Spot Urine Creatinine Research Articles

Association of Albuminuria With Chronic Kidney Disease Progression in Persons With Chronic Kidney Disease and Normoalbuminuria : A Cohort Study.

Albuminuria is a major risk factor for chronic kidney disease (CKD) progression, especially when categorized as moderate (30 to 300 mg/g) or severe (>300 mg/g). However, there are limited data on the prognostic value of albuminuria within the normoalbuminuric range (<30 mg/g) in persons with CKD. To estimate the increase in the cumulative incidence of CKD progression with greater baseline levels of albuminuria among persons with CKD who had normoalbuminuria (<30 mg/g). Multicenter prospective cohort study. 7 U.S. clinical centers. 1629 participants meeting criteria from the CRIC (Chronic Renal Insufficiency Cohort) study with CKD (estimated glomerular filtration rate [eGFR], 20 to 70 mL/min/1.73 m2) and urine albumin-creatinine ratio (UACR) less than 30 mg/g. Baseline spot urine albumin divided by spot urine creatinine to calculate UACR as the exposure variable. The 10-year adjusted cumulative incidences of CKD progression (composite of 50% eGFR decline or kidney failure [dialysis or kidney transplantation]) from confounder adjusted survival curves using the G-formula. Over a median follow-up of 9.8 years, 182 of 1629 participants experienced CKD progression. The 10-year adjusted cumulative incidences of CKD progression were 8.7% (95% CI, 5.9% to 11.6%), 11.5% (CI, 8.8% to 14.3%), and 19.5% (CI, 15.4% to 23.5%) for UACR levels of 0 to less than 5 mg/g, 5 to less than 15 mg/g, and 15 mg/g or more, respectively. Comparing persons with UACR 15 mg/g or more to those with UACR 5 to less than 15 mg/g and 0 to less than 5 mg/g, the absolute risk differences were 7.9% (CI, 3.0% to 12.7%) and 10.7% (CI, 5.8% to 15.6%), respectively. The 10-year adjusted cumulative incidence increased linearly based on baseline UACR levels. UACR was measured once. Persons with CKD and normoalbuminuria (<30 mg/g) had excess risk for CKD progression, which increased in a linear fashion with higher levels of albuminuria. None.

Comparison of Serum IgE Level between Initial Attack and Relapse Cases of Idiopathic Nephrotic Syndrome in Children

Background: Nephrotic Syndrome (NS) is a common and recurrent glomerular disease in childhood. Although the exact etiology of NS is not fully known, it is believed that immune system plays a pivotal role in its pathogenesis. Studies have been reported a strong association between NS and increased level of serum immunoglobulin E (IgE). In addition, children with recurrent NS, the IgE level significantly increases, and there is a higher relapse rate.&#x0D; Objective: The aim of the study was to determine the difference of Serum IgE level between initial attack and relapse cases of idiopathic Nephrotic Syndrome in children.&#x0D; Methodology: A cross sectional analytical study has been conducted on 35 initial attack and 35 relapse cases of idiopathic Nephrotic Syndrome children admitted in the Department of paediatrics, Sir Salimullah Medical College Mitford Hospital (SSMCMH), Dhaka from May 2021 to April 2022. Study subjects were enrolled by purposive sampling after confirming the diagnosis and fulfilling the inclusion and exclusion criteria. Informed written consent was taken from each patient's legal guardian before enrollment. A detailed history and thorough physical examination was done in each patient on admission. With all aseptic precaution five ml of venous blood was collected and sent for serum albumin, serum cholesterol and serum IgE level measurement. Data were analyzed using the statistical package for social sciences (SPSS) version 23.0. Independent sample t test or Mann-whitney test was used to compare data between groups. P value of less than 0.05 was considered as significant.&#x0D; Results: The mean age of the studied samples was 3.86 (ranging from 2 to 6 years). Moreover, among the studied sample male was a little bit greater than female. A significant prevalence of relapse cases were found among the children with middle income family status (P&lt;0.05).Spot urine protein and creatinine ratio and serum cholesterol level was significantly higher in patients experience relapse attack (P&lt;0.05). However, serum albumin level was quite similar in both cases. The mean serum IgE of patients experiencing relapse attack was 985.11+433.65 which was significantly higher than patients experiencing initial attack 470.48+227.35 (P&lt;0.001). &#x0D; Conclusion: This study showed that serum IgE levels are higher in relapse cases of Nephrotic Syndrome than that of initial attack. Furthermore, serum IgE is more in frequent relapse as compared to infrequent relapse. Serum IgE levels have a positive correlation with disease activity and relapse of Nephrotic Syndrome.

