|
|
|
Registros recuperados: 11 | |
|
|
Vignet, Caroline; Devier, Marie-hélène; Le Menach, Karyn; Lyphout, Laura; Potier, Jeremy; Cachot, Jerome; Budzinski, Helene; Begout, Marie-laure; Cousin, Xavier. |
A natural sediment spiked with three individual polycyclic aromatic hydrocarbons (PAHs; pyrene, phenanthrene and benzo[a]pyrene) was used to expose zebrafish embryos and larvae during 4 days. The total PAH concentration was 4.4 μg g−1 which is in the range found in sediment from contaminated areas. Quantification of metabolites in the larvae after exposure confirmed the actual contamination of the larvae and indicated an active metabolism especially for pyrene and benzo[a]pyrene. After a transfer in a clean medium, the larvae were reared to adulthood and evaluated for survival, growth, reproduction, and behavior. Measured endpoints revealed a late disruption of growth (appearing at 5 months) and a trend toward a lower reproductive ability. Adults of... |
Tipo: Text |
Palavras-chave: Danio rerio; Polycyclic aromatic hydrocarbon; Lifecycle; Anxiety-like behavior; Offspring. |
Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00188/29909/28497.pdf |
| |
|
|
Vignet, Caroline; Joassard, Lucette; Lyphout, Laura; Guionnet, Tiphaine; Goubeau, Manon; Le Menach, Karyn; Brion, Francois; Kah, Olivier; Chung, Bon-chu; Budzinski, Helene; Begout, Marie-laure; Cousin, Xavier. |
The release of polycyclic aromatic hydrocarbons (PAHs) into the environment has increased very substantially over the last decades. PAHs are hydrophobic molecules which can accumulate in high concentrations in sediments acting then as major secondary sources. Fish contamination can occur through contact or residence nearby sediments or though dietary exposure. In this study, we analyzed certain physiological traits in unexposed fish (F1) issued from parents (F0) exposed through diet to three PAH mixtures at similar and environmentally relevant concentrations but differing in their compositions. For each mixture, no morphological differences were observed between concentrations. An increase in locomotor activity was observed in larvae issued from fish... |
Tipo: Text |
Palavras-chave: Danio rerio; Polycyclic aromatic hydrocarbon; Offspring; Transgenerational effect; Heavy oil; Light crude oil; Locomotor activity; Photomotor response; Anxiety-like behavior. |
Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00259/37030/35688.pdf |
| |
|
| |
|
| |
|
|
Moharerri,Alireza; Ghafari,Soraya; Golalipour,Mohammad Jafar. |
Previous study has shown the adverse effects of gestational diabetes on hippocampal and spinal cord neuronal density in animal model. This study was conducted to determine the effect of gestational diabetes on beta cells in rat pancreas in early postnatal life. In this experimental study, 10 dams randomly allocated into control and diabetic groups on day 1 of gestation. Five dams in diabetic group received 40 mg/kg/BW of streptozotocin (intraperitoneally) and control animals received normal saline. Six of 28 and 56-day-old offspring of each gestational diabetes mellitus and controls were randomly scarified and sections were taken from the pancreas and stained using Gomorra's method. The density of beta cells and number and area of pancreatic islets were... |
Tipo: Journal article |
Palavras-chave: Gestational diabetes; Beta cell; Pancreas; Offspring; Rat. |
Ano: 2016 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000400034 |
| |
|
|
CORVINO,SILVANA B.; DAMASCENO,DÉBORA C.; SINZATO,YURI K.; NETTO,ALINE O.; MACEDO,NATHÁLIA C.D.; ZAMBRANO,ELENA; VOLPATO,GUSTAVO T.. |
ABSTRACT The aim of this study was to compare two models of swimming applied to pregnant rats born small for pregnancy age (SPA). Diabetes was chemically induced in adult female rats to develop an inadequate intrauterine environment, leading to birth of a SPA offspring. In adulthood, the female SPA rats were mated and submitted to different swimming programs. The exercise program 1 (Ex1) consisted of swimming for 15 minutes, followed by 15 minutes of rest and another 15 minutes of swimming, 3 days a week before and during pregnancy. Another program (Ex2) was applied during 60 minutes uninterrupted a day, 6 days/week during pregnancy. The pregnant rats presented no interference on body weight and glycemia. The rats submitted to Ex2 model showed decreased... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rats; Diabetes; Pregnancy; Offspring; Exercise.. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000100223 |
