8,588 research outputs found

    High bat (Chiroptera) diversity in the Early Eocene of India

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    The geographic origin of bats is still unknown, and fossils of earliest bats are rare and poorly diversified, with, maybe, the exception of Europe. The earliest bats are recorded from the Early Eocene of North America, Europe, North Africa and Australia where they seem to appear suddenly and simultaneously. Until now, the oldest record in Asia was from the Middle Eocene. In this paper, we report the discovery of the oldest bat fauna of Asia dating from the Early Eocene of the Cambay Formation at Vastan Lignite Mine in Western India. The fossil taxa are described on the basis of well-preserved fragments of dentaries and lower teeth. The fauna is highly diversified and is represented by seven species belonging to seven genera and at least four families. Two genera and five species are new. Three species exhibit very primitive dental characters, whereas four others indicate more advanced states. Unexpectedly, this fauna presents strong affinities with the European faunas from the French Paris Basin and the German Messel locality. This could result from the limited fossil record of bats in Asia, but could also suggest new palaeobiogeographic scenarios involving the relative position of India during the Early Eocene

    A study on light trap catches of some rice pests in relation to meteorological factors

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    The effect of meteorological factors on the population build up of green leafhopper Nephotettix virescens Dist (Cicadellidae, Hemiptera), plant hoppers Cofana spectra Dist (Delphacidae, Hemiptera) and C. yasumatsui Young (Kolla mimica, Hemiptera) and rice gundhi bug Leptocoriza acuta Thunberg (Alydidae, Hemiptera) in rice growing season (July to November) was studied through light trap collection during ten years (1988–1997). Maximum populations of Nephotettix virescens Dist (Cicadellidae, Hemiptera) and C. yasumatsui Young (Kolla mimica, Hemiptera) were recorded in the third week of October during all the years. Cofana spectra Dist had maintained peak activity in respect of population in the last week of September and third week of October. Leptocoriza acuta Thunberg (Alydidae, Hemiptera) had maximum population in second and third weeks of October during the aforesaid period. No meteorological factors have significant effect on the population build up of Nephotettix virescens Dist, Cofana spectra Dist and C. yasumatsui Young in the month of October. In the case of Leptocoriza acuta Thunberg, no other factor but rainfall had positive correlation of order 0.857 with population build up in the fourth week of September.Key words/phrases: Meteorological factors, path analysis, regression analysis, rice insect pests SINET: Ethiopian Journal of Science: Vol. 27 (2) 2004: 165–17

    Weathered basalt application for management of Vertisols: A traditional knowledge of groundnut (Arachis hypogaea) growers of Gujarat, India

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    793-799Gujarat tops with 27.87% of total groundnut production. The basaltic shrink-swell soils are generally evaluated as unsuitable for groundnut production in Saurtashtra region of Gujarat. They have untapped source of traditional knowledge for managing heavy shrink-swell soils of basaltic terrain. Groundnut growers of the region are applying weathered basalt (WB, Vēraḍēḍa bēsālṭanuṁ in Gujarati) in pure form which is naturally available or sometimes treated by mixing the farmyard manures (FYM) or groundnut husk, and/or fortified with nitrogenous and phosphatic fertilizers. A study was planned to find out the reason for higher production of groundnut with the application of WB before sowing the seed. For this study the farmers were divided in to 05 groups on the basis of forms and combinations of WB application in groundnut fields. The participatory approaches and personal interviews were combined to collect the data from 25 farmers of each group. After interviewing the farmers, we came to know that this practice is being followed since 40 years. The study revealed that the practice significantly reduces the contracting and expanding phenomenon in black Vertisols and improve physico-chemical properties of soils like hydraulic characteristics (infiltration, permeability, percolation and drainage), aeration, bulk density, porosity, thermal conductivity and also improve availability of secondary (Ca, Mg & S) and micronutrients (Fe, Mn, Zn & Cu). The present study forms the basis for upgrading the traditional management packages for sustainable groundnut production in black soil region of India

    A COMPREHENSIVE REVIEW ON BARLERIA PRIONITIS (L.)