FRI699 Hyperphosphatemia In The Setting Of Sodium Hypochlorite Use

Abstract Disclosure: K. Champagne: None. A.D. Mooradian: None. N. Gupta: None. M.J. Haas: None. G.Y. Gandhi: None. M.M. Jurado-Flores: None. Introduction: Acute elevation of serum phosphorous occurs for various reasons, including cellular injury (hemolysis, rhabdomyolysis, tumor lysis syndrome), decreased excretion (acute renal injury), or increased absorption/intake. Case Description: A 20-year-old woman presented as a pedestrian struck by a car after a motor vehicle accident. She sustained significant injury to the left leg, including degloving injury, femur, and tibia fracture requiring intramedullary nailing, skin graft, and multiple debridements. A review of systems was positive for chronic constipation. Physical exam was remarkable for several large, deep wounds on the left leg with a wound vac. Her wound was treated with sodium hypochlorite 0.25% solution. Laboratory results revealed that serum CK was 2,903 U/L on admission, and serum phosphorous level was normal and only started to rise one month after admission. She was transfused for blood loss and received IV fluids intermittently. Serum ionized calcium was low on admission at 0.90 mmol/L, calcium supplement was started, and hypocalcemia resolved. GFR dropped twice (at 46 and 62 mL/min/1.73M2) during admission but recovered to normal within a day. Serum phosphorous was elevated and ranged from 4.7-8.0 mg/dL, magnesium level fluctuated between 1.5-2.5 mg/dL, the parathyroid hormone was low at 7.0 pg/ml, 25-hydroxy vitamin D was low at &amp;lt;5.0 ng/ml, 1,25-dihydroxy vitamin D was low at &amp;lt;5.0pg/ml, FGF-23 was high at 616 RU/ml. Sevelamer was given for 9 days and discontinued. Sodium hypochlorite 0.25% solution and calcium supplement were discontinued, and vitamin D supplementation was initiated. The fractional excretion of phosphorous calculated from spot urine phosphorous and creatinine was low at 3.03%. Seven days later, plasma phosphorous levels normalized. Discussion: Sodium hypochlorite is a strong alkali (pH ∼11) and is the active ingredient of bleach. When exposed to water, it forms hypochlorous acid that generates superoxide radicals, leading to oxidative injury and cell death. This solution is bactericidal and may cause some tissue injury as well. It is used in healthcare settings to disinfect dialysis machines and tunneled catheters, surgical equipment, wound cleaning, hand hygiene, and root canal sterilization. It may increase the risk of hyperphosphatemia when used in a patient with immobilization, bone fractures, hypoparathyroidism, low vitamin D, multiple blood transfusions, and wound debridements. There have been rare reports of acute kidney injury with an intravenous bleach injection. Presentation: Friday, June 16, 2023

Evaluation of Neutrophil/Lymphocyte Ratio, Low-Density Lipoprotein/Albumin Ratio, and Red Cell Distribution Width/Albumin Ratio in the Estimation of Proteinuria in Uncontrolled Diabetic Patients.

Introduction Diabetic nephropathy associated with end-stage renal disease (ESRD) is a significant public health problem due to its high morbidity and mortality. We aimed to improve the estimation of proteinuria in diabetic patients and potentially enhance risk stratification and clinical management strategies with the assessment of the correlation of the neutrophil/lymphocyte ratio (NLR), low-density lipoprotein/albumin ratio (LAR), and red cell distribution width/albumin ratio (RAR) with the proteinuria in the uncontrolled diabetes patient population. Methods This was a retrospective study including 327 patients with uncontrolled diabetes (HbA1c > 10%) seen in an outpatient clinic. The study enrolled patients over 18 years old, excluding those with active infections, malignancies, immunodeficiency, hematological diseases, pregnancy, breastfeeding, or type I diabetes. Patients using specific drugs affecting proteinuria or lipid levels were also excluded. Data from patients were retrospectively obtained, including gender, age, blood parameters, glucose, creatinine, albumin, cholesterol, triglyceride, and HbA1c levels, as well as spot urine protein and creatinine levels. Proteinuria was assessed using a spot urine protein/creatinine ratio (>0.30 indicated proteinuria). Patients were divided into two groups: group 1 (non-proteinuric with uncontrolled diabetes) and group 2 (proteinuric with uncontrolled diabetes). Demographics, laboratory results, and LAR, NLR, and RAR values were compared between the groups with univariate and multivariate analyses. All statistical analyses were performed using IBM SPSS Statistics for Windows software. For the statistical significance level, p<0.05 was accepted as meaningful. Results Among 327 patients with uncontrolled diabetes, 33.03% were proteinuric. Patients with proteinuria were significantly older (median age 65 vs. 61 years) and had higher NLR and RAR values. There were no significant differences observed in terms of LAR values between groups. Serum albumin levels were lower and urea levels were higher in the proteinuric group. A multivariate analysis was done to identify variables for the prediction of proteinuria. NLR and RAR were found to be independent predictors of proteinuria even after adjusting for potential confounders in the multivariate analysis. The model achieved a 71.9% correct classification rate. An NLR cutoff of 1.93 increased the likelihood of proteinuria 1.93-fold, while a RAR cutoff of 3.30 increased the likelihood 1.63-fold. Conclusions We found that the LAR ratio cannot be used to predict proteinuria in patients with HbA1C levels above 10, but the NLR and RAR ratios can guide the clinician regarding proteinuria and potentially enhance risk stratification and clinical management strategies before a detailed workup.

Spot Urinary Creatinine Concentration in Patients with Chronic Heart Failure Identifies a Distinct Muscle-Wasting Phenotype with a Strikingly Different Risk of Mortality.

