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dipeptidyl peptidase 4

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https://www.readbyqxmd.com/read/28432752/incretin-based-glucose-lowering-medications-and-the-risk-for-acute-pancreatitis-and-or-pancreatic-cancer-risk-reassuring-data-from-cardio-vascular-outcome-trials
#1
Michael A Nauck, Juris J Meier, Wolfgang E Schmidt
Incretin-based medications (glucagon-like peptide-1 [GLP-1] receptor agonists and inhibitors of dipeptidyl peptidase-4 [DPP-4] are glucose-lowering drugs approved and introduced after 2006 (1). Although both classes of drugs appeared to be relatively safe based on results from clinical trials and standard animal toxicology studies, epidemiological data (2, 3) and histological findings (4) in genetically modified rodents exposed to such agents have raised concern that pancreatitis and pancreatic cancer may be long-term risks associated with this therapy...
April 22, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28431666/glp-1-receptor-agonists-and-heart-failure-in-diabetes
#2
André J Scheen
The prevalence of heart failure (HF) is increasing in patients with type 2 diabetes (T2D), and glucose-lowering agents have distinctive effects on the risk of developing HF that requires hospitalization. Such an increased risk has been consistently reported with thiazolidinediones (glitazones) and perhaps also with the dipeptidyl peptidase (DPP)-4 inhibitor saxagliptin (at least in SAVOR - TIMI 53), whereas a markedly decreased risk was highlighted with the sodium - glucose cotransporter type 2 (SGLT2) inhibitor empagliflozin in EMPA-REG OUTCOME...
April 2017: Diabetes & Metabolism
https://www.readbyqxmd.com/read/28420715/role-of-soluble-and-membrane-bound-dipeptidylpeptidase-4-in-diabetic-nephropathy
#3
Ahmed A Hasan, Berthold Hocher
Diabetic nephropathy is one of the most frequent, devastating, and costly complications of diabetes. The available therapeutic approaches are limited. Dipeptidyl peptidase type 4 (DPP-4) inhibitors represent a new class of glucose-lowering drugs that might have in addition reno-protective properties. DPP-4 exists in two forms: a plasma membrane-bound form and a soluble form, and can exert many biological actions mainly through its peptidase activity and interaction with extracellular matrix components. The kidneys have the highest DPP-4 expression level in mammalians...
April 18, 2017: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/28420699/erratum-alogliptin-a-dipeptidyl-peptidase-4-inhibitor-prevents-the-progression-of-carotid-atherosclerosis-in-patients-with-type-2-diabetes-the-study-of-preventive-effects-of-alogliptin-on-diabetic-atherosclerosis-spead-a-diabetes-care-2016-39-139-148
#4
Tomoya Mita, Naoto Katakami, Hidenori Yoshii, Tomio Onuma, Hideaki Kaneto, Takeshi Osonoi, Toshihiko Shiraiwa, Keisuke Kosugi, Yutaka Umayahara, Tsunehiko Yamamoto, Hiroki Yokoyama, Nobuichi Kuribayashi, Hideaki Jinnouchi, Masahiko Gosho, Iichiro Shimomura, Hirotaka Watada
No abstract text is available yet for this article.
April 18, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28420649/a-sandwich-elisa-for-measurement-of-the-primary-glucagon-like-peptide-1-metabolite
#5
Nicolai J Wewer Albrechtsen, Ali Asmar, Frederik Jensen, Signe Törang, Lene Simonsen, Rune E Kuhre, Meena Asmar, Simon Veedfald, Astrid Plamboeck, Filip K Knop, Tina Vilsboll, Sten Madsbad, Michael A Nauck, Carolyn F Deacon, Jens Bulow, Jens J Holst, Bolette Hartmann
Glucagon-like peptide-1 (GLP-1) is an incretin hormone secreted from the gastrointestinal tract. It is best known for its glucose-dependent insulinotropic effects GLP-1 is secreted in its intact (active) form (7-36NH2) but is rapidly degraded by the dipeptidyl peptidase 4 (DPP-4) enzyme, converting >90% to the primary metabolite (9-36NH2) before reaching the targets via the circulation. Although originally thought to be inactive or antagonistic, GLP-1 9-36NH2 may have independent actions, and it is therefore relevant to be able to measure it...
