Abstract:
:Different methodological aspects on the assay of human erythrocyte catechol-O-methyltransferase (COMT) activity were studied. No temporal variations were found either over a 24 hour period or over one month. Erythrocytes from whole blood collected with any of the anticoagulants heparin, EDTA or citrate could be used as the enzyme source provided the cells were washed in saline. The COMT activity in lysed erythrocytes was rapidly lost when the lysate was stored at +4 degrees C and -20 degrees C. Intact erythrocytes could be stored up to one week in +4 degrees C without considerable loss of activity. The COMT activity was stable for at least two years when storing the cells at -85 degrees C. Freeze-thawing and hypotonic disruption of the erythrocytes resulted in the same activity and neither freeze-thawing nor sonication altered the apparent Km for the substrate. Noradrenaline and 3,4-dihydroxybenozic acid (DBA) could both be used as substrates although DBA gave higher activity values and had a higher affinity to the enzyme. The COMT activity increased with increasing concentration of the methyl-donor S-adenosyl-1-methionine up to approximately 0.1 mM. Preincubation at 47 degrees C decreased the COMT activity whereas the apparent Km values remained unchanged. The present COMT assay was convenient and reproducible and could be used with small amounts of blood with different kinds of anticoagulants. Interactions with plasma factors were avoided by washing the erythrocytes with isotonic sodium chloride.
journal_name
Ups J Med Scijournal_title
Upsala journal of medical sciencesauthors
Floderus Y,Sääf J,Ross SB,Wetterberg Ldoi
10.3109/03009738109179242subject
Has Abstractpub_date
1981-01-01 00:00:00pages
309-18issue
3eissn
0300-9734issn
2000-1967journal_volume
86pub_type
杂志文章abstract::Since 1975 Sweden has had a patient insurance system to compensate patients for health-related injuries. The system was initially based on a voluntary patient insurance solution, but in 1997 it was replaced by the Patient Insurance Act. The current Act covers both physical and mental injuries. Although about 9,000-10,...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/03009730903350749
更新日期:2010-05-01 00:00:00
abstract::Twenty-seven women with secondary amenorrhoea have been treated with pulsatile subcutaneous luteinising hormone releasing hormone (LHRH). Serial ultrasonic observations of increasing follicular diameters and changes in the size of the uterus have been recorded. The rate of the increase of the diameter of dominant foll...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/03009738409178460
更新日期:1984-01-01 00:00:00
abstract::We herein outline the rationale for a Swedish cohort consortium, aiming to facilitate greater use of Swedish cohorts for world-class research. Coordination of all Swedish prospective population-based cohorts in a common infrastructure would enable more precise research findings and facilitate research on rare exposure...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.1080/03009734.2018.1556754
更新日期:2019-01-01 00:00:00
abstract::There are few reports concerning the gait characteristics of sciatic nerve palsy. Four cases, one with complete palsy and three with incomplete palsy, are presented. Complete palsy (case 1) was due to sacrifice of the sciatic nerve in a wide excision for chondrosarcoma in the left ischium. Incomplete palsy (cases 2, 3...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/2000-1967-116
更新日期:2003-01-01 00:00:00
abstract::The occurrence of bacteriuria in spinal cord injured patients with neurogenic bladder dysfunction who used clean intermittent catheterisation to empty their bladders was studied in order to examine cut-off concentration breakpoints for significant bacteriuria in this group of patients using procedures of the European ...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/2000-1967-107
更新日期:2004-01-01 00:00:00
abstract:BACKGROUND:Shoulder external rotation braces used for patients with a first-time shoulder dislocation are designed with a variety of arm positions in abduction as well as external rotation. However, few studies have focused on their immobilizing performance, comfort, or user-friendliness. Especially, there have been no...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/03009734.2012.744374
更新日期:2013-05-01 00:00:00
abstract::A new stimulatory luteinizing hormone-releasing hormone (LRH) analogue D-Ser(TBU)(6)-EA(10)-LRH was administered subcutaneously in a dose of 10 microg into 10 women with amenorrhoea. The injection resulted in a 20-fold increase of the LH level in blood and a 5-fold increase of the FSH level with maxima at 4 and 6 h af...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/03009737709179054
更新日期:1977-01-01 00:00:00