There is a raising awareness that heart failure (HF) is a highly heterogeneous, multiorgan syndrome with an increasing global prevalence and still poor prognosis. The comorbidities of HF are one of the key reasons for presence of various phenotypes with different clinical profile and outcome. Heterogeneity of skeletal muscles (SMs) quantity and function may have an impact on patient's phenotype. We intended to compare clinical characteristics of phenotypes defined by a combination of various SM mass taken as a fat-free compartment from DEXA scans and different levels of SUCR (Spot Urinary Creatinine). All-cause mortality with mortality predicted by MAGGIC in such phenotypes were compared. In 720 HF patients with reduced ejection fraction (age: 52.3 ± 10 years, female: 14%, NYHA: 2.7 ± 0.7, LVEF: 24.3 ± 7.3%), admitted to the hospital for heart transplantation candidacy assessment, morning SUCR along with body composition scanning (DEXA) was performed. All study participants were dichotomized twice, first by low or normal appendicular muscle mass index (ASMI) and second by SUCR (Spot Urinary Creatinine) < and ≥of 1.34 g/L. Four study groups (phenotypes) were created as combinations of lower or higher SUCR and low or normal ASMI. Low ASMI was found in 242 (33.6%) patients, while the remaining 478 had normal muscle mass. In 446 patients (61.9%), SUCR was <1.34 g/L. During 3 years of follow-up, 223 (31.0%) patients died (all-cause). The phenotype of lower both ASMI and SUCR was associated with the highest mortality. The death rate in phenotype with both low ASMI and SUCR exceeded by 70% the risk estimated by MAGGIC. This difference was significant as judged by the 95% confidence interval for MAGGIC estimation. In Cox regression analysis adjusted for MAGGIC and parameters known to increase risk, the relative risk of patients with phenotype of low both ASMI and SUCR was elevated by 45-55% as compared to patients with all other phenotypes. The protective role of higher SUCR in patients with muscle wasting was, therefore, confirmed in Cox analysis. Measurement of SUCR in HF patients can identify clinical phenotypes with skeletal muscle wasting but strikingly different risk of death that is actually not captured by MAGGIC score. The higher level of SUCR was associated with similar risk independently of presence of muscle wasting. As the analysis of SUCR is cheap and easy to perform, it should be further tested as a potentially useful biomarker, which may precisely phenotype HF patients independently of their skeletal muscle status.

Screening of Proteinuria by Urinary Specific Gravity in Nephrotic Syndrome

Background: Nephrotic syndrome is the commonest glomerular disease in children and is often characterized by multiple relapses. Twenty-four hours urinary protein estimation is the accepted method used in the quantification of proteinuria, but it’s a time-consuming, inconvenient and cumbersome and difficult in very young children. This study emphasized screening of proteinuria by urinary specific gravity in nephrotic syndrome. Material &amp; Methods: This cross-sectional study was conducted in the Department of Pediatric Nephrology (NIKDU), Dhaka, Bangladesh from October 2019 to June 2021. A total of 153 patients with nephrotic syndrome were enrolled as the study subjects after taking written consent. Urine samples were collected for both 24 hours and spot for estimation of urinary protein, urinary creatinine (Ucr) and specific gravity by dipstick method. Spot and 24-hour urinary protein creatinine ratio (PCR) were also estimated. From urinary specific gravity, estimated urinary creatinine (estUcr) and estimated urinary protein creatinine ratio (est PCR) were measured. A descriptive method was used and data were processed by using SPSS version 22.0. Results: Among 153 study subjects, the maximum (44.4%) were from the 2-5 years age group followed by 58 (37.9%) from 5-10 years and 27 (17.6%) from &gt;10 years age groups. Boys (61.4%) were more predominant than girls (38.6%) in number. Spot and 24-hour urinary specific gravity have a significant positive correlation with urinary creatinine. Urinary creatinine was estimated by using the equation (Ucr = 1.25×1000 Usg – 1.24×1000). Both spot and 24-hour estimated urinary PCR (est PCR) measured by using urinary specific gravity have a significant positive correlation with corresponding urinary PCR. Conclusion: This study concluded that spot urinary specific gravity has a significant positive correlation with spot urinary protein and spot urinary creatinine. PCR can be estimated from dipstick urinary specific gravity instead of urinary creatinine in the cumbersome laboratory. Therefore, the study may establish an easy, rapid, inexpensive and alternative method for the detection of proteinuria in nephrotic syndrome so that it will help for early detection of relapse and prevent further complications related to nephrotic syndrome.

Evaluation of urinary haptoglobin level as a biomarker of diabetic nephropathy in children with type 1 diabetes.

