Publications by authors named "Escourrou G"

Article Synopsis
  • * The exposure rates for gentamicin and amikacin were 31.7% and 9.1%, respectively, with a significant majority of treatments starting within the first week of life, and changes in average daily doses noted over the years.
  • * The study found low rates of overdose and underdose for both antibiotics, with factors such as year of admission and prematurity influencing gentamicin overdose rates, suggesting the effectiveness of a
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Objectives: The primary objective of this study is to determine the current level of patient medication exposure in Level 3 Neonatal Wards (L3NW). The secondary objective is to evaluate in the first month of life the rate of medication prescription not cited in the Summary of Product Characteristics (SmPC). A database containing all the medication prescriptions is collected as part of a prescription benchmarking program in the L3NW.

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Background: Assessing hemodynamic status in preterm newborns is an essential task, as many studies have shown increased morbidity when hemodynamic parameters are abnormal. Although oscillometric monitoring of arterial blood pressure (BP) is widely used due to its simplicity and lack of side effects, these values are not always correlated with microcirculation and oxygen delivery.

Objectives: This review focuses on different tools for the assessment of hemodynamic status in preterm newborns.

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In breast cancer, a key feature of peritumoral adipocytes is their loss of lipid content observed both in vitro and in human tumors. The free fatty acids (FFAs), released by adipocytes after lipolysis induced by tumor secretions, are transferred and stored in tumor cells as triglycerides in lipid droplets. In tumor cell lines, we demonstrate that FFAs can be released over time from lipid droplets through an adipose triglyceride lipase-dependent (ATGL-dependent) lipolytic pathway.

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Dysregulated expression of translation initiation factors has been associated with carcinogenesis, but underlying mechanisms remains to be fully understood. Here we show that eIF4H (eukaryotic translation initiation factor 4H), an activator of the RNA helicase eIF4A, is overexpressed in lung carcinomas and predictive of response to chemotherapy. In lung cancer cells, depletion of eIF4H enhances sensitization to chemotherapy, decreases cell migration and inhibits tumor growth in vivo, in association with reduced translation of mRNA encoding cell-proliferation (c-Myc, cyclin D1) angiogenic (FGF-2) and anti-apoptotic factors (CIAP-1, BCL-xL).

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Pathologists commonly face breast lesions that are difficult to diagnose. To reduce second opinion delay, erase geographical barrier and provide continuing education, we aimed to develop a telepathology-based regional network of pathologists. With the support of ONCOMIP network, we founded a peer-group named SENOPATH, composed of experienced breast pathologists practising in private laboratories, university hospitals or comprehensive cancer center in the region of Midi-Pyrénées in France.

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Cancer-associated fibroblasts (CAF) comprise the majority of stromal cells in breast cancers, yet their precise origins and relative functional contributions to malignant progression remain uncertain. Local invasion leads to the proximity of cancer cells and adipocytes, which respond by phenotypical changes to generate fibroblast-like cells termed as adipocyte-derived fibroblasts (ADF) here. These cells exhibit enhanced secretion of fibronectin and collagen I, increased migratory/invasive abilities, and increased expression of the CAF marker FSP-1 but not α-SMA.

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Context: McCune-Albright syndrome (MAS) is characterized by polyostotic fibrous dysplasia, café-au-lait skin pigmentations, and gonadotropin-independent sexual precocious puberty, resulting from a somatic postzygotic activating mutation of the GNAS1 gene.

Setting: We report a virilizing sclerosing-stromal tumor of the ovary in a young female with MAS.

Patient: She presented polyostotic fibrous dysplasia of the left upper and lower limbs and a café-au-lait skin spot in the posterior area of the neck.

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Among the many different cell types surrounding breast cancer cells, the most abundant are those that compose mammary adipose tissue, mainly mature adipocytes and progenitors. New accumulating recent evidences bring the tumor-surrounding adipose tissue into the light as a key component of breast cancer progression. The purpose of this review is to emphasize the role that adipose tissue might play by locally affecting breast cancer cell behavior and subsequent clinical consequences arising from this dialog.

