فهرست مطالب
Journal of nephropathology
Volume:6 Issue: 3, Jul 2017
- تاریخ انتشار: 1396/03/29
- تعداد عناوین: 26
-
Pages 105-109Context: Numerous studies have reported the impact of obesity in the incidence of chronic kidney disease (CKD). Some studies have suggested the direct role of obesity in the incidence of CKD, while some other studies suggest an indirect effect caused by the effects of obesity on blood pressure and diabetes.
Evidence Acquisition: PubMed, EBSCO, Web of Science, directory of open access journals (DOAJ), EMBASE, and Google Scholar have been searched.ResultsRecent studies have presented more strong evidences on the role of obesity on the incidence of CKD. The double role of obesity in the incidence of CKD has also been mentioned in some studies.ConclusionsSuch an additional effect arises from the impact of obesity on the incidence of some conditions and diseases such as cardiovascular disease, hypertension, and diabetes, which in turn are involved in the incidence of CKD and are considered as its risk factors.Keywords: Chronic kidney disease, Obesity, World kidney day, End-stage renal disease -
Pages 110-117Context: The use of aspirin in chronic kidney disease (CKD) patients has been shown to reduce myocardial infarction but may increase major bleeding. However, its effects in kidney transplant recipients are unclear.
Evidence Acquisitions: A literature search was performed using MEDLINE, EMBASE, and Cochrane Database of Systematic Reviews from inception through September 2016. We included studies that reported odd ratios, relative risks or hazard ratios comparing outcomes of aspirin use in kidney transplant recipients. Pooled risk ratios (RR) and 95% confidence interval (CI) were assessed using a random-effect, generic inverse variance method.ResultsWe included 9 studies; enrolling 19 759 kidney transplant recipients that compared aspirin with no treatment. Compared to no treatment, aspirin reduced the risk of allograft failure (4 studies; RR: 0.57, 95% CI: 0.33 to 0.99), allograft thrombosis (2 studies; RR: 0.11, 95% CI: 0.02 to 0.53), and major adverse cardiac events (MACEs) or mortality (2 studies; RR: 0.72, 95% CI: 0.59 to 0.88), but not allograft rejection (3 studies; RR: 0.86, 95% CI: 0.45 to 1.65) or delayed graft function (DGF) (2 studies; RR: 1.00, 95% CI: 0.58 to 1.72) in kidney transplant recipients. The data on risk of major or minor bleeding were limited.ConclusionsOur meta-analysis demonstrates that administration of aspirin in kidney transplant recipients is associated with reduced risks of allograft failure, allograft thrombosis, and MACEs or mortality, but not allograft rejection or DGF. Future studies are needed to assess the risk of bleeding, and ultimately weigh the overall risks and benefits of aspirin use in specific kidney transplant patient populations.Keywords: Aspirin, Kidney transplantation, Delayed graft function, Allograft failure, Transplantation -
Pages 118-125BackgroundObesity and physical inactivity are currently on the rise due to industrialization of the communities, which has recently led to increased incidence of different diseases such as diabetes. Epidemiological studies and figures have demonstrated the growing incidence of diabetes. Relevantly, the side effects of chemical drugs have led patients to use medicinal plants and traditional approaches despite advances in development of chemical drugs. The aim of this review article is to report the medicinal plants and their traditional uses to prevent and treat diabetes according to the findings of ethnobotanical studies conducted in different regions of Iran.
