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ACTH Action in the Adrenal Cortex: From Molecular Biology to Pathophysiology

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889452323 Year: Pages: 421 DOI: 10.3389/978-2-88945-232-3 Language: English
Publisher: Frontiers Media SA
Subject: Internal medicine --- Medicine (General)
Added to DOAB on : 2017-10-13 14:57:01
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By stimulating adrenal gland and corticosteroid synthesis, the adrenocorticotropic hormone (ACTH) plays a central role in response to stress. In this Research Topic, a particular attention has been given to the recent developments on adrenocortical zonation; the growth-promoting activities of ACTH; the various steps involved in acute and chronic regulation of steroid secretion by ACTH, including the effect of ACTH on circadian rhythms of glucocorticoid secretion. The Research Topic also reviews progress and challenges surrounding the properties of ACTH binding to the MC2 receptor (MC2R), including the importance of melanocortin-2 receptor accessory protein (MRAP) in MC2R expression and function, the various intracellular signaling cascades, which involve not only protein kinase A, the key mediator of ACTH action, but also phosphatases, phosphodiesterases, ion channels and the cytoskeleton. The importance of the proteins involved in the cell detoxification is also considered, in particular the effect that ACTH has on protection against reactive oxygen species generated during steroidogenesis. The impact of the cellular microenvironment, including local production of ACTH is discussed, both as an important factor in the maintenance of homeostasis, but also in pathological situations, such as severe inflammation. Finally, the Research Topic reviews the role that the pituitary-adrenal axis may have in the development of metabolic disorders. In addition to mutations or alterations of expression of genes encoding components of the steroidogenesis and signaling pathways, chronic stress and sleep disturbance are both associated with hyperactivity of the adrenal gland. A resulting effect is increased glucocorticoid secretion inducing food intake and weight gain, which, in turn, leads to insulin and leptin resistance. These aspects are described in detail in this Research Topic by key investigators in the field. Many of the aspects addressed in this Research Topic still represent a stimulus for future studies, their outcome aimed at providing evidence of the central position occupied by the adrenal cortex in many metabolic functions when its homeostasis is disrupted. An in-depth investigation of the mechanisms underlying these pathways will be invaluable in developing new therapeutic tools and strategies.

Adrenal Cortex: From Physiology to Disease

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889199198 Year: Pages: 89 DOI: 10.3389/978-2-88919-919-8 Language: English
Publisher: Frontiers Media SA
Subject: Medicine (General) --- Internal medicine --- Science (General) --- Biology
Added to DOAB on : 2016-01-19 14:05:46
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The adrenal gland plays essential roles in the control of body homeostasis, stress and immune responses. The adrenal cortex represents up to 90% of the gland and is specialised in the production of mineralocorticoids, glucocorticoids and adrenal androgens. This production is tightly coordinated and results from a unique zonal organisation. Although our knowledge of the molecular mechanisms controlling adrenal steroidogenesis is quite extensive, for decades, the mechanisms of adrenal cortex development, cellular homeostasis and renewal have remained elusive. The advent of new high-throughput technologies and sophisticated genetic approaches has brought tremendous progress in our understanding of how the adrenal cortex achieves and maintains its particular organisation. The aim of this Frontiers in Endocrinology Topic is to provide readers with a snapshot of our current knowledge on adrenal physiology and how deregulations of these processes result in adrenal diseases. This includes but is not limited to, basic research on adrenal development, cell lineage identification, progenitor cells, tissue renewal, control of differentiation and zonation and clinical research on the identification of disease-related genes.

Clinical Application of Stereotactic Body Radiotherapy (SBRT): Cranium to Prostate

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889198467 Year: Pages: 85 DOI: 10.3389/978-2-88919-846-7 Language: English
Publisher: Frontiers Media SA
Subject: Oncology --- Medicine (General)
Added to DOAB on : 2016-01-19 14:05:46
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Stereotactic radiosurgery is a relatively recent radiation technique initially developed using a frame-based system in 1949 by a Swedish neurosurgeon, Lars Leksell, for lesions not amendable to surgical resection. Radiosurgery is founded on principles of extreme radiation dose escalation, afforded by precise dose delivery with millimeter accuracy. Building upon the success of frame-based radiosurgery techniques, which were limited to cranial tumors and invasive head-frame placement, advances in radiation delivery and image-guidance have lead to the development of stereotactic body radiotherapy (SBRT). SBRT allows for frameless delivery of dose distributions akin to frame-based cranial stereotactic radiosurgery to both cranial and extra-cranial sites and has emerged as a important treatment strategy for a variety of cancers from the cranium to prostate. Herein we highlight ongoing investigations for the clinical application of SBRT for a variety of primary and recurrence cancers aimed at examining the growing clinical evidence supporting emerging roles for SBRT in the ever growing oncologic armamentarium.

