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Stumpfe F, Weissenbacher T, Kuhn C, Hoffmann S, Heidegger H, Schultz V, Stotz S, Jeschke U, Friese K. Zytokinbestimmung im Verlauf der Schwangerschaft und deren Bedeutung für neonatale Infektionen – Konzentrationsbestimmung der Zytokine IL-6, IL-15, pro-IL-1beta & CXCL10/IP-10. Geburtshilfe Frauenheilkd 2011. [DOI: 10.1055/s-0031-1278602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Silber S, Helms T, Garlichs C, Arntz HR, Weil J, Ince H, Klingenheben T, Hoffmann S, Boudriot E, Steiger H, Zugck C. Prasugrel in der Akut- und Nachbehandlung des akuten Koronarsyndroms: Wie ist der aktuelle Stand? Dtsch Med Wochenschr 2011; 136:782-5. [DOI: 10.1055/s-0031-1272567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Forthomme B, Heymans O, Jacquemin D, Klinkenberg S, Hoffmann S, Grandjean FX, Crielaard JM, Croisier JL. Shoulder function after latissimus dorsi transfer in breast reconstruction. Clin Physiol Funct Imaging 2011; 30:406-12. [PMID: 20633032 DOI: 10.1111/j.1475-097x.2010.00956.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND/AIMS Latissimus dorsi (LD) transfer in the case of breast reconstruction remains frequently used because this muscle provides a good size source of tissue in reconstructive surgery. Given that, the consequences of the LD removal on shoulder function and the actual loss of maximal strength developed must be investigated. METHODS Twenty women (50 ± 7.5 years old) were evaluated before surgery, 3 and 6 months after an unilateral transfer of a pedicle flap of LD muscle used for breast reconstruction. Women performed a bilateral shoulder isokinetic assessment [for the internal rotators (IRs) and external rotators and for the abductor and adductor (ADD) muscles] allowing the establishment of bilateral muscular deficit status and the study of agonist/antagonist muscle ratios. The algofunctional and clinical status of the shoulders was analysed by the means of Constant score and specific shoulder clinical tests. The women did not perform any specific strengthening of muscle shoulder after surgery. RESULTS The isokinetic assessment showed a muscle weakness 3 and 6 months after LD transfer, mainly on the ADDs (33 ± 9% at 6 months) and on the IRs (16 ± 11% at 6 months). The Constant score significantly decreased after surgery on the operated shoulder. Women with a Constant score impairment showed pain during specific shoulder clinical tests. We also found a correlation between Constant score impairment and internal rotators weakness or rotator muscle imbalance. CONCLUSION Given those results, we could advocate a specific shoulder strengthening after LD transfer, focused mainly on the IRs and ADDs.
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Basceri C, Lash SE, Parker CB, Streiffer SK, Kingon AI, Grossmann M, Hoffmann S, Schumacher M, Waser R, Bilodeau S, Carlt R, Van Buskirk PC, Summerfelt SR. An Important Failure Mechanism in MOCVD (Ba,Sr)TiO3 thin Films: Resistance Degradation. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-493-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTWe have investigated the intrinsic resistance degradation behavior of fiber-textured MOCVD (Ba,Sr)TiO3 thin films appropriate for use in advanced DRAMs and integrated decoupling capacitors, as a function of applied voltage polarity, thickness, temperature, and dc bias/field. The results suggest that there is a significant stoichiometry effect on the measured resistance degradation lifetimes. The measured degradation lifetime increases as the Ti content is increased from 51.0 to 52.0 at%Ti, and then decreases with higher at%Ti. Predicted resistance degradation lifetimes obtained from both temperature and voltage extrapolations to DRAM operating conditions of 85°C and 1.6 V exceed the current benchmark of 10 years for all of the films studied.
