Hygiene Hypothesis
Mostrando 1-12 de 16 artigos, teses e dissertações.
-
1. Personality differences and COVID-19: are extroversion and conscientiousness personality traits associated with engagement with containment measures?
Abstract Introduction In December 2019, an outbreak of the novel coronavirus, the coronavirus disease 2019 (COVID-19) probably occurred in Wuhan, China. By March 2020, the World Health Organization (WHO) had declared a pandemic. Containment measures such as social distancing and hand hygiene were recommended. In this study, we start from the hypothesis tha
Trends Psychiatry Psychother.. Publicado em: 2020-06
-
2. Daily biofilm control and oral health: consensus on the epidemiological challenge - Latin American Advisory Panel
Our understanding of dental plaque biofilm has evolved since the nonspecific plaque hypothesis that considered plaque as a nonspecific mass of native microorganisms that, because of lack of oral hygiene, builds up in proportions great enough to overcome the host resistance threshold and affect the tooth structure and tooth supporting tissues. A great diversi
Braz. oral res.. Publicado em: 2012
-
3. Hepatitis C virus: molecular and epidemiological evidence of male-to-female transmission
INTRODUCTION: There is general consensus that hepatitis C virus is efficiently transmitted by the parenteral route, whereas data on viral transmission by sexual or non-sexual intrafamilial contact are conflicting. OBJECTIVE AND METHOD: The aim of this study was to investigate the transmission of hepatitis C virus in nine heterosexual couples. RESULT: The mea
Brazilian Journal of Infectious Diseases. Publicado em: 2010-10
-
4. Investigação dos fatores de risco para infecção por Toxoplasma Gondii e Helicobacter Pylori e possíveis associações destas infecções com asma e atopia.
Introduction: Toxoplasma gondii e Helicobacter pylori infections are endemic worldwide and characterized by chronic asymptomatic infections. Both infections are highly related with low socioeconomic status, lack of basic sanitation, hygiene e crowding condition. Moreover, it has been observed in industrialized countries a decrease in those infections prevale
Publicado em: 2009
-
5. Associação negativa entre atopia e toxoplasmose em seres humanos
Segundo a hipótese da higiene, a menor exposição a infecções está associada com o aumento na prevalência de doenças alérgicas. O objetivo deste estudo foi investigar a associação entre atopia e infecção por Toxoplasma gondii (Tg) em seres humanos pela análise da resposta imune humoral e celular em pacientes atópicos e não-atópicos, soroposit
Publicado em: 2009
-
6. Resistance to experimental autoimmune encephalomyelitis development in Lewis rats from a conventional animal facility
Experimental autoimmune encephalomyelitis (EAE) is an inflammatory disease of the brain and spinal cord that is mediated by CD4+ T lymphocytes specific to myelin components. In this study we compared development of EAE in Lewis rats from two colonies, one kept in pathogen-free conditions (CEMIB colony) and the other (Botucatu colony) kept in a conventional a
Memórias do Instituto Oswaldo Cruz. Publicado em: 2007-12
-
7. Childhood infections and asthma: at the crossroads of the hygiene and Barker hypotheses
The hygiene hypothesis states that childhood asthma develops as a result of decreased exposure to infectious agents during infancy and early childhood. This results in the persistence of the neonatal T helper lymphocyte 2 immunophenotype, thereby predisposing the child to atopic disease. While multiple studies support the hygiene hypothesis in asthma ontogen
BioMed Central.
-
8. Helicobacter pylori colonisation and eczema
The hygiene hypothesis postulates that the increase in atopic diseases may in part be due to diminished exposure to microorganisms. But it is unknown which type of infection does render protection. An epidemiological study was conducted in Leipzig, Germany, and its rural county, involving 3347 school starters. Two types of infection were considered: (1) gast
BMJ Group.
-
9. Mimicking microbial 'education' of the immune system: a strategy to revert the epidemic trend of atopy and allergic asthma?
Deficient microbial stimulation of the immune system, caused by hygiene, may underly the atopy and allergic asthma epidemic we are currently experiencing. Consistent with this 'hygiene hypothesis', research on immunotherapy of allergic diseases also centres on bacteria-derived molecules (eg DNA immunostimulatory sequences) as adjuvants for allergen-specific
BioMed Central.
-
10. Diet, infection, and acute appendicitis in Britain and Ireland.
During 1979-82 hospital discharge rates after emergency admission for acute appendicitis were higher in Eire (17.4 per 10,000 population) than in England (10.3), Scotland (11.1), or Wales (12.3). Comparison of food consumption between the four countries, and between the health board areas of Eire and regions of Scotland, shows that appendicitis rates are hig
-
11. Inhibition of experimental asthma by indoleamine 2,3-dioxygenase
Epidemiological evidence points to the inverse relationship between microbial exposure and the prevalence of allergic asthma and autoimmune diseases in Westernized countries. The molecular basis for this observation has not yet been completely delineated. Here we report that the administration of certain toll-like receptor (TLR) ligands, via the activation o
American Society for Clinical Investigation.
-
12. Effects of Respiratory Mycoplasma pneumoniae Infection on Allergen-Induced Bronchial Hyperresponsiveness and Lung Inflammation in Mice
Airway mycoplasma infection may be associated with asthma pathophysiology. However, the direct effects of mycoplasma infection on asthma remain unknown. Using a murine allergic-asthma model, we evaluated the effects of different timing of airway Mycoplasma pneumoniae infection on bronchial hyperresponsiveness (BHR), lung inflammation, and the protein levels
American Society for Microbiology.