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https://www.readbyqxmd.com/read/28806701/application-of-different-spectrophotometric-methods-for-simultaneous-determination-of-elbasvir-and-grazoprevir-in-pharmaceutical-preparation
#1
Khalid A M Attia, Nasr M El-Abasawi, Ahmed El-Olemy, Ahmed H Abdelazim
The first three UV spectrophotometric methods have been developed of simultaneous determination of two new FDA approved drugs namely; elbasvir and grazoprevir in their combined pharmaceutical dosage form. These methods include simultaneous equation, partial least squares with and without variable selection procedure (genetic algorithm). For simultaneous equation method, the absorbance values at 369 (λmax of elbasvir) and 253nm (λmax of grazoprevir) have been selected for the formation of two simultaneous equations required for the mathematical processing and quantitative analysis of the studied drugs...
August 10, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28806623/retroperitoneal-paraganglioma-is-pre-operative-embolization-useful
#2
Natalia Apentchenko Eriutina, Camilo J Castellón Pavón, Carlos García Vásquez, Irene Gonzalo Montesinos, Santos Jiménez de Los Galanes, Pedro A Pacheco Martínez, Juan Gómez Patiño
INTRODUCTION: Paragangliomas (PG) are rare tumors derived from chromaffin cells that are located outside the adrenal gland and are capable of producing catecholamines. The treatment is based on a surgical resection, and there is controversy regarding the usefulness of previously carrying out an embolization and what is the most adequate surgical approach. CLINICAL CASE: We will present a 17-year-old woman with a retroperitoneal tumour in contact with the aorta and the inferior vena cava, treated with embolization prior to the surgical resection via laparotomy...
August 5, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28806426/comparative-evaluation-of-the-effect-of-laser-etching-on-the-shear-bond-strength-of-crowns-cemented-with-two-different-luting-agents-an-in-vitro-study
#3
Ankur Dahiya, Paresh Gandhi, Nadim Z Baba
PURPOSE: The aim of this study was to compare the shear bond strength of crowns cemented on natural teeth after surface treatment of the enamel with an erbium-doped yttrium aluminum garnet (Er:YAG) laser. MATERIALS AND METHODS: Crown preparation was done for 40 full-metal crowns, and wax patterns with loops were cast in a cobalt-chromium alloy. The Er:YAG laser was used for surface treatment of some teeth, and teeth without surface treatment acted as the control...
August 14, 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28806294/the-tissue-engineered-tendon-bone-interface-in-vitro-and-in-vivo-synergistic-effects-of-adipo-derived-stem-cells-platelet-rich-plasma-and-extracellular-matrix-hydrogel
#4
Rory McGoldrick, Arhana Chattopadhyay, Christopher Crowe, Grace Chiou, Kenneth Hui, Simon Farnebo, Christopher Davis, Anais Le Grand, Molly Jacobs, Hung Pham, James Chang
INTRODUCTION: Suboptimal healing of the tendon bone interface (TBI) remains an unsolved problem. One solution is a biocompatible tissue engineered construct that promotes augmented healing. We hypothesisze that 1.) the presence of Platelet Rich Plasma (PRP) and prolonged in vitro incubation produces tissue engineered tendon bone interface scaffolds with greater reseeding of viable Adipo-derived Stem Cells (ADSC) and 2.) when implanted with extracellular matrix hydrogel, constructs will display superior in vivo strength repair and biocompatibility...
August 3, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28806130/existential-risk-and-cost-effective-biosecurity
#5
Piers Millett, Andrew Snyder-Beattie
In the decades to come, advanced bioweapons could threaten human existence. Although the probability of human extinction from bioweapons may be low, the expected value of reducing the risk could still be large, since such risks jeopardize the existence of all future generations. We provide an overview of biotechnological extinction risk, make some rough initial estimates for how severe the risks might be, and compare the cost-effectiveness of reducing these extinction-level risks with existing biosecurity work...
