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https://www.readbyqxmd.com/read/28922052/applications-of-emerging-transmission-electron-microscopy-technology-in-pcd-research-and-diagnosis
#1
Amelia Shoemark
Primary Ciliary Dyskinesia (PCD) is a heterogeneous genetic condition characterized by dysfunction of motile cilia. Patients suffer from chronic infection and inflammation of the upper and lower respiratory tract. Diagnosis of PCD is confirmed by identification of a hallmark defect of ciliary ultrastructure or by identification of biallelic pathogenic mutations in a known PCD gene. Since the first description of PCD in 1976, assessment of ciliary ultrastructure by transmission electron microscopy (TEM) has been central to diagnosis and research...
September 18, 2017: Ultrastructural Pathology
https://www.readbyqxmd.com/read/28921579/material-basis-studies-of-anti-influenza-a-active-ingredients-in-tanreqing-injection
#2
Haiyan Zhu, Mingchang Chen, Xunlong Shi, Chenchen Shi, Chenggang Huang
Tanreqing Injection (TRQ) has been used primarily in treating infections of the upper respiratory tract and serious influenza in China, as a classical compound herbal recipe. TRQ had been demonstrated its effects of clearing heat, eliminating phlegm, detoxification, reducing inflammation and alleviating cough. The survival rate, histopathology of lungs and viral titers in mice were evaluated in this study to verify the curative effect of TRQ. However, there is not enough information about the components. In the present study, a high-performance and practical LC/QTOF/MS method was developed for characterization and identification of the natural ingredients in TRQ...
September 15, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28919061/efficacy-and-safety-of-dapagliflozin-in-patients-with-inadequately-controlled-type-1-diabetes-depict-1-24-week-results-from-a-multicentre-double-blind-phase-3-randomised-controlled-trial
#3
Paresh Dandona, Chantal Mathieu, Moshe Phillip, Lars Hansen, Steven C Griffen, Diethelm Tschöpe, Fredrik Thorén, John Xu, Anna Maria Langkilde
BACKGROUND: Dapagliflozin is a sodium-glucose cotransporter-2 inhibitor approved for the treatment of type 2 diabetes. We aimed to assess the efficacy and safety of dapagliflozin as an add-on to adjustable insulin in patients with inadequately controlled type 1 diabetes. METHODS: DEPICT-1 was a double-blind, randomised, parallel-controlled, three-arm, phase 3, multicentre study done at 143 sites in 17 countries. Eligible patients were aged 18-75 years and had inadequately controlled type 1 diabetes (HbA1c between ≥7·7% and ≤11·0% [≥61·0 mmol/mol and ≤97·0 mmol/mol]) and had been prescribed insulin for at least 12 months before enrolment...
September 13, 2017: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/28918656/diagnosing-kingella-kingae-infections-in-infants-and-young-children
#4
Pablo Yagupsky
Kingella kingae is currently recognized as the prime etiology of skeletal system infections in children aged 6-48 months. The organism is notoriously fastidious, its growth is inhibited by synovial fluid and bone exudates, and its presence in clinical specimens is commonly missed by traditional culture methods. Areas covered. The present review discusses the use of improved laboratory methods to detect the organism in normally sterile body fluids, exudates, and upper respiratory tract specimens. Expert commentary...
September 18, 2017: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/28912822/a-rare-case-of-cavitary-lesion-of-the-lung-caused-by-mycoplasma-pneumoniae-in-an-immunocompetent-patient
#5
Muhammad Kashif, Rizwan Ahmed Dudekula, Misbahuddin Khaja
Mycoplasma pneumoniae is an atypical bacterium that most commonly causes upper respiratory tract infections, but it can also cause pneumonia, referred to as "walking pneumonia." Although cavitary lesions are present in a wide variety of infectious and noninfectious processes, those attributable to M. pneumoniae are extremely uncommon; thus, to date, epidemiological studies are lacking. Here, we present a rare case of a 20-year-old male, referred to us from a psychiatric facility for evaluation of a cough, who was found to have a cavitary lesion in the right upper lobe...
