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Diagnostic, Prognostic and Predictive Biomarkers in Prostate Cancer

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ISBN: 9783038426325 9783038426332 Year: Pages: 428 DOI: 10.3390/books978-3-03842-633-2 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General)
Added to DOAB on : 2018-01-10 12:43:57
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Prostate cancer is the most common cancer in men in the Western world. Therefore, its early diagnosis in particular, which is mainly based on serum prostate-specific antigen (PSA), has gained attention in several fields of research. New biomarkers in serum and urine have been described, for example, the prostate health index (PHI) or urinary Prostate cancer gene 3 (PCA3), or others including several biomarker-based multivariate models. In addition to three studies and two reviews regarding PHI and other markers within this Special Issue “Diagnostic, Prognostic and Predictive Biomarkers in Prostate Cancer”, new immunoassays with the PCa-associated aberrant glycosylation of PSA (S2,3PSA) have been published. However, it is important to know not only the diagnosis, but also the prognosis or further prediction of this very common disease. Here, several new nucleic acid or protein-based tissue biomarkers have been described. Most studies in this Special Issue used tissue microarrays and immunohistochemistry. As already described for other types of cancer, individualized medicine, such as theranostics, a combination of diagnostics and therapeutics, represents a new area of interest for prostate cancer. Here, a very comprehensive review presents and discusses various important and promising kinds of nanoparticles, as well as imaging and therapy options, suitable for theranostic applications.

Dietary Zn and Human Health

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ISBN: 9783038970194 9783038970200 Year: Pages: XII, 216 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Biology
Added to DOAB on : 2018-07-10 13:50:52
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• Zinc (Zn) is an essential micronutrient that contributes to the proper functioning of over 300 enzymes and multiple biochemical and structural processes in the body. Zinc functions in the regulation of an extensive variety of genes, such as those involved in nucleic acid metabolism, cell signalling, apoptosis, and plays an integral role in immune system functioning. Even a mild Zn deficiency can profoundly affect growth and development, as well as impede immune differentiation and maturation. Zinc is widely distributed in foods, however, it was demonstrated that dietary constituents, such as phytate, polyphenols, and the intestinal microbiome, affect its dietary bioavailability and intestinal absorption. Regulation of zinc metabolism is achieved through a balance of absorption and excretion and involves adaptive mechanisms. The aim of this Special Issue is to explore dietary approaches that aim to improve Zn bioavailability and absorption, biomarkers of status, and the effect of Zn status on the intestinal microbiome.

Nutrition and prevention of Alzheimer's disease

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889197194 Year: Pages: 76 DOI: 10.3389/978-2-88919-719-4 Language: English
Publisher: Frontiers Media SA
Subject: Neurology --- Science (General)
Added to DOAB on : 2016-04-07 11:22:02
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Altered metabolism is known to be associated with a higher incidence of Alzheimer´s disease (AD). Diabetes type 2, obesity, and metabolic syndrome are considered risk factors for the development of dementias, including AD. These metabolic diseases may have a genetic predisposition, but most of them are caused by environmental factors and life-style. Most research has focused on the effect of a high-fat diet (HFD) and sweetened beverages that induce obesity. Importantly, a HFD can also trigger oxidative stress, neuro-inflammation and cognitive decline. Less is known, however, about beneficial effects of diet on cognition, such as slowing the progression or preventing AD by ingesting whole fruits, vegetables, fish and oil. It is important to highlight the difference between vitamin/mineral supplements and whole food, as it appears that the former are clinically ineffective, while multiple ingredients in the latter act synergistically to improve cognition. As AD is a disease of slow progression, therapies should start several decades before clinical symptoms can be observed; one strategy can be the ingestion of healthy food in those subjects with one or more risk factors (genetic, environmental, life-style) already in their 40s, just when some brain metabolic disturbances start to develop. This dietary therapy can overcome the increased reactive oxygen species, protein deposition and synaptic failure, characteristic of AD. This research topic will cover a range of research articles, case studies, opinion and mini-reviews, all focused on describing the damaging effects of an industrial diet on cognition as well as on highlighting the beneficial effects of a healthy diet to prevent AD. We believe that we still have time to fight against the negative impact of our industrialized cultures, and adopt better eating habits, increase exercise and slow down our life style to prevent increasing dementia in the aging population. Also, all these topics has been a product of intensives investigations, with a great life hope, and we hope you all enjoy reading this e-book.

