Objective:To explore the effect and mechanism of ganglioside for hypoxia injury in newborn.Methods:A total of 200 cases of newborn patients in our hospital were analyzed. All the patients were divided into 4 groups, control and ganglioside groups with low, medium and high dose. The neonatal behavioral neurological assessment scores were counted in each group and the serum inflammatory factors and transforming growth factor-β (TGFβ)/Smad parameters were detected.Results:The neonatal behavioral neurological assessment scores were increased after ganglioside treatment and the serum interleukin (IL) 2/10, hypoxia inducible factorαand Smad1, Smad3 as well as TGFβ was decreased dramatically when compared with control group.Conclusions:Ganglioside exerts an effective effect on cerebral hypoxia in newborn mainly by inhibiting the TGFβ/Smad signaling pathway.

作者： 刊期： 2015年第11期

Objective:To study the vitamin D3 levels in primary Sjogren's syndrome patients and its correlation with severity and immune function.Methods:Active pSS patients, stable pSS patients and healthy volunteers were chosen for study. Peripheral blood was collected, mononuclear cells were isolated and percentages of CD27high plasma cells and CD27+ memory B cells were detected; serum was collected and contents of 1,25(OH)2D3, TNF-α, IL-6, IL-10 and IL-17 were detected.Results:(1) 1,25(OH)2D3 contents in serum as well as CD27high plasma cell and CD27+ memory B cell contents in peripheral blood of pSS group were lower than those of control group; serum TNF-α, IL-6 and IL-17 contents were higher than those of control group and IL-10 contents were lower than those of control group; (2) 1,25(OH)2D3 contents in serum as well as CD27high plasma cell and CD27+ memory B cell contents in peripheral blood of active pSS patients were lower than those of stable pSS patients; serum TNF-α, IL-6 and IL-17 contents were higher than those of stable pSS patients and IL-10 contents were lower than those of stable pSS patients; (3) 1,25(OH)2D3 level was positively correlated with contents of CD27highplasma cells, CD27+ memory B cells and IL-10, and negatively correlated with TNF-α, IL-6 and IL-17 contents.Conclusion:Abnormal reduction of Vitamin D3 levels is involved in the pathogenesis of primary Sjogren's syndrome and closely related to the severity and immune function of the disease.

作者： 刊期： 2015年第11期

Objective:To explore the feasibility and effectiveness of 64 slice spiral CT in evaluating the patency of coronary artery after stent implantation.Methods:The 64 slice spiral CT image data of 125 patients after coronary artery stent implantation were collected, meanwhile, the image data of 25 patients underwent coronary angiography were also collected. The feasibility and accuracy of 64 slice spiral CT coronary artery stent imaging were comparatively analyzed. Results: The 64 slice spiral CT imaging quality with a stent diameter greater than 3.00 mm was significantly superior to that with a diameter of 2.25-3.00 mm. The CT imaging quality in the left main coronary artery and anterior descending artery was significantly higher than that in the left circumflex coronary artery. The CT imaging quality in the left main coronary artery was significantly higher than that in the right coronary artery. The CT reconstruction imaging quality in the drug coating stent was significantly superior to that in the bare metal stent. The sensitivity of 64 slice spiral CT was 100.00%, and the accuracy was 100.00%. In detecting the coronary artery with occlusion and stenosis (stent stenosis greater than 50%), the sensitivity was 90.00%, the false negative rate was 10.00%, and the positive predicative value was 100.00%.Conclusions:The effect of 64 slice spiral CT coronary imaging in evaluating the patency of coronary artery after stent implantation is highly consistent with that by coronary angiography, with a simple operation, less risk, and low cost, and thus, it can be completely taken as the imaging method in evaluating the patency of coronary artery after stent implantation.

作者： 刊期： 2015年第11期

Objective:To detect serum chemokine RANTES content in patients with acute coronary syndrome and analyze its relationship with degree of inflammation and myocardial injury. Methods:116 cases of acute coronary syndrome (ACS) patients treated in our hospital from July 2012 to July 2014 were chosen as study group and divided into low-risk group (48 cases), moderate-risk group (33 cases) and high-risk group (35 cases) according to risk stratification; 109 cases of healthy people receiving physical examination during the same period were enrolled in healthy control group. Serum RANTES contents as well as levels of inflammatory cytokines and myocardial injury indicators in all groups were compared and the correlation was further analyzed.Results:Serum RANTES contents as well as levels of inflammatory factors and myocardial injury markers in ACS patients were all significantly higher than those in control group (P<0.05), and with the increase of coronary risk stratification, serum RANTES contents as well as levels of inflammatory factors and myocardial injury markers further rose (P<0.05); serum RANTES contents in ACS patients were positively correlated with levels of inflammatory cytokines and myocardial injury indicators.Conclusion: Increased levels of serum RANTES is one of the important factors contributing to the occurrence of ACS; it is positively correlated with levels of inflammatory cytokines and severity of myocardial injury in patients, and can guide clinical treatment and judge prognosis.

