Abstract:
:Serum gamma-glutamyl transferase (GGT) has been widely used as an index of liver dysfunction and marker of alcohol intake. The last few years have seen improvements in these areas and advances in understanding of its physiological role in counteracting oxidative stress by breaking down extracellular glutathione and making its component amino acids available to the cells. Conditions that increase serum GGT, such as obstructive liver disease, high alcohol consumption, and use of enzyme-inducing drugs, lead to increased free radical production and the threat of glutathione depletion. However, the products of the GGT reaction may themselves lead to increased free radical production, particularly in the presence of iron. There have also been important advances in the definition of the associations between serum GGT and risk of coronary heart disease, Type 2 diabetes, and stroke. People with high serum GGT have higher mortality, partly because of the association between GGT and other risk factors and partly because GGT is an independent predictor of risk. This review aims to summarize the knowledge about GGT's clinical applications, to present information on its physiological roles, consider the results of epidemiological studies, and assess how far these separate areas can be combined into an integrated view.
journal_name
Crit Rev Clin Lab Scijournal_title
Critical reviews in clinical laboratory sciencesauthors
Whitfield JBdoi
10.1080/20014091084227keywords:
subject
Has Abstractpub_date
2001-08-01 00:00:00pages
263-355issue
4eissn
1040-8363issn
1549-781Xjournal_volume
38pub_type
杂志文章,评审abstract::Microcytic red blood cell states are common clinical problems in both adult and pediatric age groups. The recent widespread availability of electronic blood cell counters for performing routine blood counts has increased the detection of microcytic red blood cells. Physicians must workup both symptomatic and asymptoma...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.3109/10408368209107028
更新日期:1982-01-01 00:00:00
abstract::Cardiotoxicity, including acute and late-onset cardiotoxicity, is a well-known adverse effect of many types of antitumor agents. Early identification of patients with cardiotoxicity is important to ensure prompt treatment and minimize toxic effects. The etiology of chemotherapy-induced cardiotoxicity is multifactorial...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.1080/10408363.2016.1261270
更新日期:2017-03-01 00:00:00
abstract::Regarding the widespread progression of diabetes, its related complications and detrimental effects on human health, investigations on this subject seems compulsory. AMP-activated protein kinase (AMPK) is a serine/threonine kinase and a key player in energy metabolism regulation. AMPK is also considered as a prime tar...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.1080/10408363.2019.1648376
更新日期:2019-11-01 00:00:00
abstract::Isoelectric focusing (IEF) as a method for differentiating macromolecules with minor differences in isoelectric points has demonstrated an increase in the degree of genetic polymorphisms of the blood. Studies over the last 5 to 6 years have shown that genetic marker systems such as transferrin (TF), phosphoglucomutase...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.3109/10408368409165772
更新日期:1984-01-01 00:00:00
abstract::Complement is a humoral effector system composed of 21 plasma proteins that was identified initially because of its cytolytic effects. In addition to cytolysis, complement has a number of different functions related to inflammatory and other host defense processes. The description of the reaction mechanism includes: (...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.3109/10408368609110272
更新日期:1986-01-01 00:00:00
abstract::Infants with very low birthweights (less than 1250g) are immunocompromised and have immature hematopoietic systems. They require frequent blood transfusions and have an increased susceptibility to infection. These very low birthweight infants who lack passively acquired antibody against CMV, acquire transfusion-associ...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.3109/10408368609165792
更新日期:1986-01-01 00:00:00
abstract::Fourier transform mid-infrared (MIR-FTIR) spectroscopy is a nondestructive, label-free, highly sensitive and specific technique that provides complete information on the chemical composition of biological samples. The technique both can offer fundamental structural information and serve as a quantitative analysis tool...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.1080/10408363.2017.1414142
更新日期:2018-01-01 00:00:00
abstract::The prevalence of secondary hypertension can be underestimated if appropriate tests are not performed. The importance of selecting patients with a high pre-test probability of secondary forms of hypertension is first discussed. The laboratory tests currently used for seeking a cause of hypertension are critically revi...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.1080/10408360600931831
更新日期:2007-01-01 00:00:00
abstract::Prostate cancer (PCa) is one of the most common age-related cancers among men. Various environmental and genetic factors are involved in the development and progression of PCa. In most cases, the primary symptoms of disease are not severe. Therefore, it is common for patients to be referred with severe clinical manife...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章
doi:10.1080/10408363.2019.1657061
更新日期:2020-01-01 00:00:00
