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https://www.readbyqxmd.com/read/29676628/increasing-the-resolution-of-chronic-obstructive-pulmonary-disease-definition-lessons-from-a-cohort-with-remote-but-extensive-exposure-to-secondhand-tobacco-smoke
#1
Mehrdad Arjomandi, Siyang Zeng, Paul D Blanc, Warren M Gold
RATIONALE: The Global Initiative for Chronic Obstructive Lung Disease criteria require a ratio of forced expiratory volume in 1 second (FEV1 ) to forced vital capacity (FVC) (FEV1 /FVC) of less than 0.70 for the diagnosis of chronic obstructive pulmonary disease, whereas other criteria emphasize a lower limit of normal approach. However, the use of Global Initiative for Chronic Obstructive Lung Disease (or lower limit of normal) criteria may result in classification of many smokers with respiratory morbidities as not having chronic obstructive pulmonary disease...
April 2018: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29676590/emphysema-management-from-investigational-endobronchial-coils-to-lung-transplantation
#2
Harpreet Singh Grewal, Atul C Mehta
This brief imaging case report highlights a successful bridge to lung transplantation after endobronchial coil assisted lung volume reduction procedure. Our patient was a 64-year-old male with severe emphysema (FEV1:19%, RV: 289%, TLC: 143%), on maximum medical regimen who was enrolled into the Lung Volume Reduction Coil Treatment (RENEW) Study. He underwent bilateral endobronchial coil placement in a two-step procedure, with an immediate improvement in symptoms and pulmonary function testing (FEV1:21%, RV: 254%, TLC: 138%)...
April 20, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29676537/recovery-of-pulmonary-functions-exercise-capacity-and-quality-of-life-after-pulmonary-rehabilitation-in-survivors-of-ards-due-to-severe-influenza-a-h1n1-pneumonitis
#3
Meng-Jer Hsieh, Wei-Juen Lee, Hsiu-Ying Cho, Meng-Fang Wu, Han-Chung Hu, Kuo-Chin Kao, Ning-Hung Chen, Ying-Huang Tsai, Chung-Chi Huang
BACKGROUND: Acute respiratory distress syndrome (ARDS) due to severe influenza A H1N1 pneumonitis would result in impaired pulmonary functions and health-related quality of life (HRQoL) after hospital discharge. OBJECTIVES: The recovery of pulmonary functions, exercise capacity and HRQoL in the survivors of ARDS due to 2009 pandemic influenza A H1N1 pneumonitis (H1N1-ARDS) were evaluated in a tertiary teaching hospital in the northern Taiwan between May 2010 and June 2011...
April 20, 2018: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/29676127/-study-on-quality-control-of-holotrichia-diomphalia-larvae-by-tlc-and-hplc
#4
Yan-Tao Sun, Jing Sun, Lu-Hong Wang, Lei Zhao
The TLC method was established for identification of Holotricha diomphalia larvae and the HPLC method was used to determine the content of inosine and guanosine in H. diomphalia larvae. The HPLC analysis was performed on a Waters HSS T3(4.6 mm×250 mm, 5 μm) column of with mobile phase consisting of acetonitrile (A) and 0.08% trifluoroacetic acid (B) in gradient elution. The detection wavelength was 260 nm. The flow rate was 1.0 mL·min⁻¹. The column temperature was 30 °C. As a result, TLC identification method had a good reproducibility and highly specificity...
March 2018: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29674242/highly-sensitive-oligothiophene-phenylamine-based-dual-functional-fluorescence-turn-on-sensor-for-rapid-and-simultaneous-detection-of-al-3-and-fe-3-in-environment-and-food-samples
#5
Zongrang Guo, Qingfen Niu, Tianduo Li
Developing low-cost and efficient sensors for rapid, selective and sensitive detection of the transition metal ions in environmental and food science is very important. In this study, a novel dual-functional fluorescent "turn-on" sensor 3TP based on oligothiophene-phenylamine Schiff base has been synthesized for discrimination and simultaneous detection of both Al3+ and Fe3+ ions with high selectivity and anti-interference over other metal ions. Sensor 3TP displayed a very fast fluorescence-enhanced response towards Al3+ and Fe3+ ions with low detection limits (0...
