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https://www.readbyqxmd.com/read/28441571/negative-histology-with-surgically-treated-tubal-ectopic-pregnancies-a-retrospective-cohort-study
#1
Linda Farahani, Anjita Sinha, Jilly Lloyd, Melissa Islam, Jackie A Ross
OBJECTIVE: To determine the outcome of histological examinations of surgical specimens obtained from treatment of tubal ectopic pregnancy and to correlate with clinical findings, pre-operative ultrasound scans and the type of surgery. STUDY DESIGN: A retrospective cohort study of 941 women diagnosed with a tubal ectopic pregnancy in the Early Pregnancy Unit and having surgical treatment at King's College Hospital, London. Clinical and ultrasound data had been entered contemporaneously on our electronic early pregnancy database and hospital clinical records over an 11year period from 2004 to 2014...
April 2, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28441551/treating-normal-early-gestation-placentae-with-preeclamptic-sera-produces-extracellular-micro-and-nano-vesicles-that-activate-endothelial-cells
#2
Xirong Xiao, Fengyi Xiao, Mingzhi Zhao, Mancy Tong, Michelle R Wise, Peter R Stone, Lawrence W Chamley, Qi Chen
OBJECTIVES: Preeclampsia is characterised by systemic endothelial cell dysfunction thought to be triggered by toxic/dangerous factors from the placenta, including placental extracellular vesicles (EVs). Why placental EVs become toxic is unknown. We previously reported that preeclamptic sera produced toxic/dangerous placental macrovesicles but whether small EVs are also toxic/dangerous in preeclampsia is unknown. STUDY DESIGN: First trimester placental explants were treated with 10% preeclamptic or control sera (n=10) for 24h...
April 14, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/28441488/formaldehyde-hcho-as-a-hazardous-air-pollutant-mapping-surface-air-concentrations-from-satellite-and-inferring-cancer-risks-in-the-united-states
#3
Lei Zhu, Daniel J Jacob, Frank N Keutsch, Loretta J Mickley, Richard D Scheffe, Madeleine Strum, Gonzalo González Abad, Kelly Chance, Kai Yang, Bernhard Rappenglueck, Dylan B Millet, Munkhbayar Baasandorj, Lyatt Jaeglé, Viral Pinakin Shah
Formaldehyde (HCHO) is the most important carcinogen in outdoor air among the 187 hazardous air pollutants (HAPs) identified by the US Environmental Protection Agency (EPA), not including ozone and particulate matter. However, surface observations of HCHO are sparse and the EPA monitoring network could be prone to positive interferences. Here we use 2005-2016 summertime HCHO column data from the OMI satellite instrument, validated with high-quality aircraft data and oversampled on a 5 × 5 km(2) grid, to map surface air HCHO concentrations across the contiguous US...
April 25, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28441487/the-isomeric-preference-of-an-atypical-dopamine-transporter-inhibitor-contributes-to-its-selection-of-the-transporter-conformation
#4
Ara M Abramyan, Sebastian Stolzenberg, Zheng Li, Claus J Loland, Frank Noé, Lei Shi
Cocaine, a widely abused psychostimulant, inhibits the dopamine transporter (DAT) by trapping the protein in an outward-open conformation, whereas atypical DAT inhibitors such as benztropine have low abuse liability and prefer less outward-open conformations. Here, we use a spectrum of computational modeling and simulation approaches to obtain the underlying molecular mechanism in atomistic detail. Interestingly, our quantum mechanical calculations and molecular dynamics (MD) simulations suggest that a benztropine derivative JHW007 prefers a different stereoisomeric conformation of tropane in binding to DAT compared to that of a cocaine derivative, CFT...
April 25, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28441464/crucial-roles-of-pox-neuro-in-the-developing-ellipsoid-body-and-antennal-lobes-of-the-drosophila-brain
#5
Shilpi Minocha, Werner Boll, Markus Noll
The paired box gene Pox neuro (Poxn) is expressed in two bilaterally symmetric neuronal clusters of the developing adult Drosophila brain, a protocerebral dorsal cluster (DC) and a deutocerebral ventral cluster (VC). We show that all cells that express Poxn in the developing brain are postmitotic neurons. During embryogenesis, the DC and VC consist of only 20 and 12 neurons that express Poxn, designated embryonic Poxn-neurons. The number of Poxn-neurons increases only during the third larval instar, when the DC and VC increase dramatically to about 242 and 109 Poxn-neurons, respectively, virtually all of which survive to the adult stage, while no new Poxn-neurons are added during metamorphosis...
