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Advances in Clinical Chemistry

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https://www.readbyqxmd.com/read/28939215/preface
#1
EDITORIAL
Gregory S Makowski
No abstract text is available yet for this article.
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28939214/biological-and-molecular-characterization-of-circulating-tumor-cells-a-creative-strategy-for-precision-medicine
#2
Shukun Chen, Amin El-Heliebi, Thomas Kroneis
Circulating tumor cells (CTCs) are a group of rare cells disseminated from either primary or metastatic tumors into the blood stream. CTCs are considered to be the precursor of cancer metastasis. As a critical component of liquid biopsies, CTCs are a unique tool to understand the formation of metastasis and a valuable source of information on intratumor heterogeneity. Much effort has been invested in technologies for the detection of CTCs because they are rare cells among the vast number of blood cells. Studies in various cancers have repeatedly demonstrated that increased CTC counts prior to or during treatment are significantly associated with poor outcomes...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28939213/cytokines-and-microrna-in-coronary-artery-disease
#3
Hamed Mirzaei, Gordon A Ferns, Amir Avan, Majid G Mobarhan
Cardiovascular disease (CVD) is a major health problem globally. The high incidence and case fatality of CVD are, to a large extent, a consequence of its late diagnosis and lack of highly sensitive and specific markers. Only a very small number of biomarkers, such as troponin, detect late disease. There is some evidence of an association and dysregulation between specific cytokines in the pathogenesis of CVD. These molecules are involved in inflammatory and immune mechanisms associated with atherogenesis. Several molecular/cellular pathways that include STAT, MAPK, and SMAD are modulated by cytokines...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28939212/fortilin-a-potential-target-for-the-prevention-and-treatment-of-human-diseases
#4
Decha Pinkaew, Ken Fujise
Fortilin is a highly conserved 172-amino-acid polypeptide found in the cytosol, nucleus, mitochondria, extracellular space, and circulating blood. It is a multifunctional protein that protects cells against apoptosis, promotes cell growth and cell cycle progression, binds calcium (Ca(2+)) and has antipathogen activities. Its role in the pathogenesis of human and animal diseases is also diverse. Fortilin facilitates the development of atherosclerosis, contributes to both systemic and pulmonary arterial hypertension, participates in the development of cancers, and worsens diabetic nephropathy...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28939211/mirnas-nanomachines-that-micromanage-the-pathophysiology-of-diabetes-mellitus
#5
Shilpy Sharma, Abraham B Mathew, Jeetender Chugh
Diabetes mellitus (DM) refers to a combination of heterogeneous complex metabolic disorders that are associated with episodes of hyperglycemia and glucose intolerance occurring as a result of defects in insulin secretion, action, or both. The prevalence of DM is increasing at an alarming rate, and there exists a need to develop better therapeutics and prognostic markers for earlier detection and diagnosis. In this review, after giving a brief introduction of diabetes mellitus and microRNA (miRNA) biogenesis pathway, we first describe various in vitro and animal model systems that have been developed to study diabetes...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28939210/toward-a-blood-borne-biomarker-of-chronic-hypoxemia-red-cell-distribution-width-and-respiratory-disease
#6
Joseph W Yčas
Hypoxemia (systemic oxygen desaturation) marks the presence, risk, and progression of many diseases. Episodic or nocturnal hypoxemia can be challenging to detect and quantify. A sensitive, specific, and convenient marker of recent oxygen desaturation represents an unmet medical need. Observations of acclimatization to high altitude in humans and animals reveals several proteosomic, ventilatory, and hematological responses to low oxygen tension. Of these, increased red cell distribution width (RDW) appears to have the longest persistence...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28939209/calcium-and-bone-metabolism-indices
#7
Lu Song
Calcium and inorganic phosphate are of critical importance for many body functions, thus the regulations of their plasma concentrations are tightly controlled by the concerted actions of reabsorption/excretion in the kidney, absorption in the intestines, and exchange from bone, the major reservoir for calcium and phosphate in the body. Parathyroid hormone (PTH) and 1,25-dihydroxyvitamin D (1,25(OH)2D) control calcium homeostasis, whereas PTH, 1,25(OH)2D, and bone-derived fibroblast growth factor 23 (FGF 23) control phosphate homeostasis...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28629593/preface
#8
EDITORIAL
Gregory S Makowski
No abstract text is available yet for this article.