Evidence Acquisitions: The search terms including ethnobotany, ethnomedicine, ethnopharmacology, phytopharmacology, phytomedicine, Iran, and traditional medicine in combination with diabetes, blood sugar and hyperglycemic were searched from scientific databases.ResultsThe results of this article can be a comprehensive guideline, based on ethnobotany of different regions of Iran, to prevent and treat diabetes. According to this review article, certain plant species such as Urtica dioica L., popularly called nettle, in eight regions, Teucrium polium L., popularly called poleigamander, in five regions, and Trigonella foenum-graecum L., Citrullus colocynthis (L.), Schrad., and Juglans regia L. in four regions, were reported to be frequently used to prevent and treat diabetesConclusionsThe introduced medicinal plants in this review can be investigated in further research and produce new drugs with limited side effects.Keywords: Blood sugar, Traditional medicine, Ethnobotany, Iran -
Pages 126-129BackgroundHyperoxaluria has been associated with nephrolithiasis as well as acute and chronic kidney disease. We present a case of end stage renal failure caused by excessive dietary oxalate intake in a dietary weight loss regimen.Case PresentationA 51-year-old Caucasian male with the past medical history of type 2 diabetes mellitus, gout, hypertension and morbid obesity was referred to the primary care clinic after being found pale and easily fatigued. The patient had lost 36 kg over a 7-month period by implementing exercise and intense dietary measures that included 6 meals of spinach, kale, berries, and nuts. Physical examination revealed a blood pressure of 188/93 mm Hg with sunken eyes and dry mucus membranes. Laboratory workup was notable for blood urea nitrogen of 122 mg/dL, creatinine of 12 mg/dL, and estimated glomerular filtration rate (eGFR) of 4.4 mL/min/1.73m2. Patient denied any history of renal disease or renal stones, or taking herbal products, non-steroidal anti-inflammatory drugs, antifreeze (ethylene glycol), or any type of "diet pills." Family history was unremarkable for any renal diseases. After failing intravenous fluid resuscitation, patient was started on maintenance hemodialysis. Abdominal imaging was consistent with chronic renal parenchymal disease with no evidence of nephrolithiasis. Renal biopsy revealed numerous polarized oxalate crystal deposition and diabetic nephropathy class IIA. At this point the patient was instructed to adopt a low oxalate diet. A 24-hour urine collection was remarkable for pH 4.7, citrateConclusionsClinicians need to maintain a high index of suspicion for dietary hyperoxaluria as a potential etiology for acute or chronic kidney failure, particularly in patients pursuing intensive dietary weight loss intervention.Keywords: Oxalate nephropathy, Dietary hyperoxaluria, Acute kidney injury, Chronic kidney disease, Hyperoxaluria, Weight loss, Obesity
-
Pages 130-133BackgroundFabry disease (FD) is a rare X-linked deficiency of lysosomal enzyme alpha-galactosidase (AGAL) resulting in accumulation of globotriaosylceramide (Gb-3) in the cells, with protean manifestations. Major organs affected are the kidneys, heart and nervous system. The diagnosis of FD is often delayed by many years. Enzyme replacement started early might reverse the organ damage while delayed initiation may only stabilize the disease progression.Case PresentationWe describe a patient in whom involvement of different organs unfolded at different times and a detailed review of history by the clinician led to the diagnosis. The importance of electron microscopy (EM) of renal biopsy is highlighted.ConclusionsPatients with FD are often diagnosed late because the manifestations can be variable and spread over different time periods. Detailed history including family history and examining the renal biopsy by EM are crucial for early diagnosis.Keywords: Fabry disease, Alpha galactosidase, Electron microscopy, Stroke, Left ventricular hypertrophy, End stage kidney disease
-
Pages 134-137BackgroundMonoclonal antibodies targeting vascular endothelial growth factor (VEGF), such as bevacizumab, are administered intravitreally for the treatment of wet or exudative age-related macular degeneration (ARMD). Systemic use of bevacizumab has been linked to a wide range of renal adverse effects including proteinuria and hypertension.Case PresentationWe present the case of a 77-year-old Caucasian male with a past medical history of hypertension, vitamin D deficiency and paroxysmal atrial fibrillation who presented to primary care clinic with a 2-week history of bilateral lower extremity edema, 2 months after completing four monthly intravitreal injections of bevacizumab for ARMD. Examination was remarkable for blood pressure of 187/91 mm Hg and severe bilateral lower extremity edema. Work up revealed unremarkable complete blood count (CBC), comprehensive metabolic panel (CMP), lipid panel, and echocardiography, except for 491 mg/dL albuminuria. Metoprolol and furosemide were added to hydrochlorothiazide and lisinopril. Work up by nephrology consult team five months later was notable for a urinalysis revealing 3 red blood cells/high power field (RBC/HPF), 24-hour urine protein of 8.6 g, and serum creatinine of 1.2 mg/dL. Viral hepatitis panel, total complement activity (CH50), C3, C4, anti-nuclear antibody (ANA), anti-neutrophil cytoplasmic antibody (ANCA), serum and urine protein electrophoresis were all unremarkable. Renal biopsy was consistent with membranous nephropathy. Age-appropriate cancer screening was negative. Random urine protein-to-creatinine ratio declined to 2 g/g and then to 0.56 g/g at 7 and 10 months follow up, respectively. Serum blood urea nitrogen (BUN) and creatinine remained normal throughout the course of illness and patient did not require any immunosuppressive treatment.ConclusionsThe wide range of nephrotoxicity after systemic bevacizumab has been well documented. Our case describes a self-limited biopsy-proven membranous nephropathy after intravitreal bevacizumab injections.Keywords: Membranous nephropathy, Proteinuria, Nephrotic syndrome, Age-related Macular degeneration, Vascular endothelial growth factor, VEGF, Anti-vascular endothelial growth factor Anti-VEG
-
Pages 138-143BackgroundPrimary nephrotic syndrome (NS) is a common kidney disease in children.ObjectivesThe present study was aimed to investigate whether rs5370 G>T (lys198Asn) genetic variant of endothelin-1 (ET-1) is involved in the susceptibility to NS.
