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https://www.readbyqxmd.com/read/29667596/becaf-study-caffeine-and-behaviour-in-nursing-homes-a-study-protocol-and-ebm-training-program
#1
M A Kromhout, M van Eijk, M J C Pieper, V G M Chel, W P Achterberg, M E Numans
No abstract text is available yet for this article.
April 2018: Netherlands Journal of Medicine
https://www.readbyqxmd.com/read/29664059/excessive-daytime-sleepiness-in-parkinson-s-disease-clinical-implications-and-management
#2
REVIEW
Yun Shen, Jun-Ying Huang, Jie Li, Chun-Feng Liu
Objective: Excessive daytime sleepiness (EDS) is one of the most common sleep abnormalities in patients with Parkinson's disease (PD), yet its multifactorial etiology complicates its treatment. This review summarized recent studies on the epidemiology, etiology, clinical implications, associated features, and evaluation of EDS in PD. The efficacy of pharmacologic and non-pharmacologic treatments for EDS in PD was also reviewed. Data Sources: English language articles indexed in PubMed and Cochrane databases and Chinese-language papers indexed in Wanfang and National Knowledge Infrastructure databases that were published between January 1987 and November 2017 were located using the following search terms: "sleepiness", "sleep and Parkinson's disease", and "Parkinson's disease and treatment"...
April 20, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29663538/methylxanthine-drug-monitoring-with-wearable-sweat-sensors
#3
Li-Chia Tai, Wei Gao, Minghan Chao, Mallika Bariya, Quynh P Ngo, Ziba Shahpar, Hnin Y Y Nyein, Hyejin Park, Junfeng Sun, Younsu Jung, Eric Wu, Hossain M Fahad, Der-Hsien Lien, Hiroki Ota, Gyoujin Cho, Ali Javey
Drug monitoring plays crucial roles in doping control and precision medicine. It helps physicians tailor drug dosage for optimal benefits, track patients' compliance to prescriptions, and understand the complex pharmacokinetics of drugs. Conventional drug tests rely on invasive blood draws. While urine and sweat are attractive alternative biofluids, the state-of-the-art methods require separate sample collection and processing steps and fail to provide real-time information. Here, a wearable platform equipped with an electrochemical differential pulse voltammetry sensing module for drug monitoring is presented...
April 16, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29660819/increase-of-ctgf-mrna-expression-by-respiratory-syncytial-virus-infection-is-abrogated-by-caffeine-in-lung-epithelial-cells
#4
Steffen Kunzmann, Christine Krempl, Silvia Seidenspinner, Kirsten Glaser, Christian P Speer, Markus Fehrholz
Respiratory syncytial virus (RSV) is a leading cause of severe lower respiratory tract infection in early childhood. Underlying pathomechanisms of elevated pulmonary morbidity in later infancy are largely unknown. We found that RSV-infected H441 cells showed increased mRNA expression of connective tissue growth factor (CTGF), a key factor in airway remodeling. Additional dexamethasone treatment led to further elevated mRNA levels, indicating additive effects. Caffeine treatment prevented RSV-mediated increase of CTGF mRNA...
April 16, 2018: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29660635/caffeine-catalyzed-gels
#5
Angela M DiCiccio, Young-Ah Lucy Lee, Dean L Glettig, Elizabeth S E Walton, Eva L de la Serna, Veronica A Montgomery, Tyler M Grant, Robert Langer, Giovanni Traverso
Covalently cross-linked gels are utilized in a broad range of biomedical applications though their synthesis often compromises easy implementation. Cross-linking reactions commonly utilize catalysts or conditions that can damage biologics and sensitive compounds, producing materials that require extensive post processing to achieve acceptable biocompatibility. As an alternative, we report a batch synthesis platform to produce covalently cross-linked materials appropriate for direct biomedical application enabled by green chemistry and commonly available food grade ingredients...
