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In-vitro model to mimic T cell subset change in human PDAC organoid co-culture. J Cancer Res Clin Oncol 2023; 149:13051-13064. [PMID: 37470855 PMCID: PMC10587248 DOI: 10.1007/s00432-023-05100-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 06/30/2023] [Indexed: 07/21/2023]
Abstract
PURPOSE Immunotherapies have largely failed as treatment options for pancreatic ductal adenocarcinoma (PDAC). In this field, clinical translational studies into personalized treatment are of fundamental importance. In our study, we model tumor-cell immune-cell interactions in a co-culture of primary human PDAC organoids and matched peripheral blood mononuclear cells (PBMCs). METHODS Using flow cytometry, we evaluated changes in T cell subtypes upon co-culture of patient-derived PDAC organoids and matched PBMCs. RESULTS After co-culturing PDAC organoids with PBMCs, we observed changes in CD4+, CD8+ and Treg cell populations. We observed favorable clinical outcome in patients whose PBMCs reacted to the co-culture with organoids. CONCLUSION This experimental model allows to investigate interactions between patient derived PDAC organoids and their PBMCs. This co-culture system could serve as a preclinical platform to guide personalized therapeutic strategies in the future.
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Image-Guided IORT after Surgical Resection of Brain Malignancies: A Feasibility Study. Int J Radiat Oncol Biol Phys 2023; 117:e715. [PMID: 37786089 DOI: 10.1016/j.ijrobp.2023.06.2217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Intraoperative radiation therapy (IORT) can be used to locally apply radiation doses to surgical cavities of resected brain metastases and glioblastoma. The miniaturized linear accelerator INTRABEAM 600® offers a low-energy system of 50kV X-rays. To date, placing the spherical applicator in the surgical bed has been done manually and without final positioning verification. Ultimately, without positional control, it must be assumed that the applicator is optimally positioned against the tissue in the tumor cavity, without any air interference or fluid underlying. Misplacements could lead to incomplete dose delivery, potentially yielding an increased risk of recurrence. Therefore, we deemed relevant to assess intraoperative imaging as a novel option for easing the applicator positioning. MATERIALS/METHODS A surgical environment was mimicked in two test runs with an interdisciplinary team, accounting for operating and anesthesia times. The IORT planning software Radiance (GMV Innovating Solutions, Madrid, Spain) was previously calibrated with a "cheese" phantom, using twelve different density levels from 0.3 to 1.842 g/cm3, yielding a value-to-density table with -600 to +600 HU range. Furthermore, two inserts were placed in the phantom to evaluate the quality and spatial resolution of the cone-beam CT (CBCT) imaging. The O-Arm System (Medtronic, Minneapolis, MN, USA) was employed for acquiring tomographic intraoperative imaging, once the applicator was placed in a skull-shaped phantom. Two expert radiation oncologists contoured the acquired dataset and performed the treatment calculations, based on a 30 Gy prescription dose. RESULTS We achieved the best possible CBCT imaging quality with the 120kV and 20mA setting parameters. This corresponds to the "HD3D (large)" O-Arm setting mode. With this, the image quality with artifact reduction, minimization of image noise and consideration of a low radiation exposure of only 0.5mSv for the patients is feasible. Approximately 15 additional minutes were accounted for contouring and planning times. CONCLUSION Good-quality intraoperative imaging can be obtained when performing IORT, easing the applicator positioning and resulting in a more precise target irradiation. Operating times would be minimally extended with this procedure. A clinical study will initiate based on these findings.
