C. Gendron, T. Chakraborty, Brian Y. Chung, Zachary M. Harvanek, Kristina J Holme, Jacob C Johnson, Y. Lyu, Allyson S. Munneke, S. Pletcher
{"title":"Neuronal Mechanisms that Drive Organismal Aging Through the Lens of Perception.","authors":"C. Gendron, T. Chakraborty, Brian Y. Chung, Zachary M. Harvanek, Kristina J Holme, Jacob C Johnson, Y. Lyu, Allyson S. Munneke, S. Pletcher","doi":"10.1146/annurev-physiol-021119-034440","DOIUrl":"https://doi.org/10.1146/annurev-physiol-021119-034440","url":null,"abstract":"Sensory neurons provide organisms with data about the world in which they live, for the purpose of successfully exploiting their environment. The consequences of sensory perception are not simply limited to decision-making behaviors; evidence suggests that sensory perception directly influences physiology and aging, a phenomenon that has been observed in animals across taxa. Therefore, understanding the neural mechanisms by which sensory input influences aging may uncover novel therapeutic targets for aging-related physiologies. In this review, we examine different perceptive experiences that have been most clearly linked to aging or age-related disease: food perception, social perception, time perception, and threat perception. For each, the sensory cues, receptors, and/or pathways that influence aging as well as the individual or groups of neurons involved, if known, are discussed. We conclude with general thoughts about the potential impact of this line of research on human health and aging. Expected final online publication date for the Annual Review of Physiology, Volume 82 is February 10, 2020. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.","PeriodicalId":8196,"journal":{"name":"Annual review of physiology","volume":" ","pages":""},"PeriodicalIF":18.2,"publicationDate":"2020-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1146/annurev-physiol-021119-034440","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46071068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Physiology of the Carotid Body: From Molecules to Disease.","authors":"P. Ortega-Sáenz, J. López-Barneo","doi":"10.1146/annurev-physiol-020518-114427","DOIUrl":"https://doi.org/10.1146/annurev-physiol-020518-114427","url":null,"abstract":"The carotid body (CB) is an arterial chemoreceptor organ located in the carotid bifurcation and has a well-recognized role in cardiorespiratory regulation. The CB contains neurosecretory sensory cells (glomus cells), which release transmitters in response to hypoxia, hypercapnia, and acidemia to activate afferent sensory fibers terminating in the respiratory and autonomic brainstem centers. Knowledge of the physiology of the CB has progressed enormously in recent years. Herein we review advances concerning the organization and function of the cellular elements of the CB, with emphasis on the molecular mechanisms of acute oxygen sensing by glomus cells. We introduce the modern view of the CB as a multimodal integrated metabolic sensor and describe the properties of the CB stem cell niche, which support CB growth during acclimatization to chronic hypoxia. Finally, we discuss the increasing medical relevance of CB dysfunction and its potential impact on the mechanisms of disease. Expected final online publication date for the Annual Review of Physiology, Volume 82 is February 10, 2020. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.","PeriodicalId":8196,"journal":{"name":"Annual review of physiology","volume":" ","pages":""},"PeriodicalIF":18.2,"publicationDate":"2020-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1146/annurev-physiol-020518-114427","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49561479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Intestinal Stem Cell Aging: Origins and Interventions.","authors":"H. Jasper","doi":"10.1146/annurev-physiol-021119-034359","DOIUrl":"https://doi.org/10.1146/annurev-physiol-021119-034359","url":null,"abstract":"Regenerative processes that maintain the function of the gastrointestinal (GI) epithelium are critical for health and survival of multicellular organisms. In insects and vertebrates, intestinal stem cells (ISCs) regenerate the GI epithelium. ISC function is regulated by intrinsic, local, and systemic stimuli to adjust regeneration to tissue demands. These control mechanisms decline with age, resulting in significant perturbation of intestinal homeostasis. Processes that lead to this decline have been explored intensively in Drosophila melanogaster in recent years and are now starting to be characterized in mammalian models. This review presents a model for age-related regenerative decline in the fly intestine and discusses recent findings that start to establish molecular mechanisms of age-related decline of mammalian ISC function. Expected final online publication date for the Annual Review of Physiology, Volume 82 is February 10, 2020. