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https://www.readbyqxmd.com/read/29793194/simultaneous-determination-of-18-psychoactive-agents-and-6-metabolites-in-plasma-using-lc-ms-ms-and-application-to-actual-plasma-samples-from-conscription-candidates
#1
Dongeun Park, Hyeyoung Choi, Moonhee Jang, Hyejin Chang, Sanghee Woo, Wonkyung Yang
In Korea, an increasing number of people attempt to evade military conscription by posing as mental health patients. To verify the authenticity of mental illness, there is a need to detect wide range of psychoactive agents in biological specimens of conscription candidates. In this study, we developed and validated a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for simultaneous determination of 18 psychoactive agents and 6 metabolites in human plasma. The method was characterized by the use of a simple, fast and cheap protein precipitation as sample preparation, a rapid run time (11min) and a low volume of plasma sample (200μL)...
April 22, 2018: Forensic Science International
https://www.readbyqxmd.com/read/29793186/excess-sludge-disruption-and-pollutant-removal-from-tannery-effluent-by-upgraded-activated-sludge-system
#2
Vijay Sodhi, Ajay Bansal, Mithilesh Kumar Jha
This study proposed a maintenance metabolism based upgraded activated sludge as MANODOX system that restricts excess biosludge generation from high strength real tannery effluent. The MANODOX experimental demonstration has been done using a sequenced operational arrangement of a MBBR, anaerobic digester, and oxidation ditch connected to CAS reactor, discussed in detail manner. Experimental trends revealed a prominently lower sludge yield upto 0.271 gVSS/gCOD (72% overall sludge reduction) that corresponds to parallel run CAS (0...
April 30, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29793108/manganese-contamination-affects-the-motor-performance-of-wild-northern-quolls-dasyurus-hallucatus
#3
Ami Fadhillah Amir Abdul Nasir, Skye F Cameron, Amanda C Niehaus, Christofer J Clemente, Frank A von Hippel, Robbie S Wilson
Neuromotor deficits are an important sign of manganese (Mn) toxicity in humans and laboratory animals. However, the impacts of Mn exposure on the motor function of wild animals remains largely unknown. Here, we assessed the impact of chronic exposure to Mn from active mining operations on Groote Eylandt, Australia on the motor function of the semi-arboreal northern quoll (Dasyurus hallucatus), an endangered species. The three motor tests conducted-maximum sprint speed on a straight run, manoeuvrability around a corner, and motor control on a balance beam-showed that elevated Mn body burden did not diminish performance of these traits...
May 21, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29792921/characterization-of-solution-stress-degradation-products-of-aliskiren-and-prediction-of-their-physicochemical-and-admet-properties
#4
Bhoopendra Singh Kushwah, Jugal Gupta, Dilip Kumar Singh, Moolchand Kurmi, Archana Sahu, Saranjit Singh
Forced degradation studies on aliskiren were carried out according to ICH and WHO guidelines. Six degradation products were formed in total in the solution state. Their separation among themselves and from the drug was successfully achieved on a C-18 column utilizing acetonitrile and phosphate buffer (pH 3.0) in the mobile phase, which was run in a gradient mode. To characterize them, a complete mass fragmentation pathway of the drug was first established with the help of MS/TOF and MSn data. This was followed by LC-MS/TOF studies on the degradation products...
May 21, 2018: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29792821/exhaustive-exercise-induced-oxidative-stress-alteration-of-erythrocyte-oxygen-release-capacity
#5
Yanlian Xiong, Yanlei Xiong, Yueming Wang, Yajin Zhao, Yaojin Li, Yang Ren, Ruofeng Wang, Mingzi Zhao, Yitong Hao, Haibei Liu, Xiang Wang
The aim of the present study is to explore the effect of exhaustive running exercise (ERE) in the oxygen release capacity of rat erythrocytes. Rats were divided into sedentary control (C), moderate running exercise (MRE) and exhaustive running exercise groups. The thermodynamics and kinetics properties of the erythrocyte oxygen release process of different groups were tested. We also determined the degree of band-3 oxidative and phosphorylation, anion transport activity and carbonic anhydrase isoform II(CAII) activity...
