Read by QxMD icon Read


Lani S Chun, Rakesh H Vekariya, R Benjamin Free, Yun Li, Da-Ting Lin, Ping Su, Fang Liu, Yoon Namkung, Stephane A Laporte, Amy E Moritz, Jeffrey Aubé, Kevin J Frankowski, David R Sibley
The dopamine D2 receptor (D2R) is known to elicit effects through activating two major signaling pathways mediated by either G proteins (Gi/o) or β-arrestins. However, the specific role of each pathway in physiological or therapeutic activities is not known with certainty. One approach to the dissection of these pathways is through the use of drugs that can selectively modulate one pathway vs. the other through a mechanism known as functional selectivity or biased signaling. Our laboratory has previously described a G protein signaling-biased agonist, MLS1547, for the D2R using a variety of in vitro functional assays...
2018: Frontiers in Synaptic Neuroscience
Manwika Charaschanya, Jeffrey Aubé
Ring expansion provides a powerful way of introducing a heteroatom substituent into a carbocyclic framework. However, such reactions are often limited by the tendency of a given substrate to afford only one of the two rearrangement products or fail to achieve high selectivity at all. These limitations are particularly acute when seeking to carry out late-stage functionalization of natural products as starting points in drug discovery. In this work, we present a stereoelectronically controlled ring expansion sequence towards selective and flexible access to complementary ring systems derived from common steroidal substrates...
March 5, 2018: Nature Communications
(no author information available yet)
OBJECTIVES: Abnormal uterine bleeding (AUB) is caused by derangement of physiological processes of tissue growth, shedding and regeneration. It is known that interplay between metalloproteinases (MMP's) and tissue inhibitors of metalloproteinases (TIMP's) may play a crucial role in its occurrence. AIM: To define if expression of proMMP-2, MMP-2 and TIMP-1 in endometrium of women with AUB is dependent on steroid sex hormone concentration and histopathological picture...
February 5, 2018: Neuro Endocrinology Letters
Naïk Vietti Violi, Rafael Duran, Boris Guiu, Jean-Pierre Cercueil, Christophe Aubé, Antonia Digklia, Isabelle Pache, Pierre Deltenre, Jean-François Knebel, Alban Denys
BACKGROUND: Radiofrequency ablation is the recommended treatment for patients with hepatocellular carcinoma who have lesions smaller than 3 cm and are therefore not candidates for surgery. Microwave ablation is a more recent technique with certain theoretical advantages that have not yet been confirmed clinically. We aimed to compare the efficacy of both techniques in the treatment of hepatocellular carcinoma lesions of 4 cm or smaller. METHODS: We did a randomised controlled, single-blinded phase 2 trial at four tertiary university centres in France and Switzerland...
March 1, 2018: Lancet. Gastroenterology & Hepatology
V Cartier, A Crouan, M Esvan, F Oberti, S Michalak, B Gallix, O Seror, A Paisant, V Vilgrain, C Aubé
PURPOSE: To assess the usefulness of a second biopsy when the first one was inconclusive in patients with a liver nodule found during the follow-up for chronic liver disease. MATERIALS AND METHODS: Among 381 patients (544 nodules) included in a prospective study designed to evaluate the accuracy of imaging for the diagnosis of small hepatocellular carcinoma (HCC) in chronic liver disease, 254 nodules were biopsied. The following histological results were considered as conclusive: HCC, dysplastic or regenerative nodule, and other identified tumors (benign or malignant)...
February 28, 2018: Diagnostic and Interventional Imaging
Marie-Claude Letellier, Caroline S Duchaine, Karine Aubé, Denis Talbot, Marie-Michèle Mantha-Bélisle, Hélène Sultan-Taïeb, France St-Hilaire, Caroline Biron, Michel Vézina, Chantal Brisson
Adverse psychosocial work factors are recognized as a significant source of psychological distress, resulting in a considerable socioeconomic burden. The impact of occupational health standards that aim to reduce these adverse work factors, such as the Quebec Healthy Enterprise Standard (QHES), is of great interest for public health. The aim of this study was to evaluate, for the first time, the effect of QHES interventions targeting adverse psychosocial work factors on the prevalence of these factors and of psychological distress among ten Quebec organizations...
February 28, 2018: International Journal of Environmental Research and Public Health
Julie G Thorne, Elizabeth H Russell, Danielle Rumbolt, Mary Anne Jamieson
BACKGROUND: Abdominal pain, secondary amenorrhea and abnormal uterine bleeding (AUB) are common gynecologic presentations in adolescence. Rarely this can be associated with an acquired hematometra. Hematometra is a condition of retained blood or clot within the uterus. High dose progestogenic agents in this age group have been implicated in the accumulation of a hematometra without other explanation. CASES: We present 4 cases of hematometra following depomedroxyprogesterone acetate (DMPA) therapy in previously menstruating adolescents...
