Garcinia plants are one of the rich sources of natural xanthones and benzophenones which have attracted a great deal of attention from the scientists in the fields of chemistry and pharmacology. Recently, many structurally unique constituents with various bioactivities, especially anti-tumor activity, have been isolated from Garcinia plants. This concise review focused on the anti-cancer activity natural products isolated from Chinese Garcinia plants, and the research finding by authors and collaborators over the past several years were cited.
Antineoplastic Agents, Phytogenic ; chemistry ; isolation & purification ; pharmacology ; Benzophenones ; chemistry ; isolation & purification ; pharmacology ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Drugs, Chinese Herbal ; chemistry ; isolation & purification ; pharmacology ; Garcinia ; chemistry ; classification ; Humans ; Inhibitory Concentration 50 ; Molecular Structure ; Plants, Medicinal ; chemistry ; classification ; Structure-Activity Relationship ; Terpenes ; chemistry ; isolation & purification ; pharmacology ; Xanthones ; chemistry ; isolation & purification ; pharmacology

Objective To investigate the preliminary results and complications of a tapered proximal femur modular stem in total hip arthroplasty (THA).Methods From October 2010 to December 2011,tapered proximal femur modular stems were used for THA in 50 patients (56 hips).There were 14males and 36 females,at a mean age of 61 years (range,25-82 years).Forty-four patients had unilateral THA and six bilateral THA.Hip osteoarthritis secondary to developmental dysplasia of the hip occurred in 15 patients,femoral neck fractures in 12,avascular necrosis of the femoral head in 10,primary hip osteoarthritis in nine,rheumatoid hip arthritis in two,malunion of femoral neck fracture in one,and femoral head fracture combined with posterior dislocation of the hip in one.The adopted femoral component was a tapered proximal femur modular stem.Femoral head-acetabulum interface composed metal-polyethylene in 34 hips,ceramics-polyethylene in 12 hips,and ceramics-ceramics in 10 hips.There were 48 hips with standard femoral head (28 mm) and eight hips with non-standard femoral head (＞28 mm).Results Mean period of follow-up was 11 months (range,6-19 months) and two patients (two hips) were lost to follow-up.Harris hip score improved from 36 points (range,4-71 points) preoperatively to 89 points (range,55-98 points) at the final follow-up.There was one patient with mild pain in the thigh,one moderate pain,but none severe or critically severe pain at the final follow-up.At the final follow-up,no migration or loosening of the implanted prostheses occurred; periprosthetic bone ingrowth fixation on the femoral side was achieved in 53 hips and fibrous stable fixation in one hip ; apart from one hip of ＜ 2 mm prosthetic subsidence,the remained revealed no subsidence of the prostheses.Intraoperative complications included acetabulum perforation in one hip and periprosthetic femoral fracture in one hip.Conclusion The short-term results are satisfactory,but the potential risk of fretting/corrosion and even breakage at the modular stem junction remains.

Non-O1/O139 group of Vibrio cholerae can cause human acute diarrhea disease,while compared with the O1 and O139 groups;it often ignore the risk of the disease for human being.Therefore,we analyzed the molecular characteristics of 31 V.cholerae isolated from Yunnan Province.We used the agar disc diffusion method (K-B) to carry out the antibiotic sensitivity test;polymerase chain reaction (PCR) amplification for the detection of virulence gene;at the same time,all of strains were performed for pulse field gel electrophoresis (PFGE) and multilocus sequence typing (MLST).The drug sensitivity test showed that 67.74％ strains were resistant to rifampin,29.03％ resistant to nalidixic acid and cotrimoxazole,all of the isolates were sensitive to gentamicin and ciprofloxacin;PCR results showed that all strains had the ompW gene,87.10％ strains had hly gene,25.81％ strains had rstREl tor,16.13％ strains had rstRClassical and tcpAEl tor,while CT rfbO1 and rfbO139 gene were negative;PFGE results showed that 31 strains had a trend of discrete height,the same PFGE identity pattern was not nearly found;for the analysis of MLST,we found the one new alleles of gyrB,four new alleles of mdh gene,six new alleles of metE gene,two new alleles of pntA,three new alleles of purM and four new alleles of pyrC gene.After permutation and combination,we found 17 new ST types for V.cholerae(ST273-ST289).Non-O1/O139 group V.cholerae showed a high degree of diversity,while the non-O1/O139 group of V.cholerae in Yunnan Province has a certain geographical features,which enriched the existing molecular typing system of V.cholerae.

Aim To express hepatitis C virus glycoprotein E (gE) deleting carboxy-terminal 31 amino acids, and detect anti-E antibody in HCV patients using expressed gE. Methods E gene derived from HCV H strain was inserted into baculovirus transfer vector containing a polyhedrin promotor. The recombinant plasmid was cotransfected into insect cell sf9 with a viral expression vector. The expression of gE was analyzed with Western blot, and the cells were used for dectecting antibodies against E1 and E2 in 35 hepatitis C patients by indirect immunofluorescence. Results A series of proteins with different relative molecular masses(Mr) could be detected by Western blot. Results from indirect immunofluorescence staining showed and only 4 patients were anti-E antibody positive gE was located in cytoplasm. Conclusion HCV gE is expressed successfully in insect cells, the study lay the foundation for further developing HCV vaccine.