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Rckert F, Kersting S, Distler M, Hoffmann S, Hoffmann D, Dobrowolski F, Pilarsky C, Saeger H, Grtzmann R. Long-term Results After Pancreaticoduodenectomy For Chronic Pancreatitis. J Surg Res 2011. [DOI: 10.1016/j.jss.2010.11.860] [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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Böhme B, Hoffmann S, Baitinger M, Grin Y. Application of n-Dodecyltrimethylammonium Chloride for the Oxidation of Intermetallic Phases. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2011. [DOI: 10.5560/znb.2011.66b0230] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Hoffmann S, André M, Rodríguez Sańchez A, Mueller R. A new and efficient approach for modeling short fiber reinforced materials within RVEs using an embedded element technique. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pamm.201010199] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Kaspereit F, Hoffmann S, Pragst I, Dickneite G. Prothrombin complex concentrate mitigates diffuse bleeding after cardiopulmonary bypass in a porcine model. Br J Anaesth 2010; 105:576-82. [PMID: 20716565 PMCID: PMC2955534 DOI: 10.1093/bja/aeq216] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Background Extracorporeal circuit priming and intravascular volume expansion during cardiopulmonary bypass (CPB) may lead to dilutional coagulopathy and excessive diffuse postoperative bleeding. Prothrombin complex concentrate (PCC) containing clotting factors II (FII), VII (FVII), IX (FIX), and X (FX) could be of potential value in correcting dilutional coagulopathy and reducing blood loss. Methods Anaesthetized pigs underwent CPB with hypothermia for 2 h at 25°C followed by 1 h of normothermia. Approximately 1 h after CPB, animals randomly received either isotonic saline 1 ml kg−1 or PCC 30 IU kg−1 in a volume of 1 ml kg−1. Diffuse coagulopathic bleeding was assessed as suture hole blood loss from a Gore-Tex patch placed over a full-thickness incision in the left carotid artery. Results After CPB, levels of FII, FVII, FIX, and FX declined from baseline by 32% to 48%, and PCC fully or partially reversed those deficits. Median suture hole blood loss after administration of saline placebo was 74 ml. PCC reduced suture hole bleeding by a median of 54 ml with a 95% confidence interval of 6–112 ml (P=0.026) compared with saline. PCC, but not saline, normalized skin bleeding time. Peak thrombin generation markedly decreased after CPB, but then returned in PCC-treated animals to a level higher than baseline by 28.7 nM (14.5–41.1 nM; P=0.031). Conclusions PCC was effective in correcting dilutional coagulopathy and reducing diffuse bleeding in an in vivo large-animal CPB model. Further research is warranted on PCC as a haemostatic agent in CPB.
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Braun J, Hoffmann S, Feldner A, Hecker M, Korff T. MS128 ENDOTHELIAL ephrinB2 STIMULATES DIAPEDESIS AND PRO-INFLAMMATORY ACTIVATION OF MONOCYTES AT ATHEROSCLEROSIS-PRONE SITES. ATHEROSCLEROSIS SUPP 2010. [DOI: 10.1016/s1567-5688(10)70629-2] [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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Hoffmann S. Ensuring food safety around the globe: the many roles of risk analysis from risk ranking to microbial risk assessment. RISK ANALYSIS : AN OFFICIAL PUBLICATION OF THE SOCIETY FOR RISK ANALYSIS 2010; 30:711-714. [PMID: 20604878 DOI: 10.1111/j.1539-6924.2010.01437.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
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Scholz I, Bückins M, Dolge L, Erlinghagen T, Weth A, Hischen F, Mayer J, Hoffmann S, Riederer M, Riedel M, Baumgartner W. Slippery surfaces of pitcher plants: Nepenthes wax crystals minimize insect attachment via microscopic surface roughness. J Exp Biol 2010; 213:1115-25. [DOI: 10.1242/jeb.035618] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
SUMMARY
Pitcher plants of the genus Nepenthes efficiently trap and retain insect prey in highly specialized leaves. Besides a slippery peristome which inhibits adhesion of insects they employ epicuticular wax crystals on the inner walls of the conductive zone of the pitchers to hamper insect attachment by adhesive devices. It has been proposed that the detachment of individual crystals and the resulting contamination of adhesive organs is responsible for capturing insects. However, our results provide evidence in favour of a different mechanism, mainly based on the stability and the roughness of the waxy surface. First, we were unable to detect a large quantity of crystal fragments on the pads of insects detached from mature pitcher surfaces of Nepenthes alata. Second, investigation of the pitcher surface by focused ion beam treatment showed that the wax crystals form a compact 3D structure. Third, atomic force microscopy of the platelet-shaped crystals revealed that the crystals are mechanically stable, rendering crystal detachment by insect pads unlikely. Fourth, the surface profile parameters of the wax layer showed striking similarities to those of polishing paper with low grain size. By measuring friction forces of insects on this artificial surface we demonstrate that microscopic roughness alone is sufficient to minimize insect attachment. A theoretical model shows that surface roughness within a certain length scale will prevent adhesion by being too rough for adhesive pads but not rough enough for claws.
