Abstract:
:During the past few years, interest in xenotransplantation of porcine islets of Langerhans for the future therapy of type I diabetes has increased markedly. Therefore, we established a semiautomated digestion method for isolating islets from the porcine pancreas. However, although the isolation technique was standardized and collagenase of controlled quality was used, we were unable to attain high islet yields with a satisfactory degree of reproducibility. One hypothesis was that varying degrees of interference by donor pancreatic enzymes were responsible for this failure. The aim of this study was to examine the kinetics of four types of enzymatic activity during the isolation procedure, as well as their effects on islet yield: collagenase, trypsin, neutral protease, and clostripain. Our results indicate that while exogenous collagenase activity decreases slightly during the isolation procedure, the activity of the pancreas enzymes neutral protease and trypsin increases. In some cases, trypsin activity increases very strongly. A strong increase in trypsin activity correlates with poor islet yield, whereas low trypsin activity always correlates with high islet yield. Addition of the protease inhibitor Pefabloc to the isolation medium results in low trypsin activity and reproducible high islet yields.
journal_name
J Clin Lab Analjournal_title
Journal of clinical laboratory analysisauthors
Heiser A,Ulrichs K,Müller-Ruchholtz Wdoi
10.1002/jcla.1860080611subject
Has Abstractpub_date
1994-01-01 00:00:00pages
407-11issue
6eissn
0887-8013issn
1098-2825journal_volume
8pub_type
杂志文章abstract::T-lymphocyte function was investigated in a group of eight patients with polycythemia vera (PV) and 13 normals. Responsiveness of T-cells to stimulation by mitogen was significantly impaired in the PV patients (p = .02). Analysis of immune cell subpopulation composition by assessment of cell surface phenotype did not ...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860030204
更新日期:1989-01-01 00:00:00
abstract:BACKGROUND:Coronary heart disease (CHD) is primarily caused by atherosclerosis of coronary arteries. It is largely an inflammatory disease of the vascular wall. The inflammation is related to DNA methylation. Angiopoietin-like protein 2 (ANGPTL2) has various functions in several chronic inflammatory diseases. Macrophag...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.22702
更新日期:2019-03-01 00:00:00
abstract:BACKGROUND:Screening tests are available to determine immunity to vaccine-preventable diseases, such as mumps and rubella. We aimed to define better assay for detecting immune status of health care personnel to vaccine-preventable diseases. METHODS:Mumps and rubella antibodies of health care personnel at Shimane Unive...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21621
更新日期:2013-09-01 00:00:00
abstract::Alcohol dehydrogenase (ADH) and aldehyde dehydrogenase (ALDH), which are most abundant in the liver, are the main enzymes involved in ethanol metabolism in humans. Gender-related differences in total liver ADH and ALDH activity among different animal species have been observed in many studies. We measured total ADH an...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.10076
更新日期:2003-01-01 00:00:00
abstract:BACKGROUND:Cognitive impairment, significantly reducing processing speed and executive function, is the critical consequence of cerebral small vessel disease (SVD), in which genetic variations have been studied. In this study, we explore the role of SNP43 (G/A) and SNP63 (C/T) polymorphism in the CAPN10 on cognitive im...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.22615
更新日期:2018-11-01 00:00:00
abstract:INTRODUCTION:The Mindray CAL 8000 is a cellular analysis line that consists of the BC-6800, an automated hematology analyzer, and the SC-120, an automated slidemaker/stainer. We evaluated the performances of the BC-6800 and the SC-120. METHODS:Four hundred and eight normal and abnormal samples were analyzed. The perfo...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.22065
更新日期:2017-07-01 00:00:00
abstract::The relationship between the levels of serum cystatin C and the prognostic stages of IgA nephropathy was determined in a multicenter trial in Japan. The levels of serum cystatin C in patients with IgA nephropathy were measured using the Dade Behring N Latex Cystain C assay. In 1995, the Joint Committee of the Special ...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/1098-2825(2001)15:1<25::aid-jcla5>3.0.co;2
更新日期:2001-01-01 00:00:00
abstract::A more sensitive and simpler immune complex transfer enzyme immunoassay for antithyroglobulin IgG in serum and its use for the measurement of antithyroglobulin IgG in healthy subjects and patients with thyroid diseases are described. Antithyroglobulin IgG in test serum was reacted simultaneously with dinitrophenylthyr...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860030306