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Introduction: Nitric oxide synthases (NOSs) and estrogen receptors are expressed in the female urethra.

Aim: We aimed to assess the impact of sildenafil on micturition behavior, urethral tone according to the hormonal status and to determine the implications of the neuronal isoform of NOS (nNOS).

Methods: Four-week-old C57/BL6 female mice were sham-operated or ovariectomized.

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Vulvar Paget's disease is sub-classified into three types based upon its origin. It might be a primary vulvar disease (type 1) or associated with a non-cutaneous adenocarcinoma-rectal, colonic, cervical (type 2) or linked with an urothelial neoplasia (type 3). Type 1lesions must be considered as potentially invasive.

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Early local tumor invasion in breast cancer results in a likely encounter between cancer cells and mature adipocytes, but the role of these fat cells in tumor progression remains unclear. We show that murine and human tumor cells cocultivated with mature adipocytes exhibit increased invasive capacities in vitro and in vivo, using an original two-dimensional coculture system. Likewise, adipocytes cultivated with cancer cells also exhibit an altered phenotype in terms of delipidation and decreased adipocyte markers associated with the occurrence of an activated state characterized by overexpression of proteases, including matrix metalloproteinase-11, and proinflammatory cytokines [interleukin (IL)-6, IL-1β].

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Solitary fibrous tumors of the genital tract female are extremely rare. We reported a case of solitary fibrous tumor originating in the vulva of a 37-year-old woman. The histological analysis revealed a conjunctiva tumourous proliferation, with variable cellularity, the morphology feature and the immunohistochemistry profile of which entailed us to infer on a solitary fibrous tumor.

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Unlabelled: PRÉCIS: Positive endocervical margins are an important predictor of recurrence in high-grade cervical lesions, and though they do not always warrant retreatment, closer surveillance is recommended.

Objective: To identify predictors of recurrence and persistence of high-grade cervical dysplasia and to determine appropriate follow-up.

Design: prospective pilot study.

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The CT and MR imaging features of the main cardiac tumors will be reviewed. Cross-sectional imaging features may help differentiate between cardiac tumors and pseudotumoral lesions and identify malignant features. Based on clinical features, imaging findings are helpful to further characterize the nature of the lesion.

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Ovarian Sertoli-Leydig cell tumours (SLCT), also termed arrhenoblastomas, are the most frequent virilising tumours in women of reproductive age. Very rare secretory Brenner tumours (BT) have been described, generally after the menopause. A 31-year-old woman sought medical advice for secondary amenorrhoea, progressive hirsutism and a 5-year history of virilisation syndrome with clitoromegaly.

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In addition to diabetes and cardiovascular diseases, epidemiological evidence demonstrates that people who are obese or overweight are at increased risk of developing cancer - colon, breast (in postmenopausal women), endometrial or kidney cancer being among the most frequent. In addition to the increase in tumor occurrence, obesity also affects tumor prognosis, especially in breast and prostate cancers. In breast cancer, obesity is associated with reduced survival and increased recurrence independent of menopausal status.

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The potential role of serotonin (5-HT) in cardiac function has generated much interest in recent years. In particular, the need for a tight regulation of 5-HT to maintain normal cardiovascular activity has been demonstrated in different experimental models. However, it remains unclear how increased levels of 5-HT could contribute to the development of cardiac hypertrophy.

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We report the histological evaluation of both endocardial and epicardial radiofrequency (RF) ablation lesions in the explanted heart of a patient presenting with nonischemic dilated cardiomyopathy complicated by recurrent electrical storms. In this case, chronic RF lesions were almost transmural at the endocardial side, while remaining only superficial at the epicardial aspect, possibly because of the insulating interposed epicardial fat layer.

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