The chemical constituents of 95% ethanol extract of Melastoma dodecandrum were isolated and purified by chromatography on silica gel, Sephadex LH-20, and HPLC, to obtain thirteen compounds eventually. On the basis of their physico-chemical properties and spectroscopic data, these compounds were identified as quercetin (1), quercetin-3-O-β-D-glucopyranoside (2), quercetin-3-O-(6"-O-p-coumaroyl) -β-D-glucopyranoside (3), kaempferol (4), kaempferol-3-O-β-D-glucopyranoside (5), kaempferol-3-O- [2",6"-di-O-(E)-coumaroyl]-β-D-glucopyra-noside (6), luteolin (7), luteolin-7-O-(6"-p-coumaroyl) -β-D-glucopyranoside (8), apigenin (9), apigenin-7-(6"-acetyl-glucopyranoside) (10) , naringenin (11), isovitexin (12), and epicatechin-[8,7-e] -4β-(4-hydroxyphenyl)-3,4-dyhydroxyl-2(3H)-pyranone (13). Eight compounds(3,5,6,8-11 and 13) were obtained from M. dodecandrum for the first time.
Apigenin ; analysis ; Chromatography ; methods ; Chromatography, High Pressure Liquid ; Dextrans ; Flavanones ; analysis ; Flavonoids ; analysis ; chemistry ; Glycosides ; analysis ; chemistry ; Kaempferols ; analysis ; Luteolin ; analysis ; Magnoliopsida ; chemistry ; Plants, Medicinal ; chemistry ; Quercetin ; analysis ; Silica Gel

Objective To explore the effects of mesenchymal stem cells ( MSC ) treatment on platelet counts in mice with immune-mediated thrombocytopenia ( ITP) and the possible mechanism .Meth-ods ITP was induced by daily intraperitoneal injection of anti-platelet membrane CD 41 antibody (MWReg30) into BALB/c mice.The mice were then divided into experiment and control groups with 20 mice in each.Each mouse in experimental group was injected with 2×107 mesenchymal stem cells (MSC) through the tail vein .The numbers of blood platelets in mice from two groups were counted on days 5, 7 and 14 after MSC injection .Reverse transcriptase polymerase chain reaction ( RT-PCR) was performed to meas-ure T-bet and GATA-3 gene expression in peripheral blood mononuclear cells ( PBMCs ) at mRNA level on day 14.The levels of IFN-γ, IL-2, IL-4 and IL-10 in serum were detected by ELISA .Results The platelet counts in experimental group were significantly higher than those in control group on days 7 and 14 after MSC injection [(588.0±81.6)×109/L and (623.0±78.9) ×109/L vs.(317.0±90.1) ×109/L and (288.0± 87.8)×109/L ] (P<0.05).On day 14 after MSC injection, the T-bet expression at mRNA level in PBMCs from mice in experimental group was significantly lower than that in control group [(0.04±0.03) vs.(0.27 ±0.05)] (P<0.05), while the GATA-3 expression at mRNA level was higher than those in control group [ (0.14±0.04) vs.(0.07±0.05)] (P<0.05).Compared with control group, the concentrations of Th1 type cytokines such as IFN-γand IL-2 were remarkably down-regulated in experimental group [(3.1±1.7) pg/ml and (3.2±2.1) pg/ml vs.(10.3±4.8) pg/ml and (16.3±5.7) pg/ml](P<0.05), while the con-centrations of Th2 type cytokines such as IL-4 and IL-10 were up-regulated in experimental group [(88.6± 15.2) pg/ml and (38.3±11.8) pg/ml vs.(32.7±5.7) pg/ml and (22.1±3.4) pg/ml ] (P<0.05). Conclusion MSC treatment can effectively increase platelet counts in mice with immune-mediated thrombo-cytopenia, which may be associated with the suppression of Th 1-dominant response mediated by abnormal ex-pression of T-bet and GATA-3.

