2.Antitumor activity of different organic solvents extracts and plumbagin from plumbago zeylanica L. on EMT-6 breast cancer and transplanting S180 in vivo
Jizhong ZHANG ; Yuan LIU ; Tao JIAO
Chinese Pharmacological Bulletin 2003;0(08):-
Aim To find out the effect of the different organic solvents extracts and plumbagin from Plumbago zeylanica L.on EMT-6 breast cancer of BALB/C mouse and transplanted S180 of KM mouse primarily.Method Experiments of animal transplanted tumor in vivo were adopted.Results ① The high dose of chloroform group and plumbagin group could inhibit the growth of EMT-6 breast cancer in BALB/C mice in vivo.Compared with that of physiological saline group,tumor weight has obviously lightened(P
3.Neuroprotective effects of minocycline on retinal ganglion cells in early stage of optic nerve crush injury
Xiaoling, JIAO ; Yuan, PENG ; Liu, YANG
Chinese Journal of Experimental Ophthalmology 2014;32(4):303-307
Background Minocycline possesses neuroprotective effect in a variety of animal models and clinical trials of central nervous system,but whether it works on optic nerve injury remains unclear.Objective This study aimed to observe the protective effects of minocycline on retinal ganglion cells (RGCs) in the early stage of optic nerve crush and explore its mechanism.Methods One hundred and thirty-six clean C57BL/6J mice were randomly divided into normal control group,normal saline solution group and minocycline group.The optic nerve crush injury models were induced in the left eyes of the mice in the normal saline solution group and minocycline group by a cross-action forceps for 3 seconds.Minocycline was injected intraperitoneally in the minocycline group firstly 45 mg/kg(0.4 ml) and followed by 22.5 mg/kg per day after 24 hours until sacrifice of the animals,and the equivalent volume of normal saline solution was injected in the same way in the normal saline solution group.The mice were euthanized at 4,7,11,14 days postoperatively and the left eyeballs were collected.Retinal flat mounts and DAPI staining was used to observe and compare the change of RGCs density among different groups and various time points.Apoptosis of mice RGCs were assessed by TdT-mediated dUTP nick end labeling (TUNEL).Real-time polymerase chain reaction (real-time PCR) was used to detect the expression of CD11b mRNA in retinal microglials.Results DAPI staining in retinal flat mounts showed that the average RGCs density was (77.50±2.38)/0.01 mm2 and (70.00±2.94) /0.01 mm2 in the 4th and 7th day after modeling in the normal saline solution group,and those in the minocycline group were (88.75 ± 2.36) /0.01 mm2 and (81.00 ± 3.92)/0.01 mm2,with significant differences between the two groups (t4d =-6.708,P<0.01 ;t7d =--4.491,P<0.01).The apoptotic RGCs were (12±1)/mm and (4±1)/mm in the normal saline solution,which were significantly more than (4±1)/mm and (1±0)/mm in the minocycline group (t4 d =12.832,P<0.01 ; t7d =3.455,P =0.026).However,no significant difference was found in apoptotic RGCs in postoperative 11 days and 14 days between the normal saline solution group and the minocycline group (P =0.708,0.777).The expressing levels of CD11 b mRNA in the retinal microglials were significantly higher in the 4th and 7th day in the normal saline solution group than those in the minocycline group (t4 d =8.312,P<0.01 ;t7d=5.407,P<0.01),but were not significantly different in the 11st and 14th day after modeling between the two groups (P=0.055,0.170).Conclusions Minocycline can play a neuroprotective effect on RGCs in the early stage of optic nerve crush in mice by inhibiting microglia activation and decreasing RGCs apoptosis.
4.Changes of Clara cell protein and interferon-γ in lungs with fetal growth retardation in fetal rats
Xiaomei LIU ; Baoling TIAN ; Yisheng JIAO ; Zhengwei YUAN ; Caixia LIU
Chinese Journal of Applied Clinical Pediatrics 2014;29(16):1216-1219
Objective To determine the effects of intrauterine growth retardation(IUGR) caused by malnutrition during pregnancy on the lung structure and expression of Clara cell protein (CCSP) and interferon (IFN)-γ in the fetal lungs,and to explore their relation ship with pulmonary disease.Methods Fetal rats from maternal protein-malnutrition dams were studied on day 20(term 21.5 day).The lung pathology was examined by means of Hematoxylin and eosin(HE) stain.Plasma was collected to determine the CCSP and IFN-γ concentration.Lungs were harvested to measure the expression of CCSP and IFN-γ mRNA by using fluorescent quantization reverse transcription (RT)-PCR and the levels of CCSP and IFN-γ protein were assessed by using enzyme-linked immunosorbent assay.Results Malnutrition fetus body weight significantly less compared to control group,so did the lung weight.However,lung weight,expressed as a percentage of body weight between the 2 groups was not different.The IUGR group had significantly decreased alveolar number manifested by lower radial alveolar count,and significantly increased mean linear intercept of alveoli.Both the CCSP mRNA expression and protein level in lung of IUGR rats were decreased compared with control rats (all P < 0.05).A decline in plasma CCSP protein concentration was also noted compared with control group (P <0.05).Furthermore,IUGR group fetus showed lower IFN-γ levels both in circulation and in the lung tissue (all P < 0.05).Conclusions Intrauterine malnutrition significantly alters lung structure and cytokine IFN-γ level,and the latter may further inhibit the transcription of CCSP gene.These alterations may contribute to both early and late postnatal respiratory morbidity.
