Corneal Sensitivity in Bacterial Keratitis Patients with or without Diabetes Mellitus

Author(s):  
O. V. Zavoloka

The aim. To identify the features of corneal sensitivity of the sick and the fellow eye in bacterial keratitis patients with or without diabetes mellitus. Materials and methods. The analysis was performed on the basis of survey data of 62 type 1 diabetes patients with bacterial keratitis and 43 nondiabetic control patients with bacterial keratitis. The examination was performed at the first visit. In addition to standard ophthalmic examination, the patients underwent fluorescein test, OCT of the anterior segment of the eye, non-contact corneal aesthesiometry. Results and discussion. The average corneal sensitivity threshold in diabetic patients with bacterial keratitis at the first visit at all air flow temperatures exceeded the corresponding indicators in nondiabetic patients of the control group: by 33.5% at an air temperature of 5 °C, by 30.6% at 15 °C, by 28.8% at 20 °C, by 27% at 30 °C, and by 26.1% at 40 °C (p<0.05). The average corneal sensitivity threshold at a temperature of 20 °C in the fellow eye in diabetic patients with bacterial keratitis exceeded that in nondiabetic patients with bacterial keratitis of the control group by 32.9 % (p<0.05). Conclusions. Corneal sensitivity of the sick and fellow eye in patients with bacterial keratitis depends on the presence of diabetes mellitus. The average threshold of corneal sensitivity of the sick and fellow eye in diabetic patients with bacterial keratitis at the first visit exceeds the corresponding values in nondiabetic patients with bacterial keratitis. Keywords: diabetes mellitus, bacterial keratitis, corneal sensitivity.

2021 ◽  
Vol 1 (7(71)) ◽  
pp. 25-29
Author(s):  
Z. Olesia

The purpose was to define the clinical peculiarities of bacterial keratitis in patients with type 1 diabetes mellitus (DM1) at visit 1.  Methods. We retrospectively reviewed the results of 62 DM1 patients (62 eyes) with bacterial keratitis and 43 nondiabetic patients (43 eyes) with bacterial keratitis of the control group who were referred for visit 1 (before administering the treatment). Research methods were as follows: visual acuity, tonometry, slit-lamp biomicroscopy of anterior and posterior eye segments, bacteriological studies, fluorescein dye test, anterior eye OCT and non-contact corneal esthesiometry.  Results. Compared to nondiabetic, DM1 patients with bacterial keratitis showed higher degree of inflammatory reaction in the anterior chamber of the eye at visit 1 (p<0.05) as well as 28.8% lower mean corneal sensitivity threshold (p<0.05). At visit 1, the degree of decreasing of corneal sensitivity in DM1 patients with bacterial keratitis was higher than in control group (p<0.05). Localization of bacterial keratitis, the degree of pericorneal injection, corneal ulcer defect size and depth, corneal infiltration as well as edema of the corneal tissue surrounding the ulcer did not depend on the presence of diabetes mellitus (р>0,05) at visit 1. Conclusions. There are clinical peculiarities of bacterial keratitis in patients with type 1 diabetes mellitus at visit 1.  


2021 ◽  
Author(s):  
Olesia Zavoloka

Abstract The purpose was to define the clinical peculiarities of bacterial keratitis in patients with type 1 diabetes mellitus (DM1) at visit 1. Methods. We retrospectively reviewed the results of 62 DM1 patients (62 eyes) with bacterial keratitis and 43 nondiabetic patients (43 eyes) with bacterial keratitis of the control group who were referred for visit 1 (before administering the treatment). Research methods were as follows: visual acuity, tonometry, slit-lamp biomicroscopy of anterior and posterior eye segments, bacteriological studies, fluorescein dye test, anterior eye OCT and non-contact corneal esthesiometry. Results. Compared to nondiabetic, DM1 patients with bacterial keratitis showed higher degree of inflammatory reaction in the anterior chamber of the eye at visit 1 (p<0.05) as well as 28.8% lower mean corneal sensitivity threshold (p<0.05). At visit 1, the degree of decreasing of corneal sensitivity in DM1 patients with bacterial keratitis was higher than in control group (p<0.05). Localization of bacterial keratitis, the degree of pericorneal injection, corneal ulcer defect size and depth, corneal infiltration as well as edema of the corneal tissue surrounding the ulcer did not depend on the presence of diabetes mellitus (р>0,05) at visit 1.Conclusions. There are clinical peculiarities of bacterial keratitis in patients with type 1 diabetes mellitus at visit 1.


