AIM To establish a UPLC-MS/MS method for the simultaneous content determination of chlorogenic acid,mulberroside A,dihydromorin,oxyresveratrol,quercetin,kaempferol,mulberrofuran G,kuwanon G,sanggenon C,sanggenone D and morusin in Mori Cortex.METHODS The analysis was performed on a 35 ℃ thermostatic Brownlee SPP C18 column ( 2.1 mm × 100 mm,2.7 μm ),with the mobile phase comprising of acetonitrile ( containing 0.1％ formic acid)-5 mmol/L ammonium acetate flowing at 0.5 mL/min in a gradient elution manner,and electron spray ionization source was adopted in negative ion scanning with multiple reaction monitoring mode.RESULTS Eleven constituents showed good linear relationships within their own ranges (R2>0.9950),whose average recoveries were 94.53％-103.58％ with the RSDs of 2.51％-6.92％.Kaempferol was not detected in 18 batches of medicinal materials,oxyresveratrol,quercetin,mulberrofuran G,kuwanon G and morusin mainly existed in the outer crude bark,and mulberroside A content demonstrated obvious difference in different producing areas of medicinal materials.CONCLUSION This stable,rapid and sensitive method can be used for the quality control of Mori Cortex.

AIM To establish a UPLC-MS/MS method for the simultaneous content determination of chlorogenic acid,mulberroside A,dihydromorin,oxyresveratrol,quercetin,kaempferol,mulberrofuran G,kuwanon G,sanggenon C,sanggenone D and morusin in Mori Cortex.METHODS The analysis was performed on a 35 ℃ thermostatic Brownlee SPP C18 column ( 2.1 mm × 100 mm,2.7 μm ),with the mobile phase comprising of acetonitrile ( containing 0.1％ formic acid)-5 mmol/L ammonium acetate flowing at 0.5 mL/min in a gradient elution manner,and electron spray ionization source was adopted in negative ion scanning with multiple reaction monitoring mode.RESULTS Eleven constituents showed good linear relationships within their own ranges (R2>0.9950),whose average recoveries were 94.53％-103.58％ with the RSDs of 2.51％-6.92％.Kaempferol was not detected in 18 batches of medicinal materials,oxyresveratrol,quercetin,mulberrofuran G,kuwanon G and morusin mainly existed in the outer crude bark,and mulberroside A content demonstrated obvious difference in different producing areas of medicinal materials.CONCLUSION This stable,rapid and sensitive method can be used for the quality control of Mori Cortex.

Aim To explore the role of cotranscriptional activator p300 in regulating the electrical remodeling of atrial myocytes in aging mouse, which resulted in atrial fibrillation. Methods The left atrial appendage tissues of 5 , 13 and 18monthold C57BL/6 mice were collected respectively. Western blot was used to detect the protein expression levels of p300, L type calcium channel (Cavl. 2) and aging related protein p53/p21. Acute enzymatic hydrolysis was used to isolate single atrial myocytes, and the wholecell patchclamp technique was used to detect the Ltype calcium current (I

ObjectiveTo investigate the protective effect of human urine-derived stem cells (USCs) on erectile function and cavernous structure in rats with cavernous nerve injury (CNI).

METHODSSixty adult male SD rats with normal sexual function were randomly divided into four groups of equal number: sham operation, bilateral CNI (BCNI) model control, phosphate buffered saline (PBS), and USC. The BCNI model was established in the latter three groups of rats by clamping the bilateral cavernous nerves. After modeling, the rats in the PBS and USC groups were treated by intracavernous injection of PBS at 200 μl and USCs at 1×106/200 μl PBS respectively for 28 days. Then, the maximum intracavernous pressure (mICP) and the ratio of mICP to mean arterial pressure (mICP/MAP) of the rats were calculated by electrical stimulation of the major pelvic ganglions, the proportion of nNOS- or NF200-positive nerve fibers in the total area of penile dorsal nerves determined by immunohistochemical staining, the levels of endothelial cell marker eNOS, smooth muscle marker α-SMA and collagen I detected by Western blot, and the smooth muscle to collagen ratio and the cell apoptosis rate in the corpus cavernosum measured by Masson staining and TUNEL, respectively.

