Search Results
Results 401 - 450 of 817
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Lehrer Samuel B - - 2004
OBJECTIVE: To review allergen risk evaluation for genetically modified foods and our ability to predict protein allergenicity, methods that are being used to develop foods with reduced allergenic activity, and clinical aspects relative to assessing potentially allergic patients. DATA SOURCES: Information was identified using the MEDLINE database for governmental, international, ...
Gendel Steven M - - 2004
Bioinformatics can play an important role in developing improved technology for the detection and characterization of food allergens. However, the full realization of this potential will depend on the development of allergen-specific databases as well as improved methods for data mining within these databases. Examples of existing allergen databases and ...
Schmitt David A - - 2004
Allergies to peanuts are becoming an increasingly important health problem as a result of the persistence and severity of the reaction in allergic individuals. Because no treatment currently is available, avoidance is the only option for peanut-allergic individuals. Avoidance of an abundant and often disguised food such as peanuts, however, ...
Goodwin Philip R - - 2004
The levels (1-2%) and increasing severity of allergic responses to food in the adult population are well documented, as is the phenomenon of even higher (3-8%) and apparently increasing incidence in children, albeit that susceptibility decreases with age. Problematic foods include peanut, milk, eggs, tree nuts, and sesame, but the ...
Rejeb Samuel Ben - - 2004
An overview is presented of the activities of Health Canada and the Canadian Food Inspection Agency (CFIA) in the area of food allergens. Since the 1990s, changes were made in the Food and Drug Regulations in order to better protect allergic consumers by imposing labeling requirements to clearly identify sources ...
Poms Roland E - - 2004
A review is presented of studies of different processing techniques and their effect on the allergenicity and antigenicity of certain allergenic foods. An overview of investigated technologies is given with regard to their impact on the protein structure and their potential application in the production of hypoallergenic foods. The use ...
Bublin Merima - - 2004
BACKGROUND: Kiwifruits have become a major elicitor of plant food allergy. Until recently, the only species of kiwifruit grown commercially was the common green-fleshed Actinidia deliciosa cv Hayward. In 1999, the yellow-fleshed cultivar Actinidia chinensis cv Hort16A was introduced into the international market. OBJECTIVE: We compared the allergen compositions of ...
Asensio Teresa - - 2004
BACKGROUND: Members belonging to 9 different families of plant pathogenesis-related (PR) proteins have been identified as pollen and food allergens. However, no PR-1 protein, a family widely distributed throughout the plant kingdom, has been involved so far in allergic reactions. On the other hand, melon ranges among the most relevant ...
Pastorello Elide A - - 2004
Lipid transfer proteins are widespread plant food allergens, highly resistant to food processing and to the gastrointestinal environment, which have recently been described as true food allergens in the Mediterranean area, where they have been associated with severe allergic reactions to foods in patients without pollen allergy. In this review ...
Scheurer Stephan - - 2004
BACKGROUND: Nonspecific lipid transfer proteins (nsLTPs) have been identified as major fruit allergens in patients from the Mediterranean area. Sensitization to nsLTPs is accompanied by severe reactions, possibly because of specific biophysical and biochemical properties of this allergen family. OBJECTIVE: To assess the protein stability and allergenic potency of nsLTP ...
Mouécoucou J - - 2004
BACKGROUND: Peanut is a major allergenic product. Manufacturing processes used in food industries to improve the physicochemical properties of food-based peanut (stabilization, texturization), could cause a modification of the digestibility of peanut proteins and, consequently, their allergenicity. OBJECTIVE: This study aimed at examining the influence of polysaccharides, i.e., gum arabic, ...
de Jong Nicolette W - - 2004
BACKGROUND: In 1999, an extensive study among bell pepper growers showed that a predatory mite, Amblyseius cucumeris, is a potentially relevant source of occupational allergens because 23% of the population had positive skin prick test reactions. OBJECTIVE: To investigate whether cross-reactivity between A. cucumeris and Dermatophagoides pteronyssinus is responsible for ...
