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https://www.readbyqxmd.com/read/28735462/effect-of-decreased-bcaa-synthesis-through-disruption-of-ilvc-gene-on-the-virulence-of-streptococcus-pneumoniae
#1
Gyu-Lee Kim, Seungyeop Lee, Truc Thanh Luong, Cuong Thach Nguyen, Sang-Sang Park, Suhkneung Pyo, Dong-Kwon Rhee
Streptococcus pneumoniae (pneumococcus) is responsible for significant morbidity and mortality worldwide. It causes a variety of life-threatening infections such as pneumonia, bacteremia, and meningitis. In bacterial physiology, the metabolic pathway of branched-chain amino acids (BCAAs) plays an important role in virulence. Nonetheless, the function of IlvC, one of the enzymes involved in the biosynthesis of BCAAs, in S. pneumoniae remains unclear. Here, we demonstrated that downregulation of BCAA biosynthesis by ilvC ablation can diminish BCAA concentration and expression of pneumolysin (Ply) and LytA, and subsequently attenuate virulence...
July 22, 2017: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/28735059/too-young-to-be-vaccinated-hospitalizations-caused-by-varicella-among-children-in-the-first-year-of-life
#2
Ewelina Gowin, Jacek Wysocki, Michał Michalak, Danuta Januszkiewicz-Lewandowska
AIM: The aim of this study was to analyse the causes of hospitalization in the course of varicella in children during the first year of life. METHODS: We have analysed the medical documentation of 359 children hospitalized for varicella at the Infectious Diseases Ward in Children's Hospital in Poznan (Poland) between January 2007 and August 2015. RESULTS: In the study group there were 96 children younger than one year. The most common cause of hospitalization was respiratory infections, found in 31 (32%) children...
July 19, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28734862/respiratory-infections-and-antibiotic-usage-in-common-variable-immunodeficiency
#3
Johannes M Sperlich, Bodo Grimbacher, Sarita Workman, Tanzina Haque, Suranjith L Seneviratne, Siobhan O Burns, Veronika Reiser, Werner Vach, John R Hurst, David M Lowe
BACKGROUND: Patients with common variable immunodeficiency (CVID) suffer frequent respiratory tract infections despite immunoglobulin replacement and are prescribed significant quantities of antibiotics. The clinical and microbiological nature of these exacerbations, the symptomatic triggers to take antibiotics, and the response to treatment have not been previously investigated. OBJECTIVES: To describe the nature, frequency, treatment, and clinical course of respiratory tract exacerbations in patients with CVID and to describe pathogens isolated during respiratory tract exacerbations...
July 19, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28734808/-congenital-cytomegalovirus-infection-manifesting-as-neonatal-respiratory-distress-in-an-hiv-exposed-uninfected-newborn
#4
A Pham, H El Mjati, N Nathan, F Kieffer, D Mitanchez
BACKGROUND: Cytomegalovirus (CMV) is one of the most common intrauterine infections, affecting approximately 1% of all live births. There are few reports on congenital CMV infections manifesting as isolated pneumonitis. CASE REPORT: We report a case of congenital CMV with neonatal respiratory distress affecting an HIV-exposed uninfected infant. This infant required noninvasive ventilation beginning within the first 15min of life. The initial chest X-ray showed diffuse bilateral ground-glass opacifications...
July 19, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28734805/c-reactive-protein-mediating-immunopathological-lesions-a-potential-treatment-option-for-severe-influenza-a-diseases
#5
Rongbao Gao, Lijie Wang, Tian Bai, Ye Zhang, Hong Bo, Yuelong Shu
Severe influenza diseases with high mortality have been frequently reported, especially in those patients infected with avian influenza A (H5N1, H7N9 or H10N8) or during a pandemic. Respiratory distress, which is attributed to alveolar damage associated with immunopathological lesions, is the most common cause of death. There is a wealth of information on pathogenesis or treatment options. In this study, we showed that high levels of C-reactive protein (CRP) were induced and correlated with complement activation in patients infected with severe influenza A (H5N1, H7N9 or H10N8), and higher levels were induced in fatal patients than in survivors...
