scholarly journals Biomechanics of the corneoscleral shell and hemodynamics of the glaucomatous eye: is there a connection?

2019 ◽  
Vol 12 (1) ◽  
pp. 10-17
Author(s):  
E. N. Iomdina ◽  
O. A. Kiseleva ◽  
A. M. Bessmertny ◽  
D. D. Khoziev ◽  
P. V. Luzhnov ◽  
...  
Keyword(s):  
Open Angle Glaucoma ◽  
Lamina Cribrosa ◽  
Diagnostic Value ◽  
Control Group ◽  
Posterior Displacement ◽  
Deep Imaging ◽  
Advanced Glaucoma ◽  
Group 2 ◽  
Rigidity Coefficient ◽  
Differential Tonometry

Purpose. To find the connection between the parameters of the corneoscleral shell and lamina cribrosa (LC) and hemodynamic parameters of the eyes with primary open angle glaucoma (POAG).Materials and methods. The study involved 111 eyes of 63 patients, including 41 eyes without ophthalmic pathology (control group, mean age M ± SD 66.9 ± 18.2 yrs), 22 eyes with the initial glaucoma stage (group 1, mean age 65.9 ± 11.3 yrs), 31 eyes with the developed glaucoma stage (group 2, mean age 69.2 ± 17.3 yrs), and 17 eyes with the advanced glaucoma stage (group 3, mean age 69,7 ± 7.3 yrs). LC parameters and the density of surface (SVL) and deep (DVL) vascular layers were measured using Spectralis OCT2 with an angiography module (Heidelberg Engineering, Germany) in the enhanced deep imaging (EDI) mode using AngioTool software. Corneal hysteresis (CH) and corneal resistance factor (CRF) were determined using ORA (Ocular Response Analyzer, Reichert, USA). The rigidity coefficient (E) of the corneoscleral shell was measured by a GlauTest-60 tonograph (Russia) operation in the differential tonometry mode. The elasticity coefficient (s) was determined by a modified differential tonometry technique. The rheographic index (RI) and pulse blood volume (PBV) were measured using transpalpebral rheoophthalmography.Results. A statistically significant correlation was revealed between CH and SVL (р = 0.005, r = 0.288), LC thickness and SVL and DVL (р = 0.001, r = 0.374 and р = 0.003, r = 0.397, respectively). A negative statistically significant correlation was found between E and RI (р = 0.000, r = -0.538) as well as between E and PBV (р = 0.001, r = -0.376). A similar correlation was revealed between s and theses parameters (RI and PBV; р = 0.027, r = -0.404 and р = 0.024, r = -0.410, respectively). E increase is accompanied by a decrease in the SVL density (р = 0.000, r = -0.376); besides, PBV is negatively correlated with the LC depth (р = 0.022, r = -0.257).Conclusion. In POAG, deteriorated blood supply of inner ocular shells (decreased RI, PBV, SVL and DVL density) correlates with (a) increased corneoscleral rigidity (manifested in the increase of rigidity and elasticity coefficients, and the decrease of CH), and (b) decreased LC thickness and its increased depth. Increased rigidity of the corneoscleral shell contributes to an LC posterior displacement. It must be concluded that LC thickness is a more sensitive biomechanical parameter that changes even in the initial stages of POAG and has a high diagnostic value.

scholarly journals The Diagnostic Value of Alpha-1-Antitrypsin Phenotype in Patients with Granulomatosis with Polyangiitis

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
M. Y. Pervakova ◽  
V. L. Emanuel ◽  
O. N. Titova ◽  
S. V. Lapin ◽  
V. I. Mazurov ◽  
...  
Keyword(s):  
Granulomatosis With Polyangiitis ◽  
Laboratory Data ◽  
Clinical Information ◽  
Diagnostic Value ◽  
Control Group ◽  
Serum Samples ◽  
Chronic Lung Diseases ◽  
Alpha 1 Antitrypsin Deficiency ◽  
Group 2 ◽  
Alpha 1 Antitrypsin