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Weber YG, Roebling R, Kassubek J, Hoffmann S, Rosenbohm A, Wolf M, Steinbach P, Jurkat-Rott K, Walter H, Reske SN, Lehmann-Horn F, Mottaghy FM, Lerche H. Comparative analysis of brain structure, metabolism, and cognition in myotonic dystrophy 1 and 2. Neurology 2010; 74:1108-17. [DOI: 10.1212/wnl.0b013e3181d8c35f] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Hoffmann S, Mogelvang R, Olsen NT, Sogaard P, Fritz-Hansen T, Bech J, Galatius S, Madsen JK, Jensen JS. Tissue Doppler echocardiography reveals distinct patterns of impaired myocardial velocities in different degrees of coronary artery disease. EUROPEAN JOURNAL OF ECHOCARDIOGRAPHY 2010; 11:544-9. [DOI: 10.1093/ejechocard/jeq015] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Blum T, Sybrecht GW, Hoffmann S, Pociuli O, Kollmeier J, Bauer TT. Das Berliner Spirozelt – Ergebnisse der großen Spirometrie-Aktion für jedermann anläßlich der ERS-Tagung 2008. Pneumologie 2010. [DOI: 10.1055/s-0030-1251305] [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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Langenberger D, Bermudez-Santana CI, Stadler PF, Hoffmann S. Identification and classification of small RNAs in transcriptome sequence data. PACIFIC SYMPOSIUM ON BIOCOMPUTING. PACIFIC SYMPOSIUM ON BIOCOMPUTING 2010:80-7. [PMID: 19908360 DOI: 10.1142/9789814295291_0010] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Current methods for high throughput sequencing (HTS) for the first time offer the opportunity to investigate the entire transcriptome in an essentially unbiased way. In many species, small non-coding RNAs with specific secondary structures constitute a significant part of the transcriptome. Some of these RNA classes, in particular microRNAs and snoRNAs, undergo maturation processes that lead to the production of shorter RNAs. After mapping the sequences to the reference genome specific patterns of short reads can be observed. These read patterns seem to reflect the processing and thus are specific for the RNA transcripts of which they are derived from. We explore here the potential of short read sequence data in the classification and identification of non-coding RNAs.
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Hoffmann S, Harder W. Food safety and risk governance in globalized markets. HEALTH MATRIX (CLEVELAND, OHIO : 1991) 2010; 20:5-54. [PMID: 20862924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
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Cooling L, Hoffmann S, Herrst M, Muck C, Armelagos H, Davenport R. A prospective randomized trial of two popular mononuclear cell collection sets for autologous peripheral blood stem cell collection in multiple myeloma. Transfusion 2010; 50:100-19. [DOI: 10.1111/j.1537-2995.2009.02350.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Savage EJ, van de Laar MJ, Gallay A, van der Sande M, Hamouda O, Sasse A, Hoffmann S, Diez M, Borrego MJ, Lowndes CM, Ison C. Lymphogranuloma venereum in Europe, 2003-2008. ACTA ACUST UNITED AC 2009; 14. [PMID: 20003898 DOI: 10.2807/ese.14.48.19428-en] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Lymphogranuloma venereum, caused by the L serovars of Chlamydia trachomatis, emerged in Europe in 2003 and a series of outbreaks were reported in different countries. The infection presents as a severe proctitis in men who have sex with men, many of whom are co-infected with HIV and other sexually transmitted infections. This paper reviews the number of cases reported over a five year period, from 2003 to 2008, from countries that were part of the European Surveillance of Sexually Transmitted Infections (ESSTI) network. Reports were received from Belgium, Denmark, France, Germany, the Netherlands, Portugal, Spain, Sweden, and the United Kingdom. It appears that after five years the characteristics of the patients infected has overall remained unchanged, although the total number of cases has increased and more countries in Europe have now identified cases of LGV.
