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https://www.readbyqxmd.com/read/28719870/effects-of-endocrine-disrupting-chemicals-on-estrogen-receptor-alpha-and-heat-shock-protein-60-gene-expression-in-primary-cultures-of-loggerhead-sea-turtle-caretta-caretta-erythrocytes
#1
Paolo Cocci, Martina Capriotti, Gilberto Mosconi, Francesco Alessandro Palermo
The loggerhead turtle (Caretta caretta) can be considered a good indicator species for studying the ecological impact of endocrine disrupting chemicals (EDCs) on wildlife. However, the effect of these environmental pollutants on nuclear steroid hormone signaling has not yet been addressed in sea turtles mainly due to the legal constraints of their endangered status. Here we describe the use of primary erythrocyte cell cultures as in vitro models for evaluating the effects of different EDCs on the expression of estrogen receptor α (ERα)...
July 15, 2017: Environmental Research
https://www.readbyqxmd.com/read/28719868/quantitative-meta-analytic-approaches-for-the-systematic-synthesis-of-data-and-hazard-identification-a-case-study-of-decreased-pain-sensitivity-due-to-trimethylbenzene-exposure
#2
J Allen Davis, Andrew Kraft
Traditionally, human health risk assessments have relied on qualitative approaches for hazard identification, which involves weight of evidence determinations that integrate evidence across multiple studies. Recently, the National Research Council has recommended the development of quantitative approaches for evidence integration, including the application of meta-analyses, to help summarize and evaluate the results of a systematic review. In the meta-analytic approach, a pooled effect size is calculated after consideration of multiple potential confounding factors in order to determine whether the entire database under consideration indicates a chemical is a hazard...
July 15, 2017: Environmental Research
https://www.readbyqxmd.com/read/28718351/exosomal-hsp60-a-potentially-useful-biomarker-for-diagnosis-assessing-prognosis-and-monitoring-response-to-treatment
#3
Caruso Bavisotto, F Cappello, Ajl Macario, E Conway de Macario, M Logozzi, S Fais, C Campanella
Cell-to-cell communication is imperative for life and it is mediated by sending and receiving information via the secretion and subsequent receptor-mediated detection of biological molecules. Exosomes (EXs) secreted from cells to the extracellular environment play an important role in intercellular communication in normal and pathological conditions. Areas covered: New evidence indicates that tumor cells-derived EXs contribute to cancer progression through the modulation of tumor microenvironment. The exosomal heat shock protein 60 (HSP60) is very likely a key player in intercellular cross-talk, particularly during the progress of diseases, such as cancer...
July 18, 2017: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/28717540/totally-tubeless-percutaneous-nephrolithotomy-is-feasible-in-morbidly-obese-patients
#4
Seyed Mohammad Kazem Aghamir, Mohammad Ghasem Mohseni, Seyed Reza Hosseini, Alborz Salavati, Hossein Ganjali, Mohammad Ali Fallah, Hamed Rezaei, Seyed Saeed Modaresi
OBJECTIVE: Regarding technical difficulties that obese body habitus might impose to percutaneous nephrolithotomy (PNL) success and higher risk of peri-operative complications in this group of patients, we decided to retrospectively gather data from our patients during past 8 years to determine the stone free and complication rates. MATERIAL AND METHODS: Between January 2007-December 2015, seventy-eight obese patients with body mass index over 35 who had indication for PNL including stones larger than 2 cm in pelvi-calyceal system or smaller extracorporeal shock wave lithotripsy (ESWL) resistant stones or who were not a fit candidate for ESWL due to increased skin to target distance, with no contraindication of PNL (including bleeding diathesis, inability to be positioned in prone) were enrolled...
June 2017: Turkish Journal of Urology
https://www.readbyqxmd.com/read/28717532/retrograde-intrarenal-surgery-for-renal-stones-part-1
#5
REVIEW
Ben Van Cleynenbreugel, Özcan Kılıç, Murat Akand
The main aim in the treatment of renal stones is to clearance of the stones completely with the least morbidity. Parallel to the improvements in technology during recent years, new flexible ureterorenoscopes and effective lithotripters such as holmium laser have been developed, thus retrograde intrarenal surgery (RIRS) has become an efficient and safe option in the management of urinary system stone disease with a gradually increasing popularity. Therewithal, innovations in auxiliary equipment such as guide-wires, ureteral access sheath and stone baskets have made this procedure more effective...
