螺旋藻多糖对人宫颈癌Hela细胞体外生长的影响

目的：探讨螺旋藻多糖（PSP）对体外培养的Hela细胞生长的影响。方法：采用MTT法测定 PSP的抗肿瘤活性，并观察其对Hela细胞形态学的影响。结果：随PSP浓度的升高，Hela细胞存活率逐渐降低，抑制率逐渐增加；光镜下观察显示，PSP作用24-48h后，细胞出现明显的形态学改变。结论：PSP能抑制Hela细胞增殖。     

螺旋藻营养片多糖含量的测定

用化学方法提取了螺旋藻营养片中的多糖成分，并用＂苯酚─硫酸法＂测定了多糖的含量。结果表明：螺旋藻营养片的多糖含量为１．１６％，测定方法可靠。     

流动注射氢化物原子吸收法测定螺旋藻片中砷的含量

螺旋藻片是由颤藻科原生生物钝顶螺旋藻Spirulinaplaensis的干燥藻体制成的制剂。螺旋藻含有丰富的营养成分，具有益气养血，健脾化痰，调节机体免疫功能。用于病后体虚，血小板低下，高血脂症，以及肿瘤化疗后引致免疫功能低下的辅助治疗。为了更好地控制产品的质量，我们参考文献[1，2]，对其有害元素砷的含量测定方法进行了研究。1实验部分1．1仪器与条件岛津AA－670G原子吸收分光光度计，岛津砷空心阴极灯；WHG－102A型流动注射氢化物发生器以及电加热T型石英管（145mm×8mm）（北京瀚时制作所研制）；0～250V可变交流变压器。检测…     

A randomized,double-blind placebo-controlled add-on trial to assess the efficacy,safety, and anti-atherogenic effect of spirulina platensis in patients with inadequately controlled type 2 diabetes mellitus

The efficacy of spirulina platensis (S. platensis) as an add-on therapy to metformin and its effect on atherogenic keys in patients with uncontrolled Type 2 Diabetes Mellitus (T2DM) was evaluated. Sixty patients were randomly assigned to S. platensis (2 g/day) or placebo group for three months while continuing metformin as their usual treatment. The efficacy of S. platensis was determined using the pre- and post-intervention HbA1c levels (primary outcome) as well as tracking FBS and lipid profiles levels (TC, LDL-C, TG, and HDL-C) as secondary outcomes at the different treatment time points (0,30,60,90 days). During the three–month intervention period, supplementation with S. platensis resulted in a significant lowering of HbA1c (↓1.43, p < 0.001) and FBS (↓ 24.94 mg/dL, p < 001) levels. Mean TG in the intervention group was found to be significantly lower in the intervention group than in controls (p < 0.001). Total cholesterol (TC) and its fraction, LDL-C, exhibited a fall (↓41.36 mg/dL and ↓38.4 mg/dL, respectively; p < 0.001) coupled with a marginal increase in the level of HDL-C (↑3 mg/dL; p < 0.001). Add-on therapy with S. platensis was superior to metformin regarding long-term glucose regulation and controlling blood glucose levels of subjects with T2DM. Also, as a functional supplement, S. platensis has a beneficial effect on atherogenic keys (TG and HDL-C) with no adverse events.     

钝顶螺旋藻抗突变作用的研究

对钝顶螺旋藻的抗突变作用进行了研究。结果表明：钝顶螺旋藻在２０００ｍｇ／ｋｇ剂量下,对环磷酰胺所致小鼠骨髓细胞微核增加有拮抗作用（Ｐ＜０．０５）,对丝裂霉素所致小鼠睾丸染色体畸变在染色体畸变细胞率指标上具有拮抗作用（Ｐ＜０．０５）,在性染色体单价体,常染色体单价体,具有拮抗趋势,但无统计学意义（Ｐ＞０．０５）。在６７,６７０ｍｇ／ｋｇ两个低剂量下,对环磷酰胺所致小鼠骨髓细胞微核和对丝裂霉素所致小鼠睾丸染色体畸变在染色体畸变细胞率增高的拮抗作用无统计学差异（Ｐ＞０．０５）。     

螺旋藻多糖的琼脂糖凝胶电泳鉴别

目的用琼脂糖凝胶电泳对螺旋藻多糖进行定性鉴别。方法利用螺旋藻多糖与肝素、硫酸软骨素、标准硫酸化的葡聚糖之间电荷密度及分子量的差异 ,在巴比妥缓冲液中进行琼脂糖凝胶电泳。结果根据电泳迁移率 ,可明显区分螺旋藻多糖与其他多糖。结论该法重现性较好 ,操作简单 ,可用于螺旋藻多糖的定性鉴别     

