No abstract

Patients with chronic kidney disease (CKD) are at an increased risk of cardiovascular (CVD) morbidity and mortality, mainly due to atherosclerosis. Decreased production or reduced bioavailability of nitric oxide (NO) can result in endothelial dysfunction (ED). Multiple mechanisms are known to cause a state of NO deficiency in patients with CKD. Patients in various stages of CKD grouped as group-1 (CKD stage 1 and 2), group-2 (CKD stage 3 and 4), group-3 (CKD stage 5) and healthy controls were included in the study. Each group of patients and controls comprised 25 subjects. Plasma nitrites, L-arginine, asymmetric dimethyl arginine (ADMA) and citrulline were measured in all the subjects. Patients in all stages of CKD had lower NO and higher ADMA levels compared to controls. Further, group-2 and group-3 patients had lower levels of NO and higher levels of ADMA than group-1 patients. L-arginine levels showed no difference between patients and controls. However, group-3 patients had lower L-arginine levels compared to group-1 patients. Citrulline levels were decreased in group-3 patients. NO production was decreased in patients in all stages of CKD. The decrease could be due to decreased availability of the substrate, L-arginine or due to an increased ADMA, a potent inhibitor of endothelial NO synthase. Therapeutic interventions directed towards improvement of NO production in addition to management of other CVD risk factors may prevent development of ED and facilitate proper management of CKD patients who are at increased risk for CVD.

Objective:To study the prevalence, clinical features, electrophysiological features, and severity of peripheral neuropathy in predialysis chronic kidney disease (CKD) patients with respect to severity of renal failure and presence of diabetes mellitus.Materials and Methods:Between May 2015 and December 2016, 200 predialysis CKD patients were assessed prospectively.Results:The prevalence of peripheral neuropathy in predialysis CKD patients in the present study was 45% based on clinical symptoms and 90% electrophysiologically. Mean age of 200 predialysis CKD patients who participated in the study was 53.2 ± 13.2 years. One hundred and thirty-six (68%) patients were male and 64 (32%) patients were female. Mean duration of disease was 2.2 ± 1.6 years. Nearly 45% patients of patients had asymptomatic peripheral neuropathy in the present study, which was more common in mild-to-moderate renal failure group. One hundred twenty-six patients (63%) had definite damage and 54 patients (27%) had early damage. In mild-to-moderate renal failure (n = 100) and severe renal failure patients (n = 100), 88% and 92% had significant peripheral neuropathy, respectively. Most common nerves involved were sural nerve, median sensory nerve, and ulnar sensory nerve. Diabetic patients (97%) showed more severe and high prevalence of peripheral neuropathy when compared to nondiabetic patients (83%). Most common patterns were pure axonal sensorimotor neuropathy and mixed sensorimotor neuropathy.Conclusion:Peripheral neuropathy is common in predialysis patients, prevalence and severity of which increases as renal failure worsens. Predialysis patients with diabetes show higher prevalence and severity of peripheral neuropathy when compared with nondiabetics.

Isoniazid and rifampicin are used for management of tuberculosis. Acute poisoning due to isoniazid overdose is associated with repetitive generalized tonic-clonic seizures and severe metabolic acidosis. In toxic doses, rifampicin is known to produce hepatic, renal, hematological disorders, and convulsions. Sometimes, it may produce red man syndrome. We report a case of fatal poisoning with isoniazid and rifampicin. The case was characterized by late presentation, lactic acidosis, and renal failure.

Context: Investigations on burden, coping, and quality of life (QOL) in caregivers of hemodialysis (HD) and peritoneal dialysis (PD) undergoing and renal transplant (RT) patients may lead to the well-being of caregivers, and these studies are sparse and nil in Indian context. Aim: This study aims to comparatively evaluate the burden, coping mechanisms, and QOL among caregivers of HD and PD undergoing and RT patients. Setting and Design: Tertiary care hospital, cross-sectional and descriptive study. Subjects and Methods: Burden, coping mechanisms, and QOL in caregivers of HD and PD undergoing and RT patients were investigated using Zarit burden interview, revised ways of coping and short-form 36 in 30 each caregivers of HD and PD undergoing and RT patients. Results: Moderate to severe burden, mild to moderate burden, and no burden were observed in the majority of caregivers of HD and PD undergoing and RT patients. Significantly higher mean burden score in caregivers of HD undergoing than RT patients ( P < 0.01); accepting responsibility in caregivers of RT than PD undergoing patients; social functioning in caregivers of HD than PD undergoing patients; and general health in caregivers of RT than HD undergoing patients, was observed. Lower physical component was common in each group, whereas accepting responsibility in HD, self-controlling in PD, and age and escape avoidance in RT were found to be the specific predictors of the burden score. Conclusions: Caregivers of HD and PD undergoing and RT patients have different levels of burden, use different mechanisms to cope, and showed different predictors of burden score.