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https://www.readbyqxmd.com/read/28544856/recent-advances-in-connective-tissue-disease-related-interstitial-lung-disease
#1
Atsushi Suzuki, Yasuhiro Kondoh, Aryeh Fischer
Interstitial lung disease (ILD) is a common manifestation of connective tissue disease (CTD). Although the majority of patients with CTD-ILD are stable or slowly progressive, a significant group exhibits a more severe and progressive decline. Interstitial pneumonia with autoimmune features (IPAF) describes the subset of patients with interstitial pneumonia who have features suggesting underlying autoimmunity, but whose features fall short of a clear diagnosis of CTD. Areas covered: In this focused review, we discuss recent advances in early detection, prognostic evaluation, and management of autoimmune forms of ILD...
May 25, 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/28543859/pustular-erythema-multiforme-major-associated-with-atypical-pneumonia
#2
R Wolf, S Ständer, O Well, L Frey, I Klier, S Brunner, M Flaig, A Wollenberg, T Ruzicka
A 52-year-old male patient presented to the hospital with severe difficulties swallowing, sore eyes and an asymptomatic skin rash. The patient was fully oriented, vital signs were normal. Two days before admission to the hospital, the referring physician had suspected an upper respiratory tract infection and had started treatment with oral cefuroxime while also prescribing ibuprofen for sore throat. This article is protected by copyright. All rights reserved.
May 23, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28543165/recognition-of-early-mortality-in-multiple-myeloma-by-a-prediction-matrix
#3
Howard Terebelo, Shankar Srinivasan, Mohit Narang, Rafat Abonour, Cristina Gasparetto, Kathleen Toomey, James W Hardin, Gail Larkins, Amani Kitali, Robert M Rifkin, Jatin J Shah
Early mortality (EM; death ≤ 6 months from diagnosis) has been reported in several newly diagnosed multiple myeloma (NDMM) trials. Before the era of novel agents, the incidence was 10%-14%. Causes of death included infections/pneumonia, renal failure, refractory disease, and cardiac events. Staging systems, such as the revised International Staging System (r-ISS), and prognostic factors including cytogenetics, lactate dehydrogenase levels, and myeloma-specific factors, are useful to assess overall prognosis; however, they cannot predict EM...
May 24, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28542496/zinc-blocks-sos-induced-antibiotic-resistance-via-inhibition-of-reca-in-escherichia-coli
#4
Bryan E Bunnell, Jillian F Escobar, Kirsten L Bair, Mark D Sutton, John K Crane
Zinc inhibits the virulence of diarrheagenic E. coli by inducing the envelope stress response and inhibiting the SOS response. The SOS response is triggered by damage to bacterial DNA. In Shiga-toxigenic E. coli, the SOS response strongly induces the production of Shiga toxins (Stx) and of the bacteriophages that encode the Stx genes. In E. coli, induction of the SOS response is accompanied by a higher mutation rate, called the mutator response, caused by a shift to error-prone DNA polymerases when DNA damage is too severe to be repaired by canonical DNA polymerases...
2017: PloS One
https://www.readbyqxmd.com/read/28542162/carbapenem-resistant-klebsiella-pneumoniae-in-barbados-driving-change-in-practice-at-the-national-level
#5
Corey Forde, Bryan Stierman, Pilar Ramon-Pardo, Thais Dos Santos, Nalini Singh
INTRODUCTION: Carbapenem-resistant Klebsiella pneumoniae (CRKP) is of growing concern globally. The risk for transmission of antimicrobial resistant organisms across several continents to the Caribbean is a real one given its tourism industry. After a cluster of cases of CRKP were detected, several studies detailed in this report were initiated to better characterize the problem. METHODS: A hospital-wide point prevalence study and active surveillance were performed at Queen Elizabeth Hospital (QEH) in Barbados in 2013 to assess the prevalence of CRKP infection/colonization...
