Objective To detect the expression of genes Her-2/neu,DPC4 and P16 in pancreatic carcinomas and to investigate the role of their alterations in tumorigenesis and progression of pancreatic carcinomas.Methods We studied the immunohistochemical markers Her-2/neu,DPC4 and P16 in 34 adenocarcinomas and 12 nonmalignant specimens of the pancreas,and the relationship between DPC4 alterations and various clinicopathological parameters was evaluated.Results There was a significant difference between normal pancreatic tissues and benign pancreatic lesions and primary pancreatic carcinomas for frequency of Her-2/neu expression and loss of P16 expression(P

Data Mining ; Humans ; Medicine, Chinese Traditional ; Stomach Diseases ; therapy

Objective To evaluate the efficacy of the parathyroidectomy (PTX) in the treatment of severe secondary hyperparathyroidism (SHPT) with Sagliker syndrome (SS). Methods A retrospective review was undertaken among 212 SS patients underwent PTX in our hospital and with more than 3 years' follow up. The definitions of the efficacy were based on the postoperative intact parathyroid hormone level (iPTH). Cure showed that the iPTH was ＜ 150 ng/L; marked effectiveness was 150-300 ng/L; effectiveness was 301-500 ng/L;ineffectiveness was ＞500 ng/L. The status was defined as persistent SHPT if iPTH was ＞ 150 ng/L after surgery. The status was considered as SHPT recurrence if iPTH was ＜ 100 ng/L in the first week after surgery, and gradually increased and ＞ 150 ng/L with the follow-up. Results ( 1) Ten patients were involved and the average dialysis time was 142 months [male/female: 4/6; age 30-54 (39. 3 ± 10. 4) years]. All patients had severe bone and joint pain, accompanied with progressive facial increases, chicken breast, kyphosis, hip bone deformities, and body height shortening. (2) Preoperative tests: the median of iPTH 2000(1800-2863) ng/L; serum calcium (2. 45 ±0. 21) mmol/L, phosphorus (2. 19 ±0. 51) mmol/L, alkaline phosphatase ( ALP) (1189. 8 ± 780. 0) IU/L. Two to four enlarged parathyroid glands were confirmed by ultrasound and 99Tcm-MIBI parathyroid scintigraphy. ( 3 ) Surgical procedures: local or general anesthesia for PTX. Supplement with calcium and calcitriol implemented low serum calcium after PTX. (4) Follow-up: symptoms, including bone pain, muscle weakness, skin itching, and insomnia, were significantly improved after surgery. Transient hoarseness occurred in 2 cases. The iPTHs of all patients were decreased significantly after surgery. The median of iPTH was 55.5 ( 10-967) ng/L at 1 month post PTX, and was significantly less than prior to PTX (P＜0. 001). Eight patients were cure , 1 marked effectiveness ,and 1 ineffectiveness. Two patients were persistent SHPT, and 1 died of heart failure in the 4th year after PTX. The development of bone deformities was stopped and malnutrition was improved in long-time follow up. The level of iPTH 135(28-390)ng/L(P＜0. 001 ) , serum calcium, phosphorus, and ALP showed normal in the third year. The SHPT recurrence was appeared in the 2nd and 3rd year in 2 out of 8 patients, respectively. Conclusions Total PTX can effectively treat SS by SHPT. It can improve prognosis for patients, such as bone pain disappearing, bone deformities stopping and malnutrition improving, etc. The level of iPTH may rise again in some patients in the future. Therefore, more attentions should be paid to monitoring.

Objective: To observe the changes of heart rate and the contents of angiotensin Ⅱ(AngⅡ) in blood plasma in ventricular tachycardia(VT) rats with electro-acupuncture(EA) on ‘daling’(PC7). Methods: 40 SD rats were randomly divided into normal, model, treatment and control groups with 10 cases in each. VT model was duplicated by inject CsCl in femoral vein. To observe the rats’ electrocardiogram (ECG) and record their heart rates. EA was applied to‘daling’ (PC7) on treatment group and applied to‘Taiyuan’ (LU9) on control group for 5 minutes. Then, we detected the contents of AngⅡ in the rats’blood plasma respectively. Results: The heart rate and contents of AngⅡin rat increased obviously in model group were (547?30) time/min and (353.21?49.12)pg/mL). They restored to the normal state after EA ‘daling’ (PC7) are(474?25)time/min and(268.44?47.49)pg/ mL.But the effect was not obvious in ‘Taiyuan’ (LU9). Conclusion VT rat heart can be prompted to restore to the normal state after EA ‘daling’(PC7); AngⅡ played an important role in VT.

