Search Results
Search for other papers by Hiroharu Mifune in
Google Scholar
PubMed
Search for other papers by Yuji Tajiri in
Google Scholar
PubMed
Search for other papers by Yusuke Sakai in
Google Scholar
PubMed
Search for other papers by Yukie Kawahara in
Google Scholar
PubMed
Search for other papers by Kento Hara in
Google Scholar
PubMed
Search for other papers by Takahiro Sato in
Google Scholar
PubMed
Search for other papers by Yoshihiro Nishi in
Google Scholar
PubMed
Search for other papers by Akinori Nishi in
Google Scholar
PubMed
Search for other papers by Ryouichi Mitsuzono in
Google Scholar
PubMed
Search for other papers by Tatsuyuki Kakuma in
Google Scholar
PubMed
Search for other papers by Masayasu Kojima in
Google Scholar
PubMed
producing the motivation to perform and adhere to exercise, especially in obese subjects. Ghrelin, which was originally identified as a growth hormone secretagogue (GHS), is an orexigenic gut hormone. This 28-amino acid peptide is produced by the X
Search for other papers by Arnaud Jean in
Google Scholar
PubMed
Search for other papers by Anne-Charlotte Trouillet in
Google Scholar
PubMed
Search for other papers by Njiva Andry Andrianarivelo in
Google Scholar
PubMed
Search for other papers by Sakina Mhaouty-Kodja in
Google Scholar
PubMed
Search for other papers by Hélène Hardin-Pouzet in
Google Scholar
PubMed
Introduction Sexual behaviour in male rodents can be described as a series of behavioural elements cumulating in ejaculation. These involve approaches and olfactory investigations of the female during the motivational phase of sexual behaviour
Djavad Mowafaghian Centre for Brain Health, The University of British Columbia, Vancouver, British Columbia, Canada
Search for other papers by Daniel J Tobiansky in
Google Scholar
PubMed
Search for other papers by George V Kachkovski in
Google Scholar
PubMed
Search for other papers by Reilly T Enos in
Google Scholar
PubMed
Search for other papers by Kim L Schmidt in
Google Scholar
PubMed
Search for other papers by E Angela Murphy in
Google Scholar
PubMed
Djavad Mowafaghian Centre for Brain Health, The University of British Columbia, Vancouver, British Columbia, Canada
Search for other papers by Stan B Floresco in
Google Scholar
PubMed
Djavad Mowafaghian Centre for Brain Health, The University of British Columbia, Vancouver, British Columbia, Canada
Department of Zoology, The University of British Columbia, Vancouver, British Columbia, Canada
Search for other papers by Kiran K Soma in
Google Scholar
PubMed
). Briefly, this task consists of a geometric progression of lever presses required to receive one sugar pellet and is considered a measure of motivation to access sugar (initial sequence = 1, 2, 4, 6, 9…; maximum lever presses = 2012). Rats were given 20 min
University of Groningen, University Medical Center, Groningen, The Netherlands
Search for other papers by Marian Joëls in
Google Scholar
PubMed
Search for other papers by E Ronald de Kloet in
Google Scholar
PubMed
(BNST), which is a hub in the network from where efferents run to orexin neurons implicated in arousal. BNST neurons innervate the limbic brain and the nucleus accumbens underlying motivation and reward behaviours likely with the goal to still salt
Agrarian Sector, Federal University of Paraná, Veterinary Hospital, Curitiba, Brazil
Search for other papers by Gilvanildo Roberto da Silva in
Google Scholar
PubMed
Search for other papers by Mariane Gomes Carneiro in
Google Scholar
PubMed
Search for other papers by Miriam Pereira Barbosa in
Google Scholar
PubMed
Search for other papers by Jaciane de Almeida Costa in
Google Scholar
PubMed
Search for other papers by Ivone Antonia de Souza in
Google Scholar
PubMed
Search for other papers by Lisiane dos Santos Oliveira in
Google Scholar
PubMed
Search for other papers by Diogo Antonio Alves de Vasconcelos in
Google Scholar
PubMed
Search for other papers by Elizabeth do Nascimento in
Google Scholar
PubMed
Search for other papers by Rhowena Jane Barbosa Matos in
Google Scholar
PubMed
