Objective To study the clinical values of MRI and B-ultrasonography in the diagnoses of gynecological pelvic tumors.Methods From September 2014 to September 2016,130 patients with gynecological pelvic tumors were randomly selected and examined by MRI and B-ultrasonography respectively.MRI and B-uhrasonography were compared on the misdiagnosis and missed diagnosis rate,detection rate of malignant tumor as well as diagnosis coincidence rate.Results The detection rate of malignant tumor,the misdiagnosis and missed diagnosis rate and the diagnosis coincidence rate of MRI were 96.15％,10.77％ and 89.23％ respectively,those of B-ultrasonography were 76.92％,24.62％ and 75.38％ respectively,and there were significant differences between all the rates of MRI and B-ultrasonography (P＜0.05).Conclusion MRI diagnoses pelvic tumors effectively,while behaves not so well as B-ultrasonography in cost,timeliness and scan time.

The present study examined the protective effect of the ethanol extract of Sarcopyramis nepalensis (EESN) on agents-induced hepatotoxicity in mice and the possible mechanism. Acute liver injury was induced by administration of either CCl(4) or D-GalN. The animals were divided into 5 groups in terms of different treatment: normal group, CCl(4) or D-GalN group, silymarin or bifendate group, low dose EESN group (10 mg/kg) and high dose EESN group (30 mg/kg). Liver function was evaluated by detecting the levels of serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST). The oxidize stress markers were measured, including malondialdehyde (MDA), glutathione peroxidase (GSH) and superoxide dismutase (SOD). Liver tissues were histopathologically examined by hematoxylin-eosin (H&E) staining. The acute toxicity study revealed that there was no toxicity of EESN at the dose of 5 g/kg in mice. The levels of ALT and AST in serum, and the MDA level in live tissues were significantly increased and the activities of SOD and GSH substantially decreased in mice after CCl(4) or D-GalN treatment. These biochemical and oxidize stress markers were profoundly improved after treatment with EESN at different doses, which was similar to the results of silymarin or bifendate treatment. The histophathological examination revealed the significant improvement in the pathological changes of the liver in EESN-treated mice as compared to those in CCl(4) or D-GalN group. It was concluded that EESN possesses potential antioxidant and hepatoprotective properties and has therapeutic potential for liver diseases.

BACKGROUND:Study confirms that bone morphogenetic protein can induce osteogenesis;however the ultrastructure of periosteal cells induced by bone morphogenetic protein-7 remains poorly reported.
OBJECTIVE:To study the bioactivity and ultrastructure of periosteal cells induced by bone morphogenetic protein-7 in vitro.
METHODS:The primary periosteal cells isolated from adult tibial bone were in vitro cultured, and then divided into experimental group and control group. In the experimental group, cells were cultured with bone morphogenetic protein-7 and culture adjuvant;while cells in the control group were only cultured with the adjuvant. Three samples in each group were tested at 5, 10, 15 days, respectively. The general structure of cultured cells was observed using von Kossa staining, and the ultrastructure was observed under transmission electron microscopy.
RESULTS AND CONCLUSION:The periosteal cells in the two groups grew wel in vitro, showing uniform morphology. Early cells were spindle-shaped, with strong three-dimensional sense and ful transparency;mitotic cells were short columnar or cubic shaped, there were a lot of rough endoplasmic reticulum and Golgi complex in osteoblasts under electron microscope. Later stage of cells developed from long fusiform into wide shuttle and irregular shape, there were a large number of matrix vesicles within the cells under the electron microscope. The membrane coating, alkaline phosphatase and calcium-binding protein in the cytoplasm, as wel as calcium crystals were found. The osteogenesis basement and lateral sides appeared projections, which were connected with adjacent bone cells. Induction of bone morphogenetic protein-7 in vitro promotes the osteoblasts proliferation, division and bone formation speed. The results suggest that bone morphogenetic protein-7 can significantly enhance the proliferation ability of osteoblasts in vitro.

Objective To observe effects of Naotaifang on MMP-9, NF-κB and TIMP-1 after focal cerebral ischemia in rats. Methods The rats were randomly divided into sham operation group, model group, and Naotaifang low- (3 g/kg), medium- (9 g/kg), high- dose (27 g/kg) group. After 3 days of corresponding therapy by intragastric administration once a day, the regional cerebral ischemia model was made by middle cerebral artery occlusion (MCAO) with suture method. Following 3 days, the rats were treated with previous method. On the third day, hippocampal C2 region of ischemic tissue was detected by HE dyeing. And the contents of MMP-9, NF-κB and TIMP1 proteins in hippocampal C2 region were measured by immunohistochemical method. Results The number of normal brain cells in high dose group of Naotaifang was more than that of the model group, and only a few cells appeared nucleus pycnosis. The MMP-9 expression of all dose groups of Naotaifang were significantly decreased than model group (P<0.05). The NF-κB expression of high and medium dose groups of Naotaifang were significantly decreased (P<0.05). The TIMP1 expression of all dose groups of Naotaifang were significantly increased compared with sham operation group (P<0.05). Conclusion The mechanism of Naotaifang protecting blood brain barrier against injury of cerebral ischemia may be involved in ameliorating MMP, NF-κB and increasing TIMP1 expression.