更新日期:1989-01-01 00:00:00
abstract:BACKGROUND:Neurofilaments are the major cytoskeletal components of neurons, and cell injury leads to their release into the surrounding area. The aim of this study was to compare the cerebrospinal fluid (CSF) and serum (S) concentrations of neurofilament light chains (NFLs) and phosphorylated neurofilament heavy chains...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.22948
更新日期:2019-09-01 00:00:00
abstract:BACKGROUND:Wolfram's syndrome (WFS) is a hereditary (autosomal recessive) neurodegenerative disorder. The clinical features are related to diabetes insipidus, diabetes mellitus, optic atrophy, and deafness (DIDMOAD) with other variable clinical manifestations. Pathogenic variants in the WFS1 gene, encoding wolframin, a...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.23358
更新日期:2020-08-01 00:00:00
abstract::United States Food and Drug Administration (FDA) in 2010 approved the use of immunosuppressant drug everolimus, which requires therapeutic drug monitoring in whole blood. Taking advantage of structural similarity between sirolimus and everolimus we attempted to rapidly estimate everolimus concentration from apparent s...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.20459
更新日期:2011-01-01 00:00:00
abstract:BACKGROUND:The performance of 18 routine chemical detection methods was evaluated by the sigma (σ) metric, and Westgard Sigma rules with run size were used to establish internal quality control (IQC) standards to reduce patient risks. MATERIALS AND METHODS:External quality assessment (EQA) and internal quality control...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.23665
更新日期:2020-12-03 00:00:00
abstract:BACKGROUND:Primary adrenal lymphoma (PAL) is an infrequent malignant disease and there is no consensus classification or specialized treatment for it. However, PAL has been observed to have worse prognosis compared with other extrarenal malignant lymphomas and diffuse large B-cell lymphoma presents as the most common s...
journal_title:Journal of clinical laboratory analysis
pub_type:
doi:10.1002/jcla.23173
更新日期:2020-05-01 00:00:00
abstract::α-Feto protein (AFP) is the widely used tumor marker in the diagnosis of hepatocellular carcinoma (HCC). The aim of this study was to assess the diagnostic and prognostic validity of a novel marker, serum Glypican-3 (GPC3) and to compare AFP in patients with HCC. One hundred and twenty-eight patients (75 patients with...
journal_title:Journal of clinical laboratory analysis
pub_type: 临床试验,杂志文章
doi:10.1002/jcla.20484
更新日期:2011-01-01 00:00:00
abstract:BACKGROUND:Technical innovation of autoimmune blistering dermatoses (ABDs) diagnosis aimed at multiplex approach. Two multiparametric ELISA tests are commercially available for ABDs serology. The aim was to compare diagnostic accuracy of multiparametric and monospecific ELISAs and to examine the diagnostic value/agreem...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.22336
更新日期:2018-05-01 00:00:00
abstract:BACKGROUND:Circular RNAs (circRNAs) are a special class of endogenous noncoding RNAs that have numerous biological functions in normal situation and diseases including cancers. However, the clinical significance of circRNAs in gastric cancer (GC) remains largely unknown. Here, we chose two representative circRNAs, hsa_...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.22984
更新日期:2019-11-01 00:00:00
abstract:BACKGROUND:Although it is widely acknowledged that physical activity confers several health benefits, it remains uncertain whether strenuous and physically demanding exercise might determine biological effects that might turn to be ultimately unfavorable for health. Copeptin and midregion proadrenomedullin (MR-proADM) ...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21720
更新日期:2015-01-01 00:00:00
abstract::Positive predictive values for the diagnosis of systemic lupus erythematosus (SLE) were determined for two antinative DNA assays: a Farr-type radioimmunoassay (RIA) and a solid-phase enzyme immunoassay (EIA). The study population consisted of all patients whose EIA anti-DNA results were positive (greater than 250 IU) ...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860030503
更新日期:1989-01-01 00:00:00
abstract::Medical treatment for Helicobacter pylori (Hp) infection is now recommended in several types of gastroduodenal disease, and its success is usually monitored by hystology. The end-points of our work were to identify the most suitable serum index of Hp eradication among pepsinogen A (PGA), pepsinogen C (PGC), PGA/PGC ra...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/(SICI)1098-2825(1996)10:1<1::AID-JCLA1>3.0
