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https://www.readbyqxmd.com/read/29289772/light-absorption-properties-of-brown-carbon-over-the-southeastern-tibetan-plateau
#1
Chong-Shu Zhu, Jun-Ji Cao, Ru-Jin Huang, Zhen-Xing Shen, Qi-Yuan Wang, Ning-Ning Zhang
We present a study of the light-absorbing properties of water-soluble brown carbon (WS-BrC) and methanol-soluble brown carbon (MeS-BrC) at a remote site (Lulang, 3326m above sea level) in the southeastern Tibetan Plateau during the period 2015-2016. The light absorption coefficients at 365nm (babs365) of WS-BrC and MeS-BrC were the highest during winter and the lowest during monsoon season. MeS-BrC absorbs about 1.5 times higher at 365nm compared to WS-BrC. The absorption at 550nm appears lower compared to that of 365nm for WS-BrC and MeS-BrC, respectively...
December 28, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29230013/artemisia-annua-extract-prevents-ovariectomy-induced-bone-loss-by-blocking-receptor-activator-of-nuclear-factor-kappa-b-ligand-induced-differentiation-of-osteoclasts
#2
Sun Kyoung Lee, Hyungkeun Kim, Junhee Park, Hyun-Jeong Kim, Ki Rim Kim, Seung Hwa Son, Kwang-Kyun Park, Won-Yoon Chung
The activities of osteoclasts and osteoblasts are balanced to maintain normal bone density. Many pathological conditions cause osteoclastic bone resorption in excess of osteoblastic bone formation, resulting in osteoporosis. We found that oral administration of Artemisia annua ethanol extract (AaE) or major components, artemisinin and arteannuin B, to ovariectomized (OVX) mice prevented bone loss, as verified by examining three-dimensional images and bone morphometric parameters derived from microcomputed tomography analysis, as well as serum levels of bone turnover markers and proinflammatory cytokines...
December 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29229732/utilization-of-variant-and-fusion-proteins-to-functionally-map-the-aggregatibacter-actinomycetemcomitans-trimeric-autotransporter-protein-apia
#3
Carla Cugini, Yongyi Mei, David Furgang, Nisha George, Narayanan Ramasubbu, Daniel H Fine
The Gram-negative bacterium Aggregatibacter actinomycetemcomitans is a causative agent of localized aggressive periodontitis. Critical to its infection process is the first and essential step of attachment, which is related to the coordinated functions of surface components comprised of proteins and extracellular polysaccharides. One such protein is the outer membrane trimeric autotransporter protein ApiA, a versatile virulence factor with numerous functions including cell binding, invasion, serum resistance, autoaggregation, and induction of cytokine release...
December 11, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/29229459/regenerative-endodontic-procedures-among-endodontists-a-web-based-survey
#4
Jonathan Y Lee, Daniel D Kersten, Pete Mines, Thomas A Beltran
INTRODUCTION: The protocols that endodontists implement for regenerative endodontic procedures (REPs) are unknown. The aim of this study was to examine current REP protocols among practicing endodontists in the United States. METHODS: A Web-based survey was sent to 4060 active members of the American Association of Endodontists (AAE). A total of 850 participants completed the survey, representing a 20.9% response rate. RESULTS: Responses indicated 60% reported having performed REPs; most performed 1 to 3 per year...
December 8, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/29216465/optical-source-profiles-of-brown-carbon-in-size-resolved-particulate-matter-from-typical-domestic-biofuel-burning-over-guanzhong-plain-china
#5
Yali Lei, Zhenxing Shen, Tian Zhang, Qian Zhang, Qiyuan Wang, Jian Sun, Xuesong Gong, Junji Cao, Hongmei Xu, Suixin Liu, Liu Yang
In this study, both PM2.5 and size-resolved source samples were collected from a "heated kang" and an advanced stove to investigate the optical properties of brown carbon (BrC). The light-absorption coefficient (babs), the absorption Ångström exponent (AAE), and the mass absorption cross-section (MAC) of both water and methanol-extracted BrC were investigated. The methanol-extracted BrC (BrCmethanol) had higher light absorption than water-extracted BrC (BrCwater). The value of PM2.5 babs of BrCmethanol at 365nm (babs365,methanol) dramatically decreased from 64,669...
