I am interested in a variety of questions within the broad field of normative political philosophy/theory. The optimal treatment strategy for aspergilloma is unknown. View details for Web of Science ID 000175084400015. William David Thomas. Capilla, J., Clemons, K. V., Stevens, D. A. Efficacy of amphotericin B lipid complex in a rabbit model of coccidioidal meningitis. David J. Stewart is Associate Professor with the Program of Maritime Studies, Department of History, East Carolina University; he is also Director of the North Carolina Vernacular Watercraft Recording Project. View details for DOI 10.1128/AAC.46.3.922-924.2002, View details for Web of Science ID 000173908900052. Paracoccidioides is the causative agent of paracoccidioidomycosis, a systemic mycosis endemic to Latin America. The infiltrates were comprised primarily of cells expressing CD4, CD8, or CD11b; low numbers of cells expressing CD45R/B220 were also present. AmBi-treated animals had 3- to 11-fold lower numbers of CFU than FLC-treated rabbits and 6- to 35-fold lower numbers of CFU than AmB-treated rabbits. Itraconazole should be considered for therapy of pulmonary aspergillosis in this and other immunocompromised settings. Two hundred thirty-three independent C. parapsilosis sensu stricto isolates were genotyped by using these markers. but in my situation, it depends entirely on my husband being the primary carer when Im away working. (Medical school lecturer of Anatomy) and [????] View details for DOI 10.1099/mic.0.027441-0, View details for Web of Science ID 000269028900033. Montoya, J. G., Chaparro, S. V., Celis, D., Cortes, J. The advent of the azoles has not led to cure, causing many clinicians to revert to intra-cerebrospinal fluid (CSF) amphotericin as part of the treatment regimen, desiring the influence of the latter regimen's ability to clear infection more completely and rapidly. A strain demonstrating paradoxical growth was grown in the presence and absence of caspofungin, and the cell wall content was analyzed. Dave Stevens is on Facebook. In contrast to the findings with conidia, GM-CSF enhanced the production of IL-1 (5-fold) and TNF (1.5-fold) by LPS treated BAM. View details for DOI 10.1128/IAI.72.4.2338-2349.2004, View details for Web of Science ID 000220481600057, View details for PubMedCentralID PMC375146. Production of the proinflammatory cytokines interleukin (IL)-1 alpha and tumor necrosis factor (TNF)-alpha and of the chemotactic chemokine macrophage inflammatory protein (MIP)-1 alpha by bronchoalveolar macrophages (BAMs) from mice in response to Aspergillus conidia was tested after in vivo administration of saline, dexamethasone, cortisone acetate, granulocyte-macrophage colony-stimulating factor (GM-CSF), or a combination. Mannose binding lectin (MBL) is a protein of the collectin family that appears important in resistance to invasive pulmonary aspergillosis. 0115 95 14859 david.stevens@nottingham.ac.uk Biography I have been at Nottingham since 2000, having previously held positions at Brunel University and Brown University. Microscopically this was correlated with less growth and stunted malformed hyphae. Political Ideas in Practice: Problem-solving Political Theory. View details for DOI 10.1128/AAC.47.2.813-815.2003, View details for Web of Science ID 000180646800058, View details for PubMedCentralID PMC151760. The addition of mouse serum [corrected] resulted in marked depression of TNF and enhancement of IL-6. Here, we investigated the hyphal proteomes of Aspergillus fumigatus and Coccidioides posadasii via quantitative MS(E) mass spectrometry with the objective of developing a vaccine that cross-protects against these and other species of fungi. I also had very supportive friends and family there was no question of breastfeeding being considered an odd choice. David L Stevens, age 38. 69: 2013: Busy Lives at Amarna: excavations in the main city:(grid 12 and the House of Ranefer, N49. We assessed whether there were differences in fungicidal activity of phagocytes and Th-1 lymphocyte cytokine production. > present (Member of the Advisory Board of the Cheltenham Festival of Science) and [????] The recommendations are distilled in this summary, but the reader is encouraged to review the more extensive discussions in subsequent sections, which show the strength of the recommendations and the quality of the evidence, and the original publications cited in detail. In 10-day studies dosing uninfected mice, minor renal tubular changes occurred after AmBisome or Abelcet at 1, 5, or 10 mg/kg with or without cyclophosphamide treatment; nephrosis occurred only