5.Stability of the salt iodization agent potassium iodate: a differential thermal analysis
Hui-yuan, LIU ; Tian-jiao, SHEN ; Wen-hua, CAO
Chinese Journal of Endemiology 2012;31(6):684-686
Objective To investigate the thermal stability of solid potassium iodate and potassium iodate as additive in the sodium chloride,vitamin E,vitamin C and yellow prussiate.Methods HCR-2 type Differential Thermal Analyzer was used to carried out the differential thermal analysis of the potassium iodate and the potassium iodate in the sodium chloride,vitamin E,vitamin C and the yellow prussiate,and differential thermal curves were obtained and analyzed.Results The decomposition temperature of solid potassium iodate was 525℃ ; when mixed with sodium chloride,potassium iodate was stable below 300 ℃ ; vitamin C was unstable at 170-200 ℃ and underwent chemical changes; iodate and vitamin C underwent oxidation-reduction reaction at 145 to 160 ℃;potassium iodate with vitamin E at 300 ℃ was stable; yellow prussiate at 300 ℃ was stable; iodized salt was stable at cooking temperature below 300 ℃.Conclusions The potassium iodate has good stability below 525 ℃,however,potassium iodate iodized salt in the cooking process is easy to react with vitamin C in vegetables causing iodine losses,so iodized salt should be added just before the dish is done.
6.An evaluation index system of ward management: development and practice
Hongmei ZHANG ; Na GUO ; Jing CAO ; Jing JIAO ; Yue HE ; Xia LIU ; Yuan LIU ; Xinjuan WU
Chinese Journal of Hospital Administration 2017;33(7):527-530
Objective To construct an evaluation index system of ward management,which can evaluate the efficiency of ward management fairly, and make the ward management more scientific and standardized.Methods Delphi method was used in semi-structured interview of 31 experts and 74 experts were subject to questionnaire consultation, so as to establish the index system.Results The index system of ward management so built consisted of three level-1 indexes of safety and quality, teamwork and patient satisfaction, six level-2 indexes of daily monitoring, service environment, adverse events, doctor-nurse cooperation, evaluation of administrators and patient satisfaction, and 25 level-3 indexes.Practice of this system in the past two years reduced adverse events and elevated quality of care.Conclusions This system as used clinically proves its operability and objectivity.
7.Treatment of complete acromioclavicular joint dislocation with transfer of the medial half of the coracoacromial ligament to reconstruct the coracoclavicular ligament.
Wen-Wei DONG ; Zeng-Yuan SHI ; Zheng-Xin LIU ; Hai-Jiao MAO
China Journal of Orthopaedics and Traumatology 2015;28(4):340-344
OBJECTIVETo explore the operation methods and clinical effects of transfer of the medial half of the coracoacromial ligament to reconstruct the coracoclavicular ligament in treating complete acromioclavicular joint dislocation.
METHODSFrom January 2006 to June 2012,26 patients with acute complete acromioclavicular joint dislocation underwent surgery. Transfer of the medial half of the coracoacromial ligament to reconstruct the coracoclavicular ligament, additional clavical hoot plate and Kirschner wires fixation, were performed in all the patients. Among the patients, 18 patients were male and 8 patients were female, with an average age of 36.7 years old (ranged from 25 to 51 years). The duration from injury to operation was from 3 to 12 days with an average of 5 days. According to the Rockwood classification, 4 cases were grade III and 22 cases were grade V . Clinical manifestation included local swelling, tenderness with snapping, limitation of shoulder joint motion. In preoperative bilateral shoulder joint X-rays, the injured coracoclavicular distance was (16.2 ± 5.0) mm which was significantly wider than that of uninjured sides (7.6 ± 1.0) mm. Clinical results were evaluated according to X-rays and Constant-Murley score.
