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Oral infections

Hyuck Jun Jung, Myoung Jin Ho, Sungwan Ahn, Young Taek Han, Myung Joo Kang
The oral bioavailability of entecavir (EV), an anti-viral agent commonly prescribed to treat hepatitis B infections, is drastically reduced under a post-prandial state. This is primarily due to its low permeability in the gastrointestinal tract. To reduce the food effect on the intestinal absorption of the nucleotide analogue, four lipidic prodrugs were synthesized via the esterification of the primary alcohol of EV with fatty acids (hexanoic acid, octanoic acid, decanoic acid, and dodecanoic acid). EV-3-dodecanoate (or EV-C12) exhibited high solubility in a fed state simulated intestinal fluid (78...
March 22, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Octavia Ramayanti, Mitch Brinkkemper, Sandra A W M Verkuijlen, Leni Ritmaleni, Mei Lin Go, Jaap M Middeldorp
Epstein-Barr virus (EBV) persists in nasopharyngeal (NPC) and gastric carcinomas (EBVaGC) in a tightly latent form. Cytolytic virus activation (CLVA) therapy employs gemcitabine and valproic acid (GCb+VPA) to reactivate latent EBV into the lytic phase and antiviral valganciclovir to enhance cell death and prevent virus production. CLVA treatment has proven safe in phase-I/II trials with promising clinical responses in patients with recurrent NPC. However, a major challenge is to maximize EBV lytic reactivation by CLVA...
March 22, 2018: Cancers
Khalea Hayward, Abigail Cline, Angela Stephens, Linda Street
An infection with the varicella-zoster virus (VZV) causes both varicella and herpes zoster (HZ). Although rare, the development of HZ does occur during pregnancy. Maternal HZ does not result in increased foetal mortality, and the passage of VZV to the foetus rarely occurs. However, HZ does increase maternal morbidity. Upon infection with HZ, patients typically present with a viral prodrome preceding the appearance of the characteristic zoster rash. HZ is usually diagnosed clinically by the zoster rash, but can also be confirmed by a polymerase chain reaction and an enzyme-linked immunosorbent assay...
March 22, 2018: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
Kunyuan Tie, Yuyu Yuan, Shiqing Yan, Xi Yu, Qiuyang Zhang, Huihui Xu, Yang Zhang, Jingmin Gu, Changjiang Sun, Liancheng Lei, Wenyu Han, Xin Feng
Salmonella pullorum is the major pathogen that is harmful to the poultry industry in developing countries, and the treatment of chicken diarrhea caused by S. pullorum has become increasingly difficult. In this study, a virulent bacteriophage YSP2, which was able to specifically infect Salmonella, was isolated and characterized. Phage YSP2 was classified in the Siphoviridae family and had a short latent period of 10 min. No bacterial virulence- or lysogenesis-related ORF is present in the YSP2 genome, making it eligible for use in phage therapy...
March 21, 2018: Virus Genes
Spenser Y Chen, Scott R Ceresnak, Kara S Motonaga, Anthony Trela, Debra Hanisch, Anne M Dubin
Cardiac implantable electronic device (CIED) infections are associated with significant morbidity in the pediatric device population, with a tenfold higher risk of infection in children compared to adults. The 2010 American Heart Association (AHA) guidelines recommend a single dose of systemic antibiotic (ABX) prophylaxis prior to CIED implantation and no post-operative (OP) ABX. However, there is limited data regarding adherence to this recommendation among the pediatric community. To assess current clinical practices for CIED ABX prophylaxis in pediatrics; whether the AHA guidelines are being followed; and if not, the reasons for non-adherence...
March 22, 2018: Pediatric Cardiology
Arzu Karlı, Gülnar Şensoy, Şule Paksu, Muhammet Furkan Korkmaz, Ömer Ertuğrul, Rıfat Karlı
Purpose: Tularemia is an infection caused by Francisella tularensis . Its diagnosis and treatment may be difficult in many cases. The aim of this study was to evaluate treatment modalities for pediatric tularemia patients who do not respond to medical treatment. Methods: A single-center, retrospective study was performed. A total of 19 children with oropharyngeal tularemia were included. Results: Before diagnosis, the duration of symptoms in patients was 32...
February 2018: Korean Journal of Pediatrics
Neeraj Kumar Tulara
Urinary tract infection (UTI) is a common and painful human illness that, unfortunately not responsive to commonly used antibiotics in current practice. The role of fosfomycin and nitrofurantoin in the era of growing bacteria resistance has been widely discussed. In this study, we aimed to know the local antimicrobial susceptibilities, fosfomycin and nitrofurantoin susceptibility in particular, for urinary extended-spectrum-beta-lactamase-producing Escherichia coli and Escherichia pneumoniae (ESBL-EC and ESBL-KP) isolates in our hospital...
