جستجوی مقالات مرتبط با کلیدواژه « blood urea nitrogen (bun) » در نشریات گروه « پزشکی »

Recently, it has been paid attention to silver nanoparticles (SNPs), but less attention has been to their toxicity. This study was aimed to investigate acute effects of oral silver nanoparticles (SNPs) on biochemical parameters of kidney (Creatinine and BUN) and blood electrolytes in laboratory male mice (Mus musculus). In this experimental study, A group 45 BALB/c mice about 4 weeks (weighting 24.2±3.0 g) were randomly divided into three groups: 2 nanosilver (SNPs) treatments (1,2) and one control group, each with 15 mice. Once a day at the same time, a volume of 50 microliters from the nanosilver solution (20 and 50 ppm) was administered to the treatment groups while in the untreated (control) group only distilled water was used. Then, on 2, 7, and 14 day, blood sampling was done using cardiac puncture. Serum level of creatinine, BUN, sodium and potassium were measured in the control and treatments (20ppm-treated group and 50ppm-treated group). Data were analyzed using SPSS software and two way ANOVA test at significant level of P<0.05. On day 2 of the experiment, average level of creatinine of 20ppm-treated group was significantly higher than to the control group (P>0.05), but levels of blood urea nitrogen in both 20- and 50ppm-treated groups compared to the control were not significant(P>0.05). In addition, average sodium level of 20ppm-treated group showed a significant increase in relation to the control group on day 14 (P<0.05). Average potassium level of 50ppm-treated group showed a significant decrease in relation to the control group on day 2 (P<0.05). Moreover, average potassium level in 20ppm-treated group on day 7 and in both 20- and 50ppm-treated groups on day 14 decreased significantly(P<0.05). This study showed that orally-administered SNPs may have negative effects on the biochemical parameters of kidney and blood electrolytes. They should be applied cautiously.

Hyperthyroidism is one of the important and common diseases of endocrine glands.Since nowadays many people in the world suffer from hyperthyroidism, it imposes economic load upon societies. According to epidemiological studies and existing evidence and papers, hyperthyroidism has significant effects on the metabolism of various organs especially renal function.Therefore, the main purpose of this study is that we believe evaluation of renal function which has an important role in filtering metabolic waste can be clinically useful.This research has been done to evaluate renal function in patients with hyperthyroidism and normal individuals referred to Bu Ali laboratory in Zanjan city. Patients and In this case-control study, BUN & creatinine indices in two groups of patients with hyperthyroidism and control subjects were evaluated and compared by calorimetric method. Also, complete urinalysis was performed in both groups. 50 patients with hyperthyroidism (mostly female and aged 26-66 years) who were confirmed by an endocrinologist were compared to an equal number of subjects in the control group (mostly female and aged 12-75 years).The collected data was analyzed by independent sample t-test. Statistical analysis by t-test indicated that BUN concentration of serum in normal persons (14.32±3.48) and that of patients (14.89±2.49) had no significant difference(P=0.670 for men and P=0.089 for women), while creatinine concentration of serum in patients compared to normal persons showed significant differences in all sex and age groups(P=0.004 for men and P=0.0001 for women). According to the obtained results, this study indicates that in hyperthyroidism because of an increase in heart output and consequently an increase in GFR and also muscular atrophy, the serum creatinine concentrations have increased significantly but serum BUN concentrations show no significant difference in both groups. Besides, hyperthyroidism has no influence on urine analysis test.