The deficiency of alpha-1 protease inhibitor, or alpha-1-antitrypsin (A1AT), predisposes to chronic lung diseases and extrapulmonary pathology. Besides classical manifestations, such as pulmonary emphysema and liver disease, alpha-1-antitrypsin deficiency (A1ATD) is also known to be associated with granulomatosis with polyangiitis (GPA or Wegener’s granulomatosis). The aim of our study was to evaluate the frequency of allelic isoforms of A1AT and their clinical significance among GPA patients. Detailed clinical information, including Birmingham Vasculitis Activity Score (BVAS), incidence of lung involvement, anti-proteinase 3 (PR3) antibodies concentrations, and other laboratory data were collected in 38 GPA patients. We also studied serum samples obtained from 46 healthy donors. In all collected samples A1AT phenotyping by isoelectrofocusing (IEF) and turbidimetric A1AT measurement were performed. Abnormal A1AT variants were found in 18.4% (7/38) of cases: 1 ZZ, 4 MZ, 2 MF, and only 1 MZ in control group (2%). The mean A1AT concentration in samples with atypical A1AT phenotypes was significantly lower (P=0.0038) than in normal A1AT phenotype. We found that patients with abnormal A1AT phenotypes had significantly higher vasculitis activity (BVAS) as well as anti-PR3 antibodies concentration. We conclude that A1AT deficiency should be considered in all patients with GPA.

scholarly journals Role of Mean Platelet Volume in Diagnosis of Childhood Acute Appendicitis

2012 ◽  
Vol 2012 ◽  
pp. 1-4 ◽  
Author(s):  
Bunyamin Uyanik ◽  
Cemil Kavalci ◽  
Engin Deniz Arslan ◽  
Fevzi Yilmaz ◽  
Ozgur Aslan ◽  
...  
Keyword(s):  
Acute Appendicitis ◽  
Mean Platelet Volume ◽  
Diagnostic Value ◽  
Control Group ◽  
Healthy Children ◽  
Platelet Volume ◽  
Pediatric Age Group ◽  
Significant Difference ◽  
Group 2 ◽  
Group 1

Introduction. Acute appendicitis is the leading cause of abdominal pain in children requiring emergency surgical intervention. The aim of this study is to investigate the diagnostic value of MPV in early diagnosis of acute appendicitis cases in pediatric age group.Methods. This study was performed retrospectively. Three hundred five patients operated on with the diagnosis of appendicitis and pathologically found to be acute appendicitis were classified as Group 1 and 305 healthy children were classified as control Group 2.Results. One hundred ninety-seven of 305 cases in Group 1 are males (64.6%), in Group 2, 151 of 305 cases are males (49.5%). The mean MPV in Group 1 was7.9±0.9(fL), and whereas in Group 2 was7.7±0.8(fL). There was no statistically significant difference regarding MPV values (P>0.05).Conclusion. In our study we detected that mean platelet volume has no diagnostic value in pediatric acute appendicitis cases.

scholarly journals Regional hemodynamic changes in nodular goiter

2009 ◽  
Vol 55 (1) ◽  
pp. 11-13
Author(s):  
A E Ul'yanova ◽  
L L Yarchenkova
Keyword(s):  
Morphological Structure ◽  
Nodular Goiter ◽  
Diagnostic Value ◽  
Control Group ◽  
Hemodynamic Changes ◽  
Flow Parameters ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

The goal of the present study was to evaluate the clinical and diagnostic value of regional hemodynamic changes in the thyroid vessels and carotid beds in patients with different forms of nodular goiter in order to optimize further follow-up and treatment. The study covered 120patients aged 25 to 40years (mean age 32.82±0.36 years) who had nodular goiter. A control group comprised 30 women comparable by age (mean age 32. 06±0. 44 years), who had a morphologically and functionally unchanged thyroid. After examined, the patients with nodular goiter were divided into group according to the identified morphological forms. Group 1 consisted of25 (20.8%) women (mean age 34.85±0.89 years) with signs of nodular malignancies; Group 2 included 35 (29.2%) patients (mean age 32.08±0.78years) with detected adenomas; Group 3 comprised 40 (33.3%) patients (mean age 33.6±1.08years) with colloidal nodules, and Group consisted 20 (16.7%) women (mean age 32.87±0.9 years) with signs of cysts. The study and comparison of the linear and volume parameters of arterial ducts to the euthyroid loves in nodular pathology were made, by taking into account the site of an abnormal focus and its morphological structure. The linear and volumetric bloodflow rates in the thyroid arteries ipsilaterally to the abnormal nodular of any morphological structure were found to be significantly higher (p < 0.05). Changes were revealed in blood flow parameters in the carotid bed in relation to the morphological structure of nodules.

