检索结果-南通市图书馆

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Anthrax:an update

Asian Pacific Journal of Tropical Biomedicine 2011年第6期1卷 496-501页

作者： Kamal sm Rashid AKM M Bakar MA Aliad MA Department of Medicine Khulna Medical College Department of Paediatrics Khulna Medical College Department of Gastroenterology khulna Medical College

Anthrax is a zoonotic disease caused by Bacillus *** is potentially fatal and highly contagious *** arc the natural *** acquire the disease incidentally by contact with infected animal or animal *** the 18th century an epidemic destroyed approximately half of the sheep in *** 1900 human inhalational anthrax occured sporadically in the United *** 1979 an outbreak of human anthrax occured in Sverdlovsk of Soviet *** continued to represent a world wide *** incidence of the disease has decreased in developed countries as a result of vaccination and improved industrial *** anthrax clinically presents in three forms,***,gastrointestinal and *** 95%of human anthrax is cutaneous and 5%is *** anthrax is very rare(less than 1%).Inhalational form is used as a biological warefare agent. Penicillin,ciprofloxacin(and other quinolones),doxicyclin,ampicillin,***, clarithromycin,vancomycin,chloramphenicol,rifampicin are effective antimicrobials. Antimicrobial therapy for 60 days is *** anthrax vaccine is available. Administration of anti-protective antigen(PA) antibody in combination with ciprofloxacin produced 90%-100%*** combination of CPG-adjuvanted anthrax vaccine adsorbed(AVA) plus dalbavancin significantly improved survival.

关键词： Anthrax Bacillus anthracis Zoonotic disease Contagious disease Cutaneous anthrax Inhalational anthrax Gastrointestinal anthrax Human anthrax

Antifungal effects of Ocimum Kilimandscharicum oil on Aspergillus flavus Infecting Maize after Harvest

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Studies in Fungi 2021年第1期6卷 288-298页

作者： Kaguchia sm Birgen JK Lang’at-Thoruwa C Akwa TE Department of Plant Sciences Kenyatta UniversityNairobiKenya Department of Chemistry Kenyatta UniversityNairobiKenya Department of Biochemistry Microbiology and Biotechnology Kenyatta UniversityNairobiKenya

Maize is consumed throughout the year in *** facilities of Maize vary with the economic status of the *** resource producers are likely to have unsuitable storage facilities whose conditions may predispose stored maize to post-harvest fungal *** most frequently encountered fungus in stored maize is Aspergillus flavus which produces aflatoxins that causes teratogenic,carcinogenic,mutagenic and hepatotoxic *** are used to control post-harvest fungi,but these have health *** an alternative safe method is the use of plant-based products which have anti-fungal *** study was therefore designed to evaluate growth inhibitory effects of Ocimum kilimandscharicum oil on Aspergillus *** leaves were collected from the plants growing naturally in Ruiru in Kiambu County,and the leaves were air dried in a shed,and oil was extracted through hydro-distillation.A total of 80 kg of threshed stored maize collected from randomly selected farms in Murang’a County were used to isolate Aspergillus *** growth experiments were done on PDA amended with different concentrations of the ***(p<0.001)inhibition of fungal radial growth occurred at oil concentration of 3.33 ul/***,concentrations above 6.67ul/ml totally inhibited the growth of the ***,significantly(p<0.001)large zones of inhibition were observed in the highest concentration of 400 ul/*** the results,it can be concluded that *** oil acts against Aspergillus flavus and is a potential source for developing an antifungal *** is recommended that the efficacy of this oil needs to be tested on other post-harvest fungi.

关键词： Aflatoxins Kenya Mycelia inhibition post harvest fungi storage conditions

Expression of cyclin-dependent kinase inhibitor genes induces apoptosis in human hepatoma cell line

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Science Bulletin 1997年第23期42卷 2000-2005页

作者： Ren, CC Tian, PK Qu, sm Teng, QS Jiang, HQ Zheng, YH Ren, SJ Gu, JR Shanghai Canc Inst Natl Lab Oncogenes & Related Genes Shanghai 200032 Peoples R China

APOPTOSIS is an active, inherently programmed cell death, which has typical morphologicaland biochemical characteristics. Cell death during embryonic development, shaping of the Tand B lymphocyte and tissue dystrophy related to endocrine is designated a physiological apop-tosis by which cell numbers can be effectively controlled. As a process opposite to cell division,there is a balance between apoptosis and cell proliferation. A tumor will develop once the bal-ance is disturbed and the cell division is more rapid than the cell death. Also, apoptosis is un-der the control of multiple molecular components, while cell division is under the control of thecell cycle engine. The precise control of cell proliferation and differentiation is essential for

关键词： apoptosis cyclin-dependent kinase inhibitor hepatoma.

