12种杀菌剂防治枣缩果病田间药效试验报告

１２种杀菌剂田间防治枣缩果病试验结果表明：８５％枣病克星可湿性粉为首选药剂,喷药防治区病果率为１．６３％,其次可选用大生Ｍ－４５,退菌特＋甲基托布津,多菌灵,植保膜＋代森锰锌,杜邦福星,喷药防治区病果率分别为３．６３％,３．３８％,３．７５％,４．５％,５．７５％,代森锰锌,氯乳铜,甲基托布津,代森锰锌＋多菌灵,枣缩果宁２号,波尔多液则对枣缩果病防效较差或基本无效。     

23例多系统萎缩的临床与影像学分析

目的：探讨多系统萎缩（ＭＳＡ）的影像学特征与临床表现的相关性,为临床诊断提供依据。方法：对２３例临床资料进行回顾性分析。结果：根据临床资料及影像结果分为３类型。（１）１６例橄榄体桥小脑萎缩（ＯＰＣＡ）中,以小脑共济失调为主者１０例,脑的ＣＴ或ＭＲＩ可见桥脑、橄榄体、小脑萎缩明显,可伴大脑等部位萎缩;（２）３例Ｓｈｙ－Ｄｒａｇｅｒ综合征（ＳＤＳ）,以植物神经功能紊乱为主要表现者２例,１例误诊为多发脑梗塞,脑ＭＲＩ壳核Ｔ２低信号改变;（３）４例纹状体－黑质变性（ＳＮＤ）首发症状均为锥体外系表现而误诊为帕金森病。脑ＭＲＩ示壳核可有Ｔ１低Ｔ２高信号改变。结论：ＭＳＡ是一组神经系统多部位变性综合征,各型早期各具特点,其中ＳＤＳ、ＳＮＤ较易误诊;ＭＲＩ等有关检测技术对发病机理和诊断分型等方面有较肯定的意义     

Molecular tracing confirms that infection with infectious pancreatic necrosis virus follows the smolt from hatchery to grow‐out farm

Infectious pancreatic necrosis (IPN) is an important restraint to production of salmonids in aquaculture globally. In order to implement efficacious mitigation strategies for control of this disease, it is important to understand infection routes under current production systems. IPN virus has been shown to be transmitted vertically in Rainbow trout, from broodstock to fingerlings in hatcheries, and there is circumstantial evidence suggesting that vertical transmission can also occur in Atlantic salmon, in addition to horizontal transmission between grow‐out fish in farms. In this study, we show that the smolt carries infection with IPN from hatchery to the marine farm. We do this by comparing sequences from fish groups taken both in hatcheries and on corresponding marine grow‐out farms. We use statistical analysis to prove that sequences obtained from the same fish group in both hatchery and marine farm are more similar than sequences obtained from random fish groups on hatcheries and marine farms.     

Characteristics and outcomes in surgical management of severe acute pancreatitis: 37 dogs (2001–2007)

Objective – Describe clinical characteristics and outcomes associated with canine patients undergoing surgical intervention for treatment of acute pancreatitis.
Design – Retrospective outcome study from 2001 to 2007.
Animals – Thirty-seven dogs.
Interventions – None.
Measurements and Main Results – The following data were collected for dogs who underwent surgical intervention in the course of treatment for severe acute pancreatitis: preoperative clinicopathologic and physical data, ultrasonographic findings, surgical procedure detail, histopathologic findings, and transfusion requirements. The survival rate was 80.8% in dogs with extrahepatic biliary obstruction, 64.3% in dogs undergoing necrosectomy, and 40.6% with pancreatic abscess. Overall survival was 63.6%. Surgical complications included intraoperative and postoperative hemorrhage in 12 dogs, postoperative development of diabetes mellitus in 3 dogs, exocrine pancreatic insufficiency in 1 dog, and bacterial peritonitis in 2 dogs.
Conclusion – Surgical intervention and aggressive postoperative care may be pursued in select dogs with severe acute pancreatitis. In dogs with extrahepatic biliary obstruction secondary to acute pancreatitis, surgical intervention may be associated with a good prognosis whereas dogs with pancreatic abscess formation may have a more guarded prognosis.     

Pancreatic adenocarcinoma in a donkey. Use of laparoscopy to aid the diagnosis

Pancreatic adenocarcinoma was diagnosed in a 15‐year‐old donkey that presented with signs of chronic laminitis, weight loss and chronic colic. An intra‐abdominal mass was identified by exploratory laparoscopy, and this was subsequently confirmed to be a pancreatic adenocarcinoma at post mortem examination. Unlike most previously reported cases of pancreatic disease in equids, this donkey had no clinicopathological evidence of an associated hepatopathy.     

Studies on the inactivation of selected viral and bacterial fish pathogens at high pH for waste disposal purposes

This study investigated the use of alkaline hydrolysis at ambient temperature for inactivation of selected fish pathogens in fish tissues under conditions approximating those that are likely to be found in the aquaculture industry. Infectious salmon anaemia virus (ISAV) and Lactococcus garvieae have been determined in a previous study to be the most resistant virus and bacteria to pH 12 from a wide range of viruses and bacteria tested. They were spiked at high titres into fish extracts that were then treated with 1 m sodium hydroxide (NaOH). Viable L. garvieae was not detected in the treated fish extract after 1 h, and ISAV was not detected after 24‐h exposure. Field mortalities of Atlantic salmon, Salmo salar L., caused by infectious pancreatic necrosis virus were treated by alkaline hydrolysis at ambient temperature. The macerated fish mortalities contained a high titre of virus (3.38 × 10⁸ TCID₅₀ g^?1) that was reduced to approximately 2.2 × 10³ TCID₅₀ g^?1 after 24‐h exposure to NaOH, and virus was not detected after exposure for 48 h. The results suggest that alkaline hydrolysis at ambient temperature has potential as a biosecure treatment method for fish by‐products containing fish pathogens.     

胰腺癌人源噬菌体单链抗体库的构建及初步筛选

提取胰腺癌患者的外周淋巴细胞总RNA,以RT-PCR技术分别扩增出人源抗体H链和L链的可变区基因,采用SOE-PCR法将VH和VL片段随机拼接成scFv片段,然后将scFv片段克隆至pCANTAB5E载体,并电转化至感受态TG1菌,经辅助噬菌体M13K07拯救,获得胰腺癌人源噬菌体单链抗体库。结果表明,从外周血淋巴细胞中获取可变区基因,利用噬菌体抗体库技术制备人源抗胰腺癌单链抗体的策略是可行的。