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Griesinger C, Hoffmann S, Kinsner A, Coecke S, Hartung T. 5.4 Possible improvement of information sources on hazard and risk. Hum Exp Toxicol 2009; 28:157. [PMID: 19713388 DOI: 10.1177/0960327109105780] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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171
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Griesinger C, Hoffmann S, Kinsner A, Coecke S, Hartung T. Special issue: Evidence-based toxicology (EBT). Preface. Hum Exp Toxicol 2009; 28:83-6. [PMID: 19713366 DOI: 10.1177/0960327109105753] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Hoffmann S. Solidarität im Alltag? Zum Wandel präventiver Verhaltensstile im 20. Jahrhundert. DAS GESUNDHEITSWESEN 2009. [DOI: 10.1055/s-0029-1239162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Griesinger C, Hoffmann S, Kinsner A, Coecke S, Hartung T. 5 Steps toward an evidence-based toxicology. Hum Exp Toxicol 2009; 28:151. [DOI: 10.1177/0960327109105777] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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175
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Griesinger C, Hoffmann S, Kinsner A, Coecke S, Hartung T. 4.8 Current schemes for decision-making in toxicology. Hum Exp Toxicol 2009; 28:147. [DOI: 10.1177/0960327109105775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Akhyari P, Ziegler H, Mambou P, Barth M, Hoffmann S, Kamiya H, Suprunov M, Berger I, Franke WW, Karck M, Lichtenberg A. Impact of protein coating strategies on the re-endothelialization of biological heart valve scaffolds. Thorac Cardiovasc Surg 2009. [DOI: 10.1055/s-0029-1191619] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Stadler PF, Chen JJL, Hackermuller J, Hoffmann S, Horn F, Khaitovich P, Kretzschmar AK, Mosig A, Prohaska SJ, Qi X, Schutt K, Ullmann K. Evolution of Vault RNAs. Mol Biol Evol 2009; 26:1975-91. [DOI: 10.1093/molbev/msp112] [Citation(s) in RCA: 114] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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Kozma P, Kiss E, Hoffmann S, Galbács ZS, Dula T. USING THE POWDERY MILDEW RESISTANT MUSCADINIA ROTUNDIFOLIA AND VITIS VINIFERA 'KISHMISH VATKANA' FOR BREEDING NEW CULTIVARS. ACTA HORTICULTURAE 2009:559-564. [PMID: 0 DOI: 10.17660/actahortic.2009.827.97] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
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Hoffmann S, Henrichsen J, Schmidt K. Incidence and diagnosis of acute rheumatic fever in Denmark, 1980 and 1983. A retrospective analysis of the fulfillment of the revised Jones criteria in hospitalized patients. ACTA MEDICA SCANDINAVICA 2009; 224:587-94. [PMID: 3061291 DOI: 10.1111/j.0954-6820.1988.tb19631.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A review of 1547 official hospital record summaries concerning discharges during the period 1980 through 1983 of patients whose diagnoses had been coded as acute rheumatic fever revealed that in only 61% of the cases had this illness been diagnosed or suspected. A substantial proportion of the remaining patients had had acute non-rheumatic pericarditis diagnosed. The medical records were analyzed for 141 patients diagnosed in 1980 or 1983 by hospital departments as having acute rheumatic fever with regard to the revised Jones criteria. They were fulfilled in 47 patients, 23 of whom were considered unlikely cases of rheumatic fever. Eight patients were considered possible cases, although they did not fulfill the revised Jones criteria. The current annual incidence of acute rheumatic fever was estimated to be at most 0.3 per 100,000 inhabitants.
