Manganese porphyrin-based treatment improves fetal-placental development and protects against oxidative damage and NLRP3 inflammasome activation in a rat maternal hypothyroidism model.

Oxidative stress (OS) and endoplasmic reticulum stress (ERS) are at the genesis of placental disorders observed in preeclampsia, intrauterine growth restriction, and maternal hypothyroidism. In this regard, cationic manganese porphyrins (MnPs) comprise potent redox-active therapeutics of high antioxidant and anti-inflammatory potential, which have not been evaluated in metabolic gestational diseases yet. This study evaluated the therapeutic potential of two MnPs, [MnTE-2-PyP] (MnP I) and [MnT(5-Br-3-E-Py)P]5+ (MnP II), in the fetal-placental dysfunction of hypothyroid rats.

Revealing the Odonatofauna of Northeastern Brazil: new Heteragrion Selys, 1862 (Odonata: Heteragrionidae) species from Bahia state.

Heteragrion roquei sp. nov. (Brazil, Bahia state, Municipality of Una, Fazenda Araruna, (-15.

Natural Areas of Cerrado Foster Wasp (Hymenoptera) Diversity in Human Modified Landscapes.

Land use changes from native vegetation to agriculture, livestock grazing, and urban development are among the main problems related to biodiversity loss worldwide. In this paper we evaluate how land use changes (eucalypt plantation and pasture) affect the richness and assemblage of wasps (Braconidae, Ichneumonidae, Pompilidae, and Vespidae), in comparison with nearby areas with native vegetation in the Cerrado. Specimens were collected at six points, with two Malaise traps at each location.

Description of the larva of Leptagrion dispar Selys, 1876 (Odonata: Coenagrionidae) with notes on distribution and ecology of the specie.

The genus Leptagrion Selys, 1876 comprises 17 described species. Of these species, only eight have their immature stage described. In this work, we describe the last instar larva of Leptagrion dispar Selys, 1876.

Phylogenetic clustering among aggressive competitors: evidence from odonate assemblages along a riverine gradient.

Studies on phylogenetic community ecology usually infer habitat filtering when communities are phylogenetically clustered or competitive exclusion when communities are overdispersed. This logic is based on strong competition and niche similarity among closely related species-a less common phenomenon than previously expected. Dragonflies and damselflies are good models for testing predictions based on this logic because they behave aggressively towards related species due to mistaken identification of conspecifics.