Globulins

球蛋白类
  • 文章类型: Journal Article
    大豆球蛋白碱性肽(GBP)是大豆大豆球蛋白的基本多肽,使用廉价且易得的原料(豆粕)分离。GBP可以承受高温加工,具有良好的功能性能,如乳化和粘附性能等。GBP对革兰氏阳性和革兰氏阴性细菌以及真菌表现出广谱抗微生物活性。除此之外,GBP显示出巨大的应用潜力,以提高食品的质量和延长保质期。这篇综述将系统地提供有关纯化的信息,GBP的物理化学和功能性质。此外,对GBP的抗菌活性、多靶点抗菌机理以及GBP在不同食品中的应用进行了综述和讨论。这篇综述旨在为GBP作为一种有前途的天然食品添加剂和防腐剂在食品工业中的应用提供有价值的见解。
    Glycinin basic peptide (GBP) is the basic polypeptide of soybean glycinin that is isolated using cheap and readily available raw materials (soybean meals). GBP can bear high-temperature processing and has good functional properties, such as emulsification and adhesion properties et al. GBP exhibits broad-spectrum antimicrobial activities against Gram-positive and Gram-negative bacteria as well as fungi. Beyond that, GBP shows enormous application potential to improve the quality and extend the shelf life of food products. This review will systematically provide information on the purification, physicochemical and functional properties of GBP. Moreover, the antimicrobial activities and multi-target antimicrobial mechanism of GBP as well as the applications of GBP in different food products are also reviewed and discussed in detail. This review aims to offer valuable insights for the applications of GBP in the food industry as a promising natural food additive and preservative.
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  • 文章类型: Journal Article
    我们的荟萃分析的目的是分析文献中有关前列腺癌(PC)患者白蛋白与球蛋白比率(AGR)的可能预后价值的数据。我们在PC分期方面区分了我们的分析,组织学侵袭性,和治疗后进展的风险。进行了文献检索过程(“前列腺癌”,“白蛋白”,\"球蛋白\",“白蛋白与球蛋白之比”)遵循PRISMA指南。在我们的荟萃分析中,使用随机效应模型计算每个目标组的合并事件发生率(ER)估计值.基于在ROC分析中定义的最佳截止值,在低AGR和高AGR组中区分病例。附上了四项临床试验(样本量为214至6041例)。高AGR和低AGR病例之间非器官受限PC的合并风险差异为-0.05(95CI:-0.12-0.01),异质性率非常低(I2&lt;0.15%;p=0.43)研究(组间差异检验p=0.21)。在非转移性PC病例中,高AGR和低AGR病例的合并生化进展风险(BCP)差异为-0.05(95CI:-0.12-0.01)(I2=0.01%;p=0.69)(组间差异检验p=0.12).在转移性PC病例中,AGR在无进展生存期(PFS)(赔率比(OR):0.642(0.430-0.957))或癌症特异性生存期(CSS)(OR:0.412(0.259-0.654))方面显示出独立的显着(p<0.01)预测值。我们的荟萃分析显示,同质结果支持AGR在分期方面没有显著的预测值,非转移性PC的分级和生化进展。
    The aim of our meta-analysis is to analyze data available in the literature regarding a possible prognostic value of the albumin to globulin ratio (AGR) in prostate cancer (PC) patients. We distinguished our analysis in terms of PC staging, histologic aggressiveness, and risk of progression after treatments. A literature search process was performed (“prostatic cancer”, “albumin”, “globulin”, “albumin to globulin ratio”) following the PRISMA guidelines. In our meta-analysis, the pooled Event Rate (ER) estimate for each group of interest was calculated using a random effect model. Cases were distinguished in Low and High AGR groups based on an optimal cut-off value defined at ROC analysis. Four clinical trials were enclosed (sample size range from 214 to 6041 cases). The pooled Risk Difference for a non-organ confined PC between High AGR and Low AGR cases was −0.05 (95%CI: −0.12−0.01) with a very low rate of heterogeneity (I2 < 0.15%; p = 0.43) among studies (test of group differences p = 0.21). In non-metastatic PC cases, the pooled Risk Difference for biochemical progression (BCP) between High AGR and Low AGR cases was −0.05 (95%CI: −0.12−0.01) (I2 = 0.01%; p = 0.69) (test of group differences p = 0.12). In metastatic PC cases, AGR showed an independent significant (p < 0.01) predictive value either in terms of progression free survival (PFS) (Odds Ratio (OR): 0.642 (0.430−0.957)) or cancer specific survival (CSS) (OR: 0.412 (0.259−0.654)). Our meta-analysis showed homogeneous results supporting no significant predictive values for AGR in terms of staging, grading and biochemical progression in non-metastatic PC.