Search for other papers by Sandra Lopes de Souza in
Google Scholar
PubMed
Department of Anatomy, Federal University of Pernambuco, Recife, Brazil
Search for other papers by Manuela Figueiroa Lyra de Freitas in
Google Scholar
PubMed
Obesogenic diets are known to induce obesity and changes in food intake in experimental animals. Obesity negatively affects the peripheral metabolism and neural aspects, such as changes in eating behavior. In obese animals, dopamine (DA) receptor levels are reduced. DA is one of the main peptides involved in the motivation and pleasure of eating. A combination of naltrexone/bupropion (NB) has shown promise in controlling metabolic alterations, but there are few studies on how they modulate dopaminergic expression. NB, in addition to reducing food intake and body weight, can modify tyrosine hydroxylase (Th) and DA receptor D2 (Drd2 ) levels in the mesolimbic areas of rats submitted to a high-fat diet (HF). The study evaluated the effect of NB on food intake, body weight, and expression levels of Th, Drd1a, and Drd2 , in the nucleus accumbens and striatum of rats fed on HF diet. Wistar rats were grouped according to diet: standard (n = 20) and HF diet (n = 20). The food intake and body weight were analyzed. The gene expression of Th, Drd1a, and Drd2 was evaluated using real-time PCR. NB combination of 1 mg/kg and 20 mg/kg reduced food intake and body weight, increased Drd2 expression in rats on HF diet, and increased Th in rats on both experimental diets. The level of Drd1a was unchanged. We concluded that bodyweight reduction may be associated with decreased food intake in response to the increased Drd2 expression in the mesolimbic areas of rats that received an HF diet.
Biomedical Sciences, University of Missouri, Columbia, Missouri, USA
Search for other papers by Brittney L Marshall in
Google Scholar
PubMed
Informatics Institute, University of Missouri, Columbia, Missouri, USA
Search for other papers by Yang Liu in
Google Scholar
PubMed
Biomedical Sciences, University of Missouri, Columbia, Missouri, USA
Search for other papers by Michelle J Farrington in
Google Scholar
PubMed
Biomedical Sciences, University of Missouri, Columbia, Missouri, USA
Search for other papers by Jiude Mao in
Google Scholar
PubMed
Search for other papers by William G Helferich in
Google Scholar
PubMed
Search for other papers by A Katrin Schenk in
Google Scholar
PubMed
Search for other papers by Nathan J Bivens in
Google Scholar
PubMed
MU Metabolomics Center, University of Missouri, Columbia, Missouri, USA
Search for other papers by Saurav J Sarma in
Google Scholar
PubMed
MU Metabolomics Center, University of Missouri, Columbia, Missouri, USA
Department of Biochemistry, University of Missouri, Columbia, Missouri, USA
Search for other papers by Zhentian Lei in
Google Scholar
PubMed
MU Metabolomics Center, University of Missouri, Columbia, Missouri, USA
Department of Biochemistry, University of Missouri, Columbia, Missouri, USA
Search for other papers by Lloyd W Sumner in
Google Scholar
PubMed
Informatics Institute, University of Missouri, Columbia, Missouri, USA
Department of Health Management and Informatics, School of Medicine, University of Missouri, Columbia, Missouri, USA
Search for other papers by Trupti Joshi in
Google Scholar
PubMed
Biomedical Sciences, University of Missouri, Columbia, Missouri, USA
Informatics Institute, University of Missouri, Columbia, Missouri, USA
Thompson Center for Autism and Neurobehavioral Disorders, University of Missouri, Columbia, Missouri, USA
Genetics Area Program, University of Missouri, Columbia, Missouri, USA
Search for other papers by Cheryl S Rosenfeld in
Google Scholar
PubMed
