153 research outputs found

    Between-Site Variation in Suitability of \u3ci\u3eSalix Cordata\u3c/i\u3e as a Host for \u3ci\u3eAltica Subplicata\u3c/i\u3e (Coleoptera: Chrysomelidae)

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    To investigate local adaptation of insect herbivore populations to host plant populations, willow flea beetles (Altica subplicata) were collected from two distant sites in northern Michigan (Grass Bay, GB; Pte. Aux Chenes, PAC) and reared on host plants (Salix cordata) collected from each of the sites. Larval development (measured by molt frequency and length of larval stage) was significantly faster on PAC plants than on GB plants but did not differ for the two beetle populations. For both populations of beetles, mean pupal weight was also greater on PAC plants than on GB plants. Thus, there was no evidence for adaptation of beetle populations to local host plant populations. The greater performance of A. subplicata on PAC plants most likely resulted from a lower trichome density on leaves of plants from that site

    Inhaled beclomethasone (BDP) with non-CFC propellant (HFA 134a) is equivalent to BDP-CFC for the treatment of asthma

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    AbstractAs part of a development programme for a range of new CFC-free beclomethasone dipropionate (BDP) inhalers, two multicentre double-blind studies have been conducted to compare the therapeutic equivalence of a new HFA-134a propellant-formulated BDP metered-dose inhaler (Norton Healthcare Ltd, London, U.K.) with a CFC counterpart for the management of adult patients with all grades of asthma. Doses of 100 μg qds for 6 weeks were administered in a low dose study and in a high dose study 500 μg qds doses were given for 12 weeks.Efficacy assessments included lung function (FEV1) in the clinic and asthma symptoms, peak flow rates and bronchodilator use by patients on diary cards. Safety parameters measured included routine haematology and biochemistry (including serum cortisols), clinical adverse events and throat swabs for Candida spp.Both CFC and HFA-formulations of inhaled BDP produced similar and significant improvements in lung function and asthma symptoms. In the low dose study, baseline to endpoint FEV1 increased from 2·2 ± 0·51 to 2·5 ± 0·81 (P=0·0001) with BDP-CFC and from 2·2 ± 0·51 to 2·6 ± 0·81 with BDP-HFA (P=0·0001), with no significant differences between treatments. In the high dose study, corresponding increases were 2·1 ± 0·71 to 2·4 ± 0·91 (P=0·0002) for BDP-CFC and 2·1 ± 0·71 to 2·3 ± 0·71 (P=0·017) for BDP-HFA. PEF also improved similarly on both treatments in both studies. Both formulations were well tolerated with no difference in the pattern of adverse events, effect on serum cortisol or Candida colonization.These studies showed that, in the management of asthma, the new HFA-formulated BDP metered dose inhaler is equivalent to, and directly substitutable for, the older CFC-formulated product at the same dose, making change-over for patients straightforward

    Long-term results of combined treatment of colorectal cancer

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    ROMANA 3: A phase 3 safety extension study of anamorelin in advanced non-small-cell lung cancer (NSCLC) patients with cachexia

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    © The Author 2017. Published by Oxford University Press on behalf of the European Society for Medical Oncology. All rights reserved. Background: Cancer anorexia-cachexia is a debilitating condition frequently observed in NSCLC patients, characterized by decreased body weight, reduced food intake, and impaired quality of life. Anamorelin, a novel selective ghrelin receptor agonist, has anabolic and appetite-enhancing activities. Patients and methods: ROMANA 3 was a safety extension study of two phase 3, double-blind studies that assessed safety and efficacy of anamorelin in advanced NSCLC patients with cachexia. Patients with preserved Eastern Cooperative Oncology Group ≤ 2 after completing 12 weeks (w) on the ROMANA 1 or ROMANA 2 trials (0-12 weeks) could enroll in ROMANA 3 and continue to receive anamorelin 100 mg or placebo once daily for an additional 12w (12-24 weeks). The primary endpoint of ROMANA 3 was anamorelin safety/tolerability (12-24 weeks). Secondary endpoints included changes in body weight, handgrip strength (HGS), and symptom burden (0-24 weeks). Results: Of the 703 patients who completed ROMANA 1 and ROMANA 2, 513 patients entered ROMANA 3 (anamorelin, N = 345, mean age 62.0 years; placebo, N = 168; mean age 62.2 years). During ROMANA 3, anamorelin and placebo groups had similar incidences of treatment-emergent adverse events (TEAEs; 52.2% versus 55.7%), grade ≥ 3 TEAEs (22.4% versus 21.6%), and serious TEAEs (12.8% versus 12.6%). There were 36 (10.5%) and 23 (13.8%) deaths in the anamorelin and placebo groups, respectively; none were drug-related. Improvements in body weight and anorexia-cachexia symptoms observed in the original trials were consistently maintained over 12-24 weeks. Anamorelin, versus placebo, significantly increased body weight from baseline of original trials at all time points (P < 0.0001) and improved anorexia-cachexia symptoms at weeks 3, 6, 9, 12, and 16 (P < 0.05). No significant improvement in HGS was seen in either group. Conclusion: During the 12-24 weeks ROMANA 3 trial, anamorelin continued to be well tolerated. Over the entire 0-24w treatment period, body weight and symptom burden were improved with anamorelin

