scholarly journals Serum and aqueous humor adiponectin levels correlate with diabetic retinopathy development and progression

PLoS ONE ◽  
2021 ◽  
Vol 16 (11) ◽  
pp. e0259683
Author(s):  
Hyun Seung Yang ◽  
Young Je Choi ◽  
Hee Yong Han ◽  
Hak Su Kim ◽  
So Hyun Park ◽  
...  
Keyword(s):  
Diabetic Retinopathy ◽  
Growth Factor ◽  
Aqueous Humor ◽  
Normal Subjects ◽  
Intercellular Adhesion Molecule ◽  
Diabetic Patients ◽  
Intercellular Adhesion Molecule 1 ◽  
Logistic Analysis ◽  
Group 2 ◽  
Average Serum

Purpose To compare adiponectin (APN) levels in the serum and aqueous humor (AH) and evaluate their association with the development/progression of diabetic retinopathy (DR). Methods Diabetic patients with (group 3; n = 59) and without (group 2; n = 39) DR and age- and sex-matched normal subjects (group 1; n = 35) were compared. Duration of diabetes, body mass index, serum HbA1c, vascular endothelial growth factor (VEGF), APN, pentraxin 3 (PTX3), platelet derived growth factor (PDGF), intercellular adhesion molecule-1 (ICAM-1), and APN were measured and analyzed. Results One hundred and thirty-three participants were included. Compared to patients without diabetes, diabetic patients with DR had significantly elevated average serum APN levels (5.99±3.89 μg/ml versus 3.51±1.44 μg/ml, P = 0.002) and average AH APN levels (10.94±11.74 ng/ml versus 3.65±3.33 ng/ml, P<0.001). Serum APN was significantly correlated with AH APN (R = 0.512, P<0.001) and AH VEGF (R = 0.202, P = 0.020). The log serum APN was significantly correlated with intraocular cytokines, including log APN, log VEGF, log ICAM, log leptin, log PTX3, log PDGF, angiopoietin, C-reactive protein, and interleukins (IL)-5 and IL-10 (P<0.001, P = 0.020, P<0.001, P<0.001, P = 0.001, P<0.001, P = 0.008, P = 0.009, P<0.001, and P = 0.046, respectively). Log serum VEGF showed a significant correlation only with log AH VEGF (P = 0.001). Multivariate logistic analysis was performed to evaluate the association of DR progression and cytokine concentrations; log Serum APN and log AH APN showed good correlation with the DR progression in each model. Conclusions AH APN levels correlated well with DR development and progression. Serum APN could be a better marker for estimating intraocular cytokines, including both intraocular APN and VEGF concentrations in clinical field, than serum VEGF in DR patients.

Immunoreactivity of ICAM-1, MMP-2, and Nesfatin-1 in lens epithelial cells of patients with diabetes mellitus with or without diabetic retinopathy

2020 ◽  
pp. 112067212096655
Author(s):  
Meydan Turan ◽  
Gulay Turan
Keyword(s):  
Diabetes Mellitus ◽  
Diabetic Retinopathy ◽  
Epithelial Cells ◽  
Intercellular Adhesion Molecule ◽  
Lens Epithelial Cells ◽  
Diabetic Patients ◽  
Intercellular Adhesion Molecule 1 ◽  
Patients With Diabetes ◽  
The Mean ◽  
Group 2