February 14, 2018: Journal of Pediatric and Adolescent Gynecology
En-Hui Li, Xin Zhao, Ce Zhang, Wei Liu
Fragile X syndrome is one of the most common forms of inherited intellectual disability. It is caused by mutations of the Fragile X mental retardation 1(FMR1) gene, resulting in either the loss or abnormal expression of the Fragile X mental retardation protein (FMRP). Recent research showed that FMRP participates in non-coding RNA pathways and plays various important roles in physiology, thereby extending our knowledge of the pathogenesis of the Fragile X syndrome. Initial studies showed that the Drosophila FMRP participates in siRNA and miRNA pathways by interacting with Dicer, Ago1 and Ago2, involved in neural activity and the fate determination of the germline stem cells...
February 20, 2018: Yi Chuan, Hereditas
Kelin Li, Charles K Vorkas, Ashutosh Chaudhry, Donielle L Bell, Richard A Willis, Alexander Rudensky, John D Altman, Michael S Glickman, Jeffrey Aubé
Mucosal-associated invariant T (MAIT) cells are an abundant class of innate T cells restricted by the MHC I-related molecule MR1. MAIT cells can recognize bacterially-derived metabolic intermediates from the riboflavin pathway presented by MR1 and are postulated to play a role in innate antibacterial immunity through production of cytokines and direct bacterial killing. MR1 tetramers, typically stabilized by the adduct of 5-amino-6-D-ribitylaminouracil (5-A-RU) and methylglyoxal (MeG), are important tools for the study of MAIT cells...
2018: PloS One
Parul Sinha, Nidhi Yadav, Uma Gupta
Purpose of the Study: To assess the efficacy of hysteroscopy in diagnosis of AUB. Method: A total of 56 women in reproductive and peri-menopausal age group (20-50 years) with complaints of abnormal uterine bleeding were enrolled in the study. All the patients underwent hysteroscopic examination followed by biopsy/histopathological evaluation. Hysteroscopic findings were compared against histopathological findings. Sensitivity, specificity, PPV, NPV and accuracy of hysteroscopy were calculated...
February 2018: Journal of Obstetrics and Gynaecology of India
Sarah Maheux-Lacroix, Jennifer Mennen, Amy Arnold, Aaron Budden, Erin Nesbitt-Hawes, HaRyun Won, Jason Abbott
BACKGROUND: Intrauterine hysteroscopic morcellators have been studied as an alternative method for removing submucosal leiomyomas. AIMS: To assess the long-term efficacy of hysteroscopic morcellation of submucosal leiomyomas in women with abnormal uterine bleeding (AUB). MATERIALS AND METHODS: We conducted a prospective cohort study including all women with AUB who underwent a hysteroscopic resection with mechanical morcellation of a benign submucosal leiomyoma confirmed at histopathology...
January 22, 2018: Australian & New Zealand Journal of Obstetrics & Gynaecology
Rachel Steward, Patricia Carney, Amy Law, Lin Xie, Yuexi Wang, Huseyin Yuce
OBJECTIVES: Compare the long-term outcomes, including hysterectomy, chronic pelvic pain (CPP), and abnormal uterine bleeding (AUB) in women post-hysteroscopic sterilization (HS) and laparoscopic tubal ligation (TL) in the Medicaid population. STUDY DESIGN: Retrospective observational cohort analysis using data from the US Medicaid Analytic Extracts (MAX) Encounters database. Women aged 18 to 49years with at least one claim for HS (n=3929) or TL (n=10,875) between July 1, 2009, through December 31, 2010 were included...
December 27, 2017: Contraception
Marianne Ziol, Nicolas Poté, Giuliana Amaddeo, Alexis Laurent, Jean-Charles Nault, Frédéric Oberti, Charlotte Costentin, Sophie Michalak, Mohamed Bouattour, Claire Francoz, Georges Philippe Pageaux, Jeanne Ramos, Thomas Decaens, Alain Luciani, Boris Guiu, Valérie Vilgrain, Christophe Aubé, Jonathan Derman, Cécile Charpy, Jessica Zucman-Rossi, Nathalie Barget, Olivier Seror, Nathalie Ganne-Carrié, Valérie Paradis, Julien Calderaro
We recently identified a novel histological subtype of hepatocellular carcinoma, designated as "macrotrabecular-massive" (MTM-HCC) and associated with specific molecular features. In order to assess the clinical relevance of this novel variant, we aimed to investigate its prognostic value in two large series of patients with HCC treated either by surgical resection or radiofrequency ablation (RFA). We retrospectively included 237 HCC surgical samples and 284 HCC liver biopsies from patients treated by surgical resection and RFA, respectively...
