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Schneidt M, Kovacevic M, Thiele J, Jakobi A, Haase R, Makocki S, Krause M, Hölscher T, Richter C. PO-0946: Prospective evaluation of patient positioning for interfractional variation in proton therapy of prostate cancer. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)40938-7] [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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127
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Trojahn C, Dobos G, Richter C, Blume-Peytavi U, Kottner J. Measuring skin aging using optical coherence tomography in vivo: a validation study. JOURNAL OF BIOMEDICAL OPTICS 2015; 20:045003. [PMID: 25875627 DOI: 10.1117/1.jbo.20.4.045003] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 03/26/2015] [Indexed: 06/04/2023]
Abstract
Dermal and epidermal structures in human skin change during intrinsic and extrinsic aging. Epidermal thickness is one of the most often reported parameters for the assessment of skin aging in cross-sectional images captured by optical coherence tomography (OCT). We aimed to identify further parameters for the noninvasive measurement of skin aging of sun-exposed and sun-protected areas utilizing OCT. Based on a literature review, seven parameters were inductively developed. Three independent raters assessed these parameters using four-point scales on images of female subjects of two age groups. All items could be detected and quantified in our sample. Interrater agreement ranged between 25.0% and 83.3%. The item scores “stratum corneum reflectivity,” “upper dermal reflectivity,” and “dermoepidermal contrast” showed significant differences between age groups on the volar and dorsal forearm indicating that they were best able to measure changes during skin aging. “Surface unevenness” was associated with the skin roughness parameters, Rz and Rmax, on the inner upper arm and volar forearm supporting the criterion validity of this parameter on sun-protected skin areas. Based on the interrater agreement and the ability to differentiate between age groups, these four parameters are being considered as the best candidates for measuring skin aging in OCT images.
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Jakobi A, Bandurska-Luque A, Stützer K, Haase R, Löck S, Wack L, Mönnich D, Thorwarth D, Kovacevic M, Perez D, Lühr A, Zips D, Krause M, Baumann M, Perrin R, Richter C. PO-0898: Identification of individual NTCP benefit of dose-escalated IMPT in advanced HNC patients. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)40890-4] [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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129
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Swartz JE, Vandekerckhove L, Ammerlaan H, de Vries AC, Begovac J, Bierman WFW, Boucher CAB, van der Ende ME, Grossman Z, Kaiser R, Levy I, Mudrikova T, Paredes R, Perez-Bercoff D, Pronk M, Richter C, Schmit JC, Vercauteren J, Zazzi M, Židovec Lepej S, De Luca A, Wensing AMJ. Efficacy of tenofovir and efavirenz in combination with lamivudine or emtricitabine in antiretroviral-naive patients in Europe. J Antimicrob Chemother 2015; 70:1850-7. [PMID: 25740950 DOI: 10.1093/jac/dkv033] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 01/25/2015] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND The combination of tenofovir and efavirenz with either lamivudine or emtricitabine (TELE) has proved to be highly effective in clinical trials for first-line treatment of HIV-1 infection. However, limited data are available on its efficacy in routine clinical practice. METHODS A multicentre cohort study was performed in therapy-naive patients initiating ART with TELE before July 2009. Efficacy was studied using ITT (missing or switch = failure) and on-treatment (OT) analyses. Genotypic susceptibility scores (GSSs) were determined using the Stanford HIVdb algorithm. RESULTS Efficacy analysis of 1608 patients showed virological suppression to <50 copies/mL at 48 weeks in 91.5% (OT) and 70.6% (ITT). Almost a quarter of all patients (22.9%) had discontinued TELE at week 48, mainly due to CNS toxicity. Virological failure within 48 weeks was rarely observed (3.3%, n = 53). In multilevel, multivariate analysis, infection with subtype B (P = 0.011), baseline CD4 count <200 cells/mm³ (P < 0.001), GSS <3 (P = 0.002) and use of lamivudine (P < 0.001) were associated with a higher risk of virological failure. After exclusion of patients using co-formulated compounds, virological failure was still more often observed with lamivudine. Following virological failure, three-quarters of patients switched to a PI-based regimen with GSS <3. After 1 year of second-line therapy, viral load was suppressed to <50 copies/mL in 73.5% (OT). CONCLUSIONS In clinical practice, treatment failure on TELE regimens is relatively frequent due to toxicity. Virological failure is rare and more often observed with lamivudine than with emtricitabine. Following virological failure on TELE, PI-based second-line therapy was often successful despite GSS <3.