RESULTSAll incisions obtained primary healing after operation without complication of infection, internal fixation breakage, redislocation. All the patients were followed up from 12 to 30 months with an average of 18 months. Kirschner wires and internal fixation plate were removed at 1 month and 8-10 months after operation, respectively. At final follow-up, the motion of shoulder joint recovered to normal and a no pain joint was obtained. According to Constant-Murley score, 24 cases got excellent results and 2 cases good. There was no significant difference after operation between the injured coracoclavicular distance and the uninjured contralateral side [(7.7 ± 1.2) mm vs (7.6 ± 1.0) mm), P > 0.05].
CONCLUSIONTransfer of the medial half of the coracoacromial ligament to reconstruct the coracoclavicular ligament, additional fixation using hook plate and Kirschner wires is the effective surgical method in treating complete acute acromioclavicular joint dislocation.
Acromioclavicular Joint ; injuries ; Adult ; Female ; Humans ; Joint Dislocations ; surgery ; Ligaments, Articular ; surgery ; Male ; Middle Aged ; Reconstructive Surgical Procedures ; methods
8.Analysis of risk factors for prognosis of patients with acute paraquat intoxication
Fengjun JIAO ; Wen ZHU ; Taoning WANG ; Yaying YUAN ; Kai KANG ; Minlong LIU
Chinese Critical Care Medicine 2015;27(11):906-910
Objective To explore the risk factors influencing the prognosis by analyzing clinical data of patients with acute paraquat intoxication, and to assess the prognostic values of acute physiology and chronic health evaluation Ⅱ (APACHE Ⅱ) score, sequential organ failure assessment (SOFA) score, and Acute Kidney Injury Network (AKIN) stage.Methods The clinical data of patients with acute paraquat intoxication admitted into the First People's Hospital of Xianyang City during October 2005 to May 2015 were retrospectively analyzed.The patients were divided into death group and survival group according to 28-day outcome after poisoning.The gender, age, body weight index, toxin dose, time elapsed from poisoning to gastric lavage, time elapsed from poisoning to hemoperfusion (HP), times of HP treatment, white blood cell count (WBC), alanine aminotransferase (ALT), aspartate transaminase (AST), total bilirubin (TBil), serum creatinine (SCr), blood urea nitrogen (BUN), creatine kinase (CK) were determined at admission.Arterial partial pressure of oxygen (PaO2), arterial partial pressure of carbon dioxide (PaCO2), arterial lactate (Lac), and APACHE Ⅱ score, SOFA score and AKIN stage were recorded and compared between two groups.The receiver operating characteristic (ROC) curve was plotted for APACHE Ⅱ score, SOFA score and AKIN stage to analyze the prognostic value for patients with acute paraquat intoxication.Results There were 118 cases in total,with 64 survivors and 54 deaths in 28 days, and the fatality rate was 45.76%.Compared with survival group, the toxic dose (mL: 66.29 ± 27.40 vs.29.16 ± 19.40), time elapsed from poisoning to gastric lavage (minutes: 60.37 ± 26.68 vs.41.17± 14.82), WBC count (× 109/L: 16.86±2.77 vs.10.25 ± 2.60), ALT (U/L: 53.94± 10.85 vs.36.40±9.21),SCr (μmol/L: 159.69±42.85 vs.81.73±34.40) at admission as well as Lac (mmol/L: 3.06± 1.33 vs.1.71 ±0.88),APACHE Ⅱ score (6.46±2.38 vs.3.31 ± 1.51), SOFA score (3.31 ± 1.06 vs.2.21±0.76) 48 hours after admission were significantly higher in the death group (all P < 0.01).PaO2 and PaCO2 48 hours after admission were significantly lower in death group than those in the survival group [PaO2 (mmHg, 1 mmHg =0.133 kPa): 64.07± 13.04 vs.75.40 ± 13.27, PaCO2 (mmHg): 26.20 ± 8.89 vs.31.25 ± 6.29, both P < 0.01].There were 18, 15, 11 and 10 patients in AKIN 0, 1, 2, 3 stage 48 hours after admission respectively in death group, and 38, 15, 7, 4 in survival group.The difference between two groups was statistically significant (P < 0.01).There were no statistically significant differences in gender, age, body mass index, time elapsed from poisoning to HP, levels of HP, and AST, TBil, BUN and CK at admission between the two groups.At 48 hours after admission, the area under the ROC curve (AUC) of APACHE Ⅱ score predicting the prognosis of patients with acute paraquat poisoning was 0.875 [95% confidence interval (95%CI) =0.814-0.935, P =0.000].When the cut-off point of APACHE Ⅱ score was 4, the sensitivity and specificity were 79.6% and 79.7%, and the best Youden index was 0.593.The AUC of SOFA score was 0.776 (95%CI=0.692-0.859, P =0.000).When the cut-off point of FOFA score was 3, the sensitivity was 72.2%, the specificity 67.2%, and the best Youden index 0.394.The AKIN stage of ROC curve had an area of 0.656 (95%CI =0.556-0.755, P =0.004).When the cut-off point of AKIN stage was 1, the sensitivity was 66.7%, the specificity was 59.4%, and the best Youden index was 0.261.Conclusions Amount of the poison, time elapsed from poisoning to gastric lavage, and WBC, ALT, SCr at admission as well as PaO2, PaCO2 and Lac 48 hours after admission are the risk factors for prediction of the prognosis of acute paraquat intoxication.APACHE Ⅱ score, SOFA score and AKIN stage can be used to assess the prognosis of acute paraquat poisoning, and APACHE Ⅱ score is better than SOFA score and AKIN stage.
