scholarly journals Oral therapy for type 1 diabetes mellitus using a novel immunomodulator, FTY720 (fingolimod), in combination with sitagliptin, a dipeptidyl peptidase-4 inhibitor, examined in non-obese diabetic mice

2012 ◽  
Vol 3 (5) ◽  
pp. 441-448 ◽  
Author(s):  
Takumi Tsuji ◽  
Yuya Yoshida ◽  
Tetsuro Fujita ◽  
Takeyuki Kohno
Author(s):  
Atsushi Iwabuchi ◽  
Tomohiro Kamoda ◽  
Makoto Saito ◽  
Hiroki Nozue ◽  
Isho Izumi ◽  
...  

2021 ◽  
Vol Volume 14 ◽  
pp. 565-573 ◽  
Author(s):  
Jaquellyne Gurgel Penaforte-Saboia ◽  
Carlos Eduardo Barra Couri ◽  
Natasha Vasconcelos Albuquerque ◽  
Vanessa Lauanna Lima Silva ◽  
Natália Bitar da Cunha Olegario ◽  
...  

2010 ◽  
Vol 151 (22) ◽  
pp. 899-902 ◽  
Author(s):  
Tímea Varga ◽  
Gábor Firneisz ◽  
Géza Nagy ◽  
Anikó Somogyi

A dipeptidil-peptidáz-4 enzim – amely azonos a T-lymphocyta membránfelszínhez kötött CD26 molekulával – az inkretin hormonok bontásával jelentős szerepet játszik a szénhidrát-anyagcsere szabályozásában. Célkitűzés: Vizsgálatunk célja az volt, hogy meghatározzuk az éhomi és postprandialis szérum-DPP-4 enzimaktivitását 41 1-es, 87 2-es típusú cukorbetegben, valamint 25 egészséges személyben. Módszer: A szérum-DPP-4-enzimaktivitás meghatározása microplate-alapú kinetikus eljárással történt éhomi, majd étkezést követően 60 és 120 perces időszakokban. Eredmények: A DPP-4-enzimaktivitás mind éhomi, mind postprandialis állapotban szignifikánsan magasabb volt az 1-es típusú diabetesben szenvedőknél, mint a 2-es típusú diabeteses vagy a kontrollszemélyekben. Nem találtunk változást az enzimaktivitásban egyik csoporton belül sem a postprandialis és az éhomi állapot között. Nem volt korreláció sem az éhomi plazmaglükóz- és a szérum-DPP-4-enzimaktivitás, sem a HbA 1c és a szérum-DPP-4-enzimaktivitás között. Következtetés: Eredményeink felvetik annak a valószínűségét, hogy a DPP-4-gyel kapcsolatba hozható vércukorszint-változás nem a szérumban mérhető DPP-4-aktivitás-változás következménye, hanem parakrin módon ható DPP-4-hatásként jelentkezik. Az 1-es típusú diabetesben észlelhető emelkedett DPP-4-enzimaktivitás ugyanakkor a pancreas autoimmun folyamatára utalhat, de hormonális feed-back mechanizmust, esetleg célszervkárosodást is jelezhet.


2017 ◽  
Vol 4 (S) ◽  
pp. 165
Author(s):  
Anh Nguyen Tu Bui ◽  
Cong Le Thanh Nguyen ◽  
Ngoc Kim Phan ◽  
Loan Thi-Tung Dang

Background: Many studies suggested adipose derived stem cell (ASC) transplantation as a new approach to control hyperglycemia in type 1 diabetes mellitus. It is proposed that the effects of these cells could be not only based on the direct cell-cell interaction but also the secretion of cytokines. This study aimed to demonstrate the effect of adipose stem cell-derived conditioned medium (CM) on the treatment of STZ-induced diabetic mice.  Methods: CM was obtained from 24-hours-cultured medium of ASCs and centrifuged to remove the debris. Type 1 diabetic mice were intraperitoneally injected CM for 30 consecutive days. Therapeutic efficacy of CM was assessed by survival rate, blood glucose level, serum insulin level, histological structure of pancreatic islets. Results: The results showed that CM treatment could decrease mortality rate (from 33,33% to 0%) as well as blood glucose level (from 425,667±65,753 mg/dl to 203,500 mg ±20,350 mg/dl) and enhance insulin secretion, improve size and function of pancreatic islets of diabetic mice.  Conclusion: Conditioned medium maybe a promising therapy for type 1 diabetes mellitus.


Life Sciences ◽  
2019 ◽  
Vol 234 ◽  
pp. 116738 ◽  
Author(s):  
Catarina Marques ◽  
Andreia Gonçalves ◽  
Patrícia Manuela Ribeiro Pereira ◽  
Daniela Almeida ◽  
Beatriz Martins ◽  
...  

Author(s):  
May Saab ◽  
Karim Raafat ◽  
Hoda El-Maradny

Purpose: Diabetic somatic neuropathy is one of the most prevalent complications in type 1 diabetes mellitus. Many treatments were investigated to alleviate the pain associated with this condition. Capsaicin is a naturally occurring lipophilic alkaloid that proved to be an effective and safe treatment of chronic painful disorders. Despite the known therapeutic benefits of capsaicin, the conventional topical formulations have limited bioavailability. Therefore, the current study aims to develop capsaicin nanoemulgel to increase skin permeation and enhance its activity against neuropathic pain. Methods: Low-energy emulsification method was used to prepare nanoemulsions, using eucalyptus oil as the oily phase, tween 80 as a surfactant, propylene glycol, ethanol and isopropyl alcohol as co-surfactants. Pseudo-ternary phase diagrams were constructed to investigate and optimize the formulation. Subsequently, the optimum formulation was formulated as a nanoemulgel and investigated for, skin permeation using Franz diffusion cell, and diabetic neuropathy management using alloxan-induced diabetic mice. Results: The selected nanoemulsion containing 0.05% capsaicin is composed of 8 % oil, 24 % Smix (Tween 80: isopropyl alcohol 2:1 w/w) and 68 % water. It is characterized by nanosized globules (28.15±0.24 nm) with a relatively low polydispersity index (0.27±0.05). The nanoemulgel revealed circa 4-fold increase in capsaicin cumulative permeation when compared to the conventional gel, and an improvement in its antinociceptive properties was observed in the treated diabetic mice (p<0.05). Conclusion: The selected capsaicin nanoemulgel would be a promising transdermal formulation that may alleviate diabetic neuropathy in type 1 diabetes mellitus patients.


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