Abstract:
:Qualitative urinary screening procedures were converted to quantitative methods for urinary cystine and homocystine based on the reactions between these amino acids and cyanide-nitroprusside reagents. Cystine and homocystine are quantified by the measurement of absorbances at 521 and 524 nm, respectively. Cyanide-nitroprusside reacts with both cystine and homocystine. However, in the presence of silver nitrate, only homocystine reacts to produce a magenta color. Following the cyanide-nitroprusside reaction, absorbance must be read within three minutes for cystine and immediately for homocystine. The stability of the absorption spectra has no apparent effect on these quantitative assays. Amino acid concentrations are expressed as ratios to creatinine, which tends to eliminate false negative results in dilute urine specimens. The normal urine value for cystine and homocystine combined is 66.8 +/- 52 (n = 50) mg per g creatinine. The normal value for homocystine alone is 29.9 +/- 16.8 (n = 24) mg per g creatinine. The simplicity of these procedures allows these quantitative methods to be used as screening tests for cystinuria and homocystinuria.
journal_name
Ann Clin Lab Scijournal_title
Annals of clinical and laboratory scienceauthors
Wu JT,Wilson LW,Christensen Ssubject
Has Abstractpub_date
1992-01-01 00:00:00pages
18-29issue
1eissn
0091-7370issn
1550-8080journal_volume
22pub_type
杂志文章abstract::Histologic sections of thyroid glands resected from 12 patients with Hashimoto's thyroiditis have been studied in which areas were present showing clear nuclear changes such as those seen in papillary carcinoma. The patients' ages ranged from 28 to 78 years (mean = 57.3); 11 were women and one was a man. The lesions p...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章
doi:
更新日期:1995-11-01 00:00:00
abstract::To evaluate the screening power of the fecal cytokeratin-19 test (CK-19) and the fecal occult blood test (FOBT), we performed rapid fecal CK-19 and FOBT tests on 515 stool samples from patients with various GI diseases and 814 stool samples from control patients. The rapid fecal CK-19 test (developed by DiNonA Researc...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章
doi:
更新日期:2006-07-01 00:00:00
abstract::Adherence of 14C-glucose labeled Candida albicans to vaginal epithelial cells was measured in the presence of 10 potential inhibitory sugars at concentrations of 5 to 150 mg per ml for 90 minutes at 37 degrees C. In competitive inhibition experiments, no inhibition of adherence was seen with any sugar at any concentra...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章
doi:
更新日期:1985-09-01 00:00:00
abstract::More than 300 million routine clinical analyses are performed annually in the United States. Methods for routine clinical urine examination, including detection of bacteriuria, are briefly reviewed. Prospects of some newer, better techniques to carry out such analyses are introduced. A preliminary report is presented ...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章,评审
doi:
更新日期:1999-07-01 00:00:00
abstract::M. Tuberculosis (MTB) is an obligate human parasite even though humans are more resistant than any of the animals used for study. It is a human parasite because only humans develop post primary tuberculosis (TB) in their lungs that mediates transmission of infection to new hosts. The extreme paucity of human lung tiss...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章
doi:
更新日期:2014-10-01 00:00:00
abstract::Acanthocytosis represents an unusually pathological variant of red cell morphology which is encountered in a diverse group of inherited and acquired disease states. While the morphological features are similar in all instances, the biochemical lesions frequently differ. Most demonstrable abnormalities involve lipids a...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章,评审
doi:
更新日期:1980-05-01 00:00:00
abstract:BACKGROUND:Nuclear factor-kappaB (NF-kappaB) is synthesized in the cytoplasm, complexed with its inhibitor, I-kappaB, and NF-kappaB is released in an activated (phosphorylated) form following phosphorylation of I-kappaB and proteasomal degradation of the NF-kappaB.p-kappaB complex. The free p-NF-kappaB can then be tran...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章
doi:
更新日期:2005-07-01 00:00:00