9.Study on the Extraction Technology of Phenolic Acids from Anemone altica
Xiaodong YANG ; Fubing LI ; Jiao MEI ; Hongjia YUAN ; Xingwen LIU ; Bo LI
China Pharmacy 2017;28(13):1848-1851
OBJECTIVE:To determine the content of phenolic acids from Anemone altica,and optimize its extraction technolo-gy. METHODS:HPLC was used to determine the contents of mono-ferulyl tartaric acid and ferulic acid from A. altica;using the total contents of 2 index components as index,volume fraction of extraction solvent,extraction solvent volume,extraction times and extraction time as factors,orthogonal test was used to optimize extraction technology,and verification test was conducted. RE-SULTS:The contents of mono-ferulyl tartaric acid and ferulic acid were 0.059%,0.0025%,respectively;the optimal extraction technology was as follow as 30% ethanol 600 mL added to 20 g medicinal material,extracted twice,90 min every time. In verifi-cation test,the average contents of 2 components in extract were 0.2971%(RSD=3.64%,n=3),0.0041%(RSD=5.11%,n=3). CONCLUSIONS:A method for contents determination of mono-ferulyl tartaric acid and ferulic acid from A. altica is estab-lished;optimized extraction technology is stable and feasible.
10.Effect of CCL2 neutralizing antibody on pain behaviour and spinal microglia activation in rat bone cancer model
Wen SHEN ; Youmiao XU ; Yan CHEN ; Jiao LIU ; Dongmei YUE ; Yah YUAN ; Dong LIANG
Chinese Journal of Behavioral Medicine and Brain Science 2011;20(9):781-783
Objective To investigate the role of CCL2 in pain facilitation and spinal mechanisms in the rat model of bone cancer pain.Methods The bone cancer pain model was developed by inoculating.Walker 256 mammary gland carcinoma cells into the rat tibia medullary cavity.SD female rats were divided into 5 groups randomly ( n =8):sham group( group Ⅰ),sham + CCL2 antibody group( group Ⅱ),BCP group( group Ⅲ),BCP +control lgG group ( group Ⅳ),BCP + CCL2 antibody group ( group Ⅴ ).VonFrey threshold was measured one day before operation and 1 st,3 rd,5th,7th,10th,14th,21 st after operation.CCL2 antibody or control lgG was injected intrathecally from 10th to 12th day.The expression of the spinal Iba-1 ( microglial marker) in rat lumbar4-5 was detected by immunohistochemistry assay.Results From the 10th to 21st day after operation,the PMWT of group Ⅲ rats were ( 1.78 ±0.38)g,( 1.70 ±0.17)g,( 1.35 ±0.07 )g;group Ⅳ rats were (2.99 ±0.67)g,(2.52 ±0.75)g,(1.13±0.07)g ; and group Ⅴ rats were (5.88±0.66)g,(7.81 ±0.75)g,(6.19±0.53)g.Compared with group Ⅲ,the PMWT of group Ⅴ was remarkly higher (P<0.01) ; group Ⅳ had no obvious statistical significance (P>0.05).At the 14th day after operation,the MOD of group Ⅲ,Ⅳ and Ⅴ rats were (151.3 ±10.8 ),( 149.2 ± 10.6),(74.5 ± 5.0),Compared with group Ⅲ,the MOD of group Ⅴ was significantly increased (P<0.01 ),group Ⅳ had no obvious statistical significance (P > 0.05 ).Conclusion Intrathecal injection of CCL2 antibody can remarkly attenuate established pain facilitation of tibial bone cancer pain rats,and significantly suppress the expression of Iba-1.It suggests that CCL2 is involved in the bone cancer pain via activation of spinal microglia.