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find Author "WangBin" 2 results
  • The effects of bulbar subconjunctival and periocular injection of dexamethasonone on blood glucose levels of type 1 diabetic mellitus rats

    ObjectiveTo observe the effects of bulbar subconjunctival and periocular injection of dexamethasonone on blood glucose levels of type 1 diabetic mellitus (T1DM)rats. Methods80 healthy adult male Sprague-Dawley rats were randomly divided into GroupⅠ(n=40) and GroupⅡ(n=40). GroupⅠrats received intraperitoneal (IP) injection of streptozotocin to induce T1DM model, while GroupⅡrats received IP injection of citrate buffer solution and was the control group.GroupⅠrats and GroupⅡrats were further divided into four subgroups:A (n=10), a (n=10), B (n=10), and b (n=10). Subgroup-A rats received bulbar subconjunctival injection of dexamethasone, subgroup-a rats received bulbar subconjunctival injection of saline, subgroup-B rats received periocular injection of dexamethasone, subgroup-b rats received periocular injection of saline. After the injection, rats were fasted but could drink water. Tail vein blood samples were collected and the blood glucose level was measured by glucose monitor. ResultsAfter modeling, the blood glucose level of GroupⅠand GroupⅡrats was(9.31±1.79) mmol/L and (5.72±0.80) mmol/L respectively, the difference was statistically significant (P < 0.05). The blood glucose level of GroupⅠrats reached the peak in 3h after injection. In 6-24 h after injection, the blood glucose level of GroupⅠA rats was obviously increased than that of the blood glucose level of Group Ia rats and the difference was statistically significant (P < 0.05). In 3-24 hours after injection, the blood glucose level of GroupⅠB rats was obviously increased than that of the blood glucose level of GroupⅠb rats and the difference was statistically significant (P < 0.05). Comparing the blood glucose level during different injection time between GroupⅠA rats and GroupⅠB rats, between GroupⅠa rats and GroupⅠb rats, the difference was not statistically significant (P > 0.05). In 3-24 hours after injection, the blood glucose level of GroupⅡA rats was obviously increased than that of the blood glucose level of GroupⅡa rats and the difference was statistically significant (P < 0.05); the blood glucose level of GroupⅡB rats was obviously increased than that of the blood glucose level of GroupⅡb rats and the difference was statistically significant (P < 0.05). Comparing the blood glucose level during different injection time between GroupⅡA rats and GroupⅡB rats, between GroupⅡa rats and GroupⅡb rats, the difference was not statistically significant (P > 0.05). ConclusionBulbar subconjunctival injection and periocular injection of dexamethasone could both increase the blood glucose of TIDM rats, but these two injection methods had no differences on the blood glucose level.

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  • Clinical Features of and Prognosis Factors for Spontaneous Intracranial Hypotension

    ObjectiveTo summarize the clinical features of and prognosis factors for spontaneous intracranial hypotension (SIH). MethodsWe continuously registered hospitalized patients diagnosed with SIH from December 1st, 2010 to February 1st, 2014. Etiology information and clinical features were collected at the first day of admission. Routine blood test and lumbar puncture were done as soon as possible. Every patient got position and fluid infusion therapy. During the one-week follow-up, headache level was evaluated with Visual Analogue Scale (VAS). ResultsThere were 110 patients included, and among them, 39(35.5%) were male and 71(64.55%) were female. The age of onset was between 17 and 91 years old with a mean onset age of (42.0±12.4). Besides postural headache, common signs were nausea (68 cases, 61.8%), vomiting (63 cases, 57.3%), dizziness (40 cases, 36.4%), neck pain (27 cases, 24.5%), and tinnitus (23 cases, 20.9%). VAS at baseline was (7.46±0.86), and at the last follow-up, VAS was (3.45±2.17), with an average improvement of 53.75%. Patients with ANA marker positive had better prognosis. ConclusionSIH can accompany serious brain stem and cerebellum signs, and even meningeal irritation. Cerebrospinal fluid (CSF) changes are similar to virus infection with negative serum virus screening. If CSF leak cannot be found on imaging, patients can improve through fluid infusion therapy and postural treatment.

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