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PO-1530 Dosimetric comparison of Intraoperative Radiotherapy and SRS for liver metastases. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03494-6] [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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Coagulopathy, Bleeding Events, and Outcome According to Rotational Thromboelastometry in Patients With Acute Liver Injury/Failure. Hepatology 2021; 74:937-949. [PMID: 33636020 PMCID: PMC10668528 DOI: 10.1002/hep.31767] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 02/01/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS Patients with acute liver injury or failure (ALI/ALF) experience bleeding complications uncommonly despite an abnormal hemostatic profile. Rotational thromboelastometry (ROTEM), which assesses clot formation in whole blood, was used to determine the nature of abnormal hemostasis and whether it contributes to bleeding events, illness severity, or survival. APPROACH AND RESULTS A total of 200 patients were recruited from sites of the ALF Study Group. Blood collected daily for up to 5 days was analyzed using ROTEM delta devices. Consistent with standard laboratory evidence of hypocoagulability (median international normalized ratio = 2.9 and platelet count = 144 × 109 /L), patients frequently exhibited ROTEM parameters outside the normal range (73% and 62% had abnormalities in clot formation from extrinsic and intrinsic clotting cascades, respectively); however, measures of clot stability were generally normal. Eighteen patients (9%) experienced bleeding events, in whom clot initiation, assembly, and firmness were more severely deranged than patients without bleeding. Abnormal ROTEM parameters were more frequently observed in patients with non-acetaminophen ALI/ALF than those with acetaminophen ALI/ALF (clot initiation [P < 0.001], assembly [P = 0.02], firmness at 10 minutes [P = 0.05], and maximal firmness [P = 0.06]). Patients with more severe systemic complications (high-grade hepatic encephalopathy and need for renal replacement therapy) also had a higher incidence of abnormal ROTEM parameters. Finally, more hypocoagulable ROTEM parameters (clot initiation (P = 0.005), stiffness at 10 minutes (P = 0.05), and maximal stiffness by fibrin assembly (P = 0.004)) were observed in patients who died or underwent liver transplantation than those who survived with their native liver. CONCLUSIONS In patients with ALI/ALF, abnormal ROTEM parameters are frequent and proportional to disease severity. Whether the increased bleeding risk associated with abnormal ROTEM indicates hemostatic failure or is a proxy for disease severity requires additional study.
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Activity of nadifloxacin and three other antimicrobial agents against Cutibacterium acnes isolated from patients with acne vulgaris. J Eur Acad Dermatol Venereol 2021; 35:e682-e684. [PMID: 34018651 PMCID: PMC8518973 DOI: 10.1111/jdv.17386] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 04/27/2021] [Accepted: 05/07/2021] [Indexed: 12/01/2022]
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Abdominal aortic thromboembolism and subsequent pelvic limb myositis secondary to colitis and septicaemia in a 5‐day‐old Oldenburg colt. EQUINE VET EDUC 2021. [DOI: 10.1111/eve.13412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Itchy plaques with associated comedonal openings and cysts. Clin Exp Dermatol 2020; 45:638-641. [PMID: 31957040 DOI: 10.1111/ced.14158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 11/12/2019] [Indexed: 11/28/2022]
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[Tinea barbae profunda due to Trichophyton mentagrophytes after journey to Thailand : Case report and review]. Hautarzt 2019; 68:639-648. [PMID: 28616693 DOI: 10.1007/s00105-017-4008-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Tinea barbae represents a very rare dermatophytosis. We report on a tinea barbae profunda following a journey to Southeast Asia. After travel to Thailand, a businessman was affected by a foudroyant proceeding abscessing infection of the upper lip and beard area. The initial therapy with oral acyclovir and oral ciprofloxacin, which later was changed to ampicillin plus sulbactam, intravenously, was unsuccessful. In a biopsy sample, histologically, with Grocott-Gomori's methenamine silver stain, fungal mycelium was apparent in the tissue. Thereupon, terbinafine 250 mg was given for 4 weeks, topically, a 1% ciclopiroxolamine-containing cream. In fungal culture, T. mentagrophytes were found to grow. Meanwhile, the patient's German wife suffered from a tinea faciei. From skin scrapings from the cheek, T. mentagrophytes was also cultivated. This zoophilic dermatophyte was identical with other zoophilic strains of T. mentagrophytes currently found in Germany, which were also acquired in Thailand. The patient had contact with Thai female sex workers who must be considered as a source of infection of the dermatophytosis. There was no animal contact, neither in Thailand, nor in Germany. The infection chain of the dermatophytosis from Thailand probably reached from a female sex worker via the here described patient to his wife in Germany. This pathway of infection has been known for 1 or 2 years, but until now, in Germany, Switzerland, and Austria exclusively via pubogenital infections (tinea genitalis profunda) due to T. mentagrophytes after journeys to Southeast Asia. For treatment, oral antifungal agents should be used, first of all terbinafine, alternatively fluconazole or itraconazole.
