储粮中害虫尿酸含量的测定     

程惊秋  范京安 《粮食储藏》1991,20(6):19-20

昆虫体内含氮代谢废物主要以尿酸的形式随粪便排泄,储藏粮食中害虫的粪便则混合于粮食中。若能对储粮的尿酸含量进行测定,则可确定其被污染程度和间接估计害虫的为害情况。国外专家以尿酸含量作为粮食品质的指标之一,但测定方法因人而异,尚无详细的测定技术介绍。笔者采用磷酸三钠法测定了受麦蛾为害后储存麦粒的尿酸含量,方法简单易行、快速灵敏,在有分光光度计或光电比色计的条件下即可进行。  相似文献   

血脂、总胆红素、尿酸及超敏C反应蛋白联合检测在冠心病诊断中的应用价值     

《湛江医学院学报》2021,39(3)

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尿酸结石致急性输尿管梗阻的处理     

黄木春  李普云  柳建军  许志坚 《湛江医学院学报》2002,20(3):181-181,185

目的：总结尿酸结石引起总性输尿管梗阻的处理经验。方法：76例分为2组：肾绞痛组46例，其中20例采用保守治疗，无效者行逆行括管引流，另外26例急诊行逆行括管引流；急性肾衰组30例急诊行逆行括管引流。引流3—5d后，经输尿管导管持续滴入12.5g／L碳酸氢钠溶液，连续3—5d。结果：在肾绞痛组中保守治疗结合逆行括管引流与急诊行逆行括管引流组的疗效差异无显著性(P＞0．05)；急性肾衰组括管引流后血清肌酐显著下降(P＜0．01)。结论：肾绞痛者可先保守治疗，无效时行逆行括管引流；急性肾衰者首选行逆行插管引流。  相似文献   

一例北京犬膀胱结石的手术治疗报告   总被引：1，自引：0，他引：1  

刘焕奇 《中国动物检疫》2009,26(8):58-58,60

犬尿结石是临床上经常遇到的一种严重的泌尿系统疾病,根据其分布位置分为肾结石、输尿管结石、膀胱结石、尿道结石,其临床病理因结石的大小、形状以及个体和品种差异而有所不同。本病多见于老年犬、小型犬,巴哥犬、拉萨犬、贵宾犬、北京  相似文献   

萆薢中薯蓣皂甙的分离及其对鸡痛风的作用     

童德文  耿果霞  赵宝玉 《西北农林科技大学学报(自然科学版)》1999,27(6):108-112

从萆廣中分离出一种白色针状结晶,经ＴＬＣ和ＭＰ鉴定为薯蓣皂甙。萆薢粉经乙醇提取后制成水剂,比色法测定薯蓣皂甙质量浓度为４．７８５ ７ ｇ·Ｌ－ １．将３０ 只痛风鸡随机分成３ 组,每组１０ 只,第Ⅰ组为对照;第Ⅱ组每日用肾肿清按１０ ｇ·ｋｇ－ １的比例拌料饲喂;第Ⅲ组每日饮水中添加５２．５ ｍ Ｌ皂甙水剂。每间隔３ ｄ 颈静脉采血３～５ ｍ Ｌ／只,分别测定血液尿酸、血清钙、血清磷的含量。结果表明,第Ⅱ,Ⅲ组血液尿酸含量比第Ⅰ组明显降低,差异显著（Ｐ＜ ０．０５）;第Ⅱ,Ⅲ组血清钙和血清磷含量与第Ⅰ组差异不显著（Ｐ＞ ０．０５）;第Ⅱ组血液尿酸、血清钙和血清磷含量与第Ⅲ组差异不显著（Ｐ＞ ０．０５）。第Ⅱ组和第Ⅲ组治愈率分别为６０％ 和８０％ ．  相似文献   

