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https://www.readbyqxmd.com/read/28928792/garidisan-improving-the-quality-of-ulcer-healing-in-rats-with-ulcerative-colitis
#1
Lin Wang, Wei-Zhi Liu, Ling-Yan Pei, Yu-Shi Ke, Jian Cui, Shu-Chun Li
Garidisan, commonly used in Mongolia to treat ulcerative colitis (UC), contains wild poppy and Artemisia frigida Willd. Clinical evidence shows that Garidisan can effectively treat UC and that recurrence is low. Thus, we evaluated the effects of Garidisan on ulcer healing quality and the regulation of immune balance in rats with experimental UC. UC was induced by immunization with TNBS and Garidisan significantly reduced DAI, CMDI, and HS. H&E staining, SEM, and VG staining showed that Garidisan repaired damaged intestinal mucosa and significantly reduced expression of ICAM-1 and CD105 in regenerated tissues of UC rats...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28922749/unraveling-additional-o-methylation-steps-in-benzylisoquinoline-alkaloid-biosynthesis-in-california-poppy-eschscholzia-californica
#2
Ratmoyo Purwanto, Kentaro Hori, Yasuyuki Yamada, Fumihiko Sato
California poppy (Eschscholzia californica), a member of the Papaveraceae family, produces many biologically active benzylisoquinoline alkaloids (BIAs), such as sanguinarine, macarpine and chelerythrine. Sanguinarine biosynthesis has been elucidated at the molecular level, and its biosynthetic genes have been isolated and used in synthetic biology approaches to produce BIAs in vitro. However, several genes involved in the biosynthesis of macarpine and chelerythrine have not yet been characterized. In this study, we report the isolation and characterization of a novel O-methyltransferase (OMT) involved in the biosynthesis of partially characterized BIAs, especially chelerythrine...
September 1, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28882382/soil-transmitted-helminth-infections
#3
REVIEW
Peter Mark Jourdan, Poppy H L Lamberton, Alan Fenwick, David G Addiss
More than a quarter of the world's population is at risk of infection with the soil-transmitted helminths Ascaris lumbricoides, hookworm (Ancylostoma duodenale and Necator americanus), Trichuris trichiura, and Strongyloides stercoralis. Infected children and adults present with a range of medical and surgical conditions, and clinicians should consider the possibility of infection in individuals living in, or returning from, endemic regions. Although safe and effective drugs are donated free to endemic countries, only half of at-risk children received treatment in 2016...
September 4, 2017: Lancet
https://www.readbyqxmd.com/read/28867064/increased-dna-methylation-of-abcb1-cyp2d6-and-oprm1-genes-in-newborn-infants-of-methadone-maintained-opioid-dependent-mothers
#4
Poppy McLaughlin, Helen Mactier, Cheryl Gillis, Tamas Hickish, Anton Parker, Wei-Jun Liang, M David Osselton
OBJECTIVE: To investigate whether in utero opioid exposure, which has been linked to adverse neurodevelopmental and social outcomes, is associated with altered DNA methylation of opioid-related genes at birth. STUDY DESIGN: Observational cohort study of 21 healthy methadone-maintained opioid-dependent mother-infant dyads consecutively delivered at >36 weeks of gestation, and 2 comparator groups: smoking, "deprived" opioid-naïve mother-infant dyads (n = 17) and nonsmoking, "affluent" opioid-naïve mother-infant dyads (n = 15)...
August 31, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28861252/florally-rich-habitats-reduce-insect-pollination-and-the-reproductive-success-of-isolated-plants
#5
Tracie M Evans, Stephen Cavers, Richard Ennos, Adam J Vanbergen, Matthew S Heard
Landscape heterogeneity in floral communities has the potential to modify pollinator behavior. Pollinator foraging varies with the diversity, abundance, and spatial configuration of floral resources. However, the implications of this variation for pollen transfer and ultimately the reproductive success of insect pollinated plants remains unclear, especially for species which are rare or isolated in the landscape. We used a landscape-scale experiment, coupled with microsatellite genotyping, to explore how the floral richness of habitats affected pollinator behavior and pollination effectiveness...
