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https://www.readbyqxmd.com/read/28927203/diagnostic-imaging-and-invasive-fungal-diseases-in-children
#1
Aspasia Katragkou, Brian T Fisher, Andreas H Groll, Emmanuel Roilides, Thomas J Walsh
Invasive fungal disease (IFD) is a life-threatening condition, especially in immunocompromised children. The role of diagnostic imaging in children at risk for an IFD is multifactorial, including initially detecting it, evaluating for dissemination of infection beyond the primary site of disease, monitoring the response to antifungal therapy, and assessing for potential relapse. The objective of this review was to synthesize the published literature relevant to the use of various imaging modalities for the diagnosis and management of IFD in children...
September 1, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28927200/epidemiology-of-invasive-fungal-disease-in-children
#2
Zoi Dorothea Pana, Emmanuel Roilides, Adilia Warris, Andreas H Groll, Theoklis Zaoutis
Considerable progress has been made in the prevention, diagnosis, and management of pediatric patients with invasive fungal disease (IFD). The reported decreasing trend in the incidence of invasive candidiasis (IC) over the past 15 years in both neonates and children has been encouraging. Nevertheless, due to the growing number of immunocompromised children at risk for IFD, this disease continues to be associated with significant morbidity and death and with increased financial burden to the health care system...
September 1, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28926489/high-levels-of-morbidity-and-mortality-among-pediatric-hematopoietic-cell-transplant-recipients-with-severe-sepsis-insights-from-the-sepsis-prevalence-outcomes-and-therapies-international-point-prevalence-study
#3
Robert B Lindell, Shira J Gertz, Courtney M Rowan, Jennifer McArthur, Florian Beske, Adrian Plunkett, Scott L Weiss, Neal J Thomas, Vinay M Nadkarni, Julie C Fitzgerald
OBJECTIVES: Pediatric severe sepsis is a major cause of morbidity and mortality worldwide, and hematopoietic cell transplant patients represent a high-risk population. We assessed the epidemiology of severe sepsis in hematopoietic cell transplant patients, describing patient outcomes compared with children with no history of hematopoietic cell transplant. DESIGN: Secondary analysis of the Sepsis PRevalence, OUtcomes, and Therapies point prevalence study, comparing demographics, sepsis etiology, illness severity, organ dysfunction, and sepsis-related treatments in patients with and without hematopoietic cell transplant...
September 16, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28925576/is-there-an-increased-risk-of-cervical-neoplasia-in-atopic-dermatitis-patients-treated-with-oral-immunosuppressive-drugs
#4
F M Garritsen, R H M Verheijen, C G Gerestein, A D van Zuilen, J A F Oosterhaven, M van Dijk, C A F Bruijnzeel-Koomen, M L Schuttelaar, M S de Bruin-Weller
BACKGROUND: Oral immunosuppressive drugs are frequently prescribed in young women with atopic dermatitis (AD). Immunocompromised patients may have a higher risk of developing high risk HPV infections, CIN and cervical carcinoma. Most literature on patients using oral immunosuppressive drugs is available in organ transplant patients. Literature on the risk of developing cervical carcinoma in AD patients treated with oral immunosuppressive drugs is lacking. At this moment there is no clear guideline/consensus on this topic, but in daily practice, questions arise concerning whether this risk is increased and whether more intensive screening in women using immunosuppressive drugs should take place...