Human offspring encounter high amounts of phytoestrogens, such as genistein (GEN), through maternal diet and soy-based formulas. Such chemicals can exert estrogenic activity and thereby disrupt neurobehavioral programming. Besides inducing direct host effects, GEN might cause gut dysbiosis and alter gut metabolites. To determine whether exposure to GEN affects these parameters, California mice (Peromyscus californicus) dams were placed 2 weeks prior to breeding and throughout gestation and lactation on a diet supplemented with GEN (250 mg/kg feed weight) or AIN93G phytoestrogen-free control diet (AIN). At weaning, offspring socio-communicative behaviors, gut microbiota and metabolite profiles were assayed. Exposure of offspring to GEN-induced sex-dependent changes in gut microbiota and metabolites. GEN exposed females were less likely to investigate a novel female mouse when tested in a three-chamber social test. When isolated, GEN males and females exhibited increased latency to elicit their first call, suggestive of reduced motivation to communicate with other individuals. Correlation analyses revealed interactions between GEN-induced microbiome, metabolome and socio-communicative behaviors. Comparison of GEN males with AIN males revealed the fraction of calls above 20 kHz was associated with daidzein, α-tocopherol, Flexispira spp. and Odoribacter spp. Results suggest early GEN exposure disrupts normal socio-communicative behaviors in California mice, which are otherwise evident in these social rodents. Such effects may be due to GEN disruptions on neural programming but might also be attributed to GEN-induced microbiota shifts and resultant changes in gut metabolites. Findings indicate cause for concern that perinatal exposure to GEN may detrimentally affect the offspring microbiome–gut–brain axis.
Search for other papers by Donald Pfaff in
Google Scholar
PubMed
steps involved in producing a mammalian behaviour. Emboldened by success in this endeavour, we have begun to deepen the level of enquiry by reasoning from sex behaviours themselves, to their underlying motivational states, and in turn to the fundamental
Search for other papers by Catherine Gibbons in
Google Scholar
PubMed
Search for other papers by Graham Finlayson in
Google Scholar
PubMed
Search for other papers by Michelle Dalton in
Google Scholar
PubMed
Search for other papers by Phillipa Caudwell in
Google Scholar
PubMed
Search for other papers by John E Blundell in
Google Scholar
PubMed
physiological signals of energy requirements are integrated with the motivation to eat via sensations of hunger and fullness. This review was commissioned to strictly address the behavioural aspects of appetite control, which provide the foundation for obtaining
Search for other papers by Candice Marion in
Google Scholar
PubMed
Search for other papers by Philippe Zizzari in
Google Scholar
PubMed
Search for other papers by Raphael G P Denis in
Google Scholar
PubMed
Search for other papers by Rim Hassouna in
Google Scholar
PubMed
Search for other papers by Yacine Chebani in
Google Scholar
PubMed
Search for other papers by Thierry Leste-Lasserre in
Google Scholar
PubMed
Search for other papers by Hélène Doat in
Google Scholar
PubMed
Search for other papers by Gwenaëlle Le Pen in
Google Scholar
PubMed
Search for other papers by Daniela Cota in
Google Scholar
PubMed
Search for other papers by Florence Noble in
Google Scholar
PubMed
Search for other papers by Serge Luquet in
Google Scholar
PubMed
Search for other papers by Jacques Pantel in
Google Scholar
PubMed
-way repeated measure ANOVA followed by Sidak’s post hoc tests. * P < 0.05; ** P < 0.01; *** P < 0.001; ~non-significant trend ( P < 0.1). Data represent mean ± s.e.m . Ghsr M/M rats show unaltered spontaneous conditioning and motivation
Center for Ingestive Behavior Research, University at Buffalo, Buffalo, New York, USA
Search for other papers by Katherine N Balantekin in
Google Scholar
PubMed
Search for other papers by Martin J Kretz in
Google Scholar
PubMed
Center for Ingestive Behavior Research, University at Buffalo, Buffalo, New York, USA
Search for other papers by Elizabeth G Mietlicki-Baase in
Google Scholar
PubMed
reward system nuclei, including the ventral tegmental area and nucleus accumbens, reduces motivation to work for palatable food in rodent models ( Dickson et al. 2012 , Alhadeff et al. 2017 , Colvin et al. 2020 ), providing basic science evidence