August 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28835924/vomocytosis-of-live-pathogens-from-macrophages-is-regulated-by-the-atypical-map-kinase-erk5
#6
Andrew S Gilbert, Paula I Seoane, Poppy Sephton-Clark, Aleksandra Bojarczuk, Richard Hotham, Emanuele Giurisato, Adil R Sarhan, Amy Hillen, Greetje Vande Velde, Nathanael S Gray, Dario R Alessi, Debbie L Cunningham, Cathy Tournier, Simon A Johnston, Robin C May
Vomocytosis, or nonlytic extrusion, is a poorly understood process through which macrophages release live pathogens that they have failed to kill back into the extracellular environment. Vomocytosis is conserved across vertebrates and occurs with a diverse range of pathogens, but to date, the host signaling events that underpin expulsion remain entirely unknown. We use a targeted inhibitor screen to identify the MAP kinase ERK5 as a critical suppressor of vomocytosis. Pharmacological inhibition or genetic manipulation of ERK5 activity significantly raises vomocytosis rates in human macrophages, whereas stimulation of the ERK5 signaling pathway inhibits vomocytosis...
August 2017: Science Advances
https://www.readbyqxmd.com/read/28835630/crab-spider-lures-prey-in-flowerless-neighborhoods
#7
Camila Vieira, Eduardo N Ramires, João Vasconcellos-Neto, Ronei J Poppi, Gustavo Q Romero
One fundamental question in prey luring systems is to understand how visual signals are interpreted by the receiver. Predators lure prey by falsely imitating the signal of a model, or may exploit sensory preferences of the receivers, which search for rewarding signals. Crab spiders reflect ultraviolet (UV) light, ambush pollinators on flowers, and manipulate flower UV signals altering the behavior and response of prey. Whereas crab spiders typically depend on flowers to forage, adult Epicadus heterogaster departs from this standard behavior by preying on pollinators upon green leaves, even in the absence of flowers nearby...
August 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28800150/heterozygosity-for-p2y12-receptor-gene-mutation-associated-with-postoperative-hemorrhage-in-a-greater-swiss-mountain-dog
#8
Rebecca S Flores, Mary K Boudreaux, Barbara Vasquez, Poppy Bristow, Lillian R Aronson, Kari Santoro-Beer, Mary Beth Callan
A 3-year-old, female Greater Swiss Mountain dog developed a hemoperitoneum following an exploratory laparotomy and ovariohysterectomy. Platelet count, PT, APTT, and plasma von Willebrand factor antigen concentration were within RIs. A buccal mucosal bleeding time (BMBT) was prolonged. Given the probability of a hereditary thrombopathia, the dog was administered desmopressin, fresh platelet transfusions, and aminocaproic acid to control hemorrhage. Subsequently, DNA testing for the P2Y12 receptor gene mutation identified the dog as being a heterozygote (carrier)...
August 11, 2017: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/28738632/raman-hyperspectral-imaging-in-conjunction-with-independent-component-analysis-as-a-forensic-tool-for-explosive-analysis-the-case-of-an-atm-explosion
#9
Mariana Ramos Almeida, Lucio Paulo Lima Logrado, Jorge Jardim Zacca, Deleon Nascimento Correa, Ronei Jesus Poppi
In this work, Raman hyperspectral imaging, in conjunction with independent component analysis, was employed as an analytical methodology to detect an ammonium nitrate fuel oil (ANFO) explosive in banknotes after an ATM explosion experiment. The proposed methodology allows for the identification of the ANFO explosive without sample preparation or destroying the sample, at quantities as small as 70μgcm(-2). The explosive was identified following ICA data decomposition by the characteristic nitrate band at 1044cm(-1)...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28737547/quality-improvement-initiative-for-family-centered-care-in-the-neonatal-intensive-care-unit-of-a-tertiary-hospital-in-south-africa
#10
Carin Maree, Poppy Kekana, Christa van der Walt, Mariatha Yazbek, Ronell Leech
The introduction of family-centered care in the neonatal intensive care unit was identified as a high priority to facilitate bonding and attachment with potential positive outcomes for the parents and infants. The aim of the study was, therefore, to develop and implement a quality improvement initiative to foster family-centered care in a tertiary neonatal intensive care unit from birth onward. A pretest posttest intervention design was used using mixed methods over 3 phases to determine the perceived level of family-centered care according to healthcare professionals and parents using self-administered questionnaires; to develop and implement a quality improvement initiative to enhance family-centered care in a neonatal intensive care unit using a nominal group technique, followed by the quality improvement process; and to evaluate the outcomes of the initiative by repeating the self-administered questionnaires to parents and staff...
