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Proof of concept trials

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https://www.readbyqxmd.com/read/28738639/a-colorimetric-indicator-displacement-assay-for-cysteine-sensing-based-on-a-molecule-exchange-mechanism
#1
Zhonghua Xue, Xiaoxia Fu, Honghong Rao, Mohammed Hassan Ibrahim, Lulu Xiong, Xiuhui Liu, Xiaoquan Lu
In this study, we developed an ingenious yet effective strategy for cysteine detection. The colorimetric cysteine assay is established through an indicator displacement process, where Cu(2+) and pyrocatechol violet (PV) was employed as receptor and indicator, respectively. Proof-of-concept trials demonstrated that the stronger binding affinity of Cu(2+) receptor toward cysteine than PV indicator endowed our colorimetric sensor with high selectivity and excellent sensitivity as well as with a lower detection limit (4...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28738565/zwitterionic-hydrophilic-interaction-liquid-chromatography-tandem-mass-spectrometry-with-hybridspe-precipitation-for-the-determination-of-intact-cisplatin-in-human-plasma
#2
Feifan Xie, Pieter Colin, Jan Van Bocxlaer
Cisplatin is a first-line chemotherapeutic for the treatment of a wide variety of cancers since its discovery in the 1960s. Although various techniques have been reported for the measurement of total platinum in biological matrices, such as inductively coupled plasma-mass spectrometry and derivatization procedures, a specific, sensitive and robust assay for the quantification of intact cisplatin is still lacking. Therefore, we present a rapid, selective, sensitive, and reliable UHPLC-MS/MS based method for the determination of intact cisplatin in human plasma in support of a Phase II clinical trial...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28735873/the-therapeutic-potential-of-purinergic-signalling
#3
REVIEW
Geoffrey Burnstock
This review is focused on the pathophysiology and therapeutic potential of purinergic signalling. A wide range of diseases are considered, including those of the central nervous system, skin, kidney, musculoskeletal, liver gut, lower urinary tract, cardiovascular, airways and reproductive systems, the special senses, infection, diabetes and obesity. Several purinergic drugs are already on the market, including P2Y12 receptor antagonists for stroke and thrombosis, P2Y2 receptor agonists for dry eye, A1 receptor agonists for supraventricular tachycardia...
July 20, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28732491/job-retention-vocational-rehabilitation-for-employed-people-with-inflammatory-arthritis-work-ia-a-feasibility-randomized-controlled-trial
#4
Alison Hammond, Rachel O'Brien, Sarah Woodbridge, Lucy Bradshaw, Yeliz Prior, Kate Radford, June Culley, Diane Whitham, Ruth Pulikottil-Jacob
BACKGROUND: Inflammatory arthritis leads to work disability, absenteeism and presenteeism (i.e. at-work productivity loss) at high cost to individuals, employers and society. A trial of job retention vocational rehabilitation (VR) in the United States identified this helped people keep working. The effectiveness of this VR in countries with different socioeconomic policies and conditions, and its impact on absenteeism, presenteeism and health, are unknown. This feasibility study tested the acceptability of this VR, modified for the United Kingdom, compared to written advice about managing work problems...
July 21, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28732306/photostability-testing-using-online-reactor-hplc-hyphenation-and-mass-spectrometric-compound-identification-illustrated-by-ketoprofen-as-model-compound
#5
Jaber Assaf, Diego Zulkiewicz Gomes, Bernhard Wuest, Maria Kristina Parr
Investigations on the photochemical stability of pharmaceutical substances are mandatory in drug development and licensing as photo-induced degradation of an active pharmaceutical ingredient (API) may not only lead to decreased API concentrations but also to toxic or reactive products. Thus, the US Food and Drug Administration (FDA) and the International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use (ICH) issued Guidance for Industry Q1B "Photostability Testing of New Drug Substances and Products" for testing of pure but also packed drugs...