scholarly journals Volume of Lateral Geniculate Nucleus in Patients with Glaucoma in 7Tesla MRI

2020 ◽  
Vol 9 (8) ◽  
pp. 2382
Author(s):  
Ewa Kosior-Jarecka ◽  
Anna Pankowska ◽  
Piotr Polit ◽  
Andrzej Stępniewski ◽  
Mark Roger Symms ◽  
...  
Keyword(s):  
Visual Field ◽  
Open Angle Glaucoma ◽  
Control Group ◽  
Open Angle ◽  
Early Glaucoma ◽  
Rnfl Thickness ◽  
Lateral Geniculate ◽  
Advanced Glaucoma ◽  
Visual Field Indices ◽  
Glaucoma Group

The aim of the study was to assess the volume of the lateral geniculate nucleus (LGN) in patients with open-angle glaucoma in 7Tesla MRI and to evaluate its relation to RNFL thickness and VF indices. Material and methods. The studied group consisted of 20 open-angle glaucoma patients with bilaterally the same stage of glaucoma (11 with early glaucoma and nine with advanced glaucoma) and nine healthy volunteers from the Department of Diagnostics and Microsurgery of Glaucoma, Medical University of Lublin, Poland. Circumpapillary RNFL-thickness measurements were performed using OCT in all patients and visual fields were performed in the glaucoma group. A 7Tesla MRI was performed to assess the volume of both lateral geniculate bodies. Results. The LGN volume varied significantly between groups from 122.1 ± 14.4 mm3 (right LGN) and 101.6 ± 13.3 mm3 (left LGN) in the control group to 80.2 ± 17.7 mm3 (right LGN) and 71.8 ± 14.2 mm3 (left LGN) in the advanced glaucoma group (right LGN p = 0.003, left LGN p = 0.018). However, volume values from early glaucoma: right LGN = 120.2 ± 26.5 mm3 and left LGN = 103.2 ± 28.0 mm3 differed significantly only from values from the advanced group (right LGN p = 0.006, left LGN p = 0.012), but not from controls (right LGN p = 0.998, left LGN p = 0.986). There were no significant correlations between visual field indices (MD (mean deviation) and VFI (visual field index)) and LGN volumes in both glaucoma groups. Significant correlations between mean RNFL (retinal nerve fiber layers) thickness and corresponding and contralateral LGN were observed for the control group (corresponding LGN: p = 0.064; contralateral LGN: p = 0.031) and early glaucoma (corresponding LGN: p = 0.017; contralateral LGN: p = 0.008), but not advanced glaucoma (corresponding LGN: p = 0.496; contralateral LGN: p = 0.258). Conclusions. The LGN volume decreases in the course of glaucoma. These changes are correlated with RNFL thickness in early stages of glaucoma and are not correlated with visual field indices.

P6434Evaluation of the nociceptive flexor reflex, as a new method for the diagnosis of microvascular angina

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
V B Petrova ◽  
S A Boldueva ◽  
I A Leonova ◽  
A B Petrova
Keyword(s):  
Pain Threshold ◽  
High Sensitivity ◽  
Diagnostic Value ◽  
Control Group ◽  
Flexor Reflex ◽  
Microvascular Angina ◽  
Reflex Threshold ◽  
Nociceptive Flexor Reflex ◽  
Group 2 ◽  
Group 1

