CN115039883B - 使用植物乳杆菌tsp05分离株来降低嘌呤含量以及尿酸水平 - Google Patents
使用植物乳杆菌tsp05分离株来降低嘌呤含量以及尿酸水平 Download PDFInfo
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- CN115039883B CN115039883B CN202110623593.7A CN202110623593A CN115039883B CN 115039883 B CN115039883 B CN 115039883B CN 202110623593 A CN202110623593 A CN 202110623593A CN 115039883 B CN115039883 B CN 115039883B
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- Prior art keywords
- lactobacillus
- cgmcc
- tsp05
- uric acid
- lactobacillus plantarum
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Abstract
本发明涉及使用植物乳杆菌TSP05分离株来降低嘌呤含量以及尿酸水平。本发明揭示该植物乳杆菌TSP05分离株可被用来降低一可食性材料的嘌呤含量以及血中尿酸水平。
Description
【技术领域】
本发明有关使用植物乳杆菌(Lactobacillus plantarum)TSP05(CGMCCNo.16710)来降低一可食性材料的嘌呤含量。本发明亦有关使用植物乳杆菌TSP05(CGMCCNo.16710)来降低血中尿酸水平。
【背景技术】
尿酸(uric acid)是嘌呤代谢(purine metabolism)的最终氧化产物(finaloxidation product),会经由肾脏通过尿液而被排出体外。若过度摄取菇类(mushrooms)、豆类(legumes)、肉类与海鲜(seafood)等富含嘌呤的食品(purine-rich food),容易导致尿酸的代谢发生异常[包括尿酸的过度产生(overproduction)或排泄不足(underexcretion)],而使得血中尿酸的水平过高,进而引起痛风(gout)与高尿酸血症(hyperuricemia)等疾病,被称为尿酸代谢疾病(disorder of uric acid metabolism)。
由于现代人饮食习惯改变,尿酸代谢疾病的发生率(incidence)和盛行率(prevalence)已逐年增加,并且病患有年轻化的趋势。因此,如何有效地降低富含嘌呤的食品中的嘌呤以及降低血中尿酸水平进而治疗和/或预防尿酸代谢疾病,即成一个极为重要的研发课题。
目前已知有许多物理性或化学性方法(例如加工处理、吸附处理等)被用于降低食品中的嘌呤化合物含量,然而这些方法不仅操作较为繁杂,还需去除额外添加的化学试剂。而目前用于降低血中尿酸水平的药物包括尿酸生成抑制剂(uricogenesis inhibitors)与尿酸排泄剂(uricosuric agents),然而,这些药物在临床应用上存在有疗效不佳以及容易产生副作用(side effect)的问题。
乳酸菌(lactic acid bacteria,LAB)属于一般被公认为安全的(generallyrecognized as safe,GRAS)并且是为人所熟悉与广泛使用的益生菌(probiotics),其已被发现到具有抑制肠胃道病原菌生长、缓和乳糖不耐症(lactose intolerance)、抗癌(anti-cancer)以及降血压(antihypertension)等功效。目前可作为益生菌使用的乳酸菌有许多种类,例如乳酸杆菌属(Lactobacillus)、乳球菌属(Lactococcus)、片球菌属(Pediococcus)、肠球菌属(Enterococcus)、链球菌属(Streptococcus)、双歧杆菌属(Bifidobacterium)、芽孢杆菌属(Bacillus)以及明串珠菌属(Leuconostoc)等。