2017: PloS One
https://www.readbyqxmd.com/read/28540732/mouse-model-of-colonization-of-the-digestive-tract-with-acinetobacter-baumannii-and-subsequent-pneumonia
#6
Noémie Coron, Silvie Pavlickova, Angélique Godefroy, Hélène Pailhoriès, Marie Kempf, Viviane Cassisa, Laurent Marsollier, Estelle Marion, Marie-Laure Joly-Guillou, Matthieu Eveillard
AIM: Implementing a mouse model of Acinetobacter baumannii (AB) digestive colonization and studying the propensity of an intestinal reservoir of AB to be at the origin of pneumonia. MATERIALS & METHODS: After a disruption of the digestive flora by piperacillin-tazobactam, two multidrug-resistant AB strains were intranasally inoculated to two cohorts of ten mice daily. For each strain, five mice were rendered transiently neutropenic. RESULTS & CONCLUSION: One strain persisted several weeks in the digestive tract, even after stopping piperacillin-tazobactam injections, leading to the hypothesis that some AB strains can authentically colonize the gut...
May 25, 2017: Future Microbiology
https://www.readbyqxmd.com/read/28540205/clinicopathological-spectrum-of-snake-bite-induced-acute-kidney-injury-from-india
#7
Sanjay Vikrant, Ajay Jaryal, Anupam Parashar
AIM: To study the clinico-pathological spectrum of snake bite-induced acute kidney injury (AKI). METHODS: A retrospective study of patients admitted at Indira Gandhi Medical College Hospital, Shimla with snake bite-induced AKI from July 2003 to June 2016. Medical records were evaluated for patient's information on demographic, clinical characteristics, complications and outcome. Outcomes of duration of hospital stay, requirement for intensive care unit support, treatment with dialysis, survival and mortality were analyzed...
May 6, 2017: World Journal of Nephrology
https://www.readbyqxmd.com/read/28539639/the-absence-of-interferon-%C3%AE-promotor-stimulator-1-ips-1-predisposes-to-bronchiolitis-and-asthma-like-pathology-in-response-to-pneumoviral-infection-in-mice
#8
Jennifer Simpson, Jason P Lynch, Zhixuan Loh, Vivian Zhang, Rhiannon B Werder, Kirsten Spann, Simon Phipps
Respiratory syncytial virus (RSV)-bronchiolitis is a major cause of infant morbidity and mortality and a risk factor for subsequent asthma. We showed previously that toll-like receptor (TLR)7 in plasmacytoid dendritic cells (pDCs) is critical for protection against bronchiolitis and asthma in mice infected with pneumonia virus of mice (PVM), the mouse homolog of RSV. This lack of redundancy was unexpected as interferon-β promotor stimulator-1 (IPS-1) signalling, downstream of RIG-I-like receptor (RLR) and not TLR7 activation, contributes to host defence in hRSV-inoculated adult mice...
May 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28539503/mycoplasma-pneumoniae-from-the-respiratory-tract-and-beyond
#9
REVIEW
Ken B Waites, Li Xiao, Yang Liu, Mitchell F Balish, T Prescott Atkinson
Mycoplasma pneumoniae is an important cause of respiratory tract infections in children as well as adults that can range in severity from mild to life-threatening. Over the past several years there has been much new information published concerning infections caused by this organism. New molecular-based tests for M. pneumoniae detection are now commercially available in the United States, and advances in molecular typing systems have enhanced understanding of the epidemiology of infections. More strains have had their entire genome sequences published, providing additional insights into pathogenic mechanisms...
July 2017: Clinical Microbiology Reviews
https://www.readbyqxmd.com/read/28538622/towards-precision-medicine-accurate-predictive-modeling-of-infectious-complications-in-combat-casualties
#10
Christopher J Dente, Matthew Bradley, Seth Schobel, Beverly Gaucher, Timothy Buchman, Allan D Kirk, Eric Elster
BACKGROUND: The biomarker profile of trauma patients may allow for the creation of models to assist bedside decision making & prediction of complications. We sought to determine the utility of modeling in the prediction of bacteremia & pneumonia in combat casualties. METHODS: This is a prospective, observational trial of patients with complex wounds treated at Walter Reed National Military Medical Center (2007-2012). Tissue, serum and wound effluent samples were collected during operative interventions until wound closure...
