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1.
血清谷丙转氨酶(ALT)广泛存在于机体内各器官组织中。在肝、心、肾、胰、脑、肺、肌肉、骨骼等器官组织细胞中,都含有不同的ALT,但以肝脏含量为最多。正常人肝脏组织的含量为43800单位/g(kahen法)。  相似文献   

2.
目的 对来源于沙蚕(Perinereis aibuhitensis)的硫酸多糖进行结构表征和抗凝血活性研究。方法 采用两步酶解法从沙蚕中提取多糖;利用强阴离子交换色谱和凝胶渗透色谱对粗多糖进行分离纯化;通过离子色谱法、高效液相色谱法(HPLC)、高效凝胶渗透色谱-多角度激光光散射仪(HPGPC-MALLs)联用技术、硫酸软骨素酶ABC酶法分析、核磁共振氢谱(1H-NMR)等方法,研究纯化多糖的化学组成和结构特征;通过测定APTT、PT和TT评价其体外抗凝血活性。结果 从沙蚕中纯化得到了2种硫酸多糖组分PAE1和PAE2,二者的总糖含量、蛋白含量、硫酸根含量及分子量分别为65.21%、14.31%、0.33%、24.49 kDa和53.08%、11.33%、13.46%、57.39 kDa。PAE1主要由Gal(43.58%)、Glc(32.63%)、GalN(8.71%)、GlcA(7.66%)及少量Fuc(2.77%)组成;PAE2主链为硫酸软骨素C(GlcAβ1→3GalNAc6S),支链主要由Fuc(35.33%)、Gal(20.9%)和Glc(8.98%)构成。PAE1和PAE2均可明显延长APTT和PT。结论 首次从沙蚕中提取、分离得到2种硫酸多糖,其中PAE2是1种含有Fuc、Gal与Glc支链并具有明显的体外抗凝血活性的结构新颖的类硫酸软骨素,该发现为沙蚕硫酸多糖的开发提供了依据。  相似文献   

3.
众所周知,肝脏是脂肪代谢的重要器官,在正常情况下,肝脏只含有少量脂肪,约占肝脏重量4%-5%,某种情况下肝脏的脂肪含量增加,当其脂肪含量超过肝脏重量的10%时即为脂肪肝,表现为肝细胞浆内脂肪堆积。脂肪肝的临床表现:多数病人无明显症状,少数可有不同程度的食欲减退、恶心、腹胀、肝区不适等。本文通过应用彩色多普勒超声对受检者脂肪肝进行分度,研究其与肝功能改变的关系;分析病因,为临床预防及治疗脂肪肝提供依据。  相似文献   

4.
安神补心丸中丹参酮ⅡA含量测定   总被引:3,自引:0,他引:3  
安神补心丸中丹参是主要原料之一。丹参中含有丹参酮ⅡA,丹参酮ⅡB等。我们采用紫外光光度法测定丹参的有效成分丹参酮ⅡA的含量,以此为指标进行安神补心丸的含量测定。回收率6次平均值为99.07%,变异系数为0.01%。测定6分样品含量,变异系数均在0.74%以下。  相似文献   

5.
沙蚕提取物的抗氧化活性研究   总被引:1,自引:0,他引:1  
目的探讨沙蚕提取物的抗氧化活性。方法采用DPPH法观察沙蚕提取物的抗氧化活性,通过Sephadex LH-20凝胶过滤,对沙蚕提取物中的抗氧化物质进行了初步分离纯化。结果与结论沙蚕提取物具有较强的清除自由基(DPPH)的能力,通过定性分析方法确定该物质为一类小分子量的多肽类物质。  相似文献   

6.
对我国渤海湾产的罗氏海盘车的无机元素、氨基酸及蛋白质等成分进行了分析检测。结果显示,其壳中不仅含有大量钙、磷、镁、铯、锶,还含有一定量人体必要的锌、锡、锰、铁、锗、铜等微量元素;氨基酸总含量为17.04%,其中必要氨基酸约占30%;蛋白质含量为19.66%。  相似文献   

