Sweet taste of saccharin induces weight gain without increasing caloric intake, not related to insulin-resistance in Wistar rats.

Appetite

Programa de Pós-Graduação em Medicina, Ciências Médicas, Universidade Federal do Rio Grande do Sul, Ramiro Barcelos 2400, CEP 90035-003, Bairro Rio Branco, Porto Alegre, RS, Brazil; Serviço de Medicina Interna, Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos 2350, CEP 90035-903, Sal

Published: January 2016


Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

In a previous study, we showed that saccharin can induce weight gain when compared with sucrose in Wistar rats despite similar total caloric intake. We now question whether it could be due to the sweet taste of saccharin per se. We also aimed to address if this weight gain is associated with insulin-resistance and to increases in gut peptides such as leptin and PYY in the fasting state. In a 14 week experiment, 16 male Wistar rats received either saccharin-sweetened yogurt or non-sweetened yogurt daily in addition to chow and water ad lib. We measured daily food intake and weight gain weekly. At the end of the experiment, we evaluated fasting leptin, glucose, insulin, PYY and determined insulin resistance through HOMA-IR. Cumulative weight gain and food intake were evaluated through linear mixed models. Results showed that saccharin induced greater weight gain when compared with non-sweetened control (p = 0.027) despite a similar total caloric intake. There were no differences in HOMA-IR, fasting leptin or PYY levels between groups. We conclude that saccharin sweet taste can induce mild weight gain in Wistar rats without increasing total caloric intake. This weight gain was not related with insulin-resistance nor changes in fasting leptin or PYY in Wistar rats.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.appet.2015.11.003DOI Listing

Publication Analysis

Top Keywords

weight gain
32
wistar rats
20
caloric intake
16
sweet taste
12
total caloric
12
leptin pyy
12
fasting leptin
12
taste saccharin
8
weight
8
gain
8

Similar Publications

Effects of metformin on gut microbiota and short/mediumchain fatty acids in highfat diet rats.

Zhong Nan Da Xue Xue Bao Yi Xue Ban

May 2025

Department of Laboratory Animal Science, Xiangya School of Medicine, Central South University, Changsha 410013, China.

Objectives: Recent evidence suggests that the gut may be a primary site of metformin action. However, studies on the effects of metformin on gut microbiota remain limited, and its impact on gut microbial metabolites such as short-/medium-chain fatty acids is unclear. This study aims to investigate the effects of metformin on gut microbiota, short-/medium-chain fatty acids, and associated metabolic benefits in high-fat diet rats.

View Article and Find Full Text PDF

Aim: Our aim was to ascertain whether metformin can reduce insulin requirement without compromising glycaemic control during pregnancy in women with type 1 diabetes.

Methods: A total of 126 pregnant women with type 1 diabetes were recruited for a randomised, double-blind, placebo-controlled multicentre study. The primary outcome was total insulin change, defined as the difference between baseline and third trimester maximum insulin dose (IU).

View Article and Find Full Text PDF

Functional analysis of Sf-NPF1 in food intake and antifeedant induction by azadirachtin in Spodoptera frugiperda larvae.

Pestic Biochem Physiol

November 2025

State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou 510642, China. Electronic address:

Azadirachtin, a highly effective botanical pesticide, demonstrated notable biological activities against Spodoptera frugiperda, including mortality induction, growth and development inhibition, and antifeedant effects. Neuropeptide F (NPF) has been shown to play a role in various physiological processes in insects. Nonetheless, the functions of Sf-NPF1 in regulating food intake and antifeedant induction by azadirachtin in S.

View Article and Find Full Text PDF

Regulation of food intake by Connexin43 via adipocyte-sensory neuron electrical synapses.

Mol Metab

September 2025

Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX, 77030, USA. Electronic address:

Background And Objective: Connexin43 (Cx43), encoded by Gja1, forms gap junctions between adjacent cells. In adipose tissue, it is upregulated during adipose beiging while downregulated by high-fat-diet (HFD) feeding. Adipocyte-specific Gja1 overexpression enhances adipose tissue beiging in response to mild cold stress of room temperature.

View Article and Find Full Text PDF

Eucalyptus globulus essential oil alleviates cold-induced ascites and physiological disturbances in broiler chickens.

Poult Sci

August 2025

Central Queensland Innovation and Research Precinct (CQIRP), Institute for Future Farming Systems, Central Queensland University, Rockhampton, QLD 4701, Australia; Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.

This study evaluated the efficacy of Eucalyptus globulus essential oil (EEO) supplementation in attenuating ascites incidence and physiological disturbances in broiler chickens exposed to a cold-induced pulmonary hypertension syndrome model. A total of 720 one-day-old male Ross 308 chicks were randomly assigned to six dietary treatments, each with six replicates of 20 birds. The thermoneutral control group received a basal diet under standard conditions (32°C on day 1, gradually reduced to 23°C by day 20 and maintained until day 42; relative humidity [RH] 50-60 %), whereas the remaining five groups were exposed to cold stress (temperature reduced by 4°C/day from day 11 until reaching 15°C, then maintained at 10-15°C until day 42, RH 55-65 %) to induce ascites, and were fed the basal diet supplemented with 0, 500, 1000, 1500, or 2000 mg/kg EEO.

View Article and Find Full Text PDF