Current Protocols in Pharmacology最新文献

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Assessment of Ex Vivo Transport Function in Isolated Rodent Brain Capillaries 啮齿动物离体脑毛细血管的体外转运功能评估
Current Protocols in Pharmacology Pub Date : 2017-03-17 DOI: 10.1002/cpph.21
Gary N.Y. Chan, Ronald E. Cannon
{"title":"Assessment of Ex Vivo Transport Function in Isolated Rodent Brain Capillaries","authors":"Gary N.Y. Chan,&nbsp;Ronald E. Cannon","doi":"10.1002/cpph.21","DOIUrl":"10.1002/cpph.21","url":null,"abstract":"<p>The blood-brain barrier plays an important role in neuroprotection; however, it can be a major obstacle for drug delivery to the brain. This barrier primarily resides in the brain capillaries and functions as an interface between the brain and peripheral blood circulation. Several anatomical and biochemical elements of the blood-brain barrier are essential to regulate the permeability of nutrients, ions, hormones, toxic metabolites, and xenobiotics into and out of the brain. In particular, high expression of ATP-driven efflux transporters at the blood-brain barrier is a major obstacle in the delivery of CNS pharmacotherapeutics to the brain. The complete understanding of these elements can offer insights on how to modulate barrier functions for neuroprotection against CNS drug toxicity and to enhance drug delivery to the brain. In the literature, preclinical models of the blood-brain barrier are widely utilized to predict drug pharmacokinetics and pharmacodynamics properties in the brain. In addition, these models are essential tools to investigate cellular mechanisms and novel interventions that alter barrier function and permeability. This unit presents procedures to isolate fresh and viable rodent brain capillaries for the assessment of ex vivo transport activity at the blood-brain barrier. © 2017 by John Wiley &amp; Sons, Inc.</p>","PeriodicalId":10871,"journal":{"name":"Current Protocols in Pharmacology","volume":"76 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/cpph.21","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34821894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Logical Experimental Design and Execution in the Biomedical Sciences 生物医学科学中的逻辑实验设计与执行
Current Protocols in Pharmacology Pub Date : 2017-03-17 DOI: 10.1002/cpph.20
Daniel J. Holder, Michael J. Marino
{"title":"Logical Experimental Design and Execution in the Biomedical Sciences","authors":"Daniel J. Holder,&nbsp;Michael J. Marino","doi":"10.1002/cpph.20","DOIUrl":"10.1002/cpph.20","url":null,"abstract":"<p>Lack of reproducibility has been highlighted as a significant problem in biomedical research. The present unit is devoted to describing ways to help ensure that research findings can be replicated by others, with a focus on the design and execution of laboratory experiments. Essential components for this include clearly defining the question being asked, using available information or information from pilot studies to aid in the design the experiment, and choosing manipulations under a logical framework based on Mill's “methods of knowing” to build confidence in putative causal links. Final experimental design requires systematic attention to detail, including the choice of controls, sample selection, blinding to avoid bias, and the use of power analysis to determine the sample size. Execution of the experiment is done with care to ensure that the independent variables are controlled and the measurements of the dependent variables are accurate. While there are always differences among laboratories with respect to technical expertise, equipment, and suppliers, execution of the steps itemized in this unit will ensure well-designed and well-executed experiments to answer any question in biomedical research. © 2017 by John Wiley &amp; Sons, Inc.</p>","PeriodicalId":10871,"journal":{"name":"Current Protocols in Pharmacology","volume":"76 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/cpph.20","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34821895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Biomarkers—A General Review 生物标志物综述
Current Protocols in Pharmacology Pub Date : 2017-03-17 DOI: 10.1002/cpph.19
Jeffrey K. Aronson, Robin E. Ferner
{"title":"Biomarkers—A General Review","authors":"Jeffrey K. Aronson,&nbsp;Robin E. Ferner","doi":"10.1002/cpph.19","DOIUrl":"10.1002/cpph.19","url":null,"abstract":"<p>A biomarker is a biological observation that substitutes for and ideally predicts a clinically relevant endpoint or intermediate outcome that is more difficult to observe. The use of clinical biomarkers is easier and less expensive than direct measurement of the final clinical endpoint, and biomarkers are usually measured over a shorter time span. They can be used in disease screening, diagnosis, characterization, and monitoring; as prognostic indicators; for developing individualized therapeutic interventions; for predicting and treating adverse drug reactions; for identifying cell types; and for pharmacodynamic and dose-response studies. To understand the value of a biomarker, it is necessary to know the pathophysiological relationship between the biomarker and the relevant clinical endpoint. Good biomarkers should be measurable with little or no variability, should have a sizeable signal to noise ratio, and should change promptly and reliably in response to changes in the condition or its therapy. © 2017 by John Wiley &amp; Sons, Inc.</p>","PeriodicalId":10871,"journal":{"name":"Current Protocols in Pharmacology","volume":"76 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/cpph.19","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34822531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 173
The Quantitative Characterization of Functional Allosteric Effects 功能性变构效应的定量表征
