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Abstract
Hepatocyte transplantation (HcTx) is a promising approach for the treatment of metabolic diseases in newborns and children. The most common application route is the portal vein, which is difficult to access in the newborn. Transfemoral access to the splenic artery for HcTx has been evaluated in adults, with trials suggesting hepatocyte translocation from the spleen to the liver with a reduced risk for thromboembolic complications. Using juvenile Göttingen minipigs, we aimed to evaluate feasibility of hepatocyte transplantation by transfemoral splenic artery catheterization, while providing insight on engraftment, translocation, viability, and thromboembolic complications. Four Göttingen Minipigs weighing 5.6 kg to 12.6 kg were infused with human hepatocytes (two infusions per cycle, 1.00E08 cells per kg body weight). Immunosuppression consisted of tacrolimus and prednisolone. The animals were sacrificed directly after cell infusion (n=2), 2 days (n=1), or 14 days after infusion (n=1). The splenic and portal venous blood flow was controlled via color-coded Doppler sonography. Computed tomography was performed on days 6 and 18 after the first infusion. Tissue samples were stained in search of human hepatocytes. Catheter placement was feasible in all cases without procedure-associated complications. Repetitive cell transplantations were possible without serious adverse effects associated with hepatocyte transplantation. Immunohistochemical staining has proven cell relocation to the portal venous system and liver parenchyma. However, cells were neither present in the liver nor the spleen 18 days after HcTx. Immunological analyses showed a response of the adaptive immune system to the human cells. We show that interventional cell application via the femoral artery is feasible in a juvenile large animal model of HcTx. Moreover, cells are able to pass through the spleen to relocate in the liver after splenic artery infusion. Further studies are necessary to compare this approach with umbilical or transhepatic hepatocyte administration.
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399 IL-36 receptor antagonistic antibodies inhibit inflammatory response in IL-23 model of psoriasiform dermatitis. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Plasma levels of intact and cleaved urokinase plasminogen activator receptor (uPAR) in men with clinically localised prostate cancer. J Clin Pathol 2017; 70:1063-1068. [PMID: 28607123 DOI: 10.1136/jclinpath-2017-204475] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 04/25/2017] [Accepted: 04/25/2017] [Indexed: 01/07/2023]
Abstract
AIMS Lymph node metastasis (N1) is an adverse prognostic factor for men with clinically localised prostate cancer (PCa), but the prediction of N1 disease remains difficult. Urokinase plasminogen activator receptor (uPAR) plays an important role in angiogenesis and tumorigenesis. We analysed whether plasma levels of the soluble uPAR forms uPAR(I-III), uPAR(II-III) and uPAR(I) were associated with the risk of N1 disease in men with clinically localised PCa. METHODS The present study includes all men (n=518) who underwent radical prostatectomy (RP) for clinically localised PCa, 29 of whom had N1 disease. Soluble uPAR forms were measured using three time-resolved fluorescence immunoassays. The prognostic value of the different uPAR forms together with clinicopathological parameters for N1 disease were analysed using logistic regression, receiver operating characteristic (ROC) regression analysis and quantified using the areas under the ROC curve (AUC). RESULTS All soluble uPAR levels were significantly (p=0.03) higher in patients with N1 disease compared with patients with N0/x disease. ROC curves including clinical tumour stage, biopsy Gleason score, prostate-specific antigen and percent positive biopsies had an AUC of 87.7% for prediction of N1 disease. With the addition of uPAR(I) to the model, the AUC increased to 88.4%. CONCLUSIONS Addition of uPAR(I) level to known diagnostic parameters did not increase the prediction of N1 disease following RP in men with clinically localised PCa. Our results indicate that the plasma levels at diagnosis of the different uPAR forms do not hold important predictive or prognostic information in men with clinically localised PCa.
