Characteristics of prolidase from the erythrocytes of normal humans and patients with prolidase deficiency and their mother.

Abstract:

:Prolidases I and II were highly purified from human erythrocytes. The effects of various amino acids, MnCl2 and mercaptoethanol, on these two enzymes were investigated. Normal prolidase II was very labile in the absence of MnCl2 or mercaptoethanol. The activity of prolidase II was maintained at about 76% by pre-incubation with MnCl2; it was then activated up to 140% by treatment with mercaptoethanol for 60 minutes at 37 degrees C. Normal prolidases I and II showed the highest activity against glycylproline or methionylproline in the presence of MnCl2. The activity of prolidase I against glycylproline was enhanced strongly by glycine and MnCl2, but not activated in the absence of MnCl2. The activity of prolidase II against methionylproline was enhanced three-fold in the presence of glycine and MnCl2, but its activity against glycylproline was very low even in the presence of MnCl2. A stronger enhancement of this activity was found in normal erythrocytes, and a lower level of this activity was found in erythrocytes of patients treated with glycine, MnCl2 and mercaptoethanol compared to those treated with glycine and MnCl2. The activity of prolidase II against methionylproline in all erythrocytes, of normal humans and of patients, was strongly activated by the addition of glycine with MnCl2 but suppressed by the addition of mercaptoethanol.

journal_name

Clin Chem Lab Med

authors

Nakayama K,Awata S,Zhang J,Kaba H,Manabe M,Kodama H

doi

10.1515/CCLM.2003.202

keywords:

subject

Has Abstract

pub_date

2003-10-01 00:00:00

pages

1323-8

issue

10

eissn

1434-6621

issn

1437-4331

journal_volume

41

pub_type

杂志文章
  • Historical overview of analytical methods for the measurement of transthyretin.

    abstract::The history of prealbumin dates back to the early forties and may be divided into three parts, based on a chronological and functional approach. The first part--the discovery and the identification of prealbumin--was essentially based on classical protein chemistry methods. The second--the demonstration of prealbumin ...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章,评审

    doi:10.1515/CCLM.2002.220

    authors: De Nayer P

    更新日期:2002-12-01 00:00:00

  • Insulin sensitivity and counter-regulatory hormones in hypothyroidism and during thyroid hormone replacement therapy.

    abstract::We examined insulin sensitivity and secretion, together with the levels of selected glucoregulatory hormones, in 15 female patients with severe hypothyroidism (H) and during subsequent thyroid hormone replacement therapy (HRT) using the euglycaemic hyperinsulinaemic clamp technique. Insulin action, as evaluated by glu...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章

    doi:10.1515/CCLM.2005.121

    authors: Stanická S,Vondra K,Pelikánová T,Vlcek P,Hill M,Zamrazil V

    更新日期:2005-01-01 00:00:00

  • Influence of time and temperature on coagulation analytes in stored plasma.

    abstract::There is no comprehensive study on the stability of coagulation analytes in plasma. We therefore determined the influence of storage time and temperature on prothrombin time, activated partial thromboplastin time, thrombin time, fibrinogen, factors V and VIII, antithrombin III, protein C and S in plasma from 20 health...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章

    doi:10.1515/CCLM.1998.077

    authors: Heil W,Grunewald R,Amend M,Heins M

    更新日期:1998-06-01 00:00:00

  • Optimizing the purification and analysis of miRNAs from urinary exosomes.

    abstract:BACKGROUND:Exosomes are cytoplasm containing vesicles released by many cells that can be found in several biological fluids including urine. Urinary exosomes are released from every segment of the nephron, are detectable in urine, constitutively contain RNA (small RNAs and mRNAs) and harbor unique subset of proteins, r...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章

    doi:10.1515/cclm-2013-0562

    authors: Channavajjhala SK,Rossato M,Morandini F,Castagna A,Pizzolo F,Bazzoni F,Olivieri O

    更新日期:2014-03-01 00:00:00

  • Elevated levels of plasma homocysteine in postmenopausal women in Burkina Faso.

