Significance of Serum Uric Acid in Pregnancy Induced Hypertension.

BACKGROUND AND OBJECTIVE: Hypertension is one of the common medical complications of pregnancy and contributes significantly to maternal and perinatal morbidity and mortality. Uric acid (UA) is filtered, reabsorbed and secreted by the kidney. Thus, this study was conducted to assess the serum UA levels in PIH and to evaluate the diagnostic value of serum UA level in PIH. MATERIALS AND METHODS: This is a hospital based comparative cross-sectional study conducted in BPKIHS. Ninety study participants were included; forty five participants were diagnosed of PIH and forty five in control group after obtaining informed consent from study participants from August 2014 to May 2015. Serum UA was done by Uricase method and serum creatinine was done by Jaffe's alkaline picrate method in cobas c311 autoanalyser. Data were expressed in frequency, percentage, mean ± S.D., median (IQR), and Independent t-test, Mann-Whitney U test were applied. p Value <0.05 is considered to be significant. RESULTS: Mean serum UA levels was higher in PIH compared to control group (5.46 ± 1.51 vs 4.03 ± 0.69) respectively. ROC curve demonstrated that serum UA showed a superior diagnostic efficiency (Sensitivity - 79.07%, Specificity - 71.19%) compared to creatinine (Sensitivity - 62.75%, Specificity - 27.45%) in PIH respectively. CONCLUSION: The present study shows that serum UA is significantly raised in PIH compared to the control group. Assessment of uric acid is a convenient and cost-effective method for determination of severity in PIH. Thus, serum uric acid can still be used as prevalent marker for risk assessment in PIH.

Diagnostic Accuracy of Serum Cystatin C for Early Recognition of Nephropathy in Type 2 Diabetes Mellitus.

OBJECTIVES: Diabetic nephropathy is one of the major complications that develop over time in type 2 diabetes mellitus (T2DM). This prospective study was conducted to assess the diagnostic accuracy of serum cystatin C in detecting diabetic nephropathy at earlier stages. MATERIALS AND METHODS: This study was undertaken on 50 cases of T2DM and 50 healthy subjects as controls. Demographic and anthropometric data and blood and urine samples were collected. The concentration of serum cystatin C (index test) and traditional markers of diabetic nephropathy, serum creatinine, and urinary microalbumin (the reference standard) were estimated. Similarly, blood glucose, glycated haemoglobin (HbA1c), triglycerides, total cholesterol, high-density lipoprotein (HDL) cholesterol, and urinary creatine were measured. RESULTS: The mean ± SD serum cystatin C was significantly higher in T2DM as compared to control (1.07 ± 0.38 and 0.86 ± 0.12 mg/dl, respectively, p < 0.001). The mean ± SD bodyweight, BMI, W : H ratio, pulse, SBP, and DBP were 66.4 ± 12.6 kg, 26.2 ± 5.6 kg/m2, 1.03 ± 0.09, 78 ± 7, 125 ± 16 mm of Hg, and 77 ± 9 mm of Hg, respectively, in cases. A significant difference in HDL cholesterol (p=0.018) and serum cystatin C (p < 0.001) was observed among different grades of nephropathy. Cystatin C had a significant positive correlation with age (r = 0.323, p=0.022), duration of T2DM (r = 0.326, p=0.021), and UACR (r = 0.528, p < 0.001) and a significant negative correlation with eGFR CKD-EPI cystatin C (r = -0.925, p < 0.001). The area under ROC curve for serum cystatin C (0.611, 95% CI: 0.450-0.772) was greater than for serum creatinine (0.429, 95% CI: 0.265-0.593) though nonsignificant. CONCLUSION: Serum cystatin C concentration increases with the progression of nephropathy and duration of diabetes in Nepalese T2DM patients suggesting cystatin C as a potential marker of renal impairment in T2DM patients.

Neuromuscular Junction Disorders and Floppy Infant Syndrome: A Comprehensive Review.