July 8, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28727712/intervertebral-foramen-injection-of-ozone-relieves-mechanical-allodynia-and-enhances-analgesic-effect-of-gabapentin-in-animal-model-of-neuropathic-pain
#6
Wen-Jun Luo, Fan Yang, Fei Yang, Wei Sun, Wei Zheng, Xiao-Liang Wang, Fang-Fang Wu, Jiang-Lin Wang, Jia-Shuang Wang, Su-Min Guan, Jun Chen
BACKGROUND: In a 5-year follow-up study in a hospital in southern China, it was shown that intervertebral foramen (IVF) injection of ozone at the involved segmental levels could significantly alleviate paroxysmal spontaneous pain and mechanical allodynia in patients with chronic, intractable postherpetic neuralgia (PHN) and improve the quality of life. However, so far no proof-of-concept studies in animals have been available. OBJECTIVE: This study was designed to investigate whether IVF ozone has an analgesic effect on animal models of neuropathic and inflammatory pain...
July 2017: Pain Physician
https://www.readbyqxmd.com/read/28725381/extending-bioacoustic-monitoring-of-birds-aloft-through-flight-call-localization-with-a-three-dimensional-microphone-array
#7
Phillip M Stepanian, Kyle G Horton, David C Hille, Charlotte E Wainwright, Phillip B Chilson, Jeffrey F Kelly
Bioacoustic localization of bird vocalizations provides unattended observations of the location of calling individuals in many field applications. While this technique has been successful in monitoring terrestrial distributions of calling birds, no published study has applied these methods to migrating birds in flight. The value of nocturnal flight call recordings can increase with the addition of three-dimensional position retrievals, which can be achieved with adjustments to existing localization techniques...
October 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/28725373/high-resolution-photo-mosaic-time-series-imagery-for-monitoring-human-use-of-an-artificial-reef
#8
Georgina Wood, Tim P Lynch, Carlie Devine, Krystle Keller, Will Figueira
Successful marine management relies on understanding patterns of human use. However, obtaining data can be difficult and expensive given the widespread and variable nature of activities conducted. Remote camera systems are increasingly used to overcome cost limitations of conventional labour-intensive methods. Still, most systems face trade-offs between the spatial extent and resolution over which data are obtained, limiting their application. We trialed a novel methodology, CSIRO Ruggedized Autonomous Gigapixel System (CRAGS), for time series of high-resolution photo-mosaic (HRPM) imagery to estimate fine-scale metrics of human activity at an artificial reef located 1...
October 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/28723914/safety-and-pharmacodynamics-of-dalazatide-a-kv1-3-channel-inhibitor-in-the-treatment-of-plaque-psoriasis-a-randomized-phase-1b-trial
#9
Eric J Tarcha, Chelsea M Olsen, Peter Probst, David Peckham, Ernesto J Muñoz-Elías, James G Kruger, Shawn P Iadonato
BACKGROUND: Dalazatide is a specific inhibitor of the Kv1.3 potassium channel. The expression and function of Kv1.3 channels are required for the function of chronically activated memory T cells, which have been shown to be key mediators of autoimmune diseases, including psoriasis. OBJECTIVE: The primary objective was to evaluate the safety of repeat doses of dalazatide in adult patients with mild-to-moderate plaque psoriasis. Secondary objectives were to evaluate clinical proof of concept and the effects of dalazatide on mediators of inflammation in the blood and on chronically activated memory T cell populations...
2017: PloS One
https://www.readbyqxmd.com/read/28714735/effect-of-yoga-breathing-pranayama-on-exercise-tolerance-in-patients-with-chronic-obstructive-pulmonary-disease-a-randomized-controlled-trial
#10
David A Kaminsky, Kalpalatha K Guntupalli, Joan Lippmann, Stephanie M Burns, Melissa A Brock, Joan Skelly, Michael DeSarno, Heidi Pecott-Grimm, Ali Mohsin, Catherine LaRock-McMahon, Penney Warren, Martha C Whitney, Nicola A Hanania
OBJECTIVE: Pulmonary rehabilitation improves exercise tolerance in patients with chronic obstructive pulmonary disease (COPD). However, many patients do not have access to pulmonary rehabilitation programs. We hypothesized that an alternative to pulmonary rehabilitation to improve exercise tolerance is the practice of pranayama, or yoga breathing, which could be done independently at home. We also sought to determine whether yoga nonprofessionals could adequately teach pranayama to patients...