April 6, 2018: Biomaterials
https://www.readbyqxmd.com/read/29660426/coffee-and-tea-drinking-in-relation-to-risk-of-hip-fracture-in-the-singapore-chinese-health-study
#6
Zhaoli Dai, Aizhen Jin, Avril Zixin Soh, Li-Wei Ang, Jian-Min Yuan, Woon-Puay Koh
Meta-analyses of studies conducted among Western populations suggest that coffee consumption does not affect osteoporotic fracture risk. However, experimental studies have shown that the effect of caffeine on bone health may depend on dosage. We examined the associations between consumption of coffee, tea and caffeine and risk of hip fracture in an Asian cohort. In a population-based prospective cohort of 63,257 Chinese men and women aged 45-74 years in Singapore, a validated semi-quantitative food frequency questionnaire was used to assess habitual consumption of coffee and tea at baseline...
April 13, 2018: Bone
https://www.readbyqxmd.com/read/29659178/a-prospective-randomized-double-blind-two-period-crossover-pharmacokinetic-trial-comparing-green-coffee-bean-extract-a-botanically-sourced-caffeine-with-a-synthetic-usp-control
#7
Kayce Morton, Katelin Knight, Douglas Kalman, Susan Hewlings
Coffee is a primary dietary source of the chlorogenic acids (CGAs) of phenolic compounds. Coffee contains caffeine and other phytonutrients, including CGAs. Caffeine on its own has been well characterized and descried pharmacokinetically in the literature, less so for CGAs. The purpose of this double-blind crossover study was to determine the comparative pharmacokinetics of CGAs with caffeine (natural extract) with synthetic caffeine (US Pharmacopeia [USP] standard). Sixteen healthy male subjects were randomly assigned to take 1 dose of product 1, 60 mg of botanically sourced caffeine from 480 mg of green coffee bean extract, or product 2, 60 mg of synthetic USP caffeine, with 5 days between...
April 16, 2018: Clinical Pharmacology in Drug Development
https://www.readbyqxmd.com/read/29658448/-clinical-features-and-prognosis-of-preterm-infants-with-varying-degrees-of-bronchopulmonary-dysplasia
#8
Wen-Li Li, Fa-Lin Xu, Ming Niu, Meng-Di Liu, Hui-Fang Dong
OBJECTIVE: To study the clinical features and prognosis of preterm infants with varying degrees of bronchopulmonary dysplasia (BPD). METHODS: The clinical data of 144 preterm infants with a gestational age of <32 weeks who were admitted to the neonatal intensive care unit from March 2014 to March 2016 and were diagnosed with BPD were collected. According to the severity of BPD, these preterm infants were divided into mild group with 81 infants and moderate/severe group with 63 infants...
April 2018: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/29655598/individual-differences-in-the-energizing-effects-of-caffeine-on-effort-based-decision-making-tests-in-rats
#9
Noemí SanMiguel, Marta Pardo, Carla Carratalá-Ros, Laura López-Cruz, John D Salamone, Mercè Correa
Motivated behavior is characterized by activation and high work output. Nucleus accumbens (Nacb) modulates behavioral activation and effort-based decision-making. Caffeine is widely consumed because of its energizing properties. This methylxanthine is a non-selective adenosine A1 /A2A receptor antagonist. Adenosine receptors are highly concentrated in Nacb. Adenosine agonists injected into Nacb, shift preference towards low effort alternatives. The present studies characterized effort-related effects of caffeine in a concurrent progressive ratio (PROG)/free reinforcer choice procedure that requires high levels of work output, and generates great variability among different animals...
April 12, 2018: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/29653457/difficulties-in-differentiating-natural-from-synthetic-alkaloids-by-isotope-ratio-monitoring-using-13c-nuclear-magnetic-resonance-spectrometry
#10
Richard J Robins, Katarzyna M Romek, Mathilde Grand, Pierrick Nun, Didier Diomande, Maxime Julien, Gérald S Remaud
Within the food and pharmaceutical industries, there is an increasing legislative requirement for the accurate labeling of the product's origin. A key feature of this is to indicate whether the product is of natural or synthetic origin. With reference to this context, we have investigated three alkaloids commonly exploited for human use: nicotine, atropine, and caffeine. We have measured by 13 C nuclear magnetic resonance spectrometry the position-specific distribution of 13 C at natural abundance within several samples of each of these target molecules...
