Objective To explore the diagnosis and treatment for pancreatic cystic neoplasms.Methods The clinical data of 10 cases with pancrestic cystic neoplasms treated from 2004 to 2008 was reviewed and both domestic and internal pertinent literatures were summarized.Results The pancreatic cystic neoplasms mostly happened in middle-aged women.The clinical manifestations showed no specificity.Ultrasonography, CT and MRI could offer important sign for diagnosis.The rate of surgical resection was high and the prognosis was satis-factory.Conclusions The pancreatic cystic neoplasms is being muh with the development of imagings.It is dif-ficuh to distinguish the feature of the cystic neoplasms before surgery, so surgerical resection should be done for all cystic tumors found.

Adrenal Gland Neoplasms ; metabolism ; pathology ; Aged ; Antigens, CD20 ; analysis ; CD79 Antigens ; analysis ; Humans ; Immunohistochemistry ; Lymphoma, Large B-Cell, Diffuse ; metabolism ; pathology ; Male

Ten glycosidic compounds were isolated from an ethanol extract of Machilus wangchiana by a combination of various chromatographic techniques including column chromatography over silica gel and Sephadex LH-20 and reversed-phase flash chromatography and HPLC. Their structures were identified by spectroscopic data analysis (IR, MS, and NMR) as icariside B1 (1), boscialin-3-O-β-D-glucopyranoside (2), pisumionoside (3), isolariciresinol-9'-O-β-D-xylopyranoside (4), 5'-methoxyisolariciresinol-9'-O-β-D-xylopyranoside (5), lyoniresinol-9'-O-β-D-xylopyranoside (6), (E) -4-hydroxyphenylprop-7-ene 4-O-β-D-glucopyranoside (7), (E) - 4-hydroxy-3-methoxyphenylprop-7-ene 4-O-α-L-rhamnopyranosyl-(1 --> 6) -β-D-glucopyranoside (8), 4-hydroxy-3-methoxyphenylprop-8-ene 4-O-β-D-xylopyraosyl-(1 --> 6) -β-D-glucopyranoside (9), and 4-hydroxy-3,5-dimethoxyphenylprop-8-ene 4-O-α-L-rhamnpyranosyl-(1 --> 6)-β-D- glucopyranoside (10), respectively.
Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Glycosides ; chemistry ; isolation & purification ; Lauraceae ; chemistry ; Magnetic Resonance Spectroscopy ; Molecular Structure ; Spectrometry, Mass, Electrospray Ionization

Twelve flavonoids were isolated from an ethanol extract of Machilus wangchiana by a combination of various chromatographic techniques including column chromatography over silica gel and Sephadex LH-20 and reversed-phase flash chromatography and HPLC. Their structures were identified by spectroscopic data analysis (IR, MS, and NMR) as (+)-catechin (1), (-)-epicatechin (2), 3'-O-methyl-(+)-catechin (3), 3'-O-methyl-(-)-epicatechin (4), 3, 5, 7, 2', 5'-pentahydroxy flavan (5), (-)-naringenin (6), (-)-eriodictyol (7), (-)-liquiritigenin (8), (2R,3R)-(+)-dihydrokaempferol (9), (2R,3S)-(-)-dihydro- kaempferol (10), (2R, 3R)-(+)-taxifolin (11), and quercetin (12). Compounds 1-10 are isolated from the genus Machilus for the first time.
Drugs, Chinese Herbal ; chemistry ; Flavonoids ; chemistry ; Lauraceae ; chemistry ; Mass Spectrometry ; Molecular Structure ; Plant Roots ; chemistry