July 13, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28734713/epidemiological-and-molecular-characteristics-of-chlamydia-psittaci-from-8-human-cases-of-psittacosis-and-4-related-birds-in-argentina
#6
María E Cadario, María C Frutos, Maite B Arias, Javier A Origlia, Vanina Zelaya, María J Madariaga, Claudia S Lara, Viviana Ré, Cecilia G Cuffini
In Argentina, the epidemiological and molecular characteristics of Chlamydia psittaci infections are still not sufficiently known. A total of 846 respiratory and 10 ocular samples from patients with suspected human psittacosis were tested for C. psittaci from January 2010 to March 2015. Four samples of birds related to these patients were also studied. Forty-eight samples were positive for C. psittaci by a nested PCR. The molecular characterization of twelve C. psittaci PCR-positive samples received in the National Reference Laboratory INEI-ANLIS "Dr...
July 19, 2017: Revista Argentina de Microbiología
https://www.readbyqxmd.com/read/28734541/response-to-mortality-length-of-stay-bloodstream-and-respiratory-viral-infections-in-a-pediatric-intensivecare-unit-comment-on-data-sparsity
#7
Kam Lun Hon, Maggie Haitian Wang
No abstract text is available yet for this article.
July 9, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28733286/the-regulator-ldhr-and-the-d-lactate-dehydrogenase-ldha-of-burkholderia-multivorans-play-a-role-in-carbon-overflow-and-in-planktonic-cellular-aggregates-formation
#8
Inês N Silva, Marcelo J Ramires, Lisa A Azevedo, Ana R Guerreiro, Andreia C Tavares, Jörg D Becker, Leonilde M Moreira
LysR-type transcriptional regulators (LTTR) are the most commonly found regulators in Burkholderia cepacia complex, comprising opportunistic pathogens causing chronic respiratory infections in cystic fibrosis (CF) patients. Despite LTTRs being global regulators of pathogenicity in several bacteria, few have been characterized in Burkholderia Here, we showed that gene ldhR of B. multivorans encoding a LTTR is co-transcribed with ldhA encoding a d-lactate dehydrogenase, and evaluate their implication in virulence traits like exopolysaccharide (EPS) synthesis and biofilm formation...
July 21, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28733284/specific-signatures-of-the-gut-microbiota-and-increased-levels-of-butyrate-in-children-treated-with-fermented-cow-s-milk-containing-heat-killed-lactobacillus-paracasei-cba-l74
#9
Roberto Berni Canani, Francesca De Filippis, Rita Nocerino, Manolo Laiola, Lorella Paparo, Antonio Calignano, Carmen De Caro, Lorena Coretti, Lorenzo Chiariotti, Jack A Gilbert, Danilo Ercolini
We recently demonstrated that cow's milk fermented with the probiotic L.paracasei CBA L74 (FM-CBAL74) reduces the incidence of respiratory and gastrointestinal tract infections in young children attending school. This effect apparently derives from a complex regulation of non-immune and immune protective mechanisms. We investigated wheter FM-CBAL74 could regulate gut microbiota composition and butyrate production.We randomly selected 20 healthy children (12-48 months) from the previous randomized controlled trial, before (t0) and after 3 months (t3) of dietary treatment with FM-CBAL74 (FM), or placebo (PL)...
July 21, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28732152/secukinumab-in-the-treatment-of-psoriasis-and-psoriatic-arthritis-a-review-of-the-literature
#10
M Abrouk, J Gandy, M Nakamura, K Lee, M Brodsky, R Singh, H Zhu, B Farahnik, T Bhutani, J Koo
While there are several commercially available treatment options for psoriasis and psoriatic arthritis, there remains a large number of individuals who are refractory to current modalities. In the recent past, there has been increasing evidence that interleukin (IL)-17 plays a vital role in the pathophysiology of psoriasis. Preclinical, phase II, and phase III studies of secukinumab (Cosentyx®) targeting IL-17 and its receptor have thus far proved to be promising. We reviewed the results of phase II and phase III clinical trials for secukinumab in the treatment of psoriasis and psoriatic arthritis...