April 11, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29670346/prediction-of-severe-exacerbations-and-mortality-in-copd-the-role-of-exacerbation-history-and-inspiratory-capacity-total-lung-capacity-ratio
#6
João Cardoso, Ricardo Coelho, Carla Rocha, Constança Coelho, Luísa Semedo, A Bugalho Almeida
Background: Severe exacerbations and mortality are major outcomes in COPD, and risk factors for these events are actively searched for. Several predictors of mortality have been identified in COPD. The inspiratory capacity/total lung capacity (IC/TLC) ratio has been shown to be a strong predictor of all cause and respiratory mortality in patients with COPD. The major objectives of this study were to analyze which clinical parameters, including lung volumes, were the best predictors of the 5-year cumulative risk of hospital admissions or death and the 5-year risk of exacerbations, in stable COPD patients...
2018: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29669618/determination-of-cobalamin-and-related-compounds-in-foods
#7
Fumio Watanabe, Tomohiro Bito
Cobalamin, also known as the red-colored vitamin B12 , is found in animal-based foods such as meat, milk, and fish. Various cobalamin compounds are extracted from foods and converted into cyanocobalamin, which is most stable, to be analyzed by various methods. Traditionally, the cobalamin content of foods is determined by microbiological assay with Lactobacillus delbrueckii subsp. lactis American Type Culture Collection 7830. However, this lactic acid bacterium can substitute deoxyribosides or deoxynucleotides (known as an alkali-resistant factor) for cobalamin...
April 18, 2018: Journal of AOAC International
https://www.readbyqxmd.com/read/29662025/biochemical-characterization-and-degradation-pattern-of-a-unique-ph-stable-polym-specific-alginate-lyase-from-newly-isolated-serratia-marcescens-nj-07
#8
Benwei Zhu, Fu Hu, Heng Yuan, Yun Sun, Zhong Yao
Enzymatic preparation of alginate oligosaccharides with versatile bioactivities by alginate lyases has attracted increasing attention due to its featured characteristics, such as wild condition and specific products. In this study, AlgNJ-07, a novel polyM-specific alginate lyase with high specific activity and pH stability, has been purified from the newly isolated marine bacterium Serratia marcescens NJ-07. It has a molecular weight of approximately 25 kDa and exhibits the maximal activity of 2742.5 U/mg towards sodium alginate under 40 °C at pH 9...
April 15, 2018: Marine Drugs
https://www.readbyqxmd.com/read/29660474/decarboxylation-of-indomethacin-induced-by-heat-treatment
#9
Yohsuke Shimada, Haruki Komaki, Ayako Hirai, Satoru Goto, Yasuyuki Hashimoto, Hiromi Uchiro, Hiroshi Terada
As crystalline indomethacin is heated and subsequently cooled, it transforms into glassy indomethacin. While the original crystals are off-white in color, the glass becomes blackish-brown via a yellow intermediate stage. TLC of the components of the glass revealed three bands. The yellow component, which is generated either under hypoxic conditions or in the dark, was elucidated by NMR spectroscopy to be a decarboxylated fragment produced by thermal degradation. The colorless component is proposed to be formed by the opening of the indole ring of indomethacin; the structure of this degradation product was identified by EI-MS to be the same as the oxidative-cleavage product formed upon UV-irradiation, as previously reported...
April 13, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29651453/bacterial-cell-wall-precursor-phosphatase-assays-using-thin-layer-chromatography-tlc-and-high-pressure-liquid-chromatography-hplc
#10
Manuel Pazos, Christian Otten, Waldemar Vollmer
Peptidoglycan encases the bacterial cytoplasmic membrane to protect the cell from lysis due to the turgor. The final steps of peptidoglycan synthesis require a membrane-anchored substrate called lipid II, in which the peptidoglycan subunit is linked to the carrier lipid undecaprenol via a pyrophosphate moiety. Lipid II is the target of glycopeptide antibiotics and several antimicrobial peptides, and is degraded by 'attacking' enzymes involved in bacterial competition to induce lysis. Here we describe two protocols using thin-layer chromatography (TLC) and high pressure liquid chromatography (HPLC), respectively, to assay the digestion of lipid II by phosphatases such as Colicin M or the LXG toxin protein TelC from Streptococcus intermedius ...