Abstract The purpose of this study was to study the diagnostic value of the nociceptive flexor reflex (NFR) method in patients with microvascular angina. Materials and methods The study included 49 patients with MVA (main group), 40 patients with classical angina II-III f.c. (comparison group 1), 42 patients with silent myocardial ischemia (comparison group 2) and 32 healthy volunteers (control group). Criteria for inclusion in the group with MVA: chest pain, positive stress test, unchanged coronary arteries according to coronary angiography, the presence of myocardial perfusion disturbance and reduction of the coronary reserve according to positiron-emission tomography of the myocardium at rest, with adenosine and cold one test. Chest pain syndrome was observed in all 49 patients. All subjects studied the functional activity of nociceptive and antinociceptive systems using the nociceptive flexor reflex method on the equipment of expert class electromyography system, the pain threshold (Pb) values, the reflex threshold (Pr) were calculated and the ratio of pain and reflex threshold was calculated to calculate the pain threshold / threshold reflex (Pb/Pr), which in healthy people is about 0.9–1.0. Results and discussion In te study of NFR in patients with MVA in the group as a whole, a decrease in the pain threshold, reflex threshold and Pb/Pr ratio compared with normal values were found. The pain threshold in patients in the group was lower (statistically significantly) when compared with the group 1, the group 2 and the control group (p<0.0001; p<0.0001; p<0.0001, respectively). The reflex threshold in patients of the MCC group was also significantly lower when compared with the group 1, the group 2 and the control group (p<0.001; p<0.0001; p<0.001, respectively). Due to the fact that the low pain threshold was found in 84.4% of the examined patients with MVA who had microvascular dysfunction according to positron-emission tomography, we evaluated the prognostic value of the NFR method for diagnosing the disease. To do this, an assessment was made of the odds ratio (OR) of identifying MVA in groups of patients with different levels of index K (the ratio of the pain threshold value to the reflex threshold value). We have chosen the value of index K with the highest specificity and high sensitivity equal to 0.8892. Based on the data obtained, the diagnostic value of the NFR method was calculated during the verification of the MVA. When conducting a mathematical analysis, it was found that this technique has high sensitivity (84.4%), specificity (95.12%), positive (90.48%) and negative predictive value (91.76%). We have not found information in the literature on the use of the NFR assessment method and its diagnostic value in MVA. Findings Due to the high diagnostic value of determining the NFR, we propose to include this method in the MVA diagnostic algorithm as an additional one.

Clinical efficacy of osteopathic correction in the complex treatment of patients with unoperated open-angle glaucoma

2020 ◽  
pp. 97-105
Author(s):  
E. N. Simakova ◽  
O. V. Stenkova
Keyword(s):  
Intraocular Pressure ◽  
Drug Therapy ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Randomized Study ◽  
Main Group ◽  
Control Group ◽  
Open Angle ◽  
Complex Treatment ◽  
Hypotensive Drug

Introduction. Glaucoma is one of the most significant eye diseases. It is often diagnosed, not always amenable to therapy, and can lead to a complete loss of visual functions. In recent years, the method of osteopathic correction has become widespread as one of the effective methods of treatment and rehabilitation of patients with pathologies of various body systems. In the pathogenesis of glaucoma, it is customary to distinguish a dystrophic concept, which considers primary open-angle glaucoma as a result of dystrophic changes in the connective tissue, as well as in the endothelial lining of the trabeculae and Schlemm′s canal, especially destructive changes in mitochondria and the alteration of their functional activity. A vascular concept is also distinguished. According to this concept, the central link in the pathogenesis of glaucoma is circulatory disorder in the ciliary vessels, ocular artery, and major vessels of the head and neck, it can be assumed that osteopathic correction in the treatment of patients with open-angle glaucoma will be pathogenetically substantiated and will have a positive effect on intraocular pressure and trophicity of the optic nerve. The goal of research — to study the influence of in osteopathic correction on the nature of unoperated glaucoma (stage IIA) and to substantiate the possibility of using osteopathic correction in the complex treatment of patients with this pathology.Materials and methods. A prospective controlled randomized study was conducted at 52 city polyclinics, branch 3, Moscow, from January 2018 to January 2019. 40 patients (70 eyes) aged 50 to 75 years with primary open-angle glaucoma IIA stage were examined. At this stage of the disease, patients most often seek medical care and the issue of conservative management is primarily considered. All patients were divided into two groups of 20 people: the main group and the control group. The treatment in the main group included hypotensive drug therapy and osteopathic correction. Patients of the control group received only drug therapy. All patients underwent ophthalmic (visometry, tonometry, perimetry) and osteopathic examination twice: before the treatment and after 3 months.Results. For patients with primary open-angle IIA non-operated glaucoma, regional (most often regions of the head, neck, dura mater) and local (abdominal diaphragm, iliac bones, hip and knee joints) somatic dysfunctions were the most typical. In the main group a statistically significant decrease in the frequency and severity of dysfunctions at all levels was stated. Also, in patients receiving osteopathic correction, a significant decrease in the level of intraocular pressure and perimetric indices was noted. In patients of the control group, no reliable changes in these indicators were obtained.Conclusion. The results obtained indicate that osteopathic correction is clinically effective in the complex treatment of patients with primary open-angle II A glaucoma.

