Search results

1 – 10 of 18

Abstract

Purpose

The purpose of this study is to evaluate the nutritional effects in Wistar rats of supplementation with stand-alone saturated fatty acid (SFA) or monounsaturated fatty acid (MUFA), the replacement of SFA by MUFA and the combination of both (SFA + MUFA) over a long period of time (13 weeks).

Design/methodology/approach

In total, 30 Wistar rats were used and randomly assigned to receive (n = 6): control – lab chow; lard (L20%) – lab chow with added lard (20%); olive oil (O20%) – lab chow with added olive oil (20%); lard replacement with olive oil (L20% –O20%) – during six weeks lab chow with added lard (20%) replaced by lab chow with added olive oil (20%) given during the past seven weeks of the trial; lard combination with olive oil (L10% + O10%) – lab chow with added lard (10%) and olive oil (10%). Food and caloric intake, weight gain, food and energy efficiency, body mass index, bone mineral composition and blood biochemistry were evaluated.

Findings

All diets with added fatty acids showed higher energy intake (p < 0.001), weight gain (p = 0.01), accumulation of adipose tissue (p = 0.02) and food and energy efficiency (p = 0.01) compared to the control group. All groups exhibited higher levels of blood triglycerides compared to the control group (p = 0.02). In addition, the L10% + O10% group developed hyperglycemia (p < 0.001); the L group showed higher amounts of non- high density lipoprotein (HDL-c) (p = 0.04); and the L20%−O20% group exhibited high levels of the triglyceride/HDL-c ratio (p = 0.04) in relation to the control.

Originality/value

These results indicate that regardless of the fatty acid type, consumption in large quantities of fatty acids for long periods of time can cause obesity and dyslipidemia.

Details

Nutrition & Food Science , vol. 51 no. 5
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 13 August 2019

Amanda Escobar, Arthur Rocha-Gomes, Clarisse Giovana Maciel dos Reis, Kiara Nubia Silva Herrera, Tiago de Jesus Guedes, Alexandre Alves da Silva, Mayara Rodrigues Lessa, Nísia Andrade Villela Dessimoni-Pinto and Tania Regina Riul

The purpose of this study is to evaluate the chemical composition of unripe banana flour from Southeast Brazil and verify its nutritional, physiological and biochemical properties…

Abstract

Purpose

The purpose of this study is to evaluate the chemical composition of unripe banana flour from Southeast Brazil and verify its nutritional, physiological and biochemical properties in adult Wistar rats.

Design/methodology/approach

Analysis of soluble solids, titratable acidity, pH, moisture, ash, lipids, proteins, carbohydrate, resistant and total starch and energy was obtained. In all, 18 male Wistar rats were given different concentrations of unripe banana flour (0, 10 and 20 per cent) and these assessments were performed: feed, caloric and water intake; weight gain; coefficient of food efficiency; weight of organs; body, tibia and femur length; total mineral of bones; and biochemistry of blood, hepatic fluids and feces.

Findings

Unripe banana flour showed a potential for weight control as well as increased fecal cholesterol excretion. These results showed the potential of unripe banana flour for obesity treatment and lipid excretion. Nevertheless, plasma triacylglycerol levels increased in the animals that received the largest amount of banana flour (20 per cent w/w), possibly because of the large amount of resistant starch in the flour, indicating the need for additional studies to confirm the mechanisms responsible for this increase.

Originality/value

Unripe banana flour may promote beneficial health effects (such as weight control and increased elimination of cholesterol in feces); however, the large amount of resistant starch present may be responsible for an increase in blood triacyglycerol.

Details

Nutrition & Food Science, vol. 50 no. 1
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 27 July 2020

Letícia Fernandes Gomes, Sibelle Aparecida Madureira Costa, Arthur Rocha-Gomes, Amanda Escobar Teixeira, Alexandre Alves da Silva, Mayara Rodrigues Lessa, Nísia Andrade Villela Dessimoni-Pinto, Sergio Ricardo Stuckert Seixas and Tania Regina Riul

The purpose of this paper is to evaluate the pathological, biochemical and redox state parameters of liver tissue in Wistar rats treated from birth to adulthood (119 days) with…

Abstract

Purpose

The purpose of this paper is to evaluate the pathological, biochemical and redox state parameters of liver tissue in Wistar rats treated from birth to adulthood (119 days) with cafeteria diet.

Design/methodology/approach

During the lactation, 6 liters of Wistar rats (dam + 8 pups each) were fed one of two diets: control (CTRL; n = 3) or cafeteria (CAF; n = 3) diets and water ad libitum. After weaning, the males were placed in individual cages, receiving the same diet offered to their respective dams (CTRL or CAF; n = 18) until adulthood. The following parameters were evaluated: absolute and relative liver weight; blood, liver and feces biochemistry; liver histology; and redox state of the liver.