Objective To overcome the fact that SRV-NM virus can only multiple and amplify through partially pu-rified jaagsiekte retrovirus inoculated intratracheally in sheep but it cannot be augmented using in vitro cell culture, we con-structed JSRV-NM pseudovirions based on high efficiency packing system of lentivirus. Methods Lentivirus of three high efficiency packing plasmids system pMD.G, pCMV-HIV 8.2 and pHIV-eGFP was developed, and JSRV-NM-env coated plasmid pCMVJSRV-NM was used to substitute VSV-G virus coated plasmid pMD.G then co-transfected into 293T cells to replicate, package and produce restructured JSRV-NM pseudovirions. Gene expression of pseudovirion was determined through WPRE using real time PCR; Virus infectivity was detected through inoculating JSRV-NM pseudovirions into 24 pore plates. Results We construct JSRV-NM pseudovirions successfully based on the lentivirus system. JSRV-NM pseudo-virions can also be concentrated to higher titer (108 TU/mL detected by real time PCR by ultracentrifugation without signifi-cant loss of activity. JSRV-NM and VSV-G pseudovirions infected on Hela cells (both MOI= 3) respectively and no obvi-ous difference were shown on their infection efficiency detected by real time PCR. Conclusion Based on lentivirus system, JSRV-NM pseudovirions can be multipled and amplified in 293T cell culture in vitro. JSRV-NM pseudovirions is stable without loss its infection activity and the requirements of biological laboratory safety II was also met. JSRV-NM pseudoviri-ons will provide a useful tool for further study of JSRV-NM-env infection across species or its induction of lung adenocarci-noma.

Objective To investigate the relationship of Twist induced epithelial mesenchymal transitions (EMT) during pancreatic carcinoma progression.Methods The expressions of Twist,N-cadherin and Vimentin proteins were tested by immunohistochemistry in 42 cases of pancreatic carcinomas and 26 cases of adjacent paracancerous tissues.Results The positive rates of Twist,N-cadherin and Vimentin in 42 cases of pancreatic carcinomas were 76.2％,59.5％ and 57.1％,respectively.The positive rate of Twist,N-cadherin and Vimentin were all significant between pancreatic carcinomas and paired tumor-adjacent paracancerous tissues (all P ＜0.001).The differences of the expression of Twist,N-cadherin and Vimentin in pancreatic carcinoma of tumor differentiation,TNM stage,neural invasion and lymph node metastasis were significant (all P ＜ 0.05).Significantly positive correlation was found between the expression of Twist and the others (N-cadherin and Vimentin) by using spearman correlation analysis (r =0.506,P =0.001 ; r =0.417,P =0.006).Significantly positive correlation was found between the expression of N-cadherin and Vimentin by using spearman correlation analysis(r =0.462,P =0.002).Conclusions Twist signaling pathway activation might mediate pancreatic epithelial cells to EMT and then promote pancreatic carcinoma invasion and metastasis.

Objectives To explore the effect of erythromycin on glutathione hormone (GSH) and γ-glutamyl cysteine synthetase (γ-GCS) in premature newborn rats exposed to hyperoxia, to study the intervention effect of erythromycin on hype-roxia-induced lung injury. Methods One-day old preterm SD rats were randomly divided into four groups:control group, eryth-romycin group, hyperoxia group, erythromycin+hyperoxia group. Hyperoxia group and hyperoxia+erythromycin group were continuously exposed to oxygen (oxygen concentration>0.85), control group and erythromycin group were in room air. Via cau-dal vein, the preterm rats was injected with erythromycin in erythromycin group and hyperoxia+erythromycin group, sodium chloride in control group and hyperoxia group daily. After 1,7,14 day(s) of hyperoxia (or air ) exposure, the preterm SD rats of four groups were killed, whole lung of these rats were isolated and histological changes were observed by hematoxylin-eosin (HE) staining, GSH andγ-GCS of pulmonary tissue homogenate were detected by double antibody sandwich enzyme linked im-munosorbent assay. Total lung RNA was extracted andγ-GCS mRNA was detected by reverse transcription polymerase chain re-action. Results The results showed that:After 1 and 7 day(s) of exposure, the expression of GSH、γ-GCS andγ-GCS mRNA in four groups showed significant differences(P<0.05). Among them, GSH expression in erythromycin + hyperoxia group was higher than that in the other three groups in 1,7,14 day(s) of exposure with significant differences (P<0.05);GSH expression in erythromycin+hyperoxia group and hyperoxia group reached the peak after 7 days of exposure. The expression ofγ-GCS andγ-GCS mRNA in erythromycin+hyperoxia group and hyperoxia group were higher than the other two groups after 1and 7 day(s) of exposure, the expression ofγ-GCS mRNA in erythromycin+hyperoxia group were higher than that of hyperoxia group with significant differences (P<0.05). Conclusions The expressions of GSH andγ-GCS in the lung of premature SD rats were abnor-mal by oxidation outbreak. Erythromycin may increase the activity ofγ-GCS, improve the anti-oxidation ability of GSH, and al-leviate hyperoxia mediated lung injury in premature rats.

