Liposuction for removal of lipomas in 20 dogs     

Hunt GB  Wong J  Kuan S 《The Journal of small animal practice》2011,52(8):419-425

Objectives : To review the success rates for liposuction of lipomas in dogs, report early complications and medium‐term outcomes and formulate recommendations on the most appropriate candidates for liposuction. Methods : Retrospective study of 20 dogs with 76 lipomas diagnosed by cytology, in which dry liposuction was attempted. Case records were reviewed for number and size of the lipomas, efficacy of liposuction, frequency and types of complication and likelihood of recurrence. Results : Liposuction was successful in removing 73 of 76 lipomas (96%). Simple, encapsulated lipomas less than 15 cm in diameter were most easily removed, with minimal risk of complication. Giant lipomas contained fibrous trabeculae that hindered liposuction and resulted in poor fat retrieval. Giant lipomas were also associated with a high risk of bruising, haematoma and seroma, especially when inguinal in location. Regrowth was noted at follow‐up between 9 and 36 months in 28% of lipomas. Clinical Significance : Liposuction may be less invasive and more attractive to owners than conventional surgery for lipomas up to 15 cm in diameter. Liposuction is not recommended for infiltrative or giant inguinal lipomas. Regrowth can be expected in a high proportion of lipomas, which should be considered when choosing liposuction over conventional excision.  相似文献   

Genetic characterization and evolutionary analysis of 4 Newcastle disease virus isolate full genomes from waterbirds in South China during 2003-2007     

Cai S  Li J  Wong MT  Jiao P  Fan H  Liu D  Liao M  Jiang J  Shi M  Lam TT  Ren T  Leung FC 《Veterinary microbiology》2011,152(1-2):46-54

Complete genomes of four Newcastle disease virus (NDV) strains, isolated from ducks and wild birds in Guangdong province of China from 2003 to 2007, were sequenced and analyzed in this study. Pathogenicity tests in chicken embryos and chickens illustrate that D3 and R8 are lentogenic, and W4 and P4 are mesogenic strains. Phylogenetic analysis using all six genes provides a high resolution profile for genotype designation as genotype I for D3 and R8 strains and genotype VI for W4 and P4 strains. In addition, molecular dating based on different genes suggests that D3 and R8 diverged from their common ancestor at around 1998; W4 and P4 diverged from their common ancestor at around 1999. Subsequent selective pressure analysis displayed specific traits of genes evolution in all 4 strains since their divergence from the recent common ancestor. Furthermore, the geographic origins of 4 strains were deduced to be from Europe via two independent introduction events by phylogeographical analysis. This provides insights to the potential influence of waterfowl migration on NDV epidemiology.  相似文献   

Collaborative validation of the QuEChERS procedure for the determination of pesticides in food by LC-MS/MS     

Sack C  Smoker M  Chamkasem N  Thompson R  Satterfield G  Masse C  Mercer G  Neuhaus B  Cassias I  Chang E  Lin Y  Macmahon S  Wong J  Zhang K  Smith RE 《Journal of agricultural and food chemistry》2011,59(12):6383-6411

Seven FDA pesticide laboratories collaborated to develop and validate an LC-MS/MS method to determine 173 pesticides in <20 min. The average determination coefficient (r2) was >0.99 for all but two compounds tested. The limits of detection were <20 ng/mL for all compounds and <10 ng/mL for 363 of the 368 transitions reported. The method was used to determine pesticides in two AOAC sponsored proficiency samples. The LC-MS/MS determination was used for the analysis of oranges, carrots and spinach using the QuEChERS (Quick, Easy, Cheap, Effective, Rugged, Safe) method. Each matrix was fortified at 20, 100, 400, and 1000 ng/g. No false positive responses were detected in controls of the three matrices. 165 pesticides had recoveries between 70 and 130%, and 161 had minimum detection levels less than 10 ng/g. Recoveries of 169 compounds for the 1000 ng/g spikes were within 50-150%. A matrix effect study indicated all three matrices caused a small net suppressing effect, the most pronounced attributable to the citrus matrix. The procedure proved to be accurate, precise, linear, sensitive and rugged, and adds 100 pesticides to the scope of the FDA pesticide program.  相似文献   

A Novel Pretreatment Method of Lignocellulosic Material as Adsorbent and Kinetic Study of Dye Waste Adsorption     

Ling Wei Low  Tjoon Tow Teng  Anees Ahmad  Norhashimah Morad  Yee Shian Wong 《Water, air, and soil pollution》2011,218(1-4):293-306

Sulphuric acid-modified bagasse has been used as low-cost adsorbent for the removal of methylene blue (MB) dye from aqueous solution. In order to remove organic compounds that contribute to chemical oxygen demand (COD), pretreatment with thorough washing of adsorbent using boiling distilled water was performed instead of conventional washing using distilled water at room temperature only. This has resulted in the highest efficiency of color removal of 99.45% and COD reduction of 99.36% for MB dye solution at pH 9. Effects of initial pH, dye concentration, adsorbent dosage, temperature, and contact time have been studied. The adsorption of MB dye was pH dependent. Langmuir and Freundlich isotherm models were tested on the adsorption data. The kinetic experimental data were analyzed using pseudo-first order, pseudo-second order, and the intraparticle diffusion model in order to examine the adsorption mechanisms. The adsorption process followed the Langmuir isotherm as well as the Freundlich isotherm and pseudo-second-order kinetic model. The process was found to be endothermic in nature.  相似文献   