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Friis H, Hoffmann S, Hansen M, Hansen MM, Justesen T, Nissen NI. Cefotaxime versus ampicillin, methicillin and netilmicin in combination for treatment of febrile episodes in patients with haematologic malignancy. ACTA MEDICA SCANDINAVICA 2009; 213:345-9. [PMID: 6308965 DOI: 10.1111/j.0954-6820.1983.tb03749.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A prospective, randomized trial comparing treatment of 61 febrile episodes with cefotaxime (CTX) versus a combination of ampicillin, methicillin, and netilmicin (AMN) was carried out in 58 patients with leukaemia or malignant lymphoma, of whom 28 had a granulocyte count of less than or equal to 500 X 10(6)/l. The overall response frequency was 63% for CTX against 49% for the AMN combination, the latter figure being lower than generally reported in the literature. The difference was not statistically significant. In 21 episodes pathogens were isolated, 16 of them from the blood. All isolated bacteria but one, a strain of Bacteroides fragilis, were fully sensitive to at least one of the three antibiotics in the combination, and all but one, a strain of Listeria monocytogenes, were fully sensitive to CTX. These results indicate that CTX seems to be a promising alternative as monotherapy for empiric treatment of febrile episodes in patients with haematologic malignancies. Further investigations will, however, be required before completely rational choices between mono and combination therapy of febrile episodes in immunosuppressed patients can be made.
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Battersby M, Hoffmann S, Cadilhac D, Osborne R, Lalor E, Lindley R. ‘Getting your Life Back on Track after Stroke’: A Phase II Multi-Centered, Single-Blind, Randomized, Controlled Trial of the Stroke Self-Management Program Vs. the Stanford Chronic Condition Self-Management Program or Standard Care in Stroke Survivors. Int J Stroke 2009; 4:137-44. [DOI: 10.1111/j.1747-4949.2009.00261.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Background Self-management is seen as a primary mechanism to support the optimization of care for people with chronic diseases such as symptomatic vascular disease. There are no established and evidence-based stroke-specific chronic disease self-management programs. Our aim is to evaluate whether a stroke-specific program is safe and feasible as part of a Phase II randomized-controlled clinical trial. Methods Stroke survivors are recruited from a variety of sources including: hospital stroke services, local paper advertisements. Stroke South Australia newsletter (volunteer peer support organization), Divisions of General Practice, and community service providers across Adelaide, South Australia. Subjects are invited to participate in a multi-center, single-blind, randomized, controlled trial. Eligible participants are randomized to either; standard care, standard care plus a six week generic chronic condition self-management group education program, or, standard care plus an eight week stroke specific self-management education group program. Interventions are conducted after discharge from hospital. Participants are assessed at baseline, immediate post intervention and six months. Study Outcomes The primary outcome measures determine study feasibility and safety, measuring, recruitment, participation, compliance and adverse events. Secondary outcomes include: positive and active engagement in life measured by the Health Education Impact Questionnaire, improvements in quality of life measured by the Assessment of Quality of Life instrument, improvements in mood measured by the Irritability, Depression and Anxiety Scale, health resource utilization measured by a participant held diary and safety. Conclusion The results of this study will determine whether a definitive Phase III efficacy trial is justified.
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Hoffmann S, Bauer J, Ronning C, Stelzner T, Michler J, Ballif C, Sivakov V, Christiansen SH. Axial p-n junctions realized in silicon nanowires by ion implantation. NANO LETTERS 2009; 9:1341-1344. [PMID: 19256535 DOI: 10.1021/nl802977m] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The electrical properties of vertically aligned silicon nanowires doped by ion implantation are studied in this paper by a combination of electron beam-induced current imaging and two terminal current-voltage measurements. By varying the implantation parameters in several process steps, uniform p- and n-doping profiles as well as p-n junctions along the nanowire axis are realized. The effective doping is demonstrated by electron beam-induced current imaging on single nanowires, and current-voltage measurements show their well-defined rectifying behavior.
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Westhoff CC, Hoffmann S, Barth PJ. Clear cell follicular adenoma of the thyroid--a challenge in intra-operative diagnostics. Exp Clin Endocrinol Diabetes 2009; 118:19-21. [PMID: 19235130 DOI: 10.1055/s-0028-1102945] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Pure clear cell lesions of the thyroid gland are rare and prone to pose severe diagnostic challenges. We report the case of a 61-year-old man with a clear cell adenoma of the thyroid. The patient presented with a hypoechoic thyroid nodule. Fine needle aspiration cytology rendered the primary diagnosis of a follicular neoplasia, and right thyroid lobectomy was performed. By intra-operative frozen section, the diagnosis given was clear cell lesion of unknown malignant potential. Based on the light microscopic findings and the immunohistochemical profile, the lesion was diagnosed as clear cell follicular adenoma of the thyroid. A follicular thyroid lesion presenting with clear cell changes in fine needle aspiration cytology or intra-operative frozen section consultation constitutes a diagnostic challenge to every surgical pathologist. As immunohistochemistry of cytologic specimens is hampered by several methodological problems, any thyroid lesion with clear cell features warrants further histologic assessment to render the correct diagnosis.