with Abelcet in cyclophosphamide-treated mice. Marked CFU reduction by AmBisome at 3 mg/kg occurred in association with relatively more intense inflammation. With the urgent need for novel agents to combat emerging fungal resistance to existing drugs, activity in the exploration of small molecule DNA binders has increased. [2], Stevens was born in Stanmore, Berkshire to a yeoman farmer. Many of the molecular mechanisms of resistance have been defined with matched sets of susceptible and resistant clinical isolates from the same strain. This cytokine profile does not suggest a polarized Th1 or Th2 response. Fluconazole at 10 mg/kg did not reduce the fungal burden in secondary sites, the lungs and kidneys, whereas this itraconazole dose was more effective in clearing the fungi from both organs (P < 0.05 and P < 0.001, respectively). ITZ in cyclodextrin was given by gavage once daily at a dose of 100 mg/kg or twice daily at 50 mg/kg. Infected rabbits demonstrated systemic and neurological sequelae to infection, including CSF pleocytosis. B Kemp, A Stevens, GR Dabbs, M Zabecki, JC Rose. View details for DOI 10.1099/jmm.0.012401-0, View details for Web of Science ID 000271440200011. Since the majority of aspergillomas do not cause life-threatening hemoptysis, the morbidity and cost of treatment must be weighed against the clinical benefit. Sixty isolates were grouped on the basis of the presence (group B) or absence (group A) of a 3-kb band. David Stevens We found 100+ records for David Stevens in NY, FL and 48 other states. Itraconazole is a broad-spectrum oral triazole whose greatest advantages over the imidazoles are in its activity against aspergillosis and cryptococcosis, though it is also efficacious against the endemic deep mycoses. In sequence treatment experiments, initial treatment of BAM with GM-CSF protected against subsequent treatment with DEX. Clemons, K. V., Salonen, J. H., Issakainen, J., Nikoskelainen, J., McCullough, M. J., Jorge, J. J., Stevens, D. A. Immunomodulatory effects of antifungal agents on the response of human monocytic cells to Aspergillus fumigatus conidia. This concept has been applied to a wide range of businesses and projects, from small to large, all with outstanding success. Explore how the celebrity world connects. View Details. Fungal burdens in brains and kidneys were reduced after > 0.3 mg of mannan-BSA (all P < 0.05). Overall, we found that HKY protects mice from infection by Candida albicans in a dose-and regimen-dependent manner. Group A contained 43 isolates (35 clinical and 8 nonclinical isolates) in 31 discernible subgroups, and group B had 17 isolates (14 clinical and 3 nonclinical isolates) in 10 subgroups. Furthermore, petites were significantly less virulent than the parental grands, in most cases, and petites are spontaneously formed in vivo at a frequency inversely correlated to the virulence of the strain. My research can be broken down into three main areas: I am also interested in (though publish less frequently on) ethical and moral questions, such as killing and harming, just war theory, nationality and the structure of moral obligations. View details for Web of Science ID 000249882200035 Because aspergillosis is an important pulmonary disease in birds, avian models have been used successfully to study preventative vaccines. Although GM-CSF did not enhance IL-1 or TNF production by BAM+conidia, GM-CSF significantly antagonized DEX suppression of IL-1 cytokine production. | Art UK", https://en.wikipedia.org/w/index.php?title=Joseph_Stevens_(archaeologist)&oldid=1084872919, This page was last edited on 27 April 2022, at 03:03. Because of possible development of resistance in patient isolates resulting from residence in the abnormal milieu of CF patient airways, or from exposure to antifungals, and considering the possibility of patient-to-patient spread of microbes and reports of elevated resistance to other fungal pathogens, it was important to assay the susceptibility of isolates of Candida and compare that profile to isolates from the community. Overall, these data indicate that rhMBL may have utility in the treatment of candidal vaginitis when used as an adjunctive therapy. Since 2019, she has been President of the charity Humanists UK, which campaigns for state secularism and for "a tolerant world where rational thinking and kindness prevail". Based on a targeted minimum inhibitory concentration of 0.5 g/ml VRC, a dose of 20 mg per kg body weight for the multi-dose pharmacokinetic study was selected. Significant differences in the ability to grow at 39 and 42 degrees C were observed when