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Abstract
The present paper reports our first results after pars plana vitrectomy in patients with diabetic retinopathy and hemodialysis with a follow-up of 6 to 24 months. Between January 1992 and October 1994 we performed vitreoretinal surgery with silicone oil tamponade in nine eyes of seven patients with diabetic nephropathy on hemodialysis. All patients had had type I diabetes for 19–32 years. Over the observation period the retina was completely attached in eight eyes. Final visual acuity of 0.1 - 0.7 was attained in four eyes, 0.06 two, hand movements in one eye. Two eyes had no useful final visual acuity because of redetachment of the retina or secondary glaucoma with rubeosis iridis. The small number of complications shows that pars plana vitrectomy can be done in diabetic patients with nephropathy on hemodialysis. This significantly improves their quality of life
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EP-1264: Prophylactically applied Hydrofilm reduces radiation dermatitis in whole-breast radiation therapy. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31574-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Fixation of a proximal femoral physeal fracture in a dog using a ventral approach and two Kirschner wires. Vet Comp Orthop Traumatol 2018. [DOI: 10.1055/s-0038-1632939] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
SummaryA Salter-Harris type I proximal femoral physeal fracture was diagnosed in a six-month-old Norfolk Terrier. The fracture was reduced using a ventromedial approach to the hip joint and fixation with two small Kirschner wires applied from the joint surface and countersunk below the cartilage. The ventromedial approach minimizes soft-tissue and vascular damage and affords direct visualization of the fracture, facilitating reduction and fixation. The two-year postoperative outcome was considered satisfactory in this case.
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Keratoacanthoma management: results of a survey of U.K. dermatologists and surgeons. Br J Dermatol 2017; 178:e49-e50. [PMID: 28758190 DOI: 10.1111/bjd.15858] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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New insights on the antibacterial efficacy of miconazole in vitro. Mycoses 2017; 60:552-557. [PMID: 28370366 DOI: 10.1111/myc.12620] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 02/25/2017] [Accepted: 03/03/2017] [Indexed: 11/29/2022]
Abstract
Miconazole is a broad-spectrum antifungal used in topical preparations. In the present investigation the minimal inhibitory concentration (MIC) of miconazole for eighty wild type strains of gram-positive and gram-negative bacteria isolated from infected skin lesions was assessed using a modified agar dilution test (adapted to CLSI, Clinical Laboratory Standards Institute). 14 ATCC reference strains served as controls. Miconazole was found efficacious against gram-positive aerobic bacteria (n=62 species), the MICs against Staphylococcus (S.) aureus, S. spp., Streptococcus spp. und Enterococcus spp. ranged between 0.78 and 6.25 μg/mL. Interestingly, there were no differences in susceptibility between methicillin-susceptible (MSSA, 3) methicillin-resistant (MRSA, 6) and fusidic acid-resistant (FRSA, 2) S. aureus isolates. Strains of Streptococcus pyogenes (A-streptococci) (8) were found to be slightly more sensitive (0.78-1.563 μg/mL), while for gram-negative bacteria, no efficacy was found within the concentrations tested (MIC >200 μg/mL). In conclusion, for the gram-positive aerobic bacteria the MICs of miconazole were found within a range which is much lower than the concentration of miconazole used in topical preparations (2%). Thus topically applied miconazole might be a therapeutic option in skin infections especially caused by gram-positive bacteria even by those strains which are resistant to antibiotics.