April 18, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28418203/effectiveness-of-vildagliptin-as-add-on-to-metformin-monotherapy-among-uncontrolled-type-2-diabetes-mellitus-patients-in-a-real-world-setting
#6
Cheli Melzer Cohen, Carla Davis, Varda Shalev, Gabriel Chodick
BACKGROUND: Vildagliptin is a dipeptidyl peptidase-4 inhibitor (DPP4-i) commonly used as a dual oral agent with metformin, thiazolidinediones, or sulfonylurea for type 2 diabetes mellitus (T2DM). The efficacy of dual therapy with vildagliptin and metformin has been established in randomized clinical trials but little evidence exists from observational studies. The aims of the present study were to evaluate the effectiveness of vildagliptin as an add-on therapy to metformin in reducing HbA1c as well as its influences on body weight and blood lipids in a real-life setting...
April 18, 2017: Journal of Diabetes
https://www.readbyqxmd.com/read/28408925/combination-therapy-with-a-sodium-glucose-cotransporter-2-inhibitor-and-a-dipeptidyl-peptidase-4-inhibitor-additively-suppresses-macrophage-foam-cell-formation-and-atherosclerosis-in-diabetic-mice
#7
Michishige Terasaki, Munenori Hiromura, Yusaku Mori, Kyoko Kohashi, Hideki Kushima, Makoto Ohara, Takuya Watanabe, Olov Andersson, Tsutomu Hirano
Dipeptidyl peptidase-4 inhibitors (DPP-4is), in addition to their antihyperglycemic roles, have antiatherosclerotic effects. We reported that sodium-glucose cotransporter 2 inhibitors (SGLT2is) suppress atherosclerosis in a glucose-dependent manner in diabetic mice. Here, we investigated the effects of combination therapy with SGLT2i and DPP-4i on atherosclerosis in diabetic mice. SGLT2i (ipragliflozin, 1.0 mg/kg/day) and DPP-4i (alogliptin, 8.0 mg/kg/day), either alone or in combination, were administered to db/db mice or streptozotocin-induced diabetic apolipoprotein E-null (Apoe(-/-) ) mice...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/28408838/dpp-4-inhibitor-treatment-%C3%AE-cell-response-but-not-hba1c-reduction-is-dependent-on-the-duration-of-diabetes
#8
Plamen Kozlovski, Vaishali Bhosekar, James E Foley
INTRODUCTION: Dipeptidyl peptidase-4 (DPP-4) inhibitors reduce hyperglycemia in patients with type 2 diabetes mellitus (T2DM) by enhancing insulin and suppressing glucagon secretion. Since T2DM is associated with progressive loss of β-cell function, we hypothesized that the DPP-4 inhibitor action to improve β-cell function would be attenuated with longer duration of T2DM. METHODS: Data from six randomized, placebo-controlled trials of 24 weeks duration, where β-cell response to vildagliptin 50 mg twice daily was assessed, were pooled...
2017: Vascular Health and Risk Management
https://www.readbyqxmd.com/read/28403877/a-comparison-of-effects-of-dpp-4-inhibitor-and-sglt2-inhibitor-on-lipid-profile-in-patients-with-type-2-diabetes
#9
Seon-Ah Cha, Yong-Moon Park, Jae-Seung Yun, Tae-Seok Lim, Ki-Ho Song, Ki-Dong Yoo, Yu-Bae Ahn, Seung-Hyun Ko
BACKGROUND: Previous studies suggest that dipeptidyl peptidase-4 (DPP-4) inhibitors and sodium glucose cotransporter 2 (SGLT2) inhibitors have different effects on the lipid profile in patients with type 2 diabetes. We investigated the effects of DPP-4 inhibitors and SGLT2 inhibitors on the lipid profile in patients with type 2 diabetes. METHODS: From January 2013 to December 2015, a total of 228 patients with type 2 diabetes who were receiving a DPP-4 inhibitor or SGLT2 inhibitor as add-on therapy to metformin and/or a sulfonylurea were consecutively enrolled...