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28629592/measurement-and-clinical-utility-of-%C3%AE-ctx-in-serum-and-plasma
#9
Stephen A P Chubb, Samuel D Vasikaran
Biochemical markers of bone turnover (BTM) are released during bone remodeling and can be measured in blood or urine as noninvasive surrogate markers for the bone remodeling rate. The C-terminal cross-linked telopeptide of type I collagen (βCTX) is released during bone resorption and is specific to bone tissue. Assays have been developed to measure βCTX in blood and in urine; most current use of βCTX measurement for research and in clinical practice is performed on a blood sample. Method-specific differences for serum and plasma βCTX have led to initiatives to standardize or harmonize βCTX commercial assays...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28629591/peptide-antibodies-in-clinical-laboratory-diagnostics
#10
Nicole H Trier, Gunnar Houen
Peptide antibodies, with their high specificities and affinities, are invaluable reagents for peptide and protein recognition in biological specimens. Depending on the application and the assay, in which the peptide antibody is to used, several factors influence successful antibody production, including peptide selection and antibody screening. Peptide antibodies have been used in clinical laboratory diagnostics with great success for decades, primarily because they can be produced to multiple targets, recognizing native wildtype proteins, denatured proteins, and newly generated epitopes...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28629590/bulky-dna-adducts-tobacco-smoking-genetic-susceptibility-and-lung-cancer-risk
#11
Armelle Munnia, Roger W Giese, Simone Polvani, Andrea Galli, Filippo Cellai, Marco E M Peluso
The generation of bulky DNA adducts consists of conjugates formed between large reactive electrophiles and DNA-binding sites. The term "bulky DNA adducts" comes from early experiments that employed a (32)P-DNA postlabeling approach. This technique has long been used to elucidate the association between adducts and carcinogen exposure in tobacco smoke studies and assess the predictive value of adducts in cancer risk. Molecular data showed increased DNA adducts in respiratory tracts of smokers vs nonsmokers. Experimental studies and meta-analysis demonstrated that the relationship between adducts and carcinogens was linear at low doses, but reached steady state at high exposure, possibly due to metabolic and DNA repair pathway saturation and increased apoptosis...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28629589/physical-exercise-and-dna-injury-good-or-evil
#12
Elisa Danese, Giuseppe Lippi, Fabian Sanchis-Gomar, Giorgio Brocco, Manfredi Rizzo, Maciej Banach, Martina Montagnana
Regular, low-intensity physical activity is currently advocated for lowering the risk of developing many acute and especially chronic diseases. However, several lines of evidence attest that strenuous exercise may enhance inflammation and trigger the generation of free radical-mediated damage, thus overwhelming the undisputable benefits of regular, medium-intensity physical activity. Since reactive oxygen species are actively generated during high-intensity exercise, and these reactive compounds are known to impact DNA stability, we review here the current evidence about strenuous exercise and DNA injury...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28629588/human-papillomavirus-and-its-testing-assays-cervical-cancer-screening-and-vaccination
#13
Yusheng Zhu, Yun Wang, Julie Hirschhorn, Kerry J Welsh, Zhen Zhao, Michelle R Davis, Sarah Feldman
Human papillomavirus (HPV) was found to be the causative agent for cervical cancer in the 1980s with almost 100% of cervical cancer cases testing positive for HPV. Since then, many studies have been conducted to elucidate the molecular basis of HPV, the mechanisms of carcinogenesis of the virus, and the risk factors for HPV infection. Traditionally, the Papanicolaou test was the primary screening method for cervical cancer. Because of the discovery and evolving understanding of the role of HPV in cervical dysplasia, HPV testing has been recommended as a new method for cervical cancer screening by major professional organizations including the American Cancer Society, American Society for Colposcopy and Cervical Pathology, and the American Society for Clinical Pathology...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28629587/microparticles-in-chronic-heart-failure
#14
Alexander E Berezin
Heart failure (HF) continues to have a sufficient impact on morbidity, mortality, and disability in developed countries. Growing evidence supports the hypothesis that microparticles (MPs) might contribute to the pathogenesis of the HF development playing a pivotal role in the regulation of the endogenous repair system, thrombosis, coagulation, inflammation, immunity, and metabolic memory phenomenon. Therefore, there is a large body of data clarifying the predictive value of MP numerous in circulation among subjects with HF...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28431644/preface
#15
EDITORIAL
Gregory S Makowski
No abstract text is available yet for this article.