September 19, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28924368/the-effects-of-perioperative-anesthesia-and-analgesia-on-immune-function-in-patients-undergoing-breast-cancer-resection-a-prospective-randomized-study
#5
Jin Sun Cho, Mi-Hyang Lee, Seung Il Kim, Seho Park, Hyung Seok Park, Ein Oh, Jong Ho Lee, Bon-Nyeo Koo
Introduction: Perioperative anesthesia and analgesia exacerbate immunosuppression in immunocompromised cancer patients. The natural killer (NK) cell is a critical part of anti-tumor immunity. We compared the effects of two different anesthesia and analgesia methods on the NK cell cytotoxicity (NKCC) in patients undergoing breast cancer surgery. Methods: Fifty patients undergoing breast cancer resection were randomly assigned to receive propofol-remifentanil anesthesia with postoperative ketorolac analgesia (Propofol-ketorolac groups) or sevoflurane-remifentanil anesthesia with postoperative fentanyl analgesia (Sevoflurane-fentanyl group)...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28924031/cytoplasmic-copper-detoxification-in-salmonella-can-contribute-to-sodc-metalation-but-is-dispensable-during-systemic-infection
#6
Luke A Fenlon, James M Slauch
Salmonella Typhimurium is a leading cause of foodborne disease worldwide. Severe infections result from the ability of S. Typhimurium to survive within host immune cells, despite being exposed to various host antimicrobial factors. SodCI, a copper-zinc cofactored superoxide dismutase, is required to defend against phagocytic superoxide. SodCII, an additional periplasmic superoxide dismutase, although produced during infection, does not function in the host. Previous studies suggested that CueP, a periplasmic copper binding protein, facilitates acquisition of copper by SodCII...
September 18, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28923776/prostate-cancer-xenografts-and-hormone-induced-prostate-carcinogenesis
#7
REVIEW
Dalton T McLean, Douglas W Strand, William A Ricke
Despite the advancement of transgenic and gene knockout animal models in the prostate cancer research, there is still a need for utilizing xenograft models. Xenografts can be grown in multiple sites/organs within immunocompromised animals such as mice and rats. Although prostate xenografts have been derived from many species, human cells and tissues are the most commonly used due to their potential clinical significance. Xenograft models that progress from one state or stage to another are commonly used to address important scientific questions including malignant transformation, metastatic spread, and castration resistance...
September 8, 2017: Differentiation; Research in Biological Diversity
https://www.readbyqxmd.com/read/28923373/outbreak-of-burkholderia-cepacia-bacteraemia-in-a-tertiary-care-centre-due-to-contaminated-ultrasound-probe-gel
#8
Rehab Abdelfattah, Suliman Aljumaah, Ahmed Alqahtani, Sahar Althawadi, Irene Barron, Saleh Almofada
BACKGROUND: Burkholderia cepacia is a significant opportunistic organism in hospitalized and immunocompromised patients, particularly in cystic fibrosis [1] AIMS: We describe the epidemiological investigation of an outbreak of B. cepacia bacteraemia. METHODS: The study examined 14 patients during their admission to three ICUs (Intensive Care Units) in a tertiary care hospital between January-June 2016. The outbreak involved 9 (57%) female and 6 (43%) male patients...
September 15, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28923072/a-childhood-onset-intestinal-toxemia-botulism-during-chemotherapy-for-relapsed-acute-leukemia
#9
Noriko Ohyama, Michiko Torio, Kentaro Nakashima, Yuuki Koga, Shunsuke Kanno, Hisanori Nishio, Kei Nishiyama, Momoko Sasazuki, Haru Kato, Hiroshi Asakura, Satoshi Akamine, Masafumi Sanefuji, Yoshito Ishizaki, Yasunari Sakai, Shouichi Ohga
BACKGROUND: Botulism is a potentially fatal infection characterized by progressive muscle weakness, bulbar paralysis, constipation and other autonomic dysfunctions. A recent report suggested that cancer chemotherapy might increase the risk for the intestinal toxemia botulism in both adults and children. CASE PRESENTATION: We report a 5-year-old boy, who developed general muscle weakness, constipation, ptosis and mydriasis during the third induction therapy for relapsed acute myeloid leukemia...
September 18, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28922488/isolation-of-rhodotorula-mucilaginosa-from-blood-cultures-in-a-tertiary-care-hospital
#10
Iker Falces-Romero, Emilio Cendejas-Bueno, María Pilar Romero-Gómez, Julio García-Rodríguez
BACKGROUND: Rhodotorula species have traditionally been considered as one of common non-virulent environmental inhabitant. They have emerged as an opportunistic pathogen, particularly in immunocompromised hosts and most infections have been associated with intravenous catheters in these patients. OBJECTIVE: We review the isolates in blood cultures of Rhodotorula mucilaginosa in our Hospital. We describe the demographic and clinical features of the cases and the antifungal susceptibility profiles of the isolates...