abstract::During the last decade, capillary electrophoresis (CE) has emerged as an interesting alternative to traditional analysis of serum, plasma and urine proteins by agarose gel electrophoresis. Initially there was a considerable difference in resolution between the two methods but the quality of CE has improved significant...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/2000-1967-219
更新日期:2008-01-01 00:00:00
abstract:OBJECTIVES:The incidence of fentanyl-induced cough (FIC) during induction of general anesthesia varies around 40% and is undesirable. It increases intracranial, intraocular, and intra-abdominal pressures. This prospective, randomized, double-blind, placebo-controlled study evaluated the effect of dexmedetomidine (DEX) ...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章,随机对照试验
doi:10.3109/03009734.2011.629749
更新日期:2012-03-01 00:00:00
abstract::The patterns of fingertip prints (dermatoglyphics) in Swedish series of sexual offenders of law compared with common offenders of law and normal individuals were analysed. The dermatoglyphic patterns in common offenders of law did not differ from those in normal individuals. The group of sexual offenders of law showed...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/03009739409179351
更新日期:1994-01-01 00:00:00
abstract::This study was undertaken to evaluate the utility of a modified technique of triplex scanning of the lower extremity arteries in 20 subjects without any clinical signs of arterial disease. The distal aorta and iliac arteries were examined with the subject in supine position and lying slightly on the opposite side. By ...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/03009739609178917
更新日期:1996-01-01 00:00:00
abstract::One hundred and fifty women with a diagnosis of toxaemia of pregnancy treated in the Department of Obstetrics and Gynaecology, University Hospital, Uppsala between 1964 and 1968 were investigated. One hundred women were still living in the area in 1975 and thus could be restudied. The participation rate was 100% in th...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/03009737809179119
更新日期:1978-01-01 00:00:00
abstract::The present investigation on 20 patients after total hip replacement surgery has confirmed that the posttraumatic increase of the fibrinolysis inhibition activity (FIA) in serum and plasminogen-depleted serum is due to the primary fibrinolysis inhibitor (PFI, alpha 2-antiplasmin). This protein exists in at least two f...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/03009738209178409
更新日期:1982-01-01 00:00:00
abstract::Although AL amyloidosis usually is a systemic disease, strictly localized AL deposits are not exceptionally rare. Such case reports form a considerable body of published articles. Although both AL amyloidosis types are formed from an N-terminal segment of a monoclonal immunoglobulin light chain, a typical localized AL...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章,评审
doi:10.3109/03009734.2012.654861
更新日期:2012-05-01 00:00:00
abstract::The purpose of this study is to verify that compound muscle action potentials (CMAPs) generated a stationary potential and to examine extension of the CMAPs away from the stimulated muscle. A referential derivation and/or bipolar derivation to record the stationary potentials were carried out following tibial nerve st...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/2000-1967-103
更新日期:2004-01-01 00:00:00
abstract::The effect of a 20 min continuous infusion of noradrenaline (2 nanomoles/min) on the blood flow and vascular resistance of 2-, 6- and 11-day-old corpora lutea from adult pseudopregnant rats was studied. Pseudopregnancy was induced by mating with vasectomized male rats. The blood flow of the corpus luteum and the remai...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.1517/03009734000000033
更新日期:1988-01-01 00:00:00
abstract:INTRODUCTION:Many women and men lack knowledge about fertility, including timing of the fertile window, age-related decline, and lifestyle factors that may impair fertility. The Internet has become an important source of information, but evidence-based information on fertility and reproduction in Swedish on the Interne...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.1080/03009734.2018.1476423
更新日期:2018-06-01 00:00:00
abstract:BACKGROUND:Open reduction and internal fixation using an interlocking plate system has gained popularity for the treatment of dorsally displaced distal radius fractures. PURPOSE:To evaluate the functional and radiological results of treating unstable distal radius fractures with the volar locking plate. PATIENTS AND ...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/03009734.2011.594183
更新日期:2011-11-01 00:00:00
abstract::Platelet-derived growth factor B (PDGF-B) is a growth factor promoting and regulating cell migration, proliferation, and differentiation, involved in both developmental processes and in maintaining tissue homeostasis under strict regulation. What are the implications of prolonged or uncontrolled growth factor signalin...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/03009734.2012.654860