July 2017: Skin Therapy Letter
https://www.readbyqxmd.com/read/28731923/human-bocavirus-can-it-trigger-hemophagocytic-lymphohistiocytosis
#11
Sevgen Tanir Basaranoglu, Kubra Aykac, Yasemin Ozsurekci, Inci Bajin, Betul Tavil, Fatma Gumruk, Mehmet Ceyhan
With improvements in molecular diagnostic methods, report of Human bocavirus (HBoV) as an etiologic agent in many studies on viral respiratory and gastrointestinal infections has been increasing. Two pediatric patients who presented with secondary hemophagocytic lymphohistiocytosis were examined for etiologic causes, including viruses. Whole bacterial and fungal cultures and viral serological studies were negative. Viral polymerase chain reaction of nasopharyngeal secretions showed HBoV. One was successfully treated with intravenous immunoglobulins, whereas the other died with multiorgan failure...
July 20, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28731511/hypothermia-at-neonatal-intensive-care-unit-admission-was-not-associated-with-respiratory-disease-or-death-in-very-preterm-infants
#12
C F Jensen, F Ebbesen, J P Petersen, A Sellmer, C C Bach, T B Henriksen
AIM: This study investigated the association between hypothermia and respiratory distress syndrome (RDS), bronchopulmonary dysplasia (BPD) or death in very preterm infants admitted to a Danish neonatal intensive care unit (NICU). METHODS: We studied 675 infants born at Aalborg University Hospital before 32 weeks and admitted to the NICU from April 1997 to December 2011. Hypothermia was defined as a core temperature of less than 36.5°C on admission. The primary outcome was severe RDS or death within the first three days of life and the secondary outcome was BPD or death before 36 postmenstrual weeks...
July 21, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28731410/infectious-and-noninfectious-pulmonary-complications-in-patients-with-primary-immunodeficiency-disorders
#13
REVIEW
R Yazdani, H Abolhassani, M Asgardoon, M Shaghaghi, M Modaresi, G Azizi, A Aghamohammadi
Primary immunodeficiency disorders (PIDs) are caused by 1 or more defects of the immune system. Patients are more likely to experience recurrent and/or severe infections and tend to develop a wide range of complications. Respiratory diseases are the main and initial manifestation in most cases and the most common complication. Pulmonary complications cause significant morbidity and mortality in patients with PIDs. Early diagnosis and appropriate treatment can prevent or at least slow the development of respiratory complications...
2017: Journal of Investigational Allergology & Clinical Immunology
https://www.readbyqxmd.com/read/28731388/electronic-visits-for-minor-acute-illnesses-analysis-of-patient-demographics-prescription-rates-and-follow-up-care-within-an-asynchronous-text-based-online-visit
#14
Kristine S Penza, Martha A Murray, Jennifer L Pecina, Jane F Myers, Joseph W Furst
INTRODUCTION: Patients can obtain medical advice and treatment from a healthcare provider asynchronously through an electronic visit (eVisit) within a secure online portal. METHODS: We conducted a retrospective record review of Mayo Clinic Rochester primary care empaneled patients who had an eVisit for a minor acute illness and were reviewed for 30-day outcomes of follow-up. RESULTS: Of the 1,009 eVisits analyzed, a total of 340 (34%) had follow-up within 30 days, with a follow-up rate of 154 (20%) when those who were advised to follow-up were excluded...
July 20, 2017: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/28731281/glycaemic-control-and-the-risk-of-hospitalisation-for-infection-in-patients-with-type-2-diabetes-hong-kong-diabetes-registry
#15
Andrea O Y Luk, Eric S H Lau, Kitty K T Cheung, Alice P Kong, Ronald C W Ma, Risa Ozaki, Francis C C Chow, Wing-Yee So, Juliana C N Chan
BACKGROUND: Infection occurs more commonly in diabetic compared to general population and is an under-recognised but important morbidity in patients with diabetes. We examined the impact of glycaemic control on hospitalisation for infection in a large prospective cohort of Chinese adults with type 2 diabetes. METHODS: Between July 1994 and June 2014, 22,846 patients with type 2 diabetes underwent detailed assessment of metabolic control and diabetes complications...
