1,450 research outputs found

    Bank lending and monetary policy: the effects of structural shift in interest rates

    Get PDF
    This paper provides evidence to show that the interest rate regime adopted by the monetary authority plays an important role in determining the effectiveness of the transmission mechanism of monetary policy via bank lending channel using Malaysian data. As part of the strategy to deal with the recent financial crisis, the Malaysian government introduced capital control measures which subsequently led to a structural shift in interest rates. Before the shift, interest rates were relatively high. The contractionary monetary policy achieved desirable results through the bank lending channel. However, responses of bank lending to interest rate changes were limited after the structural shift which characterises a period of low interest rate regime, rendering the bank lending channel ineffective.bounds test

    Identification and analysis of in planta expressed genes of Magnaporthe oryzae

    Get PDF
    <p>Abstract</p> <p>Background</p> <p>Infection of plants by pathogens and the subsequent disease development involves substantial changes in the biochemistry and physiology of both partners. Analysis of genes that are expressed during these interactions represents a powerful strategy to obtain insights into the molecular events underlying these changes. We have employed expressed sequence tag (EST) analysis to identify rice genes involved in defense responses against infection by the blast fungus <it>Magnaporthe oryzae </it>and fungal genes involved in infectious growth within the host during a compatible interaction.</p> <p>Results</p> <p>A cDNA library was constructed with RNA from rice leaves (<it>Oryza sativa </it>cv. Hwacheong) infected with <it>M. oryzae </it>strain KJ201. To enrich for fungal genes, subtraction library using PCR-based suppression subtractive hybridization was constructed with RNA from infected rice leaves as a tester and that from uninfected rice leaves as the driver. A total of 4,148 clones from two libraries were sequenced to generate 2,302 non-redundant ESTs. Of these, 712 and 1,562 ESTs could be identified to encode fungal and rice genes, respectively. To predict gene function, Gene Ontology (GO) analysis was applied, with 31% and 32% of rice and fungal ESTs being assigned to GO terms, respectively. One hundred uniESTs were found to be specific to fungal infection EST. More than 80 full-length fungal cDNA sequences were used to validate <it>ab initio</it> annotated gene model of <it>M. oryzae</it> genome sequence.</p> <p>Conclusion</p> <p>This study shows the power of ESTs to refine genome annotation and functional characterization. Results of this work have advanced our understanding of the molecular mechanisms underpinning fungal-plant interactions and formed the basis for new hypothesis.</p

    Trichosanthes kirilowii

    Get PDF
    Trichosanthes kirilowii tuber is a traditional medicine which exhibits various medicinal effects including antidiabetic and anticancer activities in several cancer cells. Recently, it was reported that Cucurbitacin D (CuD) isolated from Trichosanthes kirilowii also induces apoptosis in several cancer cells. Constitutive signal transducer and activator of transcription 3 (STAT3), which is an oncogenic transcription factor, is often observed in many human malignant tumor, including breast cancer. In the present study, we tested whether Trichosanthes kirilowii ethanol extract (TKE) or CuD suppresses cell growth and induces apoptosis through inhibition of STAT3 activity in breast cancer cells. We found that both TKE and CuD suppressed proliferation and induced apoptosis and G2/M cell cycle arrest in MDA-MB-231 breast cancer cells by inhibiting STAT3 phosphorylation. In addition, both TKE and CuD inhibited nuclear translocation and transcriptional activity of STAT3. Taken together, our results indicate that TKE and its derived compound, CuD, could be potent therapeutic agents for breast cancer, blocking tumor cell proliferation and inducing apoptosis through suppression of STAT3 activity

    Effect of biochars pyrolyzed in N2 and CO2, and feedstock on microbial community in metal(loid)s contaminated soils