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Lowe SH, Wensing AMJ, Hassink EAM, ten Kate RW, Richter C, Schreij G, Koopmans PP, Juttmann JR, van der Tweel I, Lange JMA, Borleffs JCC. Comparison of Two Once-Daily Regimens with a Regimen Consisting of Nelfinavir, Didanosine, and Stavudine in Antiretroviral Therapy-Naïve Adults: 48-Week Results from the Antiretroviral Regimen Evaluation Study (ARES). HIV CLINICAL TRIALS 2015; 6:235-45. [PMID: 16306030 DOI: 10.1310/a686-m37y-j2pt-e9gj] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND To improve the dosing frequency and pill burden of antiretroviral therapy, we compared two once-daily dosed regimens to a twice-daily dosed regimen. METHOD HIV-1-infected, antiretroviral drug-naïve adults were randomized to either twice-daily nelfinavir and stavudine and once-daily didanosine (regimen A) or simplified once-daily dosed antiretroviral regimens consisting of nevirapine, didanosine, and lamivudine (regimen B) or saquinavir, ritonavir, didanosine, and lamivudine (regimen C). RESULTS At 48 weeks of therapy, the proportion of patients with a blood plasma HIV-1 RNA concentration (pVL) <50 copies/mL by intention-to treat analysis was 42.3%, 50.0%, and 56.5% for regimens A (n = 26), B (n = 22), and C (n = 23), respectively. The time to a pVL <50 copies/mL for the first time was significantly shorter in regimen C, and there was significantly more progression to CDC events in regimen B. These differences are possibly due to differences in baseline characteristics. Adverse events were lowest for regimen C; more signs associated with mitochondrial toxicity occurred in regimen A. Increase in CD4 count was comparable between arms. CONCLUSION No statistically significant difference in efficacy was found between the two investigated once-daily dosed treatment regimens (B and C) and the reference (A). Regimen C possibly had a better virological response and less toxicity than regimens A and B.
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Kottner J, Hahnel E, Trojahn C, Stroux A, Dobos G, Lichterfeld A, Richter C, Blume-Peytavi U. A multi-center prevalence study and randomized controlled parallel-group pragmatic trial to compare the effectiveness of standardized skin care regimens on skin health in nursing home residents: A study protocol. Int J Nurs Stud 2015; 52:598-604. [DOI: 10.1016/j.ijnurstu.2014.11.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 11/05/2014] [Accepted: 11/07/2014] [Indexed: 01/28/2023]
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Wall M, Putchim L, Schmidt GM, Jantzen C, Khokiattiwong S, Richter C. Large-amplitude internal waves benefit corals during thermal stress. Proc Biol Sci 2015; 282:20140650. [PMID: 25473004 PMCID: PMC4286055 DOI: 10.1098/rspb.2014.0650] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Accepted: 11/12/2014] [Indexed: 11/12/2022] Open
Abstract
Tropical scleractinian corals are particularly vulnerable to global warming as elevated sea surface temperatures (SSTs) disrupt the delicate balance between the coral host and their algal endosymbionts, leading to symbiont expulsion, mass bleaching and mortality. While satellite sensing of SST has proved a reliable predictor of coral bleaching at the regional scale, there are large deviations in bleaching severity and mortality on the local scale that are poorly understood. Here, we show that internal waves play a major role in explaining local coral bleaching and mortality patterns in the Andaman Sea. Despite a severe region-wide SST anomaly in May 2010, frequent upslope intrusions of cold sub-pycnocline waters due to breaking large-amplitude internal waves (LAIW) mitigated coral bleaching and mortality in shallow waters. In LAIW-sheltered waters, by contrast, bleaching-susceptible species suffered severe bleaching and total mortality. These findings suggest that LAIW benefit coral reefs during thermal stress and provide local refugia for bleaching-susceptible corals. LAIW are ubiquitous in tropical stratified waters and their swash zones may thus be important conservation areas for the maintenance of coral diversity in a warming climate. Taking LAIW into account can significantly improve coral bleaching predictions and provide a valuable tool for coral reef conservation and management.
