Abstract：
:The processing of proglucagon in intestinal L cells results in the formation of glucagon, GLP-1, and GLP-2. The GLP-1 molecule becomes active through the effect of proconvertase 1, and it is inactivated by dipeptidyl peptidase IV (DPP-IV), so that the half-life of endogenous GLP-1 is 2-3 min. GLP-1 stimulates insulin secretion from β cells in the islets of Langerhans. Human studies show that infusion of GLP-1 results in slowing of gastric emptying and increased fasting and postprandial gastric volumes. Retardation of gastric emptying reduces postprandial glycemia. Exendin-4 is a peptide agonist of the GLP-1 receptor that promotes insulin secretion. Chemical modifications of exendin-4 and GLP-1 molecules have been accomplished to prolong the half-life of GLP-1 agonists or analogs. This chapter reviews the effects of GLP-1-related drugs used in treatment of diabetes or obesity on gastric motor functions, chiefly gastric emptying. The literature shows that diverse methods have been used to measure effects of the GLP-1-related drugs on gastric emptying, with most studies using the acetaminophen absorption test which essentially measures gastric emptying of liquids during the first hour and capacity to absorb the drug over 4-6 h, expressed as AUC. The most valid measurements by scintigraphy (solids or liquids) and acetaminophen absorption at 30 or 60 min show that GLP-1-related drugs used in diabetes or obesity retard gastric emptying, and this is associated with reduced glycemia and variable effects on food intake and appetite. GLP-1 agonists and analogs are integral to the management of patients with type 2 diabetes mellitus and obesity. The effects on gastric emptying are reduced with long-acting preparations or long-term use of short-acting preparations as a result of tachyphylaxis. The dual agonists targeting GLP-1 and another receptor (GIP) do not retard gastric emptying, based on reports to date. In summary, GLP-1 agonists and analogs are integral to the management of patients with type 2 diabetes mellitus and obesity, and their effects are mediated, at least in part, by retardation of gastric emptying.
journal_name
Adv Exp Med Bioljournal_title
Advances in experimental medicine and biologyauthors
Maselli DB,Camilleri Mdoi
10.1007/5584_2020_496subject
Has Abstractpub_date
2021-01-01 00:00:00pages
171-192eissn
0065-2598issn
2214-8019journal_volume
1307pub_type
杂志文章,评审abstract：:In this chapter, we will review studies of HER2 in osteosarcoma and discuss the controversies that have existed in this field. Our present understanding of HER2 in the context of osteosarcoma is that it is expressed on a subset of patient samples, but that expression is not prognostic. We will review the two trials th...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-030-43032-0_5
更新日期：2020-01-01 00:00:00
abstract：:Drug addiction is a chronic relapsing disorder and a burden to society and individuals. The toxicity induced by drugs related with addiction may trigger dysfunction and death of cells of the central nervous system. The study of alterations of proteins and biomarkers in buccal cells would be beneficial in understanding...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-030-32633-3_20
更新日期：2020-01-01 00:00:00
abstract：:Telocyte, different to fibroblast and dendritic cell, is a novel type of interstitial cell, whose key features are their smaller cell body with very long prolongations of uneven caliber, termed telopodes. The telocytes have been continuously discovered to be present in many tissues and organs. Whether telocytes exist ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-981-10-1061-3_24
更新日期：2016-01-01 00:00:00
abstract：:The survival of three-dimensional tissue requires a vascular network to provide transport of oxygen and metabolic byproduct. Here, we report a new approach to create capillary blood vessels in vitro on biomaterials suitable for use as scaffolds in engineering tissues. Endothelial cells were cultured on chemical and to...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-0-387-74911-2_23
更新日期：2008-01-01 00:00:00
abstract：:Insulin-like growth factor II (IGF-II) belongs to the insulin family of peptides and acts as a growth factor in many fetal tissues and tumors. The gene expression of IGF-II is initiated at three different promoters which gives rise to multiple transcripts. In a human rhabdomyosarcoma cell line IN 157 IGF-II mRNAs of 6...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4684-5949-4_4
更新日期：1991-01-01 00:00:00
abstract：:Islet transplantation is emerging as a viable treatment option for selected patients with type 1 diabetes. Following the initial report in 2000 from Edmonton of insulin independence in seven out of seven consecutive recipients, there has been a huge expansion in clinical islet transplantation. The challenge we now fac...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-90-481-3271-3_30
更新日期：2010-01-01 00:00:00