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  • 文章类型: Journal Article
    根据美国和欧洲协会关于犬心丝虫病(HWD)的主要指南(即,AHS,ESDA,andESCCAP),正确的诊断应包括检测全血中的循环微丝虫和血清或血浆样品中的成人抗原。到目前为止,关于受HWD影响的狗的实验室异常的数据很少,尽管包括血清蛋白电泳(SPEP)在内的技术已被证明对其他媒介传播疾病的诊断和监测有用,如犬利什曼病。因此,这项研究旨在评估自然感染D.immitis的狗的SPEP模式。此外,对有关该主题的文献进行了系统的回顾。心脏丝虫阳性狗的医疗记录,任何性别,年龄,和品种以及可用的临床检查和实验室测试结果(即,全血细胞计数,血清生化概况,和SPEP)进行回顾性收集。如果可用,还评估了HWD治疗后犬的实验室结果.当与参考间隔比较时,在30只被D.immitis感染并注册的狗中,63.3%(n=19)的白蛋白百分比较低,80.0%(n=24)的β球蛋白百分比较高,β-2,尤其是β-3球蛋白是最频繁改变的部分。就绝对值(g/dL)而言,低白蛋白血症犬的比例,并增加了总球蛋白,阿尔法,β-和γ球蛋白为4/30(13.3%),6/30(20.0%),2/30(6.7%),16/30(53.3%)和8/30(26.7%),分别。7只狗在使用多西环素(10mg/kgBID,持续4周)治疗3个月和6个月后评估了SPEP结果。在这些狗中,治疗后白蛋白的百分比显着增加,α-2球蛋白,和白蛋白/球蛋白的比例观察,以及总百分比和绝对值的显着下降-,beta-,和β-3球蛋白。对文献数据库的系统审查得出了总共三项研究,这些研究被认为是合格的,并包括在定性综合中。这项研究提供了有关自然感染D.immitis的狗的SPEP改变的新信息。血清蛋白及其电泳图谱的评估可能代表了及时准确诊断的重要诊断工具(例如,区分具有相似临床症状和在同一地理区域流行的狗的感染)并监测HWD。
    According to the main Guidelines on canine heartworm disease (HWD) by the American and European Societies (i.e., AHS, ESDA, and ESCCAP), a correct diagnosis of Dirofilaria immitis infection should include the detection of circulating microfilariae in the whole blood and the adult antigens in serum or plasma sample. So far, scant data are available on laboratory abnormalities in dogs affected by HWD, although techniques including serum protein electrophoresis (SPEP) have proved to be useful for the diagnosis and monitoring of other vector-borne diseases, such as the canine leishmaniosis. Therefore, this study aims to evaluate the SPEP pattern in dogs naturally infected by D. immitis. Furthermore, a systematic review of the literature on this topic was carried out. Medical records from heartworm-positive dogs, of any sex, age, and breed and with available clinical examination and laboratory test results (i.e., complete blood count, serum biochemical profile, and SPEP) were retrospectively collected. If available, laboratory results obtained from dogs after treatment for HWD were also evaluated. When compared with the reference intervals, out of 30 dogs infected by D. immitis and enrolled, 63.3% (n = 19) had a lower percentage of albumin, and 80.0% (n = 24) had higher percentages of beta globulins, with beta-2, and especially beta-3 globulins the most frequently altered fractions. In terms of absolute values (g/dL), the proportion of dogs with hypoalbuminemia, and increased total globulin, alpha, beta- and gamma globulins were 4/30 (13.3%), 6/30 (20.0%), 2/30 (6.7%), 16/30 (53.3%) and 8/30 (26.7%), respectively. For 7 dogs, SPEP results evaluated three and six months after treatment with doxycycline (10 mg/kg BID for 4 weeks) were available. In these dogs a significant post-treatment increase in the percentage of albumin, alpha-2 globulin, and albumin/globulins ratio was observed, as well as a significant decrease both in the percentage and in the absolute value of total-, beta-, and beta-3 globulins. The systematic review of literature databases yielded a total of three studies that were considered eligible and included in the qualitative synthesis. This study provides novel information on SPEP alterations in dogs naturally infected by D. immitis. The evaluation of serum proteins and their electrophoretic pattern may represent an important diagnostic tool for a prompt and accurate diagnosis (e.g., differentiating infections in dogs sharing similar clinical signs and endemic in the same geographical area) and monitoring of HWD.