May 24, 2018: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/29792762/genetic-profiling-in-acute-myeloid-leukemia-a-path-to-predicting-treatment-outcome
#6
Giuseppe Visani, Federica Loscocco, Alessandro Isidori, Pier Paolo Piccaluga
Despite substantial progresses in acute myeloid leukemia (AML) diagnosis and treatment, at least half of patient will eventually die for the disease. In the last decades, the use of genetic and genomic approaches allowed the identification of patients with higher risk of recurrence after and/or resistance to CHT. However, though many novel drugs have been proposed and tested, only little clinical improvements have been made concerning the treatment of the so called 'high risk' patients. Areas covered: In this article, the authors, based on their own experience and the most updated literature, review the basic knowledge of AML prognostication and treatment prediction developed throughout genetic and genomic profiling, and focus on the use of gene expression profiling as a promising predictive tool...
May 24, 2018: Expert Review of Hematology
https://www.readbyqxmd.com/read/29792242/testing-a-stepped-care-model-for-binge-eating-disorder-a-two-step-randomized-controlled-trial
#7
Giorgio A Tasca, Diana Koszycki, Agostino Brugnera, Livia Chyurlia, Nicole Hammond, Kylie Francis, Kerri Ritchie, Iryna Ivanova, Genevieve Proulx, Brian Wilson, Julie Beaulac, Hany Bissada, Erin Beasley, Nancy Mcquaid, Renee Grenon, Benjamin Fortin-Langelier, Angelo Compare, Louise Balfour
BACKGROUND: A stepped care approach involves patients first receiving low-intensity treatment followed by higher intensity treatment. This two-step randomized controlled trial investigated the efficacy of a sequential stepped care approach for the psychological treatment of binge-eating disorder (BED). METHODS: In the first step, all participants with BED (n = 135) received unguided self-help (USH) based on a cognitive-behavioral therapy model. In the second step, participants who remained in the trial were randomized either to 16 weeks of group psychodynamic-interpersonal psychotherapy (GPIP) (n = 39) or to a no-treatment control condition (n = 46)...
May 24, 2018: Psychological Medicine
https://www.readbyqxmd.com/read/29792234/long-term-outcomes-of-acute-treatment-with-cognitive-therapy-v-interpersonal-psychotherapy-for-adult-depression-follow-up-of-a-randomized-controlled-trial
#8
Lotte H J M Lemmens, Suzanne C van Bronswijk, Frenk Peeters, Arnoud Arntz, Steven D Hollon, Marcus J H Huibers
BACKGROUND: Although equally efficacious in the acute phase, it is not known how cognitive therapy (CT) and interpersonal psychotherapy (IPT) for major depressive disorder (MDD) compare in the long run. This study examined the long-term outcomes of CT v. IPT for MDD. METHODS: One hundred thirty-four adult (18-65) depressed outpatients who were treated with CT (n = 69) or IPT (n = 65) in a large open-label randomized controlled trial (parallel group design; computer-generated block randomization) were monitored across a 17-month follow-up phase...
May 24, 2018: Psychological Medicine
https://www.readbyqxmd.com/read/29792160/nextsv-a-meta-caller-for-structural-variants-from-low-coverage-long-read-sequencing-data
#9
Li Fang, Jiang Hu, Depeng Wang, Kai Wang
BACKGROUND: Structural variants (SVs) in human genomes are implicated in a variety of human diseases. Long-read sequencing delivers much longer read lengths than short-read sequencing and may greatly improve SV detection. However, due to the relatively high cost of long-read sequencing, it is unclear what coverage is needed and how to optimally use the aligners and SV callers. RESULTS: In this study, we developed NextSV, a meta-caller to perform SV calling from low coverage long-read sequencing data...
May 23, 2018: BMC Bioinformatics
https://www.readbyqxmd.com/read/29792108/does-maximalist-footwear-lower-impact-loading-during-level-ground-and-downhill-running
#10
Zoe Y S Chan, Ivan P H Au, Fannie O Y Lau, Eric C K Ching, Janet H Zhang, Roy T H Cheung
A new model of running shoes which features an extreme cushioning and an oversized midsole, known as the maximalist (MAX) was launched. This design claims to provide excellent shock absorption, particularly during downhill running. This study sought to assess the effects of MAX on the external impact loading, footstrike pattern, and stride length during level ground and downhill running on an instrumented treadmill. Twenty-seven distance runners completed four 5-minute running trials in the two footwear conditions (MAX and traditional running shoes (TRS)) on a level surface (0%) and downhill (10%-declination)...
