CN1043732C - 治疗口腔糜烂面的新型药膜 - Google Patents

治疗口腔糜烂面的新型药膜 Download PDF

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CN1043732C
CN1043732C CN94119441A CN94119441A CN1043732C CN 1043732 C CN1043732 C CN 1043732C CN 94119441 A CN94119441 A CN 94119441A CN 94119441 A CN94119441 A CN 94119441A CN 1043732 C CN1043732 C CN 1043732C
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CN1111505A (zh
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顾杨
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Dalian Medical University
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Dalian Medical University
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Abstract

一种专门用于治疗口腔糜烂面的新型药膜,制取该药膜溶液以羧甲基纤维素与山梨醇、甘油作为膜基质,含有表皮生长因子EGF、氧化锌和促进核糖核酸合成的细胞内能量ATP药物成份,其特征在于该药膜的溶液中含有EGF浓度为15~150ng/ml、ZnO浓度为8~12μg/ml、ATP浓度为1.0~2.0μg/ml。上述药膜可直接放入患者口腔内患部,使其缓慢溶化吸收。经临床试用证实,该药膜治疗口腔糜烂面具有止痛快、伤口愈合快,复发间隙延长等优点,且无任何毒副作用,属于一种治疗口腔糜烂面理想的新型药物和剂型。

Description

治疗口腔糜烂面的新型药膜
本发明涉及一种专门用于治疗口腔糜烂面的新型药膜。
复发性阿弗它(RAU)是最常见的口腔粘膜糜烂性病变,属于人类常见疾病之一,其发病率仅次于龋病。有关学者经过长期研究发现,RAU的发病与免疫紊乱、微循环失控、口腔菌群失调及微量元素和维生素的缺乏有关,但尚无法肯定RAU的病因及发病机理,因此对RAU的治疗也就无从谈起对症下药,其治疗效果也是可想而知的。
RAU给患者带来的痛苦是十分明显的:周期性地发作,持续疼痛的糜烂面,且口腔糜烂面需要经过大约7-21天才能自然愈合。
治疗口腔糜烂面除全身用药外,比较可取的治疗方案是局部粘用药膜。其主成份为:皮质激素,如抗菌素和促微循环药如梓柳碱。其缺点是该药物对口腔糜烂面没有明显的促愈合作用,只能在口腔内短短停留时间里,起到一定止痛作用。
很显然,正如一切事物的存在有着其自身不同特点一样,RAU亦有其自身特点。经糜烂部位活检后在光镜和电镜下发现,属于非特异性炎症,其发病有其周期性、自愈性、不定位性,非诱导性,并有遗传倾向。鉴于上述特点,发明人认为RAU的发病机理是:口腔粘膜上皮细胞生长节奏紊乱;其病因是免疫系统自然调控、基因水平的病理性调控和唾液中EGF浓度的波动。前两个病因的作用是口腔粘膜上皮细胞EGFR关闭;后一个病因的作用是口腔粘膜上皮细胞维持正常代谢的EGF量的减少。
鉴于现有技术状况,结合形成口腔糜烂疾病的病因机理,本发明的目的在于提供一种含有表皮生长因子EGF及其它药物,专门用于治疗口腔糜烂面的新型药膜。
表皮生长因子自被发现以来,已广泛用于角膜、鼓膜溃疡、胃溃疡及烧伤创面的修复。EGF是人体内正常的激素,唾液中的生理量为0.2~2ng/ml。EGF在细胞培养中对口腔粘膜上皮生长的促进作用已被证实,但直接用含有EGF药膜形式治疗口腔糜烂面尚未见过有关报道。
一种治疗口腔糜烂面的新型药膜,该药膜以羧甲基纤维素、山梨醇和甘油作为膜基质,溶于蒸馏水制成含有药物成份的药膜溶液,其特征在于制取该药膜溶液中含有表皮生长因子EGF药物成份浓度范围为15~150ng/ml,含有ZnO药物成份浓度为8~12μg/ml。本发明所提供的药膜选用EGF浓度范围为15~150ng/ml,是根据人体唾液中EGF生理量0.2~2ng/ml和药膜在口腔中的平均释放速度和停留时间综合考虑确定的。EGF在微克(μg)~毫微克(ng)级中,促进细胞生长和抑制细胞生长同时存在。实验证实,偏ng级有利于促进细胞生长;偏μg有利于抑制细胞生长,而10ng~100ng在生理效应上无明显差异。以EGF唾液生理量上限为例,考虑药膜中的EGF同时还向唾液中释放,且释放速度快于向糜烂面释放速度,再加之药膜停留时间约30分钟,故药膜溶液中EGF浓度范围为15~150ng/ml为宜。另外,Zn2+能提高EGF促进DNA合成,上述药膜溶液中可加入药物成份浓度范围为8~12μg/mlZnO粉。
上述药膜溶液中还可加入促进DNA合成的细胞内能量ATP药物成份,其浓度范围为1~2μg/ml。
上述药膜基质经过多次实验确定用羧甲基纤维素类,其厚度为0.3cm(湿厚)或0.1cm(干厚),上述药膜可在口腔中缓慢溶解,持续时间为15分钟~45分钟(与放置部位有关)。
本发明通过选择合适的膜基质溶于蒸馏水,并配以适量的EGF和ZnO以及ATP,不仅使EGF直接以成膜方式治疗口腔糜烂面成为现实,更重要的是给定了EGF和ZnO以及ATP的治疗浓度。本发明提供的药膜经临床使用证实具有快速止痛、快速愈合,无任何毒副作用等优点,其有效率为90%以上,完全优于以往的治疗方法。
下面介绍本发明一个具体实施例及其治疗效果。
一、制膜原料及重量
1.膜基质:羧甲基纤维素37.5g、山梨醇31.25g、甘油19.75ml、蒸馏水1000ml。
2.药物:EGF0.15mg、ZnO10mg、ATP2mg。
二、制膜工艺
1.先将山梨醇溶入水中,待其完全溶解后再将羧甲基纤维素均匀地撒在水面上浸湿,静置24小时,制成浸液;
2.在研杯中盛甘油加入ZnO,仔细研磨均匀,再均匀混入上述浸液中;
3.EGF和ATP可溶于蒸馏水约10ml中,均匀混入上述浸液中,甘油亦可单独均匀混入浸液中;
4.制成的药膜溶液中约含有药物成份EGF147.09ng/ml、ZnO9.81μg/ml、ATP1.96μg/ml。
5.用玻璃平板制膜,自然干燥后切成小块膜。
三、治疗效果
本发明经临床试用,针对患者就诊时原靡烂面积、愈合时间、止痛时间、复发病频率、复发时间指标进行观察,通过临床137例实验结果统计分析,证明含有EGF和ZnO的药膜治疗效果,其有效率为90.9%;含有EGF、ZnO和ATP的药膜治疗效果,其有效率为90.6%。