July 2017: Journal of Perinatal & Neonatal Nursing
https://www.readbyqxmd.com/read/28734354/determination-of-aqueous-antibiotic-solutions-using-sers-nanogratings
#11
Koh Yiin Hong, Carlos Diego Lima de Albuquerque, Ronei J Poppi, Alexandre G Brolo
The emergence of antibiotics and their active metabolites in aquatic ecosystem has motivated the development of sensitive and reliable sensors to monitor traces of antibiotics and metabolites in drinking water sources (i.e. surface water). The surface enhanced Raman scattering (SERS) technique, which is widely recognized as a high sensitivity method for molecular vibrational detection, is potentially a powerful tool for trace environmental contamination analysis. The main goal of this work is to demonstrate pharmaceutical and metabolite multiplexing detection using the SERS approach...
August 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28729873/ageratum-enation-virus-infection-induces-programmed-cell-death-and-alters-metabolite-biosynthesis-in-papaver-somniferum
#12
Ashish Srivastava, Lalit Agrawal, Rashmi Raj, Meraj Jaidi, Shri K Raj, Swati Gupta, Ritu Dixit, Poonam C Singh, Tusha Tripathi, Om P Sidhu, Brahma N Singh, Sudhir Shukla, Puneet S Chauhan, Susheel Kumar
A previously unknown disease which causes severe vein thickening and inward leaf curl was observed in a number of opium poppy (Papaver somniferum L.) plants. The sequence analysis of full-length viral genome and associated betasatellite reveals the occurrence of Ageratum enation virus (AEV) and Ageratum leaf curl betasatellite (ALCB), respectively. Co-infiltration of cloned agroinfectious DNAs of AEV and ALCB induces the leaf curl and vein thickening symptoms as were observed naturally. Infectivity assay confirmed this complex as the cause of disease and also satisfied the Koch's postulates...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28681463/confirmation-of-recent-heroin-abuse-accepting-the-challenge
#13
REVIEW
Alexandra Maas, Burkhard Madea, Cornelius Hess
Confirmation or exclusion of recent heroin consumption is still one of the major challenges for forensic and clinical toxicologists. A great variety of biomarkers is available for heroin abuse confirmation, including various opium alkaloids (e.g. morphine, codeine), street heroin impurities (e.g. 6-acetylcodeine (6-AC), noscapine, papaverine) as well as associated metabolites (e.g. 6-monoacetylmorphine (6-MAM), morphine glucuronides). Though, the presence of most of these biomarkers cannot solely be attributed to a previous heroin administration but can, among other things, also be due to consumption of poppy seed products ('poppy seed defense'), opium preparations or specific medications, respectively...
July 6, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28676375/the-family-of-berberine-bridge-enzyme-like-enzymes-a-treasure-trove-of-oxidative-reactions
#14
REVIEW
Bastian Daniel, Barbara Konrad, Marina Toplak, Majd Lahham, Julia Messenlehner, Andreas Winkler, Peter Macheroux
Biological oxidations form the basis of life on earth by utilizing organic compounds as electron donors to drive the generation of metabolic energy carriers, such as ATP. Oxidative reactions are also important for the biosynthesis of complex compounds, i.e. natural products such as alkaloids that provide vital benefits for organisms in all kingdoms of life. The vitamin B2-derived cofactors flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD) enable an astonishingly diverse array of oxidative reactions that is based on the versatility of the redox-active isoalloxazine ring...