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Latitudinal temperature-dependent variation in timing of prey availability can impact Pacific seabird populations in Canada. CAN J ZOOL 2017. [DOI: 10.1139/cjz-2016-0197] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We modelled how nestling growth rates of Cassin’s Auklet (Ptychoramphus aleuticus (Pallas, 1811)) varied with timing of peak copepod prey availability at two breeding colonies in British Columbia: on Triangle Island, in the California Current Ecosystem, and Frederick Island, in the Gulf of Alaska Ecosystem. We used time series of nestling growth rates and estimated the seasonal timing of peak biomass of the copepod Neocalanus cristatus (Krøyer, 1848) using a temperature-dependent phenology equation. We developed a single model to examine intercolony differences in the effect of the timing of regional peak prey biomass on seabird nestling growth rates. This model indicated nestling growth rates on Triangle Island varied widely and were positively associated with timing of peak zooplankton biomass, such that higher growth rates were observed when the peak biomass occurred later in the breeding season. In contrast, nestling growth rates were consistently high at Frederick Island, where peak copepod biomass always occurred relatively late. If ocean climate warming results in a poleward shift of Neocalanus abundance and induces earlier and more narrow timing of availability, then episodes of poor nestling growth will increase in frequency on Triangle Island and could eventually affect auklets on more northerly colonies.
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Aggregation and a strong Allee effect in a cooperative outbreak insect. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2016; 26:2621-2634. [PMID: 27862568 DOI: 10.1002/eap.1404] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 04/21/2016] [Accepted: 06/13/2016] [Indexed: 06/06/2023]
Abstract
Most species that are negatively impacted when their densities are low aggregate to minimize this effect. Aggregation has the potential to change how Allee effects are expressed at the population level. We studied the interplay between aggregation and Allee effects in the mountain pine beetle (Dendroctonus ponderosae Hopkins), an irruptive bark beetle that aggregates to overcome tree defenses. By cooperating to surpass a critical number of attacks per tree, the mountain pine beetle is able to breach host defenses, oviposit, and reproduce. Mountain pine beetles and Hymenopteran parasitoids share some biological features, the most notable of which is obligatory host death as a consequence of parasitoid attack and development. We developed spatiotemporal models of mountain pine beetle dynamics that were based on the Nicholson-Bailey framework but which featured beetle aggregation and a tree-level attack threshold. By fitting our models to data from a local mountain pine beetle outbreak, we demonstrate that due to aggregation, attack thresholds at the tree level can be overcome by a surprisingly low ratio of beetles per susceptible tree at the stand level. This results confirms the importance of considering aggregation in models of organisms that are subject to strong Allee effects.
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Traduction en français du « Brief Illness Perceived Questionnaire » adapté aux patients lombalgiques et étude de ses qualités métrologiques. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/s1169-8330(16)30511-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Defining the Phenotype and Assessing Severity in Phosphoglucomutase-1 Deficiency. J Pediatr 2016; 175:130-136.e8. [PMID: 27206562 DOI: 10.1016/j.jpeds.2016.04.021] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Revised: 01/22/2016] [Accepted: 04/07/2016] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To define phenotypic groups and identify predictors of disease severity in patients with phosphoglucomutase-1 deficiency (PGM1-CDG). STUDY DESIGN We evaluated 27 patients with PGM1-CDG who were divided into 3 phenotypic groups, and group assignment was validated by a scoring system, the Tulane PGM1-CDG Rating Scale (TPCRS). This scale evaluates measurable clinical features of PGM1-CDG. We examined the relationship between genotype, enzyme activity, and TPCRS score by using regression analysis. Associations between the most common clinical features and disease severity were evaluated by principal component analysis. RESULTS We found a statistically significant stratification of the TPCRS scores among the phenotypic groups (P < .001). Regression analysis showed that there is no significant correlation between genotype, enzyme activity, and TPCRS score. Principal component analysis identified 5 variables that contributed to 54% variance in the cohort and are predictive of disease severity: congenital malformation, cardiac involvement, endocrine deficiency, myopathy, and growth. CONCLUSIONS We established a scoring algorithm to reliably evaluate disease severity in patients with PGM1-CDG on the basis of their clinical history and presentation. We also identified 5 clinical features that are predictors of disease severity; 2 of these features can be evaluated by physical examination, without the need for specific diagnostic testing and thus allow for rapid assessment and initiation of therapy.