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.","PeriodicalId":8196,"journal":{"name":"Annual review of physiology","volume":" ","pages":""},"PeriodicalIF":18.2,"publicationDate":"2020-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1146/annurev-physiol-021119-034359","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48955940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Contributions of Aging to Cerebral Small Vessel Disease.","authors":"T. M. De Silva, F. Faraci","doi":"10.1146/annurev-physiol-021119-034338","DOIUrl":"https://doi.org/10.1146/annurev-physiol-021119-034338","url":null,"abstract":"Cerebral small vessel disease (SVD) is characterized by changes in the pial and parenchymal microcirculations. SVD produces reductions in cerebral blood flow and impaired blood-brain barrier function, which are leading contributors to age-related reductions in brain health. End-organ effects are diverse, resulting in both cognitive and noncognitive deficits. Underlying phenotypes and mechanisms are multifactorial, with no specific treatments at this time. Despite consequences that are already considerable, the impact of SVD is predicted to increase substantially with the growing aging population. In the face of this health challenge, the basic biology, pathogenesis, and determinants of SVD are poorly defined. This review summarizes recent progress and concepts in this area, highlighting key findings and some major unanswered questions. We focus on phenotypes and mechanisms that underlie microvascular aging, the greatest risk factor for cerebrovascular disease and its subsequent effects. Expected final online publication date for the Annual Review of Physiology, Volume 82 is February 10, 2020. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.","PeriodicalId":8196,"journal":{"name":"Annual review of physiology","volume":"1 1","pages":""},"PeriodicalIF":18.2,"publicationDate":"2020-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1146/annurev-physiol-021119-034338","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42219324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Osteoclasts Provide Coupling Signals to Osteoblast Lineage Cells Through Multiple Mechanisms.","authors":"N. Sims, T. Martin","doi":"10.1146/annurev-physiol-021119-034425","DOIUrl":"https://doi.org/10.1146/annurev-physiol-021119-034425","url":null,"abstract":"Bone remodeling is essential for the repair and replacement of damaged and old bone. The major principle underlying this process is that osteoclast-mediated resorption of a quantum of bone is followed by osteoblast precursor recruitment; these cells differentiate to matrix-producing osteoblasts, which form new bone to replace what was resorbed. Evidence from osteopetrotic syndromes indicate that osteoclasts not only resorb bone, but also provide signals to promote bone formation. Osteoclasts act upon osteoblast lineage cells throughout their differentiation by facilitating growth factor release from resorbed matrix, producing secreted proteins and microvesicles, and expressing membrane-bound factors. These multiple mechanisms mediate the coupling of bone formation to resorption in remodeling. Additional interactions of osteoclasts with osteoblast lineage cells, including interactions with canopy and reversal cells, are required to achieve coordination between bone formation and resorption during bone remodeling. Expected final online publication date for the Annual Review of Physiology, Volume 82 is February 10, 2020. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.","PeriodicalId":8196,"journal":{"name":"Annual review of physiology","volume":" ","pages":""},"PeriodicalIF":18.2,"publicationDate":"2020-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1146/annurev-physiol-021119-034425","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43634836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cardiomyocyte Polyploidy and Implications for Heart Regeneration.","authors":"Peiheng Gan, Michaela Patterson, H. Sucov","doi":"10.1146/annurev-physiol-021119-034618","DOIUrl":"https://doi.org/10.1146/annurev-physiol-021119-034618","url":null,"abstract":"In mammals, most cardiomyocytes (CMs) become polyploid (they have more than two complete sets of chromosomes). The purpose of this review is to evaluate assumptions about CM ploidy that are commonly discussed, even if not experimentally demonstrated, and to highlight key issues that are still to be resolved. Topics discussed here include (a) technical and conceptual difficulties in defining a polyploid CM, (b) the candidate role of reactive oxygen as a proximal trigger for the onset of polyploidy, (c) the relationship between polyploidization and other aspects of CM maturation, (d ) recent insights related to the regenerative role of the subpopulation of CMs that are not polyploid, and (e) speculations as to why CMs become polyploid at all. New approaches to experimentally manipulate CM ploidy may resolve some of these long-standing and fundamental questions. Expected final online publication date for the Annual Review of Physiology, Volume 82 is February 10, 2020. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.","PeriodicalId":8196,"journal":{"name":"Annual review of physiology","volume":" ","pages":""},"PeriodicalIF":18.2,"publicationDate":"2020-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1146/annurev-physiol-021119-034618","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45132823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"BMP Signaling in Development, Stem Cells, and Diseases of the Gastrointestinal Tract.","authors":"Yongchun Zhang, Jianwen Que","doi":"10.1146/annurev-physiol-021119-034500","DOIUrl":"https://doi.org/10.1146/annurev-physiol-021119-034500","url":null,"abstract":"<p><p>The bone morphogenetic protein (BMP) pathway is essential for the morphogenesis of multiple organs in the digestive system. Abnormal BMP signaling has also been associated with disease initiation and progression in the gastrointestinal (GI) tract and associated organs. Recent studies using animal models, tissue organoids, and human pluripotent stem cells have significantly expanded our understanding of the roles played by BMPs in the development and homeostasis of GI organs. It is clear that BMP signaling regulates GI function and disease progression that involve stem/progenitor cells and inflammation in a tissue-specific manner. In this review we discuss these new findings with a focus on the esophagus, stomach, and intestine.