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https://www.readbyqxmd.com/read/29447949/protective-effects-of-alpinae-oxyphyllae-fructus-extracts-on-lipopolysaccharide-induced-animal-model-of-alzheimer-s-disease
#1
Yunlong Wang, Mengshi Wang, Kaiyue Fan, Tongde Li, Tingxu Yan, Bo Wu, Kaishun Bi, Ying Jia
ETHNOPHARMACOLOGICAL RELEVANCE: Alpinae Oxyphyllae Fructus (AOF) with warming and tonifying the kidney and spleen, anti-salivation, anti-polyuria and anti-diarrhea functions is the dried ripe fruits of Alpinia oxyphylla Miq. (Zingiberaceae). As a traditional Chinese medicine, its application history is very long. AIMS OF THE STUDY: The purpose of our study is to investigate the effects of different solvent extracts from AOF on lipopolysaccharide (LPS)-induced animal model of Alzheimer's disease (AD) to elucidate the traditional medical theories with modern pharmacological methods and provide a reference for further clarifying its active components and mechanisms...
February 12, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29446772/production-of-ready-to-use-few-layer-graphene-in-aqueous-suspensions
#2
Jose M González-Domínguez, Verónica León, María Isabel Lucío, Maurizio Prato, Ester Vázquez
Graphene has promising physical and chemical properties such as high strength and flexibility, coupled with high electrical and thermal conductivities. It is therefore being incorporated into polymer-based composites for use in electronics and photonics applications. A main constraint related to the graphene development is that, being of a strongly hydrophobic nature, almost all dispersions (usually required for its handling and processing toward the desired application) are prepared in poisonous organic solvents such as N-methyl pyrrolidone or N,N-dimethyl formamide...
March 2018: Nature Protocols
https://www.readbyqxmd.com/read/29438752/design-and-evaluation-of-chitosan-poly-l-lactide-pectin-based-composite-scaffolds-for-cartilage-tissue-regeneration
#3
Sarada Prasanna Mallick, Bhisham Narayan Singh, Amit Rastogi, Pradeep Srivastava
Poor regenerative potential of cartilage tissue due to the avascular nature and lack of supplementation of reparative cells impose an important challenge in recent medical practice towards development of artificial extracellular matrix with enhanced neo-cartilage tissue regeneration potential. Chitosan (CH), poly (l-lactide) (PLLA), and pectin (PC) compositions were tailored to generate polyelectrolyte complex based porous scaffolds using freeze drying method and crosslinked by 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC), N-hydroxysuccinimide (NHS) solution containing chondroitin sulfate (CS) to mimic the composition as well as architecture of the cartilage extracellular matrix (ECM)...
February 10, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29438634/regulating-cannabis-manufacturing-applying-public-health-best-practices-from-tobacco-control
#4
Daniel G Orenstein, Stanton A Glantz
State legalization and regulation of cannabis, despite continued federal illegality, is a massive shift in regulatory approach. Manufactured cannabis, including concentrates, extracts, edibles, tinctures, topicals and other products, has received less attention than more commonly used dried flower, but represents emerging regulatory challenges due to additives, potency, consumption methods, and abuse and misuse potential. In November 2017, the California Department of Public Health (CDPH) released initial cannabis manufacturing regulations as part of a new state regulatory structure...
February 13, 2018: Journal of Psychoactive Drugs
https://www.readbyqxmd.com/read/29433308/aqueous-zinc-compounds-as-residual-antimicrobial-agents-for-textiles
#5
Brandon Holt, Shawn Gregory, Todd A Sulchek, Shannon Yee, Mark D Losego
Textiles, especially those worn by patients and medical professionals, serve as a vector for proliferating pathogens. Upstream manufacturing techniques and end user practices, such as transition metal embedment in textile fibers or alcohol-based disinfectants, can mitigate pathogen growth, but both techniques have their shortcomings. Fiber embedment requires complete replacement of all fabrics in a facility, and the effects of embedded nanoparticles on human health remain unknown. Alcohol-based, end-user disinfectants are short-lived because they quickly volatilize...
