Checklist of decapod crustaceans from the coast of the São Paulo state (Brazil) supported by integrative molecular and morphological data: IV. Infraorder Anomura: Superfamilies Chirostyloidea, Galatheoidea, Hippoidea and Paguroidea.

This checklist is the fourth contribution resulting from a long-term multidisciplinary project which combined morphological analyses and molecular techniques (mitochondrial DNA markers) for accurate identification of marine and coastal decapod crustaceans of São Paulo State (Brazil). We provide a list of 63 species of the following 11 families of 4 superfamilies of Anomura: Albuneidae (4 spp.), Blepharipodidae (1 sp.), Chirostylidae (1 sp.), Diogenidae (18 spp.), Hippidae (1 sp.), Munididae (8 spp.), Munidopsidae (1 sp.), Paguridae (13 spp.), Parapaguridae (2 spp.), Porcellanidae (13 spp.), and Pylochelidae (1 sp.). Seven species previously reported from the region were neither collected nor found in museum collections during our study, including one (Sympagurus dimorphus) that we suggest to be removed from São Paulo coast fauna lists. We generated new sequences of cytochrome oxidase subunit I (barcode region) and 16S genes of 44 species. This anomuran inventory may serve as guideline for future studies on taxonomy, conservation, population genetics, biogeography, and phylogenetics, which might flag species that deserve further investigations and concerns.

Comparative spermatozoal ultrastructure and molecular analysis in dromiid crabs and their phylogenetic implications for Dromiidae and Podotremata (Decapoda: Brachyura).

We described the spermatozoal ultrastructure and conducted a molecular analysis of Dromiidae Hypoconcha parasitica, Hypoconcha arcuata, Moreiradromia antillensis and Dromia erythropus. To elucidate the relationship between the different species of this brachyuran group, we also compared the spermatozoal morphologies and phylogenetic positioning among species of Dromiidae, Dromioidea and Podotremata. Specimens were collected from the northern coast of São Paulo, Brazil and were fixed and processed followed by transmission electron microscopy and molecular analysis routines. The Dromiidae spermatozoa studied are characterized by a discoidal acrosome, with three or four concentric zones, which are centrally separated by a bilaterally capitate perforatorial chamber, with a "mushroom"-shaped apex in the Hypoconchinae and a "T-shape" in Dromiinae. Above the perforatorial chamber, there is an apical protuberance, continuous with the subopercular region and the operculum, which forms a low, centrally perforated dome. Under differential interference contrast microscopy, the spermatozoa show 3 to 4 radial arms. The spermatozoal characters in Hypoconchinae and Dromiinae do not separate these subfamilies from the Dromiidae and Dromioidea. Ultrastructural differentiation was only found between representative Dromioidea and other Podotremata. Thus, the spermiotaxonomy of these Hypoconcha, Moreiradromia and Dromia species corroborated previous morphological and molecular studies, supporting the monophyly of Dromiidae and Dynomenidae in relation to Homolidae and Latreilliidae.

Acretismo placentário: revisão de literatura / Placenta accreta: a review

Placenta acreta é uma condição obstétrica que requer abordagem multidisciplinar. A incidência do acretismo placentário tem aumentado paralelamente ao aumento da incidência de parto cesárea. Mulheres com risco elevado dessa condição são aquelas que apresentam dano miometrial causado por um parto cesáreo prévio ou outra intervenção cirúrgica. O diagnóstico precoce permite planejamento e reduz a morbimortalidade materna e neonatal, entretanto, ocasionalmente ele é realizado no momento do parto. A ultrassonografia é sensível e específica o suficiente para esse diagnóstico, porém a ressonância magnética tem o seu valor em casos dúbios. Existem algumas formas de abordagem como a histerectomia periparto, todavia, o tratamento conservador tem sido cada vez mais realizado em mulheres jovens que desejam manter a opção de ter uma futura gestação. Muitos pontos em ambos os tipos de conduta são discutíveis, como a idade gestacional para realização do parto, tentativa de remoção da placenta, uso da radiologia intervencionista e do methotrexate. Independentemente da escolha, a mulher e seu parceiro devem ser bem orientados quanto ao risco de complicações relacionadas à invasão placentária anormal(AU)