Findings

When assessing the relative and absolute organ weight, no significant differences were found between the groups. The Cafeteria group exhibited higher values of serum LDL-c (p = 0.008), VLDL-c (p = 0.03) and triglycerides (p = 0.01), as well as several micro and macrovacuoles of fat accumulation, higher hepatic lipid (p = 0.03) and cholesterol (p = 0.0001) levels regarding Control group. Cafeteria group showed greater expression of glutathione-s-transferase (p = 0.03) and superoxide dismutase (p = 0.005) enzymes compared to the control group. In the case of the markers of oxidative stress, there was no difference between the groups.

Originality/value

A simple and standardized cafeteria diet caused an accumulation of fatty acids in liver tissue, inducing a state of hepatic steatosis besides an increased expression of antioxidant enzymes.

Details

Nutrition & Food Science , vol. 51 no. 3
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 26 August 2024

Arthur Rocha-Gomes, Alexandre Alves da Silva and Tania Regina Riul

The purpose of this study is to nutritionally evaluate dams exposed to caloric restriction or cafeteria diets during the lactation period.

Abstract

Purpose

The purpose of this study is to nutritionally evaluate dams exposed to caloric restriction or cafeteria diets during the lactation period.

Design/methodology/approach

Twenty-four female Wistar rats (n = 8/group) and their respective litters received during lactation: Control (CTRL) – received standard chow; Caloric restriction (CR) – received 50% of the ratio of the CTRL group; Cafeteria diet (CAF) – received cafeteria diet. Weighing of the mother rats and their respective litters occurred weekly and the diets were daily. At weaning, levels of glucose, total cholesterol, high-density lipoprotein, low-density lipoprotein (LDL) and triglycerides were evaluated. Abdominal adipose tissue was removed and weighed. Liver tissue was removed to determine the lipid profile.

Findings

CR dams showed lower food (p < 0.01), caloric (p < 0.01) and all macronutrients (p < 0.01) intake. This group also observed intense weight loss (p < 0.01), in addition to low litter weight (p < 0.01). CAF dams had higher caloric intake (p < 0.05) and increased consumption of lipids (p < 0.01). The CAF group also reported greater accumulation of abdominal adipose tissue (p = 0.01), elevated levels of LDL (p < 0.01) and hepatic lipids (p < 0.01), as well as a litter with higher weaning weight (p < 0.01).

Originality/value

Few studies have evaluated the effects of different models of malnutrition focusing on dams. CR dams showed severe weight loss, which may have caused their pups to be underweight. On the other hand, the CAF diet during lactation led to a higher consumption of lipids and accumulation of adipose tissue, which generated a high weight of the litter.

Details

Nutrition & Food Science , vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0034-6659

Keywords

Article
Publication date: 18 August 2021

Jéssica Sena Gonçalves, Arthur Rocha-Gomes, Amanda Escobar Teixeira, Alexandre Alves da Silva, Mayara Rodrigues Lessa, Nísia Andrade Villela Dessimoni-Pinto, Sergio Ricardo Stuckert Seixas and Tania Regina Riul

The purpose of this study was to evaluate the increase in sensitivity of a single risperidone administration in relation to energy intake of Wistar rats treated with cafeteria…

Abstract

Purpose

The purpose of this study was to evaluate the increase in sensitivity of a single risperidone administration in relation to energy intake of Wistar rats treated with cafeteria diet from birth to adulthood (119 days).

Design/methodology/approach

During the lactation period, six litters of Wistar rats (dam + 8 pups each litter) were fed one of the following two diets: Control (n = 3) or Cafeteria (n = 3) diets and water ad libitum. After weaning, the males were placed in individual cages, receiving the same diet offered to their respective dams (Control = 18; or Cafeteria = 18) until adulthood (119 postnatal days). The following parameters were evaluated: food and energy intake; macronutrient intake; weight gain; adipose tissue relative weight; sucrose preference; food intake after an administration of risperidone (0.1 mg/kg body weight).

Findings

The Cafeteria group showed a higher energy intake in relation to the Control group (p < 0.001). The consumption of energy beyond the individual needs can be understood as a hyperphagic condition. Also, the Cafeteria group reported greater weight gain (p = 0.048) and accumulation of adipose tissue (p < 0.001) with respect to the Control group. These results indicate that the cafeteria diet generated obesity in animals. The Cafeteria group showed reduced sucrose preference (p = 0.031), which is associated with the development of anhedonia-like behavior. In the food intake test, risperidone showed a greater sensitivity in Cafeteria animals, promoting a decrease in their energy intake in relation to the Control group that received risperidone (p = 0.040).