May 24, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29792050/risk-of-psychosis-in-recurrent-episodes-of-psychotic-and-nonpsychotic-major-depressive-disorder-a-systematic-review-and-meta-analysis
#11
J Craig Nelson, David Bickford, Kevin Delucchi, Jess G Fiedorowicz, William H Coryell
OBJECTIVE: The authors conducted a systematic review and meta-analysis to determine whether the risk of psychosis is higher in past or future episodes in patients with major depression with psychotic features than in patients with nonpsychotic depression. METHOD: PubMed, Embase, and PsycINFO were searched, and studies were selected that 1) identified patients with unipolar major depression, 2) made diagnoses of psychosis based on the presence of delusions or hallucinations, 3) characterized past or subsequent episodes as psychotic or nonpsychotic, and 4) were published in English...
May 24, 2018: American Journal of Psychiatry
https://www.readbyqxmd.com/read/29792048/annals-express-a-novel-high-throughput-assay-for-the-measurement-of-salivary-progesterone-by-liquid-chromatography-tandem-mass-spectrometry
#12
Lina Schiffer, Joanne Elaine Adaway, Elizabeth S Baranowski, Wiebke Arlt, Brian G Keevil
BACKGROUND: Liquid chromatography tandem mass spectrometry (LC-MS/MS) enables specific and sensitive quantification of steroids with a high-throughput. Saliva sampling is advantageous for multi-sample profiling over longer periods of time as it is non-invasive, cheap, can be carried out at home and does not require the attendance of clinical personnel. We developed a rapid LC-MS/MS for the measurement of salivary progesterone, frequently assessed as ovulation marker in patients desiring fertility...
January 1, 2018: Annals of Clinical Biochemistry
https://www.readbyqxmd.com/read/29791977/no-association-between-rate-of-torque-development-and-onset-of-muscle-activity-with-increased-risk-of-hamstring-injury-in-elite-football
#13
Nicol van Dyk, Roald Bahr, Angus F Burnett, Evert Verhagen, Damien von Tiggelen, Erik Witvrouw
INTRODUCTION: Hamstring injuries remain a significant burden in sports that involve high speed running. In elite male football, hamstring injury has repeatedly been identified as the most common noncontact injury, representing 12% of all injuries. As the incidence remains high, investigations are aimed at better understanding how to improve prevention efforts. Intrinsic risk factors such as strength have been investigated extensively in a cohort of professional football players; however, other intrinsic measures of neuromuscular function have not been studied in this cohort...
May 23, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29791970/effect-of-high-intensity-resistance-circuit-based-training-in-hypoxia-on-aerobic-performance-and-repeat-sprint-ability
#14
Domingo J Ramos-Campo, Ismael Martínez-Guardado, Guillermo Olcina, Cristian Marín-Pagán, Francisco J Martínez-Noguera, Jorge Carlos-Vivas, Pedro E Alcaraz, Jacobo A Rubio-Arias
Recent acute studies have shown that high-intensity resistance circuit-based (HRC) training in hypoxia increases metabolic stress. However, no intervention studies have yet proven their effectiveness. This study aimed to analyse the effect of 8 weeks of HRC in hypoxia on aerobic performance, resting energy expenditure (REE), repeat sprint ability (RSA) and haematological variables. Twenty-eight subjects were assigned to hypoxia (FiO2 =15%; HRChyp : n=15; age: 24.6±6.8 years; height: 177.4±5.9 cm; weight: 74...
May 23, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29791924/return-to-sport-after-acl-surgery-a-comparison-between-two-different-reconstructive-techniques
#15
Matteo Baldassarri, Luca Perazzo, Diego Ghinelli, Marco Ricciarelli, Federico Pilla, Roberto Buda
The anterior cruciate ligament reconstruction (ACLR) has become a very common surgical procedure. One of the main success indicators of the surgical procedure is the return to preinjury sporting level. In recent years, reconstructive techniques have been geared toward less morbidity and optimized ligaments process to speed up the recovery of sports activity. This study compares clinical and imaging data, to evaluate the timing of return to sport, of two populations undergoing ACLR using two different techniques: ACLR with hamstring maintaining tibial insertion (MHG) and an all-inside technique with complete hamstring detachment (DHG)...