    abstract:BACKGROUND:Low levels of plasma homocysteine have been found in children and adult populations living in Burkina Faso in association with a low prevalence of coronary heart disease. METHODS:Based on this finding, the levels of plasma homocysteine and other thiols (cysteine, cysteinylglycine, glutathione) in postmenopa...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章

    doi:10.1515/CCLM.2005.131

    authors: Chillemi R,Simpore J,Persichilli S,Minucci A,D'Agata A,Musumeci S

    更新日期:2005-01-01 00:00:00

  • Bovine spongiform encephalopathy: are the cows mad or full of carbohydrates?

    abstract::The non-forage feeding of dairy cows rich in fast absorption carbohydrates, the low value of their euglycemic-hyperinsulinemic clamp suggest a dysregulation of carbohydrate metabolism able to produce neurodegenerative disorders. Comparisons between Alzheimer's disease developed in diabetes mellitus and bovine spongifo...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章

    doi:10.1515/CCLM.2002.018

    authors: Frey J

    更新日期:2002-02-01 00:00:00

  • C-reactive protein to transthyretin ratio for the early diagnosis and follow-up of postoperative infection.

    abstract::The clinical usefulness of C-reactive protein (CRP) and of transthyretin (TTR) for the early diagnosis and follow-up of infection after an open fracture was prospectively investigated (cohort A). It was complemented by a retrospective study of trauma patients admitted to an intensive care unit (cohort B). Serial deter...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章

    doi:10.1515/CCLM.2002.230

    authors: Férard G,Gaudias J,Bourguignat A,Ingenbleek Y

    更新日期:2002-12-01 00:00:00

  • Rapid susceptibility testing of multi-drug resistant Escherichia coli and Klebsiella by glucose metabolization monitoring.

    abstract::Background The increasing number of multi-drug resistant (MDR) bacteria provides enormous challenges for choosing an appropriate antibiotic therapy in the early phase of sepsis. While bacterial identification has been greatly accelerated by the introduction of matrix-assisted laser desorption ionization-time of flight...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章

    doi:10.1515/cclm-2018-1178

    authors: Kittel M,Findeisen P,Ghebremedhin B,Miethke T,Grundt A,Ahmad-Nejad P,Neumaier M

    更新日期:2019-07-26 00:00:00

  • Isolation of fetal cells from the maternal circulation: prospects for the non-invasive prenatal diagnosis.

    abstract::The research into non-invasive and invasive prenatal diagnostic techniques developed almost in parallel. On the one hand the need was arising to ensure the birth of normal progeny in all cases, while on the other, it was not possible to eliminate the abortion risks connected with the invasiveness of amniocentesis (ris...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章,评审

    doi:10.1515/CCLM.2001.082

    authors: Torricelli F,Pescucci C

    更新日期:2001-06-01 00:00:00

  • Parkinson's disease--the continuing search for biomarkers.

    abstract::There is currently no well-established biomarker for Parkinson's disease. The need to better diagnose the condition, define the subtypes of disease, and follow its course independent of any symptomatic drug effects is well-established. In this review, we will begin by reviewing the evidence for biological fluid biomar...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章,评审

    doi:10.1515/CCLM.2011.080

    authors: Breen DP,Michell AW,Barker RA

    更新日期:2011-03-01 00:00:00

  • HAND1 loss-of-function mutation associated with familial dilated cardiomyopathy.

    abstract:BACKGROUND:The basic helix-loop-helix transcription factor HAND1 is essential for cardiac development and structural remodeling, and mutations in HAND1 have been causally linked to various congenital heart diseases. However, whether genetically compromised HAND1 predisposes to dilated cardiomyopathy (DCM) in humans rem...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章

    doi:10.1515/cclm-2015-0766

    authors: Zhou YM,Dai XY,Qiu XB,Yuan F,Li RG,Xu YJ,Qu XK,Huang RT,Xue S,Yang YQ

    更新日期:2016-07-01 00:00:00

  • DNA methylation biomarkers in biological fluids for early detection of respiratory tract cancer.

