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Michael Korenkov
The video-assisted subcutaneous destruction of the sinus tract (VADST) is a novel, minimally-invasive technique for the treatment of pilonidal sinus disease (PSD). This is an advancement of the previously described subcutaneous destruction of the sinus tract and the removal of hairs as well as the long-term vessel-loop drainage of the wound channel (DST). Although the first results of this operation seemed to be promising, some of my colleagues felt that the blind approach to this procedure could be its potential "weak point"...
March 12, 2018: Surgical Technology International
Go Saito, Masato Kono, Akari Tsutsumi, Yu Koyanagi, Koichi Miyashita, Takeshi Kobayashi, Hironao Hozumi, Yoshihiro Miki, Yoshifumi Arai, Yoshiro Otsuki, Dai Hashimoto, Tomoyuki Fujisawa, Toru Nakamura, Takafumi Suda, Hidenori Nakamura
A 68-year-old woman was admitted to our hospital with fever and pleural effusion. Her thoracentesis showed eosinophilic pleural effusion (EPE) without any evidence of malignancy, infection, or trauma. Pleural biopsy revealed pleuritis and intercostal myositis. Characteristic skin manifestations, including Gottron's sign, interstitial lung disease, and pericardial effusion, appeared later in the clinical course. She was finally diagnosed with anti-PL-7 antisynthetase syndrome (ASS) based on the presence of anti-PL-7 antibody, and she fulfilled the diagnostic criteria for dermatomyositis...
March 9, 2018: Internal Medicine
José Ramón Ausó-Pérez, Gloria María Rodríguez-Blanes
BACKGROUND: Synovial proliferation is a rather frequent intraoperative finding during the surgery of a total knee replacement. The aim of this study is to asses whether the standard procedure of a synovectomy results in changes in blood loss and in the need for transfusion in the immediate postoperative time after the total knee replacement. METHODS: A prospective cohort study was performed with 120 patients undergoing total knee replacement (60 with synovectomy and 60 without it)...
March 9, 2018: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
Victoria Obermoser, Daniel Baecker, Carina Schuster, Valentin Braun, Brigitte Kircher, Ronald Gust
[(Prop-2-ynyl)-2-acetoxybenzoate]dicobalthexacarbonyl (Co-ASS), an organometallic derivative of the irreversible cyclooxygenase-1/2 (COX-1/2) inhibitor acetylsalicylic acid (ASS), demonstrated high growth-inhibitory potential against various tumor cell lines and inhibition of both COX isoenzymes. With the objective of increasing the selectivity for COX-2, we introduced a chlorine substituent in position 3, 4, 5, or 6 of the ASS moiety, respectively. Increased COX-2 selectivity is desirable as this isoenzyme is predominantly related to the development of cancer and abnormal tissue growth...
March 1, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
Cristiano Bombardi, Marcello Venzi, Vincenzo Crunelli, Giuseppe Di Giovanni
Absence seizures (ASs) are associated with abnormalities in gamma-aminobutyric acid (GABA) neurotransmission in the thalamus and the cortex. In the present study, we used light microscopy GABA immunocytochemistry to quantify the GABA-immunoreactive (GABA-IR) neurons and neuropil in the thalamic ventral basal (VB) nucleus, the nucleus reticularis thalami (NRT), the dorsal lateral geniculate (dLGN), the primary motor cortex (M1) and perioral region of the somatosensory cortex (S1po) of genetic absence epilepsy rats from Strasbourg (GAERS)...
February 19, 2018: Neuropharmacology
Agnieszka Żyromska, Bogdan Małkowski, Tomasz Wiśniewski, Karolina Majewska, Joanna Reszke, Roman Makarewicz
OBJECTIVE: Studies examining radiation-induced heart toxicity in breast cancer patients are inconclusive. The aim of this study was to prospectively and quantitatively asses myocardial blood flow (MBF) with, for the first time, 15O-H2O PET/CT as a marker of heart damage in irradiated breast cancer patients. METHODS: Fifteen breast cancer patients receiving intact breast or chest wall irradiation were included in the analysis (six with right-sided and nine with left-sided breast cancer)...
February 22, 2018: British Journal of Radiology
Vikram Kapoor, Duc Phan, A B M Tanvir Pasha
While the variety of engineered nanoparticles used in consumer products continues to grow, the use of metal oxide nanoparticles in electronics, textiles, cosmetics and food packaging industry has grown exponentially in recent years, which will inevitably result in their release into wastewater streams in turn impacting the important biological processes in wastewater treatment plants. Among these processes, nitrification play a critical role in nitrogen removal during wastewater treatment, however, it is sensitive to a wide range of inhibitory substances including metal oxide nanoparticles...
