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https://www.readbyqxmd.com/read/29348647/the-contribution-of-predators-and-scavengers-to-human-well-being
#1
REVIEW
Christopher J O'Bryan, Alexander R Braczkowski, Hawthorne L Beyer, Neil H Carter, James E M Watson, Eve McDonald-Madden
Predators and scavengers are frequently persecuted for their negative effects on property, livestock and human life. Research has shown that these species play important regulatory roles in intact ecosystems including regulating herbivore and mesopredator populations that in turn affect floral, soil and hydrological systems. Yet predators and scavengers receive surprisingly little recognition for their benefits to humans in the landscapes they share. We review these benefits, highlighting the most recent studies that have documented their positive effects across a range of environments...
January 18, 2018: Nature Ecology & Evolution
https://www.readbyqxmd.com/read/29326192/evidence-for-sample-selection-effect-and-hawthorne-effect-in-behavioural-hiv-prevention-trial-among-young-women-in-a-rural-south-african-community
#2
Molly Rosenberg, Audrey Pettifor, Rhian Twine, James P Hughes, F Xavier Gomez-Olive, Ryan G Wagner, Afolabi Sulaimon, Stephen Tollman, Amanda Selin, Catherine MacPhail, Kathleen Kahn
OBJECTIVES: We examined the potential influence of both sample selection effects and Hawthorne effects in the behavioural HIV Prevention Trial Network 068 study, designed to examine whether cash transfers conditional on school attendance reduce HIV acquisition in young South African women. We explored whether school enrolment among study participants differed from the underlying population, and whether differences existed at baseline (sample selection effect) or arose during study participation (Hawthorne effect)...
January 10, 2018: BMJ Open
https://www.readbyqxmd.com/read/29288081/effect-of-poly-ethylene-glycol-on-insulin-stability-and-cutaneous-cell-proliferation-in-vitro-following-cytoplasmic-delivery-of-insulin-loaded-nanoparticulate-carriers-a-potential-topical-wound-management-approach
#3
Dalia H Abdelkader, Mohamed A Osman, Sanaa A El-Gizawy, Suzan J Hawthorne, Ahmed M Faheem, Paul A McCarron
We describe the development of a nanoparticulate system, with variation of poly(ethylene glycol) (PEG) content, capable of releasing therapeutic levels of bioactive insulin for extended periods of time. Recombinant human insulin was encapsulated in poly(d,l-lactide-co-glycolide) nanoparticles, manufactured with variation in poly(ethylene glycol) content, and shown to be stable for 6days using SDS-PAGE, western blot and MALDI MS. To determine if insulin released from this sustained release matrix could stimulate migration of cell types normally active in dermal repair, a model wound was simulated by scratching confluent cultures of human keratinocytes (HaCaT) and fibroblasts (Hs27)...
December 26, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29277104/the-importance-of-the-hawthorne-effect-on-psychological-outcomes-unveiled-in-a-randomized-controlled-trial-of-diabetes-technology
#4
Mary B Abraham, Jennifer A Nicholas, Michael Crone, Trang T Ly, Elizabeth A Davis, Timothy W Jones
No abstract text is available yet for this article.
December 1, 2017: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/29244241/vitamin-d-and-gestational-diabetes-mellitus-a-systematic-review-based-on-data-free-of-hawthorne-effect
#5
Yanbo Zhang, Yunhui Gong, Hongmei Xue, Jingyuan Xiong, Guo Cheng
BACKGROUND: Gestational diabetes mellitus (GDM) is an increasingly prevalent disorder, associated with low blood vitamin D (VD) level. OBJECTIVES: To evaluate the relationship between VD and GDM. SEARCH STRATEGY: EMBASE, MEDLINE, Cochrane library and China Biology Medicine disc were searched till May 2017. The references of previous studies were screened. SELECTION CRITERIA: Observational studies on the relationship between VD and GDM free from Hawthorne effect and randomized controlled trials of VD supplementation during pregnancy for preventing or treating GDM were included...