Purpose: The aim of this study was to evaluate the immunoreactivity of matrix metalloproteinases-2 (MMP-2), intercellular adhesion molecule-1 (ICAM-1), and nesfatin-1 in cataract lens epithelial cells (LECs) of patients with diabetes mellitus (DM) and to investigate the relationship of these markers with DM cataract and diabetic retinopathy (DR). Materials and methods: Ninety patients were included in the study. The patients were divided into three groups ( n = 30): Group 1 (control; patients without DM or DR); Group 2 (patients with DM only), and Group 3 (patients with both DM and DR). Lens capsule samples were collected during intraoperative cataract surgery. Samples were immunohistochemically stained for MMP-2, ICAM-1, and nesfatin-1 and their immunoreactivity was evaluated. The number of immunoreactive cells was determined with a microscope at ×400 magnification. Results: Increased MMP-2 and ICAM-1 immunoreactivity was detected in the LECs of patients with DM, and especially in patients with DR ( p < 0.001, p < 0.001, respectively). Nesfatin-1 immunoreactivity was significantly lower in LECs of diabetic patients ( p < 0.001). The mean of MMP-2 immunoreactive cells were 7.47 ± 8.18, 22.80 ± 15.70, and 34.80 ± 20.85 in Groups 1, 2, and 3, respectively. The mean of ICAM-1 immunoreactive cells were 17.10 ± 9.83, 38.50 ± 23.55, and 56.93 ± 20.94 in Groups 1, 2, and 3, respectively. Conclusion: Nesfatin-1, MMP-2, and ICAM-1 and could potentially play important roles in the pathogenesis of cataracts in patients with DM.

scholarly journals Correlations Between Different Angiogenic and Inflammatory Factors in Vitreous Fluid of Eyes With Proliferative Diabetic Retinopathy

2021 ◽  
Vol 8 ◽  
Author(s):  
Guanrong Wu ◽  
Baoyi Liu ◽  
Qiaowei Wu ◽  
Changting Tang ◽  
Zijing Du ◽  
...  
Keyword(s):  
Diabetic Retinopathy ◽  
Growth Factor ◽  
Proliferative Diabetic Retinopathy ◽  
Fasting Blood Glucose ◽  
Intercellular Adhesion Molecule ◽  
Inflammatory Factors ◽  
Control Group ◽  
Intercellular Adhesion Molecule 1 ◽  
Vitreous Fluid ◽  
Inflammation Mediators

Purpose: To investigate the expression of various angiogenesis and inflammation mediators in the vitreous fluid of eyes with proliferative diabetic retinopathy (PDR).Methods: A total of 38 eyes with PDR and 37 control eyes were included. Vitreous fluid was collected during vitrectomy. Vitreous levels of colony stimulating factor-1 receptor (CSF-1R), syndecan-1, placental growth factor (PIGF), and angiopoietin-like protein 4 (ANGPTL-4) were measured by multiplex immunoassay. Vitreous levels of vascular endothelial growth factor (VEGF), interleukin-6 (IL-6), interleukin-8 (IL-8), monocyte chemotactic protein-1 (MCP-1), tumor necrosis factor-α (TNF-α), and intercellular adhesion molecule-1 (ICAM-1) were measured by cytometric beads array. Levels of these mediators were compared between the PDR and control eyes. Correlations between levels of different mediators and between these mediators and kidney function metrics in the PDR group were also analyzed.Results: Vitreous levels of syndecan-1, PIGF, ANGPTL-4, VEGF, and IL-8 were significantly higher in the PDR group compared to the control group (all p &lt; 0.05). Levels of VEGF were significantly correlated with levels of syndecan-1, PIGF, and ANGPTL-4 (r = 0.370 to 0.497, all p &lt; 0.05). Significant positive correlations were detected between levels of any two of the following mediators including syndecan-1, PIGF, ANGPTL-4, and IL-8 (r = 0.370 to 0.906, all p &lt; 0.05). Apart from VEGF, levels of these mediators were positively correlated with serum creatinine and blood urea nitrogen (r = 0.328 to 0.638, all p &lt; 0.05), and negatively correlated with fasting blood glucose and estimated glomerular filtration rate (r = −0.325 to −0.603, all p &lt; 0.05).Conclusions: Correlations between different angiogenesis and inflammation mediators were observed in eyes with PDR, suggesting cross-talks of different angiogenesis and inflammation pathways in the pathogenesis of PDR. The levels of angiogenesis and inflammation in PDR are correlated with kidney damage, indicating possible common pathways in diabetic retinopathy and nephropathy.

