Diversity-oriented synthesis of marine sponge derived hyrtioreticulins and their anti-inflammatory activities / 中国天然药物

Diversity-oriented synthesis is aimed to increase the chemical diversity of target natural products for extensive biological activity evaluation. Indole ring is an important functional group in a large number of drugs and other biologically active agents, and indole-containing natural products have been frequently isolated from marine sources in recent years. In this paper, a series of indole-containing marine natural hyrtioreticulin derivatives, including 19 new ones, were designed, synthesized through a key Pictet-Spengler reaction, and evaluated for their inflammation related activity. Compound 13b displayed the most promising activity by inhibiting TNF-α cytokine release with an inhibitory rate of 92% at a concentration of 20 μmol·L-1. A preliminary structure-activity relationship analysis was also discussed. This research may throw light on the discovery of marine indole alkaloid derived anti-inflammatory drug leads.

New lobane-type diterpenoids from the Xisha soft coral Sinularia polydactyla / 中国天然药物

Lobane-type diterpenoids are not frequently discovered from marine soft corals. In this paper, three new lobane type diterpenes, 13-methoxyloba-8,10,15(16),17(18)-tetraene (1), 8,10,13(15)Z,16E-lobatetraene (2) and 19-hydroxy-lobatetraene (3), and a new natural compound, 17,18-epoxyloba-16-acetoxy-8,10,13(15)-trien (4), co-occurring with a known related diterpenoid, 18-methoxyloba-8,10,13(15),16(17)-tetraene (5), were isolated from the South China Sea soft coral Sinularia polydactyla. The structures of new compounds were determined by extensive spectroscopic analysis and by comparison with those reported in the literature. In bioassay, all the isolates were inactive on antibacterial, PTP1B inhibitory, and immunological activities. This study increased the chemical diversity of marine diterpenoids.

A new briarane-type diterpenoid from the South China Sea gorgonian Junceella fragilis / 药学学报

The chemical constituents of gorgonian Junceella fragilis Ridley, collected from Ximao Island, the South China Sea, were investigated. A new briarane-type diterpenoid, named fragilide Y (1), together with five known compounds (2–6), namely fragilide D (2), cholesterol (3), ergosterol peroxide (4), 2'-deoxythymidine (5) and cis-thyminenol (6), were isolated from the acetone extract of J. fragilis. The structure of the new compound 1 was elucidated by extensive spectroscopic analysis, while the known compounds were identified by comparison with the reported data. In bioassay, none of these compounds displayed obvious anti-inflammatory and cytotoxic effects.

Ionic Liquid Ultrasonic-assisted Solid Phase Extraction of Four Kinds of Hosenkosides from Seeds of Impatiens balsamina L / 分析化学

A green, rapid and efficient method was developed for the extraction of 4 kinds of hosenkosides from the seeds of Impatiens balsamina L. The hosenkosides were extracted by ionic liquid, and then enriched by solid phase extraction. The effects of the kinds and volume of ionic liquid, pH value, ultrasonic time, solid phase extractant and eluent on the extraction fields were investigated and optimized. Under the optimum conditions, the recoveries of 4 kinds of hosenkosides were between 92. 1％ and 108. 2％ , the correlation coefficients were 0. 9945-0. 9975, and the detection limits were 1. 8-4. 5 μg / mL. The RSD values were all less than 3. 9％ . The experimental results showed that this method was fast, efficient, environmental protection. This study provided a reference for the extraction and enrichment of trace components in Chinese medicinal herbs.

Extraction of Eight Ginsenosides from Leaves of Panax quinquefolium L. By Ultrasoinc Fountain-based Ultrasonic-assisted Nebulization Extraction Coupled with Solid Phase Extraction / 分析化学

A new ultrasonic-assisted extraction (UANE) method coupled with solid phase extraction (SPE) using ultrasonic fountain was established for the extraction of eight common ginsenosides from leaves of Panax quinquefolium L. The extraction system has been designed and several experimental parameters,including the type and volume of extraction solvent,pH value and salt concentration of extraction solvent,type and volume of elution solvent,and amount of C18, extraction time were examined and optimized. Under the optimal conditions,the recoveries of ginsenosides were in the range of 96. 3% -110. 6%, the relative standard deviations (RSDs) were in the range of 2.8%-4.3%,indicating that the method has a good performance for the extraction of these ginsenosides. Compared with traditional UANE-SPE method, the modified method simplified the extraction device,shortened the extraction time and improved the extraction efficiency.

Management after expanded flap ulceration during auricular reconstruction / 中华整形外科杂志

<p><b>OBJECTIVE</b>To investigate the feasibility of Brent I methods for total auricular reconstruction when expanded flap ulceration happened.</p><p><b>METHODS</b>The expanded flaps in the retroauricular region ulcerated during total auricular reconstruction in 8 patients with microtia. Then the expanders were removed and autologous rib cartilage frameworks were implanted. Brent I techniques for the total auricular reconstruction were employed.</p><p><b>RESULTS</b>All the wounds in 8 patients with microtia healed primarily. The expanded flaps survived completely. The reconstructed ears had good shape and appearance with little hair. The size, shape and position of reconstructed ears were coordinated with the face.</p><p><b>CONCLUSIONS</b>Brent I technique is an alternative method for total auricular reconstruction when the expanded flap ulceration occurs during total ear reconstruction.</p>

Sonographically guided intralesional sclerotherapy for venous malformation / 中华外科杂志