已有研究尝试使用乳酸菌来降解嘌呤以及降低血中尿酸水平。例如,CN111388509 A揭示一种用于降解嘌呤以及降低血中尿酸的乳酸菌菌株,其选自于发酵乳酸杆菌(Lactobacillus fermentum)TSF331(CGMCC No.15527)以及罗伊氏乳酸杆菌(Lactobacillus reuteri)TSR332(CGMCC No.15528)中的至少一者。在该中国专利申请的实施例中,发酵乳酸杆菌TSF331与罗伊氏乳酸杆菌TSR332分别经由体外嘌呤分解实验而被证实能够有效地降解嘌呤。接着,发酵乳酸杆菌TSF331与罗伊氏乳酸杆菌TSR332分别经由动物实验而被证明具有降低血中尿酸水平的效用。
虽然已存在有上述文献报导,本领域中仍然存在有一需要去筛选出具有降解嘌呤以及降低血中尿酸的效用的乳酸菌以供产业界之用。
【发明内容】
于本发明中,申请人发现植物乳杆菌(Lactobacillus plantarum)TSP05(CGMCCNo.16710)不仅能够于体外降解嘌呤以及于体内降低血中尿酸,还能显著地提升发酵乳酸杆菌(Lactobacillus fermentum)TSF331(CGMCC No.15527)与罗伊氏乳酸杆菌(Lactobacillus reuteri)TSR332(CGMCC No.15528)的效用。
于是,在第一个方面,本发明提供一种用于降低可食性材料的嘌呤含量的方法,其包括:将具有嘌呤降解能力的微生物培养于该可食性材料中,其中该微生物是植物乳杆菌TSP05(CGMCCNo.16710)。
较佳地,该方法进一步包括同时将发酵乳酸杆菌(Lactobacillus fermentum)TSF331(CGMCC No.15527)以及罗伊氏乳酸杆菌(Lactobacillus reuteri)TSR332(CGMCCNo.15528)培养于该可食性材料中。
在第二个方面,本发明提供一种植物乳杆菌TSP05(CGMCCNo.16710)供应用于制备用来降低血中尿酸水平的组合物的用途。
在第三个方面,本发明提供一种用来降低血中尿酸水平的方法,其包括对有此需要的个体投予植物乳杆菌TSP05(CGMCCNo.16710)。
在第四个方面,本发明提供一种植物乳杆菌TSP05(CGMCCNo.16710)供应用于制备用来治疗和/或预防尿酸代谢疾病的组合物的用途。
较佳地,该尿酸代谢疾病选自于由下列所构成的群组:痛风、高尿酸血症、尿酸性肾石病、屡发性急性或慢性的痛风性关节炎、关节畸形、尿酸盐肾病变,以及它们的组合。
较佳地,该组成物进一步包含有发酵乳酸杆菌TSF331(CGMCCNo.15527)以及罗伊氏乳酸杆菌TSR332(CGMCC No.15528)。
较佳地,该组成物是药学组成物。
更佳地,该药学组成物进一步包含有药学上可接受的载剂。
更佳地,药学组成物呈供口服投药的剂型或非经肠道投药的剂型。
在第五个方面,本发明提供一种用于治疗具有或被怀疑具有尿酸代谢疾病的个体的方法,其包括对该个体投予植物乳杆菌TSP05(CGMCC No.16710)。
较佳地,进一步将发酵乳酸杆菌TSF331(CGMCC No.15527)与罗伊氏乳酸杆菌TSR332(CGMCC No.15528)拿来与植物乳杆菌TSP05(CGMCC No.16710)组合使用。
【附图说明】
下面结合附图及实施例来对本发明进行详细说明,所以本发明在上述以及其他目的与特征,可借由参照下文的描述、随文检附的权利要求书和伴随的图式而变得更为明显,附图中:
图1显示各组受试者的尿酸相对水平随着时间的变化。
【具体实施方式】
除非另外有所定义,在本文中所使用的所有技术性与科学术语具有本领域技术人员所共同了解的意义。本领域技术人员会认知到许多与那些被描述于本文中者相似或等效的方法和材料,它们可被用于实施本发明。当然,本发明决不受到所描述的方法和材料的限制。
本发明提供一种用于降低一可食性材料的嘌呤含量的方法,其包括:将一具有嘌呤降解能力的微生物培养于该可食性材料中,其中该微生物是植物乳杆菌(Lactobacillusplantarum)TSP05(CGMCCNo.16710)。
如本发明所使用的,术语“嘌呤含量”意指具有嘌呤骨架(purine skeleton)的化合物的含量,具有嘌呤骨架的化合物包括,但不限于:嘌呤核苷(purine nucleosides)[诸如肌苷(inosine)、鸟苷(guanosine)等]、嘌呤核苷酸(purine nucleotides)[诸如肌苷酸(inosinic acid)等]以及核酸(nucleic acid)。