Density inhomogeneity of upper mantle in Central Asian Region

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Chinese Science Bulletin 1997年第12期42卷 1000-1005页

作者： Fang, sm Feng, R Li, CF Sun, GX Tian, CZ Wang, ZL Wang, Y Research Center of Exploration Geophysics State Seismological Bureau Zhcngzhou China Institute of Geophysics State Seismological Bureau Beijing China Institute of Geodesy and Geophysics Chinese Academy of Sciences Wuhan China

SINCE International Lithosphere Program was implenented in the early 1980s,the studies of geoscience have focused on the field from oceans to *** the 1990s and a futurespan of considerable length the research into continental dynamics will be one of the most ac-tive research *** are inhomogeneities in the medium of upper mantle laterally andvertically known from various geophysical ***,density being the

关键词： compensating density of upper mantle geodynamics. Central Asian Region.

Current status of radiology in China

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2000年第2期6卷 193-197页

作者： Zeng sm Zhou KR Zhang ZY Peng WJ Yang FH Lin J Yang J Han XY Shanghai Med Univ Zhongshan Hosp Dept Radiol Shanghai 200032 Peoples R China

INTRODUCTIONRadiology has been greatly advanced in China sinceits founding in 1949 and has been developed fasterand further more since China adopted the policy ofsocioeconomic reform in *** plays anincreasingly important role in the medical healthcare and treatment in the country and has reachedthe world’s advanced level in certain *** nowbriefly review the history of China’s radiology so asto give a clear picture of its development.

关键词： radiology/history radiology/leducation radiology/trends China

Production of chitosan from endolichenic fungi isolated from mangrove environment and its antagonistic activity

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Biomedicine 2012年第2期2卷 140-143页

作者： Logesh AR Thillaimaharani KA Sharmila K Kalaiselvam M Raffi sm Centre of Advanced Study in Marine Biology Faculty of Marine SciencesAnnamalai University

Objective:To screen the chitosan producing ability of endolichenic fungi and its antibacterial ***:Lichen collected from mangroves was screened for endophytes and the chitosan producing ability of endolichenic fungi by submerged fermentation was also *** activity was carried out against different ***:Totally4 different groups of fungi were isolated from the lichen Roccella *** the four genera,Aspergillus niger(***)is potential to produce chitosan(1.3 g/L)on the twelfth day of *** plays an important role in the pnjductivity of chitosan and the yield was maximum at 10%(1.93 g/L).Antibacterial activity revealed that Vibrio cholerae was sensitive to chitosan followed by Escherichia ***:In conclusion,our findings suggest that *** is a potential candidate to produce more chitosan than the other strains and glucose plays an important role in the production of chitosan which proves to have a good antibacterial activity.

关键词： Mangrove lichens Roccella montagnei Endolichenic fungi Chitosan

Aqueous extracts of microalgae exhibit antioxidant and anticancer activities

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Biomedicine 2012年第8期2卷 608-615页

作者： Sanaa MM Shanab Soha sm Mostafa Emad A Shalaby Ghada I Mahmoud Botany Department Faculty of ScienceCairo University Microbiology Department SoilsWater and Environment Research InstituteAgrientural Research Center Biochemistry Department Faculty of AgricultureCairo University

