The Experts below are selected from a list of 297 Experts worldwide ranked by ideXlab platform
Mingqiang Rong - One of the best experts on this subject based on the ideXlab platform.
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Dermatophagoides farinae allergens diversity identification by proteomics
Molecular & Cellular Proteomics, 2013Co-Authors: Su An, Lingling Chen, Chengbo Long, Xuemei Xu, Xingre Lu, Mingqiang RongAbstract:The most important indoor allergens for humans are house dust mites (HDM). Fourteen Dermatophagoides farinae allergens (Der f 1–3, 6, 7, 10, 11, 13–18, and 22) are reported although more than 30 allergens have been estimated in D. farinae. Seventeen allergens belonging to 12 different groups were identified by a procedure of proteomics combined with two-dimensional immunoblotting from D. farina extracts. Their sequences were determined by Edman degradation, mass spectrometry analysis, and cDNA cloning. Their allergenicities were assayed by enzyme-linked immunosorbent assay inhibition tests, immunoblots, basophil activation test, and skin prick tests. Eight of them are the first report as D. farinae allergens. The procedure of using a proteomic approach combined with a purely discovery approach using sera of patients with broad IgE reactivity profiles to mite allergens was an effective method to investigate a more complete repertoire of D. farinae allergens. The identification of eight new D. farinae allergens will be helpful for HDM allergy diagnosis and therapy, especially for patients without response for HDM major allergens. In addition, the current work significantly extendedthe repertoire of D. farinae allergens.
Yiping Xu - One of the best experts on this subject based on the ideXlab platform.
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clinical evaluation for sublingual immunotherapy of allergic asthma and atopic rhinitis with Dermatophagoides farinae drops
Chinese journal of pediatrics, 2007Co-Authors: Quan Lu, Hongliang Gu, Yanping Chen, Yuan Zhang, Min Lu, Yaoqin Qian, Lan Li, Yiping XuAbstract:OBJECTIVE: To evaluate the safety and efficacy of sublingual immunotherapy with 'Dermatophagoides farinae Drops' in D. farinae allergic asthma and/or rhinitis patients. METHODS: A 25-week double-blind, placebo-controlled, multi-centered trail was conducted in 278 children (aged 4 - 18 yr) with mite-induced asthma and/or rhinitis. Patients were randomly assigned to receive sublingual immunotherapy (SLIT) with 'Dermatophagoides farinae Drops' (n = 139) or placebo (n = 139) for 25 weeks and the dosage and administration strictly followed the manufacturer's instructions. At the beginning of the 2nd, 3rd, 4th, 6th, 10th, 14th, 18th, 22nd week of the treatment, the patients were asked to accept follow-up visit, during the clinical trial all patients and parents were asked to keep a daily record of their asthma symptom scores, rescue medicine use, rhinitis symptom scores, morning and evening peak expiratory flow. Asthma symptom scores, reduction in use of rescue medicine, rhinitis symptom scores, lung function tests, skin sensitivity to mite, mite-specific immunoglobulin (Ig) E and IgG4, and quality of life and adverse effect were assessed during the study. RESULT: (1) Of the 278 children, 27 dropped out before the study completion. (2) After 25 weeks of treatment, the median variability of PEFR was -1.38 for SLIT group and -0.90 for the placebo (P < 0.05). (3) Besides, the mean variability of medicine score of asthma was -0.08 for SLIT group and 0.52 for the plcebo (P < 0.05). (4) The median variability of rhinitis symptom score was -1.96 for SLIT group and -1.03 for the placebo (P < 0.01). (5) The rescue medicine usage of SLIT reduced but did not show significant differences between SLIT and placebo. (6) After 25 weeks treatment, the increase of D. farinae specific IgE antibody of two groups were similar, while specific IgG4 increased significantly in SLIT compared to the patients in control one (P < 0.01); (7) No severe adverse events happened in the trial and the most-likely adverse events were mild asthma and local rash. CONCLUSION: Dermatophagoides farinae Drops is safe and effective in treating allergic asthma and atopic rhinitis.
Glen R Needham - One of the best experts on this subject based on the ideXlab platform.
