scholarly journals Influence of infiltrate density in the interstitium on the prognosis of primary glomerulonephritis

2019 ◽  
Vol 76 (2) ◽  
pp. 161-167
Author(s):  
Dusan Bozic ◽  
Violeta Knezevic ◽  
Gordana Strazmester-Majstorovic ◽  
Lada Petrovic ◽  
Dejan Celic ◽  
...  
Keyword(s):  
Renal Failure ◽  
Control Group ◽  
Numerical Density ◽  
Laboratory Procedure ◽  
Primary Glomerulonephritis ◽  
Prognostic Predictor ◽  
Clinical Center ◽  
Renal Changes ◽  
Progression Of Renal Failure ◽  
Volume Unit

Background/Aim. Development of inflammatory changes, fibrosis and loss of morphological structures of the interstitium have an important role in pathogenesis of primary glomerulonephritis, affecting the development, course and prognosis of the disease. The aim of this study was to determine the influence of changes in the interstitium on the prognosis of primary glomerulonephritis. Methods. The research included 216 patients suffering from different types of primary glumeronephritis treated at the Clinic for Nephrology and Clinical Immunology of the Clinical Center of Vojvodina, Serbia who were being monitored on average for 77.5 months. After determining on pathohistological diagnosis of the type of glomerulonephritis, renal changes in the interstitium were quantified. Numerical density in the tissue volume unit and structure of infiltrates of the interstitium were established by using the Weibel system (M42) incorporated into light microscope. Routine analyses were performed by using standard laboratory procedure. Results. During the research period the highest numerical density of infiltrates was verified in extracapillary glomerulonephritis (147,869 ? mm-3), slightly less in membranoproliferative glomerulonephritis (116,800 ? mm-3) and focal segmental glomerulosclerosis (96,147 ? mm-3), and the least being in glomerulonephritis with minimal changes (11,416 ? mm-3). In all types of glomerulonephritis, apart from glomerulonephritis with minimal changes, there was a significantly (p < 0.0005) higher numerical density and incidence of infiltrate cells in relation to the control group. By comparing the numerical density of infiltrates of all cells to the parameters of renal function, a significant (p < 0.01) correlation of these phenomena was established. In order to get a better insight into the speed of progression of renal failure by setting a numerical limit of the density of infiltrates < 100,000 / > 100,000 cells/mm3, regardless of the type of glomerulonephritis, a prognostic predictor was established on the basis of which the patients with lower infiltration of the interstitium had significantly (p < 0.005) lower progression of renal failure. Conclusion. Density of infiltrates in the interstitium in primary glomerulonephritis is an important early prognostic predictor of progression of renal failure.

Morphometric analysis of peroxisomes in hepatocytes of alcohol-fed rats

1989 ◽  
Vol 47 ◽  
pp. 1100-1101
Author(s):  
D.C. Dominguez ◽  
J.T. Ellzey
Keyword(s):  
Caloric Intake ◽  
Volume Density ◽  
Controlled Study ◽  
Control Group ◽  
Numerical Density ◽  
Cacodylate Buffer ◽  
Paired Control ◽  
Experimental Group ◽  
Liver Peroxisomes ◽  
Single Lesion

Peroxisomes which participate in 1ipid metabolism have been shown to be altered in several metabolic disorders and toxic conditions. In alcoholic liver disease, the single lesion most frequently found is lipid accumu1ation in hepatocytes. However, the mechanisms for this 1ipid accumu1ation are not clear. The occurrence of modifications of liver peroxisomes due to excess alcohol consumption has not been subjected to a controlled study. We utilized a combination of cytochemica1 and morphometrictechniques to study the size and number of liver peroxisomes in rats fed an alcohol-supplemented diet compared to those of matched-paired control animals.Male Sprague-Daw1ey rats (400-500 g) received a liquid diet. The experimental group (N = 5/group) was fed a diet containing 30% ethanol-derived calories (EDC) and the control group was fed an isocaloric diet to 30% EDC. A pair feeding procedure was employed to control for caloric intake. Small pieces of liver randomly selected, were fixed in 2.3% -glutaraldehyde in 0.1 M sodium cacodylate buffer, pH 7.2, incubated in a DAB medium and postfixed with. 2% aqueous osmium tetroxide. EM photographs were taken from sections of 3 tissue blocks from each sample (7,200X) with a Zeiss EM10-A (60 kV). With the use of a point counting method and a digital planimeter the volume density (Vv) and numerical density (Nv) were determined.

ESTIMATING EFFECTS OF SYSTEMATIC TREATMENT ON RENAL FAILURE AND DEATH WITHOUT A PARALLEL PLACEBO CONTROL GROUP

Nephrology ◽  
2000 ◽  
Vol 5 (3) ◽  
pp. A97-A97
Author(s):  
Hoy We ◽  
Baker P ◽  
Wang Z ◽  
Cass A ◽  
Mathews Jd ◽  
...  
Keyword(s):  
Renal Failure ◽  
Control Group ◽  
Placebo Control ◽  
Systematic Treatment ◽  
Placebo Control Group

scholarly journals AB0507 INVASIVE ASPERGILLOSIS IN ADULT RHEUMATOLOGICAL PATIENTS IN SAINT PETERSBURG, RUSSIA.