Pheochromocytoma (PHEO) and Paraganglioma (PGL)

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ISBN: 9783039216543 9783039216550 Year: Pages: 380 DOI: 10.3390/books978-3-03921-655-0 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General)
Added to DOAB on : 2019-12-09 11:49:16
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This book outlines some new advances in genetics, clinical evaluation, localization, therapy (newly including immunotherapy) of pheochromocytoma and paraganglioma including their metastatic counterparts. Well-known and experienced clinicians and scientists contributed to this book to include some novel approaches to these tumors. This book will serve to various health care professionals from different subspecialties, but mainly oncologists, endocrinologists, endocrine surgeons, pediatricians, and radiologists. This book shows that the field of pheochromocytoma/paraganglioma is evolving and a significant progress has been made in last 5 years requiring that health care professionals and scientists will learns new information and implement it in their clinical practice or scientific work, respectively. This book should not be missed by anybody who is focusing on neuroendocrine tumors, their newest evaluation and treatment.

Keywords

pheochromocytoma --- paraganglioma --- adrenocortical carcinoma --- adrenal tumor --- pan-cancer analysis --- neural crest --- neuroendocrine --- paraganglioma --- head and neck --- radiotherapy --- 18F-FDOPA --- PET --- GTV --- SDHB --- SDHD --- mortality --- paraganglioma --- pheochromocytoma --- radiofrequency ablation --- cryoablation --- percutaneous ethanol injection --- neuroendocrine tumor --- minimally invasive procedure --- percutaneous ablation --- PASS --- GAPP --- histology --- meta-analysis --- paraganglioma --- pheochromocytoma --- carotid body --- angiogenesis --- mitochondria --- neural crest --- neurogenesis --- paraganglioma --- stem-like tumor cells --- vasculogenesis --- xenograft --- pheochromocytoma --- catecholamine --- global longitudinal strain --- speckle-tracking echocardiography --- subclinical systolic dysfunction --- pheochromocytoma --- paraganglioma --- neuroendocrine tumor --- targeted therapy --- therapy resistance --- FGF21 --- pheochromocytoma --- paraganglioma --- diabetes mellitus --- obesity --- energy metabolism --- calorimetry --- chromogranin A --- metanephrines --- pheochromocytoma --- paraganglioma --- hypoxia --- pseudohypoxia --- spheroids --- HIF --- EPAS1 --- catecholamine --- pheochromocytoma and paraganglioma --- phosphorylation tyrosine hydroxylase --- dog --- pheochromocytoma --- paraganglioma --- SDHB --- SDHD --- mutation --- chromosomal alteration --- comparative genomics --- pheochromocytoma --- paraganglioma --- metastatic --- immunotherapy --- innate immunity --- adaptive immunity --- toll-like receptor --- pathogen-associated molecular patterns --- neutrophil --- T cell --- pheochromocytoma --- paraganglioma --- hypertension --- blood pressure variability --- average real variability --- weighted standard deviation --- paraganglioma --- somatostatinoma --- polycythemia --- EPAS1 --- transgenic mice --- erythropoietin --- pheochromocytoma --- paraganglioma --- TCA cycle --- germline mutation --- metastatic OR malignant pheochromocytoma --- paraganglioma --- ectopic secretion --- lL-6 --- normetanephrines --- VHL --- NF1 --- EPAS1 --- hypoxia-inducible factor --- inflammation --- radiosensitization --- succinate dehydrogenase --- mouse pheochromocytoma cells --- immunohistochemistry --- fluorescence imaging --- pheochromocytoma --- paraganglioma --- next-generation sequencing --- sporadic --- hereditary --- CNV detection --- pheochromocytoma --- paraganglioma --- PET-CT --- 11C-hydroxy-ephedrine --- adrenal incidentaloma --- pheochromocytoma --- paraganglioma --- 177Lu-DOTATATE --- peptide receptor radiotherapy --- PRRT --- neuroendocrine tumor --- NET --- PCC --- PGL --- postoperative --- pheochromocytoma --- hypertension --- hypotension --- arrhythmia --- PPGL --- catecholamines --- adrenomedullary function --- n/a

Tea in Health and Disease

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ISBN: 9783038979869 9783038979876 Year: Pages: 222 DOI: 10.3390/books978-3-03897-987-6 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology --- Nutrition and Food Sciences
Added to DOAB on : 2019-06-26 08:44:06
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Tea, made from the leaves of the Camellia senenisis plant, is the second most consumed beverage worldwide after water. Accumulating evidence from cellular, animal, epidemiological and clinical studies have linked tea consumption to various health benefits, such as chemoprevention of cancers, chronic inflammation, heart and liver diseases, diabetes, neurodegenerative diseases, etc. Although such health benefits have not been consistently observed in some intervention trials, positive results from clinical trials have provided direct evidence supporting the cancer-protective effect of green tea. In addition, numerous mechanisms of action have been suggested to contribute to tea’s disease-preventive effects. Furthermore, effects of the processing and storage of tea, as well as additives on tea’s properties have been investigated.