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CLINICAL OUTCOMES AND MOLECULAR CHARACTERIZATION FROM a PHASE II STUDY OF COPANLISIB IN PATIENTS WITH RELAPSED OR REFRACTORY DIFFUSE LARGE B-CELL LYMPHOMA. Hematol Oncol 2017. [DOI: 10.1002/hon.2437_56] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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668 Digital dermatopathology for discovery: Turning qualitative into quantitative. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Systematic review: does endocrine therapy prolong survival in patients with prostate cancer? Scand J Urol 2016; 50:135-43. [DOI: 10.3109/21681805.2016.1142472] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Abstract
AIM Urokinase plasminogen activator receptor (uPAR) plays a central role during cancer invasion by facilitating pericellular proteolysis. We initiated the prospective 'Copenhagen uPAR Prostate Cancer' study to investigate the significance of uPAR levels in prostate cancer (PCa) patients. METHODS Plasma samples and clinical data from patients with newly diagnosed PCa have been collected prospectively. The uPAR forms have been measured in plasma using time-resolved fluorescence immunoassays. RESULTS The level of intact uPAR(I-III) did not differ. Plasma uPAR(I-III) + uPAR(II-III) levels and uPAR(I) levels were significantly higher in hormone-naive and castrate-resistant patients compared with patients with localized disease (both: p < 0.0001). CONCLUSION Our results show that cleaved uPAR forms are significantly increased in patients with advanced PCa.
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C-type natriuretic peptide and its precursor: potential markers in human prostate cancer. Biomark Med 2016; 9:319-26. [PMID: 25808436 DOI: 10.2217/bmm.14.74] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AIM Seminal plasma offer a more organ-specific matrix for markers in prostatic disease. We hypothesized that C-type natriuretic peptide (CNP) expression may constitute such a new target. METHODS Patients with benign prostatic hyperplasia, clinically localized and metastatic prostate cancer were examined for CNP and CNP precursor (proCNP) concentrations in blood and seminal plasma. Furthermore, CNP and the CNP receptor (NPR-B) mRNA contents in tissue from prostate and seminal vesicles were analyzed by qPCR. RESULTS CNP and NPR-B concentrations decreased with increasing tumor burden (p = 0.0027 and p = 0.0096, respectively). In contrast, seminal plasma CNP and proCNP concentrations were markedly increased with increased tumor burden (p < 0.0001 and p < 0.0001, respectively). CONCLUSION CNP/proCNP could be new markers in human prostate cancer.
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Engineering the optimal site for islet cell transplantation: proof-of-concept for a decellularized rat pancreas. DIABETOL STOFFWECHS 2015. [DOI: 10.1055/s-0035-1549562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Urokinase plasminogen activator receptor (uPAR) as a novel biomarker in prostate cancer. J Clin Oncol 2015. [DOI: 10.1200/jco.2015.33.7_suppl.183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
183 Background: New biomarkers are warranted to distinguish between indolent and aggressive prostate cancer (PCa). The urokinase plasminogen activator receptor (uPAR) plays an important role in pericellular proteolysis by binding urokinase plasminogen activator (uPA). This is required for degradation of the extracellular matrix and for cancer invasion. In addition to binding uPAR, uPA cleaves uPAR liberating uPAR(I) and uPAR(II-III). Intact, uPAR(I-III), and uPAR(II-III) can be liberated from the cell surface resulting in three different uPAR forms in circulation. The different uPAR forms are strong prognostic markers in several cancers. We measured the uPAR forms in plasma from patients with different stages of PCa. Methods: Between February 1, 2012 and October 1, 2014, 400 patients with PCa (se table) had plasma samples obtained. The levels of intact uPAR [uPAR(I-III)], intact uPAR + cleaved uPAR domains II+III [uPAR(I-III) + uPAR(II-III)], and cleaved uPAR domain I [uPAR(I)] were determined in citrated plasma samples with two-site sandwich time-resolved fluorescence immunoassays (TR-FIAs). Results: Plasma uPAR(I-III) + uPAR(II-III) and uPAR(I) were significantly higher in hormone naïve patients and CRPC patients compared to patients with localized disease (see table). Quantification of intact uPAR(I-III) revealed no significant differences between the three groups. Conclusions: Our findings suggest that uPAR(I-III) + uPAR(II-III) and uPAR(I) are associated with higher tumor stage as well as advanced PCa disease. These associations suggest that uPAR domains in plasma harbour prognostic value for PCa patients. Further studies are warranted to validate the use of uPAR forms as biomarkers for PCa. [Table: see text]
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Reduction of unwanted submental fat with ATX-101 (deoxycholic acid), an adipocytolytic injectable treatment: results from a phase III, randomized, placebo-controlled study. Br J Dermatol 2014; 170:445-53. [PMID: 24147933 PMCID: PMC4232897 DOI: 10.1111/bjd.12695] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/10/2013] [Indexed: 12/01/2022]
Abstract
Summary What's already known about this topic? What does this study add?