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Calculation of the static and dynamical correlation energy of pseudo-one-dimensional beryllium systems via a many-body expansion. J Chem Phys 2016; 145:024104. [DOI: 10.1063/1.4955317] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Impact of intraoperative microperfusion assessment with Pinpoint Perfusion Imaging on surgical management of laparoscopic low rectal and anorectal anastomoses. Colorectal Dis 2015; 17 Suppl 3:22-8. [PMID: 26394739 DOI: 10.1111/codi.13031] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 05/29/2015] [Indexed: 02/08/2023]
Abstract
AIM Inadequate intestinal blood flow may contribute to anastomotic leakage accounting for substantial morbidity and mortality in colorectal surgery. Precise intraoperative assessment of microperfusion may have an impact on the surgeons intraoperative management and leakage rate. METHOD In this single center observational study we implemented and integrated intraoperative indocyanin green (ICG) based microperfusion assessment of anastomosis with Pinpoint Perfusion Imaging in a series of consecutive rectal cancer patients who underwent laparoscopic anterior and lower anterior resection with primary anastomosis during a 5-months period. RESULTS We could demonstrate the feasibility and safety of intraoperative fluorescence angiography for colorectal microperfusion assessment. Technology implementation was immediately successful. No adverse effects have been documented related to fluorescent dye. Microperfusion angiography of the colon succeeded in all cases and assessment of perfusion imaging influenced surgical decision making in 28% of the patients, of which all patients showed primary healing of the anastomosis. We found a leakage rate of 6% with one leakage of a coloanal anastomosis in all patients. CONCLUSION Fluorescence angiography is an accurate tool for assessing microperfusion and is most likely associated with improved outcomes with regard to anastomotic healing.
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Neurocognitive status is associated with all-cause mortality among psychiatric, high-risk liver transplant candidates and recipients. Int J Psychiatry Med 2015; 49:279-95. [PMID: 26078395 DOI: 10.1177/0091217415589304] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Judicious selection of potential liver transplant candidates and close monitoring of progress are essential to successful outcomes. Pretransplant psychosocial evaluations are the norm, but the relationship between psychosocial (and neurocognitive status) and longer term medical outcomes is understudied. This exploratory study sought to examine the relationship between objective measures of pretransplant psychosocial and neurocognitive status and service utilization, transplant status, and all-cause mortality. METHODS This retrospective chart review examined outcomes among 108 psychiatric, high-risk liver transplant candidates up to four years following initial evaluation. Predictor variables of outcomes included demographic, medical, neurocognitive, psychological, and mental health treatment variables. RESULTS Transplant status and neurocognitive functioning were independently associated with all-cause mortality. None of the other variables were associated with outcomes. CONCLUSIONS Better neurocognitive functioning in high-risk liver transplant candidates may allow for greater involvement in medical care and/or compliance with treatment recommendations. More aggressive assessment and management of neurocognitive dysfunction may improve outcomes. Objective measures identified significant psychopathology typical of liver transplant candidates but were not associated with outcomes; engagement in specialized mental health care may have attenuated this relationship. Further study is needed to better understand the relationship between psychosocial functioning and outcomes.
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Vemurafenib-induced hyperkeratosis of the areola treated with topical adapelene. Clin Exp Dermatol 2015; 41:148-51. [DOI: 10.1111/ced.12606] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/04/2014] [Indexed: 11/29/2022]
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Beiträge zur Chemie des Phosphors, 60 Zur Kenntnis des α-Tetraphosphor-trithio-dijodids / Contributions to the Chemistry of Phosphorus, 60 About α-Tetraphosphorus-trithio-diiodide. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2014. [DOI: 10.1515/znb-1975-5-610] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The ‘broad single line’ at —127 ppm (from 85% H3PO4), reported in the literature for the 31P NMR spectrum of α-P4S3J2, could be resolved into 10 lines which form together with also detected outer signals of low intensity an AA′BB′ system with 24 observable lines. Therefore, α-P4S3J2 has the same bicyclic molecular structure 1 in solution as in the solid state. The chemical shifts of the atoms PA and PB, determined by analysis of the spectrum, have the very small difference of 3.68 ppm, which may be caused by an accidental compensation of substituent and ring tension effects. The infrared spectrum of α-P4S3J2 is consistent with formula 1 too.