Objective: To investigate the trends in cerebrovascular disease mortality among residents in Hangzhou City from 2006 to 2020, so as to provide insights into the development of cerebrovascular disease control strategy. Methods: The cerebrovascular disease mortality data were collected from residents in Hangzhou City through household registered death cards recorded in county- and city-level hospitals, township-level health centers and community health service centers in Hangzhou City and standardized by the national population census data in China in 2010. The changes in the crude and standardized mortality of cerebrovascular diseases were estimated using annual percent change (APC) in Hangzhou City from 2006 to 2020. Results: A total of 109 891 deaths were reported due to cerebrovascular diseases among residents in Hangzhou City from 2006 to 2020, accounting for 17.72% of all deaths in Hangzhou City during the 15-year period, and the crude and standardized mortality rates were 105.83/105 and 65.15/105, which both appeared a tendency towards a decline (crude mortality: APC=-0.80%, t=-3.832, P=0.002; standardized mortality: APC=-4.69%, t=-24.084, P<0.001). The crude mortality of hemorrhagic stroke showed a tendency towards a decline among residents in Hangzhou City from 2006 to 2020 (APC=-7.97%, t=-30.704, P<0.001), and the crude mortality of both ischemic stroke (APC=5.76%, t=6.106, P<0.001) and sequelae of cerebrovascular disease (APC=13.20%, t=18.103, P<0.001) appeared a tendency towards a rise. The crude mortality of cerebrovascular diseases was significantly higher in men than in women (110.15/105 vs. 101.51/105; χ2=183.078, P<0.001), which both appeared a tendency towards a decline among residents in Hangzhou City from 2006 to 2020 (men: APC=-0.90%, t=-4.669, P<0.001; women: APC=-0.70%, t=-2.658, P=0.020). The crude mortality of cerebrovascular diseases was 101.95/105 and appeared a tendency towards a decline among urban residents in Hangzhou City from 2006 to 2020 (APC=-1.19%, t=-3.655, P=0.003), and was 112.46/105 and showed no remarkable changes among rural residents in Hangzhou City from 2006 to 2020 (t=-0.719, P=0.485). In addition, the crude mortality of cerebrovascular diseases appeared a tendency towards a rise with age among residents in Hangzhou City from 2006 to 2020 (χ2trend=502 711.682, P<0.001), and the crude mortality of cerebrovascular diseases appeared a tendency towards a decline among residents at ages of 35 years and above in Hangzhou City from 2006 to 2020 (P<0.05). Conclusions The cerebrovascular disease mortality appeared a tendency towards a decline among residents in Hangzhou City from 2006 to 2020, and a high mortality rate of cerebrovascular diseases was seen among rural residents, men and the elderly.

In this paper, we expatiate the advance of Tricholoma matsutake including distributing, environment, pure culture, domesticating cultivation and artificial forcing breeding in the area of Changbai Mountain of China.

Objective To express and purify the epitope peptide of human melanin-concentrating hormone receptor 1, and to evaluate its performance in the detection of autoantibodies in vitiligo patients. Methods The target gene encoding the epitope peptide of human melanin-concentrating hormone receptor 1 was synthesized, cloned to prokaryotic expression vector pGEX-4T-2 which was then transferred to E. coli BL21. The protein expression was induced by isopropy-β-D-thiogalactoside (IPTG) and identified with sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and Western blot. Blocking ELISA was carried out with membrane proteins extracted from melanocytes as the blocking antigen. The antigenicity of the peptide was detected in sera from 100 patients with progressive vitiligo and 30 healthy human controls. Results The recombinant expression vector was successfully constructed, and the target protein was successfully expressed in E.coli, which was evidenced by SDS-PAGE and Western blot. With the glutathione S-transferase (GST) purification kit, the purity of the recombinant protein reached 100% when the sampling weight was less than 0.625 μg.The binding of the target protein with serum IgG antibodies from vitiligo patients could be blocked by natural membrane antigen of melanocytes. Of the 100 sera from patients with progressive vitiligo, 36 were reactive with the target protein. Conclusions The epitope peptide of human melanin-concentrating hormone receptor 1 has been successfully expressed and purified. The purified protein can bind with serum IgG antibodies from vitiligo patients, and may be applied to the detection of autoantibodies against human melanin-concentrating hormone receptor 1.