2021 ◽  
pp. 15-20
Author(s):  
O. V. Zavoloka

Summary. Diabetes mellitus (DM) is a risk factor for severe bacterial keratitis, which often leads to complications. The aim was to identify the features of the dynamics of the I degree of severity bacterial keratitis in diabetic patients. Materials and methods. The results of treatment of 15 patients with type 1 DM and bacterial keratitis of the I degree of severity (main group) and 20 patients with bacterial keratitis of the I degree of severity without DM (control group) were analyzed. The severity of bacterial keratitis was determined according to our proposed scheme with a total score of ≤ 14. All patients were treated with instillations of ofloxacin, antiseptics, antioxidants, reparents, artificial tears, mydriatics, systemic anti-inflammatory therapy. In addition to standard, ophthalmic examination methods included bacteriological examination, fluorescein test, OCT of the anterior segment of the eye, non-contact corneal esthesiometry. Results and discussion. In diabetic patients with bacterial keratitis of the I degree of severity the degree of inflammatory reaction in the anterior chamber of the eye and the average threshold of corneal sensitivity at all airflow temperatures at the first visit exceeded the indicators of controls (p<0.05). The degree of the average corneal sensitivity threshold decrease throughout the observation, the degree of pericorneal injection, the size of the corneal ulcer, the depth of corneal infiltration from the 3rd day of observation, the depth of corneal ulcer and corneal edema from the 7th day exceeded indicators of controls (p<0.05). Conclusions. Diabetic patients have features of the dynamics of the I degree of severity bacterial keratitis, which lead to prolongation of the disease and worsening of its consequences.


2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Beata Urban ◽  
Dorota Raczyńska ◽  
Alina Bakunowicz-Łazarczyk ◽  
Krystyna Raczyńska ◽  
Małgorzata Krętowska

Purpose. To evaluate the systemic and local factors that contribute to the damage of endothelial cells in diabetic patients and to compare the endothelial structure of the cornea in diabetic and nondiabetic patients.Materials and Methods. The endothelial cell density (ECD) and central corneal thickness (CCT) were investigated in 123 eyes of type 1 diabetic patients and in 124 eyes of nondiabetic patients. The mean diabetic patients age was 15.34 ± 3.06 years versus 14.58 ± 2.01 years in the control group. The mean duration of diabetes was 8.02 ± 3.9 years. The corneal endothelium was imaged by the Topcon SP-2000P.Results. The mean ECD in diabetic eyes was 2435.55 ± 443.43 cells/mm2and was significantly lower than in control group (2970.75 ± 270.1 cells/mm2). The mean CCT was 0.55 ± 0.03 mm in diabetic group versus 0.53 ± 0.033 mm in control group. ECD and CCT significantly correlated only with duration of diabetes. There was no correlation between ECD and CCT and patient age, sex, HbA1C level, and plasma creatinine level.Conclusions. ECD is decreased and CCT is increased in children and adolescents with diabetes mellitus. Duration of diabetes is the factor that affects ECD and CCT.


2019 ◽  
Vol 32 (12) ◽  
pp. 1341-1350 ◽  
Author(s):  
Junghwan Suh ◽  
Han Saem Choi ◽  
Ahreum Kwon ◽  
Hyun Wook Chae ◽  
Soyong Eom ◽  
...  