Objective To investigate the expressions of cancerous inhibitor of protein phosphatase2A (CIP2A),phosphatidylinositol 3-kinase(PI3K),and survivin in pancreatic carcinomas and their clinical significance.Methods The expressions of CIP2A,PI3K,and survivin proteins were tested by immunohistochemistry in 64 cases of pancreatic carcinomas and adjacent paracancerous tissues.Results The positive rate of CIP2A in pancreatic carcinomas was significantly higher than adjacent paracancerous tissues (70.3％ vs 5.6％,P ＜0.05).Significant difference was observed in the expression rate of PI3K between the patients with pancreatic carcinomas and paracancerous tissues (73.4％ vs 8.3％,P ＜0.05).Significant difference was also observed in the expression rate of survivin between the patients with pancreatic carcinomas and paracancerous tissues (75.0％ vs 2.8％,P ＜0.05).CIP2A,PI3K,and survivin were significantly differentially expressed in pancreatic carcinoma among different tumor differentiation,tumor node metastasis (TNM) stage,and neural invasion and lymph node metastasis (all P ＜ 0.05).Spearman correlation analysis showed significantly positive correlation between the expressions of CIP2A and the others (PI3K and survivin) (both P ＜0.05),and between the expressions of PI3K and surviving (P ＜0.05).Conclusions CIP2A was involved in the development of pancreatic carcinomas and might activate the PI3K/Akt/survivin pathway.Our data identified CIP2A as a critical oncoprotein involved in cell proliferation,invasion,and metastasis.It could serve as a therapeutic target for pancreatic carcinomas.

Objective To explore the efficacy and safety of mild hypothermia (MH) in treating the infants with moderate-to-severe neonatal hypoxic-ischemic encephalopathy(HIE),and to make a follow-up of the nerve motor development of the infants at 18 months old after discharge.Methods Totally 61 neonates with moderate-to-severe HIE in Neonatal Intensive Care Unit (NICU) from Jan.2007 to Dec.2013 were retrospectively analyzed.According to before and after MH therapeutic apparatus was used by NICU of Shanghai Children's Hospital,61 neonates of HIE were divided into 2 groups,the conventional treatment group(25 cases) and MH treatment group(36 cases).The patients in both groups were measured respectively by using the amplitude integrated electroencephalography (aEEG) before MH treatment and at 72 hours after M H treatment,by neonatal behavioral neurological assessment(NBNA) on the 28th day after birth,and by adopting Bayley Scales of Infant Development at 18 months old.The adverse reactions,serious disability cases and deaths of MH treatment were recorded.Results Compared with the conventional treatment group,aEEG recording before treatment showed no statistically significant differences in MH treatment group [maximum voltage:(22.4 ±3.1) μV vs(18.6 ±2.5) μV,maximum voltage:(8.2 ±2.6)μV vs(6.5 ±1.9) μV,t =1.264,0.852,all P ＞ 0.05].However,aEEG recording at 72 h after treatment showed statistically significant differences in MH treatment group [maximum voltage:(24.1 ± 3.2) μV vs (30.6 ± 2.8) μV,maximum voltage:(9.7 ± 3.4) μV vs (13.3 ± 2.2) μV,t =6.376,4.257,all P ＜ 0.05].Severe disability cases [24.0％ (6/25 cases) vs 5.6％ (2/36 cases),x2 =4.405,P ＜ 0.05] and deaths [16.0％ (4/25 cases) vs 0 (0/36 case),x2 =6.1 64,P ＜ 0.05] in MH treatment group were significantly decreased,and there was significantly difference in NBNA on the 28th day after birth[(35.9 ± 2.1) vs(39.1-± 1.6),t =3.361,P ＜ 0.05],and scales of neurobehavioral evaluation through follow-up of 18 months old [mental development index (MDI):(85.2 ± 10.7) vs (96.5-± 13.1),t =7.839,P ＜ 0.05].Very few neonates had apnea,coagulation dysfunction,arrhythmia and other adverse reactions in MH treatment course.Conclusions MH treating moderate-to-severe HIE is safe and effective.MH is effective in reducing death and major disabilities in neonates with moderate-to-severe HIE and without significant side effects.MH can obviously improve the development of nervous system disorders in 0-18 months infants,and can significantly improve these infants' Bayley developmental scale neurobehavioral scores.