December 4, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29207766/successful-management-of-urosepsis-with-ceftriaxone-sulbactam-edta-a-case-report-of-penem-sparing-approach
#6
Amit Bery, Candy Sodhi, Rishu Bhanot
Over the past decade, the Anti-Microbial Resistance (AMR) among members of Enterobacteriaceae family is on rise mainly due to rapid spread of strains producing Extended-Spectrum Beta-Lactamases (ESBLs) and Metallo Beta-Lactamases (MBLs). Hence, the choice of drugs available for these resistant strains is diminishing and their treatment is becoming more challenging. This is a case of complicated Urinary Tract Infection (cUTI) due to ESBL producing E. coli leading to septic shock which was successfully managed with Antibiotic Adjuvant Entity (AAE), a combination of ceftriaxone+sulbactam+EDTA...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29137905/emergency-department-chest-radiography-for-children-with-asthma-exacerbation-is-infrequently-associated-with-change-of-management
#7
Evan H Allie, Henry E Dingle, William N Johnson, Jeffrey R Birnbaum, Melissa A Hilmes, Sudha P Singh, Donald H Arnold
BACKGROUND: Acute asthma exacerbations (AAE) account for many Pediatric Emergency Department (PED) visits. Chest radiography (CXR) is often performed in these patients to identify practice-changing findings such as pneumonia (PNA). Limited knowledge exists to balance the cost and radiation dose of CXR with expected yield of clinically meaningful information. OBJECTIVE: To determine in children with AAE with CXR, whether patient characteristics are associated with radiographic PNA; and significant practice change by initiation of antibiotic...
October 6, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29128878/microfracture-is-more-cost-effective-than-autologous-chondrocyte-implantation-a-review-of-level-1-and-level-2-studies-with-5%C3%A2-year-follow-up
#8
Tommy Frøseth Aae, Per-Henrik Randsborg, Hilde Lurås, Asbjørn Årøen, Øystein Bjerkestrand Lian
PURPOSE: Focal cartilage defects in the knee may have devastating effect on the knee joint, where two of the main surgical treatment options are microfracture and autologous chondrocyte implantation. Comparative studies have failed to establish which method yields the best clinical results. A cost-effectiveness analysis of microfracture and autologous chondrocyte implantation would contribute to the clinical decision process. METHODS: A PubMed search identifying level I and level II studies with 5 year follow-up was performed...
November 11, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29046012/root-aneurysm-following-aortic-valve-replacement-20-years-after-an-arterial-switch-operation
#9
Hikaru Ishii, Shigeyuki Aomi, Hideyuki Tomioka, Etsuji Umeda, Rihito Higashi, Kenji Yamazaki
Late development of annuloaortic ectasia (AAE) and progression of aortic regurgitation (AR) are widely recognized outcomes following an arterial switch operation (ASO). We treated a 29-year-old male with AAE and rapid aortic root expansion, who underwent ASO as a neonate and aortic valve replacement (AVR) as an adult. He was diagnosed as having dextro-(D-loop) transposition of the great arteries after birth and underwent ASO at the age of 13 months. At the age of 19 years, AVR was performed for progressive AR...
October 18, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/29039037/amaranth-seeds-amaranthus-palmeri-l-as-novel-feedstock-for-biodiesel-production-by-oleaginous-yeast
#10
Farha Deeba, Alok Patel, Neha Arora, Vikas Pruthi, Parul A Pruthi, Yuvraj S Negi
The potential of lipid accumulation by oleaginous yeast Cryptococcus vishniaccii grown on amaranth seed aqueous extract (AAE) media was assessed. Maximum cell biomass productivity of 104 mg/L/h, lipid productivity of 54 mg/L/h, and lipid content of 52.31% were recorded on AAE when carbon to nitrogen (C:N) ratio increased from 134 to 147 after removal of ammonia nitrogen. The lipid droplet (LD) size (2.32 ± 0.38 μm) was visualized by fluorescence microscopy using Nile red stain indicating maximum accumulated triacylglycerol (TAG) at C:N 147...