</p>","PeriodicalId":8196,"journal":{"name":"Annual review of physiology","volume":"82 ","pages":"251-273"},"PeriodicalIF":18.2,"publicationDate":"2020-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1146/annurev-physiol-021119-034500","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9554808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Regulation and Effects of FGF23 in Chronic Kidney Disease.","authors":"J. Musgrove, M. Wolf","doi":"10.1146/annurev-physiol-021119-034650","DOIUrl":"https://doi.org/10.1146/annurev-physiol-021119-034650","url":null,"abstract":"Chronic kidney disease (CKD) is a global health epidemic that accelerates cardiovascular disease, increases risk of infection, and causes anemia and bone disease, among other complications that collectively increase risk of premature death. Alterations in calcium and phosphate homeostasis have long been considered nontraditional risk factors for many of the most morbid outcomes of CKD. The discovery of fibroblast growth factor 23 (FGF23), which revolutionized the diagnosis and treatment of rare hereditary disorders of FGF23 excess that cause hypophosphatemic rickets, has also driven major paradigm shifts in our understanding of the pathophysiology and downstream end-organ complications of disordered mineral metabolism in CKD. As research of FGF23 in CKD has rapidly advanced, major new questions about its regulation and effects continuously emerge. These are promoting exciting innovations in laboratory, patient-oriented, and epidemiological research and stimulating clinical trials of new therapies and repurposing of existing ones to target FGF23. Expected final online publication date for the Annual Review of Physiology, Volume 82 is February 10, 2020. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.","PeriodicalId":8196,"journal":{"name":"Annual review of physiology","volume":" ","pages":""},"PeriodicalIF":18.2,"publicationDate":"2019-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1146/annurev-physiol-021119-034650","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43250679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Gestational Exposure to Common Endocrine Disrupting Chemicals and Their Impact on Neurodevelopment and Behavior.","authors":"Dinushan Nesan, D. Kurrasch","doi":"10.1146/annurev-physiol-021119-034555","DOIUrl":"https://doi.org/10.1146/annurev-physiol-021119-034555","url":null,"abstract":"Endocrine disrupting chemicals are common in our environment and act on hormone systems and signaling pathways to alter physiological homeostasis. Gestational exposure can disrupt developmental programs, permanently altering tissues with impacts lasting into adulthood. The brain is a critical target for developmental endocrine disruption, resulting in altered neuroendocrine control of hormonal signaling, altered neurotransmitter control of nervous system function, and fundamental changes in behaviors such as learning, memory, and social interactions. Human cohort studies reveal correlations between maternal/fetal exposure to endocrine disruptors and incidence of neurodevelopmental disorders. Here, we summarize the major literature findings of endocrine disruption of neurodevelopment and concomitant changes in behavior by four major endocrine disruptor classes: bisphenol A, polychlorinated biphenyls, organophosphates, and polybrominated diphenyl ethers. We specifically review studies of gestational and/or lactational exposure to understand the effects of early life exposure to these compounds and summarize animal studies that help explain human correlative data. Expected final online publication date for the Annual Review of Physiology, Volume 82 is February 10, 2020. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.","PeriodicalId":8196,"journal":{"name":"Annual review of physiology","volume":" ","pages":""},"PeriodicalIF":18.2,"publicationDate":"2019-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1146/annurev-physiol-021119-034555","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49420539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Genetics of COPD.","authors":"E. Silverman","doi":"10.1146/ANNUREV-PHYSIOL-021317-121224","DOIUrl":"https://doi.org/10.1146/ANNUREV-PHYSIOL-021317-121224","url":null,"abstract":"Although chronic obstructive pulmonary disease (COPD) risk is strongly influenced by cigarette smoking, genetic factors are also important determinants of COPD. In addition to Mendelian syndromes such as alpha-1 antitrypsin deficiency, many genomic regions that influence COPD susceptibility have been identified in genome-wide association studies. Similarly, multiple genomic regions associated with COPD-related phenotypes, such as quantitative emphysema measures, have been found. Identifying the functional variants and key genes within these association regions remains a major challenge. However, newly identified COPD susceptibility genes are already providing novel insights into COPD pathogenesis. Network-based approaches that leverage these genetic discoveries have the potential to assist in decoding the complex genetic architecture of COPD. Expected final online publication date for the Annual Review of Physiology, Volume 82 is February 10, 2020. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.","PeriodicalId":8196,"journal":{"name":"Annual review of physiology","volume":" ","pages":""},"PeriodicalIF":18.2,"publicationDate":"2019-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1146/ANNUREV-PHYSIOL-021317-121224","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48287890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}