更新日期:1996-01-01 00:00:00
abstract::The purpose of this study was to evaluate whether IL-1 beta (IL-1beta promoter and IL-1beta exon 5), IL-1 receptor antagonist (IL-1 Ra), and IL-4 (IL-4 promoter and IL-4 intron 3) gene polymorphisms act as markers of susceptibility to Kawasaki disease (KD), or of the severity of the disease. The study included 107 KD ...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.20059
更新日期:2005-01-01 00:00:00
abstract:BACKGROUND:Nucleolar and spindle-associated protein 1 (NUSAP1) has been identified to be strongly implicated in the carcinogenesis of cervical carcinoma, breast cancer, and liver cancer, and shows a high expression level in bladder cancer, indicating that NUSAP1 might be a potent target for cancer treatment. Using bioi...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.23193
更新日期:2020-05-01 00:00:00
abstract::Premortem diagnosis of the DiGeorge syndrome and its partial variants relies on the demonstration of a primary defect in cell-mediated immunity, generally in the setting of an infant with congenital heart disease, hypocalcemia, absence of a thymic shadow, and typical dysmorphic features. Although T-cell enumeration is...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860030105
更新日期:1989-01-01 00:00:00
abstract:BACKGROUND:Reference intervals are critical for interpreting test results of a clinical laboratory. The aim of this study was to establish local reference intervals of complete blood count for healthy preschoolers in China. METHODS:Three thousand eight hundred and twenty-one blood specimens from children aged 4 months...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.22095
更新日期:2017-09-01 00:00:00
abstract::We have evaluated a new latex nephelometric test for the quantitation of myoglobin in human serum. The assay consists of incubating the diluted serum sample (20-fold) for 12 min at room temperature with latex particles covalently coated with anti-myoglobin antibodies and then quantifying the change of light-scatter pr...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860050305
更新日期:1991-01-01 00:00:00
abstract::The experimental and clinical effectiveness of nasal salmon calcitonin (SCT) for treatment of osteoporosis in humans has been well established, but none is known yet about the pharmacokinetic property in relation to therapeutic efficacy, especially when used in a therapeutic dose range. This preclinical study was desi...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/(sici)1098-2825(1997)11:3<129::aid-jcla2>3
更新日期:1997-01-01 00:00:00
abstract:BACKGROUND:This study aimed to evaluate the association of circular RNA La-related RNA-binding protein 4 (circ-LARP4) with clinical features and prognosis in osteosarcoma patients, and further explore its effect on chemosensitivity in osteosarcoma cells. METHODS:Seventy-two osteosarcoma patients with Enneking stage II...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.23045
更新日期:2020-02-01 00:00:00
abstract::A sensitive time-resolved fluorimetric immune-complex-transfer immunoassay for antithyroglobulin IgG in serum is described. Antithyroglobulin IgG in test serum was reacted with dinitrophenyl europium ion-labeled thyroglobulin. The complex formed of antithyroglobulin IgG and dinitrophenyl europium ion-labeled thyroglob...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860040315
更新日期:1990-01-01 00:00:00
abstract::The incidence of aneuploidy was determined by flow cytometric analysis in paraffin-embedded tumor samples of 125 patients with non-Hodgkin lymphoma (NHL). There were 48 low-grade (LG) and 77 high-grade (HG) tumors. Aneuploidy was found in 34 (27%) NHL, 15 (31%) LG, and 19 (25%) HG tumors. The analysis of patient survi...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860090602
更新日期:1995-01-01 00:00:00
abstract:BACKGROUND:Ischemic stroke is one of the most prominent and serious neurological complications of infective endocarditis (IE). Our study was designed to evaluate the predictive value of higher level of plasma D-dimer on admission for the development of ischemic stroke in patients with IE. METHODS:In this prospective s...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.23206
更新日期:2020-05-01 00:00:00
abstract:BACKGROUND:The sialylation of serum proteins and lipids changes in liver diseases of different etiologies and could change the total sialic acid (TSA), lipid-bound SA (LSA), and free SA (FSA) levels in the sera. However, little is known of the relationship of serum SAs concentrations and the severity of liver disease. ...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21711
更新日期:2014-11-01 00:00:00