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| Silva, Vanessa Carla Lima da; Silva, Francine Maria de França; Meunier, Isabelle Maria Jacqueline; Silva, Tânia Maria Sarmento da; Silva Júnior, Valdemiro Amaro da; Maia, Frederico Celso Lyra. |
| Teratogenicity and developmental abnormalities in the offspring of female rats that ingested ethanol extract of Neem plants during pregnancy and lactation period were assessed. Twenty-four female Wistar rats were randomly distributed in control group and in three experimental groups and treated during the 4th, 5th, and 6th day of pregnancy. After birth, the lactating females received, by gavage, 65, 135 and 200 mg kg-1 of Neem ethanol extract, during 15 days. Results show, there was no significant difference in body mass index of neonatal rats in the 4 groups evaluated, whereas mean rate of offspring survival was 79.4%. Hair growth, incisor teeth eruption, ear detachment, eyelid opening, and spontaneous ambulation were similar for all groups. Likewise,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Morfologia e toxicologia medicinal plant; Reproduction; Teratogenicity; Physical development; Rodents Morfologia animal e Toxicologia. |
| Ano: 2015 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/24976 |
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| Tavares Vieira, Kátia Cristina de Melo; Couto, Jennifer Cardoso; Zanetti, Edson; Sanches Junior, José Marcos; Favareto, Ana Paula Alves. |
| Metolachlor is a selective pre-emergent herbicide widely used in agriculture to control weeds. The aim of this study was to evaluate the possible effects of metolachlor on reproductive performance of adult rats, as well as its teratogenic potential when administered during the period of organogenesis. Pregnant adult female rats were allocated into 4 experimental groups (n = 10 group-1), that received 0 (control); 150 (TA); 300 (TB); or 1000 mg kg-1 bw day-1 (TC) of metolachlor, by gavage, from the 6th to 15th gestational day (GD). There is reduction in the weight gain of the animals from TB and TC groups compared to the control group. Liver and placenta weights were reduced in TB and TC groups, respectively, while the percentage of post-implantation loss... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pesticide reproduction teratogenicity fetus pesticide; Reproduction; Teratogenicity; Fetus. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/29079 |
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| Peres,R.M.; Sanseverino,M.T.V.; Guimarães,J.L.M.; Coser,V.; Giuliani,L.; Moreira,R.K.; Ornsten,T.; Schüler-Faccini,L.. |
| The objective of the present study was to evaluate and quantify fetal risks involved in the administration of cancer chemotherapy during gestation, as well as to assess the long-term effects on the exposed children. In this retrospective, cohort study, we reviewed the records of women aged 15 to 45 years with a diagnosis of malignancy or benign tumors with malignant behavior at three reference services in the State of Rio Grande do Sul, Brazil, from 1990 to 1997. All patients with a diagnosis of pregnancy at any time during the course of the disease were selected, regardless of whether or not they received specific medication. Fetal outcomes of 14 pregnancies with chemotherapy exposure were compared to that of 15 control pregnancies in which these drugs... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cancer; Pregnancy; Chemotherapy; Teratogenicity; Fetal outcome. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001001200007 |
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| Perrichon, Prescilla; Le Bihanic, Florane; Bustamante, Paco; Le Menach, Karyn; Budzinski, Helene; Cachot, Jerome; Cousin, Xavier. |
| Due to hydrophobic and persistent properties, polycyclic aromatic hydrocarbons (PAHs) have a high capacity to accumulate in sediment. Sediment quality criteria, for the assessment of habitat quality and risk for aquatic life, include understanding the fate and effects of PAHs. In the context of European regulation (REACH and Water Framework Directive), the first objective was to assess the influence of sediment composition on the toxicity of two model PAHs, benzo[a]pyrene and fluoranthene using 10-day zebrafish embryo-larval assay. This procedure was undertaken with an artificial sediment in order to limit natural sediment variability. A suitable sediment composition might be then validated for zebrafish and proposed in a new OECD guideline for chemicals... |
| Tipo: Text |
Palavras-chave: Fish embryo-larval assay; PAHs; Artificial sediment; EROD; Behavioral performance; Teratogenicity. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00242/35323/37905.pdf |
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| Le Bihanic, Florane; Sommard, Vivien; De Lansalut, Perrine; Pichon, Anaïk; Grasset, Julie; Berrada, Saadia; Budzinski, Helene; Cousin, Xavier; Morin, Benedicte; Cachot, Jerome. |
| Benz[a]anthracene (BaA) is a ubiquitous polycyclic aromatic hydrocarbon found in numerous aquatic ecosystems. However, ecotoxicological data in aquatic organisms are scarce. To remedy this lack of data, Japanese medaka (Oryzias latipes) embryos were exposed to BaA and toxic effects were investigated at multiple toxicological endpoints. Japanese medaka embryos were incubated onto BaA-spiked artificial sediment for 9 days at low or moderate environmental concentrations ranging from 0.9 to 12 µg g−1 dw. BaA-exposed embryos exhibited significant tachycardia. BaA exposure was also shown to increase CYP1A activity in the hepato-biliary tissue as well as craniofacial deformities and DNA damage in pro-larvae. The photomotor response of BaA-exposed larvae was... |
| Tipo: Text |
Palavras-chave: Benz[a]anthracene; Spiked sediment; Teratogenicity; DNA damage; Swimming behavior; In vivo EROD activity. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00244/35513/34729.pdf |
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| Perrichon, Prescilla; Le Menach, Karyn; Akcha, Farida; Cachot, Jerome; Budzinski, Helene; Bustamante, Paco. |
| Petroleum compounds from chronic discharges and oil spills represent an important source of environmental pollution. To better understand the deleterious effects of these compounds, the toxicity of water-accommodated fractions (WAF) from two different oils (brut Arabian Light and Erika heavy fuel oils) were used in this study. Zebrafish embryos (Danio rerio) were exposed during 96 h at three WAF concentrations (1, 10 and 100% for Arabian Light and 10, 50 and 100% for Erika) in order to cover a wide range of polycyclic aromatic hydrocarbon (PAH) concentrations, representative of the levels found after environmental oil spills. Several endpoints were recorded at different levels of biological organization, including lethal endpoints, morphological... |
| Tipo: Text |
Palavras-chave: Zebrafish embryos; Oil exposure; Teratogenicity; Swimming performance; Bradycardia; Detoxification pathway. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00342/45324/46430.pdf |
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| Le Bihanic, Florane; Perrichon, Prescilla; Landi, Laure; Clerandeau, Christelle; Le Menach, Karyn; Budzinski, Helene; Cousin, Xavier; Cachot, Jerome. |
| Most persistent organic pollutants, due to their hydrophobic properties, accumulate in aquatic sediments and represent a high risk for sediment quality. To assess the toxicity of hydrophobic pollutants, a novel approach was recently proposed as an alternative to replace, refine and reduce animal experimentation: the medaka embryo–larval sediment contact assay (MELAc). This assay is performed with Japanese medaka embryos incubated on a natural sediment spiked with the compound being tested. With the aim of improving this assay, our study developed a reference exposure protocol with an artificial sediment specifically designed to limit natural sediment composition uncertainties and preparation variability. The optimum composition of the new artificial... |
| Tipo: Text |
Palavras-chave: Artificial sediment; Spiked sediment; PAHs; Japanese medaka embryos; Embryotoxicity; Teratogenicity. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00187/29872/28479.pdf |
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