June 2017: Turkish Journal of Urology
https://www.readbyqxmd.com/read/28717513/unexpected-intensive-care-transfer-of-admitted-patients-with-severe-sepsis
#6
Gabriel Wardi, Arvin R Wali, Julian Villar, Vaishal Tolia, Christian Tomaszewski, Christian Sloane, Peter Fedullo, Jeremy R Beitler, Matthew Nolan, Daniel Lasoff, Rebecca E Sell
BACKGROUND: Patients with severe sepsis generally respond well to initial therapy administered in the emergency department (ED), but a subset later decompensate and require unexpected transfer to the intensive care unit (ICU). This study aimed to identify clinical factors that can predict patients at increased risk for delayed transfer to the ICU and the association of delayed ICU transfer with mortality. METHODS: This is a nested case-control study in a prospectively collected registry of patients with severe sepsis and septic shock at two EDs...
2017: Journal of Intensive Care
https://www.readbyqxmd.com/read/28717416/feasibility-of-urinary-extracellular-vesicle-proteome-profiling-using-a-robust-and-simple-clinically-applicable-isolation-method
#7
Irene V Bijnsdorp, Olga Maxouri, Aarzo Kardar, Tim Schelfhorst, Sander R Piersma, Thang V Pham, Andre Vis, R Jeroen van Moorselaar, Connie R Jimenez
Extracellular vesicles (EVs) secreted by prostate cancer (PCa) cells contain specific biomarkers and can be isolated from urine. Collection of urine is not invasive, and therefore urinary EVs represent a liquid biopsy for diagnostic and prognostic testing for PCa. In this study, we optimised urinary EV isolation using a method based on heat shock proteins and compared it to gold-standard ultracentrifugation. The urinary EV isolation protocol using the Vn96-peptide is easier, time convenient (≈1.5 h) and no special equipment is needed, in contrast to ultracentrifugation protocol (>3...
2017: Journal of Extracellular Vesicles
https://www.readbyqxmd.com/read/28717248/loss-of-type-9-adenylyl-cyclase-triggers-reduced-phosphorylation-of-hsp20-and-diastolic-dysfunction
#8
Yong Li, Tanya A Baldwin, Yan Wang, Janani Subramaniam, Anibal Garza Carbajal, Cameron S Brand, Shane R Cunha, Carmen W Dessauer
Adenylyl cyclase type 9 (AC9) is found tightly associated with the scaffolding protein Yotiao and the IKs ion channel in heart. But apart from potential IKs regulation, physiological roles for AC9 are unknown. We show that loss of AC9 in mice reduces less than 3% of total AC activity in heart but eliminates Yotiao-associated AC activity. AC9(-/-) mice exhibit no structural abnormalities but show a significant bradycardia, consistent with AC9 expression in sinoatrial node. Global changes in PKA phosphorylation patterns are not altered in AC9(-/-) heart, however, basal phosphorylation of heat shock protein 20 (Hsp20) is significantly decreased...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28716952/differential-involvement-of-the-medial-prefrontal-cortex-across-variants-of-contextual-fear-conditioning
#9
Nicholas A Heroux, Patrese A Robinson-Drummer, Hollie R Sanders, Jeffrey B Rosen, Mark E Stanton
The context preexposure facilitation effect (CPFE) is a contextual fear conditioning paradigm in which learning about the context, acquiring the context-shock association, and retrieving/expressing contextual fear are temporally dissociated into three distinct phases. In contrast, learning about the context and the context-shock association happens concurrently in standard contextual fear conditioning (sCFC). By infusing the GABAA receptor agonist muscimol into medial prefrontal cortex (mPFC) in adolescent Long-Evans rats, the current set of experiments examined the functional role of the mPFC in each phase of the CPFE and sCFC...
August 2017: Learning & Memory
https://www.readbyqxmd.com/read/28716517/lethal-suicide-attempt-with-a-mixed-drug-intoxication-of-metoprolol-and-propafenone-a-first-pediatric-case-report
#10
Ivana Kacirova, Milan Grundmann, Martin Kolek, Erika Vyskocilova-Hrudikova, Romana Urinovska, Petr Handlos
INTRODUCTION: The β1 adrenergic receptor blocker metoprolol is often prescribed together with the antiarrhythmic drug propafenone. Both are metabolized by cytochrome P450 2D6 and propafenone is also an inhibitor of this enzyme. We present a pediatric case showing metoprolol and propafenone intoxication in combination. CASE: A 14-year-old girl was admitted to a local emergency department after ingestion of metoprolol (probably 1g) and propafenone (probably 1.5-3g) in a suicide attempt...