Objective To investigate the effect of nuclear translocation of E2p45 related factor 2 (Nrf2)on the biological activity of melanocytes.Methods Plasmid vectors containing wild-type nrf2 gene (pcDNA-nrf2) and nls-deleted nrf2 gene (pcDNA-nrf2△nls) were constructed.B10BR normal murine melanocytes were classified into three groups,i.e.,untransfected group,wild-type nrf2 group transfected with pcDNA-nrf2,and mutated nrf2 group transfected with pcDNA-nrf2△nls.Each of the above groups were further divided into three subgroups:control subgroup receiving no treatment,hydrogen peroxide (H2O2) subgroup treated with H2O2 of 200 μmol/L for 24 hours,and combined subgroup pretreated with tert-butyl hydroquinone (TBHQ) followed by treatment with H2O2 of 200 μmol/L for 24 hours.Subsequently,methyl thiazolyl tetrazolium (MTT) assay was performed to evaluate the proliferative activity of cells,dopa oxidation assay to determine tyrosinase activity,Transwell assay to estimate cell migration ability,Western blot to quantify the expressions of Nrf2 and his tag fusion protein.Results TBHQ significantly enhanced the nuclear expression of Nrf2 in B10BR cells transfected with pcDNA-nrf2 or pcDNA-nrf2△nls (both P ＜ 0.01).No significant difference was observed in tyrosinase activity between untreated wild-type nrf2 group,mutated nrf2 group,and untransfected group (P ＞ 0.05).There was a statistical decrease in tyrosinase activity in the two H2O2-treated transfected groups compared with the untreated transfected groups (both P ＜ 0.05),and the decrease was reversed by TBHQ pretreatment in the wildtype nrf2 group (P ＜ 0.05),but not in the mutated nrf2 group (P ＞ 0.05).Further more,the proliferative activity of B10BR cells experienced no obvious changes in the wild-type nrf2 group (P ＞ 0.05),but was significantly reduced in the untransfected group (P ＜ 0.05) and mutated nrf2 group (P ＜ 0.01) after the H2O2 treatment compared with the corresponding untreated groups.TBHQ could protect the pcDNA-nrf2-transfected B10BR cells,but not pcDNA-nrf2△nls-transfected B10BR cells,from H2O2-induced oxidative damage.Transwell assay showed no significant difference in migration ability among these nine groups (P ＞ 0.05).Conclusions Abnormal nuclear translocation of Nrf2 could affect antioxidant activity of,proliferative activity of and tyrosinase activity in melanocytes.TBHQ may enhance the tyrosinase activity in,proliferative activity and antioxidant activity of melanocytes via activating the nuclear expression of wild type Nrf2.

Notopterygium incisum is the important medicinal materials of the Tibetan-Qiang medical system in China, also one of the rare and endangered medicinal materials in the Plateau areas in the meantime. Taking the planting of in Sichuan province as an example, research on the N. incisum in Sichuan utilize remote sensing and GIS techniques, bind growth environment factor, including height factor, average annual precipitation, average annual temperature, forest information, were chosen according to habitat conditions. And combine field measurement to verify. The results indicate that N. incisum resources in Sichuan province were mainly distributed in the alpine valley and the northwest of the plateau, which suitability distribution areas of 4145 km2 approximately and accounting for 2% of the total area. Suitability areas accounting for more than 2% of the respective total area in Heishui county, Lixian county, Xiaojin county, Kangding county, ect. According to the field investigation and the related document information record, drawn that the suitability distribution based on RS and GIS were corresponded with the actual distribution areas of N. incisum resources. It's feasible to divide the suitability distribution area of N. incisum using RS and GIS, which will provide a scientific basis for a comprehensive investigation of the distribution as well as its rational exploitation and protection.
Apiaceae ; China ; Conservation of Natural Resources ; Geographic Information Systems ; Telemetry

To analyze influenza pathogen spectrum in Yunnan province during 2009-2014 years, and analyze HA and NA genes of influenza A H1N1. Analysis was made on the monitoring date of influenza cases in Yunnan province in recent 6 years, 23 strains of influenza virus of HA and NA gene was sequenced and analyzed by MEGA 5 software to construct phylogenetic tree. 4 times of influenza AH1N1 epidemic peak were monitored from 2009-2014 years in Yunnan Province, as the nucleic acid detection results of influenza A H1N1 accounted for 28.8% of the total. The sequencing result showed that HA and NA gene were divided into 3 groups, one was detected with H275Y mutation strains. Influenza A H1N1 is one of the important subtypes in Yunnan province and their genes have divided into three branches during the period of 2009-2014 years, the vast majority of influenza a H1N1 are still sensitive to neuraminidase inhibitors.
China ; epidemiology ; Hemagglutinin Glycoproteins, Influenza Virus ; genetics ; metabolism ; Humans ; Influenza A Virus, H1N1 Subtype ; classification ; enzymology ; genetics ; isolation & purification ; Influenza, Human ; epidemiology ; virology ; Molecular Sequence Data ; Mutation ; Neuraminidase ; genetics ; metabolism ; Phylogeny ; Viral Proteins ; genetics ; metabolism