CN108323763A - 一种富硒组合物及制剂的应用 - Google Patents
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Abstract
本发明涉及一种富硒组合物及制剂的应用。具体是作为制备解重金属毒的药品、保健食品、功能性普通食品、特殊医学配方食品、特殊膳食食品的应用,属于大健康应用技术领域。本发明选用与镉联合作用对LLC‑PKl细胞脂质过氧化的影响、对氟中毒动物生化指标的影响、对铅镉汞联合损害的拮抗作用几项技术验证,发现该富硒组合物及制剂具有明显的解重金属毒效果,因此可在解重金属毒方面进行应用。
Description
技术领域
本发明涉及一种富硒组合物及制剂的应用。具体是作为制备解重金属毒的药品、保健食品、功能性普通食品、特殊医学配方食品、特殊膳食食品的应用,属于大健康应用技术领域。
技术背景
一方面,重金属污染作为一个日渐被人们关注的环境问题,其产生的原因及影响都备受社会关注。其中,矿山开采,金属冶炼,重金属加工,化工废水,化石燃料的大规模应用,以及施用的农药化肥和生活垃圾等人为污染源,已经严重污染了生态环境,而且威胁了人类及其他生物的生存与安全。
另一方面,生物体过量摄入重金属能够使蛋白质结构发生不可逆的改变,让机体内催化酶丧失催化化学反应功能、细胞膜表面的载体不能运入营养物质和排出代谢废物、肌球蛋白和肌动蛋白无法完成肌肉收缩,从而影响组织细胞功能,让体内细胞无法获得营养、排除废物、产生能量、细胞结构崩溃和功能丧失,进而影响机体健康,给人类带来极大的危害。随着人类工业的发展,研究和探索一款能够对重金属有很好的解毒作用的产品就显得尤为重要且迫在眉睫。
申请号为201810104156.2的发明专利,公开了一种富硒组合物及制剂,其制备方法和应用。作为该专利的发明人,在实施该专利的过程中不断的探索和研究,开辟了富硒组合物及制剂的新用途。
发明内容
本发明的目的在于开辟申请号为201810104156.2,一种富硒组合物及制剂,其制备方法和新用途。
本发明的目的是采用以下技术方案来实现的。
本发明选用与镉联合作用对LLC-PKl细胞脂质过氧化的影响、对氟中毒动物生化指标的影响、对铅镉汞联合损害的拮抗作用几项技术验证,发现该富硒组合物及制剂具有明显的解重金属毒效果,因此可应用于解重金属毒。
具体实施方式:
下面通过具体实施例对本发明作进一步说明,但不以任何方式对本发明限制,基于本发明教导所作的任何变化或替换,均属本发明保护范围。
实施例1:组合物料的制备
富硒酵母:直接购置保健品营养素补充剂原料,经检测硒含量(以Se计)为0.07%。
维生素C:直接购置食品级原料,经检测维生素C含量(以L-抗坏血酸计)为99.79%。
乳糖、预胶化淀粉、硬脂酸镁:直接购置食品级原料。
实施例2:富硒乳化物制备
富硒乳化物按昆明朗盛生物科技有限公司《一种富硒组合物及制剂,其制备方法和应用》(申请号:201810104156.2)制备。经检测富硒乳化物中硒含量为0.018%。
实施例3:组合物制备
取实施例2制备的富硒乳化物,按昆明朗盛生物科技有限公司《一种富硒组合物及制剂,其制备方法和应用》(申请号:201810104156.2)制备组合物,经检测组合物中硒含量为0.0062%,维生素C含量为19.96%。
为了更进一步对本发明技术效果进行说明,本发明选取实施例3所制备的组合物作为试验样品,编号为④。选取实施例1准备的富硒酵母、维生素C、实施例2制备的富硒乳化物、编号依次为①、②、③。开展解重金属毒的比较试验,结果如下:
1.与镉联合作用对LLC-PKl细胞脂质过氧化的影响
试验动物及器材:氯化镉(CdCl2)(纯度≥98.O%),胰蛋白酶、四甲基偶氮唑盐、二甲基亚砜;RPMI 1640培养、小牛血清,SOD、GSH-Px、MDA试剂盒购自南京建成生物工程研究所。主要仪器有:酶标仪、DU-650紫外可见分光光度计。
造模、分组及实验:LLC-PKl细胞培养。培养液选用RPMI 1640,加10%小牛血清和双抗(青霉素和链霉素各100U/ml),于恒温细胞培养箱(37℃,5%C02)中培养,待细胞贴壁生长约90%传代,每周传代2-3次。