2017: PloS One
https://www.readbyqxmd.com/read/28441450/commensal-bacteria-and-essential-amino-acids-control-food-choice-behavior-and-reproduction
#6
Ricardo Leitão-Gonçalves, Zita Carvalho-Santos, Ana Patrícia Francisco, Gabriela Tondolo Fioreze, Margarida Anjos, Célia Baltazar, Ana Paula Elias, Pavel M Itskov, Matthew D W Piper, Carlos Ribeiro
Choosing the right nutrients to consume is essential to health and wellbeing across species. However, the factors that influence these decisions are poorly understood. This is particularly true for dietary proteins, which are important determinants of lifespan and reproduction. We show that in Drosophila melanogaster, essential amino acids (eAAs) and the concerted action of the commensal bacteria Acetobacter pomorum and Lactobacilli are critical modulators of food choice. Using a chemically defined diet, we show that the absence of any single eAA from the diet is sufficient to elicit specific appetites for amino acid (AA)-rich food...
April 2017: PLoS Biology
https://www.readbyqxmd.com/read/28441447/tumor-response-assessment-by-mri-following-stereotactic-body-radiation-therapy-for-hepatocellular-carcinoma
#7
Guillaume Oldrini, Andres Huertas, Sophie Renard-Oldrini, Hélène Taste-George, Guillaume Vogin, Valérie Laurent, Julia Salleron, Philippe Henrot
BACKGROUND: To evaluate the MRI features of a tumor response, local control, and predictive factors of local control after stereotactic body radiation therapy (SBRT) for hepatocellular carcinoma (HCC). METHODS: Thirty-five consecutive patients with 48 HCCs who were treated by SBRT were included in this retrospective study. All patients provided written informed consent to be treated by SBRT, and prior to inclusion they authorized use of the treatment data for further studies...
2017: PloS One
https://www.readbyqxmd.com/read/28441255/european-society-of-gynaecological-oncology-guidelines-for-the-management-of-patients-with-vulvar-cancer
#8
Maaike H M Oonk, François Planchamp, Peter Baldwin, Mariusz Bidzinski, Mats Brännström, Fabio Landoni, Sven Mahner, Umesh Mahantshetty, Mansoor Mirza, Cordula Petersen, Denis Querleu, Sigrid Regauer, Lukas Rob, Roman Rouzier, Elena Ulrikh, Jacobus van der Velden, Ignace Vergote, Linn Woelber, Ate G J van der Zee
OBJECTIVE: The aim of this study was to develop clinically relevant and evidence-based guidelines as part of European Society of Gynaecological Oncology's mission to improve the quality of care for women with gynecologic cancers across Europe. METHODS: The European Society of Gynaecological Oncology Council nominated an international development group made of practicing clinicians who provide care to patients with vulvar cancer and have demonstrated leadership and interest in the management of patients with vulvar cancer (18 experts across Europe)...
May 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28441252/paget-s-disease-of-the-vulva-a-review-of-20-years-experience
#9
Raghava Parashurama, Vivek Nama, Richard Hutson
BACKGROUND: Extramammary Paget's disease is a rare condition, and the vulva is a common site for it to occur. Despite this, there is a paucity of literature on Paget's disease of the vulva (VPD). A Cochrane meta-analysis could not draw any conclusions on interventions in VPD. Our aim was to review our practice and improve further management of VPD in our center. METHODS: We reviewed all the cases presented to Leeds Gynaecological Oncology Centre between 1988 and 2016...
May 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28440998/-extranodal-nk-t-cell-lymphoma-nasal-type-in-granulomatosis-with-polyangiitis-a-case-report
#10
Sergio Alberto Mendoza-Álvarez, Fátima Margarita Rodríguez-Dávila, Leslie Moranchel-García, Virginia Soto, Natalia Quisped
BACKGROUND: Granulomatosis with polyangiitis (GP) is a systemic necrotizing vasculitis with multi-organ involvement that primarily affects the respiratory tract and the kidneys. Fever in these patients is an indicator of activity; however, if it arises in isolation, the physician should exclude other causes. CLINICAL CASE: Male patient admitted due to an unexplained fever and weight loss; it was diagnosed GP by a history of pauci-immune glomerulonephritis, fixed pulmonary nodules and chronic sinusitis of four years of evolution; however, the fever persisted despite treatment and in the absence of infection...