7.
干花豆根中微量元素、氨基酸及多糖的分析   总被引:4,自引:0,他引:4  
采用硝酸消化、直流氩等离子体火焰发射光谱仪测定出干花豆根中含有20多种微量元素。经氨基酸自动分析仪测出含有游离氨基酸17种。采用间接碘量法对其中多糖进行含量测定,结果表明干花豆根中多糖含量为0.183%,RSD为3.15%。  相似文献   

8.
杀虫磺(Bancol)是一种新的沙蚕毒素系杀虫剂。属低毒农药,无致突变和致畸作用,可用于水稻、蔬菜和果树等害虫防治。有关杀虫磺转化为沙蚕毒素的条件,国内外未见报导。研究杀虫磺转化为沙蚕毒素的条  相似文献   

9.
皱纹盘鲍中几种营养成分的测定   总被引:11,自引:0,他引:11  
本文报道了皱纹盘鲍体内所含有的蛋白质(50.81%),粗脂肪(6.24%)氨基酸和矿物质元素的含量,为鲍的药用提供理论依据。  相似文献   

10.
不同方法提取的佛手挥发油气相色谱-质谱分析结果比较   总被引:1,自引:0,他引:1  
目的:比较分析水蒸气蒸馏法与超临界流体萃取法(SFE)提取佛手挥发油的化学成分和相对含量。方法:运用气相色谱-质谱技术(GC-MS),结合计算机检索对其化学成分进行分离和鉴定,用色谱峰面积归一化法计算各组分的相对含量。结果:水蒸气蒸馏法中鉴定出18种化学成分,SFE中鉴定出16种化学成分,二者的主要成分均含有D-柠檬烯,相对含量前者为57.87%,后者为81.18%;水蒸气蒸馏法提出成分中还含有25.12%的(+)-2-蒈烯,而SFE法未检测到该成分。结论:两种提取方法成分结果有所不同,但都含有主要成分D-柠檬烯,含量以SFE法为高。  相似文献   

11.
肖会敏  何悦  王四旺  谢艳华  杨倩 《中国药房》2012,(47):4488-4490
目的:建立测定椒目仁油与紫苏油、花生油、菜籽油、大豆油、山茶油中棕榈酸、硬脂酸、油酸、亚油酸与α-亚麻酸含量的方法,并对上述6种植物油中5种脂肪酸的含量进行比较。方法:采用十四酸作为内标,先甲酯化脂肪酸,再用气相色谱法测定5种脂肪酸的含量。色谱柱为涂布浓度15%丁二酸二乙二醇聚酯的不锈钢填充柱(2000mm×3mm),柱温为180℃,进样口温度为300℃,检测器为氢火焰离子化检测器,检测器温度为320℃,载气为高纯氮,流量为40mL·min-1,不分流进样。结果:6种植物油中棕榈酸、硬脂酸、油酸、亚油酸、α-亚麻酸及总的不饱和脂肪酸含量,椒目仁油中分别为10.79%、2.93%、19.36%、27.73%、31.61%、78.70%,紫苏油中分别为7.74%、4.29%、17.04%、10.34%、58.64%、86.02%,花生油中分别为4.10%、3.59%、41.92%、32.21%、0.24%、74.37%,菜籽油中分别为2.52%、1.51%、22.88%、41.76%、8.03%、72.67%,大豆油中分别为13.84%、4.98%、19.32%、45.12%、6.28%、70.72%,山茶油中分别为5.17%、3.75%、37.46%、3.82%、0.26%、41.54%。结论:椒目仁油与其余几种油比较具有不饱和脂肪酸含量高、来源丰富、制作简单、价格便宜等优点,可以作为补充脂肪酸的来源。  相似文献   

12.
光照和培养时间对紫球藻细胞脂肪酸含量的影响   总被引:4,自引:1,他引:3  
紫球藻中高不饱和脂肪酸含量丰富,AA与EPA二者之和可达总脂肪酸的46.6%。不同生长时期的紫球藻脂肪酸组成不同。光强不仅影响藻体中类脂的含量,而且影响着各种脂肪酸在总脂肪酸中的比例。  相似文献   