RESULTSAfter 28 days of treatment, the rats in the USC group, as compared with those in the PBS and BCNI model control groups, showed significant increases in the mICP (［81 ± 9.9］ vs ［31 ± 8.3］ and ［33 ± 4.2］ mmHg, P <0.05), mICP/MAP ratio (0.72 ± 0.05 vs 0.36 ± 0.03 and 0.35 ± 0.04, P <0.05), the proportions of nNOS-positive nerve fibers (［11.31 ± 4.22］% vs ［6.86 ± 3.08］% and ［7.29 ± 4.84］% , P <0.05) and NF200-positive nerve fibers in the total area of penile dorsal nerves (［27.31 ± 3.12］% vs ［17.38 ± 2.87］% and ［19.49 ± 4.92］%, P <0.05), the eNOS/GAPDH ratio (0.52 ± 0.08 vs 0.31 ± 0.06 and 0.33 ± 0.07, P <0.05), and the α-SMA/GAPDH ratio (1.01 ± 0.09 vs 0.36 ± 0.05 and 0.38 ± 0.04, P <0.05), but a remarkable decrease in the collagen I/GAPDH ratio (0.28 ± 0.06 vs 0.68 ± 0.04 and 0.70 ± 0.10, P <0.05). The ratio of smooth muscle to collagen in the corpus cavernosum was significantly higher in the USC than in the PBS and BCNI model control groups (17.91 ± 2.86 vs 7.70 ± 3.12 and 8.21 ± 3.83, P <0.05) while the rate of cell apoptosis markedly lower in the former than in the latter two (3.31 ± 0.83 vs 9.82 ± 0.76, P <0.01; 3.31 ± 0.83 vs 9.75 ± 0.91, P <0.05).

CONCLUSIONSIntracavernous injection of USCs can protect the erectile function of the rat with cavernous nerve injury by protecting the nerves, improving the endothelial function, alleviating fibrosis and inhibiting cell apoptosis in the cavernous tissue.

Actins ; analysis ; Animals ; Arterial Pressure ; Collagen ; analysis ; Disease Models, Animal ; Erectile Dysfunction ; prevention & control ; Male ; Nitric Oxide Synthase Type I ; analysis ; Nitric Oxide Synthase Type III ; analysis ; Penile Erection ; physiology ; Penis ; innervation ; Pudendal Nerve ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Saline Solution ; administration & dosage ; Stem Cell Transplantation ; methods ; Stem Cells ; Urine ; cytology

Objective To investigate the clinical effect of laparoscopic and open radical resection of hilar cholangiocarcinoma (Bismuth-I). Methods From January 2011 to January 2017, 34 patients (10 patients in the laparoscopic group and 24 patients in the open group) underwent radical resection of hilar cholangiocarcinoma. Their clinical data were analyzed retrospectively. Results All these patients underwent radical resection of hilar cholangiocarcinoma of type Bismuth-I successfully. The volume of blood loss was (179.50 ± 98.05) ml and duration of hospital stay was (11.80 ± 2.49) d of laparoscopic group which was lower than (261.25 ± 97.33) ml, (16.25 ± 3.35) d of open group (P < 0.05). The levels of Tbil of laparoscopic group at days after operation 1, 3, 5 d were (102.20 ± 45.49) mmol/L, (83.57 ± 30.66) mmol/L, (45.09 ± 18.41) mmol/L. The levels of Tbil of open group at days after operation 1, 3, 5 d were (148.17 ± 62.78) mmol/L, (121.60 ± 43.35) mmol/L, (80.59 ± 43.89) mmol/L. The difference was statistically significant (P < 0.05). And the laparoscopic group postoperative number of lymph nodes dissected (9.79 ± 3.05), postoperative complications (1 cases), positive margin (0 cases); and open group(9.30 ± 3.06), 3 cases, had no statistically significant differences were compared (P >0.05). Two groups of patients were followed up for 6~18 months. During the follow-up period, there was no recurrence or metastasis in the two groups. Conclusion Laparoscopic Bismuth-I radical resection of hilar bile duct carcinoma in lymph node dissection, postoperative complications, positive margin rate, prognosis and open type Bismuth-I hilar cholangiocarcinoma radical operation of similar effects, and more minimally invasive advantages. Therefore, laparoscopic radical resection for hilar cholangiocarcinoma of type Bismuth-I is safe and feasible.

OBJECTIVETo investigate whether electroacupuncture (EA) can promote cell survival and enhance heart function of mesenchymal stem cells (MSCs) therapy.

METHODSMSCs were isolated from bone marrow and expanded in Minimum Essential Medium Alpha (α-MEM). MI was induced in 72 Sprague-Dawley (S-D) rats by ligation of the left anterior descending coronary artery (LAD) for 30 min and reperfusion. MI rats randomly received injection of 1×10(6) DiI-labeled MSCs alone (n =24, MSC group), or plus electroacupuncture (EA) at Neiguan (PC6, n=24, EA+MSC group), or saline (n =24, saline group). EA treatment was performed for 4 days. Another 24 rats were subjected to chest-open surgery without LAD occlusion and treatment (sham group). Three time points, 4, 14 and 28 days (n =8 for each group) were included in this study. The survival of transplanted MSCs and the protective gene expression were analyzed by reverse transcriptase polymerase chain reaction (RT-PCR) and Western blot at day 4 and 14. Left ventricular remodeling, cardiac function, infarction area, fibrosis and capillary density were analyzed at day 28.

RESULTSEA can enhance MSC survival (2.6-fold up) at day 4. Big capillary density was 53% higher in EA+MSC treated group than MSC alone group. Furthermore, the rats treated by EA reduced the fibrosis and had 36% smaller infarct size comparing to MSC alone. EA also attenuated left ventricular remodeling and enhanced the functional recovery of infarcted hearts at week 4.