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Efficacy, patient-reported outcomes and safety profile of ATX-101 (deoxycholic acid), an injectable drug for the reduction of unwanted submental fat: results from a phase III, randomized, placebo-controlled study. J Eur Acad Dermatol Venereol 2014; 28:1707-15. [PMID: 24605812 PMCID: PMC4263247 DOI: 10.1111/jdv.12377] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Accepted: 12/16/2013] [Indexed: 11/26/2022]
Abstract
Background Unwanted submental fat (SMF) may result in an unattractive chin profile and dissatisfaction with appearance. An approved and rigorously tested non-surgical method for SMF reduction is lacking. Objective To evaluate the efficacy and safety of ATX-101 for the pharmacological reduction of unwanted SMF in a phase III randomized, double-blind, placebo-controlled study. Methods Patients (n = 360) with moderate or severe SMF were randomized to receive ATX-101 1 or 2 mg/cm2 or placebo injected into their SMF for up to four treatments ∼28 days apart, with a 12-week follow-up. Coprimary efficacy endpoints were the proportions of treatment responders, defined as a ≥1-point reduction in SMF on the Clinician-Reported Submental Fat Rating Scale (CR-SMFRS), and those satisfied with their appearance in association with their face and chin after treatment on the Subject Self-Rating Scale (SSRS score ≥4). Secondary efficacy endpoints included a ≥1-point improvement in SMF on the Patient-Reported Submental Fat Rating Scale (PR-SMFRS) and changes in the Patient-Reported Submental Fat Impact Scale (PR-SMFIS). Additional patient-reported outcomes and changes in the Skin Laxity Rating Scale were recorded. Adverse events (AEs) and laboratory test results were monitored. Results Compared with placebo, a greater proportion of patients treated with ATX-101 1 and 2 mg/cm2 showed a ≥1-point improvement in CR-SMFRS (58.3% and 62.3%, respectively, vs. 34.5% with placebo; P < 0.001) and patient satisfaction (SSRS score ≥4) with the appearance of their face and chin (68.3% and 64.8%, respectively, vs. 29.3%; P < 0.001). Patient-reported secondary efficacy endpoints showed significant improvements in SMF severity (PR-SMFRS; P = 0.009 for ATX-101 1 mg/cm2, P < 0.001 for ATX-101 2 mg/cm2 vs. placebo) and emotions and perceived self-image (PR-SMFIS; P < 0.001). No overall worsening of skin laxity was observed. AEs were mostly transient, mild to moderate in intensity and localized to the treatment area. Conclusion ATX-101 was effective and well tolerated, and may be an alternative to surgery for patients desiring improvement of their submental profile.
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Terahertz plastic compound lenses. APPLIED OPTICS 2013; 52:4186-4191. [PMID: 23842159 DOI: 10.1364/ao.52.004186] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Accepted: 05/21/2013] [Indexed: 06/02/2023]
Abstract
We present terahertz (THz) lenses made of highly refracting polymeric compounds which provide a better focusing performance and an increased functionality in comparison to conventional THz lenses. Using mixtures consisting of polypropylene (PP) and alumina as well as PP and zinc sulfide allows a significant increase of the refractive index while simultaneously keeping a low extinction and dispersion. With these new material combinations, lenses with an increased focusing capability are realized. This is evaluated by focal plane measurements using a fiber coupled THz time-domain spectrometer.
