太极拳锻炼对心血管机能和血流流变学的影响

通过文献资料法、统计分析法、Delphi调查法、综合归纳法等研究太极拳锻炼对心血管机能和血流流变学的影响 ,结果表明 :长期坚持太极拳锻炼可以增强心泵机能 ,保持血管弹性 ,增加免疫球蛋白含量 ,提高心血管调节能力 ,促进微循环改善 ,从而延缓心血管机能的老化 ,对防治心血管疾病 ,强身健体 ,延年益寿起到良好作用     

Comparative evaluation of ultramicro—and macro-chemo enzyme based assays of glucose, cholesterol and triglycerides

A comparison of the absorbance, enzyme/substrate concentration, reaction efficiency and sensitivity has been made for enzyme-based clinical chemistry assays, using a conventional colorimeter versus a strip-microwell reader, in order to establish the value of ultra-microchemical procedure, with reaction volume 87 μl (light path length=0.25 cm). By utilizing commercial kits available for the quantitation of serum glucose, cholesterol and triglycerides, it has been established that the micro method is highly cost effective (9–30 fold), reproducible and sensitive. Comparison of blood drawn by a finger prick (capillary) and venipuncture for normal and pathological specimens show reproducibility between different laboratory technologists and in reference with the values reported by an accredited reference laboratory. Since the micro method uses very little serum, it is most suitable for analyses of small smaples, from large population-based field trials. However, the assay range has to be titrated for each commercial kit to establish the enzyme/substrate equivalence.     

Three Cases of Lead Toxicity Associated with Consumption of Ayurvedic Medicines

Ayurveda is a traditional form of medicine used by majority of the Indians. Here we report three cases of lead toxicity, following intake of Ayurvedic medicines. Three patients presented with blood lead levels (BLLs) of 122.4, 115 and 42.8 μg/dl respectively at the time of hospitalization. The first case was chelated with D- penicillamine, the second with calcium disodium ethylene diamino tetra acetate (EDTA) and the third with environmental intervention and education. Associated Ayurvedic products were collected from patients and analyzed for metallic concentration. Cessation of Ayurvedic medication along with chelation, nutritional intervention and education, reduced the BLL to 27.4 μg/dl in the first case after 1 year, 21.1 μg/dl after 9 months in the second and 18.2 μg/dl after 6 months in the third case.     

Physiological demands of top-class soccer refereeing in relation to physical capacity: effect of intense intermittent exercise training

To examine the activity profile and physiological demands of top-class soccer refereeing, we performed computerized time-motion analyses and measured the heart rate and blood lactate concentration of 27 referees during 43 competitive matches in the two top Danish leagues. To relate match performance to physical capacity and training, several physiological tests were performed before and after intermittent exercise training. Total distance covered was 10.07 - 0.13 km (mean - s x ), of which 1.67 - 0.08 km was high-intensity running. High-intensity running and backwards running decreased (P ? 0.05) in the second half. Mean heart rate was 162 - 2 beats· min -1 (85 - 1% of maximal heart rate) and the mean blood lactate concentration was 4.9 - 0.3 (range 1.7-14.0) mmol·l -1 . The amount of high-intensity running during a match was related to the Yo-Yo intermittent recovery test ( r 2 = 0.57; P ? 0.05) and the 12 min run ( r 2 = 0.21; P ? 0.05). After intermittent training ( n = 8), distance covered during high-intensity running was greater (2.06 - 0.13 vs 1.69 - 0.08 km; P ? 0.05) and mean heart rate was lower (159 - 1 vs 164 - 2 beats· min -1 ; P ? 0.05) than before training. The results of the present study demonstrate that: (1) top-class soccer referees have significant aerobic energy expenditure throughout a game and episodes of considerable anaerobic energy turnover; (2) the ability to perform high-intensity running is reduced towards the end of matches; (3) the Yo-Yo intermittent recovery test can be used to evaluate referees' match performance; and (4) intense intermittent exercise training improves referees' performance capacity during a game.     

