Urinary megalin levels in patients with type 2 diabetic nephropathy and its correlation with renal function

Purpose

Megalin is a glycoprotein molecule found on proximal renal tubular epithelial cells. The objectives of this study were to determine urinary megalin levels in non-diabetic subjects and in patients with and without type 2 diabetic nephropathy and to assess the correlation between urinary megalin, urinary albumin, and estimated glomerular filtration rate (eGFR) in diabetic patients.

Materials and Methods

This was a cross-sectional comparative study conducted at a tertiary care teaching hospital in South India for 2 years. Study subjects were divided into three groups: non-diabetic subjects, diabetics with normoalbuminuria, and diabetics with microalbuminuria. Urinary albumin was detected by the dipstick technique in a spot urine sample for all study subjects. Nephelometry was used to quantify urinary albumin levels. The enzyme-linked immunosorbent assay technique estimated urinary megalin.

Results

Urinary megalin levels were higher in non-diabetic subjects compared to diabetic study subjects. There was a significant difference in urinary megalin levels between non-diabetic subjects and diabetic patients with microalbuminuria. No correlation was found between urinary megalin, urinary albumin, and eGFR in patients with diabetic nephropathy.

Conclusion

Urinary megalin levels were higher in non-diabetic subjects than in type 2 diabetic patients. There was no correlation between urinary megalin, urinary albumin, and eGFR in patients with diabetic nephropathy.

Association of serum calprotectin with peripheral neuropathy in patients with type 2 diabetes mellitus

Introduction

Peripheral neuropathy is a common microvascular complication in patients with type 2 diabetes mellitus with a prevalence of around 50%.

Objectives

This prospective observational cross-sectional study was done to assess serum calprotectin levels among diabetic patients with peripheral neuropathy as compared to those without neuropathy.

Methods

This cross-sectional study was conducted in 126 diabetic patients attending the out-patient department of JIPMER Hospital, Pondicherry from July 2017 to January 2019. The subjects were divided into two groups (with and without peripheral neuropathy) and underwent nerve conduction study of both the lower limbs. Blood samples were collected and stored at -80°C for estimation of serum calprotectin. Serum calprotectin levels were compared between diabetic patients with and without peripheral neuropathy.

Results

Serum calprotectin levels were increased in patients with diabetic peripheral neuropathy (DPN) as compared to those without DPN. However, there was no significant difference in the mean value of serum calprotectin among the various sub-groups of DPN.

Conclusion

Serum calprotectin, an inflammatory biomarker is elevated in patients with diabetic peripheral neuropathy as compared to those without neuropathy.

Acute kidney injury and electrolyte abnormalities in patients with scrub typhus admitted to a tertiary care hospital in southern India

Introduction:

Scrub typhus is an acute febrile illness that is seen in many parts of India. Acute kidney injury (AKI) can occur in patients with scrub typhus who are not diagnosed and treated in the early stage of the disease. Such patients can have associated electrolyte abnormalities also.

Objectives:

This study was done to find out the incidence of occurrence of AKI and electrolyte abnormalities among patients with scrub typhus and correlate the latter with the severity of AKI.

Methods:

This prospective, observational study included 38 patients with scrub typhus admitted to a tertiary care hospital in south India. Serum sodium and serum potassium levels of all the patients were measured at hospital admission. Also, serum creatinine levels of patients on all days of the hospital stay was measured along with other parameters like hemoglobin, leucocyte count, and platelet count.

Results:

The incidence of AKI among patients with scrub typhus was 13.16%. However, electrolyte abnormalities though seen in the patients did not correlate with AKI.

Conclusion:

AKI is not an uncommon phenomenon in patients with scrub typhus. Electrolyte abnormalities in these patients did not correlate with the severity of AKI.

Thyroid dysfunction in patients with type 2 diabetes mellitus and its association with diabetic complications

Background and Aims:

Patients with type 2 diabetes mellitus are more prone to thyroid disorders. Hypothyroidism in them leads to an aggravation of microvascular complications. Diabetic patients with hypothyroidism also are at an increased risk of cardiovascular disease. Screening for thyroid dysfunction in diabetic patients will allow early treatment of hypothyroidism. The aim of this study was to assess the level of thyroid dysfunction in patients with type 2 diabetes mellitus and to identify the association of thyroid dysfunction with diabetic complications.

Methods:

This is a cross-sectional study that was conducted at departments of Medicine & Endocrinology in JIPMER, Pondicherry, between June 2016 and May 2019. 331 patients with type 2 diabetes mellitus attending the out-patient department without any prior history of thyroid disease, chronic liver disease or acute illness were recruited for the study. All subjects were screened for diabetic complications (nephropathy, neuropathy, retinopathy & cardiovascular disease). Thyroid function test was done in all subjects using chemiluminescent immunoassay method.