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Silica-Based Micron-Sized Iron Oxide Particles for Detection and Loco-Regional Stimulation of Transplanted Liver Cells. Transplantation 2012. [DOI: 10.1097/00007890-201211271-01986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
The natriuretic peptide system comprises three structurally related peptides: atrial natriuretic peptide, B-type natriuretic peptide and C-type natriuretic peptide. In circulation, they play an important endocrine role in the regulation of cardiovascular homeostasis by maintaining blood pressure and extracellular fluid volume. Atrial natriuretic peptide and B-type natriuretic peptide have gained considerable diagnostic interest as biomarkers in cardiovascular disease. By contrast, C-type natriuretic peptide has not yet been ascribed a role in human diagnostics. This perspective aims at recapitulating the present biochemical and clinical issues concerning C-type natriuretic peptide measurement in plasma as a potential biomarker.
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Abstract
Cobalt-protoporphyrin (CoPP)-dependent induction of heme oxygenase (HO)-1 has been shown to protect from ischemia-reperfusion injury, which remains a major source of graft loss after liver transplantation. The impact of HO-1 on liver regeneration, especially in reduced-size grafts, has not yet been evaluated. Using an experimental model, we investigated HO-1 induction by CoPP treatment on postoperative recovery of ischemically injured livers following partial (70%) hepatectomy. Wistar rats underwent partial hepatectomy under temporary inflow occlusion (30 minutes). One group of animals received CoPP (5 mg/kg body weight i.p.) 24 hours prior to surgery to induce high levels of HO-1 at the time of surgery, and the second group served as nontreated controls. At postoperative days 1, 4, 7, and 10, animals were exsanguinated, and blood and liver samples were stored for enzymatic (serum AST and ALT levels) and histologic (mitotic index) analyses (n = 5 each day). Additionally, postoperative body weight and weight of the remnant liver were measured. Although serum AST and ALT levels as well as remnant liver weight were comparable between both groups, CoPP-treated animals recovered from surgery more quickly as indicated by postoperative body weight. Moreover, the number of mitotic cells was significantly increased in this group at day 1 (33 +/- 5 versus 20 +/- 5 per 2000 hepatocytes) as compared with nontreated animals. Liver regeneration of ischemically injured livers following partial hepatectomy was improved by HO-1 overexpression following preoperative CoPP administration. Thus, it is conceivable that prevention of ischemia-reperfusion injury by HO-1 overexpression also might be beneficial for reduced-size liver grafts without affecting their proliferative capacity.
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Shared experience in 13 local Danish EPR projects: the Danish EPR Observatory. Stud Health Technol Inform 2001; 84:670-4. [PMID: 11604822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2023]
Abstract
In 1996 a national strategy for the development of electronic patient records (EPR) for the Danish hospitals and primary care was launched. An element in the strategy was to support a number of regional EPR development projects. The EPR-Observatory has in the two recent years collected data from the regional projects, dealing with the expectations in four areas: 1) Impact on organisational issues, 2) Benefits of EPR, 3) Integration of EPR with other information systems and 4) security aspects of EPR. Among the observations an increasing teamwork and im-proved knowledge about the patient was found. What was expected, but not found, was resistance to EPR, as a result of changes in skills and power. The most obvious benefits are increased data accessibility and improved decision ma-king. The most considerable disadvantage is an enormous growth in discontent with the systems performance and the fact, that all the projects are delayed. Many different types of integration solutions are chosen, because of a lack of a common model for integration. Generally the projects find, that EPJ yields increased security, but logistical problems arise in having the systems running 24 hours 7 days a week. Economical benefits cannot be documented. This relates to the fact, that the regional projects are stand-alone projects. The ongoing growth in discontent with the EPR-systems and the fact, that all the projects are delayed must be subject to further exploration.