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Griesinger C, Hoffmann S, Kinsner A, Coecke S, Hartung T. 4.9 Current information sources for hazard identification. Hum Exp Toxicol 2009; 28:149. [DOI: 10.1177/0960327109105776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Griesinger C, Hoffmann S, Kinsner A, Coecke S, Hartung T. 5.3 Evidence-based tools in toxicological decision-making. Hum Exp Toxicol 2009; 28:155. [DOI: 10.1177/0960327109105779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Griesinger C, Hoffmann S, Kinsner A, Coecke S, Hartung T. 5.2 Evidence-based tools in toxicological hazard identification. Hum Exp Toxicol 2009; 28:153. [DOI: 10.1177/0960327109105778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kinsner A, Griesinger C, Hoffmann S, Coecke S, Bowe G, Campana C, Hartung T. 5.6 An online portal to evidence-based toxicology. Hum Exp Toxicol 2009; 28:161. [DOI: 10.1177/0960327109105782] [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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Huber K, Hoffmann S, Richter-Appelt H. „Innen drinnen bin ich keine richtige Frau!?“ Stand der psychosomatischen Forschung zum Mayer-Rokitansky-Küster-Hauser Syndrom. Geburtshilfe Frauenheilkd 2009. [DOI: 10.1055/s-0029-1208277] [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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Hoffmann S, Huber K, Richter-Appelt H. Die Diagnose beruht nur auf Indizien ... Das Polyzystische Ovarsyndrom (PCOS) in der psychosomatischen Forschung: Methodische Probleme und Lösungsansätze. Geburtshilfe Frauenheilkd 2009. [DOI: 10.1055/s-0029-1208278] [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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190
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Scheibye-Alsing K, Hoffmann S, Frankel A, Jensen P, Stadler PF, Mang Y, Tommerup N, Gilchrist MJ, Nygård AB, Cirera S, Jørgensen CB, Fredholm M, Gorodkin J. Sequence assembly. Comput Biol Chem 2008; 33:121-36. [PMID: 19152793 DOI: 10.1016/j.compbiolchem.2008.11.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2008] [Revised: 11/28/2008] [Accepted: 11/28/2008] [Indexed: 01/20/2023]
Abstract
Despite the rapidly increasing number of sequenced and re-sequenced genomes, many issues regarding the computational assembly of large-scale sequencing data have remain unresolved. Computational assembly is crucial in large genome projects as well for the evolving high-throughput technologies and plays an important role in processing the information generated by these methods. Here, we provide a comprehensive overview of the current publicly available sequence assembly programs. We describe the basic principles of computational assembly along with the main concerns, such as repetitive sequences in genomic DNA, highly expressed genes and alternative transcripts in EST sequences. We summarize existing comparisons of different assemblers and provide a detailed descriptions and directions for download of assembly programs at: http://genome.ku.dk/resources/assembly/methods.html.