the virulent and intermediate classes were compared with the avirulent class. "With just one profound discovery, mankind's entire story could change," so said Megan Fox in . Mice were treated with liposomal-amphotericin B (AmBi; AmBisome), lipid-complexed amphotericin B (ABLC; Abelcet), voriconazole (VCZ), micafungin (MICA), caspofungin (CAS) or deoxycholate amphotericin B (AMBd) given alone or in combination. The majority of infant colonizers were not found in the blood, suggesting a possible direct spread of the epidemic subtype VII-1 strain from HCW hands to infant blood. The patient was treated with intravenous amphotericin B followed by endoscopic laser surgery that relieved the obstruction. They were dating for 5 years after getting together in 1995 and were married in 2000. DCA (Doctorate in Creative Arts: Political and Social Justice), Member: Australian Psychological Society (APS), Fellow of the APS College of the Organisational Psychologists, (Ret.) Because no animal models are available for studying this infection, we sought to develop a murine model of CNS aspergillosis. All it took was one encounter with an ancient Roman portrait bust. G-CSF and GM-CSF further enhanced the collaborative killing effect of human effector cells and VCZ. We presently studied acid-stable cell-wall mannan (-1, 6-linked backbone highly branched with -1, 2; -1, 3; and -1, 2-linked manno-oligomers) derived from C. albicans, with or without conjugation to bovine serum albumin (BSA), as a vaccine against systemic aspergillosis. The overall success rate (i.e., the data review committee-assessed global response at the end of treatment) was 42% for posaconazole recipients and 26% for control subjects (odds ratio, 4.06; 95% confidence interval, 1.50-11.04; P=.006). The combination of MICA and ICZ appeared to be potentially antagonistic. Capilla, J., Clemons, K. V., Liu, M., Levine, H. B., Stevens, D. A. Director of Archaeology at Jamestown Rediscovery Williamsburg, Virginia, United States. View details for Web of Science ID 000177999000007. View details for Web of Science ID 000242552000003 When clusters appear, determination of genetic relatedness among strains and identification of a common source are important. Our People Contact Us Leadership ASM's Principals, Directors, Archaeologists, Architectural Historians, and other technical staff have decades of professional and educational experience in cultural and heritage resources management. All dosages of Abelcet and conventional amphotericin B tested were equivalent. VII-1 is the most common RFLP type (176/203 in continuing studies), and C. parapsilosis sensu stricto is similarly dominant in other studies, and cannot be subtyped by RFLP or MLST. There appeared to be little benefit in using the 15-mg/kg dosage of either formulation. The effect of trypanosomiasis on human cardiac stem cells is also being explored (in collaboration with Cardiovascular Medicine at Stanford).Current efforts concern study of a model of respiratory tree aspergillosis, to understand the predilection of lung transplant patients to invasive disease (in collaboration with the Div. Results showed that the protection induced by mannan is dose-dependent; 12 mg unconjugated mannan alone or > 0.3 mg mannan-BSA consistently enhanced survival (P < 0.05). Caspofungin in RPMI 1640 exhibited dose-dependent inhibition, with concentrations of 0.1 and 0.05 microg/ml inhibiting 24.9% +/- 10.4% and 11.7% +/- 3.6%, respectively (n = 10; P < 0.01). Discoveries included extensive Bronze Age remains relating to settlement, industry and funerary activity and a large and well preserved late medieval fish weir. The remaining 11 isolates were DNA group A; 2patients that shared a room had identical group A isolates, both converted to DNA group B type colonization within 2 months. The only exception to this was the inability to distinguish between Saccharomyces bayanus and S. pastorianus (S. carlsbergensis). Statistical analysis of the data demonstrates a strong correlation between homozygosity at the MTL locus and azole resistance (P<0 small middle dot003). Assessment of the paradoxical effect of caspofungin in therapy of candidiasis. In 27 in vitro reports, we found synergy (in 36% of reports), additivity (in 24%), indifference (in 28%), and antagonism (in 11%). The model we established provides an opportunity to study immune responses to and therapeutic options for CNS disease in an immunologically defined, genetically manipulable, and inexpensive species. of Infectious Diseases and Geographic Medicine, Stanford University, Medical School: David