Objective To study the antitumor activity of extract from Salvia plebeia and investigate whether the extract induce apoptosis of K562 cells. Methods The aqueous, petroleum ether, dichloromethane (CH2Cl2), ethyl acetate, and butanol extracts were prepared from the aerial parts of 5. plebeia. Taking fluorouracil as reference, the cytotoxic activities of these extracts on HeLa, A549, SGC-7901, HCT-116, K562, LoVo, DU-145, and HepG2 cells were evaluated. To clarify the apoptosis of K562 cells induced by CH2Cl2 extract, the methods of Hoechst 33258 staining, flow cytometry assay, and DNA ladder assay were investigated. Results The CH2Cl2 extract showed the most potent cytotoxic effect against K562 cells, with an IC50 < 15 μg/mL for 3 d treatment. The characteristic apoptotic symptoms such as DNA fragmentation and chromatin condensation were also observed in the K562 cells. Conclusion The CH2Cl2 extract from S. plebeia may inhibit the cancer cell proliferation by inducing cell apoptosis.

Objective To investigate the significance of T‐SPOT .TB and real‐time quantitative Polymerase Chain Reaction (PCR) in the diagnosis of extrapulmonary tuberculosis .Methods Among the 125 cases of extrapulmonary tuberculosis group ,all the 125 cases were performed in accordance with the acid fast bacilli smear ,TB‐PCR and T‐SPOT .TB detection .87 cases of Non‐tuberculosis disease group were detected .Results Among 125 cases of extrapulmonary tuberculosis ,4 cases were positive for acid fast bacilli smear and the positive rate was 3 .2% ;57 cases were positive byTB‐PCR and the positive rate was 45 .6% ;96 cases were positive by T‐SPOT .TB and the positive rate was 76 .8% .wo methods were detected in104 cases of positive patients ,the positive rate was 83 .2% .3 cases were positive by TB‐PCR and the positive rate was 3 .4% in 87 cases with non tuberculosis disease group . 4 cases were positive by T‐SPOT .TB and the positive rate was 4 .6% .Conclusion Here is an important practical value in the diag‐nosis of T‐SPOT .TB detection technology in extra pulmonary tuberculosis ,and TB‐PCR joint detection could further improve the detection rate of pulmonary tuberculosis .

Objective To investigate clinical efficacy and safety of the memantine and donepezil in the treatment of moderate to severe Alzheimer's disease,in order to provide the basis for clinical treatment.Methods One hundred and twelve cases of moderate to severe Alzheimer's disease patients were given memantine plus donepezil(observation group) ,and single use of memantine treatment(control group), and the treatment for 24 weeks.Respectively before and after treatment, Mini Mental State Scale (MMSE), Alzheimer' s disease assessment scale (ADAS-cog), Alzheimer' s disease collaborative learning, daily life ability questionnaire (ADCS-ADL) ,and neuropsychological questionnaire (NPI) score, and adverse reactions were observed in the process of two kinds of therapy, the efficacy and safety of two kinds of treatment methods were evaluated.Results After treatment, the patients in observation group with MMSE, ADAS-cog, ADL and NPI evaluation results were (12.1 ± 2.1), (32.9 ± 8.3), (33.4 ± 5.0), (6.1 ± 3.1) scores, significantly improved compared with scoring (9.9±2.8), (46.2±7.6), (42.1±6.0), (10.5±2.9) scores before treatment,and the differences were statistically significant (t =2.138,-2.411,2.398, 2.107 respectively, P ＜ 0.05).The control group after treatment in patients with MMSE, ADAS-cog, ADL and NPI evaluation results were (12.3±2.6), (33.1 ±7.2), (35.1 ±6.6), (6.7 ± 2.9) scores, significantly improved compared with scoring 11.0 ± 2.5,44.9 ± 6.9,42.2 ±6.6,10.9 ± 3.5 before treatment, and the difference had statistical significanc (t =2.101,-2.033,2.105, 2.400 respectively, P＜0.05).After treatment, the difference of patients in the two groups of MMSE, NPI score had statistical significance(t =2.553,2.176, P＜0.05).The adverse reactions in two group respectively were 32.14％ (18/56) and 26.79％ (15/56), less difference was no statistical significance (P＞0.05).Vital signs checks,regular laboratory examination and ECG examination showed no obvious abnormalities.Conclusion Memantine combined with donepezil in the treatment of moderate and severe AD patients is superior to the singleeffect of memantine, and long-term use will not increase the risk of adverse reactions, which is safe and effective in the combined application.