February 13, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29389582/tea-silkworm-droppings-as-an-enriched-source-of%C3%A2-tea-flavonoids
#6
Tzu-Yun Chou, Meei-Ju Yang, Shih-Kung Tseng, Shoei-Sheng Lee, Chia-Chuan Chang
Andraca droppings is the waste excreted from the tea biter Andraca theae. Its chemical constituents and potential medical use, unlike those of the traditional Chinese medicine silkworm droppings, have not been reported yet. To explore new nutraceuticals, the chemical constituents of this substance were investigated. Since the bioactive ingredients are generally present in the EtOAc-soluble fraction, this fraction, obtained from the ethanolic extract of the dried Andraca droppings by liquid-liquid partitioning, was separated by chromatographic methods, including Sephadex LH-20, centrifugal partition chromatography, and RP-18 columns, to produce 14 compounds (1-14)...
January 2018: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/29377638/biofluid-spectroscopic-disease-diagnostics-a-review-on-the-processes-and-spectral-impact-of-drying
#7
REVIEW
James M Cameron, Holly J Butler, David S Palmer, Matthew J Baker
The complex patterns observed from evaporated liquid drops have been examined extensively over the last 20 years. Complete understanding of drop deposition is vital in many medical processes, and one which is essential to the translation of biofluid spectroscopic disease diagnostics. The promising use of spectroscopy in disease diagnosis has been hindered by the complicated patterns left by dried biological fluids which may inhibit the clinical translation of this technology. Coffee ring formation, cracking and gelation patterns have all been observed in biofluid drops, and with surface homogeneity being a key element to many spectroscopic techniques, experimental issues have been found to arise...
January 26, 2018: Journal of Biophotonics
https://www.readbyqxmd.com/read/29368328/-the-man-with-the-withered-hand-iconography-of-the-saturnine-palsy
#8
REVIEW
P E Balcarce
INTRODUCTION: The synoptic gospels tell about a man who cannot extend his hand, that appeared dried. The description is consistent with radial palsy. Christian artists depicted this gospel story producing a rich material, unexplored from the medical point of view. AIM: To analyze the mentioned iconography verifying the depicted lesions and their possible causes. DEVELOPMENT: Six representations of the evangelical text pertaining to the period comprehended between 10th and 17th centuries were selected...
February 1, 2018: Revista de Neurologia
https://www.readbyqxmd.com/read/29330991/diaphyseal-nutrient-foramina-in-dried-human-adult-long-bones-of-lower-limb-in-pakistan
#9
Ejaz Afzal, Fatima Sherin, Omair Khan, Noaman Hussain Siddiqui
BACKGROUND: osteogenesis needs circulation of blood in the bones. Bone growth, repair of fracture, maintenance of bone vitality and other injures also need blood circulation in proper way. Blood is allowed to flow via holes in the diaphysis, which are called as nutrient foramina. METHODS: The crosssectional study was done in the department of Anatomy, Ayub and Khyber Medical College (Osteology Sections). The aim was to observe diaphyseal nutrient foramina in the human long bones of the lower limb...
October 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/29330883/genotype-phenotype-correlations-in-individuals-with-pathogenic-rere-variants
#10
Valerie K Jordan, Brieana Fregeau, Xiaoyan Ge, Jessica Giordano, Ronald J Wapner, Tugce B Balci, Melissa T Carter, John A Bernat, Amanda N Moccia, Anshika Srivastava, Donna M Martin, Stephanie L Bielas, John Pappas, Melissa D Svoboda, Marlène Rio, Nathalie Boddaert, Vincent Cantagrel, Andrea M Lewis, Fernando Scaglia, Jennefer N Kohler, Jonathan A Bernstein, Annika M Dries, Jill A Rosenfeld, Colette DeFilippo, Willa Thorson, Yaping Yang, Elliott H Sherr, Weimin Bi, Daryl A Scott
Heterozygous variants in the arginine-glutamic acid dipeptide repeats gene (RERE) have been shown to cause neurodevelopmental disorder with or without anomalies of the brain, eye, or heart (NEDBEH). Here we report nine individuals with NEDBEH who carry partial deletions or deleterious sequence variants in RERE. These variants were found to be de novo in all cases in which parental samples were available. An analysis of data from individuals with NEDBEH suggests that point mutations affecting the Atrophin-1 domain of RERE are associated with an increased risk of structural eye defects, congenital heart defects, renal anomalies and sensorineural hearing loss when compared to loss-of-function variants that are likely to lead to haploinsufficiency...