Floppy infant syndrome, also sometimes referred to as rag-doll syndrome, is characterized by hypotonia that could present as either peripheral hypotonia or central. Depending on the origin of hypotonia, the infant will present with different symptoms that ultimately have the characteristic feature of hypotonia. The clinical examination is crucial in diagnosing floppy infant syndrome in the neonate period, but the most critical factor is investigating and diagnosing the underlying cause of hypotonia. Regardless of whether the underlying cause of hypotonia is peripheral or central in origin, the presentation of floppy infant syndrome focuses on observing for the presence or absence of specific signs such as 'frog-leg' posture, significant head lag on traction or pull-to-sit maneuver, or the feeling of 'slipping through the hands' when the infant is held under the arms. Infantile botulism, transient neonatal myasthenia gravis, congenital myasthenia gravis, hypermagnesemia, and aminoglycoside toxicity are all neuromuscular junction disorders that are considered to be a differential diagnosis of floppy infant syndrome. These neuromuscular junction disorders ultimately impact the presence of acetylcholine within the neuromuscular junction. While some of these disorders may impact the acetylcholine receptors, others may cause a depletion within the end-plate anticholinesterase enzyme. A deficiency within the anticholinesterase deficiency may cause desensitization to acetylcholine, which could also cause present with floppy infant syndrome as well. Depending on the underlying causative disorder leading to the presence of floppy infant syndrome, the treatment will vary considerably. Treatment of the underlying causative syndrome resulting in the presentation of floppy infant syndrome deals with the symptoms of hypotonia, and as a result, the decreased muscle tone, diminished tendon reflexes, any feeding or respiratory difficulties diminish.

Diagnostic utility of adenosine deaminase (ADA) activity in pleural fluid and serum of tuberculous and non-tuberculous respiratory disease patients.

Adenosine deaminase activity (ADA) was assayed in pleural fluid and serum of 42 subjects with pleural effusion. Twenty-nine of them had TB pleural effusion and the remaining 13 had pleural effusion due to non-TB respiratory diseases. Serum adenosine deaminase activity were also measured in 32 pulmonary tuberculosis patients without pleural effusion and equal numbers of healthy controls without systemic diseases for comparative analysis. The patients attending the medicine out-patient department (MOPD) of the B. P. Koirala Institute of Health Sciences, Dharan, Nepal were taken as study subjects. Serum and pleural fluid ADA activities were assayed spectrophotometrically by the method of Guisti and Gallanti. The mean serum ADA activity was significantly increased in patients with tubercular pleural effusion (34.53 +/- 10.27 IU/l) compared to pulmonary tuberculosis patients without pleural effusion (26.54 +/- 4.76 IU/l), (p = 0.004), those with non-TB respiratory disease (16.71 +/- 5.16 IU/l), (p = 0.0001) and healthy controls (15.53 +/- 4.4 IU/l) (p = 0.0001). The mean ADA in the pleural fluid of tubercular pleural effusion patients (90.29 +/- 54.80 IU/l) was significantly higher compared to those with non-TB respiratory disease (24.43 +/- 9.28 IU/l) (p = 0.0001). Using the lowest cutoff value for enzyme activity in the serum of patients with TB pleural effusion (25 IU/l), a test sensitivity of 72.41% and specificity of 81.53% were obtained. Using the lowest cutoff value for enzyme activity in pleural fluid of patients with TB pleural effusion (45 IU/l) the sensitivity and specificity for diagnosis were 76.10% and 100%, respectively. Therefore, the measurement of ADA in tubercular pleural effusion has a utility in the diagnosis of tuberculosis when other clinical and laboratory tests are negative.

Cystatin-C as a Marker for Renal Impairment in Preeclampsia.

Preeclampsia is a devastating pregnancy-associated disorder characterized by the onset of hypertension, proteinuria, and edema with limited plausible pathophysiology known. Cystatin-C, a novel marker for the detection of renal impairment, is increased in preeclampsia at an early stage. This study was aimed to evaluate the diagnostic efficiency of Cystatin-C as an early marker of renal function in preeclampsia comparing it to the traditional renal markers. A hospital based comparative cross-sectional study was performed on 104 women (52 diagnosed cases of preeclampsia and 52 healthy pregnant women). Concentrations of Cystatin-C, creatinine, urea, and uric acid were measured in both the study groups. Mean serum Cystatin-C and uric acid levels were elevated in preeclampsia cases compared to controls (1.15 ± 0.37 versus 0.55 ± 0.12; 5.40 ± 1.44 versus 3.97 ± 0.68, resp.). ROC curve depicted that Cystatin-C had the highest diagnostic efficiency (sensitivity, 88.24%; specificity, 98.04%) compared to creatinine and uric acid. Serum Cystatin-C consequently seemed to closely reflect the renal functional changes, which are believed to lead to increased blood pressure levels and urinary excretion of albumin and may thus function as a marker for the stage of the transition between normal adaptive renal changes at term and preeclampsia.

