Objective To investigate the enhancement characteristics of the mass of liver and pancreas on Mn-DPDP enhanced MRI. Methods Mn-DPDP enhanced MRI were carried out in 25 cases, of which 15 cases had examined by Gd-DTPA-enhanced MRI. Conventional plain with SE T 1WI、FSE T 2WI were done in all patient. SE T 1WI and FSPGR T 1WI were performed during 40 minutes～4 hours after the administration of Mn-DPDP, with a dose of 0.5 ml/kg.Parts of the patients were repeat examined 24 hours after the administration of Mn-DPDP. Results Among 10 cases of hepatocelluler carcinoma, slightly heterogeneous enhancement were found in 8 cases.hemi-ring enhancement were found in 2 cases. 2 cases of liver cirrhosis had apparently nodular homogenous enhancement and their signal intensity were higher than normal liver tissue. No enhancement were found in 2 cases of hemangioma, 2 cases of liver metastases and 1 case of hepatic cyst. Also no enhancement were found in 8 cases of pancreatic carcinoma, but the tissue of pancreas around the tumor were enhanced remarkably. Conclusion The Mn- DPDP can show remarkably enhancement of normal liver and pancreas.The medicine's peak value keeps on time grows, can provide plentiful scanning time windows.

Objective To study the 2-4 years intermediate-term clinical effects of bone-patellar tendon-bone (B-PT-B) autograft plus interface screw method and quadruple semitendinosus tendon autograft plus endobutton plate fixation method in anterior cruciate ligament (ACL) reconstruction after ACL injury and to estimate the correlation of various implants and fixation techniques with clinical effect. Methods A retrospective analysis was done on 104 cases with ACL injury as well as detailed clinical data from October 1998 to October 2000. ACL reconstruction with bone-patellar tendon-bone autograft (PT group) and kurosaka interface screw fixation were performed in 55 cases and quadruple semitendinosus tendon autograft and endobutton plate fixation (ST group) in 49 cases. The average follow up was 38.5 months in the PT group and 35.7 months in the ST group. We compared the intermediate myodynamic recovery, ROM, lachman test, pivot shift test, IKDC score, lysholm score, Werner score and X-ray view of tunnul enlargement between two groups. Results In the PT group, the circumference of thigh was (1.097?0.079) cm, shorter than that of normal side, and (0.896?0.126) cm in the ST group. The cases accounting for 82% (45/55) in the PT group and 88% (43/49) in the ST group had extension limitation less than 3?. Knee flexion limitation of 0?-5? accounted for 87% (48/55) in the PT group and 86% (42/49) in the ST group. Bilateral comparison of Lachman test less than 5 mm accounted for 93% (51/55) in the PT group and 96% (47/49) in the ST group. Negative rate of pivot shift test was 89% (47/55) in the PT group and 92% (45/49) in ST group. Bilateral comparison of AP knee laxity with 20Ib KT-1000 in laxity with less than 3 mm accounted for 53% (29/55) in the PT group and 57% (28/49) in the ST group. Lyoholm score in the PT group was increased from preoperative 69.2?6.4 to postoperative 86.7?4.3 and that in the ST group from 68.3?7.5 to 88.4?8.6. Knee motion standard of IKDC score in the PT group was 78%(43/55), which was found normal or nearly normal, and 82%(40/49) in the ST group. Patellar femoral pain Werner score was 43.0 ?6.1 in the PT group while 45.0?6.3 in the ST group. The X-ray showed that tunnel enlargement phenomena was 53% (29/55) in the PT group while 43% (21/49) in the ST group. Conclusions From 2-4 years intermediate-term follow up, there is no significant difference in ACL reconstruction using patellar tendon autograft plus interface screw method and quadruple semitendinosus tendon plus endobutton plate fixation method. Bone grafting in the donor site can reduce the incidence of anterior knee pain. Twisting technique is beneficial to overcome of the postoperative laxity caused by viscular elasticity of quadruple semitendinosus.

