人工种植“桑黄”最佳采收期的研究

通过比较不同生长年限人工种植"桑黄"及野生"桑黄"的生物学特性,从而确定人工种植"桑黄"的最佳采收期。取1年生、2年生、3年生、4年生、5年生人工种植"桑黄"及野生"桑黄"子实体,使用紫外-可见光分光光度法测定比较人工栽培不同生长年限"桑黄"子实体以及野生"桑黄"子实体的多糖、总黄酮、总三萜含量。2年生人工种植的"桑黄"子实体多糖含量为2.216 mg/g,总黄酮含量为190.067 mg/g,三萜含量为0.6045 mg/g,3种有效成分的含量均优于野生"桑黄"子实体。可以初步将"桑黄"的采收期定为2年。

6种“桑黄”石油醚提取物的体内抗肿瘤活性

对6种"桑黄"的石油醚提取物进行了抗肿瘤体内试验,测定其对H22荷瘤小鼠抑瘤率、免疫器官指数、免疫因子含量和生存率的影响。试验结果表明:粗毛纤孔菌、鲍姆木层孔菌、火木层孔菌和瓦宁木层孔菌的石油醚提取物高、低剂量(100,50 mg/kg)以及黑壳目层孔菌石油醚提取物高剂量(100 mg/kg)对肿瘤均具有一定抑制作用,抑瘤率均>40%;瓦宁木层孔菌石油醚提取物低剂量组(50 mg/kg)的抑瘤效果最佳,为76.82%,其脾指数、胸腺指数均明显高于阳性组(P<0.01),IL2的含量也明显高于对照组和阳性组,能延长小鼠的生存期;椭圆嗜蓝孢孔菌石油醚提取物也具有一定的抑瘤效果,高、低剂量(100,50 mg/kg)抑瘤率分别为39.30%和36.17%。

桑杏苈黄汤在痰热闭肺证急性喘息性支气管炎患儿治疗中的应用

目的探讨桑杏苈黄汤在痰热闭肺证急性喘息性支气管炎(acute asthmatic bronchitis,AAB)患儿治疗中的应用。方法80例2019年9月—2023年5月泰州市姜堰中医院儿科门诊及住院部收治的痰热闭肺证AAB患儿以随机数字表法将其分为对照组(40例)和观察组(40例)。两组患儿均给予常规治疗,对照组在此基础上给予吸入用布地奈德混悬液、吸入用异丙托溴铵溶液、硫酸特布他林雾化吸入用溶液进行治疗,观察组在对照组基础上给予桑杏苈黄汤进行治疗,两组均持续治疗1周。对比对照组和观察组治疗1周后疗效,治疗前和治疗1周后中医证候评分、炎性因子及治疗期间安全性情况。结果与对照组比较,治疗1周后,观察组总有效率较高[95.00%(38/40)vs 77.50%(31/40),P<0.05]。与对照组比较,观察组喘息、咳嗽、肺部啰音消失及发热、气促缓解时间均较短(P<0.05)。与治疗前比较,两组治疗1周后的发热、喘息、咳嗽、痰鸣、紫绀、鼻煽评分及血清嗜酸性粒细胞(eosinophils,EOS)、免疫球蛋白E(immunoglobulin E,IgE)、白细胞介素-6(interleukin-6,IL-6)水平均降低,观察组低于对照组(P<0.05)。与对照组比较,治疗期间,观察组不良反应发生率较低[7.50%(3/40)vs 25.00%(10/40),P<0.05]。结论桑杏苈黄汤可明显改善痰热闭肺证AAB患儿中医证候,减轻患儿炎症反应,进而有利于促进患儿临床症状的改善,提高临床疗效,且具有较高安全性。

Effects of Compound Phellinus igniarius(L.ex Fr.)Quel. Oral Liquid's Polysaccharide on the Immunologic Function of Mice

In this paper, the effects of compound P. igniarius oral liquid’s crude polysaccharide on the immunologic function of mice were studied from four aspects, namely, carbon clearance test of mice, macrophage phagocytosis of chicken red blood cel s in the enterocoelia of mice （semi-in vivo method）, the ratio of organ to body weight, natural kil er （NK） cel activity in mice （the determination of lactate de-hydrogenase assay）. The results showed that high-dosage group（40 mL/kg） of com-pound P. igniarius oral liquid can obviously enhance the ability of carbon clearance of mice; middle-（20 mL/kg） and high-dosage groups can significantly enhance the phagocytic rate and phagocytic index of chicken erythrocyte of mouse macrophage;low-（10 mL/kg）, middle- and high-dosage groups can significantly enhance NK cel activity of mice. These showed that compound P. igniarius oral liquid can enhance mononuclear-macrophage and NK cel activity. In conclusion, compound P. igniarius oral liquid’s polysaccharide can enhance immunologic function and significantly im-prove the specific and nonspecific immunologic function.