April 13, 2018: Planta Medica
https://www.readbyqxmd.com/read/29651899/caffeine-does-not-affect-susceptibility-to-cortical-spreading-depolarization-in-mice
#11
Nilufer Yalcin, Shih-Pin Chen, Esther S Yu, Tzu-Ting Liu, Jiin-Cherng Yen, Yahya B Atalay, Tao Qin, Furkan Celik, Arn Mjm van den Maagdenberg, Michael A Moskowitz, Cenk Ayata, Katharina Eikermann-Haerter
Several factors that modulate migraine, a common primary headache disorder, also affect susceptibility to cortical spreading depolarization (CSD). CSD is a wave of neuronal and glial depolarization and thought to underlie the migraine aura and possibly headache. Here, we tested whether caffeine, known to alleviate or trigger headache after acute exposure or chronic use/withdrawal, respectively, modulates CSD. We injected C57BL/6J mice with caffeine once (30, 60, or 120 mg/kg; i.p.) ( acute) or twice per day for one or two weeks ( chronic)...
January 1, 2018: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29643533/-topoisomerase-inhibitor-upregulates-mica-b-expression-in-breast-cancer-cells-through-atm-atr-and-nf-%C3%AE%C2%BAb-pathway
#12
Y Zhu, Y J Shi, Y L Zhao, P Zhu
OBJECTIVE: To investigate the effects of chemotherapeutic agents widely used in clinical practice on major histocompatibility complex class I-related chain A and B (MICA/B) expression in breast cancer cells, and to explore the molecular mechanisms involved. METHODS: We examined MICA/B mRNA and surface protein expressions in breast cancer cells treated with chemotherapeutic agents by real-time RT-PCR and flow cytometry respectively. The blocking effects of ataxia telangiectasia mutated and Rad3-related kinase (ATM/ATR) inhibitor caffeine and nuclear factor κB (NF-κB) inhibitor pynolidine dithiocarbamate (PDTC) on etoposide-upregulated MICA/B mRNA and surface protein expressions were investigated...
April 18, 2018: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/29643081/integration-of-risk-factors-for-parkinson-disease-in-2-large-longitudinal-cohorts
#13
Iris Y Kim, Éilis J O'Reilly, Katherine C Hughes, Xiang Gao, Michael A Schwarzschild, Marian T Hannan, Rebecca A Betensky, Alberto Ascherio
OBJECTIVE: To prospectively examine how selected lifestyle factors and family history of Parkinson disease (PD) combine to determine overall PD risk. METHODS: We derived risk scores among 69,968 women in the Nurses' Health Study (NHS) (1984-2012) and 45,830 men in the Health Professionals Follow-up Study (HPFS) (1986-2012). Risk scores were computed for each individual based on the following factors previously associated with PD risk: total caffeine intake, smoking, physical activity, and family history of PD for the NHS, and additionally total flavonoid intake and dietary urate index for the HPFS...
April 11, 2018: Neurology
https://www.readbyqxmd.com/read/29643070/neurobehavioral-outcomes-11-years-after-neonatal-caffeine-therapy-for-apnea-of-prematurity
#14
Ines M Mürner-Lavanchy, Lex W Doyle, Barbara Schmidt, Robin S Roberts, Elizabeth V Asztalos, Lorrie Costantini, Peter G Davis, Deborah Dewey, Judy D'Ilario, Ruth E Grunau, Diane Moddemann, Harvey Nelson, Arne Ohlsson, Alfonso Solimano, Win Tin, Peter J Anderson
BACKGROUND AND OBJECTIVES: Caffeine is effective in the treatment of apnea of prematurity. Although caffeine therapy has a benefit on gross motor skills in school-aged children, effects on neurobehavioral outcomes are not fully understood. We aimed to investigate effects of neonatal caffeine therapy in very low birth weight (500-1250 g) infants on neurobehavioral outcomes in 11-year-old participants of the Caffeine for Apnea of Prematurity trial. METHODS: Thirteen academic hospitals in Canada, Australia, Great Britain, and Sweden participated in this part of the 11-year follow-up of the double-blind, randomized, placebo-controlled trial...
April 11, 2018: Pediatrics
https://www.readbyqxmd.com/read/29628020/casa-in-invertebrates
#15
Gerhard van der Horst, Monique Bennett, John D D Bishop
Sperm movement has been described in several phyla of invertebrates. Yet, sperm motility has only been quantified using computer-aided sperm analysis (CASA-Mot) in externally fertilising species (broadcast spawners) of two phyla, molluscs and echinoderms. In the present study we quantified in detail the nature of the sperm tracks, percentage motility groupings and detailed kinematics of rapid-, medium- and slow-swimming spermatozoa in the oyster Crassostrea gigas and four species never previously studied by CASA-Mot, namely the molluscs Choromytilus meridionalis, Donax serra and Haliotis midae and the echinoderm Parechinus angulosus...