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clustering reduces water loss by adult american house dust mites Dermatophagoides farinae acari pyroglyphidae
Experimental and Applied Acarology, 1998Co-Authors: Emmett V Glass, Jay A Yoder, Glen R NeedhamAbstract:We investigated male clustering behaviour in large bulk cultures of the American house dust mite, Dermatophagoides farinae. Aggregation in the colony was restricted to males only. The water loss rates for individual males in isolation and as a group of six were determined. Males in a group of six retained water nearly twice as effectively (they had lower rates of net water loss) than individuals. Clustering is thus an adaptive behaviour to help reduce water loss. Because the clustering response was observed exclusively by males, this behaviour may serve an additional purpose that involves a pheromone system.
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short communication clustering reduces water loss by adult american house dust mites Dermatophagoides farinae acari pyroglyphidae
Experimental and Applied Acarology, 1998Co-Authors: Emmett V Glass, Jay A Yoder, Glen R NeedhamAbstract:We investigated male clustering behaviour in large bulk cultures of the American house dust mite, Dermatophagoides farinae. Aggregation in the colony was restricted to males only. The water loss rates for individual males in isolation and as a group of six were determined. Males in a group of six retained water nearly twice as effectively (they had lower rates of net water loss) than individuals. Clustering is thus an adaptive behaviour to help reduce water loss. Because the clustering response was observed exclusively by males, this behaviour may serve an additional purpose that involves a pheromone system.
Anchalee Tungtrongchitr - One of the best experts on this subject based on the ideXlab platform.
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proteome allergenome and novel allergens of house dust mite Dermatophagoides farinae
Journal of Proteome Research, 2016Co-Authors: Jintarat Choopong, Onrapak Reamtong, Nitat Sookrung, Watee Seesuay, Nitaya Indrawattana, Yuwaporn Sakolvaree, Wanpen Chaicumpa, Anchalee TungtrongchitrAbstract:Dermatophagoides farinae mite is a predominant source of indoor allergens causing high incidence of allergy worldwide. People with different genetic background respond differently to the mite components, and thus the component-resolved diagnosis (CRD) is preferred to the conventional allergy test based on crude mite extract. In this study, proteome and culprit components in the D. farinae whole body extract that sensitized the allergic patients were studied by using SDS-PAGE (1DE) and 2DE-IgE immunoblotting followed by LC–MS/MS and database search for protein identification. From the 1DE, the mite extract revealed 105 proteins that could be classified into seven functionally different groups: allergens, structural components, enzymes, enzyme inhibitor, receptor proteins, transporters, and binding/regulatory/cell signaling proteins. From the 2DE, the mite extract produced 94 spots; 63 were bound by IgE in sera of 20 D. farinae allergic patients. One more protein that was not revealed by the 2DE and protein...
Su An - One of the best experts on this subject based on the ideXlab platform.
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Dermatophagoides farinae allergens diversity identification by proteomics
Molecular & Cellular Proteomics, 2013Co-Authors: Su An, Lingling Chen, Chengbo Long, Xuemei Xu, Xingre Lu, Mingqiang RongAbstract:The most important indoor allergens for humans are house dust mites (HDM). Fourteen Dermatophagoides farinae allergens (Der f 1–3, 6, 7, 10, 11, 13–18, and 22) are reported although more than 30 allergens have been estimated in D. farinae. Seventeen allergens belonging to 12 different groups were identified by a procedure of proteomics combined with two-dimensional immunoblotting from D. farina extracts. Their sequences were determined by Edman degradation, mass spectrometry analysis, and cDNA cloning. Their allergenicities were assayed by enzyme-linked immunosorbent assay inhibition tests, immunoblots, basophil activation test, and skin prick tests. Eight of them are the first report as D. farinae allergens. The procedure of using a proteomic approach combined with a purely discovery approach using sera of patients with broad IgE reactivity profiles to mite allergens was an effective method to investigate a more complete repertoire of D. farinae allergens. The identification of eight new D. farinae allergens will be helpful for HDM allergy diagnosis and therapy, especially for patients without response for HDM major allergens. In addition, the current work significantly extendedthe repertoire of D. farinae allergens.