scholarly journals The Effect of Dipeptidyl Peptidase-4 Inhibitors on Carotid Intima-media Thickness in Patients With Type 2 Diabetes Mellitus: a Meta-analysis

Author(s):  
Hua-song Xia ◽  
Yue Liu ◽  
Yang Fu ◽  
Meng Li ◽  
Yan-qing Wu

Abstract BACKGROUND: It is reported that dipeptidyl peptidase-4 (DPP-4) inhibitors can exert a protective effect on the cardiovascular system other than the glucose-lowering effect. However, whether DPP-4 inhibitors can delay or prevent the progression of carotid intima-media thickness (IMT), a marker for atherosclerosis, is not clear. METHODS: An extensive literature search was performed up to December 2019.Double-blind, randomized controlled trials that compare the effect of DPP-4 inhibitors with conventional therapy were included. The primary outcome was IMT of carotid.RESULTS: Four studies in total involving 1141 participants were enrolled. The results indicated that DPP-4 inhibitors group showed significant decreases in IMT (- 0.022 mm, P = 0.053) when compared with control group, but it was not statistically significant. There was also a decrease in hemoglobin A1c (HbA1c) (- 0.16%, p < 0.001) in DPP-4 inhibitors groups in comparison with control groups.CONCLUSION: Our study demonstrates DPP-4 inhibitors administrated in type 2 diabetes mellitus have no protective effects on carotid IMT compared with conventional/placebo treatment.

2019 ◽  
Vol 6 (1) ◽  
pp. 20-23
Author(s):  
Aditya Kurnianto ◽  
Dodik Tugaswowo Pramukarso

BACKGROUND :Ischemic stroke is the most common stroke comprising 70-80% of all cases. Carotid intima-media thickness (CIMT) is associated with the occurrence of stroke in older age and adults. Patients with type 2 diabetes mellitus tend to develop a thickening of intima-media carotid artery. Simvastatins inhibit further atherothrombotic process. OBJECTIVE : To analyze the effect of simvastatin for CIMT in ischemic stroke patient with type 2 diabetes mellitus. METHOD : This study was a Randomized Pretest-Posttest Design and conducted at the Hospital Inpatient Ward Dr. Kariadi and Ketileng Semarang from January to December 2014 for all first ischemic stroke patients with Type 2 Diabetes Mellitus. Subjects were divided into groups of 26 controls and 28 patients treated groups. Treatment group were given simvastatin 20 mg each daily for 24 weeks in 28 subjects with a history of acute ischemic stroke and type 2 Diabetes mellitus. Examine the CIMT at the 1st week and 24th week. The normality of the data were tested using Shapiro Wilk and the differences analyzed by using Paired t-test and independent t test. RESULT : There was a significant differences between delta carotid intima-media thickness on administration of simvastatin for ischemic stroke patients with type 2 diabetes mellitus (p=0,008). CONCLUSION : Simvastatin significantly decreases CIMT on ischemic stroke patients with type 2 diabetes mellitus. Keyword : simvastatin, ischemic stroke, carotid intima-media thickness, type 2 diabetes mellitus   LATAR BELAKANG :Stroke iskemik memiliki angka insidensi terbanyak yaitu 70-80% kasus stroke. Ketebalan Intima-media karotis berhubungan dengan terjadinyastroke pada usia tua.Pasien dengan Diabetes mellitus tipe 2 memiliki kemungkinan yang lebih besar mengalami penebalan intima-media carotis. Simvatatin menghambat proses aterotrombosis. TUJUAN :Untuk menganalisis pengaruh simvastatin terhadap ketebalan intima-media karotis pada pasien stroke iskemik dengan diabetes mellitus tipe 2. METODE :Penelitian ini adalah dengan Randomized Pretest-Posttest Design dan telah dilakukan di Rawat Jalan RSUP dr. Kariadi dan poli saraf rawat jalan RSUD Kota Semarang mulai Januari sampai dengan Desember 2014 untuk semua pasien stroke iskemik pertama kali dengan diabetes mellitus tipe 2. Subjek dibagi menjadi kelompok kontrol 26 pasien dan kelompok perlakuan 28 pasien. Kelompok perlakuan diberi simvastatin 20 mg sehari selama 24 minggu pada 28 subjek stroke iskemik dengan  diabetes mellitus tipe 2. Pemeriksaan ketebalan intima-media karotis dilakukan pada minggu ke-1 dan minggu ke-24. Data kemudian di uji normalitasnya menggunakan Saphiro wilk, lalu di analisis menggunakan uji beda paired t testdan independent t test. HASIL :  Kelompok perlakuan didapatkan penurunan ketebalan tunika intima arteri karotis (0,395 + 0,46; p=0,514), KESIMPULAN : Pemberian simvastatin menurunkan ketebalan intima-media karotis secara bermakna pada pasien stroke iskemik dengan diabetes mellitus tipe 2. Kata Kunci     :simvastatin,stroke iskemik, ketebalan intima-media karotis, diabetes mellitus tipe 2      


Antioxidants ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 233
Author(s):  
Elisabetta Bigagli ◽  
Cristina Luceri ◽  
Ilaria Dicembrini ◽  
Lorenzo Tatti ◽  
Francesca Scavone ◽  
...  

Pre-clinical studies suggested potential cardiovascular benefits of dipeptidyl peptidase-4 inhibitors (DPP4i), however, clinical trials showed neither beneficial nor detrimental effects in patients with type 2 diabetes mellitus (T2DM). We examined the effects of DPP4i on several circulating oxidative stress markers in a cohort of 32 T2DM patients (21 males and 11 post-menopausal females), who were already on routine antidiabetic treatment. Propensity score matching was used to adjust demographic and clinical characteristics between patients who received and who did not receive DPP4i. Whole-blood reactive oxygen species (ROS), plasma advanced glycation end products (AGEs), advanced oxidation protein products (AOPP), carbonyl residues, as well as ferric reducing ability of plasma (FRAP) and leukocyte DNA oxidative damage (Fpg sites), were evaluated. With the exception of Fpg sites, that showed a borderline increase in DPP4i users compared to non-users (p = 0.0507), none of the biomarkers measured was affected by DPP4i treatment. An inverse correlation between estimated glomerular filtration rate and AGEs (p < 0.0001) and Fpg sites (p < 0.05) was also observed. This study does not show any major effect of DPP4i on oxidative stress, assessed by several circulating biomarkers of oxidative damage, in propensity score-matched cohorts of T2DM patients.


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