依据本发明,该可食性材料可包括,但不限于:菇类食品(mushroom food)、豆类食品(legume food)、肉类食品(meat food)、内脏食品(organ food)、海鲜食品(seafood)以及酒精饮料(alcoholic beverages)。
如本文中所使用的,术语“培养(culturing)”、“发酵(fermentation)”以及“培育(cultivation)”可被交换地使用。
可了解到的是,有关培养的操作条件会进一步随着所使用的可食性材料的嘌呤含量、可食性材料与微生物的用量比例等因素而被变动,以便达到最佳的嘌呤降解效果。而这些操作条件的选择是本领域技术人员能例行性地自行决定的。
依据本发明,该培养可在一范围落在35℃至37℃内的温度下被进行。
依据本发明,该培养可在该可食性材料的制备期间或之后被进行。
较佳地,本发明的方法进一步包括同时将发酵乳酸杆菌(Lactobacillusfermentum)TSF331(CGMCC No.15527)以及罗伊氏乳酸杆菌(Lactobacillus reuteri)TSR332(CGMCC No.15528)培养于该可食性材料中。
依据本发明,所使用的植物乳杆菌TSP05(CGMCC No.16710)、发酵乳酸杆菌TSF331(CGMCC No.15527)以及罗伊氏乳酸杆菌TSR332(CGMCC No.15528)的菌数比可落在1:0.3:0.3至1:3:3的范围内。在本发明的一个较佳具体例中,所使用的植物乳杆菌TSP05(CGMCCNo.16710)、发酵乳酸杆菌TSF331(CGMCCNo.15527)以及罗伊氏乳酸杆菌TSR332(CGMCCNo.15528)的菌数比为1:0.6:0.6。在本发明的另一个较佳具体例中,该菌数比为1:1:1。
本发明亦提供一种植物乳杆菌TSP05(CGMCC No.16710)供应用于制备一用来降低血中尿酸水平的组合物的用途。本发明亦提供一种植物乳杆菌TSP05(CGMCC No.16710)供应用于制备一用来治疗和/或预防尿酸代谢疾病的组合物的用途。
依据本发明,该尿酸代谢疾病可包括,但不限于:痛风(gout)、高尿酸血症(hyperuricemia)、尿酸性肾石病(uric acid nephrolithiasis)、屡发性急性或慢性的痛风性关节炎(repeated acute or chronic gouty arthritis)、关节畸形(articularmalformation),以及尿酸盐肾病变(urate nephropathy)。
如本文中所使用的,术语“治疗(treating)”或“治疗(treatment)”尿酸代谢疾病意指该尿酸代谢疾病的严重性(severity)或该尿酸代谢疾病的症状(symptom)被减少(reduced),或该尿酸代谢疾病被部分地(partially)或完全地(entirely)消除(eliminated)。
如本文中所使用的,术语“预防(preventing)”或“预防(prevention)”尿酸代谢疾病意指一个体在还没有被诊断具有该尿酸代谢疾病时,消除(eliminate)或减少(reduce)该尿酸代谢疾病的发生率(incidence),以及减缓(slow)、延迟(delay)、控制(control)或减少(decrease)该尿酸代谢疾病的可能性(likelihood)或机率(probability)。
依据本发明,植物乳杆菌TSP05(CGMCC No.16710)可以是活菌或死菌、经浓缩的(concentrated)或未经浓缩的(non-concentrated)、液态(liquid)、糊状(paste)、半固态(semi-solid),或固态(solid)[例如,丸(pellet)、细颗粒(granule)或粉末(powder)],并且可以是经热去活的(heat-inactivated)、经冷冻的(frozen)、经干燥的(dried),或经冷冻-干燥的(freeze-dried)[例如,可呈冷冻干燥形式或喷雾/流化床干燥(spray/fluidbed dried)形式]。