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191
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von Hunolstein C, Gomez Miguel MJ, Pezzella C, Scopetti F, Behr-Gross ME, Halder M, Hoffmann S, Levels L, van der Gun J, Hendriksen C. Evaluation of two serological methods for potency testing of whole cell pertussis vaccines. PHARMEUROPA BIO 2008; 2008:7-18. [PMID: 19220977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The European Pharmacopoeia (Ph. Eur.) and the World Health Organization (WHO) require the performance of extensive quality control testing including a potency test before a vaccine batch is released for human use. Whole cell pertussis (wP) vaccine potency is assessed by a mouse protection test (MPT) based on the Kendrick test. This test compares the vaccine dose necessary to protect 50% of mice against the effect of a lethal intracerebral dose of Bordetella pertussis and the dose of a suitable reference vaccine needed to give the same protection level. Due to the large variability in the results of this test and the severe distress which is inflicted on the many animals involved, its replacement by an alternative method is highly desirable. At the initiative of the European Directorate for the Quality of Medicines and HealthCare (EDQM) of the Council of Europe, in collaboration with the WHO and the In-vitro toxicology Unit/European Centre for the Validation of Alternative Methods (ECVAM) of the European Commission (EC) Joint Research Centre-Institute for Health and Consumer Protection (JRC-IHCP), wP vaccine specialists from all over the world were invited to present an overview of candidate alternatives at a symposium organised in Geneva (Switzerland) in March 2005. Although no alternative method was found suitable for immediate implementation of batch potency control, the Pertussis Serological Potency Test (PSPT), initially developed in mice and recently transferred to guinea pigs (gps), was identified as a model of interest. Using the PSPT in gps to test several components of combined vaccines such as Diphtheria-Tetanus-wP vaccines in the same animal series would allow further implementation of the European 3Rs policy to batch potency control, by additional method refinement and reduction of animal use. The present study evaluated 2 features of the serological response to wP vaccination: 1) the overall antibody response as measured by a "whole cell" ELISA (PSPT-wC-ELISA) which uses the B. pertussis 18323 challenge strain prescribed for the MPT to coat the assay plates and 2) the functional neutralising antibodies to pertussis toxin (PT, one of the main virulence factors of B. pertussis), as measured by the Chinese Hamster Ovary (CHO) cell assay. The results showed that 1) the gp model can be used for wP vaccine potency testing; 2) despite good repeatability and precision, the CHO cell assay did not generate results comparable to the MPT. Moreover, the CHO cell assay showed significant differences in the ability of wP vaccines to induce neutralising anti-PT antibodies, which did not correlate to the overall antibody response evaluated by PSPT-wC-ELISA; 3) comparable potencies were obtained in the MPT and the PSPT-wC-ELISA. This study, supported by the previous ones correlating the PSPT-wC-ELISA in mice with the MPT, confirms that PSPT-wC-ELISA in gps is a promising approach for batch release potency testing of wP vaccines for which consistency in production has already been demonstrated by the MPT. However, a large scale validation study is required prior to the adoption of PSPT-wC-ELISA as a compendial reference method for wP vaccines batch release control.
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192
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Leutscher P, Ramarokoto C, Hoffmann S, Jensen J, Ramaniraka V, Randrianasolo B, Raharisolo C, Migliani R, Christensen N. Coexistence of Urogenital Schistosomiasis and Sexually Transmitted Infection in Women and Men Living in an Area WhereSchistosoma haematobiumIs Endemic. Clin Infect Dis 2008; 47:775-82. [DOI: 10.1086/591127] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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193
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Roebling R, Weber Y, Kassubek J, Hoffmann S, Rosenbohm A, Gostomzyk J, Wolf M, Vogel W, Steinbach P, Walter H, Reske S, Lehmann-Horn F, Mottaghy F, Lerche H. Structural and functional abnormalities of the brain in myotonic dystrophy type 1 (MD1) and 2 (MD2). AKTUELLE NEUROLOGIE 2008. [DOI: 10.1055/s-0028-1086530] [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]
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194
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Spies H, Pietzsch HJ, Syhre R, Hoffmann S. Lipophilic Technetium Complexes. VIII. Preparation and Animal Studies of Oxotechnetium(V) Complexes with Tridentate/monodentate Ligand Coordination. ACTA ACUST UNITED AC 2008. [DOI: 10.1080/10256019008624264] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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195
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Veras R, Kriwalsky M, Hoffmann S, Maurer P, Schubert J. Functional and radiographic long-term results after bad split in orthognathic surgery. Int J Oral Maxillofac Surg 2008; 37:606-11. [DOI: 10.1016/j.ijom.2008.04.010] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2007] [Revised: 01/14/2008] [Accepted: 04/11/2008] [Indexed: 11/26/2022]