Patients andMethodsThis case-control study was performed on 138 patients with NS and 150 healthy children. Genomic DNA was extracted from whole blood using salting out method. Polymorphism of the ET-1 rs5370 G>T (lys198Asn) polymorphism detected by T-ARMS-PCR as well as PCR-RFLP method.ResultsThe results showed that the genotype and allelic frequencies of the ET-1 rs5370 G>T variant were not significantly different between cases and controls. Furthermore, subgroup analysis showed that rs5370 G>T variant was not associated with gender of patients. In NS patients the genotype was not associated with cholesterol, triglyceride, total protein and albumin levels.ConclusionsIn conclusion, our findings indicate that ET-1 rs5370 G>T is not associated with NS. Further studies with larger sample sizes and different ethnicities are required to validate our findings.Keywords: Nephrotic syndrome, Endothelin-1, Gene polymorphism -
Pages 144-149BackgroundNephrotoxicity is one of the most important limitations of cisplatin-based chemotherapies which associated with many complications and high mortality rate.ObjectivesTo investigate the effect of lycopene on cisplatin-induced nephrotoxicity in patients with cancer.
Patients andMethodsIn this double-blind, randomized clinical trial, 120 patients were randomly assigned to two groups, case (treated with lycopene standard regimen of kidney injury prevention) and control (treated with only the standard regimen of kidney injury prevention). Lycopene was orally taken from 24 hours before to 72 hours after cisplatin administration. Blood urea nitrogen (BUN), serum creatinine (Cr), and glomerular filtration rate (GFR) were measured and recorded. The data were analyzed using SPSS.ResultsChanges in Cr were not significantly different between the two groups (P = 0.131). However, a significant decreasing trend was seen in GFR during the study, which was more marked in the control group (P = 0.004). BUN significantly decreased during the study (P = 0.002), and a significant decrease of BUN on the day three in both groups was seen (P = 0.001). However, BUN increased in the case group on the day 21 of treatment. The corresponding increase was less marked in the control group.ConclusionsLycopene can be considered a useful adjuvant therapy to decrease the complications due to cisplatin-induced nephrotoxicity in patients with cancer.Keywords: Lycopene, Nephrotoxicity, Cisplatin, Cancer -
Pages 150-156BackgroundHydrogen sulfide (H2S) has been shown to have a protective role in various kidney disorders.ObjectivesThis study investigated the molecular mechanism of NaHS (a H2S donor) in treating on the renal damage induced by cisplatin (CP).Materials And MethodsThirty-two male rats were randomly divided into 4 groups: Normal control group (group A) NaHS group (group B) which received 200 µg/kg/d (intraperitoneal injection; i.p.) for 15 days CP group (group C) which rats were injected with CP (5 mg/kg, single dose, i.p.), and CP NaHS group (group D) (5 mg/kg and 200 µg/kg, respectively, i.p.). Samples of urine and serum, tissue of kidney were collected for analysis after treatments for 15 days. Morphological changes were elevated under light microscope protein expression of desmin and nephrin were determined by immunohistochemistry and western blotting and also malondialdehyde (MDA) level was determined by spectrophotometer.ResultsCompared to the CP group, NaHS treatment mitigated histological damages, decreased 24-hour urine protein excretion, serum urea and creatinine as well as MDA level. NaHS treatment increased protein levels of nephrin. Moreover, NaHS treatment decreased protein levels of desmin.ConclusionsNaHS can ameliorate CP -induced renal damage in rats which is associated with the increase in nephrin protein expression, and the decrease in MDA level and desmin protein expression.Keywords: NaHS, Cisplatin, Podocyte, Nephrin, Desmin
-
Pages 157-162BackgroundSeveral studies have previously been performed to promote kidney healing after injuries.ObjectivesThe aim of this study was to investigate the effect of zinc on renal healing after traumatic injury in rats.Materials And MethodsForty healthy female rats were selected and one of their kidneys was incised. Half of the incisions were limited only to the cortex (renal injury type I) and the other ones reached the pelvocalyceal system of the kidney (renal injury type II). All the rats in the zinc treated group (case group) received 36.3 mg zinc sulfate (contained 8.25 mg zinc) orally. After 28 days, the damaged kidneys were removed for histopathological studies.ResultsIn the rats with type I injury, kidney inflammation of the case group was significantly lower than that of the control group. However, the result was not significant in rats with type II injury. Tissue loss and granulation tissue formation were significantly lower in the case group than the control group in both type I and II kidney injuries.ConclusionsOverall, Zinc can contribute to better healing of the rats kidneys after a traumatic injury.Keywords: Kidney, Trauma, Wound Healing, Zinc