July 17, 2017: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
https://www.readbyqxmd.com/read/28709498/targeting-fyn-kinase-in-alzheimer-s-disease
#11
REVIEW
Haakon B Nygaard
The past decade has brought tremendous progress in unraveling the pathophysiology of Alzheimer's disease (AD). While increasingly sophisticated immunotherapy targeting soluble and aggregated brain amyloid-beta (Aβ) continues to dominate clinical research in AD, a deeper understanding of Aβ physiology has led to the recognition of distinct neuronal signaling pathways linking Aβ to synaptotoxicity and neurodegeneration and to new targets for therapeutic intervention. Identifying specific signaling pathways involving Aβ has allowed for the development of more precise therapeutic interventions targeting the most relevant molecular mechanisms leading to AD...
June 13, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28706485/the-combination-of-rituximab-and-bendamustine-as-first-line-treatment-is-highly-effective-in-the-eradicating-minimal-residual-disease-in-follicular-lymphoma-an-italian-retrospective-study
#12
Sara Galimberti, Elena Ciabatti, Giacomo Ercolano, Susanna Grassi, Francesca Guerrini, Nadia Cecconi, Martina Rousseau, Giulia Cervetti, Francesco Mazziotta, Lorenzo Iovino, Franca Falzetti, Flavio Falcinelli, Alberto Bosi, Luigi Rigacci, Sofia Kovalchuk, Daniele Vallisa, Lucia Macchia, Eugenio Ciancia, Mario Petrini
R-Bendamustine is an effective treatment for follicular lymphoma (FL). Previous large trials demonstrated the prognostic role of the molecular minimal residual disease (MRD) during the most frequently adopted chemotherapeutic regimens, but there are not yet conclusive data about the effect of combination of rituximab (R) and bendamustine in terms of MRD clearance. Thus, the aim of this retrospective study was to assess if and in what extent the combination of rituximab and bendamustine would exert a significant reduction of the molecular disease in 48 previously untreated FL patients...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28700587/community-and-health-system-intervention-to-reduce-disrespect-and-abuse-during-childbirth-in-tanga-region-tanzania-a-comparative-before-and-after-study
#13
Stephanie A Kujawski, Lynn P Freedman, Kate Ramsey, Godfrey Mbaruku, Selemani Mbuyita, Wema Moyo, Margaret E Kruk
BACKGROUND: Abusive treatment of women during childbirth has been documented in low-resource countries and is a deterrent to facility utilization for delivery. Evidence for interventions to address women's poor experience is scant. We assessed a participatory community and health system intervention to reduce the prevalence of disrespect and abuse during childbirth in Tanzania. METHODS AND FINDINGS: We used a comparative before-and-after evaluation design to test the combined intervention to reduce disrespect and abuse...
July 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28696340/brain-actuated-gait-trainer-with-visual-and-proprioceptive-feedback
#14
Dong Liu, Weihai Chen, Kyuhwa Lee, Ricardo Chavarriaga, Mohamed Bouri, Zhongcai Pei, Jose Del R Millan
OBJECTIVE: Brain-machine interfaces (BMIs) have been proposed in closed-loop applications for neuromodulation and neurorehabilitation. This study describes the impact of different feedback modalities on the performance of an EEG-based BMI that decodes motor imagery (MI) of leg flexion and extension. APPROACH: We executed experiments in a lower-limb gait trainer (the legoPress) where nine able-bodied subjects participated in three consecutive sessions based on a crossover design...
July 11, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28693439/combatting-pain-after-orthopedic-trauma-surgery-perioperative-oral-extended-release-tapentadol-vs-extended-release-oxycodone-naloxone
#15
Gertrud Haeseler, Dirk Schaefers, Natalie Prison, Jörg Ahrens, Xiaofei Liu, Annika Karch
BACKGROUND: High post-operative pain scores after "minor" orthopedic/trauma surgery are in part attributed to inadequate prescription of opioid analgesics. Novel concepts aiming to achieve sufficient analgesia while minimizing opioid-related side effects by avoiding fluctuating plasma levels are based on perioperative oral administration of extended-release opioids beginning with the first dose pre-operatively. This is the first study to evaluate analgesic efficacy and side effect rates of extended-release tapentadol compared to oxycodone/naloxone following orthopedic/trauma surgery...