Keywords

Cognition --- Diet --- Vitamins --- Minerals --- Functional Food --- Dementia --- Aging --- biomarkers --- diagnosis

Cognitive Event-Related Potentials in Psychopathology: New Experimental and Clinical Perspectives

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889450688 Year: Pages: 112 DOI: 10.3389/978-2-88945-068-8 Language: English
Publisher: Frontiers Media SA
Subject: Psychology --- Science (General)
Added to DOAB on : 2017-07-06 13:27:36
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A common feature of many psychopathological states (going from anxiety, depression to schizophrenia or addictions) is to show cognitive alterations. These cognitive deficits clearly impact on the onset of clinical symptoms. Therefore, recent studies showed that increasing cognitive skills have a positive effect on patients' quality of life, and decrease the severity of clinical symptoms. However, a main problem consists in the fact that some minor cognitive restrictions, even if not observable at the behavioral level, may induce a state of "vulnerability" that can, in some circumstances, lead the patients to relapse. For instance, in alcohol dependence, it is well-known that, despite detoxification cure, psychological intervention and medication, 50 to 90% of patients resume in alcohol consumption within 1 year post-detoxification cure. In this view, it could be really important to find biological markers for even minor cognitive alterations, that can help clinicians to identify which patients are more "at-risk" to relapse, in order to improve treatment through best suited medication and specialized programs of cognitive rehabilitation. In this topic, our aim is to illustrate how and why cognitive event-related potentials (ERPs) may help in different psychopathological populations to adapt the treatment of individual patients on the basis of their specific neuro-cognitive alterations.

Biomarkers in Drug Hypersensitivity

Authors: --- --- --- --- et al.
Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889452262 Year: Pages: 104 DOI: 10.3389/978-2-88945-226-2 Language: English
Publisher: Frontiers Media SA
Subject: Therapeutics --- Science (General)
Added to DOAB on : 2017-10-13 14:57:01
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Biomarkers, especially those based on pharmacogenomics testing, have proved to be extremely useful for type A adverse drug reactions. Clinical practice guidelines based on biomarker testing are presently being developed and updated for type A adverse drug reactions. In contrast, little attention has been paid to the potential use of biomarkers in type B adverse reactions, characterized by the occurrence of reactions not directly related to the pharmacological properties of the drug. Drug-induced hypersensitivity belongs to those type B reactions. Drug-induced hypersensitivity reactions involve complex mechanisms that include, among others, the metabolic activation and haptenization of drug metabolites. Hence, factors that influence the pharmacokinetics of drug and metabolites may contribute to the development of some drug-induced hypersensitivity reactions. This implies that processes such as ADME (absorption, distribution, metabolism and excretion) that are typically involved in type A adverse drug reactions, may have a role in hypersensitivity reactions too. In addition to metabolic activation, several signal transduction pathways participate and modulate the development and the clinical presentation of drug hypersensitivity. The diverse mechanisms underlying such drug-hypersensitivity reactions lead to four major groups of reactions according to the Gell and Coombs classification: immediate, cytotoxic, immune complex and delayed. The enormous complexity of drug-hypersensitivity reactions is a consequence of the variety of mechanisms involved, which may be related, among others, to drug metabolism, generation of antigenic signals, stimulation and maturation of dendritic cells, presentation of haptens and mechanisms of cytotoxicity. In addition, a plethora of possible clinical presentations exists, including urticaria, angioedema, anaphylaxis, cytopenias, nephritis, serum sickness, vasculitis, contact dermatitis, drug rash, eosinophilia and systemic symptoms, Stevens–Johnson syndrome, toxic epidermal necrolysis and acute generalized exanthematous pustulosis. The rapid progress in the field in recent years indicates that the combination of several disciplines is essential to understand the mechanisms involved in this particular, and not completely understood, type of adverse drug reactions. The objective of this Research Topic is to present insights obtained from both basic and clinical scientists, which may include studies related to the identification, validation, refinement and clinical implementation of biomarkers for drug-induced hypersensitivity. The Topic aims to include recent findings related, but not limited to, potential phenomic, genomic, proteomic, metabolomic and signal transduction biomarkers. These biomarkers could eventually be used in clinical practice and/or these might contribute, as a proof of concept, to our understanding of the complex events leading to drug hypersensitivity reactions. In addition the Topic will cover recent developments and methodological advances in the diagnosis, prevention and therapeutic management of drug-induced hypersensitivity.