OBJECTIVE:To study the effects of rosiglitazone(RH)on body weight,FPG,FFA and other indicators in diabe-tes model rabbit. METHODS:18 rabbits were evenly randomized into control group,model group and dextran group. The latter 2 groups were given alloxan intravenously to induce diabetes model. 3 groups were given RH(0.5 mg/kg)intragastrically,and dex-tran group was additionally given dextran 40 glucose injection(5 ml/kg)intravenously,once a day,for consecutive 3 weeks. Body weight,serum level of FPG,FFA,AngⅡ and NO were determined before and after medication. RESULTS:Compared with be-fore medication,body weight of rabbits in control group were increased after medication,while the levels of FFA and AngⅡ were decreased;the levels of FPG and FFA were decreased in model group;body weight of rabbits were decreased in dextran group af-ter medication,with statistical significance (P<0.01 or P<0.05);other indicators had no statistically significant difference (P>0.05). The level of FFA in dextran group was higher than in model group after medication,with statistical significance(P<0.01). CONCLUSIONS:Rosiglitazone can lead to weight gain by a mechanism which reduce the level of FFA.

Objective:To compare the drug release of nifedipine sustained-release tablets from four manufacturers to evaluate the intrinsic quality. Methods:The drug release rate was determined by UV respectively with pH 1. 2 HCl solution, pH 4. 0 sodium ace-tate buffer, pH 6. 8 phosphate buffer and water as the dissolution medium. The dissolution curves were compared by f2 factor. Results:The drug release rate of nifedipine sustained-release tablets from the four manufacturers all met quality standard of our country, al-though the dissolution curves in the different dissolution medium was various. Conclusion:There are differences in intrinsic quality a-mong the nifedipine sustained-release tablets from the four manufacturers. The dissolution examination standard should be improved fur-ther.

Objective:To study whether Noxa mediates cell death induced by etoposide in the human neuroblastoma(NB)cells.Methods:NB cells(TB3 and TB8) were treated with different concentrations of etoposide(0, 0.125, 0.25, 0.5 0.75, 1.0 mg/L), and the cell survival was detected by CCK8 assay.After treated with etoposide, NB cells were collected at different time points, then total RNAs were isolated and RT-qPCR was performed to detect the mRNA expression of Noxa.At the same time, the whole cell lysates were extracted and western blot was performed to detect the protein expression of Noxa.In order to evaluated the effect of Noxa on etoposide-induced cell survival, Noxa siRNA was transfected into NB cells, then CCK8 assay was performed.Results:After treatment with different concentrations of etoposide(0.125 mg/L、0.25 mg/L、0.5 mg/L、0.75 mg/L、1.0 mg/L ), the survival rates of TB3 cells were(73.13±8.45)%, (56.18±10.50)%, (33.90±4.17)%, (26.76±6.67)%, (13.49±0.58)%, respectively(compared with the control group, P<0.01); the survival rates of TB8 cells were(71.06±6.96)%, (37.45±0.68)%, (25.53±3.70)%, (20.28±2.75)%, (10.09±2.52)%, respectively(compared with the control group, P<0.01).The mRNA and protein expression of Noxa in NB cells were both increased in a time-dependent manner after treated with etoposide.The siRNA of Noxa could reduce the expression of Noxa in TB3 and TB8 cells after transfection.Treated with etoposide 0.5 mg/L, cell survival rates of TB3 cells tranfected with control siRNA, Noxa siRNA1, Noxa siRNA2 were(45.12±13.58)%, (72.70±21.34)%, (52.08±20.36)%, respectively; cell survival rates of TB8 were(35.52±0.38)%, (63.94±0.10)%, (50.27±1.62)%, respectively(compared with the control group, P<0.01); Treated with etoposide 1.0 mg/L, cell survival rates of TB3 cells tranfected with control siRNA, Noxa siRNA1, Noxa siRNA2 were(13.26±1.84)%, (51.08±2.41)%, (42.80±1.42)%, respectively(compared with the control group, P<0.05); cell survival rates of TB8 were(22.22±3.39)%, (58.00±11.37)%, (40.55±6.94)%, respectively(compared with the control group, P<0.05). Conclusion:Pro-apoptotic molecular Noxa mediated the Etoposide-induced cell death in NB cells(TB3 and TB8) in time and concentration-dependent manner.