实验分为空白对照组和实验组。实验组又分为①、②、③、④组。每组各设6个平行样。
⑴.四甲基偶氮唑盐(MTT)比色法
取传代生长达90%的细胞用0.25%的胰酶消化制成单细胞悬液,并调整细胞浓度,180μl/孔,使接种于96孔培养板的细胞数约1×104/孔,并设置无细胞的空白孔。放置于37℃、5%C02培养箱中12h,更换无血清RPMI 1640培养液12h后,加入氯化镉或同时加入①、②、③、④并对细胞分别染毒12h,再加5mg/ml MTT,20μl/孔,培养4h后小心弃去孔内液,每孔加DMSO 150μl,充分振摇15min后用酶标仪于570nm处测各孔吸光度值(A)。各剂量组取平均值,根据实验公式,计算细胞的相对存活率:
细胞相对存活率(%)=实验组A/对照组A×100%。
⑵.SOD、GSH-Px、MDA的检测
氯化镉分别与①、②、③、④联合作用对LLC-PKl细胞染毒12h后,取培养上清液用于SOD、GSH-Px、MDA的测定。黄嘌呤氧化酶法测定SOD活力,以催化GSH反应速度表示GSH-Px的活力,TBA法测定MDA含量。结果见表1、2、3。
表1镉对LLC-PK1细胞增殖的影响(12h)
CdCl2浓度(μmol/L) | 0 | 20 | 40 | 60 | 80 | 100 |
Cell相对存活率(%) | 100 | 64 | 22 | 10 | 9 | 8 |
由表1可以看出,20μmol/L CdCl2已呈现明显的毒性效应,细胞的相对存活率(64%)明显降低。随着CdCl2浓度的增加,其毒性作用逐渐增大。
表2各组与镉联合作用对LLC-PK1细胞活力的影响(12h)
从表2可以看出,样品①、②、③、④与30μmol/L CdCl2联合作用的细胞存活率明显高于与30μmol/L CdCl2单独作用组,样品④相较于样品①、②、③细胞存活率显著提高(p<0.01),显示出良好的改善作用。
表3与镉联合作用LLC-PK1细胞12h培养液S0D、GSH-Px活力与MDA含量变化
从表3看出:样品④组较CdCl2组及样品①~③组相比,MDA含量有显著性下降,表明样品④组对镉引起的脂质过氧化具有显著的拮抗作用,CuZn-SOD、Mn-SOD和GSH-Px均有显著性升高,这可能由于脂质过氧化产物MDA等有害物质可使细胞膜受到损伤,细胞膜通透性增加而使细胞内CuZn-SOD、Mn-SOD、GSH-Px逸出到细胞外液中,使细胞外液中抗氧化酶活性随之上升;也可能是细胞对脂质过氧化的应激性反应而使抗氧化酶活性增加的结果。
实验结论
样品④(即实施例3所制备的组合物)与镉联合作用不仅使细胞相对存活率显著性升高,而且可对镉引起的脂质过氧化具有显著的拮抗作用。
2.对氟中毒动物生化指标的影响
考察指标确定:为了更进一步对本发明组合物技术效果进行说明,选取编号为①②③④作为试验样品,同时设置正常组和染毒组进行对照,以排除造模干扰与误差。开展对照组、实验组对大鼠腹主动脉取血,并测血清中Ca、P、ALP(碱性磷酸酶)含量,取右侧股骨测骨胶原和骨钙含量,胶原按羟脯氨酸含量换算。取左侧股骨测骨氟含量,留取24小时尿,测尿氟含量。
实验动物及器材:体重110~140g的Wistar大白鼠、偏食饲料:配方为:玉米面89%、黄豆面10%,精盐1%、碳酸钙1g/kg,200mg/L的氟化钠蒸馏水。
给样剂量:本发明所述组合物(试验样品④)60kg成年人给样剂量确定为1g/天,据此折算每天大鼠给样剂量为104.2mg/kg(其中含富硒酵母9.4mg,含维生素C 20.8mg)。依据等剂量给样可比原则确定样品③每天给样剂量为35.6mg/kg(其中含富硒酵母9.4mg),依据等剂量给样可比原则,结合国家药典或相关行业标准推荐日最高给样剂量确定样品②每天给样剂量为52.6mg/kg,样品①每天给样剂量为14.9mg/kg。