Biomarkers of Alzheimer's Disease: The Present and the Future

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889450411 Year: Pages: 218 DOI: 10.3389/978-2-88945-041-1 Language: English
Publisher: Frontiers Media SA
Subject: Science (General) --- Neurology
Added to DOAB on : 2018-02-27 16:16:44
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Alzheimer disease (AD) is a neurodegenerative disorder characterized by significant cognitive deficits, behavioral changes, sleep disorders and loss of functional autonomy. AD represents the main cause of dementia and has become a major public health issue. In addition, the number of patients suffering from AD is growing rapidly as the population ages worldwide. Memory impairment is usually the earliest clinical and core symptom of this disease. The diagnosis at a late clinical stage is relatively easy. However, a delay in the diagnosis is damageable for the handling of patients in terms of optimal medical and social care. The actual interest of the scientific head-ways is to optimize the diagnosis in prodromal stage of the disease and to propose personalized therapeutic solutions to individual patients. New revised AD diagnostic criteria include early alteration of cerebrospinal fluid (CSF) biomarkers: decrease of amyloïd peptides (Aß42), and increase in tau and phosphorylated-tau (p-tau) protein concentration. This recognition of CSF biological biomarkers for the diagnosis of AD is a major step towards the “molecular” diagnosis and follow-up of the disease. Many issues are however still subject of debate. This e-book provides a comprehensive overview of the state of the art of fluid biomarkers for AD, e.g. which novel biomarkers should be implemented in clinical practice for diagnosis or for monitoring treatment or side effects, which ones are new for AD or related dementias or what is the potential of peripheral blood markers. Moreover, the e-Book provides practical guidelines how to optimally and efficiently develop and validate novel biomarker assays, and to document and control pre-analytical variation.

Advanced Neuroimaging Methods for Studying Autism Disorder

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889453160 Year: Pages: 141 DOI: 10.3389/978-2-88945-316-0 Language: English
Publisher: Frontiers Media SA
Subject: Science (General) --- Neurology
Added to DOAB on : 2018-02-27 16:16:45
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In the last twenty years, many attempts have been made to provide neurobiological models of autism. Functional, structural and connectivity analyses have highlighted reduced responses in key social areas, such as amygdala, medial prefrontal cortex, cingulate cortex, and superior temporal sulcus. However, these studies present discrepant results and some of them have been questioned for methodological limitations. The aim of this research topic is to present advanced neuroimaging methods able to capture the complexity of the neural deficits displayed in autism. This special issue presents new studies using structural and functional MRI, as well as magnetoencephalography, and novel protocols to analyze data (Analysis of Cluster Variability, Noise Reduction Strategies, Source-based Morphometry, Functional Connectivity Density, Restriction Spectrum Imaging and the others). We believe it is time to integrate data provided by different techniques and methodologies in order to have a better understanding of autism.