<p><b>OBJECTIVE</b>To investigate the safety and efficacy of sonographically guided percutaneous intralesional sclerotherapy for peripheral venous malformations.</p><p><b>METHODS</b>From March 2004 to October 2007, 32 patients with venous malformations of soft tissues were treated with sonographically guided intralesional sclerotherapy. The malformed venous space was identified intraoperatively by duplex scanning, the gauge 7 needle was inserted into this venous space under real-time ultrasound visualization, and sclerosants were infused in the space gently. Absolute alcohol and bleomycin acted as sclerosants here, combined the two (for type I malformation) or bleomycin only (for type II malformation). The treatment could be repeated if the lesion was not cured in 3 weeks. All patients were followed up for 6 months to 2 years.</p><p><b>RESULTS</b>Of the group, each patient received 1 - 6 times of the therapy (mean, 3 times). Twenty-seven patients achieved a complete response, and 5 achieved partial response. No major complications occurred.</p><p><b>CONCLUSIONS</b>Sonographically guided percutaneous intralesional sclerotherapy for peripheral venous malformation is a simple, effective, safe therapy with minimal invasion, lower morbidity rate, and can be repeated.</p>

Study on variation of actinoside C in leaves of Actinidia kolomikta with different growth periods by RP-HPLC / 中国中药杂志

<p><b>OBJECTIVE</b>To determine actinoside C in the leaves of Actinidia kolomikta with different growth periods.</p><p><b>METHOD</b>The separation was performed at 25 degrees C on ZORBAX Extend C18 column (4.6 mm x 250 mm, 5 microm), using amixture of methanol and water (51:49) as a mobile phase. The flow rate was 1.2 mL x min(-1), and the wavelength for measurement was 267 nm.</p><p><b>RESULT</b>The results showed that the contents of actinoside C in the leaves of A. kolomikta were variety in different growth periods. Actinoside C could reach its highest content in the middle ten days of June, then the content would decrease in the middle ten days of July slightly, it could reach their lowest content in the middle ten days of August.</p><p><b>CONCLUSION</b>The optimal collective date for A. kolomikta are in the middle ten days of June.</p>

Clinic application of compound flap pedicled with arterial arch of palpebral margin / 中华整形外科杂志

<p><b>OBJECTIVE</b>To study the clinic application of compound flap pedicled with arterial arch of palpebral margin in repairing severe full defect of eyelid.</p><p><b>METHODS</b>According to eyelid structure and the defect size, the two compound flaps were designed beside the defect based on the arterial arch of the palpebral margin. If the defective area was too large, the lateral compound flap may be extended to lower or upper eyelid 0.5 cm away from the outer canthus, then cut and propelled the two compound flaps to repair the full eyelid defect.</p><p><b>RESULTS</b>20 cases had been cured with this method since 1998. In this cases, 4 cases were basal cell carcinoma of eyelid, 2 cases were squamous carcinoma, 3 angiomas, 6 chromatophore nexuses, 3 traumatic defects, 2 congenital defects. The largest length of eyelid full defect was 1.7 cm and the smallest was 0.8 cm. 6 cases were upper eyelid defect and 14 cases were lower eyelid defect. All the compound flaps survived completely without any complications. All cases obtained satisfactory results functionally and esthetically.</p><p><b>CONCLUSIONS</b>Repairing full eyelid defect with the compound eyelid flap is the same kind tissue repairing. It can not only provide enough tissues to primary repair large full defect of the upper or lower eyelid to restore normal anatomical structure and appearance of the eyelid, but also is easy to be operated without severe secondary deformities. The arterial arch of the palpebral margin is constant and the blood supply of the compound flap is reliable. It is an ideal method of repairing the eyelid defect.</p>

Determination of 20 (S)-ginsengnoside Rh2 in the alkali-hydrolysis product of saponins from leaves of Panax qinquefolium by RP-HPLC / 中国中药杂志

<p><b>OBJECTIVE</b>To determine 20(S)-ginsengnoside Rh2 in the hydrolysis product of saponins from leaves of Panax qinquefolium.</p><p><b>METHOD</b>The separation was performed on ZORBAX EXEND C18 column (4.6 mm x 250 mm, 5 microm), eluted with methanol and water (85:15) as mobile phase with the rate of 1.2 mL x min(-1) at 25 degrees C, the wavelength for measurement was 203 nm.</p><p><b>RESULT</b>The calibration curve was linear in the range of 0.5-25 microg for 20(S)-ginsengnoside Rh2(r = 0.9999, n = 7). The average recovery was 99.7% (RSD= 1.0%).</p><p><b>CONCLUSION</b>This method is simple, accurate, reliable and reproducible. The result shows that the transform ratio of 20(S)-ginsengnoside Rh2 is high by this hydrolysis method.</p>

Experience of vaginal reconstruction by using a pudendal-thigh island flaps / 中华整形外科杂志

<p><b>OBJECTIVE</b>To evaluate a pudendal-thigh island flap for vaginal reconstruction.</p><p><b>METHODS</b>Forty-seven patients with congenital absence of vagina were undergoing the treatment. Based on the pedicle including the posterior labial neurovascular bundle, a pudendal-thigh island flap was designed and raised in the groin crease just lateral to the labia majora under the deep fascia. It was then transferred to the tunnel between the urethra and the anus for reconstruction of the vagina.</p><p><b>RESULTS</b>From May of 1993 to July of 2001, 47 patients were successfully treated for the vaginal reconstruction with the flap. The results were satisfactory without complications.</p><p><b>CONCLUSION</b>The above mentioned technique could be a safe and effect method for vaginal reconstruction with the advantages of reliable blood supply, good sensation and few complications. The areaes with the bilateral pudendal-thigh could be large enongh for the vaginal reconstruction without problem of the donor closure.</p>