Production of a novel 9,12-dihydroxy-10(E)-eicosenoic acid from eicosenoic acid by Pseudomonas aeruginosa PR3     

Back KY  Sohn HR  Hou CT  Kim HR 《Journal of agricultural and food chemistry》2011,59(17):9652-9657

Microbial conversions of unsaturated fatty acids often generate polyhydroxy fatty acids, giving them new properties such as higher viscosity and reactivity. A bacterial strain Pseudomonas aeruginosa (PR3) has been intensively studied to produce mono-, di-, and trihydroxy fatty acids from different 9-cis-monoenoic fatty acids such as oleic acid, ricinoleic acid, and palmitoleic acid. However, from the results and the postulated similar metabolic pathways involved in these transformations, it was assumed that the enzyme system involved in transformation of the monoenoic fatty acid by strain PR3 could utilize fatty acids with different chain lengths and locations of the double bond. In this study was used as a substrate for bioconversion by strain PR3 eicosenoic acid (C20:1, ω-9) containing a singular cis double bond at different positions from the carboxyl end as oleic acid, and it was confirmed that PR3 could produce a novel 9,12-dihydroxy-10(E)-eicosenoic acid (DED) with 6.2% yield from eicosenoic acid. The structure of DED was confirmed using GC-MS, FTIR, and NMR analyses. DED production was maximized at 72 h after the substrate was added to the 24 h culture. Some other nutritional factors were also studied for optimal production of DED.  相似文献   

黑龙江省东部山区养渔业与森林生态环境的关系     

于丹  王玉玺 《东北林业大学学报》1989,17(1):105-110

为充分利用林区的自然资源,1986—1987年先后在帽儿山实验林场和依兰县先锋林场进行了养鱼试验,经过120天的饲养期,鱼产量在帽儿山为3094.5kg/ha,在先锋为1882.5kg/ha。 林区水资源丰富,水质稳定;水的pH值偏低,多为软水,水中营养盐类贫乏。用石灰清塘可使pH值由6.5升至8.3。施肥可促进浮游生物的增殖,藻类的优势种为隐藻,浮游动物为近邻剑水蚤。灯光诱虫既能使鲤鱼生长明显加快,又能除去部分森林害虫。林区水体污染较轻,故家养鱼类病害也较少。 在帽儿山、鱼的增重倍数为5.33,饵料系数为2.14;在先锋则分别为7.68和1.35。由于鲤鱼适应低温环境,所以长势较鲢鳙鱼为好。在帽儿山鲤鱼平均重0.31kg,在先锋则为0.40kg。 林区宜主养鲤鱼,也应放养草食和腐食性的鱼类,以充分利用水体中的生态位。  相似文献   

The Geographic Distribution,Venom Components,Pathology and Treatments of Stonefish (Synanceia spp.) Venom     

Silvia L. Saggiomo  Cadhla Firth  David T. Wilson  Jamie Seymour  John J. Miles  Yide Wong 《Marine drugs》2021,19(6)

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First report of the papaya mealybug,Paracoccus marginatus (Coccomorpha: Pseudococcidae), in Tahiti,French Polynesia     

L. Hartmann  J. Grandgirard  J. F. Germain  B. Hostachy  M. Wong 《EPPO Bulletin》2021,51(1):229-232

The papaya mealybug, Paracoccus marginatus Williams and Granara de Willing (Coccomorpha: Pseudococcidae), is a polyphagous pest that damages many tropical crops. It is native to Central America and spread to the Caribbean region and South America in the 1900s. Since then, it has accidentally been introduced to several islands in the Pacific region and some countries in Africa and Asia. The first record of this mealybug in Polynesia was in Hawaii, in 2004. This paper presents the first report of this pest in Tahiti (French Polynesia), where it was found in March 2017 on papaya (Carica papaya) and frangipani trees (Plumeria spp.). Its presence, which is mainly in the inhabited part of the island of Tahiti, suggests the recent introduction of the pest in French Polynesia. Several coccinellid predators have been found feeding on the mealybug in Tahiti: Cryptolaemus montrouzieri, Hyperaspis pantherina and Scymnus spp. None of its parasitoids have been found yet.  相似文献   

麦田小气候对第一代粘虫发生数量影响的研究   总被引：3，自引：0，他引：3  

李光博  王鸿  赵圣菊  曹淑琴  林振友 《植物保护学报》1963,2(1):57-62

麦田小气候因子对粘虫的发生有一定影响。栽培技术及小麦生长情况不同农田小气候特点各有不同,因而影响粘虫发生数量及发育进度的变化很大;禾苗生长愈茂密,小气候相对湿度愈高,温度愈低。此种条件下,粘虫发生数量较大而发育进度较慢。杂草丛生的农田粘虫发生即多,被害严重,这可能也是受小气候因子的影响所致。预测预报时应注意这些规律。  相似文献   

花生属植物酯酶同工酶的研究     

周蓉  段遒雄  翁跃进 《中国油料作物学报》1990,(3)

采用聚丙烯酰胺凝胶电泳的方法,对花生属植物10个栽培种和10个野生种的酯酶同工酶谱带进行测定分析。根据酶谱的差异,栽培种花生与花生区组野生种的平均相似值为12.93％,与其他区组相比其相似值高。表明两者间亲缘关系较近,从生化测定证实了花生区组的野生种是栽培种的近缘祖先的推断。另外,结果表明不同类型的栽培种与花生区组的各个野生种的亲缘关系也存在差异,其中以珍珠豆型品种与A.durenesis的关系最近。  相似文献