Results:

Hypothyroidism was seen in 13.9%, while hyperthyroidism was observed in 3.6% of the study subjects. Thyroid dysfunction was more common among females than males. No correlation was seen between thyroid dysfunction and diabetic complications in the study subjects.

Conclusion:

The prevalence of thyroid dysfunction is 17.5% in patients with type 2 diabetes mellitus. Thyroid dysfunction did not have any correlation with diabetic complications.

Cardiovascular autonomic neuropathy in patients with type 2 diabetes mellitus and its association with serum omentin and leptin

Cardiovascular autonomic neuropathy (CAN) is a major cause of morbidity and mortality in patients with diabetes as it is associated with a high risk of cardiac arrhythmias.

Level of Medication Adherence and Its Associated Factors among Patients Receiving Antiretroviral Therapy at a Tertiary Care Hospital in South India

Introduction: Anti-retro viral drugs are the corner stone of management of human immunodeficiency virus (HIV) infection. Anti-retro viral drugs have been consistently proven to reduce mortality due to HIV. The aim of this study was to identify the level of drug adherence and related challenges for adherence.

Methods: A cross- sectional study was conducted in the antiretroviral therapy (ART) clinic of a tertiary care teaching hospital. Patients who were above 18 years of age, on ART for at least six months and underwent counselling before starting ART were included in the study (n = 143). Demographic variables and clinical profile were noted and level of drug adherence and associated factors were assessed using Morisky Green Levine test and check list respectively. Data was analysed in SPSS version 22.

Results: Most of the study subjects (89.5%) had high level of medication adherence and 10.5% had medium level adherence. Factors contributing to high adherence level were confidentiality and trust among health workers, concerned about their own health, understanding about the prescribed drugs, idea about disease progression, effectiveness and knowledge of anti-retro viral drugs.

Conclusion: Drug adherence was found to be high among HIV- infected patients in this study and various reasons contributed for the high adherence among the study subjects.

Circulating matrix modulators (MMP-9 and TIMP-1) and their association with severity of diabetic retinopathy

AIMS

Diabetic Retinopathy (DR) is the leading cause of vision loss in the working age population. Matrix metalloproteinase-9 (MMP-9) and tissue inhibitor of metalloproteinase-1 (TIMP-1), are molecules involved in extracellular tissue matrix remodelling. They are implicated in the loss of retinal tissue integrity, a major cause of DR, that leads to retinal tissue degradation and apoptosis. This study is therefore, conducted to compare the serum levels of MMP-9 and TIMP-1 in T2DM patients without and with retinopathy, and to evaluate their association with the severity of DR.

MATERIALS AND METHODS

Our study comprised of 2 groups of 41 each. Group A (cases) included T2DM patients with retinopathy and Group B (controls) included T2DM patients without retinopathy. Routine parameters, mainly, fasting blood glucose, and lipid profile were measured using autoanalyzer. Serum MMP-9, TIMP-1, and insulin levels were assessed using ELISA method.

RESULTS AND CONCLUSION

Statistically significant increase in the levels of MMP-9, insulin, fasting blood glucose and lipid profile were observed in the serum of T2DM patients with retinopathy, as compared with those without retinopathy. These results help to conclude that rise in MMP-9, and associated serum markers promote disease progress in DR. These findings suggest that the elevations of our study markers in the serum of the type 2 diabetic patients with retinopathy, as compared to those without retinopathy, play important roles in aggravating tissue matrix degradation, supporting DR disease progression.

Utility of urinary biomarkers as a diagnostic tool for early diabetic nephropathy in patients with type 2 diabetes mellitus

INTRODUCTION

Renal tubulo-interstitial damage has an important role in the pathogenesis of early diabetic nephropathy. Urinary biomarkers can help in the detection of early nephropathy in type 2 diabetic patients. The aim of this study was to estimate the levels of urinary neutrophil gelatinase associated lipocalin (NGAL) and cystatin-C in type 2 diabetic patients with early diabetic nephropathy & to compare them with diabetic patients without nephropathy and to correlate urinary NGAL and cystatin-C levels with microalbuminuria in them.

STUDY DESIGN

Cross-sectional comparative study.

MATERIAL AND METHODS

The study was conducted on 126 patients with type 2 diabetes along with 30 control subjects attending the outpatient care department of a tertiary care teaching hospital. There were 3 study groups-diabetic patients with microalbuminuria, diabetic patients without albuminuria and control subjects who were non-diabetic without any renal disease. Details on duration of diabetes and glycemic status were obtained from the patients. Urine examination was done for subjects in all the groups to look for microalbuminuria along with estimation of NGAL and cystatin-C levels. Samples were stored at -20 °C in the deep freezer.