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Clonal evolution in a primary cutaneous follicle center B cell lymphoma revealed by single cell analysis in sequential biopsies. Immunobiology 2000; 201:631-44. [PMID: 10834319 DOI: 10.1016/s0171-2985(00)80080-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
B cell neoplasias descending from germinal center cells harbor the hallmark of intraclonal diversity resulting from ongoing mutation in the variable parts of their immunoglobulin-encoding genes. To characterize a primary cutaneous follicle center B cell lymphoma in more detail, we analyzed the respective VH and VL genes in single cells mobilized from four sequential biopsies, three taken from the skin and one obtained after internal dissemination from a retrobulbar infiltrate. The lymphoma cells were found to contain V5-51/D6-12/JH5b (heavy chain) and A27/Jkappa2 (light chain) gene rearrangements detected on both the genomic and the transcriptional level. To provide an accurate mutation analysis, the specific VH gene counterpart (V5-51UK) was cloned from the patient's germline. Analyzing 226 single cells, we found: (i) complete nucleotide identity when VH and VL genes of lymphoma cells from one particular biopsy were compared among each other; (ii) intraclonal diversity due to ongoing mutation comparing the sequences obtained from sequential biopsies; (iii) both VH and VL genes to be highly mutated. Deducing from the sequence data, we propose a scenario of the clonal evolution of the B cell tumor in this patient. From the molecular-biological point of view, this primary cutaneous follicle center B cell lymphoma shows the features of a germinal center cell lymphoma. To draw this conclusion from single cell PCR data, however, a sample of sequential biopsies had to be analyzed.
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[International experiences related to the use of quality indicators]. Ugeskr Laeger 1999; 161:5525-30. [PMID: 10553362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
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Quantitation and histochemical localization of galectin-1 and galectin-1-reactive glycoconjugates in fetal development of bovine organs. Histol Histopathol 1997; 12:945-60. [PMID: 9302557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The display of cellular oligosaccharide chains is known to undergo marked developmental changes, as monitored histochemically with plant lectins. In conjunction with endogenous lectins respective ligand structures may have a functional role during fetal development. The assumption of a recognitive, functionally productive interplay prompts the study of the expression of a tissue lectin and of lectin-reactive glycoconjugates concomitantly. Focusing on common beta-galactosides as constituents of oligosaccharide chains and the predominant member of the family of galectins in mammals, namely galectin-1, the question therefore is addressed as to whether expression of lectin and lectin-reactive glycoconjugates exhibits alterations, assessed in three morphologically defined fetal stages and in adult bovine organs. Using a sandwich ELISA, the level of the rather ubiquitous galectin-1 is mostly increased in adult organs relative to respective fetal stages, except for the case of kidney. This developmental course is seen rather seldom, when the amounts of lectin-reactive glycoproteins or glycolipids are quantitated in solid-phase assays after tissue homogenization. Western blotting, combined with probing by labeled galectin-1, discloses primarily quantitative changes in the reactivity of individual glycoproteins. Performing the same assays on extract aliquots with a plant agglutinin, namely the galactoside-binding mistletoe lectin, whose fine specificity is different from galectin-1, its reduced extent of binding in solid-phase assays and the disparate profile of lectin-reactive glycoproteins reveal a non-uniform developmental alteration within the group of structural variants of beta-galactosides. Although sample preparation can affect ligand preservation and/or presentation and thus restricts the comparability of biochemical and histochemical results, especially for soluble reactants, the histochemical studies on frozen and paraffin-embedded sections of bovine heart, kidney and liver demonstrate that the localization of the galectin and of lectin-reactive epitopes can show a similar distribution, as seen in liver and heart, with organ-typical quantitative changes of a rather similar staining profile (heart, kidney) or notable changes in the spatial distribution (liver) in the course of development. This report emphasizes the potential value of combined monitoring of the lectin and its potential in vivo ligands to contribute to eventually unravel organ-related function(s) of a tissue lectin.