May 2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28440978/methylation-status-of-p16ink4a-in-human-papillomavirus-associated-cancer-of-oral-cavity-and-oropharynx-in-northeastern-thailand
#11
Piyawut Swangphon, Chamsai Pientong, Ati Burassakarn, Patravoot Vatanasapt, Pilaiwan Kleebkaow, Natcha Patarapadungkit, Thanabut Treebupachatsakul, Supannee Promthet, Bunkerd Kongyingyoes, Tipaya Ekalaksananan
Background: Over-expression of p16INK4a protein is a biomarker for human papillomavirus (HPV)-associated cervical cancer. However, absence of p16INK4a protein expression in HPV-associated cancer of the oral cavity and oropharynx has been reported. Among a number of possible reasons for this is methylation, which is frequently noted in the promoter region of p16INK4a and is associated with silencing of the gene and disease severity. Methods: We investigated the relationships between p16INK4a protein expression, HPV infection and methylation status of the p16INK4a promoter in cancers of the oral cavity and oropharynx...
March 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28440932/microplastics-in-a-freshwater-environment-receiving-treated-wastewater-effluent
#12
Steven Lasee, Jessica Mauricio, William A Thompson, Adcharee Karnjanapiboonwong, John Kasumba, Seenivasan Subbiah, Audra N Morse, Todd A Anderson
Small plastic fragments (microplastics or solid particles <5 mm in size or "microbeads" used in personal care products and cosmetics) may ultimately find their way into aquatic environments. We studied the presence of microplastics (particle sizes 53-105 μm and 106-179 μm) spatially and temporally in 3 connected urban lakes being fed by treated wastewater effluent in Lubbock, Texas. These lakes also serve as drainage during storm events. Water samples from drainage playa wetlands within the city were also collected...
May 2017: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/28440735/nuclear-factor-e2-related-factor-2-knockdown-enhances-glucose-uptake-and-alters-glucose-metabolism-in-aml12-hepatocytes
#13
Xiaoyang Yuan, Huijing Huang, Yi Huang, Jinli Wang, Jinhua Yan, Ling Ding, Cuntai Zhang, Le Zhang
Nuclear factor E2-related factor 2 (Nrf2) is a transcription factor known to induce the expression of a variety of antioxidant and detoxification genes. Recently, increasing evidence has revealed roles for Nrf2 in glucose, lipid, and energy metabolism; however, the exact functions of Nrf2 in hepatocyte biology are largely unclear. In the current study, the transient knockdown of Nrf2 via siRNA transfection enhanced the glucose uptake of fasting AML12 hepatocytes to 325.3 ± 11.1% ( P < 0.05) of that of untransfected control cells...
May 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28440714/hypereosinophilic-syndrome-endomyocardial-biopsy-versus-echocardiography-to-diagnose-cardiac-involvement
#14
Joseph H Butterfield, Garvan C Kane, Catherine R Weiler
OBJECTIVE: To compare echocardiograms and endomyocardial biopsies to diagnose cardiac involvement in hypereosinophilic syndrome. METHODS: We examined the agreement between echocardiography and endomyocardial biopsies to detect cardiac involvement in hypereosinophilic syndrome by reviewing cases identified as hypereosinophilia or hypereosinophilic syndrome in Mayo Clinic databases from January 1978 through June 2009. Single-organ cases of eosinophilia such as eosinophilic fasciitis and eosinophilic gastroenteritis were excluded...
April 25, 2017: Postgraduate Medicine
https://www.readbyqxmd.com/read/28440624/acid-base-catalysis-in-glycosidations-a-nature-derived-alternative-to-the-generally-employed-methodology
#15
Peng Peng, Richard R Schmidt
Inverting glycosyltransferases enforce in the active site an intramolecular, acid-base catalyzed glycosidation that, due to proximity of the donor anomeric carbon and the acceptor hydroxyl group, follows an SN2-type reaction. Spacers, tethering donor and acceptor via nonreacting functional groups, led in intramolecular glycosidations to excellent yields and, independent of the donor anomeric configuration, to either the α- or the β-anomer. The requirement of a demanding protecting group pattern confines the application of this efficient method...
