Effect of a diet rich in linseed oil on complex viscosity and blood pressure in spontaneously hypertensive rats (SHR)

Summary The influence of a diet rich in linseed oil (10 % in weight) with a content of 61.2 % of -linolenic fatty acid on blood pressure and complex blood viscosity was investigated in spontaneously hypertensive rats. A decrease in blood pressure by 59 mm Hg was found compared to the age-matched, untreated control group. The viscous () and elastic () components of viscosity were also reduced at various shear rates ( ). The same applies to the aggregation index, which is a measure of the aggregation tendency of red blood cells (RBC).Of course, the effects on blood viscosity cannot explain the observed degree of blood-pressure lowering. Nevertheless, a decrease in the viscosity can improve the flow conditions in the microcirculation, which may lead to a better oxygen supply.Supported by the Alfred-Teufel-Stiftung.This study is part of the unpublished doctoral thesis of M. Schäch     

Cutting oil dermatitis on guinea pig skin

The effect of repeated exposure of cutting oil on 8 guinea pigs' skin was evaluated by visual scoring for erythema and skin water vapour loss (SVL) measurement over a 6-week period. The visual scores (measuring severity of erythema) and SVL values were significantly higher on skin treated with cutting oils (positive control) compared to untreated skin (negative control) throughout the study period. The scores and SVL values returned to near-baseline values when cutting oil application was stopped. In addition, the effect of 2 "after-work" emollient creams on 8 guinea pigs' skin repeatedly treated with a cutting oil was assessed by similar methods. The visual scores and SVL values of guinea pig skin that was repeatedly treated with the cutting oil and moisturized with "after-work" emollient creams, were significantly higher than negative and positive control guinea pig skin. It appeared that the 2 "after-work" emollient creams do not alleviate the irritant effect of the cutting oil on guinea pig skin. They appeared to aggravate the irritant effect of the cutting oil.     

细辛油的抗炎作用

腹腔注射细辛油0.24 ml/kg对角叉菜胶引起的大鼠足肿胀有抑制作用。此作用在切除肾上腺的大鼠亦能看到。细辛油能降低炎症组织及其渗出液中组胺含量,对组胺或PGE₂引起的大鼠足肿胀有抑制作用,并能对抗组胺或PGE₂引起的毛细血管通透性增加,本品能抑制大鼠胸腔因注射角叉菜胶后引起的白细胞游走;对大鼠棉球肉芽肿有抑制作用,并使胸腺萎缩,还降低正常大鼠肾上腺内维生素C含量。     

Psychological effects of aromatherapy on chronic hemodialysis patients

Effects of aromatherapy (odorless condition, lavender, and hiba oil) on mood and anxiety were investigated in 14 female patients who were being treated with chronic hemodialysis. A control period consisting of natural hospital smells was established before each test session, and then aromatic test conditions were systematically evaluated for odorless conditions as well as aromatic conditions containing lavender and hiba oil aromas. The effects of aromatherapy were measured using the Hamilton rating scale for depression (HAMD) and the Hamilton rating scale for anxiety (HAMA). Hiba oil aroma significantly decreased the mean scores of HAMD and HAMA, and lavender aroma significantly decreased the mean scores of HAMA. The mean scores of HAMD and HAMA in an odorless condition were not significantly different from those of the control conditions. These results indicate that in chronic hemodialysis patients hiba oil is an effective, non-invasive means for the treatment of depression and anxiety, and that lavender alleviates anxiety.     

山茨菇挥发油化学成分气相色谱-质谱联用分析

目的：分析山茨菇挥发油的化学成分。方法：用气相色谱-质谱联用法（GC-MS）分析。结果：山茨菇挥发油的化学成分，共鉴定了40个组分，其中芒樟醇、异石竹烯、β-金合欢烯、橙花叔醇、细辛醚、肉桂酸酯类等为其挥发油主要成分。结论：该结果可供临床研究参考。     

穿破石挥发性成分的研究

目的 :研究穿破石中的挥发性成分。方法 :利用水蒸气蒸馏法提取穿破石挥发油 ,用GC-MS进行测定 ,结合计算机检索技术对分离的化合物进行结构鉴定 ,应用色谱峰面积归一化法计算各成分的相对百分含量。结果 :鉴定出 64个化学成分 ,其中相对百分率含量大于 1%的有23个成分 ,含量较高的是L 芳樟醇 (L-linalool)9.852%。结论 :64个挥发性成分均为首次从该植物中得到。     

GC-MS建立石牌广藿香挥发油指纹图谱方法学研究

目的：建立石牌广藿香挥发油GC-MS分析色谱条件，初步拟定石牌藿香挥发油特征指纹图谱指标成分群，阐明石牌藿香的道地特性；方法：采用GC-MS法对不同采集期石牌藿香，以及同基地栽培的高要，湛江藿香挥发油进行主要成分比较分析。结果：以11个主要共有峰为评价指标；GC-MS色谱条件的精密度，稳定性，重现性良好；固定产地的石牌藿香稳定性好，不同采收期主成分基本相同，其中广藿香酮的含量随种植时间的延长而明显增高；与同地栽培的高要，湛江藿香相比，广藿香酮，广藿香醇等含氧组分以及不含氧的倍半萜烯类主成分的相对含量均有明显差异；结论：GC-MS法分析广藿香挥发油主成分，方法准确可靠；其本身具有的多成分同时定性的优势，为阐明道地药材牌香与高要，海南藿香的区别奠定了坚实基础。     

千斤拔挥发性成分的研究

目的：研究千斤拔中的挥发性成分。方法：利用水蒸气蒸馏法提取千斤拔(Radix Flemingiae philippinensis）挥发油，用GC—MS进行测定，结合计算机检索技术对分离的化合物进行结构鉴定，应用色谱峰面积归一化法计算各成分的相对百分含量。结果：鉴定出39个化学成分，其中相对百分率含量大于4％的分别确定为α—雪松烯(1)，γ—雪松烯(2)，β—雪松烯(3)，β—愈创烯(4)，Italiccnc(5)。结论：千斤拔挥发油中近80％成分已查清。     

气质联用法分析炮制对莪术挥发油成分的影响

目的：比较研究醋制对莪术挥发油化学成分及含量的影响。方法：采用GC-MS法进行分析鉴定各挥发油的组分。结果：莪术经炮制后各制品的挥发油含量均有不同程度变化，其组分亦有较大变化。共鉴定出20个化合物，其中12个成分为首次从本品中鉴定，炮制后产生两个新组分4-异丙基苯甲酸、2-甲基-5-(1-甲基乙烯基)-环己酮。结论：莪术醋制后挥发油含量有所下降，由于加热及辅料影响部分组分消失，同时产生新的组分。     

莪术油治疗小儿呼吸道感染的疗效观察

目的:观察莪术油治疗小儿急性呼吸道感染(ARTI)的疗效和安全性。方法:218例RTI患儿随机分两组,治疗组静滴莪术油25ml/(kg·d),1~2次/d,疗程3~7d;对照组静滴头孢拉定50~100mg/(kg·d),3~4次/d,疗程3~7d。结果:两组总有效率分别为89.96%和88.7%(P>0.05)。用药3d后主要症状、体征等客观指标的改善率,治疗组优于对照组(P<0.05)。治疗组未发现不良反应。结论:莪术油葡萄糖注射液治疗小儿呼吸道感染安全有效、使用方便。