April 13, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28403729/cost-effectiveness-of-vildagliptin-for-people-with-type-2-diabetes-mellitus-in-brazil-findings-and-implications
#10
Gustavo Laine Araujo De Oliveira, Augusto Afonso Guerra Júnior, Brian Godman, Francisco de Assis Acurcio
Vildagliptin is an inhibitor of the enzyme dipeptidyl peptidase 4, indicated for the treatment of type 2 diabetes mellitus, combined or not with metformin. This study aims to evaluate the cost-effectiveness of vildagliptin in the Brazilian context. Areas covered: Using MEDLINE, Cochrane Library, Lilacs and CRD, six studies were selected for the economic models. This study utilised cost data in the Brazilian health system to provide the context. Expert commentary: Type 2 diabetes mellitus is an epidemic disease and represents a challenge for all health care systems...
April 2017: Expert Review of Pharmacoeconomics & Outcomes Research
https://www.readbyqxmd.com/read/28402902/cardiovascular-outcome-studies-with-incretin-based-therapies-comparison-between-dpp-4-inhibitors-and-glp-1-receptor-agonists
#11
REVIEW
André J Scheen
Dipeptidyl peptidase-4 inhibitors (DPP-4is) and glucagon-like peptide-1 receptor agonists (GLP-1RAs) represent two distinct classes of incretin-based therapies used for the treatment of type 2 diabetes. Non-inferiority versus placebo was shown in large prospective cardiovascular outcome trials in patients with high cardiovascular risk: SAVOR-TIMI 53 (saxagliptin), EXAMINE (alogliptin), and TECOS (sitagliptin); ELIXA (lixisenatide), LEADER (liraglutide) and SUSTAIN 6 (semaglutide). The promises raised by meta-analyses of phase 2-3 trials with DPP-4is were non confirmed as no cardiovascular protection could be evidenced...
March 25, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28402172/rational-design-and-synthesis-of-affinity-matrices-based-on-proteases-immobilized-onto-cellulose-membranes
#12
Alberto Del Monte-Martínez, Jorge González-Bacerio, Bessy Cutiño-Avila, Jorge Rojas, Mae Chappé, Emir Salas-Sarduy, Isel Pascual, José M Guisán
Discovery of new protease inhibitors may result in potential therapeutic agents or useful biotechnological tools. Obtainment of these molecules from natural sources requires simple, economic and highly efficient purification protocols. The aim of this work was the obtainment of affinity matrices by the covalent immobilization of dipeptidyl peptidase IV (DPP-IV) and papain onto cellulose membranes, previously activated with formyl (FCM) or glyoxyl groups (GCM). GCM showed the highest activation grade (10.2 µmol aldehyde/cm(2))...
April 12, 2017: Preparative Biochemistry & Biotechnology
https://www.readbyqxmd.com/read/28397367/continuous-glucose-monitoring-reveals-hypoglycemia-risk-in-elderly-patients-with-type-2-diabetes-mellitus
#13
Takahiro Ishikawa, Masaya Koshizaka, Yoshiro Maezawa, Minoru Takemoto, Yoshiharu Tokuyama, Toshihiro Saito, Koutaro Yokote
INTRODUCTION: The incidence of type 2 diabetes is higher in elderly patients, in whom this disease is associated with dementia, falling, stroke, and death. We utilized a continuous glucose monitoring (CGM) device to analyze the relationship between hypoglycemia and diabetes treatments to identify risk factors for hypoglycemia (defined as a blood glucose level <70 mg/dL). MATERIALS AND METHODS: We classified 170 patients aged ≥65 years with type 2 diabetes who were receiving steady-state medication (29 of whom were inpatients) into hypoglycemic and non-hypoglycemic groups, and compared their HbA1c levels, treatment types, continuous glucose monitoring data, and other parameters...