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Die Aminosäuresequenz des Serin und Asparaginsäure enthaltenden Mureins von Bifidobacterium bifidum Orla Jensen/ The amino acid sequence of the serin and aspartic acid containing mureins of Bifidobacterium bifidum ORLA JENSEN. ACTA ACUST UNITED AC 2014. [DOI: 10.1515/znb-1970-1117] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Cell walls of Bifidobacterium bifidum var. pennsylvanicus were isolated. The polysaccharide consisted of glucose, galactose and rhamnose. Teichoic acid was not present. The murein (peptidoglycan) contained MurNAc, GlcNH2NAc, ᴅ-Glu, Ala. ʟ-Ser, ᴅ-Asp and L-Orn in a ratio of about 1 : 1 : 1 : 2 : 1 : 1 : 1. In one batch a high amount of ʟ-glutamic acid was found. It was not a constituent of the murein since it remained in the lysozyme insensitive residue.
The amino acid sequence of the murein was determined by analyzing the oligopeptides arising during partial acid hydrolysis. It was shown that the peptide subunits attached to the muramic acid are the same as in many other mureins: ʟ-Ala-ᴅ-Glu-ʟ-Orn-D-Ala. The interpeptide bridge consisted of β-ᴅ-aspartyl-ʟ-serine. Since about 35% of aspartic acid and 6% of ornithine are N-terminal in the cell wall, it was assumed that only 60% of the peptide subunits are cross-linked. 4 other strains of B. bifidum proved to contain the same type of murein. While all other strains of other species of Bifidobacterium investigated contained other types of murein, it seems likely that the Orn-Ser-Asp type of the murein is typical of B. bifidum.
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Synthese und 13C-NMR-Spektren tert-butylierter Cyclohexenon-Epoxide Synthesis and 13C NMR Spectra of tert-Butylated Cyclohexenone Epoxides. ACTA ACUST UNITED AC 2014. [DOI: 10.1515/znb-1978-0120] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
NMR spectra of several cyclohexenone epoxides obtained by oxygenation of 4-R-2,6-di-tert-butylphenols have been assigned, using substituent induced shifts, offresonance and C - H single-frequency-decoupling techniques, as well as completely C - H coupled spectra. For the -butyl signals the following sequence rules are relevant: methyl carbons and protons = δtBu-C-olefinic(sp2) > δtBu-C-oxirane(sp3) ≥ δtBu-C-OH(sp3); quaternary carbons = δtBu-C-OH(sp3) > δtBu-C-olefinic(sp2) > δtBu-C-oxirane(sp3). In these compounds, the oxirane oxygen causes a highfield shift of the signal of the quaternary C-atom of the feri-butyl group as compared with the influence of a hydroxy group.
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Survival of influenza virus on human fingers. Clin Microbiol Infect 2013; 20:O58-64. [PMID: 23927722 DOI: 10.1111/1469-0691.12324] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Revised: 05/24/2013] [Accepted: 06/28/2013] [Indexed: 01/16/2023]
Abstract
Indirect transmission of the influenza virus via finger contamination with respiratory mucus droplets has been hypothesized to contribute to transmission in the community. Under laboratory conditions, influenza-infected respiratory droplets were reconstituted as close as possible to natural conditions. We investigated experimentally the survival of influenza A (H3N2) and A (H1N1)pdm09 viruses on human fingers. Infectious virus was easily recoverable on all fingers 1 min after fingertip contamination but then decreased very rapidly. After 30 min, infectious virus was detectable in only a small minority of subjects. Infectious viruses were detected for a longer period of time when droplets of larger size containing a higher number of particles were tested or when the viral concentration increased. A rapid decrease in infectiousness was observed when droplet integrity was disrupted. Our findings could help to set up the promotion of hand hygiene to prevent influenza hand contamination.