Type 1 diabetes mellitus (T1DM) is a common endocrine disease in children. Early recognition of complications of T1DM is important for preventing long-term morbidity and mortality. We aimed to investigate whether urinary haptoglobin level is a biomarker of diabetic nephropathy in children with T1DM. Ninety T1DM patients, aged between 2-18years, and 60 healthy age-matched children were included in the study. Glycosylated hemoglobin (HbA1c), spot urine creatinine, microalbumin, protein and haptoglobin levels of all cases were measured and compared. Correlations between HbA1c level, duration of diabetes, spot urine microalbumin/creatinine (uACR), protein/creatinine (uPCR), and haptoglobin/creatinine (uHCR) ratios in the T1DM group were evaluated. T1DM and control groups were homogeneous in terms of age, sex, and anthropometric measurements. uACR was higher in the T1DM group than in the control group (14mg/g vs. 6mg/g) while uHCR was not elevated in T1DM patients. Nevertheless, uHCR was higher in the microalbuminuria group when compared to the normoalbuminuria group. In the T1DM group, moderate positive correlations between uPCR with uACR and uHCR, and weak correlation between uACR and uHCR were found (r = 0.60, p < 0.001; r = 0.55, p < 0.001; r = 0.24, p = 0.03, respectively). No significant relationship was found between diabetes duration, HbA1c levels and uACR, uPCR, and uHCR. Although uHCR in the T1DM group was similar to the control group, uHCR was higher in the microalbuminuria group than in the normoalbuminuria group. These results show that the uHg level could be a biomarker of diabetic nephropathy, but not earlier than albuminuria in the disease course. A higher resolution version of the Graphical abstract is available as Supplementary information.

Prognostic Value of Spot Urinary Creatinine Concentration and Its Relationship with Body Composition Parameters in HF Patients.

Low 24-h urinary excretion of creatinine in patients with heart failure (HF) is believed to reflect muscle wasting and is associated with a poor prognosis. Recently, spot urinary creatinine concentration (SUCR) has been suggested as a useful prognostic factor in selected HF cohorts. This more practical and cheaper approach has never been tested in an unselected HF population. Moreover, neither the relation between SUCR and body composition markers nor the association of SUCR with the markers of volume overload, which are known to worsen clinical outcome, has been studied so far. The aim of the study was to check the prognostic value of SUCR in HF patients after adjusting for body composition and indirect markers of volume overload. In 911 HF patients, morning SUCR was determined and body composition scanning using dual X-ray absorptiometry (DEXA) was performed. Univariable and multivariable predictors of log SUCR were analyzed. All participants were divided into quartiles of SUCR. In univariable analysis, SUCR weakly correlated with fat-free mass (R = 0.09, p = 0.01). Stronger correlations were shown between SUCR and loop diuretic dose (R = 0.16, p < 0.0001), NTproBNP (R = -0.15, p < 0.0001) and serum sodium (R = 0.16, p < 0.0001). During 3 years of follow-up, 353 (38.7%) patients died. Patients with lower SUCR were more frequently female, and their functional status was worse. The lowest mortality was observed in the top quartile of SUCR. In the unadjusted Cox regression analysis, the relative risk of death in all three lower quartiles of SUCR was higher by roughly 80% compared to the top SUCR quartile. Apart from lower SUCR, the significant predictors of death were age and malnutrition but not body composition. After adjustment for loop diuretic dose and percent of recommended dose of mineralocorticoid receptor antagonists, the difference in mortality vanished completely. Lower SUCR levels in HF patients are associated with a worse outcome, but this effect is not correlated with fat-free mass. Fluid overload-driven effects may link lower SUCR with higher mortality in HF.

Study on correlation of urine specific gravity with other laboratory parameters of urine in children with Nephrotic syndrome

Nephrotic syndrome is a frequent childhood kidney disease in which proteinuria is a significant characteristic. Proteinuria can be a benign condition as well as indicates severe underlying renal or systemic diseases. The variation in the prevalence of proteinuria may occur based on the definition used or the evaluation time of the test. Proteinuria is present in up to 10% of routine urine testing in school-aged children, although this decreases to 0.1% with repeated testing. The study aimed to analyze the correlation of urinary specific gravity with other laboratory parameters of urine in children with nephrotic syndrome. Methods: This cross-sectional study was conducted in the Department of Pediatric Nephrology (NIKDU), Dhaka from October 2019 to June 2021, and a total of 153 patients with nephrotic syndrome were enrolled after taking written consent. Urine samples were collected for both 24 hours and spot for estimation of urinary protein, urinary creatinine, dipstick protein, and specific gravity by dipstick method. Spot urinary Protein Creatinine Ratio (PCR) and 24 hours urinary protein were also estimated. Results: Among 153 study subjects maximum (44.4%) were 2-5 years old followed by 58 (37.9%) who were 5-10 years and 27 (17.6%) were &gt;10 years old. Boys (61.4%) were more predominant than girls (38.6%). Mean 24 hours urinary volume was 1097.78±662.63 ml, 24 hours urinary creatinine was 32.17±23.70 mg/dl, 24 hours urinary total protein was 851.42±123.68 mg/dl, 24 hours urinary total protein (UTP) was 7.52±7.65 gm/m2/24 hours urinary specific gravity 1.020±0.02, spot urinary protein 989.49±1136.73 mg/dl, spot urinary creatinine was46.09±43.73 mg/dl, spot urinary PCR was 21.87±18.24 mg/mg and spot urinary specific gravity was 1.020±0.01. The Scatter diagram showed a significant positive correlation of 24 hours urinary specific gravity with 24 hours urinary protein (r=0.169, p=0.037). There was a significant positive correlation of 24 hours specific gravity with 24 hours urinary creatinine (r=0.380, p=&lt;0.001). There was a significant positive correlation of spot urinary protein with spot urinary specific gravity as well (r=0.206, p=0.011). Spot urinary specific gravity showed a significant positive correlation with spot urinary creatinine (r=0.355, p=&lt;0.001). There was a significant negative correlation of spot urinary specific gravity with spot urinary PCR (r= -305, p=&lt;0.001). Conclusion: It can be concluded that urinary specific gravity had a substantial correlation with other laboratory parameters of urine and can be used as an important diagnostic tool for diagnosing proteinuria in children with nephrotic syndrome