January 2018: Journal of Global Infectious Diseases
Anna Julkunen, Anna Maria Heikkinen, Birgitta Söder, Per-Östen Söder, Sanna Toppila-Salmi, Jukka H Meurman
Oral infections up-regulate a number of systemic inflammatory reactions that, in turn, play a role in the development of systemic diseases. We investigated the association between oral health and autoimmune diseases in a cohort of Swedish adults. Hypothesis was that poor oral health associates with incidence of autoimmune diseases. Overall 1676 subjects aged 30-40 years old from Stockholm County (Sweden) participated in this study in 1985. Subjects were randomly selected from the registry file of Stockholm region and were followed-up for 30 years...
December 22, 2017: Dent J (Basel)
Jerold Jeyaratnam, Nienke M Ter Haar, Helen J Lachmann, Ozgur Kasapcopur, Amanda K Ombrello, Donato Rigante, Fatma Dedeoglu, Ezgi H Baris, Sebastiaan J Vastert, Nico M Wulffraat, Joost Frenkel
BACKGROUND: Withholding live-attenuated vaccines in patients using interleukin (IL)-1 or IL-6 blocking agents is recommended by guidelines for both pediatric and adult rheumatic diseases, since there is a risk of infection in an immune suppressed host. However, this has never been studied. This retrospective, multicenter survey aimed to evaluate the safety of live-attenuated vaccines in patients using IL-1 or IL-6 blockade. METHODS: We contacted physicians involved in the treatment of autoinflammatory diseases to investigate potential cases...
March 21, 2018: Pediatric Rheumatology Online Journal
Sowmya Kaimal, Jithendriya Madhukara
AIM: To collect data pertaining to oral drug provocation testing (DPT) in hospitalized patients with antiretroviral (ARV)/antitubercular agent-induced rashes. METHODS: Patients with cutaneous adverse drug reactions (ADRs) to ARV/antitubercular drugs and who underwent oral DPT during a 5-year period were included in this study. RESULTS: Data were collected from the records of 21 patients. Of the 21, 19 had HIV infection. The most commonly implicated drug was nevirapine (NVP), followed by cotrimoxazole and antitubercular agents...
January 2018: Journal of the International Association of Providers of AIDS Care
Marina Macedo-Viñas, David W Denning
We aimed to estimate for the first time the burden of fungal infections in Uruguay. Data on population characteristics and underlying conditions were extracted from the National Statistics Institute, the World Bank, national registries, and published articles. When no data existed, risk populations were used to estimate frequencies extrapolating from the literature. Population structure (inhabitants): total 3,444,006; 73% adults; 35% women younger than 50 years. Size of populations at risk (total cases per year): HIV infected 12,000; acute myeloid leukemia 126; hematopoietic stem cell transplantation 30; solid organ transplants 134; COPD 272,006; asthma in adults 223,431; cystic fibrosis in adults 48; tuberculosis 613; lung cancer 1400...
March 18, 2018: Journal of Fungi (Basel, Switzerland)
N Sharma, P W Hunt, B C Hine, N K Sharma, A Chung, R A Swick, I Ruhnke
A study was conducted to determine the performance, egg quality, and liver lipid reserves of laying hens exposed to ranges contaminated with Ascaridia galli. Sixteen-week-old Lohmann Brown laying hens (n = 200) were divided into 4 treatments with 5 replicates containing 10 hens per pen. Hens of treatment 1 [negative control (NC)] ranged on a decontaminated area, and hens of treatments 2 (low infection) and 3 (medium infection) ranged on areas previously contaminated by hens artificially infected with 250 and 1,000 embryonated A...
March 16, 2018: Poultry Science
Susanna Esposito, Manuel E Soto-Martinez, Wojciech Feleszko, Marcus H Jones, Kun-Ling Shen, Urs B Schaad
PURPOSE OF REVIEW: To provide an overview of the mechanistic and clinical evidence for the use of nonspecific immunomodulators in paediatric respiratory tract infection (RTI) and wheezing/asthma prophylaxis. RECENT FINDINGS: Nonspecific immunomodulators have a long history of empirical use for the prevention of RTIs in vulnerable populations, such as children. The past decade has seen an increase in both the number and quality of studies providing mechanistic and clinical evidence for the prophylactic potential of nonspecific immunomodulators against both respiratory infections and wheezing/asthma in the paediatric population...
March 20, 2018: Current Opinion in Allergy and Clinical Immunology
Tulshidas S Patil, Ashwini S Deshpande, Shirish Deshpande, Pravin Shende
Tuberculosis (TB) is a disease caused by the pathogen Mycobacterium tuberculosis. Prolonged administration of high dose antibiotics using oral and injectable routes and their associated side effects, show limitations to successful treatment outcome of TB. Nanocarrier-based dry powder inhalers (DPIs) may provide a breakthrough as an alternative therapeutic approach because of their stable, non-invasive nature and ability to target the drug at the site of infection. The current review focuses on the roadmap of the respiratory system, drug deposition and targeting at the site of infection via pulmonary route...
