Evaluation of selected trace elements in the Moroccan type 2 diabetic patients

Background: Several trace elements have been implicated in the etiology of type 2 diabetes, they can influence the onset or pathogenesis of diabetes in various ways including disruption of normal metabolism of glucose and insulin. The purpose of this work is to evaluate the serum status of copper, zinc, selenium, chromium and manganese in Moroccan type 2 diabetics compared to control group.Methods: Blood samples from 100 type 2 diabetics and 90 control subjects were analyzed for blood glucose, glycated hemoglobin (only for diabetics), lipid status and serum trace elements concentrations.Results: Glucose and triglyceride values were statistically higher in diabetics; while those of HDL-cholesterol were lower. Concentrations of zinc, selenium, chromium, and manganese were lower in diabetics compared to controls. In contrast, copper concentrations were higher.Conclusions: The status of trace elements is impaired in type 2 diabetics compared to a control group.

Serum levels of Selenium and C-reactive protein in comatose patients with severe traumatic brain injury during the first week of hospitalization: case-control study

Introduction: mortality and morbidity related to traumatic brain injuries still remain high in patients. Many authors reported the importance of Selenium in maintaining the integrity of brain functions. This fact is supported by clinical evidence that therapy with selenium supplementation could help patients suffering from brain disorders like neurodegenerative diseases. The aim of our study was to assess the relationship between Selenium concentration in serum and evolution of comatose patients with severe traumatic brain injury, in the first week of admission, and the correlation between selenium and C-reactive protein.Methods: this case-control study was conducted with 64 comatose patients with TBI, in the Department of Anesthesiology and Reanimation, IbnSina University Hospital and Hospital of specialties in Rabat-Morocco, and healthy volunteers recruited in Blood transfusion center of Rabat. Blood sampling was collected from TBI patients, in the first week (3h after admission and each 48h during one week), and from healthy volunteers one time. Concentration of Se in serum was determined by electrochemical atomic absorption spectrometry. Statistical analysis was performed using Statistical software (SPSS) and the cases and controls were compared using the Mann-Whitney U test. A P-value < 0.05 was considered to be statistically significant.Results: comparison selenium concentration in the first day (D0), third day (D2) and fifth day according to the death and survival statue in patients did not show statistical significance (p > 0.05). Selenium concentration of D0 in patients and Selenium concentration in control group also did not show statistical significance (p > 0.05). Similarly, we did not report a correlation between selenium and C-reactive protein.Conclusion: according to our data selenium and CRP may not play a role in progression of coma state in patients with severe traumatic brain injury

Copper, zinc and selenium imbalance in Moroccan haemodialysis patients and its correlation to lipid peroxidation.

Background: Haemodialysis patients are at risk of developing trace elements imbalance and lipid peroxidation. The present study was aimed to assess plasma levels of copper (Cu), zinc (Zn), selenium (Se) and malondialdehyde (MDA) of haemodialysis patients and to investigate the possible effect of haemodialysis on these trace elements and MDA imbalance. Methods: Blood samples of fifty hemodialysis patients and forty healthy controls subjects were analyzed for determination of hemoglobin, albumin, creatinine, urea and high-sensitivity C-reactive protein (hs-CRP). Cu, Zn and Se were determined in plasma (before and after hemodialysis) and erythrocytes and MDA in plasma before and after hemodialysis. Results: The study showed that, plasma Zn and Se concentrations were lower in haemodialysis patients compared to that of healthy controls, while plasma Cu, MDA and Cu/Zn ratio were higher. Plasma Cu/Zn ratios were positively correlated to MDA and weakly correlated to hs-CRP levels whereas plasma Se concentrations were inversely correlated to MDA. In addition, MDA levels increased after haemodialysis session. Conclusions: Based on the results of the present study regarding the imbalance of trace elements in haemodialysis patients, it seems reasonable to periodically assess the trace elements status and consider possible correctional therapy in case of deficiency.