PS-C35-8: ESTIMATING A MODEL FOR 24-HOUR URINARY SODIUM EXCRETION FROM SPOT URINE SODIUM AND CREATININE OF BANGLADESHI POPULATION

Background: The best estimate of population distribution and the average level of dietary salt intake is provided by measuring 24hour urinary sodium (Na) excretion in a representative sample. Collection of 24hour urine is difficult for community living people, and therefore, use of the spot urine Na concentration for estimation of daily salt intake was proposed as an alternative to 24hour urine collection. Purpose: To develop and validate equations to estimate the population mean levels of 24hour urinary Na excretion from spot urine Na for a Bangladeshi population. Methods: We utilized a dataset in which estimates of urinary Na levels were available from urine samples from 24hour urine collection and from spot urine of 217 participants, aged 40 to 59 years. We developed formulas to estimate 24hour urinary Na (24HUNa) by using 24hour urinary Creatinine (24HUCr), spot urine Na (SUNa), and spot urine creatinine (SUCr). For the reliability and validity tests of developed formulas, we use another dataset of 517 participants, aged 30 to 59 years, that also contains Na levels from urine samples from 24hour urine collection and from spot urine collection. Results: The obtained formulas were as follows: (i) PRCr (mg/day) = − 6.68 × age (year) + 14.68 × weight (kg) + 23.89 × height (cm) − 3198.18; (ii) estimated 24HUNa (mmol/day) = 42.40 × XNa0.270; where PRCr = predicted value of 24HUCr, XNa = SUNa (mmol/L)/SUCr (mg/L) × PRCr (mg/day). The correlation coefficients of Na (mmol/day) between estimated and measured from 24hour urine sample were 0.477, which was statistically highly significant (p &lt; 0.001). The mean difference (bias) between estimated and measured Na (mmol/day) was 2.9, which was not statistically significant (p &gt; 0.05). Intraclass correlation coefficient (ICC) between estimated and measured 24HUNa was 0.502. Conclusions: These formulas are useful for estimating population mean levels of 24hour urinary Na excretion, though this method is not suitable for estimating individual Na excretion.

Importance of dietary salt restriction for patients with primary aldosteronism during treatment with mineralocorticoid receptor antagonists: The potential importance of post-treatment plasma renin levels.

We measured dietary salt intake in 26 patients with primary aldosteronism treated with mineralocorticoid receptor antagonists and evaluated whether plasma renin levels were affected by dietary salt intake pre-treatment and post 6 months of mineralocorticoid receptor antagonist treatment. The dietary salt intake level was calculated using spot urine sodium and creatinine concentrations, body weight, height, and age. The clinical parameters pre- and post- treatment were compared. The systolic and diastolic blood pressure levels decreased, and the serum potassium and active renin concentration increased significantly. Although the dietary salt intake did not change after treatment, the differences in dietary salt intake and active renin concentration pre- and post- treatment were inversely correlated (r = -0.418, p = 0.03). The 26 patients were divided into two groups with active renin concentration levels ≥5 pg/mL (Group 1) and <5 pg/mL (Group 2) after treatment. The Group parameters did not differ pre- and post- treatment. Group 1 evidenced improvements in systolic and diastolic blood pressures, and the potassium level and active renin concentration over time; Group 2 did not. Group 1 evidenced no significant correlation between the differences in dietary salt intake and active renin concentration levels (r = -0.481, p = 0.11) but Group 2 showed a strong inverse correlation (r = -0.7599, p = 0.01). In conclusion, we found that an active renin concentration level <5 pg/mL post-mineralocorticoid receptor antagonist treatment may indicate that salt sensitivity has not adequately improved, emphasizing the importance of measuring plasma renin levels after such treatment.

Oxidative stress and associated clinical manifestations in malaria and sickle cell (HbSS) comorbidity.

In Ghana, uncomplicated malaria and sickle cell disease (SCD) is common, hence comorbidity is not farfetched. However, the extent of oxidative stress and the array of clinical manifestations in this comorbidity (presence of both malaria and SCD) has not been fully explored. This study highlights the impact of uncomplicated malaria on SCD. The level of isoprostane, 8-iso-prostaglandin F2α (8-iso-PGF2α) was used to assess oxidative stress while plasma biochemistry and urinalysis was used to assess renal function. Hematological profiling was also done to assess the impact of comorbidity on the hematological cell lines. Of the 411 study participants with malaria, 45 (11%) had SCD. Mean body temperature was significantly higher in comorbidity compared to malaria and SCD cohorts, while a lower parasite density range was obtained in comorbidity compared to malaria cohorts. Furthermore, in comorbidity, the 8-iso-PGF2α oxidative stress biomarker was significantly elevated in all ages, parasite density ranges and gender groups. Comorbidity affected both leukocytic and erythrocytic cell lines with significant eosinophilia and monocytosis coexisting with erythrocytic parameters consistent with severe anemia. Biochemically, while plasma creatinine and bilirubin were significantly elevated in comorbidity, spot urinary creatinine was significantly reduced. Additionally, urine samples in the comorbid state were slightly acidic and hypersthenuric with significant hematuria, proteinuria, and bilirubinemia. Finally, 80% or more malaria-SCD presented with chills, fever, anorexia, headache, joint pains, lethargy, and vomiting. In conclusion, malaria could induce vaso-occlusive crisis in sickle cell disease, therefore, prompt management will alleviate the severity of this comorbidity.