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Zhang S, van Sighem A, Kesselring A, Gras L, Prins JM, Hassink E, Kauffmann R, Richter C, de Wolf F, Reiss P. Risk of non-AIDS-defining events among HIV-infected patients not yet on antiretroviral therapy. HIV Med 2015; 16:265-72. [PMID: 25604160 DOI: 10.1111/hiv.12202] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/06/2014] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Certain non-AIDS-related diseases have been associated with immunodeficiency and HIV RNA levels in HIV-infected patients on combination antiretroviral therapy (cART). We aimed to investigate these associations in patients not yet on cART, when potential antiretroviral-drug-related effects are absent and variation in RNA levels is greater. METHODS Associations between, on the one hand, time-updated CD4 counts and plasma HIV RNA and, on the other hand, a composite non-AIDS-related endpoint, including major cardiovascular diseases, liver fibrosis/cirrhosis, and non-AIDS-related malignancies, were studied with multivariate Poisson regression models in 12 800 patients diagnosed with HIV infection from 1998 onwards while not yet treated with cART. RESULTS During 18 646 person-years of follow-up, 203 non-AIDS-related events occurred. Compared with a CD4 count ≥ 500 cells/μL, adjusted relative risks (RRs) for the composite endpoint were 4.71 [95% confidence interval (CI) 2.98-7.45] for a CD4 count < 200 cells/μL, 2.06 (95% CI 1.38-3.06) for a CD4 count of 200-349 cells/μL, and 1.19 (95% CI 0.82-1.74) for a CD4 count of 350-499 cells/μL. There was no evidence for an independent association with HIV RNA. Other important covariates were age [RR 1.40 (95% CI 1.31-1.49) per 5 years older], hepatitis B virus coinfection [RR 5.66 (95% CI 3.87-8.28)] and hepatitis C virus coinfection [RR 9.26 (95% CI 6.04-14.2)]. CONCLUSIONS In persons not yet receiving cART, a more severe degree of immunodeficiency rather than higher HIV RNA levels appears to be associated with an increased risk of our composite non-AIDS-related endpoint. Larger studies are needed to address these associations for individual non-AIDS-related events.
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Hatje LK, Richter C, Blume-Peytavi U, Kottner J. Blistering time as a parameter for the strength of dermoepidermal adhesion: a systematic review and meta-analysis. Br J Dermatol 2014; 172:323-30. [PMID: 25065915 DOI: 10.1111/bjd.13298] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/21/2014] [Indexed: 01/02/2023]
Abstract
Skin ageing is associated with a flattening of the dermoepidermal junction and a less effective anchoring system, predisposing to bulla formation, trauma and shear-type injuries. An artificial and controlled technique for standardized dermoepidermal separation is the suction blister method, whereby the strength of dermoepidermal adhesion is characterized by blistering time. To identify and quantify influencing factors on blistering time in healthy humans. A search in the Medline and Embase databases (1946 to June 2014) and in reference lists was conducted. In total, results of 146 suction blister experiments in 3418 individuals reported in 59 publications were analysed. The median blister diameter was 6 mm (IQR 5-6) and the median suction pressure was -210 mmHg (IQR -200 to -300), resulting in a median blistering time of 75 min (IQR 48-120). In the multivariate model, skin temperature and age were the strongest predictors for suction blistering time (P < 0·001, R(2) adjusted = 0·707). This strong association between temperature and suction blistering indicates that the dermoepidermal junction loses its strength with increasing skin temperature. This finding supports the practice of skin and tissue cooling to prevent injuries. The increased vulnerability of the skin seems to exist irrespectively of applied mechanical loads. We conclude that blistering time is an important and clinically relevant (outcome) parameter measuring the structural and mechanical integrity of deeper cutaneous layers.