作者： 刊期： 2015年第11期

Objective:To investigate protective effects ofMallotus furetianus(M. furetianus)on functions of endothelial progenitor cells (EPCs) in atherosclerotic rats.Methods:Atherosclerosis was established by intraperitoneal injection of vitamin D3 combined with high fat diet for 9 weeks. Extracts ofM. furetianus were given to prevent damage of EPCs in dose of 0.081 g/kg and 0.026 g/kg. Rats were sacrificed, and then mononuclear cells were isolated from bone marrow to culture EPCs and test the functions of EPCs.Results:M. furetianus can improve the capacities of EPCs on proliferation, migration, adhesion, and tubule formation in doses of 0.081 g/kg; improve adhesion, and tubule formation in dose of 0.026 g/kg in atherosclerotic rats. Conclusion:M. furetianus can protect functions of EPCs in atherosclerotic rats.

作者： 刊期： 2015年第11期

Objective:To explore molecular mechanism and biological function of miR-155 and its target genes on endometriosis.Methods: The expression of miR-155 in Ems patient and healthy control were assayed by RT-PCR. After miR-155 mimic and inhibitor were transfected into Ems endometrial cells for 48 h, the viability of cell was detected by MTT assay. Transwell migration and invasion assay were used to detect cell migration and invasion. The expression of cell apoptotic protein Bax and Bcl-2, matrix metalloproteinase (MMP 2) and MMP 9 were assayed by western blot.Results: The expression of miR-155 in Ems patient was more than that in the health control (P<0.01). After miR-155 mimic and inhibitor were transfected into Ems endometrial cells for 48 h, miR-155 over-expression could increase cell viability, and promoted cell migration and invasion, which was related to down-regulation of Bax along with up-regulation of Bcl-2, MMP 2 and MMP 9.Conclusion:These results suggested miR-155 lower expression inhibit endometrial cell proliferation and migration of the Ems.

作者： 刊期： 2015年第11期

Objective:To study the expression of aminopeptidase N (CD13) in renal carcinoma and the effect of CD13 expression vector transfection on biological behavior of cancer cells.Methods:Renal carcinoma tissue and normal kidney tissue were collected and APN (CD13) contents in tissue were detected; renal carcinoma cell lines kevt-3 were cultured, 0 μg/mL, 10 μg/mL, 20 μg/mL, 40 μg/mL and 80 μg/mL of CD13 expression vector were transfected, and then migration ability, ATP generation capacity, and mRNA contents of migration and angiogenesis genes in cells were detected.Results:mRNA contents of APN in renal carcinoma tissue were higher than those in normal kidney tissue; the higher the clinical stage and pathological grade were, the higher the mRNA contents of APN in renal carcinoma tissue were; mRNA levels of APN in renal carcinoma tissue with lymph node metastasis were higher than those without lymph node metastasis;CD13 expression vector transfection could dose-dependently increase kevt-3 cell migration rate, ATP generation amount as well as mRNA contents of VEGF, HIF-1α, MMP9 and MMP10.Conclusion: Expression of aminopeptidase N (CD13) in renal carcinoma tissue abnormally increases; overexpression of CD13 can promote renal carcinoma cell migration and increase ATP generation as well as VEGF, HIF-1, MMP9 and MMP10 expression.