CONCLUSIONEA at Neiguan acupoint can promote the stem cell survival and improve ischemic heart function. EA could become a useful approach in stem cell therapy for ischemia heart diseases.

Animals ; Apoptosis ; physiology ; Cell Survival ; Cells, Cultured ; Combined Modality Therapy ; methods ; Electroacupuncture ; Female ; Graft Survival ; physiology ; Heart ; physiopathology ; Mesenchymal Stem Cell Transplantation ; Mesenchymal Stromal Cells ; physiology ; Myocardial Ischemia ; physiopathology ; therapy ; Rats ; Rats, Sprague-Dawley ; Ventricular Remodeling ; physiology

Objective To explore whether the cellular apoptosis susceptibility (CAS) protein could serve as a pathologic marker for HCC diagnosis and the roles of CAS expression in HBV infection associated HCC.Methods The expression of CAS protein in HCC and its paracarcinoma tissues,non-tumor liver cirrhosis and hepatitis tissues were detected by immunohistochemistry.Meanwhile,HBsAg,HBcAg and HBV DNA in HCC tissues with HBV infection were examined by immunohistochemistry and in situ hybridization respectively.Results The expression of CAS protein was significantly higher in HCC than in its paracarcinomas tissues ( P ＜ 0.01 ),a.nd higher in paracarcinomas tissues than in non-tumor liver cirrhosis and hepatitis tissues ( P ＜ 0.01 ).Poorly differentiated tumors immunochemically stained stronger than moderately or well differentiated( P ＜0.01 ).CAS protein expression was significantly higher in HBV-infected HCC tissues than that of in non-HBV infection ( P ＜ 0.01 ).Meanwhile,in HBV-infected HCC tissues,the staining intensity score of CAS protein in HBV DNA positive HCC tissues was significantly higher than HBV DNA negative tissues ( P ＜ 0.05 ).Conclusions Higher expression of CAS protein is found in HCC tissues,and the intensity of CAS protein expression is related closely to tumor differentiation.We suggested that CAS protein might serve as a marker for HCC diagnosis and differentiation estimation,and deduced that CAS might play an important role in the initiation of HBV infection associated HCC through upregulating expression of CAS.

We report here a case of pentastomiasis infection in a 3-year-old girl who had high fever, abdominal pain, abdominal tension and anemia. Ultrasound scanning of the abdomen revealed disseminated hyperechoic nodules in the liver and a small amount of ascites. Abdominal MRI showed marked hepatomegaly with disseminated miliary nodules of high signal intensity throughout the hepatic parenchyma on T2-weighted images; retroperitoneal lymphadenopathy and disseminated miliary nodules on the peritoneum were also noted. Chest CT showed scattered small hyperdense nodules on both sides of the lungs. The laparoscopy demonstrated diffuse white nodules on the liver surface and the peritoneum. After the small intestinal wall and peritoneal biopsy, histological examination revealed parenchymal tubercles containing several larvae of pentastomids and a large amount of inflammatory cell infiltration around them. The pathological diagnosis was parasitic granuloma from pentastomiasis infection.
Abdomen, Acute/*parasitology ; Animals ; Biopsy ; Child, Preschool ; Diagnosis, Differential ; Female ; Humans ; Magnetic Resonance Imaging/methods ; Parasitic Diseases/*diagnosis ; *Pentastomida ; Tomography, X-Ray Computed/methods

Objective To evaluate the effect of health education in controlling the iodine deficiency diserders(IDD) in order to provide reference data for the further prevention and control. Methods Each village of 3 towns in Congjiang County was selected in 2007, where the health education lasting for 10 months had been implemented in the school students of 3-6 grade and the villagers. The school students of 3-6 grade and 30 housewives in the villagers were investigated for their IDD control knowledge, the salt consuming conditions as well as the sales of both rough and fine salt at a salt retail site in each village before and after the health education was implemented. Results The awareness rate of the knowledge of IDD control in the students and housewives was 91.4% (581/636) and 78.3% (282/360), respectively after intervention, which significantly increased (χ2= 532.044, 326.117, both P < 0.01) compared with the rate of 28.2% (184/652) and 11.4% (41/360) before intervention. The proportion of consuming fine salt was 91.8%(146/159) and 95.6%(86/90), significantly inereased(χ2= 236.623, 135.350, both P < 0.01) compared with 6.1%(10/163) and 7.8% (7/90) found before intervention. The selling proportion of fine salt at the salt retail site in the village was 60.0%(900/1500), significantly increased(χ2= 824.176, P < 0.01) compared with 10.0%(150/1500) before intervention. Conclusions Health education and promotion is solid foundation for effectively controlling IDD, through which the students and villagers are actively and voluntarily involved in the program and hence have formed good living and hygiene habits, thus expected effect has been obtained.