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1 – 10 of 11

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: 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

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: 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

Content available
Book part
Publication date: 23 August 2022

Abstract

Details

Global Meaning Making
Type: Book
ISBN: 978-1-80117-933-1

Book part
Publication date: 8 February 2016

Susan Frelich Appleton and Susan Ekberg Stiritz

This paper explores four works of contemporary fiction to illuminate formal and informal regulation of sex. The paper’s co-authors frame analysis with the story of their creation…

Abstract

This paper explores four works of contemporary fiction to illuminate formal and informal regulation of sex. The paper’s co-authors frame analysis with the story of their creation of a transdisciplinary course, entitled “Regulating Sex: Historical and Cultural Encounters,” in which students mined literature for social critique, became immersed in the study of law and its limits, and developed increased sensitivity to power, its uses, and abuses. The paper demonstrates the value theoretically and pedagogically of third-wave feminisms, wild zones, and contact zones as analytic constructs and contends that including sex and sexualities in conversations transforms personal experience, education, society, and culture, including law.

Details

Special Issue: Feminist Legal Theory
Type: Book
ISBN: 978-1-78560-782-0

Keywords

Content available
Book part
Publication date: 11 May 2007

Abstract

Details

Education for All
Type: Book
ISBN: 978-0-7623-1441-6

Article
Publication date: 17 May 2022

Amanda J. Brockman, Dara E. Naphan-Kingery and Richard N. Pitt

While science, technology, engineering and math (STEM) postdoctoral scholars often enter their positions with strong science identities, racially marginalized scholars are often…

Abstract

Purpose

While science, technology, engineering and math (STEM) postdoctoral scholars often enter their positions with strong science identities, racially marginalized scholars are often not treated as scientists, which can weaken their science identities. This study aims to examine how racial discrimination negatively affects their science identities in STEM and the importance of community recognition in mitigating these effects.

Design/methodology/approach

The authors use reflected appraisals and identity theory to theoretically guide this work. The data are based on a survey of 215 postdoctoral scholars in STEM disciplines.

Findings

The authors find that community recognition mediates the negative relationship between perceived discrimination and postdoctoral scholars’ science identities.

Research limitations/implications

The study shows the importance of recognizing the achievements and identities of underrepresented STEM scholars to counteract the chronic and cumulative identity nonverification that leaves talent unrecognized and disrupts scholars’ science identities.

Originality/value

The authors explore the negative impact of discriminatory experiences on the importance individuals place on their identities as scientists and if this can be affected by the degree to which they feel that other scientists recognize them as competent scientists among a group of scholars who have earned the highest of academic degrees, and who are also relatively understudied: postdocs.

Details

Studies in Graduate and Postdoctoral Education, vol. 13 no. 2
Type: Research Article
ISSN: 2398-4686

Keywords

Article
Publication date: 26 June 2020

Sheila Namagembe

The study examined the influence of environmental standards set by the SME agro-based processing firms and farmers' environmental empowerment on farmers' adoption of…

Abstract

Purpose

The study examined the influence of environmental standards set by the SME agro-based processing firms and farmers' environmental empowerment on farmers' adoption of environmentally friendly agricultural practices; and the mediating role of empowerment on the relationship between SME agro-based processing firm environmental standards and farmers' adoption of environmentally friendly agricultural practices.

Design/methodology/approach

Data was collected from purchasing managers of the agro-based processing firms. The SPSS software, SMART PLS and CB-SEM software were used to obtain results on the influence of environmental standards set by the SME agro-based processing firms on adoption of environmentally friendly agricultural practices; the influence of farmers' environmental empowerment on adoption of environmentally friendly agricultural practices and the mediating role of farmers' environmental empowerment on the relationship between SME agro-based processing firm environmental standards and farmers' adoption of environmentally friendly agricultural practices.

Findings

Findings indicated that SME agro-processing environmental standards have an influence on farmers' adoption of environmentally friendly agricultural practices. Empowering farmers in environmental issues influenced their adoption of environmentally friendly agricultural practices. A partial mediation effect was observed on testing the mediating role of farmers' environmental empowerment on the relationship between SME agro-based processing firm environmental standards and farmers' adoption of environmentally friendly practices.

Research limitations/implications

The study mainly focused on the upstream part of agricultural supply chains. The research has implications to decision-makers in government concerned with enhancing environmentally friendly practices among farmers in general.

Originality/value

The influence of SME agro-based processing firm environmental standards on farmers' adoption of environmentally friendly agricultural practices; the influence of farmers' environmental empowerment on farmers' adoption of environmentally friendly practices; and the mediating role of farmers' environmental empowerment on the relationship between SME agro-based processing firm environmental standards and farmers' adoption of environmentally friendly agricultural practices are aspects that have not been given significant attention.

Details

International Journal of Quality & Reliability Management, vol. 38 no. 2
Type: Research Article
ISSN: 0265-671X

Keywords

Article
Publication date: 16 October 2023

Annisa Abubakar Lahjie, Riccardo Natoli and Segu Zuhair

This study aims to examine the influence of corporate governance (CG) and corporate social responsibility (CSR) on firm value while accounting for the impact of information…

Abstract

Purpose

This study aims to examine the influence of corporate governance (CG) and corporate social responsibility (CSR) on firm value while accounting for the impact of information asymmetry.

Design/methodology/approach

This empirical analysis is based on 1,079 observations from 83 listed Indonesian firms for the period 2007–2019. The authors applied simultaneous equation models with ordinary least squares and two-stage least squares.

Findings

The authors present empirical evidence of CG mechanisms that significantly contribute to low levels of CSR. Moreover, the authors identify a significant impact of information asymmetry on the relationship between CG, CSR and firm value.

Research limitations/implications

The results show that information asymmetry, CG and CSR do not necessarily result in improved firm value across boards. Moreover, the employment of a nonlinear Cobb–Douglas-type function indicated diminishing marginal returns.

Practical implications

The findings can help policymakers in developing countries in improving the monitoring and supervisory roles of CG mechanisms to provide more support to CSR, increasing regulatory pressures for improved CSR performance and reducing information asymmetry by adopting a standardized CSR reporting scheme.

Social implications

The suggested implications can contribute to more sustainable practices among Indonesian-listed firms as well as improving relationships with consumers and stakeholders toward the practice of CSR.

Originality/value

The adoption of a comprehensive CSR measurement tool to examine the value of CSR contributes to the extant literature, along with examining the impact of information asymmetry on the relationship between CG, CSR and firm value in a developing country context.

Details

International Journal of Accounting & Information Management, vol. 31 no. 5
Type: Research Article
ISSN: 1834-7649

Keywords

1 – 10 of 11