2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 1551.1-1552
Author(s):  
V. Mazurov ◽  
O. Shadrivova ◽  
M. Shostak ◽  
L. Martynova ◽  
M. Tonkoshkur ◽  
...  
Keyword(s):  
Risk Factors ◽  
Systemic Lupus Erythematosus ◽  
Renal Failure ◽  
Invasive Aspergillosis ◽  
Lupus Erythematosus ◽  
Granulomatosis With Polyangiitis ◽  
Control Group ◽  
Systemic Lupus ◽  
Anca Associated Vasculitis ◽  
Underlying Diseases

Background:Invasive aspergillosis (IA) is a severe opportunistic infection that is not well understood in rheumatological patients.Objectives:To study risk factors, etiology, clinical manifestations and results of treatment of IA in adult rheumatological patients.Methods:Retrospective analysis of 830 patients (1998-2019) with “proven” and “probable” IA (EORTC / MSG, 2019), adults - 699 (84%). The main group included 18 (3%) adult rheumatological patients with IA, a control group included 610 (87%) adult hematological patients. Rheumatological patients were older, the average age was 59 years (21–75) vs 45 years (18–79), p = 0.005, and among them there were more women – 56% vs 42%, p = 0.01.Results:In rheumatological patients with IA, underlying diseases were ANCA-associated vasculitis (28%), granulomatosis with polyangiitis (22%), periarteritis (11%), systemic lupus erythematosus (22%), rheumatic heart disease (11%) and ankylosing spondylitis (6%). In the control group, underlying diseases were acute leukemia (45%), lymphomas (34%), chronic leukemia (9%), multiple myeloma (7%), myelodysplastic syndrome (3%), and other hematological diseases (2%).The main risk factors for IA development in rheumatological patients were: systemic steroids use (89% vs 69%), prolonged lymphocytopenia (76% vs 65%, median - 14 vs 12 days), treatment in ICU (44% vs 18%, p = 0.01), acute or chronic renal failure (39% vs 1%, p = 0.0008) and immunosuppressive therapy (28% vs 25%). Severe neutropenia was noted significantly less frequently (18% vs 83%, p = 0.0001). Additional risk factors were decompensated diabetes mellitus (17% vs 2%, p = 0.004), previous surgery (17% vs 1%, p = 0.001) and organ transplantation (6% vs 0%). In rheumatological patients, lung (83% vs 98%, p = 0.0001) and ≥2 organs (6% vs 8%) involvement were less common. Heart (11% vs 0%), sinuses (6% vs 5%) and central nervous system (6% vs 4%) involvement more often developed. In rheumatological patients, respiratory failure (61 vs 37%, p = 0.03), hemoptysis (28% vs 7%, p = 0.0001) and chest pain (17% vs 7%, p = 0, 04) were noted more often, less often - fever ≥380С (67% vs 85%, p = 0.01) and cough (61% vs 70%). CT signs of lung damage were similar in both groups, but rheumatologic patients were more likely to show an «air crescent» sign and / or destruction cavity (44% vs 10%, p = 0.0001). In rheumatologic patients, IA was more often confirmed by isolation ofAspergillusspp. from BAL (80% vs 45%, p = 0.005) and by histological examination (22% vs 7%, p = 0.01). The main pathogens wereA. fumigatus(50% vs 43%),A. niger(29% vs 32%), andA. flavus(14% vs 17%).Rheumatological patients were less likely to receive antifungal therapy 89% vs 99%, p = 0,0003. The main drug in both groups was voriconazole. The overall 12-week survival did not significantly differ between groups, but was lower in rheumatological patients with IA (69% vs 81%).Conclusion:In rheumatological patients, invasive aspergillosis more often developed at an older age, mainly in women. The main background diseases were ANCA-associated vasculitis, granulomatosis with polyangiitis, and systemic lupus erythematosus. Typical risk factors were steroids and immunosuppressants use, prolonged lymphocytopenia, ICU stay, and renal failure. The main causative agents wereA. fumigatus,A. niger, andA. flavus. The main localization of infection were lungs. Respiratory failure, hemoptysis and heart involvement were typical. The overall 12-week survival of rheumatological patients with invasive aspergillosis was 69%.Disclosure of Interests:None declared

Effect of Proportional Reduction of Sodium Intake on the Adaptive Increase in Glomerular Filtration Rate/Nephron and Potassium and Phosphate Excretion in Chronic Renal Failure in the Rat