Kircher Patrick R - - 2004
Chronic enteropathy due to food hypersensitivity is a common complaint in dogs and humans, and definitive diagnosis and identification of offending allergens remains challenging. Doppler waveform analysis of the celiac artery (CA) and the cranial mesenteric artery (CMA) of 8 dogs with proven food hypersensitivity was performed in the fasting ...
Kopper Randall A - - 2004
BACKGROUND: A major characteristic of many food allergens, including Ara h 1, a major peanut allergen, is their resistance to gastric digestion. One estimate of the allergenic potential of a possible protein allergen is its stability under simulated gastric conditions. OBJECTIVE: Because the rate and extent of digestion of allergenic ...
Barderas Rodrigo - - 2004
Chenopod pollen is one of the major sources of allergens in some locations in the US, southern Europe and desert countries, and pollen profilin (Che a 2) is a major allergen. Recombinant Che a 2 (rChe a 2) has been produced in Escherichia coil cells with a final yield of ...
Restani P - - 2004
OBJECTIVE: This review provides updated information on conformational and sequential epitopes identified in bovine serum albumin (BSA) and summarizes available data about the role of structural modifications on BSA antigenicity/allergenicity. DATA SOURCES: Data on beef allergy and BSA antigenicity are reported, with reference both to the basic literature and to ...
Capristo C - - 2004
Indoor allergens represent an important precipitating factor for both asthma and atopic eczema dermatitis syndromes (AEDS). There is also accumulating evidence that sensitization to those allergens is associated with the onset of atopic disorders. Patients with AEDS present aeroallergen-specific T-cell responses associated with worsening of symptoms when exposed to specific ...
Faeste Christiane K - - 2004
BACKGROUND: In a case monitored by the Norwegian National Register for Severe Allergic Reactions to Food, a patient with peanut allergy experienced an allergic reaction after eating a particular brand of hot dog bread. The aim of this study was to identify the eliciting allergen. METHODS: Extracts from the hot ...
Haffani Yosr Z - - 2004
In Brassica , the thioredoxin h proteins, THL1 and THL2, were previously found to be potential inhibitors of the S receptor kinase (SRK) in the Brassica self-incompatibility response. To investigate the biological roles of THL1 and THL2 in pollen-pistil interactions, the stigma-specific SLR1 promoter was used to drive antisense THL1/2 ...
Rozsasi A - - 2004
BACKGROUND: Antigen challenge in seasonal allergic rhinitis is considered to be associated with an increased ability of the nose to condition inspired air. In contrast, little is known about air conditioning after antigen challenge in perennial allergic rhinitis (PAR). OBJECTIVE: The aims of this study were to investigate whether antigen ...
Stephan Oliver - - 2004
Hidden allergens in food products are, especially for peanut-allergic consumers, a serious problem because even low amounts (approximately 200 microg) of peanut can elicit allergic reactions. Undeclared peanut traces can be found in processed food products, because contaminations with peanut during production processes are frequent. To minimize the risk of ...
Knippels Léon M J - - 2004
PURPOSE OF REVIEW: This review summarizes selected articles on animal models of food allergy published in 2003. The research areas that are covered include mechanistic studies, the search for new therapies, as well as screening models for hazard identification of potential allergens. RECENT FINDINGS: Novel treatment options of both prevention ...
Kobayashi Makio - - 2004
Soy sauce is a traditional fermented seasoning of East Asian countries and is available throughout the world. Wheat and soybeans are the 2 main raw materials of soy sauce, and soy sauce also contains a high concentration of salt. Since wheat allergy is considered a serious problem globally, it is ...
Sklar L A - - 2004
BACKGROUND: Eosinophils contribute to the pathogenesis of asthma and localize to the lung after allergen exposure by uncertain mechanisms. METHODS: We used intrabronchial instillation of allergen to model the interaction between inhaled allergen and the lung. We measured the number of peripheral blood leukocytes and the expression of VLA-4 (CD49d), ...
van Ree Ronald - - 2004
PURPOSE OF REVIEW: Review of recent developments in the field of cross-reactivity in food allergy and the clinical relevance of these developments. RECENT FINDINGS: New foods have been added to the list of Bet v 1 and profilin-related food allergies. Clinical relevance of cross-reactions based on recognition of carbohydrate determinants ...