13.
中药红曲中氨基酸和脂肪酸的分析   总被引:4,自引:1,他引:3  
宋洪涛  宓鹤鸣 《中国药房》1999,10(5):230-231
目的:考察中药红曲中氨基酸和脂肪酸的含存情况。方法:采用氨基酸自动分析仪进行氨基酸的分析,采用气相色谱仪进行脂肪酸的分析。结果:国内8个产地及自制新红白H18中含有19种氨基酸,其中有10种药用氨基酸(48%~63%),7种人体必需氨基酸(29%~45%),游离氨基酸的含量(0.81%~1.14%)约为其发酵培养基粳米的15倍~21倍。国内8个产地红曲中多烯不饱和脂肪酸约为总脂肪酸的16%~27%,而新红白H18中多烯不饱和脂肪酸约为总脂肪酸的48%。结论:红曲中富含有多种游离氨基酸及多烯不饱和脂肪酸,新红曲H18与各地产红曲在脂肪酸化学成分的相对百分含量上有较大区别。提示,新红曲H18的产生菌株与各地红曲的原始菌株可能不是同一种或是其一变种。  相似文献   

14.
1. The present study was performed in order to determine the amino acid and fatty acid composition of an aqueous extract of the freshwater fish Channa striatus, obtained by soaking (1:2, w/v) fresh fillets overnight in a chloroform:methanol (2:1, v/v) solvent, to elucidate the mechanism responsible for its antinociceptive activity and to clarify the relationship between the presence of the amino and fatty acids and the expected activity. 2. The aqueous extract was found to contain all amino acids with the major amino acids glycine, alanine, lysine, aspartic acid and proline making up 35.77 +/- 0.58, 10.19 +/- 1.27, 9.44 +/- 0.56, 8.53 +/- 1.15 and 6.86 +/- 0.78% of the total protein, respectively. 3. In addition, the aqueous extract was found to have a high palmitic acid (C16:0) content, which contributed approximately 35.93 +/- 0.63% to total fatty acids. The other major fatty acids in the aqueous extract were oleic acid (C18:1), stearic acid (C18:0), linoleic acid (C18:2) and arachidonic acid (C20:4), contributing 22.96 +/- 0.40, 15.31 +/- 0.33, 11.45 +/- 0.31 and 7.44 +/- 0.83% of total fatty acids, respectively. 4. Furthermore, the aqueous extract was demonstrated to possess concentration-dependent antinociceptive activity, as expected, when assessed using the abdominal constriction test in mice. 5. It is concluded that the aqueous extract of C. striatus contains all the important amino acids, but only some of the important fatty acids, which are suggested to play a key role in the observed antinociceptive activity of the extract, as well as in the traditionally claimed wound healing properties of the extract.  相似文献   

15.
The fish tissues from four species collected from Taihu Lake, China, were analyzed including dorsal, ventral, and tail muscles, heart, liver, and kidney. The highest and lowest concentrations of fatty acids were respectively observed in livers and muscles. There were significant intraspecies and interspecies differences in the compositions of most fatty acids among muscle, heart, liver, and kidney. All the tissues were generally beneficial for consumption considering fatty acids. People mainly consume the muscle. Hence, the benefits from two polyunsaturated fatty acids, i.e., eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), and risks from PCBs and PBDEs via fish consumption were evaluated by calculating the benefit-risk quotient (BFQ) for the intake of fish muscle containing EPA + DHA vs. PCBs or PBDEs. The BFQ values considering carcinogenic and noncarcinogenic effects for PCBs were ∼3000 and 10 times higher than those of PBDEs via fish consumption to achieve the recommended EPA + DHA intake of 250 mg d−1, respectively. The results also suggested that the risk consuming the dorsal muscle was generally lower than the ventral and tail muscles.  相似文献   

16.
牵牛子脂肪油超临界CO_2萃取及气相-质谱测定   总被引:5,自引:2,他引:5  
李澎灏  陈振德 《中国药房》2003,14(7):431-432
目的 :提取分析牵牛子脂肪油及其成分。方法 :用超临界CO2 萃取法提取牵牛子脂肪油 ,结合气相 -质谱法分析脂肪油成分。结果 :牵牛子脂肪油含量为34.78% ,脂肪酸组成以亚油酸、油酸和棕榈酸为主 ,不饱和脂肪酸占脂肪酸总量的88.70% ,饱和脂肪酸以棕榈酸为主。结论 :牵牛子脂肪油属优质植物油,分析结果可为开发、利用牵牛子油脂资源提供科学依据  相似文献   