RESULTS

Urinary NGAL and cystatin-C levels were significantly elevated in patients with microalbuminuria (228.18 & 3.23 ng/ml) as compared to those without albuminuria (146.12 & 2.61 ng/ml) and in control subjects (26.56 & 0.30 ng/ml). Urinary NGAL and cystatin-C levels showed a linear correlation with microalbuminuria in diabetic patients.

CONCLUSION

Urinary NGAL and cystatin-C levels were increased in type 2 diabetic patients with early diabetic nephropathy as compared to patients without nephropathy. Urine NGAL and cystatin-C levels also showed a positive correlation with microalbuminuria (urine albumin-creatinine ratio) in patients with type 2 diabetes mellitus.

Nonalcoholic fatty liver disease in patients with type 2 diabetes mellitus and its association with cardiovascular disease

INTRODUCTION

Non-alcoholic fatty liver disease (NAFLD) encompasses a wide spectrum of liver disease that ranges from hepatic steatosis to non-alcoholic steatohepatitis. Obesity and diabetes mellitus are the prime risk factors for NAFLD. The aim of this study was to find out the prevalence of NAFLD among patients with type 2 diabetes mellitus and to detect the association of NAFLD with cardiovascular disease in them.

STUDY DESIGN

Prospective observational study.

MATERIAL AND METHODS

The study was conducted on 300 patients with type 2 diabetes mellitus attending the outpatient department of a tertiary care teaching hospital. All patients underwent hepatic ultrasonography to look for hepatic steatosis. Among the 300 patients, 124 were divided into NAFLD and non-NAFLD groups based on the ultrasound findings. These patients were subjected to electrocardiogram, 2D echocardiogram, carotid intima media thickness (CIMT) measurement and ankle brachial pressure index measurement along with measurement of markers of oxidative stress.

RESULTS

Hepatic steatosis was present in 61% of diabetic patients in this study. Cardiovascular disease was not found to be significantly associated in diabetic patients with NAFLD. However, cardiovascular risk factors like CIMT, high sensitivity c-reactive protein (hs-CRP) and malondialdehyde (MDA) were elevated in these patients. hs-CRP and MDA levels were found to be significantly associated with the severity of NAFLD.

CONCLUSION

There is a high prevalence of NAFLD in type 2 diabetic patients. No correlation was detected between the presence of NAFLD and cardiovascular disease in them; although there was an association between cardiovascular risk factors and NAFLD.

Procalcitonin levels in sepsis and its association with clinical outcome in southern India

Procalcitonin has been found to be a good marker for the diagnosis of sepsis. However, data on procalcitonin levels to predict the clinical outcome in patients with sepsis are limited. The aim of our study was to estimate serum procalcitonin levels in patients with sepsis and to identify its relationship with the clinical outcome. This was a prospective observational study conducted on 112 patients with sepsis admitted to the medical wards and medical intensive care unit of a tertiary care teaching hospital. Serum procalcitonin was measured at baseline before antibiotic administration and on day 5. The clinical outcome studied was death or survival on day 28. Baseline mean serum procalcitonin was highest in patients with septic shock and lowest in patients having sepsis without organ dysfunction. Mean values of procalcitonin at baseline and on day 5 were significantly higher in non-survivors when compared with survivors. There was a significant difference in the change in procalcitonin levels from baseline to day 5 between survivors and non-survivors, with survivors having declining values on day 5 while non-survivors had increasing values from baseline. The baseline APACHE II and SOFA scores also showed a significant correlation with the baseline procalcitonin level. Declining values of procalcitonin therefore indicate a favourable clinical outcome in patients with sepsis.

A Prospective Study of Comparison of APACHE-IV & SAPS-II Scoring Systems and Calculation of Standardised Mortality Rate in Severe Sepsis and Septic Shock Patients

CONTEXT

Severe sepsis and septic shock are major causes of mortality in the Intensive Care Unit (ICU) Illness Scoring Systems can help in the prediction of outcome of these patients.

AIM

To calculate and compare APACHE-IV and SAPS-II Scoring Systems along with calculation of Standardised Mortality Rate (SMR) in patients of severe sepsis and septic shock in the ICU.

STUDY DESIGN

Observational-analytical prospective study.

MATERIALS AND METHODS

The study was conducted on 84 patients with severe sepsis and septic shock admitted to the Medical ICU of a tertiary care teaching hospital.

RESULTS

Mean of Predicted Mortality Rate (PMR) for APACHE-IV was 37.85% and for SAPS-II, it was 72.36% which shows that APACHE-IV had under-predicted overall mortality while SAPS-II had over-predicted overall mortality of patients with severe sepsis and septic shock. Standardised Mortality Rate for APACHE-IV was 1.60 and for SAPS-II, it was 0.83.

CONCLUSION

Predicted Mortality of APACHE-IV and SAPS-II Scoring Systems did not correlate with the observed mortality for patients with severe sepsis and septic shock.