December 15, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29242036/seven-new-sesquineolignans-isolated-from-the-seeds-of-hawthorn-and-their-neuroprotective-activities
#6
Xiao-Xiao Huang, Qiang Ren, Xiao-Yu Song, Le Zhou, Guo-Dong Yao, Xiao-Bo Wang, Shao-Jiang Song
Seven new sesquineolignans (1-7) were isolated from the 70% ethanolic extract of the hawthorn seeds. Their structures were established by comprehensive spectroscopic analyses including 1D, 2D NMR, CD and HRESIMS data. The neuroprotective activity of the isolated sesquilignans towards H2O2-induced damage in human neuroblastoma SH-SY5Y cells was investigated. All of these sesquineolignans exhibited significant neuroprotective activity towards damaged SH-SY5Y cells, compared with the positive control (Trolox)...
December 11, 2017: Fitoterapia
https://www.readbyqxmd.com/read/29239959/bias-in-before-after-studies-narrative-overview-for-anesthesiologists
#7
Anthony M H Ho, Rachel Phelan, Glenio B Mizubuti, John A C Murdoch, Sarah Wickett, Adrienne K Ho, Vidur Shyam, Ian Gilron
Before-after study designs are effective research tools and in some cases, have changed practice. These designs, however, are inherently susceptible to bias (ie, systematic errors) that are sometimes subtle but can invalidate their conclusions. This overview provides examples of before-after studies relevant to anesthesiologists to illustrate potential sources of bias, including selection/assignment, history, regression to the mean, test-retest, maturation, observer, retrospective, Hawthorne, instrumentation, attrition, and reporting/publication bias...
December 11, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29239091/extra-corporeal-normothermic-machine-perfusion-of-the-porcine-kidney-working-towards-future-utilization-in-australasia
#8
Ahmer M Hameed, Ray Miraziz, David B Lu, Neil Warwick, Ali El-Ayoubi, Heather Burns, Yi Vee Chew, Ross Matthews, Greg O'Grady, Lawrence Yuen, Natasha Rogers, Henry C Pleass, Wayne J Hawthorne
BACKGROUND: The ongoing supply-demand gap with respect to donor kidneys for transplantation necessitates the increased use of higher kidney donor profile index and/or donation after circulatory death (DCD) kidneys. Machine perfusion (MP) preservation has become increasingly popular as a means to preserve such organs. Human data regarding normothermic kidney MP (NMP) is in its infancy, and such a system has not been established in the Australasian clinical setting. METHODS: Modified cardio-pulmonary bypass technology was utilized to develop a viable NMP kidney perfusion system using a porcine DCD model...
December 14, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/29234372/hawthorn-leaf-flavonoids-protect-against-diabetes-induced-cardiomyopathy-in-rats-via-pkc-%C3%AE-signaling-pathway
#9
Qing Min, Yuting Bai, Yuchen Zhang, Wei Yu, Minli Zhang, Dongyang Liu, Tingting Diao, Wei Lv
Objectives: DCM has become one of the main reasons of death in diabetic patients. In this study, we aimed to explore the hawthorn leaf flavonoids (HLF) protective effect against diabetes-induced cardiac injury and the underlying mechanisms in experimental rats. Methods: Experimental diabetic model was induced by intraperitoneal injection of streptozotocin (STZ, 40 mg/kg) in rats after feeding with high-fat diet for 8 weeks. The diabetic rats received a 16-week treatment of different doses of HLF (50, 100, and 200)...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29219914/the-hawthorne-effect-revisited
#10
Donald E Fry
No abstract text is available yet for this article.