April 11, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28393419/synthesis-and-evaluation-of-novel-1-2-4-triazolo-5-1-c-1-2-4-triazines-and-pyrazolo-5-1-c-1-2-4-triazines-as-potential-antidiabetic-agents
#14
Vladimir L Rusinov, Irina M Sapozhnikova, Anastasiya M Bliznik, Oleg N Chupakhin, Valery N Charushin, Alexander A Spasov, Pavel M Vassiliev, Valentina A Kuznetsova, Andrey I Rashchenko, Denis A Babkov
Inhibition of the dipeptidyl peptidase-4 (DPP4) enzyme activity and prevention of advanced glycation end (AGE) products formation represents a reliable approach to achieve control over hyperglycemia and the associated pathogenesis of diabetic vascular complications. In the frames of this research study, several triazolo- and pyrazolotriazines were synthesized and evaluated as inhibitors of AGE products formation, DPP4, glycogen phosphorylase and α-glucosidase activities, as well as AGE cross-link breakers...
April 10, 2017: Archiv der Pharmazie
https://www.readbyqxmd.com/read/28391633/comparisons-of-cardioprotective-efficacy-between-fibroblast-growth-factor-21-and-dipeptidyl-peptidase-4-inhibitor-in-pre-diabetic-rats
#15
Pongpan Tanajak, Piangkwan Sa-Nguanmoo, Nattayaporn Apaijai, Xiaojie Wang, Guang Liang, Xiaokun Li, Chao Jiang, Siriporn C Chattipakorn, Nipon Chattipakorn
AIMS: Comparative efficacy between fibroblast growth factor 21 (FGF21) and vildagliptin on metabolic regulation, cardiac mitochondrial function, heart rate variability (HRV) and left ventricular (LV) function is not known. We hypothesized that FGF21 and vildagliptin share a similar efficacy in improving these parameters in high-fat diet (HFD) induced obese-insulin resistant rats. METHODS: Twenty-four male Wistar rats were fed with either a normal diet (ND) or a HFD for 12 weeks...
April 9, 2017: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/28390814/meeting-report-of-the-pathogenesis-of-pemphigus-and-pemphigoid-meeting-in-munich-september-2016
#16
Enno Schmidt, Volker Spindler, Rüdiger Eming, Masayuki Amagai, Frank Antonicelli, John F Baines, Meriem Belheouane, Philippe Bernard, Luca Borradori, Marzia Caproni, Giovanni Di Zenzo, Sergei Grando, Karen Harman, Marcel F Jonkman, Hiroshi Koga, Ralf J Ludwig, Andrew P Kowalczyk, Eliane J Müller, Wataru Nishie, Hendri Pas, Aimee S Payne, Christian D Sadik, Allan Seppänen, Jane Setterfield, Hiroshi Shimizu, Animesh A Sinha, Eli Sprecher, Michael Sticherling, Hideyuki Ujiie, Detlef Zillikens, Michael Hertl, Jens Waschke
Autoimmune blistering diseases are a heterogeneous group of about a dozen complex disorders that are characterized by intraepidermal (pemphigus) and subepidermal blistering (pemphigoid diseases and dermatitis herpetiformis). The Pathogenesis of Pemphigus and Pemphigoid Meeting, organized by the Departments of Dermatology in Lübeck and Marburg and the Institute of Anatomy and Cell Biology, Munich, was held in September 2016 in Munich. The meeting brought together basic scientists and clinicians from all continents dedicating their work to autoimmune blistering diseases...