abstract：:The Notch pathway is crucial in the regulation of stem cells biology. Notch-mediated signalling controls several aspects of tissue homeostasis in both embryonic and adult tissues, balancing stem cells maintenance and differentiation. Although the major elements of the pathway are well conserved throughout evolution, i...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-89512-3_12
更新日期：2018-01-01 00:00:00
abstract：:Leukocyte migration is essential for exerting self-defense mechanisms. During the extravasation process, leukocytes transmigrate through the endothelial lining and the subendothelial basement membrane. Accumulating evidence supports the involvement of heparanase in this process. Altered cellular distribution resulting...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-030-34521-1_16
更新日期：2020-01-01 00:00:00
abstract：:Antibiotics have long been suspected of contributing to male infertility; however, there are remarkably limited data to support this premise. A major challenge for evaluating antibiotic effects is that the diseases they treat often have negative impacts on male reproduction, so treatment with the antimicrobial can imp...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-69535-8_10
更新日期：2017-01-01 00:00:00
abstract：:In the anesthetized dog, the metabolic level of the pancreas was elevated by a secretin infusion (1.2 U/kg/hr iv), displaying a metabolic control of tissue oxygenation and blood flow. Question was raised how this system would response to a decrease in O2 supply, as induced by increasing doses of vasopressin (2-131 mU/...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-5188-7_51
更新日期：1986-01-01 00:00:00
abstract：:Spermatogenesis involves precise co-ordination of multiple cellular events that take place in the seminiferous epithelium composed of Sertoli cells and developing germ cells during the seminiferous epithelial cycle. Given the cyclic and co-ordinated nature of spermatogenesis, temporal and spatial expression of certain...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4614-4711-5_14
更新日期：2012-01-01 00:00:00
abstract：:Aluminum industry has been producing more than a century of history. Aluminum is a light metal which is widely used in industrial applications. Occupational aluminum workers are an important source for high exposure Al population. With the world's demand for aluminum and the increasing production, between 2007 and 201...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-981-13-1370-7_5
更新日期：2018-01-01 00:00:00
abstract：:Cancer is a complex multistep disease characterized by a profound genetic instability which leads to the aberrant and uncoordinated expression of several gene products, ultimately leading to the acquisition of a malignant phenotype. The identification of molecules and pathways that contribute to cancer establishment a...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4419-6066-5_6
更新日期：2010-01-01 00:00:00
abstract：:The purpose of this study was to investigate the effects of acute hypoxia on the inflection point of muscle oxygenation (IPMO) using near-infrared spectroscopy during incremental bicycle exercise. Eight male subjects (age: 22 +/- 2 years) performed two ramp incremental bicycle exercise tests until exhaustion under eac...
journal_title：Advances in experimental medicine and biology
pub_type： 临床试验,杂志文章
doi：10.1007/978-1-4419-1241-1_56
更新日期：2010-01-01 00:00:00
abstract：:Embryonic stem (ES) cells undergo self-renewal and are pluripotent, i.e., they can give rise to all the types of specialised cells in the body. Scientific knowledge on ES cells is increasing rapidly, leading to opportunities for establishment of ES cell-based in vitro tests for drug discovery, preclinical safety pharm...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4614-3055-1_2
更新日期：2012-01-01 00:00:00
abstract：:Five human leukocyte long-term suspension cultures were investigated by means of cytochemical and cytogenetic methods. A striking resemblance in the morphology of these cells originating either from peripheral blood or from spleen of patients with or without hematological disorders was found. Lymphocytic origin of all...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4757-0731-1_15
更新日期：1975-01-01 00:00:00
abstract：:Loudness perception can be studied based on the assumption that sounds of equal loudness elicit equal reaction time (RT; or "response latency"). We measured the underwater RTs of a harbor porpoise to narrowband frequency-modulated sounds and constructed six equal-latency contours. The contours paralleled the audiogram...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4939-2981-8_153
更新日期：2016-01-01 00:00:00
abstract：:The Dissemination and Exploitation Consensus Panel (DECP) is a panel of experts drawn from areas with relevant expertise who advise the Early Nutrition Programming Project (EARNEST) on how the results from the project can best be disseminated and exploited and their uses maximised. They meet annually and have discusse...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4020-9173-5_23
更新日期：2009-01-01 00:00:00
