272 research outputs found
Hydrated lime matrix decreases ruminal biohydrogenation of flaxseed fatty acids
Omega-3 fatty acids are essential nutrients for humans, but dietary intake of these
nutrients by many Americans is inadequate due to low consumption of omega-3-rich
foods such as fish, walnuts, and flaxseed. In contrast, per capita consumption of red
meat is relatively high, but these products normally contain only small amounts of
omega-3 fatty acids. Feeding cattle diets that contain omega-3 fatty acids has consistently
increased the proportion of the desirable fats that accumulate in beef. Unfortunately,
the proportion of dietary omega-3 fats that are deposited into beef tissues is
relatively low, because microorganisms within the rumen biohydrogenate the unsaturated
omega-3 fatty acids extensively to produce the saturated fats that are characteristic
of beef fat. Encapsulation of fats has been proposed as a method for improving efficiency
of transfer of omega-3 fats into beef. Encapsulation processes apply a protective
barrier on the surface of fats or fat-containing feeds, which theoretically decreases fats’
susceptibility to microbial biohydrogenation. Protective coatings must remain intact to
retain their functionality, and physical damage to the coatings that occurs with normal
handling can result in poor efficacy because the core material is exposed to microorganisms
in the rumen. Embedding feed particles within a homogeneous protective matrix
constitutes a potentially useful alternative to protective surface barriers. The matrix is
created by mixing feed particles that are to be protected with a suitable matrix material
that is resistant to microbial digestion and subsequently forming the mixture into pills.
In cases where physical damage occurs, exposure of the core material is confined to the
broken surface, and the remainder of the matrix retains its ruminal stability.
The objective of this study was to determine if embedding flaxseed within a matrix of
hydrated dolomitic lime could be used as a method to decrease biohydrogenation of
polyunsaturated omega-3 fatty acids, thus improving efficiency of omega-3 fatty acids
absorption into the bloodstream
The Effect of Foliar Fungicide and Insecticide Application on the Contamination of Fumonisins, Moniliformin and Deoxynivalenol in Maize Used for Food Purposes
The fungal ear rot of maize cultivated in temperate areas is mainly due to the Fusarium species. The use of insecticides against European Corn Borer (ECB) reduces the severity of fungal ear rot as well as the fumonisin (FB) and moniliformin (MON) levels in maize kernels at harvest, which in turn results in a lowering of their effect on deoxynivalenol (DON) control. However, the direct fungicidal control of ear rot has rarely been implemented for maize, and the first studies reported conflicting results on the reduction of mycotoxins. In the present experiment, field trials were carried out in North Italy over three growing seasons to study the effect of fungicide application timings on maize to control mycotoxins, considering the interaction of the application with the insecticide treatment, according to a full factorial split plot design. The mycotoxin content was determined through LC−MS/MS analysis. The field trials showed a significant reduction in ECB severity (75%), fungal ear rot severity (68%), Fusarium Liseola section infection (46%), FBs (75%) and MON (79%) as a result of the insecticide application for all the years, while the DON content increased by 60%. On the other hand, a fungicide application alone or applied in plots protected by an insecticide was never effective for the fungal symptoms, infection or mycotoxin content. The results confirm that a correct insecticide application to control ECB damage is the most effective agrochemical solution for the control of fungal ear rot, FBs and MON
Age estimation in children by measurement of open apices in teeth: a European formula
The aim of the present paper was to improve and
expand research with a larger number of children from various
European countries and to provide a common formula useful
for all these countries. Orthopantomographs taken from 2,652
European Caucasian children (1,382 boys, 1,270 girls) aged
between 4 and 16 years were analyzed. The children came from
Croatia, Germany, Kosovo, Italy, Slovenia, Spain, and the UK.