scholarly journals Axial Myopia, A Protective Factor for Diabetic Retinopathy-Role of Vascular Endothelial Growth Factor

2021 ◽  
Author(s):  
Ashish Kulshrestha ◽  
Nirbhai Singh ◽  
Bruttendu Moharana ◽  
Parul Chawla Gupta ◽  
Jagat Ram ◽  
...  
Keyword(s):  
Vascular Endothelial Growth Factor ◽  
Diabetic Retinopathy ◽  
Growth Factor ◽  
Aqueous Humor ◽  
Axial Length ◽  
Protective Factor ◽  
Diabetic Patients ◽  
Vascular Endothelial ◽  
Treatment Naïve ◽  
Endothelial Growth Factor

Abstract PURPOSE Long axial length is one of the ocular protective factors in development of diabetic retinopathy (DR). In this study we examined the effect of axial length (AL) on aqueous humor vascular endothelial growth factor (VEGF) levels in patients with diabetes mellitus with or without DR. METHODS Forty-eight eyes of 48 participants were divided into three groups of 16 each. Group A consisted of non-diabetic patients, Group B had diabetic patients without DR, and Group C had diabetic patients with treatment-naive non-proliferative DR (NPDR). The groups were further subdivided based on axial lengths i.e., AL ≤ 23.30 mm (A1, B1, C1) and AL > 23.30 mm (A2, B2, C2). Undiluted aqueous humor was obtained during cataract surgery to measure the VEGF levels. RESULTS We observed significant decrease in VEGF concentration in patients with AL ≥ 23.30 mm as compared with AL ≤ 23.30 mm in non-diabetic as well as diabetic patients. As the eye elongates, there is less secretion of VEGF in non-diabetics as well in diabetics with or without DR. CONCLUSION Our findings strengthened the concept that an increase in AL leads to less VEGF in diabetic eyes, thus leading to less severe DR changes.

scholarly journals Serum Fibroblast Growth Factor 21 Levels Are Correlated with the Severity of Diabetic Retinopathy

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Yuan Lin ◽  
Ye-cheng Xiao ◽  
Hong Zhu ◽  
Qing-yan Xu ◽  
Lei Qi ◽  
...  
Keyword(s):  
Diabetic Retinopathy ◽  
Growth Factor ◽  
Fibroblast Growth Factor ◽  
Serum Insulin ◽  
Conditional Logistic Regression ◽  
Fasting Blood Glucose ◽  
Fibroblast Growth Factor 21 ◽  
Diabetic Patients ◽  
Model Assessment ◽  
Fibroblast Growth

The aim of the study was to assess serum fibroblast growth factor 21 (FGF21) concentrations in Chinese type 2 diabetic patients with and without retinopathy and to assess the association between FGF21 and the severity of retinopathy. 117 diabetic patients were compared with 68 healthy controls. Fasting blood glucose, serum total cholesterol, serum triglycerides, serum insulin, and serum FGF21 levels were estimated. FGF21 concentrations in the patients were significantly higher than those in control. In the patient group there was a significant positive correlation between FGF21, insulin level, and homeostasis model assessment index. Serum FGF21 concentrations in patients with proliferative diabetic retinopathy or nonproliferative diabetic retinopathy were significantly higher than those in patients without diabetic retinopathy. When the presence of diabetes was defined as the final variable in the conditional logistic regression model with the FGF21 concentration as the continuous variable, FGF21 was significantly involved in the model. This study shows that the increase in serum concentration of FGF21 was associated with the severity of diabetic retinopathy and suggests that FGF21 may play a role in the pathogenesis of diabetic retinopathy and its degree.

scholarly journals DOES INSULIN LIKE GROWTH FACTOR-1 (IGF-1) DEFICIENCY HAVE A “PROTECTIVE” ROLE IN THE DEVELOPMENT OF DIABETIC RETINOPATHY IN THALASSEMIA MAJOR PATIENTS?

