alphaBgt-sensitive acetylcholine receptors that resemble the alpha7-nAChRs previously identified in rat autonomic neurons. Furthermore, the distribution of the alpha7-2 isoform is not limited to peripheral neurons.