March 20, 2018: Bio-protocol
https://www.readbyqxmd.com/read/29651376/synthesis-characterization-and-application-of-lipase-conjugated-citric-acid-coated-magnetic-nanoparticles-for-ester-synthesis-using-waste-frying-oil
#11
Unisha Patel, Kishor Chauhan, Shilpa Gupte
In the present work, magnetic nanoparticles (MNPs) were prepared by chemical precipitation of trivalent and divalent iron ions which were functionalized using citric acid. The bacterial isolate Staphylococcus epidermidis KX781317 was isolated from oil-contaminated site. The isolate produced lipase, which was purified and immobilized on magnetic nanoparticles (MNPs) for ester synthesis from waste frying oil (WFO). The characterization of MNPs employed conventional TEM, XRD and FTIR techniques. TEM analysis of MNPs showed the particle size in the range of 20-50 nm...
April 2018: 3 Biotech
https://www.readbyqxmd.com/read/29644259/rna-cap-methyltransferase-activity-assay
#12
Jackson B Trotman, Daniel R Schoenberg
Methyltransferases that methylate the guanine-N7 position of the mRNA 5' cap structure are ubiquitous among eukaryotes and commonly encoded by viruses. Here we provide a detailed protocol for the biochemical analysis of RNA cap methyltransferase activity of biological samples. This assay involves incubation of cap-methyltransferase-containing samples with a [32 P]G-capped RNA substrate and S-adenosylmethionine (SAM) to produce RNAs with N7-methylated caps. The extent of cap methylation is then determined by P1 nuclease digestion, thin-layer chromatography (TLC), and phosphorimaging...
March 20, 2018: Bio-protocol
https://www.readbyqxmd.com/read/29630134/clinical-efficacy-of-sequential-therapy-with-voriconazole-on-copd-patients-in-acute-phase-with-pulmonary-aspergillosis-and-effects-on-cytokines-and-pulmonary-functions
#13
J-F Du, Y-M Chi, Z Song, Q-G Di, J Shi, J Lv, Z-T Mai, M Li, B-H Sun, M-M Jiang
OBJECTIVE: To explore the clinical efficacy of sequential therapy with voriconazole on chronic obstructive pulmonary disease (COPD) patients in acute phase with pulmonary aspergillosis and its effects on cytokines and pulmonary functions. PATIENTS AND METHODS: A total of 110 COPD patients in acute phase with pulmonary aspergillosis who were admitted to the hospital between February 2015 and November 2016 were enrolled. We divided them randomly into two groups, i...
March 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29629213/different-spectrophotometric-methods-for-simultaneous-determination-of-trelagliptin-and-its-acid-degradation-product
#14
Shereen Mowaka, Bassam M Ayoub, Mostafa A Hassan, Wafaa A Zaghary
New spectrophotometric and chemometric methods were carried out for the simultaneous assay of trelagliptin (TRG) and its acid degradation product (TAD) and applied successfully as a stability indicating assay to recently approved Zafatek® tablets. TAD was monitored using TLC to ensure complete degradation. Furthermore, HPLC was used to confirm dealing with one major acid degradation product. The proposed methods were developed by manipulating zero-order, first-derivative, and ratio spectra of TRG and TAD using simultaneous equation, first-derivative, and mean-centering methods, respectively...
2018: Journal of Analytical Methods in Chemistry
https://www.readbyqxmd.com/read/29624609/integrated-approach-for-identifying-and-evaluating-the-quality-of-marsdenia-tenacissima-in-the-medicine-market
#15
Ning Yu, Yu-Long Wei, Yue Zhu, Ning Zhu, Yan-Li Wang, Hai-Ping Zhang, Ai-Dong Sun
The accurate identification and quality evaluation of herbal medical plants is highly necessary to ensure their safety and efficacy. In present study, a new strategy combining DNA barcoding techniques with thin-layer chromatography (TLC) and high-performance liquid chromatography (HPLC) was proposed to facilitate the identification and quality control of M. tenacissima. In present work, the internal transcribed spacer 2 (ITS2) barcode was successfully used to identify 58 M. tenacissima samples and its adulterants...