July 11, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28687348/design-and-approach-of-the-living-organ-video-educated-donors-loved-program-to-promote-living-kidney-donation-in-african-americans
#16
John C Sieverdes, Matthew Price, Kenneth J Ruggiero, Prabhakar K Baliga, Kenneth D Chavin, Brenda Brunner-Jackson, Sachin Patel, Frank A Treiber
PURPOSE: To describe the rationale, methodology, design, and interventional approach of a mobile health education program designed for African Americans with end stage renal disease (ESRD) to increase knowledge and self-efficacy to approach others about their need for a living donor kidney transplant (LDKT). METHODS: The Living Organ Video Educated Donors (LOVED) program is a theory-guided iterative designed, mixed methods study incorporating three phases: 1) a formative evaluation using focus groups to develop program content and approach; 2) a 2-month proof of concept trial (n=27) to primarily investigate acceptability, tolerability and investigate increases of LDKT knowledge and self-efficacy; and 3) a 6-month, 2-arm, 60-person feasibility randomized control trial (RCT) to primarily investigate increases in LDKT knowledge and self-efficacy, and secondarily, to increases the number of living donor inquiries, medical evaluations, and LDKTs...
July 4, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/28681996/apelin-administration-improves-insulin-sensitivity-in-overweight-men-during-an-hyperinsulinemic-euglycemic-clamp
#17
Pierre Gourdy, Laurent Cazals, Claire Thalamas, Agnès Sommet, Fabienne Calvas, Monique Galitzky, Claire Vinel, Cédric Dray, Hélène Hanaire, Isabelle Castan-Laurell, Philippe Valet
AIMS: Apelin is a recently identified adipokine known to improve glucose tolerance and insulin sensitivity in murine models. This study was dedicated to the proof of concept that apelin administration also enhances insulin sensitivity in humans. MATERIALS AND METHODS: Healthy overweight men were enrolled in this randomized, double-blind, placebo-controlled, cross-over study that successively considered the efficacy and the tolerance of two doses of (pyr1)-Apelin-13...
July 6, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28675563/neuroinflammatory-targets-and-treatments-for-epilepsy-validated-in-experimental-models
#18
Eleonora Aronica, Sebastian Bauer, Yuri Bozzi, Matteo Caleo, Raymond Dingledine, Jan A Gorter, David C Henshall, Daniela Kaufer, Sookyong Koh, Wolfgang Löscher, Jean-Pierre Louboutin, Michele Mishto, Braxton A Norwood, Eleonora Palma, Michael O Poulter, Gaetano Terrone, Annamaria Vezzani, Rafal M Kaminski
A large body of evidence that has accumulated over the past decade strongly supports the role of inflammation in the pathophysiology of human epilepsy. Specific inflammatory molecules and pathways have been identified that influence various pathologic outcomes in different experimental models of epilepsy. Most importantly, the same inflammatory pathways have also been found in surgically resected brain tissue from patients with treatment-resistant epilepsy. New antiseizure therapies may be derived from these novel potential targets...
July 2017: Epilepsia
https://www.readbyqxmd.com/read/28673279/pharmacogenetic-evaluation-to-assess-breakthrough-psychosis-with-aripiprazole-long-acting-injection-a-case-report
#19
Seenae Eum, Mark E Schneiderhan, Jacob T Brown, Adam M Lee, Jeffrey R Bishop
BACKGROUND: Given the complex nature of symptom presentation and medication regimens, psychiatric clinics may benefit from additional tools to personalize treatments. Utilizing pharmacogenetic information may be helpful in assessing unique responses to therapy. We report herein a case of wearing-off phenomena during treatment with aripiprazole long-acting injectable (LAI) and a proof of concept strategy of how pharmacogenetic information may be used to assess possible genetic factors and also hypothesize potential mechanisms for further study...
July 3, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28670143/bone-marrow-mesenchymal-stem-cell-repair-of-cyclophosphamide-induced-ovarian-insufficiency-in-a-mouse-model
#20
Ahmed Badawy, Mohamed A Sobh, Mohamed Ahdy, Mohamed Sayed Abdelhafez
OBJECTIVE: Attempting in vivo healing of cyclophosphamide-induced ovarian insufficiency in a mouse model using bone marrow mesenchymal stem cells (BMMSCs). METHODS: Female BALB/c white mice were used to prepare a model for premature ovarian failure by single intraperitoneal injection of cyclophosphamide (80 mg/kg). Ten mice were injected with BMMSCs and then sacrificed after 21 days for morphometric evaluation of the ovaries. Hormonal profile was evaluated while mice were being sacrificed...
2017: International Journal of Women's Health
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