胸腺肽、胸腺五肽、胸腺法新之间的区别,应如何选择?
时间:2022-03-02 12:09:07 热度:37.1℃ 作者:网络
作为人体的天然屏障的自身免疫力,对内可以维持人体稳态,对外可防御侵扰。但对于自身免疫力低下的癌症患者来说,胸腺肽、胸腺五肽、胸腺法新则成了提高免疫力的有力武器。
他们到底是什么呢?我们得先来了解一下胸腺。
胸腺是免疫系统的一个特殊的原发性淋巴器官。在胸腺内,胸腺细胞淋巴细胞或T细胞成熟。T细胞对适应性免疫系统至关重要,身体特别适应外来入侵者。胸腺位于胸部前部、纵隔前部、胸骨后方和心脏前方。而胸腺肽类即为胸腺激素,能够调节免疫系统,对机体的免疫反应具有激活作用,可以增加集体的免疫应答,最终达到增加机体抗病和抗感染能力,又称免疫刺激剂。
胸腺肽(thymosin):是胸腺组织分泌的具有生理活性的一组多肽。临床上常用的胸腺肽是从小牛胸腺发现并提纯的有非特异性免疫效应的小分子多肽。
胸腺五肽(thymopentin):由缬氨酸、精氨酸、赖氨酸、酪氨酸、天门冬氨酸五种氨基酸组成,是胸腺生成素Ⅱ的有效部分。我国目前胸腺五肽制剂是以氨基酸为原料,作为人工合成化合物。胸腺五肽有结构明确,纯度较高等特点。
胸腺法新(thymalfasin):又叫胸腺肽α1,是由胸腺素组分 5(TF-5) 中分离纯化分离出的一种小分子生物活性多肽,具有较高的免疫增强活性。
那么他们之间到底该如何选择呢?我们就按照以下几个方向进行药物之间的对比:
安全性、有效性
药理作用
用法用量
价格,注意事项等等
随着★增加,药物越来越好!(先做表格总结)![图片](https://img.medsci.cn/images/20220301/a763cc4d5d8a4ad5b63fc14f32daa980.jpg)
![图片](https://img.medsci.cn/images/20220301/56e0b10e596d44588b7c3f84f0fa337b.jpg)
![图片](https://img.medsci.cn/images/20220301/18dac8d2541b4bd29476b62eb2a144c2.jpg)
Placebo: 安慰剂
Thymosinalpha 1:胸腺法新
SQ:皮下注射
BIW:每周两次
Mos: 月
Responserate:定义为在12 个月随访时 HBV DNA 和 HBeAg 阴性的受试者的百分比
建议剂量:当用作单一疗法或与干扰素联合使用时,用于慢性乙型肝炎的ZADAXIN(胸腺嘧啶)的推荐剂量为1.6mg(900μg/m2),每周两次皮下给药,持续6至12个月。体重小于40 kg 的患者应接受40 μg/kg 的胸腺法新剂量。
治疗慢性丙肝有效性(HCV):![图片](https://img.medsci.cn/images/20220301/a878b8f682fb4ac795ec938fd14f0793.jpg)
Placebo:安慰剂
Thymosinalpha 1:胸腺法新
SQ:皮下注射
Qd: 一日一次
BIW:每周两次
TIW:每周三次
Mos: 月
Responserate:定义为在12 个月随访时 HBV DNA 和 HBeAg 阴性的受试者的百分比
在癌症患者中:![图片](https://img.medsci.cn/images/20220301/62fb0cb969444deb82d8451a6398e47c.jpg)
Placebo:安慰剂
Thymosinalpha 1:胸腺法新
Ifosfamide: 异环磷酰胺
Dacarbazine:达卡巴嗪
SQ:皮下注射
BIW:每周两次
TIW:每周三次
Mos: 月
Responserate:定义为在12 个月随访时 HBV DNA 和 HBeAg 阴性的受试者的百分比
TACE: 一种破坏肿瘤的技术,其中将管子引导到肿瘤的动脉血液供应中,并引入药物,肌肉碎片或合成球体以阻塞动脉。
radiationtherapy:放疗
diseaseprogression:疾病进展
Follow- up:随访
建议剂量:用于癌症的日达仙(ZADAXIN)的推荐剂量为1.6mg(900μg/ m2),皮下注射6个月,或在治疗期间在化疗周期之间给予。
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