Optimization of Protein Removal Method and Condition of Polysaccharide from Phellinus Linteus

[Objective] The research aimed at optimizing protein removal method and condition of polysaccharide extracts from Phellinus Linteus and comparing the effects of two methods on protein removal.[Method] Free proteins in polysaccharide from Phellinus Linteus were removed using Sevag method and TCA method.[Result] The TCA method was better than Sevag method,and the optimum protein removal condition was treated with 5% TCA for 30 min and for three times,under that condition,the protein removal rate attained 82% while the polysaccharide loss rate was only 10.8%.[Conclusion] The TCA method was a better way to remove proteins of polysaccharide from Phellinus Linteus.

Content Variation of Active Components in Mulberry Fruit During Ripening Process

Ten mulberry species were taken as materials to detect contents of DNJ,polysaccharide and flavonoid.The results indicated that the three active components differed significantly upon species.Hongguo 2 and Shushen 1,which are of high contents of active components,were selected as materials to measure contents change of active components in fresh fruits during ripening process after full-bloom stage.The research suggested that DNJ mass fractions of Hongguo 2 and Shushen 1 on the 3rd d in full-bloom stage were 0.074 1% and 0.072 5%;DNJ declined gradually with growth of the fruit and DNJ contents in the two cultivars decreased by 49.80% and 58.90% on the 31st d in full-bloom stage,compared with the 3rd d.As mulberry grew,polysaccharide contents in Hongguo 2 and Shushen 1 were increasing and achieved peaks on the 27th d in full-bloom stage at 9.570% and 10.276%,respectively.For total flavonoids,the contents in Hongguo 2 and Shushen 1 were both of two peaks on 11th d and 27th d.The mass fractions were 0.313%,0.444%,and 0.264%,0.326%,accordingly.In addition,DNJ contents in ripe seeds of Hongguo 2 and Shushen 1 were significantly higher than those in fruit,but total flavonoid contents were lower.Polysaccharide was not detected.It can be concluded that mulberry fruits growing for 27 d can be either as excellent food or for medicine.

The Ecosystem Service Function of Shandong Xiajin Yellow River Ancient Mulberry Trees System and Its Effect on Regional Ecosystem

The Shandong Xiajin Yellow River Ancient Mulberry Trees System is a model of desertification control in the floor area in the Luxibei Plain,and of sustainable development.The current study about ancient mulberry trees in Xiajin county is mainly qualitative representation,lack of quantitative research.In addition,the relevant important ecological functional assessment should not only confine to quantitative assessment which illustrate the current condition,but also analyze the eco-service changes,derived from ecosystem structure develop,from the time dimension.Based on quantitative eco-service assessment of the ancient mulberry tree group,this paper intend to conduct a comprehensive analysis of ecological functions of ancient mulberry group focuses on the perspective of system structure and function evolution.Quantitative evaluation results show that the system has significant eco-efficiency in water conservation,reducing sediment loss,adjust atmosphere,etc.On timescale,thanks to mulberry cultivation,ecosystem structure and services have also undergone a corresponding change.In ecosystem structure：Planting pioneer trees such as mulberries and other species which can tolerate hostile site conditions,improves the micro-environment.This makes it possible for other crops to grow.The mixed forests and the combination of forestry and agriculture protect biodiversity.What＇s more,they make the structure of the ecosystems more robust,giving full play to their functions.In terms of ecosystem services：ecosystem services of Xiajin Yellow River Ancient Mulberry Trees have shown diversified development.And its main function has transferred from supply products to leisure and entertainment functions.

Study on chemical constituents and biological activities of Sanghuangporus vaninii under static magnetic field

The chemical composition and biological activity of Sanghuangporus vaninii solid culture treated by static magnetic field were studied.The compounds were isolated and purified using ultrasonic extraction and semi-preparative liquid chromatography.Their structures were identified through spectral data,and the inhibitory activities againstα-amylase,α-glucosidase and pancreatic lipase were evaluated.Three compounds,5,7-dihydroxy-3,4'-dimethoxyflavone(1),D-(+)-Trehalose(2),pinolenic acid(3),were extracted from the petroleum ether layer.Comparison of peak heights indicated a significantly higher content of compounds subjected to a 4 mT static magnetic field compared to those untreated.Activity tests revealed that compounds 1 and 2 exhibited strong anti-α-amylase and anti-α-glucosidase activities.Specifically,compound 1 had inhibition rates of(65.37±0.05)%and(73.81±0.12)%after 4 mT treatment,compared to(57.26±0.11)%and(65.33±0.14)%without.Compound 2 showed inhibition rates of(68.61±0.12)%and(65.38±0.09)%with the magnetic field,versus(60.71±0.06)%and(56.18±0.02)%without.Compound 3 displayed a notable inhibitory effect on pancreatic lipase,with rates of(60.83±0.03)%after 4 mT treatment and(53.77±0.09)%without.This study demonstrates that the static magnetic field enhances the chemical content and bioactivity of Sanghuangporus vaninii solid culture,providing a basis for its further development and application.