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韩凌  樊莉  张翮  吕磊  邹豪  鲁莹 《药学实践杂志》2019,37(2):135-140,150
目的 研制一款具有防水、防晒、防水母蜇伤的多效防护霜,并对其处方进行优化,使其具有较好的防水性能和较高的防晒指数(SPF值),同时具有适宜的黏度和较好的稳定性。方法 通过测定SPF值、关键波长和防水性能对处方中的成膜剂吡咯烷酮/十六烯共聚物(Antaron V-216)的质量分数进行优化。然后以黏度、离心稳定性和冻融稳定性为考察指标,使用星点设计-效应面法对多效防护霜中的两种乳化剂和氯化钙水溶液的质量分数进行优化。结果 当成膜剂Antaron V-216质量分数为3%时,霜剂的SPF值提升较为显著。当乳化剂月桂基聚乙二醇/聚丙二醇-18/18二甲基硅氧烷(DC5200)质量分数为0.76%,乳化剂鲸蜡基聚乙二醇/聚丙二醇-10/1二甲基硅氧烷(EM180)质量分数为2.32%,氯化钙水溶液质量分数为44.86%时,霜剂具有适宜的黏度和较好的稳定性。结论 经过优化的处方具有较高的防水性能和SPF值,黏度适宜,稳定性较好。  相似文献   
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We describe a patient stung by an unknown jellyfish species offshore in Far North Queensland. The sting caused immediate and severe pain, multiple whip‐like skin lesions and constitutional symptoms. The jellyfish tentacular nematocysyts were similar to, but distinct from, those of Carukia barnesi, a cause of the ‘Irukandji’ syndrome. The patient’s symptoms largely resolved over seven months and were associated with elevated cardiac troponin levels, in the absence of other evidence of cardiac disease. This case highlights the envenomation risks associated with marine recreation, and the need for critical evaluation of cardiac troponin assays and for further research in marine toxicology.  相似文献   
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目的:分离发形霞水母刺丝囊毒素(nematocyst venom,NV)与无刺丝囊触手提取物(tentacle-only extract,TOE),比较二者的溶血活性,分析其影响因素.方法:采用自溶、离心方法分离发形霞水母NV和TOE,比较二者的溶血活性,观察提取物浓度、温度和pH值等因素对二者溶血活性的影响.结果:成功分离到NV与TOE;二者浓度相关溶血活性曲线均呈"S"形,溶血分数50%时所对应的质量浓度(HU50)分别为8μg/ml和67μg/ml,前者溶血活性强度约为后者的8.4倍;温度对二者溶血活性影响较大,最大溶血活性都出现在40℃;pH值对二者溶血活性也有影响,在pH 8处二者都具有最大的溶血活性,但后者较前者更为敏感.结论:发形霞水母毒素分离产物NV和TOE均具有溶血活性,且前者强于后者;二者溶血活性受浓度、温度和pH值的影响.  相似文献   
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Background:  The presence of jellyfish along coasts constitutes a potentially serious public health problem because of the toxic effects of contact with them.
Objective:  To determine the epidemiology of jellyfish stings in the Province of Lecce, Italy, in 2007.
Methods:  The study involved the gathering and processing of data on patients seeking medical treatment at summer first aid centres and hospitals along the coast of Salento following contact with jellyfish.
Results:  In 2007, 446 bathers sought medical assistance following contact with jellyfish. The spatial distribution indicates a greater frequency of stings sustained along the Adriatic coast, while the time analysis shows patterns related to wind direction. Most of the injuries were seen in persons aged between 1 and 10 years and in females. In 24% of cases, injuries were sustained to several parts of the body, while single injuries were mainly to the lower limbs (33%). In 4.9% of cases, there were complications, including one case of anaphylactic shock.
Conclusion:  In the light of the significant level of medical assistance provided, there is a need to identify suitable strategies that will guarantee the best response in terms of both prevention and treatment.  相似文献   
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