September 18, 2017: Mycoses
https://www.readbyqxmd.com/read/28922324/biological-properties-and-therapeutic-value-of-cryopreserved-fat-tissue
#11
Takanobu Mashiko, Szu-Hsien Wu, Koji Kanayama, Rintaro Asahi, Takako Shirado, Masanori Mori, Ataru Sunaga, Shunji Sarukawa, Hirokazu Uda, Kotaro Yoshimura
BACKGROUND: Fat grafting frequently requires multiple treatments and thus repeated liposuction to achieve treatment goals. The purpose of this study is to evaluate whether cryopreservation of adipose tissue may facilitate future fat grafting. METHODS: Lipoaspirates were harvested from six adult females and preserved using two cryopreservation methods: 1) simple cooling to -80˚C (cryo-1); or 2) programmed cooling to -190˚C (cryo-2). Fresh fat, cryo-1 fat, and cryo-2 fat were analyzed both in vitro and in vivo...
September 14, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28922285/what-where-and-why-exploring-fluorodeoxyglucose-pet-s-ability-to-localise-and-differentiate-infection-from-cancer
#12
Abby Douglas, Eddie Lau, Karin Thursky, Monica Slavin
PURPOSE OF REVIEW: To review the utility of FDG-PET imaging in detecting the cause of fever and infection in patients with cancer. RECENT FINDINGS: FDG-PET has been shown to have high sensitivity and accuracy for causes of neutropenic fever, leading to higher diagnostic certainty in this group. Recent advances in pathogen-specific labelling in PET to identify Aspergillus spp. and Yersinia spp. infections in mice, as well as differentiating between Gram-positive, Gram-negative and mycobacterial infections are promising...
September 15, 2017: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/28919635/aspergillus-fumigatus-morphology-and-dynamic-host-interactions
#13
REVIEW
Frank L van de Veerdonk, Mark S Gresnigt, Luigina Romani, Mihai G Netea, Jean-Paul Latgé
Aspergillus fumigatus is an environmental filamentous fungus that can cause life-threatening disease in immunocompromised individuals. The interactions between A. fumigatus and the host environment are dynamic and complex. The host immune system needs to recognize the distinct morphological forms of A. fumigatus to control fungal growth and prevent tissue invasion, whereas the fungus requires nutrients and needs to adapt to the hostile environment by escaping immune recognition and counteracting host responses...
September 18, 2017: Nature Reviews. Microbiology
https://www.readbyqxmd.com/read/28918971/-pulmonary-nocardiosis-with-cerebral-abscesses-mimicking-metastatic-lung-cancer-three-cases-and-a-review-of-literature
#14
A Fourrier, M Kerjouan, C Piau, P A Lentz, C Ricordel, H Léna, R Corre, B Desrues, S Jouneau
Nocardiosis is an infectious disease with wide range of clinical features, which can eventually lead to death. The agent responsible belongs to the genus Nocardia that includes about fifty different species. Nocardiosis occurs mainly in immunocompromised hosts. We report here three cases of disseminated nocardiosis misdiagnosed initially as cerebral metastatic lung cancer. These patients, including two immunocompetent hosts, presented with both pulmonary and cerebral lesions. In all three patients, the diagnosis was based on magnetic resonance imaging with diffusion sequence, apparent diffusion coefficient reconstruction and neurosurgical cerebral biopsies...
September 14, 2017: Revue des Maladies Respiratoires
https://www.readbyqxmd.com/read/28918074/rapid-adenovirus-typing-method-for-species-identification
#15
Fabienne Rayne, Linda Wittkop, Clément Bader, Somar Kassab, Camille Tumiotto, Sylvie Berciaud, Harald Wodrich, Marie-Edith Lafon
Adenoviruses are characterized by a large variability, reflected by their classification in species A to G. Certain species, eg A and C, could be associated with increased clinical severity, both in immunocompetent and immunocompromised hosts suggesting that in some instances species identification provides clinically relevant information. Here we designed a novel "pVI rapid typing method" to obtain quick, simple and cost effective species assignment for Adenoviruses, thanks to combined fusion temperature (Tm) and amplicon size analysis...