OBJECTIVE: To observe the effect of wheat-grain moxibustion on behavior, 5-hydroxytryptamine (5-HT) and cortisol in the serum, mineralocorticoid receptor (MR) and glucocorticoid receptor (GR) in the hippocampus in rats with hypothyroidism complicated with depression, and to explore the possible mechanism of wheat-grain moxibustion on improving depression in rats with hypothyroidism. METHODS: A total of 32 SPF SD rats were randomly divided into a blank group, a model group, a medication group and a wheat-grain moxibustion group, 8 rats in each group. Except for the blank group, the rats in the remaining groups were treated with intragastric administration of 0.1% propylthiouracil (PTU) suspension at 1 mL/100 g, once a day for 4 weeks to establish the rat model of hypothyroidism, and whether the rats were accompanied with depression-like behavior determined through behavioristics evaluation. The rats in the medication group were intervened with euthyrox at 0.9 mL/100 g, once a day, for 4 weeks; the rats in the wheat-grain moxibustion group were treated with wheat-grain moxibustion at "Dazhui" (GV 14), "Mingmen" (GV 4), "Shenshu" (BL 23) and "Pishu" (BL 20), 7 cones each acupoint, once a day, six times a week for 4 weeks. After the intervention, the depression status was observed by behavioristics test; the contents of thyroid stimulating hormone (TSH), total thyroxine (TT4), 5-HT and cortisol in the serum were detected by ELISA; the protein expressions of MR and GR in hippocampus were detected by Western blot; the expressions of MR mRNA and GR mRNA in the hippocampus were detected by real-time PCR. RESULTS: Before the intervention, compared with the blank group, the scores of open field test (OFT) were decreased and the immobility time of tail suspension test (TST) was prolonged (P<0.05); the serum TSH contents were increased and TT4 contents were decreased (P<0.01) in the other three groups. After the intervention, compared with the model group, the vertical score of OFT was increased and the immobility time of forced swimming test (FST) was prolonged in the medication group (P<0.05), while the scores of three items of OFT were increased (P<0.05, P<0.01), and the immobility time of FST and TST was shortened in the wheat-grain moxibustion group (P<0.01, P<0.05). Compared with the medication group, the immobility time of TST and FST in the wheat-grain moxibustion group was shorter (P<0.05, P<0.01). Compared with the blank group, in the model group, the contents of serum TSH and cortisol were increased (P<0.01, P<0.001), while the contents of serum TT4 and 5-HT were decreased (P<0.01, P<0.001). Compared with the model group, the contents of serum TT4 and 5-HT were increased, while the contents of serum TSH and cortisol were decreased in the medication group and wheat-grain moxibustion group (P<0.01, P<0.05). Compared with the blank group, the protein and mRNA expression of MR, GR in the hippocampus in the model group was decreased (P<0.01, P<0.05, P<0.001); compared with the model group, the protein and mRNA expression of MR in the hippocampus in the medication group were increased (P<0.05), and the protein expression of MR, GR and mRNA expression of MR in the hippocampus in the wheat-grain moxibustion group were increased (P<0.05, P<0.01). Compared with the medication group, the expression of MR mRNA in the wheat-grain moxibustion group was increased (P<0.05). CONCLUSION Wheat-grain moxibustion could significantly improve thyroid function and depression in rats with hypothyroidism. Its mechanism may be related to up-regulating the protein and mRNA expression of MR and GR in the hippocampus, and then affecting the expression of serum cortisol and 5-HT.