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  • 文章类型: Journal Article
    巨细胞病毒(CMV)是先天性神经系统残疾的主要传染性原因。伐昔洛韦和CMV超免疫球蛋白(HIG)可以减少新生儿的垂直传播和后遗症。截至2021年9月3日,对伐昔洛韦和CMVHIG预防新生儿垂直传播或减少后遗症的系统评价。伐昔洛韦作为预防策略得到了一项进行良好的随机对照试验的支持。支持伐昔洛韦作为治疗策略的证据仅限于中等偏倚风险的观察性研究。在2项随机对照试验中,CMVHIG未被支持作为预防策略,这与观察性研究形成了对比。支持CMVHIG作为治疗策略的证据仅限于中等偏倚风险的观察性研究。伐昔洛韦和CMVHIG在妊娠CMV感染中的作用仍在确定中。伐昔洛韦预防垂直传播具有最高质量的证据,有利于使用。
    Cytomegalovirus (CMV) is the leading infectious cause of congenital neurological disabilities. Valacyclovir and CMV hyperimmune globulin (HIG) may reduce vertical transmission and sequelae in neonates. A systematic review on valacyclovir and CMV HIG in preventing vertical transmission or reducing sequelae in neonates was conducted to 3 September 2021. Valacyclovir as a preventive strategy was supported by a well-conducted randomized controlled trial. Evidence supporting valacyclovir as a treatment strategy was limited to observational studies at moderate risk of bias. CMV HIG was not supported as a preventive strategy in 2 randomized controlled trials, which contrasted with observational studies. Evidence favoring CMV HIG as a treatment strategy was limited to observational studies at moderate risk of bias. The role of valacyclovir and CMV HIG in CMV infection in pregnancy is still being defined. Valacyclovir to prevent vertical transmission has the highest quality evidence in favor of use.
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  • 文章类型: Journal Article
    血管紧张素I转换酶(ACE)是一种在血压调节中起重要作用的肽酶。在这项工作中,提出了关于血管紧张素I转换酶抑制(ACEi)肽的酶法制备的系统综述。系统审查是按照PRISMA指南进行的。已知大豆和天鹅绒豆具有高蛋白质含量,这使得它们适合作为用于生产ACEi肽的亲本蛋白质的来源。内肽酶通常用于制备大豆基ACEi肽,而对于天鹅绒豆,内肽酶和外肽酶的组合经常使用。大豆大豆球蛋白是制备ACEi肽的优选底物。它含有脯氨酸作为其主要氨基酸之一,在抑制ACE方面表现出有效的意义。从大豆生产ACEi肽的最佳酶处理如下:蛋白酶P的蛋白水解活性(来自曲霉属的Amano-P。),温度为37°C,反应时间为18小时,pH为8.2,E/S比为2%。另一方面,生产具有高ACEi活性的肽水解产物的最佳酶促条件是通过胃蛋白酶-胰腺组合的顺序水解活性,每种酶的E/S比为10%,每次蛋白水解的温度和反应时间为37°C和0.74h,分别,胃蛋白酶的pH为2.0,而胰酶制剂的pH为7.0。作为一个未充分利用的脉冲,有关天鹅绒豆蛋白酶水解生产ACEi肽的研究有限。最后,发现大豆基ACEi肽的活性取决于它们的分子大小,氨基酸残基,和位置。具有非极性侧链的疏水性氨基酸,带正电荷,分支,和环状或芳族残基通常优选用于ACEi肽。
    The Angiotensin-I-converting enzyme (ACE) is a peptidase with a significant role in the regulation of blood pressure. Within this work, a systematic review on the enzymatic preparation of Angiotensin-I-Converting Enzyme inhibitory (ACEi) peptides is presented. The systematic review is conducted by following PRISMA guidelines. Soybeans and velvet beans are known to have high protein contents that make them suitable as sources of parent proteins for the production of ACEi peptides. Endopeptidase is commonly used in the preparation of soybean-based ACEi peptides, whereas for velvet bean, a combination of both endo- and exopeptidase is frequently used. Soybean glycinin is the preferred substrate for the preparation of ACEi peptides. It contains proline as one of its major amino acids, which exhibits a potent significance in inhibiting ACE. The best enzymatic treatments for producing ACEi peptides from soybean are as follows: proteolytic activity by Protease P (Amano-P from Aspergillus sp.), a temperature of 37 °C, a reaction time of 18 h, pH 8.2, and an E/S ratio of 2%. On the other hand, the best enzymatic conditions for producing peptide hydrolysates with high ACEi activity are through sequential hydrolytic activity by the combination of pepsin-pancreatic, an E/S ratio for each enzyme is 10%, the temperature and reaction time for each proteolysis are 37 °C and 0.74 h, respectively, pH for pepsin is 2.0, whereas for pancreatin it is 7.0. As an underutilized pulse, the studies on the enzymatic hydrolysis of velvet bean proteins in producing ACEi peptides are limited. Conclusively, the activity of soybean-based ACEi peptides is found to depend on their molecular sizes, the amino acid residues, and positions. Hydrophobic amino acids with nonpolar side chains, positively charged, branched, and cyclic or aromatic residues are generally preferred for ACEi peptides.