    abstract::Cancers of the respiratory tract (lung and head and neck) share common aetiologies, risk factors and molecular characteristics. Epigenetic reprogramming is one of the hallmarks of cancer and DNA methylation is currently the best-studied form. There are a number of characteristics of DNA methylation, which seem advanta...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章,评审

    doi:10.1515/cclm-2012-0124

    authors: Markopoulou S,Nikolaidis G,Liloglou T

    更新日期:2012-10-01 00:00:00

  • Cardiotoxic effects and myocardial injury: the search for a more precise definition of drug cardiotoxicity.

    abstract::Drug-induced cardiotoxicity is a major clinical problem; cardiotoxic drugs may induce both cardiac dysfunction and myocardial injury. Several recent studies reported that cardiac troponins measured with high-sensitivity methods (hs-cTn) can enable the early detection of myocardial injury related to chemotherapy or abu...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章

    doi:10.1515/cclm-2020-0566

    authors: Cardinale DM,Zaninotto M,Cipolla CM,Passino C,Plebani M,Clerico A

    更新日期:2020-08-26 00:00:00

  • Biovariability of plasma adiponectin.

    abstract:BACKGROUND:Adiponectin is a cytokine produced by adipose tissue with insulin sensitising and anti-atherosclerotic effects. Low plasma adiponectin levels are used as a marker of the metabolic syndrome and incipient type 2 diabetes. METHODS:We carried out a series of studies to determine the short- and long-term variabi...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章

    doi:10.1515/CCLM.2006.227

    authors: Shand B,Elder P,Scott R,Frampton C,Willis J

    更新日期:2006-01-01 00:00:00

  • Standardization and clinical management of lipoprotein(a) measurements.

    abstract::The present article proposes personal suggestions to improve determinations and clinical interpretation of results of lipoprotein(a) assays. Methods and procedures for sampling and quantification of the various isoforms of lipoprotein(a) in serum, plasma and urine are reviewed with the aim of improving the reliability...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章,评审

    doi:10.1515/CCLM.1998.003

    authors: Lippi G,Guidi G

    更新日期:1998-01-01 00:00:00

  • Influence of ABO type on global coagulation assay results: effect of coagulation factor VIII.

    abstract:BACKGROUND:As ABO blood type influences the plasma level of coagulation factor VIII (FVIII), it likely also affects activated partial thromboplastin time (aPTT) and thrombin generation assay (TGA) values. Here, we aimed to investigate the effect of ABO type on the normal values of three global coagulation assays: proth...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章

    doi:10.1515/cclm-2014-0909

    authors: Choi Q,Kim JE,Kim SY,Han KS,Kim HK

    更新日期:2015-08-01 00:00:00

  • Neopterin--an early marker of surgical stress and hypoxic reperfusion damage during liver surgery.

    abstract::Neopterin is elevated in infections, autoimmune diseases and post-transplant. Recently neopterin elevation was linked to stress response and malignancy. To determine early changes of serum neopterin caused by surgical stress and to investigate their association with other inflammatory markers and with malignancy, we m...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章

    doi:10.1515/CCLM.2002.113

    authors: Jerin A,Pozar-Lukanovic N,Sojar V,Stanisavljevic D,Paver-Erzen V,Osredkar J

    更新日期:2002-07-01 00:00:00

  • Long-term biological variability of galectin-3 after heart transplantation.

    abstract:BACKGROUND:Galectin-3 is an emerging biomarker of heart failure and of myocardial fibrosis risk. Monitoring of galectin-3 is essential during treatment with galectin-3 inhibitors. The aim of our study was to assess long-term biological variability in a specific group of unhealthy subjects. METHODS:The biological varia...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 临床试验,杂志文章

    doi:10.1515/cclm-2013-1088

    authors: Franeková J,Kubíček Z,Hošková L,Kotrbatá M,Sečník P,Kautzner J,Jabor A

    更新日期:2015-01-01 00:00:00

  • Polymorphisms of coagulation factor genes--a review.