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/28912760/immunization-with-live-human-rhinovirus-hrv-16-induces-protection-in-cotton-rats-against-hrv14-infection
#6
Mira C Patel, Lioubov M Pletneva, Marina S Boukhvalova, Stefanie N Vogel, Adriana E Kajon, Jorge C G Blanco
Human rhinoviruses (HRVs) are the main cause of cold-like illnesses, and currently no vaccine or antiviral therapies against HRVs are available to prevent or mitigate HRV infection. There are more than 150 antigenically heterogeneous HRV serotypes, with ∼90 HRVs belonging to major group species A and B. Development of small animal models that are susceptible to infection with major group HRVs would be beneficial for vaccine research. Previously, we showed that the cotton rat (Sigmodon hispidus) is semi-permissive to HRV16 (major group, species HRV-A virus) infection, replicating in the upper and lower respiratory tracts with measurable pathology, mucus production, and expression of inflammatory mediators...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28912507/fast-track-development-of-an-in-vitro-3d-lung-immune-cell-model-to-study-aspergillus-infections
#7
P Chandorkar, W Posch, V Zaderer, M Blatzer, M Steger, C G Ammann, U Binder, M Hermann, P Hörtnagl, C Lass-Flörl, D Wilflingseder
To study interactions of airborne pathogens, e.g. Aspergillus (A.) fumigatus with upper and lower respiratory tract epithelial and immune cells, we set up a perfused 3D human bronchial and small airway epithelial cell system. Culturing of normal human bronchial or small airway epithelial (NHBE, SAE) cells under air liquid interphase (ALI) and perfusion resulted in a significantly accelerated development of the lung epithelia associated with higher ciliogenesis, cilia movement, mucus-production and improved barrier function compared to growth under static conditions...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28912442/the-association-between-respiratory-tract-infection-incidence-and-localised-meningitis-epidemics-an-analysis-of-high-resolution-surveillance-data-from-burkina-faso
#8
Judith E Mueller, Maxime Woringer, Souleymane Porgho, Yoann Madec, Haoua Tall, Nadège Martiny, Brice W Bicaba
Meningococcal meningitis epidemics in the African meningitis belt consist of localised meningitis epidemics (LME) that reach attack proportions of 1% within a few weeks. A meningococcal serogroup A conjugate vaccine was introduced in meningitis belt countries from 2010 on, but LME due to other serogroups continue to occur. The mechanisms underlying LME are poorly understood, but an association with respiratory pathogens has been hypothesised. We analysed national routine surveillance data in high spatial resolution (health centre level) from 13 districts in Burkina Faso, 2004-2014...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28905526/transmission-and-immunopathology-of-the-avian-influenza-virus-a-anhui-1-2013-h7n9-human-isolate-in-three-commonly-commercialized-avian-species
#9
B Vidaña, R Dolz, N Busquets, A Ramis, R Sánchez, R Rivas, R Valle, I Cordón, D Solanes, J Martínez, N Majó
H7N9 virus infection is a global concern, given that it can cause severe infection and mortality in humans. However, the understanding of H7N9 epidemiology, animal reservoir species and zoonotic risk remains limited. This work evaluates the pathogenicity, transmissibility and local innate immune response of three avian species harbouring different respiratory distribution of α2,6 and α2,3 SA receptors. Muscovy ducks, European quails and SPF chickens were intranasally inoculated with 10(5) embryo infectious dose (EID)50 of the human H7N9 (A/Anhui/1/2013) influenza isolate...
September 14, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28905361/association-between-oral-health-and-upper-respiratory-tract-infection-among-children
#10
Ying Zhou, Shan Jiang, Kar Yan Li, Edward Chin Man Lo, Xiaoli Gao
BACKGROUND: The oral cavity is a potential reservoir for respiratory pathogens. This longitudinal study investigated the association between upper respiratory tract infection (URI) and oral health among children. METHODS: A total of 288 children aged 4 years were recruited. Their dental caries and oral hygiene status were clinically determined, using the dmft (decayed, missing and filled teeth) index and the Silness-Löe plaque index. Questionnaires were completed by parents to collect information on the child's socio-demographic background and URI episodes and symptoms in the following 12 months...