January 13, 2018: Human Mutation
https://www.readbyqxmd.com/read/29323423/enteral-feeding-tube-clogging-what-are-the-causes-and-what-are-the-answers-a-bench-top-analysis
#11
Christopher M Garrison
BACKGROUND: Clogged enteral feeding tubes remain a significant barrier to the delivery of nutrition, hydration, and medications to patients who cannot tolerate oral intake. There is limited research that compares the relative efficacy of different methods used to clear a clogged feeding tube. The objectives of this study were to better understand the factors that contribute to enteral feeding tube clogging and to test the efficacy of 3 methods for clearing clogged feeding tubes. METHODS: Three formulations of clogs were artificially created and tested in vitro and composed of various quantities of crushed medication (ie, aspirin) and 0...
February 2018: Nutrition in Clinical Practice
https://www.readbyqxmd.com/read/29318387/antimicrobial-activity-of-psidium-cattleianum-associated-with-calcium-hydroxide-against-enterococcus-faecalis-and-candida-albicans-an-in-vitro-study
#12
Jorgiana Sangalli, Elerson Gaetti Jardim Júnior, Carlos Roberto Emerenciano Bueno, Rogério Castilho Jacinto, Gustavo Sivieri-Araújo, João Eduardo Gomes Filho, Luciano Tavares Ângelo Cintra, Eloi Dezan Junior
OBJECTIVE: Evaluate, in vitro, the antimicrobial activity of Psidium cattleianum leaf extracts combined with calcium hydroxide against Enterococcus faecalis and Candida albicans biofilm. MATERIALS AND METHODS: Dentin specimens obtained from extracted bovine incisors were infected during 14 days with E. faecalis ATCC 29212 and C. albicans ATCC 10231. The specimens were filled with calcium hydroxide pastes prepared with the following vehicles: Psidium cattleianum ethanolic, Psidium cattleianum propylene glycolic, distilled water, and saline as control...
January 9, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29277712/economic-feasibility-and-environmental-impact-of-synthetic-spider-silk-production-from-escherichia-coli
#13
Alan M Edlund, Justin Jones, Randolph Lewis, Jason C Quinn
Major ampullate spider silk represents a promising protein-based biomaterial with diverse commercial potential ranging from textiles to medical devices due to its excellent physical and thermal properties. Recent advancements in synthetic biology have facilitated the development of recombinant spider silk proteins from Escherichia coli (E. coli), alfalfa and goats. This study specifically investigates the economic feasibility and environmental impact of synthetic spider silk manufacturing. Pilot scale data was used to validate an engineering process model that includes all of the required sub-processing steps for synthetic fiber manufacture: production, harvesting, purification, drying, and spinning...
December 22, 2017: New Biotechnology
https://www.readbyqxmd.com/read/29237375/adhesive-drug-delivery-systems-based-on-polyelectrolyte-complex-nanoparticles-pec-np-for-bone-healing
#14
Martin Muller, David Vehlow, Bernhard Torger, Birgit Urban
BACKGROUND: In this contribution an overview is given on own work concerning drug loaded polyelectrolyte complex (PEC) nanoparticles (NP) used to functionalize bone substitute materials (BSM) for the therapy of bone defects associated with systemic bone diseases. In this context drug loaded PEC NP have certain advantages, which are exemplarily summarized herein. METHODS: Concerning preparative methods PEC NP were fabricated by controlled mixing of polycation and polyanion solutions and integration of charged drugs during and after mixing...
December 12, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29235305/-discussion-on-related-problems-of-model-species-of-fungus%C3%AF-paecilomyces-hepialid
#15
Ru-Qin Dai, Chong-Yao Shen, Xiao-Ming Li, Jiang-Li Lan, Shu-Fang Lin, Ai-Juan Shao
Paecilomyces hepiali is a new species of fungus isolated from a field collection of Ophiocordyceps sinensis from Baima snow mountain, Diqing Tibetan Autonomous Prefecture, Yunnan Province by the Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences. The specimen was identified and named as Paecilomyces hepiali by Qing-Tao Chen, the professor of the Institute of Microbiology, Chinese Academy of Sciences (Paecilomyces hepiali) (2008), who identified a dried culture of living strain 82-2 as the holotype...
