Purpose of the study: Research of the clinical and diagnostic significance of determination of Lipocalin-2 associated with neutrophilic gelatinases (uNGAL) in the urine of children with urinary tract infection (UTI) a...Purpose of the study: Research of the clinical and diagnostic significance of determination of Lipocalin-2 associated with neutrophilic gelatinases (uNGAL) in the urine of children with urinary tract infection (UTI) and pyelonephritis. Materials and methods: We examined 30 children with acute pyelonephritis and UTI aged 1 to 16 years (average age 7.32 ± 4.52) including 26 girls and 4 boys. Verification of the diagnosis was conducted on the basis of clinical and laboratory data, medical history and instrumental examination of patients. All children were divided into 2 groups: 1st group—15 children with acute pyelonephritis, 2nd group—15 children with urinary tract infection. uNGAL was measured in the urine by enzyme-linked immunosorbent assay (EISA) (BioVendor Laboratoty Medicine). Results: It is found, that the urine level of NGAL depends on the damage degree of renal parenchyma. The correlation of medium strength was found between the excretion level of uNGAL during the acute period of pyelonephritis and the detection of renal scars according to the DMSA-nephroscintigraphy data. In the group of children with the acute pyelonephritis the direct correlation of medium strength was found between the excretion level of uNGAL/creatinine and leukocytosis value and also with the CRP blood level. Conclusion: The results allow us to recommend the determination of the excretion level of uNGAL/creatinine as an additional non-invasive marker for the early detection of renal parenchyma injury.展开更多
The severity of an initial burn injury is critical for determining the treatment plan and prognosis of burn patients. Here, we measured serum neutrophil gelatinase-associated lipocalin (NGAL) levels to determine wheth...The severity of an initial burn injury is critical for determining the treatment plan and prognosis of burn patients. Here, we measured serum neutrophil gelatinase-associated lipocalin (NGAL) levels to determine whether NGAL can be used as a biomarker for severity of burn injuries. A study of the demographic, clinical, and laboratory markers for various organ damage was performed at Bestian Burn Center (n = 10 healthy people, n = 31 patients). NGAL and organ damage marker levels were measured in 31 patients with severe burns within 2 - 3 days following their admission to the intensive care unit. Serum NGAL level of the expired patients was 788.5 (685.0 - 998.0) pg/mL, whereas that of the discharged patients was 421.2 (356.2 - 480.6) pg/mL, showing that the initial serum NGAL level can be used to estimate mortality. We also determined the correlation between serum NGAL level and the currently used severity markers (total body surface area burned and abbreviated burn severity index) and confirmed that serum NGAL level could be used as a severity marker. We also found that serum NGAL level was correlated with damage of organs such as the liver, kidney, heart, and respiratory organs in patients with severe burns.展开更多
Objective: To evaluate the differences of urinary NGAL levels between asphyxiated and non-as- phyxiated neonates. Methods: This was a cross-sectional observational analytic study, including 34 newborns in Dr. Hasan Sa...Objective: To evaluate the differences of urinary NGAL levels between asphyxiated and non-as- phyxiated neonates. Methods: This was a cross-sectional observational analytic study, including 34 newborns in Dr. Hasan Sadikin Hospital, Bandung, Indonesia. Sample collection was conducted from December 2014 to March 2015. Urine NGAL levels were evaluated using enzyme-linked immunosorbent assays (ELISA) technique. To determine the differences of urinary NGAL levels between asphyxiated and non-asphyxiated group we used Mann-Whitney U test, and to determine the differences of gestational age and birth weight between these two groups we used Fisher’s exact test. Results: Twenty males (60%) and 14 females (40%) neonates participated in the study. From 34 subjects, 17 neonates were diagnosed with asphyxia and 17 neonates without asphyxia. The results showed that urine NGAL levels had significantly increased in asphyxiated neonates. The median urine NGAL level in asphyxiated group is 95% CI: 506.7 (60.0 - 651.7) ng/mL, while the median urine NGAL level in non-asphyxiated group is 95% CI: 6.7 (0.1 - 53.0) ng/mL. Statistically, there were significant urine NGAL levels differences between asphyxiated and non-asphyxi- ated neonates (p < 0.001). There were no differences in gestational age and birth weight between asphyxiated and non-asphyxiated neonates (p > 0.05). Conclusions: Urinary NGAL levels in asphyxiated neonates were significantly higher than those in non-asphyxiated neonates. There were significant differences of urine NGAL levels between the groups.展开更多