April 25, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28440604/a-proposed-novel-framework-for-monitoring-and-evaluation-of-the-cascade-of-hiv-associated-tb-care-at-the-health-facility-level
#16
Colleen F Hanrahan, Annelies Van Rie
INTRODUCTION: The rapid and accurate diagnosis of HIV-associated tuberculosis (TB), timely initiation of curative or preventative treatment and assurance of favourable treatment outcomes is a complex process. The current system of monitoring and reporting TB diagnosis and treatment does not include several key aspects of the care cascade, and may obscure systematic bottlenecks, inefficiencies or sources of sub-optimal care. METHODS: We critically reviewed the current World Health Organizations recommended system of monitoring and reporting, and identified the following key deficiencies that could limit the ability of healthcare workers to identify structural problems in the provision of TB/HIV care...
April 20, 2017: Journal of the International AIDS Society
https://www.readbyqxmd.com/read/28440586/comparison-of-preoperative-quantitative-magnetic-resonance-imaging-and-clinical-assessment-of-deep-pain-perception-as-prognostic-tools-for-early-recovery-of-motor-function-in-paraplegic-dogs-with-intervertebral-disk-herniations
#17
A Wang-Leandro, J S Siedenburg, M K Hobert, P Dziallas, K Rohn, V M Stein, A Tipold
BACKGROUND: Prognostic tools to predict early postoperative motor function recovery (MFR) after thoracolumbar intervertebral disk herniation (IVDH) in paraplegic dogs represent an opportunity to timely implement novel therapies that could shorten recovery times and diminish permanent neurological dysfunctions. HYPOTHESIS: Fractional anisotropy (FA) values obtained using diffusion tensor imaging have a higher prognostic value than a lesion extension ratio in T2-weighted images (T2W-LER) and clinical assessment of deep pain perception (DPP) for MFR...
April 25, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28440514/silibinin-downregulates-mmp2-expression-via-jak2-stat3-pathway-and-inhibits-the-migration-and-invasive-potential-in-mda-mb-231-cells
#18
Hyo Joo Byun, Pramod Darvin, Dong Young Kang, Nipin Sp, Youn Hee Joung, Jong Hwan Park, Sun Jin Kim, Young Mok Yang
Worldwide, breast cancer (BCa) is the most common cancer in women. Among its subtypes, triple-negative breast cancer (TNBC) is an aggressive form associated with diminished survival. TNBCs are characterized by their absence, or minimal expression, of the estrogen and progesterone receptors, as well as the human epidermal growth factor receptor 2 (i.e. ER-/-, PR-/-, Her2-/Low). Consequently, treatment for this subtype of BCa remains problematic. Silibinin, a derivative of the flavonoid silymarin, is reported to have anticancer activities against hepatic and non-small cell lung cancers...
April 19, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28440316/modest-and-severe-maternal-iron-deficiency-in-pregnancy-are-associated-with-fetal-anaemia-and-organ-specific-hypoxia-in-rats
#19
Andrew G Woodman, Alison S Care, Yael Mansour, Stephana J Cherak, Sareh Panahi, Ferrante S Gragasin, Stephane L Bourque
Prenatal iron-deficiency (ID) is known to alter fetal developmental trajectories, which predisposes the offspring to chronic disease in later life, although the underlying mechanisms remain unclear. Here, we sought to determine whether varying degrees of maternal anaemia could induce organ-specific patterns of hypoxia in the fetuses. Pregnant female Sprague Dawley rats were fed iron-restricted or iron-replete diets to induce a state of moderate (M-ID) or severe ID (S-ID) alongside respective controls. Ultrasound biomicroscopy was performed on gestational day (GD)20 to assess uterine and umbilical artery blood flow patterns...
April 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28439813/simultaneous-heavy-metal-removal-and-anthracene-biodegradation-by-the-oleaginous-bacteria-rhodococcus-opacus
#20
Lalit Goswami, N Arul Manikandan, Kannan Pakshirajan, G Pugazhenthi
This study investigated simultaneous heavy metals removal and anthracene biodegradation by Rhodococcus opacus at different initial anthracene concentrations in the range 50-200 mg L(-1). The heavy metals tested were Fe(III), Cu(II), Zn(II), Cd(II), Ni(II), and Pb(II) at 10 mg L(-1) initial concentration: The organism was found to be well capable of removing the heavy metals along with high anthracene biodegradation efficiency. However, anthracene biodegradation rate by the organism was reduced due to these heavy metals...
May 2017: 3 Biotech
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