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https://www.readbyqxmd.com/read/28729921/an-outbreak-of-foodborne-norovirus-gastroenteritis-linked-to-a-restaurant-in-melbourne-australia-2014
#1
Shaun P Coutts, Kaye Sturge, Karin Lalor, John A Marshall, Leesa D Bruggink, Nela Subasinghe, Marion Easton
INTRODUCTION: In May 2014 an outbreak of norovirus occurred among patrons of a restaurant in Melbourne, Australia. Investigations were conducted to identify the infectious agent, mode of transmission and source of illness, and to implement controls to prevent further transmission. METHODS: A retrospective case-control study was conducted to test the hypothesis that food served at the restaurant between 9 and 15 May 2014 was the vehicle for infection. A structured questionnaire was used to collect demographic, illness and food exposure data from study participants...
April 2017: Western Pacific Surveillance and Response Journal: WPSAR
https://www.readbyqxmd.com/read/28719274/risk-factors-for-podoconiosis-kamwenge-district-western-uganda-september-2015
#2
Christine Kihembo, Ben Masiira, William Z Lali, Gabriel K Matwale, Joseph K B Matovu, Frank Kaharuza, Alex R Ario, Immaculate Nabukenya, Issa Makumbi, Monica Musenero, Bao-Ping Zhu, Miriam Nanyunja
AbstractPodoconiosis, a noninfectious elephantiasis, is a disabling neglected tropical disease. In August 2015, an elephantiasis case-cluster was reported in Kamwenge District, western Uganda. We investigated to identify the disease's nature and risk factors. We defined a suspected podoconiosis case as onset in a Kamwenge resident of bilateral asymmetrical lower limb swelling lasting ≥ 1 month, plus ≥ 1 of the following associated symptoms: skin itching, burning sensation, plantar edema, lymph ooze, prominent skin markings, rigid toes, or mossy papillomata...
June 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28689246/parasites-and-asthma
#3
REVIEW
Lin Wuhao, Chen Ran, He Xujin, Wu Zhongdao, Paron Dekumyoy, Lv Zhiyue
Nowadays, many studies have found low morbidity of asthma in epidemic areas of parasitic diseases, as shown by the hygiene hypothesis. It is obvious that some parasite infections can prevent asthma and studies have been carried out to clarify the mechanism of the preventive effect and search for the future asthmatic therapies. Previous findings have indicated that this mechanism may be related to the immune response switching from Th1 to Th2 and important cells induced by parasites, including the regulatory T cells, regulatory B cells, dendrite cells, and alternatively activated macrophages...
July 8, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28676192/eosinophilic-esophagitis-the-north-against-the-south-a-bio-economic-social-mechanistic-approach-and-clinical-implications
#4
D García-Compeán, J A González-González, E I González-Moreno, H J Maldonado-Garza
Eosinophilic esophagitis is a chronic antigen-mediated disease characterized by esophageal symptoms, esophageal eosinophilia, and the absence of response to proton pump inhibitors. It is the most frequent cause of dysphagia and food impaction in adults. Its incidence and prevalence is very high in the developed countries (USA, Europe, Australia), where its connotation is that of an emerging epidemic. While studies have been published with large case series in the developed countries, those published in Latin America are small or consist of isolated case reports...
July 1, 2017: Revista de Gastroenterología de México
https://www.readbyqxmd.com/read/28664463/therapeutic-potential-of-helminths-in-autoimmune-diseases-helminth-derived-immune-regulators-and-immune-balance
#5
REVIEW
Meng Wang, Linxiang Wu, Rennan Weng, Weihong Zheng, Zhongdao Wu, Zhiyue Lv
Helminths have accompanied human throughout history by releasing immune-evasion molecules that could counteract an aberrant immune response within the host. In the past decades, helminth infections are becoming less prevalent possibly due to the developed sanitation. Meanwhile, the incidence of autoimmune diseases is increasing, which cannot be exclusively explained by the changes of susceptibility genes. While the hygiene hypothesis casts light on the problem. The infections of helminths are believed to interact with and regulate human immunity with the byproduct of suppressing the autoimmune diseases...