作者： 刊期： 2015年第11期

Objective:To explore the correlation of expressions of MDR1/P-gp and CerbB-2 in the colorectal cancer tissues and their clinical significance.Methods:A total of 86 colorectal cancer tissues specimens were included in the study. The immunohistochemical S-P method was used to detect the expressions of P-gp and CerbB-2, and their correlations were analyzed.Results:The positive rates of the expressions of MDR1/P-gp and CerbB-2 were 36% (31/86) and 28% (24/86), respectively. The positive expression rate of CerbB-2 in the colorectal cancer tissues at a clinical stage of III was significantly higher than that at stage I and II. The positive expression rates of MDR1/P-gp and CerbB-2 in the colorectal cancer tissues with axillary lymph node metastasis were significantly higher than those in the tissues without axillary lymph node metastasis. In the P-gp positive expression group, the positive rate of CerbB-2 was 75.5% (37/49), while the negative rate of CerbB-2 was 24.48% (12/49), and the difference was statistically significant (P<0.01). P-gp had a certain positive correlation with the positive expression rate of CerbB-2. Conclusions:P-gp and CerbB-2 play a certain role in the occurrence of multidrug resistance of colorectal cancer, and their expressions are correlated; therefore, the combination detection can provide an evidence for the chemotherapy choice of colorectal cancer.

作者： 刊期： 2015年第11期

Objective:To study the role of miR-29b in Docetaxel caused dampened metastasis of gastric cancer cells.Methods: After treated by Docetaxel, the invasion and migration of SGC7901 cell were studied by Transwell and Wound Healing Assay. miR-29b levels was detected by qRT-PCR and its targets were detected by Western blot after SGC7901 cell was treated by Docetaxel. When transfected by miR-29b mimic, the invasion and migration of SGC7901 cell were studied by Transwell and Wound Healing Assay. Similarly, when treated by Docetaxel and anti-miR-29b simultaneously, the invasion and migration of SGC7901 cell were also studied by Transwell and Wound Healing Assay.Results:Docetaxel could inhibit the invasion and migration of SGC7901 cell; miR-29b was upregulated by Docetaxel in SGC7901 cell; miR-29b could inhibit the invasion and migration of SGC7901 cell; When miR-29b could not be upregulated by Docetaxel, the effects of Docetaxel on invasion and migration of SGC7901 cell would be dampened.Conclusion:Docetaxel upregulated miR-29b contributes to dampened metastasis of gastric cancer cells.

作者： 刊期： 2015年第11期

Objective:To explore the influence of inflammation factors and intestinal mucosal barrier function on severe acute pancreatitis patients treated with bifidobacterium triple viable capsules.Methods:88 cases severe acute pancreatitis patients were divided into observation group and control group according to admission order, 44 cases in each group, all patients were given conventional treatment, on this base, patients in observation group were treated by oral bifidobacterium triple viable capsules, they were treated for one week, detected the serum inflammatory factors: the tumor necrosis factor alpha (TNF-α), interleukin 6 (IL-6) and C-reactive protein (CRP) and intestinal mucosal barrier function index: endotoxin, diamine oxidase (DAO), D-lactic acid, urinary lactulose/mannitol (L/M) in the two groups before and after treatment.Results:The levels of TNF-α, IL-6 and CRP in two groups after treatment were significantly reduced than before treatment, and after treatment the levels of TNF-α, IL-6 and CRP in observation group was significantly lower than that of the control group, all the difference was statistically significant; The levels of endotoxin, DA, D-lactic acid, L/M in two groups after treatment were significantly reduced than before treatment, and the levels of endotoxin, DA, D-lactic acid,L/M after treatment in observation group was significantly lower than that of the control group, the difference was statistically significant.Conclusion: Based on conventional treatment combined bifidobacterium triple viable capsules can significantly reduce inflammation in patients with severe acute pancreatitis, it can protect the intestinal mucosal barrier function, and has important clinical significance.

作者： 刊期： 2015年第11期

Objective:To study the protective effect of diammonium glycyrrhizinate enteric-coated capsule on hepatic injury of leukemia tumor-bearing mice after chemotherapy.Methods: C57 mice were selected as research subjects, leukemia tumor-bearing mouse model was built, both chemotherapy group and treatment group received cyclophosphamide chemotherapy, and treatment group received diammonium glycyrrhizinate enteric-coated capsule treatment. Then liver enzyme contents in serum as well as percentage of apoptosis cells and oxidative stress product contents in liver tissue were detected.Results:Serum ALT, AST,α-GST and GLDH contents of chemotherapy group were higher than those of control group, and percentage of apoptosis cells as well as MDA, AOPP and 8-OhdG contents in liver tissue were higher than those of control group; serum ALT, AST,α-GST and GLDH contents of treatment group were lower than those of chemotherapy group, and percentage of apoptosis cells as well as MDA, AOPP and 8-OhdG contents in liver tissue were lower than those of chemotherapy group.Conclusion:diammonium glycyrrhizinate enteric-coated capsule has protective effect on hepatic injury of leukemia tumor-bearing mice after chemotherapy; mechanism of the protective effect may be reducing the oxidative stress and inhibiting hepatocyte apoptosis.