    Effect of Interspecific Yeast Hybrids for Secondary In-Bottle Alcoholic Fermentation of English Sparkling Wines

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    In sparkling winemaking, only a few yeast strains are regularly used for the secondary in-bottle alcoholic fermentation (SiBAF). Recently, advances in yeast development programs have yielded new breeds of interspecific wine yeast hybrids that ferment efficiently while producing novel flavors and aromas. In this work, the chemical and sensorial impacts of the use of interspecific yeast hybrids for SiBAF were studied using three commercial English base wines prepared for SiBAF using two commercial and four novel interspecific hybrids. After 12 months of lees aging, the chemical and macromolecular composition, phenolic profile, foaming, viscosity and sensory properties of the resulting 13 wines were assessed. Chemically, the yeast strains did not result in significant differences in the main wine parameters, while some differences in their macromolecular contents and sensory characteristics were noticeable. The foamability was mostly unaffected by the strain used; however, some effect on the foam stability was noticeable, likely due to the differences in polysaccharides released into the wines by the yeast strains. The wines exhibited different sensory characteristics in terms of aroma and bouquet, balance, finish, overall liking and preference, but these were mostly attributable to the differences in the base wines rather than the strain used for SiBAF. Novel interspecific yeast hybrids can be used for the elaboration of sparkling wines, as they provided wines with chemical characteristics, flavor and aroma attributes similar to those of commonly used commercial Saccharomyces cerevisiae strains

    Contextual adaptation of the Personnel Evaluation Standards for assessing faculty evaluation systems in developing countries: the case of Iran

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    <p>Abstract</p> <p>Background</p> <p>Faculty evaluations can identify needs to be addressed in effective development programs. Generic evaluation models exist, but these require adaptation to a particular context of interest. We report on one approach to such adaptation in the context of medical education in Iran, which is integrated into the delivery and management of healthcare services nationwide.</p> <p>Methods</p> <p>Using a triangulation design, interviews with senior faculty leaders were conducted to identify relevant areas for faculty evaluation. We then adapted the published checklist of the Personnel Evaluation Standards to fit the Iranian medical universities' context by considering faculty members' diverse roles. Then the adapted instrument was administered to faculty at twelve medical schools in Iran.</p> <p>Results</p> <p>The interviews revealed poor linkages between existing forms of development and evaluation, imbalance between the faculty work components and evaluated areas, inappropriate feedback and use of information in decision making. The principles of Personnel Evaluation Standards addressed almost all of these concerns and were used to assess the existing faculty evaluation system and also adapted to evaluate the core faculty roles. The survey response rate was 74%. Responses showed that the four principles in all faculty members' roles were met <it>occasionally </it>to <it>frequently</it>. Evaluation of teaching and research had the highest mean scores, while clinical and healthcare services, institutional administration, and self-development had the lowest mean scores. There were statistically significant differences between small medium and large medical schools (p < 0.000).</p> <p>Conclusion</p> <p>The adapted Personnel Evaluation Standards appears to be valid and applicable for monitoring and continuous improvement of a faculty evaluation system in the context of medical universities in Iran. The approach developed here provides a more balanced assessment of multiple faculty roles, including educational, clinical and healthcare services. In order to address identified deficiencies, the evaluation system should recognize, document, and uniformly reward those activities that are vital to the academic mission. Inclusion of personal developmental concerns in the evaluation discussion is essential for evaluation systems.</p
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