February 22, 2018: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
Aleksandra Ciepłucha, Olga Trojnarska, Anna Kociemba, Magdalena Łanocha, Mikolaj Barczynski, Szymon Rozmiarek, Lucyna Kramer, Malgorzata Pyda
Heart failure and arrhythmia are common complications in adults with Ebstein's anomaly. They may result not only from hemodynamic alterations, but also from myocardial fibrosis. Late gadolinium enhancement (LGE) by CMR enables the evaluation of myocardial fibrosis. The aim of the study was to asses the presence of LGE and its relation to clinical outcome. We studied a group of 37 unoperated adults aged 43.0 ± 14.4 years with Ebstein's anomaly from the congenital heart disease outpatient clinic. Study protocol included: cardiopulmonary test, assessment of supraventricular arrhythmia (SVA), and CMR with evaluation of cardiac chambers' morphology and function, and presence of LGE...
February 21, 2018: Heart and Vessels
Susanne Drückler, Martijn S van Rooijen, Henry J C de Vries
OBJECTIVES: Chemsex (i.e., drug use during sex) is practiced by some men who have sex with men (MSM) and is associated with high-risk behavior. In a cross-sectional study at the sexually transmitted infection (STI) clinic of Amsterdam, we explored chemsex practices, risk behavior, and STI prevalence. METHOD: A survey on chemsex (γ-hydroxybutyrate, crystal methamphetamine, and/or mephedrone) was offered to clinic clients during routine STI screening and to Amsterdam users of a gay online dating app...
November 15, 2017: Sexually Transmitted Diseases
Bert van Loo, Markus Schober, Eugene Valkov, Magdalena Heberlein, Erich Bornberg-Bauer, Kurt Faber, Marko Hyvönen, Florian Hollfelder
Hydrolysis of organic sulfate esters proceeds by two distinct mechanisms, water attacking at either sulfur (S-O bond cleavage) or carbon (C-O bond cleavage). In primary and secondary alkyl sulfates attack at carbon is favored, whereas in aromatic sulfates and sulfated sugars attack at sulfur is preferred. This mechanistic distinction is mirrored in the classification of enzymes that catalyze sulfate ester hydrolysis: arylsulfatases catalyze S-O cleavage in sulfate sugars and arylsulfates and alkyl sulfatases break the C-O bond of alkyl sulfates...
February 16, 2018: Journal of Molecular Biology
Samina Ismail, Safia Awan, Rubaba Naeem, Sarfraz Siddiqui, Badar Afzal, Bushra Jamil, Uzma Rahim Khan
OBJECTIVE: Health care providers (HCPs) are at risk of occupational exposure to HIV infection. In developing world these exposure occur due to general lack of awareness, education and structured training of HCPs. The objective of the study was to asses if continuing medical education symposium can be used as an effective educational tool to improve attitude, awareness and knowledge regarding occupational exposure to HIV infection. This quasi-experimental study was conducted among HCPs from Karachi, Pakistan...
February 15, 2018: BMC Research Notes
Giuseppe Protano, Francesco Nannoni
A geochemical study was carried out at the former Abbadia San Salvatore (ASS) mining site of the Monte Amiata ore district (Italy). Hg, As and Sb total contents and fractionation using a sequential extraction procedure were determined in soil and mining waste samples. Ore processing activities provided a different contribution to Hg contamination and concentration in soil fractions, influencing its behaviour as volatility and availability. Soils of roasting zone showed the highest Hg contamination levels mainly due to the deposition of Hg released as Hg 0 by furnaces during cinnabar roasting...
February 9, 2018: Chemosphere
Henryk Jęśko, Walter J Lukiw, Anna Wilkaniec, Magdalena Cieślik, Magdalena Gąssowska-Dobrowolska, Emilia Murawska, Wojciech Hilgier, Agata Adamczyk
Urea cycle enzymes may play important yet poorly characterized roles in Alzheimer's disease (AD). Our previous results showed that amyloid-β (Aβ) affects urea cycle enzymes in rat pheochromocytoma (PC12) cells. The aim of the present study was to investigate the changes in arginases, other urea cycle enzymes, and nitric oxide synthases (NOSs) in PC12 cells transfected with AβPP bearing the double 'Swedish' mutation (APPsw, K670M/N671L) and in postmortem sporadic AD brain hippocampus; the mutation intensifies Aβ production and strongly associates with AD neuropathology...