17.
This study systematically investigated the enhancing effect of fatty acids on the skin permeation of diclofenac. The fatty acids were evaluated in terms of their carbon-chain length, the degree of unsaturation, and their functional groups. The rat-skin permeation rates of diclofenac, saturated in propylene glycol (PG) containing 1% (w/v) fatty acid, were determined using the Keshary-Chien diffusion cells at 37°C. The effect of fatty acids on the saturated solubility of diclofenac in PG was also determined at 37°C using high-performance liquid chromatography. Among the saturated fatty acids tested, palmitic acid (C16:0) showed the most potent skin permeation-enhancing effect. A parabolic correlation was observed between the enhancement effect and the fatty acid carbon-chain length among these saturated fatty acids of C12–C20 units. For the monounsaturated fatty acid series, an increase in permeation was observed as the carbon-chain length increased, and oleic acid (C18:1) showed the highest permeation-enhancing effect. Increasing the number of double bonds in the octadecanoic acids resulted in a parabolic effect in the permeation of diclofenac, revealing oleic acid as the most effective enhancer used in this study. When the carboxylic acid moiety of oleic acid was changed to an amide (oleamide) or hydroxyl (oleyl alcohol) group, a decrease in permeation activity was observed. These results, therefore, suggest that the cis-monounsaturated configuration and the carboxylic acid moiety of an 18-carbon unit fatty acid in PG are the optimum requirements for the effective skin permeation of diclofenac.  相似文献   

18.
北沙参的脂肪酸特征及产地差异性分析   总被引:1,自引:0,他引:1  
目的 研究北沙参的脂肪酸特征,比较山东莱阳、河北安国、内蒙古赤峰等三个主产地的北沙参脂肪酸差异。方法 Bligh and Dyer法提取总脂;甲酯化后,利用气相色谱-质谱联用仪(GC-MS)分析;通过与脂肪酸标准品及NIST 11.0质谱数据库比对鉴定脂肪酸种类,采用面积归一法分别计算各成分的相对质量分数。结果 分别从山东莱阳、河北安国和内蒙古赤峰的北沙参药材中鉴定了17、17和18种脂肪酸;三个产地药材的优势脂肪酸种类一致,依次为C18:2 n-6c(亚油酸,49.22~63.96%)、C16:0(棕榈酸,17.43~25.33%)和C18:1 n-9c(油酸,13.85~19.44%),均未检测到n-3型多不饱和脂肪酸(PUFA)。山东莱阳药材的多不饱和脂肪酸总量(PUFA)低于河北安国及内蒙古赤峰,但饱和脂肪酸(SFA)、 单不饱和脂肪酸(MUFA)和多不饱和脂肪酸(PUFA)三者比值最接近1:1:1。结论 不同产地北沙参的脂肪酸种类相近。亚油酸是北沙参含量优势脂肪酸,提示可以作为北沙参防治胆固醇代谢相关疾病的质量标志物候选分子。  相似文献   

19.
李兴德 《中国药业》2010,19(24):25-26
目的分析长鬃蓼的脂肪酸含量及其脂肪酸组成。方法以索氏提取法提取长鬃蓼的脂肪油,采用气相色谱-质谱分析鉴定脂肪酸成分。结果鉴定了长鬃蓼的18个脂肪酸成分、2个甾类化合物和植醇,占色谱总出峰面积的82.39%;脂肪酸组成以亚油酸、油酸和棕榈酸为主,不饱和脂肪酸占脂肪酸总量的60.79%。结论长鬃蓼脂肪酸成分主要为不饱和脂肪酸,所含脂肪酸具有很好的药理活性,为开发利用长鬃蓼资源提供了科学依据。  相似文献   

20.
三角褐指藻中多烯脂肪酸的初步研究   总被引:2,自引:1,他引:1  
研究了硅藻纲三角褐指藻中多烯脂肪酸的提取分离方法和含量测定,探讨了该硅藻的培养温度和时间对其脂肪酸和脂质含量的影响。该硅藻的二十碳五烯酸含量在脂肪酸中为11%左右;脂质含量随培养条件不同而变化,一次培养为11.8%,二次培养为18.2%。  相似文献   

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