2015 ◽  
Vol 7 ◽  
pp. e2015038 ◽  
Author(s):  
Vincenzo De Sanctis
Keyword(s):  
Diabetic Retinopathy ◽  
Growth Factor ◽  
Cross Sectional Study ◽  
Protective Role ◽  
Dependent Diabetes Mellitus ◽  
Diabetic Patients ◽  
Italian Population ◽  
Sectional Study ◽  
Cross Sectional ◽  
Number Of Patients

Objective: This cross-sectional study was designed to give insights into relationship between Insulin-Growth-Factor 1 (IGF-1) levels and diabetic retinopathy (DR) in a sample of  thalassaemia major(TM) patients with insulin dependent diabetes mellitus (IDDM). Τhis relation was not previously evaluated, despite the fact that both diseases co-exist  in the same patient. The  study   also  describes the clinical and biochemical profile of the associated complications in TM patients with and without IDDM.   Design: A population-based cross-sectional study.  Participants:The study  includes 19 consecutive TM patients with IDDM and 31 age- and sex-matched TM patients without  IDDM who visited our out-patient clinics for an endocrine assessment Methods: An extensive medical history, with data on associated complications and current medications, was obtained. Blood samples were drawn in the morning after an overnight fast to measure the serum concentrations of IGF-1, glucose, fructosamine , free thyroxine (FT4), thyrotropin (TSH) and biochemical analysis . Serologic screening assays for hepatitis C virus seropositivity (HCVab and HCV-RNA) were also evaluated,  applying routine laboratory methods.Plasma total IGF-1 was measured by a chemiluminescent immunometric assay (CLIA) method. Ophthalmology evaluation was done by the same researcher using stereoscopic fundus biomicroscopy through dilated pupils. DR was graded using the scale developed by the Global Diabetic Retinopathy Group. Iron stores were assessed by direct and indirect methods. Results:Eighteen TM patients with IDDM (94.7 %) and 10 non-diabetic patients (32.2 %) had IGF-1 levels below the 2.5th percentile of the normal values for the Italian population. The mean serum IGF-1 concentrations were significantly lower in the diabetic versus the non-diabetic TM groups (p < 0.001). DR was present in in 4 (21 %) of 19 TM patients with IDDM and was associated with the main classical risk factors, namely inefficient glycemic control  and duration of disease but not  hypertension. Using the scale developed by the Global Diabetic Retinopathy Group, the DR in our patients was classified as non proliferative diabetic retinopathy (NPDR). Only few numbers of microaneurysms [1-3] were detected. Our data also confirm the strong association of IDDM in TM patients with other endocrine and non-endocrine complications.Conclusions: These results , although on a small number of patients, suggest a possible ‘protective’ role of low IGF-1 in the development of DR in TM patients 

Intercellular adhesion molecule-1 is a surrogate biomarker for subclinical atherosclerosis in Type 2 diabetes mellitus

2021 ◽  
Vol 15 (2) ◽  
pp. 121-132
Author(s):  
Thallapaneni Sasikala ◽  
Suchitra M Manohar ◽  
Aparna RR Bitla ◽  
S Sarala ◽  
Suresh Vaikkakara
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Type 2 Diabetes Mellitus ◽  
Subclinical Atherosclerosis ◽  
Intima Media Thickness ◽  
Intercellular Adhesion Molecule ◽  
Intercellular Adhesion Molecule 1 ◽  
Group 3 ◽  
Group 2