abstract::The radiation modifying effect and toxicity of tetraethylthiuram disulfide (disulfiram) have been studied. Disulfiram (DSM) inhibits aldehyde dehydrogenase, dopamine-beta-oxygenase, microsomal mixed-function oxidases and cytochrome P-450 enzymes. It is widely used for aversion therapy in alcoholism. Disulfiram also in...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章
doi:
更新日期:1986-11-01 00:00:00
abstract::Interactions between human lymphocytes and target cells are highly variable. Lymphocytes may enter fibroblasts, establish cytoplasmic bridges, and draw material through these bridges from the fibroblasts; these lymphocytes may undergo divisions within the fibroblasts, while the fibroblasts vacuolize and die. In this i...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章
doi:
更新日期:1986-11-01 00:00:00
abstract::Testicular changes preceding and accompanying the initiation of spermatogenesis are reviewed. The complex cellular changes occurring in the developing testis are found to be particularly well defined with the use of electron microscopy. The findings suggest that electron microscopic examination may be useful in the ev...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章,评审
doi:
更新日期:1975-01-01 00:00:00
abstract::This study evaluated the performance of a handheld coagulation analyzer for measurements of capillary blood specimens of 93 outpatient cardiology patients with atrial fibrillation who were receiving oral anti-coagulant therapy. The international normalized ratio (INR) results of the CoaguChek XS system (Roche Diagnost...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章
doi:
更新日期:2008-01-01 00:00:00
abstract::A quality control program of analyses of toxic metals in urine has been carried out in the Nordic countries since 1978. In connection with these programs, the advantages and disadvantages of lyophilized compared to natural urine specimens as control materials have been investigated in three successive similar studies....
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章
doi:
更新日期:1987-05-01 00:00:00
abstract::The aim of the study was to determine if amniotic fluid cells of rats can be used to provide evidence of genotoxicity. In order to do that micronuclei formation was induced in rats during pregnancy after treatment with cyclophosphamide (CP), at different CP doses. On gestational day 19, we collected the amniotic fluid...
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::Urine p-aminophenol (PAP) concentration serves as a biological marker for occupational exposures to aniline. We report the development of a rapid, simple spectrophotometric method for quantification of urine PAP concentration using a chemical autoanalyzer (Olympus Reply). The method involves oxidative coupling of PAP ...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章
doi:
更新日期:2004-07-01 00:00:00
abstract::Recent improvement in imaging technology has enabled ultrasound to assume an increasingly vital role in the identification and evaluation of renal disease. Renal masses can be differentiated. The nonfunctioning kidney can be imaged and obstruction or inflammation diagnosed. When further information is needed, an ultra...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章,评审
doi:
更新日期:1981-07-01 00:00:00
abstract::Alterations in ion transport have been implicated in the pathogenesis of several disease states. Methods of studying ion transport, however, are rather tedious, time consuming and not well defined in terms of kinetics and reproducibility. This paper describes a rapid, simple method of examining ion transport in intact...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章
doi:
更新日期:1981-03-01 00:00:00
abstract::Traditional risk factors for coronary heart disease (CHD) include only the patient's age and family history and whether there is evidence of hypertension, elevated LDL, low HDL, diabetes or history of smoking. In recent years, considerable progress has been made in identifying a new generation of risk factors, includi...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章,评审
doi:
更新日期:1999-04-01 00:00:00
abstract:OBJECTIVE:The microscopic and chemical analysis of urine is essential for the diagnosis of patients with urinary tract infections (UTI). Quantitative urine culture is the 'gold standard' method for the diagnosis of UTI, but it is labour-intensive and time consuming. The DongJiu 8602 is a new automated urinalysis system...