Urinary screening for detection of renal abnormalities in asymptomatic school children.

BACKGROUND: Urinary screening tests for early detection of renal diseases in asymptomatic school children and adolescents are important in the detection of silent renal diseases. OBJECTIVES: The purpose of the study was to determine the prevalence of occult renal diseases by dipstick test (reagent strips) in asymptomatic Nepalese children. PATIENTS AND METHODS: A total of 2,243 school children, aged 5-15 years, were screened for urinary abnormalities using dipstick test screening. The children who tested positive in the first screening were re-tested after 2-4 weeks. RESULTS: In the first screening, 123 children (5.5%) tested positive for isolated hematuria and proteinuria and for combined hematuria and proteinuria. Of these children, 16 (0.71%) cases tested positive in a second screening. Subsequently, 1 child from the secondary screening group was lost to follow up, 5 tested normal and 10 revealed abnormalities. Glomerulonephritis was the most commonly detected disorder (50%). CONCLUSIONS: Urinary screening was found to be useful in identifying occult renal diseases in asymptomatic children. Urinary screening would therefore not only help in early detection but also in the prevention of the deterioration of renal function later in life.

Serum nitrite level and adenosine deaminase activity is altered in visceral leishmaniasis.

In this study we sought to determine if there is alteration in nitric oxide (NO) production and adenosine deaminase (ADA) activity among patients with visceral leishmaniasis (VL) and the effect of four weeks of chemotherapy on these levels. Fifty-three VL patients diagnosed clinically and by direct demonstration of the LD bodies in the bone marrow smear were studied. They were treated with Sodium Stibogluconate and sampled at the baseline and four weeks. Forty-three healthy individuals coming from the same endemic area were taken as control. Total nitrite (NO2- and NO3-) as an index of NO production and ADA activity was measured spectrophotometrically. Serum nitrite level decreased significantly in patients as compared to the healthy individuals but significantly increased following 4 weeks of chemotherapy. Conversely, Increased ADA activity was observed in the beginning of treatment and decreased significantly with successive 4 weeks of chemotherapy. It seems a negative correlation between NO level and ADA activity. This result indicates parasite induced evasion of NO and activation of T lymphocytes during immunopathogenesis of VL. Therefore, assessment of NO metabolites may be useful marker in the evaluation of the effector mechanism of macrophages and clinical manifestation of patients.

Systemic lupus erythematosus in childhood--a review of 11 patients at a single center in eastern Nepal.

We retrospectively evaluated the clinico-laboratory features of 11 children and adolescents with Systemic Lupus Erythematosus between the period of 2001 and 2006. All of them (100.0%) had renal involvement at the first visit in the hospital. Female to male ratio was 10:1. Skin and or mucosal involvement (90.9%), periorbital puffiness and or pedal edema (81.8%), fever (72.7%), hypertension (72.7%), and reticuloendothelial involvement (72.7%), were the commonest presentations. All patients had anemia (8.6 +/- 1.5 gm/dl), raised ESR (46.7 +/- 9.4 mm in first hour), proteinuria, and in disease activity as evident by raised ESR and positive anti-dsDNA antibody at the first visit. The mean duration of disease was 7.6 months and the average duration of disease activity was 63.18 days. Renal biopsy was performed in 8 patients: class IV lupus nephritis in 4 patients (50.0%), class II in 2 patients (25.0%), class III and V in patient (12.5%) each. Nephrotic range proteinuria and hypertension was observed in all patients of class IV and V of lupus nephritis. Class II and III lupus nephritis patients' were normotensive and had non-nephrotic range proteinuria. Three out of 11 patients (27.2%) expired. The commonest primary determinant of mortality was uncontrolled disease activity in 2 patients (66.6%). The third one had infection and developed disseminated intravascular coagulation. The mean duration of disease activity in patients who died (mean 30 days) was statistically lower than the survival group (75.6 days) (p < 0.01). Renal involvement during first visit and mortality could be attributed by late referrals and diagnosis at hospital.