| larvicidal effects of various euro-asiatic plants against culex quinquefasciatus say larvae (diptera: culicidae). | extracts from 56 species of plants in the euro-asiatic region were tested for larvicidal activity against the fourth larval instar of the mosquito culex quinquefasciatus say (diptera: culicidae). all plant extracts showed larvicidal activity after 24 h of exposure to the plant extracts in a maximal dose of 500 ppm. the extracts of the plants otanthus maritimus and ammi visnaga displayed the highest larvicidal effect (ld(50) 7 and 9 ppm, respectively) followed by acer pseudoplatanus, humulus japo ... | 2008 | 18058128 |
| [change in skin reactivity to common allergens in allergic patients over a 30-year period. association with aeroallergen load]. | five-year changes in the percentage of positive intradermal test to allergens in patients with bronchial asthma (ba) and allergic rhinitis (ar) over a period of 30 years from 1969 to 1998 were analyzed, with consideration of their association with the yearly changes in the levels of airborne pollens and molds over 30 years. allergens used throughout the period were house dust, pollens from various plants (japanese cedar, pine, oak, japanese alder, zelkova, orchard grass, ragweed, mugwort and jap ... | 2000 | 11193459 |
| spider mite allergy in apple-cultivating farmers: european red mite (panonychus ulmi) and two-spotted spider mite (tetranychus urticae) may be important allergens in the development of work-related asthma and rhinitis symptoms. | recent investigations have suggested that the citrus red mite (panonychus citri) is the most important allergen affecting citrus-cultivating farmers with asthma, allergic rhinitis, or both. | 1999 | 10589014 |
| identification and characterization of the major allergen of the humulus japonicus pollen. | pollen of humulus japonicus has been known as one of the important causes of pollinosis in korea and china. to date, the major allergen of h. japonicus has not been determined. | 1999 | 10457112 |
| hlmyb3, a putative regulatory factor in hop (humulus lupulus l.), shows diverse biological effects in heterologous transgenotes. | a hop-specific cdna library from glandular tissue-enriched hop cones was screened for myb transcription factors. cdna encoding for r2r3 myb, designated hlmyb3, was cloned and characterized. according to the amino acid (aa) sequence, hlmyb3 shows the highest homology to ghmyb5 from cotton and is unrelated to the previously characterized hlmyb1 from the hop. southern blot analyses indicated that hlmyb3 is a unique gene, which was detected in various humulus lupulus cultivars, but not in humulus ja ... | 2007 | 17708645 |
| bee pollen-induced anaphylaxis: a case report and literature review. | bee pollen is pollen granules packed by honey bees and is widely consumed as natural healthy supplements. bee pollen-induced anaphylaxis has rarely been reported, and its allergenic components have never been studied. a 40-year-old male came to the emergency room with generalized urticaria, facial edema, dyspnea, nausea, vomiting, abdominal pain, and diarrhea 1 hour after ingesting one tablespoon of bee pollen. oxygen saturation was 91%. his symptoms resolved after injection of epinephrine, chlo ... | 2015 | 25749764 |
| humulus japonicus extract exhibits antioxidative and anti-aging effects via modulation of the ampk-sirt1 pathway. | the perennial herb, humulus japonicus, has been previously described as possessing potential antituberculosis and anti-inflammatory properties. in the present study, the anti-aging activity of ethanol extracts from the leaves of h. japonicus (hje) was evaluated in yeast and human fibroblast cells. in addition, the antioxidant activity of hje was analyzed using free radical scavenging assays. furthermore, the mechanism underlying the hypothesized hje-associated extension of lifespan was investiga ... | 2015 | 26136899 |
| allergenicity of recombinant profilins from japanese hop, humulus japonicus. | pollen from japanese hop, humulusjaponicus, is a major cause of pollinosis in korea. profilin (15 kda) from humulus scandens has been associated with strong allergenicity in allergic chinese patients. profilin has also been detected in pollen extract from korean japanese hop by proteomic analysis and immunoglobulin (ig) e immunoblotting. however, the allergenicity of allergens isolated from japanese hop has not been investigated in korean individuals. this study was undertaken to produce recombi ... | 2013 | 24260980 |
| the revised edition of korean calendar for allergenic pollens. | the old calendar of pollens did not reflect current pollen distribution and concentrations that can be influenced by changes of weather and environment of each region in south korea. a new pollen calendar of allergenic pollens was made based on the data on pollen concentrations obtained in eight regions nationwide between 1997 and 2009. the distribution of pollen was assessed every day at 8 areas (seoul, guri, busan, daegu, jeonju, kwangju, kangneung, and jeju) for 12 years between july 1, 1997 ... | 2012 | 22211164 |