<strong>Background:</strong> Diagnosis of iron deficiency anemia with currently available tests is rendered difficult in hemodialysis patients. <strong>The aim:</strong> To investigate the role...<strong>Background:</strong> Diagnosis of iron deficiency anemia with currently available tests is rendered difficult in hemodialysis patients. <strong>The aim:</strong> To investigate the role of reticulocyte Hemoglobin Content (CHr) in the diagnosis of iron deficiency anemia in hemodialysis children in comparison to the used traditional markers and assess the impressiveness and the utility of Neutrophil Gelatinase Associated Lipocalin (NGAL) as a novel biomarker of iron status in those patients. <strong>Methods:</strong> This study investigated CHr in addition to NGAL serum level in the same line with traditional markers for anemia, including: CBC, serum iron, ferritin, total iron-binding capacity (TIBC), and transferrin saturation (TSAT%). <strong>Results:</strong> It is more significant that CHr content in hemodialysis children is lower than their controls as they are (27.06 ± 2.90) pg and (32.86 ± 3.59) pg, respectively, p = 0.01. There is no significant difference regarding NGAL between the study groups. Significant negative correlation between CHr with ferritin, urea, creatinine, and positively correlated with iron and RBCS. CHr showed a sensitivity of 90% and specificity of 86.67% to detect iron-deficiency anemia with a cut-off value of 27 pg. <strong>Conclusion:</strong> CHr is superior to ferritin and TSAT % for the early diagnosis of iron deficiency anemia in hemodialysis children;our results do not support NGAL as a marker of anemia in hemodialysis patients.展开更多
Background: Neuttrophil gelatinase associated lipocalin (NGAL) was shown to be a good marker for predicting acute kidney injury (AKI). Some recent reports demonstrated that NGAL may be an early biomarker for kidney af...Background: Neuttrophil gelatinase associated lipocalin (NGAL) was shown to be a good marker for predicting acute kidney injury (AKI). Some recent reports demonstrated that NGAL may be an early biomarker for kidney affection in diabetic patients. The aim of this work is to investigate urinary NGAL (UNGAL) in type 2 diabetic patients with and without albuminuria. Methods: This study included 46 type 2 diabetic patients and 15 healthy age and sex matched individuals as the control group. Diabetic patients were divided into three groups according to urinary albumin excretion (UAE), normoalbuminuria, microalbuminuria and macroalbuminuria. UNGAL was measured in all populations and corrected to urinary creatinine to account for day to day variation in urine volume and transformed log. Comparison between 4 groups (control, normoalbuminuria, microalbuminuria and macroalbuminuria) was done. Results: Log UNGAL/Creatinine ratio showed significant difference when comparing control group (0.70 ± 0.58) versus normoalbuminuria (1.71 ± 1.06), microalbuminuria (1.57 ± 0.72) and macroalbuminuria (1.92 ± 0.63), however, there was no significant difference among diabetic groups. Pearson’s correlation showed that log UNGAL/Creatinine ratio positively correlated with glycated hemoglobin (HbA1c) and inversely with estimated glomerular filtration rate (eGFR). Regression analysis showed that HbA1c, urinary creatinine and eGFR were the independent predictors of log UNGAL/Creatinine ratio. Conclusion: Tubular markers like UNGAL may be early elevated in type 2 diabetic patients even before the incidence of glomerular injury detected by microalbuminuria and it can be used as an early marker for detection of kidney involvement in diabetic patients.展开更多
AIM To study the levels of neutrophil gelatinase associated lipocalin(NGAL) in head and neck squamous cell carcinoma(HNSCC).METHODS This was a non randomized case control study conducted at Department of Biochemistry,...AIM To study the levels of neutrophil gelatinase associated lipocalin(NGAL) in head and neck squamous cell carcinoma(HNSCC).METHODS This was a non randomized case control study conducted at Department of Biochemistry,in collaboration with Regional Cancer Center over a period of one year.The study population included 50 adult newly diagnosed HNSCC patients reporting in outpatient department at Regional Cancer Center and compared with 50 healthy controls.NGAL was estimated by ELISA technique.Student t test and χ~2 test were applied for comparison of means of study groups.Correlations between groups were analyzed using Pearson correlation coefficient(r) formula.RESULTS Patients with HNSCC exhibited significantly increased levels of NGAL(P < 0.05) as compared to healthy controls(978.88 ± 261.39 ng/mL vs 34.83 ± 7.59 ng/mL).Out of 50,26 patients(52%) were in stage Ⅳ,21(42%) in stage Ⅲ,1(2%) patient in stage Ⅱ and 2(4%) patients were in stage Ⅰ.Metastasis was absent in 98% patients and mean NGAL levels were highest in these patients but P value was not significant.Mean NGAL levels were highest in stage Ⅳ [1041.54 ± 222.15 ng/mL(stage Ⅳ) vs 1040 ± 0.00 ng/mL(stage Ⅰ);900 ± 0.00 ng/mL(stage Ⅱ) and 1031.90 ± 202.55 ng/mL(stage Ⅲ)] and χ~2 test was highly significant(P < 0.001).Thirty-six patients(72%) were having moderately differentiated HNSCC and mean NGAL levels were maximum in patients with well differentiated HNSCC(1164 ± 315.64 ng/mL vs 1013.33 ± 161.19 ng/mL in moderately differentiated and 890 ± 11.55 ng/mL in poorly differentiated) and the results were also highly significant(P < 0.001,χ~2 test).CONCLUSION The present work demonstrates a potential role of NGAL as cancer biomarker and its use in monitoring the HNSCC progression.展开更多
