scholarly journals Levels of fibroblast growth factor and sulfated glycosoaminoglycans in connective tissue metabolism in patients with mitral valve prolapse and type 1 diabetes mellitus

2021 ◽  
Vol 2021 (1) ◽  
pp. 83-87
Author(s):  
O.Ye. Nikolenko ◽  
◽  
S.B. Pavlov ◽  
O.M. Korzh ◽  
◽  
...  

In order to study the influence of the main fibroblast growth factor on the indicators of the state of the main substance of the extracellular matrix, a comparative analysis of their levels in the blood serum was carried out in persons with mitral valve prolapse and type 1 diabetes mellitus. The data obtained showed that the highest level of FGF-2 was observed in patients with a combination of MVP and type 1 diabetes mellitus compared with isolated MVP and diabetes, the control group (p <0.01) Level II of the GAG ​​fraction, which is represented in the main substance of the extracellular the matrix of the heart valve apparatus was also the highest in comorbid pathology, significantly differing from the control group (p <0.05). The level of GAG fraction III was higher among diabetic patients, regardless of the presence or absence of MVP, which is associated with the localization of this GAG fraction in the basement membranes of blood vessels and may be one of the elements of the pathogenesis of diabetic angiopathy

2021 ◽  
pp. 9-15
Author(s):  
Olena Nikolenko ◽  
Oleksiy Korzh

The aim. The aim of the study was to conduct a comparative analysis of fibroblast growth factor-2, the total content and fractions of sulfated glycosoaminoglycans as well as free and peptide-bounding oxyproline as the markers of connective tissue metabolism in young patients with mitral valve prolapse, type 1 diabetes mellitus and the combination of both indications. Materials and methods. 93 patients between 19 and 33 years old with either mitral valve prolapse, or type 1 diabetes or the combination of both indications were examined. Group 1 was represented by 36 patients with the monomorbid type 1 diabetes mellitus. Group 2 consisted of 33 patients with type 1 diabetes mellitus and mitral valve prolapse. The comparison group included 24 people with diagnosed mitral valve prolapse. The concentration of fibroblast growth factor-2 in blood plasma was determined by the enzyme immunoassay using a Quantikine reagent kit (Human FGF basic Immunoassay), manufactured by R&D Systems, Inc. (USA) and expressed in pg/ml. The total content and fractions of glycosaminoglycans in blood serum were determined by the method of N. G. Stern et al. and expressed in units of optical density. The level of free and peptide-bounding oxyproline in blood serum were determined by the method of P. N. Sharaev and expressed in µmol/L. Results. Fibroblast growth factor-2 was higher in group 2, where it was 23.7±0.25 pg/ml compared to the control group – 14.20±0.22 pg/ml (p <0.01). There was also a significant difference in the levels of fibroblast growth factor-2 between groups 1 where it equaled 15.33±0.24 pg/ml and 2 – 23.71±0.25 pg/ml (p<0.01). The total content of glycosaminoglycans in comparison with the control group, where it was equal to 9.7±0.62 odu, was higher in all groups of patients: in group 1 it was 12.07±1.04 odu, in the comparison group it was 11.75±0.83 odu, in the group with the combined pathology it was 13.32±1.59 odu (p<0.05). The values of glycosaminoglycans II fraction, were higher in group 2 – 4.96±0.59 odu. The level of peptide-bound oxyproline, just as the level of free oxyproline, significantly increased in patients with comorbid pathology in group 2, compared to the control group: 16.06±1.54 µmol/l versus 8.7±0.81 µmol/l (p<0.01) respectively. Conclusions. The values of fibroblast growth factor-2, glycosaminoglycans II fraction, free and peptide-bound oxyproline were significantly higher in patients with diabetes mellitus and mitral valve prolapse in comparison with the control group. Fibroblast growth factor-2 was higher in patients with comorbid pathology compared to the monomorbid diabetes patients.


Summary. Mitral valve prolapse is a significant cardiovascular risk factor in young adults. Its combination with type 1 diabetes mellitus can influence the nature and development of the disease. Objective – a comparative analysis of free and peptide-bound oxyproline levels and basic echocardiographic parameters (ECP) in patients with mitral valve prolapse, type 1 diabetes and their combination. Materials and methods – 93 people aged 19–33 years were examined, including 24 people with mitral valve prolapse without concomitant pathology; 33 patients with mitral valve prolapse and type 1 diabetes; 36 patients with type 1 diabetes without mitral valve prolapse. Results. The level of free and peptide-bound oxyproline in blood serum and their ratio were assessed as a marker of collagen metabolism. The levels of free oxyproline were significantly higher only for the group of MVP patients with type 1 diabetes (p < 0.05) compared to the control group. Severity of destructive processes was demonstrated by a high level of peptide-bound oxyproline, both in combined pathology compared with control group, and compared with groups of patients with monomorbid diabetes and MVP (p < 0.05). In patients with mitral valve prolapse and type 1 diabetes for more than 10 years in anamnesis were found significant differences in the echocardiography parameters (ventricular septum thickness, posterior wall of the left ventricle thickness) compared with the subgroup of patients with less than 10 years of type 1 diabetes in anamnesis and the group with isolated mitral valve prolapse. Conclusions. The data obtained indicate an aggravation in collagen metabolism disorders in patients with mitral valve prolapse depending on the duration of type 1 diabetes, and demonstrate the effect of carbohydrate metabolism disorders on the risk of developing connective tissue degradation of the heart valve apparatus.


Open Medicine ◽  
2009 ◽  
Vol 4 (4) ◽  
pp. 415-422
Author(s):  
Kamile Gul ◽  
Ihsan Ustun ◽  
Yusuf Aydin ◽  
Dilek Berker ◽  
Halil Erol ◽  
...  

AbstractThe aim of the study was to determine the frequency and titers of anti-thyroid peroxidase (Anti-TPO), anti-thyroglobulin (Anti-TG), and anti-glutamic acid decarboxylase (Anti-GAD) antibodies in Turkish patients with type 1 diabetes mellitus (DM), and to compare the frequency of anti-TPO and anti-TG titers in the presence or absence of anti-GAD. A total of 104 patients including 56 males and 48 females with type 1 DM and their age-, gender-, and body mass index-matched control group, including 31 males and 27 females, 58 cases in total with an age range of 15-50 years, were recruited into this study. In patients with type 1 DM, positive anti-GAD was detected in 30.8% (n=32). In patients with positive anti-GAD, rate of positive anti-TPO was 37.5%; however, in patients with negative anti-GAD, the rate of positive anti-TPO was 9.7% and the difference was statistically significant (p=0.001). In patients with positive anti-GAD, the rate of positive anti-TG was 18.8%. In patients with negative anti-GAD, the rate of positive anti-TG was 2.8%, and the difference between them was statistically significant (p=0.005). In patients with positive and negative anti-GAD, rates of both positive anti-TPO and anti-TG were 15.6% and 1.4%, respectively, with the difference showing statistical significance (p=0.004). Thyroid autoimmunity in type 1 DM patients with positive anti-GAD was apparently higher; therefore, these patients should be followed more frequently and carefully.


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