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https://www.readbyqxmd.com/read/29133056/therapeutic-potential-of-songorine-a-diterpenoid-alkaloid-of-the-genus-aconitum
#1
REVIEW
Haroon Khan, Seyed Mohammad Nabavi, Antoni Sureda, Nikolay Mehterov, Diana Gulei, Ioana Berindan-Neagoe, Hiroaki Taniguchi, Atanas G Atanasov
Alkaloids are well-studied secondary metabolites, with recent preclinical studies evidencing that many of them exhibit anti-cancer, anti-depressant, anti-nociceptive, anti-inflammatory, anti-pyretic, anti-platelet, anti-oxidant, and anti-bacterial properties. Aconitum is a genus rich of diverse alkaloids. More than 450 alkaloids have been identified in a variety of species. Songorine is a C20 diterpenoid alkaloid and 12-keto analog of napelline, isolated from Aconitum soongaricum and was associated with a heterogeneous panel of biological functions...
November 10, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29124396/infections-and-the-risk-of-psoriatic-arthritis-among-psoriasis-patients-a-systematic-review
#2
REVIEW
Telma Thrastardottir, Thorvardur Jon Love
Psoriasis and psoriatic arthritis (PsA) are related inflammatory diseases with some shared genetic and environmental risk factors. It has been suggested that environmental factors, including infections, can trigger the development of PsA among psoriasis patients. The aim of this review was to systematically examine available data evaluating the effect of infections on the risk of developing PsA. A systematic search of the Cochrane Library, PubMed, Scopus, and Web of Science was conducted on March 16 2017, in accordance with the PRISMA statement...
November 9, 2017: Rheumatology International
https://www.readbyqxmd.com/read/29123529/t-cell-mediated-chronic-inflammatory-diseases-are-candidates-for-therapeutic-tolerance-induction-with-heat-shock-proteins
#3
REVIEW
Ariana Barbera Betancourt, Qingkang Lyu, Femke Broere, Alice Sijts, Victor P M G Rutten, Willem van Eden
Failing immunological tolerance for critical self-antigens is the problem underlying most chronic inflammatory diseases of humans. Despite the success of novel immunosuppressive biological drugs, the so-called biologics, in the treatment of diseases such rheumatoid arthritis (RA) and type 1 diabetes, none of these approaches does lead to a permanent state of medicine free disease remission. Therefore, there is a need for therapies that restore physiological mechanisms of self-tolerance. Heat shock proteins (HSPs) have shown disease suppressive activities in many models of experimental autoimmune diseases through the induction of regulatory T cells (Tregs)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29116038/borrelia-burgdorferi-glycosaminoglycan-binding-proteins-a-potential-target-for-new-therapeutics-against-lyme-disease
#4
Yi-Pin Lin, Lingyun Li, Fuming Zhang, Robert J Linhardt
The spirochete bacterium Borrelia burgdorferisensu lato is the causative agent of Lyme disease, the most common vector-borne disease in Europe and the United States. The spirochetes can be transmitted to humans via ticks, and then spread to different tissues, leading to arthritis, carditis and neuroborreliosis. Although antibiotics have commonly been used to treat infected individuals, some treated patients do not respond to antibiotics and experience persistent, long-term arthritis. Thus, there is a need to investigate alternative therapeutics against Lyme disease...
November 8, 2017: Microbiology
https://www.readbyqxmd.com/read/29102148/short-communication-effect-of-freezer-storage-time-and-thawing-method-on-the-recovery-of-mycoplasma-bovis-from-bovine-colostrum
#5
L Gille, F Boyen, L Van Driessche, B Valgaeren, F Haesebrouck, P Deprez, B Pardon
Mycoplasma bovis is an important cause of mastitis in dairy cattle, and pneumonia, arthritis, and otitis in calves. Milk and colostrum are considered important sources of infection for calves. Knowledge on the effect of on-farm freezing (-18°C) and thawing methods on the recovery of M. bovis from colostrum samples is missing. In this study, 2 separate experiments were performed. The first experiment consisted of a longitudinal study examining the survival [as measured by log(10) reduction] of 2 M. bovis strains in frozen colostrum over 14 wk...