July 21, 2017: Diabetes/metabolism Research and Reviews
https://www.readbyqxmd.com/read/28731127/pidotimod-exacerbates-allergic-pulmonary-infection-in-an-ova-mouse-model-of-asthma
#16
Luo-Qin Fu, Ya-Li Li, Ai-Kun Fu, Yan-Ping Wu, Yuan-Yuan Wang, Sheng-Lan Hu, Wei-Fen Li
Pidotimod is a synthetic dipeptide with biological and immuno‑modulatory properties. It has been widely used for treatment and prevention of recurrent respiratory infections. However, its impact on the regulation of allergic pulmonary inflammation is still not clear. In the current study, an ovalbumin (OVA)‑induced allergic asthma model was used to investigate the immune‑modulating effects of pidotimod on airway eosinophilia, mucus metaplasia and inflammatory factor expression compared with dexamethasone (positive control)...
July 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28730407/venous-thromboembolism-thrombosis-inflammation-and-immunothrombosis-for-clinicians
#17
REVIEW
Eduardo Vazquez-Garza, Carlos Jerjes-Sanchez, Aline Navarrete, Jorge Joya-Harrison, David Rodriguez
Venous thromboembolism (VTE) is a worldwide disease related with mortality, cardiovascular disability, impaired quality of life and, cause major long-term complications. Clinicians related to the acute and long-term patients care must be involved in the molecular mechanisms of thrombosis. The vessel wall and its inner lining of the endothelium are critical to the maintenance of a patent vasculature. After endothelial disruption, collagen (first line of endothelial defense) and intravascular tissue factor (second line of endothelial defense) are exposed to blood flow, starting the formation of a thrombus...
July 20, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28730222/tuberculosis-and-its-particularities-in-romania-and-worldwide
#18
Floarea Mimi NiŢu, Mihai Olteanu, Costin Teodor Streba, Gabriela Jimborean, Paraschiva Postolache, Milena Adina Man, Antigona Carmen Trofor, Roxana Maria Nemeş, Livia Dragonu, Mădălina Olteanu
Tuberculosis (TB) is a global health issue, with a rising incidence since the beginning of this century. It poses a severe mortality risk and also poses a serious economic risk as it reduces the working capacity of an individual in the most productive part of life. Developing countries face widespread tuberculosis infection - up to 95% of all cases and 98% of deaths, respectively. It is a highly contagious infectious disease caused by Mycobacterium tuberculosis (the Koch bacillus) that can be contracted from either humans or animal hosts...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28730137/pediatric-mycoplasma-pneumoniae-infection-presenting-with-acute-cholestatic-hepatitis-and-other-extrapulmonary-manifestations-in-the-absence-of-pneumonia
#19
Won Jae Song, Ben Kang, Hwa Pyung Lee, Joongbum Cho, Hae Jeong Lee, Yon Ho Choe
Mycoplasma pneumoniae infections mainly involve respiratory tract; however, also can manifestate other symptoms by site involved. Extrapulmonary manifestations of M. pneumoniae infection are rarely known to occur without pneumonia. Herein we report a case of a 9-year-old boy who presented with acute cholestatic hepatitis in the absence of pneumonia. Rhabdomyolysis, skin rash, and initial laboratory results suspicious of disseminated intravascular coagulopathy were also observed in this patient. M. pneumoniae infection was identified by a 4-fold increase in immunoglobulin G antibodies to M...
June 2017: Pediatric Gastroenterology, Hepatology & Nutrition
https://www.readbyqxmd.com/read/28729852/towards-better-understanding-of-the-pathogenesis-of-neuronal-respiratory-network-in-sudden-perinatal-death
#20
REVIEW
Riffat Mehboob, Mahvish Kabir, Naseer Ahmed, Fridoon Jawad Ahmad
Sudden perinatal death that includes the victims of sudden infant death syndrome, sudden intrauterine death syndrome, and stillbirth are heartbreaking events in the life of parents. Most of the studies about sudden perinatal death were reported from Italy, highlighting two main etiological factors: prone sleeping position and smoking. Other probable contributory factors are prematurity, male gender, lack of breastfeeding, respiratory tract infections, use of pacifiers, infant botulism, extensive use of pesticides and insecticides, etc...
2017: Frontiers in Neurology
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