2018: Journal of Alzheimer's Disease: JAD
E Zare, A Beucher, J Huang, A Boman, S Mattbäck, M H Greve, J Triantafilis
One of the major environmental issues in Finland is the presence of large tracts of acid sulfate soil (ASS) landscapes along the coast. Accurately identifying the distribution of ASS sediments, and in particular soil pH, is essential for developing targeted management strategies. One approach is the use of digital soil mapping (DSM) with various ancillary information. Although electromagnetic (EM) induction data has shown potential in mapping ASS, few studies have been conducted to map the spatial distribution of pH at different depths...
February 8, 2018: Journal of Environmental Management
Jaywant Pawar, Dilipkumar Suryawanshi, Kailas Moravkar, Rahul Aware, Vasant Shetty, Mohammed Maniruzzaman, Purnima Amin
The current study investigates the dissolution rate performance of amorphous solid solutions of a poorly water-soluble drug, efavirenz (EFV), in amorphous Soluplus® (SOL) and Kollidon® VA 64 (KVA64) polymeric systems. For the purpose of the study, various formulations with varying drug loadings of 30, 50, and 70% w/w were developed via hot-melt extrusion processing and adopting a Box-Behnken design of experiment (DoE) approach. The polymers were selected based on the Hansen solubility parameter calculation and the prediction of the possible drug-polymer miscibility...
February 9, 2018: Drug Delivery and Translational Research
Andrzej Bożek, Izabella Krupa-Borek, Jerzy Jarzab
Introduction: It is valuable to determine the long-term efficacy of allergen-specific immunotherapy (SIT) and whether it can cure allergy. Aim: For this study, patients were prospectively observed for 20 years after completion of SIT to determine its effectiveness. Material and methods: A total of 1006 patients who underwent SIT for pollen allergy were observed for 20 years to assess the efficacy of SIT. The rhinitis symptom score (RSS) and asthma symptom score (ASS) were measured after SIT completion...
December 2017: Postȩpy Dermatologii i Alergologii
Lina Mörén, Richard Perryman, Tim Crook, Julia K Langer, Kevin Oneill, Nelofer Syed, Henrik Antti
BACKGROUND: Tumour cells have a high demand for arginine. However, a subset of glioblastomas has a defect in the arginine biosynthetic pathway due to epigenetic silencing of the rate limiting enzyme argininosuccinate synthetase (ASS1). These tumours are auxotrophic for arginine and susceptible to the arginine degrading enzyme, pegylated arginine deiminase (ADI-PEG20). Moreover, ASS1 deficient GBM have a worse prognosis compared to ASS1 positive tumours. Since altered tumour metabolism is one of the hallmarks of cancer we were interested to determine if these two subtypes exhibited different metabolic profiles that could allow for their non-invasive detection as well as unveil additional novel therapeutic opportunities...
February 8, 2018: BMC Cancer
F Rampinelli, P Donarini, C Visenzi, S Ficarelli, G Ciravolo
BACKGROUND: To asses the results of laparoscopic surgical treatment of bowel endometriosis with transvaginal resection of the rectum employing ultrasonic energy retrospective study. METHOD: 100 patients with symptoms of narrowing or partial obstruction of colon were submitted to laparoscopic resection of rectosigmoid tract through a vaginal route. Length of surgery, blood loss, histopathological extent of rectal invasion, surgical complications, and length of hospital stay were the main analyzed outcomes...
February 7, 2018: Archives of Gynecology and Obstetrics
Niloofar Karimian, Scott G Johnston, Edward D Burton
Acid sulfate soils (ASS) contain substantial quantities of iron sulfide minerals or the oxidation reaction products of these sulfidic minerals. Transformation of iron (Fe) and sulfur (S) bearing minerals is an important process in ASS wetlands with fluctuating redox conditions. A range of potentially toxic metals and metalloids can either be adsorbed on or incorporated into the structure of Fe and S bearing minerals. Therefore, transformation of these minerals as affected by dynamic redox conditions may regulate the mobility and bioavailability of associated metals/metalloids...
January 30, 2018: Chemosphere
Tanabhatsakorn Sukitprapanon, Anchalee Suddhiprakarn, Irb Kheoruenromne, Robert J Gilkes
Drainage of potential acid sulfate soils (PASS) for paddy rice cultivation results in the formation of active acid sulfate soils (AASS) and subsequently post-active acid sulfate soils (PAASS). The drainage of PASS causes severe environmental problems including acidification and metal contamination of soil and water resources. This study examined the vertical distribution and partitioning of Al, As, Co, Cu, Fe, Mn, Ni, Pb, and Zn in six tropical acid sulfate soils representing AASS and PAASS under long-term paddy rice cultivation (>145 years)...
February 2, 2018: Chemosphere
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