The effect of magnetic Fe3O4 particles on cellulase in the enzymatic hydrolysis of sunflower seed hull was studied in different adding ways and additive amount. In the process of enzymatic hydrolysis of sunflower seed hull, the variations of cellulase activity, reducing sugar concentration and cellulose conversion were evaluated. After the reaction, the analysis of pH and surface tension of hydrolysate were also used to determine the mechanisms of cellulase by the magnetic effect. The results indicated that after adding magnetic Fe3O4, the cellulase activity, reducing sugar concentration and conversion of cellulose had an increased between the 0.5 g/L and 2.0 g/L cases after 48 h. When the additive amount of magnetic Fe3O4 was 2 g/L, the cellulase activity at 60 h was improved significantly by 25.9%. It was found that the concentration of reducing sugar was increased from 6.950 mg/mL to 8.775 mg/mL with magnetic Fe3O4 1.5 g/L. Simultaneously, compared with the blank, which the conversion of cellulose was 47.932%, the maximum celluloseconversion of samples with adding magnetic Fe3O4 was 60.531%. Besides, the stability of cellulase activity adding in times was better than in one time. After the reaction, the final surface tension of hydrolysate with 1.5 g/L magnetic Fe3O4 was the lowest in comparison with the blank. However, no significant differences were observed in the final pH of the hydrolysate.

OBJECTIVETo utilize multiplane, subcutaneous and subperiosteal, dissection through small incisions in scalp to rejuvenate aging signs of forehead/temple.

METHODSForehead: We make four small incisions in scalp, widely separate tissues between subperiosteum skin and frontal muscle to form galea frontal muscle-periosteum flap, the flap is tightened and sutured with the galea at the posterior border of the incision. This method avoid to excise scalp. Temple: there are two small incisions in the scalp of temple at each side. Superficial temple fascia and orbicularis oculi muscle as well is dissected from deep temporal fascia and skin respectively, then tightened and sutured with the superficial part of deep temporal fascia, excising scalp is not necessary.

RESULTSTwenty patients have received this treatment, the effects are satisfying.

CONCLUSIONSMultiplane dissection through small incisions can remove wrinkles of skin, correct the prolapse of eyebrow and avoid the complications of coronary incision. This approach brings more rapid recovery of patients, it is safe and affective.

Adult ; Female ; Follow-Up Studies ; Forehead ; surgery ; Humans ; Male ; Middle Aged ; Rejuvenation ; Rhytidoplasty ; methods

Animals ; Antibodies, Bacterial ; blood ; Bacterial Proteins ; genetics ; immunology ; Brucella Vaccine ; immunology ; Brucella abortus ; immunology ; Female ; Immunization ; Interferon-gamma ; biosynthesis ; Lymphocyte Activation ; Mice ; Mice, Inbred BALB C ; Periplasmic Binding Proteins ; genetics ; immunology ; Ribosomal Proteins ; genetics ; immunology ; Vaccines, DNA ; immunology

Derris eriocarpa, a traditional Chinese medicine belonging to the family of Leguminosae, is widely distributed mainly over Yunnan, Guangxi and Guizhou of China. Modern pharmacological researches on this herb showed that it had extensive bioactivities, such as promoting urination, removing dampness and cough and reducing inspissated mucus and other biological activities. The extensive studies on the chemical constituents of this plant have resulted in the isolation of triterpenoids, steroids, fatty acid and others, but the flavone compounds haven't reported before. In our further research on the ethyl acetate of this plant, nine flavone compounds were obtained by column chromatography on silica gel, Sephadex LH-20, semi-prep HPLC, polyamide column chromatography and recrystallization for separation and purification. The structures were determined on the basis of extensive spectroscopic analysis, including MS, NMR experiments and comparison with spectroscopic data in the literature, respectively, as diosmetin (1), 3, 3'-di-O-methylquercetin (2), afromosin (3), 6, 3'-dihydroxy-7, 4'-dimethoxyisoflavone (4), odoratin (5), 7, 3'-dihydroxy-8, 4'-dimethoxyisoflavone (6), 6, 4'-dihydroxy-7, 3'-dimethoxyisoflavone (7), 5, 7, 4'-trihydroxy-3, 3', 5'-trimethoxyflavone (8), and alpinumisoflavone (9). All these compounds were isolated from Derris eriocarpa How for the first time. And the in vitro assays showed that compound 2 possessed moderate inhibitory activity against human cancer cells K562 and HEL.
Derris ; chemistry ; Flavonoids ; chemistry ; isolation & purification ; pharmacology ; Humans ; K562 Cells

OBJECTIVETo compare the contents of baicalin in the raw medical material and the different prepared medical materials of Scutellaria baicalensis.