October 16, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29034570/efficacy-of-different-carriers-for-the-triple-antibiotic-powder-during-regenerative-endodontic-procedures
#11
David Hwang, Hanson Fong, James D Johnson, Avina Paranjpe
Chemical debridement during Regenerative Endodontic procedures is important. Previous research studies have evaluated various antibiotics and their concentrations but none have addressed the concern of delivering these materials. Hence, the purpose of this study was to determine what carrier could be used effectively in a clinical setting. Sixty caries-free maxillary incisors were used and inoculated with Enterococcus faecalis and divided into positive and irrigation controls and experimental groups that had triple antibiotic powder (1:1:1 ciprofloxacin:metronidazole:minocycline) delivered using various carriers: saline, cotton, sponge and methylcellulose...
October 16, 2017: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/29034198/phenolic-constituents-and-modulatory-effects-of-raffia-palm-leaf-raphia-hookeri-extract-on-carbohydrate-hydrolyzing-enzymes-linked-to-type-2-diabetes
#12
Felix A Dada, Sunday I Oyeleye, Opeyemi B Ogunsuyi, Tosin A Olasehinde, Stephen A Adefegha, Ganiyu Oboh, Aline A Boligon
This study sought to investigate the effects of Raffia palm (Raphia hookeri) leaf extract on enzymes linked to type-2 diabetes mellitus (T2DM) and pro-oxidant induced oxidative stress in rat pancreas. The extract was prepared and its α-amylase and α-glucosidase inhibitory effects were determined. Radical [2,2-diphenyl-1-picrylhydrazyl (DPPH)] scavenging and Fe(2+)-chelating abilities, and inhibition of Fe(2+)-induced lipid peroxidation in rat pancreas homogenate were assessed. Furthermore, total phenol and flavonoid contents, reducing property, and high performance liquid chromatography diode array detector (HPLC-DAD) fingerprint of the extract were also determined...
October 2017: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29027225/necroptotic-cell-death-in-anti-cancer-therapy
#13
REVIEW
Olga Krysko, Tania Løve Aaes, Valerian E Kagan, Katharina D'Herde, Claus Bachert, Luc Leybaert, Peter Vandenabeele, Dmitri V Krysko
Necroptosis is one the best-characterized forms of regulated necrosis. Necroptosis is mediated by the kinase activities of receptor interacting protein kinase-1 and receptor interacting protein kinase-3, which eventually lead to the activation of mixed lineage kinase domain-like. Necroptosis is characterized by rapid permeabilization of the plasma membrane, which is associated with the release of the cell content and subsequent exposure of damage-associated molecular patterns (DAMPs) and cytokines/chemokines...
November 2017: Immunological Reviews
https://www.readbyqxmd.com/read/28986069/accuracy-and-usefulness-of-aortic-annular-measurement-using-real-time-three-dimensional-transesophageal-echocardiography-comparison-with-direct-surgical-sizing
#14
Tomoko Nishi, Kentaro Shibayama, Minoru Tabata, Nahoko Kato, Masahiko Noguchi, Hiroshi Okumura, Yuji Kawano, Daisuke Nakatsuka, Kotaro Obunai, Yoshio Kobayashi, Hiroyuki Watanabe
BACKGROUND: There is a paucity of data that demonstrates a clinical impact of anatomical measurements of the aortic annulus by three-dimensional (3D) transesophageal echocardiography (TEE) on surgical aortic valve replacement (AVR). The aim of this study is to validate the accuracy of 3D TEE measurements compared with the direct intraoperative annular diameter and to investigate an impact of 3D TEE on a prediction of AVR with aortic annular enlargement (AAE). METHODS AND RESULTS: We retrospectively enrolled 61 patients who underwent both two-dimension (2D) and 3D TEE and transthoracic echocardiography (TTE) before AVR...
October 3, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28973102/how-african-american-english-speaking-first-graders-segment-and-rhyme-words-and-nonwords-with-final-consonant-clusters
#15
Amy J Shollenbarger, Gregory C Robinson, Valentina Taran, Seo-Eun Choi
Purpose: This study explored how typically developing 1st grade African American English (AAE) speakers differ from mainstream American English (MAE) speakers in the completion of 2 common phonological awareness tasks (rhyming and phoneme segmentation) when the stimulus items were consonant-vowel-consonant-consonant (CVCC) words and nonwords. Method: Forty-nine 1st graders met criteria for 2 dialect groups: AAE and MAE. Three conditions were tested in each rhyme and segmentation task: Real Words No Model, Real Words With a Model, and Nonwords With a Model...