文摘Purpose of the study: Research of the clinical and diagnostic significance of determination of Lipocalin-2 associated with neutrophilic gelatinases (uNGAL) in the urine of children with urinary tract infection (UTI) and pyelonephritis. Materials and methods: We examined 30 children with acute pyelonephritis and UTI aged 1 to 16 years (average age 7.32 ± 4.52) including 26 girls and 4 boys. Verification of the diagnosis was conducted on the basis of clinical and laboratory data, medical history and instrumental examination of patients. All children were divided into 2 groups: 1st group—15 children with acute pyelonephritis, 2nd group—15 children with urinary tract infection. uNGAL was measured in the urine by enzyme-linked immunosorbent assay (EISA) (BioVendor Laboratoty Medicine). Results: It is found, that the urine level of NGAL depends on the damage degree of renal parenchyma. The correlation of medium strength was found between the excretion level of uNGAL during the acute period of pyelonephritis and the detection of renal scars according to the DMSA-nephroscintigraphy data. In the group of children with the acute pyelonephritis the direct correlation of medium strength was found between the excretion level of uNGAL/creatinine and leukocytosis value and also with the CRP blood level. Conclusion: The results allow us to recommend the determination of the excretion level of uNGAL/creatinine as an additional non-invasive marker for the early detection of renal parenchyma injury.
文摘The severity of an initial burn injury is critical for determining the treatment plan and prognosis of burn patients. Here, we measured serum neutrophil gelatinase-associated lipocalin (NGAL) levels to determine whether NGAL can be used as a biomarker for severity of burn injuries. A study of the demographic, clinical, and laboratory markers for various organ damage was performed at Bestian Burn Center (n = 10 healthy people, n = 31 patients). NGAL and organ damage marker levels were measured in 31 patients with severe burns within 2 - 3 days following their admission to the intensive care unit. Serum NGAL level of the expired patients was 788.5 (685.0 - 998.0) pg/mL, whereas that of the discharged patients was 421.2 (356.2 - 480.6) pg/mL, showing that the initial serum NGAL level can be used to estimate mortality. We also determined the correlation between serum NGAL level and the currently used severity markers (total body surface area burned and abbreviated burn severity index) and confirmed that serum NGAL level could be used as a severity marker. We also found that serum NGAL level was correlated with damage of organs such as the liver, kidney, heart, and respiratory organs in patients with severe burns.
文摘Objective: To evaluate the differences of urinary NGAL levels between asphyxiated and non-as- phyxiated neonates. Methods: This was a cross-sectional observational analytic study, including 34 newborns in Dr. Hasan Sadikin Hospital, Bandung, Indonesia. Sample collection was conducted from December 2014 to March 2015. Urine NGAL levels were evaluated using enzyme-linked immunosorbent assays (ELISA) technique. To determine the differences of urinary NGAL levels between asphyxiated and non-asphyxiated group we used Mann-Whitney U test, and to determine the differences of gestational age and birth weight between these two groups we used Fisher’s exact test. Results: Twenty males (60%) and 14 females (40%) neonates participated in the study. From 34 subjects, 17 neonates were diagnosed with asphyxia and 17 neonates without asphyxia. The results showed that urine NGAL levels had significantly increased in asphyxiated neonates. The median urine NGAL level in asphyxiated group is 95% CI: 506.7 (60.0 - 651.7) ng/mL, while the median urine NGAL level in non-asphyxiated group is 95% CI: 6.7 (0.1 - 53.0) ng/mL. Statistically, there were significant urine NGAL levels differences between asphyxiated and non-asphyxi- ated neonates (p < 0.001). There were no differences in gestational age and birth weight between asphyxiated and non-asphyxiated neonates (p > 0.05). Conclusions: Urinary NGAL levels in asphyxiated neonates were significantly higher than those in non-asphyxiated neonates. There were significant differences of urine NGAL levels between the groups.
