Abstract：
:Four commercial assays for the screening of cannabinoids in urine were compared. Urine specimens from 93 selected subjects were run by fluorescence polarization immunoassay on the Abbott TDx; by enzyme multiplied immunoassay with two Syva EMIT assays; and by thin-layer chromatography with the TOXI-LAB system (Marion Laboratories). The TDx cannabinoid threshold can be set anywhere from 25 to 150 micrograms per L. Twenty-five micrograms per L was chosen for this study. The thresholds for EMIT are fixed at 20 micrograms per L for one assay and 100 micrograms per L for the other. The detection limit for TOXI-LAB, according to the manufacturer, can be anywhere from 5 to 50 micrograms/L, depending on the specimen. Urines, positive by at least one method, were further analyzed by gas chromatography with mass spectrometry (GC/MS), The detection limit for the GC/MS method was 10 micrograms per L. The results showed a few false negatives and unconfirmable positives; in general, correlation was considered acceptable. Dose-response curves comparing TDx and EMIT gave paralell results, with comparable cross-reactivity for the major metabolite, 11-nor-delta-9-tetrahydrocannabinol-9-carboxylic acid (delta-9-THC-COOH). A dose-response study of TOXI-LAB using delta-9-THC-COOH also gave acceptable results. Adsorption to glass was investigated using spiked urine; a 27 percent reduction in concentration was caused by this phenomenon. Foaming of spiked urine caused by vigorous mixing resulted in a reversible 89 percent apparent reduction in concentration.
journal_name
Ann Clin Lab Scijournal_title
Annals of clinical and laboratory scienceauthors
Dextraze P,Griffiths WC,Camara P,Audette L,Rosner Msubject
Has Abstractpub_date
1989-03-01 00:00:00pages
133-8issue
2eissn
0091-7370issn
1550-8080journal_volume
19pub_type
杂志文章abstract：:Excessive production of hydroxyl radicals in blood and liver has previously been demonstrated by us in rats with obstructive jaundice induced by common bile duct ligation (CBDL). In this study, we demonstrate overproduction of superoxide radicals in circulating blood of CBDL rats by the lucigenin-amplified chemilumine...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2001-10-01 00:00:00
abstract：:Male Sprague-Dawley rats were subjected for 2 weeks to daily injections of homocysteine (Hcy), which increased plasma Hcy approximately 2-fold. Echocardiography indicated significant increases in left ventricular diastolic (13%) and systolic (31%) dimensions and decreases in posterior wall thickness (diastolic, -17%; ...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2004-04-01 00:00:00
abstract：BACKGROUND:Quality assurance of newly developed or manufactured blood grouping reagents with reagent red blood cells (RBCs) is crucial in the process of product approval by governmental agency. However, RBCs with rare blood group are not easily available in the fresh state. We investigated the feasibility of cryopreser...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2018-03-01 00:00:00
abstract：:Screening programs using determinations of serum thyroxine have demonstrated that congenital hypothyroidism occurs in one in 4,000 live births in North America. More than 90 percent of affected infants have primary hypothyroidism with elevated plasma thyrotropin (TSH) levels. Since the feasibility of newborn screening...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：1986-01-01 00:00:00
abstract：:People of the Jehovah's Witness faith believe that they shall "abstain from blood." Because of this belief, we encounter the challenges from Jehovah's Witness patients who actively seek medical care for themselves and their children, but refuse the transfusion of blood products, which may result in increased morbidity...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2016-12-01 00:00:00
abstract：:A statistically significant difference was found between the mean baseline carboxyhemoglobin of non-smoking firemen (COHb 2.53, sd = 1.05, n = 32) and smoking firemen (COHb 5.54, sd = 2.61, n = 26). A consistent increase in mean COHb levels after exposure to smoke was seen in both non-smoking (4.41 sd = 2.95, n = 7) a...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：1976-09-01 00:00:00
abstract：:Macrophage-migration inhibition factor (MIF) is a lymphocyte-derived substance which plays an important role in cell mediated immunity. Soluble factors containing MIF-like activity and produced by non-stimulated and virus-infected non-lymphoid cell cultures have also been reported. In the present study, a MIF-like fac...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：1978-09-01 00:00:00