A. Stevens, M.D. High dose IL-12 (1 microg, subcutaneously) treatment of BALB/c infected intranasally with Blastomyces resulted in enhanced survival (P<0.008). Data from external control cases were collected retrospectively to provide a comparative reference group.Cases of aspergillosis deemed evaluable by a blinded data review committee included 107 posaconazole recipients and 86 control subjects (modified intent-to-treat population). Getty. Self - Archaeologist: Tyne and Wear Museums 1 episode, 2005 Colin Phillips . After infection with 10(7) CFU, Y55 increased by 13-fold and YJM128 increased by 20-fold in the brain from day 0 to 3. In two experiments, neutropenic CD-1 male mice were infected intracranially with 510 conidia of Aspergillus fumigatus. Overall, these studies indicate that a nonlethal model of oral and gastrointestinal mucosal candidiasis with dissemination can be established in mice. They decided to take the risk of hiring a pregnant presenter who would start filming, bringing a tiny baby with her. The natural history of patients affected is variable. View details for DOI 10.1111/j.1365-2249.2006.03011.x, View details for Web of Science ID 000235370200010. Combining antifungal drugs of different classes may enhance their therapeutic effect. Murine peritoneal macrophages, after adherence and establishment in culture in vitro in the presence of medium containing fetal bovine serum (FBS) for 20 h, then cultured for 20 h, produced several cytokines. Clinical aspergillosis for basic scientists, Conventional or molecular measurement of Aspergillus load, Molecular epidemiology of global Candida dubliniensis isolates utilizing genomic-wide, co-dominant, PCR-based markers for strain delineation. View details for DOI 10.1016/j.ccr.2010.02.027. by Jessica Gingrich January 6, 2021 Hundreds of beer cans are displayed in Maxwell's. In our center, and unlike another fungal pathogen, no increase in resistance of Candida isolates of the CF cohort was found. It has been shown by us and others that progesterone inhibits the growth of Trichophyton mentagrophytes and that the organism escapes from this inhibition over time. All relationship and family history information shown on FameChain has been compiled from data in the public domain. In the absence of serum, with or without fungal stimulation, cytokine and chemokine production was more restricted, largely to TNF and IL-6. Aspergillus terreus causes invasive aspergillosis (IA) in immunocompromised individuals and can be the leading cause of IA in certain medical centers. Therefore, healthcare facilities have begun to implement programs, such as the "Furry Friends Foundation," that bring animals into the facility to improve the quality of life of patients. > present (Patron of the Association of Science and Discovery Centres) and [????] There have been several reports that the activity of echinocandin antifungal agents is not affected or decreased in the presence of human sera. In addition, three other metabolites were isolated. PhD student in Archaeology Dr Anna Stevens. View details for DOI 10.1196/annals.1406.029, View details for Web of Science ID 000250750700017. We have shown heat-killed Saccharomyces (HKY) is a protective vaccine against aspergillosis and coccidioidomycosis. Kramer, M. R., Denning, D. W., Marshall, S. E., Ross, D. J., Berry, G., LEWISTON, N. J., Stevens, D. A., Theodore, J. ENDOCARDITIS DUE TO TRICHOSPORON-BEIGELII - INVITRO SUSCEPTIBILITY OF ISOLATES AND REVIEW, CYCLOSPORINE AND ITRACONAZOLE INTERACTION IN HEART AND LUNG-TRANSPLANT RECIPIENTS. On a more functional note, Im now much more interested in the environments our children grow up in, and early education. Login Do you find it difficult to juggle motherhood with your media career? It focuses on the most clinically important diseases affecting humans and cites various examples of the different types of studies that have been performed. Clarity and uniformity in defining these infections are important factors in improving the quality of clinical studies. Protection of bronchoalveolar macrophages by granulocyte-macrophage colony-stimulating factor against dexamethasone suppression of fungicidal activity for Aspergillus fumigatus conidia, Efficacy of ravueonazole in treatment of mucosal candidosis in SCID mice, In vivo GM-CSF prevents dexamethasone suppression of killing of Aspergillus fumigatus conidia by bronchoalveolar macrophages, The impact of culture isolation of Aspergillus species: A hospital-based survey of aspergillosis. Invasive aspergillosis has been classically associated with certain risk factors: cytotoxic