RESEARCH PAPER: Comparison of an implantable telemetry device and an oscillometric monitor for measurement of blood pressure in anaesthetized and unrestrained green iguanas (Iguana iguana)     

Sathya K Chinnadurai  Ryan DeVoe  Amie Koenig  Nadia Gadsen  Amanda Ardente  Stephen J Divers 《Veterinary anaesthesia and analgesia》2010,37(5):434-439

Objective The objective of this study was to compare an implanted direct blood pressure monitor and a non‐invasive oscillometric unit for use in anesthetized and awake green iguanas. Study design Prospective experimental trial. Animals Four male and four female adult green iguanas (Iguana iguana) weighing 1833 ± 534 g. Methods For each animal, the carotid artery was surgically exposed and the catheter tip of the pressure transducer was placed in the aortic arch. Non‐invasive blood pressure was measured using a cuff over the left femoral region. Pulse rate, respiratory rate and arterial blood pressure (ABP) measurements were taken every 5 minutes. Direct ABP measurements consisted of recording numerical values and graphic output. Simultaneous direct and indirect measurements were repeated in awake animals. Results The oscillometric device failed to provide a reading in over 80% of attempts, and failed to provide readings that correlated with direct measurements. The implanted direct transducer was capable of detecting blood pressures throughout all ABP ranges examined. Conclusions The implantable transducer was a reliable means of determining blood pressure in this study, while the oscillometric device was unreliable and often failed to provide any reading. Clinical relevance We do not recommend using the oscillometric device as described in a research or clinical setting for green iguanas. The advantages of an implantable device include the ability to monitor awake and anesthetized subjects remotely and continuously. These monitors are small, biocompatible and function across a wide range of ABP.  相似文献   

Resistance to polyoxin AL and other fungicides in Botrytis cinerea collected from sweet basil crops in Israel   总被引：1，自引：0，他引：1  

Mukhiddin Mamiev  Nadia Korolev  Yigal Elad 《European journal of plant pathology / European Foundation for Plant Pathology》2013,137(1):79-91

A total of 568 B. cinerea isolates were collected from diseased sweet basil plants and the air in 10 sweet basil greenhouses. Mycelial growth tests were used to evaluate the sensitivity of these isolates to benomyl, fenhexamid, iprodione, polyoxin AL and pyrimethanil. EC₅₀ values for polyoxin, the main botryticide on sweet basil in Israel, ranged from 0.4 to 6.5 μg ml^?1 and had a bimodal distribution; the EC₅₀ values for sensitive isolates ranged from 0.4 to 1.5 μg ml^?1 and the EC₅₀ values for low-level resistant isolates ranged from 4 to 6.5 μg ml^?1. Among populations that had not been exposed to polyoxin treatments, 20 to 35 % of the collected isolates were low-level resistant for polyoxin. Polyoxin treatments in an experimental greenhouse shifted the equilibrium in favour of low-level resistant isolates, and the change occurred rapidly: from a frequency of 20 % low-level resistant isolates in the population that had never been treated with polyoxin to a frequency of 72 % after a few treatments over two seasons. Prolonged use of polyoxin in Israeli basil crops (in some sites for more than 10 years) does not appear to have led to the development of high-level resistance, but low-level resistant isolates were found in commercial greenhouses with the frequency of up to 73 %. High-level resistance to benzimidazoles was common (60 to 80 % of isolates) in greenhouses with a history of benzimidazole treatments; whereas 15–25 % of the isolates from greenhouses in which fungicides were not used were resistant. Low-level resistance to dicarboximides was fairly widespread (frequency of 30 to 80 % depending on the greenhouse) and a few cases of moderate resistance to dicarboximides were also noted (frequency of 0 to 9 %). Neither high- nor low-level resistance to anilinopyrimidines was common in sweet basil commercial greenhouses (0 to 7 %). However, 34 % of the isolates were strongly resistant in the experimental greenhouse, following a few treatments with anilinopyrimidine fungicides during the previous season. Before those treatments, the proportion of anilinopyrimidines resistant isolates had been 1 %. About 3 % of the isolates exhibited low-level resistance to fenhexamid and no isolates were found to be strongly resistant to fenhexamid. Low-level resistance to one fungicide was often associated with low-level resistances to other fungicides. Thirty-two phenotypes exhibiting resistance to one or more of the tested fungicides were noted among B. cinerea isolates. Resistant isolates showed similar or reduced fitness parameters in comparison to wild-type isolates.  相似文献   