April 9, 2018: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/29625932/effect-of-caffeine-on-anti-clotting-activity-of-warfarin-in-healthy-male-albino-rabbits
#16
Shamaila Zafar, Muhammad Mudassar Ashraf, Asghar Ali, Nosheen Aslam, Asma Ashraf, Sara Zafar, Rahat Andleeb, Muhammad Waqas Khadam, Imtiaz Mahmood Tahir, Muhammad Akram, Syed Muhammad Ali Shah, Muhammad Daniyal
Drug-drug interactions are most commonly occurring phenomenon in clinical practice. Many physicians are afraid of being involved in an allegation of malpractices due to the occurrence of any severe interaction. These interactions not only occur between drugs but also between any kind of food, tobacco smoke, caffeine and alcohol etc. Therefore, the present study was directed to inspect the effect of caffeine on the anticoagulation activity of warfarin in healthy adult male albino rabbits. Blank blood samples were collected from each rabbit...
March 2018: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29625706/pharmaceutical-cognitive-doping-in-students-a-chimeric-way-to-get-a-head
#17
Louise Carton, Nicolas Cabé, Olivier Ménard, Sylvie Deheul, Anne-Sylvie Caous, David Devos, Olivier Cottencin, Régis Bordet
For students, the pressing demands for memorization, top-level performance, and peer competition create an environment favorable for pharmaceutical cognitive doping behavior. We aimed to describe recent practices and the benefit/risk ratio of such behavior and to discuss the issues at stake. The prevalence of pharmaceutical cognitive doping among students has been reported from 1.3% to 33% across studies, with variations depending on country and definition of pharmaceutical cognitive doping. The therapeutic classes most frequently cited as being diverted for doping purposes are psychostimulants and nootropics (methylphenidate, modafinil, piracetam), corticosteroids, sedative drugs and beta-blockers...
March 6, 2018: Thérapie
https://www.readbyqxmd.com/read/29624433/pharmacological-potential-of-methylxanthines-retrospective-analysis-and-future-expectations
#18
João Monteiro, Marco G Alves, Pedro F Oliveira, Branca M Silva
Methylated xanthines (methylxanthines) are available from a significant number of different botanical species. They are ordinarily included in daily diet, in many extremely common beverages and foods. Caffeine, theophylline and theobromine are the main methylxanthines available from natural sources. The supposedly relatively low toxicity of methylxanthines, combined with the many beneficial effects that have been attributed to these compounds through time, generated a justified attention and a very prolific ground for dedicated scientific reports...
April 6, 2018: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/29624417/consumption-of-green-coffee-and-the-risk-of-chronic-diseases
#19
Nevin Sanlİer, Azize Atİk, İlker Atİk
Green coffee contains macro nutrients such as carbohydrates, protein, fat, as well as minor components such as caffeine, trigonelin and chlorogenic acid. Phenolics, chlorogenic acids and brown pigments are sources of natural antixodants. High polypehonic materials found in green coffee and especially chlorogenic acid in it have an important place. It is considered that; green coffee has effects on body mass, blood glucose and lipid levels, blood pressure, prevention from cardiovascular diseases which is based on chlorogenic acid consisting antioxidant activity...
April 6, 2018: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/29623384/precise-accurate-and-user-independent-blood-collection-system-for-dried-blood-spot-sample-preparation
#20
Ricardo Neto, Andrew Gooley, Michael C Breadmore, Emily F Hilder, Florian Lapierre
An accurate and precise 3 μL blood collection and dispensing system is presented for the preparation of dried blood spot (DBS) samples. Using end-to-end glass capillaries in conjugation with pre-punched DBS pads, a blood micro collection system was developed to eliminate the haematocrit dispersion, widely associated with DBS technology, while providing better levels of accuracy and precision during sample preparation. This methodology is compared to traditional micro-volume blood collection systems, such as a pipette and a digitally controlled analytical syringe...
April 5, 2018: Analytical and Bioanalytical Chemistry
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