Liver, Kidney Function Tests and Oxidative Damage During and after Treatment of Salmonella typhimurium Infection in Experimental Local Rabbits

2018 ◽  
Vol 9 (4) ◽  
Author(s):  
Mustafa Salah Hasan ◽  
Ayman Barzan Abdulgafor ◽  
Maher Saber Owain ◽  
Mohammed Ali Hussein ◽  
Qusay Mohammed Aboud ◽  
...  
Keyword(s):  
Single Dose ◽  
Oxidative Damage ◽  
Salmonella Typhimurium ◽  
Infected Group ◽  
Post Treatment ◽  
Kidney Damage ◽  
Control Group ◽  
Post Inoculation ◽  
Group 5 ◽  
Group 2

This study aimed to evaluate the liver, kidney damage caused by S. typhimurium and to estimate the oxidative damage in association with this bacteria. A highly virulent isolates of S. typhimurium were obtained from the department of internal and preventive medicine/ College of Veterinary Medicine/ University of Baghdad. A twenty five local rabbits of both genders with age range (2-4 months) weeks old were used for this study, the rabbits were divided randomly into five groups each group contains 5 rabbits :- group 1: drenched orally with 5 ml of normal saline and consider as control group, group 2: were drenched orally with (5 ml) suspension which contain (5��109 CFU) of Salmonella typhimurium and regarded as infected group, group 3 were drenched orally with (5 ml) suspension which have (5��109 CFU) of Salmonella typhimurium then treated with a single dose of gentamicin alone at 0.05ml/kg (5mg/ml) orally after presence of signs (after 24hrs. post inoculation), group 4 were drenched (5 ml) suspension having (5��109 CFU) of Salmonella typhimurium then treated with a single dose of Ca-EDTA alone at 40mg/kg orally after presence of signs (after 24hrs. post inoculation) and group 5 were drenched (5 ml) suspension that contain (5��109 CFU) of Salmonella typhimurium then treated with a single dose of combined gentamicin at 0.05ml/kg (5mg/ml) orally after presence of signs (after 24hrs. post inoculation) and Ca-EDTA 40mg/kg after presence of signs (after 24hrs. post inoculation).The results of biochemical profile showed a significant increase (p less than 0.05) in ALT, creatinine and urea levels in infected group as compared with control group, while, the treated groups especially group 5 showed a significant improvement in ALT, Urea and creatinine levels which returned to relative normal levels as compared with infected group after 96hrs. post treatment. Also, the results of oxidative stress showed a significant increase in the levels of MDA in G2, G3, G4 and G5 after 48 hrs. post treatment, while the level of GSH showed a significant decrease in the level at 48hrs., both were returned to relative normal levels after 96hrs.post treatment especially in group 5.In conclusion, S. typhimurium can causing liver and kidney damage which is manifested by increase ALT, Urea and Creatinine. Also, MDA and GSH is increased due to salmonellosis.