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Views of cardiac-valve prosthesis patients and their dentists on anticoagulation therapy. SCANDINAVIAN JOURNAL OF DENTAL RESEARCH 1994; 102:168-71. [PMID: 8085123 DOI: 10.1111/j.1600-0722.1994.tb01174.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
By administering a questionnaire to 253 patients with cardiac-valve prostheses (89.3% responding), and another to 136 of their attending dentists (79% responding), the level of knowledge among both groups of anticoagulant therapy in connection with dental treatment was investigated. The cardiothoracic department monitored all anticoagulation therapies. Of the anticoagulated patients, 96.6% were able to state their medication (94.1% received phenprocoumon); and of 86 dentists with patients on anticoagulation treatment, 94% were aware of their patients' medication. All 20 dentists stating that their patients did not receive anticoagulants were correct. The great majority (98%) of the dentists employed a special measure to reduce the risk of bleeding associated with invasive dental procedures, most commonly (86%) referring patients to their general practitioner or hospital department for adjustment of the anticoagulant therapy. Around 60% of the dentists considered extractions and operations to require measures to reduce the risk of bleeding complications. We recommend referral of patients to the attending physician for adjustment of anticoagulation to a target International Normalized Ratio (INR) of 4.0 or possibly 3.0 before undergoing dental procedures involving the risk of bleeding. Additional reduction of the bleeding risk can be obtained by local application of an inhibitor of fibrinolysis (tranexamic acid).
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Bacterial sedimentation during cardiac surgery reduced by disposable clothing. SCANDINAVIAN JOURNAL OF THORACIC AND CARDIOVASCULAR SURGERY 1992; 26:79-82. [PMID: 1529303 DOI: 10.3109/14017439209099058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The effect of three types of operating-room clothing on bacterial sedimentation was studied during cardiac valve surgery. The 24 operations were divided into three groups, according to type of clothing worn by all personnel--standard cotton, open style non-woven or closed style non-woven. Sedimentation on open agar plates was greatest when cotton clothing was worn, less with open style non-woven garments (difference not significant), and still less with closed style non-woven clothing (difference statistically significant). The sedimentation corresponded to estimated airborne concentrations (cfu/m3) of 79.6 (cotton clothing), 59.7 (open style non-woven) and 7.2 (closed style non-woven). Use of closed style non-woven operation clothing is recommended for cardiac surgery.
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Dental procedures and endocarditis prophylaxis: experiences from 108 dental practices. SCANDINAVIAN JOURNAL OF DENTAL RESEARCH 1990; 98:144-8. [PMID: 2140465 DOI: 10.1111/j.1600-0722.1990.tb00953.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
In a previous survey, we analyzed a questionnaire to 220 patients, who underwent cardiac surgery with insertion of prosthetic heart valves in the period 1978-1982. Of the 147 patients with their own natural teeth, 136 gave us permission to contact their regular or casual dentists. Of the 108 dentists (79%), who responded to a questionnaire, two thirds were well aware that their patients had prosthetic heart valve and the vast majority of dentists believed that antibiotic prophylaxis is justified in connection with (certain) dental procedures. However, only 15 dentists (14%) prescribed prophylactic antibiotics, i.e. before scaling. The dosage route, frequency and duration of antibiotic administration used by more than half of the dentists was not in accordance with modern principles of antibiotic prophylaxis to prevent bacterial endocarditis. Proposals for antibiotic regimens have to be linked to better education/information of the patients, doctors and dentists and should be linked to recommendations to ensure the highest level of dental care in risk patients.
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Elimination of cefuroxime and gentamicin during and after open heart surgery. J Antimicrob Chemother 1989; 24:775-80. [PMID: 2599997 DOI: 10.1093/jac/24.5.775] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
In eight consecutive adult heart surgery patients, serum concentrations of cefuroxime and gentamicin were studied during and after operation. Repeated doses of cefuroxime 1.5 g and gentamicin 80 mg were given. Intra-operative concentrations were deemed adequate (cefuroxime Cmin: 16-45 mg/l, gentamicin Cmin: 1.6-2.8 mg/l), and no differences (P = 0.05) could be demonstrated between elimination rates during and after open heart operation (cefuroxime T1/2 101 vs 111 min, gentamicin T1/2 191 vs 193 min).