Objectives To analyze the clinical features and long-term follow-up results of neuroblastoma (NB) without chemotherapy and radiotherapy, and to provide evidence for further improvement of treatment. Methods The clinical data of children diagnosed with NB who received operation during January 2005 to December 2015 was retrospectively analyzed, and the long-term follow-up results were evaluated. Results In 57 cases of NB, 43 cases (81.1％) were in stage 1, 8 cases were in stage 2 and 2 cases were in stage 4S. The median age at diagnose was 7 months (11 days - 10 years and 11 months). There were 47/51 cases had the pathological type with a good prognosis (accounting for 92.2％). FISH was detected in 1/49 case which had the amplification at greater than 10 copies. 56/57 cases underwent surgical resection of the primary tumor, 50 cases of which were completely resected, and 3 cases had very good partial remission after tumor resection. The abdominal mass was found in the uterus in 1 case, and surgical operation was not performed and the imaging was regularly checked for follow-up , and the mass subsided completely at 7-month-old. The median follow-up time was 36 months (4 - 99 months). Five children were lost to follow-up and the median time of follow-up was 19 months (4 - 45 months). One child in stage 4S relapsed at 1 year of follow-up, 2 cases in stage 1 relapsed at 6 months of follow-up. Five years event free survival rates (EFS) in all patients were 94.6％, and overall survival rate (OS) of the 5 years was 100％. Conclusions Children younger than 18 months without MYCN amplification in the stages 1 and 2 are safe by surgical treatment alone with good prognosis. Simple surgical treatment can also be extended to all age groups of NB without MYCN amplification in the stages 1 or 2.

Objective To investigate the association between serum homocysteine (Hcy) level and oxidative stress in elderly patients with obstructive sleep apnea/hypopnea syndrome (OSAHS). Methods The 123 patients from January 2007 to June 2010 were recruited and divided into the elderly OSAHS group (n=55) and the non-elderly OSAHS group (n=68). One hundred healthy subjects were selected and divided into the elderly control group (n=52) and the non-elderly control group (n=48). The PSG variables were recorded and the levels of Hcy, malondialdehyde (MDA) and glutathione (GSH) were detected after sleep in all subjects. Serum Hcy level was measured by cyclophorase, MDA and GSH levels were measured by spectrophotometer. Results There were statistical differences in Hcy concentration between four groups (F=28.26, P=0.000). The Hcy concentration was higher in elderly OSAHS group than in other groups, and was higher in elderly control group than in non-elderly control group, and was higher in non-elderly OSAHS group than in non-elderly control group. There were statistical differences in MDA and GSH concentrations between the four groups (F=5.56, P=0.002;F=4.79, P=0.004). The concentrations of MDA and GSH were higher in elderly OSAHS group than in other groups. Multiple regression analysis indicated a statistically significant relationship of Hcy concentration with age, MDA, GSH and AHI (β=0.07, 0.50, 0.23 and 2.00). Conclusions The concentration of Hcy increases and oxidative stress enhances with aging, especially in the elderly patients with OSAHS. The mechanism of high level of serum Hcy in elderly patients with OSAHS may be the high oxidative stress.