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28431643/advances-in-circulating-tumor-dna-analysis
#16
Samantha Perakis, Martina Auer, Jelena Belic, Ellen Heitzer
The analysis of cell-free circulating tumor DNA (ctDNA) is a very promising tool and might revolutionize cancer care with respect to early detection, identification of minimal residual disease, assessment of treatment response, and monitoring tumor evolution. ctDNA analysis, often referred to as "liquid biopsy" offers what tissue biopsies cannot-a continuous monitoring of tumor-specific changes during the entire course of the disease. Owing to technological improvements, efforts for the establishment of preanalytical and analytical benchmark, and the inclusion of ctDNA analyses in clinical trial, an actual clinical implementation has come within easy reach...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28431642/pcr-based-detection-methods-for-single-nucleotide-polymorphism-or-mutation-real-time-pcr-and-its-substantial-contribution-toward-technological-refinement
#17
REVIEW
Kazuyuki Matsuda
Single-nucleotide polymorphisms (SNPs) and single-nucleotide mutations result from the substitution of only a single base. The SNP or mutation can be relevant to disease susceptibility, pathogenesis of disease, and efficacy of specific drugs. It is important to detect SNPs or mutations clinically. Methods to distinguish/detect SNPs or mutations should be highly specific and sensitive. In this regard, polymerase chain reaction (PCR) has provided the necessary analytical performance for many molecular analyses...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28431641/infections-a-possible-risk-factor-for-type-2-diabetes
#18
REVIEW
Surajit Chakraborty, Rajasri Bhattacharyya, Dibyajyoti Banerjee
Diabetes mellitus is one of the biggest challenges to human health globally, with an estimated 95% of the global diabetic population having type 2 diabetes. Classical causes for type 2 diabetes, such as genetics and obesity, do not account for the high incidence of the disease. Recent data suggest that infections may precipitate insulin resistance via multiple mechanisms, such as the proinflammatory cytokine response, the acute-phase response, and the alteration of the nutrient status. Even pathogen products, such as lipopolysaccharide and peptidoglycans, can be diabetogenic...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28431640/rapid-assessment-of-drugs-of-abuse
#19
Joesph R Wiencek, Jennifer M Colby, James H Nichols
Laboratory testing for drugs of abuse has become standard practice in many settings both forensic and clinical. Urine is the predominant specimen, but other specimens are possible including hair, nails, sweat, and oral fluid. Point-of-care test kits provide for rapid analysis at the site where specimens are collected allowing for immediate action on the results. POCT is based on immunochromatography where the drug in the patient's sample competes with drug and antibody conjugates in the test to develop or block the development of a colored line...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28431639/advances-in-molecular-diagnosis-of-malaria
#20
REVIEW
Zhi Zheng, Zhibin Cheng
Malaria is a mosquito-borne disease caused by five species of Plasmodium parasites. Accurate diagnosis of malaria plays an essential part in malaria control. With traditional diagnostic methodologies, malaria control programs have achieved remarkable success during the past decade, and are now heading toward malaria elimination in many areas. This new situation, however, calls for novel diagnostics with improved sensitivity, throughput, and reduced cost for active screening of malaria parasites, as all transfected individuals have to be identified in order to block transmission...
2017: Advances in Clinical Chemistry
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