June 29, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28642748/helicobacter-hygiene-atopy-and-asthma
#6
REVIEW
Muhammad Miftahussurur, Iswan A Nusi, David Y Graham, Yoshio Yamaoka
The hygiene hypothesis links environmental and microbial exposures in early life to the prevalence of atopy, allergy, and asthma. Helicobacter pylori infection is typically acquired in childhood and acquisition of the infection is associated with poor household hygiene. Some population surveys have shown an inverse association between H. pylori infection and atopy, allergy, and asthma leading to the suggestion that H. pylori infection may be protective against disease; others consider it simply a biomarker for poor household hygiene...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28622341/hygienic-and-grooming-behaviors-in-african-and-european-honeybees-new-damage-categories-in-varroa-destructor
#7
Beatrice T Nganso, Ayuka T Fombong, Abdullahi A Yusuf, Christian W W Pirk, Charles Stuhl, Baldwyn Torto
Varroa destructor is an ectoparasitic pest of honeybees, and a threat to the survival of the apiculture industry. Several studies have shown that unlike European honeybees, African honeybee populations appear to be minimally affected when attacked by this mite. However, little is known about the underlying drivers contributing to survival of African honeybee populations against the mite. We hypothesized that resistant behavioral defenses are responsible for the survival of African honeybees against the ectoparasite...
2017: PloS One
https://www.readbyqxmd.com/read/28614408/schistosoma-japonicum-infection-downregulates-house-dust-mite-induced-allergic-airway-inflammation-in-mice
#8
Sugan Qiu, Xiaolin Fan, Yingying Yang, Panpan Dong, Wei Zhou, Yongliang Xu, Yonghua Zhou, Fukun Guo, Yi Zheng, Jun-Qi Yang
The "hygiene hypothesis" is a theory try to explain the dramatic increases in the prevalence of autoimmune and allergic diseases over the past two to three decades in developed countries. According to this theory, reduced exposure to parasites and microorganisms in childhood is the main cause for the increased incidences of both T helper 1 (Th1)-mediated autoimmunity and Th2-mediated allergy. In this study, we investigated the impact of Schistosoma japonicum infection on the allergic airway inflammation induced by repeated intracheal inoculations of house dust mites (HDM), which is a Th17 and neutrophils dominant murine asthma model, mimicking severe asthma...
2017: PloS One
https://www.readbyqxmd.com/read/28605817/-handling-and-reprocessing-of-semicritical-medical-devices-in-the-ent-a-prospective-study
#9
Roland Hülse, Angela Wenzel, J Ulrich Sommer, Manfred Hülse, Karl Hörmann
Numerous laws, guidelines and recommendations govern the handling and reprocessing of semi-critical medical devices in the field of ENT. Although mechanically reprocessing is characterized as a preferential, manual reprocessing is still conducted in most ENT clinics and medical practices for reasons of cost and practicability. In the presented study, we developed an optimized hygienic concept for reprocessing of medical products in the field of ENT.A demand analysis of rigid endoscopes and of ENT equipment was carried out based on hypothesis that only mechanical reprocessing was performed for the entire instrumentation...
June 12, 2017: Laryngo- Rhino- Otologie
https://www.readbyqxmd.com/read/28580341/targeting-innate-immunity-to-downmodulate-adaptive-immunity-and-reverse-type-1-diabetes
#10
REVIEW
Arata Itoh, William M Ridgway
Type 1 diabetes (T1D) is characterized by specific destruction of pancreatic insulin-producing beta cells accompanied by evidence of beta-cell-directed autoimmunity such as autoreactive T cells and islet autoantibodies (IAAs). Currently, T1D cannot be prevented or reversed in humans. T1D is easy to prevent in the nonobese diabetic (NOD) spontaneous mouse model but reversing new-onset T1D in mice is more difficult. Since the discovery of the T-cell receptor in the 1980s and the subsequent identification of autoreactive T cells directed toward beta-cell antigens (eg, insulin, glutamic acid decarboxylase), the dream of antigen-specific immunotherapy has dominated the field with its promise of specificity and limited side effects...
