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Background Diabetes mellitus is one of the serious systemic diseases that may cause general systemic changes, which may be reflected in the oral cavity. The aims of this study were to assess the severity of dental caries, Mutans Streptococci and Lactobacilli in addition to the flow rate and pH among uncontrolled and controlled type 2 diabetic groups in comparison with non-diabetic control group. Materials and Methods Study groups consisted of 25 uncontrolled diabetic patients (HbA1c >7), 25 controlled diabetic patients (HbA1c <7), in addition to 25 nondiabetic healthy looking individuals. Their age was (18–22) years from both genders. The diagnosis and recording of dental caries were according to the severity of dental caries lesion through the application of D1_4MFS and stimulated salivary samples were collected. The salivary flow rate and pH were estimated. Viable count of Mutans streptococci (on Mitis-Salivarius Bacitracin Agar) and Lactobacilli (on Rogosa) was determined. Results The mean values of caries severity were recorded to be highest among study groups compared to the control with statistically highly significant difference (p<0.01). Lowest values of salivary pH and flow rate were among study groups compared to the control with highly significant difference (p<0.01). Concerning Mutans Streptococci and Lactobacilli were found that the mean values of them for uncontrolled diabetic group were highly significant higher than both mean values of controlled diabetic group and control group. Conclusion Dental caries revealed higher percentage of occurrence and severity among uncontrolled diabetic group. Furthermore, there was significant influence of the diabetic and the poor metabolic control on the salivary flow rat, pH, Mutans streptococci and Lactobacilli that have an effect on caries occurrence and severity.
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Objective To investigate the changes of serum homocysteine and it s relationship with oxidative stress and diabetic microangiopathy.Methods Eighty health participants were recruited as control 100 type 2 diabetis patients without diabetic microangiopathy were recruited as DM group,100 type 2 diabetis patients with diabetic nephropathy were recruited as DN group,and 100 type 2 diabetis patients with diabetic retinopathy were recruited as DR group.Their serum levels of homocysteine,malonaldehyde(MDA),superoxide dismutase (SOD)and glutathione(GSH)were measured.Results The homocysteine was(98.86 ± 21.46),(198.95 ±19.35),(138.65 ± 15.25)ng/L in the DM,DN and DR group respectively,which were signigicantly higher than that of(62.48 ± 15.36)ng/L in the control group(F =7.95,P ＜ 0.01).MDA was(17.49 ± 1.64),(22.47 ± 1.86)and(22.47 ± 1.86)mmol/L,which was significantly higher than that of(11.86 ± 0.48)mmol/L in the control group(F =6.89,P ＜0.01).The homocysteine and MDA in the DN and DR group were both significantly higher than those in the DM group(P ＜ 0.01).The SOD and GSH was(107.80 ± 15.62)mg/L and(179.26 ± 25.8)mg/L in the DM group,(79.86 ± 14.63)mg/L and(143.36 ± 21.75)mg/L in the DN group,(89.34 ± 12.75)mg/L and(156.96 ± 19.35)mg/L in the DR group,which were significantly higher than those of(128.32 ± 19.21)mg/L and(237.38 ± 27.31)mg/L in the control group(F =7.89 and 8.76 respectively,P＜0.01).The SOD and GSH in the DN and DR group were both significantly lower than those in the DM group(P ＜ 0.01),and the DN group was significantly lower than the DR group(P ＜ 0.01)Serum homocysteine was positively correlated with MDA(r =0.79,P ＜ 0.05),and negtively correlated with SOD and GSH(r =-0.71 and-0.78,P ＜0.01).Conclusion Diabetic microangiopathy patients have higher serum homocysteine level and severe oxidative stress.Oxidative stress were related to higher serum homocysteine level.The higher serum homocysteine level and oxidative stress might play an important role in development of diabetic Microangiopathy
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@#: Objective To explore the correlation between serum testosterone and type 2 diabetes mellitus in elderly male.Methods 1012 elderly male were divided into 2 groups according to their histry of DM.Blood glucose(FBG,PBG),cholesterol(CHO),triglyceride(TG),blood pressure(DBP,SBP),body mass index(BMI),serum insulin(FINS,PINS),serum testosterone(T)and estradiol(E2)were measured.Results Eldly male with type 2 diabetes showed higher FBG,PBG,TG,FINS,PINS and E2 level than those without DM(P<0.05),and with lower HDL-C and T level(P<0.05).The analysis of multiple stepwise regression showed that T level was correlated with the level of HDL-C,FINS,PINS and TG.Conclusion TG,HDL-C,FINS and PINS level correlate with T level in eldly male with type 2 diabetes mellitus.