Adult ; Female ; Heart Diseases ; etiology ; Humans ; Male ; Mitochondrial Diseases ; complications ; Young Adult

Objective To explore the CT features in CD_(117)-weak and CD_(117)-negative gastrointestinal stromal tumors(GIST).Methods The CD_(117)-weak and CD_(117)-negative Gist proved by pathologically and sur- gically in 13 cases were retrospectively analyzed.Results The tumor was located in the stomach in 6 cases, small intestine in 4 cases,colorectum in 2 cases,greater omentum in one case.The most common clinical manifestations were abdominal pain or discomfort in 6 cases,hematemesis or melena in 3 cases.Malignant tu- mors occurred in 8 cases.Benign tumors occurred in 5 cases.A soft tissue was identified in all 13 cases in CT examination.The CT examinations revealed cystic regions and bleeding in 5 cases.Calcification was not noted within the masses in all cases.The mean diameter of benign tumors was 3.4 cm?2.8 cm while that of malig- nant tumor was 7.5 cm?6.2 cm.All the cases underwent operation,the resection rate was 100%.After follow up from 6 months to 4 years in 10 cases,1 case died of tumor recurrence and metastasis,the others survived. Conclusion CD_(117)-weak and CD_(117)-negative Gist occurred more common in the stomach.CT is useful in lo- cation and differentiation of CD_(117)-weak and CD_(117)-negative gastric stromal tumors with regard to benign or malignant.Surgery is the main method for final diagnosis and treatment.

Objective To evaluate the prognostic factors in locally advanced non-small-cell lung cancer (LA-NSCLC) for selectively carrying out prophylactic cranial irradiation (PCI).Methods 114 patients with LA-NSCLC between Jun 2006 and Oct 2010 were retrospectively analyzed. Related risk factors and features about brain metastases were analyzed.Results The 2-year incidence rate of brain metastases was 31.58 ％ (36/114),the first brain metastases was 20.18 ％ (23/114),and sole brain metastases was 9.65 ％(11/114),respectively.Variables involved in the equation of binary logistic regression analysis were pathology (OR =5.892) and treatment mode(OR =2.888).The incidence rate of brain metastases in patients of non-squamous carcinoma and single treatment mode was higher than others (P ＜ 0.01) Model fitting is better (P ＞ 0.05).Overall accuracy rate of predicting brain metastases is 67.7 ％.The increased rate of lactate dehydrogenase in the patients with brain metastases or death was 17.54 ％, which was higher than that in the survival patients without brain metastases (P ＜ 0.01).At the same time,the station number and the number of mediastinal lymph node metastases were positively correlated (r =0.716, P ＜ 0.01).The incidence rate of brain metastases or mortality rate was higher in the adenocarcinoma cases than that in the squamous carcinoma cases (P ＜ 0.01,P ＜ 0.05),with more frequent occurrence of mediastinal metastases.The mean diameter of squamous carcinoma and adenocarcinoma were 5.8 cm and 3.9 cm, respectively (P ＜ 0.01).Conclusions The incidence rate of brain metastases was higher in patients with single treatment.Large primary tumors, high lactate dehydrogenase, non-squamous carcinoma, multiple stations, and multiple mediastinal lymph nodes metastases can be regarded as risk factors of brain metastases to perform PCI.

Actins ; metabolism ; Bone Neoplasms ; blood ; complications ; diagnostic imaging ; pathology ; surgery ; Diagnosis, Differential ; Female ; Humans ; Hypophosphatemia ; blood ; etiology ; Ilium ; Mesenchymoma ; blood ; complications ; diagnostic imaging ; pathology ; surgery ; Middle Aged ; Osteomalacia ; blood ; etiology ; Phosphates ; blood ; Platelet Endothelial Cell Adhesion Molecule-1 ; metabolism ; Tomography, X-Ray Computed