Clinical Efficacy of Persian Medicine Diet Combined with Western Medicine-Based Diet on Proteinuria in Pediatric Nephrotic Syndrome: A Randomized Controlled Clinical Trial.

Introduction Nephrotic syndrome (NS) is a common chronic kidney disorder during childhood. The most important characteristic of this disease is proteinuria. The Persian medicine (PM) has important dietary recommendations for strengthening the kidney function and treatment of this disease. The aim of this study was to investigate the effect of a diet including PM recommendations and general principles of Western medicine. Materials and Methods Twenty children with nephrotic syndrome were randomly divided into intervention and control groups and monitored for one month. The control group received a diet based on the general principles of Western medicine. In the intervention group, in addition to the Western medicine diet, dietary recommendations of PM were also prescribed including the pomegranate (Cydonia oblonga mill.), quince (Cydonia oblonga mill.), and whole grains (wheat and barley). A 24-hour dietary questionnaire was applied and anthropometric and biochemical indices including spot urine protein (proteinuria), albumin (Alb), urea, creatinine (Cr), total cholesterol (TC), and triglyceride (TG) were measured before and after the study. Results The amount of protein intake reduced significantly in the diet of both groups but the differences between the two groups were not significant. Proteinuria reduced significantly in both the Western and PM groups; however, proteinuria was significantly lower in the Persian medicine group compared to the control group. TC and Cr levels reduced significantly in the intervention group, although the changes were not significant compared to the control group. Conclusion The results of this study showed that adding dietary recommendations of the Persian medicine to the general rules of the Western medicine diet reduced proteinuria and improved the combat against nephrotic syndrome.

Serum and urinary galectin-9 and C-X-C motif chemokine ligand 10.

Systemic lupus erythematosus (SLE) is characterized by a type I interferon (IFN) signature, and traditional methods for its measurement like gene expression analysis are cumbersome for routine use. Thus, we aimed to study galectin-9 as a biomarker and compared it with a validated marker, C-X-C motifchemokine ligand 10(CXCL-10). Ninety-seven patients with SLE (26 years; 89 females) were included and stratified based on renal involvement and activity into - active (SLEDAI > 4) renal (35), active non-renal (32) and inactive renal subgroups (30) along with 20 healthy controls (HC, 25 years; 15 females). The median disease duration was 24months (6-48), and SLEDAI 2K was 9 (2-15). Serum and urine galectin-9 and CXCL-10 levels were measured by ELISA. Urine levels were normalized with spot urine creatinine values. Follow-up serum and urine galectin-9 levels were measured for those in the active renal group at 6months. Patients with SLE had higher serum galectin-9 (5.6 vs 1.7 μg/mL, p = .0001) but not urine galectin-9 (0.52 vs 0.32 μg, p = .7) levels as compared to HC. Serum galectin-9 but not urine galectin-9 was higher in patients with active as compared to inactive lupus (12.9 - active renal, 16.7 - active non-renal vs 3.57 μg/mL, p = .04 and .005). Serum CXCL-10 (0.16 vs 0.05, p = .01) and urine CXCL-10 (0 vs 0, p = .01) were both significantly higher in the SLE group as compared with HC. Serum but not urine CXCL-10 was higher in the active as compared to inactive lupus (0.2 - active renal, 0.3 - active non-renal vs 0.08 μg/mL, p = .9 and .02). Serum galectin-9 showed a modest correlation with CXCL-10 0.4 (0.2-0.6), whereas none was found between their urine levels.Serum galectin-9 and CXCL-10 showed a moderate positive correlation with SLEDAI 2K. Serum galectin-9 showed a greater AUC than CXCL-10 (0.77 vs 0.67) in differentiating active from inactive SLE, and both tested together had the best AUC of 0.82. However, urinary levels had no association with SLEDAI 2K or renal SLEDAI. In a subset of patients with active renal disease, serum galectin-9 but not urine levels declined significantly after 6months. Serum galectin-9 is a good marker of lupus activity; however, it does not differentiate between active renal and active non-renal disease. It performs slightly better than CXCL-10. Urinary galectin-9 does not reflect renal activity.