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Sprenger HG, Langebeek N, Mulder PGH, Ten Napel CHH, Vriesendorp R, Hoepelman AIM, Legrand JC, Koopmans PP, Bravenboer B, Ten Kate RW, Groeneveld P, Bierman W, van der Werf T, Gisolf E, Richter C. A randomized controlled trial of single-class maintenance therapy with abacavir/lamivudine/zidovudine after standard triple antiretroviral induction therapy: final 96-week results from the FREE study. HIV Med 2014; 16:122-31. [PMID: 25472825 DOI: 10.1111/hiv.12186] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/29/2014] [Indexed: 12/13/2022]
Abstract
OBJECTIVES The aim of the study was to test the antiviral efficacy of a triple nucleoside reverse transcriptase inhibitor (NRTI) regimen, with potential beneficial metabolic effects, as maintenance therapy after induction with dual NRTIs and a boosted protease inhibitor (PI). METHODS An open-label, noninferiority study was carried out. Antiretroviral therapy (ART)-naïve patients with CD4 count ≤ 350 cells/μL and HIV-1 RNA >30000 copies/mL (n=207) were treated with zidovudine/lamivudine and lopinavir/ritonavir. After achieving HIV-1 RNA <50 copies/mL on two consecutive occasions between weeks 12 and 24 after baseline, 120 patients (baseline: median HIV-1 RNA 5.19 log10 copies/mL; median CD4 count 180 cells/μL) were randomized to receive abacavir/lamivudine/zidovudine (ABC/3TC/ZDV) (n=61) or to continue the PI-based ART (n=59). RESULTS For the proportions of patients (intention-to-treat; missing=failure) with HIV-1 RNA <400 copies/mL (PI group, 66%; ABC/3TC/ZDV group, 71%) and <50 copies/mL (PI group, 63%; ABC/3TC/ZDV group, 62%) at 96 weeks, switching to ABC/3TC/ZDV was noninferior compared with continuing the PI regimen; the difference in failure rate (ABC/3TC/ZDV minus PI) was -4.4 percentage points [95% confidence interval (CI) -21.0 to +12.3 percentage points] and +0.4 percentage points (95% CI -16.9 to +17.7 percentage points), respectively. In the per protocol analysis, the difference in virological failure for HIV-1 RNA >400 copies/mL (0 of 39 patients in the PI group and two of 45 patients in the NRTI group) and for HIV-1 RNA >50 copies/mL (two of 39 and three of 45 patients, respectively) was +4.4 percentage points (95% CI -2.1 to +11.0 percentage points) and +1.5 percentage points (95% CI -8.6 to +11.7 percentage points), respectively, also showing noninferiority. Serum lipids significantly improved in the NRTI group, but not in the PI arm. CONCLUSIONS A single-class NRTI regimen after successful induction with standard ART had similar antiviral efficacy compared to continuation of a PI-based regimen at 96 weeks after baseline, with improved serum lipids.