October 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29217729/bone-marrow-solid-core-biopsy-needle-a-critical-assessment-of-the-utility-benefits-and-limitations-of-the-instruments-employed-in-current-day-haematology-and-oncology
#16
REVIEW
Anwarul Islam
The optimal clinical evaluation of the bone marrow requires an examination of air-dried and well-stained films of the aspirated tissue along with a histopathological evaluation of adequately processed and properly stained core biopsy specimens. A bone marrow evaluation can be essential in establishing a diagnosis, determining the efficacy of treatment in haematological disorders and to monitor haematological status of patients following bone marrow/stem cell transplantation. It is also an essential component of the staging process for newly diagnosed malignancies...
December 7, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/29211858/iohexol-plasma-clearance-simplified-by-dried-blood-spot-testing
#17
Sergio Luis-Lima, Flavio Gaspari, Natalia Negrín-Mena, Fabiola Carrara, Laura Díaz-Martín, Alejandro Jiménez-Sosa, Federico González-Rinne, Armando Torres, Esteban Porrini
Background: Renal function can be estimated with formulas, which are inaccurate, or measured with gold standard methods, which are reliable but unpractical. We propose to simplify the plasma clearance of iohexol, a gold standard method to measure renal function, by dried blood spot (DBS) testing. Methods: We compared glomerular filtration rate (GFR) values assessed by DBS and the reference plasma analysis technique. We tested in vitro the agreement between non-volumetric and volumetric DBS with the reference technique...
December 4, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29197048/contraception-menstruation-and-sexuality-after-bariatric-surgery-a-prospective-cohort-study
#18
Julie Luyssen, Goele Jans, Annick Bogaerts, Dries Ceulemans, Christophe Matthys, Bart Van der Schueren, Matthias Lannoo, Johan Verhaeghe, Luc Lemmens, Lore Lannoo, Jill Shawe, Roland Devlieger
BACKGROUND: Women with a history of bariatric surgery are recommended to avoid pregnancy at least 12 months after surgery. Evidence on the impact of bariatric surgery on contraception, menstrual cycle, and sexuality in the first year postoperative is therefore indispensable. OBJECTIVES: The objective of this paper is to prospectively study changes in contraception, menstrual cycle and sexuality in women of reproductive age following bariatric surgery. SETTING: The study was conducted in two secondary medical centers and a tertiary academic medical center...
December 2, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/29195144/quantification-of-amlodipine-in-dried-blood-spot-samples-by-high-performance-liquid-chromatography-tandem-mass-spectrometry
#19
Gaoyun Chen, Feras Jirjees, Abdel Al Bawab, James C McElnay
A sensitive and specific method, utilising high performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS) was developed for the quantitative determination of amlodipine in dried blood spot (DBS) samples. Chromatographic separation was achieved using a Waters XBridge C18 column with gradient elution of a mixture of water and acetonitrile containing 0.1% formic acid (v/v). Amlodipine was quantified using a Waters Quattro Premier mass spectrometer coupled with an electro-spray ionization (ESI) source in positive ion mode...
November 16, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29192000/drooling-reduction-intervention-randomised-trial-dri-comparing-the-efficacy-and-acceptability-of-hyoscine-patches-and-glycopyrronium-liquid-on-drooling-in-children-with-neurodisability
#20
Jeremy R Parr, Emma Todhunter, Lindsay Pennington, Deborah Stocken, Jill Cadwgan, Anne E O'Hare, Catherine Tuffrey, Jane Williams, Mike Cole, Allan F Colver
OBJECTIVE: Investigate whether hyoscine patch or glycopyrronium liquid is more effective and acceptable to treat drooling in children with neurodisability. DESIGN: Multicentre, single-blind, randomised controlled trial. SETTING: Recruitment through neurodisability teams; treatment by parents. PARTICIPANTS: Ninety children with neurodisability who had never received medication for drooling (55 boys, 35 girls; median age 4 years)...
November 30, 2017: Archives of Disease in Childhood
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