نتایج جستجو برای: b germanica

تعداد نتایج: 900179  

Journal: :European journal of biochemistry 1993
J Martinez-Gonzalez C Buesa M D Piulachs X Belles F G Hegardt

In insects, 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMG-CoA) synthesizes mevalonate for the production of nonsterol isoprenoids, which are essential for growth and differentiation. To understand the regulation and developmental role of HMG-CoA reductase, we have cloned a full-length HMG-CoA reductase cDNA from the cockroach Blattella germanica. This cDNA clone was isolated using as a p...

2011
Francisca X. M. Rego Pedro Giavina-Bianchi Jorge Kalil L. Karla Arruda Myrthes Toledo-Barros

RESULTS: Fifty patients (68.5%) had positive skin test responses. There were positive responses to D. pteronyssinus (52.0%), B. tropicalis (53.4%), T. putrescentiae (15.0%), E. maynei (12.3%), L. destructor (8.2%), B. germanica (20.5%), P. americana (21.9%), Felis catus (10.9%), C. herbarium (2.7%), A. alternata (4.1%), and P. notatun (1.3%). The exposure to mite and cockroach allergens was sim...

Journal: :European journal of biochemistry 1993
J Martínez-González C Buesa M D Piulachs X Bellés F G Hegardt

Insects do not synthesize cholesterol; the 3-hydroxy-3-methylglutaryl-coenzyme-A (HMG-CoA) produced by HMG-CoA synthase is transformed to mevalonate by HMG-CoA reductase for the production of non-sterol isoprenoids, which are essential for growth and differentiation. To understand the regulation and developmental role of HMG-CoA synthase, we have cloned a 1658 bp cDNA that encompasses the entir...

Journal: :Environmental entomology 2015
Yvonne K Matos Coby Schal

The Asian cockroach, Blattella asahinai Mizukubo, first introduced to Florida in 1986, has been spreading throughout the southeastern United States. Populations can reach extremely high densities and cause damage to crops as well as become a nuisance in residential settings. Because the German cockroach, Blattella germanica L., is its closest extant relative, we characterized the B. asahinai ma...

Journal: :The Indian journal of medical research 2005
R Srinivasan P Jambulingam S Subramanian M Kalyanasundaram

BACKGROUND & OBJECTIVE In cockroach control, bait formulations are extensively used. Fipronil is one of the broad spectrum insecticides from phenyl pyrazole family available in bait formulation. The compound has been tested under field conditions. However, information on its effectiveness on different surfaces and at various density levels is not known. Therefore, the efficacy of a new formulat...

ابوالحسنی, ماندانا, شایقی, منصوره , لدنی, حسین ,

In this study we employed two methods for gauging the sensitivity of B. germanica strains to organophosphorus insecticides: an in-vivo bioassay that used linear regression analysis (with mortality on a probit scale and logarithm of concentration) and an in-vitro enzyme assay.In the bioassay method, B. germanica nymphs of stage 1 (2-3 days old) were exposed to patches of paper impregnated with 2...

Journal: :Clinical and diagnostic laboratory immunology 2004
Kyoung Yong Jeong Heeyu Hwang Jongweon Lee In-Yong Lee Dong Soo Kim Chein-Soo Hong Han-Il Ree Tai-Soon Yong

Household arthropods are one of the most common causes of allergic diseases. Four species of cockroaches are found to reside in Korean homes, but published work deals almost exclusively with the German and American cockroaches. This study was undertaken to investigate the cross-reactive allergenic components of the dusky brown cockroach, Periplaneta fuliginosa. Enzyme-linked immunosorbent assay...

Journal: :The Journal of biological chemistry 1995
L K Arruda L D Vailes M L Hayden D C Benjamin M D Chapman

An allergen cloned from a Blattella germanica (German cockroach) cDNA library, encoded a 182-amino acid protein of 20,904 Da. This protein, designated B. germanica allergen 4 (Bla g 4), was expressed as a glutathione S-transferase fusion protein in Escherichia coli and purified by affinity chromatography and high-performance liquid chromatography. The prevalence of serum IgE antibody to recombi...

Journal: :Jornal de pediatria 2006
Maria Isabella L Lopes Paulo J Miranda Emanuel Sarinho

OBJECTIVE To compare the prevalence of allergy to cockroaches (Blattella germanica and Periplaneta americana) in asthmatic and non-asthmatic children and to determine the degree of agreement between the skin prick test and serum specific IgE levels, as well as to establish the relationship between cockroach allergy and total IgE levels. METHODS A case-control study involving 76 asthmatic and ...

2011
Alexandre S. Cristino Erica D. Tanaka Mercedes Rubio Maria-Dolors Piulachs Xavier Belles

BACKGROUND microRNAs (miRNAs) have been reported as key regulators at post-transcriptional level in eukaryotic cells. In insects, most of the studies have focused in holometabolans while only recently two hemimetabolans (Locusta migratoria and Acyrthosiphon pisum) have had their miRNAs identified. Therefore, the study of the miRNAs of the evolutionarily basal hemimetabolan Blattella germanica m...

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