Abstract Background Previous studies investigating the beneficial effects of exercise in type 1 diabetes mellitus (T1DM) are relatively insufficient compared to studies on type 2 diabetes mellitus (T2DM), due to the fear of hypoglycemia. Recently, several researchers have reported that combined aerobic and resistance exercise prevents hypoglycemia during and after exercise. Furthermore, exercise has been shown to have beneficial effects on the psychological status of patients with various diseases. The aim of this study was to evaluate the effect of combined aerobic and resistance exercise in adolescents with T1DM. Methods Thirty-five type 1 diabetic patients were enrolled, and subjects were divided into either an exercise group or a control group. Thirty patients (20 patients in the exercise group, 10 patients in the control group) completed the study. The exercise program was performed for 1 h at a time, once a week, for 12 weeks. Study parameters were evaluated at baseline and 3 months after baseline evaluation. Results Combined aerobic and resistance exercise better controlled the body mass index (BMI), and also improved maximum muscular strength and maximum exercise intensity. On psychological tests, subjects’ attention and quality of life showed improving tendency, while their stress and behavioral problems diminished. The number of exercise events increased in the training group, while the daily total insulin dose and glycated hemoglobin (HbA1c) level showed no significant changes. Conclusions A 12-week structured exercise program consisting of aerobic and resistance exercises improves cardiovascular, neurocognitive and psychobehavioral functions, and positively helps lifestyle modification in patients with T1DM.


2021 ◽  
Vol 67 (3) ◽  
pp. 201-203
Author(s):  
Jianjun Li ◽  
Xiaoxiao Li ◽  
Xiaoming Qiao

Type 1 diabetes mellitus, also called insulin-dependent diabetes is associated with elevated blood glucose concentration arising from the inability of the pancreas to produce insulin. Diabetic cardiomyopathy is a major cause of death in diabetic patients. CircRNAs have been reported to participate in various human diseases, including diabetic cardiomyopathy. In this study, the regulation network of circRNA in type 1 diabetes mellitus was investigated. Streptozotocin treatment was implemented to induce type 1 diabetes mellitus in the mouse model, and echocardiography was implemented to detect the heart function of the type 1 diabetes mellitus mouse. Also, the qRT-PCR assay was used to identify the circRNA expression in type 1 diabetes mellitus mouse myocardial tissue. Findings showed that heart function of type 1 diabetes mellitus mouse was significantly damaged than control group mouse and cardiac hypertrophy in type 1 diabetes mellitus mouse, circRNAs were aberrantly regulated in type 1 diabetes mellitus mouse myocardial tissue. The following circRNAs were mmu_circ_0001560, mmu_circ_0001800, mmu_circ_0001801, mmu_circ_0002281 and mmu_circ_0000614 were expressed low in type 1 diabetes mellitus mouse myocardial tissue. In conclusion, type 1 diabetes mellitus caused alterations in the regulation network of circRNAs.


2018 ◽  
Vol 19 (02) ◽  
pp. 270-274
Author(s):  
Shakir Khan ◽  
. Muhammad Javad Yousaf ◽  
Faizania Shabbir ◽  
Tausif Ahmed Rajput

Objectives: Inflammation is the one of the major causes for development of type 2diabetes mellitus and its complications. In this study, association between inflammation and type2 diabetes mellitus was studied by measuring various inflammatory markers (soluble vascularcell adhesion molecules type – 1, Interleukin – 6 and C- reactive protein) between healthy anddiabetic patients. Study Design: A cross sectional comparative study. Place and Duration ofStudy: The study was conducted at Department of Biochemistry & Molecular Biology, ArmyMedical College, Rawalpindi in collaboration with Combined Military Hospital, Rawalpindi andCentre for Research in Experimental and Applied Medicine (CREAM), Army Medical College,Rawalpindi for blood sampling and biochemical assays respectively. Material and Methods:The study was performed in 40 human subjects divided into two groups containing 20 subjectseach. One group was designated as control while the other was diseased (diabetic) group.Glycemic status was measured to confirm their normal and diabetic state. Inflammatory markerswere measured by Enzyme Linked Immunosorbent Assay (ELISA). Results: Levels of allinflammatory markers (soluble vascular cell adhesion molecules type – 1, Interleukin – 6 and Creactiveprotein) were found to be raised in the experimental diabetic groups; 1991.5 ± 201.97ng/ml, 24.99 ± 1.366 pg/ml and 2931 ± 168.319 respectively compared to the control group;570.2 ± 16.526 ng/ml, 6.64 ± 0.3516 pg/ml and 1806.6 ± 183.32 respectively. Conclusions:Inflammatory markers were significantly elevated in patients with diabetes mellitus as comparedto normal healthy control subjects.


2015 ◽  
Vol 1 (1) ◽  
pp. 12-22 ◽  
Author(s):  
Petra Gulácsi-Bárdos ◽  
Éva Nieszner ◽  
Emese Tóth-Zsámboki ◽  
Katarína Vargová ◽  
Sarolta Leé ◽  
...  