较佳地,该组合物进一步包含发酵乳酸杆菌TSF331(CGMCC No.15527)以及罗伊氏乳酸杆菌TSR332(CGMCC No.15528)。
依据本发明,在该组合物中,植物乳杆菌TSP05(CGMCC No.16710)、发酵乳酸杆菌TSF331(CGMCC No.15527)以及罗伊氏乳酸杆菌TSR332(CGMCC No.15528)的菌数比可落在1:0.3:0.3至1:3:3的范围内。在本发明的一个较佳具体例中,植物乳杆菌TSP05(CGMCCNo.16710)、发酵乳酸杆菌TSF331(CGMCC No.15527)以及罗伊氏乳酸杆菌TSR332(CGMCCNo.15528)的菌数比为1:0.6:0.6。在本发明的另一个较佳具体例中,该菌数比为1:1:1。
依据本发明,该组合物可以是一药学组合物(pharmaceutical composition)。
依据本发明,该药学组合物可进一步包含有一被广泛地使用于药物制造技术的药学上可接受的载剂(pharmaceutically acceptable carrier)。例如,该药学上可接受的载剂可包含一种或多种选自于下列的试剂:溶剂(solvent)、缓冲液(buffer)、乳化剂(emulsifier)、悬浮剂(suspending agent)、分解剂(decomposer)、崩解剂(disintegrating agent)、分散剂(dispersing agent)、粘结剂(binding agent)、赋形剂(excipient)、稳定剂(stabilizing agent)、螯合剂(chelating agent)、稀释剂(diluent)、胶凝剂(gelling agent)、防腐剂(preservative)、润湿剂(wetting agent)、润滑剂(lubricant)、吸收延迟剂(absorption delaying agent)、脂质体(liposome)以及类似物。有关这些试剂的选用与数量落在本领域技术人员的专业素养与例行技术范畴内。
依据本发明,该药学组合物可利用本领域技术人员所详知的技术而被制造成一适合于口服投药(oral administration)或非经肠道投药(parenteral administration)的剂型(dosage form),这包括,但不限于:注射品(injection)[例如,无菌的水性溶液(sterile aqueous solution)或分散液(dispersion)]、无菌的粉末(sterile powder)、锭剂(tablet)、片剂(troche)、口含锭(lozenge)、丸剂(pellet)、胶囊(capsule)、分散性粉末(dispersible powder)或细颗粒(granule)、溶液、悬浮液(suspension)、乳剂(emulsion)、滴剂(drop)、糖浆(syrup)、酏剂(elixir)、浓浆(slurry)以及类似物。
本发明亦提供一种用来降低血中尿酸水平的方法,其包括对一有此需要的个体投予植物乳杆菌TSP05(CGMCC No.16710)。本发明亦提供一种用于治疗一具有或被怀疑具有尿酸代谢疾病的个体的方法,其包括对该个体投予植物乳杆菌TSP05(CGMCC No.16710)。
如本文中所使用的,术语“投予(administering)植以及“投药”可被交换地使用。
如本文中所使用的,术语“个体(subject)”意指任何感兴趣的哺乳类动物,诸如人(humans)、猴子(monkeys)、牛(cows)、绵羊(sheeps)、马(horses)、猪(pigs)、山羊(goats)、狗(dogs)、猫(cats)、小鼠(mice)以及大鼠(rats)。
依据本发明,植物乳杆菌TSP05(CGMCC No.16710)的投药剂量与投药次数会视下列因素而变化:要被改善的疾病的严重性,投药途径,以及要被改善的个体的体重、年龄、身体状况与反应。一般而言,植物乳杆菌TSP05(CGMCC No.16710)可呈单一剂量或分成多个剂量的形式而被口服地或非经肠道地投药。
较佳实施例的详细说明
本发明将就下面的实施例来做进一步说明,但应了解的是,这些实施例仅供例示说明用,而不应被解释为本发明的实施上的限制。
实施例
一般实验材料:
