Publications by authors named "John Knopf"

Human genetics, biomarker, and animal studies implicate loss of function in bone morphogenetic protein (BMP) signaling and maladaptive transforming growth factor-β (TGFβ) signaling as drivers of pulmonary arterial hypertension (PAH). Although sharing common receptors and effectors with BMP/TGFβ, the function of activin and growth and differentiation factor (GDF) ligands in PAH are less well defined. Increased expression of GDF8, GDF11, and activin A was detected in lung lesions from humans with PAH and experimental rodent models of pulmonary hypertension (PH).

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Context: Children from low-income and racial or ethnic minority populations in the U.S. are less likely to have a conventional source of medical care and more likely to develop chronic health problems than are more-affluent and non-Hispanic white children.

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Context: Children in low-income and racial and ethnic minority families often experience delays in development by 3 years of age and may benefit from center-based early childhood education.

Design: A meta-analysis on the effects of early childhood education by Kay and Pennucci best met Community Guide criteria and forms the basis of this review.

Results: There were increases in intervention compared with control children in standardized test scores (median = 0.

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Context: Low-income and minority status in the United States are associated with poor educational outcomes, which, in turn, reduce the long-term health benefits of education.

Objective: This systematic review assessed the extent to which out-of-school-time academic (OSTA) programs for at-risk students, most of whom are from low-income and racial/ethnic minority families, can improve academic achievement. Because most OSTA programs serve low-income and ethnic/racial minority students, programs may improve health equity.

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Context: Health insurance benefits for mental health services typically have paid less than benefits for physical health services, resulting in potential underutilization or financial burden for people with mental health conditions. Mental health benefits legislation was introduced to improve financial protection (i.e.

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Background: Health insurance plans have historically limited the benefits for mental health and substance abuse (MH/SA) services compared to benefits for physical health services. In recent years, legislative and policy initiatives in the U.S.

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Context: High school completion (HSC) is an established predictor of long-term morbidity and mortality. U.S.

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