Mass Spectrometry Application in Biology

ISBN: 9783906980898 9783906980904 Year: Pages: 252 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Added to DOAB on : 2015-10-22 06:39:08
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Mass spectrometry (MS) has become a vital tool for scientist in exploring how biological systems function and how therapeutic drug intervention (both small molecules and biologics) impact these systems. The application of mass spectrometry has advanced our knowledge in the biological sciences through the study of proteins and peptides in proteomics and as biomarkers, imaging via MALDI MS, and analysis of SNP’s in the genome to allow personalized medical treatment.The aim of this book is to provide a glimpse of some of the many applications of the advancing field of mass spectrometry and its application to complex biological problems. The topics presented here touch on many of the areas listed above will hopefully serve as a catalyst to generate new ideas for the continued innovative application of mass spectrometry to the fields of medicine, biology and beyond.

Novel clinical applications of extracellular vesicles

Authors: --- ---
Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889196456 Year: Pages: 66 DOI: 10.3389/978-2-88919-645-6 Language: English
Publisher: Frontiers Media SA
Subject: Medicine (General) --- Allergy and Immunology
Added to DOAB on : 2016-08-16 10:34:25
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During the last years, the research on extracellular vesicles (EVs) has raised giving new insights into pathophysiology of several diseases. EVs are membrane-bound particles secreted by almost all cell types. Depending on their biogenesis and size they include exosomes, microparticles / microvesicles and apoptotic bodies. Characteristically, EVs carry markers from the source cell membrane and contain genetic material, lipids and proteins inside. They are known to play a role in cell-to-cell communication and to produce genotypic and phenotypic modifications in the target cell including: antigen presentation, apoptosis induction, cellular activation, inhibition or differentiation. In particular, increasing concentrations of EVs have been found in many diseases such as cancer, autoimmune and cardiovascular diseases, among others. Most of the studies in EVs are focused on the characterization of EVs compounds, identifying mechanism of action, their potential use as biomarkers, and few of them investigate a therapeutic usage. However, there are some issues to be achieved on the path to their clinical application. This research topic offers a common place to discuss current and novel clinical applications of EVs pointing on future directions. We encouraged the submission of original articles, reviews, hypothesis, controversies, future perspectives and personal viewpoints on the following topics of interest, but not limited to: • Contribution of EVs to better understand the pathology of immunological diseases. • Standardization of isolation and quantification protocols in the daily clinical practice. • Possible applications of EVs as clinical biomarkers (diagnostic, prognostic and evolution marker). • Therapeutic role of EVs being vehicles of specific cargo: current clinical trials? • Novel immunological functions of EVs.

Cardiovascular Toxicities of Breast Cancer Treatment: Emerging Issues in Cardio-Oncology

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889195695 Year: Pages: 83 DOI: 10.3389/978-2-88919-569-5 Language: English
Publisher: Frontiers Media SA
Subject: Oncology --- Medicine (General)
Added to DOAB on : 2017-02-03 17:04:57
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Cancer and cardiovascular disease (CVD) are the two most common causes of mortality and morbidity worldwide. The incidence of both cancer and cardiovascular disease increases with age. With increased life expectancy, the burden of both these diseases will increase substantially in coming years. Patients with CVD share multiple common risk factors and lifestyle behaviors in addition to frequently suffering from multiple comorbid conditions. Tobacco use, hypertension, high cholesterol, diabetes, physical inactivity, and poor nutrition are all established risk factors of heart disease. Patients with diseases such as breast cancer may develop CVD from treatment, such as use of chemotherapy and RT. Effects on the heart are a potentially significant and serious clinical problem in radiation therapy treatment of breast cancer. Over the course of the past 50 years, there have been great advances in the delivery of RT due to the development of new techniques, beam energy, improvement in imaging modalities, and development of image registration strategies. It is hypothesized that cardiac damage from RT is correlated to the dose absorbed by the heart and differs between left- and right-breast radiotherapy. The damage to cardiac micro- and macro-vasculature is the pathophysiological cause of RT-related heart disease. Given the growing clinical relevance of cardio-oncology, this Frontiers in Oncology Research Topic provides a venue for disseminating focused reviews and cutting edge research in this quickly growing field. We encourage submission of original papers and reviews dealing with cardiac toxicity after breast cancer treatment, motion management to reduce cardiac exposure, imaging to evaluate potential cardiac toxicities and primary prevention of cardiac disease in the breast cancer patient.

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