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Requirements of emergency control managements on data and information for assessment of the radiological situation in case of a severe accident in a nuclear power plant. KERNTECHNIK 2013. [DOI: 10.3139/124.100348] [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]
Abstract
Abstract
In case of a severe accident in one of the nuclear power plants in northern Germany consequences may reach across the borders of counties and Länder and several local and regional authorities will have responsibilities for disaster response measures. Consistent assessment of the situation and coordinated action are essential for protection of the population and task personnel as effective as possible. Disaster response managements have to come to a comprehensive assessment of the developing radiological situation at an early stage to be able to initiate appropriate protective measures. The results of a working group from several local and regional authorities from Schleswig-Holstein, Hamburg, Lower Saxony and Mecklenburg-West Pomerania on this topic will be presented here. The working group has compiled sets of data and information which are relevant in decision making for protective measures and has developed a concept for the efficient distribution of data and information to the disaster response managements and other recipients with responsibilities in emergency control.
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Abstract
A 15-month-old, spayed female, Bernese mountain dog was presented to the Institute of Small Animal Surgery at the University of Zurich because of chronic left forelimb lameness. The referring veterinarian diagnosed pain in the left shoulder region and had treated the dog with systemic non-steroidal anti-inflammatory drugs and restricted exercise for a two-week period. The follow-up examination revealed only minimal improvement and therefore, the dog was referred for further diagnostic evaluation. Chronic bicipital tenosynovitis and tendinitis of the infraspinatus muscle was diagnosed based on survey radiographs, arthrography, ultrasound, computed tomography (CT), and synovial fluid cytology. The dog underwent three sessions of extracorporeal shockwave therapy and substantial clinical improvement was observed. On follow-up examinations, only mild left forelimb lameness was evident following exercise, and changes in the intertubercular groove and at the supraglenoid tuberosity appeared less active on radiographs and CT. However, six months following treatment, mild degenerative joint disease was apparent.
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Proposal for a new radiological index to determine skull conformation in the dog. SCHWEIZ ARCH TIERH 2012; 154:217-20. [PMID: 22547337 DOI: 10.1024/0036-7281/a000331] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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35
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The architecture of the hierarchical triple star KOI 928 from eclipse timing variations seen in Kepler photometry. ACTA ACUST UNITED AC 2011. [DOI: 10.1111/j.1745-3933.2011.01114.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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36
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Abstract
The epidemiology of Candida infections has changed over the last two decades: The number of patients suffering from such infections has increased dramatically and the Candida species involved have become more numerous as Candida albicans is replaced as an infecting agent by various non-C. albicans species (NAC). At the same time, additional antifungal agents have become available. The different Candida species may vary in their susceptibility for these various antifungals. This draws more attention to in vitro susceptibility testing. Unfortunately, several different test methods exist that may deliver different results. Moreover, clinical breakpoints (CBP) that classify test results into susceptible, intermediate and resistant are controver- sial between CLSI and EUCAST. Therefore, clinicians should be aware that interpretations may vary with the test system being followed by the microbiological laboratory. Thus, knowledge of actual MIC values and pharmacokinetic properties of individual antifungal agents is important in delivering appropriate therapy to patients
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[Revision operation rate after 214 tibial tuberosity advancements as therapy for anterior cruciate ligament tears in dogs]. SCHWEIZ ARCH TIERH 2011; 153:131-3. [PMID: 21360452 DOI: 10.1024/0036-7281/a000168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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38
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Influence of blood pressure and cardiac output on cerebral blood flow and autoregulation in acute stroke measured by TCD. Eur J Neurol 2011. [DOI: 10.1111/j.1468-1331.1996.tb00270.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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2M1938+4603: a rich, multimode pulsating sdB star with an eclipsing dM companion observed with Kepler. ACTA ACUST UNITED AC 2010. [DOI: 10.1111/j.1745-3933.2010.00926.x] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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40
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Autosomal dominant chronic mucocutaneous candidiasis and primary hypothyroidism complicated by oesophageal carcinoma. Clin Exp Dermatol 2009; 34:e818-20. [PMID: 19778308 DOI: 10.1111/j.1365-2230.2009.03561.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
We describe three generations of a white family with autosomal dominant chronic mucocutaneous candidiasis (CMCC) and primary hypothyroidism, which was complicated by squamous cell carcinoma (SCC) of the oesophagus in the index case. We report this family to increase awareness of this rare autosomal dominant variant of CMCC endocrinopathy syndrome associated with primary hypothyroidism without evidence of autoimmune endocrinopathy, and to highlight the risk of developing oesophageal SCC at a young age as a fatal complication of CMCC.