更新日期:2012-05-01 00:00:00
abstract::The urine sediment of 12 geriatric patients with indwelling catheters was quantified by the glutaraldehyde-cytocentrifuge method prior to, during and after a clinical trial of methenamine hippurate (MH), 2 g x 3 daily given for 34 days as the sole therapeutic agent for the urinary tract infection. The median leukocyte...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/03009737909179142
更新日期:1979-01-01 00:00:00
abstract::Cytosolic carbonic anhydrases CAI, CAII, and CAIII from liver, and CAII, and CAIII from muscle of adult male Sprague-Dawley rats were purified to homogeneity. CAIII from liver and muscle had the same amino acid composition and were immunochemically similar. Their kinetic properties at 0 degrees C were also similar. Km...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/2000-1967-131
更新日期:2002-01-01 00:00:00
abstract::The acute phase reaction is an unspecific response to inflammatory stimuli characterized by alterations in the concentration of several plasma proteins. It is of great clinical value to monitor the inflammatory state in patients with rheumatoid arthritis. The erythrocyte sedimentation rate (ESR) and C-reactive protein...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/03009739809178943
更新日期:1998-01-01 00:00:00
abstract::In 2 monkeys of the species Macaca fascicularis the three dorsal column nuclei and the lateral cervical nucleus have been investigated immunocytochemically with antiserum against Substance P. The Substance P labeling was widely spread but rather sparse. It occurred in small structures of the size of boutons in the gra...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/03009738909178557
更新日期:1989-01-01 00:00:00
abstract::Post-heparin plasma hepatic triglyceride lipase (H-TGL) and lipoprotein lipase (LPL) activities were 8-34 and 3.5-21 (range) mu mol/ml/hr respectively in males with normal serum lipid concentrations. In females the corresponding values were 4-25 and 4-16 mu mol/ml/hr. No significant differences were observed between a...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/03009737909179158
更新日期:1979-01-01 00:00:00
abstract::Gastrointestinal transit was measured in non-obese diabetic (NOD) mice, as an animal model of human diabetes type 1, and in obese diabetic mice, as an animal model of human diabetes type 2. The endocrine cells known to correlate to gastrointestinal transit, namely secretin, serotonin, Peptide YY (PYY) and enteroglucag...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/2000-1967-139
更新日期:2002-01-01 00:00:00
abstract::The morphological changes in the liver and pancreas during the first 12 hours in the acute afferent loop syndrome were studied in rats with a Billroth II gastric resection. Two essentially different types of changes were found in the pancreas. One was a coagulative necrosis without an inflammatory reaction, which has ...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/03009737609179023
更新日期:1976-01-01 00:00:00
abstract:OBJECTIVE:Women previously giving birth with cesarean section have an increased risk of postpartum hemorrhage (PPH) and retained placenta. The objective of this study was to determine if anterior placental location increased the risk of PPH and retained placenta in such women. MATERIALS AND METHODS:We performed a pros...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.1080/03009734.2017.1356405
更新日期:2017-08-01 00:00:00
abstract::Acid phosphatase in serum was measured in 116 patients with prostatic disease, benign in 59 and malignant in 57 cases. Comparisons were made between radioimmunoassay (RIA) and an enzymatic method. The correlation coefficient between the respective values was 0.96 in patients with untreated prostatic cancer, indicating...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/03009738309178446
更新日期:1983-01-01 00:00:00
abstract:BACKGROUND:Whether written feedback on drug prescribing in general practice affects prescribing habits is controversial. Most short-term studies showed no effect. However, the issue has not been tested in long-term studies involving the local general practitioner community. AIMS OF THE STUDY:To assess whether prescrib...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/03009734.2010.487165
更新日期:2010-11-01 00:00:00
abstract::Isokinetic torque of the knee and elbow during maximal extension and flexion and isometric strength of the handgrip, as well as balance and some circulatory variables, were tested in 37 patients one year after an acute stroke. Correlations with locomotion, household work and other activities of daily living (ADL) were...
journal_title:Upsala journal of medical sciences
pub_type: 杂志文章
doi:10.3109/03009738209178405
更新日期:1982-01-01 00:00:00