Originality/value

The cafeteria diet promoted hyperphagia, anhedonia-like behavior and obesity in animals. Acute risperidone administration showed greater sensitivity in the Cafeteria group, with a decrease in energy intake. The reported effects may be related to a downregulation of the dopaminergic system in the NAc region.

Details

Nutrition & Food Science , vol. 52 no. 2
Type: Research Article
ISSN: 0034-6659

Keywords

Book part
Publication date: 23 March 2017

Barbara de Lima Voss, David Bernard Carter and Bruno Meirelles Salotti

We present a critical literature review debating Brazilian research on social and environmental accounting (SEA). The aim of this study is to understand the role of politics in…

Abstract

We present a critical literature review debating Brazilian research on social and environmental accounting (SEA). The aim of this study is to understand the role of politics in the construction of hegemonies in SEA research in Brazil. In particular, we examine the role of hegemony in relation to the co-option of SEA literature and sustainability in the Brazilian context by the logic of development for economic growth in emerging economies. The methodological approach adopts a post-structural perspective that reflects Laclau and Mouffe’s discourse theory. The study employs a hermeneutical, rhetorical approach to understand and classify 352 Brazilian research articles on SEA. We employ Brown and Fraser’s (2006) categorizations of SEA literature to help in our analysis: the business case, the stakeholder–accountability approach, and the critical case. We argue that the business case is prominent in Brazilian studies. Second-stage analysis suggests that the major themes under discussion include measurement, consulting, and descriptive approach. We argue that these themes illustrate the degree of influence of the hegemonic politics relevant to emerging economics, as these themes predominantly concern economic growth and a capitalist context. This paper discusses trends and practices in the Brazilian literature on SEA and argues that the focus means that SEA avoids critical debates of the role of capitalist logics in an emerging economy concerning sustainability. We urge the Brazilian academy to understand the implications of its reifying agenda and engage, counter-hegemonically, in a social and political agenda beyond the hegemonic support of a particular set of capitalist interests.

Details

Advances in Environmental Accounting & Management: Social and Environmental Accounting in Brazil
Type: Book
ISBN: 978-1-78635-376-4

Keywords

Open Access
Article
Publication date: 5 June 2020

Manuela Gonçalves Barros, Marcelo Botelho da Costa Moraes, Alexandre Pereira Salgado Junior and Marco Antonio Alves de Souza Junior

The purpose of this paper is to evaluate the efficiency in financial intermediation and the cost efficiency in banking service of credit unions in Brazil, based on essentially…

1946

Abstract

Purpose

The purpose of this paper is to evaluate the efficiency in financial intermediation and the cost efficiency in banking service of credit unions in Brazil, based on essentially accounting variables, and to analyze the temporal evolution of the efficiency of these cooperatives.

Design/methodology/approach

With a sample of 315 cooperatives over the period from 2007 to 2014, this research uses a two-stage process: application of regression models with panel data to verify which variables are related to the defined outputs, with the reduction of 31 variables to 8 variables in both models; and application of the data envelopment analysis method to obtain an analysis of credit unions’ efficiency.

Findings

The results demonstrate a high level of efficiency in financial intermediation, with low variation over time, associated with a low efficiency in the banking service, in which few cooperatives have remained efficient over time. In addition, the cooperatives with highest efficiency in financial intermediation were also the most efficient in providing services.

Research limitations/implications

This research has some limitations about the capacity of the proxies used to capture the real effect of the variables and assumptions of economic relations resulting in restrictions to generalize the results.

Practical implications

Cooperatives are usually analyzed under just one dimension. By separating the analysis into financial intermediation and banking services, cooperatives that are more efficient in each dimension can be identified, in addition to analyzing the evolution over time. The authors found that efficiency tends to be lower in banking services, and few cooperatives remain at the highest level of efficiency over time in both models.

Social implications

Credit unions provide an important service in the banking and credit market. Therefore, understanding its operation and the characteristics that influence its efficiency allows a better management of the cooperatives themselves and a greater understanding of this important segment of the financial market.

Details

RAUSP Management Journal, vol. 55 no. 3
Type: Research Article
ISSN: 2531-0488

Keywords

Article
Publication date: 28 August 2019

Gustavo Quiroga Souki, Luiz Marcelo Antonialli, Álvaro Alexandre da Silveira Barbosa and Alessandro Silva Oliveira

À la carte restaurants have faced increasing challenges in meeting the needs and desires of new food consumers. The purpose of this paper is to propose and test a model for…

2317

Abstract

Purpose

À la carte restaurants have faced increasing challenges in meeting the needs and desires of new food consumers. The purpose of this paper is to propose and test a model for evaluating the consumers’ perceived quality of à la carte restaurants and to review the impact on their attitudes and behavioural intentions.