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    Barleria prionitis is a famous perennial plant commonly known as porcupine flower or Vajradanti. It is a shrub with yellow flowers and two flat seeds shielded with matted hairs, inhabit most parts of India. Various parts of the plant such as leaves, roots, aerial parts, flowers, and stems are used in the traditional system of medicine. Conventionally, various infusions are prepared using the plant parts and utilized for the treatment of different kinds of diseases. Owing to its incredible odontalgic property, it is extensively used in treating bleeding gums and toothache. From the pharmacological point, the plant has been effectively screened for antibacterial, antifungal, antiviral, anti-inflammatory, antifertility, antioxidant, enzyme inhibitory, hepatoprotective, antihypertensive, anticancer, and anticataract activities. Compounds such as tannins, saponins, glycosides, phenolic acids, phytosterols, and terpenes have been identified in the plant. The plant contains some specific compounds such as barlenoside, barlerine, acetylbarlerine, and balarenone and some common secondary metabolites such as lupeol, β-sitosterol, vanillic acid, and syringic acid. This review provides morphological, ethnomedical, pharmacological, and phytochemical data of the plant B. prionitis

    FORMULATION AND CHARACTERIZATION OF NANO LIPID CARRIER DRY POWDER INHALER CONTAINING CIPROFLOXACIN HYDROCHLORIDE AND N-ACETYL CYSTEINE

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    ABSTRACT Nanolipid carriers (NLC) are developed as an alternative to solid lipid nanocarriers in order to increase the payload and to prevent drug expulsion. In this study, NLCs loaded with ciprofloxacin hydrochloride (CIP) and N-Acetyl cysteine (NAC) were prepared and evaluated for its delivery to the lung for treatment of the symptoms of cystic fibrosis and chronic obstructive pulmonary disorder. NLCs prepared by emulsification and sonication technique using cetyl palmitate (the solid lipid, 2%) and oleic acid (as the liquid lipid, 2%) and Tween80 (surfactant, 0.25%) showed smaller particle sizes (of199.1 ±1.859 nm) and relatively high encapsulation efficiencies (72.143±1.8 %.) and optimum zeta potential (-38.27 ± 0.384 mV).A novel DPI formulations loaded with the NLC containing CIP(CIP-DPI), NAC (NAC-DPI) and CIP/NAC combination (CIP-NAC-DPI) were prepared by freeze drying method using Lactose (8%w/v) as a cryoprotectant. The DPI prepared showed good flow properties, prolonged drug release and improved stability. In-vitro drug release profile of CIP HCl in case of CIP-NLC showed 55 % release in 15 hours while it was 60% in case of CIP-NLC-DPI formulation. Similar is the case with NAC formulations. Following intratracheal administration in rat model, the percentage of CIP extracted from lungs was 70.2% in case on CIP-NAC-DPI against 49.8% for CIP-DPI and 42.1% for plain CIP. This amount is about 1.6 times increase in CIP in lungs by co-administration with NAC. However, no appreciable change in the residence time of CIP in lungs after intratracheal administration of CIP-DPI and combined DPI (CIP-NAC-DPI) was noted. Keywords: Ciprofloxacin Hydrochloride, N-Acetyl Cysteine, Nano lipid Carriers, Dry powder inhaler, cystic fibrosis.

    Fighting malaria in Madhya Pradesh (Central India): Are we loosing the battle?

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    Malaria control in Madhya Pradesh is complex because of vast tracts of forest with tribal settlement. Fifty four million individuals of various ethnic origins, accounting for 8% of the total population of India, contributed 30% of total malaria cases, 60% of total falciparum cases and 50% of malaria deaths in the country. Ambitious goals to control tribal malaria by launching "Enhanced Malaria Control Project" (EMCP) by the National Vector Borne Disease Control Programme (NVBDCP), with the World Bank assistance, became effective in September 1997 in eight north Indian states. Under EMCP, the programme used a broader mix of new interventions, i.e. insecticide-treated bed nets, spraying houses with effective residual insecticides, use of larvivorous fishes, rapid diagnostic tests for prompt diagnosis, treatment of the sick with effective radical treatment and increased public awareness and IEC. However, the challenge is to scale up these services

    Exercise-based rehabilitation for heart failure: systematic review and meta-analysis