Health Benefits of Mediterranean Diet

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ISBN: 9783039214938 9783039214945 Year: Pages: 274 DOI: 10.3390/books978-3-03921-494-5 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Social Sciences --- Sociology
Added to DOAB on : 2019-12-09 11:49:15
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Growing evidence shows that a dietary pattern inspired by Mediterranean dietprinciples is associated with numerous health benefits. A Mediterranean-typediet has been demonstrated to exert a preventive effect toward cardiovasculardiseases, in both Mediterranean and non-Mediterranean populations. Part ofthese properties may depend on a positive action toward healthier metabolism,decreasing the risk of diabetes and metabolic-syndrome-related conditions.Some studies also suggested a potential role in preventing certain cancers. Finally,newer research has showed that a higher adherence to the Mediterranean diet isassociated with a lower risk of cognitive decline, depression, and other mentaldisorders. Overall, a better understanding of the key elements of this dietarypattern, the underlying mechanisms, and targets, are needed to corroboratecurrent evidence and provide insights on new and potential outcomes.ThisSpecial Issue welcomes original research and reviews of literature concerningthe Mediterranean diet and various health outcomes:Observational studies onestablished nutritional cohorts (preferred), case-control studies, or populationsample on the association with non-communicable diseases;Level of evidenceon the association with human health, including systematic reviews and metaanalyses;Evaluation of application of Mediterranean diet principles in non-Mediterranean countries;Description of mechanisms of action, pathways, andtargets at the molecular level, including interaction with gut microbiota.

Keywords

Mediterranean diet --- dietary intervention --- diet --- nutrition --- translation --- non-alcoholic fatty liver disease --- cardiovascular disease --- Mediterranean diet --- physical activity --- self-concept --- socioeconomic factors --- Mediterranean diet --- diabetes --- cardiovascular risk --- glucose control --- plasma lipids --- relative Mediterranean diet score --- Mediterranean diet --- questionnaire --- children --- adolescents --- obesity --- Mediterranean diet --- athletes --- Spain --- dietary intake --- catechins --- resveratrol --- olive oil --- wine --- BMI --- Mediterranean diet --- barriers --- dietary change --- childbearing age --- diet quality --- depressive symptoms --- risk factors --- epidemiology --- immune system --- prevention --- hypothalamic–pituitary–adrenal-HPA axis --- Mediterranean diet --- motivational climate --- sports --- university students --- Mediterranean diet --- metabolomics --- microbiome --- Mediterranean diet --- DNA damage --- DNA repair --- telomere length --- dietary intervention study --- Mediterranean diet --- sleep quality --- cognitive decline --- dementia --- weight status --- mental health --- obesity --- cohort --- Italy --- Mediterranean diet --- quality of life --- mental health --- fruit --- vegetable --- dairy --- nuts --- fish --- whole-grain --- food groups --- Mediterranean diet --- pregnancy --- offspring --- child health --- Mediterranean diet --- Mediterranean diet pyramid --- noncommunicable diseases --- Mediterranean Diet --- public health policy --- childhood obesity --- healthy lifestyle --- health communication --- n/a

Biomedical Insights that Inform the Diagnosis of ME/CFS

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ISBN: 9783039283903 9783039283910 Year: Pages: 202 DOI: 10.3390/books978-3-03928-391-0 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Therapeutics --- Medicine (General)
Added to DOAB on : 2020-04-07 23:07:09
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Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a severe chronic health condition that is often misunderstood or ignored by health establishments. The lack of definitive diagnostic markers to separate ME/CFS patients from the healthy population as well as from other chronic disorders is problematic for both health professionals and researchers. A consortium of Australian researchers gathered to systematically understand ME/CFS, ranging from a deep analysis of clinical and pathology data to metabolomic profiles and the investigation of mitochondrial function. From this broad collaboration, a number of compelling insights have arisen that may form the basis of specific serum, blood, and/or urinary biomarkers of ME/CFS. This Special Edition reports on a conference centred on these biomedical discoveries, with other contributions, with a translation focus for predictive markers for ME/CFS diagnosis. By supporting health professionals with developments in diagnostics for this condition, the patients and their families will hopefully benefit from an improved recognition of the biomedical underpinnings of the condition and will be better able to access the care that is urgently required. This Special Edition contains a mix of speaker submissions and other accepted manuscripts that contributed to our objective of advancing biomedical insights to enable the accurate diagnosis of ME/CFS.