Aim To investigate the effects of Naotai formula extract(NTE)on the expression of heme oxygenase-1(HO-1) and hephaestin(Heph) in hippocampus of rats after cerebral ischemia/reperfusion by Keap1-Nrf2/ARE signaling pathway.Methods Eighty rats were randomly divided into five groups as follows: sham operation group(Sham), cerebral ischemia/reperfusion group(I/R), low dose group of NTE(4.5 g·kg-1), middle dose group of NTE (9 g·kg-1) and high dose group of NTE(18 g·kg-1).Rats were pretreated by intragastric administration for three consecutive days, and then subjected to middle cerebral artery occlusion (MCAO) 2 hours before reperfusion.The rats were administered with intragastric administration for two days.After cerebral ischemia reperfusion 72 hours, the behavioral activity of rats was recorded by Zea Longa neurological score, and the infarct volume was measured by TTC staining.The expressions of Nrf2, HO-1 and Heph in hippocampus of cerebral ischemia reperfusion rats were observed by real-time quantitative PCR and Western blot, respectively.Results Compared with model group, the neurobehavioral scores significantly decreased in NTE high-dose and middle-dose groups (P<0.01);the infarct volume of NTE groups markedly decreased (P<0.01);the expression of HO-1 mRNA apparently increased (P<0.05) in NTE groups;the expression of Heph mRNA significantly increased in NTE middle-dose and high-dose groups (P<0.05);the expression of Nrf2 and Heph protein evidently increased in the NTE middle and high dose groups (P<0.05, P<0.01);and the expression of HO-1 protein also increased in NTE groups(P<0.01).Conclusions Naotai formula can relieve cerebral ischemia-reperfusion injury.The mechanism might be associated with activating Keap1-Nrf2/ARE signaling pathways, promoting HO-1 generation, advancing the expression of Heph, and then reducing brain iron deposition, to achieve the protection of neurons after cerebral ischemia-reperfusion.

Objective To evaluate the clinical efficacy of total mesoesophageal excision and sanye lymph node dissection in the radical resection of esophageal carcinoma under thoracoscopy and laparoscopy,and to investigate its safety and feasibility, and to find a more reasonable and effective surgical treatment of esophageal carcinoma. Methods One hundred and twenty-six cases of esophageal cancer who underwent the minimally invasive surgery under thoracoscopy and laparoscopy for esophageal cancer in Central Hospital of Hengyang from October 2015 to September 2017 were retrospectively analyzed. Among them,Sixty-four patients accepted total mesoesophageal excision and sanye lymph node dissection under thoracoscopy and laparoscopy (observation group ), Sixty-two cases accepted with conventional esophagectomy under thoracoscopy and laparoscopy ( control group) . The operation time, blood loss, indwelling time of thoracic drainage tube, postoperative drainage volume,postoperative hospitalization time,number of lymph node dissection,lymph node metastasis degree,perioperative complications of the two groups were analyzed and compared. The number of lymph node dissection and lymph node metastasis degree in different regions were compared between the two groups. The number of recurrence and death were recorded in the two groups. Results Compared with the control group,the operation time was longer in the observation group((264. 9±32. 9) min vs. (233. 5±30. 4) min,t= -5. 56,P<0. 001),but blood loss was less((152. 7±26. 4) ml vs. (235. 5± 30. 6) ml,t = 16. 27,P<0. 001). There was no significant difference in the indwelling time of thoracic drainage tube, postoperative drainage volume or postoperative hospitalization time between the two groups (P>0. 05). The number of lymph nodes in the observation group was significantly higher than that in the control group ((32. 7±15. 5) pieces vs. (20. 9±11. 2) pieces,t = - 4. 93,P< 0. 001),and lymph node metastasis degree in the observation group was smaller than that of the control group ( 6. 7% vs. 9. 3%, χ2 = 7. 22, P < 0. 01) . There were no significant differences in perioperative complications such as pulmonary complications, arrhythmia, anastomotic fistula, chylothorax,hemorrhage,recurrent laryngeal nerve injury,tracheal injury and perioperative death (P>0. 05). Left and right recurrent laryngeal nerve,thoracic esophagus,celiac artery lymph node dissection of the number of observation group was higher than that of the control group ((4. 7 ± 3. 2) pieces vs. (1. 5 ± 1. 4) pieces, t= -7. 25;(6. 0±2. 7) pieces vs. (3. 1±1. 7) pieces,t = -7. 12;(5. 7± 2. 4) pieces vs. (3. 2± 1. 9) pieces,t= -6. 48;P<0. 001). Left and right recurrent laryngeal nerve,thoracic esophagus lymph node metastasis degree in the observation group was smaller than that in the control group (8. 7%(26/ 300) vs. 18. 1%(17/ 94),χ2= 6. 53;8. 9%(34/ 382) vs. 17. 9%(35/ 195),χ2 = 10. 04;P<0. 05) . There were no significant differences in the recurrence rate of tumor recurrence at 1 and 24 months after operation in the observation group and the control group(3 cases(4. 7%) vs. 4 cases(6. 5%),χ2 = 0. 92,P > 0. 05) . There were no deaths in the two groups. Conclusion Total mesoesophageal excision and three-field lymph node dissection in radical resection of esophageal carcinoma under thoracoscopy and laparoscopy is safe and feasible,the recent effect does not increase the surgical complications, but its long-term effect need a lot of long-term follow-up. A relatively thorough cleaning of the esophageal mesentery and its lymph nodes can minimize the tumor in the subendothelial micrometastasis,and is beneficial for the prognosis of patients with esophageal cancer.