October 25, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29091212/penetration-of-linezolid-into-synovial-fluid-and-muscle-tissue-after-elective-arthroscopy
#6
R Schwameis, S Syré, K Sarahrudi, A Appelt, D Marhofer, D Burau, C Kloft, M Zeitlinger
Objectives: Penetration of antibiotics into synovial fluid is crucial to combat septic arthritis efficiently. Since linezolid may be used for treatment of septic arthritis when methicillin-resistant bacterial strains are suspected, we investigated its target-site concentrations in synovial fluid. Patients and methods: Ten patients undergoing elective knee arthroscopy were included in this study. Subjects received a single dose of 600 mg of linezolid intravenously and linezolid concentrations were measured in plasma and by using microdialysis in muscle tissue and synovial fluid...
October 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29074430/role-of-th17-and-treg-cells-in-septic-arthritis-and-the-impact-of-the-th17-treg-derived-cytokines-in-the-pathogenesis-of-s-aureus-induced-septic-arthritis-in-mice
#7
Ipsita Dey, Biswadev Bishayi
Intravenous inoculation of Swiss mice with S. aureus leads to severe synovial joint tissue swelling along with prominent T lymphocyte infiltrate with associated inflammation in synovial tissue. Cytokines released from macrophages such as TNF-α, IL-1β and IL-6 the main players that precede cartilage and bone destruction during septic arthritis (SA) followed by osteoclast differentiation and bone resorption. CD4(+) naïve T cells upon cytokine driven activation, differentiate into lineages of helper (Th) and regulatory T cells (Treg) including inflammatory Th17 cell lineage...
October 23, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29073348/gut-microbiota-perturbations-in-reactive-arthritis-and-post-infectious-spondyloarthritis
#8
Julia Manasson, Nan Shen, Helga R Garcia Ferrer, Carles Ubeda, Isa Iraheta, Adriana Heguy, Joan M Von Feldt, Luis R Espinoza, Abraham Garcia Kutzbach, Leopoldo N Segal, Alexis Ogdie, Jose C Clemente, Jose U Scher
OBJECTIVE: Reactive arthritis (ReA) is an inflammatory disorder occurring several weeks after gastrointestinal or genitourinary infections. HLA-B27 positivity is considered a risk factor, though not necessarily predictive of disease incidence. Among non-genetic factors, the intestinal microbiome may play a role in disease susceptibility. The objective of this study was to characterize the gut microbiota and host gene interactions in ReA and post-infectious spondyloarthritis. METHODS: Adult peripheral spondyloarthritis and control subjects with preceding infections that did not develop arthritis were prospectively recruited from a highly prevalent geographic region...
October 26, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29062564/bacille-calmette-gu%C3%A3-rin-vaccine-induced-tuberculous-hip-osteomyelitis-in-an-infant-case-report
#9
Mohammed S Al-Azri, Jazel Manarang, Yaqoub Al-Mufargi
To this day, tuberculosis (TB) continues to pose a significant global health burden. The World Health Organization's Expanded Programme on Immunization (EPI) recommends the bacille Calmette-Guérin (BCG) vaccine for infants to protect against the haematogenous spread of primary TB and other more severe types of TB infection. We report an eight-month-old boy who presented to the Armed Forces Hospital, Muscat, Oman, in 2015 with a one-month history of intermittent fever associated with a limited range of motion in the right hip area...
August 2017: Sultan Qaboos University Medical Journal
https://www.readbyqxmd.com/read/29061443/outcomes-of-lupus-and-rheumatoid-arthritis-patients-with-primary-dengue-infection-a-seven-year-report-from-brazil
#10
Mirhelen Mendes de Abreu, Alexandre Cristovão Maiorano, Sara K Tedeschi, Kazuki Yoshida, Tzu-Chieh Lin, Daniel H Solomon
OBJECTIVE: We described the clinical profile and outcomes of patients with SLE and RA diseases reported to the Brazilian Health Information System with primary dengue infection. METHODS: Databases from the Brazilian Public Health Informatics System (SUS) were linked as the source of information. Three databases comprising different longitudinal information of lupus or rheumatoid arthritis (RA) patients under treatment and care through the Brazilian Health System were linked...