June 29, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28716039/extra-corporeal-membrane-oxygenation-for-refractory-cardiogenic-shock-after-adult-cardiac-surgery-a-systematic-review-and-meta-analysis
#11
Maziar Khorsandi, Scott Dougherty, Omar Bouamra, Vasudev Pai, Philip Curry, Steven Tsui, Stephen Clark, Stephen Westaby, Nawwar Al-Attar, Vipin Zamvar
BACKGROUND: Postcardiotomy cardiogenic shock (PCCS) refractory to inotropic support and intra-aortic balloon pump (IABP) occurs rarely but is almost universally fatal without mechanical circulatory support. In this systematic review and meta-analysis we looked at the evidence behind the use of veno-arterial extra-corporeal membrane oxygenation (VA ECMO) in refractory PCCS from a patient survival rate and determinants of outcome viewpoint. METHODS: A systematic review was performed in January 2017 using PubMed (with no defined time period) using the keywords "postcardiotomy", "cardiogenic shock", "extracorporeal membrane oxygenation" and "cardiac surgery"...
July 17, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28715125/acute-alcohol-binge-deteriorates-metabolic-and-respiratory-compensation-capability-after-blunt-chest-trauma-followed-by-hemorrhagic-shock-a-new-research-model
#12
Nils Wagner, Niklas Franz, Scott Dieteren, Mario Perl, Katharina Mörs, Ingo Marzi, Borna Relja
BACKGROUND AND PURPOSE: The clinical relevance of blunt (thoracic) chest trauma (TxT) and hemorrhagic shock is indisputable due to the high prevalence of this injury type, as well as its close association with mortality and/or preventable deaths. Furthermore, there is an ongoing discussion about the influence of alcohol in trauma patients. Thus, we established a model of TxT followed by hemorrhagic shock and resuscitation (H/R) in alcohol-intoxicated rats. EXPERIMENTAL APPROACH: Depending on group allocation, twelve (sub-acute) or two (acute) hours before experimentation, the animals received a single oral dose of alcohol (ethanol, EtOH) or saline (NaCl) followed by TxT, hemorrhagic shock (35 ± 3 mm Hg) and resuscitation (TxT+H/R)...
July 17, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28714514/nuclear-expression-of-y-box-binding-1-is-important-for-resistance-to-chemotherapy-including-gemcitabine-in-tp53-mutated-bladder-cancer
#13
Takahisa Yamashita, Morihiro Higashi, Shuji Momose, Makoto Morozumi, Jun-Ichi Tamaru
The development and acquisition of multiple drug resistance in cancer cells remain a major obstacle in the treatment of bladder cancer. Nuclear translocation of Y box binding-1 (YB-1), which is a member of a family of DNA-binding proteins that contain a cold shock domain, plays a significant role in the acquisition of drug resistance by upregulating expression of the multidrug resistance-1 (MDR-1) gene product, p-glycoprotein. The tumor suppressor protein p53 is thought to be essential for nuclear translocation of YB-1...
August 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28713101/-extracorporeal-shock-waves-esw-as-an-alternative-treatment-method-for-improving-the-limb-muscles-spasticity-after-cerebral-stroke-a-systematic-review-of-the-literature
#14
Robert Dymarek, Kuba Ptaszkowski, Lucyna Słupska, Małgorzata Paprocka-Borowicz, Jakub Taradaj, Tomasz Halski, Joanna Rosińczuk
Extracorporeal shock wave (ESW) is a physical factor, of which the clinical use is observed in a wide range of disorders, particularly musculoskeletal dysfunctions. Recently, one can observe that the list of indications for ESW treatment is continuously growing and adapting the increasingly different systemic diseases in terms of etiology and pathomechanism. Nevertheless, it should be remembered that the potential biological mechanisms of ESW stimulation conditioning advantageous and desirable therapeutic effects are not clearly explained...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28709666/novel-rotational-speed-modulation-system-used-with-venoarterial-extracorporeal-membrane-oxygenation
#15
Noritsugu Naito, Takashi Nishimura, Kei Iizuka, Yutaka Fujii, Yoshiaki Takewa, Akihide Umeki, Masahiko Ando, Minoru Ono, Eisuke Tatsumi
BACKGROUND: Femoral venoarterial extracorporeal membrane oxygenation (VA-ECMO) is widely used to maintain blood flow in patients with cardiogenic shock. However, retrograde blood flow increases left ventricular (LV) afterload during femoral VA-ECMO. Additional support by means of an intraaortic balloon pump (IABP) alleviates LV afterload but is associated with significant adverse events. We previously developed a system for rotational speed modulation in synchrony with the native cardiac cycle, for use with implantable continuous-flow LV assist devices...