Biochemical and histological effects of gibberellic acid on Locusta migratoria migratoria fifth instar larvae     

Khemais Abdellaoui  Monia Ben Halima-Kamel  Fatma Acheuk  Noureddine Soltani  Nadia Aribi  Mohamed HabibBen Hamouda 《Pesticide biochemistry and physiology》2013

Experiments were conducted to assess the effect of gibberellic acid (GA₃), a plant growth regulator, on Locusta migratoria migratoria fifth instar larvae. Newly emerged larvae were exposed to various concentrations of GA₃ administered by topical application or by forced ingestion. Results showed that treated insects exhibited toxic symptoms with a dose-dependent mortality. GA₃ toxicity was also demonstrated by perturbation of the moult processes. In fact, we noted that treated insects present exuviations difficulties due to the impossibility to reject the old integuments causing mortality in the 5th instar larvae. Histological study of proventriculus revealed alterations in the epithelial cells and absence of apolysis phenomenon. Data also showed that GA₃ induced significant quantitative variation of haemolymph metabolites. These changes result in a significant decrease in the total concentration of proteins and carbohydrates and an increase in the total concentration of haemolymph lipids.  相似文献   

Spatial Distribution and Temporal Trends of Polycyclic Aromatic Hydrocarbons (PAHs) in Sediments from Lake Maryut, Alexandria, Egypt   总被引：2，自引：0，他引：2  

Assem Omar. Barakat  Alaa Mostafa  Terry L. Wade  Stephen T. Sweet  Nadia B. El Sayed 《Water, air, and soil pollution》2011,218(1-4):63-80

Surface and core sediments from Lake Maryut, Egypt, one of the most polluted lakes in Egypt, were analyzed for polycyclic aromatic hydrocarbons (PAHs) using gas chromatography?Cmass spectrometry. This investigation represents the first extensive study of the distribution and sources of PAHs in sediments from Lake Maryut. The total PAHs concentrations (sum of 39 PAH compounds) in surface sediments varied greatly depending on the sampling location and ranged from 106 to 57,800 ng/g dry weight with a mean concentration of 6,950 ng/g. The most polluted areas are distributed in areas which are mainly influenced by municipal sewage and industrial effluent discharges, suggesting a direct influence of these sources on the pollutant distribution patterns. PAH concentrations were one to two orders of magnitude higher in comparison with those reported for riverine/estuaries systems around the world. Molecular indices, such as pyrogenic index (PI), methylphenanthrenes to phenanthrene ratio, HMW_PAH/LMW_PAH, A-PAHs/P-PAHs, FL/FL?+?PY, BaP/BaP?+?C, IP/IP?+?BgP, and Per/??(penta-aromatics) were calculated to evaluate different hydrocarbon origins and their relative importance. In general, sediments from the main basin and northwest basin of Lake Maryut showed the highest PAH concentrations with petrogenic signatures, indicating major sources of petrogenic PAHs in the city. On the other hand, lower levels of PAHs with a pyrogenic signature were widely recorded in areas that are distant from anthropogenic sources. At other locations, both petrogenic and pyrogenic inputs were significant. The concentrations of perylene relative to the penta-aromatic isomers are dominant especially in locations associated with terrestrial inputs and in the deepest core sediments, indicating diagenetic origin for the presence of perylene. Temporal trends of PAH concentrations in both cores sediments were influenced by input pathways and followed the economic development and the environmental policies of the Egyptian Government in the last 15 years. Finally, PAH levels in sediments were compared with Sediments Quality Guidelines (effects range median?Ceffects range low) for evaluation probable toxic effects on organism. Results suggest an ecotoxicological risk for benthic organisms mainly in the main basin area, where high concentrations of PAHs were found in sediments influenced by anthropogenic activities.  相似文献   

Chitosan induces delayed grapevine defense mechanisms and protects grapevine against Botrytis cinerea     

De Bona  Gicele Sbardelotto  Vincenzi  Simone  De Marchi  Fabiola  Angelini  Elisa  Bertazzon  Nadia 《植物病害和植物保护杂志》2021,128(3):715-724

Journal of Plant Diseases and Protection - In the present study, a commercial chitosan soluble in acid solution and obtained from shrimp shell waste, with a molecular weight of 173 kDa and...  相似文献   

Diflubenzuron and oogenesis in the codling moth,Cydia pomonella (L.)     