chemotherapy, prolonged neutropenia, corticosteroids, transplantation, AIDS. Infusion-related adverse drug events, mainly rigors/chills, occurred more frequently with group A (11/45, 24 % infusions) than with group B (12/201, 6 % infusions) (P=0.002), which extended the mean infusion time by 20 min (P=0.001). Additional studies are warranted. Virulence factors in Aspergillus that could aggravate these diseases, and particularly immunogenetic factors that could predispose persons to ABPA, were identified. We report here studies which show that escape from growth inhibition is related to the enzymatic transformation of progesterone to polar metabolites. We treated a patient who had acquired aspergillosis some 80 days after allogeneic bone marrow transplantation, with oral itraconazole, 600 mg daily. Ninety percent of the mice given no treatment died by day 6, and 100% died by day 10. Furthermore, one of these proteins, cos-1, has been shown to be important for virulence of Candida albicans. View details for DOI 10.1016/j.cyto.2005.07.004, View details for Web of Science ID 000232712100003. Isolation and identification of the progesterone metabolites confirm the production of 15 alpha-hydroxyprogesterone. Cryptococcosis as a complication of the immunocompromised host has dramatically increased in frequency since the start of the AIDS epidemic. Neither concentration in serum, toxicity, nor outcome correlated with dose, calculated in milligrams per kilogram at the fixed doses (400-mg increments) under study. (Lond.) Fifteen patients met the criteria for proven coccidioidal infection and disease refractory to previous therapy. This model can be used to compare newer antifungals and to study combination therapy or immunotherapy to find better therapeutic alternatives. With anti-1,3-beta-glucan antibody, we showed by IFA assay that B. dermatitidis contained 1,3-beta-glucan. My personal web page can be found athttp://www.uea.ac.uk/~dps/. This would allow macrophage production of proinflammatory cytokines, facilitating resistance to aspergillosis. My research is within the field of moral and political philosophy, in particular I am interested in the proper relationship between conceptions of the good (such as religious and ethical conceptions) and the role of the liberal democratic state, though my interests extend to questions of social justice more generally. Clemons, K. V., Martinez, M., Tong, A., Stevens, D. A. Collectins and fungal pathogens: roles of surfactant proteins and mannose binding lectin in host resistance, Correlation of restriction fragment length polymorphism genotyping with internal transcribed spacer sequence, randomly amplified polymorphic DNA and multilocus sequence groupings for Candida parapsilosis. The incidence of invasive aspergillosis is markedly increasing, and mortality remains dismal. They suggest that the resistance mechanisms identified in matched sets of susceptible and resistant isolates are not sufficient to explain resistance in a collection of unmatched clinical isolates and that additional mechanisms have yet to be discovered. DEX (10(-7)M) significantly suppressed IL-1 and TNF production by BAM+conidia. No monotherapy regimen was superior to another. Oxford University Press and Hurst Publishers. It describes a range of group problem solving methodologies and illustrates vividly how they can aid modern business. of California, Davis). Company. View details for DOI 10.1128/AAC.49.12.4867-4875.2005, View details for Web of Science ID 000233692100006, View details for Web of Science ID 000232356300006. He is currently working and teaching at Peking University, which together with the Institute forms the International Centre for Chinese Heritage and Archaeology. Competition studies for the binder in M. canis resulted in similar findings: DOC and DHT were effective competitors for [3H]progesterone binding. The addition of caspofungin at 0.1 microg/ml and 0.05 microg/ml to the monocyte cultures increased antifungal activity. uk BS8 1TD Overview Fingerprint Network Projects (17) Research Outputs (111) Datasets (2) Rylatt, M, and Mason, P, 2003 The Archaeology of the Medieval Cathedral and Priory of St Mary, Coventry; Direct telephone: 01273 426835 Mobile telephone: 07795 336792 E-mail: paul.mason@ucl.ac.uk. No survivors were cured in both kidneys and brain, but each formulation showed efficacy, especially in the kidneys. Stevens was a significant contributor to the archaeological field and is noted for being the first curator of Reading Museum. The development of newer antifungal drugs is creating new potential combination therapies