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Paranjpe M, Finke J, Richter C, Gothsch T, Kwade A, Büttgenbach S, Müller-Goymann C. Physicochemical characterization of sildenafil-loaded solid lipid nanoparticle dispersions (SLN) for pulmonary application. Int J Pharm 2014; 476:41-9. [DOI: 10.1016/j.ijpharm.2014.09.031] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 09/16/2014] [Accepted: 09/23/2014] [Indexed: 11/16/2022]
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Richter C, Marshall B, Franklin-Miller A, King E, Falvey E, Moran K. Kinematic and kinetic changes in a single leg drop landing task following athletic groin pain rehabilitation. J Sci Med Sport 2014. [DOI: 10.1016/j.jsams.2014.11.213] [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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138
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Sagnol O, Richter C, Field LH, Reitsma F. Spatio-temporal distribution of sperm whales (Physeter macrocephalus) off Kaikoura, New Zealand, in relation to bathymetric features. NEW ZEALAND JOURNAL OF ZOOLOGY 2014. [DOI: 10.1080/03014223.2014.936474] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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139
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Awater SPJ, Gisolf EH, Richter C. A small abscess with severe complications. Neth J Med 2014; 72:373-377. [PMID: 25178772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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140
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Deinert JC, Wegkamp D, Meyer M, Richter C, Wolf M, Stähler J. Ultrafast exciton formation at the ZnO(1010) surface. PHYSICAL REVIEW LETTERS 2014; 113:057602. [PMID: 25126937 DOI: 10.1103/physrevlett.113.057602] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Indexed: 06/03/2023]
Abstract
We study the ultrafast quasiparticle dynamics in and below the ZnO conduction band using femtosecond time-resolved two-photon photoelectron spectroscopy. Above band gap excitation causes hot electron relaxation by electron-phonon scattering down to the Fermi level E_{F} followed by ultrafast (200 fs) formation of a surface exciton (SX). Transient screening of the Coulomb interaction reduces the SX formation probability at high excitation densities near the Mott limit. Located just below the surface, the SX are stable with regard to hydrogen-induced work function modifications and thus the ideal prerequisite for resonant energy transfer applications.
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141
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Quick M, Dobryakov AL, Gerecke M, Richter C, Berndt F, Ioffe IN, Granovsky AA, Mahrwald R, Ernsting NP, Kovalenko SA. Photoisomerization Dynamics and Pathways of trans- and cis-Azobenzene in Solution from Broadband Femtosecond Spectroscopies and Calculations. J Phys Chem B 2014; 118:8756-71. [DOI: 10.1021/jp504999f] [Citation(s) in RCA: 125] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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142
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Walz M, Hermen J, Madsack B, Kolodziej M, Borowski M, Bressel S, Bender T, Simmler R, Fiebich M, Richter C, Kolder R, Weisser G. IVEU-Projekt: Erfassung und Auswertung von DICOM – Header – Daten, Strahlenexpositionen und Untersuchungsparametern bei Ärztlichen Stellen und Strahlenanwendern. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1372712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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143
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Paranjpe M, Neuhaus V, Finke JH, Richter C, Gothsch T, Kwade A, Büttgenbach S, Braun A, Müller-Goymann CC. In vitro and ex vivo toxicological testing of sildenafil-loaded solid lipid nanoparticles. Inhal Toxicol 2014; 25:536-43. [PMID: 23905970 DOI: 10.3109/08958378.2013.810315] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The aim of this study was to investigate the potential cytotoxicity of solid lipid nanoparticles (SLN) loaded with sildenafil. The SLNs were tested as a new drug delivery system (DDS) for the inhalable treatment of pulmonary hypertension in human lungs. Solubility of sildenafil in SLN lipid matrix (30:70 phospholipid:triglyceride) was determined to 1% sildenafil base and 0.1% sildenafil citrate, respectively. Sildenafil-loaded SLN with particle size of approximately 180 nm and monomodal particle size distribution were successfully manufactured using a novel microchannel homogenization method and were stable up to three months. Sildenafil-loaded SLN were then used in in vitro and ex vivo models representing lung and heart tissue. For in vitro models, human alveolar epithelial cell line (A459) and mouse heart endothelium cell line (MHEC5-T) were used. For ex vivo models, rat precision cut lung slices (PCLS) and rat heart slices (PCHS) were used. All the models were treated with plain SLN and sildenafil-loaded SLN in a concentration range of 0-5000 µg/ml of lipid matrix. The toxicity was evaluated in vitro and ex vivo by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Median lethal dose 50% (LD50) values for A549 cells and PCLS were found to be in the range of 1200-1900 µg/ml while for MHEC5-T cells and precision cut heart slices values were found between 1500 and 2800 µg/ml. PCHS showed slightly higher LD50 values in comparison to PCLS. Considering the toxicological aspects, sildenafil-loaded SLN could have potential in the treatment of pulmonary hypertension via inhalation route.