Claims (3)

1.一种治疗口腔糜烂面的新型药膜,该药膜以羧甲基纤维素、山梨醇和甘油作为膜基质,溶于蒸馏水制成含有药物成份的药膜溶液,其特征在于制取该药膜溶液中含有表皮生长因子EGF药物成份浓度范围为15~150ng/ml,含有ZnO药物成份浓度为8~12μg/ml。
2.根据权利要求1所述的新型药膜,其特征在于制取该药膜溶液中含有促进核糖核酸DNA合成的细胞内能量ATP药物成份,其浓度为1~2μg/ml。
3.根据权利要求2所述的新型药膜,其特征在于制取该药膜溶液所含各药物成份浓度分别约为:EGF147.09ng/ml、ZnO9.81μg/ml、ATP1.96μg/ml。
CN94119441A 1994-12-22 1994-12-22 治疗口腔糜烂面的新型药膜 Expired - Fee Related CN1043732C (zh)

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CN101278948B (zh) * 2008-05-23 2011-04-13 大连大学 一种生物型药膜及其制备方法
CN113274538B (zh) * 2021-05-28 2022-09-06 中国科学院过程工程研究所 一种具有创面主动修复功能的bFGF缓释纳米敷料及其制备方法和应用

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EP0398619A2 (en) * 1989-05-16 1990-11-22 Ethicon, Inc. Stabilized compositions containing epidermal growth factor

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* Cited by examiner, † Cited by third party
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EP0398619A2 (en) * 1989-05-16 1990-11-22 Ethicon, Inc. Stabilized compositions containing epidermal growth factor

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