Risk factors associated with subsequent initiation of cigarettes and e-cigarettes in adolescence: A structural equation modeling approach.

Background: Previous youth tobacco research has identified multiple correlated risk factors for initiation of cigarette and e-cigarette use; whether these factors are independently associated with initiation is not known, due to challenges with disentangling the independent effects of these correlated risk factors.

Methods: Students in 11/12 grade enrolled in the Southern California Children's Health Study were surveyed in 2014 (baseline) and again in 2015 (N = 1553). Structural equation models (SEM) were developed to investigate associations of susceptibility, marketing, and the social environment (as latent factors), and other tobacco use at baseline with cigarette or e-cigarette initiation between baseline and follow-up.

Tobacco regulatory compliance with STAKE Act age-of-sale signage among licensed tobacco retailers across diverse neighborhoods in Southern California.

Introduction: The California Stop Tobacco Access to Kids Enforcement (STAKE) Act requires licensed tobacco retailers to post minimum age-of-sale signage at the point of sale. This study investigated STAKE Act compliance in licensed tobacco retailers across four racial/ethnic communities in Southern California.

Methods: The sample consisted of 675 licensed tobacco retailers (excluding chain store supermarkets and pharmacies) randomly selected based on zip codes from predominantly non-Hispanic White (n=196), African American (n=193), Hispanic/Latino (n=186), and Korean American (n=100) communities.

Disparities in retail marketing for little cigars and cigarillos in Los Angeles, California.

Introduction: Evidence of a concentration of cigarette advertising in predominantly low-income, non-White neighborhoods underscores the need to examine retail marketing and promotions for novel tobacco products like little cigars and cigarillos (LCCs). We sought to investigate neighborhood racial/ethnic disparities in LCC marketing at retail, including availability, advertising, price promotions, and product placement in Los Angeles, California.

Methods: Between January 2016 and April 2017, community health workers (n = 19) conducted in-person observational audits from tobacco retail stores (n = 679) located in zip codes with a high percentage of non-Hispanic White (n = 196), Black (n = 194), Hispanic/Latino (n = 189), or Korean American (n = 100) residents.

Retailers' Perceptions of FDA Tobacco Regulation Authority.

Objectives: Research is limited on tobacco retailers' perceptions of the Food and Drug Administration's (FDA) tobacco regulatory authority overall, and less exists related to retailers in predominantly African-American or other racial/ethnic neighborhoods. We assessed differences in perceptions of the FDA's tobacco regulatory authority and barriers to compliance among retailers in African-American and non-African-American neighborhoods in Los Angeles, California.

Methods: Overall, 700 tobacco retailer interviews assessed demographic characteristics and perceptions of the FDA.

Retail marketing for chewing tobacco in Los Angeles, California.

Introduction: Retail marketing for chewing tobacco may be different across racial/ethnic neighborhoods, possibly leading to diverging patterns of use and disparate health risks relating to consumption. This study aimed to compare the frequencies of available chewing tobacco, available flavored chewing tobacco, price promotions, and exterior advertisements in tobacco retail stores in Los Angeles, California.

Methods: In-person observational audits from tobacco retail stores (n=679) located in predominantly non-Hispanic White (n=196), non-Hispanic Black/African American (n=194), Hispanic/Latino (n=189), or Korean American (n=100) neighborhoods were conducted between January 2016 and April 2017.

Point-of-sale marketing of little cigars and cigarillos on and near California Tribal lands.

Introduction: American Indians have the highest cigarette smoking prevalence of any racial/ethnic group in the USA. Tobacco marketing at point-of-sale is associated with smoking, possibly due to easy access to cheap tobacco products. The sale of novel tobacco products like little cigars/cigarillos (LCCs) has increased in recent years which may further increase combustible tobacco use among American Indians.

Treadmill exercise modifies dopamine receptor expression in the prefrontal cortex of the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-lesioned mouse model of Parkinson's disease.

Parkinson's disease (PD) is the second most common neurodegenerative disorder for which there is no cure. PD is a dopamine (DA)-deficit disorder marked by progressive motor and nonmotor disturbances, including cognitive impairment. Executive function (EF) is the most common subtype of cognitive impairment in PD and consists of deficits in number of processes including behavioral flexibility.

Communication Delays Impact Behavior and Performance Aboard the International Space Station.

Introduction: Long-duration space explorations will involve significant communication delays that will likely impact individual and team outcomes. However, the extent of these impacts and the appropriate countermeasures for their mitigation remain largely unknown. This study examined the feasibility and acceptability of utilizing the International Space Station (ISS) as a research platform to assess the impacts of communication delays on individual and team behavior and performance.

Prevalence of neurobehavioral, social, and emotional dysfunction in patients treated for childhood craniopharyngioma: a systematic literature review.

Background: Craniopharyngiomas (CP) are locally invasive and frequently recurring neoplasms often resulting in neurological and endocrinological dysfunction in children. In addition, social-behavioral impairment is commonly reported following treatment for childhood CP, yet remains to be fully understood. The authors aimed to further characterize the prevalence of neurobehavioral, social, and emotional dysfunction in survivors of childhood craniopharyngiomas.