Objective To evaluate the efficacy and safty of antiviral treatment for chronic hepatitis B ( CHB ) patients in second trimester of pregnancy.Methods Seventy-nine CHB patients in second trimester of pregnancy were collected from Hangzhou First People’ s Hospital and Xixi Hospital of Hangzhou during January 2010 to December 2013.Patients were divided into antiviral treatment group ( n=47) and the control group (n=32) according to their own wishes.Patients in antiviral treatment group were given lamivudine or telbivudine treatment plus hepatoprotective medication, while those in control group were only given hepatoprotective medication.All pregnant women were observed for 12 weeks after childbirth and the neonates were followed-up for 6 months after birth.The liver function, HBV DNA loads, HBV serological markers were measured;adverse effects during pregnancy, blocking rates of mother-to-child transmission and the growth of neonates were documented.t test or Chi-square test was used for statistical analysis.Results Alanine aminotransferase ( ALT) normalization rate and HBV DNA negative rate in antiviral treatment group before childbirth were 88.6%(39/44) and 84.1%(37/44) , while those in the control group were 60.0%(18/30) and 0 (χ2 =8.27 and 50.46, P<0.05).After 12 weeks of childbirth, ALT normalization rate and HBV DNA negative rate in antiviral treatment group were both 100.0% (44/44), which were higher than those in control group (90.0%and 0) (χ2 =4.59 and 74.00, P<0.05).HBeAg seroconversion was observed in 1 (2.8%) and 4 (11.1%) patients in antiviral treatment group before and 12 weeks after childbirth, but it was not observed in the control group.The difference in HBeAg seroconversion rate bwteen two groups was not of statistical significance (P>0.05).No patient in antiviral treatment group terminated pregnancy due to abnormal liver function or adverse effect of drugs, while 2 out of 30 patients (6.7%) in the control group terminated the pregnancy, but the difference between two groups was not of statistical significance (χ2 =1.01, P >0.05).Mother-to-child transmission of HBV was successfully blocked in antiviral treatment group, while 3 cases (11.5%) in control group were failed (χ2 =5.19, P<0.05).No significant differences in gestational age, body mass, body length, Apgar score between two groups were observed (t=0.65, 0.84, 0.25 and 0.77, P>0.05).Conclusion Antiviral treatment can improve liver function, inhibit HBV replication and reduce the risk of mother-to-child transmission, and is safe for CHB patients in second trimester of pregnancy.

Objective To construct a voxel mouse model combining with Monte Carlo method used for radiation dose calculation.Methods A set of slice images obtained from a nude male mouse (28 g) was utilized, all slice images were registered,some organs or tissues were identified, segmented and filled with specific color, and finally the physical property was defined by MCNP application.Results A mouse model with a voxel size of 0.2 mm×0.2 mm×0.2 mm, consisting of 14 organs or tissues,was constructed, which could satisfy the requirement of precision for radiation dose distribution calculation and moderate computing time.Conclusion The voxel mouse model can be used to calculate the quantity of ionization radiation dosimetry in related areas including radiological medicine, nuclear medicine and space radiation medicine.

OBJECTIVEThe aim of this study was to review the etiology and pathogenesis of patients who underwent surgery for mechanical bowel obstruction. The treatment and prognosis of bowel obstructions caused by intra-abdominal tumors were compared with those due to other causes.

METHODSThe clinical data of 203 patients with mechanical bowel obstruction undergoing operation were analyzed retrospectively. The tumor cases were classified as group I, and all other cases as group II. A range of factors were investigated to estimate the postoperative outcome: gender, age, comorbidities, symptoms and findings of physical and radiological examinations, sites of the obstruction, etiology, therapeutic approach, postoperative complications and mortality.

RESULTSGroup I included 73 patients and Group II 130. Large bowel carcinoma and peritoneal adhesions were the most common causes of Group I and II, contributing 58 and 86 of all cases, respectively. There was no significant difference in terms of gender between the two groups, but the rate of elderly (≥ 70 years) patients was significantly higher (53.4%) than that of the < 70 years old patients (35.4%) (P = 0.012). There was a significant difference between the patients with previous surgical operation history in the tumor group (23.3%) and non-tumor group (58.5%) (P < 0.001). In the 73 cases of the tumor group, the obstruction was located in the large bowel in 58 cases (79.5%), small bowel in 12 cases (16.4%), both small and large bowels in 2 cases (2.7%) and gastric cancer invading the splenic flexure of colon in 1 case, while in the non-tumor group, 111 cases (85.4%) of the obstruction was located in the small bowel and 19 cases (14.6%) and in the large bowel (P < 0.001). Sixty-six cases (90.4%) of the tumor-group underwent intestinal segment excision and 21 cases (28.8%) underwent intestinal fistulation in the tumor group, but in the non-tumor group 61 cases (46.9%) underwent intestinal segment excision and 5 cases (3.8%) underwent intestinal fistulation (all P < 0.001). The hospital stay was (18 ± 6) days in the tumor group and (11 ± 3) days in the non-tumor group (P < 0.01). The complication rate (P = 0.104) and mortality rate (P = 0.187) were not significantly different between the two groups.