-
Pages 163-167BackgroundOne of the main therapeutic limitations of cisplatin (CP) is nephrotoxicity which is time-dependent.ObjectivesThe purpose of this study was to determine the optimal timing for initiation of CP toxicity.Materials And MethodsSixty male and female Wistar rats were randomly divided into five groups. All the animals in groups 2-5 received single dose of CP (10 mg/kg; i.p.), and were evaluated 25, 50, 75, and 100 hours after CP administration. Group 1 as an untreated group did not receive any agent and was considered as time zero.ResultsThe data indicated time-dependent progression of kidney and hepatic toxicity due to CP administration. Histological examination showed increase in kidney tissue damage score (KTDS) at hour 25, which peaked 75-100 hours after CP administration. Significant body weight loss and reduction of alkaline phosphatase (ALP) 50 hours after CP injection were observed. Blood urea nitrogen (BUN), creatinine (Cr), and serum nitrite increased significantly 75 hours after CP injection. Also, enhancement of kidney and testis weights, and alkaline aspartate aminotransferase (AST) level; and reduction of alanine aminotransferase (ALT) level and uterus weight occurred significantly 100 hours after the injection, while kidney malondialdehyde level enhanced significantly 75 hours after CP administration.ConclusionsThese findings suggest that the CP-induced nephrotoxicity started to develop almost 3 days after administration of the drug in rats. CP surprisingly reduced the serum levels ALP and ALT while AST increased 100 hours after CP injection. CP-induced nephrotoxicity and hepatotoxicity are time-dependent, and the related biomarkers may alter by different trends.Keywords: Cisplatin, Nephrotoxicity, Hepatotoxicity
-
Pages 168-173Background1,1,2-Trichloroethylene (TCE) is an important organic solvent which is widespread in the environment. Work place exposure to TCE has been associated adverse effects in many organs including kidney. Vitamin E is an antioxidant that can overcome oxidative stress.ObjectivesThe aim of the present study is to examine the role of vitamin E against destructive effects of TCE on rat kidney.Materials And MethodsA total of 35 male Wistar rats were randomly divided into seven groups of equal number in each. The rats in group I were the controls received vehicleonly. Animals in groups III, V and VII received intraperitoneal injection (i.p) of corn oil. Rats in groups of II, IV, and VI were received vitamin E at a dose of 200 mg/kg; 30 minutes later, animals were received TCE (i.p) at doses of 1000 mg/kg (groups II and III), 1500 mg/kg (groups of IV and V), and 2000 mg/kg (groups of VI and VII) respectively. The experiment repeated for 7 consecutive days. Twenty-four hours after last administration, animals were killed with overdose of sodium pentobarbital. Blood samples were analyzed for blood urea nitrogen (BUN) and creatinine (Cr). One part of the kidney tissues were excised for measuring malondialdehyde (MDA) and glutathione (GSH) concentrations. Another part were excised for histopathological estimation.ResultsTCE induced a dose-dependent elevation in BUN, Cr, MDA and markedly decreased GSH level when compared to those in control rats. TCE-induced dose dependent injury in rat kidney tissue. Vitamin E significantly decreased BUN, Cr, MDA and increased GSH levels and protected kidney damage in TCE treated animals.ConclusionsThe observations suggest that vitamin E may have a protective effect against TCE-induced oxidative stress in the rat kidney.Keywords: Vitamin E Trichloroethylene_Malondialdehyde_Glutathione
-
Pages 174-179BackgroundToluene is widely used in different activities of industrial, commercial and household applications. It can cause damage to the human body. Buffalos milk has a good nutritive value.ObjectivesThe aim of this study is to examine the negative effects of toluene on kidney tissues and to investigate the protective effects of buffalos milk against toluene induced nephrotoxicity in rats.Materials And MethodsForty adult male Wistar rats (180-220 g weight) were randomly assigned to eight groups (n = 5). Animals in groups I to IV received oral gavage 1 mL distilled water (DH2O) and groups V to VIII received oral gavage 1 mL buffalos milk. Ten minutes later, animals were received toluene (i.p) at doses of 300 mg/kg (groups I and V), 600 mg/kg (groups of II and VI), and 900 mg/kg (groups of III and VII), respectively. The animals in groups IV (control) and VIII were injected vehicle (corn oil) only. The experiment repeated for seven consecutive days. Twenty-four hours after the