Maleki Soheila J - - 2004
PURPOSE OF REVIEW: There has been an increase in the prevalence of food allergy, asthma and severe reactions to foods in the past decade. The reason for this increase is unknown and despite the potential for a lethal outcome, no treatments or therapies are available. Many areas are being explored ...
Shefcheck Kevin J - - 2004
Enzymatic digestion of total protein along with liquid chromatography/tandem mass spectrometry (LC/MS/MS) was used to confirm the presence of a major peanut allergen in food. Several peptides obtained from the enzymatic digestion of the most abundant peanut allergen, Ara h 1, were identified as specific peptide biomarkers for peanut protein. ...
Perry Tamara T - - 2004
BACKGROUND: Patients with peanut allergy can have serious reactions to very small quantities of peanut allergen and often go to extreme measures to avoid potential contact with this allergen. OBJECTIVE: The purpose of this study was to detect peanut allergen under various environmental conditions and examine the effectiveness of cleaning ...
Cordle Christopher T - - 2004
Food allergy is a relatively rare and sometimes violent reaction of the immune system to food proteins. The first report characterizing soy allergy appeared in 1934. The Food and Agriculture Organization of the United Nations includes soy in its list of the 8 most significant food allergens. At least 16 ...
Westphal S - - 2004
BACKGROUND: To date, very little data are available about the nature of tomato allergens. Immunoglobulin E (IgE) cross-reactive profilins have been suggested to account for allergic symptoms in patients suffering from tomato allergy. METHODS: The cDNA of tomato profilin was amplified by reversely transcribed polymerase chain reaction (RT-PCR) from total ...
Bolhaar S T H P - - 2004
The effect of birch-pollen immunotherapy (IT) on cross-reactive food allergies is controversial. The aim of this study was to investigate the effect of birch-pollen IT on apple allergy and to evaluate recombinant allergens and double-blind placebo-controlled food challenges (DBPCFCs) as monitoring tools. Twenty-five adult birch-pollen- and apple-allergic patients were randomly ...
Arshad S Hasan - - 2004
PURPOSE OF REVIEW: Recent increases in the prevalence of atopic disease argue strongly that environmental factors operating primarily in early life play a significant role. Exposure to food and inhalant allergens early in life may constitute a risk factor amenable to manipulation. RECENT FINDINGS: Recent observational and interventional studies have ...
Trucksess Mary W - - 2004
Peanuts are one of the 8 most common allergenic foods and a large proportion of peanut-allergic individuals have severe reactions, some to minimal exposure. Specific protein constituents in the peanuts are the cause of the allergic reactions in sensitized individuals who ingest the peanuts. To avoid accidental ingestion of peanut-contaminated ...
Asero Riccardo - - 2004
BACKGROUND: Lipid transfer protein (LTP), the major allergen in Rosaceae in geographic areas where the prevalence of birch pollen allergy is low, is a widely cross-reacting pan-allergen, but the pattern of cross-reactivity to plant-derived foods botanically unrelated to Rosaceae shows much variability. OBJECTIVE: To examine the relationship between peach LTP ...
Venturini M - - 2004
BACKGROUND: Several studies have shown that allergy to natural rubber latex is associated with cross reactivity to other plants. We have investigated a possible cross reactivity with a tree belonging to the Sterculiaceae family, Tryplochiton scleroxylon, in a patient allergic to obeche wood, that began to suffer symptoms of allergy ...
Jackson Catherine M - - 2004
BACKGROUND: Butterbur or Petasites hybridus is an herbal remedy that exhibits antihistamine and antileukotriene activity and has been shown to attenuate the response to adenosine monophosphate challenge in patients with allergic rhinitis and asthma. However, no data are available regarding its effects on the histamine and allergen cutaneous response. OBJECTIVE: ...