May 22, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28538606/assessing-severity-in-pediatric-pneumonia-predictors-of-the-need-for-major-medical-interventions
#11
Are Stuwitz Berg, Christopher Stephen Inchley, Hans Olav Fjaerli, Truls Michael Leegaard, Britt Nakstad
OBJECTIVE: The aim of this study was to determine potential predictors of the need for major medical interventions in the context of assessing severity in pediatric pneumonia. METHODS: This was a prospective, cohort study of previously healthy children and adolescents younger than 18 years presenting to the pediatric emergency room with clinically suspected pneumonia and examining both the full cohort and those with radiologically confirmed pneumonia. The presence of hypoxemia (peripheral oxygen saturation ≤92%), age-specific tachypnea, high temperature (≥38...
May 23, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28537494/survival-from-traumatic-injury-does-not-end-at-hospital-discharge-hospital-acquired-infections-increase-post-discharge-mortality
#12
Nitasha Dhiman, Ram C Rimal, Mark Hamill, Katie M Love, Daniel Lollar, Bryan Collier
BACKGROUND: Hospital-acquired infections (HAI) in trauma patients increase inpatient morbidity and mortality. However, their impact on long-term mortality is not well understood. PATIENTS AND METHODS: A retrospective trauma registry analysis of all patients admitted to an academic level I trauma center between July 1, 2008 and December 31, 2012 was performed. Patients included survived to discharge and were 18 years of age or older. Age, gender, Injury Severity Score (ISS), ventilator use, history of chronic obstructive pulmonary disease (COPD), and HAI were reviewed...
May 24, 2017: Surgical Infections
https://www.readbyqxmd.com/read/28536432/nuclear-translocation-of-hif-1%C3%AE-induced-by-influenza-a-h1n1-infection-is-critical-to-the-production-of-proinflammatory-cytokines
#13
Xinkun Guo, Zhaoqin Zhu, Wanju Zhang, Xiaoxiao Meng, Yong Zhu, Peng Han, Xiaohui Zhou, Yunwen Hu, Ruilan Wang
Infection with the influenza A (H1N1) virus is a major challenge for public health because it can cause severe morbidity and even mortality in humans. The over-secretion of inflammatory cytokines (cytokine storm) is considered to be a key contributor to the severe pneumonia caused by H1N1 infection. It has been reported that hypoxia-inducible factor 1-alpha (HIF-1α) is associated with the production of proinflammatory molecules, but whether HIF-1α participates in the acute inflammatory responses against H1N1 infection is still unclear...
May 24, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28536249/bronchial-inflammation-and-bacterial-load-in-stable-copd-is-associated-with-tlr4-overexpression
#14
Antonino Di Stefano, Fabio L M Ricciardolo, Gaetano Caramori, Ian M Adcock, Kian Fan Chung, Peter J Barnes, Paola Brun, Andrea Leonardi, Filippo Andò, Davide Vallese, Isabella Gnemmi, Luisella Righi, Francesco Cappello, Bruno Balbi
Toll-like receptors (TLRs) and nucleotide-binding oligomerisation domain (NOD)-like receptors (NLRs) are two major forms of innate immune sensors but their role in the immunopathology of stable chronic obstructive pulmonary disease (COPD) is incompletely studied. Our objective here was to investigate TLR and NLR signalling pathways in the bronchial mucosa in stable COPD.Using immunohistochemistry, the expression levels of TLR2, TLR4, TLR9, NOD1, NOD2, CD14, myeloid differentiation primary response gene 88 (MyD88), Toll-interleukin-1 receptor domain-containing adaptor protein (TIRAP), and the interleukin-1 receptor-associated kinases phospho-IRAK1 and IRAK4 were measured in the bronchial mucosa of subjects with stable COPD of different severity (n=34), control smokers (n=12) and nonsmokers (n=12)...
May 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28533998/ipilimumab-as-a-cause-of-severe-pan-colitis-and-colonic-perforation
#15
Raj Shah, Danielle Witt, Talal Asif, Fahad F Mir
Ipilimumab is a human monoclonal antibody that functions as a cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4) inhibitor that is used to treat malignant melanoma. Due to ipilimumab's removal of immune regulation, specifically through the inactivation of CTLA-4, it is commonly associated with inflammatory and autoimmune events. Gastrointestinal (GI) related immune-related adverse events such as diarrhea occur in 29% of patients with 7.6% of patients specifically suffering from colitis. We describe a case of colonic perforation with ipilimumab use...