August 14, 2017: Health Security
https://www.readbyqxmd.com/read/28806111/-effectiveness-of-mindfulness-based-cancer-recovery-mbcr-program-among-hungarian-cancer-patients
#6
Magda Rohánszky, Károly Berényi, Dóra Fridrik, Henriette Pusztafalvi
INTRODUCTION AND AIM: Employment of mindfulness-based programs and techniques in the treatment of cancer patients have spread exponentially in the past decade. A large number of studies have proved the effectiveness of the program in the reduction of stress symptoms, depression and anxiety, and the improvement of sleep and mood patterns. The present study was done at Firebird Foundation and examines the effectiveness of the complex, MBCR (mindfulness-based cancer recovery)-based psycho-social intervention in the treatment of cancer patients...
August 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28805930/reliability-of-the-qualitative-behavior-assessment-as-included-in-the-welfare-quality-assessment-protocol-for-growing-pigs
#7
I Czycholl, E Grosse Beilage, C Henning, J Krieter
Positive emotions constitute a very important part of animal welfare. They are, however, also the most challenging elements to be objectively measured. Due to its feasibility, the qualitative behavior assessment (QBA) is included in the Welfare Quality Assessment protocol for growing pigs as the animal-based measurement tool for positive emotions. Reliability testing on the QBA in the form as included in the protocols is, however, rare. Therefore, the present study aimed at the evaluation of the inter- and intraobserver as well as test-retest reliability of the QBA in growing pigs...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28805682/alk-in-non-small-cell-lung-cancer-nsclc-pathobiology-epidemiology-detection-from-tumor-tissue-and-algorithm-diagnosis-in-a-daily-practice
#8
REVIEW
Paul Hofman
Patients with advanced-stage non-small cell lung carcinoma (NSCLC) harboring an ALK rearrangement, detected from a tissue sample, can benefit from targeted ALK inhibitor treatment. Several increasingly effective ALK inhibitors are now available for treatment of patients. However, despite an initial favorable response to treatment, in most cases relapse or progression occurs due to resistance mechanisms mainly caused by mutations in the tyrosine kinase domain of ALK. The detection of an ALK rearrangement is pivotal and can be done using different methods, which have variable sensitivity and specificity depending, in particular, on the quality and quantity of the patient's sample...
August 12, 2017: Cancers
https://www.readbyqxmd.com/read/28805613/a-complicated-urethrovaginal-fistula-following-an-inappropriate-urethral-diverticulum-management
#9
Tsia-Shu Lo, Sukanda Bin Jaili, Rami Ibrahim
OBJECTIVE: Urethral diverticulum is uncommon, therefore appropriate evaluation, preoperative planning and counseling must be done in order to make correct diagnosis and prevent complications. MATERIALS AND METHODS: A case of anterior vaginal wall mass was treated elsewhere by a gynecologist as periurethral cyst abscess; incision and drainage were done but a symptom of pus discharge was observed after 2 weeks. Therefore, exploration, cyst wall excision and primary closure were done though histopathological examination surprisingly confirmed the presence of urethral tissue suggestive of diverticulum...
August 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28805511/special-issue-on-the-pace-trial
#10
David F Marks
We are proud that this issue marks a special contribution by the Journal of Health Psychology to the literature concerning interventions to manage adaptation to chronic health problems. The PACE Trial debate reveals deeply embedded differences between critics and investigators. It reveals an unwillingness of the co-principal investigators of the PACE trial to engage in authentic discussion and debate. It leads one to question the wisdom of such a large investment from the public purse (£5million) on what is a textbook example of a poorly done trial...