| sensitization to aeroallergens in korean children: a population-based study in 2010. | we performed this study to assess the prevalence of sensitization to aeroallergens and to analyze the difference between prevalence rates according to children's ages and residential areas. in this nationwide cross-sectional study, first grade students of 45 elementary schools and 40 middle schools were randomly selected, and skin prick tests were performed for 18 inhalant allergens between october and november 2010. of 7,829 analyzed subjects, 3,753 (47.9%) were sensitized to at least one aeroa ... | 2011 | 21935271 |
| genetic and pathogenic relatedness of pseudoperonospora cubensis and p. humuli. | the most economically important plant pathogens in the genus pseudoperonospora (family peronosporaceae) are pseudoperonospora cubensis and p. humuli, causal agents of downy mildew on cucurbits and hop, respectively. recently, p. humuli was reduced to a taxonomic synonym of p. cubensis based on internal transcribed spacer (its) sequence data and morphological characteristics. nomenclature has many practical implications for pathogen identification and regulatory considerations; therefore, further ... | 2011 | 21405990 |
| two new phenolic constituents of humulus japonicus and their cytotoxicity test in vitro. | two new phenolic constituents (4 and 6), together with four known constituents, methyl ferulate (1), eugenyl-beta-d-glucopyranoside (2), apigenin-7-o-beta-d-glucopyranoside (3), and (e)-resveratrol-3-o-beta-d-glucopyranoside (5) were isolated from the meoh extract of the aerial part sof humulus japonicus. the structures of the new compounds were determined by spectroscopic methods to be divarin-3-o-beta-glucopyranoside (4), and lariciresinol-9-o-beta-xylopyranoside (6). compounds 1 and 3 exhibit ... | 2007 | 18087817 |
| a highly polymorphic str locus in cannabis sativa. | we report on the first short tandem repeat (str) locus to be isolated from the plant cannabis sativa. the str locus, isolated by a hybrid-capture enrichment procedure, was found to contain a simple sequence repeat motif of 6 bp. this 6 bp repeat motif showed no variation in repeat length but with minor variations in repeat unit sequences. the data show the locus to be highly polymorphic with the number of repeat units ranging from 3 to 40 in 108 screened samples. the observed heterozygosity was ... | 2003 | 12505471 |
| responses of wild plant species to polycyclic aromatic hydrocarbons in soil. | responses of plants to polycyclic aromatic hydrocarbons (pahs) contamination were determined with fifty-five korean wild plants. responsiveness of species was evaluated based on germination and shoot weight and shoot length of plants grown in soil spiked with four pahs (pyrene, fluorene, phenanthrene and fluoranthene). seeds of test plants were germinated with mixtures of pahs of 0, 10, 30, 100, 300 mg kg(-1) spiked in soil. seed germination of test plants changed when subjected to pahs. as comp ... | 2009 | 19724837 |
| native plants (p. amurense and h. japonicus) extracts act as antioxidants to support developmental competence of bovine blastocysts. | phellodendron amurense (p. amurense) and humulus japonicus (h. japonicus) are closely involved in anti-oxidative response and increasing antioxidant enzymes activities. however, the effects of their extracts on development of preimplantation bovine embryos have not yet been investigated. therefore, we investigated the effects of p. amurense and h. japonicus extract on developmental competence and quality of preimplantation bovine embryos. | 2017 | 28231693 |
| standardization of weed pollen extracts, japanese hop and mugwort, in korea. | japanese hop (humulus spp.) and mugwort (artemisia spp.) are notable causes of autumn pollinosis in east asia. however, japanese hop and mugwort pollen extracts, which are widely used for the diagnosis, have not been standardized. this study was performed to standardize japanese hop and mugwort pollen extracts. | 2016 | 26847293 |
| a nationwide survey of inhalant allergens sensitization and levels of indoor major allergens in korea. | the higher prevalence of respiratory allergic disease may be due to increased exposure to inhalation allergens. we conducted a survey of allergic diseases in autumn and winter with detection of major indoor allergens in major cities in korea. | 2014 | 24843797 |
| sensitization rates of airborne pollen and mold in children. | aeroallergens are important causative factors of allergic diseases. previous studies on aeroallergen sensitization rates investigated patients groups that had visited pediatric allergy clinics. in contrast, we investigated sensitization rates in a general population group of elementary school to teenage students in incheon, jeju, and ulsan. | 2012 | 23049589 |
| evidence of hop japanese pollinosis in korea: ige sensitization and identification of allergenic components. | hop japanese (hop j) pollens are abundant in the air of korea during the autumn season. their significance as a source of allergic sensitization is still unclear. | 1997 | 9338540 |