应激条件下日粮VA水平对蛋鸡某些血液生化指标的影响   总被引：4，自引：0，他引：4  

明庆磊  程超  朱必才  胡孝忠 《河南农业科学》2004,(4):62-65

试验研究了应激条件 (高温和免疫接种 )下VA 添加水平 ( 30 0 0 ,75 0 0和 1 2 0 0 0IU/kg)对蛋鸡血液中葡萄糖、尿酸含量和磷酸肌酸激酶活性的影响。结果表明 :不同的VA 添加水平对血液中葡萄糖、尿酸含量和磷酸肌酸激酶活性影响极显著 ;在 3个添加水平组中 ,1 2 0 0 0IU/kgVA 添加水平组效果最好 ,有利于维持机体的代谢平衡 ,缓解了应激。  相似文献   

安化黑茶降尿酸作用及其机理     

龚雨顺  彭雨轩  刘仲华 《中国茶叶》2023,(4):1-5

高尿酸血症是由机体尿酸产生过多和排泄减少引发的血尿酸增高的疾病，与心脑血管疾病和脏器损伤密切相关。安化黑茶及其活性成分已被证实在改善高尿酸血症方面有效果，能通过抑制机体尿酸调节的关键酶、调节尿酸转运蛋白的表达发挥降尿酸作用。文章系统阐述了安化黑茶的降尿酸作用及机制，旨在为科学饮茶调控尿酸水平提供理论依据，为降尿酸功能茶制品开发提供研究思路。  相似文献   

三聚氰胺对蛋鸡的亚慢性毒性试验     

于树涛  赵才兵  周荣柱  朱连勤  朱风华 《中国饲料》2023,1(9):51-57

为研究三聚氰胺对蛋鸡的亚慢性毒性，确定三聚氰胺对蛋鸡的无可见有害作用水平，选择200只220日龄海兰褐蛋鸡，随机分成5组，每组4个重复，每个重复10只，第1组为对照组，第2～5组为试验组，试验组蛋鸡三聚氰胺每天染毒剂量分别为8.96、26.89、80.66 mg/（kg·bw）和241.99 mg/（kg·bw），加入饲料中自由摄入，试验期90 d。结果显示：试验至90 d，第5组平均蛋重显著低于第1和第2组，分别降低8.48%和8.78%(P <0.05)。第5组料蛋比显著高于第1和第2组，分别提高7.47%和7.47%(P <0.05)；第4组、第5组产蛋率显著低于第1组，分别降低6.70%和8.93%(P <0.05)。第5组肾脏、肝脏指数极显著高于第1组和第2组（P <0.01）。试验至30、60、90 d，第5组蛋鸡血浆尿酸（UA）、肌酐（CRE）含量和丙氨酸转氨酶（ALT）、天门冬氨酸（AST）活性极显著高于第1～4组（P <0.01）。第2组、第3组与对照组蛋鸡产蛋率、蛋重、料蛋比以及UA、CRE含量和ALT、AST活性差异无显著意义（P&g...  相似文献   

MCC950 Improves Growth Performance, Ｕric Acid Metabolism and Kidney Injury of Goslings Fed High Protein Diet by Inhibiting Nucleotide Binding Oligomerization Domain-Like Receptor 3 Inflammasome北大核心CSCD     