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    This is the final version of the article. Available from BMJ Publishing Group via the DOI in this record.OBJECTIVE: To update the Cochrane systematic review of exercise-based cardiac rehabilitation (CR) for heart failure. METHODS: A systematic review and meta-analysis of randomised controlled trials was undertaken. MEDLINE, EMBASE and the Cochrane Library were searched up to January 2013. Trials with 6 or more months of follow-up were included if they assessed the effects of exercise interventions alone or as a component of comprehensive CR programme compared with no exercise control. RESULTS: 33 trials were included with 4740 participants predominantly with a reduced ejection fraction (<40%) and New York Heart Association class II and III. Compared with controls, while there was no difference in pooled all-cause mortality between exercise CR with follow-up to 1 year (risk ratio (RR) 0.93; 95% CI 0.69 to 1.27, p=0.67), there was a trend towards a reduction in trials with follow-up beyond 1 year (RR 0.88; 0.75 to 1.02, 0.09). Exercise CR reduced the risk of overall (RR 0.75; 0.62 to 0.92, 0.005) and heart failure-specific hospitalisation (RR 0.61; 0.46 to 0.80, 0.0004) and resulted in a clinically important improvement in the Minnesota Living with Heart Failure questionnaire (mean difference: -5.8 points, -9.2 to -2.4, 0.0007). Univariate meta-regression analysis showed that these benefits were independent of the type and dose of exercise CR, and trial duration of follow- up, quality or publication date. CONCLUSIONS: This updated Cochrane review shows that improvements in hospitalisation and health-related quality of life with exercise-based CR appear to be consistent across patients regardless of CR programme characteristics and may reduce mortality in the longer term. An individual participant data meta-analysis is needed to provide confirmatory evidence of the importance of patient subgroup and programme level characteristics (eg, exercise dose) on outcome.This publication presents independent research funded by the National Institute for Health Research (NIHR) under its Programme Grants for Applied Research Programme (Grant Reference Number RP-PG-1210-12004)

    Exercise-based rehabilitation for heart failure (review)

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    Meta-AnalysisReviewThis is the final version of the article. Available from the Cochrane Collaboration via the DOI in this record.BACKGROUND: Previous systematic reviews and meta-analyses consistently show the positive effect of exercise-based rehabilitation for heart failure (HF) on exercise capacity; however, the direction and magnitude of effects on health-related quality of life, mortality and hospital admissions in HF remain less certain. This is an update of a Cochrane systematic review previously published in 2010. OBJECTIVES: To determine the effectiveness of exercise-based rehabilitation on the mortality, hospitalisation admissions, morbidity and health-related quality of life for people with HF. Review inclusion criteria were extended to consider not only HF due to reduced ejection fraction (HFREF or 'systolic HF') but also HF due to preserved ejection fraction (HFPEF or 'diastolic HF'). SEARCH METHODS: We updated searches from the previous Cochrane review. We searched the Cochrane Central Register of Controlled Trials (CENTRAL) (Issue1, 2013) from January 2008 to January 2013. We also searched MEDLINE (Ovid), EMBASE (Ovid), CINAHL (EBSCO) and PsycINFO (Ovid) (January 2008 to January 2013). We handsearched Web of Science, bibliographies of systematic reviews and trial registers (Controlled-trials.com and Clinicaltrials.gov). SELECTION CRITERIA: Randomised controlled trials of exercise-based interventions with six months' follow-up or longer compared with a no exercise control that could include usual medical care. The study population comprised adults over 18 years and were broadened to include individuals with HFPEF in addition to HFREF. DATA COLLECTION AND ANALYSIS: Two review authors independently screened all identified references and rejected those that were clearly ineligible. We obtained full-text papers of potentially relevant trials. One review author independently extracted data from the included trials and assessed their risk of bias; a second review author checked data. MAIN RESULTS: We included 33 trials with 4740 people with HF predominantly with HFREF and New York Heart Association classes II and III. This latest update identified a further 14 trials. The overall risk of bias of included trials was moderate. There was no difference in pooled mortality between exercise-based rehabilitation versus no exercise control in trials with up to one-year follow-up (25 trials, 1871 participants: risk ratio (RR) 0.93; 95% confidence interval (CI) 0.69 to 1.27, fixed-effect analysis). However, there was trend towards a reduction in mortality with exercise in trials with more than one year of follow-up (6 trials, 2845 participants: RR 0.88; 95% CI 0.75 to 1.02, fixed-effect analysis). Compared with control, exercise training reduced the rate of overall (15 trials, 1328 participants: RR 0.75; 95% CI 0.62 to 0.92, fixed-effect analysis) and HF specific hospitalisation (12 trials, 1036 participants: RR 0.61; 95% CI 0.46 to 0.80, fixed-effect analysis). Exercise also resulted in a clinically important improvement superior in the Minnesota Living with Heart Failure questionnaire (13 trials, 1270 participants: mean difference: -5.8 points; 95% CI -9.2 to -2.4, random-effects analysis) - a disease specific health-related quality of life measure. However, levels of statistical heterogeneity across studies in this outcome were substantial. Univariate meta-regression analysis showed that these benefits were independent of the participant's age, gender, degree of left ventricular dysfunction, type of cardiac rehabilitation (exercise only vs. comprehensive rehabilitation), mean dose of exercise intervention, length of follow-up, overall risk of bias and trial publication date. Within these included studies, a small body of evidence supported exercise-based rehabilitation for HFPEF (three trials, undefined participant number) and when exclusively delivered in a home-based setting (5 trials, 521 participants). One study reported an additional mean healthcare cost in the training group compared with control of USD3227/person. Two studies indicated exercise-based rehabilitation to be a potentially cost-effective use of resources in terms of gain in quality-adjusted life years (QALYs) and life-years saved. AUTHORS' CONCLUSIONS: This updated Cochrane review supports the conclusions of the previous version of this review that, compared with no exercise control, exercise-based rehabilitation does not increase or decrease the risk of all-cause mortality in the short term (up to 12-months' follow-up) but reduces the risk of hospital admissions and confers important improvements in health-related quality of life. This update provides further evidence that exercise training may reduce mortality in the longer term and that the benefits of exercise training on appear to be consistent across participant characteristics including age, gender and HF severity. Further randomised controlled trials are needed to confirm the small body of evidence seen in this review for the benefit of exercise in HFPEF and when exercise rehabilitation is exclusively delivered in a home-based setting