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196
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Hoffmann S, Freitag P, Frede S, Fandrey J. Leukocyte reprogramming mimics HIF-1a knock out. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)71826-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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197
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Karakas E, Osei-Agyemang T, Schlosser K, Hoffmann S, Zielke A, Rothmund M, Hassan I. The impact of parathyroid gland autotransplantation during bilateral thyroid surgery for Graves' disease on postoperative hypocalcaemia. Endocr Regul 2008; 42:39-44. [PMID: 18624611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
OBJECTIVE The aim of this study was to compare the rate of hypocalcaemia after bilateral thyroid resection for Graves' Disease in patients with and without parathyroid gland autotransplantation (PTAT). PATIENTS AND METHODS A total of 153 patients following thyroid surgery for Graves' disease were studied. Patients were divided into three groups. Subgroup I comprised of 129 patients without PTAT, Subgroup II comprised of 19 patients with PTAT of one parathyroid gland and Subgroup III comprised of 6 patients with PTAT of two parathyroid glands. Association between PTAT and postoperative hypocalcaemia (PH) after thyroidectomy was investigated. RESULTS There were 27/128 (21.1%) patients with transient and 10/128 (7.8%) patients with permanent hypocalcemia within Subgroup I. Among Subgroup II 4/19 (21.1%) patients developed transient and no patient developed permanent hypocalcaemia, while in Subgroup III 2/6 (33.3 %) patients developed transient hypocalcaemia which became persistent. Thus, the frequency of permanent postthyroidectomy hypocalcaemia (PH) was significantly higher in the Subgroup III with PTAT of two parathyroid glands when compared to the Subgroup I without PTAT (p=0.032) and Subgroup II with PTAT of only one parathyroid glands (p=0.012). CONCLUSION PTAT of one parathyroid gland is an effective procedure to reduce the incidence of permanent hypoparathyroidism after bilateral surgery for Graves disease. Transient hypoparathyroidism was not influenced by PTAT.
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Hoffmann S, Kuhn H, Georgi S, Maser F, Hammerschmidt S, Wirtz H. Der Einfluss zyklischer Dehnung verschiedener Lungenzelltypen auf Zellvitalität und den PI3K/Akt-Signalweg. Pneumologie 2008. [DOI: 10.1055/s-2008-1074237] [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]
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Ponti J, Munaro B, Fischbach M, Hoffmann S, Sabbioni E. An optimised data analysis for the Balb/c 3T3 cell transformation assay and its application to metal compounds. Int J Immunopathol Pharmacol 2008; 20:673-84. [PMID: 18179740 DOI: 10.1177/039463200702000403] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The Balb/c3T3 cell transformation assay (CTA) is an available in vitro system to detect the carcinogenic potential of chemicals. Currently, the European Centre for the Validation of Alternative Methods (ECVAM) is validating this test, assessing its reliability and relevance. Its endpoint is the formation of type III foci, which is, when using clone A31-1-1, a very rare event that usually does not occur at all for negative controls. The carcinogenic potential of a compound tested is assessed by comparing the number of foci in treated and untreated cells. The objective of the present work is to optimise the data analysis for this endpoint by applying the most commonly used approach by a t-test and the Fisher's exact test as an alternative approach. For this purpose selected metal compounds classified as carcinogenic (NaAsO2, CdCl2, cisPt), as suspected carcinogenic (C6H5)4AsCl, CH3HgCl), or as compounds without evidence of carcinogenic properties in humans ((NH4)2PtCl6, NaVO3) as well as a non-carcinogenic (AgNO3) were analysed. Our evaluation revealed that the t-test approach, which assumes normality of data, is not appropriate. The results demonstrated that the statistical analysis by Fisher's exact test, better reflecting the data properties, greatly facilitates the interpretation of Balb/c3T3 CTA data regarding carcinogenic potential.
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Pfau T, Hoffmann S, Adamczyk O, Peveling R, Herath V, Porrmann M, Noé R. Coherent optical communication: towards realtime systems at 40 Gbit/s and beyond. OPTICS EXPRESS 2008; 16:866-872. [PMID: 18542160 DOI: 10.1364/oe.16.000866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Coherent optical communication systems promise superior performance, but their realization in real time also poses big technical challenges. After an introduction the potential of coherent optical transmission systems is shown as manifested in offline experiments. Then we present key components that are necessary to realize these systems in real time. We review recent achievements in realtime coherent communication and finally present the results of a realtime QPSK transmission system with a 3x3 coupler in the receiver. The achieved BER at a data rate of 1.4 Gbit/s is well below the FEC threshold.
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