The effects of work – rest duration on intermittent exercise and subsequent performance

This study examined the effects of different work?–?rest durations during 40?min intermittent treadmill exercise and subsequent running performance. Eight males (mean?±?s: age 24.3?±?2.0 years, body mass 79.4?±?7.0?kg, height 1.77?±?0.05?m) undertook intermittent exercise involving repeated sprints at 120% of the speed at which maximal oxygen uptake (v-[Vdot]O_2max) was attained with passive recovery between each one. The work?–?rest ratio was constant at 1:1.5 with trials involving short (6:9?s), medium (12:18?s) or long (24:36?s) work?–?rest durations. Each trial was followed by a performance run to volitional exhaustion at 150% v-[Vdot]O_2max. After 40?min, mean exercise intensity was greater during the long (68.4?±?9.3%) than the short work?–?rest trial (54.9?±?8.1% [Vdot]O_2max; P?<?0.05). Blood lactate concentration at 10?min was higher in the long and medium than in the short work?–?rest trial (6.1?±?0.8, 5.2?±?0.9, 4.5?±?1.3?mmol?·?l^?1, respectively; P?<?0.05). The respiratory exchange ratio was consistently higher during the long than during the medium and short work?–?rest trials (P <?0.05). Plasma glucose concentration was higher in the long and medium than in the short work?–?rest trial after 40?min of exercise (5.6?±?0.1, 6.6?±?0.2 and 5.3?±?0.5?mmol?·?l^?1, respectively; P?<?0.05). No differences were observed between trials for performance time (72.7?±?14.9, 63.2?±?13.2, 57.6?±?13.5?s for the short, medium and long work?–?rest trial, respectively; P = 0.17), although a relationship between performance time and 40?min plasma glucose was observed (P?<?0.05). The results show that 40?min of intermittent exercise involving long and medium work?–?rest durations elicits greater physiological strain and carbohydrate utilization than the same amount of intermittent exercise undertaken with a short work?–?rest duration.     

苦玄参研究概况

药材苦玄参来源于玄参科植物苦玄参Picria fel-terrae Lour.,药用全草,是广西多种畅销中成药及保健品的主要原料,为广西大宗特产药材。随着技术进步和开发利用需要,苦玄参的化学成分、定量分析和质量控制、药理研究、生物学特性、栽培技术等方面的研究取得了大量成果。现对其进行阐述,以期为下一步开展苦草研究提供参考和借鉴,促进其产业发展。     

Effect of Arsenic Contaminated Drinking Water on Human Chromosome: A Case Study

Arsenic contamination of ground water has become a serious problem all over the world. Large number of people from Uttar Pradesh, Bihar and West Bengal of India are suffering due to consumption of arsenic contaminated drinking water. Study was carried out on 30 individuals residing in Ballia District, UP where the maximum concentration of arsenic was observed around 0.37 ppm in drinking water. Blood samples were collected from them to find out the problem related with arsenic. Cytogenetic study of the blood samples indicates that out of 30, two persons developed Klinefelter syndrome.     

Investigation of blood pulse PPG signal regulation on toe effect of body posture and lower limb height

Objective: To study the regulation of blood pulse volume via photoplethysmography (PPG) signal detected from toe, while the lower limb is passively raised in different height positions. Methods: Use a modified non-invasive PPG technique to detect the blood pulse signal on toe with infrared (IR) photo sensor. A protocol consisting of two postures, i.e., supine and 45° reclining, was designed to conduct laboratory trial in this study. During the period of performing the protocol of these postures, the lower limb was passively raised from the heights of 10 cm to 60 cm randomly and individually with sponge blocks underneath the foot. Results: In the supine posture, the higher the foot was passively raised, the more the blood PPG signal decreased. In the 45° reclining posture, the blood PPG signal increased at the beginning and then decreased in the foot height position from 10 cm to 60 cm. In both postures the normalized AC signal changes significantly while the normalized DC signal changes little. Conclusion: The toe PPG signals can obviously indicate the regulated blood volume change with the designated postural procedures due to the heart level position.     

战骨茎石油醚部分的化学成分研究

为了研究战骨茎石油醚部分的化学成分，将战骨茎质量分数为70％乙醇提取物依次用石油醚、乙酸乙酯和正丁醇充分萃取，用硅胶柱色谱、葡聚糖凝胶柱色谱反复对石油醚部分进行成分分离、纯化，通过波谱方法鉴定结构，从战骨茎的石油醚部分共分得4个化合物，分别为木栓酮（Ⅰ）、卢一谷甾醇（Ⅱ）、熊果酸（Ⅲ）、β-胡萝卜甙（Ⅳ）．其中化舍物Ⅲ首次从该植物中分离得到，也是首次从该属植物中分离得到．     

巴比世酒的成分研究

对巴比世药酒的酒精度、单宁含量、总固体含量进行了分析研究,并对巴比世酒的色度、有效成分、甲醇含量、杂醇油含量、咖啡因含量等进行了定量分析．考察了药酒中的活性成分以及各项指标是否符合药酒质量标准。