METHODThe contents of baicalin were determined by HPLC. Chromatographic conditions included Hypersil C18 column and the mobile phase consisting of a mixture of methanol-0.04% phosphoric acid (46:54). Baicalin was detected at 280 nm. The standard curve was linear in the range of 0.0280-4.6700 micrograms with correlation coefficient 1.0000. The average recovery of baicalin was 101.22% with RSD = 2.54% (n = 5).

RESULTThe contents of baicalin were 6.80% in raw material, 6.00% and 6.73% in the different prepared medical materials of S. baicalensis respectively.

CONCLUSIONThe two different kinds of preparing methods can be used to the raw material of S. baicalensis.

Chromatography, High Pressure Liquid ; Flavonoids ; analysis ; Hot Temperature ; Plants, Medicinal ; chemistry ; Scutellaria baicalensis ; chemistry ; Technology, Pharmaceutical

OBJECTIVETo evaluate the effect of high intensity focused ultrasound (HIFU) for liver cancer.

METHODSHIFU treatment was performed in 44 liver cancer patients under general anesthesia and ultrasound positioning. Before and after HIFU treatment, the clinical symptoms, liver functional tests, AFP and MRI were evaluated.

RESULTSAfter HIFU treatment, the remission rate of clinical symptoms was 87.5% (28/32), with the scanty ascites in 3 patients disappeared. ALT (79.73 +/- 12.31 U/L) and AST (103.47 +/- 24.55 U/L) before HIFU were reduced to normal in 84.6% (22/26) and 73.5% (25/34) patients. AFP in 64.3% (18/28) patients decreased > or = 50% of the original value. After HIFU, MRI showed coagulative necrosis and blood supply reduction or disappearance of tumor in the target region.

CONCLUSIONHIFU treatment pocesses good effect on liver cancer, which will offer a considerable weight in noninvasive local treatment of hepatic tumor.

Adult ; Aged ; Female ; Humans ; Liver Neoplasms ; therapy ; Male ; Middle Aged ; Ultrasonic Therapy ; Ultrasound, High-Intensity Focused, Transrectal

OBJECTIVETo study the alkaloids of Macleaya cordata and their anti-tumor activities.

METHODAlcohol and liquid-liquid extraction were used methods were used to extract the alkaloids constituents, and silica gel, reverse-phase octadecylsilyl (ODS), sephadex LH-20 chromatographic methods and HPLC were applied to isolate and purify compounds. MS, NMR spectroscopic methods were used to determine their structures. Furthermore, the cytotoxicity of these chemical components for MCF-7 and SF-268 cell lines was measured by MTT method.

RESULTTwelve alkaloids were isolated from the fruits of M. cordata, and their structures were identified as: maclekarpine E (1), 6-acetonyldihyrochelerythrine (2), cavidilinine (3), 6-acetonyldihyrosanguinnarine (4), O-methylzanthoxyline (5), 6-methoxy-dihydrosanguinarine (6), spallidamine (7), 6-hydroxyldihydrochelerythrine (8), arnotianamida (9), dihydrosanguinarine (10), protopine (11), and cryptopine (12).

CONCLUSIONCompounds 1, 3, 7-9 were isolated from M. cordata for the first time, and compound 5 is a new natural product. The results of cytotoxic assay indicated that compound 6 showed strong cytotoxicity against MCF-7 and SF-268 cell lines with IC50 values of 0.61 μmol · L(-1) and 0.54 μmol · L(-1), respectively.

Alkaloids ; isolation & purification ; pharmacology ; Antineoplastic Agents, Phytogenic ; isolation & purification ; Cell Line, Tumor ; Humans ; Papaveraceae ; chemistry

China ; Encephalomyelitis, Acute Disseminated ; complications ; therapy ; virology ; Female ; Humans ; Influenza A Virus, H1N1 Subtype ; isolation & purification ; Influenza, Human ; complications ; therapy ; virology ; Middle Aged ; Pneumonia, Viral ; complications ; therapy ; virology ; Treatment Outcome