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  • 文章类型: Case Reports
    Immune checkpoint inhibitor (ICI) monoclonal antibody drugs are an important interface of immunology and cancer biology with the intended goal to create cancer specific treatments with less systemic toxicity. Recognition of immune-related adverse events is critical and these include significant cardiovascular toxicity and myocarditis. Compared with other immune-related events, ICI associated myocarditis is rare but is associated with high mortality. The majority of cases present early in the course of therapy and patients can rapidly progress to fulminant myocarditis. Initially, the mainstay of treatment in patients with ICI-associated myocarditis is immunosuppressive therapy with glucocorticoids. For those who do not respond to steroids, the optimal treatment is unclear. This review summarizes the potential adjunctive treatment options for patients with steroid-refractory myocarditis by illustrating a case of myocarditis that was treated with Thymoglobulin and immunoglobulin.
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  • 文章类型: Journal Article
    作为一种重要的作物,大豆在世界范围内被广泛使用,在人类和动物营养中起着至关重要的作用。然而,它含有几种抗营养因子(ANF),包括大豆凝集素,大豆蛋白酶抑制剂,大豆致敏蛋白,等。,这可能会导致食物利用率低下,增长业绩下降,甚至疾病。在这些ANF中,大豆过敏原蛋白可导致人和动物的过敏反应,这已经成为全世界的公共问题,但是我们对它的了解仍然不足。本文旨在提供有关特征的最新信息,探测或勘探方法,以及大豆致敏蛋白的体内研究模型;特别是大豆球蛋白和β-伴大豆球蛋白。通过这次审查,我们可能对这两种大豆致敏蛋白的研究进展有了更好的了解。此外,对降低大豆致敏性的成分加工进行了综述。
    Being an important crop, soybean is widely used in the world and plays a vital role in human and animal nutrition. However, it contains several antinutritional factors (ANFs) including soybean agglutinin, soybean protease inhibitors, soybean allergenic proteins, etc., that may result in poor food utilization, decreased growth performance, and even disease. Among these ANFs, soybean allergenic proteins can lead to allergic reactions in human and animals, which has become a public problem all over the world, but our knowledge on it is still inadequate. This paper aims to provide an update on the characteristics, detection or exploration methods, and in vivo research models of soybean allergenic proteins; especially glycinin and β-conglycinin are deeply discussed. Through this review, we may have a better understanding on the advances of research on these two soybean allergenic proteins. Besides, the ingredient processing used to reduce the allergenicity of soybean is also reviewed.
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  • 文章类型: Journal Article
    Rice bran protein has been found to be of high quality and of importance for food and pharmaceutical applications. It is a plant protein that can be derived from rice bran, an abundant and cheap agricultural byproduct. The protein content in rice bran is about 10-15% and it consists of 37% water-soluble, 31% salt-soluble, 2% alcohol-soluble, and 27% alkali-soluble storage proteins. Its unique property as being hypoallergenic and having anti-cancer activity makes it a superior cereal protein that may find a wide range of applications. There were already reports on the extraction of rice bran protein several decades ago. However, as of now, commercial rice bran protein is still unavailable in the market. This review is aimed at providing valuable discussions on rice bran protein, that is, storage protein, its various properties, and extraction methods for the development of an effective processing scheme. Also, an update on the current processing methods is also included.
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