last administration, animals were killed with overdose of sodium pentobarbital. Blood samples were analyzed for blood urea nitrogen (BUN) and creatinine (Cr). One part of the kidney tissues were excised for measuring the activities of superoxide dismutase (SOD), glutathione reductase (GR) and catalase (CAT) and the level of malondialdehyde (MDA). Another parts were excised for histopatholgical examination.ResultsAdministration of toluene to male rats produced dose-dependent damage in the kidney. This was noted by elevation of BUN, Cr and MDA levels. In contrast, diminished the CAT, GR and SOD enzyme activities in rats treated with toluene when compared to those in control animals. Histopathological manifestations were also observed in dose related manner in toluene-treated rats. Buffalos milk had no effect on the biochemical parameters and kidney morphology when compared to those in control. However, it was able to prevent rat kidney against toluene toxicity.ConclusionsThe results of this study demonstrated that toluene damages kidney tissue and is a nephrotoxic substance. Buffalos milk was able to prevent the renal damage as an antioxidant and a nephroprotective agent.Keywords: Antioxidant enzymes, Buffalo's milk, Toluene, Kidney, Rat
-
Pages 180-186BackgroundDevelopment of steroid dependency is one of the difficult problems in the management of children with idiopathic nephrotic syndrome, leading to increased morbidity, complications and cost of treatment. Thus, predicting early in the disease course will be useful in counseling parents and may improve treatment strategy.ObjectivesTo determine the clinical characteristics that can predict the development of steroid dependency early in the initial episodes of steroid sensitive nephrotic syndrome (SSNS).
Patients andMethodsThe study included 52 children with SSNS. Their ages ranged from 3 to 16 years. Patients were divided into two groups. Group A consisted of 24 patients with steroid dependency or frequent relapses nephrotic syndrome and group B consisted of 28 patients with complete remission or recurrent nephrotic syndrome. Data obtained retrospectively from patients files.ResultsChildren who require a cumulative steroid dose equal or more than 140 mg/kg to maintain remission during the first 6 months of the disease are at high risk to require steroid sparing agents (SSA) for disease control, and who did not achieve remission by day 20 of the initial prednisone course became steroid dependent with 96% specificity but with low sensitivity (50%). All steroid dependent children in this study showed relapses associated significantly with upper respiratory tract infections.ConclusionsCumulative steroid dose in the first 6 months of treatment and the need of more than 20 days to achieve initial remission can predict steroid dependency in children with nephrotic syndrome.Keywords: Nephrotic syndrome, Children, Prediction, Steroid dependency -
Pages 187-195BackgroundDifferential diagnosis between primary focal segmental glomerulosclerosis (FSGS) and minimal change disease (MCD) is sometimes difficult as nephrotic syndrome is the main clinical symptom in both diseases.ObjectivesThis study has attempted to evaluate the urinary excretion of Th1 and Th2 cytokines as potential biomarkers in distinguishing the two types of nephrotic syndrome, and predicting outcome of renal function.
Patients andMethodsThirty-six patients with FSGS (M/F 22/14, Age; 41.9 ± 17 years, SCr=1.7 ± 0.8 mg/dL, UProt=4.7 ± 5.5 g/24 h), and 21 with MCD (M/F 5/16, Age; 41.4 ± 15 years, SCr = 1 ± 0.4 mg/dL, UProt = 7.9 ± 9.3 g/24 h) were included in the study. Τh1 (IL-2, IL-12, GM-CSF, INF-γ, TNF-α) and Th2 cytokines (IL-4, IL-5, IL-10, IL-13) were measured by multiple cytokine assay, Luminex technology, in first morning urinary samples collected at the day of renal biopsy.ResultsNo significant differences in urinary excretion of all cytokines were found between FSGS and MCD patients. In FSGS however, IL-12 urinary levels were independent factor correlated with both global sclerosis (R = 0.5, P = 0.009) and interstitial fibrosis (R = . , P = 0.02). Th1 cytokines (IL-2 and GM-CSF) were significantly increased in FSGS patients who did not respond to treatment (P = 0.03 and P = 0.007, respectively). Th2 cytokines (IL-4, IL-5, IL-10, IL-13) were significantly increased in MCD patients with frequent relapses (P = 0.05, P = 0.001, P = 0.01, P = 0.03).ConclusionsUrinary excretion of Th1 and Th2 cytokines cannot discriminate FSGS from MCD. Th1 cytokines, especially IL-12, IL-2 and GM-CSF, may be involved in pathology and progression of FSGS, while Th2 cytokines are implicated in frequent relapses of nephrotic syndrome in MCD.Keywords: Nephrotic syndrome, Cytokines, Glomerulosclerosis, Tubular atrophy -