In this paper, the changes of volatile oil and non-volatile ingredients in Cortex Magnolia Officinalis before and after primary processing were determined by an HPLC and a GC-MS method. The method is based on quantitative determination of three index ingredients, beta-eudesmol, honokiol and magnolol, and on qualitative fingerprinting analysis using HPLC and GC. Big differences were observed between processed and unprocessed samples according to their chromatographic fingerprinting data calculated by statistic software. Compared with unprocessed samples, the contents of honokiol and magnolol in processed samples increased, whereas the contents of beta-eudesmol and magnoloside A in processed samples decreased. Magnoloside A was isolated from this plant for the first time.
Drugs, Chinese Herbal ; chemistry ; Magnolia ; chemistry ; Quality Control ; Technology, Pharmaceutical ; methods

The effects of tree ages and geographic area on quality of bark of Magnolia officinalis (MO) and M. officinalis var. biloba (MOB) were studied. The volatile oils of samples extracted by a water stream distillation method were analyzed using a GC/MS method. The non-volatile ingredients of samples were determined by an HPLC method. Seven and twenty characteristic peaks were detected in the HPLC and GC fingerprint of MO, respectively, and the similar HPLC and GC fingerprint were showed in MOB. For samples collected in the same geographic area with different ages, the concentrations of active ingredients varied barely, whereas for those samples collected from different geographic area, differences on the concentrations of active ingredients were observed, for example, the concentrations of the amount of magnolol and honokiol in samples collected in Hubei province were higher than those collected in other areas. Big differences on the concentrations of active ingredients were found between MO and MOB, for MO, the ratio of honokiol/ magnolol was more than 0.7, whereas the ratio-was less than 0.7 in the case of MOB, and the concentrations of honokiol in MO were higher than those in MOB.
China ; Magnolia ; chemistry ; physiology ; Plant Bark ; chemistry ; physiology ; Plant Extracts ; analysis

The present study examined the protective effect of the ethanol extract of Sarcopyramis nepalensis (EESN) on agents-induced hepatotoxicity in mice and the possible mechanism. Acute liver injury was induced by administration of either CCl(4) or D-GalN. The animals were divided into 5 groups in terms of different treatment: normal group, CCl(4) or D-GalN group, silymarin or bifendate group, low dose EESN group (10 mg/kg) and high dose EESN group (30 mg/kg). Liver function was evaluated by detecting the levels of serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST). The oxidize stress markers were measured, including malondialdehyde (MDA), glutathione peroxidase (GSH) and superoxide dismutase (SOD). Liver tissues were histopathologically examined by hematoxylin-eosin (H&E) staining. The acute toxicity study revealed that there was no toxicity of EESN at the dose of 5 g/kg in mice. The levels of ALT and AST in serum, and the MDA level in live tissues were significantly increased and the activities of SOD and GSH substantially decreased in mice after CCl(4) or D-GalN treatment. These biochemical and oxidize stress markers were profoundly improved after treatment with EESN at different doses, which was similar to the results of silymarin or bifendate treatment. The histophathological examination revealed the significant improvement in the pathological changes of the liver in EESN-treated mice as compared to those in CCl(4) or D-GalN group. It was concluded that EESN possesses potential antioxidant and hepatoprotective properties and has therapeutic potential for liver diseases.
Animals ; Ethanol ; chemistry ; Female ; Liver ; drug effects ; Male ; Mice ; Plant Extracts ; chemistry ; pharmacology