Background Researches showed that wild-type p53(wtp53)and Rb94 genes inhibit the growth of retinoblastoma(RB),and these genes are involved in signal pathway in the induction and maintenance of cellular senescence.Thus the combination of two genes to inhibit growth of RB is concerned.Objective This study was to observe the inhibitory effect of the co-transfection of Rb94 and wtp53 gcnc into subretina on RB with ultrasound microbubble.Methods HXO-Rb44 suspension was subretinally injected to establish the RB model in 40 SPF female Balb/c nude mice.The RB models were randomized into model control group,wtp53 group,Rb94 group and wtp53+Rb94 group,and 0.1 ml relevant gene microvesicle suspension was injected via caudal vein in the different groups,but no any gene was used in the model control group.Seven days after modeling,followed by 0.5 W/cm2ultrasonic wave irradiated the eyeballs immediately for 4 seconds ×2 times and interrupted for 24 seconds.Eyeballs were extracted 7 days after gene transfection,and the expressions of wtp53 mRNA and Rb94 mRNA in tumor tissuc were detected by RT-PCR,and wtp53 and Rb94 protein in tumor tissue were assayed using Western blot.Immunochemistry was used to exam the VEGF expression,and TUNEL was used to evaluate the apoptosis of the tumor cells.Results The model successful rate after HXO-Rb44 suspension was 80％ (32/40)and obvious malformation cells were seen under the light microscope.In 7 days after gene transfection,no response band for wtp53 mRNA and Rb94 mRNA were found.The relative expression valuc of wtp53 mRNA was 0.65±0.07 in the wtp53 group,and that in wtp53+Rb94 group was 0.32±0.02,showing a significant difference between them (t =11.743,P =0.000).Rb94mRNA relative value was 0.42 ±0.03 in Rb94 group,and that in the wtp53 + Rb94 group was 0.23 ± 0.03,with a significant difference(t=5.041,P=0.001).The response bands of wtp53 and Rb94 proteins were seen in wtp53group,Rb94 group and wtp53+Rb94 group.Immunochemistry showed that the positive reactive intensity for VEGF in tumor tissue was obviously weaker in wtp53+Rb94 group than that in the wtp53 group,Rb94 group and model control group.Apoptotic index(Al) was 37.35±2.14 in the wtp53+Rb94 group,showing a significant increase in comparison with model control group (0.46 ± 0.05),wtp53 group (5.05 ± 0.80) and Rb94 group (6.43 ± 1.02) (t =-34.395,-28.206,-26.006,P＜0.01).Conclusions Ultrasound microvesicle enable double gene transfecting into RB tumor tissue,and Rb94 gene cooperation with wtp53 gene enhance the inhibitory effect on RB by promoting the apoptosis of RB cells.

Objective: To investigate the preparation procedure of Zhenjing Xiehuo granules. Methods: Using the dry extract yielding rate and the contents of liquiritin and salvianolic acid B as the indices, an orthogonal test was adopted to choose the best ex-traction and purification technology. Using the qualified ratio of granules as the index, an orthogonal test was adopted to choose the best preparation process of the granules. Results:The optimized preparation conditions were as follows:Pulvis ferri was decocted first for 60 min. The other medicines were dipped in 8-fold amount of water for 90 min, and then added into pulvis ferri extracts and decocted for 3 times with 90 min for each time. The extracts were collected and concentrated till the relative density was 1. 3 (measured at 60℃), water was added with the dilution ratio of 1:2, ethanol was added till the percentage of ethanol was 50%, and then the mixed liquid was filtered after 24 hours. After ethanol was recycled from the filtrate, the filtrate was concentrated till the relative density was 1. 3 (measured at 60℃), and then dried at 60℃. Starch as the diluent, the ratio of extract to excipient was 1:0. 8, and the wet granules were prepared with 90% ethanol as the wetting agent, dried 3 hours at 60℃ followed by size stabilization to obtain the products. Con-clusion:The optimized preparation procedure of Zhenjing Xiehuo granules is stable and feasible.

In order to provide a scientific basis for the establishment of a Daphnes Cortex medicinal material fungus library and the screening of endophytic fungi that promote the growth of Daphnes Cortex and increase the content of daphnetin, we used Illumina high-throughput testing technology to analyze 9 Daphnes Cortex samples from Gansu and Shanxi provinces. A total of 632 766 valid sequences were obtained, including 348 OTUs, 4 phyla, 20 classes, 48 orders, 108 families, 154 genera, and 208 species. The sum of the first 3 fungal genera account for more than 65% of the total abundance, with the highest reaching 98.4%. Alternaria and Phoma are the main genuses of Daphne giraldii Nitsche, and Altemaria is the dominant genus. The endophytic fungi community of Daphnes Cortex is rich in diversity, and the order of fungal diversity in different producing areas is: Gangu County > Wutai County > Tanchang County.