文摘<strong>Background:</strong> Diagnosis of iron deficiency anemia with currently available tests is rendered difficult in hemodialysis patients. <strong>The aim:</strong> To investigate the role of reticulocyte Hemoglobin Content (CHr) in the diagnosis of iron deficiency anemia in hemodialysis children in comparison to the used traditional markers and assess the impressiveness and the utility of Neutrophil Gelatinase Associated Lipocalin (NGAL) as a novel biomarker of iron status in those patients. <strong>Methods:</strong> This study investigated CHr in addition to NGAL serum level in the same line with traditional markers for anemia, including: CBC, serum iron, ferritin, total iron-binding capacity (TIBC), and transferrin saturation (TSAT%). <strong>Results:</strong> It is more significant that CHr content in hemodialysis children is lower than their controls as they are (27.06 ± 2.90) pg and (32.86 ± 3.59) pg, respectively, p = 0.01. There is no significant difference regarding NGAL between the study groups. Significant negative correlation between CHr with ferritin, urea, creatinine, and positively correlated with iron and RBCS. CHr showed a sensitivity of 90% and specificity of 86.67% to detect iron-deficiency anemia with a cut-off value of 27 pg. <strong>Conclusion:</strong> CHr is superior to ferritin and TSAT % for the early diagnosis of iron deficiency anemia in hemodialysis children;our results do not support NGAL as a marker of anemia in hemodialysis patients.
文摘Background: Neuttrophil gelatinase associated lipocalin (NGAL) was shown to be a good marker for predicting acute kidney injury (AKI). Some recent reports demonstrated that NGAL may be an early biomarker for kidney affection in diabetic patients. The aim of this work is to investigate urinary NGAL (UNGAL) in type 2 diabetic patients with and without albuminuria. Methods: This study included 46 type 2 diabetic patients and 15 healthy age and sex matched individuals as the control group. Diabetic patients were divided into three groups according to urinary albumin excretion (UAE), normoalbuminuria, microalbuminuria and macroalbuminuria. UNGAL was measured in all populations and corrected to urinary creatinine to account for day to day variation in urine volume and transformed log. Comparison between 4 groups (control, normoalbuminuria, microalbuminuria and macroalbuminuria) was done. Results: Log UNGAL/Creatinine ratio showed significant difference when comparing control group (0.70 ± 0.58) versus normoalbuminuria (1.71 ± 1.06), microalbuminuria (1.57 ± 0.72) and macroalbuminuria (1.92 ± 0.63), however, there was no significant difference among diabetic groups. Pearson’s correlation showed that log UNGAL/Creatinine ratio positively correlated with glycated hemoglobin (HbA1c) and inversely with estimated glomerular filtration rate (eGFR). Regression analysis showed that HbA1c, urinary creatinine and eGFR were the independent predictors of log UNGAL/Creatinine ratio. Conclusion: Tubular markers like UNGAL may be early elevated in type 2 diabetic patients even before the incidence of glomerular injury detected by microalbuminuria and it can be used as an early marker for detection of kidney involvement in diabetic patients.
文摘AIM To study the levels of neutrophil gelatinase associated lipocalin(NGAL) in head and neck squamous cell carcinoma(HNSCC).METHODS This was a non randomized case control study conducted at Department of Biochemistry,in collaboration with Regional Cancer Center over a period of one year.The study population included 50 adult newly diagnosed HNSCC patients reporting in outpatient department at Regional Cancer Center and compared with 50 healthy controls.NGAL was estimated by ELISA technique.Student t test and χ~2 test were applied for comparison of means of study groups.Correlations between groups were analyzed using Pearson correlation coefficient(r) formula.RESULTS Patients with HNSCC exhibited significantly increased levels of NGAL(P < 0.05) as compared to healthy controls(978.88 ± 261.39 ng/mL vs 34.83 ± 7.59 ng/mL).Out of 50,26 patients(52%) were in stage Ⅳ,21(42%) in stage Ⅲ,1(2%) patient in stage Ⅱ and 2(4%) patients were in stage Ⅰ.Metastasis was absent in 98% patients and mean NGAL levels were highest in these patients but P value was not significant.Mean NGAL levels were highest in stage Ⅳ [1041.54 ± 222.15 ng/mL(stage Ⅳ) vs 1040 ± 0.00 ng/mL(stage Ⅰ);900 ± 0.00 ng/mL(stage Ⅱ) and 1031.90 ± 202.55 ng/mL(stage Ⅲ)] and χ~2 test was highly significant(P < 0.001).Thirty-six patients(72%) were having moderately differentiated HNSCC and mean NGAL levels were maximum in patients with well differentiated HNSCC(1164 ± 315.64 ng/mL vs 1013.33 ± 161.19 ng/mL in moderately differentiated and 890 ± 11.55 ng/mL in poorly differentiated) and the results were also highly significant(P < 0.001,χ~2 test).CONCLUSION The present work demonstrates a potential role of NGAL as cancer biomarker and its use in monitoring the HNSCC progression.
