Infestation of wild bay scallops Argopecten irradians on Nantucket Island by the shell-boring polychaete Polydora neocaeca.

Shell-boring polychaete worms can severely impact shellfish aquaculture by reducing growth rates and compromising tissue quality of their molluscan hosts. In this study we report the first known instance of shell-infestation of commercially important scallops on Nantucket Island by the cryptogenic polydorid Polydora neocaeca. Additional analyses indicate a high level of genetic connectivity between worms from Nantucket Island and the US mainland, forming a distinct haploclade which is genetically isolated from populations from South Africa and Japan. While transportation of infected seed could have introduced the worm to Nantucket, limited sampling and the paucity of sequence data available makes it impossible to definitely determine its origins.

Special Education Disparities Are Social Determinants of Health: A Role For Medical-Legal Partnerships.

PROBLEM: Education is a key social determinant of health. The federal Individuals with Disabilities Education Act (IDEA) purportedly affords children the right to a free and appropriate education. Yet, racial, ethnic, and economic disparities exist regarding appropriate identification and classification of children with needs for special education, and access to services. PURPOSE: This article first highlights gaps and disparities in special educational services, and their structural linkage to poverty. The second section describe the first years of a medical-legal collaboration between a University Center of Excellence in Developmental Disabilities (UCEDD) and Fordham University, focused on special education. KEY POINTS: The collaboration's interdisciplinary training activities increased practical knowledge for law students and UCEDD clinicians. A legal clinic for UCEDD families enabled Fordham students to apply their skills. CONCLUSIONS: Because social determinants of health often lie beyond the medical domain, interdisciplinary collaborations are needed to remediate them.

Lyme Disease Transmission Risk: Seasonal Variation in the Built Environment.

Seasonal variation in spatial distribution and pathogen prevalence of Borrelia burgdorferi in blacklegged ticks (Ixodes scapularis) influences human population risk of Lyme disease in peri-urban built environments. Parks, gardens, playgrounds, school campuses and neighborhoods represent a significant risk for Lyme disease transmission. From June 2012 through May 2014, ticks were collected using 1 m² corduroy cloths dragged over low-lying vegetation parallel to walkways with high human foot traffic. DNA was extracted from ticks, purified and presence of B. burgdorferi assessed by polymerase chain reaction amplification. Summer is reported as the time of highest risk for Lyme disease transmission in the United States and our results indicate a higher tick density of 26.0/1000 m² in summer vs. 0.2/1000 m² to 10.5/1000 m² in spring and fall. However, our findings suggest that tick infection rate is proportionally higher during the fall and spring than summer (30.0⁻54.7% in fall and 36.8⁻65.6% in spring vs. 20.0⁻28.2% in summer). Seasonal variation in infected tick density has significant implications for Lyme disease transmission as people are less likely to be aware of ticks in built environments, and unaware of increased infection in ticks in spring and fall. These factors may lead to more tick bites resulting in Lyme infection.

Ethnic differences in inter- and intra-situational blood pressure variation: Comparisons among African-American, Hispanic-American, Asian-American, and European-American women.

OBJECTIVES: The purpose of this study was to compare the daily inter- and intra-situational ambulatory blood pressure (BP) variation by ethnicity in women. METHODS: The African-American (N = 82; Age = 39.7 + 8.9), Hispanic-American (N = 25; age = 37.5 + 9.4), Asian-American (N = 22; Age = 35.2 + 8.6), and European-American (N = 122; Age = 37.2+ 9.4) women in this study all worked in similar positions at two major medical centers in NYC. Each wore an ambulatory monitor during the course of one mid-week workday. Proportional BP changes from work or home to sleep, intra-situational BP variation (standard deviation [SD]) and mean situational BP levels were compared among the groups using ANOVA models. RESULTS: African-American and Asian-American women had significantly smaller proportional work-sleep systolic changes than either European- (P < 0.05) or Hispanic-American (P < 0.05) women, but the Asian-American women's changes tended to be smallest. The variability (SD) of diastolic BP at work was significantly greater among African- and Hispanic-American women compared to Asian- and European-American women (all P < 0.05). African-American women had greater sleep variability than European-American women (P < 0.05). Asian-American women had the highest level of sleep diastolic pressure (all comparisons P < 0.05). CONCLUSIONS: African-American and Asian-American women have an attenuated proportional BP decline from waking environments to sleep compared to European-American and Hispanic-American women. Asian-American nocturnal BP may be elevated relative to all other groups. Am. J. Hum. Biol. 28:932-935, 2016. © 2016Wiley Periodicals, Inc.

Daily environmental differences in blood pressure and heart rate variability in healthy premenopausal women.

OBJECTIVES: As daily environments change, behavior and activity also change and as blood pressure (BP) and heart rate (HR) are allostatically tied to these factors, one might expect that environments that elicit the greatest behavioral/activity variation should also evince the highest BP and HR variability [standard deviation (SD) or coefficient of variation (CV)]. The purpose of this study was to evaluate this premise. METHODS: Two hundred and six women (age = 37.6 ± 9.1 years) wore an ambulatory BP monitor on a midweek workday. All worked in clerical, technical, or professional positions. Ambulatory BP and HR Means, SDs and CVs at work (11 AM-3 PM), home (∼6-10 PM) and during sleep (∼10 PM-6 AM) were compared using repeated measures ANCOVA. RESULTS: Mean BP and HR decreased from work and home to sleep [121 ± 11, 120 ± 11 vs. 107 ± 12 systolic; 82 ± 10, 80 ± 11 vs. 66 ± 11 diastolic; 79 ± 12, 80 ± 12 vs. 68 ± 11 HR (all P < 0.001)], while the CV of systolic and diastolic BP increased [0.06 ± 0.02, 0.07 ± 0.02 vs. 0.08 ± 0.03 systolic; 0.09 ± 0.03, 0.10 ± 0.04 vs. 0.12 ± 0.05 diastolic (P < 0.001)]. The HR SD decreased during sleep [8.1 ± 3.8, 8.2 ± 3.8 vs. 6.9 ± 3.2 (P < 0.001)]. CONCLUSIONS: HR variability follows the expected variability pattern with behavior and activity, whereas BP does not.