Background: Hyperthermic intraperitoneal chemotherapy (HIPEC) at interval cytoreductive surgery for ovarian cancer improves overall survival but its role in recurrent disease is uncertain. We aimed to compare outcomes in patients treated with or without HIPEC during surgery for recurrent ovarian cancer.
Methods: The multicentre, open-label, randomised, phase 3 CHIPOR trial was conducted at 31 sites in France, Belgium, Spain, and Canada, and enrolled patients with first relapse of epithelial ovarian cancer at least 6 months after completing platinum-based chemotherapy.
Polypoid endometriosis is a rare manifestation of endometriosis, which may mimic pelvic cancer. This subtype commonly encountered in post-menopausal women may be wrongly mistaken for a neoplasm on clinical, radiological, perioperative or pathologic assessments leading to inadequate treatment.
View Article and Find Full Text PDFTemperature strongly drives physiological and ecological processes in ectotherms. While many species rely on behavioural thermoregulation to avoid thermal extremes, others build structures (nests) that confer a shelter against climate variability and extremes. However, the microclimate inside nests remains unknown for most insects.
View Article and Find Full Text PDFThe association between indirect environmental cues that modulate insect diapause and the actual stressors is by no means granted when a species encounters new environments. The box tree moth, , is an Asian pest whose rapid invasion in Europe causes considerable economic and ecological impacts. Larvae enter a winter diapause induced by the photoperiod in both native and invaded ranges, but factors that trigger the return to an active phase are still unknown.
View Article and Find Full Text PDFThe dataset supplied in this article provides the spatial location and the species composition of urban trees belonging to three coniferous genera (, and ) inventoried in 5 districts of the city of Orléans (France). A total of 9321 trees were georeferenced. The most abundant species was the black pine for which a total of 2420 trees were observed.
View Article and Find Full Text PDFBackground: Various species of forest trees are commonly used for ornamental purposes and are therefore frequently found in non-forest ecosystems. These trees constitute a significant component of the trees outside forests (TOF). Although increasingly recognized as prominent feature of agricultural lands and built-up areas, not much is known, however, about TOF since they are generally absent from forest inventories.
View Article and Find Full Text PDFMapping species spatial distribution using spatial inference and prediction requires a lot of data. Occurrence data are generally not easily available from the literature and are very time-consuming to collect in the field. For that reason, we designed a survey to explore to which extent large-scale databases such as Google maps and Google Street View could be used to derive valid occurrence data.
View Article and Find Full Text PDFA number of organisms, especially insects, are extending their range in response of the increasing trend of warmer temperatures. However, the effects of more frequent climatic anomalies on these species are not clearly known. The pine processionary moth, Thaumetopoea pityocampa, is a forest pest that is currently extending its geographical distribution in Europe in response to climate warming.
View Article and Find Full Text PDFJ Gynecol Obstet Biol Reprod (Paris)
June 2012
Pheochromocytomas are rare but potentially lethal tumors responsible for malignant hypertension. They may be encountered by gynecologists and obstetricians. The diagnosis is difficult because it can be mistaken for diseases more frequent like preeclampsia or other pelvic tumors.
View Article and Find Full Text PDFMol Ecol Resour
January 2012
This article documents the addition of 299 microsatellite marker loci and nine pairs of single-nucleotide polymorphism (SNP) EPIC primers to the Molecular Ecology Resources (MER) Database. Loci were developed for the following species: Alosa pseudoharengus, Alosa aestivalis, Aphis spiraecola, Argopecten purpuratus, Coreoleuciscus splendidus, Garra gotyla, Hippodamia convergens, Linnaea borealis, Menippe mercenaria, Menippe adina, Parus major, Pinus densiflora, Portunus trituberculatus, Procontarinia mangiferae, Rhynchophorus ferrugineus, Schizothorax richardsonii, Scophthalmus rhombus, Tetraponera aethiops, Thaumetopoea pityocampa, Tuta absoluta and Ugni molinae. These loci were cross-tested on the following species: Barilius bendelisis, Chiromantes haematocheir, Eriocheir sinensis, Eucalyptus camaldulensis, Eucalyptus cladocalix, Eucalyptus globulus, Garra litaninsis vishwanath, Garra para lissorhynchus, Guindilla trinervis, Hemigrapsus sanguineus, Luma chequen.