April 5, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28387494/-optimizing-basal-insulin-therapy-in-type-2-diabetes
#17
A J Scheen, N Paquot
Because of the natural history of type 2 diabetes and the increasing life expectancy, more and more patients are treated with insulin after failure of oral therapy. International guidelines give the preference to basal insulin, most often while maintaining metformin. If this treatment does not allow to reach the glycaemic objectives, optimizing therapy is mandatory. This clinical case offers the opportunity of discussing both advantages and disadvantages of three therapeutic options : the shift from basal insulin to a basal-plus or a basal-bolus insulin regimen, the addition of another oral glucose-lowering agent, either a dipeptidyl peptidase-4 inhibitor (gliptin) or an inhibitor of cotransporters sodium-glucose type 2 cotransporters (gliflozin), or the combination of basal insulin and a glucagon-like peptide-1 receptor agonist...
March 2017: Revue Médicale de Liège
https://www.readbyqxmd.com/read/28387100/-about-the-choice-between-a-dpp-4-inhibitor-and-a-sglt-2-inhibitor-tor-treating-type-2-diabetes
#18
REVIEW
A J Scheen, N Paquot
Two new classes of oral antidiabetic agents play an increasing role in the management of type 2 diabetes, dipeptidyl peptidase-4 (DPP-4) inhibitors (gliptins) and sodiumglucose cotransporters type 2 (SGLT2) inhibitors (gliflozins). After failure of a monotherapy with metformin (first pharmacological choice in type 2 diabetes), both may offer an alternative to the add-on of a sulphonylurea, especially in patients at risk of hypoglycaemia. However, the choice between a DPP-4 inhibitor and a SGLT2 inhibitor is not easy and should be oriented based upon the individual patient characteristics...
December 2016: Revue Médicale de Liège
https://www.readbyqxmd.com/read/28385659/efficacy-and-safety-of-once-weekly-semaglutide-versus-once-daily-sitagliptin-as-an-add-on-to-metformin-thiazolidinediones-or-both-in-patients-with-type-2-diabetes-sustain-2-a-56-week-double-blind-phase-3a-randomised-trial
#19
Bo Ahrén, Luis Masmiquel, Harish Kumar, Mehmet Sargin, Julie Derving Karsbøl, Sanja Hald Jacobsen, Francis Chow
BACKGROUND: Semaglutide is a novel glucagon-like peptide-1 (GLP-1) analogue, suitable for once-weekly subcutaneous administration, in development for treatment of type 2 diabetes. We assessed the efficacy and safety of semaglutide versus the dipeptidyl peptidase-4 (DPP-4) inhibitor sitagliptin in patients with type 2 diabetes inadequately controlled on metformin, thiazolidinediones, or both. METHODS: We did a 56-week, phase 3a, randomised, double-blind, double-dummy, active-controlled, parallel-group, multinational, multicentre trial (SUSTAIN 2) at 128 sites in 18 countries...
April 3, 2017: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/28379992/a-novel-recombinant-antibody-specific-to-full-length-stromal-derived-factor-1-for-potential-application-in-biomarker-studies
#20
Daniel I Bromage, Stasa Taferner, Mahesh Pillai, Derek M Yellon, Sean M Davidson
BACKGROUND: Stromal derived factor-1α (SDF-1α/CXCL12) is a chemokine that is up-regulated in diseases characterised by tissue hypoxia, including myocardial infarction, ischaemic cardiomyopathy and remote ischaemic conditioning (RIC), a technique of cyclical, non-injurious ischaemia applied remote from the heart that protects the heat from lethal ischaemia-reperfusion injury. Accordingly, there is considerable interest in SDF-1α as a potential biomarker of such conditions. However, SDF-1α is rapidly degraded and inactivated by dipeptidyl peptidase 4 and other peptidases, and the kinetics of intact SDF-1α remain unknown...
2017: PloS One
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