September 14, 2017: International Dental Journal
https://www.readbyqxmd.com/read/28904172/fda-approval-summary-daratumumab-for-treatment-of-multiple-myeloma-after-one-prior-therapy
#11
Vishal Bhatnagar, Nicole J Gormley, Lola Luo, Yuan Li Shen, Rajeshwari Sridhara, Sriram Subramaniam, Guoxiang Shen, Lian Ma, Stacy Shord, Kirsten B Goldberg, Ann T Farrell, Amy E McKee, Richard Pazdur
On November 21, 2016, the U.S. Food and Drug Administration granted regular approval to daratumumab in combination with lenalidomide and dexamethasone, or bortezomib and dexamethasone, for the treatment of patients with multiple myeloma who have received at least one prior therapy. Approval was based on two randomized, open-label trials in which daratumumab was added to these backbone therapies. The MMY3003 trial demonstrated substantial improvement in progression-free survival (PFS) when daratumumab was added to lenalidomide and dexamethasone compared with lenalidomide and dexamethasone alone...
September 13, 2017: Oncologist
https://www.readbyqxmd.com/read/28903080/transplacental-transfer-of-maternal-respiratory-syncytial-virus-rsv-antibody-and-protection-against-rsv-disease-in-infants-in-rural-nepal
#12
Helen Y Chu, James Tielsch, Joanne Katz, Amalia S Magaret, Subarna Khatry, Stephen C LeClerq, Laxman Shrestha, Jane Kuypers, Mark C Steinhoff, Janet A Englund
BACKGROUND: Respiratory syncytial virus (RSV) is the most important viral cause of pneumonia in children. RSV-specific antibody (ab) protects infants from disease, and may be increased by a potential strategy of maternal RSV vaccination. OBJECTIVES: To describe the effect of RSV antibody on RSV infection risk in infants in a resource-limited setting. STUDY DESIGN: In a prospective study in Nepal, women were enrolled during pregnancy and maternal and infant cord blood were collected at birth...
September 2, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28899494/intranasal-co-administration-of-1-8-cineole-with-influenza-vaccine-provide-cross-protection-against-influenza-virus-infection
#13
Yun Li, Yu-Ling Xu, Yan-Ni Lai, Shang-Hui Liao, Ni Liu, Pei-Ping Xu
BACKGROUND: Vaccination is the most efficient means for protection against influenza. However, the various vaccines have low efficacy to protect against pandemic strains because of antigenic drift and recombination of influenza virus. Adjuvant therapy is one of the attempts to improve influenza vaccine effective cross-protection against influenza virus infection. Our previous study confirmed that 1,8-cineole inhibits the NF-κB, reduces pro-inflammatory cytokines, and relieves the pathological changes of viral pneumonia in mice infected with influenza virus...
October 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28895388/probiotic-strains-as-the-element-of-nutritional-profile-in-physical-activity-%C3%A2-new-trend-or-better-sports-results
#14
Joanna Smarkusz, Lucyna Ostrowska, Katarzyna Witczak-Sawczuk
A diet, individually customized to the needs of sportsmen and sportswomen prepares them better for competition and achievement of better sports results. However, disorders of the gastrointestinal tract and frequently recurrent upper respiratory tract infections pose a common problem observed among athletes of disciplines such as triathlon, cycling and marathon. Diarrhea, splashing in the intestines or gastrointestinal bleeding make it difficult to start and win in the race. Recently researchers have paid special attention to the therapeutic effect of probiotic strains on the human body...
2017: Roczniki Państwowego Zakładu Higieny
https://www.readbyqxmd.com/read/28893615/molecular-epidemiology-and-environmental-contamination-during-an-outbreak-of-parainfluenza-virus-3-in-a-hematology-ward
#15
Taeeun Kim, Choong Eun Jin, Heungsup Sung, Bonhan Koo, Joungha Park, Sun-Mi Kim, Ji Yeun Kim, Yong Pil Chong, Sang-Oh Lee, Sang-Ho Choi, Yang Soo Kim, Jun Hee Woo, Jung-Hee Lee, Je-Hwan Lee, Kyoo-Hyung Lee, Yong Shin, Sung-Han Kim
BACKGROUND: Although fomites or contaminated surfaces have been considered as transmission routes, the role of environmental contamination by human parainfluenza virus type 3 (hPIV-3) in healthcare settings is not established. AIM: To describe an hPIV-3 nosocomial outbreak and the results of environmental sampling to elucidate the source of nosocomial transmission and the role of environmental contamination. METHODS: During an hPIV-3 outbreak between May and June 2016, we swabbed environmental surfaces in contact with clustered patients and used respiratory specimens from infected patients and epidemiologically unlinked controls...