March 21, 2018: Journal of Drug Targeting
Majd Tarabichi, Abtin Alvand, Noam Shohat, Karan Goswami, Javad Parvizi
A 62-year-old man who had undergone a primary knee arthroplasty 3 years earlier, presented to the emergency department with an infected prosthesis. He underwent prosthesis resection. All cultures failed to identify the infecting organism. Analysis of the intraoperative samples by next-generation sequencing revealed Streptococcus canis (an organism that resides in the oral cavity of dogs). It was later discovered that the patient had sustained a dog scratch injury several days earlier. The patient reports that his dog had licked the scratch...
March 2018: Arthroplasty Today
Afsar R Naqvi, Jennifer Shango, Alexandra Seal, Deepak Shukla, Salvador Nares
Prevalence of the members of herpesvirus family in oral inflammatory diseases is increasingly acknowledged suggesting their likely role as an etiological factor. However, the underlying mechanisms remain obscure. In our recent miRNA profiling of healthy and diseased human tooth pulps, elevated expression of human herpesvirus encoded viral microRNAs (v-miRs) were identified. Based on the fold induction and significance values, we selected three v-miRs namely miR-K12-3-3p [Kaposi sarcoma-associated virus (KSHV)], miR-H1 [herpes simplex virus 1 (HSV1)], and miR-UL-70-3p [human cytomegalovirus (HCMV)] to further examine their impact on host cellular functions...
2018: Frontiers in Immunology
Takaaki Kobayashi, Nitzy Munoz Casablanca, Matthew Harrington
We present a case of pyeloduodenal fistula in an 89-year-old woman with history of nephrolithiasis and recurrent urinary tract infection (UTI) who presented to the emergency department with back pain. CT revealed a malrotated right kidney with a large renal stone and possible fistulous connection between the second portion of the duodenum and the right renal collecting system. Technetium-99m scintigraphy confirmed presence of the fistula. The patient declined intervention and was discharged from the hospital with oral antibiotic suppressive therapy...
March 20, 2018: BMJ Case Reports
D R B Brito, L M Costa-Júnior, J L Garcia, J F J Torres-Acosta, H Louvandini, J A A Cutrim-Júnior, J F M Araújo, E D S Soares
Gastrointestinal nematodes (GINs) cause considerable economic losses in grazing goat herds. At present, GIN control cannot rely on conventional anthelmintic (AH) drugs because parasites have developed resistance against such drugs. Thus, alternative control methods are being sought to reduce the dependence on AH. Many tannin-rich plants exhibit AH activity and may be used as alternatives for GIN control. Mimosa caesalpiniifolia is a tannin-rich shrub consumed by small ruminants in Brazil. This study evaluated the in vivo AH effect of M...
March 15, 2018: Veterinary Parasitology
Elke von Son-de Fernex, Ángel Alonso-Díaz Miguel, Braulio Valles-de la Mora, Pedro Mendoza-de Gives, Epigmenio Castillo-Gallegos, Alejandro Zamilpa, Manases González-Cortazar
The aims of this study were: 1) to assess the anthelmintic effect of Gliricidia sepium on the establishment of C. punctata third-stage larvae (L3 ) in calves, and 2) to isolate and to elucidate an anti-exsheathment phytochemical from the plant offered during the trial. Twelve ¾ Holstein × Zebu calves were divided in two experimental groups: control (T1) and treatment (T2) (n = 6). After adaptation, each calf was infected with an oral dose of 400 C. punctata L3 /Kg LW. Basal diet consisted of Digitaria decumbens hay (6...
March 15, 2018: Veterinary Parasitology
Valnês S Rodrigues-Junior, Priscilla B Pail, Anne D Villela, Virgínia C A Falcão, Adílio S Dadda, Bruno L Abbadi, João B Pesquero, Diógenes S Santos, Luiz A Basso, Maria M Campos
The role, if any, played by the kinin system in tuberculosis infection models, either in vivo or in vitro, was investigated. The effects of Mycobacterium tuberculosis infection on C57BL/6 wild type, B1 R-/-, B2 R-/- and double B1 R/B2 R knockout mice were evaluated. Immunohistochemistry analysis was carried out to assess B1 R and B2 R expression in spleens and lungs of M. tuberculosis-infected mice. In addition, in vitro experiments with M. tuberculosis-infected macrophages were performed. The in vivo effects of HOE-140 and SSR240612 on the mice model of infection were also evaluated...
March 2018: Tuberculosis
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