作者： 刊期： 2015年第11期

Objective:To study the hemodynamic condition of uterine artery and renal artery in preeclampsia patients and its relationship with endothelial function and invasive function. Methods:Preeclampsia puerperas were enrolled in observation group of the research, including 20 cases each with mild preeclampsia, moderate preeclampsia and severe preeclampsia; healthy puerperas were enrolled in control group. Then color Doppler ultrasound was used to detect hemodynamic parameters of uterine spiral artery and bilateral renal interlobar artery, enzyme-linked immunosorbent assay was used to detect endothelial function indexes in serum, and PCR was used to detect invasive function parameters in placenta.Results: S/D, PI and RI of uterine spiral artery and bilateral renal interlobar artery in mild, moderate and severe preeclampsia patients were all higher than those of control group; the more severe the preeclampsia condition was, the higher the S/D, PI and RI of uterine spiral artery and bilateral renal interlobar artery were; mRNA contents of Cst L, Cst D and MMP-9 in placenta of mild, moderate and severe preeclampsia patients were lower than those of control group, and mRNA contents of RECK as well as serum sFlt-1, sEng, AT1-AA and AngII contents were higher than those of control group; the more severe the disease degree was, the lower the mRNA contents of Cst L, Cst D, and MMP-9 were, the higher the mRNA contents of RECK as well as serum sFlt-1, sEng, AT1-AA and AngII contents were.Conclusion:Resistance of uterine artery and renal artery in preeclampsia patients increases, and it is closely related to endothelial dysfunction and invasive function loss.

作者： 刊期： 2015年第11期

Objective:To explore the therapeutic effect of different neoadjuvant chemotherapy on the locally cervical cancer.Methods:A total of 85 patients with cervical cancer for the initial treatment who were admitted in our hospital from January, 2011 to January, 2013 were included in the study and divided into the observation group and the control group according to different chemotherapy regimens. The way of drug administration is by transcatheter arterial chemoembolization (TACE). The patients in the observation group were given Taxol in combined with carboplatin for neoadjuvant chemotherapy, while the patients in the control group were given irinotecan in combined with carboplatin. The remission degree of clinical symptoms, chemotherapeutic effect, toxic and side effect, and operation evaluation 14 and 20 days after chemotherapy were evaluated.Results:The comparison of clinical symptom remission between the two groups was not statistically significant. The occurrence rate of myelosuppression in III-IV degree in the observation was significantly higher than that in the control group, but the occurrence rate of diarrhea was significantly lower than that in the control group. The comparisons of operation time and intraoperative amount of bleeding after chemotherapy between the two groups were not statistically significant. The comparisons of the occurrence rates of parametrial infiltration and lymphatic metastasis and the muscular layer invasion depth were not statistically significant.Conclusions:Arterial embolism neoadjuvant chemotherapy can obviously shorten the tumor volume in patients with local cervical cancer, relieve the clinical symptoms, and enhance the living qualities, but in the clinical application, appropriate chemotherapy regimen should be chosen according to the specific condition.

作者： 刊期： 2015年第11期

Objective:To study the correlation of HIFs/PPAR signaling pathway activation degree and lipid metabolism in liver tissue of alcoholic fatty liver rat model.Methods:Adult SD rats were selected and alcoholic fatty liver rat models were established by alcohol administration and high-fat diet feeding. Liver tissue was collected and contents of HIF-1α, PPARγ and lipid metabolism-related enzymes were detected; serum was collected and contents of lipid metabolism indexes and liver cell damage indexes were detected.Results:(1) one week, two weeks, three weeks and four weeks after models were established, HIF-1αα in livers of the model group showed an increasing trend and PPARγ showed a decreasing trend; HIF-1α content was higher than that of the control group and PPARγ content was lower than that of the control group; (2) contents of apoCII, apoCIII,α-GST and GLDH in serum as well as levels of FAT, FABP1, FAS, ACC and ACAT-2 in liver tissue of the model group all significantly increased, and were positively correlated with HIF-1α and negatively correlated with PPARγ.Conclusion:Transcription factor HIF-1α content abnormally increases and PPARγ content abnormally decreases in liver tissue of alcoholic fatty liver rat models; it results in abnormal lipid metabolism and liver cell damage through increasing the expression of lipid metabolism-related enzymes in the liver.