August 2017: Journal of Health Psychology
https://www.readbyqxmd.com/read/28805481/a-comparison-of-quality-of-sleep-between-patients-with-chronic-kidney-disease-not-on-hemodialysis-and-end-stage-renal-disease-on-hemodialysis-in-a-developing-country
#11
Salman T Shafi, Tahir Shafi
Few studies have compared quality of sleep between pre-dialysis chronic kidney disease (pre-dialysis CKD) patients and end-stage renal disease patients on dialysis (ESRD) and have found inconsistent results. Objective of this study is to compare quality of sleep between patients with pre-dialysis CKD and ESRD in a developing country. This study was conducted in an out-patient department and hemodialysis unit of a tertiary care facility. Patients included had either pre-dialysis CKD or ESRD. Assessment of quality of sleep was done using Pittsburgh sleep quality index (PSQI)...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28805449/stallion-sperm-cryopreservation-using-various-permeating-agents-interplay-between-concentration-and-cooling-rate
#12
Harriëtte Oldenhof, Judith Bigalk, Christiane Hettel, Lawrence de Oliveira Barros, Bulat Sydykov, Árpád Cs Bajcsy, Harald Sieme, Willem F Wolkers
In this study, modeling and experimental approaches were used to investigate the interplay between cooling rate and protectant concentration for cryopreservation of stallion sperm. Glycerol (GLY), ethylene glycol (EG), dimethylformamide (DMF), propylene glycol (PG), and dimethyl sulfoxide (DMSO) were tested as cryoprotective agents (CPAs), using concentrations up to 1500 mM and cooling rates ranging from 5°C to 55°C min(-1). Modeling of the extent of sperm dehydration during freezing was done using previously determined values of the sperm membrane permeability to water to predict optimal cooling rates for cryopreservation...
August 14, 2017: Biopreservation and Biobanking
https://www.readbyqxmd.com/read/28805378/in-vitro-modulation-of-renin-angiotensin-system-enzymes-by-amaranth-amaranthus-hypochondriacus-protein-derived-peptides-alternative-mechanisms-different-from-ace-inhibition
#13
Alejandra V Quiroga, Paula Aphalo, Agustina Estefanía Nardo, María Cristina Añón
Among the factors affecting the development of cardiovascular diseases, hypertension is one of the most important. Research done on amaranth proteins has demonstrated their hypotensive capacity in vivo and in vitro; nevertheless the mechanism underlying this effect remains unclear. The aim of this study was to analyze in vitro the inhibition of peptides derived from an amaranth hydrolysate (AHH) on other RAS enzymes other than ACE. The chymase and renin activities were studied. AHH was not able to inhibit chymase activity although a dose-response effect was found on renin activity (IC50 0...
August 14, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28805303/controlled-release-of-igf1-enhances-urethral-sphincter-function-and-histological-structure-in-the-treatment-of-female-stress-urinary-incontinence-in-a-rodent-model
#14
Hao Yan, Liren Zhong, Yaodong Jiang, Jian Yang, Junhong Deng, Shicheng Wei, Emmanuel Opara, Anthony Atala, Xiangming Mao, Margot Damaser, Yuanyuan Zhang
OBJECTIVES: Stress urinary incontinence (SUI) diminishes the quality of life of millions, particularly women who have delivered vaginally, which can injure the urethral sphincter. Despite several well-established treatments for SUI, growth factor therapy might provide an alternative to promote urethral sphincter repair. The goal of this study was to determine the effects of controlled release of IGF1 from alginate-poly-L-ornithine-gelatin microbeads (IGF1-A-PLO-G microbeads) on sphincter tissue regeneration in a rat model of SUI...
August 14, 2017: BJU International
https://www.readbyqxmd.com/read/28804897/keeping-in-time-issues-affecting-the-sustainability-of-obstetric-emergency-simulation-training-in-outer-metropolitan-rural-and-remote-centres-in-western-australia
#15
Claire Whitelaw, Katrina Calvert, Mathias Epee
BACKGROUND: Obstetric emergency simulation training is an evidence-based intervention for the reduction of perinatal and maternal morbidity. In Western Australia, obstetric emergency training has been run using the In Time course since 2006. AIMS: The study aimed to determine if the provision of In Time train the trainer courses to outer metro, rural and remote units in Western Australia had led to sustained ongoing training in those units. Ten years following the introduction of the course, we performed a survey to examine which units are continuing to run In Time, what are the perceived benefits in units still utilising In Time, and what were the barriers to training in units that had discontinued...