1.植物乳杆菌(Lactobacillus plantarum)TSP05(CGMCC No.16710)、发酵乳酸杆菌(Lactobacillus fermentum)TSF331(CGMCCNo.15527)以及罗伊氏乳酸杆菌(Lactobacillus reuteri)TSR332
(CGMCC No.15528):
在下面实验中所使用的这3种乳酸菌菌株皆已被公开于CN 111543639A中,并且已被保藏于中国台湾的食品工业发展研究所(Food Industry Research and DevelopmentInstitute,FIRDI)的生物资源保存及研究中心(Bioresource Collection and ResearchCenter,BCRC)(300新竹市食品路331号,中国台湾)。为表清楚,这3种乳酸菌菌株的相关信息(包括保藏编号以及保藏日期等)已被整合于下面表1中。
表1.各个乳酸菌菌株的相关信息
2.植物乳杆菌Lp323以及鼠李糖乳酸杆菌(Lactobacillus rhamnosus)
L-85:
在下面实验中所使用的这2种乳酸菌菌株是申请人从泡菜以及健康人类的肠道中所分离出。
一般实验方法:
1.高效能液相层析(high performance liquid chromatography,HPLC)分析:
在下面实验中,待测样品所含有的鸟苷(guanosine)、肌苷(inosine)、鸟嘌呤(guanine)、次黄嘌呤(hypoxanthine)以及尿酸(uric acid)的浓度使用下列HPLC分析仪器来进行测定:液相层析系统(厂牌为Shimadzu Corporation,型号为LC-20A)以及光二极体阵列检测器(photodiode array detector)(厂牌为HITACHI,型号为L-2455),而有关HPLC的各项操作参数与条件被显示于下面的表2中。
表2.HPLC的操作参数与条件
此外,为供比对,使用不同浓度的鸟苷、肌苷、鸟嘌呤、次黄嘌呤以及尿酸来分别作为校正标准品(control standard)并进行相同的分析,这些化学物质购自于Sigma。
实施例1.乳酸菌菌株在活体外降解嘌呤效用(in vitro purine degradationeffect)上的评估:
A、试验菌液的制备:
首先,将上面“一般实验材料”的第1与2项当中所述的5种乳酸菌菌株分别接种至补充有0.05%半胱氨酸(cysteine)的MRS肉汤培养基(MRS broth)(Difco)中,并于37℃下进行培养历时24小时,用来活化菌株。接着,将所形成的培养物分别以一为2%(v/v)的接种量接种至MRS肉汤培养基中,并于一厌氧条件下以及37℃下进行培养历时隔夜。之后,将所形成的培养物以3,000rpm来进行离心历时10分钟,接着去除上清液,而沉淀物(pellets)以适量的0.1M磷酸盐缓冲生理盐水(phosphate buffered saline,PBS)予以洗涤。接着,使用适量的PBS来予以散浮并将各个乳酸菌菌株调整成具有一为109CFU/mL的细菌浓度(以平板计数培养基来进行菌数计数),借此而分别得到各个乳酸菌菌株的菌液。部分的菌液被拿来作为下面表3所示的单菌实验组以及单菌比较组1至4的试验菌液,其余的菌液则依据表3所示以等体积(1:1或1:1:1)来相互混合以制得复合菌实验组以及复合菌比较组1至3的试验菌液。
表3各组试验菌液所含有的乳酸菌菌株
注:各组的试验菌液皆具有相同的细菌浓度(109CFU/mL)。
B、嘌呤降解能力的测定:
对各组试验菌液分别加入适量的肌苷(厂牌为Sigma,货号为I4125)以及鸟苷(厂牌为Sigma,货号为41113),而使肌苷与鸟苷的最终浓度分别为1.26mM,接着在一厌氧条件下于一恒温振荡培养箱(37℃、140rpm)中进行反应历时30分钟。
之后,将所得到的各组培养物取900μL并添加以100μL的0.1M过氯酸(perchloricacid,HClO4)以终止反应,继而通过离心来去除菌体并使用0.22μm的滤膜予以过滤,而由此所得到的各组待测样品分别依据上面“一般实验方法”的第1项当中所述的方法来进行HPLC以测定鸟苷与肌苷的浓度。
这2种嘌呤的残留率分别将反应后所测得的嘌呤浓度代入下列公式(1)而被计算出:
公式(1):A=(1-B/C)×100
其中:A=嘌呤残留率(%)
B=反应后所测得的嘌呤浓度(mM)