abstract：OBJECTIVE:MicroRNAs (miRNAs) are associated with hepatocellular carcinoma (HCC) progression and metastasis. However, it is unclear whether they could act as biomarkers for HCC diagnosis and prognosis. METHODS:In this study, the miR-122 and miR-199a expression levels were determined by quantitative real-time PCR (qRT-P...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2020-03-01 00:00:00
abstract：:Male Swiss Webster mice were fed a diet containing 2.5 percent griseofulvin (GF). Serially progressive light and electron microscopic hepatic altertions were present from one day on and grossly visible hepatomegaly from two weeks until termination at 22 weeks. GF induced liver changes included hepatocyte nuclear and c...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：1979-01-01 00:00:00
abstract：:Gain-of-function mutations of the CKIT gene have been reported to specifically occur in core-binding factor (CBF) acute myeloid leukemia (AML) with a poor prognostic implication. Here we report a case of therapy-related AML with t(9;11)(p22;q23) who had CKIT mutation. A 48-year-old woman with breast cancer received pa...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2011-04-01 00:00:00
abstract：:Coronary heart disease (CHD), the leading cause of death in the western world, is multifactorial in nature. Abnormal lipoprotein levels are among the risk factors that cause atherosclerosis and, therefore, have been used as biochemical markers in assessing risk of developing CHD. The measurement of serum cholesterol, ...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章,评审
doi：
更新日期：1988-11-01 00:00:00
abstract：CONTEXT:Myotonic dystrophies (DMs) are a group of autosomal dominant neuromuscular disorders which are caused by large CTG/CCTG-repeat expansions in untranslated regions of DMPK/ZNF9 gene. The "phenotypic overlap" in DMs creates complication in distinguishing patients with DM1 from patients with DM2 and underscores the...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2015-10-01 00:00:00
abstract：:While there is no single best procedure for performing prenatal diagnosis, ther is a rationale or strategy which will produce correct, reliable results. The investigator should be experienced with all the tests and know what to expect from each. At least two of these tests should e used (more if there s ambiguity) on ...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章,评审
doi：
更新日期：1982-09-01 00:00:00
abstract：:The microbiome has recently become a key interest for cancer research. Anti-tumor effects of reinforced clostridium media (RCM) were investigated for all ingredients of RCM, which showed that yeast extract could be a candidate for this phenomenon. MTT assay, cell counting, cell death analysis, cell cycle analysis, and...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2020-01-01 00:00:00
abstract：:Erythropoietin is a hormone produced by the kidneys and by certain extrarenal tissues and released into the circulation in response to tissue hypoxia. Its study has provided new information about oxygen transport and bone marrow stem cell function and its determination in plasma can give valuable diagnostic clues as t...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：1980-05-01 00:00:00
abstract：:Utilizing fetal electrocardiography, ultrasound, M-mode and two dimensional echocardiography, fetal cardiac function, structure, and rhythm were studied in pregnancies with obstetrical risk factors. Risk factors for fetal cardiac abnormalities were defined to include: maternal diabetes, connective tissue disorders; Rh...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：1982-03-01 00:00:00
abstract：:We report the case of a 45 year old man who came to Emergency Room of Polyclinic for sudden onset of localized ecchymosis and widespread hematomas. He was subjected to blood count and first level investigations to assess coagulation. Based on the results, second level investigations were performed. Endoscopy of the ga...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2014-07-01 00:00:00
abstract：GOALS:This study aims to examine the effects of raising the reporting age for benign endometrial cells (BEC) on Papanicolaou (Pap) tests according to the 2014 3rd edition of the Bethesda System for Cervical Cytology, as well as the sequelae of the 2012 American Society of Colposcopy and Cervical Pathology (ASCCP) guide...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2017-05-01 00:00:00
abstract：:In vitro determination of allergen-specific IgE (sIgE) represents an important aid in the diagnosis and treatment of allergy. Improvements in laboratory methodology--the development of second, and now third generation assays for sIgE--have brought about major advances in speed, convenience, performance, and in the sta...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2004-01-01 00:00:00
