Surgical correction of conjunctival sac narrowing after orbital implantation using polyester fiber heart patches / 南方医科大学学报

<p><b>OBJECTIVE</b>To test the feasibility of correcting conjunctival sac narrowing following orbital implantation using polyester fiber heart patches instead of the skin autograft.</p><p><b>METHODS</b>Twelve patients of conjunctival sac narrowing after orbital implantation (including 3 with orbital implant exposure) admitted in Nanfang Hospital between 2012 and 2016 received surgical correction of the conjunctival sac using polyester fiber heart patches. During the surgery, the central conjunctival sac was opened, the exposed area was covered with suitable polyester fiber heart patches, and the palpebral margin was sutured.</p><p><b>RESULTS</b>Three months after the operation, 10 patients showed improved appearance after implantation of the prosthetic eye. Two patients received a second operation to remove the patches due to graft rejection and infections and skin autograft was implanted for reconstruction of the conjunctival sac.</p><p><b>CONCLUSION</b>Polyester fiber heart patches are ideal materials for repairing Conjunctival sac narrowing and orbital implant exposure, but this approach is not suitable in cases of severe narrowing or occlusion of the conjunctival sac.</p>

Efficacy and safety evaluation of two insulin treatment protocols using a continuous glucose monitoring system / 南方医科大学学报

<p><b>OBJECTIVE</b>To evaluate the efficacy and safety of two insulin treatment protocols using a continuous glucose monitoring system.</p><p><b>METHODS</b>Type 2 diabetic patients mellitus with unsatisfactory control of fasting blood glucose by oral antidiabetic drugs were included in the study. The patients were randomized into two groups to receive bedtime injection of glargine and oral antidiabetic drugs (group A) or injection of Novolin 30 R twice a day (group B) for 12 weeks. The insuline dose was adjusted according to fasting blood glucose till discharge. Continuous glucose monitoring system was used to record the average blood glucose, fasting blood glucose, 2 h postprandial blood glucose, AUCPG ≥ 10.0 mmol/L%, HbA1c and C peptide, bedtime blood glucose, 3:00 AM blood glucose, the incidence of hypoglycemia and body mass index.</p><p><b>RESULTS</b>The average blood glucose, fasting blood glucose, 2 h postprandial blood glucose, AUCPG ≥ 10.0 mmol/L% and HbA1c was significantly decreased and C peptide significantly increased in the two groups after the treatments. The patients in glargine group showed better improvement with a significantly lower incidence of hypoglycemia than those in Novolin 30 R group. BMI underwent no significant changes in the two groups after the treatments.</p><p><b>CONCLUSION</b>Glargine therapy better mimics the physiological insulin secretion patterns, and when combined with oral antidiabetic drugs, can be more effective and safer than premixed insulin.</p>

Epidemiological investigation of diabetes and prediabetes in community residents in the suburbs of Guangzhou / 南方医科大学学报

<p><b>OBJECTIVE</b>To identify the prevalence and risk factors of diabetes and prediabetes in the community residents above 18 years old in the suburbs of Guangzhou.</p><p><b>METHODS</b>Between April and May in 2008, the residents above 18 years living in 6 communities of Guangzhou for 5 or more years were sampled with multistage clustering sampling. The sampled residents were surveyed by questionnaires, and physical examination and glucose determination were carried out.</p><p><b>RESULTS</b>A total of 1532 residents were sampled. The incidence of diabetes mellitus in these community residents was 8.46%, and that of impaired glucose regulation was 6.59%. Age, body mass index, family history of diabetes mellitus, case history of hypertension, hyperlipidemia, hypertension and smoking were all the independent risk factors for impaired glucose regulation and diabetes mellitus.</p><p><b>CONCLUSION</b>Diabetes and prediabetes are prevalent in the community residents in Guangzhou. Controlling the risk factors such as obesity, hypertension, lipid metabolism disorder among the residents above 40 years with a family history of diabetes mellitus and hypertension is key to prevention of impaired glucose regulation and diabetes mellitus.</p>

Dose-effect relationship of irbsartan with the changes in the renal tissue structure in diabetic rats / 南方医科大学学报

<p><b>OBJECTIVE</b>To investigate the relationship between the dosage of irbesartan and the renal tissue structure in diabetic rats.</p><p><b>METHODS</b>Male Wistar rats was given a single intraperitoneal dose (mg/kg) of streptozotocin to induce diabetes. The diabetic rats were randomized into 4 groups and received 4 weeks later 25 mg/kg (n=9), 50 mg/kg (n=9), 200 mg/kg (n=9) irbesartan intragastrically, or equal volume of water (model group, n=11) on a daily basis. Seven normal rats receiving with equal volume of water served as the normal control. All the rats were sacrificed after 8 weeks and the 24-hour albumin excretion, renal mass index and the volume of the glomerulus were measured.</p><p><b>RESULTS</b>The 24-hour albumin excretion, renal mass index and volume of the glomerulus in the 3 irbesartan groups were significantly decreased as compare with those in the model group; the reductions in 50 and 200 mg/kg irbesartan groups were significant greater than those in 25 mg/kg irbesartan group.</p><p><b>CONCLUSION</b>Irbesartan can decrease the 24-hour urinary albumin excretion and relive glomerulopathy in diabetic rats. Within a certain dose range, irbesartan produces a dose-dependent protective effect on the renal structures in the diabetic rats.</p>

Sweat function evaluation for early diagnosis of diabetic peripheral neuropathy / 南方医科大学学报

<p><b>OBJECTIVE</b>To evaluate the clinical value of sweat function examination in early diagnosis of diabetic peripheral neuropathy (DPN).</p><p><b>METHODS</b>Ninety-eight hospitalized type 2 diabetic patients with or without DPN (DN and DC groups) according to Michigan Diabetic Neruopathy Score (DNS) and 40 healthy volunteers (NC group) were evaluated for their sweat function of the feet in relation to the peripheral autonomic nerve with sweat printing method using Neuropad. The Neuropad color-changing time was recorded to assess the sensitivity and specificity of sweat printing methods relative to DNS for DNP evaluation, and the correlation of the Neuropad color-changing time to DNS score was analyzed.</p><p><b>RESULTS</b>The average Neuropad color-changing time was 4.0-/+0.6, 4.3-/+1.2 and 23.0-/+6.1 min in NC, DC, and DN groups, respectively, showing significant differences between the 3 groups (P<0.05). The morbidity rate detected by sweat printing method was 62.2%, similar to that detected by DNS (57.1%, P>0.05). The sensitivity of the sweat printing method for DPN diagnosis was 92.8%, with specificity of 78.5%, positive predictive value of 93.2%, and negative predictive value of 78.6%. DNS showed significant positive correlation with the Neuropad color-changing time (r=0.46, P<0.05).</p><p><b>CONCLUSION</b>Sweat printing method provides an objective, simple and reliable method for sweat function evaluation of the feet of type 2 diabetic patients to help in early DPN diagnosis, and quantification of the results of sweat printing method can be indicative of the DPN severity.</p>