C=反应前的嘌呤浓度(mM)(亦即1.26mM)
所得到的结果被显示于下面的表4中。由表4可见,这个实验结果显示,与单菌比较组1相较下,单菌实验组的肌苷残留率没有明显的差异,而鸟苷残留率则有显著地降低,这表示:植物乳杆菌TSP05相较于其他的植物乳杆菌菌株具有特别优异的鸟苷降解能力。
另外,复合菌比较组1的2种嘌呤残留率皆介于单菌比较组2与3间,这表示发酵乳酸杆菌TSF331(CGMCC No.15527)与罗伊氏乳酸杆菌TSR332(CGMCC No.15528)的组合使用没有产生协同效应(synergistic effect)。相对地,复合菌实验组的2种嘌呤残留率皆显著地低于复合菌比较组1、单菌实验组以及单菌比较组2与3所具者,这表示:植物乳杆菌TSP05(CGMCC No.16710)在与发酵乳酸杆菌TSF331(CGMCC No.15527)以及罗伊氏乳酸杆菌TSR332(CGMCC No.15528)组合使用下产生了协同效应而大幅提升了整体的嘌呤降解能力。特别地,从复合菌比较组2与复合菌比较组3及其对应组别来看,其他的植物乳杆菌菌株或鼠李糖乳酸杆菌菌株则无法通过与发酵乳酸杆菌TSF331(CGMCC No.15527)以及罗伊氏乳酸杆菌TSR332(CGMCC No.15528)组合使用来展现此效用,反而会对整体的嘌呤降解能力产生负面影响。
表4各组所测得的嘌呤残留率
为了进一步验证上述结果,将各组的待测样品分别依据上面“一般实验方法”的第1项当中所述的方法来进行HPLC以测定鸟嘌呤、次黄嘌呤以及尿酸的浓度。
所得到的结果被显示于下面的表5中。由表5可见,首先,各组皆无尿酸产生。再者,对照表4的结果可见,鸟苷以及肌苷的残留量与其代谢产物鸟嘌呤以及次黄嘌呤的生成量大致呈负相关性,亦即表5中各组展现出相对应的嘌呤降解结果,因而亦可观察到植物乳杆菌TSP05(CGMCC No.16710)显著优于其他的植物乳杆菌菌株的降解效用,以及植物乳杆菌TSP05(CGMCC No.16710)与发酵乳酸杆菌TSF331(CGMCC No.15527)以及罗伊氏乳酸杆菌TSR332(CGMCC No.15528)组合使用所产生的协同效应。
表5各组所测得的嘌呤代谢产物的生成量
这个实验结果显示:植物乳杆菌TSP05(CGMCC No.16710)具有优异的嘌呤降解能力而被预期可应用于降低食品中的嘌呤含量,并且可进一步与发酵乳酸杆菌TSF331(CGMCCNo.15527)以及罗伊氏乳酸杆菌TSR332(CGMCC No.15528)组合使用来增强此效用。
实施例2.本发明的乳酸菌菌株培养物在活体内降低血中尿酸水平(blood uricacid level)上的效用评估
实验个体:
参与本试验的实验对象来自于丰华生物科技股份有限公司(GLAC BIOTECH CO.,LTD.)的员工及其亲友,本试验共计有125位年龄介于18岁至65岁且血中尿酸浓度约为7至8mg/dL的受试者参加,其中包括66位男性与59位女性。
实验材料:
将上面“一般实验材料”的第1项当中所述的植物乳杆菌TSP05(CGMCC No.16710)、发酵乳酸杆菌TSF331(CGMCC No.15527)以及罗伊氏乳酸杆菌TSR332(CGMCC No.15528)分别接种至MRS肉汤培养基中,并于一厌氧条件下以及37℃下进行培养历时隔夜。在以平板计数培养基来进行菌数计数后,进行冷冻干燥处理,借此得到各个菌株的菌粉(各自具有一为1011CFU/g的细菌浓度)。此外,将植物乳杆菌TSP05(CGMCC No.16710)、发酵乳酸杆菌TSF331(CGMCC No.15527)以及罗伊氏乳酸杆菌TSR332(CGMCC No.15528)的部分菌粉以1:0.6:0.6的重量比进行混合,借此而得到含有该3种菌株的复合菌粉(具有1011CFU/g的细菌浓度)。之后,将各个菌株的菌粉与复合菌粉分别与麦芽糊精(maltodextrin)以一为2:3的重量比来进行混合并制成胶囊,每个胶囊含有2×1010CFU的菌数。
实验方法:
首先,将所有的受试者随机地分成1个TSP05组、1个TSF331组、1个TSR332组、1个复合菌组,以及1个对照组,每组n=25,其中TSP05组、TSF331组、TSR332组以及复合菌组的受试者被口服投药以含有对应菌粉的胶囊,而对照组的受试者则被口服投药以等重量的麦芽糊精。各组受试者每天被投药一颗,投药时间总共历时60天。在投药开始前以及投药开始后的第30天以及60天,通过易立测尿酸监测系统(厂牌为EasyTouch,型号为ET-301)来测定各组受试者于空腹时的血中尿酸浓度。