September 8, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/29032478/total-knee-arthroplasty-in-patients-with-a-history-of-illicit-intravenous-drug-abuse
#11
David E Bauer, Andreas Hingsammer, Lukas Ernstbrunner, Alexander Aichmair, Andrea B Rosskopf, Franziska Eckers, Karl Wieser, Sandro F Fucentese
PURPOSE: Injection drug users are at high risk for both infection with blood-borne pathogens, namely, human immune deficiency virus (HIV), hepatitis-B, -C virus, various bacterial infections, as well as early primary and secondary joint degeneration. When total knee arthroplasty (TKA) is anticipated the risk of septic complications is a major concern. The purpose of this study was to assess the clinical and radiographic outcome of patients with a history of intravenous drug use after total knee arthroplasty...
October 14, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/29016319/clinical-epidemiology-of-septic-arthritis-caused-by-burkholderia-pseudomallei-and-other-bacterial-pathogens-in-northeast-thailand
#12
Prapit Teparrukkul, Jiraphorn Nilsakul, Susanna Dunachie, Direk Limmathurotsakul
Septic arthritis is a medical emergency, and if not treated appropriately, it can be associated with high morbidity and mortality. Melioidosis, a serious infectious disease caused by the Gram-negative bacillus Burkholderia pseudomallei, is highly endemic in South and Southeast Asia and northern Australia. We reviewed the medical charts of adult patients admitted with bacterial septic arthritis at Sunpasitthiprasong Hospital, Ubon Ratchathani, northeast Thailand from January 2012 to December 2014. Bacterial septic arthritis was defined as one or more hot swollen joints with isolation of a pathogenic organism from an affected joint or from blood...
October 2, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28992868/definitive-diagnosis-of-children-presenting-to-a-pediatric-emergency-department-with-fever-and-extremity-pain
#13
Nicolas V Vardiabasis, John A Schlechter
BACKGROUND: Children who present to the emergency department (ED) with complaint of fever and new-onset joint or extremity pain can be a diagnostic dilemma for many emergency and consulting physicians. OBJECTIVES: The purpose of our study was to identify the etiologies of pediatric fever and extremity pain presenting to a tertiary care pediatric ED and to define factors that were associated with advanced imaging, admission, and surgical intervention. METHODS: The electronic medical records of children presenting to our institution's pediatric ED with fever and extremity pain were retrospectively reviewed...
September 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28948174/intestinal-dysbiosis-and-rheumatoid-arthritis-a-link-between-gut-microbiota-and-the-pathogenesis-of-rheumatoid-arthritis
#14
REVIEW
Gabriel Horta-Baas, María Del Socorro Romero-Figueroa, Alvaro José Montiel-Jarquín, María Luisa Pizano-Zárate, Jaime García-Mena, Ninfa Ramírez-Durán
Characterization and understanding of gut microbiota has recently increased representing a wide research field, especially in autoimmune diseases. Gut microbiota is the major source of microbes which might exert beneficial as well as pathogenic effects on human health. Intestinal microbiome's role as mediator of inflammation has only recently emerged. Microbiota has been observed to differ in subjects with early rheumatoid arthritis compared to controls, and this finding has commanded this study as a possible autoimmune process...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28937414/rheumatoid-arthritis-and-citrullination
#15
Erika Darrah, Felipe Andrade
PURPOSE OF REVIEW: Dysregulated citrullination is a key element that drives the production and maintenance of antibodies to citrullinated proteins, a hallmark in rheumatoid arthritis (RA). This article reviews recent literature on the origin of citrullinated antigens in RA. RECENT FINDINGS: The study of synovial fluid from patients with RA has provided important insights into the identity of citrullinated proteins that accumulate in the RA joint (the RA citrullinome) and mechanisms that control their generation...
