Search results for "nutrient"

Data from: Grazing decreases N partitioning among coexisting plant species

2018

1. Herbivores play a key role in shaping ecosystem structure and functions by influencing plant and microbial community composition and nutrient cycling. 2. This study investigated the long-term effects of herbivores on plant resource acquisition. We explored differences in the natural δ15N signatures in plant, microbial and soil N pools, and examined mycorrhizal colonization in two tundra sites that have been either lightly or heavily grazed by reindeer for more than 50 years. The study examined changes in nutrient acquisition in five common tundra plants with contrasting traits and mycorrhiza status; the mycorrhizal dwarf shrubs, Betula nana, Vaccinium myrtillus and Empetrum hermaphroditu…

Data from: Phosphorus limitation enhances parasite impact: feedback effects at the population level

2014

Background: Nutrient deficiency affects the growth and population dynamics of consumers. Endoparasites can be seen as consumers that drain carbon (C) or energy from their host while simultaneously competing for limiting resources such as phosphorus (P). Depending on the relative demands of the host and the parasite for the limiting nutrient, intensified resource competition under nutrient limitation can either reduce the parasite?s effect on the host or further reduce the fitness of the nutrient-limited host. So far, knowledge of how nutrient limitation affects parasite performance at the host population level and how this affects the host populations is limited. Results: We followed the po…

Standard and Specialized Infant Formulas in Europe: Making, Marketing, and Health Outcomes

2019

Infant formulas are the only suitable substitute for human milk. The most common infant formulas are standard formulas based on cow's milk. In addition, there are formulas for infants showing signs and symptoms of intolerance and for clinical conditions such as allergy, prematurity, and gastrointestinal diseases. A comprehensive review of the literature was made to review the composition of standard and specialized infant formulas and analyze indications for use, real or presumed nutrition differences and properties, and impact on infant growth. A brief consideration on costs is outlined for each formula. Over the past few years, industrial production and advertising of infant formulas have…

Food consumption and nutrient intakes with a special focus on milk product consumption in early pubertal girls in Central Finland

2005

AbstractObjectiveTo evaluate the current status of dietary intakes in early pubertal girls with a special focus on milk products.DesignCross-sectional data using 3-day food records.SubjectsEight hundred and sixty girls, aged 10–12 years, at Tanner maturation stage I-III.ResultsThe mean consumption of milk products (620 g day−1) was similar to that of a Finnish study in the 1980s, while the consumption of non-milk drinks (403 gday−1) had increased. Twelve per cent of the girls had a dairy-restricted diet and consumed significantly less milk products than girls with a non-restricted diet (465 vs. 644 g day−1, P<0.001). Girls with low milk product consumption had the highest non-milk drinks…

Diet and Gallstones in Women of a Rural Town of Sicily

1997

To test the possible association between dietary factors and gallstones, we performed a case-control study on the dietary habits of 71 women with gallstones in a rural area of Sicily (mean age 63.2 years) and compared these with 142 women who did not have gallstones (mean age 63.6 years) selected at random from the same general population. The dietary questionnaire, based on data collected over 7 days, was carefully compiled by two dieticians specially trained for the study. The daily calorie intake was higher in the women with gallstones ( p= 0.006) and was equally distributed between fats, carbohydrates and proteins. The intakes of unsaturated fats ( p= 0.03), unrefined sugars ( p= 0.01) …

Utilizing nutritional genomics to tailor diets for the prevention of cardiovascular disease: a guide for upcoming studies and implementations.

2017

Introduction: Personalized diets based on an individual’s genome to optimize the success of dietary intervention and reduce genetic cardiovascular disease (CVD) risk, is one of the challenges most frequently discussed in the scientific community. Areas covered: The authors gathered literature-based evidence on nutritional genomics and CVD phenotypes, our own results and research experience to provide a critical overview of the current situation of using nutritional genomics to tailor diets for CVD prevention and to propose guidelines for future studies and implementations. Expert commentary: Hundreds of studies on gene-diet interactions determining CVD intermediate (plasma lipids, hypertens…

Do nutritional supplements have a role in age macular degeneration prevention?

2013

Purpose. To review the proposed pathogenic mechanisms of age macular degeneration (AMD), as well as the role of antioxidants (AOX) and omega-3 fatty acids (ω-3) supplements in AMD prevention.Materials and Methods. Current knowledge on the cellular/molecular mechanisms of AMD and the epidemiologic/experimental studies on the effects of AOX andω-3 were addressed all together with the scientific evidence and the personal opinion of professionals involved in the Retina Group of the OFTARED (Spain).Results. High dietary intakes ofω-3 and macular pigments lutein/zeaxanthin are associated with lower risk of prevalence and incidence in AMD. The Age-Related Eye Disease study (AREDS) showed a benefic…

Effect of liraglutide on intragastric pressure (IGP) and satiation during intragastric nutrient drink infusion in healthy volunteers

2011

Dietary intake of nutrients of great interest in immunonutrition to prevent muscle damage in soccer players

2008

Soccer is a sport in which players are exposed to long-term periods of training and players need to augment strength and fat-free massgains by resistance training, minimize muscle damage and soreness and help to improve endurance. Recently, the incidence of injuries hasincreased during and preceding soccer matches, which inuences the effectiveness of the team. One study

Prenatal manganese serum levels and neurodevelopment at 4 years of age

2020

Abstract Background The excess of manganese (Mn) causes severe deleterious effects in the central nervous system, and the developing brain is especially sensitive to Mn overload. However, results of prospective studies regarding Mn neurodevelopmental effects remain inconclusive. The present study aims at studying the association of prenatal Mn exposure and neurodevelopment at 4–5 years of age. Methods: Mn serum concentration was measured in 1465 pregnant women from the INMA (INfancia y MedioAmbiente, Environment and Childhood) Project. Neurodevelopment was assessed using a standardized version of the McCarthy Scales of Children's Abilities (MSCA). Multivariate regression models were used fo…