Objective To explore the effect of macrolide antibiotics(erythromycin) on tumor necrosis factor(TNF)-α and interleukin(IL)-8 in hyperoxia-induced lung tissue of premature newborn rats,and to study the intervention effect of erythromycin on hyperoxia-induced lung injury.Methods One-day old preterm Sprague Dawley rats were randomly divided into four groups by random number table method:air + sodium chloride group,air + erythromycin group,hyperoxia + sodium chloride group,hyperoxia + erythromycin group.Hyperoxia groups were continuously exposed to oxygen (oxygen ＞ 0.85) and air group in room air.After 1,7,14 days of exposure,the preterm rats of four groups were sacrificed,whole lung of these rats were isolated,the lung histological changes were observed by hematoxylin-eosin staining,TNF-α and IL-8 in pulmonary tissue homogenate were detected by ELISA.Results The results showed that:(1) Compared with air + sodium chloride group,TNF-α and IL-8 expression in hyperoxia + sodium chloride group were significantly increased(P ＜ 0.05) after 1,7 days of exposure [1 d:TNF-α:(16.163 ± 0.574) ng/ml vs.(21.923 ±2.066) ng/ml,IL-8:(18.214 ±3.649) ng/ml vs.(23.546 ± 5.240) ng/ml ;7 d:TNF-α:(15.940 ±0.821) ng/ml vs.(19.688 ±0.764) ng/ml,IL-8:(18.541 ± 4.114) ng/ml vs.(24.255 ±4.692) ng/ml],in particular,TNF-α expression appeared to increase earlier,their expression became significantly weak in 14 days (P ＜ 0.05).(2) Compared with hyperoxia + sodium chloride group,TNF-α and IL-8 expression in hyperoxia +erythromycin group became significantly weak after 1,7,14 days of exposure(P ＜0.05) after the intervention of erythromycin [1 d:TNF-α:(21.923 ± 2.066) ng/ml vs.(18.903 ± 1.851) ng/ml,7 d:IL-8:(24.255 ±4.692) ng/ml vs.(23.508 ±3.543) ng/ml,14 d:TNF-α:(16.443 ±5.466) ng/ml vs.(14.453 ±0.963)ng/ml],but their expression became weaker in 14 days than that in 1,7 days.Conclusion The release of inflammatory mediators TNF-α and IL-8 induced by oxidation outbreak participates in the development of hyperoxia induced lung injury,erythromycin may regulate immune function,inhibits the levels of oxidant-mediated TNF-α and IL-8 induced by oxidation outbreak,and alleviate hyperoxia lung injury in premature rats.