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Complications
The Association between Pancreatic Steatosis and Diabetic Retinopathy in Type 2 Diabetes Mellitus Patients
Jee Sun Jeong, Mee Kyung Kim, Kyung Do Han, Oak Kee Hong, Ki-Hyun Baek, Ki-Ho Song, Dong Jin Chung, Jung-Min Lee, Hyuk-Sang Kwon
Diabetes Metab J. 2018;42(5):425-432.   Published online August 9, 2018
DOI: https://doi.org/10.4093/dmj.2017.0107
  • 4,076 View
  • 43 Download
  • 5 Web of Science
  • 4 Crossref
AbstractAbstract PDFPubReader   
Background

Whether pancreatic steatosis has a local or systemic effect, like ectopic fat of other major organs, remains unknown. Data on the influence of pancreatic steatosis on microvascular complication are rare. Therefore, we investigated the relationship between pancreatic steatosis and diabetic retinopathy (DR) in patients with type 2 diabetes mellitus (T2DM).

Methods

The attenuation of three pancreatic regions (head, body, and tail) and the spleen (S) in 186 patients with T2DM was measured using non-enhanced computed tomography imaging. We used three parameters for the assessment of pancreatic steatosis (‘P’ mean: mean attenuation of three pancreatic regions; P–S: difference between ‘P’ mean and ‘S’; P/S: the ‘P’ mean to ‘S’ ratio). The presence of DR was assessed by an expert ophthalmologist using dilated fundoscopy.

Results

The average P mean was 29.02 Hounsfield units (HU), P–S was −18.20 HU, and P/S was 0.61. The three pancreatic steatosis parameters were significantly associated with the prevalence of DR in non-obese T2DM patients. In the non-obese group, the odds ratios of P mean, P–S, and P/S for the prevalence of DR, after adjustment for age, sex, and glycosylated hemoglobin level, were 2.449 (P=0.07), 2.639 (P=0.04), and 2.043 (P=0.02), respectively.

Conclusion

In this study, pancreatic steatosis was significantly associated with DR in non-obese patients with T2DM. Further studies are necessary to clarify the causal relationship between pancreatic steatosis and the development of DR.

Citations

Citations to this article as recorded by  
  • Intra‐pancreatic fat is associated with continuous glucose monitoring metrics
    Yutong Liu, Wandia Kimita, Xiatiguli Shamaitijiang, Loren Skudder‐Hill, Ivana R. Sequeira‐Bisson, Maxim S. Petrov
    Diabetes, Obesity and Metabolism.2024;[Epub]     CrossRef
  • Association between Intrapancreatic Fat Deposition and Lower High-Density Lipoprotein Cholesterol in Individuals with Newly Diagnosed T2DM
    Jianliang Wang, Qingyun Cai, Xiaojuan Wu, Jiaxuan Wang, Xiaona Chang, Xiaoyu Ding, Jia Liu, Guang Wang, Muhittin Yurekli
    International Journal of Endocrinology.2023; 2023: 1.     CrossRef
  • The comparison of pancreatic and hepatic steatosis in healthy liver donor candidates
    Bedriye Koyuncu Sokmen, Tolga Sahin, Alihan Oral, Erdem Kocak, Nagihan Inan
    Scientific Reports.2021;[Epub]     CrossRef
  • Computed Tomography-Estimated Pancreatic Steatosis is Associated with Carotid Plaque in Type 2 Diabetes Mellitus Patients: A Cross-Sectional Study from China
    Pengtao Sun, Chunzhi Fan, Rengui Wang, Tongwei Chu, Xiaoli Sun, Dongxue Zhang, Xuechao Du
    Diabetes, Metabolic Syndrome and Obesity: Targets and Therapy.2021; Volume 14: 1329.     CrossRef
Angiotensin II Inhibits Insulin Binding to Endothelial Cells
Su-Jin Oh, Won-Chul Ha, Jee-In Lee, Tae-Seo Sohn, Ji-Hyun Kim, Jung-Min Lee, Sang-Ah Chang, Oak-Kee Hong, Hyun-Shik Son
Diabetes Metab J. 2011;35(3):243-247.   Published online June 30, 2011
DOI: https://doi.org/10.4093/dmj.2011.35.3.243
  • 3,798 View
  • 24 Download
  • 6 Crossref
AbstractAbstract PDFPubReader   
Background

Insulin-mediated glucose uptake in insulin target tissues is correlated with interstitial insulin concentration, rather than plasma insulin concentration. Therefore, insulin delivery to the interstitium of target tissues is very important, and the endothelium may also play an important role in the development of insulin resistance.

Methods

After treating bovine aortic endothelial cells with angiotensin II (ATII), we observed the changes in insulin binding capacity and the amounts of insulin receptor (IR) on the cell membranes and in the cytosol.

Results

After treatment of 10-7M ATII, insulin binding was decreased progressively, up to 60% at 60 minutes (P<0.05). ATII receptor blocker (eprosartan) dose dependently improved the insulin binding capacity which was reduced by ATII (P<0.05). At 200 µM, eprosartan fully restored insulin binding capacity, althogh it resulted in only a 20% to 30% restoration at the therapeutic concentration. ATII did not affect the total amount of IR, but it did reduce the amount of IR on the plasma membrane and increased that in the cytosol.

Conclusion

ATII decreased the insulin binding capacity of the tested cells. ATII did not affect the total amount of IR but did decrease the amount of IR on the plasma membrane. Our data indicate that ATII decreases insulin binding by translocating IR from the plasma membrane to the cytosol. The binding of insulin to IR is important for insulin-induced vasodilation and transendothelial insulin transport. Therefore, ATII may cause insulin resistance through this endothelium-based mechanism.

Citations

Citations to this article as recorded by  
  • Acute, local infusion of angiotensin II impairs microvascular and metabolic insulin sensitivity in skeletal muscle
    Dino Premilovac, Emily Attrill, Stephen Rattigan, Stephen M Richards, Jeonga Kim, Michelle A Keske
    Cardiovascular Research.2019; 115(3): 590.     CrossRef
  • Angiotensin II type 2 receptor inhibits expression and function of insulin receptor in rat renal proximal tubule cells
    Yang Yang, Caiyu Chen, Chunjiang Fu, Zaicheng Xu, Cong Lan, Yongchun Zeng, Zhi Chen, Pedro A. Jose, Ye Zhang, Chunyu Zeng
    Journal of the American Society of Hypertension.2018; 12(2): 135.     CrossRef
  • Endothelial function, its relation to arterial hypertension and the possibility of its modulation
    Vladislav Biel, Jan Novák, Luděk Pluháček, Jiří Špác
    Vnitřní lékařství.2018; 64(7-8): 762.     CrossRef
  • Evidence to Consider Angiotensin II Receptor Blockers for the Treatment of Early Alzheimer’s Disease
    Juan M. Saavedra
    Cellular and Molecular Neurobiology.2016; 36(2): 259.     CrossRef
  • Ameliorative effect of eprosartan on high-fat diet/streptozotocin-induced early diabetic nephropathy in rats
    Mohamed A. Morsy, Gehan H. Heeba, Magda E. Mahmoud
    European Journal of Pharmacology.2015; 750: 90.     CrossRef
  • Metabolic actions of angiotensin II and insulin: A microvascular endothelial balancing act
    Ranganath Muniyappa, Sahzene Yavuz
    Molecular and Cellular Endocrinology.2013; 378(1-2): 59.     CrossRef

Diabetes Metab J : Diabetes & Metabolism Journal