نتایج جستجو برای: epigentic modification

تعداد نتایج: 127356  

Journal: :Public health nutrition 2002
Katrina Giskes Gavin Turrell Carla Patterson Beth Newman

OBJECTIVES To determine whether socio-economic groups differ in their fruit and vegetable consumption, and the variety eaten, and whether socio-economic differences are similar for adolescents and adults. The study also examined whether socio-economic groups vary in their reported desire to increase the amount of fruit and vegetables consumed, and the perceived barriers to achieving this. DES...

Journal: :Carcinogenesis 2014
Zongli Xu Jack A Taylor

Epigenetic marks are extensively altered in cancer but may also change in normal tissues with age, which is the primary risk factor for most cancers. We conducted an epigenome-wide study to identify age-related methylation sites and examine their relationship to cancer and other underlying epigenetic marks. We analyzed 1006 blood DNA samples of women aged 35-76 years from the Sister Study and f...

Journal: :Chemical communications 2012
Yongqiang Wen Linfeng Chen Wenzhong Wang Liping Xu Hongwu Du Zhiliang Zhang Xueji Zhang Yanlin Song

A flexible strategy for the preparation of nanostructures of gold nanoparticles (AuNPs) through DNA directed assembly has been proposed. This strategy would greatly enhance the stability, precision and flexibility in the construction of DNA-base structural and functional devices, and promote the development of DNA nanotechnology.

Journal: :Collegium antropologicum 2007
Lisa Renee Pawloski Jean Burley Moore

This research examines the impact of a nutrition education intervention program on the nutritional status and knowledge of Nicaraguan adolescent girls. Anthropometric measurements, hemoglobin values, and data concerning nutritional knowledge were collected from adolescent girls living in Managua, Nicaragua. Using a pre-test/post-test design, data are compared prior to and after the nutrition in...

Journal: :Compendium 2009
Kathryn E Michel

Proper dietary management is essential to pet health, yet changing pet owners' feeding practices is often difficult. Taking a diet history provides an opportunity to open a dialogue about animals' dietary needs as well as invaluable information that will aid in tailoring specific dietary interventions to the needs and preferences of patients and their caregivers.

Journal: :Genetics 1964
J D MOHLER G S SWEDBERG

HE analysis of adult phenotypic differences resulting from experimental or genetic modification of a developing system sometimes yields a useful description of the course of development in that system. Such a description may include, explicitly or not, the ontogenies of the ultimate character differences; therefore, it is desirable that the basic information should include the morphological fac...

Journal: :Public health nutrition 2009
Elizabeth Baillie Christel Bjarnholt Marlies Gruber Roger Hughes

OBJECTIVES To describe a conceptual framework to assist in the application of capacity-building principles to public health nutrition practice. DESIGN A review of the literature and consideration of the determinants of effective public health nutrition practice has been used to inform the development of a conceptual framework for capacity building in the context of public health nutrition pra...

Journal: :Economics and human biology 2016
Andrew S Griffen

This paper estimates a height production function using data from a randomized nutrition intervention conducted in rural Guatemala from 1969 to 1977. Using the experimental intervention as an instrument, the IV estimates of the effect of calories on height are an order of magnitude larger than the OLS estimates. Information from a unique measurement error process in the calorie data, counterfac...

Journal: :Nature chemical biology 2016
Luke Cuculis Zhanar Abil Huimin Zhao Charles M Schroeder

Transcription activator-like effector (TALE) proteins are a class of programmable DNA-binding proteins used extensively for gene editing. Despite recent progress, however, little is known about their sequence search mechanism. Here, we use single-molecule experiments to study TALE search along DNA. Our results show that TALEs utilize a rotationally decoupled mechanism for nonspecific search, de...

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