朱道仙  刘莉  王璟琨  郝福星  吴植  卢劲晔 《动物营养学报》2023,(1):277-286

The aim of this study was to evaluate the effects of MCC950 on growth performance, uric acid metabolism, serum inflammatory factor contents and kidney injury of goslings a fed high protein diet, and explore the potential mechanism of nucleotide binding oligomerization domain-like receptor 3 (NLRP3) / cysteine aspartase-1 (Caspase-1) signaling pathway in gosling gout. A total of 120 Yangzhou goslings of 1-day-old were randomly divided into 3 groups, which were control group, high protein group (HP group) and high protein+ MCC950 group (HP+MCC950 group), with 5 replicates in each group and 8 goslings in each replicate. The control group was fed a normal protein diet with 16.5% crude protein, and the HP group and HP+MCC950 group were fed a high protein diet with 24.0% crude protein. The HP+MCC950 group was intraperitoneally injected with MCC950 every 3 days at a dose of 10 mg / kg BW, and the other two groups were injected with the same amount of normal saline. The experiment lasted for 15 days. The results showed as follows: 1) compared with the control group, the average body weight of goslings at 15 days of age in the HP group was significantly decreased (P<0.05); the serum contents of uric acid (UA), creatinine (Cr), urea nitrogen (UN), C-reactive protein (CRP), interleukin-1β (IL-1β), interleukin 18 (IL-18), interleukin 6 (IL-6), tumor necrosis factor α (TNF-α) and transforming growth factor β1 (TGF-β1) in the HP group were significantly increased (P<0.05); the mRNA relative expression levels of NLRP3, Caspase-1, IL-1β and IL-18 and the protein relative expression levels of NLRP3, Caspase-1 and IL-1β in kidney tissues in the HP group were significantly increased (P<0.05). 2) Compared with the HP group, the average body weight of goslings at 10 and 15 days of age in the HP+MCC950 group was significantly increased (P<0.05); the serum contents of UA, Cr, UN, CRP, IL-1β, IL-18, IL-6, TNF-α and TGF-β1 were significantly decreased (P<0.05), while the mRNA relative expression levels of NLRP3, Caspase-1, IL-1β and IL-18 and the protein relative expression levels of NLRP3, Caspase-1 and IL-1β in kidney tissues in the HP+MCC950 group were significantly decreased (P< 0.05). 3) Histological findings showed that the renal tubules of goslings were dilated, and vacuolar degeneration and necrosis occurred in the HP group, while the structure of renal tubules was relatively normal in the HP+MCC950 group. The urate deposition area in kidney tissues of goslings in the HP group was significantly larger than that in the control group (P<0.05), and which in the HP+MCC950 group was significantly smaller than that in the HP group (P<0.05). Moreover, the urate deposition area in kidney tissues of goslings was significantly positively correlated with the protein relative expression level of NLRP3 (r = 0.681, P<0.05). In conclusion, MCC950 can promote the growth of goslings fed a high protein diet and reduce the serum uric acid content, which may be related to the reduction of inflammatory response and kidney injury through its inhibition of NLRP3 / Caspase-1 signaling pathway. © 2023 Authors. All rights reserved.  相似文献   

乳酸菌发酵中药对大鼠痛风症状的影响研究北大核心     

陈妍李市场杜莹瑞胡锋阳丁慧龚明贵 《饲料研究》2023,(10):79-84

试验以马齿苋、苦荞等混合植物为底物,探讨中药发酵液成分对痛风性关节炎大鼠血清生化指标及肾脏、踝关节滑膜组织病理形态的影响。采用UPLC-MC/MC技术对中药发酵液的成分分析,选取60只雄性昆明大鼠随机分为6组,每组10只大鼠。空白对照组大鼠饲喂正常饲料,其余组全部饲喂2%氧嗪酸钾联合12%酵母膏特殊饲料进行造模。4周后,空白对照组和模型对照组灌胃生理盐水,低浓度发酵液组、中浓度发酵液组、高浓度发酵液组分别灌胃20%、40%、60%中药发酵液,灌胃量为16 mL/kg。试验期3 w。结果显示,中药发酵液中黄酮类化合物包括55种,相对含量占15.39%。在动物试验中,与模型对照组相比,高浓度发酵液组大鼠血清尿酸(UA)、尿素氮(BUN)、肌酐(Cr)和肿瘤坏死因子-α (TNF-α)含量均极显著降低(P<0.01)。肾脏和踝关节滑膜组织病理切片显示,中药发酵液可改善肾组织损伤和痛风性关节炎大鼠脚踝炎症。研究表明,中药发酵液对由高尿酸引起的肾损伤具有一定的保护作用,对痛风性关节炎大鼠具有一定的消炎作用,以高浓度效果最为明显。  相似文献