造模分组及实验:实验用体重110~140g的Wistar大白鼠60只,分为6个组,每组10只,雌雄各半。正常组(喂给大鼠偏食饲料+生理盐水);染毒组(偏食饲料+氟化钠蒸馏水);实验组:样品①组(偏食饲料+氟化钠蒸馏水+样品①);样品②组(偏食饲料+氟化钠蒸馏水+样品②);样品③组(偏食饲料+氟化钠蒸馏水+样品③);样品④组(偏食饲料+氟化钠蒸馏水+样品④)。饲养两个月后,用乙醚麻醉,腹主动脉取血,并测血清中Ca、P、ALP(碱性磷酸酶)含量,取右侧股骨测骨胶原和骨钙含量,胶原按羟脯氨酸含量换算。取左侧股骨测骨氟含量,留取24小时尿,测尿氟含量。实验结果详见表4、表5。
表4:各组大鼠中血清中Ca、P、ALP(碱性磷酸酶)含量
表5:各组大鼠中骨胶原、骨钙、尿氟、骨氟的含量
从表4和表5看出:与正常组相比,染毒组血清Ca含量显著降低(p<0.01),ALP(P<0.01)、尿氟(P<0.01)、骨氟(P<0.01)值均显著增高,说明染毒大鼠模型成功建立。
样品④组较染毒组及样品①②③组Ca含量显著增加,ALP值显著降低、尿氟值显著增高,本发明所述富硒组合物(样品④)能显著增加血清中的Ca含量,显著降低血清中ALP的含量,并且增加尿液中氟的排泄量。说明本发明所述组合物(样品④)可以对于氟致血清中钙含量降低、ALP增加及骨质破坏进行有效改善。
3.对铅镉汞联合损害的拮抗作用
考察指标确定:为了更进一步对本发明组合物技术效果进行说明,选取编号为①②③④作为试验样品,同时设置正常组和染毒组进行对照,以排除造模干扰与误差。开展对照样品、试验样品对小鼠血清中丙氨酸转氨酶(ALT)和碱性磷酸酶(ALP)活力、全血中谷胱甘肽过氧化物酶GSH-Px活力和骨髓嗜多染红细胞微核率试验。
实验动物及器材:昆明种小白鼠,体重18~25g,雌雄各半,测血清中丙氨酸转氨酶(ALT)和碱性磷酸酶(ALP)活力,测全血中谷胱甘肽过氧化物酶GSH-Px活力测定试剂盒以及配制染毒剂,取小鼠股骨,按GBl5193.5.94骨髓微核试验检测骨髓嗜多染红细胞微核率。
给药剂量:染毒剂量:乙酸铅12.8mg/kg(以铅计7mg/kg),CdCl2mg/kg(以镉计1mg/kg),HgCl2 0.95mg/kg(以汞计0.7mg/kg)①富硒酵母组(21.5mg/kg+染毒);②维生素C组(75.8mg/kg+染毒);③富硒乳化物组(51.3mg/kg+染毒)含富硒酵母9.4mg;④组合物组(150mg/kg+染毒)含富硒酵母9.4mg,维生素C 20.8mg。
造模、分组及实验:取72只小鼠随机分成12组。每组6只,雌雄各半。设为正常组、染毒组、实验①②③④组。分2批进行,第1批6组动物,每日上午染毒,下午进行给药。连续染毒3天。第12天处死。第2批6组动物比第1批动物晚4天进行,当天上午染毒,次日上午进行给药。连续染毒3天。第12天处死。动物在灌胃后给予正常饮水和饲料,且正常组给予同等剂量的生理盐水。实验结束时,摘除小鼠眼球法采血,分别置入肝素抗凝管获得全血和非抗凝管获得血清,于4℃冰箱保存,用于酶活力测定。取小鼠右肢股骨,进行骨髓细胞微核试验。详见结果见表6。
表6:血清中ALT和ALP值(U/L)全血中GSH-Px值及鼠骨髓嗜多染红细胞微核率
实验结论:
从表6可以看出:与正常组相比,染毒组血清ALT数值(P<0.01)、全血GSH-Px酶活性均显著降低(P<0.01),骨髓嗜多染红细胞微核率显著升高(P<0.01),说明染毒组小鼠模型成功建立。
正常组、染毒组及样品①②③④对于ALP值的差异无显著性,表明急性染毒对ALP值没有显著性。样品④组较染毒组及样品①②③组ALT(P<0.01)数值明显升高,GSH-Px(P<0.01)数值有提升,骨髓嗜多染红细胞微核率(P<0.01)显著降低,说明本发明所述组合物(样品④)能有效提升染毒条件下血清中丙氨酸转氨酶(ALT)(P<0.01)和全血中谷胱甘肽过氧化物酶GSH-Px(P<0.01)活力,且降低骨髓嗜多染红细胞微核率(P<0.01),能有效改进铅镉汞联合对小鼠的重金属染毒作用。
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1.一种富硒组合物及制剂的应用,其特征在于该富硒组合物作为制备解重金属毒的药品、保健食品、功能性普通食品、特殊医学配方食品、特殊膳食食品的应用。
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