Objective To examine the effects of exogenously administered intermedin (IMD,adrenomedullin-2) on arterial blood pressure,cardiac function and the cardiovascular IMD receptor system in spontaneously hypertensive rats (SHRs) as well as to investigate the associated mechanisms.Methods Thirteen week-old male rats were divided in Wistar Kyoto (WKY) group (n =12),SHR group (n =12),IMD group (SHRs infused with IMD 1-47 500 ng/kg per hour,n =12),and ADM group (SHRs infused with adrenomedullin 500 ng/kg per hour,n =12).Results A two-week continuous administration of low dose IMD 1-47 via mini-osmotic pumps markedly reduced blood pressure,the maximal rates of increase and decrease of left-ventricle pressure development (LV ± dp/dtmax),left ventricular systolic pressure and heart rate in SHRs.Furthermore,IMD also inhibited protein over-expression of cardiovascular IMD receptors,myocardial Receptor Activity-Modifying Proteins (RAMP1 and RAMP2),aortic RAMP1,RAMP2,RAMP3,and calcitonin receptor-like receptor (CRLR);suppressed up-regulation of aortic RAMP1,RAMP2,RAMP3 and CRLR gene expression; and markedly elevated the mRNA abundance of myocardial atrial natriuretic peptide (ANP) and myocardial brain natriuretic peptide (BNP).Additionally,IMD 1-47 administration in SHRs increased aortic cAMP concentration and reduced myocardial cAMP concentration.Conclusion These findings support the speculation that IMD,as a cardiovascular active peptide,is involved in blood pressure reduction and cardiac function amelioration during hypertension.The mechanism underlying this effect may involve IMD binding of a receptor complex formed by RAMPs and CRLR,and consequential regulation of cAMP levels and other cardiovascular active factors,such as ANP and BNP.

This study aimed at unfolding the therapeutic effects of freeze-dried powder separated from Shuang Xia decoction (SXD) on female senile drosophila melanogaster with fragmented sleep.Taking drosophilas as the model organisms,the locomotor activity was monitored using the autonomic monitoring software to explore the regulation of fragmented sleep in senile drosophilas by the treatment of SXD.As a result,it was found that the optimum concentration of SXD was 2.50％,while the desirable therapeutic duration was 4 days.In comparison with the control group,35-day-old virgin drosophilas'sleep was prolonged in the SXD group and the positive control group.The positive drug mainly affected their sleep in the daytime,while SXD impacted their sleep at night featuring the prolonged fragmented sleep.In conclusion,it was demonstrated that the freeze-dried powder of SXD effectively alleviated intermittent insomnia in the female senile drosophilas.Compared with positive drug,SXD also mitigated intermittent insomnia at night without significant changes in the sleep of the drosophilas in the daytime.Above all,SXD was beneficial in the regulation of sleep-wake rhythm in the drosophilas.

OBJECTIVETo investigate the expression of ghrelin and its receptor, growth hormone secretagogue receptor (GHS-R), in the hypothalamus and gastrointestinal tract in rats with chronic renal failure (CRF) and explore their relationship with the disorder of gastrointestinal tract motility.

METHODSSD rats were randomly divided into sham-operated group (n=8) and CRF group (n=16), and in the latter group, the rats were subjected to 5/6 nephrectomy to induce CRF. Real-time PCR and immunohistochemical staining were used to detect the distribution of mRNA and protein of ghrelin and GHS-R in the gastric fundus, duodenum, and hypothalamus.

RESULTSThe rats in the CRF group showed a significantly higher expression of ghrelin mRNA and protein in the gastric fundus but a lower expression in the hypothalamus than those in the sham-operated group (P<0.01), but the expression in the duodenum was similar between the two groups (P>0.05). The expression of GHS-R mRNA and protein in the gastric fundus was significantly higher in the CRF group than in the sham-operated group (P<0.01), while in the hypothalamus and duodenum, the expression was significantly lower in the CRF group (P<0.01).

CONCLUSIONThe different distribution patterns of ghrelin and GHS-R in the tissues may be an important pathological basis of gastrointestinal motility disorder in CRF.

Animals ; Gastrointestinal Tract ; metabolism ; Ghrelin ; genetics ; metabolism ; Hypothalamus ; metabolism ; Kidney Failure, Chronic ; metabolism ; Male ; RNA, Messenger ; genetics ; metabolism ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Receptors, Ghrelin ; genetics ; metabolism