abstract：:It is now well recognized that a main actor in the continuous interaction between the nervous and immune systems is the pineal hormone MLT. T-helper cells bear G-protein coupled MLT cell membrane receptors and, perhaps, MLT nuclear receptors. Activation of MLT receptors enhances the release of T-helper cell type 1 (Th...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/0-306-46814-x_47
更新日期：1999-01-01 00:00:00
abstract：:The recruitment of monocytes from the peripheral vasculature to an area of chronic inflammation is a complex phenomenon. This complicated process is likely mediated to a large extent by chemotactic cytokines that are expressed via a cytokine cascade. A number of chronic diseases that are difficult to manage are charac...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4684-6009-4_8
更新日期：1991-01-01 00:00:00
abstract：:Ground roll waves traveling across the seabed provide extra information, their direction of rotation, compared with plane waves in fluids or solids. Idealized Rayleigh waves are "retrograde" in that their horizontal particle motion opposes the direction of travel of the wave when the interface is raised. A single poin...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4939-2981-8_53
更新日期：2016-01-01 00:00:00
abstract：:In normal and cancer cells, successful cell division requires accurate duplication of chromosomal DNA. All cells require a multiprotein DNA duplication system (replisomes) for their existence. However, death of normal cells in our body occurs through the apoptotic process. During apoptotic process several crucial gene...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-981-13-3065-0_15
更新日期：2018-01-01 00:00:00
abstract：:The field of proteomics holds promise for the discovery of new biomarkers for the early detection and diagnosis of disease, molecular targets for therapy and markers for therapeutic efficacy and toxicity. A variety of proteomics approaches may be used to address these goals. Two-dimensional gel electrophoresis (2D-PAG...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4615-0081-0_7
更新日期：2003-01-01 00:00:00
abstract：:Cancer is considered the disease of the century, which can be easily understood considering its increasing incidence worldwide. Over the last years, nanotechnology has been presenting promising theranostic approaches to tackle cancer, as the development of nanoparticle-based therapies. But, regardless of the promising...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-030-36588-2_10
更新日期：2020-01-01 00:00:00
abstract：:Tissue engineering is an appealing research field that involves the replacement and repair of damaged cells and tissues. Scientists and researchers are facing a great challenge to design and develop suitable scaffold materials with biological activities for the applications in tissue regeneration. Among a variety of n...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-981-13-0445-3_18
更新日期：2018-01-01 00:00:00
abstract：:Pulmonary hypertension (PH) is a deadly and increasingly prevalent vascular disease characterized by excessive pulmonary vascular remodeling and right ventricular dysfunction which leads to right heart failure, multiorgan dysfunction, and premature death. The cause of the vascular remodeling in PH remains elusive, and...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-3-319-63245-2_24
更新日期：2017-01-01 00:00:00
abstract：:The results of these studies suggest that halothane, in addition to its effect of reducing the trans-sarcolemmal Ca2+ influx, has a direct effect on the function of the sarcoplasmic reticulum by making the organelle leaky to Ca2+ and reducing the amount of Ca2+ stored. Isoflurane, on the other hand, does not appear to...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4684-5979-1_11
更新日期：1991-01-01 00:00:00
abstract：:Sprouting has been studied extensively using morphological markers, but relatively little is known regarding the molecular and biochemical events which underlie the sprouting response. Moreover, due to the lack of suitable markers, it has been difficult to examine changes in the major hippocampal pathways in animal le...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章,评审
doi：10.1007/978-1-4684-5769-8_47
更新日期：1990-01-01 00:00:00
abstract：:Taurine transport is important for volume regulation of cultured neurons and astroglial cells. Both cell types utilize similar mechanisms for taurine accumulation and efflux. However, taurine lost from cerebellar Purkinje cells in vivo is accumulated by adjacent astrocytes during hypoosmotic hyponatremia. To examine m...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/0-306-46838-7_23
更新日期：2000-01-01 00:00:00
abstract：:The SLE patient database at the Rheumatology Clinic, St. Luke's Hospital includes 62 patients, 58 of which have complete data. The patients were grouped according to sex (7 males vs 51 females). The presentation, clinical manifestations, ACR criteria and laboratory findings of the 2 groups were analyzed and compared. ...
journal_title：Advances in experimental medicine and biology
pub_type： 杂志文章
doi：10.1007/978-1-4615-4857-7_25
更新日期：1999-01-01 00:00:00