January 2018: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/29200740/evaluation-of-hypolipidemic-and-antioxidant-effects-in-phenolrich-fraction-of-crataegus-pinnatifida-fruit-in-hyperlipidemia-rats-and-identification-of-chemical-composition-by-ultra-performance-liquid-chromatography-coupled-with-quadropole-time-of-flight-mass
#11
Feng Shao, Lifei Gu, Huijuan Chen, Ronghua Liu, Huilian Huang, Lanying Chen, Ming Yang
Background: Hawthorn (Crataegus pinnatifida) fruit has enjoyed a great popularity as a pleasant-tasting food associated with hypolipidemic and antioxidant effects. Objective: Our aim was to screen the effective fraction of hawthorn fruit in the treatment of hyperlipidemia rats. Materials and Methods: In this study, ethanol extract of hawthorn fruit (Fr.1) and four fractionated extracts (Fr.2, Fr.3, Fr.4, and Fr.5) were compared to total phenol content evaluated using Folin-Ciocalteu method, and hypolipidemic and antioxidant effects were assessed in hyperlipidemic rats...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29186392/hawthorne-effect-reporting-in-orthodontic-randomized-controlled-trials-truth-or-myth-blessing-or-curse
#12
Salem Abdulraheem, Lars Bondemark
Objective: To investigate in 10 orthodontic journals how many randomized controlled trials (RCTs) considered the Hawthorne effect, and if considered, to determine whether it was related to the patients or the therapists involved in the trial and, finally, to discuss the Hawthorne effect in an educational way. Materials and methods: A search was performed on the Medline database, via PubMed, for publication type 'randomized controlled trial' published for each journal between 1 August 2007 and 31 July 2017...
November 28, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/29167443/drift-dependent-changes-in-iceberg-size-frequency-distributions
#13
James D Kirkham, Nick J Rosser, John Wainwright, Emma C Vann Jones, Stuart A Dunning, Victoria S Lane, David E Hawthorn, Mateusz C Strzelecki, Witold Szczuciński
Although the size-frequency distributions of icebergs can provide insight into how they disintegrate, our understanding of this process is incomplete. Fundamentally, there is a discrepancy between iceberg power-law size-frequency distributions observed at glacial calving fronts and lognormal size-frequency distributions observed globally within open waters that remains unexplained. Here we use passive seismic monitoring to examine mechanisms of iceberg disintegration as a function of drift. Our results indicate that the shift in the size-frequency distribution of iceberg sizes observed is a product of fracture-driven iceberg disintegration and dimensional reductions through melting...
November 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29151068/crataegus-special-extract-ws-1442-up-to-date-review-of-experimental-and-clinical-experiences
#14
M Zorniak, B Szydlo, T F Krzeminski
Extracts and tinctures made from Crataegus spp. (Hawthorn) have been used as cardioprotective remedies since ancient times. WS 1442 special extract, manufactured by Dr. W. Schwabe Pharmaceuticals©, made from Crataegus spp. Leaves and flowers is one of the most studied and popular of preparations received from Hawthorn. It is integral, and most important active component of such herbal drugs as Crataegutt® novo 450, and CardioMax®. This standardized extract contains 18.75% oligomeric procyanidins (OPC), which have beneficial cardioprotective values and play a role as free-radicals scavengers, that protect the ischemic heart tissue from neutrophile elastase action successions...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29150986/memory-t-cells-are-significantly-increased-in-rejecting-liver-allografts-of-rhesus-monkeys
#15
Hwajung Kim, Hyeyoung Kim, Sun-Kyung Lee, Xue-Li Jin, Tae Jin Kim, Chanho Park, Jae-Il Lee, Hyo-Sin Kim, Suk Kyun Hong, Kyung Chul Yoon, Sung Woo Ahn, Kyoung-Bun Lee, Nam-Joon Yi, Jaeseok Yang, Kwang-Woong Lee, Wayne J Hawthorne, Kyung-Suk Suh
INTRODUCTION: The Rhesus monkey (RM) is an excellent preclinical model in kidney, heart and islet transplantation that has provided the basis for new immunosuppressive protocols for clinical studies. However, there remain relatively few liver transplantation (LT) models in nonhuman primates. In this study, we analyzed the immune cell populations of PBMCs and secondary lymphoid organs along with livers of normal rhesus monkeys and compared them to those of rejecting liver transplanted recipient's following withdrawal of immunosuppression...
November 18, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/29149790/impressions-of-using-the-cohen-mansfield-agitation-inventory-as-an-outcome-measure-lessons-learnt-for-future-clinical-researchers-innovative-practice
#16
Lindsey Brett, Victoria Traynor, Shahla Meedya, Paul Stapley
The Cohen-Mansfield Agitation Inventory was a tool originally developed for use in research to measure agitation and subsequently used in clinical settings. It was the primary outcome measure for a randomised controlled trial which evaluated the effects and feasibility of a physiotherapist-led physical exercise intervention on agitation and physical performance of individuals living with dementia in nursing homes. The study produced weak results in regards to the Cohen-Mansfield Agitation Inventory due to small sample size and perceived issues with the use of the Cohen-Mansfield Agitation Inventory...