Pages 196-203BackgroundThere exists a synergy between chronic kidney disease (CKD) and cardiovascular risk factors (CVRFs) with increased morbidity and poor outcomes.ObjectivesData relating to this clustering in black homogenous populations is scanty. We aim to investigate this relationship in Nigerian communities. Patients andMethodsIt was a cross-sectional observation study from semi-urban communities in South-West Nigeria. We used modified World Health Organization (WHO) questionnaire on chronic diseases (WHO STEPS) to gather information on socio-demographic data, biophysical and clinical characteristics. Biochemical analysis of plasma samples was done.ResultsWe analyzed data of 1084 with mean age of 56.3 ± 19.9 years (33.4 female). Prevalence of stage 3 CKD was 14.2% (3a and 3b were 10.3% and 3% respectively). Prevalence of hypertension (systolic and diastolic blood pressure) and low high-density lipoprotein cholesterol (HDL-C) increased as clustering of cardiovascular (CV) risk factors (CVFRs) increased both in CKD and proteinuria (PConclusionsReduced kidney function and proteinuria significantly clustered with CVRFs. This data suggests that individuals with CV clusters should be screened for CKD or vice versa and they should be considered for prompt management of their CVRFs.Keywords: Chronic kidney disease, Cardiovascular risk factors, Clustering
-
Pages 204-209BackgroundOleuropein is a potent antioxidant and free-radical scavenger with antiinflammatory properties.ObjectivesIn the present study, we evaluated the protective effects of oleuropein on myeloperoxidase (MPO) activity, nitrite, urea, creatinine and glomerulosclerosis in alloxan-induced type 1 diabetic rats.Materials And MethodsThirty Sprague-Dawley male rats were randomly divided into 3 groups: group 1 as control; group 2 as untreated diabetic; and group 3 as treated with oleuropein 15 mg/kg i.p daily. Diabetes was induced in the second and third groups by subcutaneous alloxan injection. After 48 days, the animals were anaesthetized and then the livers and kidneys were removed immediately and used fresh or kept frozen until MPO activity analysis. Blood samples were also collected before sacrificing to measure nitrite, urea, and creatinine. Kidney paraffin sections were prepared to estimate glomerular volume, leukocyte infiltration, and glomerulosclerosis.ResultsOleuropein significantly decreased leukocyte infiltration and glomerulosclerosis in the treated group compared with the diabetic untreated group. Oleuropein significantly decreased the levels of urea, nitrite, and creatinine in the treated group compared with the diabetic untreated group. Moreover, oleuropein significantly decreased MPO activity in the treated group compared with the diabetic untreated group.ConclusionsOleuropein has antioxidative and antiatherogenic activities and exerts beneficial effects on inflammation and kidney function test and decreases diabetic complication in diabetic rats.Keywords: Diabetes mellitus, Rat, Glomerulosclerosis, Oleuropein, Myeloperoxidase activity, Nitric oxide, Kidney function test
-
Pages 210-219BackgroundGram-negative bacteria are associated with an increase in rates of antibacterial resistance. In most low- and middle-income countries such as Iran, there is no continuous surveillance system for antibiotic resistance.ObjectiveThe purpose of this survey was to determine the pattern of antimicrobial sensitivity of gram-negative bacteria within 3 consecutive years at a nephrology ward of Nemazee hospital in Shiraz.Materials And MethodsDuring a 3-year period from 2013 to 2015 at the adult nephrology ward, bacteriological data of all biological samples of hospitalized patients in favor of gram-negative microorganisms were analyzed retrospectively. Antimicrobial susceptibility was performed by the Kirby-Bauer disc diffusion method.ResultsThe most common gram negative bacterium isolated from biological samples was Escherichia coli (43.9%). The highest (86.3%-94.1%) antibacterial resistance rate was associated with Acinetobacter spp. The most frequent resistance was seen with cephalosporins. In contrast to ceftriaxone, ciprofloxacin, and trimethoprim/sulfamethoxazole, nitrofurantoin and aminoglycosides remained their acceptable activity against E. coli. At least three fourths (75%) of Acinetobacter spp. isolates was resistant to either aminoglycosides or imipenem. All (100%) isolated Acinetobacter spp. and Pseudomonas aeruginosa species were susceptible to colistin. The rate of Acinetobacter spp. and P. aeruginosa resistant to three or more drugs was 81.7% and 74.6%, respectively.ConclusionsThe resistant rate of gram negative pathogens to different tested antibacterial agents was considerably high and has increased during the recent three years in our center.Keywords: Antibacterials, Drug resistance, Gram-negative bacteria, Nephrology
-