Aim: We aimed to investigate biomarkers of inflammation, oxidative stress as surrogate markers of subclinical atherosclerosis in patients with Type 2 diabetes mellitus (T2DM). Materials & methods: Subjects were grouped based on carotid intima media thickness (CIMT). Group 1: healthy controls (CIMT <0.57 mm); Group 2: T2DM without subclinical atherosclerosis (CIMT <0.57 mm); Group 3: T2DM with subclinical atherosclerosis (CIMT ≥0.57 mm). Results: Significantly higher MDA, Hs-CRP, Ox-LDL, PTX-3, IL-6, ICAM-1 and lower FRAP, IL-10 levels in T2DM groups compared with controls (p = 0.001). Changes were more significant in Group 3 compared with Group 2. ICAM-1 had the highest sensitivity and specificity at a cut-off value of >40.34 ng/ml compared with Ox-LDL and PTX-3 (p < 0.001). Conclusion: ICAM can be considered as an alternate surrogate biomarker of CIMT.

scholarly journals Soluble Intercellular Adhesion Molecule-1 (sICAM-1) Concentrations in Graves’ Disease Patients Followed Up for Development of Ophthalmopathy

1998 ◽  
Vol 83 (4) ◽  
pp. 1222-1225
Author(s):  
A. De Bellis ◽  
S. Di Martino ◽  
F. Fiordelisi ◽  
V. I. Muccitelli ◽  
A. A. Sinisi ◽  
...  
Keyword(s):  
Adhesion Molecule ◽  
Serum Levels ◽  
Intercellular Adhesion Molecule ◽  
Graves Disease ◽  
Intercellular Adhesion Molecule 1 ◽  
Follow Up Study ◽  
Soluble Intercellular Adhesion Molecule ◽  
Group 2 ◽  
Group 1

It is commonly recognized that a few patients with Graves’ disease (GD) develop an overt ophthalmopathy, although most of them show subclinical extraocular muscle enlargement by appropriate imaging techniques. At present, it is not possible to identify the subgroup of GD patients with subclinical retroorbital connective involvement. Recently, it has been shown that increase of soluble intercellular adhesion molecule-1 (sICAM-1) serum levels is correlated to clinical activity score in active Graves’ ophthalmopathy (GO) patients with or without hyperthyroidism, suggesting that sICAM-1 serum values could reflect the degree of ocular inflammatory activity. The aim of this longitudinal study was to evaluate sICAM-1 serum levels in GD patients without clinical ophthalmopathy and to assess their possible relationship with occurrence of GO. We measured sICAM-1 serum levels in 103 initially hyperthyroid GD patients without clinical ophthalmopathy and in 100 healthy subjects. All patients were treated with methimazole for 2 yr. Sera were collected from all patients before treatment and then monthly for the first 6 months of therapy, every 2 months in the following 6 months, and finally at the end of the follow-up study. Patients developing GO were excluded from the follow-up at the onset of ophthalmopathy. During the follow-up 17 GD patients (16.5%, group 1) developed overt eye involvement (14 as active inflammatory ophthalmopathy and 3 as ophthalmopathy without clinical retroorbital connective inflammation) and 86 (83.5%, group 2) did not. At start of the study, the mean of sICAM-1 serum concentrations did not differ significantly between the 2 groups, but it was significantly higher than in controls in both groups. No significant correlation between serum sICAM-1 concentrations and free thyroid hormone levels was found in the 2 groups of patients. During the follow-up study, a further increase of sICAM-1 serum levels was observed in 12 of the 14 patients (85.7%) of group 1 who developed active inflammatory ophthalmopathy not only at the onset but also before clinical GO appearance. On the contrary, the 3 patients of group 1 that developed ophthalmopathy without clinical retroorbital inflammation did not show any further increase of sICAM-1 levels at every time of follow-up in comparison with the starting values, even if their sICAM-1 levels were always higher than in normal controls. Finally, group 2 patients showed significantly decreased sICAM-1 levels throughout the follow-up period when compared with the starting values, although they were still significantly higher than in controls. These results indicate that a further increase of sICAM-1 serum levels before the onset of clinical ophthalmopathy may be a marker of subclinical retroorbital connective inflammation in GD patients. Therefore, our study suggests that serial determinations of sICAM-1 serum levels could help to identify and trace at the right time those GD patients prone to developing active inflammatory ophthalmopathy.

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