View Article and Find Full Text PDFIn this article, we propose a method for analyzing the spatial variations in the range expansion of the pine processionary moth (PPM), an invasive species in France. Based on binary measurements - the presence or absence of PPM nests - the proposed method allows us to infer the local effect of the environment on PPM population expansion. This effect is estimated at each position x using a parameter F(x) that corresponds to the local PPM fitness.
View Article and Find Full Text PDFA plausible case of allochronic differentiation, where barrier to gene flow is primarily attributable to a phenological shift, was recently discovered in Portugal for the pine processionary moth Thaumetopoea pityocampa. Previous results suggested that the observed 'summer population' (SP) originated from the sympatric winter population (WP). Our objectives were to finely analyse these patterns and test their stability in time, through field monitoring and genetic analyses of larvae and adults across different years.
View Article and Find Full Text PDFBackground: Quaternary climatic oscillations had dramatic effects on species evolution. In northern latitudes, populations had to survive the coldest periods in refugial areas and recurrently colonized northern regions during interglacials. Such a history usually results in a loss of genetic diversity.
View Article and Find Full Text PDFPhylogeographic structure of the eastern pine processionary moth Thaumetopoea wilkinsoni was explored in this study by means of nested clade phylogeographic analyses of COI and COII sequences of mitochondrial DNA and Bayesian estimates of divergence times. Intraspecific relationships were inferred and hypotheses tested to understand historical spread patterns and spatial distribution of genetic variation. Analyses revealed that all T.
View Article and Find Full Text PDFAllochronic speciation refers to a mode of sympatric speciation in which the differentiation of populations is primarily due to a phenological shift without habitat or host change. However, it has been so far rarely documented. The present paper reports on a plausible case of allochronic differentiation between sympatric populations of the pine processionary moth (PPM), Thaumetopoea pityocampa.
View Article and Find Full Text PDFA parallel study of the genetic structure of two oligophagous species associated with the same hosts was conducted to determine the main factors shaping the distribution of genetic diversity. The bark beetle Tomicus piniperda and the pine processionary moth (PPM) Thaumetopoea pityocampa are both associated with the genus Pinus and belong to different guilds (xylophagous vs defoliating species). The PPM is an ectophagous species that feeds on the needles of living trees, whereas T.
View Article and Find Full Text PDFPolydnaviruses, obligatorily associated with endoparasitoid wasps, are unique in that their segmented genome is composed of multiple double-stranded DNA circles. We present here the first cytological evidence that virus segments are integrated in the wasp genome, obtained by using in situ hybridization of virus probes with viral sequences in the chromosomes of a wasp from the braconid family of hymenopterans.
View Article and Find Full Text PDFThe haploid complement consists of seven metacentric chromosomes in most diprionid species but has evolved to n = 8 by fission in Neodiprion abietis. This fission generated a small telocentric chromosome and a large pseudoacrocentric chromosome with a short arm carrying a satellite. In situ hybridization indicated that the location of the rRNA gene cluster corresponds to the whole short arm.
View Article and Find Full Text PDFEarlier cytological investigations characterize the family Diprionidae with a modal chromosome number of seven. This study shows that Diprion pini and D. similis have 14 acrocentric chromosomes (n = 14 for haploid males and 2n = 28 for diploid females).
View Article and Find Full Text PDFAim Of The Study: The aim of this study was to evaluate the therapeutic modalities, particularly surgical treatment, for adrenal metastasis of hepatocellular carcinomas.
Patients And Methods: This series included 13 patients (mean age: 64 years) with hepatocellular carcinoma on cirrhotic liver (n = 8) or healthy liver (n = 5). The adrenal metastasis was synchronous in four cases, metachronous in nine, unilateral in ten cases, and bilateral in three.
Structures possessing spatial asymmetry should act as pumps in the presence of dissipation alone, without the need for macroscopic forces or temperature differences to drive vectorial motion. It has been shown theoretically that particles subjected to an asymmetric periodic potential can display net directional motion even if the space-averaged force is zero. Here we demonstrate such behaviour experimentally.
View Article and Find Full Text PDFAnn Gastroenterol Hepatol (Paris)
May 1986
The aim of this study was to investigate the effects of ranitidine on the pentagastrin stimulated gastric secretion (6 micrograms.kg.h) in 30 patients with duodenal ulcer.
View Article and Find Full Text PDF