May 23, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29791866/17-%C3%AE-estradiol-exacerbates-methamphetamine-induced-anxiety-like-behavior-in-female-mice
#16
A S Rauhut, M A Curran-Rauhut
The present experiment investigated the effect of 17 β-estradiol (E2 ) on anxiety-like behavior following methamphetamine administration in female, Swiss-Webster mice. Mice underwent bilateral ovariectomy (OVX) followed by a subcutaneous implantation of a Silastic capsule containing either sesame oil (OVX + Oil) or E2 (36 μg/ml; OVX + E2 ). One week later, mice were placed in an open-field chamber for an 8-hour session. During the first 3 hours of the session, mice were permitted to run in the absence of any drug (baseline)...
May 20, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/29791700/closing-the-gap-novel-abdominal-wound-closure-techniques
#17
James Dana Kondrup, Alaina M Qayyum
Traditionally, surgical procedures within the realm of both general and gynecological surgery employ the use of staples and interrupted sutures that run continuously with knot tying or subcuticular sutures to ensure closure of large wound incisions, subcuticular incisions, and fascial repair. However, these methods may not always be cosmetically favorable and, thus, result in an unpleasant outcome for the patient, adding to their surgery-related stress. It is, therefore, imperative that surgeons and gynecologists are aware of alternative methods of wound closure that are not only cosmetically favorable, but also ensure rapid wound recovery and infection control...
June 1, 2018: Surgical Technology International
https://www.readbyqxmd.com/read/29791649/bouts-of-exercise-elicit-discordant-testosterone-cortisol-ratios-in-runners-and-non-runners
#18
Thiago Paes de Barros De Luccia, José Eduardo Soubhia Natali, Alexandre Moreira, José Guilherme Chaui-Berlinck, José Eduardo Pereira Wilken Bicudo
OBJECTIVE: The testosterone:cortisol ratio (T:C) is suggested to be used in order to examine whether physical exercise generates either a "catabolic environment" or an "anabolic environment". The present study aims to evaluate the acute time-course profile of cortisol and testosterone due to an episode of physical exercise. A biphasic profile in the T:C ratio response was hypothesized. MATERIALS AND METHODS: Morning sessions of treadmill running at two different intensities (Heart Rate at 65% and 80% of the maximum cardiac reserve) were performed by 6 male non-runners (NR) and 12 trained male runners (subdivided into trained runners T1 and T2)...
May 17, 2018: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29791236/the-anthropocene-generalized-evolution-of-exo-civilizations-and-their-planetary-feedback
#19
A Frank, Jonathan Carroll-Nellenback, M Alberti, A Kleidon
We present a framework for studying generic behaviors possible in the interaction between a resource-harvesting technological civilization (an exo-civilization) and the planetary environment in which it evolves. Using methods from dynamical systems theory, we introduce and analyze a suite of simple equations modeling a population which consumes resources for the purpose of running a technological civilization and the feedback those resources drive on the state of the host planet. The feedbacks can drive the planet away from the initial state the civilization originated in and into domains that are detrimental to its sustainability...
May 2018: Astrobiology
https://www.readbyqxmd.com/read/29791183/a-2-year-prospective-cohort-study-of-overuse-running-injuries-the-runners-and-injury-longitudinal-study-trails
#20
Stephen P Messier, David F Martin, Shannon L Mihalko, Edward Ip, Paul DeVita, D Wayne Cannon, Monica Love, Danielle Beringer, Santiago Saldana, Rebecca E Fellin, Joseph F Seay
BACKGROUND: The National Center for Injury Prevention and Control, noting flaws in previous running injury research, called for more rigorous prospective designs and comprehensive analyses to define the origin of running injuries. PURPOSE: To determine the risk factors that differentiate recreational runners who remain uninjured from those diagnosed with an overuse running injury during a 2-year observational period. STUDY DESIGN: Cohort study; Level of evidence, 2...
May 1, 2018: American Journal of Sports Medicine
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