December 27, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
David Blom-Dahl, Natalia Azpiazu
The eyegone (eyg) gene encodes Eyg, a transcription factor of the Pax family with multiple roles during Drosophila development. Eyg has been shown to be nuclear in the cells where it functions. In this report we describe a new functional cytoplasmic distribution of Eyg during egg chamber development in the female ovarioles. The protein is present from the germarium until stage 10 of cyst development. The majority of egg chambers that develop in the absence of Eyg arrest their development before stage 10, show augmented levels of the telomeric retro-transposon TART-A and low levels of heterochromatin marks in the oocyte nucleus...
December 23, 2017: Developmental Biology
Maxime Ronot, Olivia Fouque, Maxime Esvan, Jérome Lebigot, Christophe Aubé, Valérie Vilgrain
BACKGROUND AND AIMS: To prospectively compare the diagnostic accuracy of the AASLD and LI-RADS v2014 criteria for the non-invasive diagnosis of small HCC, and to evaluate the diagnostic value of ancillary features used in the LI-RADS criteria. Between April 2009 and April 2012, patients with cirrhosis and one to three 10-30mm nodules were enrolled and underwent CT and MR imaging. The diagnostic accuracy of both the AASLD and the LI-RADS criteria were determined based on their sensitivity, specificity, positive (PPV) and negative predictive values (NPV)...
December 20, 2017: Journal of Hepatology
Federica Vernuccio, Maxime Ronot, Marco Dioguardi Burgio, Jérôme Lebigot, Wassim Allaham, Christophe Aubé, Giuseppe Brancatelli, Valérie Vilgrain
Frequently encountered on abdominal imaging studies, the majority of common benign liver lesions are asymptomatic, confidently diagnosed by imaging, and do not require further workup, follow-up, or treatment. The increasing use of multimodality liver imaging, has allowed the recognition of uncommon evolutions of common benign liver lesions such as size changes, fibrotic regression, and content and vascularization changes, and their complications such as rupture, hemorrhage, thrombosis, extrinsic compression, and malignancy...
December 19, 2017: Abdominal Radiology
François Tranquart, Paul-Armand Dujardin, Olivier Bouché, Claude Marcus, Christophe Borg, Philippe Manzoni, Jean-Yves Douillard, Catherine Labbe-Devilliers, Eric Terrebonne, Denis Smith, Herve Trillaud, Olivier Capitain, Cristophe Aubé, Jean-Philippe Spano, Olivier Lucidarme, Aurélie Ferru, Jean-Pierre Tasu, Sylvain Manfredi, Aurore Bleuzen, Julie Léger, Thierry Lecomte
Purpose To evaluate changes in tumor vascularization parameters based on contrast-enhanced ultrasound (CEUS) quantification criteria of at least one visible liver metastasis as an early predictor of non-response to chemotherapy, including bevacizumab for colorectal cancer (CRC) liver metastases. Materials and Methods This multicenter prospective study included patients who received first-line bevacizumab-based chemotherapy. Tumor enhancement measured using CEUS within one liver metastasis and in relation to the surrounding healthy liver was quantified within 8 days before the first infusion of bevacizumab (E0), 24 hours after the end of the first infusion of bevacizumab (E1), in the 24 hours before the 2nd and 3 rd infusion of bevacizumab on day 15 (E2) and day 30 (E3), respectively, and after 2 months of treatment (E4)...
December 12, 2017: Ultraschall in der Medizin
Divya Shubham, Anjali S Kawthalkar
OBJECTIVE: To assess the feasibility of the PALM-COEIN system for the classification of abnormal uterine bleeding (AUB) in low-resource settings and to suggest modifications. METHODS: A prospective study was conducted among women with AUB who were admitted to the gynecology ward of a tertiary care hospital and research center in central India between November 2014 and October 2016. All patients were managed as per department protocols. The causes of AUB were classified before treatment using the PALM-COEIN system (classification I) and on the basis of the histopathology reports of the hysterectomy specimens (classification II); the results were compared using classification II as the gold standard...
November 15, 2017: International Journal of Gynaecology and Obstetrics
Oana Catar, Anne-Catherine Aubé-Nathier, Aleksandra Nadaj-Pakleza
No abstract text is available yet for this article.
November 2017: Médecine Sciences: M/S
Malcolm G Munro
Endometrial ablation (EA) includes a spectrum of procedures performed with or without hysteroscopic direction, designed to destroy the endometrium for the treatment of the symptom of heavy menstrual bleeding (HMB) secondary to a spectrum of causes, but most commonly those that are endometrial in origin (AUB-E) or ovulatory disorders (AUB-O). Resectoscopic endometrial ablation (REA) is often mistakenly referred to as the "first generation" technique, while proprietary devices that do not use the resectoscope (nonresectoscopic EA or NREA) are often misperceived as "second generation" devices...
January 2018: Best Practice & Research. Clinical Obstetrics & Gynaecology
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"