2018: PloS One
https://www.readbyqxmd.com/read/29622875/study-of-complete-haemogram-and-iron-profile-from-cord-blood-of-newborn-with-respect-to-primigravida-multigravida-and-apgar-score
#16
Madhumita Mondal, Swapan Kumar Sinha, Moumita Sengupta, Debdas Bose, Sudip Saha, Utpal Chaudhuri
Study of different parameters of cord blood usually reflects neonatal health status. One of the widely used system for assessing neonatal health is APGAR score. It is assed at 1 and 5 min from baby's birth. Immediate medical care may improve 5 min score of neonate who showed poor score at 1 min. The main objective of this study is to establish whether any correlation exists between complete hemogram and iron profile with APGAR score and gravid of mother. Cord blood was collected from 96 new born, delivered vaginally, mothers having no chronic medical disease...
April 2018: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/29622871/predictors-of-mononuclear-cell-yield-in-patients-undergoing-autologous-mononuclear-stem-cell-therapy-in-non-haemopoietic-degenerative-disorders
#17
Deepak Pahwa, Ratti Ram Sharma, Neelam Marwaha
Cellular therapy outcomes are influenced by cellular composition of the product. We analyzed the cellular profiles (TNC, MNC and CD34+ cells) of patients receiving mononuclear cell therapy in terms of age, gender, BMI, pre-harvest haematological counts and clinical conditions. Cellular profiles of 262 patients were analyzed in terms of age (age < 40 year, age 41-60 year and age > 60 year), gender, BMI (BMI < 22 kg/m2 , BMI 22-25 kg/m2 and BMI > 25 kg/m2 ), pre-harvest haematological profile and clinical conditions (chronic disorders, group A, acute vascular group B and traumatic events, group C)...
April 2018: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/29622870/lower-total-leukocyte-and-neutrophil-counts-in-healthy-young-africans-from-uganda
#18
Ritesh Goswami, Naveen Kakkar, M Joseph John
The total leukocyte count (TLC) is an important component of the complete blood count and influences many clinical decisions. The effect of race or ethnicity on TLC is not well known. The African population has been reported to have lower than normal TLC and neutrophil counts. In this study, thirty eight African students referred for medical check up to a tertiary care hospital were included. Complete blood count was done on a three part automated hematology analyzer. Blood smear examination and manual differential count was also done...
April 2018: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/29620595/pulmonary-function-test-abnormalities-in-children-with-inflammatory-bowel-disease-is-it-common
#19
Doaa Mohamed El Amrousy, Samir Hassan, Heba El-Ashry, Mohamed Yousef, Ragia Sharshar
OBJECTIVE: The aim of the study was to evaluate the frequency and type of pulmonary dysfunction in newly diagnosed children with inflammatory bowel disease (IBD) and the correlation between pulmonary function tests (PFTs) and IBD activity. METHODS: It is an observational case-control study. One hundred newly diagnosed children with IBD were enrolled as the patient group, which was subdivided into 52 with Crohn disease (CD) and 48 with ulcerative colitis (UC). Fifty healthy children matched for age, sex, height, and body mass index (BMI) served as the control group...
April 3, 2018: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/29619432/antibacterial-activity-of-dracontomelon-dao-extracts-on-methicillin-resistant-s-aureus-mrsa-and-e-coli-multiple-drug-resistance-mdr
#20
Yuniati Yuniati, Nurul Hasanah, Sjarif Ismail, Silvia Anitasari, Swandari Paramita
Background: Staphylococcus aureus , methicillin-resistant and Escherichia coli , multidrug-resistant included in the list of antibiotic-resistant priority pathogens from WHO. As multidrug-resistant bacteria problem is increasing, it is necessary to probe new sources for identifying antimicrobial compounds. Medicinal plants represent a rich source of antimicrobial agents. One of the potential plants for further examined as antibacterial is Dracontomelon dao (Blanco) Merr. & Rolfe. The present study designed to find the antibacterial activity of D...
2018: African Journal of Infectious Diseases
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