Keywords

myalgic encephalomyelitis --- chronic fatigue syndrome --- diagnosis --- symptoms --- muscles --- neurology --- myalgic encephalomyelitis --- chronic fatigue syndrome --- post-exertional malaise --- assessment --- patient-driven questionnaire --- participatory research --- myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) --- energy metabolism --- potential biomarkers --- fatigue syndrome --- chronic --- exercise --- hypoacetylation --- methylhistidine --- histone deacetylation --- myalgic encephalomyelitis --- chronic fatigue syndrome --- diagnostic biomarker --- inflammation and immunity --- metabolism --- mitochondria --- circadian rhythm --- neuro-inflammation --- myalgic encephalomyelitis --- chronic fatigue syndrome --- activin --- pathology --- biomarker --- cytokine --- machine learning --- reference intervals --- myalgic encephalomyelitis --- chronic fatigue syndrome --- ME/CFS --- diagnosis --- metabolism --- mitochondria --- inflammation --- immune system --- signaling --- gut microbiota --- tryptophan metabolism --- indoleamine-2,3-dioxygenase --- bistability --- kynurenine pathway --- substrate inhibition --- myalgic encephalomyelitis --- chronic fatigue syndrome --- mathematical model --- critical point --- immunological --- chronic fatigue syndrome --- myalgic encephalomyelitis --- biomarker --- neuroimmune --- Epstein Barr virus --- hypothalamic–pituitary–adrenal axis --- CFS (Chronic Fatigue Syndrome) --- ME (Myalgic Encephalomyelitis) --- medical retirement --- prognosis --- work rehabilitation --- n/a

Coffee and Caffeine Consumption for Human Health

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ISBN: 9783039286287 / 9783039286294 Year: Pages: 290 DOI: 10.3390/books978-3-03928-629-4 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology --- Nutrition and Food Sciences
Added to DOAB on : 2020-06-09 16:38:57
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The year 2019 has been prolific in terms of new evidence regarding the effects of coffee and caffeine consumption on diverse aspects of human functioning. This book collects 20 high-quality manuscripts published in Nutrients that include original investigation or systematic review studies of the effects of caffeine intake on human performance and health. The diversity of the articles published in this Special Issue highlights the extent of the effects of coffee and caffeine on human functioning, while underpinning the positive nature of most of these effects. This book will help with understanding why the natural sources of caffeine are so widely present in the nutrition behaviors of modern society.

Keywords

pharmacokinetics --- energy drink --- exercise --- elite athlete --- performance --- football --- RPE --- DOMS --- sport performance --- supplementation --- ergogenic aids --- consumer --- behavior --- perception --- coffee --- health --- consumption motives --- coffee/caffeine --- systematic review and meta-analysis --- prospective studies --- epidemiology --- cancer prevention --- colorectal cancer --- individual responses --- responders --- exercise performance --- ergogenic aids --- caffeine --- coffee --- tea --- energy drinks --- pregnancy --- newborn --- caffeine --- ergogenic aid --- resistance training --- isokinetic testing --- adrenal gland --- caffeine --- corticosterone --- puberty --- rat --- sex-difference --- caffeine --- energy drinks --- fatigue --- mood state --- exercise --- supplement --- resistance exercise --- speed --- repetition --- n/a --- metabolome --- skeletal muscle --- exercise --- muscle contraction --- ergogenic effect --- bench press --- upper limb --- resistance exercise --- ergogenic substances --- time under tension --- 1RM test --- caffeine --- metabolites --- phenotyping --- CYP450 --- NAT --- xanthine oxidase --- actigraphy --- athletic --- coffee --- ergogenic aid --- supplement --- anaerobic --- caffeine --- CMJ --- ergogenic aids --- exercise --- nutrition --- sport supplement --- Wingate --- electromyography --- efficiency --- sport --- exercise --- expectancy --- belief --- perceptions --- placebo effect --- recovery --- strength --- power --- sprint performance --- menstrual cycle --- fatigue --- placebo --- ergogenic --- EEG–EMG coherence --- n/a --- women --- resistance exercise --- exercise training --- velocity --- ergogenic aid --- muscle function --- n/a

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