abstract：:We report a case of a 69-yr-old previously healthy man with acute spontaneous Achilles tendon rupture and severe tendonitis, which occurred after 2 weeks of steroid therapy for newly diagnosed giant cell arteritis. The Achilles tendon rupture was treated conservatively and the tendonitis resolved incrementally with st...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2003-07-01 00:00:00
abstract：:This work describes a case of Haemophilus influenzae serotype a meningitis in Brazil, after almost a decade since the introduction of Haemophilus influenzae serotype b conjugate vaccine. Uncertainty about the replacement of H. influenzae serotypes as a cause of invasive diseases justifies continuous surveillance, coup...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2009-10-01 00:00:00
abstract：:Diabetes-induced hyperglycemia has a direct damaging effect on ovarian function. Despite its deadly impact on ovaries, the mechanism of this condition has not been fully elucidated. Glucose transporters are involved in glucose uptake and utilization. Many transporters have been detected in the ovaries, but their roles...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2019-11-01 00:00:00
abstract：:Neuropeptide modulation of hematopoietic stem cell differentiation was studied in an in vitro murine system. Endorphins were able to influence the erythropoietin-dependent differentiation of bone marrow cells into erythroid colony forming units in a dose dependent manner. The effects on progenitor cell maturation were...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：1987-09-01 00:00:00
abstract：:To define further the nature of the decreased responsiveness of neonatal neutrophils to chemotactic factor stimulation, neutrophil shape change induced by various concentrations of N-formyl-methionyl-leucyl-phenyl-alanine (fMLP) was studied using a whole blood assay. Samples from 48 full term neonates and paired healt...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：1985-11-01 00:00:00
abstract：:While pathogenic T cells have been identified for several diseases with epithelial cell damage, an autoimmune T cell-mediated response targeted against a known keratinocyte antigen has not been reported. Previously we described an autoimmune response directed to the mouse epidermal cell antigens, Skn. For our murine m...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2002-04-01 00:00:00
abstract：:Published data on the association between CYP3A4*1B polymorphism and cancer risk are inconclusive. To derive a more precise estimation of the association, we conducted a meta-analysis. A systematic search of the PubMed database was performed. A total of 55 separate studies including 22072 cancer cases and 25433 contro...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章,meta分析
doi：
更新日期：2018-07-01 00:00:00
abstract：:Syringocystadenoma papilliferum (SP) commonly arises in conjunction with nevus sebaceous. Other less common lesions reported with SP include apocrine adenoma, condyloma acuminatum, hidradenoma papilliferum associated with hidrocystoma, poroma folliculare, and a single case ofverrucous carcinoma. We report the second c...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2002-10-01 00:00:00
abstract：:Fractionation of serum alkaline phosphatase by either biochemical or electrophoretic techniques is often insufficient to determine the source of the elevated serum enzyme. In 31 unselected patients with high serum alkaline phosphatase a simultaneous determination of serum gamma glutamyl transpeptidase and urinary hydr...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：1978-03-01 00:00:00
abstract：:We present an adult autopsy case of primary hyperoxaluria type 1. Diagnosis was established with skin biopsy and subsequent genetic analysis one month prior to death. At autopsy, calcium oxalate crystals refringent to polarized light were found systemically. Interestingly, however, calcium oxalate crystals were not id...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章
doi：
更新日期：2013-07-01 00:00:00
abstract：:The pathologic evaluation of hepatic changes secondary to drug ingestion is a difficult task because of the limited histologic response of the liver to hepatotoxins. The majority of these pharmacologic agents produce cholestasis, hepatitis, or both. Some drugs will produce damage if given for a sufficient time and in ...
journal_title：Annals of clinical and laboratory science
pub_type： 杂志文章,评审
doi：
更新日期：1988-05-01 00:00:00