    abstract::Common genetic variants of coagulation factor genes associated with differences in concentration and/or function of coagulation factors have been studied in search of variability that could explain the individual susceptibility to thrombosis and atherothrombotic diseases. The more outstanding polymorphisms in genes of...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章,评审

    doi:10.1515/CCLM.1998.156

    authors: Ferrer-Antunes C

    更新日期:1998-12-01 00:00:00

  • The PCSK9 gene E670G polymorphism affects low-density lipoprotein cholesterol levels but is not a risk factor for coronary artery disease in ethnic Chinese in Taiwan.

    abstract:BACKGROUND:An E670G polymorphism of the exon 12 of the proprotein convertase subtilisin/kexin type 9 (PCSK9) gene was recently found to be associated with increased plasma low-density lipoprotein cholesterol (LDL-C) levels and severity of coronary atherosclerosis. This case-control study tested for a possible link betw...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章

    doi:10.1515/CCLM.2009.032

    authors: Hsu LA,Teng MS,Ko YL,Chang CJ,Wu S,Wang CL,Hu CF

    更新日期:2009-01-01 00:00:00

  • Prevention of biochemical changes in gamma-irradiated rats by some metal complexes.

    abstract::The formation of superoxide partially accounts for the well-known oxygen enhancement of radiation-induced biochemical changes and cell damage. Radioprotective effects of copper (II), manganese (IV) or vanadium (IV) complexes, of superoxide dismutase-mimetic activity, on body weight, survival rate and some biochemical ...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章

    doi:10.1515/CCLM.2003.141

    authors: Abou-Seif MA,El-Naggar MM,El-Far M,Ramadan M,Salah N

    更新日期:2003-07-01 00:00:00

  • Impact of standardized calibration on the inter-assay variation of 14 automated assays for the measurement of creatinine in human serum.

    abstract:PURPOSE:The aim of our study was to measure the inter-assay variation and accuracy of serum creatinine assays and to assess the effect of standardized calibration procedures on this variability. METHODS:We analyzed 30 human sera and three reference materials, using 17 creatinine assays (12 colorimetric, 4 enzymatic an...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章

    doi:10.1515/CCLM.2005.213

    authors: Séronie-Vivien S,Galteau MM,Carlier MC,Hadj-Aissa A,Hanser AM,Hym B,Marchal A,Michotey O,Pouteil-Noble C,Sternberg M,Perret-Liaudet A,Creatinine Working Group of the Société Française de Biologie Clinique.

    更新日期:2005-01-01 00:00:00

  • Mining of hospital laboratory information systems: a model study defining age- and gender-specific reference intervals and trajectories for plasma creatinine in a pediatric population.

    abstract:BACKGROUND:The knowledge of physiological fluctuation and variation of even commonly used biochemical quantities in extreme age groups and during development is sparse. This challenges the clinical interpretation and utility of laboratory tests in these age groups. To explore the utility of hospital laboratory data as ...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章

    doi:10.1515/cclm-2014-0949

    authors: Søeby K,Jensen PB,Werge T,Sørensen S

    更新日期:2015-09-01 00:00:00

  • Phospholipases A2 in gastric juice of Helicobacter pylori--positive and negative individuals.

    abstract::Gastric juice is known to have phospholipase A2 catalytic activity. Helicobacter pylori (H. pylori) has been reported to produce phospholipase A2, which is believed to hydrolyse the protective layer of gastric mucosal phospholipids and to promote mucosal damage. The current study aimed at identifying secretory phospho...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 临床试验,杂志文章

    doi:10.1515/CCLM.1999.009

    authors: Huhtinen HT,Grönroos JM,Haapamäki MM,Nevalainen TJ

    更新日期:1999-01-01 00:00:00

  • A systematic evaluation of stool DNA preparation protocols for colorectal cancer screening via analysis of DNA methylation biomarkers.