September 13, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28918031/anti-adenoviral-artificial-micrornas-expressed-from-aav9-vectors-inhibit-human-adenovirus-infection-in-immunosuppressed-syrian-hamsters
#16
Katrin Schaar, Anja Geisler, Milena Kraus, Sandra Pinkert, Markian Pryshliak, Jacqueline F Spencer, Ann E Tollefson, Baoling Ying, Jens Kurreck, William S Wold, Robert Klopfleisch, Karoly Toth, Henry Fechner
Infections of immunocompromised patients with human adenoviruses (hAd) can develop into life-threatening conditions, whereas drugs with anti-adenoviral efficiency are not clinically approved and have limited efficacy. Small double-stranded RNAs that induce RNAi represent a new class of promising anti-adenoviral therapeutics. However, as yet, their efficiency to treat hAd5 infections has only been investigated in vitro. In this study, we analyzed artificial microRNAs (amiRs) delivered by self-complementary adeno-associated virus (scAAV) vectors for treatment of hAd5 infections in immunosuppressed Syrian hamsters...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28915359/presence-of-%C3%AE-lactamase-encoding-genes-in-burkholderia-cepacia-complex-isolated-from-soil
#17
João Pedro Rueda Furlan, Danilo Garcia Sanchez, Ana Lúcia Fachin, Eliana Guedes Stehling
Burkholderia cepacia complex has emerged as an important opportunistic bacteria group for immunocompromised patients, and it has a high level of intrinsic resistance for different antibiotic classes. Hydrolysis of β-lactam antibiotics by β-lactamases is the most common resistance mechanism in Gram-negative bacteria, and the presence of such enzymes complicates the selection of appropriate therapy. This study aimed at investigating the antimicrobial resistance profile and the presence of β-lactamase encoding genes in B...
September 15, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28914348/immunogenicity-and-antimicrobial-effectiveness-of-pseudomonas-aeruginosa-specific-bacteriophage-in-a-human-lung-in-vitro-model
#18
Joseph R Shiley, Kristen K Comfort, Jayne B Robinson
The rise of antibiotic resistant bacteria is posing a serious threat to human health. For example, resistant strains of Pseudomonas aeruginosa have resulted in untreatable and potentially lethal infections in both cystic fibrosis and immunocompromised patients. Due to the growing need for alternative treatment options, bacteriophage, or phage, therapy is gaining considerable attention. While previous studies have demonstrated the effectiveness of phage in combating persistent bacterial infections, there is currently a lack of knowledge regarding the host immunological response following phage exposure...
September 15, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28912984/caecal-perforation-from-primary-intestinal-tuberculosis-in-pregnancy
#19
Soe Lwin, Nina Lau Lee Jing, Haris Suharjono, Mardiana Binti Kipli, Tin Moe Nwe, Myat San Yi, Lucas Luk Tien Wee
The incidence of tuberculosis (TB) is rising worldwide, despite the efficacy of the BCG vaccination. Populations at greatest risk of contracting TB are migrant communities, as well as immunocompromised individuals. The diagnosis of extrapulmonary TB (EPTB) can often present as a diagnostic conundrum, due to its nonspecific and varied presentation, often mimicking inflammatory bowel disease or malignancy. We present a case of caecal TB in pregnancy, which resulted in caecal perforation, a right hemicolectomy, and severe preterm delivery...
2017: Case Reports in Gastrointestinal Medicine
https://www.readbyqxmd.com/read/28912980/sporotrichoid-like-spread-of-cutaneous-mycobacterium-chelonae-in-an-immunocompromised-patient
#20
Daria Marley Kemp, Anusha G Govind, Jun Kang, Caroline C Brugger, Young C Kauh
Mycobacterium chelonae is a rapidly growing mycobacterium found in water and soil that can cause local cutaneous infections in immunocompetent hosts but more frequently affects immunocompromised patients. Typically, patients will present with painful subcutaneous nodules of the joints or soft tissues from traumatic inoculation. However, exhibiting a sporotrichoid-like pattern of these nodules is uncommon. Herein, we report a case of sporotrichoid-like distribution of cutaneous Mycobacterium chelonae in a patient with systemic lupus erythematosus on significant immunosuppressive medications...
2017: Case Reports in Dermatological Medicine
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