Current Protocols in Pharmacology Pub Date : 2017-03-17 DOI: 10.1002/cpph.18
Terry Kenakin
{"title":"The Quantitative Characterization of Functional Allosteric Effects","authors":"Terry Kenakin","doi":"10.1002/cpph.18","DOIUrl":"10.1002/cpph.18","url":null,"abstract":"<p>Seven-transmembrane receptors (7TMRs or GPCRs [G protein–coupled receptors]) are nature's prototypic allosteric proteins in that they mediate the interaction between ligand binding to the receptor and the receptor interacting with another cell signaling protein. A growing class of potential drugs acting through 7TMRs are allosteric in nature in that they bind to a separate site on the receptor protein to modify the interactions between the receptor, natural binding/orthosteric ligand, and signaling proteins. Two main allosteric compound categories are those that increase (positive allosteric modulators [PAMs]) and those that decrease (negative allosteric modulators [NAMs]) receptor-mediated responses. Described in this overview are the molecular parameters used to measure and quantify the interaction of PAMs and NAMs with GPCRs. © 2017 by John Wiley &amp; Sons, Inc.</p>","PeriodicalId":10871,"journal":{"name":"Current Protocols in Pharmacology","volume":"76 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/cpph.18","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"34822532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Detection of Receptor Heteromerization Using In Situ Proximity Ligation Assay. 利用原位近接测定法检测受体异构化。
Current Protocols in Pharmacology Pub Date : 2016-12-13 DOI: 10.1002/cpph.15
Ivone Gomes, Salvador Sierra, Lakshmi A Devi
{"title":"Detection of Receptor Heteromerization Using In Situ Proximity Ligation Assay.","authors":"Ivone Gomes, Salvador Sierra, Lakshmi A Devi","doi":"10.1002/cpph.15","DOIUrl":"10.1002/cpph.15","url":null,"abstract":"<p><p>Although G protein-coupled receptor (GPCR) heteromerization has been extensively demonstrated in vitro using heterologous cells that overexpress epitope-tagged receptors, their presence in endogenous systems is less well established. This is because a criterion to identify receptor heteromerization is the demonstration that the two interacting receptors are present not only in the same cell but also in the same subcellular compartment in close enough proximity to allow for direct receptor-receptor interaction. This has been difficult to study in native tissues due to a lack of sensitive and selective tools not only capable of detecting low-abundance proteins but also of demonstrating that they are in sufficiently close proximity to interact. The latter can be achieved using a proximity ligation assay (PLA). Detailed in this unit are protocols for demonstrating the presence of GPCR heteromers in endogenous cells as well as animal and human tissues, the controls required for these assays, and troubleshooting tips. © 2016 by John Wiley & Sons, Inc.</p>","PeriodicalId":10871,"journal":{"name":"Current Protocols in Pharmacology","volume":"75 1","pages":"2.16.1-2.16.31"},"PeriodicalIF":0.0,"publicationDate":"2016-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5758307/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50904503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Functional Studies of Sodium Channels: From Target to Compound Identification 钠离子通道的功能研究:从靶标到化合物鉴定
Current Protocols in Pharmacology Pub Date : 2016-12-01 DOI: 10.1002/cpph.14
D. Bertrand, B. Biton, T. Licher, J. Chambard, C. Lanneau, M. Partiseti, I. Lefevre
{"title":"Functional Studies of Sodium Channels: From Target to Compound Identification","authors":"D. Bertrand, B. Biton, T. Licher, J. Chambard, C. Lanneau, M. Partiseti, I. Lefevre","doi":"10.1002/cpph.14","DOIUrl":"https://doi.org/10.1002/cpph.14","url":null,"abstract":"Over the last six decades, voltage‐gated sodium (Nav) channels have attracted a great deal of scientific and pharmaceutical interest, driving fundamental advances in both biology and technology. The structure and physiological function of these channels have been extensively studied; clinical and genetic data have uncovered their implication in diseases such as epilepsy, arrhythmias, and pain, bringing them into focus as current and future drug targets. While different techniques have been established to record the activity of Nav channels, proper determination of their properties still presents serious challenges, depending upon the experimental conditions and the desired subtype of channel to be characterized. The aim of this unit is to review the characteristics of Nav channels, their properties, the cells in which they can be studied, and the currently available techniques. Topics covered include the determination of Nav‐channel biophysical properties as well as the use of toxins to discriminate between subtypes using electrophysiological or optical methods. Perspectives on the development of high‐throughput screening assays with their advantages and limitations are also discussed to allow a better understanding of the challenges encountered in voltage‐gated sodium channel preclinical drug discovery. © 2016 by John Wiley & Sons, Inc.","PeriodicalId":10871,"journal":{"name":"Current Protocols in Pharmacology","volume":"75 1","pages":"9.21.1 - 9.21.35"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/cpph.14","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50904447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Overview on Research and Clinical Applications of Optogenetics 光遗传学研究与临床应用综述
Current Protocols in Pharmacology Pub Date : 2016-12-01 DOI: 10.1002/cpph.13
C. Towne, K. Thompson