Design/methodology/approach

A survey was conducted with 508 university students in Brazil, and the data were analysed using structural equation modelling (SEM).

Findings

The results showed that global perceived quality (GPQ), which is a multidimensional construct with nine dimensions, directly impacted emotions, the satisfaction and perceived value by consumers. This satisfaction positively affected word-of-mouth (WOM) communication and the propensity for loyalty. Price did not have a statistically significant impact on customer satisfaction.

Originality/value

This paper, based on the structural model herein proposed and tested, is the most complete of all available articles in the literature about à la carte restaurants, as this study contemplates a greater number of perceived quality factors. In addition, both tangible and intangible perceived quality factors were included in this tested model, which goes beyond what is typically contemplated in other such. Moreover, none of the existing articles in the existing literature simultaneously observed the relationship between perceived quality, positive and negative emotions, price, perceived value, satisfaction, WOM communication and propensity to loyalty. Finally, the questionnaire developed in this study could be used both by academics in future studies and by restaurant managers.

Details

Asia Pacific Journal of Marketing and Logistics, vol. 32 no. 2
Type: Research Article
ISSN: 1355-5855

Keywords

Article
Publication date: 17 January 2023

Bruno Melo Moura, André Luiz Maranhão de Souza-Leão, Ewerton Pacheco da Silva and Guilherme Monteiro Alves dos Santos

Sports leagues, such as Major League Soccer (MLS), aim at expanding their audience at global level through alternative media other than television (TV). Brazil stands out among…

Abstract

Purpose

Sports leagues, such as Major League Soccer (MLS), aim at expanding their audience at global level through alternative media other than television (TV). Brazil stands out among football media consumer audiences as one of the main markets worldwide. Brazilian MLS consumers play the role of fans to converge between TV media and digital platforms, in a phenomenon that has been called Social TV.

Design/methodology/approach

The aim of the current research is to investigate how Brazilian MLS fans' consumption process is established through Social TV; it was done based on netnography performed between 2018 and 2020.

Findings

Results have indicated that Social TV is a catalyst of practices associated with fan culture: cultural convergence, technologies appropriations, poaching experiences and production of a collective intelligence.

Research limitations/implications

Current research reinforces how ethnography methodology has been gaining room as likely consumer market research, working as alternative method based on the prevalence of focus group and survey techniques.

Practical implications

Social TV phenomenon presents itself as a possibility to expand and direct marketing strategies focused on sports management, just as the media often consumed by fans.

Originality/value

From the results, it is possible assuming that connections between fans are punctually guided by their relationship with the cultural object consumed by them in a network relationship whose actors deindividualize sociocultural practices such as consumption. Thus, the main contribution of the study lies on identifying how fan culture can be autonomously established in the market arena in comparison to other cultures.

Details

Sport, Business and Management: An International Journal, vol. 13 no. 3
Type: Research Article
ISSN: 2042-678X

Keywords

Open Access
Article
Publication date: 8 January 2020

Alexandre Dias, Sidarta Ruthes, Leonardo Lima, Elisa Campra, Maycon Silva, Millena Bragança de Sousa and Geciane Porto

This study aims to analyze how gender, research experience and geography are related to the researchers’ importance in the co-authorship network on management and accounting in…

1404

Abstract

Purpose

This study aims to analyze how gender, research experience and geography are related to the researchers’ importance in the co-authorship network on management and accounting in Brazil.

Design/methodology/approach

A social network based on the co-authorship relationships in the papers published in leading Brazilian journals was examined using a logit model to estimate the probability of occupying prevailing positions.

Findings

The findings showed a network with a high level of fragmentation and a scarcity of authors serving as gatekeepers. Based on the number of directed links and collaboration with influential and well-connected authors, men were more likely to occupy central positions than women. Authors with higher academic degrees tended to establish more links but were more likely to distance from other authors. In terms of geography, authors from more- and less-favored regions may report similar propensity to occupy central positions.

Practical implications

Decision-makers should consider the importance of strengthening collaboration between different research groups and encourage female participation in broader collaborative networks. Research evaluation bodies should strengthen incentives regarding interinstitutional partnerships.

Originality/value

Studies on collaborative networks in management and accounting sciences are less common and generally focus on describing the networks. This paper combines social network analysis and econometric procedures to analyze the relationship between demographic and geographical aspects, and distinct network centrality indexes.

Details

RAUSP Management Journal, vol. 55 no. 2
Type: Research Article
ISSN: 2531-0488

Keywords

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