Context: Jacaranda decurrens subsp. symmetrifoliolata Farias & Proença (Bignoniaceae) is a species widely used for their medicinal properties. At least to our known, no study has been conducted concerning its toxicological profile after gestational and lactational exposure.
Objective: The present study was carried out to evaluate the effects of J. decurrens on development of the reproductive system in male rats.
Materials And Methods: Pregnant rats were treated daily (gavage) with 250 or 500 mg/kg/day of aqueous extract of J. decurrens or vehicle, from day 12 of pregnancy to day 21 of lactation.
Results And Discussion: Both doses of J. decurrens significantly anticipated (p < 0.05) the age of testicular descent to the scrotum, a parameter indicative of puberty initiation. Furthermore, at puberty, there was a significant reduction (p < 0.05) in testicular and epididymis weights in the offspring exposed to the higher dose of extract, without effect on sperm production and the histology of reproductive organs. On the other hand, at adulthood, the reproductive parameters analyzed did not differ among groups.
Conclusions: J. decurrens, in this experimental model, interfered with the initial development of the reproductive system, but without lasting effects on sperm production in adulthood.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.3109/13880209.2011.592538 | DOI Listing |
Environ Monit Assess
January 2025
Syngenta Ltd, Jealott's Hill International Research Centre, Warfield, Bracknell, RG42 6EY, UK.
Brazilian soils have distinctive characteristics to European and North American soils which are typically used to investigate pesticide fate. This study aimed to compare soil-water partition coefficient (K), reversibility of adsorption and degradation half-life (DT) of 5 pesticides covering a wide range of physico-chemical properties in contrasting Brazilian soils (Argissolo, Gleissolo, Latossolo and Neossolo) and a temperate (UK) alfisol soil, and to study their relationship with soil OM, clay and expandable clay content, CEC and pH. In addition, we used a novel laboratory test to evaluate sorption reversibility, the 3-Phase Assay (3PA).
View Article and Find Full Text PDFAchieving the smallest crystallite/particle size of zinc oxide nanoparticles (ZnO NPs) reported to date, measuring 5.2/12.41 nm with () leaf extract, this study introduces a facile green synthesis.
View Article and Find Full Text PDFExp Gerontol
January 2025
School of Food and Bioengineering, Xihua University, Chengdu 610039, China.
Purpose: The study aims to investigate the therapeutic effects of the aqueous extract of Atractylodes macrocephala Koidz. (AEA) on dexamethasone (Dex) -induced sarcopenia in mice and to explore its possible mechanisms of action.
Methods: This study utilized bioinformatics analysis to explore the primary pathogenic mechanisms of age-related sarcopenia and Dex-induced muscle atrophy.
Int J Biol Macromol
January 2025
State Key Laboratory of Organic-Inorganic Composites, College of Life Science and Technology, Beijing University of Chemical Technology, No. 15 East Road of North Third Ring Road, Chao Yang District, Beijing 100029, China. Electronic address:
A comprehensive study was conducted to determine the effects of water and ethylene glycol (EG) on biomass pretreatment using a binary deep eutectic solvent (DES) containing choline chloride and acetic acid (1ChCl3AC) at a mole ratio of 1:3. Different quantities of water and EG were combined with 1ChCl3AC to pretreat wheat straw, miscanthus, eucalyptus, and sorghum stalk at 130 °C for 6 h. The changes in nanopore structure and surface roughness of wet biomass, as well as biomass crystallinity after 1ChCl3AC-based pretreatment were investigated using XRD and small-angle neutron scattering (SANS).
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Instituto de Pesquisa Pelé Pequeno Príncipe, 80240-020 Curitiba, PR, Brazil; Faculdades Pequeno Príncipe, 80230-020 Curitiba, PR, Brazil. Electronic address:
The mushroom Pleurotus ostreatus is widely produced in Brazil and its stipes are discarded before commercialization. In the present study, this agricultural fungal waste (mushroom stipes), was analyzed by preparing an aqueous extract and obtaining the polysaccharides by ethanol precipitation (POS-extract). The fraction presented 37 % of carbohydrates and small amounts of proteins and phenolic compounds.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!