289 research outputs found
Serum thyroid hormone antibodies are frequent in patients with polyglandular autoimmune syndrome type 3, particularly in those who require thyroxine treatment
Polyglandular autoimmune syndrome (PAS) type 3 consists of autoimmune thyroid
disease (AITD) coexisting with ≥1 non-thyroidal autoimmune disease (NTAID) other
than Addison’s disease and hypoparathyroidism. We evaluated the prevalence and
repertoire of thyroid hormones antibodies (THAb) in PAS-3 patients. Using a radioimmunoprecipation technique, we measured THAb (T3IgM, T3IgG, T4IgM, and T4IgG) in
107 PAS-3 patients and 88 controls (patients with AITD without any NTAID). Based
on the selective coexistence of AITD with one NTAID (chronic autoimmune gastritis,
non-segmental vitiligo or celiac disease), patients were divided into group 1 (chronic
autoimmune gastritis positive, n = 64), group 2 (non-segmental vitiligo positive, n = 24),
and group 3 (celiac disease positive, n = 15). At least one of the four THAb was detected
in 45 PAS-3 patients (42.1%) and 28 controls (31.8%, P = 0.14), with similar rates
in the three PAS-3 groups. The rates of T3Ab, T4Ab, and T3 + T4Ab were similar in
groups 1 and 2, while in group 3, T3Ab was undetected (P = 0.02). In PAS-3 patients,
the rate of levothyroxine treatment was greater in THAb-positive patients compared to
THAb-negative patients (76.7 vs. 56.1%, P = 0.03, RR = 1.4, 95% CI 1.03–1.81). Not
unexpectedly, levothyroxine daily dose was significantly higher in group 1 and group 3,
namely in patients with gastrointestinal disorders, compared to group 2 (1.9 ± 0.4 and
1.8 ± 0.3 vs. 1.5 ± 0.2 μg/kg body weight, P = 0.0005 and P = 0.004). Almost half of
PAS-3 patients have THAb, whose repertoire is similar if chronic autoimmune gastritis
or celiac disease is present. A prospective study would confirm whether THAb positivity
predicts greater likelihood of requiring levothyroxine treatment
What's in organic wine consumer mind? A review on purchasing drivers of organic wines
Consumer interest in organic wine is growing, but the effects of organic label, consumer quality perception and the support for the benefits claim of organic wine are not yet fully understood and at times doubtful. The literature shows a very heterogeneous picture regarding consumer behaviour and preferences for organic wine. This study seeks to understand the link between organic wine and consumer' purchasing drivers. Using a systematic literature review, the paper explores the characteristics of consumer of organic wine, the motivation on consumer behaviour and preferences for organic wine, as well as the sensory quality and the presence of additives when evaluating wine quality and in shaping consumers' attitudes. The results show how socio-economic and psychological characteristics of consumer as well as quality perception affect their behaviour for organic wine. Little consensus on the benefits in terms of improved sensory quality of organic wine compared to conventional one. Among sensory qualities, taste has been found to be both a key driver and barrier to organic wine consumption. Based on literature studies, consumers have positive opinions toward organic wine, which is perceived as healthy and environmental friendly. However, despite the growing market interest in wine, scientific information about the organoleptic differences between conventional and organic remains scarce and the topic requires more in-depth analysis. Understanding the profile of consumer and the factors that influence consumer' behaviour provide information to the organic wine industry
The role of credence attributes in consumer choices of sustainable fish products: A review
This review aims to assess consumer choices of sustainable fish products, considering a number of attributes that have been considered in the academic literature on this topic. In order to examine the effectiveness of sustainable labels, the research question was focused on the relation between sustainable fish labels and consumers’ willingness to pay (WTP). The findings showed how, overall, consumers have positive perceptions regarding sustainable fish products and show a willingness to pay a premium price for the attribute of sustainability. According to the results, the country of origin attribute was found to be the most important attribute in relation to consumer choice. The results indicated a high WTP for local fish products, relative to imported alternatives. Consumers prefer wild-caught fish for its perceived quality, better safety and health aspects, and taste perception than the farm-raised option. As for animal welfare, the results show that consumers are willing to pay a moderate premium price for products that have an improved fish welfare or those that avoid by-catch, such as products with eco-labels like “turtle safe”. With regard to organic labels, the studies identified a positive organic price premium for fish products. However, organic labels do not play a major role in consumer choice, when compared with other attributes
Dermoscopy and methyl aminolevulinate: A study for detection and evaluation of field cancerization
Actinic keratosis (AK) is a keratinocyte intraepidermal neoplasia UV light
–
induced that frequently appears in
sun-exposed areas of the skin. Although historically AK was de
fi
ned as
“
precancerous
”
, actually it is considered
as the earliest stage of squamous cell carcinoma (SCC) in situ. Since AKs can progress into invasive SCC, their
treatment isrecommended. AKsrarely developasa singlelesion;usually multiplelesions commonly affect anen-
tire area of chronically actinic damaged skin. This has led to the concept of
“
fi
eld cancerization
”
, an area chroni-
cally sun-exposed that surrounds peripherally visible lesions, in which are individualized subclinical alterations.