作者： 刊期： 2015年第11期

Objective:To through counting serum high-sensitivity C-reactive protein (hs-CRP), prealbumin (PAB) and the ratio of the two to analyze its predictive value on acute myocardial infarction complicated with postoperative acute heart failure.Methods: 100 cases of acute myocardial infarction patients treated in our hospital from January 2013 to January 2015 were selected as research objects. Serum PAB and hs-CRP values on the next day of admission as well as after PCI surgery were recorded respectively. Then PAB data change before and after surgery, PAB and hs-CRP change with or without postoperative cardiovascular events (heart failure) as well as the value of the ratio of hs-CRP and PAB on prediction of acute myocardial infarction complicated with acute heart failure was compared.Results:Postoperative PAB in 100 cases of myocardial infarction patients increased from (0.19±0.05) to (0.24±0.06), and the differences had statistical significance; 40 cases had postoperative cardiovascular events (heart failure), incidence being 40%; PAB in patients without postoperative cardiovascular events (heart failure) increased significantly, hs-CRP decreased significantly, and the differences had statistical significance; Logistic regression univariate analysis showed that acute myocardial infarction complicated with heart failure was associated with diabetes, PAB, hs-CRP and In (hs-CRP/PAB), and multivariate analysis showed that it was associated with In (hs-CRP/PAB). Conclusion:hs-CRP in patients with acute myocardial infarction increases, PAB decreases, postoperative PAB increases relatively, hs-CRP and PAB data shows different degrees of change with or without postoperative cardiovascular (heart failure), and In (hs-CRP/PAB) is associated with acute myocardial infarction complicated with heart failure and can be used as its prediction index.

作者： 刊期： 2015年第11期

Objective:To explore the diagnostic value of the combined detection ofβ2-MG, AFP, SF, and CEA in the primary hepatic cancer (PHC).Methods:A total of 70 HPC patients, 30 hepatic cirrhosis patients, and 30 healthy individuals were included in the study. A volume of 3 mL morning fasting blood from the patients in the three groups was taken. The radioimmunoassay was used to detect the contents of serumβ2-MG, AFP, SF, and CEA.Results: The contents of serumβ2-MG, AFP, SF, and CEA in the PHC group were significantly higher than those in the hepatic cirrhosis group and the control group (P<0.05). The contents of serumβ2-MG, AFP, and CEA in the hepatic cirrhosis group were significantly higher than those in the control group (P<0.05). The comparison of serum SF content between the hepatic cirrhosis group and the control group was not statistically significant. The detection positive rates of serumβ2-MG, AFP, SF, and CEA in the PHC patients were 81.42%, 65.71%, 51.43%, and 12.86%, respectively. The positive rate by the combined detection of four tumor markers could reach 97.14%, and was significantly higher than that by a unique detection. The comparison of serumβ2-MG and AFP in the PHC patients was not comparable.Conclusions:The contents of serumβ2-MG, AFP, SF, and CEA in the PHC patients are significantly higher than those in the hepatic cirrhosis patients and the healthy individuals. The combined detection of serumβ2-MG, AFP, SF, and CEA can contribute for the screening of PHC, and reduce the missed diagnosis rate of PHC. Serumβ2-MG is an independent tumor marker with no relation to AFP, SF, and CEA.

作者： 刊期： 2015年第11期

Objective:To investigate and study the influenced state of total laparoscopic hysterectomy for the blood viscosity and erythrocyte immune state of patients.Methods:A total of 58 patients who were treated with total hysterectomy in our hospital from June 2013 to February 2015 were the study subjects, the 29 cases in the control group were treated with routine open hysterectomy operation according to the operation types, the 29 cases in the observation group were treated with laparoscopic hysterectomy operation, then the preoperative and postoperative blood viscosity and erythrocyte immune state indexes of two groups were compared.Results:The blood viscosity indexes of the observation group at different postoperative time were all lower than the indexes of the control group, the erythrocyte immune state indexes were all better than those of the control group, and the detection results of two groups at the third day after the operation were all obviously worse than those at other times, their differences were statistically significant.Conclusions:The bad influence of total laparoscopic hysterectomy for the blood viscosity and erythrocyte immune state of patients are relatively smaller, and those postoperative indexes in recovery of patients are faster.