January 1, 2017: Dementia
https://www.readbyqxmd.com/read/29145321/acupuncture-and-constraint-induced-movement-therapy-for-a-patient-with-chronic-stroke-one-year-follow-up-case-report
#17
Yuanyuan Jin, Xiaoqing Jin, Yidan Chen, Jianfang Zhu
RATIONALE: Spasticity is a widespread problem in chronic stroke. To date, no study has reported the long-term (up to 1 year) outcomes of acupuncture in combination with constraint-induced movement therapy in patients with chronic stroke. This report describes the successful addition of acupuncture on spasticity and arm function in a patient with chronic stroke and arm paresis. PATIENT CONCERNS: At screening, the patient was unable to voluntarily extend her interphalangeal or metacarpophalangeal joints beyond the 10 degrees required for constraint-induced movement therapy...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29135679/characterization-of-the-human-pancreas-side-population-as-a-potential-reservoir-of-adult-stem-cells
#18
Petra Augstein, Thomas Loudovaris, Esther Bandala-Sanchez, Peter Heinke, Gaetano Naselli, Lily Lee, Wayne J Hawthorne, L Jorge Góñez, Alana M Neale, François Vaillant, Helen E Thomas, Thomas W Kay, Ilia Banakh, Leonard C Harrison
OBJECTIVES: The side population (SP) contains cells with stem cell/progenitor properties. Previously, we observed that the mouse pancreas SP expanded after pancreatic injury. We aimed to characterize the SP in human pancreas as a potential source of stem cells. METHODS: Human organ donor pancreata were fractionated into islets and exocrine tissue, enriched by tissue culture and dispersed into single cells. Cells were phenotyped by flow cytometry, and the SP was defined by efflux of fluorescent dye Hoechst 33342 visualized by ultraviolet excitation...
November 10, 2017: Pancreas
https://www.readbyqxmd.com/read/29133340/effects-of-hawthorn-crataegus-pentagyna-leaf-extract-on-electrophysiologic-properties-of-cardiomyocytes-derived-from-human-cardiac-arrhythmia-specific-induced-pluripotent-stem-cells
#19
Sara Pahlavan, Marziyeh Shalchi Tousi, Mahdi Ayyari, Abolfazl Alirezalu, Hassan Ansari, Tomo Saric, Hossein Baharvand
Cardiac arrhythmias are major life-threatening conditions. The landmark discovery of induced pluripotent stem cells has provided a promising in vitro system for modeling hereditary cardiac arrhythmias as well as drug development and toxicity testing. Nowadays, nutraceuticals are frequently used as supplements for cardiovascular therapy. Here we studied the cardiac effects of hawthorn (Crataegus pentagyna) leaf extract using cardiomyocytes (CMs) differentiated from healthy human embryonic stem cells, long QT syndrome type 2 (LQTS2), and catecholaminergic polymorphic ventricular tachycardia type 1 (CPVT1) patient-specific induced pluripotent stem cells...
November 13, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29129385/effect-directed-fingerprints-of-77-botanical-extracts-via-a-generic-high-performance-thin-layer-chromatography-method-combined-with-assays-and-mass-spectrometry
#20
S Krüger, L Hüsken, R Fornasari, I Scainelli, G E Morlock
Quantitative effect-directed profiles of 77 industrially and freshly extracted botanicals like herbs, spices, vegetables and fruits, widely used as food ingredients, dietary supplements or traditional medicine, gave relevant information on their quality. It allows the assessment of food, dietary supplements and phytomedicines with regard to potential health-promoting activities. In contrary to sum parameter assays and targeted analysis, chromatography combined with effect-directed analysis allows fast assignment of single active compounds and evaluation of their contribution to the overall activity, originating from a food or botanical sample...
October 29, 2017: Journal of Chromatography. A
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