2017: ImmunoTargets and Therapy
https://www.readbyqxmd.com/read/28494794/juvenile-idiopathic-arthritis-in-relation-to-perinatal-and-maternal-characteristics-a-case-control-study
#11
Samantha W Bell, Susan Shenoi, J Lee Nelson, Parveen Bhatti, Beth A Mueller
BACKGROUND: Existing data on associations between maternal and early childhood exposures and juvenile idiopathic arthritis (JIA) risk is scant and inconsistent with previous studies showing potential role for prematurity, number of siblings and infections. We explored JIA and International League of Associations for Rheumatology (ILAR) JIA categories in relation to selected infant (birthweight, size-for-gestational-age, gestational age), and maternal (parity, delivery type, prior fetal loss) characteristics that may be markers for exposures related to two pathways (hygiene hypothesis, microchimerism) potentially associated with autoimmune disorder occurrence...
May 11, 2017: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/28474475/what-happened-to-koch-s-postulates-in-diarrhoea
#12
Shamima Sultana, Shafiqul A Sarker, Harald Brüssow
In 1890, Robert Koch has formulated postulates describing what criteria a parasite has to fulfil to qualify as an aetiological agent for an infectious disease. Since then Koch's postulates have experienced reformulations by nearly every generation of microbiologists reflecting new discoveries changing the understanding of infectious diseases pathogenesis. The latest addition to this discussion is the role of the host commensal microbiota in turning infections into disease. After an overview of the historical developments of the postulates, data on diarrhoea aetiology from Bangladesh with respect to Koch's postulates were analysed...
May 4, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/28425257/role-of-hygienic-factors-in-the-etiology-of-allergic-disorders-in-children
#13
Şule Yeşil, Ahmet Kan, Olkar Abdulmajed, Arzu Bakirtaş, Nedim Sultan, Sadık M Demirsoy
BACKGROUND/AIM: We investigated the role of body flora and chronic inflammatory infections in the etiology of allergic disorders in Turkish children. MATERIALS AND METHODS: Forty pediatric asthma patients with positive skin prick tests and 40 age-matched healthy subjects with negative skin prick tests were enrolled in this cross-sectional study. Serum H. pylori IgG, viral hepatitis serology, IL-10, and TGF-beta levels were measured. Stool and throat cultures were taken and tested for occurrence of microorganisms...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28351489/dying-for-love-perimenopausal-degeneration-of-vaginal-microbiome-drives-the-chronic-inflammation-malignant-transformation-of-benign-prostatic-hyperplasia-to-prostatic-adenocarcinoma
#14
Albert Stuart Reece
Prostatic carcinoma is the second commonest cancer in males and is so common as to become almost holoendemic with advancing age. The recent demonstration that far from being benign, "benign" prostatic hypertrophy is a likely a reaction of the prostate to chronic untreated lower genital tract infection, and that this chronic inflammation is likely the usual precursor to the frequent occurrence of prostatic carcinoma has far reaching implications. The obvious source for the chronic inflammatory stimulus in the prostate is the documented dramatically altered lower female genital microbiota associated with the menopause...
April 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28350867/dissociation-between-skin-test-reactivity-and-anti-aeroallergen-ige-determinants-among-urban-brazilian-children
#15
Neuza M Alcantara-Neves, Rafael V Veiga, João C M Ponte, Sérgio S da Cunha, Silvia M Simões, Álvaro A Cruz, Maria Yazdanbakhsh, Sheila M Matos, Thiago Magalhães Silva, Camila A Figueiredo, Lain C Pontes-de-Carvalho, Laura C Rodrigues, Rosemeire L Fiaccone, Philip J Cooper, Maurício L Barreto
BACKGROUND: The dissociation between specific IgE and skin prick test reactivity to aeroallergens, a common finding in populations living in low and middle-income countries, has important implications for the diagnosis and treatment of allergic diseases. Few studies have investigated the determinants of this dissociation. In the present study, we explored potential factors explaining this dissociation in children living in an urban area of Northeast Brazil, focusing in particular on factors associated with poor hygiene...