Noureddine Soltani  Nadia Soltani-Mazouni 《Pest management science》1992,34(3):257-261

Diflubenzuron, topically applied (0·5 μg insect^?-1) to Cydia pomonella (L.) at pupal ecdysis disturbed growth and development of oocytes. It delayed the adult ecdysis and caused a decrease in both thickness of the follicular epithelium and the size of the basal oocyte during the pupal development. On the other hand, the size of basal oocytes, the protein content per ovary and the number of oocytes per ovary recorded in newly emerged adults were significantly reduced after diflubenzuron treatment. These results, together with observations in several other species, indicate that the reduction in fecundity and egg viability is probably due to interference of diflubenzuron with the vitellogenesis process.  相似文献   

Crimean–Congo Haemorrhagic Fever: Case study analysis of a sporadic outbreak from Chakwal,Pakistan     

Tahir Yaqub  Muhammad Oneeb  Nadia Mukhtar  Zarfishan Tahir  Furqan Shahid  Sabir Subhan  Mo Salman 《Zoonoses and public health》2019,66(7):871-873

Crimean–Congo Haemorrhagic Fever (CCHF) is a deadly viral zoonotic disease, which is endemic in Pakistan. We report a case study analysis of three cases of CCHF which occurred in Chakwal, Pakistan in 2016. The disease was suspected in three patients exhibiting clinical symptoms suggestive of CCHF; two of the three patients died. The presence of CCHF was detected by seroconversion (IgG) from the surviving patient, while the antigen was detected in Hyalomma ticks originating from animals in the vicinity. This report indicates increase threat emergence of CCHF in Pakistan and highlights its zoonotic implications requiring immediate interventions under the “One‐Health” concept.  相似文献   

Evaluation of a low‐dose desoxycorticosterone pivalate treatment protocol for long‐term management of dogs with primary hypoadrenocorticism     

Nadia S. Sieber‐Ruckstuhl  Claudia E. Reusch  Nathalie Hofer‐Inteeworn  Claudia Kuemmerle‐Fraune  Claudia Müller  Regina Hofmann‐Lehmann  Felicitas S. Boretti 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2019,33(3):1266-1271

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Bio-guided isolation of the cytotoxic corytenchine and isocoreximine from roots of Annona cherimolia     

Martínez-Vázquez M  De la Cueva Lozano DG  Estrada-Reyes R  González-Lugo NM  Ramírez Apan T  Heinze G 《Fitoterapia》2005,76(7-8):733-736

The roots of Annona cherimolia have been shown to contain the known tetrahydroprotoberberine alkaloids corytenchine (1) and isocoreximine (2), investigated for their cytotoxic properties.  相似文献   

Eating out of home and its correlates in 10 European countries. The European Prospective Investigation into Cancer and Nutrition (EPIC) study     

Orfanos P  Naska A  Trichopoulos D  Slimani N  Ferrari P  van Bakel M  Deharveng G  Overvad K  Tjønneland A  Halkjaer J  Santucci de Magistris M  Tumino R  Pala V  Sacerdote C  Masala G  Skeie G  Engeset D  Lund E  Jakszyn P  Barricarte A  Chirlaque MD  Martinez-Garcia C  Amiano P  Quirós JR  Bingham S  Welch A  Spencer EA  Key TJ  Rohrmann S  Linseisen J  Ray J  Boeing H  Peeters PH  Bueno-de-Mesquita HB  Ocke M  Johansson I  Johansson G  Berglund G  Manjer J  Boutron-Ruault MC  Touvier M  Clavel-Chapelon F  Trichopoulou A 《Public health nutrition》2007,10(12):1515-1525

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