Clinical-Reported Outcomes Of Deferoxamine Versus Deferasirox In The Treatment Of Homozygous BetaThalassemia

2018 ◽  
Vol 9 (SPL1) ◽  
Author(s):  
Zeina A Munim Al-Thanoon ◽  
Zeina A Munim Al-Thanoon ◽  
Mustafa Basil ◽  
Nasih A Al-Kazzaz
Keyword(s):  
Serum Ferritin ◽  
Iron Chelation ◽  
Iron Chelator ◽  
Beta Thalassemia ◽  
Control Group ◽  
Current Standard ◽  
Cross Sectional ◽  
Significant Difference ◽  
Multiple Blood ◽  
Group 2

Iron chelation therapy with deferoxamine (DFO),the current standard for the treatment of iron overload in patients with betathalassemia,requires regular subcutaneous or intravenous infusions. This can lead to reduced quality of life and poor adherence,resulting in increased morbidity and mortality in iron-overloaded patients with beta-thalassemia. Deferasirox (DFX) is an orally administered iron chelator that has been approved for use in many countries. The requirement of an effective,well tolerated iron chelator with a less demanding mode of administration has led to the development of deferasirox. The present study was aimed to compare the satisfaction and compliance with deferoxamine versus deferasirox (Exjade®),a novel oral iron chelator in patients with transfusion - dependent beta- thalassemia. A cross-sectional,single-center investigation study was carried out in the Thalassemia Center of Ibn-Atheer Teaching Hospital in Nineveh province,Iraq. One hundred and eight thalassemic patients aged between 2- 20 years old having received multiple blood transfusions and a serum ferritin greater than 1500 ng/ml. Patients were randomised into two groups. Group 1 received deferoxamine at a dose of 20-50mg/kg/day and group 2 received deferasirox at the dose of 10-30 mg/kg/day. Another 56 apparently healthy volunteers were used as a control group. The assessment of chelation was done during the period between November 2013 and February 2014 by measurement of serum ferritin. Satisfaction and compliance was assessed by using a special questionnaire prepared by the researcher. Out of the 108 thalassemic patients enrolled there was no discontinuation in treatment with the two drugs under study. The serum ferritin did not change significantly in any of the chelation groups. In comparison with the patients who were treated with DFO,those receiving DFX reported a significantly higher rate of compliance and satisfaction (P < 0.05). However,no significant difference was observed between the two groups regarding their satisfaction (P > 0.05).Compliance with deferasirox (50 %) was more than that with deferoxamine (20 %). Satisfaction with deferoxamine was significantly lower than deferasirox (p= 0.00).

Antiurolithiatic effect of Cymbopogon Proximus, Alhagi Maurorum, on Sulfadimidine induced urolithiasis in male New Zealand rabbits

2019 ◽  
Vol 20 (1) ◽  
pp. 12-18
Author(s):  
Sameh El-Nabtity
Keyword(s):  
New Zealand ◽  
Intramuscular Injection ◽  
Negative Control Group ◽  
Negative Control ◽  
Control Group ◽  
Aqueous Extracts ◽  
Blood And Urine Samples ◽  
Group 2 ◽  
New Zealand Rabbits ◽  
Group 1

The present study aimed to investigate the prophylactic effect of Cymbopogon proximus and Alhagi maurorum on Sulfadimidine induced urolithiasis in rabbits . Thirty New Zealand male rabbits were allocated into six equal groups (each of five): Group (1) was used as a negative control. Group(2) were administered sulfadimidine (200mg/kg) by intramuscular injection.Groups(3) and (4) were administered sulfadimidine(200mg/kg) by intramuscular injection and 330mg/kg of Cymbopogon proximus alcoholic and aqueous extracts respectively orally.Groups(5) and (6) were administered sulfadimidine(200mg/kg) by intramuscular injection and 400mg/kg of Alhagi maurorum alcoholic and aqueous extracts respectively orally. The period of experiment was 10 days. Blood and urine samples were collected from rabbits on the 10th day. The results recorded a significant decrease in serum creatinine, urea, uric acid and crystalluria in Cymbopogon proximus and Alhagi maurorum groups compared to sulfadimidine treated group.We conclude that Cymbopogon proximus and Alhagi maurorum have a nephroprotective and antiurolithiatic effects against sulfadimidine induced crystalluria.

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