to combat the dismal mortality rate associated with invasive aspergillosis (IA). However, only two or fewer given a regimen of ABLC or AmBi were cured of infection in both tissues. Other associated conditions include influenza, nonfungal pneumonia, chronic obstructive lung disease, immaturity, sepsis, liver failure, alcoholism, chronic granulomatous disease and surgery. What project can afford not to have the benefits of these secrets?, Many of Dr. Stevens facilitation secrets are revealed, but the extensive use of case studies for real organisations gives the reader tremendous insight in decision-making processes that lead to success for organisation, big or small., Filipo Sarti View details for DOI 10.1007/s11046-017-0133-9, View details for DOI 10.1128/AAC.00316-13. Microbiological cultures, the current "gold standard", demonstrate poor sensitivity, thus diagnosis of invasive disease in the critically ill is difficult. Infection with T. beigelii should be considered in the differential diagnosis of endocarditis in immunocompetent patients, particularly those who have a prosthetic heart valve. Treated groups had significantly lower numbers of white blood cells and significantly lower protein concentrations in the cerebrospinal fluid compared with those for the controls (P < 0.01 to 0.0005) and had fewer clinical signs of infection (e.g., weight loss, elevated temperature, and neurological abnormalities including motor abnormalities). Compared to PBS controls, the administration of HKY (6 10(7)) 3, 4 or 6 times prolonged survival (all P < 0.05) and reduced fungal load in the kidney (all P < 0.05). The general availability of genetically defined strains, immunological reagents, ease of handling, and costs all contribute to the use of mice as the primary laboratory animal species for models of this disease. Histopathologic examinations showed acute meningitis of the brain and spinal cord, some parenchymal invasion and abscesses, and meningeal arteritis. Truck Transportation. Monte Carlo simulations were performed. The 3 newest drugs include posaconazole, micafungin, and anidulafungin, whose pharmacology, toxicology, and indications are presented. As more genomes are sequenced, the identification and characterization of the causes of heritable variation within a species will be increasingly important. We postulate high drug concentrations derepress or activate an as-yet undefined resistance mechanism(s). Oral therapy with the new, antifungal agent itraconazole was successful in five of the six patients, with fatal relapse in one. If SP-A-/- BALF was mixed in equal amounts with SP-D-/- BALF, TNF-alpha production by BAM-B. I write film reviews for a really. Population Pharmacokinetics of Conventional and Intermittent Dosing of Liposomal Amphotericin B in Adults: a First Critical Step for Rational Design of Innovative Regimens. View details for DOI 10.1128/AAC.06015-11, View details for Web of Science ID 000306826300050. IFN-gamma production by CD-1 spleen cells in response to concanavalin A (Con A, 1microg/ml) was 8-fold greater than that by BALB/c spleen cells. All ABLC- or AmBi-treated rabbits survived, whereas eight of nine D5W-treated rabbits were euthanatized before day 25 (P < 0.0001). We compared the efficacies of liposomal amphotericin B (LAmB) and an amphotericin B lipid complex (ABLC) in diabetic ketoacidotic (DKA) or neutropenic mice with disseminated zygomycosis. We examined the global epidemiology of C. parapsilosis and assessed the discriminatory capabilities of restriction fragment length polymorphism (RFLP) and RAPD typing methods. View details for DOI 10.1080/13693780600810040 Reviews aren't verified, but Google checks for and removes fake content when it's identified. The abilities of subpopulations to survive at high drug concentrations could have in vivo consequences. Each of these models has been used to examine various aspects of host resistance, pathogenesis, or antifungal therapy. Illustrates vividly how they can aid modern business systemic and neurological sequelae to infection, we sought to develop murine. Be important for virulence of Candida albicans dramatically increased in frequency since the majority of aspergillomas not! A yeoman farmer, transplantation, AIDS undefined resistance mechanism ( s ) mixed... Nine D5W-treated rabbits were euthanatized before day 25 ( P < 0.0001 ) Wear 1... All P < 0.05 ) and spinal cord, some parenchymal invasion and abscesses, and %. Family history information shown on FameChain has been classically associated with certain risk:. 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