尿酸相对水平通过将所测得的血中尿酸浓度代入下列公式(2)而被计算出:
公式(2):D=E/F×100
其中:D=尿酸相对水平(%)
E=投药后所测得的血中尿酸浓度(mg/dL)
F=投药前所测得的血中尿酸浓度(mg/dL)
结果:
图1显示在各组受试者的尿酸相对水平随着时间的变化。从图1可见,TSP05组、TSF331组、TSR332组以及复合菌组的血中尿酸相对水平皆会随着时间而呈现出下降的趋势。特别地,复合菌组的下降情形显著优于TSP05组、TSF331组以及TSR332组所具者。这个实验结果显示:植物乳杆菌TSP05(CGMCC No.16710)能够有效降低血中尿酸,并且可进一步与发酵乳酸杆菌TSF331(CGMCCNo.15527)以及罗伊氏乳酸杆菌TSR332(CGMCC No.15528)组合使用来增强此效用。
综合以上实验结果,申请人认为:植物乳杆菌TSP05(CGMCCNo.16710)的单独使用或者进一步与发酵乳酸杆菌TSF331(CGMCC No.15527)以及罗伊氏乳酸杆菌TSR332(CGMCCNo.15528)组合使用不仅可于体外降低食品中的嘌呤含量来减少其摄入,亦可直接于体内改善尿酸的代谢,而被预期可供用于制备一用来治疗和/或预防尿酸代谢疾病(disorderof uric acid metabolism)的产品。
于本说明书中被引述的所有专利和文献以其整体被并入本申请作为参考资料。若有所冲突时,本申请详细说明(包含界定在内)将占上风。
虽然本发明已参考上述特定的具体例被描述,明显地在不背离本发明的范围和精神下可作出很多的修改和变化。因此意欲的是,本发明仅受如随文检附的权利要求书所示者的限制。
生物材料保藏信息说明
保藏编号:CGMCC No.15527
分类命名:Lactobacillus fermentum
保藏日期:2018年03月29日
保藏单位:中国微生物菌种保藏管理委员会普通微生物中心
保藏单位地址:北京市朝阳区北辰西路1号院3号
生物材料保藏信息说明
保藏编号:CGMCC No.15528
分类命名:Lactobacillus reuteri
保藏日期:2018年03月29日
保藏单位:中国微生物菌种保藏管理委员会普通微生物中心
保藏单位地址:北京市朝阳区北辰西路1号院3号
生物材料保藏信息说明
保藏编号:CGMCC No.16710
分类命名:植物乳杆菌Lactobacillus plantarum
保藏日期:2018年11月05日
保藏单位:中国微生物菌种保藏管理委员会普通微生物中心
保藏单位地址:北京市朝阳区北辰西路1号院3号
Claims (4)
1.一种用于降低可食性材料的嘌呤含量的方法,其特征在于,将具有嘌呤降解能力的微生物培养于该可食性材料中,其中该微生物是植物乳杆菌TSP05、发酵乳酸杆菌TSF331以及罗伊氏乳酸杆菌TSR332的组合,植物乳酸杆菌TSP05、发酵乳酸杆菌TSF331以及罗伊氏乳酸杆菌TSR332的菌数比为1:1:1,
植物乳杆菌TSP05的保藏编号为CGMCC No.16710,发酵乳酸杆菌TSF331的保藏编号为CGMCC No.15527,罗伊氏乳酸杆菌TSR332的保藏编号为CGMCC No.15528。
2.一种植物乳杆菌TSP05、发酵乳酸杆菌TSF331以及罗伊氏乳酸杆菌TSR332的组合供应用于制备用来降低血中尿酸水平的药学组合物的用途,其中植物乳酸杆菌TSP05、发酵乳酸杆菌TSF331以及罗伊氏乳酸杆菌TSR332的菌数比为1:0.6:0.6,
植物乳杆菌TSP05的保藏编号为CGMCC No.16710,发酵乳酸杆菌TSF331的保藏编号为CGMCC No.15527,罗伊氏乳酸杆菌TSR332的保藏编号为CGMCC No.15528。
3.根据权利要求2所述的用途,其特征在于,该药学组合物进一步包含有药学上可接受的载剂。
4.根据权利要求2所述的用途,其特征在于,该药学组合物呈供口服投药或非经肠道投药的剂型。
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