Objective To investigate the effect of curcumin(Cur)on proliferation and apoptosis of human esophageal carcinoma drug-resistant cells Eca-109/VCR in vitro and in vivo. Methods The inhibitory effect of Cur on Eca-109/VCR was detected by CCK-8 method. The apoptosis rate of Eca-109/VCR cells after treatment with Cur was determined by flow cytometry. Eca-109/VCR xenografts were established in nude mice and inhibitory effect of Cur on xenografts was observed. HE staining was used to observe the morphological changes. Apoptosis was detect-ed by TUNEL. ELISA was used to measure Caspase-3,Caspase-8 and Caspase-9 expression in nude mice serum. Results Cur significantly inhibited the proliferation of Eca-109/VCR in a time and concentration-dependent man-ner and it could induce apoptosis of Eca-109/VCR. Cur significantly inhibited the growth of xenografts and a large number of necrosis existed in Cur group. Cur induced apoptosis in xenografts and the expression of Caspase-3,Cas-pase-8 and Caspase-9 in serum increased with the increase of Cur concentrations. Conclusion Cur could inhibit the growth of esophageal carcinoma xenografts in vitro and in vivo and its role might be up-regulating the expression of Caspase-3,Caspase-8 and Caspase-9 and associated with the apoptosis induction of drug-resistant esophageal carcinoma cells.

OBJECTIVETo explore the effect of combination of Epimedii Folium and Ligustri Lucidi Fructus on osteoporosis rats induced by retinoic acid.

METHODSixty three-month-old male Wistar rats were randomly divided into the normal control group, the model group, the Epimedii Folium group, the Ligustri Lucidi Fructus group, the combination group of Epimedii Folium and Ligustri Lucidi Fructus and the raloxifene group. The osteoporosis model was established through oral administration with retinoic acid for two weeks. Meanwhile, all of treatment groups were administered with corresponding drugs for three weeks. The contents of serum calcium (Ca), phosphorus (P), alkaline phosphatase (AKP) and tartrate-resistant acid phosphatase (StrACP) were detected, and the pathomorphological changes of femurs were observed.

RESULTThe model control group showed much lower contents of serum Ca and P than the normal control group, but with significantly higher AKP and StrACP activity than the normal control group. The femoral head area showed reduced, narrow and sparse trabecular bones, with typical osteoporosis-like changes. Compared with the model control group, all of treated groups showed significant increase in Ca and P contents in serum, and down-regulate AKP and StrACP levels, while trabecular bones became more and wider, and densely interweaved as a reticular formation. Among them, the combination group showed the most significant effect.

CONCLUSIONEpimedii Folium and Ligustri Lucidi Fructus could effectively correct the abnormal bone metabolism and improve pathological conditions of bone tissues, so as to show the anti-osteoporosis effect. The combined application of the two drugs showed a better efficacy.

Acid Phosphatase ; blood ; Alkaline Phosphatase ; blood ; Animals ; Body Weight ; drug effects ; Calcium ; blood ; Drug Interactions ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Epimedium ; chemistry ; Femur ; drug effects ; pathology ; Isoenzymes ; blood ; Ligustrum ; chemistry ; Male ; Osteoporosis ; blood ; chemically induced ; drug therapy ; pathology ; Phosphorus ; blood ; Rats ; Rats, Wistar ; Tartrate-Resistant Acid Phosphatase ; Tretinoin ; adverse effects

This study was aimed to observe changes of key molecular in insulin signaling pathway in the hypothala-mus of rats to explore the mechanism of spleen yin deficiency diabetes-associated cognitive decline (DACD) and Zibu Piyin Recipe (ZBPYR) in order to provide new ideas and new clues for treatment of DACD. Rats were randomly divided into five groups, which were the control (Cont) group, diabetes (DM) group, spleen yin deficiency (pi) group, spleen yin deficiency diabetes (piDM) group and the ZBPYR group. Insulin receptor substrate 1 (IRS-1) serine phos-phorylation levels and protein kinase B (PKB/Akt) serine phosphorylation levels which were involved in the insulin signaling were observed by western blotting in the hypothalamus to determine whether there were insulin signaling obstacles in the hypothalamus of rats. The results showed that the expression of p-IRS-1ser in the DM group, pi group and piDM group was increased compared with the Cont group (P< 0.05); while the p-Akt expression of the DM group and piDM group was decreased (P< 0.05). The expression of p-IRS-1ser in the ZBPYR group decreased compared with the DM group and piDM group (P< 0.05); while the level of p-Akt increased compared with the DM group and piDM group (P < 0.05). It was concluded that insulin signaling was not transduced normally in the hy-pothalamus of the DM group, pi group and piDM group. Insulin resistance may occur in the hypothalamus. And ZBPYR can correct insulin signaling transduction disorder.