2017: PloS One
https://www.readbyqxmd.com/read/28342137/skewed-exposure-to-environmental-antigens-complements-hygiene-hypothesis-in-explaining-the-rise-of-allergy
#16
Wilfried Allaerts, Tse Wen Chang
The Hygiene Hypothesis has been recognized as an important cornerstone to explain the sudden increase in the prevalence of asthma and allergic diseases in modernized culture. The recent epidemic of allergic diseases is in contrast with the gradual implementation of Homo sapiens sapiens to the present-day forms of civilization. This civilization forms a gradual process with cumulative effects on the human immune system, which co-developed with parasitic and commensal Helminths. The clinical manifestation of this epidemic, however, became only visible in the second half of the twentieth century...
June 2017: Acta Biotheoretica
https://www.readbyqxmd.com/read/28333952/adjuvant-treatment-with-the-bacterial-lysate-om-85-improves-management-of-atopic-dermatitis-a-randomized-study
#17
Christine Bodemer, Gerard Guillet, Frederic Cambazard, Franck Boralevi, Stefania Ballarini, Christian Milliet, Paola Bertuccio, Carlo La Vecchia, Jean-François Bach, Yves de Prost
BACKGROUND: Environmental factors play a major role on atopic dermatitis (AD) which shows a constant rise in prevalence in western countries over the last decades. The Hygiene Hypothesis suggesting an inverse relationship between incidence of infections and the increase in atopic diseases in these countries, is one of the working hypothesis proposed to explain this trend. OBJECTIVE: This study tested the efficacy and safety of oral administration of the bacterial lysate OM-85 (Broncho-Vaxom®, Broncho-Munal®, Ommunal®, Paxoral®, Vaxoral®), in the treatment of established AD in children...
2017: PloS One
https://www.readbyqxmd.com/read/28303762/tlr9-based-immunotherapy-for-the-treatment-of-allergic-diseases
#18
REVIEW
Shokrollah Farrokhi, Narjes Abbasirad, Ali Movahed, Hossein Ali Khazaei, Masoud Pishjoo, Nima Rezaei
Toll-like receptors (TLRs), a family of pattern recognition receptors expressed on many cell types of innate immunity, recognize the pathogen-associated molecular patterns of microbes. The hygiene hypothesis suggests that a reduced microbial exposure in early childhood increases the susceptibility to allergic diseases due to deviation in development of the immune system. TLRs are key roles in the right and healthy direction of adaptive immunity with the induction of T-helper 2 toward Th1 immune responses and regulatory T cells...
March 2017: Immunotherapy
https://www.readbyqxmd.com/read/28258270/oral-health-status-and-oral-health-related-quality-of-life-among-hospitalized-and-nonhospitalized-geriatric-patients
#19
Abdulaziz M AlBaker, Fahad F AlBaqami, Tariq M AlHarbi, Mohammad D AlAmri, Jagan K Baskaradoss
INTRODUCTION: The purpose of this study was to compare the oral health status and its effect on the oral health-related quality of life (OHRQoL) of hospitalized and nonhospitalized elderly patients in a single community. The null hypothesis for the study states that there is no difference in the oral health status and OHRQoL between hospitalized and nonhospitalized elderly patients. MATERIALS AND METHODS: This study was conducted at the King Khalid Hospital and College of Dentistry, King Saud University, Riyadh, Kingdom of Saudi Arabia...
March 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28257064/a-pilot-study-into-the-association-between-oral-health-status-and-human-papillomavirus-16-infection
#20
Charles Xiaohang Sun, Nigel Bennett, Peter Tran, Kai Dun Tang, Yenkai Lim, Ian Frazer, Lakshman Samaranayake, Chamindie Punyadeera
BACKGROUND: Over the next 20 years, oropharyngeal cancers (OPC) will represent the majority of head and neck cancers (HNCs) in the United States. It is estimated that human papillomavirus (HPV) may account for as much as 70% to 80% of OPCs in North America and in certain parts of Europe. It is hence crucial to understand the disease risk factors and natural history of oral HPV infections. We hypothesized that poor oral health (by measures such as poor oral hygiene and periodontal disease) leads to a higher degree of oral HPV-16 infections within a patient cohort from a dental school clinic...
March 1, 2017: Diagnostics
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