abstract::Our understanding of risk factors for atherogenesis has changed significantly over the last decade. In addition to better grasp of the mechanism of action of the "classic" (causal) risk factors, a number of potentially important new factors has emerged. In this review we briefly summarize the evidence of the relation ...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.1080/20014091084245
更新日期:2001-10-01 00:00:00
abstract::The aim of this review is to summarize present evidence of an association between circulating levels of C-reactive protein (CRP) and cancer risk, and to evaluate whether elevated circulating CRP levels cause cancer. Additionally, the review provides background information on the acute-phase response, chronic inflammat...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.3109/10408363.2011.599831
更新日期:2011-07-01 00:00:00
abstract::The science of blood rheology (study of the flow and deformability of blood) is of increasing practical importance to the investigation of blood disorders. In diagnostic laboratories, rheological tests such as the erythrocyte sedimentation rate, zeta sedimentation ratio, and plasma viscosity are used to monitor patien...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.3109/10408369009105898
更新日期:1990-01-01 00:00:00
abstract::Isoforms of the receptor for advanced glycation end-product (RAGE) protein, which lack the transmembrane and the signaling (soluble RAGE or sRAGE) domains are hypothesized to counteract the detrimental action of the full-length receptor by acting as a decoy, and they provide a potential tool to treat RAGE-associated d...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章
doi:10.1080/10408363.2020.1791045
更新日期:2020-07-15 00:00:00
abstract::This manuscript offers a broad overview of the state of emergency toxicology testing in clinical laboratories. We summarize the specific challenges of performing emergency toxicology testing, introduce a variety of currently used methods including mass spectrometry, and compare and contrast the utility of different ty...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.1080/10408363.2019.1585415
更新日期:2019-06-01 00:00:00
abstract::The constrained economic context leads laboratories to centralize their routine analyses on high-throughput platforms, to which blood collection tubes are sent from peripheral sampling sites that are sometimes distantly located. Providing biochemistry results as quickly as possible implies to consolidate the maximum n...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.1080/10408363.2018.1499708
更新日期:2018-11-01 00:00:00
abstract::Bartter's and Gitelman's syndromes can be used as models to gain insight into the mechanisms responsible for maintaining/controlling vascular tone. In fact, the study of patients with these syndromes provides important insights into mechanistic details of the most relevant pathways of vascular tone. So far, several ex...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.1080/10408360091174295
更新日期:2000-12-01 00:00:00
abstract::von Willebrand factor (VWF) is a multimeric plasma protein that mediates platelet adhesion as well as platelet aggregation at sites of vascular injury and acts as a carrier of factor VIII. Although acquired or inherited VWF deficiency is associated with a bleeding tendency, there is increasing evidence that VWF has a ...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.1080/10408360600966753
更新日期:2007-01-01 00:00:00
abstract::The presence of circulating tumor cells (CTCs) in peripheral blood can serve as a "liquid biopsy" approach and has thus emerged lately as one of the hottest fields in cancer research. CTCs can be isolated from blood in a non-invasive approach, and can be used to follow patients over time since these cells can provide ...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.3109/10408363.2014.896316
更新日期:2014-06-01 00:00:00
abstract::Oncogenes and tumor suppressor genes are genes involved in cell proliferation and differentiation. They play a crucial role in the initiation and progression of cancer. Some of these genes are found to be altered in human cancers, i.e., mutated, amplified, deleted, translocated, or abnormally regulated. Recently, the ...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.3109/10408369209114603
更新日期:1992-01-01 00:00:00
abstract::Reviewed are the phosphorylation events reporting activation of protein kinases and the key substrates critical for the DNA damage signaling (DDS). These DDS events are detected immunocytochemically using phospho-specific Abs; flow cytometry or image-assisted cytometry provide the means to quantitatively assess them o...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.3109/10408363.2012.738808
更新日期:2012-09-01 00:00:00
abstract::Sepsis is an unusual systemic reaction to what is sometimes an otherwise ordinary infection, and it probably represents a pattern of response by the immune system to injury. A hyper-inflammatory response is followed by an immunosuppressive phase during which multiple organ dysfunction is present and the patient is sus...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.3109/10408363.2013.764490
更新日期:2013-01-01 00:00:00
abstract::Osteocalcin is a small (Mr 5800), very interesting bone specific protein, synthesized by osteoblasts and measured in plasma as a biochemical indicator of bone formation. Many immunoassays for osteocalcin have been developed, including radio- and enzymoimmunoassays, with the use of monoclonal and polyclonal antibodies....