Pages 220-224BackgroundProliferative glomerulonephritis with monoclonal IgG deposits (PGNMID) is a newly described and rare entity that can develop in native and very rarely in transplanted kidneys. We present a patient who developed de novo PGNMID in the kidney allograft along with a review of the literature.Case PresentationA 38-year old female with type 1 diabetes who underwent successful simultaneous pancreas-kidney (SPK) transplantation 6 years earlier presented with rising serum creatinine, nephrotic range proteinuria and microhematuria. She underwent extensive work up and kidney allograft biopsy revealed mesangial expansion and hypercelluarity on light microscopy, mesangial staining for IgG3, kappa light chains, C1q and C3 on immunofluorescence and abundant mesangial electron dense deposits without substructures on electron microscopy. Serum and urine immunofixation electrophoresis were negative. A diagnosis of de novo PGNMID was made. Patients proteinuria improved and serum creatinine stabilized with conservative therapy.ConclusionsPGNMID can rarely develop in kidney allograft as recurrent or de novo disease and may be mislabeled as transplant glomerulopathy if careful immunofluorescence and electron microscopy are not performed on biopsy specimens. Further studies are needed to better understand the pathogenesis of this disease entity and to develop optimal therapeutic approaches.Keywords: De novo disease, Kidney allograft, Immunoglobulin deposition
-
Pages 225-230BackgroundAcute interstitial nephritis (AIN) is an emerging cause of acute kidney injury (AKI) during the recent years.ObjectivesThere is no data about prevalence, causes, clinical manifestation and outcomes of AIN in our region. Hence, in this study we aimed to find the prevalence of AIN and describe the causes, clinical presentation, and the outcome of AIN in the native kidney biopsies.
Patients andMethodsWe reviewed 934 native kidney biopsies from 2006 to 2014 and collected the data of patients with the diagnosis of AIN including medical history, clinical findings, para-clinical data, pathologic findings, treatment and outcomes.ResultsPrevalence of AIN in our center during 2006 to 2014 was 2.5% of all renal biopsies. The common cause of AIN in our study was drugs. Of those patients admitted to hospital due to AIN, 17 patients (70.8%) received corticosteroid, five of them (29.4%) received pulse of corticosteroid, and 12 patients (70.6%) received oral drug. Around, 54.2% of the patients had hemodialysis during admission. Eight patients had received both dialysis and corticosteroid. Two of them (8.3%) remained on dialysis and 8 (33.3%) developed chronic kidney disease, but 14 (58.3%) patients recovered.ConclusionsThe prevalence of AIN in our study is comparable to other studies and we found the great impact of medications on development of AIN.Keywords: Acute interstitial nephritis, Steroid treatment, Kidney biopsy, Acute kidney injury -
Pages 231-239BackgroundThe etiology of renal disease varies in different parts of the world. In the Middle East, half of all patients reaching end-stage are categorised as either unknown etiology or hypertension-related nephropathy.ObjectivesTo report a renal biopsy series, in a reproducible format and manner, so that data can be compared directly among other series.
Patients andMethodsBiopsies of native kidneys were performed in a 10-year period, at a tertiary referral hospital that provides the entire nephrology service for north Cyprus. Data are reported from 153 patients older than 17 years, who were either Turkish Cypriot or from the Turkish mainland.ResultsMean biopsy rate was 48 per million population (pmp) per year. Mean age was 45.7 years (range 18-78). Overall, the sex distribution was similar (male 51%). The most common histopathological categories were primary glomerulonephritis (GN) (56%), secondary GN (27%), and tubulo-interstitial disease (14%). Of those with primary GN, 29% had secondary (2o) focal and segmental glomerulosclerosis (FSGS) (29%), followed by IgA nephropathy (24 %), membranous 18% and a further 11 patients with 1o FSGS (12%). The incidence of IgA nephropathy was 6.3 per pmp/year. When expressed as a percentage of the annual biopsy rate, 14% of all biopsies showed IgA nephropathy.ConclusionsTo compare data among centres, they must be expressed in terms of the population (incidence pmp/year) and the biopsy rate. In our population, secondary FSGS is common and uncharacterised and we believe many will be caused by monogenic disease.Keywords: Primary renal disease, Renal biopsy, Renal failure, Middle East, Chronic kidney disease -
Pages 240-247BackgroundRisk factors for cytomegalovirus (CMV) disease in renal transplant recipients have been evaluated in industrialized countries with relatively low CMV seroprevalence.ObjectivesWe aimed to determine which factors are related to this illness in a high CMV seroprevalence country.