Nuutila, Anna Maria
Proteins in Food Processing. Yada, R.Y. (Ed.), 370 - 395
Puc MaƂgorzata - - 2004
Grass pollens are known as very potent aeroallergens. The aim of the study was to analyse the grass pollen season in Szczecin (western Poland) in the years 2000-2003 and to establish a relationship between the meteorological conditions and the pollen counts of Poaceae. The meteorological parameters analysed were the maximum ...
Hefle Susan L - - 2004
Although most food-allergic reactions occur after ingestion of nonpackaged food products, the food industry has been subjected to increasing scrutiny of their allergen controls; the resulting impact on the industry has been remarkable. Undeclared food allergens have been responsible for many food product recalls during the past 13 years, and ...
Bannon Gary A - - 2004
Food allergens are almost always proteins, but not all food proteins are allergens. This one statement sums up the purpose of this article, defining the difference between an innocuous food protein and a food allergen. The simplest answer is that a food allergen has the ability to first elicit an ...
Ishida Rinei - - 2004
Lymphocyte blastogenic responses against food allergens in dogs with food hypersensitivity were evaluated in this study. Eleven dogs with food hypersensitivity, based on food elimination and oral food provocation tests and allergic responses to food allergens, were examined by various tests such as intradermal testing, antigen-specific IgE testing, and lymphocyte ...
Poms R E - - 2004
Food allergies represent an important health problem in industrialized countries. Undeclared allergens as contaminants in food products pose a major risk for sensitized persons. A proposal to amend the European Food Labelling Directive requires that all ingredients intentionally added to food products will have to be included on the label. ...
van Woerden H - - 2004
Asthma does not have a clear cause and may represent a cluster of diseases. We propose that asthma in house dust mite sensitive patients may be caused by recurrent inhalation of live dust mites which are able to live for some time in the bronchioles of the lung. To provide ...
Pourpak Z - - 2004
Food allergy is responsible for the most frequent allergic reactions in children under 1 year of age. Diagnostic tests such as skin test or specific IgE assay usually need highly purified preparations of allergenic proteins. The aim of the present study was to purify three main cow's milk proteins: casein, ...
Cudowska B - - 2004
Pollen-related food allergy to fresh fruits and vegetables is a well-known clinical phenomenon. Bet v 1, the major birch pollen allergen, has been cloned and shows homologies to various food allergens (e.g. hazelnut, apple, celery, tomato). Allergy to profilin Bet v 2 was also described in 10-15% of patients sensitized ...
Weryszko-Chmielewska Elzbieta - - 2004
Pollen concentration in the atmosphere of Lublin (eastern Poland) was studied by means of volumetric method using Hirst sampler (VPPS 2000, Lanzoni) in 2001-2002. The pollen trap was mounted at the height of 15 m in the centre of Lublin. On the basis of analysis of mean daily values of ...
Watanabe Jun - - 2004
We propose a novel method to produce hypoallergenic wheat flour suitable for patients allergic to wheat by using enzymatic fragmentation with cellulase and actinase. The hypoallergenic flour displayed potent inhibitory activity against allergen absorption and actively suppressed allergic reactions, probably inducing oral tolerance. The results suggest that hypoallergenic wheat flour ...
Döner F - - 2004
To compare the OME groups that improved when treated with adenoidectomy, VT and medication, and which of them recurred. Twenty-two consecutive children with recurrent OME (11%) were selected among 200 children who had adenoidectomies and had been inserted a ventilation tube (VT) for OME. The patients were selected for allergy ...
Asero R - - 2004
There is increasing evidence that bird fanciers may develop airborne allergies to unusual allergens. To detect the allergen source in a bird fancier with a history of asthma associated with bird cage cleaning activities and with contact with a Brazil parrot. SPT with a large series of both airborne and ...
Enrique E - - 2004
The presence of profilin-specific IgE antibodies is a cause of cross-reactivity between botanically-unrelated allergen sources. Recently, the association between Platanus acerifolia pollinosis and plant-derived food allergy has been described. The aim of this study was to ascertain whether the P. acerifolia profilin is involved in such cross-reactivity. Twenty-three patients suffering ...
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