Spot Urine Uric Acid to Creatinine Ratio used in the Estimation of Hyperuricosuria in the Young Korean Population

Background: Uric acid levels in urine are measured using urine specimens 24 hours or by uric acid glomerular filtration rate (UAGFR) with spot urine, which additionally requires a blood sample. This study aimed to investigate whether urinary uric acid creatinine ratio (UUACr) obtained by spot urine alone could be recognized as a substitute for UAGFR value, and hyperuricosuria can be screened by UUACr. UUACr is known to vary with age and regional differences. This study focused on the reference value of each value in Korean young populations.Method: We enrolled Korean subjects 1–20 years with normal kidney function, from a single hospital, classified into 5 age groups, 1–5 years, 6–8 years, 9–12 years, 13–15 years, and 16–20 years. We checked spot urine uric acid, creatinine and serum uric acid, creatinine levels on the same day from February 2014 to December 2018. We measured the average of UAGFR and UUACr in each groups. The UUACr cut-off value of the upper 2 standard deviation (SD) of UAGFR were taken.Results: The upper 2 SD of UUACr (mg/mg) and UAGFR (mg/dL) were determined in all age groups. UUACr decreased with grown up (P=0.000), but UAGFR were not statistically different among the groups. UUACr and UAGFR were not significantly different by gender. UUACr and UAGFR were positively correlated; UUACr cut-off value of upper 2 SD UAGFR (0.54 mg/dL) was 0.65 mg/mg in total age.Conclusions: UUACr could potentially be used to screen for hyperuricosuria.

Assessment of Copper and Zinc Levels in Hair and Urine of Children With Attention Deficit Hyperactivity Disorder: A Case-Control Study in Eastern India.

BackgroundAttention deficit hyperactivity disorder (ADHD) is a neuro-developmental ailment diagnosed with inattention and hyperactivity-impulsivity. It is one of the most prevalent neurodevelopmental disorders and has complex aetiology, both genetic and environmental. There is a perceived decrease in skill acquirement, leading to insufficient income and job opportunities as adults, which drives them towards poor physical and mental outcomes compared to their contemporaries without ADHD. The impact of heavy metals on ADHD is a topic of interest but is much less studied. Copper has been implicated as a pro-oxidant and in the metal accelerated production of free radicals that may affect oxidative stress. Zinc also serves as an antioxidant, and changes in its concentrations may impact the homeostasis of oxidative stress.MethodsTwenty-four children diagnosed with ADHD were taken as cases and matched with 24 healthy controls. Hair and urine samples were collected from all the study participants. The samples were collected in sterile containers according to established protocols. Acid digestion of hair samples was done using 65% nitric acid and 30% hydrogen peroxide. Urine samples were extracted by a solution of 0.1% Triton-X-100 and 1% ultrapure nitric acid. The levels of zinc and copper were determined in both samples by inductively coupled plasma optical emission spectrometry (ICP-OES). The copper/zinc ratio (Cu/Zn) was calculated from these values. Mann Whitney U Test and receiver operating characteristic (ROC) analysis were done to estimate statistical significance.ResultsThe median age of the study population was eight years. Overall, 34 male and 14 female subjects participated. There was no significant difference in height, weight and BMI between the cases and controls. Hair zinc levels in the ADHD group (198.49 µg g-1 of hair) was significantly lower than the control group (527.05 µg g-1 of hair). However, hair copper levels were increased significantly in the ADHD children (14.01 µg g-1 of hair) compared to the controls (7.43 µg g-1 of hair). Urine zinc levels were significantly lower in cases than controls (525.7 µg g-1 of spot urine creatinine vs 1374.09 µg g-1 of spot urine creatinine). However, copper levels in urine were higher in the ADHD children (17.01 µg g-1 of spot urine creatinine compared to 7.26 µg g-1 of spot urine creatinine in controls). Both hair and urine copper to zinc ratio was significantly higher in the ADHD group. On ROC analysis, the hair Cu/Zn ratio had an area under the curve (AUC) of 0.920 (p-value <0.001), and the urine Cu/Zn ratio had an AUC of 0.967 (p-value <0.001). When used as a diagnostic classifier for ADHD based on the cut-off value determined by ROC, both hair and urine Cu/Zn ratio had high sensitivity and specificity.ConclusionLow zinc levels in the urine and hair of children and higher levels of copper may impact the aetiology of ADHD in these children. At an early stage, the Cu/Zn ratio in both hair and urine samples may be used as a precise biomarker to identify and monitor such children.

Nutritional and Non-Nutritional Predictors of Low Spot Urinary Creatinine Concentration in Patients with Heart Failure.

Low spot urinary creatinine concentration (SUCR) is a marker of muscle wasting and clinical outcome. The risk factors for low SUCR in heart failure (HF) remain poorly understood. We explored the risk factors for low SUCR related to poor outcomes. In 721 HF patients (age: 52.3 ± 11 years, female: 14%, NYHA: 2.7 ± 0.7) SUCR and Dexa body composition scans were performed. BMI prior HF-onset, weight loss, and appendicular muscle mass were obtained. Each patient was classified as malnutrition or normal by GLIM criteria and three other biochemical indices (CONUT, PNI, and GRNI). Sarcopenia index (SI) as creatinine to cystatin C ratio was also calculated. Within 1 year, 80 (11.1%) patients died. In ROC curve we identified a SUCR value of 0.628 g/L as optimally discriminating surviving from dead. In low SUCR group more advanced HF, higher weight loss and catabolic components of weight trajectory (CCWT), more frequent under-nutrition by GLIM, and lower SI were observed. In multivariate analysis the independent predictors of low SUCR were SI, CCWT, and GNRI score. In conclusion: the risk of low SUCR was associated with a worse outcome. Low SUCR was associated with greater catabolism and sarcopenia but not with biochemical indices of malnutrition.