Patients andMethodsA case-control study was performed with data from a 5-year follow-up of 260 kidney transplant recipients at our center. Odds ratios were calculated using the Mantel-Haenszel method.ResultsA total of 25 cases of CMV disease occurred during the study period. Recipient age greater than 55 years old (odds ratio: 4.95, 95% CI: 1.4417.0) and use of thymoglobulin (odds ratio: 4.84; 95% CI: 1.1021.39) were the only independent predictors for CMV disease. There was not any relationship between the previous serologic status of both donor and receptor and the occurrence of CMV disease. We did not observe any association between the immunosuppressive regimens and CMV disease, except for thymoglobulin.ConclusionsOnly recipient age and thymoglobulin administration were related to CMV disease. Further studies are needed to determine if prophylactic treatment confers clinical benefit in this subset of patients.Keywords: Cytomegalovirus, Kidney transplantation, Mycophenolate mofetil, Thymoglobulin, Transplant -
Pages 248-253BackgroundSecondary hyperparathyroidism (SHPT) is a common complication of chronic kidney disease (CKD) leading high mortality and even long-term morbidity. SHPT is manifested by elevation of parathyroid hormone (PTH) and accurate determining the level of serum PTH is very essential for early diagnosis of SHPT secondary to CKD. It is very important to match the values obtained for intact parathormone (iPTH) and 1 84 PTH with the minimized measurement bias.ObjectivesThe present study aimed to first determine the agreement value between the iPTH and 1 84 PTH measures in patients with hyperparathyroidism secondary to endstage renal disease under chronic hemodialysis. Then, we attempted to determine the best cutoff values for these two measurements for detecting SHPT in such patients.
Patients andMethodsThis cross-sectional study was conducted on hemodialysis patients. The value of study biomarkers including iPTH and 1 84 PTH was assessed.ResultsA strong positive association was revealed between the two indicators of iPTH and 1-84 PTH (r = 0.800, PConclusionsThe measurement of both iPTH and 1-84 PTH is valuable for predicting hyperparathyroidism secondary to CKD, but according to lower cost and comparableeffectiveness of iPTH measurement, this assay may be comparable to 1-84 PTH to predict this consequence.Keywords: Intact parathormone, iPTH, 1-84 PTH, ESRD, Hemodialysis, Bio-active, Chronic kidney disease -
Pages 254-263Context: Kidney is one of the vital organs maintaining homeostasis of body and thus dysfunction of kidney affects quality of life and health severely. Anticancer drugs, particularly chemotherapeutic agents, cause high toxicity leading kidney dysfunction and irreparable kidney injury. Therefore, attention has recently been paid to seeking out alternatives such as nature-based drugs that are effective but less toxic. In this regard, this systematic review article is to report and introduce the most important medicinal plants and their derivatives that are used to reduce anticancer drug-induced nephrotoxicity. Evidence Acquisitions: The word nephrotoxicity alongside the words cancer or chemotherapy in combination with some herbal terms such as medicinal plant, plants, herbs, and extracts were administered to search for relevant publications indexed in PubMed.ResultsAccording to this study, 16 medicinal plants, 12 plant-based derivatives, and three traditional plant-based formulations were found to help control and modulate anticancer drug-induced nephrotoxicity indices.ConclusionsAnticancer drugs cause nephrotoxicity through activating pathways of oxidative stress, damage-associated molecular patterns (DAMPs) production, inflammatory processes, and cell apoptosis, while medicinal plants and their derivatives can cause reduction in nephrotoxicity and anticancer drugs side effects via their antioxidant and anti-inflammatory properties.Keywords: Nephrotoxicity, Cisplatin, Cyclophosphamide, Chemotherapy, Natural compounds
-
Pages 264-269Context: The extra-intestinal manifestations of inflammatory bowel disease (IBD) are common and involve other organs or systems for example; urinary system.
Evidence Acquisitions: For this review, we used a variety of sources by searching through Web of Science, PubMed, EMBASE, Scopus and directory of open access journals (DOAJ).ResultsUrinary complications may occur in up to 22% of patients and nephrolithiasis or renal/kidney stones have been suggested to be a common manifestation of disease in forms of uric acid, calcium phosphate or calcium oxalate. We performed a meta-analysis on five clinical trials and reported that correlation between IBD and formation of stone in renal system is positive and significant (Fix-effect model; CI: 95%, PConclusionsBased on the reports of the clinical trials, calcium oxalate is more prevalent in Crohns disease (CD) than in ulcerative colitis (UC).Keywords: Crohn's disease, Nephrolithiasis, Inflammatory bowel disease, IBD, Kidney stone, Ulcerative colitis