| |
|
|
SANTOS,CAROLYNE D.S.; BALBO,SANDRA L.; GUIMARÃES,ANA T.B.; SAGAE,SARA C.; NEGRETTI,FÁBIO; GRASSIOLLI,SABRINA. |
ABSTRACT Here, we evaluated whether the exposure of rats to a cafeteria diet pre- and/or post-weaning, alters histological characteristics in the White Adipose Tissue (WAT), Brown Adipose Tissue (BAT), and liver of adult male offspring. Female Wistar rats were divided into Control (CTL; fed on standard rodent chow) and Cafeteria (CAF; fed with the cafeteria diet throughout life, including pregnancy and lactation). After birth, only male offspring (F1) were maintained and received the CTL or CAF diets; originating four experimental groups: CTL-CTLF1; CTL-CAFF1; CAF-CTLF1; CAF-CAFF1. Data of biometrics, metabolic parameters, liver, BAT and WAT histology were assessed and integrated using the Principal Component Analysis (PCA). According to PCA analysis worse... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Obesity; Dams; Offspring; Histology. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000602887 |
| |
|
|
Xavier,João Lucas P.; Scomparin,Dionizia X.; Pontes,Catherine C.; Ribeiro,Paulo Roberto; Cordeiro,Maiara M.; Marcondes,Jessica A.; Mendonça,Felipe O.; Silva,Makcine T. da; Oliveira,Fabio B. de; Franco,Gilson C.N.; Grassiolli,Sabrina. |
In the present study we analyzed morphological and metabolic alterations in dams nursing small litters and their consequences to offspring throughout lactation. Offspring sizes were adjusted to Small Litter (SL, 3 pups/ dam) and Normal Litter (NL, 9 pups/ dam). Body weight, food intake, white adipose tissue (WAT) content, histological analysis of the pancreas, mammary gland (MG) and brown adipose tissue (BAT) as well as, plasma parameters and milk composition were measured in dams and pups on the 7th, 14th and 21st days of lactation. In general, SL-dams presented higher body weight and retroperitoneal fat content, elevated fat infiltration in BAT, reduced islets size and hyperglycemia throughout lactation in relation to NL-dams (p<0.05). Moreover, MG... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dams; Metabolic programming; Milk; Offspring. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000100803 |
| |
|
| |
|
|
Campos,K.E.; Volpato,G.T.; Calderon,I.M.P.; Rudge,M.V.C.; Damasceno,D.C.. |
The aim of the present study was to assess the reproductive parameters of obese Wistar rats and to determine the frequency of their obese adult offspring. Neonatal rats were divided into two groups: F1 generation, induced to obesity by monosodium glutamate (MSG; F1MSG, N = 30), and rats given saline (F1CON, N = 13). At 90 days of age all animals were mated, producing the F2 offspring (F2CON, N = 28; F2MSG, N = 15). Reproductive parameters (fertility, pregnancy, and delivery indexes) were evaluated in F1 rats. F2 newborns were weighed, and the obesity parameter for F1 and F2 generations was determined from months 5 to 7 of life. At month 7, periovarian fat was weighed and no differences were found. Mean newborn weight also did not differ. The F1 and F2MSG... |
Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Obesity; Offspring; Fertility; Wistar rats; Monosodium glutamate; Transgeneration. |
Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008000200008 |
| |
|
|
Da Costa,N. Meireles; Visoni,S.B.C.; Dos Santos,I.L.; Barja-Fidalgo,T.C.; Ribeiro-Pinto,L.F.. |
Early nutrition plays a long-term role in the predisposition to chronic diseases and influences the metabolism of several drugs. This may happen through cytochromes P450 (CYPs) regulation, which are the main enzymes responsible for the metabolism of xenobiotics. Here, we analyzed the effects of maternal protein restriction (MPR) on the expression and activity of hepatic offspring’s CYPs during 90 days after birth, using Wistar rats as a mammal model. Hepatic CYP1A1, CYP1A2, CYP2B1, CYP2B2 and CYP2E1 mRNA and protein expression, and associated catalytic activities (ECOD, EROD, MROD, BROD, PROD and PNPH) were evaluated in 15-, 30-, 60-, and 90-day-old offspring from dams fed with either a 0% protein (MPR groups) or a standard diet (C groups) during the 10... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Maternal protein restriction; Offspring; CYP; Perinatal nutrition; Metabolic programming. |
Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016001100603 |
| |
Registros recuperados: 11 | |
|
|
|