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Burmester G, Müller-Ladner U, Nüsslein H, von Hinuber U, Edelmann E, Detert J, Höhle M, Richter C, Klopsch T, Kumke T, Fricke D. AB0467 Rapid achievement of remission with certolizumab pegol was maintained for one year: interim results from fast, a german non-interventional study in rheumatoid arthritis real life patients. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2012-eular.467] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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145
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Richter C, Pausch G, Seco J, Bortfeld T, Enghardt W. Increasing precision in particle therapy: In vivo dosimetry and beyond. Phys Med 2014. [DOI: 10.1016/j.ejmp.2014.07.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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146
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Bandurska-Luque A, Abolmaali N, Haase R, Löck S, Zips D, Zöphel K, Perrin R, Richter C, Krause M, Baumann M. PO-0958: Hypoxia in tumor and LN metastases in course of radiochemotherapy of advanced head-and-neck cancers. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31076-8] [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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147
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Richter C, Seco J, Duda D, Bortfeld T. PD-0403: Radiation-induced changes in hepatocyte-specific Gd-EOB-DTPA enhanced MRI: Potential mechanism. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)30508-9] [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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148
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Langebeek N, Sprenger HG, Gisolf EH, Reiss P, Sprangers MAG, Legrand JC, Richter C, Nieuwkerk PT. A simplified combination antiretroviral therapy regimen enhances adherence, treatment satisfaction and quality of life: results of a randomized clinical trial. HIV Med 2013; 15:286-90. [DOI: 10.1111/hiv.12112] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/02/2013] [Indexed: 12/20/2022]
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149
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Yarin YM, Lukashkin AN, Poznyakovskiy AA, Meissner H, Fleischer M, Baumgart J, Richter C, Kuhlisch E, Zahnert T. Tonotopic morphometry of the lamina reticularis of the guinea pig cochlea with associated microstructures and related mechanical implications. J Assoc Res Otolaryngol 2013; 15:1-11. [PMID: 24165807 DOI: 10.1007/s10162-013-0420-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Accepted: 09/24/2013] [Indexed: 10/26/2022] Open
Abstract
Morphometry of the lamina reticularis of the guinea pig cochlea was performed using scanning electron microscopy. Seventy-four geometrical parameters of the lamina reticularis, the bundles of stereocilia, and individual stereocilia, in all rows of hair cells and within the individual hair cells, were measured at ten equally spaced locations along the longitudinal direction of the cochlea. Variations of the parameters versus the longitudinal coordinate were statistically analyzed and fitted with polynomials (constant, linear, or quadratic). Our data show that a unique set of geometrical parameters of inner and outer hair cells is typical for every frequency-dependent position at the lamina reticularis. Morphology of the outer hair cell structures varies more than respective parameters of the inner hair cells. Mechanical modeling using the obtained geometrical parameters provides a novel glance at the mechanical characteristics with respect to the cochlear tonotopy.
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Richter C, Schweier R, Romppel M, Grande G. Erfolgreiche Peers als Modell. Ein internetbasiertes Unterstützungsangebot zur nachhaltigen Lebensstilmodifikation. PHYSIKALISCHE MEDIZIN REHABILITATIONSMEDIZIN KURORTMEDIZIN 2013. [DOI: 10.1055/s-0033-1355347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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