1975 ◽  
Vol 49 (3) ◽  
pp. 193-200 ◽  
Author(s):  
C. H. Espinel
Keyword(s):  
Renal Failure ◽  
Glomerular Filtration Rate ◽  
Chronic Renal Failure ◽  
Glomerular Filtration ◽  
Sodium Excretion ◽  
Filtration Rate ◽  
Sodium Intake ◽  
Dietary Sodium ◽  
Control Group ◽  
Phosphate Excretion

1. The influence of dietary sodium intake on the glomerular filtration rate (GFR/nephron) and potassium and phosphate excretion was examined at three stages of progressive chronic renal failure produced in rats by sequential partial nephrectomies. 2. The adaptive increased sodium excretion per nephron in the control group receiving a constant sodium intake did not occur in the experimental group that had a gradual reduction of dietary sodium in direct proportion to the fall in GFR. 3. Despite the difference in sodium excretion, the increase in GFR/nephron, the daily variation in the amount of potassium and phosphate excreted, the increase in potassium and phosphate excretion per unit nephron, and the plasma potassium and phosphate concentrations were the same in the two groups. 4. The concept of ‘autonomous adaptation’ in chronic renal failure is presented.

Progression of Renal Failure in Chronic Primary Glomerular Diseases

Nephron ◽  
1994 ◽  
Vol 68 (1) ◽  
pp. 32-37 ◽  
Author(s):  
Ana Gonzalo ◽  
Araceli Gallego ◽  
Maite Rivera ◽  
Nieves Gallego ◽  
Joaquín Ortuño
Keyword(s):  
Renal Failure ◽  
Glomerular Diseases ◽  
Progression Of Renal Failure ◽  
Primary Glomerular Diseases

scholarly journals Nicotinamide Attenuates the Progression of Renal Failure in a Mouse Model of Adenine-Induced Chronic Kidney Disease

Toxins ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 50
Author(s):  
Satoshi Kumakura ◽  
Emiko Sato ◽  
Akiyo Sekimoto ◽  
Yamato Hashizume ◽  
Shu Yamakage ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Renal Failure ◽  
Kidney Disease ◽  
Mouse Model ◽  
Metabolic Pathways ◽  
Krebs Cycle ◽  
Inflammatory Reactions ◽  
Progression Of Kidney Disease ◽  
Progression Of Renal Failure

Nicotinamide adenine dinucleotide (NAD+) supplies energy for deoxidation and anti-inflammatory reactions fostering the production of adenosine triphosphate (ATP). The kidney is an essential regulator of body fluids through the excretion of numerous metabolites. Chronic kidney disease (CKD) leads to the accumulation of uremic toxins, which induces chronic inflammation. In this study, the role of NAD+ in kidney disease was investigated through the supplementation of nicotinamide (Nam), a precursor of NAD+, to an adenine-induced CKD mouse model. Nam supplementation reduced kidney inflammation and fibrosis and, therefore, prevented the progression of kidney disease. Notably, Nam supplementation also attenuated the accumulation of glycolysis and Krebs cycle metabolites that occurs in renal failure. These effects were due to increased NAD+ supply, which accelerated NAD+-consuming metabolic pathways. Our study suggests that Nam administration may be a novel therapeutic approach for CKD prevention.

Effects of Dietary Protein on the Progression of Renal Failure in the Fawn-Hooded Rat

Nephron ◽  
1990 ◽  
Vol 55 (2) ◽  
pp. 203-209 ◽  
Author(s):  
M.H. De Keijzer ◽  
A.P. Provoost
Keyword(s):  
Renal Failure ◽  
Dietary Protein ◽  
Progression Of Renal Failure

scholarly journals ROLE OF CARDIAC MARKERS IN CHRONIC RENAL FAILURE PATIENTS.

2020 ◽  
pp. 81-82
Author(s):  
Ramesh Chandra Thanna ◽  
B K Agarwal ◽  
Rakesh Romday ◽  
Neha Sharma
Keyword(s):  
Renal Failure ◽  
Chronic Renal Failure ◽  
Positive Association ◽  
Morbidity And Mortality ◽  
Control Group ◽  
High Morbidity ◽  
C Reactive Protein ◽  
Reactive Protein ◽  
Hs Crp

Introduction: Cardiovascular diseases (CVD) are known as important reasons of the increased morbidity and mortality observed in patients with chronic renal failure (CRF). The association of serum Interlukin-6 , homocysteine as well as other cardiovascular risk factors in relation to existence and cause of CVD were investigated. Method: In this study 200 CRF patients were recruited and further stratified into group with Male and Female as case groups. Those without renal failure were assigned as control group (n=200). Results: The patients with CRF showed a significant increase in plasma levels of Cpk-MB homocysteine and C-reactive protein (CRP) compared to control. The positive association were observed between homocysteine, Urea and Hs-CRP, IL_6 . It shows a significant Association of parameters in CRF . Conclusion: The results demonstrated elevation in plasma values IL-6 , homocysteine and HS-CRP in patients with CRF . However, these modifications may be lead to atherosclerosis and consequence CVD event. These parameters may be important with respect to the high morbidity and mortality of CVD found in patients with CRF.

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