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Automated turbidimetry for the rapid differentiation and enumeration of bacteria in food. ZEITSCHRIFT FUR LEBENSMITTEL-UNTERSUCHUNG UND -FORSCHUNG 1989; 189:147-8. [PMID: 2781872 DOI: 10.1007/bf01332951] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A fully automated analysis system has been used to determine bacterial contamination in food, both qualitatively and quantitatively. Growth curves of bacterial flora were monitored using differential media, and a correlation was established between growth curve parameters and colony-forming units derived from drop-plating as the reference method. Optimal correlation was reached by multiple linear regression. The results were already obtained 16 h.
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Dental procedures and endocarditis prophylaxis in patients with prosthetic heart valves: results of a questionnaire to 220 patients. SCANDINAVIAN JOURNAL OF INFECTIOUS DISEASES 1989; 21:665-8. [PMID: 2617208 DOI: 10.3109/00365548909021695] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
220 patients with prosthetic heart valves were surveyed regarding dental status, dental health, patient-dentist relationship, information on dental procedures and antimicrobial prophylaxis at the last visit to the dentist. The vast majority of these patients were on life-long anticoagulant treatment because of mechanical heart valve prostheses. Half of the patients had a regular dentist and customarily visited a dentist one or more times a year. One third of the patients were edentulous and 26.5% of the patients indicated dental disease, including chronic periodontitis. Only 30.4% of the patients received antimicrobial prophylaxis in connection with dental extraction and only 13.8% in connection with scaling. Maintenance of good oral health, routine dental checks and better information to the patients and the dentist are called for.
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[Fibrin glueing in classical thoracic surgery. Preliminary clinical results]. Ugeskr Laeger 1987; 149:3328-30. [PMID: 2451336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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[Penetrating injuries of the neck]. Ugeskr Laeger 1986; 148:1901-3. [PMID: 3750509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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[Perforation of the esophagus with a flexible endoscope]. Ugeskr Laeger 1984; 146:2939-41. [PMID: 6515923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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30
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[Renal angiomyolipma. 2 cases with typical symptomatology]. Ugeskr Laeger 1981; 143:1470-1. [PMID: 7281302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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31
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[Triflo respiratory exerciser for simple examination and self-training of respiration]. Ugeskr Laeger 1980; 142:1075-6. [PMID: 7385415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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32
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Nurses' travel. J Nurs Educ 1972; 2:36-41. [PMID: 4401012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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33
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Abstract
A method of comparing the efficiency of hospital-ward layouts in terms of nurses' travel is described. Comparisons of several floor plans are made. Travel that depends solely on physical layout and travel that is related to typical patterns of work can be identified. The method is useful to the behavioral scientist in making nursing unit studies in which equating travel or accounting for differences in travel are desired. The method is also useful to the industrial engineer and the architect in preventing needless travel, and to nursing management in showing the value of planned tours in reducing travel.
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34
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First questions. Presidential address. Human Factors Society. HUMAN FACTORS 1968; 10:1-3. [PMID: 5662637 DOI: 10.1177/001872086801000101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Typically, human factors specialists respond to questions posed by others and work on problems concerning high technology personnel functioning in high technology systems. A goal for the Human Factors Society is proposed wherein the Society would encourage the generation of basic questions and the applications of human factors methods to new populations.
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35
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36
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Dynamic vision: the legibility of moderately spaced alphanumeric symbols. HUMAN FACTORS 1965; 7:555-560. [PMID: 5886095 DOI: 10.1177/001872086500700607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Two experiments were conducted to investigate subject performance on the basis of two criteria, zero and 100 percent legibility of moving targets. A modified method of limits was employed. The targets consisted of black alphanumeric symbols regularly spaced 7.5 degrees apart on a brightly illuminated white background. Each target subtended an angle of 39 min. Legibility of the symbols was determined as they moved vertically from top to bottom in a frontal plane. The mean angular velocities for both the zero and 100 percent legibility performance levels were found to be approximately three times higher for the 7.5 degree symbol spacing than their respective velocities for a previously determined 1.5 degree symbol spacing. Performance was approximately twice as good with a 30 degree aperture as with a 3 degree aperture.
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