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.3109/10408369109106867
更新日期:1991-01-01 00:00:00
abstract::The coupling of hematologic data with radionuclide studies of the spleen has provided information as to the functioning of the organ in a variety of disease states. The major radionuclide studies have been presented in terms of the type of information derivable and the various conditions that can result in fairly simi...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.3109/10408368909105717
更新日期:1989-01-01 00:00:00
abstract::Low molecular-mass plasma proteins play a key role in health and disease. Cystatin C is an endogenous cysteine proteinase inhibitor belonging to the type 2 cystatin superfamily. The mature, active form of human cystatin C is a single non-glycosylated polypeptide chain consisting of 120 amino acid residues, with a mole...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.1080/10408360490504934
更新日期:2004-01-01 00:00:00
abstract::Crohn's disease (CD) and ulcerative colitis (UC) are the two principal forms of inflammatory bowel disease (IBD). Animal studies show that bacteria are involved in the etiology of IBD, and much is now known about the inflammatory processes associated with CD and UC, as well as the underlying genetic, environmental, an...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.1080/10408360802485792
更新日期:2009-01-01 00:00:00
abstract::There have been numerous reports of spectrophotometric and volume problems caused by elevated levels of lipids in blood. The offending lipids, primarily triglycerides, not only cause turbidity leading to optical aberrations when added to analytical reagents, but also result in short-sampling errors leading to the meas...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.3109/10408368709105876
更新日期:1987-01-01 00:00:00
abstract::Non-alcoholic fatty liver disease (NAFLD) refers to the accumulation of hepatic steatosis not due to excess alcohol consumption. The prevalence of NAFLD is up to 30% in developed countries and nearly 10% in developing nations, making NAFLD the most common liver condition in the world. The pathogenesis of NAFLD is rela...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.3109/10408363.2011.596521
更新日期:2011-05-01 00:00:00
abstract::Acute pancreatitis is an acute inflammatory condition of the pancreas, which might extend to local and distant extrapancreatic tissues. The global incidence varies between 17.5 and 73.4 cases per 100,000 and the pathogenesis recognizes alcohol exposure and biliary tract disease as the leading causes, ahead of post-end...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.3109/10408363.2012.658354
更新日期:2012-01-01 00:00:00
abstract::The discovery of vitamin D receptor (VDR) expression in immune cells has opened up a new area of research into immunoregulation by vitamin D, a niche that is distinct from its classical role in skeletal health. Today, about three decades since this discovery, numerous cellular and molecular targets of vitamin D in the...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.3109/10408363.2015.1094443
更新日期:2016-01-01 00:00:00
abstract::Most clinical chemical analytes vary in a random manner around a homeostatic set point. Replicate analyses of a series of specimens collected from a group of subjects allows estimation of analytical, within and between subject components of variation. The preferred experimental procedures and statistical methods for e...
journal_title:Critical reviews in clinical laboratory sciences
pub_type: 杂志文章,评审
doi:10.3109/10408368909106595
更新日期:1989-01-01 00:00:00