September 21, 2017: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/28926599/experimental-colitis-delays-and-reduces-the-severity-of-collagen-induced-arthritis-in-mice
#16
Julie Hablot, Laurent Peyrin-Biroulet, Tunay Kokten, Reine El Omar, Patrick Netter, Claire Bastien, Jean-Yves Jouzeau, Harry Sokol, David Moulin
Amongst extraintestinal manifestations (EIM) occurring in IBD patients, rheumatologic manifestations are the most frequent. Understanding the relationships between arthritis and colitis is a prerequisite to improving the management of these patients. Microbiota of patients with IBD or rheumatologic diseases, like spondyloarthritis (SpA) is modified compared to healthy individual. Thus, we have evaluated the impact of colitis in the development of arthritis in mice and we have analyzed microbiota changes. Collagen-induced arthritis (CIA) was induced at day 0 in DBA1 mice exposed or not to Dextran Sodium Sulfate (DSS) to induce colitis between day 14 and day 21...
2017: PloS One
https://www.readbyqxmd.com/read/28926460/peripheral-bacterial-septic-arthritis-review-of-diagnosis-and-management
#17
Ahmed S Hassan, Allison Rao, Augustine M Manadan, Joel A Block
Septic arthritis refers to an infection in a joint due to a bacterial, mycobacterial, or fungal cause. Joint infections are a serious cause of morbidity and mortality and constitute a true musculoskeletal emergency. The estimated incidence of septic arthritis in the general population is between 2 and 6 cases per 100,000 people per year. The most common presentation is an acute monoarthritis. Identification of organisms in the synovial fluid is the criterion standard for diagnosis. Synovial fluid aspiration should be performed prior to initiating antibiotics...
September 19, 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/28916545/serologic-evidence-of-gut-driven-systemic-inflammation-in-juvenile-idiopathic-arthritis
#18
Lampros Fotis, Nurmohammad Shaikh, Kevin W Baszis, Charles M Samson, Raffi Lev-Tzion, Anthony R French, Phillip I Tarr
OBJECTIVE: Accumulating evidence links juvenile idiopathic arthritis (JIA) to nonhost factors such as gut microbes. We hypothesize that children with new-onset JIA have increased intestinal bacterial translocation and circulating lipopolysaccharide (LPS). METHODS: We studied systemic treatment-naive patients with JIA [polyarticular JIA, n = 22, oligoarticular JIA, n = 31, and spondyloarthropathies (SpA), n = 16], patients with established inflammatory bowel disease-related arthritis (IBD-RA, n = 11), and 34 healthy controls...
November 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28901253/bacterial-toxins-a-hope-towards-angiogenic-ailments
#19
Rekha Khandia, Ashok Kumar Munjal, Kuldeep Dhama, Yashpal Singh Malik
Angiogenesis is a vital physiological process essential for growth and maintenance of the body. It plays an important role during embryonic development and generally absent in adults with some exceptions like during wound repair and menstrual cycle in women. Excess as well as deficiency in angiogenesis, result in pathological conditions. It is a tightly regulated process; rely on cascade of several molecular signalling pathways involving many effectors like VEGF, FGF, PDGF, IGF etc. Excessive angiogenesis is associated with disorders like tumor, atherosclerosis, rheumatoid arthritis, diabetic retinopathy, endometriosis, psoriasis, adiposity...
September 11, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28900682/treatment-of-staphylococcus-aureus-infections
#20
Michael Z David, Robert S Daum
Staphylococcus aureus, although generally identified as a commensal, is also a common cause of human bacterial infections, including of the skin and other soft tissues, bones, bloodstream, and respiratory tract. The history of S. aureus treatment is marked by the development of resistance to each new class of antistaphylococcal antimicrobial drugs, including the penicillins, sulfonamides, tetracyclines, glycopeptides, and others, complicating therapy. S. aureus isolates identified in the 1960s were sometimes resistant to methicillin, a ß-lactam antimicrobial active initially against a majority S...
September 13, 2017: Current Topics in Microbiology and Immunology
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