作者： 刊期： 2015年第11期

Objective:To explore the effect of rosuvastatin on serum inflammatory factors, oxidative stress and MPO, MMP-9 of patients with chronic heart failure (CHF).Methods:140 cases with CHF were selected as the study case, using the single blind method and were randomly divided into two groups, including 70 cases in the control group were treated with routine department of internal medicine treatment, while 70 patients in the observation group were treated with rosuvastatin on the basis of conventional department. The serum inflammatory factors, oxidative stress and MPO, MMP-9 of changes were detected and compared.Results:After treatment, the observation group in patients with LVEDD (36.62±2.56) mm was significantly reduced compared with before treatment, LVEF (57.22±2.80)% and E/A ratio (1.38±0.04) were significantly increased compared with before treatment, and the each index compared with the control group had significant difference. After treatment, the observation group in patients with IL-6 (5.44±0.74) ng/L, TNF alpha (3.44±0.43) ng/L and hs-CRP (18.82±2.10) mg/mL compared with those before treatment significantly reduced, and the each index compared with the control group had significant difference (P<0.05). After treatment, the observation group in patients with MDA (4.78±0.60) μmol/mL, MPO (481.14±22.22) mg/L and MMP-9 (62.30±6.33) ng/mL was significantly reduced compared with before treatment, SOD (125.35±6.43) U/mL compared with increased significantly, and the each index compared with the control group had significant difference.Conclusion:Conventional therapy combined with rosuvastatin on the effect of CHF is significant, and can significantly improve heart function, inhibit oxidative stress and anti-inflammation, and the clinical application value is higher.

作者： 刊期： 2015年第11期

Objective:To study the miRNA-21 content in cervical cancer tissue and analyze its downstream target molecules.Methods:Patients with different FIGO stages of cervical cancer and healthy subjects were selected, cervical cancer tissue and normal cervical tissue were collected, and contents of miRNA-21 and apoptotic genes were detected; cervical cancer SiHa cells were cultured, miRNA-21 mimics and inhibitors were transfected, and then apoptotic gene contents were detected.Results:miRNA-21 contents in different stages of cervical cancer tissue were all higher than those in normal cervical tissue, mRNA contents of p16ink4a, ASPP1, Fas and GRIM-19 were lower than those in normal tissue, and mRNA contents of p16ink4a, ASPP1, Fas and GRIM-19 were negatively correlated with miRNA-21 contents; after miRNA-21 mimics were transfected, mRNA contents of p16ink4a, ASPP1, Fas and GRIM-19 significantly decreased, and after miRNA-21 inhibitors were transfected, mRNA contents of p16ink4a, ASPP1, Fas and GRIM-19 significantly increased.Conclusion:miRNA-21 contents in cervical cancer tissue significantly increase; downstream target genes of this miRNA may be apoptotic genes p16ink4a, ASPP1, Fas and GRIM-19.

作者： 刊期： 2015年第11期

Objective:To study the killing effect of different doses of preoperative iodine 131 therapy on thyroid cancer cells and its effect on salivary gland function.Methods:Patients diagnosed with thyroid cancer in our hospital from May 2013 to June 2014 were enrolled for study, given preoperative iodine 131 therapy and randomly divided into control group, low dose group, middle dose group and high dose group. Then cell apoptotic rate, cell cycle, cancer promoting gene and cancer suppressor gene expression in thyroid carcinoma tissue as well as salivary gland function were detected.Results: (1) cancer cell killing effect: compared with control group, cell apoptotic rates and number of cells in G0/G1 phase of low dose group, middle dose group and high dose group increased, number of cells in S and G2/M phase decreased, BRAF, Livin, MCM7 and CDK2 expression decreased, CCNG2 and PTEN expression increased; cell killing effect of middle dose group and high dose group were better than that of low dose group, and cell killing effect of middle dose group and high dose group had no differences; (2) salivary gland function: compared with control group, UI and SR in bilateral parotid and bilateral submandibular glands of low dose group, middle dose group and high dose group decreased; salivary gland damage effect of low dose group and middle dose group were weaker than that of high dose group, and salivary gland damage effect of low dose group and middle dose group had no differences.Conclusion:Middle dose of iodine 131 can take the killing effect on cancer cells and the protective effect on salivary glands into account; it’s an ideal dosage for preoperative iodine 131 internal radiation therapy of thyroid cancer patients.

作者： 刊期： 2015年第11期