April 20, 2017: Curēus
https://www.readbyqxmd.com/read/28533471/the-atypical-response-regulator-atvr-is-a-new-player-in-pseudomonas-aeruginosa-response-to-hypoxia-and-virulence
#16
Gilberto Hideo Kaihami, Leandro Carvalho Dantas Breda, José Roberto Fogaça de Almeida, Thays de Oliveira Pereira, Gianlucca Gonçalves Nicastro, Ana Laura Boechat, Sandro Rogério de Almeida, Regina Lúcia Baldini
Two-component systems are widespread in bacteria, allowing adaptation to environmental changes. The classical pathway is composed by a histidine kinase that phosphorylates an aspartate residue in the cognate response regulator (RR). RRs lacking the phosphorylable aspartate also occur, but their function and contribution during host-pathogen interaction are poorly characterized. AtvR (PA14_26570) is the only atypical response regulator with a DNA-binding domain in the opportunistic pathogen Pseudomonas aeruginosa Macrophage infection with the atvR mutant strain resulted in higher TNF-α secretion as well as increased bacterial clearance as compared to macrophages infected with the wild-type strain...
May 22, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28532813/genetics-and-biological-property-analysis-of-korea-lineage-of-influenza-a-h9n2-viruses
#17
Min Kang, Hyung-Kwan Jang
H9N2 influenza viruses have been detected from wild and domestic avian species including chickens and ducks worldwide. Few studies have compared the biological properties of different H9N2 lineages or determined whether certain lineages might pose a higher risk to mammals, especially H9N2 viruses of Korean lineage. The objective of this study was to characterize the genetic and biological properties of 22 Korean H9N2 viruses and assess their potential risks to mammals. Their complete genomes were analyzed. Some Korean H9N2 viruses were found to carry mammalian host-specific mutations...
May 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28531301/a-political-case-of-penetrating-cranial-trauma-the-injury-of-james-scott-brady
#18
Richard Menger, Piyush Kalakoti, Rimal Hanif, Osama Ahmed, Anil Nanda, Bharat Guthikonda
James Brady, the White House press secretary during President Ronald Reagan's first term in office, was 1 of 4 people (including the President) wounded during an attempted assassination attempt on President Reagan's life on March 30, 1981. John Hinckley, Jr. was found not guilty of this attempt by reason of insanity. The assassination attempt was a ploy by Hinckley, Jr. to impress the actress Jodie Foster. Brady was the most seriously injured of the 4 who were wounded. He suffered a gunshot wound to the left forehead that traveled through the left frontal lobe, corpus callosum, and then into the right frontal and temporal lobes...
May 22, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28530140/associations-of-nasopharyngeal-metabolome-and-microbiome-with-severity-among-infants-with-bronchiolitis-a-multi-omic-analysis
#19
Christopher J Stewart, Jonathan M Mansbach, Matthew C Wong, Nadim J Ajami, Joseph F Petrosino, Carlos A Camargo, Kohei Hasegawa
RATIONALE: Bronchiolitis is the most common lower respiratory infection in infants; however, it remains unclear which infants with bronchiolitis will develop severe illness. In addition, while emerging evidence indicates associations of the upper-airway microbiome with bronchiolitis severity, little is known about the mechanisms linking airway microbes and host response to disease severity. OBJECTIVES: To determine the relations among the nasopharyngeal airway metabolome profiles, microbiome profiles, and severity in infants with bronchiolitis...
May 21, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28529273/septicemic-invasive-klebsiella-pneumoniae-infection-in-a-cynomolgus-monkey-macaca-fascicularis-with-severe-diffused-suppurative-meningoencephalitis
#20
Kazufumi Kasuya, Kou Takayama, Makiko Bito, Natsumi Shimokubo, Ryosuke Kawashima, Tomoyuki Shibahara
A 2-year-old male cynomolgus monkey (Macaca fascicularis) showed neurological symptoms during quarantine for importation into Japan, and was euthanized due to poor prognosis. Gross anatomical examination revealed a hemorrhagic lesion around the lateral ventricle in the cerebrum. Histologically, severe diffused suppurative meningitis and ventriculitis were detected with numerous Gram-negative bacilli in the cerebrum. Immunohistochemically, the bacilli were positively stained with an antibody against Klebsiella pneumoniae...
May 22, 2017: Journal of Veterinary Medical Science
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