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41
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Kohlendioxyd als Kontrastmittel für die Röntgendarstellung des Herzens und der Gefäße. ROFO-FORTSCHR RONTG 2009. [DOI: 10.1055/s-0029-1213131] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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RECHNERGESTÜTZTE DOSIERUNG VON MEDIKAMENTEN IN DER HARNBLASE MIT HILFE EINES KATHETER-SENSOR-SYSTEMS. BIOMED ENG-BIOMED TE 2009. [DOI: 10.1515/bmte.1995.40.s1.357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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44
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Tibial tuberosity conformation as a risk factor for cranial cruciate ligament rupture in the dog. Vet Comp Orthop Traumatol 2009; 22:16-20. [PMID: 19151865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The influence of the tibial tuberosity conformation on cranial cruciate ligament (CrCl) rupture was evaluated and the size of the tibial tuberosity of healthy dogs (group H) was compared with dogs with CrCl rupture (group R) and dogs treated by tibial tuberosity advancement (TTA) (group T). The medio-lateral radiographs of 219 stifle joints were evaluated. Relative tibial tuberosity width (rTTW), proximal tibial tuberosity angle (PTTA), tibial plateau angle (TPA), tibial width (TW) and tibial plateau length (TPL) were measured on each radiograph. Body weight (BW) was measured and relative body weight (rBW) was calculated. The data from group H was compared with that of group R and group T. Group H had significantly larger rTTW, lower BW, lower rBW and smaller PTTA than group R. A comparison of groups H and T showed that dogs from group H were significantly younger, had a lower BW, a lower rBW, a greater PTTA and a smaller rTTW. In each of the comparisons, the TPA and the TW/TPL were not significantly different. The conformation of the canine tibial tuberosity has a significant influence on CrCl rupture. We hypothesized that the smaller the tibial tuberosity width, the larger the cranial tibial thrust, which results in more rapid CrCL degeneration, thus leading to rupture in a younger population of dogs. The rTTW could be a helpful measurement for breeding selection. Only dogs with a rTTW of more than 0.90 should be used for breeding.
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Invasive meningococcal disease with fatal outcome in a Swiss student visiting Berlin. Euro Surveill 2008; 13:pii: 19031. [PMID: 19000570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023] Open
Abstract
Following the fatal invasive meningococcal disease in a Swiss student who had been visiting Berlin, several public health institutions on local, regional and national level cooperated to ensure that the appropriate measures such as contact tracing and post exposure prophylaxis were taken to prevent further cases. The incidence highlighted the importance of early disease notification and showed that if an infectious disease requiring public health action occurs in an international context, it is vital that relevant information is communicated to all levels of the public health systems of the countries involved.
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Abstract
Following the fatal invasive meningococcal disease in a Swiss student who had been visiting Berlin, several public health institutions on local, regional and national level cooperated to ensure that the appropriate measures such as contact tracing and post exposure prophylaxis were taken to prevent further cases. The incidence highlighted the importance of early disease notification and showed that if an infectious disease requiring public health action occurs in an international context, it is vital that relevant information is communicated to all levels of the public health systems of the countries involved.
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346 POSTER Myofibroblasts and TGF-beta1 induce upregulation of tumoral L1CAM thereby promoting malignant transformation of pancreatic ductal epithelial cells. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)72280-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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49
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Biogene Wasserstofferzeugung durch Immobilisierung von Mikroorganismen in keramischer Matrix. CHEM-ING-TECH 2008. [DOI: 10.1002/cite.200750723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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50
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Transcatheter closure of symptomatic aortopulmonary window in an infant. IMAGES IN PAEDIATRIC CARDIOLOGY 2008; 10:11-7. [PMID: 22368546 PMCID: PMC3232589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
An aortopulmonary window is a rare congenital cardiac defect. In the majority of symptomatic neonates and infants, primary surgical repair is the treatment of choice. In selected infants, catheter closure of the defect with a device may be feasible. We report on the successful closure of an AP window in a 12 month old infant, using a 6mm Amplatzer septal occluder. The procedure and follow-up were uneventful.
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