CONCLUSIONSTumor mechanical bowel obstruction is more frequently seen in patients in elder age, with colorectal location and without previous operation history. CT scan may provide effective diagnosis and ascertain the presence of the malignant obstruction. Intestinal fistulation is more often needed in patients with tumor intestinal obstruction and endoscopic stenting is a safe option in selected patients with tumor intestinal obstruction.

Adult ; Age Factors ; Aged ; Aged, 80 and over ; Female ; Humans ; Intestinal Neoplasms ; complications ; diagnostic imaging ; surgery ; Intestinal Obstruction ; diagnosis ; diagnostic imaging ; etiology ; surgery ; Length of Stay ; Male ; Middle Aged ; Peritoneal Diseases ; complications ; diagnostic imaging ; surgery ; Postoperative Complications ; Retrospective Studies ; Tissue Adhesions ; complications ; diagnostic imaging ; surgery ; Tomography, X-Ray Computed ; Young Adult

To establish a UPLC-MS/MS method for the simultaneous determination of geniposide, genipin 1-O-beta-D-gentiobioside and geniposidic acid in rat brains and study the brain pharmacokinetics of the three iridoid glycosides in stroke rat after the oral administration of Xingnaojing. In this experiment, brain samples were precipitated with protein for twice. Acquity BEH C18 column was adopted, with acetonitrile-0.1% formic acid-water as the mobile phase for gradient elution. ESI source was adopted for mass spectra; multiple reaction monitoring (MRM) was conducted to detect negative ions. The time for sample analysis was 3.5 min. the results showed good linear relations among the three iridoid glycosides, with the extraction recovery between 99.6% and 114.3%, good intra- and inter-day precisions and accuracies and stability in line with the requirements. The t1/2 and MRT in the three components were similar in brains of stroke rats. Geniposide and genipin 1-O-beta-D-gentiobioside showed double peaks; where as geniposidic acid showed a single peak. In conclusion, the method is so specific, sensitive, accurate and reliable that it can be used to study the brain pharmacokinetics of Xingnaojing oral preparation.
Animals ; Brain ; metabolism ; Brain Chemistry ; Chromatography, High Pressure Liquid ; methods ; Drug Stability ; Drugs, Chinese Herbal ; chemistry ; pharmacokinetics ; Iridoids ; chemistry ; pharmacokinetics ; Male ; Rats ; Rats, Sprague-Dawley ; Tandem Mass Spectrometry ; methods

OBJECTIVETo investigate the influence of total flavonoids of epimedium (TFE) on the streptozocin (STZ)-induced kidney injury in diabetic rats and discuss the possible mechanism.

METHODSDiabetes was produced by a single injection of streptozocin (40 mg/kg, iv) in male SD rats. The rats were randomly divided into three groups (n = 10): control group, model group and TFE group (100 mg/kg, ig). Animals were sacrificed 12 weeks later. The level of blood glucose, blood urea nitrogen (BUN) and creatinine (Cr) as well as the renal index were determined. Detect the specific biochemical of renal tissue: superoxide dismutase (SOD), malondialdehyde (MDA). Use masson staining to observe the morphology of the renal tissue. Immunohistochemistry was employed to determine the protein levels of transforming growth factor-beta1 (TGF-beta1).

RESULTSCompared to control group, the enhancement of blood glucose, renal index, BUN and Cr was found in model group, which was significantly attenuated by treatment with TFE. Meanwhile, elevated MDA level in renal tissue as well as decreased SOD activities in renal tissue were significantly remitted by TFE. Furthermore, TFE decreased the expression of TGF-beta1.

CONCLUSIONTFE can evidently relieve renal damage in rats with diabetic nephropathy induced by STZ, which might be related to antioxidation and modulating the expression of TGF-beta1 protein.

Animals ; Diabetes Mellitus, Experimental ; metabolism ; Diabetic Nephropathies ; metabolism ; prevention & control ; Epimedium ; chemistry ; Flavonoids ; pharmacology ; Kidney ; drug effects ; metabolism ; Male ; Rats ; Rats, Sprague-Dawley