Acupuncture Points ; Animals ; Depression/therapy* ; Hippocampus/metabolism* ; Hydrocortisone/metabolism* ; Hypothyroidism/therapy* ; Moxibustion ; RNA, Messenger/metabolism* ; Rats ; Rats, Sprague-Dawley ; Receptors, Glucocorticoid/metabolism* ; Receptors, Mineralocorticoid/metabolism* ; Serotonin ; Thyrotropin/metabolism* ; Triticum/metabolism*

OBJECTIVE: To explore the possible mechanism of acupuncture at "Zhibian" (BL 54) through "Shuidao" (ST 28) on premature ovarian insufficiency (POI) from the perspective of oxidative stress. METHODS: Sixty female SD rats were randomly divided into a blank group, a model group, a sham acupuncture group, a medication group, and an acupuncture group, 12 rats in each group. Except the blank group, the rats in the remaining groups were intraperitoneally injected with cyclophosphamide to establish the POI model. After the model was successfully established, the rats in the acupuncture group were treated with acupuncture at "Zhibian" (BL 54) through "Shuidao" (ST 28), with a depth of about 12 mm, and the needle was retained for 30 min; the acupuncture was given once a day, for a total of 4 weeks. The rats in the sham acupuncture group were treated with blunt-head needle to tap the skin surface of "Zhibian" (BL 54), without penetrating the skin, once a day for 4 weeks. The rats in the medication group were treated with estradiol valerate by gastric gavage for 4 weeks. After the intervention, the level of reactive oxygen species (ROS) in the ovarian tissue was detected by fluorescence probe; the expression of c-Jun N-terminal kinase (JNK), forkhead box O1 (FoxO1), tumor suppressor gene protein 53 (p53) and p53 up-regulated modulator of apoptosis (Puma) mRNA and protein in ovarian tissue were detected by real-time fluorescence quantitative PCR and Western blot. RESULTS: Compared with the blank group, the level of ROS and the expression of JNK mRNA, p-JNK protein, FoxO1, p53, Puma mRNA and protein in the ovarian tissue in the model group were increased (P<0.01). Compared with the model group, the level of ROS and the expression of p-JNK protein, FoxO1, p53, Puma mRNA and protein in the ovarian tissue in the sham acupuncture group were slightly reduced, but the difference was not statistically significant (P>0.05). The level of ROS and the expression of JNK mRNA, p-JNK protein, FoxO1, p53, Puma mRNA and protein in the ovarian tissue in the acupuncture group and the medication group were reduced (P<0.01). CONCLUSION Acupuncture at "Zhibian" (BL 54) through "Shuidao" (ST 28) could improve the level of oxidative stress, down-regulate the expression of apoptosis-related factors JNK, FoxO1, p53 and Puma induced by oxidative stress, and inhibit the premature failure of ovarian reserve function caused by apoptosis of ovarian granulosa cells in POI rats.
Humans ; Rats ; Female ; Animals ; Rats, Sprague-Dawley ; Reactive Oxygen Species ; Tumor Suppressor Protein p53/genetics* ; Apoptosis Regulatory Proteins ; Acupuncture Therapy ; Primary Ovarian Insufficiency/therapy* ; Apoptosis ; RNA, Messenger ; Oxidative Stress ; Acupuncture Points

OBJECTIVE: To explore the effect of "Zhibian" (BL 54)-to-"Shuidao" (ST 28) needle insertion on the ovarian function in the rats with primary ovarian insufficiency (POI) and the potential effect mechanism based on the Fas/FADD/Caspase-8 of death receptor pathway. METHODS: Forty-eight female SD rats were randomly divided into a blank group, a model group, a medication group and an acupuncture group, with 12 rats in each group. Except in the blank group, the rats in the other groups were intraperitoneally injected with cyclophosphamide to establish the POI model. In the acupuncture group, after successful modeling, the intervention was given with "Zhibian" (BL 54)-to- "Shuidao" (ST 28) needle insertion, once daily, 30 min in each intervention; and the duration of intervention was 4 weeks. In the medication group, estradiol valerate tablets were administered intragastrically, 0.09 mg•kg^-1•d^-1, for 4 weeks. The general situation and the estrous cycle of the rats were compared among