One of the main principles endpoint in the management of AKs is the evaluation and the treatment of
fi
eld
cancerization. In this view, in order to detect and quantify
fi
eld cancerization, we employed a method based
on the topical application of methyl aminolevulinate (MAL) and the detection of the
fl
uorescence emitted by
its metabolite Protoporphyrin IX (PpIX); then, considering the extension and the intensity of measured
fl
uores-
cence, we create a score of
fi
eld cancerization. The results show that patients underwent to daylight PDT had a
reduction of total score, from T0 to T2. Whereas in the group untreated we observed a stability of total score or
a slightly worse. So, the method and the score used allows to evaluate with a good approximation the dimension
of
fi
eld cancerization and show the modi
fi
cation of it after treatment
The role of individual knowledge in functional olive oil preferences: Does self-coherence lead to different health attributes perception?
This study examined whether health cues influence the choices of olive oil consumers with different degrees of knowledge about the nutritional properties of olive oil. To this end, a direct survey on the consumption of healthy extra-virgin olive oil was implemented by examining the stated preferences of a sample of consumers. Two econometric analyses were carried out to identify the drivers of the consumption of olive oil with high polyphenol content. The logisticmodel was chosen as the most suitable method to answer the research questions. The results revealed a general consensus among consumers regarding the beneficial properties of olive oil consumption. Moreover, the findings show that different degrees of individual knowledge act as distinctive drivers in influencing the health perception of olive oil consumers. Finally, this study verified that, even for healthy foods, consumers' choices are strongly dependent on their own self-coherence. As a consequence, consumers' knowledge or beliefs that orientate their attitudes are influenced by different motivations and attributes
Exploring Purchasing Determinants for a Low Fat Content Salami: Are Consumers Willing to Pay for an Additional Premium?
Consumers today are increasingly moving toward healthier lifestyles and food purchasing habits. This new awareness has also prompted the meat industry, usually indicted for the use of harmful compounds and ingredients such as additives, salt, and fat, to introduce innovative measures to meet demand. This study aims to assess consumer willingness to pay an additional price premium (APP) for a healthy salami by identifying which factors are more likely to have an effect on the willingness to purchase, such as socio-demographic and product and market-related attributes. An Ordered Logit model has been applied to define factors influencing consumers' willingness to pay for a low-fat salami. Results show a favorable consumer acceptance of reduced-fat salami conveyed by the willingness of consumers to pay an additional price for this product and confirm that the health awareness of consumers is an important driving force in cured meat marketing strategies
Human- or object-like? Cognitive anthropomorphism of humanoid robots
Across three experiments (N = 302), we explored whether people cognitively elaborate humanoid robots as human- or object-like. In doing so, we relied on the inversion paradigm, which is an experimental procedure extensively used by cognitive research to investigate the elaboration of social (vs. non-social) stimuli. Overall, mixed-model analyses revealed that full-bodies of humanoid robots were subjected to the inversion effect (body-inversion effect) and, thus, followed a configural processing similar to that activated for human beings. Such a pattern of finding emerged regardless of the similarity of the considered humanoid robots to human beings. That is, it occurred when considering bodies of humanoid robots with medium (Experiment 1), high and low (Experiment 2) levels of human likeness. Instead, Experiment 3 revealed that only faces of humanoid robots with high (vs. low) levels of human likeness were subjected to the inversion effects and, thus, cognitively anthropomorphized. Theoretical and practical implications of these findings for robotic and psychological research are discussed
Circular economy models in agro-food systems: A review
Around the world, interest is growing in the circular economy in response to the current unsustainable model of production and consumption based on increased use and depletion of resources. This paper provides a review of the academic literature on the circular economy in agri-food systems, with the aims of understanding its main characteristics and perspectives, and summarizing and discussing the literature in this field. This review provides a deeper understanding of the opportunities provided by the circular economy as a solution to the current need to reduce the environmental impacts of business-as-usual economic systems and the state of the art of the circular economy in the academic debate. The results are discussed based on the chosen topiccore investigated in this review: business model and organization management, food loss and waste along the supply chain, analytical tools for the circular economy, stakeholder acceptance of the circular economy, and mitigation strategies and political approach. The findings show the need for the implementation of cleaner production models and consequent increases in stakeholder responsibilities and awareness, from both producers and consumers, as well as the need for the implementation of suitable policies and tools
AUTOPHAGY AND APOPTOSIS MODULATION BY AQUEOUS EXTRACTS FROM LEAVES AND RHIZOMES OF Posidonia oceanica ON HEPG2 HEPATOCARCINOMA CELLS
The silencing of TdIPK1 genes enhances micronutrient concentration in durum wheat grain
Phytic acid (PA) is the main storage form of phosphorus in kernel and is considered an anti-nutritional compound because of its ability to bind to essential minerals such as iron (Fe), zinc (Zn), potassium (K), calcium (Ca) and magnesium (Mg), thus limiting their availability, especially for populations whose diet is largely based on staple crops.
This study reports a promising nutrient biofortification approach of durum wheat. The approach was based on the silencing of the gene encoding the inositol pentakisphosphate 2- kinase 1 (IPK1), involved in the last step of the PA biosynthetic pathway, through a Targeting Induced Local Lesions IN Genomes (TILLING) approach. Single knockout mutants for the IPK1 homeoalleles were identified and crossed to pyramid the two mutations. Although an elevated number of plants (F2 and F3 progenies) were analysed, no genotypes lacking both the homeoalleles were recovered, suggesting that the expression of IPK1 is crucial for seed formation in the spike and/or for plant germination and development.
The characterization of the single null genotypes highlighted that the partial TdIPK1-B1- mutants showed a lower accumulation of PA in the kernel along with a higher content of essential microelements (Fe, Mn, Zn) compared to the control wild-type. The pattern of mineral accumulation was different for the TdIPK1-A1- mutants which only presented a greater accumulation of K
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