July 1, 2017: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/28655546/optimised-nlc-a-nanotechnological-approach-to-improve-the-anaesthetic-effect-of-bupivacaine
#15
Gustavo H Rodrigues da Silva, Lígia N M Ribeiro, Hery Mitsutake, Viviane A Guilherme, Simone R Castro, Ronei J Poppi, Márcia C Breitkreitz, Eneida de Paula
The short time of action and systemic toxicity of local anaesthetics limit their clinical application. Bupivacaine is the most frequently used local anaesthetic in surgical procedures worldwide. The discovery that its S(-) enantiomeric form is less toxic than the R(+) form led to the introduction of products with enantiomeric excess (S75:R25 bupivacaine) in the market. Nevertheless, the time of action of bupivacaine is still short; to overcome that, bupivacaine S75:R25 (BVCS75) was encapsulated in nanostructured lipid carriers (NLC)...
June 24, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28641826/the-chemical-history-of-morphine-an-8000-year-journey-from-resin-to-de-novo-synthesis
#16
Karolina Brook, Jessica Bennett, Sukumar P Desai
Evidence of human use of opium dates back as far as the sixth millennium BCE. Ancient societies through the Renaissance period created a variety of opium products, proliferating its common use and subsequent addiction. Because the active moiety was not known at this time, the potency of these opium concoctions could neither be predicted nor controlled. The first step in identifying opium's active ingredient, morphine, was its chemical isolation in the early 1800s by Wilhelm Sertürner. The subsequent elucidation of morphine's chemical formula and Sir Robert Robinson's derivation of morphine's structural formula, which won him the 1947 Nobel Prize in Chemistry, round out 150 years of the incremental advances in our chemical understanding of morphine...
April 2017: Journal of Anesthesia History
https://www.readbyqxmd.com/read/28633584/variation-of-alkaloid-contents-and-antimicrobial-activities-of-papaver-rhoeas-l-growing-in-turkey-and-northern-cyprus
#17
İlkcan Çoban, Gizem Gülsoy Toplan, Berna Özbek, Çağlayan Unsal Gürer, Günay Sarıyar
CONTEXT: Papaver rhoeas L. (Papaveraceae) corn poppy, widely distributed in Turkey, is used to make a cough syrup for children, as a tea for disturbed sleep, for pain relief and as a sedative in folk medicine. OBJECTIVE: Samples of P. rhoeas collected from eight different locations in Turkey and three from northern Cyprus were investigated for their alkaloid content and screened for their antimicrobial activities. MATERIALS AND METHODS: From the aerial parts of P...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28630559/drug-policy-and-indigenous-peoples
#18
Julian Burger, Mary Kapron
This paper identifies the principal concerns of indigenous peoples with regard to current international treaties on certain psychoactive substances and policies to control and eradicate their production, trafficking, and sale. Indigenous peoples have a specific interest in the issue since their traditional lands have become integrated over time into the large-scale production of coca, opium poppy, and cannabis crops, in response to high demand from the American and European markets, among others. As a consequence, indigenous peoples are persecuted because of their traditional use of these and other plant-based narcotics and hallucinogens...
June 2017: Health and Human Rights
https://www.readbyqxmd.com/read/28622767/praziquantel-decreases-fecundity-in-schistosoma-mansoni-adult-worms-that-survive-treatment-evidence-from-a-laboratory-life-history-trade-offs-selection-study
#19
Poppy H L Lamberton, Christina L Faust, Joanne P Webster
BACKGROUND: Mass drug administration of praziquantel is the World Health Organization's endorsed control strategy for schistosomiasis. A decade of annual treatments across sub-Saharan Africa has resulted in significant reductions of infection prevalence and intensity levels, although 'hotspots' remain. Repeated drug treatments place strong selective pressures on parasites, which may affect life-history traits that impact transmission dynamics. Understanding drug treatment responses and the evolution of such traits can help inform on how to minimise the risk of drug resistance developing, maximise sustainable control programme success, and improve diagnostic protocols...
June 16, 2017: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/28614028/spontaneous-pulmonary-embolism-following-a-recently-thrombosed-disused-haemodialysis-fistula
#20
Poppy Elmhirst, Bryan Renton
No abstract text is available yet for this article.
June 2, 2017: British Journal of Hospital Medicine
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