Water Intake and Markers of Hydration Are Related to Cardiometabolic Risk Biomarkers in Community-Dwelling Older Adults: A Cross-Sectional Analysis

BackgroundEmerging evidence links underhydration and habitual low water intake to higher cardiometabolic risk, but evidence is limited in community-dwelling older adults. ObjectivesThe objective is to examine if higher water intake and better hydration are associated with better cardiometabolic health. MethodsThis cross-sectional analysis using general linear models included 2238 participants from the Framingham Heart Study Second Generation and First Generation Omni cohorts with an estimated glomerular filtration rate >30 mL·min–1·1.73 m–2 and a valid FFQ for assessment of water intake. Of these participants, 2219 had fasting spot urinary creatinine data and 950 had 24-h urine creatinine data to assess hydration. Cardiometabolic risk factors included fasting glucose, triglycerides (TGs), total cholesterol (TC), HDL cholesterol, and calculated LDL cholesterol; glycated hemoglobin (HbA1c); C-reactive protein (CRP); and systolic (SBP) and diastolic (DBP) blood pressure. ResultsThe combined cohorts were on average aged 70 y; 55% were women. Mean (95% CI) daily total water intakes were 2098 (2048, 2150) mL for men and 2109 (2063, 2156) mL for women. Total daily water, beverage (including plain water), and plain water intakes demonstrated significant positive trends with HDL cholesterol (P < 0.01). TG concentrations were significantly lower among the highest plain water consumers (P < 0.05). The 24-h urine concentration, as measured by creatinine, was positively associated with LDL cholesterol and TG concentrations ( P < 0.01) and inversely associated with HDL cholesterol concentrations (P < 0.002). Neither water intake nor urine concentration was associated with glucose or HbA1c (P > 0.05). ConclusionsOur findings of a consistent pattern between circulating lipid concentrations and different water sources and hydration markers support an association between hydration and lipid metabolism in older adults and add to the growing evidence that inadequate water intake and underhydration may lead to higher cardiometabolic risk.

Sedentary behavior and estimated nephron number in middle-aged and older adults with or without chronic kidney disease

BackgroundExcessive sedentary behavior may contribute to the pathogenesis of chronic kidney disease (CKD). The nephron index is a novel methodology for non-invasively estimating the number of functional nephrons, under the assumption that serum fibroblast growth factor 23 (FGF23) concentrations should correlate with phosphate excretion per nephron. The purpose of this study was to investigate the cross-sectional associations between daily sedentary time and the nephron index in middle-aged and older adults with or without CKD. MethodsThe daily time spent in sedentary behavior was assessed using a tri-axial accelerometer in 294 participants (182 non-CKD adults and 112 CKD patients). The nephron index value was calculated by measuring blood and spot urine phosphate and creatinine, together with serum FGF23 concentrations and estimated glomerular filtration rate. ResultsWe observed that advancing age and CKD were associated with a progressive decrease in the nephron index value. Additionally, CKD patients with more sedentary time also had a greater nephron index decrease compared to those with less sedentary time (P < 0.05). Multiple linear regression analysis confirmed the independent association between sedentary time and the nephron index after adjusting for age, sex, presence of CKD, overweight/obesity, medication use, and total wear time (β = −0.13, P = 0.035). ConclusionsThese cross-sectional findings suggest that age- or CKD-related decreases in the estimated nephron number (that is, the nephron index) may be accelerated by increased sedentary behavior.

Assessment of Serum and Urine Neurophil Gelatinase- Associated Lipocalin (s-NGAL and u-NGAL) Level as a Predictive Factor of Disease Progression in Diabetic Nephropathy in Type 2 DM

Diabetic nephropathy (DN) is a major complication of diabetes Mellitus. Early detection and intervention of DN can slow its progression and improve patients' outcomes. Neutrophil gelatinase-associated lipocalin (NGAL) as a marker of tubular damage might become a useful biomarker for the evaluation of renal involvement in diabetic patients. We aimed to evaluate the serum and urine NGAL(s-NGAL and u-NGAL) in type 2 diabetic patients and its correlation with different stages of diabetic nephropathy. This cross-sectional study was designed on 198 subjects consisted of 50 controls and 148 type 2 diabetes patients (50 normoalbuminuric, 58 microalbuminuric, and 40 macroalbuminuric). The study was conducted with measuring s-NGAL and u-NGAL, albumin and spot urine creatinine were also measured. A highly increased level of s-NGAL was detected in macroalbuminuric group compared with controls, normoalbuminurics and microalbuminurics (P < .01). Highly raised u-NGAL levels were observed in macroalbuminurics in comparison with controls (P < .01). ROC curve demonstrated the best sensitivity and specificity of s-NGAL/u-NGAL for the macroalbuminuric state (sensitivity, 26% and 60%; specificity, 98% and 72%; respectively), in which the best cut-off points for the detection of macroalbuminuric state for s-NGAL/u-NGAL were 300 ng/mL and 71.4 ng/mL, respectively. Serum and urine-NGAL are elevated in type 2 diabetic patients, with or without albuminuria, s-NGAL level clearly correlates with severity of renal damage caused by DN and u-NGAL increases in macroalbuminuric state. S-NGAL could be a useful, noninvasive, available and practical test for evaluation of diabetic renal involvement. We could suggest u-NGAL as a probable predictor of macroalbuminuria.