September 8, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28891268/pediatric-respiratory-tract-diseases-chronological-trends-and-perspectives
#16
Houda Ben Ayed, Sourour Yaïch, Maïssa Ben Jmaa, Jihene Jedidi, Mariem Ben Hmida, Maroua Trigui, Mondher Kassis, Raouf Karray, Yosra Mejdoub, Habib Feki, Jamel Damak
BACKGROUND: We aimed to draw the epidemiological profile of respiratory tract diseases (RTD) among children in the region of Sfax and to evaluate their current trends over a 13-year period. METHODS: We conducted a retrospective study including all children hospitalized with RTD aged under 14 years. We collected data from the regional morbidity register of the university hospital of Sfax from 2003 to 2015. RESULTS: We included 10797 cases with RTD among 49880 pediatric hospitalizations (21...
September 10, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/28887290/individual-feedback-to-reduce-inappropriate-antimicrobial-prescriptions-for-treating-acute-upper-respiratory-tract-infections-in-an-outpatient-setting-of-a-thai-university-hospital
#17
Pinyo Rattanaumpawan, Nuttagarn Chuenchom, Visanu Thamlikitkul
BACKGROUND: Excessive antimicrobial use for acute Upper Respiratory InfectionBackground Excessive antimicrobial use for acute Upper Respiratory Infections (URIs) is one of the most common problems in clinical practice. Interventions are needed to reduce antimicrobial overuse in these common infections.s (URIs) is one of the most common problems in clinical practice. Interventions are needed to reduce antimicrobial overuse in these common infections. METHODS: During a 9-month study period (June 2014-February 2015), we conducted a quasi-experimental (pre/post) study among internal medicine residents and fellows in an outpatient setting of Siriraj Hospital, Thailand...
September 5, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28886185/clinical-features-and-seasonality-of-parechovirus-infection-in-an-asian-subtropical-city-hong-kong
#18
Grace P K Chiang, Zigui Chen, Martin C W Chan, Simon H M Lee, Angela K Kwok, Apple C M Yeung, E Anthony S Nelson, Kam Lun Hon, Ting Fan Leung, Paul K S Chan
BACKGROUND: The epidemiology of human parechovirus (HPeV) in Asia remains obscure. We elucidated the prevalence, seasonality, type distribution and clinical presentation of HPeV among children in Hong Kong. METHODS: A 24-month prospective study to detect HPeV in children ≤36 months hospitalized for acute viral illnesses. RESULTS: 2.3% of the 3911 children examined had HPeV infection, with most (87.5%) concentrated in September-January (autumn-winter)...
2017: PloS One
https://www.readbyqxmd.com/read/28885955/comparison-of-clinical-features-in-a-population-of-basic-military-trainees-versus-the-general-department-of-defense-beneficiary-population-presenting-with-influenza
#19
H Samuel Scheuller, Jisuk Park, Lisa Lott, Michele Tavish, Patrick Danaher
INTRODUCTION: Upper respiratory tract infection (URI) is a well-documented cause of morbidity, extra expense, and lost training time among basic military trainees (BMTs). The goal of this study was to characterize the clinical presentation of influenza in the BMT population and to better understand how this presentation differs from that of the general Department of Defense (DoD) beneficiary population (non-BMTs). MATERIALS AND METHODS: Clinical and demographic data were collected in a prospective study that enrolled DoD beneficiaries presenting to medical treatment facilities in San Antonio, Texas, with URI symptoms between January 2005 and March 2011...
September 2017: Military Medicine
https://www.readbyqxmd.com/read/28884666/ictv-virus-taxonomy-profile-picornaviridae
#20
R Zell, E Delwart, A E Gorbalenya, T Hovi, A M Q King, N J Knowles, A M Lindberg, M A Pallansch, A C Palmenberg, G Reuter, P Simmonds, T Skern, G Stanway, T Yamashita, Ictv Report Consortium
The family Picornaviridae comprises small non-enveloped viruses with RNA genomes of 6.7 to 10.1 kb, and contains >30 genera and >75 species. Most of the known picornaviruses infect mammals and birds, but some have also been detected in reptiles, amphibians and fish. Many picornaviruses are important human and veterinary pathogens and may cause diseases of the central nervous system, heart, liver, skin, gastrointestinal tract or upper respiratory tract. Most picornaviruses are transmitted by the faecal-oral or respiratory routes...
September 8, 2017: Journal of General Virology
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