Abstract Objective: We examined the vascular system, from the microvasculature to the aorta, in diabetes mellitus, using non-invasive methods. Methods: We enrolled patients with type 1 diabetes: 17 patients without complications (DMW) and 19 patients with clinically manifest complications (DMC). Control group was represented by 34 healthy volunteers (C). We examined microvascular function with laser-Doppler flowmetry, using post-occlusive reactive hyperemia test and local heating. Arterial stiffness was studied by arteriograph, determining augmentation index and pulse wave velocity. We measured serum levels of sE-selectin and sICAM-1, markers of endothelial dysfunction. Results: Microvascular reactivity was significantly reduced in DMC-, and tendentiously in DMW groups. sE-selectin level was significantly higher in DMC group than in controls. Arterial stiffness was the highest in the DMC group and the lowest in the DMW group. Heart rate was significantly higher in both diabetic groups compared to controls. Time to maximum flow during PORH test tended to be the shortest in DMW group. Conclusions: Our results confirm impairment of the microvascular system in diabetic patients, even in early, uncomplicated stage of the disease, and might demonstrate diffuse hyperkinesis in the vascular system, resulting from the insulin effect or refering to the “vasodilation phase” of diabetes mellitus.


2021 ◽  
Vol 9 (1) ◽  
pp. 10-13
Author(s):  
O.V. Zavoloka

Background. The purpose was to study etiological features of bacterial keratitis in patients with type 1 diabetes mellitus. Materials and methods. The analysis was performed on the basis of survey data of 62 patients with bacterial keratitis and type 1 diabetes mellitus and 43 individuals with bacterial keratitis without diabetes mellitus of the corresponding age (control group). In addition to standard ones, ophthalmic methods included fluorescein test, anterior segment optical coherence tomography, non-contact corneal aesthesiometry, bacteriological examination: culture from the conjunctival cavity to dense nutrient media (5% blood agar and me­dium for sterility control), microscopic examination of conjunctival smear with Romanowsky-Giemsa and Pappenheim stain. Results. Etiological features of bacterial keratitis were found in patients with diabetes mellitus: Gram-positive microflora was the causative agent 1.5 times more often, and Gram-negative — 3.1 times less often than in patients without diabetes mellitus from the control group (p < 0.05). In addition, Staphylococcus epidermidis was the causative agent of bacterial keratitis in patients with diabetes mellitus 1.9 times more often, and Pseudomonas aeruginosa — 6.3 times less often than in patients of the control group (p < 0.05). Conclusions. There are etiological features of bacterial keratitis in patients with diabetes mellitus, namely predominance of the Gram-positive microflora among the pathogens due to Staphylococcus epidermidis.


2012 ◽  
Vol 58 (4) ◽  
pp. 14-17
Author(s):  
O I Kopylova ◽  
T L Kuraeva ◽  
E Iu Lavrikova ◽  
E V Titovich ◽  
A G Nikitin ◽  
...  

The risk of devolvement of type 1 diabetes mellitus (DM1) remains a challenging problem because neither etiology of the disease nor its prognosis and genetic predisposition to this condition are clearly understood. The development of any autoimmune process starts from the disturbance of subtle molecular mechanisms involved in the regulation of the immune system. Therefore, the genes controlling the function of its major components are at the same time the potential candidate genes encoding for the predisposition to DM1. Their association with the disease was studied by means of comparative analysis of the frequency distribution of alleles and genotypes of the polymorphous rs3087243 (G6230A) marker of the CTLA4 gene encoding for antigen-4 of cytotoxic T-lymphocytes. The present study included 257 patients presenting with type 1 diabetes mellitus and 526 healthy subjects. Genotypes were identified by the "real time" amplification technique. The AA genotype was found to occur less frequently in the diabetic patients than in the control group (11.3% and 22.1% respectively). In contrast, the frequency of the GG genotype was higher in the patients with DM1 than in the healthy subjects (44.7% and 37.5% respectively). It is concluded that the polymorphous rs3087243 marker of the CTLA4 gene is significantly associated with the predisposition to the development of type 1 diabetes mellitus in the patients of Russian descent.


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