Objective:To investigate the antioxidant and anticancer activities of aqueous extracts of nine microalgal ***:Variable percentages of major secondary metabolites(total phenolic content,terpenoids and alkaloids) as well as phycobiliprotein pigments(phycocyanin, allophycocyanin and phycoerythrin) in the aqueous algal extracts were *** activity of the algal extracts was performed using 2,2 diphenyl-1-picrylhydrazyl(DPPH) test and 2,2'azino-bis(ethylbenzthiazoline-6-sulfonic acid(ABTS.) radical cation *** efficiency of the algal water extracts was investigated against Ehrlich Ascites Carcinoma cell(EACC) and Human hepatocellular cancer cell line(HepG2).Results:Antioxidant activity of the algal extracts was performed using DPPH test and ABTS.^+ radical cation assays which revealed 30.1-72.4%and 32.0-75.9%*** efficiency of the algal water extracts was investigated against Ehdich Ascites Carcinoma Cell(EACC) and Human Hepatocellular cancer cell line(HepG2) with an activity ranged 87.25%and 89.4%*** the promising cyanobacteria species;Nostoc muscorum and Oscillatoria *** nitrogen stress conditions(increasing and decreasing nitrate content of the normal BG11 medium,1.5 g/L),increased nitrate concentration(3,6 and 9 g/L) led to a remarkable increase in phycobilin pigments followed by an increase in both antioxidant and anticancer activities in both cyanobacterial *** the decreased nitrate concentration(0.75,0.37 and 0.0 g/L) induced an obvious decrease in phycobilin pigments with complete absence of allophycocyanin in case of Oscillatoria ***:Nitrogen starvation(0.00 g/L nitrate) induced an increase and comparable antioxidant and anticancer activities to those cultured in the highest nitrate content.

关键词： Microalgae Antioxidant Anticancer Nitrogen starvation Cyanobacteria

Ghrelin inhibits visceral afferent activation of catecholamine neurons in the solitary tract nucleus

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Ghrelin inhibits visceral afferent activation of catecholami...

Domestication-related changes in seed dispersal and pigmentation:Visual selection and functional trait?

中国神经科学学会第九届全国学术会议暨第五次会员代表大会

作者： sm Appleyard Program in Neuroscience Department of Veterinary Comparative AnatomyWashington State University School of Life Science Northeast Normal University

＜正＞Brainstem A2/C2 catecholamine（CA） neurons in the solitary tract nucleus（NTS） are thought to play an important role in the control of food intake and other homeostatic *** have previously demonstrated that these neurons,which send extensive projections to brain regions involved in the regulation of appetite,are strongly and directly activated by solitary tract（ST） visceral ***,a potent orexigenic peptide released from the stomach,is proposed to act in part through modulating NTS CA neurons but the underlying cellular mechanisms are ***,we identified CA neurons using transgenic mice that express enhanced green fluorescent protein driven by the tyrosine hydroxylase promoter（TH-EGFP）.We then determined how ghrelin modulates TH-EGFP neurons using patch-clamp techniques in a horizontal brain slice *** inhibited the frequency of spontaneous glutamate inputs（spontaneous EPSCs） onto TH-EGFP neurons,including cholecystokinin-sensitive neurons,an effect blocked by the GHSR1 antagonist,*** resulted in a decrease in the basal firing rate of NTS TH-EGFP neurons,an effect blocked by the glutamate antagonist *** also dose-dependently inhibited the amplitude of ST afferent-evoked EPSCs（ST-EPSCs） in TH-EGFP NTS neurons,decreasing the success rate for ST-evoked action *** addition,ghrelin decreased the frequency of mini-EPSCs suggesting its actions are presynaptic to reduce glutamate ***,inhibition by ghrelin of the ST-EPSCs was significantly increased by an 18 h *** results demonstrate a potential mechanism by which ghrelin inhibits NTS TH neurons through a pathway whose responsiveness is increased during fasting.

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Molecular Plant 2023年第8期16卷 1240-1242页

作者： Petr smykal Travis Parker Department of Botany Palacky University in Olomouc77900 OlomoucCzech Republic Department of Plant Sciences University of CaliforniaDavisDavisCA 95616USA

The development of agriculture is one of the most transformative changes in the history of *** the most common changes occurring during plant domestication are reductions in seed dispersal and changes in *** there are archaeological records of these processes,the advancement of genomics offers a tool to achieve greater insight into the process of converting wild plants into crops(smýkal et al.,2018).This involved and resulted in a set of specific phenotypic changes referred to collectively as the domestication ***,less obvious domestication-related modifications have also been identified,including changes in plant *** processes are often *** example,among visible changes,selection for visual appearance such as pigmentation is governed by modulation of specific metabolic *** genomic tools,the improvement of analytical methods provides the opportunity to reveal metabolomic changes involved in plant domestication.

关键词： Visual collective crops