    Get PDF
    Little is known about the effects of applying amendments on soil for immobilizing metal(loid)s on the soil microbial community. Alterations in the microbial community were examined after incubation of treated contaminated soils. One soil was contaminated with Pb and As, a second soil with Cd and Zn. Red pepper stalk (RPS) and biochars produced from RPS in either N2 atmosphere (RPSN) or CO2 atmosphere (RPSC) were applied at a rate of 2.5% to the two soils and incubated for 30 days. Bacterial communities of control and treated soils were characterized by sequencing 16S rRNA genes using the Illumina MiSeq sequencing. In both soils, bacterial richness increased in the amended soils, though somewhat differently between the treatments. Evenness values decreased significantly, and the final overall diversities were reduced. The neutralization of pH, reduced available concentrations of Pb or Cd, and supplementation of available carbon and surface area could be possible factors affecting the community changes. Biochar amendments caused the soil bacterial communities to become more similar than those in the not amended soils. The bacterial community structures at the phylum and genus levels showed that amendment addition might restore the normal bacterial community of soils, and cause soil bacterial communities in contaminated soils to normalize and stabilize

    Interaction of testisin with maspin and its impact on invasion and cell death resistance of cervical cancer cells

    Get PDF
    AbstractPrevious studies have shown that testisin promotes malignant transformation in cancer cells. To define the mechanism of testisin-induced carcinogenesis, we performed yeast two-hybrid analysis and identified maspin, a tumor suppressor protein, as a testisin-interacting molecule. The direct interaction and cytoplasmic co-localization of testisin with maspin was confirmed by immunoprecipitation and confocal analysis, respectively. In cervical cancer cells, maspin modulated cell death and invasion; however, these effects were inhibited by testisin in parallel experiments. Of interest, the doxorubicin resistance was dramatically reduced by testisin knockdown (P=0.016). Moreover, testisin was found to be over-expressed in cervical cancer samples as compared to matched normal cervical tissues. Thus, we postulate that testisin may promote carcinogenesis by inhibiting tumor suppressor activity of maspin.Structured summaryMINT-7712215, MINT-7712176: Testisin (uniprotkb:Q9Y6M0) binds (MI:0407) to Maspin (uniprotkb:P36952) by pull down (MI:0096)MINT-7712188: Testisin (uniprotkb:Q9Y6M0) and Maspin (uniprotkb:P36952) colocalize (MI:0403) by fluorescence microscopy (MI:0416)MINT-7712115: Testisin (uniprotkb:Q9Y6M0) physically interacts (MI:0915) with Maspin (uniprotkb:P36952) by two-hybrid (MI:0018)MINT-7712162, MINT-7712128: Maspin (uniprotkb:P36952) physically interacts (MI:0915) with Testisin (uniprotkb:Q9Y6M0) by anti bait co-immunoprecipitation (MI:0006)MINT-7712147: Testisin (uniprotkb:Q9Y6M0) physically interacts (MI:0915) with Maspin (uniprotkb:P36952) by anti tag co-immunoprecipitation (MI:0007

    How Much Do Older Adults Living Alone in Rural South Korea Know About Dementia?

    Get PDF
    Objectives This study aimed to examine the level of dementia knowledge of older Korean adults living alone in rural areas and to identify related factors. Methods A cross-sectional descriptive design was applied. The participants were 231 older adults living alone who were recruited from 12 of the 13 primary health care posts in the rural area of Chuncheon. Participants’ level of dementia knowledge was assessed using the Dementia Knowledge Scale. Data were analyzed using descriptive statistics, and the t-test, analysis of variance, chi-square test, and Mann-Whitney test were applied. Results Participants’ mean age was 77.3±5.4 years, and women comprised 79.7% of the sample. Over half of the participants (61.9%) had no formal education, and all the participants were enrolled in Medical Aid. The participants’ average percentage of correct answers was 61.6%. The highest rate (94.4%) was for the item “Dementia can change one’s personal character.” The item with the lowest proportion of correct answers was “Dementia is not treatable” (23.4%). Dementia knowledge was significantly associated with age, education, health coverage, source of living expenses, and dementia risk. Conclusions Dementia knowledge among Korean rural older adults living alone was relatively low. Participants’ misconceptions about symptoms and treatment could hinder them from seeking early treatment. The results of this study suggest the need for active outreach and health care delivery for rural older adults living alone in South Korea
    corecore