September 22, 2017: Language, Speech, and Hearing Services in Schools
https://www.readbyqxmd.com/read/28901345/-acute-alcoholic-hepatitis
#16
Gianni Testino, Emanuele Scafato, Valentino Patussi
Chronic alcohol related liver disease is characterized by a cascade of events defined as follows: steatosis, steatohepatitis/steatofibrosi, cirrhosis and hepatocellular carcinoma. On one of these histologic patterns may overlap acute alcoholic hepatitis (AAE) (mild, moderate, severe). Severe AAE can cause a severe clinical picture: jaundice with a duration of less than three months, jaundice in the first decompensation event, serum bilirubin higher than 5 mg/dL, ratio AST/ALT >2:1, AST less than 500 IU/L ALT <300 IU/L, neutrophil leukocytosis and increased GGT...
September 2017: Recenti Progressi in Medicina
https://www.readbyqxmd.com/read/28873617/nutritional-and-bioactive-potential-of-myrtaceae-fruits-during-ripening
#17
Siluana Katia Tischer Seraglio, Mayara Schulz, Priscila Nehring, Fabiana Della Betta, Andressa Camargo Valese, Heitor Daguer, Luciano Valdemiro Gonzaga, Roseane Fett, Ana Carolina Oliveira Costa
This study aimed to characterize jabuticaba (Myrciaria cauliflora), guabiju (Myrcianthes pungens), and jambolan (Syzygium cumini) in relation to its individual phenolic compounds (LC-ESI-MS/MS), antioxidant capacity, total monomeric anthocyanin, sugars, and minerals during ripening (intermediate and ripe stages). In the three studied fruits, 22 phenolic compounds were quantified, especially phenolic acids and flavonoids, which presented a higher concentration in the intermediate ripening stage. In contrast, the total monomeric anthocyanin, fructose, glucose, Ca, Na values were higher in the ripe stage...
January 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/28870197/polarity-based-characterization-of-biologically-active-extracts-of-ajuga-bracteosa-wall-ex-benth-and-rp-hplc-analysis
#18
Syeda Saniya Zahra, Madiha Ahmed, Muhammad Qasim, Bilquees Gul, Muhammad Zia, Bushra Mirza, Ihsan-Ul Haq
BACKGROUND: The concept of botanical therapeutics has revitalized due to wide importance of plant derived pharmaceuticals. Therefore, the ameliorative characteristics of Ajuga bracteosa were studied. METHODS: Total phenolic content, flavonoid content, antioxidant capacity, reducing power and free-radical scavenging activity were determined colorimetrically. Specific polyphenols were quantified by RP-HPLC analysis. Preliminary cytotoxicity was tested using brine shrimp lethality assay while antiproliferative activity against THP-1 and Hep-G2 cell lines was determined by MTT and SRB protocols respectively...
September 5, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28867094/antioxidant-properties-of-selected-fruit-cultivars-grown-in-sri-lanka
#19
K D R R Silva, M S F Sirasa
Extracts of twenty locally available Sri Lankan fruits were analysed for 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging activity, ferrous reducing antioxidant power (FRAP), total phenolic content (TPC), total flavonoid content (TFC) and vitamin C content. The results showed that gooseberry (Phyllanthus emblica 'local') exhibited the highest DPPH scavenging activity (111.25mg ascorbic acid equivalent antioxidant capacity (AEAC)/g), FRAP (1022.05μmol FeSO4/g), TPC (915.7mg gallic acid equivalents (GAE)/100g), TFC (873...
January 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/28861213/idiopathic-non-histaminergic-acquired-angioedema-a-case-series-and-discussion-of-published-clinical-trials
#20
Martin Christian Bucher, Tatjana Petkovic, Arthur Helbling, Urs Christian Steiner
BACKGROUND: Idiopathic non-histaminergic acquired angioedema (InH-AAE) is a rare disease for which there are no available laboratory parameters to clearly define the disorder. Therapy is often difficult and various treatment options have been proposed. In this paper, we have evaluated the most effective therapies for InH-AAE on the basis of current literature and report the therapeutic effect of omalizumab in three patients with InH-AAE. METHODS: Literature was searched with a combination of MeSH/EMTREE terms and freetext search for angioedema and therapy/omalizumab in the databases Medline (Ovid), PubMed/Premedline, Embase, Cochrane library and Scopus with no time or language restrictions...
2017: Clinical and Translational Allergy
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