groups. Using ELISA, the levels of follicle-stimulating hormone (FSH), luteinizing hormone (LH) and estradiol (E₂) in the serum were detected. HE staining was adopted to observe the morphological changes of ovarian tissue of rats. The protein expression of Fas, FADD and Caspase-8 in ovarian tissue was detected with immunohistochemistry and Western blot. RESULTS: After modeling, except the rats of the blank group, the rats of the other groups had dry fur, lost hair, low spirits, reduced food intake, increased urination and loose stool. After intervention, the stool became regular gradually in the acupuncture group and the medication group. The percentage of estrous cycle disturbance was increased in the rats of the model group when compared with the blank group (P<0.01); in comparison with the model group, the percentages of estrous cycle disturbance were reduced in the acupuncture group and the medication group after intervention (P<0.01). When compared with the blank group, the body mass and E₂ content in the serum were lower (P<0.01), the levels of FSH and LH in the serum and the protein expression levels of Fas, FADD and Caspase-8 were increased (P<0.01) in the model group. Compared with the model group, the body mass and E₂ contents in the serum were higher (P<0.01), the levels of FSH and LH in the serum and the protein expression levels of Fas, FADD and Caspase-8 were reduced (P<0.01) in the acupuncture group and the medication group. CONCLUSION "Zhibian" (BL 54)-to-"Shuidao" (ST 28) needle insertion can effectively improve the ovarian function of POI rats, and its effect mechanism may be related to regulating the serum sex hormone levels, reducing the expression of Fas, FADD and Caspase-8 in ovarian tissue and retarding apoptosis of ovarian cells.
Female ; Animals ; Rats ; Needles ; Signal Transduction ; Receptors, Death Domain/metabolism*

Objective:To study the effect of Qiwei Baizhusan (QWBZS) on liver insulin phosphatidylinositol 3-kinase（PI3K）/protein kinase B（Akt） signal pathway of diabetic mice induced by high-fat diet and streptozotocin (STZ). Method:The methods of network pharmacology and animal experiments were used to study the hypoglycemic effect of QWBZS. Active chemical components of the drug and disease targets selected through public databases were used to construct the protein-protein interaction network (PPIN), and gene ontology(GO) and Kyoto Encyclopedia of Genes and Genomics(KEGG) enrichment analysis was performed to identify relevant signal pathways in vivo. In the pharmacological experiment, the diabetic mice model was established through intraperitoneal injection with 80 mg·kg^-1·d^-1 STZ high-glucose, high-fat diet. The mice were divided into normal group (normal saline), model group (normal saline) and QWBZS group (18.7 g·kg^-1·d^-1). After 28 days, the hypoglycemic effect of the drug and its effect on serum total cholesterol (T-CHO), fasting insulin (FINS) and serum tumor necrosis factor-α (TNF-α) were determined. Western blot and Real-time fluorescence quantitative PCR (Real-time PCR) were used to detect protein and mRNA expressions of insulin receptor (IR), insulin receptor substrate-1 (IRS-1)，phosphatidylinositol 3-kinase (PI3K) and protein kinase B (Akt) in liver tissues． Result:A total of 36 active components in this drug were identified by network pharmacology. KEGG analysis suggested that QWBZS might play a role in reducing blood glucose by regulating PI3K Akt signal pathway. Compared with the model group, the levels of blood glucose, serum T-Cho and TNF-α of the intervention group were significantly lower (P<0.01), while the FINS of the intervention group was significantly higher (P<0.01). Protein and mRNA expressions of IR，IRS-1，PI3K and Akt in liver tissues of mice in QWBZS treatment group increased markedly (P<0.05，P<0.01). Conclusion:QWBZS could regulate the levels of blood glucose, TNF-α, T-CHO, and FINS in the serum of diabetic mice induced by high-fat diet and STZ. It can improve PI3K/Akt signal pathway of diabetic mice by regulating protein and mRNA expressions of IR，IRS-1，PI3K and Akt/PKB.