    FORMULATION AND CHARACTERIZATION OF NANO LIPID CARRIER DRY POWDER INHALER CONTAINING CIPROFLOXACIN HYDROCHLORIDE AND N-ACETYL CYSTEINE

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    ABSTRACT Nanolipid carriers (NLC) are developed as an alternative to solid lipid nanocarriers in order to increase the payload and to prevent drug expulsion. In this study, NLCs loaded with ciprofloxacin hydrochloride (CIP) and N-Acetyl cysteine (NAC) were prepared and evaluated for its delivery to the lung for treatment of the symptoms of cystic fibrosis and chronic obstructive pulmonary disorder. NLCs prepared by emulsification and sonication technique using cetyl palmitate (the solid lipid, 2%) and oleic acid (as the liquid lipid, 2%) and Tween80 (surfactant, 0.25%) showed smaller particle sizes (of199.1 ±1.859 nm) and relatively high encapsulation efficiencies (72.143±1.8 %.) and optimum zeta potential (-38.27 ± 0.384 mV).A novel DPI formulations loaded with the NLC containing CIP(CIP-DPI), NAC (NAC-DPI) and CIP/NAC combination (CIP-NAC-DPI) were prepared by freeze drying method using Lactose (8%w/v) as a cryoprotectant. The DPI prepared showed good flow properties, prolonged drug release and improved stability. In-vitro drug release profile of CIP HCl in case of CIP-NLC showed 55 % release in 15 hours while it was 60% in case of CIP-NLC-DPI formulation. Similar is the case with NAC formulations. Following intratracheal administration in rat model, the percentage of CIP extracted from lungs was 70.2% in case on CIP-NAC-DPI against 49.8% for CIP-DPI and 42.1% for plain CIP. This amount is about 1.6 times increase in CIP in lungs by co-administration with NAC. However, no appreciable change in the residence time of CIP in lungs after intratracheal administration of CIP-DPI and combined DPI (CIP-NAC-DPI) was noted. Keywords: Ciprofloxacin Hydrochloride, N-Acetyl Cysteine, Nano lipid Carriers, Dry powder inhaler, cystic fibrosis.
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