August 14, 2017: Australian & New Zealand Journal of Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/28804686/a-comparative-study-of-tissue-expansion-and-free-parascapular-flaps-in-extensive-facial-burn-scar-reconstruction
#16
G S Kalra, Mitesh Bedi, Vipin Kumar Barala
BACKGROUND: Large post burn scars are a very difficult problem to treat. Available methods include skin grafts and tissue expansion. The reconstructive method used should be tailored according to individual patient rather than following a textbook approach in each. PATIENTS AND METHODS: A retrospective analysis was done of cases with extensive facial burn scars in whom secondary reconstruction was done with either free parascapular flap cover or tissue expansion and flap advancement following facial burn scar excision by a single surgeon (GSK) in Department of Burns, Plastic and reconstructive surgery...
2017: International Journal of Burns and Trauma
https://www.readbyqxmd.com/read/28804685/percutaneous-dilatational-tracheostomy-through-paramedian-technique-and-lateral-approach-in-a-patient-with-cervical-esophagostomy-a-case-report
#17
Kapil D Soni, Neha Garg, Richa Aggarwal, Ambuj Ambuj
BACKGROUND: Percutaneous dilatational tracheostomy (PDT) is a common surgical procedure and established as first choice for securing the airway in critically ill patients needing prolonged mechanical ventilation. There are case reports of open tracheostomy through paramedian approach without complications. This case report presents a case of PDT through paramedian approach. CASE REPORT: An 18 year old female, case of firearm injury underwent cervical esophagostomy on the left side of neck approaching midline...
2017: International Journal of Burns and Trauma
https://www.readbyqxmd.com/read/28804677/haloselective-cross-coupling-via-ni-photoredox-dual-catalysis
#18
Kingson Lin, Rebecca J Wiles, Christopher B Kelly, Geraint H M Davies, Gary A Molander
The chemoselective functionalization of polyfunctional aryl linchpins is crucial for rapid diversification. Although well-explored for Csp(2) and Csp nucleophiles, the chemoselective introduction of Csp(3) groups remains notoriously difficult and is virtually undocumented using Ni catalysts. To fill this methodological gap, a "haloselective" cross-coupling process of arenes bearing two halogens, I and Br, using ammonium alkylbis(catecholato)silicates, has been developed. Utilizing Ni/photoredox dual catalysis, Csp(3) -Csp(2) bonds can be forged selectively at the iodine-bearing carbon of bromo(iodo)arenes...
August 4, 2017: ACS Catalysis
https://www.readbyqxmd.com/read/28804663/misdiagnosis-of-a-giant-uterine-leiomyosarcoma-clinic-and-image-challenges
#19
Jila Agah, Sedighe Karimzadeh, Fateme Moharrer Ahmadi
A 41-year-old woman (G3P2L2Ab1) was referred to gynecology clinic with chief complaints of abdominal distension and localized abdominal wall pruritus for three months. She was misdiagnosed with gastrointestinal disorder and ultimately had undergone imaging. Ultrasonography and computed tomography (CT) scan disclosed a huge solid-cystic mass originating from the ovary. On clinical examination the patient had no pain or tenderness and no gynecologic complaints. Laboratory tests showed normal tumor markers and hemoglobin at 8 g/dl...
2017: Case Reports in Oncological Medicine
https://www.readbyqxmd.com/read/28804662/fungal-bezoar-a-rare-cause-of-ureteral-obstruction
#20
Nabil Zeineddine, Wissam Mansour, Sandy El Bitar, Marco Campitelli, Neville Mobarakai
A 52-year-old male, with diabetes mellitus and alcoholic liver disease, presented to the Emergency Room for right flank pain of 3 days' duration, associated with dysuria. Physical examination revealed right flank tenderness with fever and hypotension; laboratory findings showed acute kidney injury and large blood and leucocytes in the urine. A CT abdomen and pelvis showed hydronephrosis of the right collecting system of a horseshoe kidney with air and hyperdense debris in the renal pelvis. Patient was treated for multisensitive Proteus mirabilis emphysematous pyelonephritis, and a right nephrostomy tube was inserted...
2017: Case Reports in Infectious Diseases
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