{"title":"Overview on Research and Clinical Applications of Optogenetics","authors":"C. Towne, K. Thompson","doi":"10.1002/cpph.13","DOIUrl":"https://doi.org/10.1002/cpph.13","url":null,"abstract":"Optogenetics is a method that uses light to control cells in living tissue, typically neurons, that have been modified to express light‐sensitive ion channels and pumps. The approach facilitates neuromodulation in brain preparations and freely moving animals with unmatched spatial and temporal resolution. This optogenetics overview describes the vast array of light‐sensitive proteins available and the methods used to deliver them to tissue and modulate them with light. How these methods have so far enhanced our knowledge of fundamental neuroscience and psychiatric disease will be discussed as well as how they may contribute to drug discovery in the future. Finally, the potential rewards and risks of therapeutic gene transfer of optogenetic proteins in humans will be considered. © 2016 by John Wiley & Sons, Inc.","PeriodicalId":10871,"journal":{"name":"Current Protocols in Pharmacology","volume":"1 1","pages":"11.19.1 - 11.19.21"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/cpph.13","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50903894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 20
Stability of Drugs, Drug Candidates, and Metabolites in Blood and Plasma 血液和血浆中药物、候选药物和代谢物的稳定性
Current Protocols in Pharmacology Pub Date : 2016-12-01 DOI: 10.1002/cpph.16
G. Reed
{"title":"Stability of Drugs, Drug Candidates, and Metabolites in Blood and Plasma","authors":"G. Reed","doi":"10.1002/cpph.16","DOIUrl":"https://doi.org/10.1002/cpph.16","url":null,"abstract":"Determination of drug or drug metabolite concentrations in biological samples, particularly in serum or plasma, is fundamental to describing the relationships between administered dose, route of administration, and time after dose for achieving the optimal clinical response. While a well‐characterized, accurate analytical method is needed to define these parameters, it must also be established that the analyte concentration in the sample at the time of analysis is identical to the concentration at sample acquisition. This is necessitated by the fact that drugs and their metabolites are susceptible to degradation in samples due to metabolism or to physical and chemical processes, resulting in a lower measured concentration than was in the original sample. Careful examination of analyte stability during processing and storage and, if necessary, adjustment of procedures and conditions to maximize stability, are a critical component of method validation to ensure the accuracy of the data. The protocols provided in this unit address the stability of the analytes in whole blood and blood‐derived samples prior to sample preparation for analysis. Issues addressed include sample acquisition, processing of whole blood, and storage of blood‐derived samples. © 2016 by John Wiley & Sons, Inc.","PeriodicalId":10871,"journal":{"name":"Current Protocols in Pharmacology","volume":"75 1","pages":"7.6.1 - 7.6.12"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/cpph.16","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50904239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 21
Visualization of 5‐HT Receptors Using Radioligand‐Binding Autoradiography 利用放射配体结合放射自显影技术可视化5 - HT受体
Current Protocols in Pharmacology Pub Date : 2016-12-01 DOI: 10.1002/cpph.17
R. Cortės, M. Vilaró, G. Mengod
{"title":"Visualization of 5‐HT Receptors Using Radioligand‐Binding Autoradiography","authors":"R. Cortės, M. Vilaró, G. Mengod","doi":"10.1002/cpph.17","DOIUrl":"https://doi.org/10.1002/cpph.17","url":null,"abstract":"Described in this unit are techniques to visualize the majority of serotonin (5‐hydroxytryptamine, 5‐HT) receptor subtypes in sections of frozen brain tissue using receptor autoradiography. Protocols for brain extraction and sectioning, radioligand exposure, autoradiogram generation, and data quantification are provided, as are the optimal incubation conditions for the autoradiographic visualization of receptors using agonist and antagonist radioligands. © 2016 by John Wiley & Sons, Inc.","PeriodicalId":10871,"journal":{"name":"Current Protocols in Pharmacology","volume":"75 1","pages":"8.3.1 - 8.3.20"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/cpph.17","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50904397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A Mouse Model of Furosemide-Induced Overactive Bladder 速尿尿致膀胱过动症小鼠模型
Current Protocols in Pharmacology Pub Date : 2016-09-16 DOI: 10.1002/cpph.10
Michael S. Saporito, Eva Zuvich, Amy DiCamillo
{"title":"A Mouse Model of Furosemide-Induced Overactive Bladder","authors":"Michael S. Saporito,&nbsp;Eva Zuvich,&nbsp;Amy DiCamillo","doi":"10.1002/cpph.10","DOIUrl":"10.1002/cpph.10","url":null,"abstract":"<p>Detailed in this unit is a mouse model of overactive bladder and urinary incontinence based on diuretic stress-induced urination. The procedure involves the use of a unique, highly sensitive, and automated urine capturing method to measure urinary latency, frequency, and void volume. Although this method was first described and validated using an anti-muscarinic drug used for treating overactive bladder, subsequent work has shown that effective non-cholinergic agents can be detected. These findings indicate good predictive value for this model regarding the possible clinical utility of test agents as treatments for overactive bladder, regardless of their site of action. © 2016 by John Wiley &amp; Sons, Inc.</p>","PeriodicalId":10871,"journal":{"name":"Current Protocols in Pharmacology","volume":"74 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/cpph.10","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50903931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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