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::Metastatic tumors to the breast from an extramammary site are rare entities and may present diagnostic difficulties for the surgical pathologist because of frequent histological similarities to primary neoplasms in this location. A case is reported of medullary thyroid carcinoma metastatic to the breast in a 28-year-o...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章
doi:
更新日期:1994-09-01 00:00:00
abstract::Small marker chromosomes (SMC) associated with severe Turner syndrome (TS) variants often represent reduced X chromosomes lacking the X inactivation center (XIC), perturbed dosage compensation, and unbalanced gene expression. A TS patient with mental retardation (MR), unusually short stature, facial and limb malformat...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章
doi:
更新日期:1995-01-01 00:00:00
abstract::It has been shown that the single nucleotide polymorphism (SNP) of the rs2735940 site in the human telomerase reverse transcriptase (hTERT) gene is associated with increased cancer risk. The traditional method to detect SNP genotypes is polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). How...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章
doi:
更新日期:2017-09-01 00:00:00
abstract::The aging process in man leads to some loss of kidney mass and function. The kidney produces epidermal growth factor (EGF), a polypeptide involved in the repairing process of epithelial cells. Human urine contains high concentrations of EGF, derived from its production in the kidney. It is not known if aging alters ur...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章
doi:
更新日期:1997-03-01 00:00:00
abstract::Erythrocytosis was induced in Fischer rats by intrarenal (ir) injection of nickel subsulfide (Ni3S2) in dosages ranging from 0.6 to 10 mg per rat. Measurements of blood packed cell volume (PCV) became increased by one month after ir injection of Ni3S2; reached maximum values at approximately two months; and gradually ...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章
doi:
更新日期:1977-01-01 00:00:00
abstract::The prognostic potentials of physiological ([Acute Physiologic and Chronic Health Evaluation] APACHE II score) and biochemical (Interleukin 6 [IL-6], Interleukin 6 soluble receptor [IL-6sR], and Interleukin 2 receptor [IL-2R], nitrates) measures were evaluated in sepsis. The APACHE II scores were calculated, and conce...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章
doi:
更新日期:1996-09-01 00:00:00
abstract:CONTEXT:Hepatitis C virus (HCV) infects up to 1.8% of the US general population, although the rate is significantly higher in military veterans at 5.4-20%. Early detection and accurate diagnosis are critical as chronic HCV infection can lead to liver cirrhosis and hepatocellular carcinoma. Genotype analysis has both th...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章
doi:
更新日期:2012-10-01 00:00:00
abstract::A brief historical review is presented of the development of bovine serum albumin as a standard for the determination of serum total protein. Bovine serum albumin is now available as a standard reference material from the National Bureau of Standards. Also reviewed is the present status of the immunoglobulin standards...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章
doi:
更新日期:1978-05-01 00:00:00
abstract::The serum fructosamine concentrations measured in 64 diabetic patients correlated (r = 0.73) with glycated hemoglobins (HbA1c). However, 23 percent of the diabetic patients had normal fructosamine and abnormal HbA1c levels. In order to determine whether or not the discrepant values were the result of recent glycemic r...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章
doi:
更新日期:1989-03-01 00:00:00
abstract::Five cases of intestinal microsporidiosis are reported, including one case of a heterosexual female acquired immunodeficiency syndrome (AIDS) patient, three homosexual males, and one bisexual male AIDS patients with detailed description of their clinical course. These five cases underscore the severity of immunodefici...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章
doi:
更新日期:1994-11-01 00:00:00
abstract::Blood lymphocyte distributions, serum immunoglobulin and cytokine levels, and serum IgE and IgG anti-varicella zoster virus (VZV) levels were measured in an atopic girl (age 15 yr) who developed shingles 10 yr after infection with chicken pox. Before, during, and 5 months after the shingles episode, the child's distri...
journal_title:Annals of clinical and laboratory science
pub_type: 杂志文章
doi:
更新日期:2009-01-01 00:00:00
abstract::In vitro determination of specific IgE antibodies in serum is the most frequently used method, besides the skin test, for diagnosing allergies. Standardized and reproducible assays of specific IgE antibodies contribute to the quality of diagnosis and treatment of allergic disease. This study compared the results and p...
journal_title:Annals of clinical and laboratory science
pub_type: 临床试验,杂志文章
doi:
更新日期:2005-07-01 00:00:00