July 11, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28707656/-regulation-of-heat-shock-gene-expression-in-response-to-stress
#16
D G Garbuz
Heat shock (HS) genes, or stress genes, code for a number of proteins that collectively form the most ancient and universal stress defense system. The system determines the cell capability of adaptation to various adverse factors and performs a variety of auxiliary functions in normal physiological conditions. Common stress factors, such as higher temperatures, hypoxia, heavy metals, and others, suppress transcription and translation for the majority of genes, while HS genes are upregulated. Transcription of HS genes is controlled by transcription factors of the HS factor (HSF) family...
May 2017: Molekuliarnaia Biologiia
https://www.readbyqxmd.com/read/28707322/development-and-validation-of-a-risk-model-for-long-term-mortality-after-percutaneous-coronary-intervention-the-idea-bio-study
#17
Nick van Boven, Ron T van Domburg, Isabella Kardys, Victor A Umans, K Martijn Akkerhuis, Mattie J Lenzen, Marco Valgimigli, Joost Daemen, Felix Zijlstra, Eric Boersma, Robert-Jan van Geuns
OBJECTIVES: We aimed to develop a model to predict long-term mortality after percutaneous coronary intervention (PCI), to aid in selecting patients with sufficient life expectancy to benefit from bioabsorbable scaffolds. BACKGROUND: Clinical trials are currently designed to demonstrate superiority of bioabsorbable scaffolds over metal devices up to 5 years after implantation. METHODS: From 2000 to 2011, 19.532 consecutive patients underwent PCI in a tertiary referral hospital...
July 14, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28705247/detecting-impaired-myocardial-relaxation-in-sepsis-with-a-novel-tissue-doppler-parameter-septal-e-s
#18
David J Clancy, Michel Slama, Stephen Huang, Timothy Scully, Anthony S McLean, Sam R Orde
BACKGROUND: Left ventricular diastolic dysfunction is associated with mortality outcomes in severe sepsis and septic shock. There are ongoing issues with diagnosing diastolic dysfunction in this cohort, partly owing to the poor applicability of traditional parameters in the hyperdynamic circulation. In this feasibility study, we sought to assess the utility of a novel parameter (septal e'/s') to identify diastolic dysfunction in patients with severe sepsis and septic shock who had normal systolic function against the 2016 American Society Echocardiography and European Association of Cardiovascular Imaging (ASE/EACI) guidelines on diastolic dysfunction...
July 14, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28704659/preheating-mitigates-cadmium-toxicity-in-zebrafish-livers-evidence-from-promoter-demethylation-gene-transcription-to-biochemical-levels
#19
Jia-Lang Zheng, Sai-Nan Guo, Shuang-Shuang Yuan, Hu Xia, Qing-Ling Zhu, Zhen-Ming Lv
The working hypothesis for this study was that moderate heat stress would alleviate the deleterious effects of subsequent cadmium (Cd) exposure on fish. Thus, zebrafish (Danio rerio) were subjected to water maintained at 26°C and 34°C for 4days, and then exposed to 0 or 200μg/L Cd for 1 week at 26°C. Multiple indicators were measured from livers of zebrafish at different levels, including DNA, RNA, protein and enzymatic activity associated with oxidative stress, inflammation and metal transport. The ameliorative effect of preheatinging on Cd toxicity was demonstrated...
June 26, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28704244/implementation-of-a-standardized-transfusion-protocol-for-cardiac-patients-treated-with-venoarterial-extracorporeal-membrane-oxygenation-is-associated-with-decreased-blood-component-utilization-and-may-improve-clinical-outcome
#20
Christine M Cahill, Neil Blumberg, Amy E Schmidt, Peter A Knight, Amber L Melvin, Howard T Massey, Joseph M Delehanty, Seth B Zebrak, Majed A Refaai
BACKGROUND: Extracorporeal membrane oxygenation supplies oxygenated blood to the body supporting the heart and lungs. Survival rates of 20% to 50% are reported among patients receiving ECMO for cardiac arrest, severe cardiogenic shock, or failure to wean from cardiopulmonary bypass following cardiac surgery. Bleeding is one of the most common complications in ECMO patients due to coagulopathy, systemic anticoagulation, and the presence of large bore cannulas at systemic pressure. Absence of a standardized transfusion protocol in this population leads to inconsistent transfusion practices...
July 10, 2017: Anesthesia and Analgesia
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