    abstract:Objectives:Colorectal cancer (CRC) screening using stool samples is now in routine use where tumor DNA methylation analysis for leading markers such as NDRG4 and SDC2 is an integral part of the test. However, processing stool samples for reproducible and efficient extraction of human genomic DNA remains a bottleneck fo...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章

    doi:10.1515/cclm-2020-0300

    authors: Jin S,Ye Q,Hong Y,Dai W,Zhang C,Liu W,Guo Y,Zhu D,Zhang Z,Chen S,Wang Y,Li D,Ma W,Yang Z,Li J,Zheng Z,Luan J,Wu X,Jiang F,Xu C,Ding C

    更新日期:2020-07-16 00:00:00

  • Changes in platelet count and indices in pulmonary tuberculosis.

    abstract:BACKGROUND:Recent studies show that platelets have important roles in the immune system. Little is known about the clinical significance of platelet indices. Changes in platelet indices, including platelet distribution width (PDW), mean platelet volume (MPV) and plateletcrit, in pulmonary tuberculosis were investigated...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章

    doi:10.1515/CCLM.2007.194

    authors: Tozkoparan E,Deniz O,Ucar E,Bilgic H,Ekiz K

    更新日期:2007-01-01 00:00:00

  • Real-time RT-PCR for the measurement of prostate-specific antigen mRNA expression in benign hyperplasia and adenocarcinoma of prostate.

    abstract::Since PSA is supposed to play an active role in the progression of prostate cancer, we applied a quantitative RT-PCR to measure the absolute levels of prostate-specific antigen (PSA) mRNA expression in benign and malignant prostatic tissue. Consecutive fine needle prostate biopsy material from 59 patients (43 with pro...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章

    doi:10.1515/CCLM.2003.040

    authors: Gelmini S,Tricarico C,Petrone L,Forti G,Amorosi A,Dedola GL,Serio M,Pazzagli M,Orlando C

    更新日期:2003-03-01 00:00:00

  • Homocysteine-lowering trials for prevention of vascular disease: protocol for a collaborative meta-analysis.

    abstract:BACKGROUND:Elevated plasma total homocysteine is a risk factor for cardiovascular disease (CVD), but the randomized trials of dietary supplementation with B-vitamins to lower homocysteine have not yet provided clear evidence of benefit on vascular risk. METHODS:Cumulative meta-analysis of all randomized trials assessi...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章,meta分析,评审

    doi:10.1515/CCLM.2007.346

    authors: Clarke R,Armitage J,Lewington S,Collins R,B-Vitamin Treatment Trialists' Collaboration.

    更新日期:2007-01-01 00:00:00

  • Fucosylation of serum glycoproteins in lung cancer patients.

    abstract::Increased expression of sialyl Lewis X or A antigens on metastatic cancer cells leads to their selectin-mediated extravasation. Profound fucosylation of the serum microenvironment may be a factor that interrupts adhesion and influences the formation of metastases. In this study we quantitatively analyzed fucosylation ...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章

    doi:10.1515/CCLM.2005.066

    authors: Kossowska B,Ferens-Sieczkowska M,Gancarz R,Passowicz-Muszyńska E,Jankowska R

    更新日期:2005-01-01 00:00:00

  • The correlation between glucose fluctuation from self-monitored blood glucose and the major adverse cardiac events in diabetic patients with acute coronary syndrome during a 6-month follow-up by WeChat application.

    abstract::Background This study aimed to investigate the correlation between glucose fluctuation from self-monitored blood glucose (SMBG) and the major adverse cardiac events (MACE) in diabetic patients with acute coronary syndrome (ACS) during a 6-month follow-up period using the WeChat application. Methods From November 2016 ...

    journal_title:Clinical chemistry and laboratory medicine

    pub_type: 杂志文章

    doi:10.1515/cclm-2018-0220

    authors: Xia J,Hu S,Xu J,Hao H,Yin C,Xu D

    更新日期:2018-11-27 00:00:00