螺旋藻多糖的性质结构研究

采用高效液相色谱、气相色谱、特异性酶降解、高碘酸氧化、Smith降解及各种化学方法进行螺旋藻多糖分子质量、单糖组成、连接方式及糖苷键键型分析,并对各种化学成分进行测定。经检测螺旋藻多糖是一种由多种单糖组成的复杂多糖，具有β-型糖苷键．主链部分以1→3键连接为主。     

富硒钝顶螺旋藻生物保健功能研究

目的对富硒钝顶螺旋藻的抗氧化、抗衰老、抗疲劳与增强免疫功能进行研究。方法通过对照服用富硒钝顶螺旋藻(每天每只小鼠摄入1．072μg Se)、普通钝顶螺旋藻小鼠和空白对照组小鼠血液中CAT(过氧化氢酶)、GSH-Px(谷胱甘肽过氧化物酶)和SOD(超氧化物歧化酶)活性的不同对富硒钝顶螺旋藻在抗氧化与抗衰老功能方面的强化作用进行评价。通过比较小鼠血液中的乳酸脱氢酶活性的变化以及游泳、爬杆能力的不同，并进行碳粒廓清和迟发型超敏反应实验，以此对富硒钝顶螺旋藻抗疲劳、增强免疫的效果进行研究。结果与普通钝顶螺旋藻相比，富硒钝顶螺旋藻具有更强的抗氧化、抗衰老、抗疲劳与增强免疫力的功能。     

Physicochemical degradation of phycocyanin and means to improve its stability: A short review

The cyanobacterium Arthrospira platensis, spirulina, is a source of pigments such as phycobiliprotein and phycocyanin. Phycocyanin is used in the food, cosmetics, and pharmaceutical industries because of its antioxidant, anti-inflammatory, and anticancer properties. The different steps involved in extraction and purification of this protein can alter the final properties. In this review, the stability of phycocyanin (pH, temperature, and light) is discussed, considering the physicochemical parameters of kinetic modeling. The optimal working pH range for phycocyanin is between 5.5 and 6.0 and it remains stable up to 45 °C; however, exposure to relatively high temperatures or acidic pH decreases its half-life and increases the degradation kinetic constant. Phycobiliproteins are sensitive to light; preservatives such as mono- and di-saccharides, citric acid, or sodium chloride appear to be effective stabilizing agents. Encapsulation within nano- or micro-structured materials such as nanofibers, microparticles, or nanoparticles, can also preserve or enhance its stability.     

螺旋藻胶囊联合紫杉醇、顺铂治疗晚期宫颈癌的临床研究

目的研究螺旋藻胶囊联合紫杉醇、顺铂治疗晚期宫颈癌的的临床效果。方法收集2011年3月—2014年1月辽宁省肿瘤医院收治的晚期宫颈癌患者90例,随机分为对照组与治疗组,每组例45例。对照组患者在每个化疗周期的第1天静脉滴注紫杉醇注射液130 mg/m2,静脉滴注注射用顺铂60 mg/m2。治疗组口服螺旋藻胶囊,3粒/次,3次/d,其他治疗同对照组。两组21 d为1个化疗疗程,均连续治疗4个疗程。观察两组患者治疗的临床疗效,比较两组Karnofsky(KPS)评分、免疫功能指标的变化,同时观察两组药物的不良反应发生情况。结果治疗后,对照组和治疗组的总有效率分别为71.11%、88.89%,两组比较差异有统计学意义(P0.05)。治疗组患者经过治疗后KPS评分、CD3+、CD4+高于治疗前,CD8+低于治疗前,同组比较差异有统计学意义(P0.05)。治疗组患者治疗后Karnofsky评分、CD3+、CD4+高于对照组,CD8+低于对照组,两组比较差异具有统计学意义(P0.05)。治疗过程中,两组患者均可发生白细胞降低、血小板减少、恶心呕吐、腹泻、贫血、口腔黏膜炎症等毒副反应,但治疗组的发生率低于对照组,两组比较差异有统计学意义(P0.05)。结论螺旋藻胶囊联合紫杉醇、顺铂治疗晚期宫颈癌能提高患者的临床疗效,改善患者的生活质量,提高患者的免疫功能,还可减少化疗药物的毒副作用,值得在临床上进一步推广应用。