Following the pilot study, subjects’ age was modeled as a
function of gender (g), morphological variables (predictors)×5
(second premolar), s (sum of normalized open apices) N0, and
the first-order interaction between s and N0. The results
showed that all these variables contributed significantly to
the fit, so that all were included in the regression model,
yielding the following linear regression formula: Age=8.387+
0.282 g−1.692×5+0.835 N0−0.116 s−0.139 s×N0, where
g is a variable, 1 for males and 0 for females. The equation
explained 86.1% (R2=0.861) of total deviance. The median
of the residuals (=observed age minus predicted age) was
−0.114 years, with (RefB.2) interquartile range=1.22 years
Sympathovagal balance and 1-h postload plasma glucose in normoglucose tolerant hypertensive patients.
AIMS:
Normoglucose tolerant (NGT) subjects with a 1-h postload plasma glucose (PLPG) value ≥155 mg/dL have an increased risk of type-2 diabetes and subclinical organ damage. Heart rate variability (HRV) reflects cardiac autonomic balance, frequently impaired in course of diabetes. At this time, no data support the association between 1-h PLPG and HRV; thus, we investigated the possible association between 1-h PLPG and HRV.
METHODS:
We enrolled 92 never-treated hypertensive subjects (56 women, 36 men), aged 55 ± 9.8 years. During OGTT, the patients underwent electrocardiographic recordings to evaluate HRV in the time domain (SDNN). Insulin sensitivity was assessed by Matsuda index.
RESULTS:
Among participants, 56 were NGT, 20 had impaired glucose tolerance (IGT), and 16 had type-2 diabetes. According to the 1-h PLPG cutoff point of 155 mg/dL, we divided NGT subjects into: NGT < 155 (n = 38) and NGT ≥ 155 (n = 18). Glucose tolerance status was associated with a significant (P < 0.0001) increase in PLPG and insulin and the reduction in Matsuda index. In all groups, the SDNN values significantly (P < 0.0001) decreased during the first hour of OGTT. A complete recovery in NGT groups was observed at the end of the second hour; in IGT and type-2 diabetes, SDNN remained significantly lower with respect to baseline values. At multiple regression analysis, Matsuda index resulted in the only determinant of SDNN modification, explaining the 12.3 % of its variability.
CONCLUSIONS:
Our data demonstrate that during OGTT, sympathovagal balance is acutely affected by both glucose and insulin modifications. Particularly, NGT ≥ 155 subjects behave in the same way of IGT and type-2 diabetes patients
Next-Generation Sequencing in Clinical Practice. Is It a Cost-Saving Alternative to a Single-Gene Testing Approach?
Objectives: This study aimed to compare the costs of a next-generation sequencing-based (NGS-based) panel testing strategy to those of a single-gene testing-based (SGT-based) strategy, considering different scenarios of clinical practice evolution. Methods: Three Italian hospitals were analysed, and four different testing pathways (paths 1, 2, 3, and 4) were identified: two for advanced non-small-cell lung cancer (aNSCLC) patients and two for unresectable metastatic colon-rectal cancer (mCRC) patients. For each path, we explored four scenarios considering the current clinical practice and its expected evolution. The 16 testing cases (4 scenarios × 4 paths) were then compared in terms of differential costs between the NGS-based and SGT-based approaches considering personnel, consumables, equipment, and overhead costs. Break-even and sensitivity analyses were performed. Data gathering, aimed at identifying the hospital setup, was performed through a semi-structured questionnaire administered to the professionals involved in testing activities. Results: The NGS-based strategy was found to be a cost-saving alternative to the SGT-based strategy in 15 of the 16 testing cases. The break-even threshold, the minimum number of patients required to make the NGS-based approach less costly than the SGT-based approach, varied across the testing cases depending on molecular alterations tested, techniques adopted, and specific costs. The analysis found the NGS-based approach to be less costly than the SGT-based approach in nine of the 16 testing cases at any volume of tests performed; in six cases, the NGS-based approach was found to be less costly above a threshold (and in one case, it was found to be always more expensive). Savings obtained using an NGS-based approach ranged from €30 to €1249 per patient; in the unique testing case where NGS was more costly, the additional cost per patient was €25. Conclusions: An NGS-based approach may be less costly than an SGT-based approach; also, generated savings increase with the number of patients and different molecular alterations tested
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